moxa.c revision d353eca4e0480fddcb088c4692e1edba0a82eac9
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/*****************************************************************************/ 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * moxa.c -- MOXA Intellio family multiport serial driver. 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (C) 1999-2000 Moxa Technologies (support@moxa.com.tw). 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This code is loosely based on the Linux serial driver, written by 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Linus Torvalds, Theodore T'so and others. 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is free software; you can redistribute it and/or modify 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it under the terms of the GNU General Public License as published by 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the Free Software Foundation; either version 2 of the License, or 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (at your option) any later version. 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * MOXA Intellio Series Driver 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for : LINUX 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * date : 1999/1/7 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * version : 5.1 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/types.h> 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/mm.h> 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/ioport.h> 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/errno.h> 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/signal.h> 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/sched.h> 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/timer.h> 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/interrupt.h> 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/tty.h> 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/tty_flip.h> 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/major.h> 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/string.h> 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/fcntl.h> 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/ptrace.h> 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/serial.h> 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/tty_driver.h> 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/delay.h> 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/pci.h> 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/bitops.h> 4495e0791480af8347460d0cbe34a46eca7e77d0d0Jiri Slaby#include <linux/completion.h> 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/system.h> 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/io.h> 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/uaccess.h> 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5011324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby#define MOXA_VERSION "5.1k" 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5211324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby#define MOXAMAJOR 172 5311324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby#define MOXACUMAJOR 173 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5511324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby#define MAX_BOARDS 4 /* Don't change this value */ 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MAX_PORTS_PER_BOARD 32 /* Don't change this value */ 5711324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby#define MAX_PORTS (MAX_BOARDS * MAX_PORTS_PER_BOARD) 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Define the Moxa PCI vendor and device IDs. 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6211324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby#define MOXA_BUS_TYPE_ISA 0 6311324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby#define MOXA_BUS_TYPE_PCI 1 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsenum { 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MOXA_BOARD_C218_PCI = 1, 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MOXA_BOARD_C218_ISA, 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MOXA_BOARD_C320_PCI, 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MOXA_BOARD_C320_ISA, 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MOXA_BOARD_CP204J, 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic char *moxa_brdname[] = 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "C218 Turbo PCI series", 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "C218 Turbo ISA series", 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "C320 Turbo PCI series", 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "C320 Turbo ISA series", 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "CP-204J series", 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PCI 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct pci_device_id moxa_pcibrds[] = { 845ebb4078af0dab866fdf57f84f72b9e9a7e8c6b8Jiri Slaby { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C218), 855ebb4078af0dab866fdf57f84f72b9e9a7e8c6b8Jiri Slaby .driver_data = MOXA_BOARD_C218_PCI }, 865ebb4078af0dab866fdf57f84f72b9e9a7e8c6b8Jiri Slaby { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C320), 875ebb4078af0dab866fdf57f84f72b9e9a7e8c6b8Jiri Slaby .driver_data = MOXA_BOARD_C320_PCI }, 885ebb4078af0dab866fdf57f84f72b9e9a7e8c6b8Jiri Slaby { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP204J), 895ebb4078af0dab866fdf57f84f72b9e9a7e8c6b8Jiri Slaby .driver_data = MOXA_BOARD_CP204J }, 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DEVICE_TABLE(pci, moxa_pcibrds); 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_PCI */ 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 958f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slabystatic struct moxa_board_conf { 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int boardType; 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int numPorts; 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int busType; 998f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby 1008f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby int loadstat; 1018f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby 1028f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby void __iomem *basemem; 1038f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby void __iomem *intNdx; 1048f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby void __iomem *intPend; 1058f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby void __iomem *intTable; 1068f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby} moxa_boards[MAX_BOARDS]; 1078f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby 1088f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slabystruct mxser_mstatus { 1098f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby tcflag_t cflag; 1108f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby int cts; 1118f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby int dsr; 1128f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby int ri; 1138f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby int dcd; 1149dff89cd82af7bccc706fed288b1c33a51c3b937Jiri Slaby}; 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1168f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slabystruct moxaq_str { 1178f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby int inq; 1188f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby int outq; 1198f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby}; 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1218f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slabystruct moxa_port { 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int type; 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int port; 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int close_delay; 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned short closing_wait; 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int count; 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int blocked_open; 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds long event; /* long req'd for set_bit --RR */ 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int asyncflags; 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long statusflags; 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct tty_struct *tty; 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int cflag; 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wait_queue_head_t open_wait; 13495e0791480af8347460d0cbe34a46eca7e77d0d0Jiri Slaby struct completion close_wait; 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1368f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct timer_list emptyTimer; 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1388f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby char chkPort; 1398f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby char lineCtrl; 1408f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby void __iomem *tableAddr; 1418f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby long curBaud; 1428f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby char DCDState; 1438f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby char lowChkFlag; 1448f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby 1458f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ushort breakCnt; 1468f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby}; 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* statusflags */ 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXSTOPPED 0x1 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LOWWAIT 0x2 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define EMPTYWAIT 0x4 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define THROTTLE 0x8 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SERIAL_DO_RESTART 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define WAKEUP_CHARS 256 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int ttymajor = MOXAMAJOR; 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Variables for insmod */ 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef MODULE 161d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slabystatic unsigned long baseaddr[MAX_BOARDS]; 162d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slabystatic unsigned int type[MAX_BOARDS]; 163d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slabystatic unsigned int numports[MAX_BOARDS]; 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_AUTHOR("William Chen"); 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DESCRIPTION("MOXA Intellio Family Multiport Board Device Driver"); 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("GPL"); 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef MODULE 170d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slabymodule_param_array(type, uint, NULL, 0); 171d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri SlabyMODULE_PARM_DESC(type, "card type: C218=2, C320=4"); 172d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slabymodule_param_array(baseaddr, ulong, NULL, 0); 173d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri SlabyMODULE_PARM_DESC(baseaddr, "base address"); 174d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slabymodule_param_array(numports, uint, NULL, 0); 175d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri SlabyMODULE_PARM_DESC(numports, "numports (ignored for C218)"); 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_param(ttymajor, int, 0); 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * static functions: 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_open(struct tty_struct *, struct file *); 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_close(struct tty_struct *, struct file *); 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_write(struct tty_struct *, const unsigned char *, int); 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_write_room(struct tty_struct *); 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_flush_buffer(struct tty_struct *); 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_chars_in_buffer(struct tty_struct *); 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_flush_chars(struct tty_struct *); 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_put_char(struct tty_struct *, unsigned char); 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_ioctl(struct tty_struct *, struct file *, unsigned int, unsigned long); 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_throttle(struct tty_struct *); 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_unthrottle(struct tty_struct *); 193606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Coxstatic void moxa_set_termios(struct tty_struct *, struct ktermios *); 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_stop(struct tty_struct *); 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_start(struct tty_struct *); 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_hangup(struct tty_struct *); 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_tiocmget(struct tty_struct *tty, struct file *file); 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_tiocmset(struct tty_struct *tty, struct file *file, 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int set, unsigned int clear); 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_poll(unsigned long); 201db1acaa632870ec87b65e062bc72ca375837a1f6Alan Coxstatic void moxa_set_tty_param(struct tty_struct *, struct ktermios *); 2026f56b658b4e5c4486641ce62f331150954c4de37Jiri Slabystatic int moxa_block_till_ready(struct tty_struct *, struct file *, 2038f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *); 2046f56b658b4e5c4486641ce62f331150954c4de37Jiri Slabystatic void moxa_setup_empty_event(struct tty_struct *); 2056f56b658b4e5c4486641ce62f331150954c4de37Jiri Slabystatic void moxa_check_xmit_empty(unsigned long); 2066f56b658b4e5c4486641ce62f331150954c4de37Jiri Slabystatic void moxa_shut_down(struct moxa_port *); 2076f56b658b4e5c4486641ce62f331150954c4de37Jiri Slabystatic void moxa_receive_data(struct moxa_port *); 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * moxa board interface functions: 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void MoxaDriverInit(void); 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int MoxaDriverIoctl(unsigned int, unsigned long, int); 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int MoxaDriverPoll(void); 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int MoxaPortsOfCard(int); 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int MoxaPortIsValid(int); 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void MoxaPortEnable(int); 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void MoxaPortDisable(int); 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic long MoxaPortGetMaxBaud(int); 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic long MoxaPortSetBaud(int, long); 220606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Coxstatic int MoxaPortSetTermio(int, struct ktermios *, speed_t); 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int MoxaPortGetLineOut(int, int *, int *); 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void MoxaPortLineCtrl(int, int, int); 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void MoxaPortFlowCtrl(int, int, int, int, int, int); 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int MoxaPortLineStatus(int); 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int MoxaPortDCDChange(int); 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int MoxaPortDCDON(int); 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void MoxaPortFlushData(int, int); 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int MoxaPortWriteData(int, unsigned char *, int); 22933f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Coxstatic int MoxaPortReadData(int, struct tty_struct *tty); 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int MoxaPortTxQueue(int); 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int MoxaPortRxQueue(int); 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int MoxaPortTxFree(int); 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void MoxaPortTxDisable(int); 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void MoxaPortTxEnable(int); 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int MoxaPortResetBrkCnt(int); 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void MoxaPortSendBreak(int, int); 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 *); 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void MoxaSetFifo(int port, int enable); 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 241b68e31d0ebbcc909d1941f9f230c9d062a3a13d3Jeff Dikestatic const struct tty_operations moxa_ops = { 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .open = moxa_open, 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .close = moxa_close, 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .write = moxa_write, 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .write_room = moxa_write_room, 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .flush_buffer = moxa_flush_buffer, 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .chars_in_buffer = moxa_chars_in_buffer, 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .flush_chars = moxa_flush_chars, 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .put_char = moxa_put_char, 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .ioctl = moxa_ioctl, 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .throttle = moxa_throttle, 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .unthrottle = moxa_unthrottle, 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .set_termios = moxa_set_termios, 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .stop = moxa_stop, 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .start = moxa_start, 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .hangup = moxa_hangup, 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .tiocmget = moxa_tiocmget, 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .tiocmset = moxa_tiocmset, 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 261aa7e5221fb47badbea618cc62704d6e4a4bcce15Jiri Slabystatic struct tty_driver *moxaDriver; 2628f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slabystatic struct moxa_port moxa_ports[MAX_PORTS]; 263aa7e5221fb47badbea618cc62704d6e4a4bcce15Jiri Slabystatic DEFINE_TIMER(moxaTimer, moxa_poll, 0, 0); 26434af946a22724c4e2b204957f2b24b22a0fb121cIngo Molnarstatic DEFINE_SPINLOCK(moxa_lock); 26533f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PCI 2679cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slabystatic int __devinit moxa_pci_probe(struct pci_dev *pdev, 2689cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby const struct pci_device_id *ent) 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2709cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby struct moxa_board_conf *board; 2719cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby unsigned int i; 2729cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby int board_type = ent->driver_data; 2739cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby int retval; 2749cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby 2759cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby retval = pci_enable_device(pdev); 2767aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby if (retval) { 2777aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby dev_err(&pdev->dev, "can't enable pci device\n"); 2789cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby goto err; 2797aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby } 2809cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby 2819cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby for (i = 0; i < MAX_BOARDS; i++) 2829cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby if (moxa_boards[i].basemem == NULL) 2839cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby break; 2849cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby 2859cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby retval = -ENODEV; 2869cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby if (i >= MAX_BOARDS) { 2877aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby dev_warn(&pdev->dev, "more than %u MOXA Intellio family boards " 2889cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby "found. Board is ignored.\n", MAX_BOARDS); 2899cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby goto err; 2909cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby } 2919cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby 2929cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby board = &moxa_boards[i]; 2939cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby board->basemem = pci_iomap(pdev, 2, 0x4000); 2947aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby if (board->basemem == NULL) { 2957aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby dev_err(&pdev->dev, "can't remap io space 2\n"); 2969cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby goto err; 2977aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby } 2989cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds board->boardType = board_type; 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (board_type) { 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_BOARD_C218_ISA: 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_BOARD_C218_PCI: 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds board->numPorts = 8; 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_BOARD_CP204J: 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds board->numPorts = 4; 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds board->numPorts = 0; 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds board->busType = MOXA_BUS_TYPE_PCI; 314a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby 3159cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby pci_set_drvdata(pdev, board); 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 3189cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slabyerr: 3199cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby return retval; 3209cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby} 3219cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby 3229cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slabystatic void __devexit moxa_pci_remove(struct pci_dev *pdev) 3239cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby{ 3249cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby struct moxa_board_conf *brd = pci_get_drvdata(pdev); 3259cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby 3269cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby pci_iounmap(pdev, brd->basemem); 3279cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby brd->basemem = NULL; 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 329a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby 330a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slabystatic struct pci_driver moxa_pci_driver = { 331a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby .name = "moxa", 332a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby .id_table = moxa_pcibrds, 333a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby .probe = moxa_pci_probe, 334a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby .remove = __devexit_p(moxa_pci_remove) 335a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby}; 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_PCI */ 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init moxa_init(void) 3391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3408f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch; 341d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby unsigned int i, isabrds = 0; 342d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby int retval = 0; 3431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3447aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby printk(KERN_INFO "MOXA Intellio family driver version %s\n", 3457aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby MOXA_VERSION); 3461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver = alloc_tty_driver(MAX_PORTS + 1); 3471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!moxaDriver) 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->owner = THIS_MODULE; 3519b4e3b13b147e9b737de63188a9ae740eaa8c36dSergey Vlasov moxaDriver->name = "ttyMX"; 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->major = ttymajor; 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->minor_start = 0; 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->type = TTY_DRIVER_TYPE_SERIAL; 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->subtype = SERIAL_TYPE_NORMAL; 3561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->init_termios = tty_std_termios; 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->init_termios.c_cflag = B9600 | CS8 | CREAD | CLOCAL | HUPCL; 358606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Cox moxaDriver->init_termios.c_ispeed = 9600; 359606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Cox moxaDriver->init_termios.c_ospeed = 9600; 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->flags = TTY_DRIVER_REAL_RAW; 3611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_set_operations(moxaDriver, &moxa_ops); 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3638f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby for (i = 0, ch = moxa_ports; i < MAX_PORTS; i++, ch++) { 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->type = PORT_16550A; 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->port = i; 3661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->close_delay = 5 * HZ / 10; 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->closing_wait = 30 * HZ; 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->cflag = B9600 | CS8 | CREAD | CLOCAL | HUPCL; 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_waitqueue_head(&ch->open_wait); 37095e0791480af8347460d0cbe34a46eca7e77d0d0Jiri Slaby init_completion(&ch->close_wait); 3718f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby 3726f56b658b4e5c4486641ce62f331150954c4de37Jiri Slaby setup_timer(&ch->emptyTimer, moxa_check_xmit_empty, 3738f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby (unsigned long)ch); 3741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3767aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby pr_debug("Moxa tty devices major number = %d\n", ttymajor); 3771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tty_register_driver(moxaDriver)) { 3791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "Couldn't install MOXA Smartio family driver !\n"); 3801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds put_tty_driver(moxaDriver); 3811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -1; 3821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 384aa7e5221fb47badbea618cc62704d6e4a4bcce15Jiri Slaby mod_timer(&moxaTimer, jiffies + HZ / 50); 3851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 386d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby /* Find the boards defined from module args. */ 3871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef MODULE 388d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby { 389d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby struct moxa_board_conf *brd = moxa_boards; 3901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < MAX_BOARDS; i++) { 391d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby if (!baseaddr[i]) 392d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby break; 393d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby if (type[i] == MOXA_BOARD_C218_ISA || 394d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby type[i] == MOXA_BOARD_C320_ISA) { 3957aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby pr_debug("Moxa board %2d: %s board(baseAddr=%lx)\n", 396d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby isabrds + 1, moxa_brdname[type[i] - 1], 397d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby baseaddr[i]); 398d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby brd->boardType = type[i]; 399d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby brd->numPorts = type[i] == MOXA_BOARD_C218_ISA ? 8 : 400d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby numports[i]; 401d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby brd->busType = MOXA_BUS_TYPE_ISA; 402d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby brd->basemem = ioremap(baseaddr[i], 0x4000); 403d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby if (!brd->basemem) { 404d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby printk(KERN_ERR "moxa: can't remap %lx\n", 405d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby baseaddr[i]); 4061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 408d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby 409d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby brd++; 410d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby isabrds++; 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 413d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby } 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 415a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PCI 417a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby retval = pci_register_driver(&moxa_pci_driver); 418a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby if (retval) { 419a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby printk(KERN_ERR "Can't register moxa pci driver!\n"); 420d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby if (isabrds) 421a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby retval = 0; 4221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 424a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby 425a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby return retval; 4261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __exit moxa_exit(void) 4291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 4311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 432c251ae0d7514563c7fdace0d390175454761228bJiri Slaby del_timer_sync(&moxaTimer); 4331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < MAX_PORTS; i++) 4358f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby del_timer_sync(&moxa_ports[i].emptyTimer); 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tty_unregister_driver(moxaDriver)) 4387aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby printk(KERN_ERR "Couldn't unregister MOXA Intellio family " 4397aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby "serial driver\n"); 4401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds put_tty_driver(moxaDriver); 44186fbf1486a44a4bce4fdcbe3665a7d8a62ba958aJiri Slaby 4429cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby#ifdef CONFIG_PCI 443a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby pci_unregister_driver(&moxa_pci_driver); 4449cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby#endif 445a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby 446a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby for (i = 0; i < MAX_BOARDS; i++) 4478f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby if (moxa_boards[i].basemem) 4488f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby iounmap(moxa_boards[i].basemem); 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_init(moxa_init); 4521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_exit(moxa_exit); 4531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_open(struct tty_struct *tty, struct file *filp) 4551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4568f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch; 4571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int port; 4581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int retval; 4591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 46011324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby port = tty->index; 4611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port == MAX_PORTS) { 4621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 4631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!MoxaPortIsValid(port)) { 4651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty->driver_data = NULL; 4661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-ENODEV); 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4698f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ch = &moxa_ports[port]; 4701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->count++; 4711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty->driver_data = ch; 4721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->tty = tty; 4731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(ch->asyncflags & ASYNC_INITIALIZED)) { 4741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags = 0; 475db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox moxa_set_tty_param(tty, tty->termios); 4761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortLineCtrl(ch->port, 1, 1); 4771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortEnable(ch->port); 4781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags |= ASYNC_INITIALIZED; 4791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4806f56b658b4e5c4486641ce62f331150954c4de37Jiri Slaby retval = moxa_block_till_ready(tty, filp, ch); 4811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxa_unthrottle(tty); 4831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->type == PORT_16550A) { 4851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaSetFifo(ch->port, 1); 4861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 4871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaSetFifo(ch->port, 0); 4881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (retval); 4911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_close(struct tty_struct *tty, struct file *filp) 4941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4958f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch; 4961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int port; 4971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 49811324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby port = tty->index; 4991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port == MAX_PORTS) { 5001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 5011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!MoxaPortIsValid(port)) { 5037aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby pr_debug("Invalid portno in moxa_close\n"); 5041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty->driver_data = NULL; 5051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 5061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tty->driver_data == NULL) { 5081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 5091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tty_hung_up_p(filp)) { 5111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 5121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5138f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ch = (struct moxa_port *) tty->driver_data; 5141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((tty->count == 1) && (ch->count != 1)) { 5167aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby printk(KERN_WARNING "moxa_close: bad serial port count; " 5177aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby "tty->count is 1, ch->count is %d\n", ch->count); 5181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->count = 1; 5191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (--ch->count < 0) { 5217aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby printk(KERN_WARNING "moxa_close: bad serial port count, " 5227aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby "device=%s\n", tty->name); 5231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->count = 0; 5241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->count) { 5261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 5271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags |= ASYNC_CLOSING; 5291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->cflag = tty->termios->c_cflag; 5311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->asyncflags & ASYNC_INITIALIZED) { 5326f56b658b4e5c4486641ce62f331150954c4de37Jiri Slaby moxa_setup_empty_event(tty); 5331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_wait_until_sent(tty, 30 * HZ); /* 30 seconds timeout */ 5348f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby del_timer_sync(&moxa_ports[ch->port].emptyTimer); 5351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5366f56b658b4e5c4486641ce62f331150954c4de37Jiri Slaby moxa_shut_down(ch); 5371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortFlushData(port, 2); 5381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tty->driver->flush_buffer) 5401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty->driver->flush_buffer(tty); 5411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_ldisc_flush(tty); 5421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty->closing = 0; 5441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->event = 0; 5451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->tty = NULL; 5461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->blocked_open) { 5471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->close_delay) { 5481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds msleep_interruptible(jiffies_to_msecs(ch->close_delay)); 5491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wake_up_interruptible(&ch->open_wait); 5511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING); 55395e0791480af8347460d0cbe34a46eca7e77d0d0Jiri Slaby complete_all(&ch->close_wait); 5541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_write(struct tty_struct *tty, 5571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const unsigned char *buf, int count) 5581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5598f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch; 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int len, port; 5611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 5621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5638f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ch = (struct moxa_port *) tty->driver_data; 5641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 5651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 5661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port = ch->port; 56733f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox 56833f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_lock_irqsave(&moxa_lock, flags); 5691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = MoxaPortWriteData(port, (unsigned char *) buf, count); 57033f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_unlock_irqrestore(&moxa_lock, flags); 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /********************************************* 5731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ( !(ch->statusflags & LOWWAIT) && 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ((len != count) || (MoxaPortTxFree(port) <= 100)) ) 5751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ************************************************/ 5761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags |= LOWWAIT; 5771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (len); 5781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_write_room(struct tty_struct *tty) 5811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5828f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch; 5831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tty->stopped) 5851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 5868f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ch = (struct moxa_port *) tty->driver_data; 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 5881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 5891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (MoxaPortTxFree(ch->port)); 5901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_flush_buffer(struct tty_struct *tty) 5931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5948f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch = (struct moxa_port *) tty->driver_data; 5951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 5971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 5981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortFlushData(ch->port, 1); 5991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_wakeup(tty); 6001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_chars_in_buffer(struct tty_struct *tty) 6031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int chars; 6058f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch = (struct moxa_port *) tty->driver_data; 6061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 6081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Sigh...I have to check if driver_data is NULL here, because 6091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * if an open() fails, the TTY subsystem eventually calls 6101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * tty_wait_until_sent(), which calls the driver's chars_in_buffer() 6111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * routine. And since the open() failed, we return 0 here. TDJ 6121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 6141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 6151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds chars = MoxaPortTxQueue(ch->port); 6161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (chars) { 6171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 6181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Make it possible to wakeup anything waiting for output 6191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * in tty_ioctl.c, etc. 6201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(ch->statusflags & EMPTYWAIT)) 6226f56b658b4e5c4486641ce62f331150954c4de37Jiri Slaby moxa_setup_empty_event(tty); 6231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (chars); 6251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_flush_chars(struct tty_struct *tty) 6281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 6301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Don't think I need this, because this is called to empty the TX 6311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * buffer for the 16450, 16550, etc. 6321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_put_char(struct tty_struct *tty, unsigned char c) 6361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6378f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch; 6381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int port; 6391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 6401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6418f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ch = (struct moxa_port *) tty->driver_data; 6421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 6431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 6441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port = ch->port; 64533f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_lock_irqsave(&moxa_lock, flags); 646f204d2672044f0f7061d645f0f59f8535b63d106Jiri Slaby MoxaPortWriteData(port, &c, 1); 64733f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_unlock_irqrestore(&moxa_lock, flags); 6481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /************************************************ 6491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ( !(ch->statusflags & LOWWAIT) && (MoxaPortTxFree(port) <= 100) ) 6501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *************************************************/ 6511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags |= LOWWAIT; 6521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_tiocmget(struct tty_struct *tty, struct file *file) 6551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6568f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch = (struct moxa_port *) tty->driver_data; 6571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int port; 6581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int flag = 0, dtr, rts; 6591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 66011324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby port = tty->index; 6611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((port != MAX_PORTS) && (!ch)) 6621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-EINVAL); 6631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortGetLineOut(ch->port, &dtr, &rts); 6651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dtr) 6661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds flag |= TIOCM_DTR; 6671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rts) 6681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds flag |= TIOCM_RTS; 6691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dtr = MoxaPortLineStatus(ch->port); 6701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dtr & 1) 6711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds flag |= TIOCM_CTS; 6721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dtr & 2) 6731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds flag |= TIOCM_DSR; 6741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dtr & 4) 6751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds flag |= TIOCM_CD; 6761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return flag; 6771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_tiocmset(struct tty_struct *tty, struct file *file, 6801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int set, unsigned int clear) 6811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6828f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch = (struct moxa_port *) tty->driver_data; 6831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int port; 6841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int dtr, rts; 6851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 68611324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby port = tty->index; 6871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((port != MAX_PORTS) && (!ch)) 6881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-EINVAL); 6891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortGetLineOut(ch->port, &dtr, &rts); 6911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (set & TIOCM_RTS) 6921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rts = 1; 6931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (set & TIOCM_DTR) 6941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dtr = 1; 6951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (clear & TIOCM_RTS) 6961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rts = 0; 6971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (clear & TIOCM_DTR) 6981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dtr = 0; 6991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortLineCtrl(ch->port, dtr, rts); 7001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 7011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_ioctl(struct tty_struct *tty, struct file *file, 7041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int cmd, unsigned long arg) 7051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7068f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch = (struct moxa_port *) tty->driver_data; 7071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds register int port; 7081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __user *argp = (void __user *)arg; 7091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int retval; 7101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 71111324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby port = tty->index; 7121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((port != MAX_PORTS) && (!ch)) 7131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-EINVAL); 7141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (cmd) { 7161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TCSBRK: /* SVID version: non-zero arg --> no break */ 7171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retval = tty_check_change(tty); 7181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) 7191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (retval); 7206f56b658b4e5c4486641ce62f331150954c4de37Jiri Slaby moxa_setup_empty_event(tty); 7211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_wait_until_sent(tty, 0); 7221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!arg) 7231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortSendBreak(ch->port, 0); 7241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 7251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TCSBRKP: /* support for POSIX tcsendbreak() */ 7261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retval = tty_check_change(tty); 7271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) 7281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (retval); 7296f56b658b4e5c4486641ce62f331150954c4de37Jiri Slaby moxa_setup_empty_event(tty); 7301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_wait_until_sent(tty, 0); 7311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortSendBreak(ch->port, arg); 7321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 7331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TIOCGSOFTCAR: 7341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return put_user(C_CLOCAL(tty) ? 1 : 0, (unsigned long __user *) argp); 7351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TIOCSSOFTCAR: 7361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(get_user(retval, (unsigned long __user *) argp)) 7371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 7381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds arg = retval; 7391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty->termios->c_cflag = ((tty->termios->c_cflag & ~CLOCAL) | 7401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (arg ? CLOCAL : 0)); 7411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (C_CLOCAL(tty)) 7421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags &= ~ASYNC_CHECK_CD; 7431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 7441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags |= ASYNC_CHECK_CD; 7451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 7461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TIOCGSERIAL: 7471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return moxa_get_serial_info(ch, argp); 7481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TIOCSSERIAL: 7501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return moxa_set_serial_info(ch, argp); 7511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 7521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retval = MoxaDriverIoctl(cmd, arg, port); 7531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (retval); 7551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_throttle(struct tty_struct *tty) 7581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7598f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch = (struct moxa_port *) tty->driver_data; 7601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags |= THROTTLE; 7621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_unthrottle(struct tty_struct *tty) 7651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7668f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch = (struct moxa_port *) tty->driver_data; 7671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags &= ~THROTTLE; 7691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_set_termios(struct tty_struct *tty, 772606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Cox struct ktermios *old_termios) 7731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7748f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch = (struct moxa_port *) tty->driver_data; 7751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 7771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 778db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox moxa_set_tty_param(tty, old_termios); 7791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(old_termios->c_cflag & CLOCAL) && 7801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (tty->termios->c_cflag & CLOCAL)) 7811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wake_up_interruptible(&ch->open_wait); 7821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_stop(struct tty_struct *tty) 7851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7868f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch = (struct moxa_port *) tty->driver_data; 7871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 7891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 7901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortTxDisable(ch->port); 7911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags |= TXSTOPPED; 7921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_start(struct tty_struct *tty) 7961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7978f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch = (struct moxa_port *) tty->driver_data; 7981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 8001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 8011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(ch->statusflags & TXSTOPPED)) 8031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 8041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortTxEnable(ch->port); 8061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags &= ~TXSTOPPED; 8071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_hangup(struct tty_struct *tty) 8101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8118f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch = (struct moxa_port *) tty->driver_data; 8121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxa_flush_buffer(tty); 8146f56b658b4e5c4486641ce62f331150954c4de37Jiri Slaby moxa_shut_down(ch); 8151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->event = 0; 8161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->count = 0; 8171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags &= ~ASYNC_NORMAL_ACTIVE; 8181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->tty = NULL; 8191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wake_up_interruptible(&ch->open_wait); 8201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_poll(unsigned long ignored) 8231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds register int card; 8258f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch; 8261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct tty_struct *tp; 8271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, ports; 8281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds del_timer(&moxaTimer); 8301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (MoxaDriverPoll() < 0) { 832aa7e5221fb47badbea618cc62704d6e4a4bcce15Jiri Slaby mod_timer(&moxaTimer, jiffies + HZ / 50); 8331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 8341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (card = 0; card < MAX_BOARDS; card++) { 8361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((ports = MoxaPortsOfCard(card)) <= 0) 8371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 8388f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ch = &moxa_ports[card * MAX_PORTS_PER_BOARD]; 8391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < ports; i++, ch++) { 8401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((ch->asyncflags & ASYNC_INITIALIZED) == 0) 8411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 8421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(ch->statusflags & THROTTLE) && 8431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (MoxaPortRxQueue(ch->port) > 0)) 8446f56b658b4e5c4486641ce62f331150954c4de37Jiri Slaby moxa_receive_data(ch); 8451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((tp = ch->tty) == 0) 8461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 8471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->statusflags & LOWWAIT) { 8481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (MoxaPortTxQueue(ch->port) <= WAKEUP_CHARS) { 8491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!tp->stopped) { 8501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags &= ~LOWWAIT; 8511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_wakeup(tp); 8521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!I_IGNBRK(tp) && (MoxaPortResetBrkCnt(ch->port) > 0)) { 8561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_insert_flip_char(tp, 0, TTY_BREAK); 8571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_schedule_flip(tp); 8581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (MoxaPortDCDChange(ch->port)) { 8601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->asyncflags & ASYNC_CHECK_CD) { 8611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (MoxaPortDCDON(ch->port)) 8621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wake_up_interruptible(&ch->open_wait); 8631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else { 864ba196df3d6432c5c20429e8e447c5db7abedb8f3Jiri Slaby tty_hangup(tp); 865ba196df3d6432c5c20429e8e447c5db7abedb8f3Jiri Slaby wake_up_interruptible(&ch->open_wait); 866ba196df3d6432c5c20429e8e447c5db7abedb8f3Jiri Slaby ch->asyncflags &= ~ASYNC_NORMAL_ACTIVE; 8671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 873aa7e5221fb47badbea618cc62704d6e4a4bcce15Jiri Slaby mod_timer(&moxaTimer, jiffies + HZ / 50); 8741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/******************************************************************************/ 8771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 878db1acaa632870ec87b65e062bc72ca375837a1f6Alan Coxstatic void moxa_set_tty_param(struct tty_struct *tty, struct ktermios *old_termios) 8791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 880606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Cox register struct ktermios *ts; 8818f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch; 882db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox int rts, cts, txflow, rxflow, xany, baud; 8831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8848f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ch = (struct moxa_port *) tty->driver_data; 8851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ts = tty->termios; 8861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ts->c_cflag & CLOCAL) 8871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags &= ~ASYNC_CHECK_CD; 8881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 8891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags |= ASYNC_CHECK_CD; 8901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rts = cts = txflow = rxflow = xany = 0; 8911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ts->c_cflag & CRTSCTS) 8921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rts = cts = 1; 8931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ts->c_iflag & IXON) 8941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds txflow = 1; 8951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ts->c_iflag & IXOFF) 8961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rxflow = 1; 8971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ts->c_iflag & IXANY) 8981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds xany = 1; 899db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox 900db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox /* Clear the features we don't support */ 901db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox ts->c_cflag &= ~CMSPAR; 9021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortFlowCtrl(ch->port, rts, cts, txflow, rxflow, xany); 903db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox baud = MoxaPortSetTermio(ch->port, ts, tty_get_baud_rate(tty)); 904db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox if (baud == -1) 905db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox baud = tty_termios_baud_rate(old_termios); 906db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox /* Not put the baud rate into the termios data */ 907db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox tty_encode_baud_rate(tty, baud, baud); 9081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9106f56b658b4e5c4486641ce62f331150954c4de37Jiri Slabystatic int moxa_block_till_ready(struct tty_struct *tty, struct file *filp, 9118f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch) 9121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds DECLARE_WAITQUEUE(wait,current); 9141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 9151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int retval; 9161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int do_clocal = C_CLOCAL(tty); 9171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 9191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * If the device is in the middle of being closed, then block 9201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * until it's done, and then try again. 9211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tty_hung_up_p(filp) || (ch->asyncflags & ASYNC_CLOSING)) { 9231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->asyncflags & ASYNC_CLOSING) 92495e0791480af8347460d0cbe34a46eca7e77d0d0Jiri Slaby wait_for_completion_interruptible(&ch->close_wait); 9251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef SERIAL_DO_RESTART 9261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->asyncflags & ASYNC_HUP_NOTIFY) 9271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-EAGAIN); 9281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 9291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-ERESTARTSYS); 9301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 9311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-EAGAIN); 9321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 9331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 9351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * If non-blocking mode is set, then make the check up front 9361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and then exit. 9371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (filp->f_flags & O_NONBLOCK) { 9391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags |= ASYNC_NORMAL_ACTIVE; 9401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 9411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 9431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Block waiting for the carrier detect and the line to become free 9441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retval = 0; 9461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds add_wait_queue(&ch->open_wait, &wait); 9477aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby pr_debug("block_til_ready before block: ttys%d, count = %d\n", 9487aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby ch->port, ch->count); 94933f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_lock_irqsave(&moxa_lock, flags); 9501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!tty_hung_up_p(filp)) 9511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->count--; 9521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->blocked_open++; 95333f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_unlock_irqrestore(&moxa_lock, flags); 95433f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox 9551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (1) { 9561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_current_state(TASK_INTERRUPTIBLE); 9571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tty_hung_up_p(filp) || 9581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds !(ch->asyncflags & ASYNC_INITIALIZED)) { 9591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef SERIAL_DO_RESTART 9601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->asyncflags & ASYNC_HUP_NOTIFY) 9611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retval = -EAGAIN; 9621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 9631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retval = -ERESTARTSYS; 9641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 9651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retval = -EAGAIN; 9661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 9671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(ch->asyncflags & ASYNC_CLOSING) && (do_clocal || 9701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortDCDON(ch->port))) 9711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (signal_pending(current)) { 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retval = -ERESTARTSYS; 9751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds schedule(); 9781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_current_state(TASK_RUNNING); 9801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds remove_wait_queue(&ch->open_wait, &wait); 98133f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox 98233f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_lock_irqsave(&moxa_lock, flags); 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!tty_hung_up_p(filp)) 9841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->count++; 9851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->blocked_open--; 98633f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_unlock_irqrestore(&moxa_lock, flags); 9877aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby pr_debug("block_til_ready after blocking: ttys%d, count = %d\n", 9887aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby ch->port, ch->count); 9891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) 9901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (retval); 99133f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox /* FIXME: review to see if we need to use set_bit on these */ 9921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags |= ASYNC_NORMAL_ACTIVE; 99333f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox return 0; 9941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9966f56b658b4e5c4486641ce62f331150954c4de37Jiri Slabystatic void moxa_setup_empty_event(struct tty_struct *tty) 9971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9988f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch = tty->driver_data; 9991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 10001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 100133f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_lock_irqsave(&moxa_lock, flags); 10021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags |= EMPTYWAIT; 10038f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby mod_timer(&moxa_ports[ch->port].emptyTimer, jiffies + HZ); 100433f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_unlock_irqrestore(&moxa_lock, flags); 10051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10076f56b658b4e5c4486641ce62f331150954c4de37Jiri Slabystatic void moxa_check_xmit_empty(unsigned long data) 10081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10098f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch; 10101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10118f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ch = (struct moxa_port *) data; 10121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch->tty && (ch->statusflags & EMPTYWAIT)) { 10131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (MoxaPortTxQueue(ch->port) == 0) { 10141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags &= ~EMPTYWAIT; 10151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_wakeup(ch->tty); 10161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 10171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1018c43422053bea7a5ce09f18d0c50a606fe1a549f4Jiri Slaby mod_timer(&moxa_ports[ch->port].emptyTimer, 1019c43422053bea7a5ce09f18d0c50a606fe1a549f4Jiri Slaby round_jiffies(jiffies + HZ)); 10201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 10211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags &= ~EMPTYWAIT; 10221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10246f56b658b4e5c4486641ce62f331150954c4de37Jiri Slabystatic void moxa_shut_down(struct moxa_port *ch) 10251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct tty_struct *tp; 10271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(ch->asyncflags & ASYNC_INITIALIZED)) 10291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 10301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tp = ch->tty; 10321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortDisable(ch->port); 10341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 10361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * If we're a modem control device and HUPCL is on, drop RTS & DTR. 10371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tp->termios->c_cflag & HUPCL) 10391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortLineCtrl(ch->port, 0, 0); 10401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->asyncflags &= ~ASYNC_INITIALIZED; 10421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10446f56b658b4e5c4486641ce62f331150954c4de37Jiri Slabystatic void moxa_receive_data(struct moxa_port *ch) 10451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct tty_struct *tp; 1047606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Cox struct ktermios *ts; 10481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 10491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ts = NULL; 10511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tp = ch->tty; 10521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tp) 10531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ts = tp->termios; 10541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /************************************************** 10551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ( !tp || !ts || !(ts->c_cflag & CREAD) ) { 10561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *****************************************************/ 10571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!tp || !ts) { 10581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortFlushData(ch->port, 0); 10591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 10601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 106133f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_lock_irqsave(&moxa_lock, flags); 106233f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox MoxaPortReadData(ch->port, tp); 106333f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox spin_unlock_irqrestore(&moxa_lock, flags); 106433f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox tty_schedule_flip(tp); 10651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Magic_code 0x404 10681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 10701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * System Configuration 10711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 10731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for C218 BIOS initialization 10741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218_ConfBase 0x800 10761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218_status (C218_ConfBase + 0) /* BIOS running status */ 10771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218_diag (C218_ConfBase + 2) /* diagnostic status */ 10781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218_key (C218_ConfBase + 4) /* WORD (0x218 for C218) */ 10791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218DLoad_len (C218_ConfBase + 6) /* WORD */ 10801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218check_sum (C218_ConfBase + 8) /* BYTE */ 10811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218chksum_ok (C218_ConfBase + 0x0a) /* BYTE (1:ok) */ 10821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218_TestRx (C218_ConfBase + 0x10) /* 8 bytes for 8 ports */ 10831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218_TestTx (C218_ConfBase + 0x18) /* 8 bytes for 8 ports */ 10841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218_RXerr (C218_ConfBase + 0x20) /* 8 bytes for 8 ports */ 10851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218_ErrFlag (C218_ConfBase + 0x28) /* 8 bytes for 8 ports */ 10861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218_LoadBuf 0x0F00 10881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218_KeyCode 0x218 10891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CP204J_KeyCode 0x204 10901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 10921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for C320 BIOS initialization 10931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320_ConfBase 0x800 10951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320_LoadBuf 0x0f00 10961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define STS_init 0x05 /* for C320_status */ 10971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320_status C320_ConfBase + 0 /* BIOS running status */ 10991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320_diag C320_ConfBase + 2 /* diagnostic status */ 11001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320_key C320_ConfBase + 4 /* WORD (0320H for C320) */ 11011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320DLoad_len C320_ConfBase + 6 /* WORD */ 11021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320check_sum C320_ConfBase + 8 /* WORD */ 11031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320chksum_ok C320_ConfBase + 0x0a /* WORD (1:ok) */ 11041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320bapi_len C320_ConfBase + 0x0c /* WORD */ 11051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320UART_no C320_ConfBase + 0x0e /* WORD */ 11061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320_KeyCode 0x320 11081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FixPage_addr 0x0000 /* starting addr of static page */ 11101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DynPage_addr 0x2000 /* starting addr of dynamic page */ 11111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218_start 0x3000 /* starting addr of C218 BIOS prg */ 11121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Control_reg 0x1ff0 /* select page and reset control */ 11131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define HW_reset 0x80 11141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 11161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function Codes 11171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_CardReset 0x80 11191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_ChannelReset 1 /* C320 firmware not supported */ 11201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_EnableCH 2 11211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_DisableCH 3 11221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SetParam 4 11231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SetMode 5 11241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SetRate 6 11251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_LineControl 7 11261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_LineStatus 8 11271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_XmitControl 9 11281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_FlushQueue 10 11291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SendBreak 11 11301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_StopBreak 12 11311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_LoopbackON 13 11321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_LoopbackOFF 14 11331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_ClrIrqTable 15 11341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SendXon 16 11351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SetTermIrq 17 /* C320 firmware not supported */ 11361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SetCntIrq 18 /* C320 firmware not supported */ 11371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SetBreakIrq 19 11381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SetLineIrq 20 11391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SetFlowCtl 21 11401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_GenIrq 22 11411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_InCD180 23 11421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_OutCD180 24 11431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_InUARTreg 23 11441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_OutUARTreg 24 11451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SetXonXoff 25 11461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_OutCD180CCR 26 11471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_ExtIQueue 27 11481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_ExtOQueue 28 11491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_ClrLineIrq 29 11501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_HWFlowCtl 30 11511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_GetClockRate 35 11521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SetBaud 36 11531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SetDataMode 41 11541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_GetCCSR 43 11551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_GetDataError 45 11561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_RxControl 50 11571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_ImmSend 51 11581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SetXonState 52 11591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SetXoffState 53 11601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SetRxFIFOTrig 54 11611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_SetTxFIFOCnt 55 11621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_UnixRate 56 11631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_UnixResetTimer 57 11641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RxFIFOTrig1 0 11661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RxFIFOTrig4 1 11671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RxFIFOTrig8 2 11681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RxFIFOTrig14 3 11691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 11711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Dual-Ported RAM 11721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DRAM_global 0 11741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define INT_data (DRAM_global + 0) 11751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Config_base (DRAM_global + 0x108) 11761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IRQindex (INT_data + 0) 11781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IRQpending (INT_data + 4) 11791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IRQtable (INT_data + 8) 11801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 11821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Interrupt Status 11831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IntrRx 0x01 /* receiver data O.K. */ 11851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IntrTx 0x02 /* transmit buffer empty */ 11861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IntrFunc 0x04 /* function complete */ 11871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IntrBreak 0x08 /* received break */ 11881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IntrLine 0x10 /* line status change 11891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for transmitter */ 11901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IntrIntr 0x20 /* received INTR code */ 11911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IntrQuit 0x40 /* received QUIT code */ 11921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IntrEOF 0x80 /* received EOF code */ 11931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IntrRxTrigger 0x100 /* rx data count reach tigger value */ 11951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IntrTxTrigger 0x200 /* tx data count below trigger value */ 11961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Magic_no (Config_base + 0) 11981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Card_model_no (Config_base + 2) 11991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Total_ports (Config_base + 4) 12001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Module_cnt (Config_base + 8) 12011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Module_no (Config_base + 10) 12021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Timer_10ms (Config_base + 14) 12031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Disable_IRQ (Config_base + 20) 12041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TMS320_PORT1 (Config_base + 22) 12051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TMS320_PORT2 (Config_base + 24) 12061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TMS320_CLOCK (Config_base + 26) 12071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 12091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * DATA BUFFER in DRAM 12101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 12111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Extern_table 0x400 /* Base address of the external table 12121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (24 words * 64) total 3K bytes 12131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (24 words * 128) total 6K bytes */ 12141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Extern_size 0x60 /* 96 bytes */ 12151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RXrptr 0x00 /* read pointer for RX buffer */ 12161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RXwptr 0x02 /* write pointer for RX buffer */ 12171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXrptr 0x04 /* read pointer for TX buffer */ 12181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXwptr 0x06 /* write pointer for TX buffer */ 12191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define HostStat 0x08 /* IRQ flag and general flag */ 12201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FlagStat 0x0A 12211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FlowControl 0x0C /* B7 B6 B5 B4 B3 B2 B1 B0 */ 12221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* x x x x | | | | */ 12231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* | | | + CTS flow */ 12241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* | | +--- RTS flow */ 12251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* | +------ TX Xon/Xoff */ 12261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* +--------- RX Xon/Xoff */ 12271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Break_cnt 0x0E /* received break count */ 12281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CD180TXirq 0x10 /* if non-0: enable TX irq */ 12291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RX_mask 0x12 12301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TX_mask 0x14 12311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Ofs_rxb 0x16 12321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Ofs_txb 0x18 12331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Page_rxb 0x1A 12341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Page_txb 0x1C 12351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define EndPage_rxb 0x1E 12361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define EndPage_txb 0x20 12371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Data_error 0x22 12381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RxTrigger 0x28 12391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TxTrigger 0x2a 12401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define rRXwptr 0x34 12421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Low_water 0x36 12431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FuncCode 0x40 12451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FuncArg 0x42 12461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FuncArg1 0x44 12471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218rx_size 0x2000 /* 8K bytes */ 12491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218tx_size 0x8000 /* 32K bytes */ 12501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218rx_mask (C218rx_size - 1) 12521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218tx_mask (C218tx_size - 1) 12531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p8rx_size 0x2000 12551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p8tx_size 0x8000 12561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p8rx_mask (C320p8rx_size - 1) 12571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p8tx_mask (C320p8tx_size - 1) 12581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p16rx_size 0x2000 12601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p16tx_size 0x4000 12611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p16rx_mask (C320p16rx_size - 1) 12621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p16tx_mask (C320p16tx_size - 1) 12631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p24rx_size 0x2000 12651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p24tx_size 0x2000 12661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p24rx_mask (C320p24rx_size - 1) 12671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p24tx_mask (C320p24tx_size - 1) 12681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p32rx_size 0x1000 12701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p32tx_size 0x1000 12711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p32rx_mask (C320p32rx_size - 1) 12721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p32tx_mask (C320p32tx_size - 1) 12731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Page_size 0x2000 12751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Page_mask (Page_size - 1) 12761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218rx_spage 3 12771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218tx_spage 4 12781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218rx_pageno 1 12791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218tx_pageno 4 12801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C218buf_pageno 5 12811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p8rx_spage 3 12831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p8tx_spage 4 12841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p8rx_pgno 1 12851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p8tx_pgno 4 12861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p8buf_pgno 5 12871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p16rx_spage 3 12891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p16tx_spage 4 12901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p16rx_pgno 1 12911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p16tx_pgno 2 12921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p16buf_pgno 3 12931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p24rx_spage 3 12951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p24tx_spage 4 12961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p24rx_pgno 1 12971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p24tx_pgno 1 12981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p24buf_pgno 2 12991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p32rx_spage 3 13011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p32tx_ofs C320p32rx_size 13021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p32tx_spage 3 13031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define C320p32buf_pgno 1 13041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 13061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Host Status 13071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define WakeupRx 0x01 13091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define WakeupTx 0x02 13101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define WakeupBreak 0x08 13111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define WakeupLine 0x10 13121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define WakeupIntr 0x20 13131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define WakeupQuit 0x40 13141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define WakeupEOF 0x80 /* used in VTIME control */ 13151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define WakeupRxTrigger 0x100 13161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define WakeupTxTrigger 0x200 13171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 13181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Flag status 13191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Rx_over 0x01 13211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Xoff_state 0x02 13221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Tx_flowOff 0x04 13231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Tx_enable 0x08 13241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CTS_state 0x10 13251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DSR_state 0x20 13261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DCD_state 0x80 13271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 13281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FlowControl 13291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CTS_FlowCtl 1 13311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RTS_FlowCtl 2 13321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Tx_FlowCtl 4 13331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define Rx_FlowCtl 8 13341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IXM_IXANY 0x10 13351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LowWater 128 13371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DTR_ON 1 13391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RTS_ON 2 13401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CTS_ON 1 13411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DSR_ON 2 13421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DCD_ON 8 13431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* mode definition */ 13451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MX_CS8 0x03 13461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MX_CS7 0x02 13471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MX_CS6 0x01 13481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MX_CS5 0x00 13491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MX_STOP1 0x00 13511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MX_STOP15 0x04 13521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MX_STOP2 0x08 13531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MX_PARNONE 0x00 13551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MX_PAREVEN 0x40 13561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MX_PARODD 0xC0 13571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 13591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Query 13601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct mon_str { 13631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int tick; 13641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int rxcnt[MAX_PORTS]; 13651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int txcnt[MAX_PORTS]; 13661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 13671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DCD_changed 0x01 13691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DCD_oldstate 0x80 13701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic unsigned char moxaBuff[10240]; 13721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxaLowWaterChk; 13731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxaCard; 13749dff89cd82af7bccc706fed288b1c33a51c3b937Jiri Slabystatic struct mon_str moxaLog; 13759fa372a850b9ffcb177eb9ac0b75963b2f9af233Jiri Slabystatic int moxaFuncTout = HZ / 2; 13761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxafunc(void __iomem *, int, ushort); 13786f56b658b4e5c4486641ce62f331150954c4de37Jiri Slabystatic void moxa_wait_finish(void __iomem *); 13796f56b658b4e5c4486641ce62f331150954c4de37Jiri Slabystatic void moxa_low_water_check(void __iomem *); 13801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxaloadbios(int, unsigned char __user *, int); 13811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxafindcard(int); 13821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxaload320b(int, unsigned char __user *, int); 13831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxaloadcode(int, unsigned char __user *, int); 13841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxaloadc218(int, void __iomem *, int); 13851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxaloadc320(int, void __iomem *, int, int *); 13861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/***************************************************************************** 13881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Driver level functions: * 13891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1. MoxaDriverInit(void); * 13901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2. MoxaDriverIoctl(unsigned int cmd, unsigned long arg, int port); * 13911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3. MoxaDriverPoll(void); * 13921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *****************************************************************************/ 13931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid MoxaDriverInit(void) 13941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 13958f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *p; 13968f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby unsigned int i; 13971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaFuncTout = HZ / 2; /* 500 mini-seconds */ 13991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaCard = 0; 14001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaLog.tick = 0; 14011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaLowWaterChk = 0; 14021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < MAX_PORTS; i++) { 14038f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby p = &moxa_ports[i]; 14048f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby p->chkPort = 0; 14058f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby p->lowChkFlag = 0; 14068f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby p->lineCtrl = 0; 14071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaLog.rxcnt[i] = 0; 14081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaLog.txcnt[i] = 0; 14091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA 0x400 14131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_GET_IQUEUE (MOXA + 1) /* get input buffered count */ 14141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_GET_OQUEUE (MOXA + 2) /* get output buffered count */ 14151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_INIT_DRIVER (MOXA + 6) /* moxaCard=0 */ 14161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_LOAD_BIOS (MOXA + 9) /* download BIOS */ 14171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_FIND_BOARD (MOXA + 10) /* Check if MOXA card exist? */ 14181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_LOAD_C320B (MOXA + 11) /* download 320B firmware */ 14191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_LOAD_CODE (MOXA + 12) /* download firmware */ 14201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_GETDATACOUNT (MOXA + 23) 14211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_GET_IOQUEUE (MOXA + 27) 14221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_FLUSH_QUEUE (MOXA + 28) 14231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_GET_CONF (MOXA + 35) /* configuration */ 14241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_GET_MAJOR (MOXA + 63) 14251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_GET_CUMAJOR (MOXA + 64) 14261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MOXA_GETMSTATUS (MOXA + 65) 14271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct dl_str { 14291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char __user *buf; 14301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int len; 14311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int cardno; 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 14331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct dl_str dltmp; 14351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid MoxaPortFlushData(int port, int mode) 14371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 14381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 14391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((mode < 0) || (mode > 2)) 14401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 14418f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ofsAddr = moxa_ports[port].tableAddr; 14421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_FlushQueue, mode); 14431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (mode != 1) { 14448f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby moxa_ports[port].lowChkFlag = 0; 14456f56b658b4e5c4486641ce62f331150954c4de37Jiri Slaby moxa_low_water_check(ofsAddr); 14461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint MoxaDriverIoctl(unsigned int cmd, unsigned long arg, int port) 14501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 14511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 14521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int status; 14531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int MoxaPortTxQueue(int), MoxaPortRxQueue(int); 14541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __user *argp = (void __user *)arg; 14551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 145611324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby if (port == MAX_PORTS) { 14571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((cmd != MOXA_GET_CONF) && (cmd != MOXA_INIT_DRIVER) && 14581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (cmd != MOXA_LOAD_BIOS) && (cmd != MOXA_FIND_BOARD) && (cmd != MOXA_LOAD_C320B) && 14591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (cmd != MOXA_LOAD_CODE) && (cmd != MOXA_GETDATACOUNT) && 14601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (cmd != MOXA_GET_IOQUEUE) && (cmd != MOXA_GET_MAJOR) && 14611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (cmd != MOXA_GET_CUMAJOR) && (cmd != MOXA_GETMSTATUS)) 14621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-EINVAL); 14631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (cmd) { 14651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_GET_CONF: 14669dff89cd82af7bccc706fed288b1c33a51c3b937Jiri Slaby if(copy_to_user(argp, &moxa_boards, MAX_BOARDS * 14679dff89cd82af7bccc706fed288b1c33a51c3b937Jiri Slaby sizeof(struct moxa_board_conf))) 14681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 14691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 14701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_INIT_DRIVER: 14711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((int) arg == 0x404) 14721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaDriverInit(); 14731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 14741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_GETDATACOUNT: 14751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaLog.tick = jiffies; 14769dff89cd82af7bccc706fed288b1c33a51c3b937Jiri Slaby if(copy_to_user(argp, &moxaLog, sizeof(struct mon_str))) 14771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 14781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 14791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_FLUSH_QUEUE: 14801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortFlushData(port, arg); 14811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 14828f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby case MOXA_GET_IOQUEUE: { 14838f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxaq_str __user *argm = argp; 1484181d6f4fac7f01ede95284954ea1231939dca0d9Jiri Slaby struct moxaq_str tmp; 14858f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby 14868f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby for (i = 0; i < MAX_PORTS; i++, argm++) { 1487181d6f4fac7f01ede95284954ea1231939dca0d9Jiri Slaby memset(&tmp, 0, sizeof(tmp)); 1488181d6f4fac7f01ede95284954ea1231939dca0d9Jiri Slaby if (moxa_ports[i].chkPort) { 1489181d6f4fac7f01ede95284954ea1231939dca0d9Jiri Slaby tmp.inq = MoxaPortRxQueue(i); 1490181d6f4fac7f01ede95284954ea1231939dca0d9Jiri Slaby tmp.outq = MoxaPortTxQueue(i); 14911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1492181d6f4fac7f01ede95284954ea1231939dca0d9Jiri Slaby if (copy_to_user(argm, &tmp, sizeof(tmp))) 14938f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby return -EFAULT; 14941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 14968f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby } case MOXA_GET_OQUEUE: 14971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = MoxaPortTxQueue(port); 14981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return put_user(i, (unsigned long __user *)argp); 14991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_GET_IQUEUE: 15001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = MoxaPortRxQueue(port); 15011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return put_user(i, (unsigned long __user *)argp); 15021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_GET_MAJOR: 15031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(copy_to_user(argp, &ttymajor, sizeof(int))) 15041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 15051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 15061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_GET_CUMAJOR: 15071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = 0; 15081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(copy_to_user(argp, &i, sizeof(int))) 15091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 15101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 15118f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby case MOXA_GETMSTATUS: { 15128f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct mxser_mstatus __user *argm = argp; 1513181d6f4fac7f01ede95284954ea1231939dca0d9Jiri Slaby struct mxser_mstatus tmp; 15148f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *p; 15158f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby 15168f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby for (i = 0; i < MAX_PORTS; i++, argm++) { 15178f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby p = &moxa_ports[i]; 1518181d6f4fac7f01ede95284954ea1231939dca0d9Jiri Slaby memset(&tmp, 0, sizeof(tmp)); 15198f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby if (!p->chkPort) { 15208f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby goto copy; 15211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 15228f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby status = MoxaPortLineStatus(p->port); 15231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (status & 1) 1524181d6f4fac7f01ede95284954ea1231939dca0d9Jiri Slaby tmp.cts = 1; 15251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (status & 2) 1526181d6f4fac7f01ede95284954ea1231939dca0d9Jiri Slaby tmp.dsr = 1; 15271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (status & 4) 1528181d6f4fac7f01ede95284954ea1231939dca0d9Jiri Slaby tmp.dcd = 1; 15291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15318f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby if (!p->tty || !p->tty->termios) 1532181d6f4fac7f01ede95284954ea1231939dca0d9Jiri Slaby tmp.cflag = p->cflag; 15331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 1534181d6f4fac7f01ede95284954ea1231939dca0d9Jiri Slaby tmp.cflag = p->tty->termios->c_cflag; 15358f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slabycopy: 1536181d6f4fac7f01ede95284954ea1231939dca0d9Jiri Slaby if (copy_to_user(argm, &tmp, sizeof(tmp))) 15378f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby return -EFAULT; 15381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 15408f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby } default: 15411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-ENOIOCTLCMD); 15421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_LOAD_BIOS: 15431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_FIND_BOARD: 15441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_LOAD_C320B: 15451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_LOAD_CODE: 154649cd619c69d643b30a24029e40eb5364c7a26b2eAlan Cox if (!capable(CAP_SYS_RAWIO)) 154749cd619c69d643b30a24029e40eb5364c7a26b2eAlan Cox return -EPERM; 15481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(copy_from_user(&dltmp, argp, sizeof(struct dl_str))) 15521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 1553a2f72982e22b96862f8f15272732bd316d4db040dann frazier if(dltmp.cardno < 0 || dltmp.cardno >= MAX_BOARDS || dltmp.len < 0) 15541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 15551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch(cmd) 15571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 15581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_LOAD_BIOS: 15591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = moxaloadbios(dltmp.cardno, dltmp.buf, dltmp.len); 15601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (i); 15611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_FIND_BOARD: 15621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return moxafindcard(dltmp.cardno); 15631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_LOAD_C320B: 15641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaload320b(dltmp.cardno, dltmp.buf, dltmp.len); 15651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: /* to keep gcc happy */ 15661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 15671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_LOAD_CODE: 15681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = moxaloadcode(dltmp.cardno, dltmp.buf, dltmp.len); 15691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i == -1) 15701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-EFAULT); 15711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (i); 15721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint MoxaDriverPoll(void) 15771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 15788f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_board_conf *brd; 15791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds register ushort temp; 15801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds register int card; 15811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 15821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ip; 15831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int port, p, ports; 15841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (moxaCard == 0) 15861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-1); 15871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (card = 0; card < MAX_BOARDS; card++) { 15888f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby brd = &moxa_boards[card]; 15898f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby if (brd->loadstat == 0) 159001cfaf0d12ae5fa092cc916ca4066ee1598e857dDirk Eibach continue; 15918f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby if ((ports = brd->numPorts) == 0) 15921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 15938f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby if (readb(brd->intPend) == 0xff) { 15948f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ip = brd->intTable + readb(brd->intNdx); 15951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p = card * MAX_PORTS_PER_BOARD; 15961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ports <<= 1; 15971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (port = 0; port < ports; port += 2, p++) { 15981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((temp = readw(ip + port)) != 0) { 15991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0, ip + port); 16008f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ofsAddr = moxa_ports[p].tableAddr; 16011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (temp & IntrTx) 16021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(readw(ofsAddr + HostStat) & ~WakeupTx, ofsAddr + HostStat); 16031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (temp & IntrBreak) { 16048f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby moxa_ports[p].breakCnt++; 16051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (temp & IntrLine) { 16071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readb(ofsAddr + FlagStat) & DCD_state) { 16088f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby if ((moxa_ports[p].DCDState & DCD_oldstate) == 0) 16098f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby moxa_ports[p].DCDState = (DCD_oldstate | 16101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds DCD_changed); 16111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 16128f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby if (moxa_ports[p].DCDState & DCD_oldstate) 16138f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby moxa_ports[p].DCDState = DCD_changed; 16141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16188f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby writeb(0, brd->intPend); 16191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (moxaLowWaterChk) { 16211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p = card * MAX_PORTS_PER_BOARD; 16221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (port = 0; port < ports; port++, p++) { 16238f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby if (moxa_ports[p].lowChkFlag) { 16248f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby moxa_ports[p].lowChkFlag = 0; 16258f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ofsAddr = moxa_ports[p].tableAddr; 16266f56b658b4e5c4486641ce62f331150954c4de37Jiri Slaby moxa_low_water_check(ofsAddr); 16271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaLowWaterChk = 0; 16321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 16331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/***************************************************************************** 16361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Card level function: * 16371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1. MoxaPortsOfCard(int cardno); * 16381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *****************************************************************************/ 16391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint MoxaPortsOfCard(int cardno) 16401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 16411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (moxa_boards[cardno].boardType == 0) 16431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 16441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (moxa_boards[cardno].numPorts); 16451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/***************************************************************************** 16481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Port level functions: * 16491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1. MoxaPortIsValid(int port); * 16501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2. MoxaPortEnable(int port); * 16511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3. MoxaPortDisable(int port); * 16521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4. MoxaPortGetMaxBaud(int port); * 16531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 6. MoxaPortSetBaud(int port, long baud); * 16541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 8. MoxaPortSetTermio(int port, unsigned char *termio); * 16551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 9. MoxaPortGetLineOut(int port, int *dtrState, int *rtsState); * 16561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 10. MoxaPortLineCtrl(int port, int dtrState, int rtsState); * 16571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 11. MoxaPortFlowCtrl(int port, int rts, int cts, int rx, int tx,int xany); * 16581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 12. MoxaPortLineStatus(int port); * 16591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 13. MoxaPortDCDChange(int port); * 16601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 14. MoxaPortDCDON(int port); * 16611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15. MoxaPortFlushData(int port, int mode); * 16621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16. MoxaPortWriteData(int port, unsigned char * buffer, int length); * 166333f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox * 17. MoxaPortReadData(int port, struct tty_struct *tty); * 16641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 20. MoxaPortTxQueue(int port); * 16651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 21. MoxaPortTxFree(int port); * 16661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 22. MoxaPortRxQueue(int port); * 16671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 24. MoxaPortTxDisable(int port); * 16681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 25. MoxaPortTxEnable(int port); * 16691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 27. MoxaPortResetBrkCnt(int port); * 16701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 30. MoxaPortSendBreak(int port, int ticks); * 16711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *****************************************************************************/ 16721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 16731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Moxa Port Number Description: 16741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * MOXA serial driver supports up to 4 MOXA-C218/C320 boards. And, 16761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the port number using in MOXA driver functions will be 0 to 31 for 16771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * first MOXA board, 32 to 63 for second, 64 to 95 for third and 96 16781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to 127 for fourth. For example, if you setup three MOXA boards, 16791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * first board is C218, second board is C320-16 and third board is 16801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * C320-32. The port number of first board (C218 - 8 ports) is from 16811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 to 7. The port number of second board (C320 - 16 ports) is form 16821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 32 to 47. The port number of third board (C320 - 32 ports) is from 16831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 64 to 95. And those port numbers form 8 to 31, 48 to 63 and 96 to 16841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 127 will be invalid. 16851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Moxa Functions Description: 16881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 1: Driver initialization routine, this routine must be 16901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * called when initialized driver. 16911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 16921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaDriverInit(); 16931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 2: Moxa driver private IOCTL command processing. 16961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 16971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaDriverIoctl(unsigned int cmd, unsigned long arg, int port); 16981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * unsigned int cmd : IOCTL command 17001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * unsigned long arg : IOCTL argument 17011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 17021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 (OK) 17041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * -EINVAL 17051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * -ENOIOCTLCMD 17061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 3: Moxa driver polling process routine. 17091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 17101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaDriverPoll(void); 17111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 ; polling O.K. 17131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * -1 : no any Moxa card. 17141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 4: Get the ports of this card. 17171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 17181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortsOfCard(int cardno); 17191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int cardno : card number (0 - 3) 17211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 : this card is invalid 17231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 8/16/24/32 17241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 5: Check this port is valid or invalid 17271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 17281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortIsValid(int port); 17291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127, ref port description) 17301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 : this port is invalid 17321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1 : this port is valid 17331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 6: Enable this port to start Tx/Rx data. 17361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 17371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortEnable(int port); 17381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 17391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 7: Disable this port 17421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 17431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortDisable(int port); 17441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 17451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 8: Get the maximun available baud rate of this port. 17481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 17491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * long MoxaPortGetMaxBaud(int port); 17501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 17511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 : this port is invalid 17531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 38400/57600/115200 bps 17541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 10: Setting baud rate of this port. 17571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 17581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * long MoxaPortSetBaud(int port, long baud); 17591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 17601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * long baud : baud rate (50 - 115200) 17611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 : this port is invalid or baud < 50 17631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 50 - 115200 : the real baud rate set to the port, if 17641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the argument baud is large than maximun 17651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * available baud rate, the real setting 17661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * baud rate will be the maximun baud rate. 17671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 12: Configure the port. 17701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 1771606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Cox * int MoxaPortSetTermio(int port, struct ktermios *termio, speed_t baud); 17721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 1773606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Cox * struct ktermios * termio : termio structure pointer 1774c7bce3097c0f9bbed76ee6fd03742f2624031a45Alan Cox * speed_t baud : baud rate 17751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: -1 : this port is invalid or termio == NULL 17771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 : setting O.K. 17781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 13: Get the DTR/RTS state of this port. 17811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 17821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortGetLineOut(int port, int *dtrState, int *rtsState); 17831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 17841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int * dtrState : pointer to INT to receive the current DTR 17851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * state. (if NULL, this function will not 17861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * write to this address) 17871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int * rtsState : pointer to INT to receive the current RTS 17881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * state. (if NULL, this function will not 17891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * write to this address) 17901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: -1 : this port is invalid 17921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 : O.K. 17931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 14: Setting the DTR/RTS output state of this port. 17961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 17971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortLineCtrl(int port, int dtrState, int rtsState); 17981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 17991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int dtrState : DTR output state (0: off, 1: on) 18001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int rtsState : RTS output state (0: off, 1: on) 18011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 15: Setting the flow control of this port. 18041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 18051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortFlowCtrl(int port, int rtsFlow, int ctsFlow, int rxFlow, 18061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int txFlow,int xany); 18071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 18081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int rtsFlow : H/W RTS flow control (0: no, 1: yes) 18091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int ctsFlow : H/W CTS flow control (0: no, 1: yes) 18101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int rxFlow : S/W Rx XON/XOFF flow control (0: no, 1: yes) 18111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int txFlow : S/W Tx XON/XOFF flow control (0: no, 1: yes) 18121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int xany : S/W XANY flow control (0: no, 1: yes) 18131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 16: Get ths line status of this port 18161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 18171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortLineStatus(int port); 18181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 18191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: Bit 0 - CTS state (0: off, 1: on) 18211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Bit 1 - DSR state (0: off, 1: on) 18221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Bit 2 - DCD state (0: off, 1: on) 18231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 17: Check the DCD state has changed since the last read 18261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of this function. 18271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 18281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortDCDChange(int port); 18291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 18301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 : no changed 18321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1 : DCD has changed 18331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 18: Check ths current DCD state is ON or not. 18361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 18371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortDCDON(int port); 18381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 18391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 : DCD off 18411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1 : DCD on 18421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 19: Flush the Rx/Tx buffer data of this port. 18451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 18461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortFlushData(int port, int mode); 18471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 18481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int mode 18491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 : flush the Rx buffer 18501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1 : flush the Tx buffer 18511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2 : flush the Rx and Tx buffer 18521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 20: Write data. 18551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 18561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortWriteData(int port, unsigned char * buffer, int length); 18571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 18581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * unsigned char * buffer : pointer to write data buffer. 18591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int length : write data length 18601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 - length : real write data length 18621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 21: Read data. 18651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 186633f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox * int MoxaPortReadData(int port, struct tty_struct *tty); 18671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 186833f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox * struct tty_struct *tty : tty for data 18691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 - length : real read data length 18711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 24: Get the Tx buffer current queued data bytes 18741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 18751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortTxQueue(int port); 18761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 18771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: .. : Tx buffer current queued data bytes 18791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 25: Get the Tx buffer current free space 18821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 18831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortTxFree(int port); 18841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 18851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: .. : Tx buffer current free space 18871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 26: Get the Rx buffer current queued data bytes 18901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 18911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortRxQueue(int port); 18921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 18931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: .. : Rx buffer current queued data bytes 18951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 28: Disable port data transmission. 18981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 18991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortTxDisable(int port); 19001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 19011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 29: Enable port data transmission. 19041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 19051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortTxEnable(int port); 19061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 19071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 31: Get the received BREAK signal count and reset it. 19101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 19111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortResetBrkCnt(int port); 19121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 19131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 - .. : BREAK signal count 19151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 34: Send out a BREAK signal. 19181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 19191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortSendBreak(int port, int ms100); 19201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 19211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int ms100 : break signal time interval. 19221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * unit: 100 mini-second. if ms100 == 0, it will 19231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * send out a about 250 ms BREAK signal. 19241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 19251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 19261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint MoxaPortIsValid(int port) 19271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (moxaCard == 0) 19301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 19318f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby if (moxa_ports[port].chkPort == 0) 19321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 19331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (1); 19341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid MoxaPortEnable(int port) 19371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 19391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int MoxaPortLineStatus(int); 19401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds short lowwater = 512; 19411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19428f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ofsAddr = moxa_ports[port].tableAddr; 19431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(lowwater, ofsAddr + Low_water); 19448f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby moxa_ports[port].breakCnt = 0; 19451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_ISA) || 19461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_PCI)) { 19471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetBreakIrq, 0); 19481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 19491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(readw(ofsAddr + HostStat) | WakeupBreak, ofsAddr + HostStat); 19501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetLineIrq, Magic_code); 19531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_FlushQueue, 2); 19541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_EnableCH, Magic_code); 19561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortLineStatus(port); 19571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid MoxaPortDisable(int port) 19601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19618f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby void __iomem *ofsAddr = moxa_ports[port].tableAddr; 19621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetFlowCtl, 0); /* disable flow control */ 19641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_ClrLineIrq, Magic_code); 19651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0, ofsAddr + HostStat); 19661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_DisableCH, Magic_code); 19671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldslong MoxaPortGetMaxBaud(int port) 19701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_ISA) || 19721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_PCI)) 19731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (460800L); 19741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 19751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (921600L); 19761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldslong MoxaPortSetBaud(int port, long baud) 19801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 19821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds long max, clock; 19831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int val; 19841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((baud < 50L) || ((max = MoxaPortGetMaxBaud(port)) == 0)) 19861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 19878f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ofsAddr = moxa_ports[port].tableAddr; 19881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (baud > max) 19891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds baud = max; 19901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (max == 38400L) 19911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds clock = 614400L; /* for 9.8304 Mhz : max. 38400 bps */ 19921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (max == 57600L) 19931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds clock = 691200L; /* for 11.0592 Mhz : max. 57600 bps */ 19941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 19951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds clock = 921600L; /* for 14.7456 Mhz : max. 115200 bps */ 19961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = clock / baud; 19971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetBaud, val); 19981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds baud = clock / val; 19998f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby moxa_ports[port].curBaud = baud; 20001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (baud); 20011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2003606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Coxint MoxaPortSetTermio(int port, struct ktermios *termio, speed_t baud) 20041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 20051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 20061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tcflag_t cflag; 20071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tcflag_t mode = 0; 20081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20098f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby if (moxa_ports[port].chkPort == 0 || termio == 0) 20101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-1); 20118f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ofsAddr = moxa_ports[port].tableAddr; 20121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cflag = termio->c_cflag; /* termio->c_cflag */ 20131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode = termio->c_cflag & CSIZE; 20151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (mode == CS5) 20161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode = MX_CS5; 20171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (mode == CS6) 20181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode = MX_CS6; 20191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (mode == CS7) 20201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode = MX_CS7; 20211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (mode == CS8) 20221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode = MX_CS8; 20231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (termio->c_cflag & CSTOPB) { 20251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (mode == MX_CS5) 20261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= MX_STOP15; 20271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 20281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= MX_STOP2; 20291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 20301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= MX_STOP1; 20311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (termio->c_cflag & PARENB) { 20331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (termio->c_cflag & PARODD) 20341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= MX_PARODD; 20351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 20361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= MX_PAREVEN; 20371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 20381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= MX_PARNONE; 20391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetDataMode, (ushort) mode); 20411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_ISA) || 20431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_PCI)) { 2044c7bce3097c0f9bbed76ee6fd03742f2624031a45Alan Cox if (baud >= 921600L) 20451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-1); 20461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2047db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox baud = MoxaPortSetBaud(port, baud); 20481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (termio->c_iflag & (IXON | IXOFF | IXANY)) { 20501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(termio->c_cc[VSTART], ofsAddr + FuncArg); 20511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(termio->c_cc[VSTOP], ofsAddr + FuncArg1); 20521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(FC_SetXonXoff, ofsAddr + FuncCode); 20536f56b658b4e5c4486641ce62f331150954c4de37Jiri Slaby moxa_wait_finish(ofsAddr); 20541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2056db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox return (baud); 20571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint MoxaPortGetLineOut(int port, int *dtrState, int *rtsState) 20601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 20611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!MoxaPortIsValid(port)) 20631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-1); 20641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dtrState) { 20658f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby if (moxa_ports[port].lineCtrl & DTR_ON) 20661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *dtrState = 1; 20671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 20681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *dtrState = 0; 20691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rtsState) { 20718f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby if (moxa_ports[port].lineCtrl & RTS_ON) 20721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *rtsState = 1; 20731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 20741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *rtsState = 0; 20751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 20771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid MoxaPortLineCtrl(int port, int dtr, int rts) 20801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 20811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 20821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mode; 20831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20848f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ofsAddr = moxa_ports[port].tableAddr; 20851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode = 0; 20861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dtr) 20871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= DTR_ON; 20881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rts) 20891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= RTS_ON; 20908f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby moxa_ports[port].lineCtrl = mode; 20911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_LineControl, mode); 20921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid MoxaPortFlowCtrl(int port, int rts, int cts, int txflow, int rxflow, int txany) 20951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 20961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 20971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mode; 20981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20998f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ofsAddr = moxa_ports[port].tableAddr; 21001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode = 0; 21011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rts) 21021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= RTS_FlowCtl; 21031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cts) 21041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= CTS_FlowCtl; 21051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (txflow) 21061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= Tx_FlowCtl; 21071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rxflow) 21081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= Rx_FlowCtl; 21091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (txany) 21101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= IXM_IXANY; 21111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetFlowCtl, mode); 21121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint MoxaPortLineStatus(int port) 21151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 21171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val; 21181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21198f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ofsAddr = moxa_ports[port].tableAddr; 21201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_ISA) || 21211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_PCI)) { 21221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_LineStatus, 0); 21231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = readw(ofsAddr + FuncArg); 21241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 21251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = readw(ofsAddr + FlagStat) >> 4; 21261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val &= 0x0B; 21281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val & 8) { 21291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val |= 4; 21308f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby if ((moxa_ports[port].DCDState & DCD_oldstate) == 0) 21318f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby moxa_ports[port].DCDState = (DCD_oldstate | DCD_changed); 21321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 21338f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby if (moxa_ports[port].DCDState & DCD_oldstate) 21348f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby moxa_ports[port].DCDState = DCD_changed; 21351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val &= 7; 21371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (val); 21381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint MoxaPortDCDChange(int port) 21411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int n; 21431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21448f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby if (moxa_ports[port].chkPort == 0) 21451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 21468f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby n = moxa_ports[port].DCDState; 21478f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby moxa_ports[port].DCDState &= ~DCD_changed; 21481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds n &= DCD_changed; 21491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (n); 21501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint MoxaPortDCDON(int port) 21531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int n; 21551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21568f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby if (moxa_ports[port].chkPort == 0) 21571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 21588f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby if (moxa_ports[port].DCDState & DCD_oldstate) 21591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds n = 1; 21601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 21611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds n = 0; 21621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (n); 21631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint MoxaPortWriteData(int port, unsigned char * buffer, int len) 21661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int c, total, i; 21681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort tail; 21691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int cnt; 21701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort head, tx_mask, spage, epage; 21711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort pageno, pageofs, bufhead; 21721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *baseAddr, *ofsAddr, *ofs; 21731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21748f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ofsAddr = moxa_ports[port].tableAddr; 21758f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby baseAddr = moxa_boards[port / MAX_PORTS_PER_BOARD].basemem; 21761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tx_mask = readw(ofsAddr + TX_mask); 21771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spage = readw(ofsAddr + Page_txb); 21781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds epage = readw(ofsAddr + EndPage_txb); 21791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tail = readw(ofsAddr + TXwptr); 21801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds head = readw(ofsAddr + TXrptr); 21811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds c = (head > tail) ? (head - tail - 1) 21821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds : (head - tail + tx_mask); 21831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (c > len) 21841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds c = len; 21851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaLog.txcnt[port] += c; 21861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds total = c; 21871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (spage == epage) { 21881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bufhead = readw(ofsAddr + Ofs_txb); 21891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(spage, baseAddr + Control_reg); 21901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (c > 0) { 21911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (head > tail) 21921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = head - tail - 1; 21931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 21941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = tx_mask + 1 - tail; 21951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = (c > len) ? len : c; 21961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofs = baseAddr + DynPage_addr + bufhead + tail; 21971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < len; i++) 21981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(*buffer++, ofs + i); 21991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tail = (tail + len) & tx_mask; 22001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds c -= len; 22011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(tail, ofsAddr + TXwptr); 22031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 22041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = c; 22051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageno = spage + (tail >> 13); 22061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageofs = tail & Page_mask; 22071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do { 22081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cnt = Page_size - pageofs; 22091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cnt > c) 22101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cnt = c; 22111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds c -= cnt; 22121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(pageno, baseAddr + Control_reg); 22131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofs = baseAddr + DynPage_addr + pageofs; 22141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < cnt; i++) 22151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(*buffer++, ofs + i); 22161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (c == 0) { 22171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew((tail + len) & tx_mask, ofsAddr + TXwptr); 22181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 22191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (++pageno == epage) 22211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageno = spage; 22221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageofs = 0; 22231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } while (1); 22241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(1, ofsAddr + CD180TXirq); /* start to send */ 22261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (total); 22271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 222933f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Coxint MoxaPortReadData(int port, struct tty_struct *tty) 22301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 22311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds register ushort head, pageofs; 22321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, count, cnt, len, total, remain; 22331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort tail, rx_mask, spage, epage; 22341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort pageno, bufhead; 22351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *baseAddr, *ofsAddr, *ofs; 22361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22378f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ofsAddr = moxa_ports[port].tableAddr; 22388f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby baseAddr = moxa_boards[port / MAX_PORTS_PER_BOARD].basemem; 22391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds head = readw(ofsAddr + RXrptr); 22401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tail = readw(ofsAddr + RXwptr); 22411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rx_mask = readw(ofsAddr + RX_mask); 22421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spage = readw(ofsAddr + Page_rxb); 22431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds epage = readw(ofsAddr + EndPage_rxb); 22441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count = (tail >= head) ? (tail - head) 22451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds : (tail - head + rx_mask + 1); 22461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (count == 0) 224733f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox return 0; 22481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 224933f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox total = count; 22501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds remain = count - total; 22511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaLog.rxcnt[port] += total; 22521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count = total; 22531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (spage == epage) { 22541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bufhead = readw(ofsAddr + Ofs_rxb); 22551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(spage, baseAddr + Control_reg); 22561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (count > 0) { 22571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tail >= head) 22581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = tail - head; 22591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 22601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = rx_mask + 1 - head; 22611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = (count > len) ? len : count; 22621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofs = baseAddr + DynPage_addr + bufhead + head; 22631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < len; i++) 226433f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox tty_insert_flip_char(tty, readb(ofs + i), TTY_NORMAL); 22651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds head = (head + len) & rx_mask; 22661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count -= len; 22671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(head, ofsAddr + RXrptr); 22691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 22701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = count; 22711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageno = spage + (head >> 13); 22721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageofs = head & Page_mask; 22731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do { 22741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cnt = Page_size - pageofs; 22751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cnt > count) 22761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cnt = count; 22771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count -= cnt; 22781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(pageno, baseAddr + Control_reg); 22791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofs = baseAddr + DynPage_addr + pageofs; 22801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < cnt; i++) 228133f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox tty_insert_flip_char(tty, readb(ofs + i), TTY_NORMAL); 22821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (count == 0) { 22831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew((head + len) & rx_mask, ofsAddr + RXrptr); 22841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 22851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (++pageno == epage) 22871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageno = spage; 22881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageofs = 0; 22891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } while (1); 22901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((readb(ofsAddr + FlagStat) & Xoff_state) && (remain < LowWater)) { 22921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaLowWaterChk = 1; 22938f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby moxa_ports[port].lowChkFlag = 1; 22941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (total); 22961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint MoxaPortTxQueue(int port) 23001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 23011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 23021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort rptr, wptr, mask; 23031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int len; 23041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23058f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ofsAddr = moxa_ports[port].tableAddr; 23061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rptr = readw(ofsAddr + TXrptr); 23071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wptr = readw(ofsAddr + TXwptr); 23081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mask = readw(ofsAddr + TX_mask); 23091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = (wptr - rptr) & mask; 23101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (len); 23111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint MoxaPortTxFree(int port) 23141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 23151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 23161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort rptr, wptr, mask; 23171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int len; 23181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23198f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ofsAddr = moxa_ports[port].tableAddr; 23201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rptr = readw(ofsAddr + TXrptr); 23211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wptr = readw(ofsAddr + TXwptr); 23221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mask = readw(ofsAddr + TX_mask); 23231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = mask - ((wptr - rptr) & mask); 23241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (len); 23251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint MoxaPortRxQueue(int port) 23281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 23291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 23301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort rptr, wptr, mask; 23311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int len; 23321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23338f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ofsAddr = moxa_ports[port].tableAddr; 23341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rptr = readw(ofsAddr + RXrptr); 23351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wptr = readw(ofsAddr + RXwptr); 23361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mask = readw(ofsAddr + RX_mask); 23371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = (wptr - rptr) & mask; 23381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (len); 23391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid MoxaPortTxDisable(int port) 23431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 23441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 23451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23468f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ofsAddr = moxa_ports[port].tableAddr; 23471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetXoffState, Magic_code); 23481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid MoxaPortTxEnable(int port) 23511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 23521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 23531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23548f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ofsAddr = moxa_ports[port].tableAddr; 23551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetXonState, Magic_code); 23561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint MoxaPortResetBrkCnt(int port) 23601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 23611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort cnt; 23628f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby cnt = moxa_ports[port].breakCnt; 23638f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby moxa_ports[port].breakCnt = 0; 23641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (cnt); 23651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid MoxaPortSendBreak(int port, int ms100) 23691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 23701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 23711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23728f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ofsAddr = moxa_ports[port].tableAddr; 23731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ms100) { 23741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SendBreak, Magic_code); 237524c032f1dd393c995545ecefa8c1585ae9ef6b37Jiri Slaby msleep(ms100 * 10); 23761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 23771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SendBreak, Magic_code); 237824c032f1dd393c995545ecefa8c1585ae9ef6b37Jiri Slaby msleep(250); 23791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_StopBreak, Magic_code); 23811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23838f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slabystatic int moxa_get_serial_info(struct moxa_port *info, 23841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct serial_struct __user *retinfo) 23851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 23861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct serial_struct tmp; 23871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&tmp, 0, sizeof(tmp)); 23891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp.type = info->type; 23901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp.line = info->port; 23911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp.port = 0; 23921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp.irq = 0; 23931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp.flags = info->asyncflags; 23941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp.baud_base = 921600; 23951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp.close_delay = info->close_delay; 23961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp.closing_wait = info->closing_wait; 23971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp.custom_divisor = 0; 23981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp.hub6 = 0; 23991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(copy_to_user(retinfo, &tmp, sizeof(*retinfo))) 24001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 24011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 24021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24058f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slabystatic int moxa_set_serial_info(struct moxa_port *info, 24061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct serial_struct __user *new_info) 24071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 24081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct serial_struct new_serial; 24091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(copy_from_user(&new_serial, new_info, sizeof(new_serial))) 24111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 24121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((new_serial.irq != 0) || 24141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (new_serial.port != 0) || 24151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds// (new_serial.type != info->type) || 24161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (new_serial.custom_divisor != 0) || 24171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (new_serial.baud_base != 921600)) 24181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-EPERM); 24191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_ADMIN)) { 24211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (((new_serial.flags & ~ASYNC_USR_MASK) != 24221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (info->asyncflags & ~ASYNC_USR_MASK))) 24231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-EPERM); 24241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 24251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->close_delay = new_serial.close_delay * HZ / 100; 24261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->closing_wait = new_serial.closing_wait * HZ / 100; 24271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_serial.flags = (new_serial.flags & ~ASYNC_FLAGS); 24301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_serial.flags |= (info->asyncflags & ASYNC_FLAGS); 24311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (new_serial.type == PORT_16550A) { 24331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaSetFifo(info->port, 1); 24341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 24351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaSetFifo(info->port, 0); 24361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->type = new_serial.type; 24391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 24401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/***************************************************************************** 24451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Static local functions: * 24461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *****************************************************************************/ 24471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxafunc(void __iomem *ofsAddr, int cmd, ushort arg) 24481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 24491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(arg, ofsAddr + FuncArg); 24511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(cmd, ofsAddr + FuncCode); 24526f56b658b4e5c4486641ce62f331150954c4de37Jiri Slaby moxa_wait_finish(ofsAddr); 24531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24556f56b658b4e5c4486641ce62f331150954c4de37Jiri Slabystatic void moxa_wait_finish(void __iomem *ofsAddr) 24561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 24571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long i, j; 24581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = jiffies; 24601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (readw(ofsAddr + FuncCode) != 0) { 24611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds j = jiffies; 24621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((j - i) > moxaFuncTout) { 24631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 24641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24686f56b658b4e5c4486641ce62f331150954c4de37Jiri Slabystatic void moxa_low_water_check(void __iomem *ofsAddr) 24691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 24701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int len; 24711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort rptr, wptr, mask; 24721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readb(ofsAddr + FlagStat) & Xoff_state) { 24741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rptr = readw(ofsAddr + RXrptr); 24751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wptr = readw(ofsAddr + RXwptr); 24761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mask = readw(ofsAddr + RX_mask); 24771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = (wptr - rptr) & mask; 24781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (len <= Low_water) 24791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SendXon, 0); 24801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxaloadbios(int cardno, unsigned char __user *tmp, int len) 24841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 24851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *baseAddr; 24861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 24871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2488a2f72982e22b96862f8f15272732bd316d4db040dann frazier if(len < 0 || len > sizeof(moxaBuff)) 2489a2f72982e22b96862f8f15272732bd316d4db040dann frazier return -EINVAL; 24901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(copy_from_user(moxaBuff, tmp, len)) 24911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 24928f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby baseAddr = moxa_boards[cardno].basemem; 24931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(HW_reset, baseAddr + Control_reg); /* reset */ 249424c032f1dd393c995545ecefa8c1585ae9ef6b37Jiri Slaby msleep(10); 24951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 4096; i++) 24961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(0, baseAddr + i); /* clear fix page */ 24971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < len; i++) 24981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(moxaBuff[i], baseAddr + i); /* download BIOS */ 24991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(0, baseAddr + Control_reg); /* restart */ 25001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 25011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 25021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxafindcard(int cardno) 25041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 25051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *baseAddr; 25061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort tmp; 25071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25088f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby baseAddr = moxa_boards[cardno].basemem; 25091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (moxa_boards[cardno].boardType) { 25101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_BOARD_C218_ISA: 25111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_BOARD_C218_PCI: 25121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((tmp = readw(baseAddr + C218_key)) != C218_KeyCode) { 25131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-1); 25141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 25151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 25161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_BOARD_CP204J: 25171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((tmp = readw(baseAddr + C218_key)) != CP204J_KeyCode) { 25181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-1); 25191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 25201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 25211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 25221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((tmp = readw(baseAddr + C320_key)) != C320_KeyCode) { 25231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-1); 25241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 25251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((tmp = readw(baseAddr + C320_status)) != STS_init) { 25261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-2); 25271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 25281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 25291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 25301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 25311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxaload320b(int cardno, unsigned char __user *tmp, int len) 25331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 25341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *baseAddr; 25351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 25361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2537a2f72982e22b96862f8f15272732bd316d4db040dann frazier if(len < 0 || len > sizeof(moxaBuff)) 25381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 25391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(copy_from_user(moxaBuff, tmp, len)) 25401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 25418f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby baseAddr = moxa_boards[cardno].basemem; 25421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(len - 7168 - 2, baseAddr + C320bapi_len); 25431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(1, baseAddr + Control_reg); /* Select Page 1 */ 25441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 7168; i++) 25451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(moxaBuff[i], baseAddr + DynPage_addr + i); 25461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(2, baseAddr + Control_reg); /* Select Page 2 */ 25471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < (len - 7168); i++) 25481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(moxaBuff[i + 7168], baseAddr + DynPage_addr + i); 25491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 25501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 25511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxaloadcode(int cardno, unsigned char __user *tmp, int len) 25531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 25541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *baseAddr, *ofsAddr; 25551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int retval, port, i; 25561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2557a2f72982e22b96862f8f15272732bd316d4db040dann frazier if(len < 0 || len > sizeof(moxaBuff)) 2558a2f72982e22b96862f8f15272732bd316d4db040dann frazier return -EINVAL; 25591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(copy_from_user(moxaBuff, tmp, len)) 25601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 25618f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby baseAddr = moxa_boards[cardno].basemem; 25621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (moxa_boards[cardno].boardType) { 25631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_BOARD_C218_ISA: 25641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_BOARD_C218_PCI: 25651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_BOARD_CP204J: 25661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retval = moxaloadc218(cardno, baseAddr, len); 25671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) 25681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (retval); 25691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port = cardno * MAX_PORTS_PER_BOARD; 25701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < moxa_boards[cardno].numPorts; i++, port++) { 25718f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *p = &moxa_ports[port]; 25728f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby 25738f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby p->chkPort = 1; 25748f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby p->curBaud = 9600L; 25758f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby p->DCDState = 0; 25768f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby p->tableAddr = baseAddr + Extern_table + Extern_size * i; 25778f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ofsAddr = p->tableAddr; 25781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C218rx_mask, ofsAddr + RX_mask); 25791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C218tx_mask, ofsAddr + TX_mask); 25801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C218rx_spage + i * C218buf_pageno, ofsAddr + Page_rxb); 25811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(readw(ofsAddr + Page_rxb) + C218rx_pageno, ofsAddr + EndPage_rxb); 25821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C218tx_spage + i * C218buf_pageno, ofsAddr + Page_txb); 25841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(readw(ofsAddr + Page_txb) + C218tx_pageno, ofsAddr + EndPage_txb); 25851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 25871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 25881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 25891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retval = moxaloadc320(cardno, baseAddr, len, 25901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &moxa_boards[cardno].numPorts); 25911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) 25921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (retval); 25931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port = cardno * MAX_PORTS_PER_BOARD; 25941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < moxa_boards[cardno].numPorts; i++, port++) { 25958f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *p = &moxa_ports[port]; 25968f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby 25978f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby p->chkPort = 1; 25988f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby p->curBaud = 9600L; 25998f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby p->DCDState = 0; 26008f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby p->tableAddr = baseAddr + Extern_table + Extern_size * i; 26018f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby ofsAddr = p->tableAddr; 26021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (moxa_boards[cardno].numPorts == 8) { 26031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p8rx_mask, ofsAddr + RX_mask); 26041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p8tx_mask, ofsAddr + TX_mask); 26051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p8rx_spage + i * C320p8buf_pgno, ofsAddr + Page_rxb); 26061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(readw(ofsAddr + Page_rxb) + C320p8rx_pgno, ofsAddr + EndPage_rxb); 26071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p8tx_spage + i * C320p8buf_pgno, ofsAddr + Page_txb); 26081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(readw(ofsAddr + Page_txb) + C320p8tx_pgno, ofsAddr + EndPage_txb); 26091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (moxa_boards[cardno].numPorts == 16) { 26111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p16rx_mask, ofsAddr + RX_mask); 26121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p16tx_mask, ofsAddr + TX_mask); 26131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p16rx_spage + i * C320p16buf_pgno, ofsAddr + Page_rxb); 26141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(readw(ofsAddr + Page_rxb) + C320p16rx_pgno, ofsAddr + EndPage_rxb); 26151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p16tx_spage + i * C320p16buf_pgno, ofsAddr + Page_txb); 26161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(readw(ofsAddr + Page_txb) + C320p16tx_pgno, ofsAddr + EndPage_txb); 26171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (moxa_boards[cardno].numPorts == 24) { 26191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p24rx_mask, ofsAddr + RX_mask); 26201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p24tx_mask, ofsAddr + TX_mask); 26211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p24rx_spage + i * C320p24buf_pgno, ofsAddr + Page_rxb); 26221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(readw(ofsAddr + Page_rxb) + C320p24rx_pgno, ofsAddr + EndPage_rxb); 26231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p24tx_spage + i * C320p24buf_pgno, ofsAddr + Page_txb); 26241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(readw(ofsAddr + Page_txb), ofsAddr + EndPage_txb); 26251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (moxa_boards[cardno].numPorts == 32) { 26261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p32rx_mask, ofsAddr + RX_mask); 26271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p32tx_mask, ofsAddr + TX_mask); 26281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p32tx_ofs, ofsAddr + Ofs_txb); 26291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p32rx_spage + i * C320p32buf_pgno, ofsAddr + Page_rxb); 26301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(readb(ofsAddr + Page_rxb), ofsAddr + EndPage_rxb); 26311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(C320p32tx_spage + i * C320p32buf_pgno, ofsAddr + Page_txb); 26321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(readw(ofsAddr + Page_txb), ofsAddr + EndPage_txb); 26331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 26341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 26351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 26361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 26378f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby moxa_boards[cardno].loadstat = 1; 26381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 26391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 26401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxaloadc218(int cardno, void __iomem *baseAddr, int len) 26421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 26431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char retry; 26441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, j, len1, len2; 26451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort usum, *ptr, keycode; 26461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (moxa_boards[cardno].boardType == MOXA_BOARD_CP204J) 26481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds keycode = CP204J_KeyCode; 26491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 26501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds keycode = C218_KeyCode; 26511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds usum = 0; 26521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len1 = len >> 1; 26531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ptr = (ushort *) moxaBuff; 26541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < len1; i++) 265501cfaf0d12ae5fa092cc916ca4066ee1598e857dDirk Eibach usum += le16_to_cpu(*(ptr + i)); 26561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retry = 0; 26571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do { 26581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len1 = len >> 1; 26591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds j = 0; 26601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (len1) { 26611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len2 = (len1 > 2048) ? 2048 : len1; 26621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len1 -= len2; 26631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < len2 << 1; i++) 26641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(moxaBuff[i + j], baseAddr + C218_LoadBuf + i); 26651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds j += i; 26661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(len2, baseAddr + C218DLoad_len); 26681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0, baseAddr + C218_key); 26691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 100; i++) { 26701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + C218_key) == keycode) 26711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 267224c032f1dd393c995545ecefa8c1585ae9ef6b37Jiri Slaby msleep(10); 26731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 26741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + C218_key) != keycode) { 26751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-1); 26761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 26771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 26781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0, baseAddr + C218DLoad_len); 26791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(usum, baseAddr + C218check_sum); 26801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0, baseAddr + C218_key); 26811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 100; i++) { 26821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + C218_key) == keycode) 26831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 268424c032f1dd393c995545ecefa8c1585ae9ef6b37Jiri Slaby msleep(10); 26851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 26861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retry++; 26871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } while ((readb(baseAddr + C218chksum_ok) != 1) && (retry < 3)); 26881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readb(baseAddr + C218chksum_ok) != 1) { 26891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-1); 26901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 26911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0, baseAddr + C218_key); 26921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 100; i++) { 26931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + Magic_no) == Magic_code) 26941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 269524c032f1dd393c995545ecefa8c1585ae9ef6b37Jiri Slaby msleep(10); 26961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 26971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + Magic_no) != Magic_code) { 26981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-1); 26991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(1, baseAddr + Disable_IRQ); 27011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0, baseAddr + Magic_no); 27021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 100; i++) { 27031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + Magic_no) == Magic_code) 27041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 270524c032f1dd393c995545ecefa8c1585ae9ef6b37Jiri Slaby msleep(10); 27061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + Magic_no) != Magic_code) { 27081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-1); 27091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaCard = 1; 27118f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby moxa_boards[cardno].intNdx = baseAddr + IRQindex; 27128f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby moxa_boards[cardno].intPend = baseAddr + IRQpending; 27138f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby moxa_boards[cardno].intTable = baseAddr + IRQtable; 27141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 27151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 27161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxaloadc320(int cardno, void __iomem *baseAddr, int len, int *numPorts) 27181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 27191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort usum; 27201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, j, wlen, len2, retry; 27211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ushort *uptr; 27221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds usum = 0; 27241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wlen = len >> 1; 27251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds uptr = (ushort *) moxaBuff; 27261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < wlen; i++) 272701cfaf0d12ae5fa092cc916ca4066ee1598e857dDirk Eibach usum += le16_to_cpu(uptr[i]); 27281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retry = 0; 27291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds j = 0; 27301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do { 27311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (wlen) { 27321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (wlen > 2048) 27331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len2 = 2048; 27341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 27351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len2 = wlen; 27361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wlen -= len2; 27371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len2 <<= 1; 27381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < len2; i++) 27391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(moxaBuff[j + i], baseAddr + C320_LoadBuf + i); 27401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len2 >>= 1; 27411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds j += i; 27421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(len2, baseAddr + C320DLoad_len); 27431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0, baseAddr + C320_key); 27441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 10; i++) { 27451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + C320_key) == C320_KeyCode) 27461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 274724c032f1dd393c995545ecefa8c1585ae9ef6b37Jiri Slaby msleep(10); 27481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + C320_key) != C320_KeyCode) 27501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-1); 27511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0, baseAddr + C320DLoad_len); 27531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(usum, baseAddr + C320check_sum); 27541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0, baseAddr + C320_key); 27551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 10; i++) { 27561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + C320_key) == C320_KeyCode) 27571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 275824c032f1dd393c995545ecefa8c1585ae9ef6b37Jiri Slaby msleep(10); 27591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retry++; 27611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } while ((readb(baseAddr + C320chksum_ok) != 1) && (retry < 3)); 27621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readb(baseAddr + C320chksum_ok) != 1) 27631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-1); 27641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0, baseAddr + C320_key); 27651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 600; i++) { 27661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + Magic_no) == Magic_code) 27671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 276824c032f1dd393c995545ecefa8c1585ae9ef6b37Jiri Slaby msleep(10); 27691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + Magic_no) != Magic_code) 27711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-100); 27721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (moxa_boards[cardno].busType == MOXA_BUS_TYPE_PCI) { /* ASIC board */ 27741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0x3800, baseAddr + TMS320_PORT1); 27751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0x3900, baseAddr + TMS320_PORT2); 27761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(28499, baseAddr + TMS320_CLOCK); 27771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 27781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0x3200, baseAddr + TMS320_PORT1); 27791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0x3400, baseAddr + TMS320_PORT2); 27801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(19999, baseAddr + TMS320_CLOCK); 27811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(1, baseAddr + Disable_IRQ); 27831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0, baseAddr + Magic_no); 27841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 500; i++) { 27851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + Magic_no) == Magic_code) 27861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 278724c032f1dd393c995545ecefa8c1585ae9ef6b37Jiri Slaby msleep(10); 27881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + Magic_no) != Magic_code) 27901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-102); 27911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds j = readw(baseAddr + Module_cnt); 27931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (j <= 0) 27941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-101); 27951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *numPorts = j * 8; 27961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(j, baseAddr + Module_no); 27971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0, baseAddr + Magic_no); 27981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 600; i++) { 27991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + Magic_no) == Magic_code) 28001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 280124c032f1dd393c995545ecefa8c1585ae9ef6b37Jiri Slaby msleep(10); 28021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 28031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (readw(baseAddr + Magic_no) != Magic_code) 28041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-102); 28051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaCard = 1; 28068f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby moxa_boards[cardno].intNdx = baseAddr + IRQindex; 28078f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby moxa_boards[cardno].intPend = baseAddr + IRQpending; 28088f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby moxa_boards[cardno].intTable = baseAddr + IRQtable; 28091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 28101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 28111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 28121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void MoxaSetFifo(int port, int enable) 28131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 28148f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby void __iomem *ofsAddr = moxa_ports[port].tableAddr; 28151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 28161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!enable) { 28171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetRxFIFOTrig, 0); 28181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetTxFIFOCnt, 1); 28191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 28201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetRxFIFOTrig, 3); 28211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetTxFIFOCnt, 16); 28221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 28231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2824