moxa.c revision f710ebd7f70801e31751f2c49fe4b92a477d24eb
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/*****************************************************************************/ 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * moxa.c -- MOXA Intellio family multiport serial driver. 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 5b9705b603d1d29471aa2977e6310f4f9a4e85925Jiri Slaby * Copyright (C) 1999-2000 Moxa Technologies (support@moxa.com). 6b9705b603d1d29471aa2977e6310f4f9a4e85925Jiri Slaby * Copyright (c) 2007 Jiri Slaby <jirislaby@gmail.com> 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This code is loosely based on the Linux serial driver, written by 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Linus Torvalds, Theodore T'so and others. 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is free software; you can redistribute it and/or modify 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it under the terms of the GNU General Public License as published by 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the Free Software Foundation; either version 2 of the License, or 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (at your option) any later version. 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * MOXA Intellio Series Driver 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for : LINUX 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * date : 1999/1/7 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * version : 5.1 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/types.h> 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/mm.h> 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/ioport.h> 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/errno.h> 29037182346f0991683cc7320a257c3f6089432ceeJiri Slaby#include <linux/firmware.h> 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/signal.h> 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/sched.h> 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/timer.h> 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/interrupt.h> 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/tty.h> 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/tty_flip.h> 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/major.h> 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/string.h> 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/fcntl.h> 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/ptrace.h> 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/serial.h> 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/tty_driver.h> 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/delay.h> 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/pci.h> 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/bitops.h> 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/system.h> 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/io.h> 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/uaccess.h> 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 51037182346f0991683cc7320a257c3f6089432ceeJiri Slaby#include "moxa.h" 52037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 53b9705b603d1d29471aa2977e6310f4f9a4e85925Jiri Slaby#define MOXA_VERSION "6.0k" 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 55037182346f0991683cc7320a257c3f6089432ceeJiri Slaby#define MOXA_FW_HDRLEN 32 56037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 5711324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby#define MOXAMAJOR 172 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5911324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby#define MAX_BOARDS 4 /* Don't change this value */ 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MAX_PORTS_PER_BOARD 32 /* Don't change this value */ 6111324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby#define MAX_PORTS (MAX_BOARDS * MAX_PORTS_PER_BOARD) 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6308d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby#define MOXA_IS_320(brd) ((brd)->boardType == MOXA_BOARD_C320_ISA || \ 6408d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby (brd)->boardType == MOXA_BOARD_C320_PCI) 6508d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Define the Moxa PCI vendor and device IDs. 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6911324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby#define MOXA_BUS_TYPE_ISA 0 7011324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby#define MOXA_BUS_TYPE_PCI 1 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsenum { 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MOXA_BOARD_C218_PCI = 1, 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MOXA_BOARD_C218_ISA, 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MOXA_BOARD_C320_PCI, 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MOXA_BOARD_C320_ISA, 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MOXA_BOARD_CP204J, 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic char *moxa_brdname[] = 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "C218 Turbo PCI series", 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "C218 Turbo ISA series", 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "C320 Turbo PCI series", 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "C320 Turbo ISA series", 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "CP-204J series", 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PCI 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct pci_device_id moxa_pcibrds[] = { 915ebb4078af0dab866fdf57f84f72b9e9a7e8c6b8Jiri Slaby { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C218), 925ebb4078af0dab866fdf57f84f72b9e9a7e8c6b8Jiri Slaby .driver_data = MOXA_BOARD_C218_PCI }, 935ebb4078af0dab866fdf57f84f72b9e9a7e8c6b8Jiri Slaby { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C320), 945ebb4078af0dab866fdf57f84f72b9e9a7e8c6b8Jiri Slaby .driver_data = MOXA_BOARD_C320_PCI }, 955ebb4078af0dab866fdf57f84f72b9e9a7e8c6b8Jiri Slaby { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP204J), 965ebb4078af0dab866fdf57f84f72b9e9a7e8c6b8Jiri Slaby .driver_data = MOXA_BOARD_CP204J }, 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DEVICE_TABLE(pci, moxa_pcibrds); 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_PCI */ 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 102037182346f0991683cc7320a257c3f6089432ceeJiri Slabystruct moxa_port; 103037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 1048f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slabystatic struct moxa_board_conf { 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int boardType; 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int numPorts; 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int busType; 1088f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby 109810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby unsigned int ready; 1108f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby 111037182346f0991683cc7320a257c3f6089432ceeJiri Slaby struct moxa_port *ports; 112037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 1138f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby void __iomem *basemem; 1148f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby void __iomem *intNdx; 1158f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby void __iomem *intPend; 1168f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby void __iomem *intTable; 1178f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby} moxa_boards[MAX_BOARDS]; 1188f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby 1198f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slabystruct mxser_mstatus { 1208f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby tcflag_t cflag; 1218f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby int cts; 1228f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby int dsr; 1238f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby int ri; 1248f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby int dcd; 1259dff89cd82af7bccc706fed288b1c33a51c3b937Jiri Slaby}; 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1278f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slabystruct moxaq_str { 1288f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby int inq; 1298f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby int outq; 1308f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby}; 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1328f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slabystruct moxa_port { 1339de6a51fee08f9e7020074738150441305e83af2Alan Cox struct tty_port port; 134b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby struct moxa_board_conf *board; 1357bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby void __iomem *tableAddr; 1367bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int type; 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int cflag; 1397bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby unsigned long statusflags; 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1418482bcd58530ad5857d7187854132f2b846db681Alan Cox u8 DCDState; /* Protected by the port lock */ 1427bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby u8 lineCtrl; 1437bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby u8 lowChkFlag; 1448f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby}; 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14674d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slabystruct mon_str { 14774d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby int tick; 14874d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby int rxcnt[MAX_PORTS]; 14974d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby int txcnt[MAX_PORTS]; 15074d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby}; 15174d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* statusflags */ 153a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox#define TXSTOPPED 1 154a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox#define LOWWAIT 2 155a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox#define EMPTYWAIT 3 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SERIAL_DO_RESTART 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define WAKEUP_CHARS 256 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int ttymajor = MOXAMAJOR; 16274d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slabystatic struct mon_str moxaLog; 16374d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slabystatic unsigned int moxaFuncTout = HZ / 2; 1647bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slabystatic unsigned int moxaLowWaterChk; 165a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slabystatic DEFINE_MUTEX(moxa_openlock); 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Variables for insmod */ 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef MODULE 168d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slabystatic unsigned long baseaddr[MAX_BOARDS]; 169d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slabystatic unsigned int type[MAX_BOARDS]; 170d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slabystatic unsigned int numports[MAX_BOARDS]; 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_AUTHOR("William Chen"); 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DESCRIPTION("MOXA Intellio Family Multiport Board Device Driver"); 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("GPL"); 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef MODULE 177d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slabymodule_param_array(type, uint, NULL, 0); 178d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri SlabyMODULE_PARM_DESC(type, "card type: C218=2, C320=4"); 179d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slabymodule_param_array(baseaddr, ulong, NULL, 0); 180d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri SlabyMODULE_PARM_DESC(baseaddr, "base address"); 181d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slabymodule_param_array(numports, uint, NULL, 0); 182d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri SlabyMODULE_PARM_DESC(numports, "numports (ignored for C218)"); 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_param(ttymajor, int, 0); 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * static functions: 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_open(struct tty_struct *, struct file *); 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_close(struct tty_struct *, struct file *); 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_write(struct tty_struct *, const unsigned char *, int); 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_write_room(struct tty_struct *); 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_flush_buffer(struct tty_struct *); 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_chars_in_buffer(struct tty_struct *); 195606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Coxstatic void moxa_set_termios(struct tty_struct *, struct ktermios *); 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_stop(struct tty_struct *); 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_start(struct tty_struct *); 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_hangup(struct tty_struct *); 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_tiocmget(struct tty_struct *tty, struct file *file); 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_tiocmset(struct tty_struct *tty, struct file *file, 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int set, unsigned int clear); 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_poll(unsigned long); 203db1acaa632870ec87b65e062bc72ca375837a1f6Alan Coxstatic void moxa_set_tty_param(struct tty_struct *, struct ktermios *); 204f176178ba09d27cc33988435e2c9fe078b44998cAlan Coxstatic void moxa_shutdown(struct tty_port *); 20531f35939d1d9bcfb3099b32c67b896d2792603f9Alan Coxstatic int moxa_carrier_raised(struct tty_port *); 206f176178ba09d27cc33988435e2c9fe078b44998cAlan Coxstatic void moxa_dtr_rts(struct tty_port *, int); 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * moxa board interface functions: 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 210b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortEnable(struct moxa_port *); 211b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortDisable(struct moxa_port *); 212b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortSetTermio(struct moxa_port *, struct ktermios *, speed_t); 213b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortGetLineOut(struct moxa_port *, int *, int *); 214b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortLineCtrl(struct moxa_port *, int, int); 215b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortFlowCtrl(struct moxa_port *, int, int, int, int, int); 216b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortLineStatus(struct moxa_port *); 217b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortFlushData(struct moxa_port *, int); 218d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Coxstatic int MoxaPortWriteData(struct tty_struct *, const unsigned char *, int); 2197bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slabystatic int MoxaPortReadData(struct moxa_port *); 220b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortTxQueue(struct moxa_port *); 221b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortRxQueue(struct moxa_port *); 222b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortTxFree(struct moxa_port *); 223b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortTxDisable(struct moxa_port *); 224b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortTxEnable(struct moxa_port *); 2258f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slabystatic int moxa_get_serial_info(struct moxa_port *, struct serial_struct __user *); 2268f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slabystatic int moxa_set_serial_info(struct moxa_port *, struct serial_struct __user *); 227b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaSetFifo(struct moxa_port *port, int enable); 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22974d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby/* 23074d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby * I/O functions 23174d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby */ 23274d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 233a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Coxstatic DEFINE_SPINLOCK(moxafunc_lock); 234a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox 23574d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slabystatic void moxa_wait_finish(void __iomem *ofsAddr) 23674d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby{ 23774d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby unsigned long end = jiffies + moxaFuncTout; 23874d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 23974d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby while (readw(ofsAddr + FuncCode) != 0) 24074d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby if (time_after(jiffies, end)) 24174d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby return; 24274d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby if (readw(ofsAddr + FuncCode) != 0 && printk_ratelimit()) 24374d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby printk(KERN_WARNING "moxa function expired\n"); 24474d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby} 24574d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 246eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slabystatic void moxafunc(void __iomem *ofsAddr, u16 cmd, u16 arg) 24774d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby{ 248f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox unsigned long flags; 249f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox spin_lock_irqsave(&moxafunc_lock, flags); 25074d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby writew(arg, ofsAddr + FuncArg); 25174d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby writew(cmd, ofsAddr + FuncCode); 25274d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby moxa_wait_finish(ofsAddr); 253f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox spin_unlock_irqrestore(&moxafunc_lock, flags); 254f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox} 255f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox 256f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Coxstatic int moxafuncret(void __iomem *ofsAddr, u16 cmd, u16 arg) 257f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox{ 258f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox unsigned long flags; 259f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox u16 ret; 260f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox spin_lock_irqsave(&moxafunc_lock, flags); 261f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox writew(arg, ofsAddr + FuncArg); 262f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox writew(cmd, ofsAddr + FuncCode); 263f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox moxa_wait_finish(ofsAddr); 264f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox ret = readw(ofsAddr + FuncArg); 265f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox spin_unlock_irqrestore(&moxafunc_lock, flags); 266f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox return ret; 26774d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby} 26874d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 2697bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slabystatic void moxa_low_water_check(void __iomem *ofsAddr) 2707bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby{ 2717bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby u16 rptr, wptr, mask, len; 2727bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 2737bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby if (readb(ofsAddr + FlagStat) & Xoff_state) { 2747bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby rptr = readw(ofsAddr + RXrptr); 2757bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby wptr = readw(ofsAddr + RXwptr); 2767bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby mask = readw(ofsAddr + RX_mask); 2777bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby len = (wptr - rptr) & mask; 2787bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby if (len <= Low_water) 2797bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby moxafunc(ofsAddr, FC_SendXon, 0); 2807bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby } 2817bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby} 2827bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 28374d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby/* 28474d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby * TTY operations 28574d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby */ 28674d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 28774d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slabystatic int moxa_ioctl(struct tty_struct *tty, struct file *file, 28874d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby unsigned int cmd, unsigned long arg) 28974d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby{ 29074d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby struct moxa_port *ch = tty->driver_data; 29174d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby void __user *argp = (void __user *)arg; 292a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby int status, ret = 0; 29374d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 29474d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby if (tty->index == MAX_PORTS) { 29574d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby if (cmd != MOXA_GETDATACOUNT && cmd != MOXA_GET_IOQUEUE && 29674d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby cmd != MOXA_GETMSTATUS) 29774d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby return -EINVAL; 29874d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby } else if (!ch) 29974d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby return -ENODEV; 30074d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 30174d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby switch (cmd) { 30274d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby case MOXA_GETDATACOUNT: 30374d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby moxaLog.tick = jiffies; 304a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby if (copy_to_user(argp, &moxaLog, sizeof(moxaLog))) 305a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby ret = -EFAULT; 306a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby break; 30774d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby case MOXA_FLUSH_QUEUE: 30874d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby MoxaPortFlushData(ch, arg); 309a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby break; 31074d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby case MOXA_GET_IOQUEUE: { 31174d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby struct moxaq_str __user *argm = argp; 31274d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby struct moxaq_str tmp; 31374d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby struct moxa_port *p; 31474d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby unsigned int i, j; 31574d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 316a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby mutex_lock(&moxa_openlock); 31774d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby for (i = 0; i < MAX_BOARDS; i++) { 31874d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby p = moxa_boards[i].ports; 31974d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby for (j = 0; j < MAX_PORTS_PER_BOARD; j++, p++, argm++) { 32074d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby memset(&tmp, 0, sizeof(tmp)); 32174d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby if (moxa_boards[i].ready) { 32274d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby tmp.inq = MoxaPortRxQueue(p); 32374d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby tmp.outq = MoxaPortTxQueue(p); 32474d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby } 325a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby if (copy_to_user(argm, &tmp, sizeof(tmp))) { 326a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby mutex_unlock(&moxa_openlock); 32774d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby return -EFAULT; 328a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby } 32974d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby } 33074d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby } 331a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby mutex_unlock(&moxa_openlock); 332a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby break; 33374d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby } case MOXA_GET_OQUEUE: 33474d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby status = MoxaPortTxQueue(ch); 335a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby ret = put_user(status, (unsigned long __user *)argp); 336a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby break; 33774d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby case MOXA_GET_IQUEUE: 33874d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby status = MoxaPortRxQueue(ch); 339a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby ret = put_user(status, (unsigned long __user *)argp); 340a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby break; 34174d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby case MOXA_GETMSTATUS: { 34274d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby struct mxser_mstatus __user *argm = argp; 34374d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby struct mxser_mstatus tmp; 34474d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby struct moxa_port *p; 34574d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby unsigned int i, j; 34674d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 347a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby mutex_lock(&moxa_openlock); 34874d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby for (i = 0; i < MAX_BOARDS; i++) { 34974d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby p = moxa_boards[i].ports; 35074d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby for (j = 0; j < MAX_PORTS_PER_BOARD; j++, p++, argm++) { 351d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox struct tty_struct *ttyp; 35274d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby memset(&tmp, 0, sizeof(tmp)); 35374d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby if (!moxa_boards[i].ready) 35474d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby goto copy; 35574d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 35674d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby status = MoxaPortLineStatus(p); 35774d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby if (status & 1) 35874d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby tmp.cts = 1; 35974d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby if (status & 2) 36074d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby tmp.dsr = 1; 36174d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby if (status & 4) 36274d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby tmp.dcd = 1; 36374d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 364d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox ttyp = tty_port_tty_get(&p->port); 365d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox if (!ttyp || !ttyp->termios) 36674d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby tmp.cflag = p->cflag; 36774d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby else 368d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox tmp.cflag = ttyp->termios->c_cflag; 369d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox tty_kref_put(tty); 37074d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slabycopy: 371a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby if (copy_to_user(argm, &tmp, sizeof(tmp))) { 372a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby mutex_unlock(&moxa_openlock); 37374d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby return -EFAULT; 374a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby } 37574d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby } 37674d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby } 377a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby mutex_unlock(&moxa_openlock); 378a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby break; 37974d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby } 38074d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby case TIOCGSERIAL: 381a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox mutex_lock(&ch->port.mutex); 382a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby ret = moxa_get_serial_info(ch, argp); 383a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox mutex_unlock(&ch->port.mutex); 384a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby break; 38574d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby case TIOCSSERIAL: 386a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox mutex_lock(&ch->port.mutex); 387a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby ret = moxa_set_serial_info(ch, argp); 388a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox mutex_unlock(&ch->port.mutex); 389a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby break; 390a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby default: 391a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby ret = -ENOIOCTLCMD; 39274d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby } 393a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby return ret; 39474d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby} 39574d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 3969e98966c7bb94355689478bc84cc3e0c190f977eAlan Coxstatic int moxa_break_ctl(struct tty_struct *tty, int state) 39774d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby{ 39874d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby struct moxa_port *port = tty->driver_data; 39974d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 40074d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby moxafunc(port->tableAddr, state ? FC_SendBreak : FC_StopBreak, 40174d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby Magic_code); 4029e98966c7bb94355689478bc84cc3e0c190f977eAlan Cox return 0; 40374d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby} 40474d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 405b68e31d0ebbcc909d1941f9f230c9d062a3a13d3Jeff Dikestatic const struct tty_operations moxa_ops = { 4061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .open = moxa_open, 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .close = moxa_close, 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .write = moxa_write, 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .write_room = moxa_write_room, 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .flush_buffer = moxa_flush_buffer, 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .chars_in_buffer = moxa_chars_in_buffer, 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .ioctl = moxa_ioctl, 4131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .set_termios = moxa_set_termios, 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .stop = moxa_stop, 4151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .start = moxa_start, 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .hangup = moxa_hangup, 41774d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby .break_ctl = moxa_break_ctl, 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .tiocmget = moxa_tiocmget, 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .tiocmset = moxa_tiocmset, 4201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 4211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 42231f35939d1d9bcfb3099b32c67b896d2792603f9Alan Coxstatic const struct tty_port_operations moxa_port_ops = { 42331f35939d1d9bcfb3099b32c67b896d2792603f9Alan Cox .carrier_raised = moxa_carrier_raised, 424f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox .dtr_rts = moxa_dtr_rts, 425f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox .shutdown = moxa_shutdown, 42631f35939d1d9bcfb3099b32c67b896d2792603f9Alan Cox}; 42731f35939d1d9bcfb3099b32c67b896d2792603f9Alan Cox 428aa7e5221fb47badbea618cc62704d6e4a4bcce15Jiri Slabystatic struct tty_driver *moxaDriver; 429aa7e5221fb47badbea618cc62704d6e4a4bcce15Jiri Slabystatic DEFINE_TIMER(moxaTimer, moxa_poll, 0, 0); 43034af946a22724c4e2b204957f2b24b22a0fb121cIngo Molnarstatic DEFINE_SPINLOCK(moxa_lock); 43133f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox 43274d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby/* 43374d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby * HW init 43474d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby */ 43574d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 436037182346f0991683cc7320a257c3f6089432ceeJiri Slabystatic int moxa_check_fw_model(struct moxa_board_conf *brd, u8 model) 437037182346f0991683cc7320a257c3f6089432ceeJiri Slaby{ 438037182346f0991683cc7320a257c3f6089432ceeJiri Slaby switch (brd->boardType) { 439037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_C218_ISA: 440037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_C218_PCI: 441037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (model != 1) 442037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 443037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 444037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_CP204J: 445037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (model != 3) 446037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 447037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 448037182346f0991683cc7320a257c3f6089432ceeJiri Slaby default: 449037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (model != 2) 450037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 451037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 452037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 453037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return 0; 454037182346f0991683cc7320a257c3f6089432ceeJiri Slabyerr: 455037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -EINVAL; 456037182346f0991683cc7320a257c3f6089432ceeJiri Slaby} 457037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 458037182346f0991683cc7320a257c3f6089432ceeJiri Slabystatic int moxa_check_fw(const void *ptr) 459037182346f0991683cc7320a257c3f6089432ceeJiri Slaby{ 460037182346f0991683cc7320a257c3f6089432ceeJiri Slaby const __le16 *lptr = ptr; 461037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 462037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (*lptr != cpu_to_le16(0x7980)) 463037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -EINVAL; 464037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 465037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return 0; 466037182346f0991683cc7320a257c3f6089432ceeJiri Slaby} 467037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 468037182346f0991683cc7320a257c3f6089432ceeJiri Slabystatic int moxa_load_bios(struct moxa_board_conf *brd, const u8 *buf, 469037182346f0991683cc7320a257c3f6089432ceeJiri Slaby size_t len) 470037182346f0991683cc7320a257c3f6089432ceeJiri Slaby{ 471037182346f0991683cc7320a257c3f6089432ceeJiri Slaby void __iomem *baseAddr = brd->basemem; 472037182346f0991683cc7320a257c3f6089432ceeJiri Slaby u16 tmp; 473037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 474037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writeb(HW_reset, baseAddr + Control_reg); /* reset */ 475037182346f0991683cc7320a257c3f6089432ceeJiri Slaby msleep(10); 476037182346f0991683cc7320a257c3f6089432ceeJiri Slaby memset_io(baseAddr, 0, 4096); 477037182346f0991683cc7320a257c3f6089432ceeJiri Slaby memcpy_toio(baseAddr, buf, len); /* download BIOS */ 478037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writeb(0, baseAddr + Control_reg); /* restart */ 479037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 480037182346f0991683cc7320a257c3f6089432ceeJiri Slaby msleep(2000); 481037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 482037182346f0991683cc7320a257c3f6089432ceeJiri Slaby switch (brd->boardType) { 483037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_C218_ISA: 484037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_C218_PCI: 485037182346f0991683cc7320a257c3f6089432ceeJiri Slaby tmp = readw(baseAddr + C218_key); 486037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (tmp != C218_KeyCode) 487037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 488037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 489037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_CP204J: 490037182346f0991683cc7320a257c3f6089432ceeJiri Slaby tmp = readw(baseAddr + C218_key); 491037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (tmp != CP204J_KeyCode) 492037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 493037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 494037182346f0991683cc7320a257c3f6089432ceeJiri Slaby default: 495037182346f0991683cc7320a257c3f6089432ceeJiri Slaby tmp = readw(baseAddr + C320_key); 496037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (tmp != C320_KeyCode) 497037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 498037182346f0991683cc7320a257c3f6089432ceeJiri Slaby tmp = readw(baseAddr + C320_status); 499037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (tmp != STS_init) { 500eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby printk(KERN_ERR "MOXA: bios upload failed -- CPU/Basic " 501037182346f0991683cc7320a257c3f6089432ceeJiri Slaby "module not found\n"); 502037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -EIO; 503037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 504037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 505037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 506037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 507037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return 0; 508037182346f0991683cc7320a257c3f6089432ceeJiri Slabyerr: 509eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby printk(KERN_ERR "MOXA: bios upload failed -- board not found\n"); 510037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -EIO; 511037182346f0991683cc7320a257c3f6089432ceeJiri Slaby} 512037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 513037182346f0991683cc7320a257c3f6089432ceeJiri Slabystatic int moxa_load_320b(struct moxa_board_conf *brd, const u8 *ptr, 514037182346f0991683cc7320a257c3f6089432ceeJiri Slaby size_t len) 515037182346f0991683cc7320a257c3f6089432ceeJiri Slaby{ 516037182346f0991683cc7320a257c3f6089432ceeJiri Slaby void __iomem *baseAddr = brd->basemem; 517037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 518037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (len < 7168) { 519eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby printk(KERN_ERR "MOXA: invalid 320 bios -- too short\n"); 520037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -EINVAL; 521037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 522037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 523037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(len - 7168 - 2, baseAddr + C320bapi_len); 524037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writeb(1, baseAddr + Control_reg); /* Select Page 1 */ 525037182346f0991683cc7320a257c3f6089432ceeJiri Slaby memcpy_toio(baseAddr + DynPage_addr, ptr, 7168); 526037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writeb(2, baseAddr + Control_reg); /* Select Page 2 */ 527037182346f0991683cc7320a257c3f6089432ceeJiri Slaby memcpy_toio(baseAddr + DynPage_addr, ptr + 7168, len - 7168); 528037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 529037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return 0; 530037182346f0991683cc7320a257c3f6089432ceeJiri Slaby} 531037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 5325292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slabystatic int moxa_real_load_code(struct moxa_board_conf *brd, const void *ptr, 533037182346f0991683cc7320a257c3f6089432ceeJiri Slaby size_t len) 534037182346f0991683cc7320a257c3f6089432ceeJiri Slaby{ 535037182346f0991683cc7320a257c3f6089432ceeJiri Slaby void __iomem *baseAddr = brd->basemem; 536b46f69cd24b9020433f8f153e7d9194b5bfdf5e2Harvey Harrison const __le16 *uptr = ptr; 537037182346f0991683cc7320a257c3f6089432ceeJiri Slaby size_t wlen, len2, j; 5385292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby unsigned long key, loadbuf, loadlen, checksum, checksum_ok; 53908d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby unsigned int i, retry; 540037182346f0991683cc7320a257c3f6089432ceeJiri Slaby u16 usum, keycode; 541037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 5425292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby keycode = (brd->boardType == MOXA_BOARD_CP204J) ? CP204J_KeyCode : 5435292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby C218_KeyCode; 544037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 5455292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby switch (brd->boardType) { 5465292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby case MOXA_BOARD_CP204J: 5475292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby case MOXA_BOARD_C218_ISA: 5485292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby case MOXA_BOARD_C218_PCI: 5495292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby key = C218_key; 5505292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby loadbuf = C218_LoadBuf; 5515292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby loadlen = C218DLoad_len; 5525292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby checksum = C218check_sum; 5535292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby checksum_ok = C218chksum_ok; 5545292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby break; 5555292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby default: 5565292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby key = C320_key; 5575292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby keycode = C320_KeyCode; 5585292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby loadbuf = C320_LoadBuf; 5595292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby loadlen = C320DLoad_len; 5605292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby checksum = C320check_sum; 5615292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby checksum_ok = C320chksum_ok; 5625292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby break; 563037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 564037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 565037182346f0991683cc7320a257c3f6089432ceeJiri Slaby usum = 0; 566037182346f0991683cc7320a257c3f6089432ceeJiri Slaby wlen = len >> 1; 567037182346f0991683cc7320a257c3f6089432ceeJiri Slaby for (i = 0; i < wlen; i++) 568037182346f0991683cc7320a257c3f6089432ceeJiri Slaby usum += le16_to_cpu(uptr[i]); 569037182346f0991683cc7320a257c3f6089432ceeJiri Slaby retry = 0; 570037182346f0991683cc7320a257c3f6089432ceeJiri Slaby do { 571037182346f0991683cc7320a257c3f6089432ceeJiri Slaby wlen = len >> 1; 572037182346f0991683cc7320a257c3f6089432ceeJiri Slaby j = 0; 573037182346f0991683cc7320a257c3f6089432ceeJiri Slaby while (wlen) { 574037182346f0991683cc7320a257c3f6089432ceeJiri Slaby len2 = (wlen > 2048) ? 2048 : wlen; 575037182346f0991683cc7320a257c3f6089432ceeJiri Slaby wlen -= len2; 5765292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby memcpy_toio(baseAddr + loadbuf, ptr + j, len2 << 1); 577037182346f0991683cc7320a257c3f6089432ceeJiri Slaby j += len2 << 1; 5785292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby 5795292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(len2, baseAddr + loadlen); 5805292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(0, baseAddr + key); 5815292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby for (i = 0; i < 100; i++) { 5825292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby if (readw(baseAddr + key) == keycode) 583037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 584037182346f0991683cc7320a257c3f6089432ceeJiri Slaby msleep(10); 585037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 5865292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby if (readw(baseAddr + key) != keycode) 587037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -EIO; 588037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 5895292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(0, baseAddr + loadlen); 5905292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(usum, baseAddr + checksum); 5915292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(0, baseAddr + key); 5925292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby for (i = 0; i < 100; i++) { 5935292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby if (readw(baseAddr + key) == keycode) 594037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 595037182346f0991683cc7320a257c3f6089432ceeJiri Slaby msleep(10); 596037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 597037182346f0991683cc7320a257c3f6089432ceeJiri Slaby retry++; 5985292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby } while ((readb(baseAddr + checksum_ok) != 1) && (retry < 3)); 5995292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby if (readb(baseAddr + checksum_ok) != 1) 600037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -EIO; 601037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 6025292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(0, baseAddr + key); 603037182346f0991683cc7320a257c3f6089432ceeJiri Slaby for (i = 0; i < 600; i++) { 604037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (readw(baseAddr + Magic_no) == Magic_code) 605037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 606037182346f0991683cc7320a257c3f6089432ceeJiri Slaby msleep(10); 607037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 608037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (readw(baseAddr + Magic_no) != Magic_code) 609037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -EIO; 610037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 61108d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby if (MOXA_IS_320(brd)) { 6125292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby if (brd->busType == MOXA_BUS_TYPE_PCI) { /* ASIC board */ 6135292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(0x3800, baseAddr + TMS320_PORT1); 6145292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(0x3900, baseAddr + TMS320_PORT2); 6155292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(28499, baseAddr + TMS320_CLOCK); 6165292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby } else { 6175292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(0x3200, baseAddr + TMS320_PORT1); 6185292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(0x3400, baseAddr + TMS320_PORT2); 6195292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(19999, baseAddr + TMS320_CLOCK); 6205292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby } 621037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 622037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(1, baseAddr + Disable_IRQ); 623037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(0, baseAddr + Magic_no); 624037182346f0991683cc7320a257c3f6089432ceeJiri Slaby for (i = 0; i < 500; i++) { 625037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (readw(baseAddr + Magic_no) == Magic_code) 626037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 627037182346f0991683cc7320a257c3f6089432ceeJiri Slaby msleep(10); 628037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 629037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (readw(baseAddr + Magic_no) != Magic_code) 630037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -EIO; 631037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 63208d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby if (MOXA_IS_320(brd)) { 6335292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby j = readw(baseAddr + Module_cnt); 6345292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby if (j <= 0) 6355292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby return -EIO; 6365292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby brd->numPorts = j * 8; 6375292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(j, baseAddr + Module_no); 6385292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(0, baseAddr + Magic_no); 6395292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby for (i = 0; i < 600; i++) { 6405292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby if (readw(baseAddr + Magic_no) == Magic_code) 6415292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby break; 6425292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby msleep(10); 6435292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby } 6445292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby if (readw(baseAddr + Magic_no) != Magic_code) 6455292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby return -EIO; 646037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 647037182346f0991683cc7320a257c3f6089432ceeJiri Slaby brd->intNdx = baseAddr + IRQindex; 648037182346f0991683cc7320a257c3f6089432ceeJiri Slaby brd->intPend = baseAddr + IRQpending; 649037182346f0991683cc7320a257c3f6089432ceeJiri Slaby brd->intTable = baseAddr + IRQtable; 650037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 651037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return 0; 652037182346f0991683cc7320a257c3f6089432ceeJiri Slaby} 653037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 654037182346f0991683cc7320a257c3f6089432ceeJiri Slabystatic int moxa_load_code(struct moxa_board_conf *brd, const void *ptr, 655037182346f0991683cc7320a257c3f6089432ceeJiri Slaby size_t len) 656037182346f0991683cc7320a257c3f6089432ceeJiri Slaby{ 657037182346f0991683cc7320a257c3f6089432ceeJiri Slaby void __iomem *ofsAddr, *baseAddr = brd->basemem; 658037182346f0991683cc7320a257c3f6089432ceeJiri Slaby struct moxa_port *port; 659037182346f0991683cc7320a257c3f6089432ceeJiri Slaby int retval, i; 660037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 661037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (len % 2) { 662eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby printk(KERN_ERR "MOXA: bios length is not even\n"); 663037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -EINVAL; 664037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 665037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 6665292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby retval = moxa_real_load_code(brd, ptr, len); /* may change numPorts */ 6675292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby if (retval) 6685292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby return retval; 6695292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby 670037182346f0991683cc7320a257c3f6089432ceeJiri Slaby switch (brd->boardType) { 671037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_C218_ISA: 672037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_C218_PCI: 673037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_CP204J: 674037182346f0991683cc7320a257c3f6089432ceeJiri Slaby port = brd->ports; 675037182346f0991683cc7320a257c3f6089432ceeJiri Slaby for (i = 0; i < brd->numPorts; i++, port++) { 676b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby port->board = brd; 677037182346f0991683cc7320a257c3f6089432ceeJiri Slaby port->DCDState = 0; 678037182346f0991683cc7320a257c3f6089432ceeJiri Slaby port->tableAddr = baseAddr + Extern_table + 679037182346f0991683cc7320a257c3f6089432ceeJiri Slaby Extern_size * i; 680037182346f0991683cc7320a257c3f6089432ceeJiri Slaby ofsAddr = port->tableAddr; 681037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C218rx_mask, ofsAddr + RX_mask); 682037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C218tx_mask, ofsAddr + TX_mask); 683037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C218rx_spage + i * C218buf_pageno, ofsAddr + Page_rxb); 684037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(readw(ofsAddr + Page_rxb) + C218rx_pageno, ofsAddr + EndPage_rxb); 685037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 686037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C218tx_spage + i * C218buf_pageno, ofsAddr + Page_txb); 687037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(readw(ofsAddr + Page_txb) + C218tx_pageno, ofsAddr + EndPage_txb); 688037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 689037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 690037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 691037182346f0991683cc7320a257c3f6089432ceeJiri Slaby default: 692037182346f0991683cc7320a257c3f6089432ceeJiri Slaby port = brd->ports; 693037182346f0991683cc7320a257c3f6089432ceeJiri Slaby for (i = 0; i < brd->numPorts; i++, port++) { 694b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby port->board = brd; 695037182346f0991683cc7320a257c3f6089432ceeJiri Slaby port->DCDState = 0; 696037182346f0991683cc7320a257c3f6089432ceeJiri Slaby port->tableAddr = baseAddr + Extern_table + 697037182346f0991683cc7320a257c3f6089432ceeJiri Slaby Extern_size * i; 698037182346f0991683cc7320a257c3f6089432ceeJiri Slaby ofsAddr = port->tableAddr; 699037182346f0991683cc7320a257c3f6089432ceeJiri Slaby switch (brd->numPorts) { 700037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case 8: 701037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p8rx_mask, ofsAddr + RX_mask); 702037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p8tx_mask, ofsAddr + TX_mask); 703037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p8rx_spage + i * C320p8buf_pgno, ofsAddr + Page_rxb); 704037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(readw(ofsAddr + Page_rxb) + C320p8rx_pgno, ofsAddr + EndPage_rxb); 705037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p8tx_spage + i * C320p8buf_pgno, ofsAddr + Page_txb); 706037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(readw(ofsAddr + Page_txb) + C320p8tx_pgno, ofsAddr + EndPage_txb); 707037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 708037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 709037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case 16: 710037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p16rx_mask, ofsAddr + RX_mask); 711037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p16tx_mask, ofsAddr + TX_mask); 712037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p16rx_spage + i * C320p16buf_pgno, ofsAddr + Page_rxb); 713037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(readw(ofsAddr + Page_rxb) + C320p16rx_pgno, ofsAddr + EndPage_rxb); 714037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p16tx_spage + i * C320p16buf_pgno, ofsAddr + Page_txb); 715037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(readw(ofsAddr + Page_txb) + C320p16tx_pgno, ofsAddr + EndPage_txb); 716037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 717037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 718037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case 24: 719037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p24rx_mask, ofsAddr + RX_mask); 720037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p24tx_mask, ofsAddr + TX_mask); 721037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p24rx_spage + i * C320p24buf_pgno, ofsAddr + Page_rxb); 722037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(readw(ofsAddr + Page_rxb) + C320p24rx_pgno, ofsAddr + EndPage_rxb); 723037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p24tx_spage + i * C320p24buf_pgno, ofsAddr + Page_txb); 724037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(readw(ofsAddr + Page_txb), ofsAddr + EndPage_txb); 725037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 726037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case 32: 727037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p32rx_mask, ofsAddr + RX_mask); 728037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p32tx_mask, ofsAddr + TX_mask); 729037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p32tx_ofs, ofsAddr + Ofs_txb); 730037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p32rx_spage + i * C320p32buf_pgno, ofsAddr + Page_rxb); 731037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(readb(ofsAddr + Page_rxb), ofsAddr + EndPage_rxb); 732037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p32tx_spage + i * C320p32buf_pgno, ofsAddr + Page_txb); 733037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(readw(ofsAddr + Page_txb), ofsAddr + EndPage_txb); 734037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 735037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 736037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 737037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 738037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 739037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return 0; 740037182346f0991683cc7320a257c3f6089432ceeJiri Slaby} 741037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 742037182346f0991683cc7320a257c3f6089432ceeJiri Slabystatic int moxa_load_fw(struct moxa_board_conf *brd, const struct firmware *fw) 743037182346f0991683cc7320a257c3f6089432ceeJiri Slaby{ 7442bca76e89bc43f86136080536858048ebffab3e3David Howells const void *ptr = fw->data; 745037182346f0991683cc7320a257c3f6089432ceeJiri Slaby char rsn[64]; 746037182346f0991683cc7320a257c3f6089432ceeJiri Slaby u16 lens[5]; 747037182346f0991683cc7320a257c3f6089432ceeJiri Slaby size_t len; 748037182346f0991683cc7320a257c3f6089432ceeJiri Slaby unsigned int a, lenp, lencnt; 749037182346f0991683cc7320a257c3f6089432ceeJiri Slaby int ret = -EINVAL; 750037182346f0991683cc7320a257c3f6089432ceeJiri Slaby struct { 751037182346f0991683cc7320a257c3f6089432ceeJiri Slaby __le32 magic; /* 0x34303430 */ 752037182346f0991683cc7320a257c3f6089432ceeJiri Slaby u8 reserved1[2]; 753037182346f0991683cc7320a257c3f6089432ceeJiri Slaby u8 type; /* UNIX = 3 */ 754037182346f0991683cc7320a257c3f6089432ceeJiri Slaby u8 model; /* C218T=1, C320T=2, CP204=3 */ 755037182346f0991683cc7320a257c3f6089432ceeJiri Slaby u8 reserved2[8]; 756037182346f0991683cc7320a257c3f6089432ceeJiri Slaby __le16 len[5]; 7572bca76e89bc43f86136080536858048ebffab3e3David Howells } const *hdr = ptr; 758037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 759037182346f0991683cc7320a257c3f6089432ceeJiri Slaby BUILD_BUG_ON(ARRAY_SIZE(hdr->len) != ARRAY_SIZE(lens)); 760037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 761037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (fw->size < MOXA_FW_HDRLEN) { 762037182346f0991683cc7320a257c3f6089432ceeJiri Slaby strcpy(rsn, "too short (even header won't fit)"); 763037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 764037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 765037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (hdr->magic != cpu_to_le32(0x30343034)) { 766037182346f0991683cc7320a257c3f6089432ceeJiri Slaby sprintf(rsn, "bad magic: %.8x", le32_to_cpu(hdr->magic)); 767037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 768037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 769037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (hdr->type != 3) { 770037182346f0991683cc7320a257c3f6089432ceeJiri Slaby sprintf(rsn, "not for linux, type is %u", hdr->type); 771037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 772037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 773037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (moxa_check_fw_model(brd, hdr->model)) { 774037182346f0991683cc7320a257c3f6089432ceeJiri Slaby sprintf(rsn, "not for this card, model is %u", hdr->model); 775037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 776037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 777037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 778037182346f0991683cc7320a257c3f6089432ceeJiri Slaby len = MOXA_FW_HDRLEN; 779037182346f0991683cc7320a257c3f6089432ceeJiri Slaby lencnt = hdr->model == 2 ? 5 : 3; 780037182346f0991683cc7320a257c3f6089432ceeJiri Slaby for (a = 0; a < ARRAY_SIZE(lens); a++) { 781037182346f0991683cc7320a257c3f6089432ceeJiri Slaby lens[a] = le16_to_cpu(hdr->len[a]); 782037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (lens[a] && len + lens[a] <= fw->size && 783037182346f0991683cc7320a257c3f6089432ceeJiri Slaby moxa_check_fw(&fw->data[len])) 784eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby printk(KERN_WARNING "MOXA firmware: unexpected input " 785037182346f0991683cc7320a257c3f6089432ceeJiri Slaby "at offset %u, but going on\n", (u32)len); 786037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (!lens[a] && a < lencnt) { 787037182346f0991683cc7320a257c3f6089432ceeJiri Slaby sprintf(rsn, "too few entries in fw file"); 788037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 789037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 790037182346f0991683cc7320a257c3f6089432ceeJiri Slaby len += lens[a]; 791037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 792037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 793037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (len != fw->size) { 794037182346f0991683cc7320a257c3f6089432ceeJiri Slaby sprintf(rsn, "bad length: %u (should be %u)", (u32)fw->size, 795037182346f0991683cc7320a257c3f6089432ceeJiri Slaby (u32)len); 796037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 797037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 798037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 799037182346f0991683cc7320a257c3f6089432ceeJiri Slaby ptr += MOXA_FW_HDRLEN; 800037182346f0991683cc7320a257c3f6089432ceeJiri Slaby lenp = 0; /* bios */ 801037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 802037182346f0991683cc7320a257c3f6089432ceeJiri Slaby strcpy(rsn, "read above"); 803037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 804037182346f0991683cc7320a257c3f6089432ceeJiri Slaby ret = moxa_load_bios(brd, ptr, lens[lenp]); 805037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (ret) 806037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 807037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 808037182346f0991683cc7320a257c3f6089432ceeJiri Slaby /* we skip the tty section (lens[1]), since we don't need it */ 809037182346f0991683cc7320a257c3f6089432ceeJiri Slaby ptr += lens[lenp] + lens[lenp + 1]; 810037182346f0991683cc7320a257c3f6089432ceeJiri Slaby lenp += 2; /* comm */ 811037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 812037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (hdr->model == 2) { 813037182346f0991683cc7320a257c3f6089432ceeJiri Slaby ret = moxa_load_320b(brd, ptr, lens[lenp]); 814037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (ret) 815037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 816037182346f0991683cc7320a257c3f6089432ceeJiri Slaby /* skip another tty */ 817037182346f0991683cc7320a257c3f6089432ceeJiri Slaby ptr += lens[lenp] + lens[lenp + 1]; 818037182346f0991683cc7320a257c3f6089432ceeJiri Slaby lenp += 2; 819037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 820037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 821037182346f0991683cc7320a257c3f6089432ceeJiri Slaby ret = moxa_load_code(brd, ptr, lens[lenp]); 822037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (ret) 823037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 824037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 825037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return 0; 826037182346f0991683cc7320a257c3f6089432ceeJiri Slabyerr: 827037182346f0991683cc7320a257c3f6089432ceeJiri Slaby printk(KERN_ERR "firmware failed to load, reason: %s\n", rsn); 828037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return ret; 829037182346f0991683cc7320a257c3f6089432ceeJiri Slaby} 830037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 831037182346f0991683cc7320a257c3f6089432ceeJiri Slabystatic int moxa_init_board(struct moxa_board_conf *brd, struct device *dev) 832037182346f0991683cc7320a257c3f6089432ceeJiri Slaby{ 833037182346f0991683cc7320a257c3f6089432ceeJiri Slaby const struct firmware *fw; 834037182346f0991683cc7320a257c3f6089432ceeJiri Slaby const char *file; 835810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby struct moxa_port *p; 836810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby unsigned int i; 837037182346f0991683cc7320a257c3f6089432ceeJiri Slaby int ret; 838037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 839810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby brd->ports = kcalloc(MAX_PORTS_PER_BOARD, sizeof(*brd->ports), 840810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby GFP_KERNEL); 841810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby if (brd->ports == NULL) { 842810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby printk(KERN_ERR "cannot allocate memory for ports\n"); 843810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby ret = -ENOMEM; 844810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby goto err; 845810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby } 846810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby 847810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby for (i = 0, p = brd->ports; i < MAX_PORTS_PER_BOARD; i++, p++) { 84844b7d1b37f786c61d0e382b6f72f605f73de284bAlan Cox tty_port_init(&p->port); 84931f35939d1d9bcfb3099b32c67b896d2792603f9Alan Cox p->port.ops = &moxa_port_ops; 850810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby p->type = PORT_16550A; 851810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby p->cflag = B9600 | CS8 | CREAD | CLOCAL | HUPCL; 852810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby } 853810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby 854037182346f0991683cc7320a257c3f6089432ceeJiri Slaby switch (brd->boardType) { 855037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_C218_ISA: 856037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_C218_PCI: 857037182346f0991683cc7320a257c3f6089432ceeJiri Slaby file = "c218tunx.cod"; 858037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 859037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_CP204J: 860037182346f0991683cc7320a257c3f6089432ceeJiri Slaby file = "cp204unx.cod"; 861037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 862037182346f0991683cc7320a257c3f6089432ceeJiri Slaby default: 863037182346f0991683cc7320a257c3f6089432ceeJiri Slaby file = "c320tunx.cod"; 864037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 865037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 866037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 867037182346f0991683cc7320a257c3f6089432ceeJiri Slaby ret = request_firmware(&fw, file, dev); 868037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (ret) { 869ec09cd562135158dcb8a6c08e5a9efa36febedb1Jiri Slaby printk(KERN_ERR "MOXA: request_firmware failed. Make sure " 870ec09cd562135158dcb8a6c08e5a9efa36febedb1Jiri Slaby "you've placed '%s' file into your firmware " 871ec09cd562135158dcb8a6c08e5a9efa36febedb1Jiri Slaby "loader directory (e.g. /lib/firmware)\n", 872ec09cd562135158dcb8a6c08e5a9efa36febedb1Jiri Slaby file); 873810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby goto err_free; 874037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 875037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 876037182346f0991683cc7320a257c3f6089432ceeJiri Slaby ret = moxa_load_fw(brd, fw); 877037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 878037182346f0991683cc7320a257c3f6089432ceeJiri Slaby release_firmware(fw); 879810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby 880810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby if (ret) 881810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby goto err_free; 882810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby 8832a5413416b6b2fd8a5a38601a4fe3b56a52cfb86Jiri Slaby spin_lock_bh(&moxa_lock); 884810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby brd->ready = 1; 8850bcc4caadc8f5396b52950ee03c67b76875602dfJiri Slaby if (!timer_pending(&moxaTimer)) 8860bcc4caadc8f5396b52950ee03c67b76875602dfJiri Slaby mod_timer(&moxaTimer, jiffies + HZ / 50); 8872a5413416b6b2fd8a5a38601a4fe3b56a52cfb86Jiri Slaby spin_unlock_bh(&moxa_lock); 8880bcc4caadc8f5396b52950ee03c67b76875602dfJiri Slaby 889810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby return 0; 890810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slabyerr_free: 891810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby kfree(brd->ports); 892810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slabyerr: 893037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return ret; 894037182346f0991683cc7320a257c3f6089432ceeJiri Slaby} 895037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 896810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slabystatic void moxa_board_deinit(struct moxa_board_conf *brd) 897810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby{ 898a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby unsigned int a, opened; 899a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby 900a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby mutex_lock(&moxa_openlock); 9017bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby spin_lock_bh(&moxa_lock); 902810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby brd->ready = 0; 9037bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby spin_unlock_bh(&moxa_lock); 904a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby 905a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby /* pci hot-un-plug support */ 906a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby for (a = 0; a < brd->numPorts; a++) 907d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox if (brd->ports[a].port.flags & ASYNC_INITIALIZED) { 908d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox struct tty_struct *tty = tty_port_tty_get( 909d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox &brd->ports[a].port); 910d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox if (tty) { 911d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox tty_hangup(tty); 912d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox tty_kref_put(tty); 913d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox } 914d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox } 915a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby while (1) { 916a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby opened = 0; 917a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby for (a = 0; a < brd->numPorts; a++) 9189de6a51fee08f9e7020074738150441305e83af2Alan Cox if (brd->ports[a].port.flags & ASYNC_INITIALIZED) 919a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby opened++; 920a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby mutex_unlock(&moxa_openlock); 921a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby if (!opened) 922a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby break; 923a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby msleep(50); 924a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby mutex_lock(&moxa_openlock); 925a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby } 926a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby 927810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby iounmap(brd->basemem); 928810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby brd->basemem = NULL; 929810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby kfree(brd->ports); 930810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby} 931810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby 9321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PCI 9339cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slabystatic int __devinit moxa_pci_probe(struct pci_dev *pdev, 9349cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby const struct pci_device_id *ent) 9351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9369cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby struct moxa_board_conf *board; 9379cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby unsigned int i; 9389cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby int board_type = ent->driver_data; 9399cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby int retval; 9409cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby 9419cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby retval = pci_enable_device(pdev); 9427aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby if (retval) { 9437aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby dev_err(&pdev->dev, "can't enable pci device\n"); 9449cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby goto err; 9457aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby } 9469cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby 9479cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby for (i = 0; i < MAX_BOARDS; i++) 9489cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby if (moxa_boards[i].basemem == NULL) 9499cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby break; 9509cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby 9519cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby retval = -ENODEV; 9529cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby if (i >= MAX_BOARDS) { 9537aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby dev_warn(&pdev->dev, "more than %u MOXA Intellio family boards " 9549cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby "found. Board is ignored.\n", MAX_BOARDS); 9559cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby goto err; 9569cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby } 9579cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby 9589cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby board = &moxa_boards[i]; 959e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby 960e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby retval = pci_request_region(pdev, 2, "moxa-base"); 961e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby if (retval) { 962e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby dev_err(&pdev->dev, "can't request pci region 2\n"); 963e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby goto err; 964e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby } 965e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby 96624cb233520f01971d6d873cb52c64bbbb0665ac0Alan Cox board->basemem = ioremap_nocache(pci_resource_start(pdev, 2), 0x4000); 9677aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby if (board->basemem == NULL) { 9687aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby dev_err(&pdev->dev, "can't remap io space 2\n"); 969e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby goto err_reg; 9707aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby } 9719cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby 9721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds board->boardType = board_type; 9731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (board_type) { 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_BOARD_C218_ISA: 9751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_BOARD_C218_PCI: 9761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds board->numPorts = 8; 9771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_BOARD_CP204J: 9801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds board->numPorts = 4; 9811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds board->numPorts = 0; 9841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds board->busType = MOXA_BUS_TYPE_PCI; 987a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby 988037182346f0991683cc7320a257c3f6089432ceeJiri Slaby retval = moxa_init_board(board, &pdev->dev); 989037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (retval) 990037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err_base; 991037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 9929cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby pci_set_drvdata(pdev, board); 9931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 994bb9f910a1153101a2f92620f1e7d0fda786c9812Jiri Slaby dev_info(&pdev->dev, "board '%s' ready (%u ports, firmware loaded)\n", 995bb9f910a1153101a2f92620f1e7d0fda786c9812Jiri Slaby moxa_brdname[board_type - 1], board->numPorts); 996bb9f910a1153101a2f92620f1e7d0fda786c9812Jiri Slaby 997eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby return 0; 998037182346f0991683cc7320a257c3f6089432ceeJiri Slabyerr_base: 999037182346f0991683cc7320a257c3f6089432ceeJiri Slaby iounmap(board->basemem); 1000037182346f0991683cc7320a257c3f6089432ceeJiri Slaby board->basemem = NULL; 1001e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slabyerr_reg: 1002e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby pci_release_region(pdev, 2); 10039cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slabyerr: 10049cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby return retval; 10059cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby} 10069cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby 10079cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slabystatic void __devexit moxa_pci_remove(struct pci_dev *pdev) 10089cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby{ 10099cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby struct moxa_board_conf *brd = pci_get_drvdata(pdev); 10109cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby 1011810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby moxa_board_deinit(brd); 1012810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby 1013e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby pci_release_region(pdev, 2); 10141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1015a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby 1016a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slabystatic struct pci_driver moxa_pci_driver = { 1017a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby .name = "moxa", 1018a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby .id_table = moxa_pcibrds, 1019a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby .probe = moxa_pci_probe, 1020a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby .remove = __devexit_p(moxa_pci_remove) 1021a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby}; 10221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_PCI */ 10231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init moxa_init(void) 10251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1026810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby unsigned int isabrds = 0; 1027d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby int retval = 0; 10281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10297aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby printk(KERN_INFO "MOXA Intellio family driver version %s\n", 10307aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby MOXA_VERSION); 10311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver = alloc_tty_driver(MAX_PORTS + 1); 10321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!moxaDriver) 10331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 10341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->owner = THIS_MODULE; 10369b4e3b13b147e9b737de63188a9ae740eaa8c36dSergey Vlasov moxaDriver->name = "ttyMX"; 10371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->major = ttymajor; 10381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->minor_start = 0; 10391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->type = TTY_DRIVER_TYPE_SERIAL; 10401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->subtype = SERIAL_TYPE_NORMAL; 10411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->init_termios = tty_std_termios; 10421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->init_termios.c_cflag = B9600 | CS8 | CREAD | CLOCAL | HUPCL; 1043606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Cox moxaDriver->init_termios.c_ispeed = 9600; 1044606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Cox moxaDriver->init_termios.c_ospeed = 9600; 10451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->flags = TTY_DRIVER_REAL_RAW; 10461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_set_operations(moxaDriver, &moxa_ops); 10471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tty_register_driver(moxaDriver)) { 1049eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby printk(KERN_ERR "can't register MOXA Smartio tty driver!\n"); 10501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds put_tty_driver(moxaDriver); 10511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -1; 10521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1054d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby /* Find the boards defined from module args. */ 10551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef MODULE 1056d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby { 1057d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby struct moxa_board_conf *brd = moxa_boards; 1058810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby unsigned int i; 10591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < MAX_BOARDS; i++) { 1060d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby if (!baseaddr[i]) 1061d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby break; 1062d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby if (type[i] == MOXA_BOARD_C218_ISA || 1063d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby type[i] == MOXA_BOARD_C320_ISA) { 10647aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby pr_debug("Moxa board %2d: %s board(baseAddr=%lx)\n", 1065d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby isabrds + 1, moxa_brdname[type[i] - 1], 1066d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby baseaddr[i]); 1067d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby brd->boardType = type[i]; 1068d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby brd->numPorts = type[i] == MOXA_BOARD_C218_ISA ? 8 : 1069d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby numports[i]; 1070d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby brd->busType = MOXA_BUS_TYPE_ISA; 107124cb233520f01971d6d873cb52c64bbbb0665ac0Alan Cox brd->basemem = ioremap_nocache(baseaddr[i], 0x4000); 1072d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby if (!brd->basemem) { 1073eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby printk(KERN_ERR "MOXA: can't remap %lx\n", 1074d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby baseaddr[i]); 10751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 10761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1077037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (moxa_init_board(brd, NULL)) { 1078037182346f0991683cc7320a257c3f6089432ceeJiri Slaby iounmap(brd->basemem); 1079037182346f0991683cc7320a257c3f6089432ceeJiri Slaby brd->basemem = NULL; 1080037182346f0991683cc7320a257c3f6089432ceeJiri Slaby continue; 1081037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 1082d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby 1083bb9f910a1153101a2f92620f1e7d0fda786c9812Jiri Slaby printk(KERN_INFO "MOXA isa board found at 0x%.8lu and " 1084bb9f910a1153101a2f92620f1e7d0fda786c9812Jiri Slaby "ready (%u ports, firmware loaded)\n", 1085bb9f910a1153101a2f92620f1e7d0fda786c9812Jiri Slaby baseaddr[i], brd->numPorts); 1086bb9f910a1153101a2f92620f1e7d0fda786c9812Jiri Slaby 1087d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby brd++; 1088d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby isabrds++; 10891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1091d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby } 10921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1093a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby 10941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PCI 1095a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby retval = pci_register_driver(&moxa_pci_driver); 1096a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby if (retval) { 1097eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby printk(KERN_ERR "Can't register MOXA pci driver!\n"); 1098d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby if (isabrds) 1099a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby retval = 0; 11001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1102a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby 1103a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby return retval; 11041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __exit moxa_exit(void) 11071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1108eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby unsigned int i; 11091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11109cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby#ifdef CONFIG_PCI 1111a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby pci_unregister_driver(&moxa_pci_driver); 11129cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby#endif 1113a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby 1114810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby for (i = 0; i < MAX_BOARDS; i++) /* ISA boards */ 1115810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby if (moxa_boards[i].ready) 1116810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby moxa_board_deinit(&moxa_boards[i]); 11172a5413416b6b2fd8a5a38601a4fe3b56a52cfb86Jiri Slaby 11182a5413416b6b2fd8a5a38601a4fe3b56a52cfb86Jiri Slaby del_timer_sync(&moxaTimer); 11192a5413416b6b2fd8a5a38601a4fe3b56a52cfb86Jiri Slaby 11202a5413416b6b2fd8a5a38601a4fe3b56a52cfb86Jiri Slaby if (tty_unregister_driver(moxaDriver)) 11212a5413416b6b2fd8a5a38601a4fe3b56a52cfb86Jiri Slaby printk(KERN_ERR "Couldn't unregister MOXA Intellio family " 11222a5413416b6b2fd8a5a38601a4fe3b56a52cfb86Jiri Slaby "serial driver\n"); 11232a5413416b6b2fd8a5a38601a4fe3b56a52cfb86Jiri Slaby put_tty_driver(moxaDriver); 11241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_init(moxa_init); 11271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_exit(moxa_exit); 11281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1129f176178ba09d27cc33988435e2c9fe078b44998cAlan Coxstatic void moxa_shutdown(struct tty_port *port) 1130a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby{ 1131f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox struct moxa_port *ch = container_of(port, struct moxa_port, port); 1132f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox MoxaPortDisable(ch); 1133a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby MoxaPortFlushData(ch, 2); 1134f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox clear_bit(ASYNCB_NORMAL_ACTIVE, &port->flags); 1135a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby} 1136a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby 113731f35939d1d9bcfb3099b32c67b896d2792603f9Alan Coxstatic int moxa_carrier_raised(struct tty_port *port) 113831f35939d1d9bcfb3099b32c67b896d2792603f9Alan Cox{ 113931f35939d1d9bcfb3099b32c67b896d2792603f9Alan Cox struct moxa_port *ch = container_of(port, struct moxa_port, port); 114031f35939d1d9bcfb3099b32c67b896d2792603f9Alan Cox int dcd; 114131f35939d1d9bcfb3099b32c67b896d2792603f9Alan Cox 11428482bcd58530ad5857d7187854132f2b846db681Alan Cox spin_lock_irq(&port->lock); 114331f35939d1d9bcfb3099b32c67b896d2792603f9Alan Cox dcd = ch->DCDState; 11448482bcd58530ad5857d7187854132f2b846db681Alan Cox spin_unlock_irq(&port->lock); 114531f35939d1d9bcfb3099b32c67b896d2792603f9Alan Cox return dcd; 114631f35939d1d9bcfb3099b32c67b896d2792603f9Alan Cox} 114731f35939d1d9bcfb3099b32c67b896d2792603f9Alan Cox 1148f176178ba09d27cc33988435e2c9fe078b44998cAlan Coxstatic void moxa_dtr_rts(struct tty_port *port, int onoff) 1149a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby{ 1150f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox struct moxa_port *ch = container_of(port, struct moxa_port, port); 1151f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox MoxaPortLineCtrl(ch, onoff, onoff); 1152a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby} 1153a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby 1154f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox 11551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_open(struct tty_struct *tty, struct file *filp) 11561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1157810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby struct moxa_board_conf *brd; 11588f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch; 11591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int port; 11601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int retval; 11611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 116211324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby port = tty->index; 11631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port == MAX_PORTS) { 116474d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby return capable(CAP_SYS_ADMIN) ? 0 : -EPERM; 11651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1166a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby if (mutex_lock_interruptible(&moxa_openlock)) 1167a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby return -ERESTARTSYS; 1168810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby brd = &moxa_boards[port / MAX_PORTS_PER_BOARD]; 1169a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby if (!brd->ready) { 1170a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby mutex_unlock(&moxa_openlock); 1171810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby return -ENODEV; 1172a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby } 11731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1174f0e8527726b9e56649b9eafde3bc0fbc4dd2dd47Dirk Eibach if (port % MAX_PORTS_PER_BOARD >= brd->numPorts) { 1175f0e8527726b9e56649b9eafde3bc0fbc4dd2dd47Dirk Eibach mutex_unlock(&moxa_openlock); 1176f0e8527726b9e56649b9eafde3bc0fbc4dd2dd47Dirk Eibach return -ENODEV; 1177f0e8527726b9e56649b9eafde3bc0fbc4dd2dd47Dirk Eibach } 1178f0e8527726b9e56649b9eafde3bc0fbc4dd2dd47Dirk Eibach 1179810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby ch = &brd->ports[port % MAX_PORTS_PER_BOARD]; 11809de6a51fee08f9e7020074738150441305e83af2Alan Cox ch->port.count++; 11811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty->driver_data = ch; 1182d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox tty_port_tty_set(&ch->port, tty); 1183f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox mutex_lock(&ch->port.mutex); 11849de6a51fee08f9e7020074738150441305e83af2Alan Cox if (!(ch->port.flags & ASYNC_INITIALIZED)) { 11851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags = 0; 1186db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox moxa_set_tty_param(tty, tty->termios); 1187b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortLineCtrl(ch, 1, 1); 1188b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortEnable(ch); 1189a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby MoxaSetFifo(ch, ch->type == PORT_16550A); 11909de6a51fee08f9e7020074738150441305e83af2Alan Cox ch->port.flags |= ASYNC_INITIALIZED; 11911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1192f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox mutex_unlock(&ch->port.mutex); 1193a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby mutex_unlock(&moxa_openlock); 11941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1195f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox retval = tty_port_block_til_ready(&ch->port, tty, filp); 1196f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox if (retval == 0) 1197f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox set_bit(ASYNCB_NORMAL_ACTIVE, &ch->port.flags); 1198a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby return retval; 11991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_close(struct tty_struct *tty, struct file *filp) 12021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1203f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox struct moxa_port *ch = tty->driver_data; 12041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->cflag = tty->termios->c_cflag; 1205f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox tty_port_close(&ch->port, tty, filp); 12061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_write(struct tty_struct *tty, 12091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const unsigned char *buf, int count) 12101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1211b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby struct moxa_port *ch = tty->driver_data; 1212b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby int len; 12131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 1215b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby return 0; 121633f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox 12177bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby spin_lock_bh(&moxa_lock); 1218d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox len = MoxaPortWriteData(tty, buf, count); 12197bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby spin_unlock_bh(&moxa_lock); 12201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1221a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox set_bit(LOWWAIT, &ch->statusflags); 1222eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby return len; 12231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_write_room(struct tty_struct *tty) 12261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 12278f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch; 12281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tty->stopped) 1230eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby return 0; 1231b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby ch = tty->driver_data; 12321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 1233eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby return 0; 1234b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby return MoxaPortTxFree(ch); 12351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_flush_buffer(struct tty_struct *tty) 12381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1239b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby struct moxa_port *ch = tty->driver_data; 12401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 12421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 1243b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortFlushData(ch, 1); 12441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_wakeup(tty); 12451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_chars_in_buffer(struct tty_struct *tty) 12481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1249b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby struct moxa_port *ch = tty->driver_data; 12501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int chars; 12511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1252b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby chars = MoxaPortTxQueue(ch); 1253f710ebd7f70801e31751f2c49fe4b92a477d24ebAlan Cox if (chars) 12541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 12551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Make it possible to wakeup anything waiting for output 12561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * in tty_ioctl.c, etc. 12571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1258f710ebd7f70801e31751f2c49fe4b92a477d24ebAlan Cox set_bit(EMPTYWAIT, &ch->statusflags); 1259eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby return chars; 12601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_tiocmget(struct tty_struct *tty, struct file *file) 12631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 12648482bcd58530ad5857d7187854132f2b846db681Alan Cox struct moxa_port *ch = tty->driver_data; 12651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int flag = 0, dtr, rts; 12661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1267b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortGetLineOut(ch, &dtr, &rts); 12681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dtr) 12691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds flag |= TIOCM_DTR; 12701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rts) 12711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds flag |= TIOCM_RTS; 1272b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby dtr = MoxaPortLineStatus(ch); 12731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dtr & 1) 12741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds flag |= TIOCM_CTS; 12751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dtr & 2) 12761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds flag |= TIOCM_DSR; 12771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dtr & 4) 12781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds flag |= TIOCM_CD; 12791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return flag; 12801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_tiocmset(struct tty_struct *tty, struct file *file, 12831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int set, unsigned int clear) 12841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1285a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby struct moxa_port *ch; 12861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int port; 12871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int dtr, rts; 12881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 128911324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby port = tty->index; 1290a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby mutex_lock(&moxa_openlock); 1291a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby ch = tty->driver_data; 1292a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby if (!ch) { 1293a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby mutex_unlock(&moxa_openlock); 129474d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby return -EINVAL; 1295a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby } 12961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1297b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortGetLineOut(ch, &dtr, &rts); 12981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (set & TIOCM_RTS) 12991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rts = 1; 13001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (set & TIOCM_DTR) 13011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dtr = 1; 13021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (clear & TIOCM_RTS) 13031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rts = 0; 13041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (clear & TIOCM_DTR) 13051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dtr = 0; 1306b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortLineCtrl(ch, dtr, rts); 1307a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby mutex_unlock(&moxa_openlock); 13081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 13091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_set_termios(struct tty_struct *tty, 1312eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby struct ktermios *old_termios) 13131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1314eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby struct moxa_port *ch = tty->driver_data; 13151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 13171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 1318db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox moxa_set_tty_param(tty, old_termios); 1319eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby if (!(old_termios->c_cflag & CLOCAL) && C_CLOCAL(tty)) 13209de6a51fee08f9e7020074738150441305e83af2Alan Cox wake_up_interruptible(&ch->port.open_wait); 13211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_stop(struct tty_struct *tty) 13241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1325eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby struct moxa_port *ch = tty->driver_data; 13261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 13281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 1329b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortTxDisable(ch); 1330a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox set_bit(TXSTOPPED, &ch->statusflags); 13311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_start(struct tty_struct *tty) 13351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1336eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby struct moxa_port *ch = tty->driver_data; 13371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 13391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 13401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(ch->statusflags & TXSTOPPED)) 13421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 13431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1344b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortTxEnable(ch); 1345a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox clear_bit(TXSTOPPED, &ch->statusflags); 13461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_hangup(struct tty_struct *tty) 13491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1350a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox struct moxa_port *ch = tty->driver_data; 1351f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox tty_port_hangup(&ch->port); 13521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13547bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slabystatic void moxa_new_dcdstate(struct moxa_port *p, u8 dcd) 13551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1356d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox struct tty_struct *tty; 13578482bcd58530ad5857d7187854132f2b846db681Alan Cox unsigned long flags; 13587bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby dcd = !!dcd; 13591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13608482bcd58530ad5857d7187854132f2b846db681Alan Cox spin_lock_irqsave(&p->port.lock, flags); 1361d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox if (dcd != p->DCDState) { 13628482bcd58530ad5857d7187854132f2b846db681Alan Cox p->DCDState = dcd; 13638482bcd58530ad5857d7187854132f2b846db681Alan Cox spin_unlock_irqrestore(&p->port.lock, flags); 1364d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox tty = tty_port_tty_get(&p->port); 1365d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox if (tty && C_CLOCAL(tty) && !dcd) 1366d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox tty_hangup(tty); 1367d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox tty_kref_put(tty); 13687bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby } 13698482bcd58530ad5857d7187854132f2b846db681Alan Cox else 13708482bcd58530ad5857d7187854132f2b846db681Alan Cox spin_unlock_irqrestore(&p->port.lock, flags); 13717bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby} 13721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13737bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slabystatic int moxa_poll_port(struct moxa_port *p, unsigned int handle, 13747bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby u16 __iomem *ip) 13757bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby{ 1376d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox struct tty_struct *tty = tty_port_tty_get(&p->port); 13777bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby void __iomem *ofsAddr; 13789de6a51fee08f9e7020074738150441305e83af2Alan Cox unsigned int inited = p->port.flags & ASYNC_INITIALIZED; 13797bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby u16 intr; 13807bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 13817bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby if (tty) { 1382a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox if (test_bit(EMPTYWAIT, &p->statusflags) && 13837bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby MoxaPortTxQueue(p) == 0) { 1384a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox clear_bit(EMPTYWAIT, &p->statusflags); 13857bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby tty_wakeup(tty); 13867bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby } 1387a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox if (test_bit(LOWWAIT, &p->statusflags) && !tty->stopped && 13887bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby MoxaPortTxQueue(p) <= WAKEUP_CHARS) { 1389a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox clear_bit(LOWWAIT, &p->statusflags); 13907bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby tty_wakeup(tty); 13917bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby } 13927bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 1393f9b412a8c9adb17d50922f91962e8b1e48789430Alan Cox if (inited && !test_bit(TTY_THROTTLED, &tty->flags) && 13947bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby MoxaPortRxQueue(p) > 0) { /* RX */ 13957bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby MoxaPortReadData(p); 13967bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby tty_schedule_flip(tty); 13977bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby } 13987bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby } else { 1399a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox clear_bit(EMPTYWAIT, &p->statusflags); 14007bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby MoxaPortFlushData(p, 0); /* flush RX */ 14011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14020bcc4caadc8f5396b52950ee03c67b76875602dfJiri Slaby 14037bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby if (!handle) /* nothing else to do */ 14040e0fd7d73ed130583dca16405b029f56bf65109fJiri Slaby goto put; 14057bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 14067bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby intr = readw(ip); /* port irq status */ 14077bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby if (intr == 0) 14080e0fd7d73ed130583dca16405b029f56bf65109fJiri Slaby goto put; 14097bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 14107bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby writew(0, ip); /* ACK port */ 14117bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby ofsAddr = p->tableAddr; 14127bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby if (intr & IntrTx) /* disable tx intr */ 14137bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby writew(readw(ofsAddr + HostStat) & ~WakeupTx, 14147bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby ofsAddr + HostStat); 14157bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 14167bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby if (!inited) 14170e0fd7d73ed130583dca16405b029f56bf65109fJiri Slaby goto put; 14187bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 14197bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby if (tty && (intr & IntrBreak) && !I_IGNBRK(tty)) { /* BREAK */ 14207bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby tty_insert_flip_char(tty, 0, TTY_BREAK); 14217bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby tty_schedule_flip(tty); 14227bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby } 14237bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 14247bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby if (intr & IntrLine) 14257bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby moxa_new_dcdstate(p, readb(ofsAddr + FlagStat) & DCD_state); 14260e0fd7d73ed130583dca16405b029f56bf65109fJiri Slabyput: 14270e0fd7d73ed130583dca16405b029f56bf65109fJiri Slaby tty_kref_put(tty); 14287bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 14297bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby return 0; 14307bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby} 14317bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 14327bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slabystatic void moxa_poll(unsigned long ignored) 14337bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby{ 14347bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby struct moxa_board_conf *brd; 14357bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby u16 __iomem *ip; 14362a5413416b6b2fd8a5a38601a4fe3b56a52cfb86Jiri Slaby unsigned int card, port, served = 0; 14377bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 14387bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby spin_lock(&moxa_lock); 14391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (card = 0; card < MAX_BOARDS; card++) { 14407bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby brd = &moxa_boards[card]; 14417bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby if (!brd->ready) 14421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 14437bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 14442a5413416b6b2fd8a5a38601a4fe3b56a52cfb86Jiri Slaby served++; 14452a5413416b6b2fd8a5a38601a4fe3b56a52cfb86Jiri Slaby 14467bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby ip = NULL; 14477bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby if (readb(brd->intPend) == 0xff) 14487bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby ip = brd->intTable + readb(brd->intNdx); 14497bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 14507bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby for (port = 0; port < brd->numPorts; port++) 14517bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby moxa_poll_port(&brd->ports[port], !!ip, ip + port); 14527bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 14537bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby if (ip) 14547bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby writeb(0, brd->intPend); /* ACK */ 14557bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 14567bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby if (moxaLowWaterChk) { 14577bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby struct moxa_port *p = brd->ports; 14587bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby for (port = 0; port < brd->numPorts; port++, p++) 14597bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby if (p->lowChkFlag) { 14607bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby p->lowChkFlag = 0; 14617bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby moxa_low_water_check(p->tableAddr); 14621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14657bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby moxaLowWaterChk = 0; 14661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14672a5413416b6b2fd8a5a38601a4fe3b56a52cfb86Jiri Slaby if (served) 14682a5413416b6b2fd8a5a38601a4fe3b56a52cfb86Jiri Slaby mod_timer(&moxaTimer, jiffies + HZ / 50); 14692a5413416b6b2fd8a5a38601a4fe3b56a52cfb86Jiri Slaby spin_unlock(&moxa_lock); 14701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/******************************************************************************/ 14731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1474db1acaa632870ec87b65e062bc72ca375837a1f6Alan Coxstatic void moxa_set_tty_param(struct tty_struct *tty, struct ktermios *old_termios) 14751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1476eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby register struct ktermios *ts = tty->termios; 1477eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby struct moxa_port *ch = tty->driver_data; 1478db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox int rts, cts, txflow, rxflow, xany, baud; 14791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rts = cts = txflow = rxflow = xany = 0; 14811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ts->c_cflag & CRTSCTS) 14821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rts = cts = 1; 14831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ts->c_iflag & IXON) 14841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds txflow = 1; 14851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ts->c_iflag & IXOFF) 14861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rxflow = 1; 14871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ts->c_iflag & IXANY) 14881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds xany = 1; 1489db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox 1490db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox /* Clear the features we don't support */ 1491db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox ts->c_cflag &= ~CMSPAR; 1492b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortFlowCtrl(ch, rts, cts, txflow, rxflow, xany); 1493b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby baud = MoxaPortSetTermio(ch, ts, tty_get_baud_rate(tty)); 1494db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox if (baud == -1) 1495db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox baud = tty_termios_baud_rate(old_termios); 1496db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox /* Not put the baud rate into the termios data */ 1497db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox tty_encode_baud_rate(tty, baud, baud); 14981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/***************************************************************************** 15011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Driver level functions: * 15021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *****************************************************************************/ 15031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1504b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortFlushData(struct moxa_port *port, int mode) 15051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 15061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 1507eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby if (mode < 0 || mode > 2) 15081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 1509b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby ofsAddr = port->tableAddr; 15101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_FlushQueue, mode); 15111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (mode != 1) { 1512b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby port->lowChkFlag = 0; 15136f56b658b4e5c4486641ce62f331150954c4de37Jiri Slaby moxa_low_water_check(ofsAddr); 15141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 15181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Moxa Port Number Description: 15191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * MOXA serial driver supports up to 4 MOXA-C218/C320 boards. And, 15211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the port number using in MOXA driver functions will be 0 to 31 for 15221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * first MOXA board, 32 to 63 for second, 64 to 95 for third and 96 15231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to 127 for fourth. For example, if you setup three MOXA boards, 15241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * first board is C218, second board is C320-16 and third board is 15251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * C320-32. The port number of first board (C218 - 8 ports) is from 15261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 to 7. The port number of second board (C320 - 16 ports) is form 15271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 32 to 47. The port number of third board (C320 - 32 ports) is from 15281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 64 to 95. And those port numbers form 8 to 31, 48 to 63 and 96 to 15291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 127 will be invalid. 15301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Moxa Functions Description: 15331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 1: Driver initialization routine, this routine must be 15351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * called when initialized driver. 15361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 15371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaDriverInit(); 15381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 2: Moxa driver private IOCTL command processing. 15411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 15421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaDriverIoctl(unsigned int cmd, unsigned long arg, int port); 15431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * unsigned int cmd : IOCTL command 15451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * unsigned long arg : IOCTL argument 15461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 15471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 (OK) 15491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * -EINVAL 15501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * -ENOIOCTLCMD 15511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 6: Enable this port to start Tx/Rx data. 15541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 15551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortEnable(int port); 15561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 15571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 7: Disable this port 15601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 15611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortDisable(int port); 15621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 15631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 10: Setting baud rate of this port. 15661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 156708d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby * speed_t MoxaPortSetBaud(int port, speed_t baud); 15681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 15691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * long baud : baud rate (50 - 115200) 15701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 : this port is invalid or baud < 50 15721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 50 - 115200 : the real baud rate set to the port, if 15731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the argument baud is large than maximun 15741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * available baud rate, the real setting 15751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * baud rate will be the maximun baud rate. 15761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 12: Configure the port. 15791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 1580606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Cox * int MoxaPortSetTermio(int port, struct ktermios *termio, speed_t baud); 15811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 1582606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Cox * struct ktermios * termio : termio structure pointer 1583c7bce3097c0f9bbed76ee6fd03742f2624031a45Alan Cox * speed_t baud : baud rate 15841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: -1 : this port is invalid or termio == NULL 15861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 : setting O.K. 15871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 13: Get the DTR/RTS state of this port. 15901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 15911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortGetLineOut(int port, int *dtrState, int *rtsState); 15921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 15931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int * dtrState : pointer to INT to receive the current DTR 15941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * state. (if NULL, this function will not 15951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * write to this address) 15961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int * rtsState : pointer to INT to receive the current RTS 15971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * state. (if NULL, this function will not 15981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * write to this address) 15991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: -1 : this port is invalid 16011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 : O.K. 16021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 14: Setting the DTR/RTS output state of this port. 16051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 16061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortLineCtrl(int port, int dtrState, int rtsState); 16071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 16081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int dtrState : DTR output state (0: off, 1: on) 16091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int rtsState : RTS output state (0: off, 1: on) 16101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 15: Setting the flow control of this port. 16131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 16141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortFlowCtrl(int port, int rtsFlow, int ctsFlow, int rxFlow, 16151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int txFlow,int xany); 16161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 16171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int rtsFlow : H/W RTS flow control (0: no, 1: yes) 16181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int ctsFlow : H/W CTS flow control (0: no, 1: yes) 16191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int rxFlow : S/W Rx XON/XOFF flow control (0: no, 1: yes) 16201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int txFlow : S/W Tx XON/XOFF flow control (0: no, 1: yes) 16211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int xany : S/W XANY flow control (0: no, 1: yes) 16221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 16: Get ths line status of this port 16251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 16261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortLineStatus(int port); 16271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 16281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: Bit 0 - CTS state (0: off, 1: on) 16301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Bit 1 - DSR state (0: off, 1: on) 16311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Bit 2 - DCD state (0: off, 1: on) 16321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 19: Flush the Rx/Tx buffer data of this port. 16351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 16361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortFlushData(int port, int mode); 16371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 16381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int mode 16391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 : flush the Rx buffer 16401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1 : flush the Tx buffer 16411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2 : flush the Rx and Tx buffer 16421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 20: Write data. 16451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 16461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortWriteData(int port, unsigned char * buffer, int length); 16471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 16481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * unsigned char * buffer : pointer to write data buffer. 16491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int length : write data length 16501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 - length : real write data length 16521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 21: Read data. 16551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 165633f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox * int MoxaPortReadData(int port, struct tty_struct *tty); 16571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 165833f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox * struct tty_struct *tty : tty for data 16591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 - length : real read data length 16611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 24: Get the Tx buffer current queued data bytes 16641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 16651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortTxQueue(int port); 16661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 16671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: .. : Tx buffer current queued data bytes 16691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 25: Get the Tx buffer current free space 16721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 16731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortTxFree(int port); 16741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 16751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: .. : Tx buffer current free space 16771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 26: Get the Rx buffer current queued data bytes 16801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 16811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortRxQueue(int port); 16821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 16831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: .. : Rx buffer current queued data bytes 16851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 28: Disable port data transmission. 16881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 16891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortTxDisable(int port); 16901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 16911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 29: Enable port data transmission. 16941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 16951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortTxEnable(int port); 16961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 16971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 31: Get the received BREAK signal count and reset it. 17001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 17011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortResetBrkCnt(int port); 17021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 17031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 - .. : BREAK signal count 17051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 17081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1709b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortEnable(struct moxa_port *port) 17101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 17111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 1712eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby u16 lowwater = 512; 17131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1714b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby ofsAddr = port->tableAddr; 17151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(lowwater, ofsAddr + Low_water); 171608d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby if (MOXA_IS_320(port->board)) 17171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetBreakIrq, 0); 1718eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby else 1719eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby writew(readw(ofsAddr + HostStat) | WakeupBreak, 1720eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby ofsAddr + HostStat); 17211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetLineIrq, Magic_code); 17231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_FlushQueue, 2); 17241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_EnableCH, Magic_code); 17261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortLineStatus(port); 17271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1729b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortDisable(struct moxa_port *port) 17301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1731b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby void __iomem *ofsAddr = port->tableAddr; 17321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetFlowCtl, 0); /* disable flow control */ 17341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_ClrLineIrq, Magic_code); 17351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0, ofsAddr + HostStat); 17361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_DisableCH, Magic_code); 17371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 173908d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slabystatic speed_t MoxaPortSetBaud(struct moxa_port *port, speed_t baud) 17401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 174108d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby void __iomem *ofsAddr = port->tableAddr; 174208d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby unsigned int clock, val; 174308d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby speed_t max; 17441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 174508d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby max = MOXA_IS_320(port->board) ? 460800 : 921600; 174608d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby if (baud < 50) 1747eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby return 0; 17481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (baud > max) 17491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds baud = max; 175008d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby clock = 921600; 17511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = clock / baud; 17521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetBaud, val); 17531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds baud = clock / val; 1754eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby return baud; 17551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1757b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortSetTermio(struct moxa_port *port, struct ktermios *termio, 1758b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby speed_t baud) 17591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 17601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 17611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tcflag_t cflag; 17621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tcflag_t mode = 0; 17631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1764b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby ofsAddr = port->tableAddr; 17651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cflag = termio->c_cflag; /* termio->c_cflag */ 17661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode = termio->c_cflag & CSIZE; 17681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (mode == CS5) 17691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode = MX_CS5; 17701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (mode == CS6) 17711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode = MX_CS6; 17721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (mode == CS7) 17731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode = MX_CS7; 17741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (mode == CS8) 17751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode = MX_CS8; 17761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (termio->c_cflag & CSTOPB) { 17781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (mode == MX_CS5) 17791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= MX_STOP15; 17801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 17811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= MX_STOP2; 17821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 17831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= MX_STOP1; 17841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (termio->c_cflag & PARENB) { 17861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (termio->c_cflag & PARODD) 17871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= MX_PARODD; 17881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 17891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= MX_PAREVEN; 17901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 17911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= MX_PARNONE; 17921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1793eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby moxafunc(ofsAddr, FC_SetDataMode, (u16)mode); 17941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 179508d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby if (MOXA_IS_320(port->board) && baud >= 921600) 179608d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby return -1; 179708d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby 1798db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox baud = MoxaPortSetBaud(port, baud); 17991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (termio->c_iflag & (IXON | IXOFF | IXANY)) { 1801f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox spin_lock_irq(&moxafunc_lock); 18021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(termio->c_cc[VSTART], ofsAddr + FuncArg); 18031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(termio->c_cc[VSTOP], ofsAddr + FuncArg1); 18041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(FC_SetXonXoff, ofsAddr + FuncCode); 18056f56b658b4e5c4486641ce62f331150954c4de37Jiri Slaby moxa_wait_finish(ofsAddr); 1806a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox spin_unlock_irq(&moxafunc_lock); 18071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1809eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby return baud; 18101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1812b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortGetLineOut(struct moxa_port *port, int *dtrState, 1813b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby int *rtsState) 18141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1815b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby if (dtrState) 1816b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby *dtrState = !!(port->lineCtrl & DTR_ON); 1817b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby if (rtsState) 1818b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby *rtsState = !!(port->lineCtrl & RTS_ON); 1819b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby 1820eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby return 0; 18211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1823b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortLineCtrl(struct moxa_port *port, int dtr, int rts) 18241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1825eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby u8 mode = 0; 18261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dtr) 18281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= DTR_ON; 18291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rts) 18301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= RTS_ON; 1831b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby port->lineCtrl = mode; 1832b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby moxafunc(port->tableAddr, FC_LineControl, mode); 18331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1835b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortFlowCtrl(struct moxa_port *port, int rts, int cts, 1836b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby int txflow, int rxflow, int txany) 18371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1838b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby int mode = 0; 18391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rts) 18411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= RTS_FlowCtl; 18421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cts) 18431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= CTS_FlowCtl; 18441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (txflow) 18451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= Tx_FlowCtl; 18461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rxflow) 18471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= Rx_FlowCtl; 18481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (txany) 18491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= IXM_IXANY; 1850b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby moxafunc(port->tableAddr, FC_SetFlowCtl, mode); 18511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1853b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortLineStatus(struct moxa_port *port) 18541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 18551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 18561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val; 18571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1858b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby ofsAddr = port->tableAddr; 1859f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox if (MOXA_IS_320(port->board)) 1860f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox val = moxafuncret(ofsAddr, FC_LineStatus, 0); 1861f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox else 18621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = readw(ofsAddr + FlagStat) >> 4; 18631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val &= 0x0B; 18647bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby if (val & 8) 18651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val |= 4; 18667bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby moxa_new_dcdstate(port, val & 8); 18671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val &= 7; 18687bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby return val; 18691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1871d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Coxstatic int MoxaPortWriteData(struct tty_struct *tty, 18722108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby const unsigned char *buffer, int len) 18731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1874d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox struct moxa_port *port = tty->driver_data; 18751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *baseAddr, *ofsAddr, *ofs; 18762108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby unsigned int c, total; 18772108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby u16 head, tail, tx_mask, spage, epage; 18782108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby u16 pageno, pageofs, bufhead; 18791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1880b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby ofsAddr = port->tableAddr; 1881b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby baseAddr = port->board->basemem; 18821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tx_mask = readw(ofsAddr + TX_mask); 18831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spage = readw(ofsAddr + Page_txb); 18841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds epage = readw(ofsAddr + EndPage_txb); 18851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tail = readw(ofsAddr + TXwptr); 18861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds head = readw(ofsAddr + TXrptr); 18872108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby c = (head > tail) ? (head - tail - 1) : (head - tail + tx_mask); 18881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (c > len) 18891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds c = len; 18909de6a51fee08f9e7020074738150441305e83af2Alan Cox moxaLog.txcnt[port->port.tty->index] += c; 18911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds total = c; 18921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (spage == epage) { 18931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bufhead = readw(ofsAddr + Ofs_txb); 18941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(spage, baseAddr + Control_reg); 18951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (c > 0) { 18961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (head > tail) 18971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = head - tail - 1; 18981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 18991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = tx_mask + 1 - tail; 19001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = (c > len) ? len : c; 19011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofs = baseAddr + DynPage_addr + bufhead + tail; 19022108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby memcpy_toio(ofs, buffer, len); 19032108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby buffer += len; 19041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tail = (tail + len) & tx_mask; 19051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds c -= len; 19061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 19081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageno = spage + (tail >> 13); 19091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageofs = tail & Page_mask; 19102108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby while (c > 0) { 19112108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby len = Page_size - pageofs; 19122108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby if (len > c) 19132108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby len = c; 19141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(pageno, baseAddr + Control_reg); 19151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofs = baseAddr + DynPage_addr + pageofs; 19162108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby memcpy_toio(ofs, buffer, len); 19172108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby buffer += len; 19181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (++pageno == epage) 19191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageno = spage; 19201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageofs = 0; 19212108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby c -= len; 19222108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby } 19232108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby tail = (tail + total) & tx_mask; 19241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19252108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby writew(tail, ofsAddr + TXwptr); 19261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(1, ofsAddr + CD180TXirq); /* start to send */ 19272108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby return total; 19281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19307bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slabystatic int MoxaPortReadData(struct moxa_port *port) 19311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19329de6a51fee08f9e7020074738150441305e83af2Alan Cox struct tty_struct *tty = port->port.tty; 19332108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby unsigned char *dst; 19341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *baseAddr, *ofsAddr, *ofs; 19352108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby unsigned int count, len, total; 19362108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby u16 tail, rx_mask, spage, epage; 19372108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby u16 pageno, pageofs, bufhead, head; 19381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1939b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby ofsAddr = port->tableAddr; 1940b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby baseAddr = port->board->basemem; 19411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds head = readw(ofsAddr + RXrptr); 19421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tail = readw(ofsAddr + RXwptr); 19431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rx_mask = readw(ofsAddr + RX_mask); 19441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spage = readw(ofsAddr + Page_rxb); 19451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds epage = readw(ofsAddr + EndPage_rxb); 19462108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby count = (tail >= head) ? (tail - head) : (tail - head + rx_mask + 1); 19471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (count == 0) 194833f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox return 0; 19491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 195033f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox total = count; 19517bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby moxaLog.rxcnt[tty->index] += total; 19521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (spage == epage) { 19531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bufhead = readw(ofsAddr + Ofs_rxb); 19541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(spage, baseAddr + Control_reg); 19551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (count > 0) { 19561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofs = baseAddr + DynPage_addr + bufhead + head; 19572108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby len = (tail >= head) ? (tail - head) : 19582108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby (rx_mask + 1 - head); 19592108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby len = tty_prepare_flip_string(tty, &dst, 19602108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby min(len, count)); 19612108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby memcpy_fromio(dst, ofs, len); 19621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds head = (head + len) & rx_mask; 19631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count -= len; 19641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 19661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageno = spage + (head >> 13); 19671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageofs = head & Page_mask; 19682108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby while (count > 0) { 19691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(pageno, baseAddr + Control_reg); 19701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofs = baseAddr + DynPage_addr + pageofs; 19712108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby len = tty_prepare_flip_string(tty, &dst, 19722108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby min(Page_size - pageofs, count)); 19732108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby memcpy_fromio(dst, ofs, len); 19742108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby 19752108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby count -= len; 19762108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby pageofs = (pageofs + len) & Page_mask; 19772108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby if (pageofs == 0 && ++pageno == epage) 19781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageno = spage; 19792108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby } 19802108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby head = (head + total) & rx_mask; 19811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19822108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby writew(head, ofsAddr + RXrptr); 19832108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby if (readb(ofsAddr + FlagStat) & Xoff_state) { 19841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaLowWaterChk = 1; 1985b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby port->lowChkFlag = 1; 19861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19872108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby return total; 19881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1991b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortTxQueue(struct moxa_port *port) 19921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1993b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby void __iomem *ofsAddr = port->tableAddr; 19942108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby u16 rptr, wptr, mask; 19951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rptr = readw(ofsAddr + TXrptr); 19971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wptr = readw(ofsAddr + TXwptr); 19981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mask = readw(ofsAddr + TX_mask); 19992108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby return (wptr - rptr) & mask; 20001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2002b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortTxFree(struct moxa_port *port) 20031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2004b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby void __iomem *ofsAddr = port->tableAddr; 20052108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby u16 rptr, wptr, mask; 20061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rptr = readw(ofsAddr + TXrptr); 20081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wptr = readw(ofsAddr + TXwptr); 20091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mask = readw(ofsAddr + TX_mask); 20102108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby return mask - ((wptr - rptr) & mask); 20111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2013b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortRxQueue(struct moxa_port *port) 20141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2015b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby void __iomem *ofsAddr = port->tableAddr; 20162108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby u16 rptr, wptr, mask; 20171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rptr = readw(ofsAddr + RXrptr); 20191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wptr = readw(ofsAddr + RXwptr); 20201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mask = readw(ofsAddr + RX_mask); 20212108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby return (wptr - rptr) & mask; 20221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2024b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortTxDisable(struct moxa_port *port) 20251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2026b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby moxafunc(port->tableAddr, FC_SetXoffState, Magic_code); 20271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2029b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortTxEnable(struct moxa_port *port) 20301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2031b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby moxafunc(port->tableAddr, FC_SetXonState, Magic_code); 20321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20348f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slabystatic int moxa_get_serial_info(struct moxa_port *info, 2035eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby struct serial_struct __user *retinfo) 20361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2037eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby struct serial_struct tmp = { 2038eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby .type = info->type, 20399de6a51fee08f9e7020074738150441305e83af2Alan Cox .line = info->port.tty->index, 20409de6a51fee08f9e7020074738150441305e83af2Alan Cox .flags = info->port.flags, 2041eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby .baud_base = 921600, 204244b7d1b37f786c61d0e382b6f72f605f73de284bAlan Cox .close_delay = info->port.close_delay 2043eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby }; 2044eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby return copy_to_user(retinfo, &tmp, sizeof(*retinfo)) ? -EFAULT : 0; 20451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20488f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slabystatic int moxa_set_serial_info(struct moxa_port *info, 2049eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby struct serial_struct __user *new_info) 20501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 20511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct serial_struct new_serial; 20521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2053eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby if (copy_from_user(&new_serial, new_info, sizeof(new_serial))) 20541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 20551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2056eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby if (new_serial.irq != 0 || new_serial.port != 0 || 2057eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby new_serial.custom_divisor != 0 || 2058eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby new_serial.baud_base != 921600) 2059eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby return -EPERM; 20601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_ADMIN)) { 20621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (((new_serial.flags & ~ASYNC_USR_MASK) != 20639de6a51fee08f9e7020074738150441305e83af2Alan Cox (info->port.flags & ~ASYNC_USR_MASK))) 2064eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby return -EPERM; 2065eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby } else 206644b7d1b37f786c61d0e382b6f72f605f73de284bAlan Cox info->port.close_delay = new_serial.close_delay * HZ / 100; 20671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_serial.flags = (new_serial.flags & ~ASYNC_FLAGS); 20699de6a51fee08f9e7020074738150441305e83af2Alan Cox new_serial.flags |= (info->port.flags & ASYNC_FLAGS); 20701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2071eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby MoxaSetFifo(info, new_serial.type == PORT_16550A); 20721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->type = new_serial.type; 2074eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby return 0; 20751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/***************************************************************************** 20801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Static local functions: * 20811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *****************************************************************************/ 20821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2083b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaSetFifo(struct moxa_port *port, int enable) 20841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2085b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby void __iomem *ofsAddr = port->tableAddr; 20861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!enable) { 20881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetRxFIFOTrig, 0); 20891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetTxFIFOCnt, 1); 20901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 20911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetRxFIFOTrig, 3); 20921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetTxFIFOCnt, 16); 20931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2095