moxa.c revision 0bcc4caadc8f5396b52950ee03c67b76875602df
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> 28037182346f0991683cc7320a257c3f6089432ceeJiri Slaby#include <linux/firmware.h> 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/signal.h> 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/sched.h> 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/timer.h> 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/interrupt.h> 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/tty.h> 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/tty_flip.h> 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/major.h> 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/string.h> 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/fcntl.h> 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/ptrace.h> 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/serial.h> 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/tty_driver.h> 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/delay.h> 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/pci.h> 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/bitops.h> 4595e0791480af8347460d0cbe34a46eca7e77d0d0Jiri Slaby#include <linux/completion.h> 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/system.h> 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/io.h> 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/uaccess.h> 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 51037182346f0991683cc7320a257c3f6089432ceeJiri Slaby#include "moxa.h" 52037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 5311324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby#define MOXA_VERSION "5.1k" 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 55037182346f0991683cc7320a257c3f6089432ceeJiri Slaby#define MOXA_FW_HDRLEN 32 56037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 5711324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby#define MOXAMAJOR 172 5811324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby#define MOXACUMAJOR 173 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6011324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby#define MAX_BOARDS 4 /* Don't change this value */ 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MAX_PORTS_PER_BOARD 32 /* Don't change this value */ 6211324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby#define MAX_PORTS (MAX_BOARDS * MAX_PORTS_PER_BOARD) 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Define the Moxa PCI vendor and device IDs. 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6711324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby#define MOXA_BUS_TYPE_ISA 0 6811324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby#define MOXA_BUS_TYPE_PCI 1 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsenum { 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MOXA_BOARD_C218_PCI = 1, 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MOXA_BOARD_C218_ISA, 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MOXA_BOARD_C320_PCI, 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MOXA_BOARD_C320_ISA, 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MOXA_BOARD_CP204J, 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic char *moxa_brdname[] = 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "C218 Turbo PCI series", 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "C218 Turbo ISA series", 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "C320 Turbo PCI series", 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "C320 Turbo ISA series", 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "CP-204J series", 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PCI 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct pci_device_id moxa_pcibrds[] = { 895ebb4078af0dab866fdf57f84f72b9e9a7e8c6b8Jiri Slaby { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C218), 905ebb4078af0dab866fdf57f84f72b9e9a7e8c6b8Jiri Slaby .driver_data = MOXA_BOARD_C218_PCI }, 915ebb4078af0dab866fdf57f84f72b9e9a7e8c6b8Jiri Slaby { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C320), 925ebb4078af0dab866fdf57f84f72b9e9a7e8c6b8Jiri Slaby .driver_data = MOXA_BOARD_C320_PCI }, 935ebb4078af0dab866fdf57f84f72b9e9a7e8c6b8Jiri Slaby { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP204J), 945ebb4078af0dab866fdf57f84f72b9e9a7e8c6b8Jiri Slaby .driver_data = MOXA_BOARD_CP204J }, 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DEVICE_TABLE(pci, moxa_pcibrds); 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_PCI */ 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 100037182346f0991683cc7320a257c3f6089432ceeJiri Slabystruct moxa_port; 101037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 1028f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slabystatic struct moxa_board_conf { 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int boardType; 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int numPorts; 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int busType; 1068f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby 107810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby unsigned int ready; 1088f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby 109037182346f0991683cc7320a257c3f6089432ceeJiri Slaby struct moxa_port *ports; 110037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 1118f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby void __iomem *basemem; 1128f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby void __iomem *intNdx; 1138f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby void __iomem *intPend; 1148f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby void __iomem *intTable; 1158f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby} moxa_boards[MAX_BOARDS]; 1168f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby 1178f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slabystruct mxser_mstatus { 1188f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby tcflag_t cflag; 1198f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby int cts; 1208f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby int dsr; 1218f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby int ri; 1228f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby int dcd; 1239dff89cd82af7bccc706fed288b1c33a51c3b937Jiri Slaby}; 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1258f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slabystruct moxaq_str { 1268f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby int inq; 1278f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby int outq; 1288f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby}; 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1308f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slabystruct moxa_port { 131b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby struct moxa_board_conf *board; 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int type; 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int close_delay; 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int count; 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int blocked_open; 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int asyncflags; 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long statusflags; 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct tty_struct *tty; 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int cflag; 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wait_queue_head_t open_wait; 14195e0791480af8347460d0cbe34a46eca7e77d0d0Jiri Slaby struct completion close_wait; 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1438f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct timer_list emptyTimer; 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1458f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby char lineCtrl; 1468f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby void __iomem *tableAddr; 1478f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby char DCDState; 1488f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby char lowChkFlag; 1498f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby 1508f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ushort breakCnt; 1518f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby}; 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* statusflags */ 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXSTOPPED 0x1 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LOWWAIT 0x2 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define EMPTYWAIT 0x4 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define THROTTLE 0x8 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SERIAL_DO_RESTART 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define WAKEUP_CHARS 256 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int ttymajor = MOXAMAJOR; 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Variables for insmod */ 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef MODULE 166d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slabystatic unsigned long baseaddr[MAX_BOARDS]; 167d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slabystatic unsigned int type[MAX_BOARDS]; 168d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slabystatic unsigned int numports[MAX_BOARDS]; 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_AUTHOR("William Chen"); 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DESCRIPTION("MOXA Intellio Family Multiport Board Device Driver"); 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("GPL"); 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef MODULE 175d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slabymodule_param_array(type, uint, NULL, 0); 176d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri SlabyMODULE_PARM_DESC(type, "card type: C218=2, C320=4"); 177d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slabymodule_param_array(baseaddr, ulong, NULL, 0); 178d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri SlabyMODULE_PARM_DESC(baseaddr, "base address"); 179d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slabymodule_param_array(numports, uint, NULL, 0); 180d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri SlabyMODULE_PARM_DESC(numports, "numports (ignored for C218)"); 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_param(ttymajor, int, 0); 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * static functions: 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_open(struct tty_struct *, struct file *); 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_close(struct tty_struct *, struct file *); 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_write(struct tty_struct *, const unsigned char *, int); 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_write_room(struct tty_struct *); 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_flush_buffer(struct tty_struct *); 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_chars_in_buffer(struct tty_struct *); 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_flush_chars(struct tty_struct *); 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_put_char(struct tty_struct *, unsigned char); 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_ioctl(struct tty_struct *, struct file *, unsigned int, unsigned long); 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_throttle(struct tty_struct *); 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_unthrottle(struct tty_struct *); 198606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Coxstatic void moxa_set_termios(struct tty_struct *, struct ktermios *); 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_stop(struct tty_struct *); 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_start(struct tty_struct *); 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_hangup(struct tty_struct *); 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_tiocmget(struct tty_struct *tty, struct file *file); 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_tiocmset(struct tty_struct *tty, struct file *file, 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int set, unsigned int clear); 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_poll(unsigned long); 206db1acaa632870ec87b65e062bc72ca375837a1f6Alan Coxstatic void moxa_set_tty_param(struct tty_struct *, struct ktermios *); 2076f56b658b4e5c4486641ce62f331150954c4de37Jiri Slabystatic int moxa_block_till_ready(struct tty_struct *, struct file *, 2088f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *); 2096f56b658b4e5c4486641ce62f331150954c4de37Jiri Slabystatic void moxa_setup_empty_event(struct tty_struct *); 2106f56b658b4e5c4486641ce62f331150954c4de37Jiri Slabystatic void moxa_check_xmit_empty(unsigned long); 2116f56b658b4e5c4486641ce62f331150954c4de37Jiri Slabystatic void moxa_shut_down(struct moxa_port *); 2126f56b658b4e5c4486641ce62f331150954c4de37Jiri Slabystatic void moxa_receive_data(struct moxa_port *); 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * moxa board interface functions: 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 216b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaDriverIoctl(struct tty_struct *, unsigned int, unsigned long); 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int MoxaDriverPoll(void); 218b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortEnable(struct moxa_port *); 219b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortDisable(struct moxa_port *); 220b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortSetTermio(struct moxa_port *, struct ktermios *, speed_t); 221b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortGetLineOut(struct moxa_port *, int *, int *); 222b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortLineCtrl(struct moxa_port *, int, int); 223b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortFlowCtrl(struct moxa_port *, int, int, int, int, int); 224b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortLineStatus(struct moxa_port *); 225b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortDCDChange(struct moxa_port *); 226b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortDCDON(struct moxa_port *); 227b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortFlushData(struct moxa_port *, int); 228b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortWriteData(struct moxa_port *, unsigned char *, int); 229b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortReadData(struct moxa_port *, struct tty_struct *tty); 230b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortTxQueue(struct moxa_port *); 231b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortRxQueue(struct moxa_port *); 232b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortTxFree(struct moxa_port *); 233b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortTxDisable(struct moxa_port *); 234b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortTxEnable(struct moxa_port *); 235b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortResetBrkCnt(struct moxa_port *); 236b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortSendBreak(struct moxa_port *, int); 2378f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slabystatic int moxa_get_serial_info(struct moxa_port *, struct serial_struct __user *); 2388f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slabystatic int moxa_set_serial_info(struct moxa_port *, struct serial_struct __user *); 239b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaSetFifo(struct moxa_port *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 DEFINE_TIMER(moxaTimer, moxa_poll, 0, 0); 26334af946a22724c4e2b204957f2b24b22a0fb121cIngo Molnarstatic DEFINE_SPINLOCK(moxa_lock); 26433f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox 265037182346f0991683cc7320a257c3f6089432ceeJiri Slabystatic int moxa_check_fw_model(struct moxa_board_conf *brd, u8 model) 266037182346f0991683cc7320a257c3f6089432ceeJiri Slaby{ 267037182346f0991683cc7320a257c3f6089432ceeJiri Slaby switch (brd->boardType) { 268037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_C218_ISA: 269037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_C218_PCI: 270037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (model != 1) 271037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 272037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 273037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_CP204J: 274037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (model != 3) 275037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 276037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 277037182346f0991683cc7320a257c3f6089432ceeJiri Slaby default: 278037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (model != 2) 279037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 280037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 281037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 282037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return 0; 283037182346f0991683cc7320a257c3f6089432ceeJiri Slabyerr: 284037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -EINVAL; 285037182346f0991683cc7320a257c3f6089432ceeJiri Slaby} 286037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 287037182346f0991683cc7320a257c3f6089432ceeJiri Slabystatic int moxa_check_fw(const void *ptr) 288037182346f0991683cc7320a257c3f6089432ceeJiri Slaby{ 289037182346f0991683cc7320a257c3f6089432ceeJiri Slaby const __le16 *lptr = ptr; 290037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 291037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (*lptr != cpu_to_le16(0x7980)) 292037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -EINVAL; 293037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 294037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return 0; 295037182346f0991683cc7320a257c3f6089432ceeJiri Slaby} 296037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 297037182346f0991683cc7320a257c3f6089432ceeJiri Slabystatic int moxa_load_bios(struct moxa_board_conf *brd, const u8 *buf, 298037182346f0991683cc7320a257c3f6089432ceeJiri Slaby size_t len) 299037182346f0991683cc7320a257c3f6089432ceeJiri Slaby{ 300037182346f0991683cc7320a257c3f6089432ceeJiri Slaby void __iomem *baseAddr = brd->basemem; 301037182346f0991683cc7320a257c3f6089432ceeJiri Slaby u16 tmp; 302037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 303037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writeb(HW_reset, baseAddr + Control_reg); /* reset */ 304037182346f0991683cc7320a257c3f6089432ceeJiri Slaby msleep(10); 305037182346f0991683cc7320a257c3f6089432ceeJiri Slaby memset_io(baseAddr, 0, 4096); 306037182346f0991683cc7320a257c3f6089432ceeJiri Slaby memcpy_toio(baseAddr, buf, len); /* download BIOS */ 307037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writeb(0, baseAddr + Control_reg); /* restart */ 308037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 309037182346f0991683cc7320a257c3f6089432ceeJiri Slaby msleep(2000); 310037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 311037182346f0991683cc7320a257c3f6089432ceeJiri Slaby switch (brd->boardType) { 312037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_C218_ISA: 313037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_C218_PCI: 314037182346f0991683cc7320a257c3f6089432ceeJiri Slaby tmp = readw(baseAddr + C218_key); 315037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (tmp != C218_KeyCode) 316037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 317037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 318037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_CP204J: 319037182346f0991683cc7320a257c3f6089432ceeJiri Slaby tmp = readw(baseAddr + C218_key); 320037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (tmp != CP204J_KeyCode) 321037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 322037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 323037182346f0991683cc7320a257c3f6089432ceeJiri Slaby default: 324037182346f0991683cc7320a257c3f6089432ceeJiri Slaby tmp = readw(baseAddr + C320_key); 325037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (tmp != C320_KeyCode) 326037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 327037182346f0991683cc7320a257c3f6089432ceeJiri Slaby tmp = readw(baseAddr + C320_status); 328037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (tmp != STS_init) { 329037182346f0991683cc7320a257c3f6089432ceeJiri Slaby printk(KERN_ERR "moxa: bios upload failed -- CPU/Basic " 330037182346f0991683cc7320a257c3f6089432ceeJiri Slaby "module not found\n"); 331037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -EIO; 332037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 333037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 334037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 335037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 336037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return 0; 337037182346f0991683cc7320a257c3f6089432ceeJiri Slabyerr: 338037182346f0991683cc7320a257c3f6089432ceeJiri Slaby printk(KERN_ERR "moxa: bios upload failed -- board not found\n"); 339037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -EIO; 340037182346f0991683cc7320a257c3f6089432ceeJiri Slaby} 341037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 342037182346f0991683cc7320a257c3f6089432ceeJiri Slabystatic int moxa_load_320b(struct moxa_board_conf *brd, const u8 *ptr, 343037182346f0991683cc7320a257c3f6089432ceeJiri Slaby size_t len) 344037182346f0991683cc7320a257c3f6089432ceeJiri Slaby{ 345037182346f0991683cc7320a257c3f6089432ceeJiri Slaby void __iomem *baseAddr = brd->basemem; 346037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 347037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (len < 7168) { 348037182346f0991683cc7320a257c3f6089432ceeJiri Slaby printk(KERN_ERR "moxa: invalid 320 bios -- too short\n"); 349037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -EINVAL; 350037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 351037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 352037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(len - 7168 - 2, baseAddr + C320bapi_len); 353037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writeb(1, baseAddr + Control_reg); /* Select Page 1 */ 354037182346f0991683cc7320a257c3f6089432ceeJiri Slaby memcpy_toio(baseAddr + DynPage_addr, ptr, 7168); 355037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writeb(2, baseAddr + Control_reg); /* Select Page 2 */ 356037182346f0991683cc7320a257c3f6089432ceeJiri Slaby memcpy_toio(baseAddr + DynPage_addr, ptr + 7168, len - 7168); 357037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 358037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return 0; 359037182346f0991683cc7320a257c3f6089432ceeJiri Slaby} 360037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 3615292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slabystatic int moxa_real_load_code(struct moxa_board_conf *brd, const void *ptr, 362037182346f0991683cc7320a257c3f6089432ceeJiri Slaby size_t len) 363037182346f0991683cc7320a257c3f6089432ceeJiri Slaby{ 364037182346f0991683cc7320a257c3f6089432ceeJiri Slaby void __iomem *baseAddr = brd->basemem; 365037182346f0991683cc7320a257c3f6089432ceeJiri Slaby const u16 *uptr = ptr; 366037182346f0991683cc7320a257c3f6089432ceeJiri Slaby size_t wlen, len2, j; 3675292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby unsigned long key, loadbuf, loadlen, checksum, checksum_ok; 3685292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby unsigned int i, retry, c320; 369037182346f0991683cc7320a257c3f6089432ceeJiri Slaby u16 usum, keycode; 370037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 3715292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby c320 = brd->boardType == MOXA_BOARD_C320_PCI || 3725292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby brd->boardType == MOXA_BOARD_C320_ISA; 3735292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby keycode = (brd->boardType == MOXA_BOARD_CP204J) ? CP204J_KeyCode : 3745292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby C218_KeyCode; 375037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 3765292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby switch (brd->boardType) { 3775292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby case MOXA_BOARD_CP204J: 3785292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby case MOXA_BOARD_C218_ISA: 3795292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby case MOXA_BOARD_C218_PCI: 3805292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby key = C218_key; 3815292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby loadbuf = C218_LoadBuf; 3825292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby loadlen = C218DLoad_len; 3835292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby checksum = C218check_sum; 3845292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby checksum_ok = C218chksum_ok; 3855292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby break; 3865292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby default: 3875292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby key = C320_key; 3885292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby keycode = C320_KeyCode; 3895292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby loadbuf = C320_LoadBuf; 3905292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby loadlen = C320DLoad_len; 3915292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby checksum = C320check_sum; 3925292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby checksum_ok = C320chksum_ok; 3935292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby break; 394037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 395037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 396037182346f0991683cc7320a257c3f6089432ceeJiri Slaby usum = 0; 397037182346f0991683cc7320a257c3f6089432ceeJiri Slaby wlen = len >> 1; 398037182346f0991683cc7320a257c3f6089432ceeJiri Slaby for (i = 0; i < wlen; i++) 399037182346f0991683cc7320a257c3f6089432ceeJiri Slaby usum += le16_to_cpu(uptr[i]); 400037182346f0991683cc7320a257c3f6089432ceeJiri Slaby retry = 0; 401037182346f0991683cc7320a257c3f6089432ceeJiri Slaby do { 402037182346f0991683cc7320a257c3f6089432ceeJiri Slaby wlen = len >> 1; 403037182346f0991683cc7320a257c3f6089432ceeJiri Slaby j = 0; 404037182346f0991683cc7320a257c3f6089432ceeJiri Slaby while (wlen) { 405037182346f0991683cc7320a257c3f6089432ceeJiri Slaby len2 = (wlen > 2048) ? 2048 : wlen; 406037182346f0991683cc7320a257c3f6089432ceeJiri Slaby wlen -= len2; 4075292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby memcpy_toio(baseAddr + loadbuf, ptr + j, len2 << 1); 408037182346f0991683cc7320a257c3f6089432ceeJiri Slaby j += len2 << 1; 4095292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby 4105292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(len2, baseAddr + loadlen); 4115292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(0, baseAddr + key); 4125292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby for (i = 0; i < 100; i++) { 4135292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby if (readw(baseAddr + key) == keycode) 414037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 415037182346f0991683cc7320a257c3f6089432ceeJiri Slaby msleep(10); 416037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 4175292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby if (readw(baseAddr + key) != keycode) 418037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -EIO; 419037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 4205292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(0, baseAddr + loadlen); 4215292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(usum, baseAddr + checksum); 4225292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(0, baseAddr + key); 4235292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby for (i = 0; i < 100; i++) { 4245292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby if (readw(baseAddr + key) == keycode) 425037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 426037182346f0991683cc7320a257c3f6089432ceeJiri Slaby msleep(10); 427037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 428037182346f0991683cc7320a257c3f6089432ceeJiri Slaby retry++; 4295292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby } while ((readb(baseAddr + checksum_ok) != 1) && (retry < 3)); 4305292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby if (readb(baseAddr + checksum_ok) != 1) 431037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -EIO; 432037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 4335292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(0, baseAddr + key); 434037182346f0991683cc7320a257c3f6089432ceeJiri Slaby for (i = 0; i < 600; i++) { 435037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (readw(baseAddr + Magic_no) == Magic_code) 436037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 437037182346f0991683cc7320a257c3f6089432ceeJiri Slaby msleep(10); 438037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 439037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (readw(baseAddr + Magic_no) != Magic_code) 440037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -EIO; 441037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 4425292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby if (c320) { 4435292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby if (brd->busType == MOXA_BUS_TYPE_PCI) { /* ASIC board */ 4445292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(0x3800, baseAddr + TMS320_PORT1); 4455292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(0x3900, baseAddr + TMS320_PORT2); 4465292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(28499, baseAddr + TMS320_CLOCK); 4475292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby } else { 4485292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(0x3200, baseAddr + TMS320_PORT1); 4495292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(0x3400, baseAddr + TMS320_PORT2); 4505292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(19999, baseAddr + TMS320_CLOCK); 4515292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby } 452037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 453037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(1, baseAddr + Disable_IRQ); 454037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(0, baseAddr + Magic_no); 455037182346f0991683cc7320a257c3f6089432ceeJiri Slaby for (i = 0; i < 500; i++) { 456037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (readw(baseAddr + Magic_no) == Magic_code) 457037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 458037182346f0991683cc7320a257c3f6089432ceeJiri Slaby msleep(10); 459037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 460037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (readw(baseAddr + Magic_no) != Magic_code) 461037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -EIO; 462037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 4635292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby if (c320) { 4645292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby j = readw(baseAddr + Module_cnt); 4655292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby if (j <= 0) 4665292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby return -EIO; 4675292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby brd->numPorts = j * 8; 4685292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(j, baseAddr + Module_no); 4695292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(0, baseAddr + Magic_no); 4705292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby for (i = 0; i < 600; i++) { 4715292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby if (readw(baseAddr + Magic_no) == Magic_code) 4725292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby break; 4735292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby msleep(10); 4745292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby } 4755292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby if (readw(baseAddr + Magic_no) != Magic_code) 4765292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby return -EIO; 477037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 478037182346f0991683cc7320a257c3f6089432ceeJiri Slaby brd->intNdx = baseAddr + IRQindex; 479037182346f0991683cc7320a257c3f6089432ceeJiri Slaby brd->intPend = baseAddr + IRQpending; 480037182346f0991683cc7320a257c3f6089432ceeJiri Slaby brd->intTable = baseAddr + IRQtable; 481037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 482037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return 0; 483037182346f0991683cc7320a257c3f6089432ceeJiri Slaby} 484037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 485037182346f0991683cc7320a257c3f6089432ceeJiri Slabystatic int moxa_load_code(struct moxa_board_conf *brd, const void *ptr, 486037182346f0991683cc7320a257c3f6089432ceeJiri Slaby size_t len) 487037182346f0991683cc7320a257c3f6089432ceeJiri Slaby{ 488037182346f0991683cc7320a257c3f6089432ceeJiri Slaby void __iomem *ofsAddr, *baseAddr = brd->basemem; 489037182346f0991683cc7320a257c3f6089432ceeJiri Slaby struct moxa_port *port; 490037182346f0991683cc7320a257c3f6089432ceeJiri Slaby int retval, i; 491037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 492037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (len % 2) { 4935292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby printk(KERN_ERR "moxa: bios length is not even\n"); 494037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -EINVAL; 495037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 496037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 4975292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby retval = moxa_real_load_code(brd, ptr, len); /* may change numPorts */ 4985292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby if (retval) 4995292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby return retval; 5005292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby 501037182346f0991683cc7320a257c3f6089432ceeJiri Slaby switch (brd->boardType) { 502037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_C218_ISA: 503037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_C218_PCI: 504037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_CP204J: 505037182346f0991683cc7320a257c3f6089432ceeJiri Slaby port = brd->ports; 506037182346f0991683cc7320a257c3f6089432ceeJiri Slaby for (i = 0; i < brd->numPorts; i++, port++) { 507b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby port->board = brd; 508037182346f0991683cc7320a257c3f6089432ceeJiri Slaby port->DCDState = 0; 509037182346f0991683cc7320a257c3f6089432ceeJiri Slaby port->tableAddr = baseAddr + Extern_table + 510037182346f0991683cc7320a257c3f6089432ceeJiri Slaby Extern_size * i; 511037182346f0991683cc7320a257c3f6089432ceeJiri Slaby ofsAddr = port->tableAddr; 512037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C218rx_mask, ofsAddr + RX_mask); 513037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C218tx_mask, ofsAddr + TX_mask); 514037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C218rx_spage + i * C218buf_pageno, ofsAddr + Page_rxb); 515037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(readw(ofsAddr + Page_rxb) + C218rx_pageno, ofsAddr + EndPage_rxb); 516037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 517037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C218tx_spage + i * C218buf_pageno, ofsAddr + Page_txb); 518037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(readw(ofsAddr + Page_txb) + C218tx_pageno, ofsAddr + EndPage_txb); 519037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 520037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 521037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 522037182346f0991683cc7320a257c3f6089432ceeJiri Slaby default: 523037182346f0991683cc7320a257c3f6089432ceeJiri Slaby port = brd->ports; 524037182346f0991683cc7320a257c3f6089432ceeJiri Slaby for (i = 0; i < brd->numPorts; i++, port++) { 525b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby port->board = brd; 526037182346f0991683cc7320a257c3f6089432ceeJiri Slaby port->DCDState = 0; 527037182346f0991683cc7320a257c3f6089432ceeJiri Slaby port->tableAddr = baseAddr + Extern_table + 528037182346f0991683cc7320a257c3f6089432ceeJiri Slaby Extern_size * i; 529037182346f0991683cc7320a257c3f6089432ceeJiri Slaby ofsAddr = port->tableAddr; 530037182346f0991683cc7320a257c3f6089432ceeJiri Slaby switch (brd->numPorts) { 531037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case 8: 532037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p8rx_mask, ofsAddr + RX_mask); 533037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p8tx_mask, ofsAddr + TX_mask); 534037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p8rx_spage + i * C320p8buf_pgno, ofsAddr + Page_rxb); 535037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(readw(ofsAddr + Page_rxb) + C320p8rx_pgno, ofsAddr + EndPage_rxb); 536037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p8tx_spage + i * C320p8buf_pgno, ofsAddr + Page_txb); 537037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(readw(ofsAddr + Page_txb) + C320p8tx_pgno, ofsAddr + EndPage_txb); 538037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 539037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 540037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case 16: 541037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p16rx_mask, ofsAddr + RX_mask); 542037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p16tx_mask, ofsAddr + TX_mask); 543037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p16rx_spage + i * C320p16buf_pgno, ofsAddr + Page_rxb); 544037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(readw(ofsAddr + Page_rxb) + C320p16rx_pgno, ofsAddr + EndPage_rxb); 545037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p16tx_spage + i * C320p16buf_pgno, ofsAddr + Page_txb); 546037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(readw(ofsAddr + Page_txb) + C320p16tx_pgno, ofsAddr + EndPage_txb); 547037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 548037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 549037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case 24: 550037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p24rx_mask, ofsAddr + RX_mask); 551037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p24tx_mask, ofsAddr + TX_mask); 552037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p24rx_spage + i * C320p24buf_pgno, ofsAddr + Page_rxb); 553037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(readw(ofsAddr + Page_rxb) + C320p24rx_pgno, ofsAddr + EndPage_rxb); 554037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p24tx_spage + i * C320p24buf_pgno, ofsAddr + Page_txb); 555037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(readw(ofsAddr + Page_txb), ofsAddr + EndPage_txb); 556037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 557037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case 32: 558037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p32rx_mask, ofsAddr + RX_mask); 559037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p32tx_mask, ofsAddr + TX_mask); 560037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p32tx_ofs, ofsAddr + Ofs_txb); 561037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p32rx_spage + i * C320p32buf_pgno, ofsAddr + Page_rxb); 562037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(readb(ofsAddr + Page_rxb), ofsAddr + EndPage_rxb); 563037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p32tx_spage + i * C320p32buf_pgno, ofsAddr + Page_txb); 564037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(readw(ofsAddr + Page_txb), ofsAddr + EndPage_txb); 565037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 566037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 567037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 568037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 569037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 570037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return 0; 571037182346f0991683cc7320a257c3f6089432ceeJiri Slaby} 572037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 573037182346f0991683cc7320a257c3f6089432ceeJiri Slabystatic int moxa_load_fw(struct moxa_board_conf *brd, const struct firmware *fw) 574037182346f0991683cc7320a257c3f6089432ceeJiri Slaby{ 575037182346f0991683cc7320a257c3f6089432ceeJiri Slaby void *ptr = fw->data; 576037182346f0991683cc7320a257c3f6089432ceeJiri Slaby char rsn[64]; 577037182346f0991683cc7320a257c3f6089432ceeJiri Slaby u16 lens[5]; 578037182346f0991683cc7320a257c3f6089432ceeJiri Slaby size_t len; 579037182346f0991683cc7320a257c3f6089432ceeJiri Slaby unsigned int a, lenp, lencnt; 580037182346f0991683cc7320a257c3f6089432ceeJiri Slaby int ret = -EINVAL; 581037182346f0991683cc7320a257c3f6089432ceeJiri Slaby struct { 582037182346f0991683cc7320a257c3f6089432ceeJiri Slaby __le32 magic; /* 0x34303430 */ 583037182346f0991683cc7320a257c3f6089432ceeJiri Slaby u8 reserved1[2]; 584037182346f0991683cc7320a257c3f6089432ceeJiri Slaby u8 type; /* UNIX = 3 */ 585037182346f0991683cc7320a257c3f6089432ceeJiri Slaby u8 model; /* C218T=1, C320T=2, CP204=3 */ 586037182346f0991683cc7320a257c3f6089432ceeJiri Slaby u8 reserved2[8]; 587037182346f0991683cc7320a257c3f6089432ceeJiri Slaby __le16 len[5]; 588037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } *hdr = ptr; 589037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 590037182346f0991683cc7320a257c3f6089432ceeJiri Slaby BUILD_BUG_ON(ARRAY_SIZE(hdr->len) != ARRAY_SIZE(lens)); 591037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 592037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (fw->size < MOXA_FW_HDRLEN) { 593037182346f0991683cc7320a257c3f6089432ceeJiri Slaby strcpy(rsn, "too short (even header won't fit)"); 594037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 595037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 596037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (hdr->magic != cpu_to_le32(0x30343034)) { 597037182346f0991683cc7320a257c3f6089432ceeJiri Slaby sprintf(rsn, "bad magic: %.8x", le32_to_cpu(hdr->magic)); 598037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 599037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 600037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (hdr->type != 3) { 601037182346f0991683cc7320a257c3f6089432ceeJiri Slaby sprintf(rsn, "not for linux, type is %u", hdr->type); 602037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 603037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 604037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (moxa_check_fw_model(brd, hdr->model)) { 605037182346f0991683cc7320a257c3f6089432ceeJiri Slaby sprintf(rsn, "not for this card, model is %u", hdr->model); 606037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 607037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 608037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 609037182346f0991683cc7320a257c3f6089432ceeJiri Slaby len = MOXA_FW_HDRLEN; 610037182346f0991683cc7320a257c3f6089432ceeJiri Slaby lencnt = hdr->model == 2 ? 5 : 3; 611037182346f0991683cc7320a257c3f6089432ceeJiri Slaby for (a = 0; a < ARRAY_SIZE(lens); a++) { 612037182346f0991683cc7320a257c3f6089432ceeJiri Slaby lens[a] = le16_to_cpu(hdr->len[a]); 613037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (lens[a] && len + lens[a] <= fw->size && 614037182346f0991683cc7320a257c3f6089432ceeJiri Slaby moxa_check_fw(&fw->data[len])) 615037182346f0991683cc7320a257c3f6089432ceeJiri Slaby printk(KERN_WARNING "moxa firmware: unexpected input " 616037182346f0991683cc7320a257c3f6089432ceeJiri Slaby "at offset %u, but going on\n", (u32)len); 617037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (!lens[a] && a < lencnt) { 618037182346f0991683cc7320a257c3f6089432ceeJiri Slaby sprintf(rsn, "too few entries in fw file"); 619037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 620037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 621037182346f0991683cc7320a257c3f6089432ceeJiri Slaby len += lens[a]; 622037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 623037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 624037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (len != fw->size) { 625037182346f0991683cc7320a257c3f6089432ceeJiri Slaby sprintf(rsn, "bad length: %u (should be %u)", (u32)fw->size, 626037182346f0991683cc7320a257c3f6089432ceeJiri Slaby (u32)len); 627037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 628037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 629037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 630037182346f0991683cc7320a257c3f6089432ceeJiri Slaby ptr += MOXA_FW_HDRLEN; 631037182346f0991683cc7320a257c3f6089432ceeJiri Slaby lenp = 0; /* bios */ 632037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 633037182346f0991683cc7320a257c3f6089432ceeJiri Slaby strcpy(rsn, "read above"); 634037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 635037182346f0991683cc7320a257c3f6089432ceeJiri Slaby ret = moxa_load_bios(brd, ptr, lens[lenp]); 636037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (ret) 637037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 638037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 639037182346f0991683cc7320a257c3f6089432ceeJiri Slaby /* we skip the tty section (lens[1]), since we don't need it */ 640037182346f0991683cc7320a257c3f6089432ceeJiri Slaby ptr += lens[lenp] + lens[lenp + 1]; 641037182346f0991683cc7320a257c3f6089432ceeJiri Slaby lenp += 2; /* comm */ 642037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 643037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (hdr->model == 2) { 644037182346f0991683cc7320a257c3f6089432ceeJiri Slaby ret = moxa_load_320b(brd, ptr, lens[lenp]); 645037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (ret) 646037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 647037182346f0991683cc7320a257c3f6089432ceeJiri Slaby /* skip another tty */ 648037182346f0991683cc7320a257c3f6089432ceeJiri Slaby ptr += lens[lenp] + lens[lenp + 1]; 649037182346f0991683cc7320a257c3f6089432ceeJiri Slaby lenp += 2; 650037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 651037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 652037182346f0991683cc7320a257c3f6089432ceeJiri Slaby ret = moxa_load_code(brd, ptr, lens[lenp]); 653037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (ret) 654037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 655037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 656037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return 0; 657037182346f0991683cc7320a257c3f6089432ceeJiri Slabyerr: 658037182346f0991683cc7320a257c3f6089432ceeJiri Slaby printk(KERN_ERR "firmware failed to load, reason: %s\n", rsn); 659037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return ret; 660037182346f0991683cc7320a257c3f6089432ceeJiri Slaby} 661037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 662037182346f0991683cc7320a257c3f6089432ceeJiri Slabystatic int moxa_init_board(struct moxa_board_conf *brd, struct device *dev) 663037182346f0991683cc7320a257c3f6089432ceeJiri Slaby{ 664037182346f0991683cc7320a257c3f6089432ceeJiri Slaby const struct firmware *fw; 665037182346f0991683cc7320a257c3f6089432ceeJiri Slaby const char *file; 666810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby struct moxa_port *p; 667810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby unsigned int i; 668037182346f0991683cc7320a257c3f6089432ceeJiri Slaby int ret; 669037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 670810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby brd->ports = kcalloc(MAX_PORTS_PER_BOARD, sizeof(*brd->ports), 671810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby GFP_KERNEL); 672810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby if (brd->ports == NULL) { 673810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby printk(KERN_ERR "cannot allocate memory for ports\n"); 674810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby ret = -ENOMEM; 675810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby goto err; 676810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby } 677810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby 678810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby for (i = 0, p = brd->ports; i < MAX_PORTS_PER_BOARD; i++, p++) { 679810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby p->type = PORT_16550A; 680810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby p->close_delay = 5 * HZ / 10; 681810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby p->cflag = B9600 | CS8 | CREAD | CLOCAL | HUPCL; 682810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby init_waitqueue_head(&p->open_wait); 683810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby init_completion(&p->close_wait); 684810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby 685810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby setup_timer(&p->emptyTimer, moxa_check_xmit_empty, 686810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby (unsigned long)p); 687810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby } 688810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby 689037182346f0991683cc7320a257c3f6089432ceeJiri Slaby switch (brd->boardType) { 690037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_C218_ISA: 691037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_C218_PCI: 692037182346f0991683cc7320a257c3f6089432ceeJiri Slaby file = "c218tunx.cod"; 693037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 694037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_CP204J: 695037182346f0991683cc7320a257c3f6089432ceeJiri Slaby file = "cp204unx.cod"; 696037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 697037182346f0991683cc7320a257c3f6089432ceeJiri Slaby default: 698037182346f0991683cc7320a257c3f6089432ceeJiri Slaby file = "c320tunx.cod"; 699037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 700037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 701037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 702037182346f0991683cc7320a257c3f6089432ceeJiri Slaby ret = request_firmware(&fw, file, dev); 703037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (ret) { 704037182346f0991683cc7320a257c3f6089432ceeJiri Slaby printk(KERN_ERR "request_firmware failed\n"); 705810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby goto err_free; 706037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 707037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 708037182346f0991683cc7320a257c3f6089432ceeJiri Slaby ret = moxa_load_fw(brd, fw); 709037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 710037182346f0991683cc7320a257c3f6089432ceeJiri Slaby release_firmware(fw); 711810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby 712810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby if (ret) 713810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby goto err_free; 714810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby 715810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby brd->ready = 1; 716810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby 7170bcc4caadc8f5396b52950ee03c67b76875602dfJiri Slaby if (!timer_pending(&moxaTimer)) 7180bcc4caadc8f5396b52950ee03c67b76875602dfJiri Slaby mod_timer(&moxaTimer, jiffies + HZ / 50); 7190bcc4caadc8f5396b52950ee03c67b76875602dfJiri Slaby 720810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby return 0; 721810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slabyerr_free: 722810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby kfree(brd->ports); 723810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slabyerr: 724037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return ret; 725037182346f0991683cc7320a257c3f6089432ceeJiri Slaby} 726037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 727810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slabystatic void moxa_board_deinit(struct moxa_board_conf *brd) 728810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby{ 729810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby unsigned int i; 730810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby 731810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby brd->ready = 0; 732810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby for (i = 0; i < MAX_PORTS_PER_BOARD; i++) 733810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby del_timer_sync(&brd->ports[i].emptyTimer); 734810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby 735810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby iounmap(brd->basemem); 736810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby brd->basemem = NULL; 737810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby kfree(brd->ports); 738810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby} 739810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby 7401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PCI 7419cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slabystatic int __devinit moxa_pci_probe(struct pci_dev *pdev, 7429cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby const struct pci_device_id *ent) 7431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7449cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby struct moxa_board_conf *board; 7459cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby unsigned int i; 7469cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby int board_type = ent->driver_data; 7479cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby int retval; 7489cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby 7499cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby retval = pci_enable_device(pdev); 7507aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby if (retval) { 7517aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby dev_err(&pdev->dev, "can't enable pci device\n"); 7529cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby goto err; 7537aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby } 7549cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby 7559cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby for (i = 0; i < MAX_BOARDS; i++) 7569cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby if (moxa_boards[i].basemem == NULL) 7579cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby break; 7589cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby 7599cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby retval = -ENODEV; 7609cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby if (i >= MAX_BOARDS) { 7617aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby dev_warn(&pdev->dev, "more than %u MOXA Intellio family boards " 7629cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby "found. Board is ignored.\n", MAX_BOARDS); 7639cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby goto err; 7649cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby } 7659cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby 7669cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby board = &moxa_boards[i]; 767e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby 768e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby retval = pci_request_region(pdev, 2, "moxa-base"); 769e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby if (retval) { 770e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby dev_err(&pdev->dev, "can't request pci region 2\n"); 771e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby goto err; 772e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby } 773e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby 774e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby board->basemem = ioremap(pci_resource_start(pdev, 2), 0x4000); 7757aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby if (board->basemem == NULL) { 7767aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby dev_err(&pdev->dev, "can't remap io space 2\n"); 777e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby goto err_reg; 7787aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby } 7799cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby 7801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds board->boardType = board_type; 7811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (board_type) { 7821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_BOARD_C218_ISA: 7831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_BOARD_C218_PCI: 7841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds board->numPorts = 8; 7851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 7861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_BOARD_CP204J: 7881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds board->numPorts = 4; 7891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 7901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 7911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds board->numPorts = 0; 7921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 7931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds board->busType = MOXA_BUS_TYPE_PCI; 795a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby 796037182346f0991683cc7320a257c3f6089432ceeJiri Slaby retval = moxa_init_board(board, &pdev->dev); 797037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (retval) 798037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err_base; 799037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 8009cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby pci_set_drvdata(pdev, board); 8011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 803037182346f0991683cc7320a257c3f6089432ceeJiri Slabyerr_base: 804037182346f0991683cc7320a257c3f6089432ceeJiri Slaby iounmap(board->basemem); 805037182346f0991683cc7320a257c3f6089432ceeJiri Slaby board->basemem = NULL; 806e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slabyerr_reg: 807e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby pci_release_region(pdev, 2); 8089cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slabyerr: 8099cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby return retval; 8109cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby} 8119cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby 8129cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slabystatic void __devexit moxa_pci_remove(struct pci_dev *pdev) 8139cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby{ 8149cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby struct moxa_board_conf *brd = pci_get_drvdata(pdev); 8159cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby 816810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby moxa_board_deinit(brd); 817810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby 818e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby pci_release_region(pdev, 2); 8191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 820a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby 821a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slabystatic struct pci_driver moxa_pci_driver = { 822a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby .name = "moxa", 823a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby .id_table = moxa_pcibrds, 824a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby .probe = moxa_pci_probe, 825a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby .remove = __devexit_p(moxa_pci_remove) 826a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby}; 8271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_PCI */ 8281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init moxa_init(void) 8301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 831810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby unsigned int isabrds = 0; 832d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby int retval = 0; 8331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8347aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby printk(KERN_INFO "MOXA Intellio family driver version %s\n", 8357aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby MOXA_VERSION); 8361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver = alloc_tty_driver(MAX_PORTS + 1); 8371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!moxaDriver) 8381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 8391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->owner = THIS_MODULE; 8419b4e3b13b147e9b737de63188a9ae740eaa8c36dSergey Vlasov moxaDriver->name = "ttyMX"; 8421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->major = ttymajor; 8431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->minor_start = 0; 8441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->type = TTY_DRIVER_TYPE_SERIAL; 8451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->subtype = SERIAL_TYPE_NORMAL; 8461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->init_termios = tty_std_termios; 8471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->init_termios.c_cflag = B9600 | CS8 | CREAD | CLOCAL | HUPCL; 848606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Cox moxaDriver->init_termios.c_ispeed = 9600; 849606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Cox moxaDriver->init_termios.c_ospeed = 9600; 8501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->flags = TTY_DRIVER_REAL_RAW; 8511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_set_operations(moxaDriver, &moxa_ops); 8521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8537aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby pr_debug("Moxa tty devices major number = %d\n", ttymajor); 8541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tty_register_driver(moxaDriver)) { 8561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "Couldn't install MOXA Smartio family driver !\n"); 8571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds put_tty_driver(moxaDriver); 8581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -1; 8591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 861d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby /* Find the boards defined from module args. */ 8621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef MODULE 863d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby { 864d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby struct moxa_board_conf *brd = moxa_boards; 865810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby unsigned int i; 8661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < MAX_BOARDS; i++) { 867d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby if (!baseaddr[i]) 868d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby break; 869d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby if (type[i] == MOXA_BOARD_C218_ISA || 870d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby type[i] == MOXA_BOARD_C320_ISA) { 8717aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby pr_debug("Moxa board %2d: %s board(baseAddr=%lx)\n", 872d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby isabrds + 1, moxa_brdname[type[i] - 1], 873d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby baseaddr[i]); 874d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby brd->boardType = type[i]; 875d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby brd->numPorts = type[i] == MOXA_BOARD_C218_ISA ? 8 : 876d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby numports[i]; 877d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby brd->busType = MOXA_BUS_TYPE_ISA; 878d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby brd->basemem = ioremap(baseaddr[i], 0x4000); 879d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby if (!brd->basemem) { 880d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby printk(KERN_ERR "moxa: can't remap %lx\n", 881d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby baseaddr[i]); 8821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 8831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 884037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (moxa_init_board(brd, NULL)) { 885037182346f0991683cc7320a257c3f6089432ceeJiri Slaby iounmap(brd->basemem); 886037182346f0991683cc7320a257c3f6089432ceeJiri Slaby brd->basemem = NULL; 887037182346f0991683cc7320a257c3f6089432ceeJiri Slaby continue; 888037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 889d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby 890d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby brd++; 891d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby isabrds++; 8921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 894d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby } 8951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 896a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby 8971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PCI 898a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby retval = pci_register_driver(&moxa_pci_driver); 899a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby if (retval) { 900a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby printk(KERN_ERR "Can't register moxa pci driver!\n"); 901d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby if (isabrds) 902a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby retval = 0; 9031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 905a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby 906a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby return retval; 9071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __exit moxa_exit(void) 9101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 9121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 913c251ae0d7514563c7fdace0d390175454761228bJiri Slaby del_timer_sync(&moxaTimer); 9141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tty_unregister_driver(moxaDriver)) 9167aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby printk(KERN_ERR "Couldn't unregister MOXA Intellio family " 9177aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby "serial driver\n"); 9181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds put_tty_driver(moxaDriver); 91986fbf1486a44a4bce4fdcbe3665a7d8a62ba958aJiri Slaby 9209cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby#ifdef CONFIG_PCI 921a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby pci_unregister_driver(&moxa_pci_driver); 9229cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby#endif 923a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby 924810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby for (i = 0; i < MAX_BOARDS; i++) /* ISA boards */ 925810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby if (moxa_boards[i].ready) 926810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby moxa_board_deinit(&moxa_boards[i]); 9271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_init(moxa_init); 9301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_exit(moxa_exit); 9311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_open(struct tty_struct *tty, struct file *filp) 9331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 934810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby struct moxa_board_conf *brd; 9358f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch; 9361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int port; 9371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int retval; 9381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 93911324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby port = tty->index; 9401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port == MAX_PORTS) { 9411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 9421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 943810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby brd = &moxa_boards[port / MAX_PORTS_PER_BOARD]; 944810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby if (!brd->ready) 945810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby return -ENODEV; 9461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 947810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby ch = &brd->ports[port % MAX_PORTS_PER_BOARD]; 9481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->count++; 9491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty->driver_data = ch; 9501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->tty = tty; 9511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(ch->asyncflags & ASYNC_INITIALIZED)) { 9521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags = 0; 953db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox moxa_set_tty_param(tty, tty->termios); 954b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortLineCtrl(ch, 1, 1); 955b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortEnable(ch); 9561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags |= ASYNC_INITIALIZED; 9571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9586f56b658b4e5c4486641ce62f331150954c4de37Jiri Slaby retval = moxa_block_till_ready(tty, filp, ch); 9591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxa_unthrottle(tty); 9611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->type == PORT_16550A) { 963b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaSetFifo(ch, 1); 9641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 965b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaSetFifo(ch, 0); 9661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (retval); 9691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_close(struct tty_struct *tty, struct file *filp) 9721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9738f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch; 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int port; 9751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 97611324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby port = tty->index; 9771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port == MAX_PORTS) { 9781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 9791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tty->driver_data == NULL) { 9811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 9821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tty_hung_up_p(filp)) { 9841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 9851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9868f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ch = (struct moxa_port *) tty->driver_data; 9871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((tty->count == 1) && (ch->count != 1)) { 9897aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby printk(KERN_WARNING "moxa_close: bad serial port count; " 9907aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby "tty->count is 1, ch->count is %d\n", ch->count); 9911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->count = 1; 9921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (--ch->count < 0) { 9947aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby printk(KERN_WARNING "moxa_close: bad serial port count, " 9957aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby "device=%s\n", tty->name); 9961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->count = 0; 9971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->count) { 9991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 10001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags |= ASYNC_CLOSING; 10021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->cflag = tty->termios->c_cflag; 10041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->asyncflags & ASYNC_INITIALIZED) { 10056f56b658b4e5c4486641ce62f331150954c4de37Jiri Slaby moxa_setup_empty_event(tty); 10061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_wait_until_sent(tty, 30 * HZ); /* 30 seconds timeout */ 1007b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby del_timer_sync(&ch->emptyTimer); 10081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10096f56b658b4e5c4486641ce62f331150954c4de37Jiri Slaby moxa_shut_down(ch); 1010b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortFlushData(ch, 2); 10111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tty->driver->flush_buffer) 10131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty->driver->flush_buffer(tty); 10141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_ldisc_flush(tty); 10151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty->closing = 0; 10171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->tty = NULL; 10181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->blocked_open) { 10191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->close_delay) { 10201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds msleep_interruptible(jiffies_to_msecs(ch->close_delay)); 10211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wake_up_interruptible(&ch->open_wait); 10231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING); 102595e0791480af8347460d0cbe34a46eca7e77d0d0Jiri Slaby complete_all(&ch->close_wait); 10261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_write(struct tty_struct *tty, 10291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const unsigned char *buf, int count) 10301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1031b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby struct moxa_port *ch = tty->driver_data; 10321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 1033b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby int len; 10341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 1036b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby return 0; 103733f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox 103833f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_lock_irqsave(&moxa_lock, flags); 1039b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby len = MoxaPortWriteData(ch, (unsigned char *) buf, count); 104033f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_unlock_irqrestore(&moxa_lock, flags); 10411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /********************************************* 10431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ( !(ch->statusflags & LOWWAIT) && 10441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ((len != count) || (MoxaPortTxFree(port) <= 100)) ) 10451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ************************************************/ 10461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags |= LOWWAIT; 10471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (len); 10481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_write_room(struct tty_struct *tty) 10511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10528f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch; 10531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tty->stopped) 10551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 1056b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby ch = tty->driver_data; 10571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 10581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 1059b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby return MoxaPortTxFree(ch); 10601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_flush_buffer(struct tty_struct *tty) 10631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1064b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby struct moxa_port *ch = tty->driver_data; 10651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 10671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 1068b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortFlushData(ch, 1); 10691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_wakeup(tty); 10701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_chars_in_buffer(struct tty_struct *tty) 10731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1074b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby struct moxa_port *ch = tty->driver_data; 10751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int chars; 10761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 10781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Sigh...I have to check if driver_data is NULL here, because 10791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * if an open() fails, the TTY subsystem eventually calls 10801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * tty_wait_until_sent(), which calls the driver's chars_in_buffer() 10811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * routine. And since the open() failed, we return 0 here. TDJ 10821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 10841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 1085b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby chars = MoxaPortTxQueue(ch); 10861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (chars) { 10871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 10881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Make it possible to wakeup anything waiting for output 10891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * in tty_ioctl.c, etc. 10901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(ch->statusflags & EMPTYWAIT)) 10926f56b658b4e5c4486641ce62f331150954c4de37Jiri Slaby moxa_setup_empty_event(tty); 10931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (chars); 10951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_flush_chars(struct tty_struct *tty) 10981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 11001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Don't think I need this, because this is called to empty the TX 11011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * buffer for the 16450, 16550, etc. 11021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_put_char(struct tty_struct *tty, unsigned char c) 11061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1107b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby struct moxa_port *ch = tty->driver_data; 11081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 11091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 11111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 111233f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_lock_irqsave(&moxa_lock, flags); 1113b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortWriteData(ch, &c, 1); 111433f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_unlock_irqrestore(&moxa_lock, flags); 11151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /************************************************ 11161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ( !(ch->statusflags & LOWWAIT) && (MoxaPortTxFree(port) <= 100) ) 11171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *************************************************/ 11181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags |= LOWWAIT; 11191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_tiocmget(struct tty_struct *tty, struct file *file) 11221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1123b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby struct moxa_port *ch = tty->driver_data; 11241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int flag = 0, dtr, rts; 11251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1126b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby if ((tty->index != MAX_PORTS) && (!ch)) 11271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-EINVAL); 11281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1129b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortGetLineOut(ch, &dtr, &rts); 11301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dtr) 11311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds flag |= TIOCM_DTR; 11321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rts) 11331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds flag |= TIOCM_RTS; 1134b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby dtr = MoxaPortLineStatus(ch); 11351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dtr & 1) 11361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds flag |= TIOCM_CTS; 11371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dtr & 2) 11381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds flag |= TIOCM_DSR; 11391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dtr & 4) 11401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds flag |= TIOCM_CD; 11411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return flag; 11421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_tiocmset(struct tty_struct *tty, struct file *file, 11451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int set, unsigned int clear) 11461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1147b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby struct moxa_port *ch = tty->driver_data; 11481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int port; 11491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int dtr, rts; 11501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 115111324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby port = tty->index; 11521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((port != MAX_PORTS) && (!ch)) 11531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-EINVAL); 11541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1155b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortGetLineOut(ch, &dtr, &rts); 11561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (set & TIOCM_RTS) 11571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rts = 1; 11581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (set & TIOCM_DTR) 11591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dtr = 1; 11601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (clear & TIOCM_RTS) 11611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rts = 0; 11621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (clear & TIOCM_DTR) 11631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dtr = 0; 1164b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortLineCtrl(ch, dtr, rts); 11651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 11661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_ioctl(struct tty_struct *tty, struct file *file, 11691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int cmd, unsigned long arg) 11701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1171b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby struct moxa_port *ch = tty->driver_data; 11721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds register int port; 11731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __user *argp = (void __user *)arg; 11741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int retval; 11751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 117611324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby port = tty->index; 11771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((port != MAX_PORTS) && (!ch)) 11781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-EINVAL); 11791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (cmd) { 11811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TCSBRK: /* SVID version: non-zero arg --> no break */ 11821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retval = tty_check_change(tty); 11831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) 11841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (retval); 11856f56b658b4e5c4486641ce62f331150954c4de37Jiri Slaby moxa_setup_empty_event(tty); 11861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_wait_until_sent(tty, 0); 11871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!arg) 1188b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortSendBreak(ch, 0); 11891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 11901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TCSBRKP: /* support for POSIX tcsendbreak() */ 11911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retval = tty_check_change(tty); 11921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) 11931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (retval); 11946f56b658b4e5c4486641ce62f331150954c4de37Jiri Slaby moxa_setup_empty_event(tty); 11951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_wait_until_sent(tty, 0); 1196b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortSendBreak(ch, arg); 11971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 11981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TIOCGSOFTCAR: 11999e9fc313ffa3cb92f7f81a8e076566bc9d582351Jiri Slaby return put_user(C_CLOCAL(tty) ? 1 : 0, (int __user *)argp); 12001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TIOCSSOFTCAR: 12019e9fc313ffa3cb92f7f81a8e076566bc9d582351Jiri Slaby if (get_user(retval, (int __user *)argp)) 12021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 12031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds arg = retval; 12041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty->termios->c_cflag = ((tty->termios->c_cflag & ~CLOCAL) | 12051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (arg ? CLOCAL : 0)); 12061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (C_CLOCAL(tty)) 12071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags &= ~ASYNC_CHECK_CD; 12081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 12091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags |= ASYNC_CHECK_CD; 12101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 12111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TIOCGSERIAL: 12121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return moxa_get_serial_info(ch, argp); 12131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TIOCSSERIAL: 12151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return moxa_set_serial_info(ch, argp); 12161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 1217b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby retval = MoxaDriverIoctl(tty, cmd, arg); 12181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (retval); 12201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_throttle(struct tty_struct *tty) 12231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 12248f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch = (struct moxa_port *) tty->driver_data; 12251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags |= THROTTLE; 12271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_unthrottle(struct tty_struct *tty) 12301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 12318f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch = (struct moxa_port *) tty->driver_data; 12321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags &= ~THROTTLE; 12341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_set_termios(struct tty_struct *tty, 1237606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Cox struct ktermios *old_termios) 12381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 12398f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch = (struct moxa_port *) tty->driver_data; 12401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 12421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 1243db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox moxa_set_tty_param(tty, old_termios); 12441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(old_termios->c_cflag & CLOCAL) && 12451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (tty->termios->c_cflag & CLOCAL)) 12461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wake_up_interruptible(&ch->open_wait); 12471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_stop(struct tty_struct *tty) 12501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 12518f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch = (struct moxa_port *) tty->driver_data; 12521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 12541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 1255b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortTxDisable(ch); 12561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags |= TXSTOPPED; 12571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_start(struct tty_struct *tty) 12611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 12628f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch = (struct moxa_port *) tty->driver_data; 12631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 12651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 12661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(ch->statusflags & TXSTOPPED)) 12681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 12691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1270b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortTxEnable(ch); 12711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags &= ~TXSTOPPED; 12721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_hangup(struct tty_struct *tty) 12751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 12768f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch = (struct moxa_port *) tty->driver_data; 12771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxa_flush_buffer(tty); 12796f56b658b4e5c4486641ce62f331150954c4de37Jiri Slaby moxa_shut_down(ch); 12801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->count = 0; 12811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags &= ~ASYNC_NORMAL_ACTIVE; 12821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->tty = NULL; 12831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wake_up_interruptible(&ch->open_wait); 12841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_poll(unsigned long ignored) 12871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 12888f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch; 12890bcc4caadc8f5396b52950ee03c67b76875602dfJiri Slaby struct tty_struct *tty; 12900bcc4caadc8f5396b52950ee03c67b76875602dfJiri Slaby unsigned int card; 12910bcc4caadc8f5396b52950ee03c67b76875602dfJiri Slaby int i; 12921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds del_timer(&moxaTimer); 12941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (MoxaDriverPoll() < 0) { 1296aa7e5221fb47badbea618cc62704d6e4a4bcce15Jiri Slaby mod_timer(&moxaTimer, jiffies + HZ / 50); 12971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 12981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12990bcc4caadc8f5396b52950ee03c67b76875602dfJiri Slaby 13001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (card = 0; card < MAX_BOARDS; card++) { 13010bcc4caadc8f5396b52950ee03c67b76875602dfJiri Slaby if (!moxa_boards[card].ready) 13021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 1303810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby ch = moxa_boards[card].ports; 13040bcc4caadc8f5396b52950ee03c67b76875602dfJiri Slaby for (i = 0; i < moxa_boards[card].numPorts; i++, ch++) { 13051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((ch->asyncflags & ASYNC_INITIALIZED) == 0) 13061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 13071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(ch->statusflags & THROTTLE) && 1308b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby (MoxaPortRxQueue(ch) > 0)) 13096f56b658b4e5c4486641ce62f331150954c4de37Jiri Slaby moxa_receive_data(ch); 13100bcc4caadc8f5396b52950ee03c67b76875602dfJiri Slaby tty = ch->tty; 13110bcc4caadc8f5396b52950ee03c67b76875602dfJiri Slaby if (tty == NULL) 13121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 13131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->statusflags & LOWWAIT) { 1314b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby if (MoxaPortTxQueue(ch) <= WAKEUP_CHARS) { 13150bcc4caadc8f5396b52950ee03c67b76875602dfJiri Slaby if (!tty->stopped) { 13161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags &= ~LOWWAIT; 13170bcc4caadc8f5396b52950ee03c67b76875602dfJiri Slaby tty_wakeup(tty); 13181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13210bcc4caadc8f5396b52950ee03c67b76875602dfJiri Slaby if (!I_IGNBRK(tty) && (MoxaPortResetBrkCnt(ch) > 0)) { 13220bcc4caadc8f5396b52950ee03c67b76875602dfJiri Slaby tty_insert_flip_char(tty, 0, TTY_BREAK); 13230bcc4caadc8f5396b52950ee03c67b76875602dfJiri Slaby tty_schedule_flip(tty); 13241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1325b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby if (MoxaPortDCDChange(ch)) { 13261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->asyncflags & ASYNC_CHECK_CD) { 1327b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby if (MoxaPortDCDON(ch)) 13281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wake_up_interruptible(&ch->open_wait); 13291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else { 13300bcc4caadc8f5396b52950ee03c67b76875602dfJiri Slaby tty_hangup(tty); 1331ba196df3d6432c5c20429e8e447c5db7abedb8f3Jiri Slaby wake_up_interruptible(&ch->open_wait); 1332ba196df3d6432c5c20429e8e447c5db7abedb8f3Jiri Slaby ch->asyncflags &= ~ASYNC_NORMAL_ACTIVE; 13331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1339aa7e5221fb47badbea618cc62704d6e4a4bcce15Jiri Slaby mod_timer(&moxaTimer, jiffies + HZ / 50); 13401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/******************************************************************************/ 13431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1344db1acaa632870ec87b65e062bc72ca375837a1f6Alan Coxstatic void moxa_set_tty_param(struct tty_struct *tty, struct ktermios *old_termios) 13451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1346606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Cox register struct ktermios *ts; 13478f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch; 1348db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox int rts, cts, txflow, rxflow, xany, baud; 13491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13508f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ch = (struct moxa_port *) tty->driver_data; 13511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ts = tty->termios; 13521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ts->c_cflag & CLOCAL) 13531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags &= ~ASYNC_CHECK_CD; 13541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 13551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags |= ASYNC_CHECK_CD; 13561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rts = cts = txflow = rxflow = xany = 0; 13571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ts->c_cflag & CRTSCTS) 13581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rts = cts = 1; 13591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ts->c_iflag & IXON) 13601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds txflow = 1; 13611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ts->c_iflag & IXOFF) 13621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rxflow = 1; 13631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ts->c_iflag & IXANY) 13641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds xany = 1; 1365db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox 1366db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox /* Clear the features we don't support */ 1367db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox ts->c_cflag &= ~CMSPAR; 1368b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortFlowCtrl(ch, rts, cts, txflow, rxflow, xany); 1369b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby baud = MoxaPortSetTermio(ch, ts, tty_get_baud_rate(tty)); 1370db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox if (baud == -1) 1371db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox baud = tty_termios_baud_rate(old_termios); 1372db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox /* Not put the baud rate into the termios data */ 1373db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox tty_encode_baud_rate(tty, baud, baud); 13741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13766f56b658b4e5c4486641ce62f331150954c4de37Jiri Slabystatic int moxa_block_till_ready(struct tty_struct *tty, struct file *filp, 13778f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch) 13781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 13791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds DECLARE_WAITQUEUE(wait,current); 13801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 13811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int retval; 13821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int do_clocal = C_CLOCAL(tty); 13831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * If the device is in the middle of being closed, then block 13861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * until it's done, and then try again. 13871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tty_hung_up_p(filp) || (ch->asyncflags & ASYNC_CLOSING)) { 13891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->asyncflags & ASYNC_CLOSING) 139095e0791480af8347460d0cbe34a46eca7e77d0d0Jiri Slaby wait_for_completion_interruptible(&ch->close_wait); 13911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef SERIAL_DO_RESTART 13921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->asyncflags & ASYNC_HUP_NOTIFY) 13931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-EAGAIN); 13941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 13951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-ERESTARTSYS); 13961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 13971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-EAGAIN); 13981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 13991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 14011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * If non-blocking mode is set, then make the check up front 14021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and then exit. 14031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (filp->f_flags & O_NONBLOCK) { 14051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags |= ASYNC_NORMAL_ACTIVE; 14061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 14071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 14091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Block waiting for the carrier detect and the line to become free 14101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retval = 0; 14121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds add_wait_queue(&ch->open_wait, &wait); 14137aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby pr_debug("block_til_ready before block: ttys%d, count = %d\n", 1414b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby tty->index, ch->count); 141533f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_lock_irqsave(&moxa_lock, flags); 14161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!tty_hung_up_p(filp)) 14171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->count--; 14181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->blocked_open++; 141933f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_unlock_irqrestore(&moxa_lock, flags); 142033f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox 14211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (1) { 14221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_current_state(TASK_INTERRUPTIBLE); 14231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tty_hung_up_p(filp) || 14241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds !(ch->asyncflags & ASYNC_INITIALIZED)) { 14251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef SERIAL_DO_RESTART 14261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->asyncflags & ASYNC_HUP_NOTIFY) 14271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retval = -EAGAIN; 14281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 14291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retval = -ERESTARTSYS; 14301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 14311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retval = -EAGAIN; 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 14331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(ch->asyncflags & ASYNC_CLOSING) && (do_clocal || 1436b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortDCDON(ch))) 14371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (signal_pending(current)) { 14401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retval = -ERESTARTSYS; 14411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds schedule(); 14441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_current_state(TASK_RUNNING); 14461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds remove_wait_queue(&ch->open_wait, &wait); 144733f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox 144833f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_lock_irqsave(&moxa_lock, flags); 14491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!tty_hung_up_p(filp)) 14501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->count++; 14511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->blocked_open--; 145233f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_unlock_irqrestore(&moxa_lock, flags); 14537aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby pr_debug("block_til_ready after blocking: ttys%d, count = %d\n", 1454b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby tty->index, ch->count); 14551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) 14561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (retval); 145733f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox /* FIXME: review to see if we need to use set_bit on these */ 14581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags |= ASYNC_NORMAL_ACTIVE; 145933f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox return 0; 14601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14626f56b658b4e5c4486641ce62f331150954c4de37Jiri Slabystatic void moxa_setup_empty_event(struct tty_struct *tty) 14631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 14648f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch = tty->driver_data; 14651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 14661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 146733f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_lock_irqsave(&moxa_lock, flags); 14681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags |= EMPTYWAIT; 1469b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby mod_timer(&ch->emptyTimer, jiffies + HZ); 147033f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_unlock_irqrestore(&moxa_lock, flags); 14711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14736f56b658b4e5c4486641ce62f331150954c4de37Jiri Slabystatic void moxa_check_xmit_empty(unsigned long data) 14741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 14758f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch; 14761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14778f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ch = (struct moxa_port *) data; 14781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->tty && (ch->statusflags & EMPTYWAIT)) { 1479b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby if (MoxaPortTxQueue(ch) == 0) { 14801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags &= ~EMPTYWAIT; 14811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_wakeup(ch->tty); 14821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 14831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1484b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby mod_timer(&ch->emptyTimer, round_jiffies(jiffies + HZ)); 14851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 14861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags &= ~EMPTYWAIT; 14871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14896f56b658b4e5c4486641ce62f331150954c4de37Jiri Slabystatic void moxa_shut_down(struct moxa_port *ch) 14901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 14911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct tty_struct *tp; 14921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(ch->asyncflags & ASYNC_INITIALIZED)) 14941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 14951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tp = ch->tty; 14971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1498b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortDisable(ch); 14991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 15011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * If we're a modem control device and HUPCL is on, drop RTS & DTR. 15021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 15031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tp->termios->c_cflag & HUPCL) 1504b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortLineCtrl(ch, 0, 0); 15051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags &= ~ASYNC_INITIALIZED; 15071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15096f56b658b4e5c4486641ce62f331150954c4de37Jiri Slabystatic void moxa_receive_data(struct moxa_port *ch) 15101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 15111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct tty_struct *tp; 1512606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Cox struct ktermios *ts; 15131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 15141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ts = NULL; 15161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tp = ch->tty; 15171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tp) 15181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ts = tp->termios; 15191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /************************************************** 1520037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if ( !tp || !ts || !(ts->c_cflag & CREAD) ) { 1521037182346f0991683cc7320a257c3f6089432ceeJiri Slaby *****************************************************/ 1522037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (!tp || !ts) { 1523b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortFlushData(ch, 0); 1524037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return; 1525037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 1526037182346f0991683cc7320a257c3f6089432ceeJiri Slaby spin_lock_irqsave(&moxa_lock, flags); 1527b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortReadData(ch, tp); 1528037182346f0991683cc7320a257c3f6089432ceeJiri Slaby spin_unlock_irqrestore(&moxa_lock, flags); 1529037182346f0991683cc7320a257c3f6089432ceeJiri Slaby tty_schedule_flip(tp); 1530037182346f0991683cc7320a257c3f6089432ceeJiri Slaby} 15311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 15331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Query 15341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 15351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct mon_str { 15371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int tick; 15381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int rxcnt[MAX_PORTS]; 15391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int txcnt[MAX_PORTS]; 15401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 15411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DCD_changed 0x01 15431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DCD_oldstate 0x80 15441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxaLowWaterChk; 15469dff89cd82af7bccc706fed288b1c33a51c3b937Jiri Slabystatic struct mon_str moxaLog; 15479fa372a850b9ffcb177eb9ac0b75963b2f9af233Jiri Slabystatic int moxaFuncTout = HZ / 2; 15481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxafunc(void __iomem *, int, ushort); 15506f56b658b4e5c4486641ce62f331150954c4de37Jiri Slabystatic void moxa_wait_finish(void __iomem *); 15516f56b658b4e5c4486641ce62f331150954c4de37Jiri Slabystatic void moxa_low_water_check(void __iomem *); 15521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/***************************************************************************** 15541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Driver level functions: * 15551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2. MoxaDriverIoctl(unsigned int cmd, unsigned long arg, int port); * 15561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3. MoxaDriverPoll(void); * 15571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *****************************************************************************/ 15581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA 0x400 15591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_GET_IQUEUE (MOXA + 1) /* get input buffered count */ 15601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_GET_OQUEUE (MOXA + 2) /* get output buffered count */ 15611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_GETDATACOUNT (MOXA + 23) 15621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_GET_IOQUEUE (MOXA + 27) 15631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_FLUSH_QUEUE (MOXA + 28) 15641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_GET_CONF (MOXA + 35) /* configuration */ 15651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_GET_MAJOR (MOXA + 63) 15661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_GET_CUMAJOR (MOXA + 64) 15671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_GETMSTATUS (MOXA + 65) 15681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1569b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortFlushData(struct moxa_port *port, int mode) 15701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 15711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 15721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((mode < 0) || (mode > 2)) 15731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 1574b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby ofsAddr = port->tableAddr; 15751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_FlushQueue, mode); 15761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (mode != 1) { 1577b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby port->lowChkFlag = 0; 15786f56b658b4e5c4486641ce62f331150954c4de37Jiri Slaby moxa_low_water_check(ofsAddr); 15791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1582b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaDriverIoctl(struct tty_struct *tty, unsigned int cmd, 1583b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby unsigned long arg) 15841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1585b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby struct moxa_port *port = tty->driver_data; 15861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 15871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int status; 15881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __user *argp = (void __user *)arg; 15891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1590b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby if (tty->index == MAX_PORTS) { 1591037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if ((cmd != MOXA_GET_CONF) && (cmd != MOXA_GETDATACOUNT) && 1592037182346f0991683cc7320a257c3f6089432ceeJiri Slaby (cmd != MOXA_GET_IOQUEUE) && (cmd != MOXA_GET_MAJOR) && 15931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (cmd != MOXA_GET_CUMAJOR) && (cmd != MOXA_GETMSTATUS)) 15941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-EINVAL); 15951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (cmd) { 15971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_GETDATACOUNT: 15981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaLog.tick = jiffies; 15999dff89cd82af7bccc706fed288b1c33a51c3b937Jiri Slaby if(copy_to_user(argp, &moxaLog, sizeof(struct mon_str))) 16001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 16011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 16021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_FLUSH_QUEUE: 16031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortFlushData(port, arg); 16041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 16058f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby case MOXA_GET_IOQUEUE: { 16068f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxaq_str __user *argm = argp; 1607181d6f4fac7f01ede95284954ea1231939dca0d9Jiri Slaby struct moxaq_str tmp; 1608810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby struct moxa_port *p; 1609810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby unsigned int j; 1610810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby 1611810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby for (i = 0; i < MAX_BOARDS; i++) { 1612810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby p = moxa_boards[i].ports; 1613810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby for (j = 0; j < MAX_PORTS_PER_BOARD; j++, p++, argm++) { 1614810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby memset(&tmp, 0, sizeof(tmp)); 1615810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby if (moxa_boards[i].ready) { 1616810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby tmp.inq = MoxaPortRxQueue(p); 1617810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby tmp.outq = MoxaPortTxQueue(p); 1618810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby } 1619810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby if (copy_to_user(argm, &tmp, sizeof(tmp))) 1620810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby return -EFAULT; 16211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1623810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby return 0; 16248f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby } case MOXA_GET_OQUEUE: 16251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = MoxaPortTxQueue(port); 16261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return put_user(i, (unsigned long __user *)argp); 16271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_GET_IQUEUE: 16281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = MoxaPortRxQueue(port); 16291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return put_user(i, (unsigned long __user *)argp); 16301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_GET_MAJOR: 16311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(copy_to_user(argp, &ttymajor, sizeof(int))) 16321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 16331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 16341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_GET_CUMAJOR: 16351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = 0; 16361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(copy_to_user(argp, &i, sizeof(int))) 16371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 16381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 16398f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby case MOXA_GETMSTATUS: { 16408f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct mxser_mstatus __user *argm = argp; 1641181d6f4fac7f01ede95284954ea1231939dca0d9Jiri Slaby struct mxser_mstatus tmp; 16428f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *p; 1643810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby unsigned int j; 1644810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby 1645810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby for (i = 0; i < MAX_BOARDS; i++) { 1646810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby p = moxa_boards[i].ports; 1647810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby for (j = 0; j < MAX_PORTS_PER_BOARD; j++, p++, argm++) { 1648810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby memset(&tmp, 0, sizeof(tmp)); 1649810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby if (!moxa_boards[i].ready) 1650810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby goto copy; 16518f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby 1652b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby status = MoxaPortLineStatus(p); 16531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (status & 1) 1654181d6f4fac7f01ede95284954ea1231939dca0d9Jiri Slaby tmp.cts = 1; 16551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (status & 2) 1656181d6f4fac7f01ede95284954ea1231939dca0d9Jiri Slaby tmp.dsr = 1; 16571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (status & 4) 1658181d6f4fac7f01ede95284954ea1231939dca0d9Jiri Slaby tmp.dcd = 1; 16591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1660810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby if (!p->tty || !p->tty->termios) 1661810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby tmp.cflag = p->cflag; 1662810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby else 1663810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby tmp.cflag = p->tty->termios->c_cflag; 16648f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slabycopy: 1665810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby if (copy_to_user(argm, &tmp, sizeof(tmp))) 1666810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby return -EFAULT; 1667810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby } 16681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 16701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1672037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 1673037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -ENOIOCTLCMD; 16741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16760bcc4caadc8f5396b52950ee03c67b76875602dfJiri Slabystatic int MoxaDriverPoll(void) 16771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 16788f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_board_conf *brd; 1679810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby struct moxa_port *p; 16801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 16811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ip; 16820bcc4caadc8f5396b52950ee03c67b76875602dfJiri Slaby unsigned int port, ports, card; 16830bcc4caadc8f5396b52950ee03c67b76875602dfJiri Slaby ushort temp; 16841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (card = 0; card < MAX_BOARDS; card++) { 16868f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby brd = &moxa_boards[card]; 1687810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby if (brd->ready == 0) 168801cfaf0d12ae5fa092cc916ca4066ee1598e857dDirk Eibach continue; 16898f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby if ((ports = brd->numPorts) == 0) 16901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 16918f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby if (readb(brd->intPend) == 0xff) { 16928f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ip = brd->intTable + readb(brd->intNdx); 1693810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby p = brd->ports; 16941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ports <<= 1; 16951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (port = 0; port < ports; port += 2, p++) { 1696810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby temp = readw(ip + port); 1697810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby if (temp == 0) 1698810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby continue; 1699810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby 1700810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby writew(0, ip + port); 1701810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby ofsAddr = p->tableAddr; 1702810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby if (temp & IntrTx) 1703810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby writew(readw(ofsAddr + HostStat) & 1704810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby ~WakeupTx, ofsAddr + HostStat); 1705810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby if (temp & IntrBreak) 1706810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby p->breakCnt++; 1707810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby 1708810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby if (temp & IntrLine) { 1709810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby if (readb(ofsAddr + FlagStat) & DCD_state) { 1710810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby if ((p->DCDState & DCD_oldstate) == 0) 1711810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby p->DCDState = (DCD_oldstate | 1712810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby DCD_changed); 1713810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby } else { 1714810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby if (p->DCDState & DCD_oldstate) 1715810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby p->DCDState = DCD_changed; 17161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17198f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby writeb(0, brd->intPend); 17201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (moxaLowWaterChk) { 1722810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby p = brd->ports; 17231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (port = 0; port < ports; port++, p++) { 1724810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby if (p->lowChkFlag) { 1725810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby p->lowChkFlag = 0; 1726810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby ofsAddr = p->tableAddr; 17276f56b658b4e5c4486641ce62f331150954c4de37Jiri Slaby moxa_low_water_check(ofsAddr); 17281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaLowWaterChk = 0; 17331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17340bcc4caadc8f5396b52950ee03c67b76875602dfJiri Slaby return 0; 17351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/***************************************************************************** 17381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Port level functions: * 17391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2. MoxaPortEnable(int port); * 17401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3. MoxaPortDisable(int port); * 17411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4. MoxaPortGetMaxBaud(int port); * 17421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 6. MoxaPortSetBaud(int port, long baud); * 17431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 8. MoxaPortSetTermio(int port, unsigned char *termio); * 17441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 9. MoxaPortGetLineOut(int port, int *dtrState, int *rtsState); * 17451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 10. MoxaPortLineCtrl(int port, int dtrState, int rtsState); * 17461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 11. MoxaPortFlowCtrl(int port, int rts, int cts, int rx, int tx,int xany); * 17471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 12. MoxaPortLineStatus(int port); * 17481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 13. MoxaPortDCDChange(int port); * 17491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 14. MoxaPortDCDON(int port); * 17501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15. MoxaPortFlushData(int port, int mode); * 17511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16. MoxaPortWriteData(int port, unsigned char * buffer, int length); * 175233f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox * 17. MoxaPortReadData(int port, struct tty_struct *tty); * 17531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 20. MoxaPortTxQueue(int port); * 17541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 21. MoxaPortTxFree(int port); * 17551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 22. MoxaPortRxQueue(int port); * 17561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 24. MoxaPortTxDisable(int port); * 17571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 25. MoxaPortTxEnable(int port); * 17581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 27. MoxaPortResetBrkCnt(int port); * 17591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 30. MoxaPortSendBreak(int port, int ticks); * 17601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *****************************************************************************/ 17611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 17621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Moxa Port Number Description: 17631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * MOXA serial driver supports up to 4 MOXA-C218/C320 boards. And, 17651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the port number using in MOXA driver functions will be 0 to 31 for 17661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * first MOXA board, 32 to 63 for second, 64 to 95 for third and 96 17671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to 127 for fourth. For example, if you setup three MOXA boards, 17681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * first board is C218, second board is C320-16 and third board is 17691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * C320-32. The port number of first board (C218 - 8 ports) is from 17701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 to 7. The port number of second board (C320 - 16 ports) is form 17711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 32 to 47. The port number of third board (C320 - 32 ports) is from 17721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 64 to 95. And those port numbers form 8 to 31, 48 to 63 and 96 to 17731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 127 will be invalid. 17741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Moxa Functions Description: 17771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 1: Driver initialization routine, this routine must be 17791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * called when initialized driver. 17801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 17811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaDriverInit(); 17821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 2: Moxa driver private IOCTL command processing. 17851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 17861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaDriverIoctl(unsigned int cmd, unsigned long arg, int port); 17871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * unsigned int cmd : IOCTL command 17891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * unsigned long arg : IOCTL argument 17901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 17911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 (OK) 17931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * -EINVAL 17941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * -ENOIOCTLCMD 17951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 3: Moxa driver polling process routine. 17981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 17991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaDriverPoll(void); 18001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 ; polling O.K. 18021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * -1 : no any Moxa card. 18031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 6: Enable this port to start Tx/Rx data. 18061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 18071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortEnable(int port); 18081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 18091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 7: Disable this port 18121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 18131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortDisable(int port); 18141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 18151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 8: Get the maximun available baud rate of this port. 18181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 18191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * long MoxaPortGetMaxBaud(int port); 18201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 18211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 : this port is invalid 18231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 38400/57600/115200 bps 18241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 10: Setting baud rate of this port. 18271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 18281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * long MoxaPortSetBaud(int port, long baud); 18291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 18301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * long baud : baud rate (50 - 115200) 18311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 : this port is invalid or baud < 50 18331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 50 - 115200 : the real baud rate set to the port, if 18341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the argument baud is large than maximun 18351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * available baud rate, the real setting 18361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * baud rate will be the maximun baud rate. 18371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 12: Configure the port. 18401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 1841606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Cox * int MoxaPortSetTermio(int port, struct ktermios *termio, speed_t baud); 18421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 1843606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Cox * struct ktermios * termio : termio structure pointer 1844c7bce3097c0f9bbed76ee6fd03742f2624031a45Alan Cox * speed_t baud : baud rate 18451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: -1 : this port is invalid or termio == NULL 18471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 : setting O.K. 18481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 13: Get the DTR/RTS state of this port. 18511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 18521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortGetLineOut(int port, int *dtrState, int *rtsState); 18531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 18541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int * dtrState : pointer to INT to receive the current DTR 18551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * state. (if NULL, this function will not 18561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * write to this address) 18571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int * rtsState : pointer to INT to receive the current RTS 18581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * state. (if NULL, this function will not 18591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * write to this address) 18601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: -1 : this port is invalid 18621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 : O.K. 18631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 14: Setting the DTR/RTS output state of this port. 18661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 18671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortLineCtrl(int port, int dtrState, int rtsState); 18681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 18691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int dtrState : DTR output state (0: off, 1: on) 18701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int rtsState : RTS output state (0: off, 1: on) 18711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 15: Setting the flow control of this port. 18741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 18751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortFlowCtrl(int port, int rtsFlow, int ctsFlow, int rxFlow, 18761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int txFlow,int xany); 18771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 18781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int rtsFlow : H/W RTS flow control (0: no, 1: yes) 18791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int ctsFlow : H/W CTS flow control (0: no, 1: yes) 18801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int rxFlow : S/W Rx XON/XOFF flow control (0: no, 1: yes) 18811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int txFlow : S/W Tx XON/XOFF flow control (0: no, 1: yes) 18821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int xany : S/W XANY flow control (0: no, 1: yes) 18831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 16: Get ths line status of this port 18861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 18871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortLineStatus(int port); 18881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 18891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: Bit 0 - CTS state (0: off, 1: on) 18911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Bit 1 - DSR state (0: off, 1: on) 18921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Bit 2 - DCD state (0: off, 1: on) 18931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 17: Check the DCD state has changed since the last read 18961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of this function. 18971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 18981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortDCDChange(int port); 18991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 19001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 : no changed 19021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1 : DCD has changed 19031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 18: Check ths current DCD state is ON or not. 19061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 19071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortDCDON(int port); 19081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 19091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 : DCD off 19111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1 : DCD on 19121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 19: Flush the Rx/Tx buffer data of this port. 19151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 19161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortFlushData(int port, int mode); 19171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 19181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int mode 19191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 : flush the Rx buffer 19201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1 : flush the Tx buffer 19211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2 : flush the Rx and Tx buffer 19221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 20: Write data. 19251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 19261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortWriteData(int port, unsigned char * buffer, int length); 19271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 19281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * unsigned char * buffer : pointer to write data buffer. 19291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int length : write data length 19301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 - length : real write data length 19321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 21: Read data. 19351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 193633f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox * int MoxaPortReadData(int port, struct tty_struct *tty); 19371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 193833f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox * struct tty_struct *tty : tty for data 19391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 - length : real read data length 19411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 24: Get the Tx buffer current queued data bytes 19441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 19451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortTxQueue(int port); 19461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 19471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: .. : Tx buffer current queued data bytes 19491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 25: Get the Tx buffer current free space 19521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 19531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortTxFree(int port); 19541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 19551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: .. : Tx buffer current free space 19571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 26: Get the Rx buffer current queued data bytes 19601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 19611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortRxQueue(int port); 19621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 19631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: .. : Rx buffer current queued data bytes 19651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 28: Disable port data transmission. 19681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 19691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortTxDisable(int port); 19701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 19711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 29: Enable port data transmission. 19741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 19751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortTxEnable(int port); 19761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 19771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 31: Get the received BREAK signal count and reset it. 19801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 19811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortResetBrkCnt(int port); 19821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 19831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 - .. : BREAK signal count 19851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 34: Send out a BREAK signal. 19881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 19891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortSendBreak(int port, int ms100); 19901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 19911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int ms100 : break signal time interval. 19921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * unit: 100 mini-second. if ms100 == 0, it will 19931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * send out a about 250 ms BREAK signal. 19941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 19961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1997b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortEnable(struct moxa_port *port) 19981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 20001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds short lowwater = 512; 20011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2002b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby ofsAddr = port->tableAddr; 20031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(lowwater, ofsAddr + Low_water); 2004b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby port->breakCnt = 0; 2005b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby if (port->board->boardType == MOXA_BOARD_C320_ISA || 2006b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby port->board->boardType == MOXA_BOARD_C320_PCI) { 20071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetBreakIrq, 0); 20081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 20091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(readw(ofsAddr + HostStat) | WakeupBreak, ofsAddr + HostStat); 20101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetLineIrq, Magic_code); 20131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_FlushQueue, 2); 20141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_EnableCH, Magic_code); 20161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortLineStatus(port); 20171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2019b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortDisable(struct moxa_port *port) 20201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2021b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby void __iomem *ofsAddr = port->tableAddr; 20221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetFlowCtl, 0); /* disable flow control */ 20241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_ClrLineIrq, Magic_code); 20251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0, ofsAddr + HostStat); 20261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_DisableCH, Magic_code); 20271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2029b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic long MoxaPortGetMaxBaud(struct moxa_port *port) 20301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2031b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby if (port->board->boardType == MOXA_BOARD_C320_ISA || 2032b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby port->board->boardType == MOXA_BOARD_C320_PCI) 20331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (460800L); 20341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 20351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (921600L); 20361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2039b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic long MoxaPortSetBaud(struct moxa_port *port, long baud) 20401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 20411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 20421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds long max, clock; 20431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int val; 20441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((baud < 50L) || ((max = MoxaPortGetMaxBaud(port)) == 0)) 20461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 2047b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby ofsAddr = port->tableAddr; 20481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (baud > max) 20491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds baud = max; 20501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (max == 38400L) 20511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds clock = 614400L; /* for 9.8304 Mhz : max. 38400 bps */ 20521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (max == 57600L) 20531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds clock = 691200L; /* for 11.0592 Mhz : max. 57600 bps */ 20541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 20551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds clock = 921600L; /* for 14.7456 Mhz : max. 115200 bps */ 20561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = clock / baud; 20571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetBaud, val); 20581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds baud = clock / val; 20591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (baud); 20601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2062b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortSetTermio(struct moxa_port *port, struct ktermios *termio, 2063b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby speed_t baud) 20641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 20651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 20661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tcflag_t cflag; 20671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tcflag_t mode = 0; 20681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2069b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby ofsAddr = port->tableAddr; 20701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cflag = termio->c_cflag; /* termio->c_cflag */ 20711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode = termio->c_cflag & CSIZE; 20731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (mode == CS5) 20741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode = MX_CS5; 20751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (mode == CS6) 20761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode = MX_CS6; 20771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (mode == CS7) 20781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode = MX_CS7; 20791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (mode == CS8) 20801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode = MX_CS8; 20811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (termio->c_cflag & CSTOPB) { 20831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (mode == MX_CS5) 20841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= MX_STOP15; 20851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 20861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= MX_STOP2; 20871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 20881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= MX_STOP1; 20891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (termio->c_cflag & PARENB) { 20911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (termio->c_cflag & PARODD) 20921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= MX_PARODD; 20931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 20941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= MX_PAREVEN; 20951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 20961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= MX_PARNONE; 20971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetDataMode, (ushort) mode); 20991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2100b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby if (port->board->boardType == MOXA_BOARD_C320_ISA || 2101b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby port->board->boardType == MOXA_BOARD_C320_PCI) { 2102c7bce3097c0f9bbed76ee6fd03742f2624031a45Alan Cox if (baud >= 921600L) 21031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-1); 21041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2105db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox baud = MoxaPortSetBaud(port, baud); 21061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (termio->c_iflag & (IXON | IXOFF | IXANY)) { 21081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(termio->c_cc[VSTART], ofsAddr + FuncArg); 21091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(termio->c_cc[VSTOP], ofsAddr + FuncArg1); 21101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(FC_SetXonXoff, ofsAddr + FuncCode); 21116f56b658b4e5c4486641ce62f331150954c4de37Jiri Slaby moxa_wait_finish(ofsAddr); 21121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2114db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox return (baud); 21151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2117b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortGetLineOut(struct moxa_port *port, int *dtrState, 2118b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby int *rtsState) 21191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2121b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby if (dtrState) 2122b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby *dtrState = !!(port->lineCtrl & DTR_ON); 2123b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby if (rtsState) 2124b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby *rtsState = !!(port->lineCtrl & RTS_ON); 2125b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby 21261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 21271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2129b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortLineCtrl(struct moxa_port *port, int dtr, int rts) 21301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2131b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby int mode = 0; 21321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dtr) 21341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= DTR_ON; 21351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rts) 21361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= RTS_ON; 2137b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby port->lineCtrl = mode; 2138b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby moxafunc(port->tableAddr, FC_LineControl, mode); 21391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2141b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortFlowCtrl(struct moxa_port *port, int rts, int cts, 2142b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby int txflow, int rxflow, int txany) 21431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2144b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby int mode = 0; 21451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rts) 21471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= RTS_FlowCtl; 21481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cts) 21491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= CTS_FlowCtl; 21501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (txflow) 21511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= Tx_FlowCtl; 21521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rxflow) 21531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= Rx_FlowCtl; 21541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (txany) 21551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= IXM_IXANY; 2156b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby moxafunc(port->tableAddr, FC_SetFlowCtl, mode); 21571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2159b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortLineStatus(struct moxa_port *port) 21601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 21621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val; 21631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2164b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby ofsAddr = port->tableAddr; 2165b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby if (port->board->boardType == MOXA_BOARD_C320_ISA || 2166b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby port->board->boardType == MOXA_BOARD_C320_PCI) { 21671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_LineStatus, 0); 21681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = readw(ofsAddr + FuncArg); 21691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 21701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = readw(ofsAddr + FlagStat) >> 4; 21711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val &= 0x0B; 21731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val & 8) { 21741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val |= 4; 2175b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby if ((port->DCDState & DCD_oldstate) == 0) 2176b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby port->DCDState = (DCD_oldstate | DCD_changed); 21771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 2178b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby if (port->DCDState & DCD_oldstate) 2179b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby port->DCDState = DCD_changed; 21801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val &= 7; 21821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (val); 21831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2185b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortDCDChange(struct moxa_port *port) 21861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int n; 21881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2189b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby n = port->DCDState; 2190b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby port->DCDState &= ~DCD_changed; 21911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds n &= DCD_changed; 21921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (n); 21931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2195b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortDCDON(struct moxa_port *port) 21961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int n; 21981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2199b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby if (port->DCDState & DCD_oldstate) 22001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds n = 1; 22011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 22021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds n = 0; 22031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (n); 22041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2206b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortWriteData(struct moxa_port *port, unsigned char *buffer, 2207b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby int len) 22081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 22091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int c, total, i; 22101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort tail; 22111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int cnt; 22121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort head, tx_mask, spage, epage; 22131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort pageno, pageofs, bufhead; 22141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *baseAddr, *ofsAddr, *ofs; 22151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2216b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby ofsAddr = port->tableAddr; 2217b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby baseAddr = port->board->basemem; 22181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tx_mask = readw(ofsAddr + TX_mask); 22191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spage = readw(ofsAddr + Page_txb); 22201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds epage = readw(ofsAddr + EndPage_txb); 22211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tail = readw(ofsAddr + TXwptr); 22221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds head = readw(ofsAddr + TXrptr); 22231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds c = (head > tail) ? (head - tail - 1) 22241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds : (head - tail + tx_mask); 22251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (c > len) 22261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds c = len; 2227b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby moxaLog.txcnt[port->tty->index] += c; 22281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds total = c; 22291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (spage == epage) { 22301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bufhead = readw(ofsAddr + Ofs_txb); 22311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(spage, baseAddr + Control_reg); 22321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (c > 0) { 22331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (head > tail) 22341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = head - tail - 1; 22351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 22361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = tx_mask + 1 - tail; 22371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = (c > len) ? len : c; 22381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofs = baseAddr + DynPage_addr + bufhead + tail; 22391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < len; i++) 22401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(*buffer++, ofs + i); 22411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tail = (tail + len) & tx_mask; 22421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds c -= len; 22431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(tail, ofsAddr + TXwptr); 22451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 22461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = c; 22471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageno = spage + (tail >> 13); 22481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageofs = tail & Page_mask; 22491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do { 22501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cnt = Page_size - pageofs; 22511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cnt > c) 22521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cnt = c; 22531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds c -= cnt; 22541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(pageno, baseAddr + Control_reg); 22551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofs = baseAddr + DynPage_addr + pageofs; 22561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < cnt; i++) 22571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(*buffer++, ofs + i); 22581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (c == 0) { 22591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew((tail + len) & tx_mask, ofsAddr + TXwptr); 22601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 22611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (++pageno == epage) 22631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageno = spage; 22641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageofs = 0; 22651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } while (1); 22661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(1, ofsAddr + CD180TXirq); /* start to send */ 22681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (total); 22691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2271b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortReadData(struct moxa_port *port, struct tty_struct *tty) 22721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 22731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds register ushort head, pageofs; 22741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, count, cnt, len, total, remain; 22751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort tail, rx_mask, spage, epage; 22761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort pageno, bufhead; 22771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *baseAddr, *ofsAddr, *ofs; 22781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2279b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby ofsAddr = port->tableAddr; 2280b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby baseAddr = port->board->basemem; 22811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds head = readw(ofsAddr + RXrptr); 22821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tail = readw(ofsAddr + RXwptr); 22831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rx_mask = readw(ofsAddr + RX_mask); 22841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spage = readw(ofsAddr + Page_rxb); 22851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds epage = readw(ofsAddr + EndPage_rxb); 22861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count = (tail >= head) ? (tail - head) 22871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds : (tail - head + rx_mask + 1); 22881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (count == 0) 228933f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox return 0; 22901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 229133f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox total = count; 22921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds remain = count - total; 2293b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby moxaLog.rxcnt[port->tty->index] += total; 22941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count = total; 22951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (spage == epage) { 22961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bufhead = readw(ofsAddr + Ofs_rxb); 22971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(spage, baseAddr + Control_reg); 22981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (count > 0) { 22991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tail >= head) 23001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = tail - head; 23011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 23021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = rx_mask + 1 - head; 23031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = (count > len) ? len : count; 23041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofs = baseAddr + DynPage_addr + bufhead + head; 23051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < len; i++) 230633f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox tty_insert_flip_char(tty, readb(ofs + i), TTY_NORMAL); 23071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds head = (head + len) & rx_mask; 23081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count -= len; 23091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(head, ofsAddr + RXrptr); 23111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 23121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = count; 23131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageno = spage + (head >> 13); 23141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageofs = head & Page_mask; 23151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do { 23161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cnt = Page_size - pageofs; 23171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cnt > count) 23181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cnt = count; 23191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count -= cnt; 23201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(pageno, baseAddr + Control_reg); 23211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofs = baseAddr + DynPage_addr + pageofs; 23221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < cnt; i++) 232333f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox tty_insert_flip_char(tty, readb(ofs + i), TTY_NORMAL); 23241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (count == 0) { 23251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew((head + len) & rx_mask, ofsAddr + RXrptr); 23261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 23271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (++pageno == epage) 23291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageno = spage; 23301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageofs = 0; 23311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } while (1); 23321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((readb(ofsAddr + FlagStat) & Xoff_state) && (remain < LowWater)) { 23341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaLowWaterChk = 1; 2335b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby port->lowChkFlag = 1; 23361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (total); 23381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2341b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortTxQueue(struct moxa_port *port) 23421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2343b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby void __iomem *ofsAddr = port->tableAddr; 23441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort rptr, wptr, mask; 23451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int len; 23461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rptr = readw(ofsAddr + TXrptr); 23481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wptr = readw(ofsAddr + TXwptr); 23491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mask = readw(ofsAddr + TX_mask); 23501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = (wptr - rptr) & mask; 23511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (len); 23521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2354b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortTxFree(struct moxa_port *port) 23551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2356b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby void __iomem *ofsAddr = port->tableAddr; 23571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort rptr, wptr, mask; 23581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int len; 23591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rptr = readw(ofsAddr + TXrptr); 23611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wptr = readw(ofsAddr + TXwptr); 23621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mask = readw(ofsAddr + TX_mask); 23631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = mask - ((wptr - rptr) & mask); 23641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (len); 23651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2367b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortRxQueue(struct moxa_port *port) 23681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2369b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby void __iomem *ofsAddr = port->tableAddr; 23701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort rptr, wptr, mask; 23711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int len; 23721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rptr = readw(ofsAddr + RXrptr); 23741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wptr = readw(ofsAddr + RXwptr); 23751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mask = readw(ofsAddr + RX_mask); 23761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = (wptr - rptr) & mask; 23771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (len); 23781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2381b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortTxDisable(struct moxa_port *port) 23821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2383b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby moxafunc(port->tableAddr, FC_SetXoffState, Magic_code); 23841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2386b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortTxEnable(struct moxa_port *port) 23871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2388b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby moxafunc(port->tableAddr, FC_SetXonState, Magic_code); 23891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2392b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortResetBrkCnt(struct moxa_port *port) 23931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 23941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort cnt; 2395b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby cnt = port->breakCnt; 2396b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby port->breakCnt = 0; 23971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (cnt); 23981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2401b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortSendBreak(struct moxa_port *port, int ms100) 24021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2403b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby void __iomem *ofsAddr = port->tableAddr; 24041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ms100) { 24061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SendBreak, Magic_code); 240724c032f1dd393c995545ecefa8c1585ae9ef6b37Jiri Slaby msleep(ms100 * 10); 24081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 24091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SendBreak, Magic_code); 241024c032f1dd393c995545ecefa8c1585ae9ef6b37Jiri Slaby msleep(250); 24111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_StopBreak, Magic_code); 24131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24158f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slabystatic int moxa_get_serial_info(struct moxa_port *info, 24161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct serial_struct __user *retinfo) 24171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 24181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct serial_struct tmp; 24191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&tmp, 0, sizeof(tmp)); 24211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp.type = info->type; 2422b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby tmp.line = info->tty->index; 24231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp.port = 0; 24241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp.irq = 0; 24251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp.flags = info->asyncflags; 24261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp.baud_base = 921600; 24271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp.close_delay = info->close_delay; 24281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp.custom_divisor = 0; 24291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp.hub6 = 0; 24301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(copy_to_user(retinfo, &tmp, sizeof(*retinfo))) 24311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 24321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 24331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24368f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slabystatic int moxa_set_serial_info(struct moxa_port *info, 24371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct serial_struct __user *new_info) 24381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 24391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct serial_struct new_serial; 24401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(copy_from_user(&new_serial, new_info, sizeof(new_serial))) 24421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 24431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((new_serial.irq != 0) || 24451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (new_serial.port != 0) || 24461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds// (new_serial.type != info->type) || 24471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (new_serial.custom_divisor != 0) || 24481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (new_serial.baud_base != 921600)) 24491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-EPERM); 24501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_ADMIN)) { 24521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (((new_serial.flags & ~ASYNC_USR_MASK) != 24531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (info->asyncflags & ~ASYNC_USR_MASK))) 24541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-EPERM); 24551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 24561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->close_delay = new_serial.close_delay * HZ / 100; 24571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_serial.flags = (new_serial.flags & ~ASYNC_FLAGS); 24601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_serial.flags |= (info->asyncflags & ASYNC_FLAGS); 24611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (new_serial.type == PORT_16550A) { 2463b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaSetFifo(info, 1); 24641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 2465b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaSetFifo(info, 0); 24661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->type = new_serial.type; 24691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 24701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/***************************************************************************** 24751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Static local functions: * 24761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *****************************************************************************/ 24771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxafunc(void __iomem *ofsAddr, int cmd, ushort arg) 24781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 24791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(arg, ofsAddr + FuncArg); 24811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(cmd, ofsAddr + FuncCode); 24826f56b658b4e5c4486641ce62f331150954c4de37Jiri Slaby moxa_wait_finish(ofsAddr); 24831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24856f56b658b4e5c4486641ce62f331150954c4de37Jiri Slabystatic void moxa_wait_finish(void __iomem *ofsAddr) 24861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 24871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long i, j; 24881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = jiffies; 24901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (readw(ofsAddr + FuncCode) != 0) { 24911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds j = jiffies; 24921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((j - i) > moxaFuncTout) { 24931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 24941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24986f56b658b4e5c4486641ce62f331150954c4de37Jiri Slabystatic void moxa_low_water_check(void __iomem *ofsAddr) 24991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 25001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int len; 25011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort rptr, wptr, mask; 25021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readb(ofsAddr + FlagStat) & Xoff_state) { 25041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rptr = readw(ofsAddr + RXrptr); 25051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wptr = readw(ofsAddr + RXwptr); 25061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mask = readw(ofsAddr + RX_mask); 25071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = (wptr - rptr) & mask; 25081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (len <= Low_water) 25091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SendXon, 0); 25101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 25111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 25121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2513b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaSetFifo(struct moxa_port *port, int enable) 25141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2515b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby void __iomem *ofsAddr = port->tableAddr; 25161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!enable) { 25181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetRxFIFOTrig, 0); 25191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetTxFIFOCnt, 1); 25201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 25211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetRxFIFOTrig, 3); 25221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetTxFIFOCnt, 16); 25231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 25241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2525