moxa.c revision 11324edd4ad34981764b25bed44d46a1507b62e1
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/*****************************************************************************/ 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * moxa.c -- MOXA Intellio family multiport serial driver. 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (C) 1999-2000 Moxa Technologies (support@moxa.com.tw). 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This code is loosely based on the Linux serial driver, written by 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Linus Torvalds, Theodore T'so and others. 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is free software; you can redistribute it and/or modify 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it under the terms of the GNU General Public License as published by 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the Free Software Foundation; either version 2 of the License, or 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (at your option) any later version. 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * MOXA Intellio Series Driver 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for : LINUX 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * date : 1999/1/7 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * version : 5.1 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/types.h> 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/mm.h> 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/ioport.h> 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/errno.h> 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/signal.h> 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/sched.h> 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/timer.h> 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/interrupt.h> 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/tty.h> 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/tty_flip.h> 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/major.h> 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/string.h> 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/fcntl.h> 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/ptrace.h> 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/serial.h> 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/tty_driver.h> 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/delay.h> 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/pci.h> 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/bitops.h> 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/system.h> 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/io.h> 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/uaccess.h> 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4911324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby#define MOXA_VERSION "5.1k" 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5111324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby#define MOXAMAJOR 172 5211324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby#define MOXACUMAJOR 173 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5411324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby#define MAX_BOARDS 4 /* Don't change this value */ 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MAX_PORTS_PER_BOARD 32 /* Don't change this value */ 5611324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby#define MAX_PORTS (MAX_BOARDS * MAX_PORTS_PER_BOARD) 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Define the Moxa PCI vendor and device IDs. 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6111324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby#define MOXA_BUS_TYPE_ISA 0 6211324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby#define MOXA_BUS_TYPE_PCI 1 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsenum { 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MOXA_BOARD_C218_PCI = 1, 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MOXA_BOARD_C218_ISA, 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MOXA_BOARD_C320_PCI, 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MOXA_BOARD_C320_ISA, 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MOXA_BOARD_CP204J, 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic char *moxa_brdname[] = 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "C218 Turbo PCI series", 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "C218 Turbo ISA series", 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "C320 Turbo PCI series", 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "C320 Turbo ISA series", 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "CP-204J series", 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PCI 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct pci_device_id moxa_pcibrds[] = { 835ebb4078af0dab866fdf57f84f72b9e9a7e8c6b8Jiri Slaby { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C218), 845ebb4078af0dab866fdf57f84f72b9e9a7e8c6b8Jiri Slaby .driver_data = MOXA_BOARD_C218_PCI }, 855ebb4078af0dab866fdf57f84f72b9e9a7e8c6b8Jiri Slaby { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C320), 865ebb4078af0dab866fdf57f84f72b9e9a7e8c6b8Jiri Slaby .driver_data = MOXA_BOARD_C320_PCI }, 875ebb4078af0dab866fdf57f84f72b9e9a7e8c6b8Jiri Slaby { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP204J), 885ebb4078af0dab866fdf57f84f72b9e9a7e8c6b8Jiri Slaby .driver_data = MOXA_BOARD_CP204J }, 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DEVICE_TABLE(pci, moxa_pcibrds); 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_PCI */ 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 949dff89cd82af7bccc706fed288b1c33a51c3b937Jiri Slabystruct moxa_isa_board_conf { 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int boardType; 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int numPorts; 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long baseAddr; 989dff89cd82af7bccc706fed288b1c33a51c3b937Jiri Slaby}; 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1009dff89cd82af7bccc706fed288b1c33a51c3b937Jiri Slabystatic struct moxa_isa_board_conf moxa_isa_boards[] = 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* {MOXA_BOARD_C218_ISA,8,0xDC000}, */ 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1059dff89cd82af7bccc706fed288b1c33a51c3b937Jiri Slabystruct moxa_pci_devinfo { 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort busNum; 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort devNum; 10886fbf1486a44a4bce4fdcbe3665a7d8a62ba958aJiri Slaby struct pci_dev *pdev; 1099dff89cd82af7bccc706fed288b1c33a51c3b937Jiri Slaby}; 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1119dff89cd82af7bccc706fed288b1c33a51c3b937Jiri Slabystruct moxa_board_conf { 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int boardType; 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int numPorts; 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long baseAddr; 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int busType; 1169dff89cd82af7bccc706fed288b1c33a51c3b937Jiri Slaby struct moxa_pci_devinfo pciInfo; 1179dff89cd82af7bccc706fed288b1c33a51c3b937Jiri Slaby}; 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1199dff89cd82af7bccc706fed288b1c33a51c3b937Jiri Slabystatic struct moxa_board_conf moxa_boards[MAX_BOARDS]; 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __iomem *moxaBaseAddr[MAX_BOARDS]; 12101cfaf0d12ae5fa092cc916ca4066ee1598e857dDirk Eibachstatic int loadstat[MAX_BOARDS]; 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct moxa_str { 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int type; 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int port; 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int close_delay; 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned short closing_wait; 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int count; 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int blocked_open; 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds long event; /* long req'd for set_bit --RR */ 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int asyncflags; 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long statusflags; 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct tty_struct *tty; 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int cflag; 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wait_queue_head_t open_wait; 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wait_queue_head_t close_wait; 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct mxser_mstatus { 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tcflag_t cflag; 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int cts; 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int dsr; 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ri; 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int dcd; 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct mxser_mstatus GMStatus[MAX_PORTS]; 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* statusflags */ 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXSTOPPED 0x1 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LOWWAIT 0x2 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define EMPTYWAIT 0x4 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define THROTTLE 0x8 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SERIAL_DO_RESTART 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define WAKEUP_CHARS 256 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int verbose = 0; 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int ttymajor = MOXAMAJOR; 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Variables for insmod */ 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef MODULE 1639fa372a850b9ffcb177eb9ac0b75963b2f9af233Jiri Slabystatic int baseaddr[4]; 1649fa372a850b9ffcb177eb9ac0b75963b2f9af233Jiri Slabystatic int type[4]; 1659fa372a850b9ffcb177eb9ac0b75963b2f9af233Jiri Slabystatic int numports[4]; 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_AUTHOR("William Chen"); 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DESCRIPTION("MOXA Intellio Family Multiport Board Device Driver"); 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("GPL"); 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef MODULE 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_param_array(type, int, NULL, 0); 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_param_array(baseaddr, int, NULL, 0); 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_param_array(numports, int, NULL, 0); 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_param(ttymajor, int, 0); 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_param(verbose, bool, 0644); 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * static functions: 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_open(struct tty_struct *, struct file *); 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_close(struct tty_struct *, struct file *); 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_write(struct tty_struct *, const unsigned char *, int); 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_write_room(struct tty_struct *); 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_flush_buffer(struct tty_struct *); 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_chars_in_buffer(struct tty_struct *); 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_flush_chars(struct tty_struct *); 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_put_char(struct tty_struct *, unsigned char); 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_ioctl(struct tty_struct *, struct file *, unsigned int, unsigned long); 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_throttle(struct tty_struct *); 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_unthrottle(struct tty_struct *); 193606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Coxstatic void moxa_set_termios(struct tty_struct *, struct ktermios *); 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_stop(struct tty_struct *); 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_start(struct tty_struct *); 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_hangup(struct tty_struct *); 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_tiocmget(struct tty_struct *tty, struct file *file); 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_tiocmset(struct tty_struct *tty, struct file *file, 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int set, unsigned int clear); 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_poll(unsigned long); 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void set_tty_param(struct tty_struct *); 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int block_till_ready(struct tty_struct *, struct file *, 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct moxa_str *); 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void setup_empty_event(struct tty_struct *); 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void check_xmit_empty(unsigned long); 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void shut_down(struct moxa_str *); 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void receive_data(struct moxa_str *); 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * moxa board interface functions: 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void MoxaDriverInit(void); 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int MoxaDriverIoctl(unsigned int, unsigned long, int); 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int MoxaDriverPoll(void); 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int MoxaPortsOfCard(int); 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int MoxaPortIsValid(int); 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void MoxaPortEnable(int); 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void MoxaPortDisable(int); 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic long MoxaPortGetMaxBaud(int); 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic long MoxaPortSetBaud(int, long); 220606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Coxstatic int MoxaPortSetTermio(int, struct ktermios *, speed_t); 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int MoxaPortGetLineOut(int, int *, int *); 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void MoxaPortLineCtrl(int, int, int); 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void MoxaPortFlowCtrl(int, int, int, int, int, int); 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int MoxaPortLineStatus(int); 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int MoxaPortDCDChange(int); 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int MoxaPortDCDON(int); 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void MoxaPortFlushData(int, int); 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int MoxaPortWriteData(int, unsigned char *, int); 22933f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Coxstatic int MoxaPortReadData(int, struct tty_struct *tty); 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int MoxaPortTxQueue(int); 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int MoxaPortRxQueue(int); 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int MoxaPortTxFree(int); 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void MoxaPortTxDisable(int); 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void MoxaPortTxEnable(int); 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int MoxaPortResetBrkCnt(int); 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void MoxaPortSendBreak(int, int); 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_get_serial_info(struct moxa_str *, struct serial_struct __user *); 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_set_serial_info(struct moxa_str *, struct serial_struct __user *); 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void MoxaSetFifo(int port, int enable); 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 241b68e31d0ebbcc909d1941f9f230c9d062a3a13d3Jeff Dikestatic const struct tty_operations moxa_ops = { 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .open = moxa_open, 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .close = moxa_close, 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .write = moxa_write, 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .write_room = moxa_write_room, 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .flush_buffer = moxa_flush_buffer, 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .chars_in_buffer = moxa_chars_in_buffer, 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .flush_chars = moxa_flush_chars, 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .put_char = moxa_put_char, 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .ioctl = moxa_ioctl, 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .throttle = moxa_throttle, 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .unthrottle = moxa_unthrottle, 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .set_termios = moxa_set_termios, 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .stop = moxa_stop, 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .start = moxa_start, 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .hangup = moxa_hangup, 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .tiocmget = moxa_tiocmget, 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .tiocmset = moxa_tiocmset, 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 261aa7e5221fb47badbea618cc62704d6e4a4bcce15Jiri Slabystatic struct tty_driver *moxaDriver; 262aa7e5221fb47badbea618cc62704d6e4a4bcce15Jiri Slabystatic struct moxa_str moxaChannels[MAX_PORTS]; 263aa7e5221fb47badbea618cc62704d6e4a4bcce15Jiri Slabystatic DEFINE_TIMER(moxaTimer, moxa_poll, 0, 0); 264aa7e5221fb47badbea618cc62704d6e4a4bcce15Jiri Slabystatic struct timer_list moxaEmptyTimer[MAX_PORTS]; 26534af946a22724c4e2b204957f2b24b22a0fb121cIngo Molnarstatic DEFINE_SPINLOCK(moxa_lock); 26633f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PCI 2689dff89cd82af7bccc706fed288b1c33a51c3b937Jiri Slabystatic int moxa_get_PCI_conf(struct pci_dev *p, int board_type, 2699dff89cd82af7bccc706fed288b1c33a51c3b937Jiri Slaby struct moxa_board_conf *board) 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds board->baseAddr = pci_resource_start (p, 2); 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds board->boardType = board_type; 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (board_type) { 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_BOARD_C218_ISA: 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_BOARD_C218_PCI: 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds board->numPorts = 8; 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_BOARD_CP204J: 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds board->numPorts = 4; 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds board->numPorts = 0; 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds board->busType = MOXA_BUS_TYPE_PCI; 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds board->pciInfo.busNum = p->bus->number; 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds board->pciInfo.devNum = p->devfn >> 3; 28986fbf1486a44a4bce4fdcbe3665a7d8a62ba958aJiri Slaby board->pciInfo.pdev = p; 29086fbf1486a44a4bce4fdcbe3665a7d8a62ba958aJiri Slaby /* don't lose the reference in the next pci_get_device iteration */ 29186fbf1486a44a4bce4fdcbe3665a7d8a62ba958aJiri Slaby pci_dev_get(p); 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_PCI */ 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init moxa_init(void) 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, numBoards; 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct moxa_str *ch; 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "MOXA Intellio family driver version %s\n", MOXA_VERSION); 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver = alloc_tty_driver(MAX_PORTS + 1); 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!moxaDriver) 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->owner = THIS_MODULE; 3089b4e3b13b147e9b737de63188a9ae740eaa8c36dSergey Vlasov moxaDriver->name = "ttyMX"; 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->major = ttymajor; 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->minor_start = 0; 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->type = TTY_DRIVER_TYPE_SERIAL; 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->subtype = SERIAL_TYPE_NORMAL; 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->init_termios = tty_std_termios; 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->init_termios.c_cflag = B9600 | CS8 | CREAD | CLOCAL | HUPCL; 315606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Cox moxaDriver->init_termios.c_ispeed = 9600; 316606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Cox moxaDriver->init_termios.c_ospeed = 9600; 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->flags = TTY_DRIVER_REAL_RAW; 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_set_operations(moxaDriver, &moxa_ops); 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0, ch = moxaChannels; i < MAX_PORTS; i++, ch++) { 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->type = PORT_16550A; 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->port = i; 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->close_delay = 5 * HZ / 10; 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->closing_wait = 30 * HZ; 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->cflag = B9600 | CS8 | CREAD | CLOCAL | HUPCL; 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_waitqueue_head(&ch->open_wait); 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_waitqueue_head(&ch->close_wait); 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Tty devices major number = %d\n", ttymajor); 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tty_register_driver(moxaDriver)) { 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "Couldn't install MOXA Smartio family driver !\n"); 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds put_tty_driver(moxaDriver); 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -1; 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 337aa7e5221fb47badbea618cc62704d6e4a4bcce15Jiri Slaby for (i = 0; i < MAX_PORTS; i++) 338aa7e5221fb47badbea618cc62704d6e4a4bcce15Jiri Slaby setup_timer(&moxaEmptyTimer[i], check_xmit_empty, 339aa7e5221fb47badbea618cc62704d6e4a4bcce15Jiri Slaby (unsigned long)&moxaChannels[i]); 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 341aa7e5221fb47badbea618cc62704d6e4a4bcce15Jiri Slaby mod_timer(&moxaTimer, jiffies + HZ / 50); 3421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Find the boards defined in source code */ 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds numBoards = 0; 3451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < MAX_BOARDS; i++) { 3461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((moxa_isa_boards[i].boardType == MOXA_BOARD_C218_ISA) || 3471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (moxa_isa_boards[i].boardType == MOXA_BOARD_C320_ISA)) { 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxa_boards[numBoards].boardType = moxa_isa_boards[i].boardType; 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (moxa_isa_boards[i].boardType == MOXA_BOARD_C218_ISA) 3501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxa_boards[numBoards].numPorts = 8; 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxa_boards[numBoards].numPorts = moxa_isa_boards[i].numPorts; 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxa_boards[numBoards].busType = MOXA_BUS_TYPE_ISA; 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxa_boards[numBoards].baseAddr = moxa_isa_boards[i].baseAddr; 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (verbose) 3561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Board %2d: %s board(baseAddr=%lx)\n", 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds numBoards + 1, 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxa_brdname[moxa_boards[numBoards].boardType - 1], 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxa_boards[numBoards].baseAddr); 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds numBoards++; 3611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Find the boards defined form module args. */ 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef MODULE 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < MAX_BOARDS; i++) { 3661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((type[i] == MOXA_BOARD_C218_ISA) || 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (type[i] == MOXA_BOARD_C320_ISA)) { 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (verbose) 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Board %2d: %s board(baseAddr=%lx)\n", 3701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds numBoards + 1, 3711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxa_brdname[type[i] - 1], 3721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (unsigned long) baseaddr[i]); 3731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (numBoards >= MAX_BOARDS) { 3741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (verbose) 3751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("More than %d MOXA Intellio family boards found. Board is ignored.", MAX_BOARDS); 3761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 3771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxa_boards[numBoards].boardType = type[i]; 3791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (moxa_isa_boards[i].boardType == MOXA_BOARD_C218_ISA) 3801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxa_boards[numBoards].numPorts = 8; 3811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 3821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxa_boards[numBoards].numPorts = numports[i]; 3831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxa_boards[numBoards].busType = MOXA_BUS_TYPE_ISA; 3841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxa_boards[numBoards].baseAddr = baseaddr[i]; 3851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds numBoards++; 3861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 3891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Find PCI boards here */ 3901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PCI 3911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 3921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_dev *p = NULL; 393fe971071a89c5c5184fc9f3482c7a8e997cf0520Tobias Klauser int n = ARRAY_SIZE(moxa_pcibrds) - 1; 3941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = 0; 3951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (i < n) { 396881a8c120acf7ec09c90289e2996b7c70f51e996Amit Gud while ((p = pci_get_device(moxa_pcibrds[i].vendor, moxa_pcibrds[i].device, p))!=NULL) 3971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 3981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (pci_enable_device(p)) 3991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 4001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (numBoards >= MAX_BOARDS) { 4011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (verbose) 4021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("More than %d MOXA Intellio family boards found. Board is ignored.", MAX_BOARDS); 4031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 4041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxa_get_PCI_conf(p, moxa_pcibrds[i].driver_data, 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &moxa_boards[numBoards]); 4061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds numBoards++; 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i++; 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 4131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < numBoards; i++) { 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaBaseAddr[i] = ioremap((unsigned long) moxa_boards[i].baseAddr, 0x4000); 4151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __exit moxa_exit(void) 4211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 4231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (verbose) 4251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Unloading module moxa ...\n"); 4261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 427aa7e5221fb47badbea618cc62704d6e4a4bcce15Jiri Slaby del_timer(&moxaTimer); 4281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < MAX_PORTS; i++) 430aa7e5221fb47badbea618cc62704d6e4a4bcce15Jiri Slaby del_timer(&moxaEmptyTimer[i]); 4311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tty_unregister_driver(moxaDriver)) 4331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Couldn't unregister MOXA Intellio family serial driver\n"); 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds put_tty_driver(moxaDriver); 43586fbf1486a44a4bce4fdcbe3665a7d8a62ba958aJiri Slaby 43641bdabbb6d951cf4a9fbfe33783749b87662b02dAmol Lad for (i = 0; i < MAX_BOARDS; i++) { 43741bdabbb6d951cf4a9fbfe33783749b87662b02dAmol Lad if (moxaBaseAddr[i]) 43841bdabbb6d951cf4a9fbfe33783749b87662b02dAmol Lad iounmap(moxaBaseAddr[i]); 43986fbf1486a44a4bce4fdcbe3665a7d8a62ba958aJiri Slaby if (moxa_boards[i].busType == MOXA_BUS_TYPE_PCI) 44086fbf1486a44a4bce4fdcbe3665a7d8a62ba958aJiri Slaby pci_dev_put(moxa_boards[i].pciInfo.pdev); 44141bdabbb6d951cf4a9fbfe33783749b87662b02dAmol Lad } 44286fbf1486a44a4bce4fdcbe3665a7d8a62ba958aJiri Slaby 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (verbose) 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Done\n"); 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_init(moxa_init); 4481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_exit(moxa_exit); 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_open(struct tty_struct *tty, struct file *filp) 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct moxa_str *ch; 4531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int port; 4541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int retval; 4551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 45611324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby port = tty->index; 4571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port == MAX_PORTS) { 4581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 4591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!MoxaPortIsValid(port)) { 4611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty->driver_data = NULL; 4621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-ENODEV); 4631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch = &moxaChannels[port]; 4661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->count++; 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty->driver_data = ch; 4681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->tty = tty; 4691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(ch->asyncflags & ASYNC_INITIALIZED)) { 4701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags = 0; 4711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_tty_param(tty); 4721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortLineCtrl(ch->port, 1, 1); 4731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortEnable(ch->port); 4741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags |= ASYNC_INITIALIZED; 4751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retval = block_till_ready(tty, filp, ch); 4771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxa_unthrottle(tty); 4791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->type == PORT_16550A) { 4811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaSetFifo(ch->port, 1); 4821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 4831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaSetFifo(ch->port, 0); 4841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (retval); 4871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_close(struct tty_struct *tty, struct file *filp) 4901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct moxa_str *ch; 4921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int port; 4931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 49411324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby port = tty->index; 4951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port == MAX_PORTS) { 4961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 4971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!MoxaPortIsValid(port)) { 4991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef SERIAL_DEBUG_CLOSE 5001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Invalid portno in moxa_close\n"); 5011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 5021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty->driver_data = NULL; 5031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 5041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tty->driver_data == NULL) { 5061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 5071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tty_hung_up_p(filp)) { 5091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 5101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch = (struct moxa_str *) tty->driver_data; 5121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((tty->count == 1) && (ch->count != 1)) { 5141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("moxa_close: bad serial port count; tty->count is 1, " 5151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "ch->count is %d\n", ch->count); 5161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->count = 1; 5171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (--ch->count < 0) { 5191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("moxa_close: bad serial port count, device=%s\n", 5201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty->name); 5211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->count = 0; 5221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->count) { 5241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 5251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags |= ASYNC_CLOSING; 5271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->cflag = tty->termios->c_cflag; 5291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->asyncflags & ASYNC_INITIALIZED) { 5301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setup_empty_event(tty); 5311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_wait_until_sent(tty, 30 * HZ); /* 30 seconds timeout */ 5321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds del_timer(&moxaEmptyTimer[ch->port]); 5331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds shut_down(ch); 5351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortFlushData(port, 2); 5361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tty->driver->flush_buffer) 5381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty->driver->flush_buffer(tty); 5391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_ldisc_flush(tty); 5401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty->closing = 0; 5421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->event = 0; 5431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->tty = NULL; 5441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->blocked_open) { 5451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->close_delay) { 5461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds msleep_interruptible(jiffies_to_msecs(ch->close_delay)); 5471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wake_up_interruptible(&ch->open_wait); 5491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING); 5511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wake_up_interruptible(&ch->close_wait); 5521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_write(struct tty_struct *tty, 5551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const unsigned char *buf, int count) 5561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct moxa_str *ch; 5581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int len, port; 5591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch = (struct moxa_str *) tty->driver_data; 5621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 5631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 5641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port = ch->port; 56533f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox 56633f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_lock_irqsave(&moxa_lock, flags); 5671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = MoxaPortWriteData(port, (unsigned char *) buf, count); 56833f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_unlock_irqrestore(&moxa_lock, flags); 5691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /********************************************* 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ( !(ch->statusflags & LOWWAIT) && 5721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ((len != count) || (MoxaPortTxFree(port) <= 100)) ) 5731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ************************************************/ 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags |= LOWWAIT; 5751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (len); 5761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_write_room(struct tty_struct *tty) 5791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct moxa_str *ch; 5811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tty->stopped) 5831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 5841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch = (struct moxa_str *) tty->driver_data; 5851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 5861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (MoxaPortTxFree(ch->port)); 5881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_flush_buffer(struct tty_struct *tty) 5911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct moxa_str *ch = (struct moxa_str *) tty->driver_data; 5931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 5951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 5961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortFlushData(ch->port, 1); 5971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_wakeup(tty); 5981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_chars_in_buffer(struct tty_struct *tty) 6011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int chars; 6031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct moxa_str *ch = (struct moxa_str *) tty->driver_data; 6041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 6061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Sigh...I have to check if driver_data is NULL here, because 6071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * if an open() fails, the TTY subsystem eventually calls 6081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * tty_wait_until_sent(), which calls the driver's chars_in_buffer() 6091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * routine. And since the open() failed, we return 0 here. TDJ 6101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 6121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 6131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds chars = MoxaPortTxQueue(ch->port); 6141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (chars) { 6151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 6161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Make it possible to wakeup anything waiting for output 6171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * in tty_ioctl.c, etc. 6181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(ch->statusflags & EMPTYWAIT)) 6201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setup_empty_event(tty); 6211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (chars); 6231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_flush_chars(struct tty_struct *tty) 6261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 6281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Don't think I need this, because this is called to empty the TX 6291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * buffer for the 16450, 16550, etc. 6301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_put_char(struct tty_struct *tty, unsigned char c) 6341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct moxa_str *ch; 6361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int port; 6371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 6381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch = (struct moxa_str *) tty->driver_data; 6401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 6411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 6421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port = ch->port; 64333f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_lock_irqsave(&moxa_lock, flags); 644f204d2672044f0f7061d645f0f59f8535b63d106Jiri Slaby MoxaPortWriteData(port, &c, 1); 64533f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_unlock_irqrestore(&moxa_lock, flags); 6461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /************************************************ 6471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ( !(ch->statusflags & LOWWAIT) && (MoxaPortTxFree(port) <= 100) ) 6481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *************************************************/ 6491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags |= LOWWAIT; 6501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_tiocmget(struct tty_struct *tty, struct file *file) 6531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct moxa_str *ch = (struct moxa_str *) tty->driver_data; 6551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int port; 6561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int flag = 0, dtr, rts; 6571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 65811324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby port = tty->index; 6591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((port != MAX_PORTS) && (!ch)) 6601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-EINVAL); 6611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortGetLineOut(ch->port, &dtr, &rts); 6631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dtr) 6641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds flag |= TIOCM_DTR; 6651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rts) 6661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds flag |= TIOCM_RTS; 6671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dtr = MoxaPortLineStatus(ch->port); 6681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dtr & 1) 6691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds flag |= TIOCM_CTS; 6701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dtr & 2) 6711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds flag |= TIOCM_DSR; 6721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dtr & 4) 6731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds flag |= TIOCM_CD; 6741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return flag; 6751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_tiocmset(struct tty_struct *tty, struct file *file, 6781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int set, unsigned int clear) 6791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct moxa_str *ch = (struct moxa_str *) tty->driver_data; 6811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int port; 6821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int dtr, rts; 6831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 68411324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby port = tty->index; 6851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((port != MAX_PORTS) && (!ch)) 6861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-EINVAL); 6871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortGetLineOut(ch->port, &dtr, &rts); 6891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (set & TIOCM_RTS) 6901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rts = 1; 6911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (set & TIOCM_DTR) 6921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dtr = 1; 6931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (clear & TIOCM_RTS) 6941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rts = 0; 6951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (clear & TIOCM_DTR) 6961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dtr = 0; 6971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortLineCtrl(ch->port, dtr, rts); 6981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 6991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_ioctl(struct tty_struct *tty, struct file *file, 7021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int cmd, unsigned long arg) 7031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct moxa_str *ch = (struct moxa_str *) tty->driver_data; 7051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds register int port; 7061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __user *argp = (void __user *)arg; 7071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int retval; 7081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 70911324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby port = tty->index; 7101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((port != MAX_PORTS) && (!ch)) 7111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-EINVAL); 7121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (cmd) { 7141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TCSBRK: /* SVID version: non-zero arg --> no break */ 7151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retval = tty_check_change(tty); 7161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) 7171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (retval); 7181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setup_empty_event(tty); 7191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_wait_until_sent(tty, 0); 7201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!arg) 7211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortSendBreak(ch->port, 0); 7221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 7231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TCSBRKP: /* support for POSIX tcsendbreak() */ 7241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retval = tty_check_change(tty); 7251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) 7261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (retval); 7271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setup_empty_event(tty); 7281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_wait_until_sent(tty, 0); 7291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortSendBreak(ch->port, arg); 7301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 7311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TIOCGSOFTCAR: 7321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return put_user(C_CLOCAL(tty) ? 1 : 0, (unsigned long __user *) argp); 7331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TIOCSSOFTCAR: 7341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(get_user(retval, (unsigned long __user *) argp)) 7351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 7361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds arg = retval; 7371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty->termios->c_cflag = ((tty->termios->c_cflag & ~CLOCAL) | 7381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (arg ? CLOCAL : 0)); 7391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (C_CLOCAL(tty)) 7401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags &= ~ASYNC_CHECK_CD; 7411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 7421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags |= ASYNC_CHECK_CD; 7431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 7441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TIOCGSERIAL: 7451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return moxa_get_serial_info(ch, argp); 7461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TIOCSSERIAL: 7481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return moxa_set_serial_info(ch, argp); 7491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 7501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retval = MoxaDriverIoctl(cmd, arg, port); 7511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (retval); 7531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_throttle(struct tty_struct *tty) 7561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct moxa_str *ch = (struct moxa_str *) tty->driver_data; 7581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags |= THROTTLE; 7601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_unthrottle(struct tty_struct *tty) 7631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct moxa_str *ch = (struct moxa_str *) tty->driver_data; 7651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags &= ~THROTTLE; 7671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_set_termios(struct tty_struct *tty, 770606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Cox struct ktermios *old_termios) 7711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct moxa_str *ch = (struct moxa_str *) tty->driver_data; 7731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 7751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 7761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_tty_param(tty); 7771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(old_termios->c_cflag & CLOCAL) && 7781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (tty->termios->c_cflag & CLOCAL)) 7791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wake_up_interruptible(&ch->open_wait); 7801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_stop(struct tty_struct *tty) 7831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct moxa_str *ch = (struct moxa_str *) tty->driver_data; 7851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 7871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 7881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortTxDisable(ch->port); 7891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags |= TXSTOPPED; 7901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_start(struct tty_struct *tty) 7941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct moxa_str *ch = (struct moxa_str *) tty->driver_data; 7961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 7981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 7991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(ch->statusflags & TXSTOPPED)) 8011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 8021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortTxEnable(ch->port); 8041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags &= ~TXSTOPPED; 8051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_hangup(struct tty_struct *tty) 8081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct moxa_str *ch = (struct moxa_str *) tty->driver_data; 8101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxa_flush_buffer(tty); 8121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds shut_down(ch); 8131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->event = 0; 8141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->count = 0; 8151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags &= ~ASYNC_NORMAL_ACTIVE; 8161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->tty = NULL; 8171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wake_up_interruptible(&ch->open_wait); 8181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_poll(unsigned long ignored) 8211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds register int card; 8231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct moxa_str *ch; 8241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct tty_struct *tp; 8251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, ports; 8261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds del_timer(&moxaTimer); 8281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (MoxaDriverPoll() < 0) { 830aa7e5221fb47badbea618cc62704d6e4a4bcce15Jiri Slaby mod_timer(&moxaTimer, jiffies + HZ / 50); 8311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 8321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (card = 0; card < MAX_BOARDS; card++) { 8341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((ports = MoxaPortsOfCard(card)) <= 0) 8351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 8361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch = &moxaChannels[card * MAX_PORTS_PER_BOARD]; 8371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < ports; i++, ch++) { 8381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((ch->asyncflags & ASYNC_INITIALIZED) == 0) 8391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 8401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(ch->statusflags & THROTTLE) && 8411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (MoxaPortRxQueue(ch->port) > 0)) 8421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds receive_data(ch); 8431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((tp = ch->tty) == 0) 8441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 8451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->statusflags & LOWWAIT) { 8461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (MoxaPortTxQueue(ch->port) <= WAKEUP_CHARS) { 8471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!tp->stopped) { 8481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags &= ~LOWWAIT; 8491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_wakeup(tp); 8501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!I_IGNBRK(tp) && (MoxaPortResetBrkCnt(ch->port) > 0)) { 8541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_insert_flip_char(tp, 0, TTY_BREAK); 8551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_schedule_flip(tp); 8561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (MoxaPortDCDChange(ch->port)) { 8581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->asyncflags & ASYNC_CHECK_CD) { 8591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (MoxaPortDCDON(ch->port)) 8601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wake_up_interruptible(&ch->open_wait); 8611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else { 862ba196df3d6432c5c20429e8e447c5db7abedb8f3Jiri Slaby tty_hangup(tp); 863ba196df3d6432c5c20429e8e447c5db7abedb8f3Jiri Slaby wake_up_interruptible(&ch->open_wait); 864ba196df3d6432c5c20429e8e447c5db7abedb8f3Jiri Slaby ch->asyncflags &= ~ASYNC_NORMAL_ACTIVE; 8651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 871aa7e5221fb47badbea618cc62704d6e4a4bcce15Jiri Slaby mod_timer(&moxaTimer, jiffies + HZ / 50); 8721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/******************************************************************************/ 8751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void set_tty_param(struct tty_struct *tty) 8771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 878606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Cox register struct ktermios *ts; 8791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct moxa_str *ch; 8801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int rts, cts, txflow, rxflow, xany; 8811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch = (struct moxa_str *) tty->driver_data; 8831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ts = tty->termios; 8841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ts->c_cflag & CLOCAL) 8851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags &= ~ASYNC_CHECK_CD; 8861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 8871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags |= ASYNC_CHECK_CD; 8881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rts = cts = txflow = rxflow = xany = 0; 8891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ts->c_cflag & CRTSCTS) 8901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rts = cts = 1; 8911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ts->c_iflag & IXON) 8921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds txflow = 1; 8931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ts->c_iflag & IXOFF) 8941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rxflow = 1; 8951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ts->c_iflag & IXANY) 8961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds xany = 1; 8971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortFlowCtrl(ch->port, rts, cts, txflow, rxflow, xany); 898c7bce3097c0f9bbed76ee6fd03742f2624031a45Alan Cox MoxaPortSetTermio(ch->port, ts, tty_get_baud_rate(tty)); 8991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int block_till_ready(struct tty_struct *tty, struct file *filp, 9021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct moxa_str *ch) 9031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds DECLARE_WAITQUEUE(wait,current); 9051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 9061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int retval; 9071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int do_clocal = C_CLOCAL(tty); 9081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 9101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * If the device is in the middle of being closed, then block 9111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * until it's done, and then try again. 9121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tty_hung_up_p(filp) || (ch->asyncflags & ASYNC_CLOSING)) { 9141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->asyncflags & ASYNC_CLOSING) 9151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds interruptible_sleep_on(&ch->close_wait); 9161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef SERIAL_DO_RESTART 9171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->asyncflags & ASYNC_HUP_NOTIFY) 9181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-EAGAIN); 9191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 9201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-ERESTARTSYS); 9211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 9221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-EAGAIN); 9231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 9241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 9261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * If non-blocking mode is set, then make the check up front 9271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and then exit. 9281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (filp->f_flags & O_NONBLOCK) { 9301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags |= ASYNC_NORMAL_ACTIVE; 9311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 9321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 9341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Block waiting for the carrier detect and the line to become free 9351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retval = 0; 9371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds add_wait_queue(&ch->open_wait, &wait); 9381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef SERIAL_DEBUG_OPEN 9391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("block_til_ready before block: ttys%d, count = %d\n", 9401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->line, ch->count); 9411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 94233f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_lock_irqsave(&moxa_lock, flags); 9431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!tty_hung_up_p(filp)) 9441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->count--; 9451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->blocked_open++; 94633f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_unlock_irqrestore(&moxa_lock, flags); 94733f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox 9481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (1) { 9491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_current_state(TASK_INTERRUPTIBLE); 9501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tty_hung_up_p(filp) || 9511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds !(ch->asyncflags & ASYNC_INITIALIZED)) { 9521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef SERIAL_DO_RESTART 9531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->asyncflags & ASYNC_HUP_NOTIFY) 9541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retval = -EAGAIN; 9551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 9561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retval = -ERESTARTSYS; 9571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 9581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retval = -EAGAIN; 9591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 9601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(ch->asyncflags & ASYNC_CLOSING) && (do_clocal || 9631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortDCDON(ch->port))) 9641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (signal_pending(current)) { 9671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retval = -ERESTARTSYS; 9681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds schedule(); 9711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_current_state(TASK_RUNNING); 9731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds remove_wait_queue(&ch->open_wait, &wait); 97433f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox 97533f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_lock_irqsave(&moxa_lock, flags); 9761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!tty_hung_up_p(filp)) 9771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->count++; 9781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->blocked_open--; 97933f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_unlock_irqrestore(&moxa_lock, flags); 9801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef SERIAL_DEBUG_OPEN 9811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("block_til_ready after blocking: ttys%d, count = %d\n", 9821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->line, ch->count); 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 9841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) 9851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (retval); 98633f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox /* FIXME: review to see if we need to use set_bit on these */ 9871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags |= ASYNC_NORMAL_ACTIVE; 98833f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox return 0; 9891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void setup_empty_event(struct tty_struct *tty) 9921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct moxa_str *ch = tty->driver_data; 9941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 9951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 99633f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_lock_irqsave(&moxa_lock, flags); 9971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags |= EMPTYWAIT; 998aa7e5221fb47badbea618cc62704d6e4a4bcce15Jiri Slaby mod_timer(&moxaEmptyTimer[ch->port], jiffies + HZ); 99933f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_unlock_irqrestore(&moxa_lock, flags); 10001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void check_xmit_empty(unsigned long data) 10031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct moxa_str *ch; 10051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch = (struct moxa_str *) data; 10071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds del_timer(&moxaEmptyTimer[ch->port]); 10081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->tty && (ch->statusflags & EMPTYWAIT)) { 10091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (MoxaPortTxQueue(ch->port) == 0) { 10101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags &= ~EMPTYWAIT; 10111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_wakeup(ch->tty); 10121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 10131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1014aa7e5221fb47badbea618cc62704d6e4a4bcce15Jiri Slaby mod_timer(&moxaEmptyTimer[ch->port], jiffies + HZ); 10151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 10161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags &= ~EMPTYWAIT; 10171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void shut_down(struct moxa_str *ch) 10201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct tty_struct *tp; 10221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(ch->asyncflags & ASYNC_INITIALIZED)) 10241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 10251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tp = ch->tty; 10271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortDisable(ch->port); 10291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 10311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * If we're a modem control device and HUPCL is on, drop RTS & DTR. 10321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tp->termios->c_cflag & HUPCL) 10341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortLineCtrl(ch->port, 0, 0); 10351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags &= ~ASYNC_INITIALIZED; 10371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void receive_data(struct moxa_str *ch) 10401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct tty_struct *tp; 1042606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Cox struct ktermios *ts; 10431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 10441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ts = NULL; 10461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tp = ch->tty; 10471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tp) 10481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ts = tp->termios; 10491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /************************************************** 10501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ( !tp || !ts || !(ts->c_cflag & CREAD) ) { 10511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *****************************************************/ 10521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!tp || !ts) { 10531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortFlushData(ch->port, 0); 10541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 10551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 105633f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_lock_irqsave(&moxa_lock, flags); 105733f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox MoxaPortReadData(ch->port, tp); 105833f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_unlock_irqrestore(&moxa_lock, flags); 105933f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox tty_schedule_flip(tp); 10601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Magic_code 0x404 10631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 10651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * System Configuration 10661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 10681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for C218 BIOS initialization 10691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218_ConfBase 0x800 10711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218_status (C218_ConfBase + 0) /* BIOS running status */ 10721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218_diag (C218_ConfBase + 2) /* diagnostic status */ 10731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218_key (C218_ConfBase + 4) /* WORD (0x218 for C218) */ 10741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218DLoad_len (C218_ConfBase + 6) /* WORD */ 10751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218check_sum (C218_ConfBase + 8) /* BYTE */ 10761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218chksum_ok (C218_ConfBase + 0x0a) /* BYTE (1:ok) */ 10771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218_TestRx (C218_ConfBase + 0x10) /* 8 bytes for 8 ports */ 10781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218_TestTx (C218_ConfBase + 0x18) /* 8 bytes for 8 ports */ 10791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218_RXerr (C218_ConfBase + 0x20) /* 8 bytes for 8 ports */ 10801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218_ErrFlag (C218_ConfBase + 0x28) /* 8 bytes for 8 ports */ 10811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218_LoadBuf 0x0F00 10831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218_KeyCode 0x218 10841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CP204J_KeyCode 0x204 10851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 10871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for C320 BIOS initialization 10881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320_ConfBase 0x800 10901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320_LoadBuf 0x0f00 10911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define STS_init 0x05 /* for C320_status */ 10921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320_status C320_ConfBase + 0 /* BIOS running status */ 10941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320_diag C320_ConfBase + 2 /* diagnostic status */ 10951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320_key C320_ConfBase + 4 /* WORD (0320H for C320) */ 10961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320DLoad_len C320_ConfBase + 6 /* WORD */ 10971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320check_sum C320_ConfBase + 8 /* WORD */ 10981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320chksum_ok C320_ConfBase + 0x0a /* WORD (1:ok) */ 10991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320bapi_len C320_ConfBase + 0x0c /* WORD */ 11001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320UART_no C320_ConfBase + 0x0e /* WORD */ 11011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320_KeyCode 0x320 11031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FixPage_addr 0x0000 /* starting addr of static page */ 11051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DynPage_addr 0x2000 /* starting addr of dynamic page */ 11061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218_start 0x3000 /* starting addr of C218 BIOS prg */ 11071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Control_reg 0x1ff0 /* select page and reset control */ 11081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define HW_reset 0x80 11091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 11111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function Codes 11121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_CardReset 0x80 11141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_ChannelReset 1 /* C320 firmware not supported */ 11151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_EnableCH 2 11161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_DisableCH 3 11171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SetParam 4 11181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SetMode 5 11191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SetRate 6 11201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_LineControl 7 11211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_LineStatus 8 11221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_XmitControl 9 11231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_FlushQueue 10 11241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SendBreak 11 11251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_StopBreak 12 11261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_LoopbackON 13 11271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_LoopbackOFF 14 11281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_ClrIrqTable 15 11291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SendXon 16 11301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SetTermIrq 17 /* C320 firmware not supported */ 11311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SetCntIrq 18 /* C320 firmware not supported */ 11321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SetBreakIrq 19 11331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SetLineIrq 20 11341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SetFlowCtl 21 11351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_GenIrq 22 11361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_InCD180 23 11371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_OutCD180 24 11381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_InUARTreg 23 11391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_OutUARTreg 24 11401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SetXonXoff 25 11411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_OutCD180CCR 26 11421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_ExtIQueue 27 11431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_ExtOQueue 28 11441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_ClrLineIrq 29 11451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_HWFlowCtl 30 11461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_GetClockRate 35 11471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SetBaud 36 11481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SetDataMode 41 11491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_GetCCSR 43 11501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_GetDataError 45 11511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_RxControl 50 11521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_ImmSend 51 11531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SetXonState 52 11541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SetXoffState 53 11551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SetRxFIFOTrig 54 11561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SetTxFIFOCnt 55 11571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_UnixRate 56 11581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_UnixResetTimer 57 11591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RxFIFOTrig1 0 11611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RxFIFOTrig4 1 11621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RxFIFOTrig8 2 11631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RxFIFOTrig14 3 11641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 11661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Dual-Ported RAM 11671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DRAM_global 0 11691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define INT_data (DRAM_global + 0) 11701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Config_base (DRAM_global + 0x108) 11711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IRQindex (INT_data + 0) 11731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IRQpending (INT_data + 4) 11741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IRQtable (INT_data + 8) 11751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 11771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Interrupt Status 11781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IntrRx 0x01 /* receiver data O.K. */ 11801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IntrTx 0x02 /* transmit buffer empty */ 11811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IntrFunc 0x04 /* function complete */ 11821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IntrBreak 0x08 /* received break */ 11831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IntrLine 0x10 /* line status change 11841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for transmitter */ 11851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IntrIntr 0x20 /* received INTR code */ 11861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IntrQuit 0x40 /* received QUIT code */ 11871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IntrEOF 0x80 /* received EOF code */ 11881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IntrRxTrigger 0x100 /* rx data count reach tigger value */ 11901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IntrTxTrigger 0x200 /* tx data count below trigger value */ 11911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Magic_no (Config_base + 0) 11931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Card_model_no (Config_base + 2) 11941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Total_ports (Config_base + 4) 11951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Module_cnt (Config_base + 8) 11961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Module_no (Config_base + 10) 11971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Timer_10ms (Config_base + 14) 11981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Disable_IRQ (Config_base + 20) 11991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TMS320_PORT1 (Config_base + 22) 12001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TMS320_PORT2 (Config_base + 24) 12011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TMS320_CLOCK (Config_base + 26) 12021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 12041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * DATA BUFFER in DRAM 12051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 12061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Extern_table 0x400 /* Base address of the external table 12071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (24 words * 64) total 3K bytes 12081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (24 words * 128) total 6K bytes */ 12091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Extern_size 0x60 /* 96 bytes */ 12101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RXrptr 0x00 /* read pointer for RX buffer */ 12111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RXwptr 0x02 /* write pointer for RX buffer */ 12121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXrptr 0x04 /* read pointer for TX buffer */ 12131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXwptr 0x06 /* write pointer for TX buffer */ 12141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define HostStat 0x08 /* IRQ flag and general flag */ 12151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FlagStat 0x0A 12161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FlowControl 0x0C /* B7 B6 B5 B4 B3 B2 B1 B0 */ 12171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* x x x x | | | | */ 12181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* | | | + CTS flow */ 12191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* | | +--- RTS flow */ 12201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* | +------ TX Xon/Xoff */ 12211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* +--------- RX Xon/Xoff */ 12221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Break_cnt 0x0E /* received break count */ 12231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CD180TXirq 0x10 /* if non-0: enable TX irq */ 12241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RX_mask 0x12 12251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TX_mask 0x14 12261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Ofs_rxb 0x16 12271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Ofs_txb 0x18 12281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Page_rxb 0x1A 12291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Page_txb 0x1C 12301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define EndPage_rxb 0x1E 12311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define EndPage_txb 0x20 12321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Data_error 0x22 12331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RxTrigger 0x28 12341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TxTrigger 0x2a 12351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define rRXwptr 0x34 12371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Low_water 0x36 12381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FuncCode 0x40 12401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FuncArg 0x42 12411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FuncArg1 0x44 12421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218rx_size 0x2000 /* 8K bytes */ 12441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218tx_size 0x8000 /* 32K bytes */ 12451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218rx_mask (C218rx_size - 1) 12471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218tx_mask (C218tx_size - 1) 12481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p8rx_size 0x2000 12501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p8tx_size 0x8000 12511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p8rx_mask (C320p8rx_size - 1) 12521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p8tx_mask (C320p8tx_size - 1) 12531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p16rx_size 0x2000 12551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p16tx_size 0x4000 12561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p16rx_mask (C320p16rx_size - 1) 12571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p16tx_mask (C320p16tx_size - 1) 12581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p24rx_size 0x2000 12601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p24tx_size 0x2000 12611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p24rx_mask (C320p24rx_size - 1) 12621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p24tx_mask (C320p24tx_size - 1) 12631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p32rx_size 0x1000 12651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p32tx_size 0x1000 12661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p32rx_mask (C320p32rx_size - 1) 12671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p32tx_mask (C320p32tx_size - 1) 12681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Page_size 0x2000 12701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Page_mask (Page_size - 1) 12711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218rx_spage 3 12721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218tx_spage 4 12731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218rx_pageno 1 12741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218tx_pageno 4 12751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218buf_pageno 5 12761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p8rx_spage 3 12781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p8tx_spage 4 12791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p8rx_pgno 1 12801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p8tx_pgno 4 12811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p8buf_pgno 5 12821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p16rx_spage 3 12841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p16tx_spage 4 12851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p16rx_pgno 1 12861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p16tx_pgno 2 12871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p16buf_pgno 3 12881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p24rx_spage 3 12901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p24tx_spage 4 12911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p24rx_pgno 1 12921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p24tx_pgno 1 12931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p24buf_pgno 2 12941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p32rx_spage 3 12961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p32tx_ofs C320p32rx_size 12971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p32tx_spage 3 12981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p32buf_pgno 1 12991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 13011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Host Status 13021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define WakeupRx 0x01 13041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define WakeupTx 0x02 13051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define WakeupBreak 0x08 13061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define WakeupLine 0x10 13071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define WakeupIntr 0x20 13081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define WakeupQuit 0x40 13091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define WakeupEOF 0x80 /* used in VTIME control */ 13101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define WakeupRxTrigger 0x100 13111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define WakeupTxTrigger 0x200 13121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 13131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Flag status 13141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Rx_over 0x01 13161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Xoff_state 0x02 13171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Tx_flowOff 0x04 13181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Tx_enable 0x08 13191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CTS_state 0x10 13201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DSR_state 0x20 13211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DCD_state 0x80 13221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 13231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FlowControl 13241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CTS_FlowCtl 1 13261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RTS_FlowCtl 2 13271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Tx_FlowCtl 4 13281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Rx_FlowCtl 8 13291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IXM_IXANY 0x10 13301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LowWater 128 13321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DTR_ON 1 13341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RTS_ON 2 13351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CTS_ON 1 13361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DSR_ON 2 13371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DCD_ON 8 13381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* mode definition */ 13401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MX_CS8 0x03 13411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MX_CS7 0x02 13421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MX_CS6 0x01 13431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MX_CS5 0x00 13441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MX_STOP1 0x00 13461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MX_STOP15 0x04 13471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MX_STOP2 0x08 13481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MX_PARNONE 0x00 13501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MX_PAREVEN 0x40 13511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MX_PARODD 0xC0 13521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 13541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Query 13551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct mon_str { 13581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int tick; 13591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int rxcnt[MAX_PORTS]; 13601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int txcnt[MAX_PORTS]; 13611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 13621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DCD_changed 0x01 13641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DCD_oldstate 0x80 13651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic unsigned char moxaBuff[10240]; 13671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __iomem *moxaIntNdx[MAX_BOARDS]; 13681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __iomem *moxaIntPend[MAX_BOARDS]; 13691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __iomem *moxaIntTable[MAX_BOARDS]; 13701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic char moxaChkPort[MAX_PORTS]; 13711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic char moxaLineCtrl[MAX_PORTS]; 13721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __iomem *moxaTableAddr[MAX_PORTS]; 13731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic long moxaCurBaud[MAX_PORTS]; 13741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic char moxaDCDState[MAX_PORTS]; 13751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic char moxaLowChkFlag[MAX_PORTS]; 13761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxaLowWaterChk; 13771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxaCard; 13789dff89cd82af7bccc706fed288b1c33a51c3b937Jiri Slabystatic struct mon_str moxaLog; 13799fa372a850b9ffcb177eb9ac0b75963b2f9af233Jiri Slabystatic int moxaFuncTout = HZ / 2; 13801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ushort moxaBreakCnt[MAX_PORTS]; 13811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxadelay(int); 13831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxafunc(void __iomem *, int, ushort); 13841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void wait_finish(void __iomem *); 13851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void low_water_check(void __iomem *); 13861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxaloadbios(int, unsigned char __user *, int); 13871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxafindcard(int); 13881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxaload320b(int, unsigned char __user *, int); 13891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxaloadcode(int, unsigned char __user *, int); 13901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxaloadc218(int, void __iomem *, int); 13911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxaloadc320(int, void __iomem *, int, int *); 13921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/***************************************************************************** 13941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Driver level functions: * 13951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1. MoxaDriverInit(void); * 13961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2. MoxaDriverIoctl(unsigned int cmd, unsigned long arg, int port); * 13971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3. MoxaDriverPoll(void); * 13981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *****************************************************************************/ 13991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid MoxaDriverInit(void) 14001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 14011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 14021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaFuncTout = HZ / 2; /* 500 mini-seconds */ 14041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaCard = 0; 14051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaLog.tick = 0; 14061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaLowWaterChk = 0; 14071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < MAX_PORTS; i++) { 14081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaChkPort[i] = 0; 14091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaLowChkFlag[i] = 0; 14101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaLineCtrl[i] = 0; 14111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaLog.rxcnt[i] = 0; 14121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaLog.txcnt[i] = 0; 14131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA 0x400 14171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_GET_IQUEUE (MOXA + 1) /* get input buffered count */ 14181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_GET_OQUEUE (MOXA + 2) /* get output buffered count */ 14191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_INIT_DRIVER (MOXA + 6) /* moxaCard=0 */ 14201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_LOAD_BIOS (MOXA + 9) /* download BIOS */ 14211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_FIND_BOARD (MOXA + 10) /* Check if MOXA card exist? */ 14221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_LOAD_C320B (MOXA + 11) /* download 320B firmware */ 14231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_LOAD_CODE (MOXA + 12) /* download firmware */ 14241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_GETDATACOUNT (MOXA + 23) 14251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_GET_IOQUEUE (MOXA + 27) 14261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_FLUSH_QUEUE (MOXA + 28) 14271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_GET_CONF (MOXA + 35) /* configuration */ 14281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_GET_MAJOR (MOXA + 63) 14291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_GET_CUMAJOR (MOXA + 64) 14301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_GETMSTATUS (MOXA + 65) 14311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct moxaq_str { 14341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int inq; 14351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int outq; 14361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 14371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct dl_str { 14391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char __user *buf; 14401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int len; 14411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int cardno; 14421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 14431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct moxaq_str temp_queue[MAX_PORTS]; 14451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct dl_str dltmp; 14461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid MoxaPortFlushData(int port, int mode) 14481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 14491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 14501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((mode < 0) || (mode > 2)) 14511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 14521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofsAddr = moxaTableAddr[port]; 14531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_FlushQueue, mode); 14541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (mode != 1) { 14551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaLowChkFlag[port] = 0; 14561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds low_water_check(ofsAddr); 14571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint MoxaDriverIoctl(unsigned int cmd, unsigned long arg, int port) 14611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 14621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 14631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int status; 14641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int MoxaPortTxQueue(int), MoxaPortRxQueue(int); 14651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __user *argp = (void __user *)arg; 14661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 146711324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby if (port == MAX_PORTS) { 14681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((cmd != MOXA_GET_CONF) && (cmd != MOXA_INIT_DRIVER) && 14691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (cmd != MOXA_LOAD_BIOS) && (cmd != MOXA_FIND_BOARD) && (cmd != MOXA_LOAD_C320B) && 14701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (cmd != MOXA_LOAD_CODE) && (cmd != MOXA_GETDATACOUNT) && 14711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (cmd != MOXA_GET_IOQUEUE) && (cmd != MOXA_GET_MAJOR) && 14721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (cmd != MOXA_GET_CUMAJOR) && (cmd != MOXA_GETMSTATUS)) 14731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-EINVAL); 14741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (cmd) { 14761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_GET_CONF: 14779dff89cd82af7bccc706fed288b1c33a51c3b937Jiri Slaby if(copy_to_user(argp, &moxa_boards, MAX_BOARDS * 14789dff89cd82af7bccc706fed288b1c33a51c3b937Jiri Slaby sizeof(struct moxa_board_conf))) 14791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 14801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 14811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_INIT_DRIVER: 14821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((int) arg == 0x404) 14831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaDriverInit(); 14841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 14851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_GETDATACOUNT: 14861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaLog.tick = jiffies; 14879dff89cd82af7bccc706fed288b1c33a51c3b937Jiri Slaby if(copy_to_user(argp, &moxaLog, sizeof(struct mon_str))) 14881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 14891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 14901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_FLUSH_QUEUE: 14911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortFlushData(port, arg); 14921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 14931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_GET_IOQUEUE: 14941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < MAX_PORTS; i++) { 14951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (moxaChkPort[i]) { 14961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_queue[i].inq = MoxaPortRxQueue(i); 14971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds temp_queue[i].outq = MoxaPortTxQueue(i); 14981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(copy_to_user(argp, temp_queue, sizeof(struct moxaq_str) * MAX_PORTS)) 15011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 15021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 15031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_GET_OQUEUE: 15041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = MoxaPortTxQueue(port); 15051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return put_user(i, (unsigned long __user *)argp); 15061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_GET_IQUEUE: 15071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = MoxaPortRxQueue(port); 15081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return put_user(i, (unsigned long __user *)argp); 15091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_GET_MAJOR: 15101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(copy_to_user(argp, &ttymajor, sizeof(int))) 15111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 15121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 15131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_GET_CUMAJOR: 15141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = 0; 15151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(copy_to_user(argp, &i, sizeof(int))) 15161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 15171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 15181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_GETMSTATUS: 15191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < MAX_PORTS; i++) { 15201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds GMStatus[i].ri = 0; 15211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds GMStatus[i].dcd = 0; 15221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds GMStatus[i].dsr = 0; 15231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds GMStatus[i].cts = 0; 15241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!moxaChkPort[i]) { 15251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 15261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 15271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds status = MoxaPortLineStatus(moxaChannels[i].port); 15281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (status & 1) 15291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds GMStatus[i].cts = 1; 15301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (status & 2) 15311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds GMStatus[i].dsr = 1; 15321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (status & 4) 15331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds GMStatus[i].dcd = 1; 15341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!moxaChannels[i].tty || !moxaChannels[i].tty->termios) 15371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds GMStatus[i].cflag = moxaChannels[i].cflag; 15381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 15391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds GMStatus[i].cflag = moxaChannels[i].tty->termios->c_cflag; 15401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(copy_to_user(argp, GMStatus, sizeof(struct mxser_mstatus) * MAX_PORTS)) 15421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 15431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 15441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 15451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-ENOIOCTLCMD); 15461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_LOAD_BIOS: 15471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_FIND_BOARD: 15481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_LOAD_C320B: 15491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_LOAD_CODE: 155049cd619c69d643b30a24029e40eb5364c7a26b2eAlan Cox if (!capable(CAP_SYS_RAWIO)) 155149cd619c69d643b30a24029e40eb5364c7a26b2eAlan Cox return -EPERM; 15521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(copy_from_user(&dltmp, argp, sizeof(struct dl_str))) 15561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 15571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(dltmp.cardno < 0 || dltmp.cardno >= MAX_BOARDS) 15581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 15591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch(cmd) 15611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 15621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_LOAD_BIOS: 15631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = moxaloadbios(dltmp.cardno, dltmp.buf, dltmp.len); 15641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (i); 15651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_FIND_BOARD: 15661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return moxafindcard(dltmp.cardno); 15671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_LOAD_C320B: 15681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaload320b(dltmp.cardno, dltmp.buf, dltmp.len); 15691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: /* to keep gcc happy */ 15701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 15711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_LOAD_CODE: 15721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = moxaloadcode(dltmp.cardno, dltmp.buf, dltmp.len); 15731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i == -1) 15741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-EFAULT); 15751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (i); 15761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint MoxaDriverPoll(void) 15811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 15821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds register ushort temp; 15831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds register int card; 15841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 15851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ip; 15861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int port, p, ports; 15871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (moxaCard == 0) 15891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-1); 15901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (card = 0; card < MAX_BOARDS; card++) { 159101cfaf0d12ae5fa092cc916ca4066ee1598e857dDirk Eibach if (loadstat[card] == 0) 159201cfaf0d12ae5fa092cc916ca4066ee1598e857dDirk Eibach continue; 15931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((ports = moxa_boards[card].numPorts) == 0) 15941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 15951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readb(moxaIntPend[card]) == 0xff) { 15961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ip = moxaIntTable[card] + readb(moxaIntNdx[card]); 15971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p = card * MAX_PORTS_PER_BOARD; 15981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ports <<= 1; 15991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (port = 0; port < ports; port += 2, p++) { 16001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((temp = readw(ip + port)) != 0) { 16011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0, ip + port); 16021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofsAddr = moxaTableAddr[p]; 16031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (temp & IntrTx) 16041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(readw(ofsAddr + HostStat) & ~WakeupTx, ofsAddr + HostStat); 16051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (temp & IntrBreak) { 16061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaBreakCnt[p]++; 16071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (temp & IntrLine) { 16091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readb(ofsAddr + FlagStat) & DCD_state) { 16101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((moxaDCDState[p] & DCD_oldstate) == 0) 16111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDCDState[p] = (DCD_oldstate | 16121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds DCD_changed); 16131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 16141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (moxaDCDState[p] & DCD_oldstate) 16151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDCDState[p] = DCD_changed; 16161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(0, moxaIntPend[card]); 16211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (moxaLowWaterChk) { 16231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p = card * MAX_PORTS_PER_BOARD; 16241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (port = 0; port < ports; port++, p++) { 16251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (moxaLowChkFlag[p]) { 16261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaLowChkFlag[p] = 0; 16271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofsAddr = moxaTableAddr[p]; 16281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds low_water_check(ofsAddr); 16291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaLowWaterChk = 0; 16341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 16351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/***************************************************************************** 16381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Card level function: * 16391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1. MoxaPortsOfCard(int cardno); * 16401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *****************************************************************************/ 16411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint MoxaPortsOfCard(int cardno) 16421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 16431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (moxa_boards[cardno].boardType == 0) 16451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 16461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (moxa_boards[cardno].numPorts); 16471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/***************************************************************************** 16501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Port level functions: * 16511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1. MoxaPortIsValid(int port); * 16521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2. MoxaPortEnable(int port); * 16531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3. MoxaPortDisable(int port); * 16541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4. MoxaPortGetMaxBaud(int port); * 16551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 6. MoxaPortSetBaud(int port, long baud); * 16561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 8. MoxaPortSetTermio(int port, unsigned char *termio); * 16571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 9. MoxaPortGetLineOut(int port, int *dtrState, int *rtsState); * 16581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 10. MoxaPortLineCtrl(int port, int dtrState, int rtsState); * 16591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 11. MoxaPortFlowCtrl(int port, int rts, int cts, int rx, int tx,int xany); * 16601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 12. MoxaPortLineStatus(int port); * 16611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 13. MoxaPortDCDChange(int port); * 16621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 14. MoxaPortDCDON(int port); * 16631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15. MoxaPortFlushData(int port, int mode); * 16641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16. MoxaPortWriteData(int port, unsigned char * buffer, int length); * 166533f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox * 17. MoxaPortReadData(int port, struct tty_struct *tty); * 16661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 20. MoxaPortTxQueue(int port); * 16671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 21. MoxaPortTxFree(int port); * 16681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 22. MoxaPortRxQueue(int port); * 16691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 24. MoxaPortTxDisable(int port); * 16701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 25. MoxaPortTxEnable(int port); * 16711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 27. MoxaPortResetBrkCnt(int port); * 16721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 30. MoxaPortSendBreak(int port, int ticks); * 16731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *****************************************************************************/ 16741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 16751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Moxa Port Number Description: 16761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * MOXA serial driver supports up to 4 MOXA-C218/C320 boards. And, 16781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the port number using in MOXA driver functions will be 0 to 31 for 16791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * first MOXA board, 32 to 63 for second, 64 to 95 for third and 96 16801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to 127 for fourth. For example, if you setup three MOXA boards, 16811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * first board is C218, second board is C320-16 and third board is 16821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * C320-32. The port number of first board (C218 - 8 ports) is from 16831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 to 7. The port number of second board (C320 - 16 ports) is form 16841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 32 to 47. The port number of third board (C320 - 32 ports) is from 16851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 64 to 95. And those port numbers form 8 to 31, 48 to 63 and 96 to 16861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 127 will be invalid. 16871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Moxa Functions Description: 16901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 1: Driver initialization routine, this routine must be 16921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * called when initialized driver. 16931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 16941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaDriverInit(); 16951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 2: Moxa driver private IOCTL command processing. 16981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 16991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaDriverIoctl(unsigned int cmd, unsigned long arg, int port); 17001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * unsigned int cmd : IOCTL command 17021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * unsigned long arg : IOCTL argument 17031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 17041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 (OK) 17061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * -EINVAL 17071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * -ENOIOCTLCMD 17081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 3: Moxa driver polling process routine. 17111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 17121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaDriverPoll(void); 17131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 ; polling O.K. 17151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * -1 : no any Moxa card. 17161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 4: Get the ports of this card. 17191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 17201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortsOfCard(int cardno); 17211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int cardno : card number (0 - 3) 17231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 : this card is invalid 17251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 8/16/24/32 17261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 5: Check this port is valid or invalid 17291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 17301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortIsValid(int port); 17311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127, ref port description) 17321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 : this port is invalid 17341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1 : this port is valid 17351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 6: Enable this port to start Tx/Rx data. 17381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 17391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortEnable(int port); 17401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 17411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 7: Disable this port 17441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 17451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortDisable(int port); 17461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 17471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 8: Get the maximun available baud rate of this port. 17501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 17511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * long MoxaPortGetMaxBaud(int port); 17521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 17531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 : this port is invalid 17551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 38400/57600/115200 bps 17561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 10: Setting baud rate of this port. 17591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 17601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * long MoxaPortSetBaud(int port, long baud); 17611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 17621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * long baud : baud rate (50 - 115200) 17631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 : this port is invalid or baud < 50 17651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 50 - 115200 : the real baud rate set to the port, if 17661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the argument baud is large than maximun 17671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * available baud rate, the real setting 17681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * baud rate will be the maximun baud rate. 17691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 12: Configure the port. 17721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 1773606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Cox * int MoxaPortSetTermio(int port, struct ktermios *termio, speed_t baud); 17741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 1775606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Cox * struct ktermios * termio : termio structure pointer 1776c7bce3097c0f9bbed76ee6fd03742f2624031a45Alan Cox * speed_t baud : baud rate 17771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: -1 : this port is invalid or termio == NULL 17791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 : setting O.K. 17801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 13: Get the DTR/RTS state of this port. 17831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 17841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortGetLineOut(int port, int *dtrState, int *rtsState); 17851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 17861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int * dtrState : pointer to INT to receive the current DTR 17871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * state. (if NULL, this function will not 17881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * write to this address) 17891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int * rtsState : pointer to INT to receive the current RTS 17901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * state. (if NULL, this function will not 17911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * write to this address) 17921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: -1 : this port is invalid 17941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 : O.K. 17951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 14: Setting the DTR/RTS output state of this port. 17981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 17991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortLineCtrl(int port, int dtrState, int rtsState); 18001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 18011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int dtrState : DTR output state (0: off, 1: on) 18021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int rtsState : RTS output state (0: off, 1: on) 18031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 15: Setting the flow control of this port. 18061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 18071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortFlowCtrl(int port, int rtsFlow, int ctsFlow, int rxFlow, 18081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int txFlow,int xany); 18091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 18101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int rtsFlow : H/W RTS flow control (0: no, 1: yes) 18111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int ctsFlow : H/W CTS flow control (0: no, 1: yes) 18121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int rxFlow : S/W Rx XON/XOFF flow control (0: no, 1: yes) 18131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int txFlow : S/W Tx XON/XOFF flow control (0: no, 1: yes) 18141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int xany : S/W XANY flow control (0: no, 1: yes) 18151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 16: Get ths line status of this port 18181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 18191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortLineStatus(int port); 18201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 18211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: Bit 0 - CTS state (0: off, 1: on) 18231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Bit 1 - DSR state (0: off, 1: on) 18241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Bit 2 - DCD state (0: off, 1: on) 18251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 17: Check the DCD state has changed since the last read 18281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of this function. 18291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 18301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortDCDChange(int port); 18311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 18321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 : no changed 18341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1 : DCD has changed 18351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 18: Check ths current DCD state is ON or not. 18381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 18391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortDCDON(int port); 18401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 18411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 : DCD off 18431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1 : DCD on 18441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 19: Flush the Rx/Tx buffer data of this port. 18471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 18481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortFlushData(int port, int mode); 18491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 18501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int mode 18511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 : flush the Rx buffer 18521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1 : flush the Tx buffer 18531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2 : flush the Rx and Tx buffer 18541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 20: Write data. 18571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 18581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortWriteData(int port, unsigned char * buffer, int length); 18591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 18601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * unsigned char * buffer : pointer to write data buffer. 18611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int length : write data length 18621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 - length : real write data length 18641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 21: Read data. 18671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 186833f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox * int MoxaPortReadData(int port, struct tty_struct *tty); 18691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 187033f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox * struct tty_struct *tty : tty for data 18711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 - length : real read data length 18731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 24: Get the Tx buffer current queued data bytes 18761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 18771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortTxQueue(int port); 18781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 18791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: .. : Tx buffer current queued data bytes 18811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 25: Get the Tx buffer current free space 18841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 18851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortTxFree(int port); 18861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 18871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: .. : Tx buffer current free space 18891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 26: Get the Rx buffer current queued data bytes 18921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 18931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortRxQueue(int port); 18941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 18951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: .. : Rx buffer current queued data bytes 18971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 28: Disable port data transmission. 19001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 19011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortTxDisable(int port); 19021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 19031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 29: Enable port data transmission. 19061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 19071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortTxEnable(int port); 19081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 19091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 31: Get the received BREAK signal count and reset it. 19121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 19131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortResetBrkCnt(int port); 19141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 19151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 - .. : BREAK signal count 19171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 34: Send out a BREAK signal. 19201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 19211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortSendBreak(int port, int ms100); 19221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 19231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int ms100 : break signal time interval. 19241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * unit: 100 mini-second. if ms100 == 0, it will 19251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * send out a about 250 ms BREAK signal. 19261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 19281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint MoxaPortIsValid(int port) 19291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (moxaCard == 0) 19321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 19331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (moxaChkPort[port] == 0) 19341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 19351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (1); 19361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid MoxaPortEnable(int port) 19391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 19411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int MoxaPortLineStatus(int); 19421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds short lowwater = 512; 19431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofsAddr = moxaTableAddr[port]; 19451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(lowwater, ofsAddr + Low_water); 19461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaBreakCnt[port] = 0; 19471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_ISA) || 19481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_PCI)) { 19491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetBreakIrq, 0); 19501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 19511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(readw(ofsAddr + HostStat) | WakeupBreak, ofsAddr + HostStat); 19521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetLineIrq, Magic_code); 19551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_FlushQueue, 2); 19561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_EnableCH, Magic_code); 19581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortLineStatus(port); 19591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid MoxaPortDisable(int port) 19621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr = moxaTableAddr[port]; 19641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetFlowCtl, 0); /* disable flow control */ 19661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_ClrLineIrq, Magic_code); 19671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0, ofsAddr + HostStat); 19681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_DisableCH, Magic_code); 19691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldslong MoxaPortGetMaxBaud(int port) 19721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_ISA) || 19741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_PCI)) 19751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (460800L); 19761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 19771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (921600L); 19781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldslong MoxaPortSetBaud(int port, long baud) 19821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 19841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds long max, clock; 19851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int val; 19861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((baud < 50L) || ((max = MoxaPortGetMaxBaud(port)) == 0)) 19881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 19891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofsAddr = moxaTableAddr[port]; 19901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (baud > max) 19911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds baud = max; 19921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (max == 38400L) 19931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds clock = 614400L; /* for 9.8304 Mhz : max. 38400 bps */ 19941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (max == 57600L) 19951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds clock = 691200L; /* for 11.0592 Mhz : max. 57600 bps */ 19961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 19971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds clock = 921600L; /* for 14.7456 Mhz : max. 115200 bps */ 19981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = clock / baud; 19991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetBaud, val); 20001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds baud = clock / val; 20011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaCurBaud[port] = baud; 20021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (baud); 20031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2005606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Coxint MoxaPortSetTermio(int port, struct ktermios *termio, speed_t baud) 20061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 20071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 20081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tcflag_t cflag; 20091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tcflag_t mode = 0; 20101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (moxaChkPort[port] == 0 || termio == 0) 20121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-1); 20131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofsAddr = moxaTableAddr[port]; 20141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cflag = termio->c_cflag; /* termio->c_cflag */ 20151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode = termio->c_cflag & CSIZE; 20171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (mode == CS5) 20181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode = MX_CS5; 20191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (mode == CS6) 20201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode = MX_CS6; 20211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (mode == CS7) 20221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode = MX_CS7; 20231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (mode == CS8) 20241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode = MX_CS8; 20251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (termio->c_cflag & CSTOPB) { 20271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (mode == MX_CS5) 20281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= MX_STOP15; 20291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 20301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= MX_STOP2; 20311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 20321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= MX_STOP1; 20331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (termio->c_cflag & PARENB) { 20351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (termio->c_cflag & PARODD) 20361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= MX_PARODD; 20371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 20381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= MX_PAREVEN; 20391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 20401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= MX_PARNONE; 20411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetDataMode, (ushort) mode); 20431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_ISA) || 20451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_PCI)) { 2046c7bce3097c0f9bbed76ee6fd03742f2624031a45Alan Cox if (baud >= 921600L) 20471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-1); 20481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortSetBaud(port, baud); 20501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (termio->c_iflag & (IXON | IXOFF | IXANY)) { 20521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(termio->c_cc[VSTART], ofsAddr + FuncArg); 20531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(termio->c_cc[VSTOP], ofsAddr + FuncArg1); 20541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(FC_SetXonXoff, ofsAddr + FuncCode); 20551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wait_finish(ofsAddr); 20561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 20591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint MoxaPortGetLineOut(int port, int *dtrState, int *rtsState) 20621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 20631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!MoxaPortIsValid(port)) 20651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-1); 20661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dtrState) { 20671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (moxaLineCtrl[port] & DTR_ON) 20681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *dtrState = 1; 20691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 20701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *dtrState = 0; 20711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rtsState) { 20731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (moxaLineCtrl[port] & RTS_ON) 20741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *rtsState = 1; 20751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 20761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *rtsState = 0; 20771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 20791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid MoxaPortLineCtrl(int port, int dtr, int rts) 20821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 20831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 20841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mode; 20851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofsAddr = moxaTableAddr[port]; 20871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode = 0; 20881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dtr) 20891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= DTR_ON; 20901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rts) 20911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= RTS_ON; 20921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaLineCtrl[port] = mode; 20931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_LineControl, mode); 20941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid MoxaPortFlowCtrl(int port, int rts, int cts, int txflow, int rxflow, int txany) 20971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 20981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 20991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mode; 21001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofsAddr = moxaTableAddr[port]; 21021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode = 0; 21031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rts) 21041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= RTS_FlowCtl; 21051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cts) 21061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= CTS_FlowCtl; 21071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (txflow) 21081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= Tx_FlowCtl; 21091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rxflow) 21101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= Rx_FlowCtl; 21111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (txany) 21121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= IXM_IXANY; 21131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetFlowCtl, mode); 21141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint MoxaPortLineStatus(int port) 21171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 21191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val; 21201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofsAddr = moxaTableAddr[port]; 21221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_ISA) || 21231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_PCI)) { 21241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_LineStatus, 0); 21251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = readw(ofsAddr + FuncArg); 21261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 21271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = readw(ofsAddr + FlagStat) >> 4; 21281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val &= 0x0B; 21301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val & 8) { 21311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val |= 4; 21321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((moxaDCDState[port] & DCD_oldstate) == 0) 21331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDCDState[port] = (DCD_oldstate | DCD_changed); 21341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 21351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (moxaDCDState[port] & DCD_oldstate) 21361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDCDState[port] = DCD_changed; 21371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val &= 7; 21391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (val); 21401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint MoxaPortDCDChange(int port) 21431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int n; 21451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (moxaChkPort[port] == 0) 21471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 21481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds n = moxaDCDState[port]; 21491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDCDState[port] &= ~DCD_changed; 21501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds n &= DCD_changed; 21511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (n); 21521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint MoxaPortDCDON(int port) 21551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int n; 21571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (moxaChkPort[port] == 0) 21591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 21601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (moxaDCDState[port] & DCD_oldstate) 21611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds n = 1; 21621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 21631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds n = 0; 21641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (n); 21651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint MoxaPortWriteData(int port, unsigned char * buffer, int len) 21681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int c, total, i; 21701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort tail; 21711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int cnt; 21721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort head, tx_mask, spage, epage; 21731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort pageno, pageofs, bufhead; 21741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *baseAddr, *ofsAddr, *ofs; 21751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofsAddr = moxaTableAddr[port]; 21771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds baseAddr = moxaBaseAddr[port / MAX_PORTS_PER_BOARD]; 21781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tx_mask = readw(ofsAddr + TX_mask); 21791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spage = readw(ofsAddr + Page_txb); 21801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds epage = readw(ofsAddr + EndPage_txb); 21811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tail = readw(ofsAddr + TXwptr); 21821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds head = readw(ofsAddr + TXrptr); 21831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds c = (head > tail) ? (head - tail - 1) 21841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds : (head - tail + tx_mask); 21851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (c > len) 21861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds c = len; 21871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaLog.txcnt[port] += c; 21881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds total = c; 21891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (spage == epage) { 21901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bufhead = readw(ofsAddr + Ofs_txb); 21911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(spage, baseAddr + Control_reg); 21921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (c > 0) { 21931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (head > tail) 21941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = head - tail - 1; 21951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 21961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = tx_mask + 1 - tail; 21971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = (c > len) ? len : c; 21981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofs = baseAddr + DynPage_addr + bufhead + tail; 21991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < len; i++) 22001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(*buffer++, ofs + i); 22011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tail = (tail + len) & tx_mask; 22021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds c -= len; 22031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(tail, ofsAddr + TXwptr); 22051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 22061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = c; 22071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageno = spage + (tail >> 13); 22081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageofs = tail & Page_mask; 22091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do { 22101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cnt = Page_size - pageofs; 22111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cnt > c) 22121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cnt = c; 22131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds c -= cnt; 22141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(pageno, baseAddr + Control_reg); 22151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofs = baseAddr + DynPage_addr + pageofs; 22161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < cnt; i++) 22171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(*buffer++, ofs + i); 22181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (c == 0) { 22191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew((tail + len) & tx_mask, ofsAddr + TXwptr); 22201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 22211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (++pageno == epage) 22231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageno = spage; 22241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageofs = 0; 22251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } while (1); 22261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(1, ofsAddr + CD180TXirq); /* start to send */ 22281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (total); 22291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 223133f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Coxint MoxaPortReadData(int port, struct tty_struct *tty) 22321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 22331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds register ushort head, pageofs; 22341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, count, cnt, len, total, remain; 22351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort tail, rx_mask, spage, epage; 22361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort pageno, bufhead; 22371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *baseAddr, *ofsAddr, *ofs; 22381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofsAddr = moxaTableAddr[port]; 22401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds baseAddr = moxaBaseAddr[port / MAX_PORTS_PER_BOARD]; 22411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds head = readw(ofsAddr + RXrptr); 22421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tail = readw(ofsAddr + RXwptr); 22431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rx_mask = readw(ofsAddr + RX_mask); 22441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spage = readw(ofsAddr + Page_rxb); 22451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds epage = readw(ofsAddr + EndPage_rxb); 22461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count = (tail >= head) ? (tail - head) 22471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds : (tail - head + rx_mask + 1); 22481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (count == 0) 224933f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox return 0; 22501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 225133f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox total = count; 22521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds remain = count - total; 22531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaLog.rxcnt[port] += total; 22541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count = total; 22551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (spage == epage) { 22561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bufhead = readw(ofsAddr + Ofs_rxb); 22571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(spage, baseAddr + Control_reg); 22581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (count > 0) { 22591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tail >= head) 22601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = tail - head; 22611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 22621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = rx_mask + 1 - head; 22631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = (count > len) ? len : count; 22641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofs = baseAddr + DynPage_addr + bufhead + head; 22651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < len; i++) 226633f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox tty_insert_flip_char(tty, readb(ofs + i), TTY_NORMAL); 22671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds head = (head + len) & rx_mask; 22681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count -= len; 22691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(head, ofsAddr + RXrptr); 22711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 22721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = count; 22731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageno = spage + (head >> 13); 22741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageofs = head & Page_mask; 22751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do { 22761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cnt = Page_size - pageofs; 22771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cnt > count) 22781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cnt = count; 22791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count -= cnt; 22801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(pageno, baseAddr + Control_reg); 22811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofs = baseAddr + DynPage_addr + pageofs; 22821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < cnt; i++) 228333f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox tty_insert_flip_char(tty, readb(ofs + i), TTY_NORMAL); 22841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (count == 0) { 22851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew((head + len) & rx_mask, ofsAddr + RXrptr); 22861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 22871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (++pageno == epage) 22891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageno = spage; 22901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageofs = 0; 22911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } while (1); 22921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((readb(ofsAddr + FlagStat) & Xoff_state) && (remain < LowWater)) { 22941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaLowWaterChk = 1; 22951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaLowChkFlag[port] = 1; 22961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (total); 22981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint MoxaPortTxQueue(int port) 23021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 23031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 23041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort rptr, wptr, mask; 23051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int len; 23061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofsAddr = moxaTableAddr[port]; 23081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rptr = readw(ofsAddr + TXrptr); 23091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wptr = readw(ofsAddr + TXwptr); 23101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mask = readw(ofsAddr + TX_mask); 23111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = (wptr - rptr) & mask; 23121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (len); 23131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint MoxaPortTxFree(int port) 23161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 23171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 23181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort rptr, wptr, mask; 23191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int len; 23201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofsAddr = moxaTableAddr[port]; 23221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rptr = readw(ofsAddr + TXrptr); 23231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wptr = readw(ofsAddr + TXwptr); 23241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mask = readw(ofsAddr + TX_mask); 23251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = mask - ((wptr - rptr) & mask); 23261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (len); 23271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint MoxaPortRxQueue(int port) 23301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 23311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 23321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort rptr, wptr, mask; 23331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int len; 23341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofsAddr = moxaTableAddr[port]; 23361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rptr = readw(ofsAddr + RXrptr); 23371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wptr = readw(ofsAddr + RXwptr); 23381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mask = readw(ofsAddr + RX_mask); 23391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = (wptr - rptr) & mask; 23401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (len); 23411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid MoxaPortTxDisable(int port) 23451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 23461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 23471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofsAddr = moxaTableAddr[port]; 23491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetXoffState, Magic_code); 23501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid MoxaPortTxEnable(int port) 23531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 23541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 23551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofsAddr = moxaTableAddr[port]; 23571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetXonState, Magic_code); 23581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint MoxaPortResetBrkCnt(int port) 23621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 23631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort cnt; 23641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cnt = moxaBreakCnt[port]; 23651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaBreakCnt[port] = 0; 23661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (cnt); 23671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid MoxaPortSendBreak(int port, int ms100) 23711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 23721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 23731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofsAddr = moxaTableAddr[port]; 23751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ms100) { 23761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SendBreak, Magic_code); 23771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxadelay(ms100 * (HZ / 10)); 23781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 23791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SendBreak, Magic_code); 23801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxadelay(HZ / 4); /* 250 ms */ 23811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_StopBreak, Magic_code); 23831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_get_serial_info(struct moxa_str *info, 23861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct serial_struct __user *retinfo) 23871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 23881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct serial_struct tmp; 23891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&tmp, 0, sizeof(tmp)); 23911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp.type = info->type; 23921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp.line = info->port; 23931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp.port = 0; 23941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp.irq = 0; 23951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp.flags = info->asyncflags; 23961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp.baud_base = 921600; 23971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp.close_delay = info->close_delay; 23981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp.closing_wait = info->closing_wait; 23991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp.custom_divisor = 0; 24001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp.hub6 = 0; 24011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(copy_to_user(retinfo, &tmp, sizeof(*retinfo))) 24021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 24031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 24041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_set_serial_info(struct moxa_str *info, 24081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct serial_struct __user *new_info) 24091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 24101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct serial_struct new_serial; 24111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(copy_from_user(&new_serial, new_info, sizeof(new_serial))) 24131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 24141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((new_serial.irq != 0) || 24161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (new_serial.port != 0) || 24171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds// (new_serial.type != info->type) || 24181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (new_serial.custom_divisor != 0) || 24191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (new_serial.baud_base != 921600)) 24201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-EPERM); 24211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_ADMIN)) { 24231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (((new_serial.flags & ~ASYNC_USR_MASK) != 24241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (info->asyncflags & ~ASYNC_USR_MASK))) 24251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-EPERM); 24261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 24271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->close_delay = new_serial.close_delay * HZ / 100; 24281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->closing_wait = new_serial.closing_wait * HZ / 100; 24291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_serial.flags = (new_serial.flags & ~ASYNC_FLAGS); 24321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_serial.flags |= (info->asyncflags & ASYNC_FLAGS); 24331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (new_serial.type == PORT_16550A) { 24351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaSetFifo(info->port, 1); 24361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 24371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaSetFifo(info->port, 0); 24381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->type = new_serial.type; 24411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 24421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/***************************************************************************** 24471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Static local functions: * 24481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *****************************************************************************/ 24491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 24501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * moxadelay - delays a specified number ticks 24511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 24521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxadelay(int tick) 24531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 24541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long st, et; 24551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds st = jiffies; 24571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds et = st + tick; 24581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (time_before(jiffies, et)); 24591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxafunc(void __iomem *ofsAddr, int cmd, ushort arg) 24621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 24631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(arg, ofsAddr + FuncArg); 24651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(cmd, ofsAddr + FuncCode); 24661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wait_finish(ofsAddr); 24671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void wait_finish(void __iomem *ofsAddr) 24701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 24711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long i, j; 24721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = jiffies; 24741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (readw(ofsAddr + FuncCode) != 0) { 24751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds j = jiffies; 24761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((j - i) > moxaFuncTout) { 24771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 24781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void low_water_check(void __iomem *ofsAddr) 24831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 24841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int len; 24851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort rptr, wptr, mask; 24861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readb(ofsAddr + FlagStat) & Xoff_state) { 24881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rptr = readw(ofsAddr + RXrptr); 24891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wptr = readw(ofsAddr + RXwptr); 24901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mask = readw(ofsAddr + RX_mask); 24911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = (wptr - rptr) & mask; 24921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (len <= Low_water) 24931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SendXon, 0); 24941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxaloadbios(int cardno, unsigned char __user *tmp, int len) 24981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 24991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *baseAddr; 25001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 25011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(copy_from_user(moxaBuff, tmp, len)) 25031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 25041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds baseAddr = moxaBaseAddr[cardno]; 25051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(HW_reset, baseAddr + Control_reg); /* reset */ 25061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxadelay(1); /* delay 10 ms */ 25071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 4096; i++) 25081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(0, baseAddr + i); /* clear fix page */ 25091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < len; i++) 25101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(moxaBuff[i], baseAddr + i); /* download BIOS */ 25111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(0, baseAddr + Control_reg); /* restart */ 25121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 25131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 25141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxafindcard(int cardno) 25161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 25171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *baseAddr; 25181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort tmp; 25191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds baseAddr = moxaBaseAddr[cardno]; 25211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (moxa_boards[cardno].boardType) { 25221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_BOARD_C218_ISA: 25231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_BOARD_C218_PCI: 25241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((tmp = readw(baseAddr + C218_key)) != C218_KeyCode) { 25251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-1); 25261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 25271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 25281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_BOARD_CP204J: 25291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((tmp = readw(baseAddr + C218_key)) != CP204J_KeyCode) { 25301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-1); 25311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 25321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 25331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 25341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((tmp = readw(baseAddr + C320_key)) != C320_KeyCode) { 25351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-1); 25361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 25371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((tmp = readw(baseAddr + C320_status)) != STS_init) { 25381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-2); 25391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 25401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 25411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 25421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 25431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxaload320b(int cardno, unsigned char __user *tmp, int len) 25451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 25461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *baseAddr; 25471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 25481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(len > sizeof(moxaBuff)) 25501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 25511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(copy_from_user(moxaBuff, tmp, len)) 25521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 25531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds baseAddr = moxaBaseAddr[cardno]; 25541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(len - 7168 - 2, baseAddr + C320bapi_len); 25551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(1, baseAddr + Control_reg); /* Select Page 1 */ 25561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 7168; i++) 25571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(moxaBuff[i], baseAddr + DynPage_addr + i); 25581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(2, baseAddr + Control_reg); /* Select Page 2 */ 25591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < (len - 7168); i++) 25601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(moxaBuff[i + 7168], baseAddr + DynPage_addr + i); 25611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 25621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 25631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxaloadcode(int cardno, unsigned char __user *tmp, int len) 25651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 25661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *baseAddr, *ofsAddr; 25671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int retval, port, i; 25681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(copy_from_user(moxaBuff, tmp, len)) 25701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 25711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds baseAddr = moxaBaseAddr[cardno]; 25721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (moxa_boards[cardno].boardType) { 25731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_BOARD_C218_ISA: 25741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_BOARD_C218_PCI: 25751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_BOARD_CP204J: 25761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retval = moxaloadc218(cardno, baseAddr, len); 25771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) 25781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (retval); 25791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port = cardno * MAX_PORTS_PER_BOARD; 25801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < moxa_boards[cardno].numPorts; i++, port++) { 25811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaChkPort[port] = 1; 25821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaCurBaud[port] = 9600L; 25831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDCDState[port] = 0; 25841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaTableAddr[port] = baseAddr + Extern_table + Extern_size * i; 25851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofsAddr = moxaTableAddr[port]; 25861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C218rx_mask, ofsAddr + RX_mask); 25871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C218tx_mask, ofsAddr + TX_mask); 25881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C218rx_spage + i * C218buf_pageno, ofsAddr + Page_rxb); 25891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(readw(ofsAddr + Page_rxb) + C218rx_pageno, ofsAddr + EndPage_rxb); 25901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C218tx_spage + i * C218buf_pageno, ofsAddr + Page_txb); 25921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(readw(ofsAddr + Page_txb) + C218tx_pageno, ofsAddr + EndPage_txb); 25931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 25951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 25961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 25971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retval = moxaloadc320(cardno, baseAddr, len, 25981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &moxa_boards[cardno].numPorts); 25991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) 26001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (retval); 26011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port = cardno * MAX_PORTS_PER_BOARD; 26021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < moxa_boards[cardno].numPorts; i++, port++) { 26031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaChkPort[port] = 1; 26041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaCurBaud[port] = 9600L; 26051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDCDState[port] = 0; 26061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaTableAddr[port] = baseAddr + Extern_table + Extern_size * i; 26071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofsAddr = moxaTableAddr[port]; 26081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (moxa_boards[cardno].numPorts == 8) { 26091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p8rx_mask, ofsAddr + RX_mask); 26101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p8tx_mask, ofsAddr + TX_mask); 26111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p8rx_spage + i * C320p8buf_pgno, ofsAddr + Page_rxb); 26121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(readw(ofsAddr + Page_rxb) + C320p8rx_pgno, ofsAddr + EndPage_rxb); 26131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p8tx_spage + i * C320p8buf_pgno, ofsAddr + Page_txb); 26141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(readw(ofsAddr + Page_txb) + C320p8tx_pgno, ofsAddr + EndPage_txb); 26151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (moxa_boards[cardno].numPorts == 16) { 26171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p16rx_mask, ofsAddr + RX_mask); 26181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p16tx_mask, ofsAddr + TX_mask); 26191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p16rx_spage + i * C320p16buf_pgno, ofsAddr + Page_rxb); 26201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(readw(ofsAddr + Page_rxb) + C320p16rx_pgno, ofsAddr + EndPage_rxb); 26211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p16tx_spage + i * C320p16buf_pgno, ofsAddr + Page_txb); 26221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(readw(ofsAddr + Page_txb) + C320p16tx_pgno, ofsAddr + EndPage_txb); 26231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (moxa_boards[cardno].numPorts == 24) { 26251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p24rx_mask, ofsAddr + RX_mask); 26261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p24tx_mask, ofsAddr + TX_mask); 26271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p24rx_spage + i * C320p24buf_pgno, ofsAddr + Page_rxb); 26281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(readw(ofsAddr + Page_rxb) + C320p24rx_pgno, ofsAddr + EndPage_rxb); 26291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p24tx_spage + i * C320p24buf_pgno, ofsAddr + Page_txb); 26301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(readw(ofsAddr + Page_txb), ofsAddr + EndPage_txb); 26311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (moxa_boards[cardno].numPorts == 32) { 26321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p32rx_mask, ofsAddr + RX_mask); 26331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p32tx_mask, ofsAddr + TX_mask); 26341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p32tx_ofs, ofsAddr + Ofs_txb); 26351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p32rx_spage + i * C320p32buf_pgno, ofsAddr + Page_rxb); 26361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(readb(ofsAddr + Page_rxb), ofsAddr + EndPage_rxb); 26371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p32tx_spage + i * C320p32buf_pgno, ofsAddr + Page_txb); 26381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(readw(ofsAddr + Page_txb), ofsAddr + EndPage_txb); 26391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 26401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 26411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 26421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 264301cfaf0d12ae5fa092cc916ca4066ee1598e857dDirk Eibach loadstat[cardno] = 1; 26441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 26451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 26461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxaloadc218(int cardno, void __iomem *baseAddr, int len) 26481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 26491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char retry; 26501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, j, len1, len2; 26511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort usum, *ptr, keycode; 26521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (moxa_boards[cardno].boardType == MOXA_BOARD_CP204J) 26541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds keycode = CP204J_KeyCode; 26551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 26561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds keycode = C218_KeyCode; 26571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds usum = 0; 26581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len1 = len >> 1; 26591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ptr = (ushort *) moxaBuff; 26601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < len1; i++) 266101cfaf0d12ae5fa092cc916ca4066ee1598e857dDirk Eibach usum += le16_to_cpu(*(ptr + i)); 26621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retry = 0; 26631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do { 26641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len1 = len >> 1; 26651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds j = 0; 26661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (len1) { 26671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len2 = (len1 > 2048) ? 2048 : len1; 26681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len1 -= len2; 26691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < len2 << 1; i++) 26701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(moxaBuff[i + j], baseAddr + C218_LoadBuf + i); 26711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds j += i; 26721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(len2, baseAddr + C218DLoad_len); 26741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0, baseAddr + C218_key); 26751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 100; i++) { 26761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + C218_key) == keycode) 26771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 26781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxadelay(1); /* delay 10 ms */ 26791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 26801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + C218_key) != keycode) { 26811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-1); 26821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 26831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 26841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0, baseAddr + C218DLoad_len); 26851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(usum, baseAddr + C218check_sum); 26861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0, baseAddr + C218_key); 26871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 100; i++) { 26881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + C218_key) == keycode) 26891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 26901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxadelay(1); /* delay 10 ms */ 26911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 26921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retry++; 26931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } while ((readb(baseAddr + C218chksum_ok) != 1) && (retry < 3)); 26941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readb(baseAddr + C218chksum_ok) != 1) { 26951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-1); 26961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 26971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0, baseAddr + C218_key); 26981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 100; i++) { 26991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + Magic_no) == Magic_code) 27001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 27011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxadelay(1); /* delay 10 ms */ 27021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + Magic_no) != Magic_code) { 27041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-1); 27051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(1, baseAddr + Disable_IRQ); 27071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0, baseAddr + Magic_no); 27081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 100; i++) { 27091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + Magic_no) == Magic_code) 27101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 27111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxadelay(1); /* delay 10 ms */ 27121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + Magic_no) != Magic_code) { 27141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-1); 27151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaCard = 1; 27171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaIntNdx[cardno] = baseAddr + IRQindex; 27181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaIntPend[cardno] = baseAddr + IRQpending; 27191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaIntTable[cardno] = baseAddr + IRQtable; 27201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 27211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 27221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxaloadc320(int cardno, void __iomem *baseAddr, int len, int *numPorts) 27241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 27251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort usum; 27261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, j, wlen, len2, retry; 27271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort *uptr; 27281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds usum = 0; 27301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wlen = len >> 1; 27311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uptr = (ushort *) moxaBuff; 27321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < wlen; i++) 273301cfaf0d12ae5fa092cc916ca4066ee1598e857dDirk Eibach usum += le16_to_cpu(uptr[i]); 27341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retry = 0; 27351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds j = 0; 27361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do { 27371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (wlen) { 27381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (wlen > 2048) 27391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len2 = 2048; 27401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 27411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len2 = wlen; 27421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wlen -= len2; 27431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len2 <<= 1; 27441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < len2; i++) 27451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(moxaBuff[j + i], baseAddr + C320_LoadBuf + i); 27461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len2 >>= 1; 27471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds j += i; 27481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(len2, baseAddr + C320DLoad_len); 27491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0, baseAddr + C320_key); 27501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 10; i++) { 27511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + C320_key) == C320_KeyCode) 27521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 27531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxadelay(1); 27541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + C320_key) != C320_KeyCode) 27561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-1); 27571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0, baseAddr + C320DLoad_len); 27591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(usum, baseAddr + C320check_sum); 27601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0, baseAddr + C320_key); 27611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 10; i++) { 27621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + C320_key) == C320_KeyCode) 27631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 27641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxadelay(1); 27651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retry++; 27671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } while ((readb(baseAddr + C320chksum_ok) != 1) && (retry < 3)); 27681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readb(baseAddr + C320chksum_ok) != 1) 27691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-1); 27701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0, baseAddr + C320_key); 27711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 600; i++) { 27721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + Magic_no) == Magic_code) 27731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 27741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxadelay(1); 27751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + Magic_no) != Magic_code) 27771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-100); 27781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (moxa_boards[cardno].busType == MOXA_BUS_TYPE_PCI) { /* ASIC board */ 27801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0x3800, baseAddr + TMS320_PORT1); 27811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0x3900, baseAddr + TMS320_PORT2); 27821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(28499, baseAddr + TMS320_CLOCK); 27831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 27841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0x3200, baseAddr + TMS320_PORT1); 27851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0x3400, baseAddr + TMS320_PORT2); 27861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(19999, baseAddr + TMS320_CLOCK); 27871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(1, baseAddr + Disable_IRQ); 27891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0, baseAddr + Magic_no); 27901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 500; i++) { 27911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + Magic_no) == Magic_code) 27921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 27931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxadelay(1); 27941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + Magic_no) != Magic_code) 27961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-102); 27971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds j = readw(baseAddr + Module_cnt); 27991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (j <= 0) 28001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-101); 28011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *numPorts = j * 8; 28021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(j, baseAddr + Module_no); 28031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0, baseAddr + Magic_no); 28041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 600; i++) { 28051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + Magic_no) == Magic_code) 28061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 28071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxadelay(1); 28081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 28091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + Magic_no) != Magic_code) 28101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-102); 28111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaCard = 1; 28121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaIntNdx[cardno] = baseAddr + IRQindex; 28131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaIntPend[cardno] = baseAddr + IRQpending; 28141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaIntTable[cardno] = baseAddr + IRQtable; 28151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 28161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 28171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 28181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void MoxaSetFifo(int port, int enable) 28191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 28201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr = moxaTableAddr[port]; 28211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 28221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!enable) { 28231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetRxFIFOTrig, 0); 28241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetTxFIFOCnt, 1); 28251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 28261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetRxFIFOTrig, 3); 28271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetTxFIFOCnt, 16); 28281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 28291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2830