moxa.c revision c6fc826e4c51d2c54913c2a6d800159a2c7dac4b
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); 166e8c62103fd5fecc8d2086bae244b32d089892175Alan Coxstatic DEFINE_SPINLOCK(moxa_lock); 167c6fc826e4c51d2c54913c2a6d800159a2c7dac4bRakib Mullick 168d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slabystatic unsigned long baseaddr[MAX_BOARDS]; 169d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slabystatic unsigned int type[MAX_BOARDS]; 170d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slabystatic unsigned int numports[MAX_BOARDS]; 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_AUTHOR("William Chen"); 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DESCRIPTION("MOXA Intellio Family Multiport Board Device Driver"); 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("GPL"); 175c6fc826e4c51d2c54913c2a6d800159a2c7dac4bRakib Mullick 176d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slabymodule_param_array(type, uint, NULL, 0); 177d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri SlabyMODULE_PARM_DESC(type, "card type: C218=2, C320=4"); 178d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slabymodule_param_array(baseaddr, ulong, NULL, 0); 179d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri SlabyMODULE_PARM_DESC(baseaddr, "base address"); 180d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slabymodule_param_array(numports, uint, NULL, 0); 181d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri SlabyMODULE_PARM_DESC(numports, "numports (ignored for C218)"); 182c6fc826e4c51d2c54913c2a6d800159a2c7dac4bRakib Mullick 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_param(ttymajor, int, 0); 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * static functions: 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_open(struct tty_struct *, struct file *); 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_close(struct tty_struct *, struct file *); 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_write(struct tty_struct *, const unsigned char *, int); 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_write_room(struct tty_struct *); 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_flush_buffer(struct tty_struct *); 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_chars_in_buffer(struct tty_struct *); 194606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Coxstatic void moxa_set_termios(struct tty_struct *, struct ktermios *); 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_stop(struct tty_struct *); 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_start(struct tty_struct *); 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_hangup(struct tty_struct *); 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_tiocmget(struct tty_struct *tty, struct file *file); 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_tiocmset(struct tty_struct *tty, struct file *file, 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int set, unsigned int clear); 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_poll(unsigned long); 202db1acaa632870ec87b65e062bc72ca375837a1f6Alan Coxstatic void moxa_set_tty_param(struct tty_struct *, struct ktermios *); 203f176178ba09d27cc33988435e2c9fe078b44998cAlan Coxstatic void moxa_shutdown(struct tty_port *); 20431f35939d1d9bcfb3099b32c67b896d2792603f9Alan Coxstatic int moxa_carrier_raised(struct tty_port *); 205f176178ba09d27cc33988435e2c9fe078b44998cAlan Coxstatic void moxa_dtr_rts(struct tty_port *, int); 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * moxa board interface functions: 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 209b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortEnable(struct moxa_port *); 210b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortDisable(struct moxa_port *); 211b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortSetTermio(struct moxa_port *, struct ktermios *, speed_t); 212b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortGetLineOut(struct moxa_port *, int *, int *); 213b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortLineCtrl(struct moxa_port *, int, int); 214b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortFlowCtrl(struct moxa_port *, int, int, int, int, int); 215b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortLineStatus(struct moxa_port *); 216b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortFlushData(struct moxa_port *, int); 217d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Coxstatic int MoxaPortWriteData(struct tty_struct *, const unsigned char *, int); 2187bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slabystatic int MoxaPortReadData(struct moxa_port *); 219b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortTxQueue(struct moxa_port *); 220b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortRxQueue(struct moxa_port *); 221b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortTxFree(struct moxa_port *); 222b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortTxDisable(struct moxa_port *); 223b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortTxEnable(struct moxa_port *); 2248f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slabystatic int moxa_get_serial_info(struct moxa_port *, struct serial_struct __user *); 2258f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slabystatic int moxa_set_serial_info(struct moxa_port *, struct serial_struct __user *); 226b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaSetFifo(struct moxa_port *port, int enable); 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22874d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby/* 22974d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby * I/O functions 23074d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby */ 23174d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 232a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Coxstatic DEFINE_SPINLOCK(moxafunc_lock); 233a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox 23474d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slabystatic void moxa_wait_finish(void __iomem *ofsAddr) 23574d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby{ 23674d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby unsigned long end = jiffies + moxaFuncTout; 23774d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 23874d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby while (readw(ofsAddr + FuncCode) != 0) 23974d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby if (time_after(jiffies, end)) 24074d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby return; 24174d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby if (readw(ofsAddr + FuncCode) != 0 && printk_ratelimit()) 24274d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby printk(KERN_WARNING "moxa function expired\n"); 24374d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby} 24474d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 245eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slabystatic void moxafunc(void __iomem *ofsAddr, u16 cmd, u16 arg) 24674d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby{ 247f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox unsigned long flags; 248f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox spin_lock_irqsave(&moxafunc_lock, flags); 24974d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby writew(arg, ofsAddr + FuncArg); 25074d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby writew(cmd, ofsAddr + FuncCode); 25174d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby moxa_wait_finish(ofsAddr); 252f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox spin_unlock_irqrestore(&moxafunc_lock, flags); 253f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox} 254f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox 255f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Coxstatic int moxafuncret(void __iomem *ofsAddr, u16 cmd, u16 arg) 256f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox{ 257f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox unsigned long flags; 258f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox u16 ret; 259f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox spin_lock_irqsave(&moxafunc_lock, flags); 260f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox writew(arg, ofsAddr + FuncArg); 261f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox writew(cmd, ofsAddr + FuncCode); 262f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox moxa_wait_finish(ofsAddr); 263f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox ret = readw(ofsAddr + FuncArg); 264f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox spin_unlock_irqrestore(&moxafunc_lock, flags); 265f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox return ret; 26674d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby} 26774d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 2687bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slabystatic void moxa_low_water_check(void __iomem *ofsAddr) 2697bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby{ 2707bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby u16 rptr, wptr, mask, len; 2717bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 2727bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby if (readb(ofsAddr + FlagStat) & Xoff_state) { 2737bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby rptr = readw(ofsAddr + RXrptr); 2747bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby wptr = readw(ofsAddr + RXwptr); 2757bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby mask = readw(ofsAddr + RX_mask); 2767bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby len = (wptr - rptr) & mask; 2777bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby if (len <= Low_water) 2787bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby moxafunc(ofsAddr, FC_SendXon, 0); 2797bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby } 2807bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby} 2817bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 28274d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby/* 28374d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby * TTY operations 28474d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby */ 28574d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 28674d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slabystatic int moxa_ioctl(struct tty_struct *tty, struct file *file, 28774d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby unsigned int cmd, unsigned long arg) 28874d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby{ 28974d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby struct moxa_port *ch = tty->driver_data; 29074d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby void __user *argp = (void __user *)arg; 291a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby int status, ret = 0; 29274d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 29374d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby if (tty->index == MAX_PORTS) { 29474d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby if (cmd != MOXA_GETDATACOUNT && cmd != MOXA_GET_IOQUEUE && 29574d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby cmd != MOXA_GETMSTATUS) 29674d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby return -EINVAL; 29774d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby } else if (!ch) 29874d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby return -ENODEV; 29974d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 30074d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby switch (cmd) { 30174d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby case MOXA_GETDATACOUNT: 30274d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby moxaLog.tick = jiffies; 303a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby if (copy_to_user(argp, &moxaLog, sizeof(moxaLog))) 304a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby ret = -EFAULT; 305a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby break; 30674d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby case MOXA_FLUSH_QUEUE: 30774d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby MoxaPortFlushData(ch, arg); 308a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby break; 30974d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby case MOXA_GET_IOQUEUE: { 31074d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby struct moxaq_str __user *argm = argp; 31174d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby struct moxaq_str tmp; 31274d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby struct moxa_port *p; 31374d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby unsigned int i, j; 31474d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 31574d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby for (i = 0; i < MAX_BOARDS; i++) { 31674d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby p = moxa_boards[i].ports; 31774d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby for (j = 0; j < MAX_PORTS_PER_BOARD; j++, p++, argm++) { 31874d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby memset(&tmp, 0, sizeof(tmp)); 319e8c62103fd5fecc8d2086bae244b32d089892175Alan Cox spin_lock_bh(&moxa_lock); 32074d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby if (moxa_boards[i].ready) { 32174d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby tmp.inq = MoxaPortRxQueue(p); 32274d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby tmp.outq = MoxaPortTxQueue(p); 32374d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby } 324e8c62103fd5fecc8d2086bae244b32d089892175Alan Cox spin_unlock_bh(&moxa_lock); 325e8c62103fd5fecc8d2086bae244b32d089892175Alan Cox if (copy_to_user(argm, &tmp, sizeof(tmp))) 32674d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby return -EFAULT; 32774d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby } 32874d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby } 329a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby break; 33074d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby } case MOXA_GET_OQUEUE: 33174d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby status = MoxaPortTxQueue(ch); 332a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby ret = put_user(status, (unsigned long __user *)argp); 333a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby break; 33474d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby case MOXA_GET_IQUEUE: 33574d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby status = MoxaPortRxQueue(ch); 336a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby ret = put_user(status, (unsigned long __user *)argp); 337a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby break; 33874d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby case MOXA_GETMSTATUS: { 33974d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby struct mxser_mstatus __user *argm = argp; 34074d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby struct mxser_mstatus tmp; 34174d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby struct moxa_port *p; 34274d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby unsigned int i, j; 34374d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 34474d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby for (i = 0; i < MAX_BOARDS; i++) { 34574d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby p = moxa_boards[i].ports; 34674d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby for (j = 0; j < MAX_PORTS_PER_BOARD; j++, p++, argm++) { 347d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox struct tty_struct *ttyp; 34874d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby memset(&tmp, 0, sizeof(tmp)); 349e8c62103fd5fecc8d2086bae244b32d089892175Alan Cox spin_lock_bh(&moxa_lock); 350e8c62103fd5fecc8d2086bae244b32d089892175Alan Cox if (!moxa_boards[i].ready) { 351e8c62103fd5fecc8d2086bae244b32d089892175Alan Cox spin_unlock_bh(&moxa_lock); 35274d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby goto copy; 353e8c62103fd5fecc8d2086bae244b32d089892175Alan Cox } 35474d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 35574d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby status = MoxaPortLineStatus(p); 356e8c62103fd5fecc8d2086bae244b32d089892175Alan Cox spin_unlock_bh(&moxa_lock); 357e8c62103fd5fecc8d2086bae244b32d089892175Alan Cox 35874d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby if (status & 1) 35974d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby tmp.cts = 1; 36074d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby if (status & 2) 36174d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby tmp.dsr = 1; 36274d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby if (status & 4) 36374d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby tmp.dcd = 1; 36474d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 365d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox ttyp = tty_port_tty_get(&p->port); 366d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox if (!ttyp || !ttyp->termios) 36774d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby tmp.cflag = p->cflag; 36874d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby else 369d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox tmp.cflag = ttyp->termios->c_cflag; 370d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox tty_kref_put(tty); 37174d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slabycopy: 372e8c62103fd5fecc8d2086bae244b32d089892175Alan Cox if (copy_to_user(argm, &tmp, sizeof(tmp))) 37374d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby return -EFAULT; 37474d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby } 37574d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby } 376a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby break; 37774d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby } 37874d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby case TIOCGSERIAL: 379a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox mutex_lock(&ch->port.mutex); 380a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby ret = moxa_get_serial_info(ch, argp); 381a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox mutex_unlock(&ch->port.mutex); 382a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby break; 38374d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby case TIOCSSERIAL: 384a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox mutex_lock(&ch->port.mutex); 385a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby ret = moxa_set_serial_info(ch, argp); 386a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox mutex_unlock(&ch->port.mutex); 387a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby break; 388a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby default: 389a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby ret = -ENOIOCTLCMD; 39074d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby } 391a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby return ret; 39274d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby} 39374d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 3949e98966c7bb94355689478bc84cc3e0c190f977eAlan Coxstatic int moxa_break_ctl(struct tty_struct *tty, int state) 39574d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby{ 39674d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby struct moxa_port *port = tty->driver_data; 39774d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 39874d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby moxafunc(port->tableAddr, state ? FC_SendBreak : FC_StopBreak, 39974d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby Magic_code); 4009e98966c7bb94355689478bc84cc3e0c190f977eAlan Cox return 0; 40174d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby} 40274d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 403b68e31d0ebbcc909d1941f9f230c9d062a3a13d3Jeff Dikestatic const struct tty_operations moxa_ops = { 4041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .open = moxa_open, 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .close = moxa_close, 4061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .write = moxa_write, 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .write_room = moxa_write_room, 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .flush_buffer = moxa_flush_buffer, 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .chars_in_buffer = moxa_chars_in_buffer, 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .ioctl = moxa_ioctl, 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .set_termios = moxa_set_termios, 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .stop = moxa_stop, 4131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .start = moxa_start, 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .hangup = moxa_hangup, 41574d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby .break_ctl = moxa_break_ctl, 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .tiocmget = moxa_tiocmget, 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .tiocmset = moxa_tiocmset, 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 42031f35939d1d9bcfb3099b32c67b896d2792603f9Alan Coxstatic const struct tty_port_operations moxa_port_ops = { 42131f35939d1d9bcfb3099b32c67b896d2792603f9Alan Cox .carrier_raised = moxa_carrier_raised, 422f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox .dtr_rts = moxa_dtr_rts, 423f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox .shutdown = moxa_shutdown, 42431f35939d1d9bcfb3099b32c67b896d2792603f9Alan Cox}; 42531f35939d1d9bcfb3099b32c67b896d2792603f9Alan Cox 426aa7e5221fb47badbea618cc62704d6e4a4bcce15Jiri Slabystatic struct tty_driver *moxaDriver; 427aa7e5221fb47badbea618cc62704d6e4a4bcce15Jiri Slabystatic DEFINE_TIMER(moxaTimer, moxa_poll, 0, 0); 42833f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox 42974d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby/* 43074d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby * HW init 43174d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby */ 43274d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby 433037182346f0991683cc7320a257c3f6089432ceeJiri Slabystatic int moxa_check_fw_model(struct moxa_board_conf *brd, u8 model) 434037182346f0991683cc7320a257c3f6089432ceeJiri Slaby{ 435037182346f0991683cc7320a257c3f6089432ceeJiri Slaby switch (brd->boardType) { 436037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_C218_ISA: 437037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_C218_PCI: 438037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (model != 1) 439037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 440037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 441037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_CP204J: 442037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (model != 3) 443037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 444037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 445037182346f0991683cc7320a257c3f6089432ceeJiri Slaby default: 446037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (model != 2) 447037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 448037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 449037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 450037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return 0; 451037182346f0991683cc7320a257c3f6089432ceeJiri Slabyerr: 452037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -EINVAL; 453037182346f0991683cc7320a257c3f6089432ceeJiri Slaby} 454037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 455037182346f0991683cc7320a257c3f6089432ceeJiri Slabystatic int moxa_check_fw(const void *ptr) 456037182346f0991683cc7320a257c3f6089432ceeJiri Slaby{ 457037182346f0991683cc7320a257c3f6089432ceeJiri Slaby const __le16 *lptr = ptr; 458037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 459037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (*lptr != cpu_to_le16(0x7980)) 460037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -EINVAL; 461037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 462037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return 0; 463037182346f0991683cc7320a257c3f6089432ceeJiri Slaby} 464037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 465037182346f0991683cc7320a257c3f6089432ceeJiri Slabystatic int moxa_load_bios(struct moxa_board_conf *brd, const u8 *buf, 466037182346f0991683cc7320a257c3f6089432ceeJiri Slaby size_t len) 467037182346f0991683cc7320a257c3f6089432ceeJiri Slaby{ 468037182346f0991683cc7320a257c3f6089432ceeJiri Slaby void __iomem *baseAddr = brd->basemem; 469037182346f0991683cc7320a257c3f6089432ceeJiri Slaby u16 tmp; 470037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 471037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writeb(HW_reset, baseAddr + Control_reg); /* reset */ 472037182346f0991683cc7320a257c3f6089432ceeJiri Slaby msleep(10); 473037182346f0991683cc7320a257c3f6089432ceeJiri Slaby memset_io(baseAddr, 0, 4096); 474037182346f0991683cc7320a257c3f6089432ceeJiri Slaby memcpy_toio(baseAddr, buf, len); /* download BIOS */ 475037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writeb(0, baseAddr + Control_reg); /* restart */ 476037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 477037182346f0991683cc7320a257c3f6089432ceeJiri Slaby msleep(2000); 478037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 479037182346f0991683cc7320a257c3f6089432ceeJiri Slaby switch (brd->boardType) { 480037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_C218_ISA: 481037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_C218_PCI: 482037182346f0991683cc7320a257c3f6089432ceeJiri Slaby tmp = readw(baseAddr + C218_key); 483037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (tmp != C218_KeyCode) 484037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 485037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 486037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_CP204J: 487037182346f0991683cc7320a257c3f6089432ceeJiri Slaby tmp = readw(baseAddr + C218_key); 488037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (tmp != CP204J_KeyCode) 489037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 490037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 491037182346f0991683cc7320a257c3f6089432ceeJiri Slaby default: 492037182346f0991683cc7320a257c3f6089432ceeJiri Slaby tmp = readw(baseAddr + C320_key); 493037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (tmp != C320_KeyCode) 494037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 495037182346f0991683cc7320a257c3f6089432ceeJiri Slaby tmp = readw(baseAddr + C320_status); 496037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (tmp != STS_init) { 497eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby printk(KERN_ERR "MOXA: bios upload failed -- CPU/Basic " 498037182346f0991683cc7320a257c3f6089432ceeJiri Slaby "module not found\n"); 499037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -EIO; 500037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 501037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 502037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 503037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 504037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return 0; 505037182346f0991683cc7320a257c3f6089432ceeJiri Slabyerr: 506eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby printk(KERN_ERR "MOXA: bios upload failed -- board not found\n"); 507037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -EIO; 508037182346f0991683cc7320a257c3f6089432ceeJiri Slaby} 509037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 510037182346f0991683cc7320a257c3f6089432ceeJiri Slabystatic int moxa_load_320b(struct moxa_board_conf *brd, const u8 *ptr, 511037182346f0991683cc7320a257c3f6089432ceeJiri Slaby size_t len) 512037182346f0991683cc7320a257c3f6089432ceeJiri Slaby{ 513037182346f0991683cc7320a257c3f6089432ceeJiri Slaby void __iomem *baseAddr = brd->basemem; 514037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 515037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (len < 7168) { 516eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby printk(KERN_ERR "MOXA: invalid 320 bios -- too short\n"); 517037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -EINVAL; 518037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 519037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 520037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(len - 7168 - 2, baseAddr + C320bapi_len); 521037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writeb(1, baseAddr + Control_reg); /* Select Page 1 */ 522037182346f0991683cc7320a257c3f6089432ceeJiri Slaby memcpy_toio(baseAddr + DynPage_addr, ptr, 7168); 523037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writeb(2, baseAddr + Control_reg); /* Select Page 2 */ 524037182346f0991683cc7320a257c3f6089432ceeJiri Slaby memcpy_toio(baseAddr + DynPage_addr, ptr + 7168, len - 7168); 525037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 526037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return 0; 527037182346f0991683cc7320a257c3f6089432ceeJiri Slaby} 528037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 5295292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slabystatic int moxa_real_load_code(struct moxa_board_conf *brd, const void *ptr, 530037182346f0991683cc7320a257c3f6089432ceeJiri Slaby size_t len) 531037182346f0991683cc7320a257c3f6089432ceeJiri Slaby{ 532037182346f0991683cc7320a257c3f6089432ceeJiri Slaby void __iomem *baseAddr = brd->basemem; 533b46f69cd24b9020433f8f153e7d9194b5bfdf5e2Harvey Harrison const __le16 *uptr = ptr; 534037182346f0991683cc7320a257c3f6089432ceeJiri Slaby size_t wlen, len2, j; 5355292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby unsigned long key, loadbuf, loadlen, checksum, checksum_ok; 53608d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby unsigned int i, retry; 537037182346f0991683cc7320a257c3f6089432ceeJiri Slaby u16 usum, keycode; 538037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 5395292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby keycode = (brd->boardType == MOXA_BOARD_CP204J) ? CP204J_KeyCode : 5405292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby C218_KeyCode; 541037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 5425292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby switch (brd->boardType) { 5435292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby case MOXA_BOARD_CP204J: 5445292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby case MOXA_BOARD_C218_ISA: 5455292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby case MOXA_BOARD_C218_PCI: 5465292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby key = C218_key; 5475292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby loadbuf = C218_LoadBuf; 5485292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby loadlen = C218DLoad_len; 5495292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby checksum = C218check_sum; 5505292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby checksum_ok = C218chksum_ok; 5515292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby break; 5525292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby default: 5535292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby key = C320_key; 5545292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby keycode = C320_KeyCode; 5555292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby loadbuf = C320_LoadBuf; 5565292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby loadlen = C320DLoad_len; 5575292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby checksum = C320check_sum; 5585292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby checksum_ok = C320chksum_ok; 5595292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby break; 560037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 561037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 562037182346f0991683cc7320a257c3f6089432ceeJiri Slaby usum = 0; 563037182346f0991683cc7320a257c3f6089432ceeJiri Slaby wlen = len >> 1; 564037182346f0991683cc7320a257c3f6089432ceeJiri Slaby for (i = 0; i < wlen; i++) 565037182346f0991683cc7320a257c3f6089432ceeJiri Slaby usum += le16_to_cpu(uptr[i]); 566037182346f0991683cc7320a257c3f6089432ceeJiri Slaby retry = 0; 567037182346f0991683cc7320a257c3f6089432ceeJiri Slaby do { 568037182346f0991683cc7320a257c3f6089432ceeJiri Slaby wlen = len >> 1; 569037182346f0991683cc7320a257c3f6089432ceeJiri Slaby j = 0; 570037182346f0991683cc7320a257c3f6089432ceeJiri Slaby while (wlen) { 571037182346f0991683cc7320a257c3f6089432ceeJiri Slaby len2 = (wlen > 2048) ? 2048 : wlen; 572037182346f0991683cc7320a257c3f6089432ceeJiri Slaby wlen -= len2; 5735292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby memcpy_toio(baseAddr + loadbuf, ptr + j, len2 << 1); 574037182346f0991683cc7320a257c3f6089432ceeJiri Slaby j += len2 << 1; 5755292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby 5765292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(len2, baseAddr + loadlen); 5775292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(0, baseAddr + key); 5785292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby for (i = 0; i < 100; i++) { 5795292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby if (readw(baseAddr + key) == keycode) 580037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 581037182346f0991683cc7320a257c3f6089432ceeJiri Slaby msleep(10); 582037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 5835292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby if (readw(baseAddr + key) != keycode) 584037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -EIO; 585037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 5865292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(0, baseAddr + loadlen); 5875292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(usum, baseAddr + checksum); 5885292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(0, baseAddr + key); 5895292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby for (i = 0; i < 100; i++) { 5905292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby if (readw(baseAddr + key) == keycode) 591037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 592037182346f0991683cc7320a257c3f6089432ceeJiri Slaby msleep(10); 593037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 594037182346f0991683cc7320a257c3f6089432ceeJiri Slaby retry++; 5955292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby } while ((readb(baseAddr + checksum_ok) != 1) && (retry < 3)); 5965292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby if (readb(baseAddr + checksum_ok) != 1) 597037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -EIO; 598037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 5995292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(0, baseAddr + key); 600037182346f0991683cc7320a257c3f6089432ceeJiri Slaby for (i = 0; i < 600; i++) { 601037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (readw(baseAddr + Magic_no) == Magic_code) 602037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 603037182346f0991683cc7320a257c3f6089432ceeJiri Slaby msleep(10); 604037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 605037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (readw(baseAddr + Magic_no) != Magic_code) 606037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -EIO; 607037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 60808d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby if (MOXA_IS_320(brd)) { 6095292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby if (brd->busType == MOXA_BUS_TYPE_PCI) { /* ASIC board */ 6105292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(0x3800, baseAddr + TMS320_PORT1); 6115292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(0x3900, baseAddr + TMS320_PORT2); 6125292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(28499, baseAddr + TMS320_CLOCK); 6135292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby } else { 6145292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(0x3200, baseAddr + TMS320_PORT1); 6155292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(0x3400, baseAddr + TMS320_PORT2); 6165292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(19999, baseAddr + TMS320_CLOCK); 6175292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby } 618037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 619037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(1, baseAddr + Disable_IRQ); 620037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(0, baseAddr + Magic_no); 621037182346f0991683cc7320a257c3f6089432ceeJiri Slaby for (i = 0; i < 500; i++) { 622037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (readw(baseAddr + Magic_no) == Magic_code) 623037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 624037182346f0991683cc7320a257c3f6089432ceeJiri Slaby msleep(10); 625037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 626037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (readw(baseAddr + Magic_no) != Magic_code) 627037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -EIO; 628037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 62908d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby if (MOXA_IS_320(brd)) { 6305292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby j = readw(baseAddr + Module_cnt); 6315292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby if (j <= 0) 6325292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby return -EIO; 6335292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby brd->numPorts = j * 8; 6345292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(j, baseAddr + Module_no); 6355292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby writew(0, baseAddr + Magic_no); 6365292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby for (i = 0; i < 600; i++) { 6375292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby if (readw(baseAddr + Magic_no) == Magic_code) 6385292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby break; 6395292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby msleep(10); 6405292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby } 6415292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby if (readw(baseAddr + Magic_no) != Magic_code) 6425292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby return -EIO; 643037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 644037182346f0991683cc7320a257c3f6089432ceeJiri Slaby brd->intNdx = baseAddr + IRQindex; 645037182346f0991683cc7320a257c3f6089432ceeJiri Slaby brd->intPend = baseAddr + IRQpending; 646037182346f0991683cc7320a257c3f6089432ceeJiri Slaby brd->intTable = baseAddr + IRQtable; 647037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 648037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return 0; 649037182346f0991683cc7320a257c3f6089432ceeJiri Slaby} 650037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 651037182346f0991683cc7320a257c3f6089432ceeJiri Slabystatic int moxa_load_code(struct moxa_board_conf *brd, const void *ptr, 652037182346f0991683cc7320a257c3f6089432ceeJiri Slaby size_t len) 653037182346f0991683cc7320a257c3f6089432ceeJiri Slaby{ 654037182346f0991683cc7320a257c3f6089432ceeJiri Slaby void __iomem *ofsAddr, *baseAddr = brd->basemem; 655037182346f0991683cc7320a257c3f6089432ceeJiri Slaby struct moxa_port *port; 656037182346f0991683cc7320a257c3f6089432ceeJiri Slaby int retval, i; 657037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 658037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (len % 2) { 659eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby printk(KERN_ERR "MOXA: bios length is not even\n"); 660037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return -EINVAL; 661037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 662037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 6635292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby retval = moxa_real_load_code(brd, ptr, len); /* may change numPorts */ 6645292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby if (retval) 6655292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby return retval; 6665292bcd38e4bcd147905941b5e37b5b0da1a5577Jiri Slaby 667037182346f0991683cc7320a257c3f6089432ceeJiri Slaby switch (brd->boardType) { 668037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_C218_ISA: 669037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_C218_PCI: 670037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_CP204J: 671037182346f0991683cc7320a257c3f6089432ceeJiri Slaby port = brd->ports; 672037182346f0991683cc7320a257c3f6089432ceeJiri Slaby for (i = 0; i < brd->numPorts; i++, port++) { 673b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby port->board = brd; 674037182346f0991683cc7320a257c3f6089432ceeJiri Slaby port->DCDState = 0; 675037182346f0991683cc7320a257c3f6089432ceeJiri Slaby port->tableAddr = baseAddr + Extern_table + 676037182346f0991683cc7320a257c3f6089432ceeJiri Slaby Extern_size * i; 677037182346f0991683cc7320a257c3f6089432ceeJiri Slaby ofsAddr = port->tableAddr; 678037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C218rx_mask, ofsAddr + RX_mask); 679037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C218tx_mask, ofsAddr + TX_mask); 680037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C218rx_spage + i * C218buf_pageno, ofsAddr + Page_rxb); 681037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(readw(ofsAddr + Page_rxb) + C218rx_pageno, ofsAddr + EndPage_rxb); 682037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 683037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C218tx_spage + i * C218buf_pageno, ofsAddr + Page_txb); 684037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(readw(ofsAddr + Page_txb) + C218tx_pageno, ofsAddr + EndPage_txb); 685037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 686037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 687037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 688037182346f0991683cc7320a257c3f6089432ceeJiri Slaby default: 689037182346f0991683cc7320a257c3f6089432ceeJiri Slaby port = brd->ports; 690037182346f0991683cc7320a257c3f6089432ceeJiri Slaby for (i = 0; i < brd->numPorts; i++, port++) { 691b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby port->board = brd; 692037182346f0991683cc7320a257c3f6089432ceeJiri Slaby port->DCDState = 0; 693037182346f0991683cc7320a257c3f6089432ceeJiri Slaby port->tableAddr = baseAddr + Extern_table + 694037182346f0991683cc7320a257c3f6089432ceeJiri Slaby Extern_size * i; 695037182346f0991683cc7320a257c3f6089432ceeJiri Slaby ofsAddr = port->tableAddr; 696037182346f0991683cc7320a257c3f6089432ceeJiri Slaby switch (brd->numPorts) { 697037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case 8: 698037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p8rx_mask, ofsAddr + RX_mask); 699037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p8tx_mask, ofsAddr + TX_mask); 700037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p8rx_spage + i * C320p8buf_pgno, ofsAddr + Page_rxb); 701037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(readw(ofsAddr + Page_rxb) + C320p8rx_pgno, ofsAddr + EndPage_rxb); 702037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p8tx_spage + i * C320p8buf_pgno, ofsAddr + Page_txb); 703037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(readw(ofsAddr + Page_txb) + C320p8tx_pgno, ofsAddr + EndPage_txb); 704037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 705037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 706037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case 16: 707037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p16rx_mask, ofsAddr + RX_mask); 708037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p16tx_mask, ofsAddr + TX_mask); 709037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p16rx_spage + i * C320p16buf_pgno, ofsAddr + Page_rxb); 710037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(readw(ofsAddr + Page_rxb) + C320p16rx_pgno, ofsAddr + EndPage_rxb); 711037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p16tx_spage + i * C320p16buf_pgno, ofsAddr + Page_txb); 712037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(readw(ofsAddr + Page_txb) + C320p16tx_pgno, ofsAddr + EndPage_txb); 713037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 714037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 715037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case 24: 716037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p24rx_mask, ofsAddr + RX_mask); 717037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p24tx_mask, ofsAddr + TX_mask); 718037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p24rx_spage + i * C320p24buf_pgno, ofsAddr + Page_rxb); 719037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(readw(ofsAddr + Page_rxb) + C320p24rx_pgno, ofsAddr + EndPage_rxb); 720037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p24tx_spage + i * C320p24buf_pgno, ofsAddr + Page_txb); 721037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(readw(ofsAddr + Page_txb), ofsAddr + EndPage_txb); 722037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 723037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case 32: 724037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p32rx_mask, ofsAddr + RX_mask); 725037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p32tx_mask, ofsAddr + TX_mask); 726037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p32tx_ofs, ofsAddr + Ofs_txb); 727037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p32rx_spage + i * C320p32buf_pgno, ofsAddr + Page_rxb); 728037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(readb(ofsAddr + Page_rxb), ofsAddr + EndPage_rxb); 729037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(C320p32tx_spage + i * C320p32buf_pgno, ofsAddr + Page_txb); 730037182346f0991683cc7320a257c3f6089432ceeJiri Slaby writew(readw(ofsAddr + Page_txb), ofsAddr + EndPage_txb); 731037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 732037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 733037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 734037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 735037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 736037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return 0; 737037182346f0991683cc7320a257c3f6089432ceeJiri Slaby} 738037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 739037182346f0991683cc7320a257c3f6089432ceeJiri Slabystatic int moxa_load_fw(struct moxa_board_conf *brd, const struct firmware *fw) 740037182346f0991683cc7320a257c3f6089432ceeJiri Slaby{ 7412bca76e89bc43f86136080536858048ebffab3e3David Howells const void *ptr = fw->data; 742037182346f0991683cc7320a257c3f6089432ceeJiri Slaby char rsn[64]; 743037182346f0991683cc7320a257c3f6089432ceeJiri Slaby u16 lens[5]; 744037182346f0991683cc7320a257c3f6089432ceeJiri Slaby size_t len; 745037182346f0991683cc7320a257c3f6089432ceeJiri Slaby unsigned int a, lenp, lencnt; 746037182346f0991683cc7320a257c3f6089432ceeJiri Slaby int ret = -EINVAL; 747037182346f0991683cc7320a257c3f6089432ceeJiri Slaby struct { 748037182346f0991683cc7320a257c3f6089432ceeJiri Slaby __le32 magic; /* 0x34303430 */ 749037182346f0991683cc7320a257c3f6089432ceeJiri Slaby u8 reserved1[2]; 750037182346f0991683cc7320a257c3f6089432ceeJiri Slaby u8 type; /* UNIX = 3 */ 751037182346f0991683cc7320a257c3f6089432ceeJiri Slaby u8 model; /* C218T=1, C320T=2, CP204=3 */ 752037182346f0991683cc7320a257c3f6089432ceeJiri Slaby u8 reserved2[8]; 753037182346f0991683cc7320a257c3f6089432ceeJiri Slaby __le16 len[5]; 7542bca76e89bc43f86136080536858048ebffab3e3David Howells } const *hdr = ptr; 755037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 756037182346f0991683cc7320a257c3f6089432ceeJiri Slaby BUILD_BUG_ON(ARRAY_SIZE(hdr->len) != ARRAY_SIZE(lens)); 757037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 758037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (fw->size < MOXA_FW_HDRLEN) { 759037182346f0991683cc7320a257c3f6089432ceeJiri Slaby strcpy(rsn, "too short (even header won't fit)"); 760037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 761037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 762037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (hdr->magic != cpu_to_le32(0x30343034)) { 763037182346f0991683cc7320a257c3f6089432ceeJiri Slaby sprintf(rsn, "bad magic: %.8x", le32_to_cpu(hdr->magic)); 764037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 765037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 766037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (hdr->type != 3) { 767037182346f0991683cc7320a257c3f6089432ceeJiri Slaby sprintf(rsn, "not for linux, type is %u", hdr->type); 768037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 769037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 770037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (moxa_check_fw_model(brd, hdr->model)) { 771037182346f0991683cc7320a257c3f6089432ceeJiri Slaby sprintf(rsn, "not for this card, model is %u", hdr->model); 772037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 773037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 774037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 775037182346f0991683cc7320a257c3f6089432ceeJiri Slaby len = MOXA_FW_HDRLEN; 776037182346f0991683cc7320a257c3f6089432ceeJiri Slaby lencnt = hdr->model == 2 ? 5 : 3; 777037182346f0991683cc7320a257c3f6089432ceeJiri Slaby for (a = 0; a < ARRAY_SIZE(lens); a++) { 778037182346f0991683cc7320a257c3f6089432ceeJiri Slaby lens[a] = le16_to_cpu(hdr->len[a]); 779037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (lens[a] && len + lens[a] <= fw->size && 780037182346f0991683cc7320a257c3f6089432ceeJiri Slaby moxa_check_fw(&fw->data[len])) 781eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby printk(KERN_WARNING "MOXA firmware: unexpected input " 782037182346f0991683cc7320a257c3f6089432ceeJiri Slaby "at offset %u, but going on\n", (u32)len); 783037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (!lens[a] && a < lencnt) { 784037182346f0991683cc7320a257c3f6089432ceeJiri Slaby sprintf(rsn, "too few entries in fw file"); 785037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 786037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 787037182346f0991683cc7320a257c3f6089432ceeJiri Slaby len += lens[a]; 788037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 789037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 790037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (len != fw->size) { 791037182346f0991683cc7320a257c3f6089432ceeJiri Slaby sprintf(rsn, "bad length: %u (should be %u)", (u32)fw->size, 792037182346f0991683cc7320a257c3f6089432ceeJiri Slaby (u32)len); 793037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 794037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 795037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 796037182346f0991683cc7320a257c3f6089432ceeJiri Slaby ptr += MOXA_FW_HDRLEN; 797037182346f0991683cc7320a257c3f6089432ceeJiri Slaby lenp = 0; /* bios */ 798037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 799037182346f0991683cc7320a257c3f6089432ceeJiri Slaby strcpy(rsn, "read above"); 800037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 801037182346f0991683cc7320a257c3f6089432ceeJiri Slaby ret = moxa_load_bios(brd, ptr, lens[lenp]); 802037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (ret) 803037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 804037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 805037182346f0991683cc7320a257c3f6089432ceeJiri Slaby /* we skip the tty section (lens[1]), since we don't need it */ 806037182346f0991683cc7320a257c3f6089432ceeJiri Slaby ptr += lens[lenp] + lens[lenp + 1]; 807037182346f0991683cc7320a257c3f6089432ceeJiri Slaby lenp += 2; /* comm */ 808037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 809037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (hdr->model == 2) { 810037182346f0991683cc7320a257c3f6089432ceeJiri Slaby ret = moxa_load_320b(brd, ptr, lens[lenp]); 811037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (ret) 812037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 813037182346f0991683cc7320a257c3f6089432ceeJiri Slaby /* skip another tty */ 814037182346f0991683cc7320a257c3f6089432ceeJiri Slaby ptr += lens[lenp] + lens[lenp + 1]; 815037182346f0991683cc7320a257c3f6089432ceeJiri Slaby lenp += 2; 816037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 817037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 818037182346f0991683cc7320a257c3f6089432ceeJiri Slaby ret = moxa_load_code(brd, ptr, lens[lenp]); 819037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (ret) 820037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err; 821037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 822037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return 0; 823037182346f0991683cc7320a257c3f6089432ceeJiri Slabyerr: 824037182346f0991683cc7320a257c3f6089432ceeJiri Slaby printk(KERN_ERR "firmware failed to load, reason: %s\n", rsn); 825037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return ret; 826037182346f0991683cc7320a257c3f6089432ceeJiri Slaby} 827037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 828037182346f0991683cc7320a257c3f6089432ceeJiri Slabystatic int moxa_init_board(struct moxa_board_conf *brd, struct device *dev) 829037182346f0991683cc7320a257c3f6089432ceeJiri Slaby{ 830037182346f0991683cc7320a257c3f6089432ceeJiri Slaby const struct firmware *fw; 831037182346f0991683cc7320a257c3f6089432ceeJiri Slaby const char *file; 832810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby struct moxa_port *p; 833810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby unsigned int i; 834037182346f0991683cc7320a257c3f6089432ceeJiri Slaby int ret; 835037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 836810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby brd->ports = kcalloc(MAX_PORTS_PER_BOARD, sizeof(*brd->ports), 837810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby GFP_KERNEL); 838810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby if (brd->ports == NULL) { 839810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby printk(KERN_ERR "cannot allocate memory for ports\n"); 840810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby ret = -ENOMEM; 841810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby goto err; 842810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby } 843810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby 844810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby for (i = 0, p = brd->ports; i < MAX_PORTS_PER_BOARD; i++, p++) { 84544b7d1b37f786c61d0e382b6f72f605f73de284bAlan Cox tty_port_init(&p->port); 84631f35939d1d9bcfb3099b32c67b896d2792603f9Alan Cox p->port.ops = &moxa_port_ops; 847810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby p->type = PORT_16550A; 848810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby p->cflag = B9600 | CS8 | CREAD | CLOCAL | HUPCL; 849810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby } 850810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby 851037182346f0991683cc7320a257c3f6089432ceeJiri Slaby switch (brd->boardType) { 852037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_C218_ISA: 853037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_C218_PCI: 854037182346f0991683cc7320a257c3f6089432ceeJiri Slaby file = "c218tunx.cod"; 855037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 856037182346f0991683cc7320a257c3f6089432ceeJiri Slaby case MOXA_BOARD_CP204J: 857037182346f0991683cc7320a257c3f6089432ceeJiri Slaby file = "cp204unx.cod"; 858037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 859037182346f0991683cc7320a257c3f6089432ceeJiri Slaby default: 860037182346f0991683cc7320a257c3f6089432ceeJiri Slaby file = "c320tunx.cod"; 861037182346f0991683cc7320a257c3f6089432ceeJiri Slaby break; 862037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 863037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 864037182346f0991683cc7320a257c3f6089432ceeJiri Slaby ret = request_firmware(&fw, file, dev); 865037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (ret) { 866ec09cd562135158dcb8a6c08e5a9efa36febedb1Jiri Slaby printk(KERN_ERR "MOXA: request_firmware failed. Make sure " 867ec09cd562135158dcb8a6c08e5a9efa36febedb1Jiri Slaby "you've placed '%s' file into your firmware " 868ec09cd562135158dcb8a6c08e5a9efa36febedb1Jiri Slaby "loader directory (e.g. /lib/firmware)\n", 869ec09cd562135158dcb8a6c08e5a9efa36febedb1Jiri Slaby file); 870810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby goto err_free; 871037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 872037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 873037182346f0991683cc7320a257c3f6089432ceeJiri Slaby ret = moxa_load_fw(brd, fw); 874037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 875037182346f0991683cc7320a257c3f6089432ceeJiri Slaby release_firmware(fw); 876810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby 877810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby if (ret) 878810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby goto err_free; 879810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby 8802a5413416b6b2fd8a5a38601a4fe3b56a52cfb86Jiri Slaby spin_lock_bh(&moxa_lock); 881810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby brd->ready = 1; 8820bcc4caadc8f5396b52950ee03c67b76875602dfJiri Slaby if (!timer_pending(&moxaTimer)) 8830bcc4caadc8f5396b52950ee03c67b76875602dfJiri Slaby mod_timer(&moxaTimer, jiffies + HZ / 50); 8842a5413416b6b2fd8a5a38601a4fe3b56a52cfb86Jiri Slaby spin_unlock_bh(&moxa_lock); 8850bcc4caadc8f5396b52950ee03c67b76875602dfJiri Slaby 886810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby return 0; 887810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slabyerr_free: 888810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby kfree(brd->ports); 889810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slabyerr: 890037182346f0991683cc7320a257c3f6089432ceeJiri Slaby return ret; 891037182346f0991683cc7320a257c3f6089432ceeJiri Slaby} 892037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 893810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slabystatic void moxa_board_deinit(struct moxa_board_conf *brd) 894810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby{ 895a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby unsigned int a, opened; 896a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby 897a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby mutex_lock(&moxa_openlock); 8987bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby spin_lock_bh(&moxa_lock); 899810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby brd->ready = 0; 9007bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby spin_unlock_bh(&moxa_lock); 901a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby 902a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby /* pci hot-un-plug support */ 903a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby for (a = 0; a < brd->numPorts; a++) 904d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox if (brd->ports[a].port.flags & ASYNC_INITIALIZED) { 905d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox struct tty_struct *tty = tty_port_tty_get( 906d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox &brd->ports[a].port); 907d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox if (tty) { 908d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox tty_hangup(tty); 909d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox tty_kref_put(tty); 910d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox } 911d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox } 912a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby while (1) { 913a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby opened = 0; 914a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby for (a = 0; a < brd->numPorts; a++) 9159de6a51fee08f9e7020074738150441305e83af2Alan Cox if (brd->ports[a].port.flags & ASYNC_INITIALIZED) 916a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby opened++; 917a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby mutex_unlock(&moxa_openlock); 918a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby if (!opened) 919a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby break; 920a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby msleep(50); 921a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby mutex_lock(&moxa_openlock); 922a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby } 923a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby 924810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby iounmap(brd->basemem); 925810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby brd->basemem = NULL; 926810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby kfree(brd->ports); 927810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby} 928810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby 9291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PCI 9309cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slabystatic int __devinit moxa_pci_probe(struct pci_dev *pdev, 9319cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby const struct pci_device_id *ent) 9321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9339cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby struct moxa_board_conf *board; 9349cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby unsigned int i; 9359cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby int board_type = ent->driver_data; 9369cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby int retval; 9379cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby 9389cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby retval = pci_enable_device(pdev); 9397aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby if (retval) { 9407aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby dev_err(&pdev->dev, "can't enable pci device\n"); 9419cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby goto err; 9427aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby } 9439cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby 9449cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby for (i = 0; i < MAX_BOARDS; i++) 9459cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby if (moxa_boards[i].basemem == NULL) 9469cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby break; 9479cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby 9489cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby retval = -ENODEV; 9499cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby if (i >= MAX_BOARDS) { 9507aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby dev_warn(&pdev->dev, "more than %u MOXA Intellio family boards " 9519cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby "found. Board is ignored.\n", MAX_BOARDS); 9529cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby goto err; 9539cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby } 9549cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby 9559cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby board = &moxa_boards[i]; 956e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby 957e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby retval = pci_request_region(pdev, 2, "moxa-base"); 958e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby if (retval) { 959e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby dev_err(&pdev->dev, "can't request pci region 2\n"); 960e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby goto err; 961e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby } 962e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby 96324cb233520f01971d6d873cb52c64bbbb0665ac0Alan Cox board->basemem = ioremap_nocache(pci_resource_start(pdev, 2), 0x4000); 9647aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby if (board->basemem == NULL) { 9657aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby dev_err(&pdev->dev, "can't remap io space 2\n"); 966e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby goto err_reg; 9677aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby } 9689cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby 9691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds board->boardType = board_type; 9701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (board_type) { 9711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_BOARD_C218_ISA: 9721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_BOARD_C218_PCI: 9731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds board->numPorts = 8; 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MOXA_BOARD_CP204J: 9771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds board->numPorts = 4; 9781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 9801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds board->numPorts = 0; 9811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds board->busType = MOXA_BUS_TYPE_PCI; 984a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby 985037182346f0991683cc7320a257c3f6089432ceeJiri Slaby retval = moxa_init_board(board, &pdev->dev); 986037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (retval) 987037182346f0991683cc7320a257c3f6089432ceeJiri Slaby goto err_base; 988037182346f0991683cc7320a257c3f6089432ceeJiri Slaby 9899cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby pci_set_drvdata(pdev, board); 9901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 991bb9f910a1153101a2f92620f1e7d0fda786c9812Jiri Slaby dev_info(&pdev->dev, "board '%s' ready (%u ports, firmware loaded)\n", 992bb9f910a1153101a2f92620f1e7d0fda786c9812Jiri Slaby moxa_brdname[board_type - 1], board->numPorts); 993bb9f910a1153101a2f92620f1e7d0fda786c9812Jiri Slaby 994eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby return 0; 995037182346f0991683cc7320a257c3f6089432ceeJiri Slabyerr_base: 996037182346f0991683cc7320a257c3f6089432ceeJiri Slaby iounmap(board->basemem); 997037182346f0991683cc7320a257c3f6089432ceeJiri Slaby board->basemem = NULL; 998e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slabyerr_reg: 999e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby pci_release_region(pdev, 2); 10009cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slabyerr: 10019cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby return retval; 10029cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby} 10039cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby 10049cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slabystatic void __devexit moxa_pci_remove(struct pci_dev *pdev) 10059cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby{ 10069cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby struct moxa_board_conf *brd = pci_get_drvdata(pdev); 10079cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby 1008810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby moxa_board_deinit(brd); 1009810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby 1010e46a5e3ff06b70690d567bdc81faf6c1c32e742fJiri Slaby pci_release_region(pdev, 2); 10111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1012a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby 1013a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slabystatic struct pci_driver moxa_pci_driver = { 1014a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby .name = "moxa", 1015a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby .id_table = moxa_pcibrds, 1016a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby .probe = moxa_pci_probe, 1017a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby .remove = __devexit_p(moxa_pci_remove) 1018a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby}; 10191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_PCI */ 10201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init moxa_init(void) 10221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1023810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby unsigned int isabrds = 0; 1024d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby int retval = 0; 1025c6fc826e4c51d2c54913c2a6d800159a2c7dac4bRakib Mullick struct moxa_board_conf *brd = moxa_boards; 1026c6fc826e4c51d2c54913c2a6d800159a2c7dac4bRakib Mullick unsigned int i; 10271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10287aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby printk(KERN_INFO "MOXA Intellio family driver version %s\n", 10297aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby MOXA_VERSION); 10301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver = alloc_tty_driver(MAX_PORTS + 1); 10311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!moxaDriver) 10321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 10331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->owner = THIS_MODULE; 10359b4e3b13b147e9b737de63188a9ae740eaa8c36dSergey Vlasov moxaDriver->name = "ttyMX"; 10361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->major = ttymajor; 10371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->minor_start = 0; 10381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->type = TTY_DRIVER_TYPE_SERIAL; 10391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->subtype = SERIAL_TYPE_NORMAL; 10401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->init_termios = tty_std_termios; 10411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->init_termios.c_cflag = B9600 | CS8 | CREAD | CLOCAL | HUPCL; 1042606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Cox moxaDriver->init_termios.c_ispeed = 9600; 1043606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Cox moxaDriver->init_termios.c_ospeed = 9600; 10441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaDriver->flags = TTY_DRIVER_REAL_RAW; 10451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_set_operations(moxaDriver, &moxa_ops); 10461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tty_register_driver(moxaDriver)) { 1048eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby printk(KERN_ERR "can't register MOXA Smartio tty driver!\n"); 10491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds put_tty_driver(moxaDriver); 10501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -1; 10511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1053d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby /* Find the boards defined from module args. */ 1054c6fc826e4c51d2c54913c2a6d800159a2c7dac4bRakib Mullick 10551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < MAX_BOARDS; i++) { 1056d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby if (!baseaddr[i]) 1057d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby break; 1058d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby if (type[i] == MOXA_BOARD_C218_ISA || 1059d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby type[i] == MOXA_BOARD_C320_ISA) { 10607aeb95daf37dbd72f63cdd52d86a8b5d89e59394Jiri Slaby pr_debug("Moxa board %2d: %s board(baseAddr=%lx)\n", 1061d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby isabrds + 1, moxa_brdname[type[i] - 1], 1062d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby baseaddr[i]); 1063d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby brd->boardType = type[i]; 1064d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby brd->numPorts = type[i] == MOXA_BOARD_C218_ISA ? 8 : 1065d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby numports[i]; 1066d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby brd->busType = MOXA_BUS_TYPE_ISA; 106724cb233520f01971d6d873cb52c64bbbb0665ac0Alan Cox brd->basemem = ioremap_nocache(baseaddr[i], 0x4000); 1068d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby if (!brd->basemem) { 1069eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby printk(KERN_ERR "MOXA: can't remap %lx\n", 1070d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby baseaddr[i]); 10711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 10721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1073037182346f0991683cc7320a257c3f6089432ceeJiri Slaby if (moxa_init_board(brd, NULL)) { 1074037182346f0991683cc7320a257c3f6089432ceeJiri Slaby iounmap(brd->basemem); 1075037182346f0991683cc7320a257c3f6089432ceeJiri Slaby brd->basemem = NULL; 1076037182346f0991683cc7320a257c3f6089432ceeJiri Slaby continue; 1077037182346f0991683cc7320a257c3f6089432ceeJiri Slaby } 1078d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby 1079bb9f910a1153101a2f92620f1e7d0fda786c9812Jiri Slaby printk(KERN_INFO "MOXA isa board found at 0x%.8lu and " 1080bb9f910a1153101a2f92620f1e7d0fda786c9812Jiri Slaby "ready (%u ports, firmware loaded)\n", 1081bb9f910a1153101a2f92620f1e7d0fda786c9812Jiri Slaby baseaddr[i], brd->numPorts); 1082bb9f910a1153101a2f92620f1e7d0fda786c9812Jiri Slaby 1083d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby brd++; 1084d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby isabrds++; 10851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1087a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby 10881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PCI 1089a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby retval = pci_register_driver(&moxa_pci_driver); 1090a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby if (retval) { 1091eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby printk(KERN_ERR "Can't register MOXA pci driver!\n"); 1092d353eca4e0480fddcb088c4692e1edba0a82eac9Jiri Slaby if (isabrds) 1093a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby retval = 0; 10941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1096a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby 1097a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby return retval; 10981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __exit moxa_exit(void) 11011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1102eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby unsigned int i; 11031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11049cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby#ifdef CONFIG_PCI 1105a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby pci_unregister_driver(&moxa_pci_driver); 11069cde5bf027556bd1e58caa14bfe8cdba64192eddJiri Slaby#endif 1107a784bf7c195f9eca1188562c54952e4bf9791437Jiri Slaby 1108810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby for (i = 0; i < MAX_BOARDS; i++) /* ISA boards */ 1109810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby if (moxa_boards[i].ready) 1110810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby moxa_board_deinit(&moxa_boards[i]); 11112a5413416b6b2fd8a5a38601a4fe3b56a52cfb86Jiri Slaby 11122a5413416b6b2fd8a5a38601a4fe3b56a52cfb86Jiri Slaby del_timer_sync(&moxaTimer); 11132a5413416b6b2fd8a5a38601a4fe3b56a52cfb86Jiri Slaby 11142a5413416b6b2fd8a5a38601a4fe3b56a52cfb86Jiri Slaby if (tty_unregister_driver(moxaDriver)) 11152a5413416b6b2fd8a5a38601a4fe3b56a52cfb86Jiri Slaby printk(KERN_ERR "Couldn't unregister MOXA Intellio family " 11162a5413416b6b2fd8a5a38601a4fe3b56a52cfb86Jiri Slaby "serial driver\n"); 11172a5413416b6b2fd8a5a38601a4fe3b56a52cfb86Jiri Slaby put_tty_driver(moxaDriver); 11181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_init(moxa_init); 11211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_exit(moxa_exit); 11221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1123f176178ba09d27cc33988435e2c9fe078b44998cAlan Coxstatic void moxa_shutdown(struct tty_port *port) 1124a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby{ 1125f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox struct moxa_port *ch = container_of(port, struct moxa_port, port); 1126f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox MoxaPortDisable(ch); 1127a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby MoxaPortFlushData(ch, 2); 1128f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox clear_bit(ASYNCB_NORMAL_ACTIVE, &port->flags); 1129a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby} 1130a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby 113131f35939d1d9bcfb3099b32c67b896d2792603f9Alan Coxstatic int moxa_carrier_raised(struct tty_port *port) 113231f35939d1d9bcfb3099b32c67b896d2792603f9Alan Cox{ 113331f35939d1d9bcfb3099b32c67b896d2792603f9Alan Cox struct moxa_port *ch = container_of(port, struct moxa_port, port); 113431f35939d1d9bcfb3099b32c67b896d2792603f9Alan Cox int dcd; 113531f35939d1d9bcfb3099b32c67b896d2792603f9Alan Cox 11368482bcd58530ad5857d7187854132f2b846db681Alan Cox spin_lock_irq(&port->lock); 113731f35939d1d9bcfb3099b32c67b896d2792603f9Alan Cox dcd = ch->DCDState; 11388482bcd58530ad5857d7187854132f2b846db681Alan Cox spin_unlock_irq(&port->lock); 113931f35939d1d9bcfb3099b32c67b896d2792603f9Alan Cox return dcd; 114031f35939d1d9bcfb3099b32c67b896d2792603f9Alan Cox} 114131f35939d1d9bcfb3099b32c67b896d2792603f9Alan Cox 1142f176178ba09d27cc33988435e2c9fe078b44998cAlan Coxstatic void moxa_dtr_rts(struct tty_port *port, int onoff) 1143a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby{ 1144f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox struct moxa_port *ch = container_of(port, struct moxa_port, port); 1145f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox MoxaPortLineCtrl(ch, onoff, onoff); 1146a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby} 1147a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby 1148f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox 11491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_open(struct tty_struct *tty, struct file *filp) 11501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1151810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby struct moxa_board_conf *brd; 11528f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch; 11531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int port; 11541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int retval; 11551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 115611324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby port = tty->index; 11571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port == MAX_PORTS) { 115874d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby return capable(CAP_SYS_ADMIN) ? 0 : -EPERM; 11591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1160a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby if (mutex_lock_interruptible(&moxa_openlock)) 1161a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby return -ERESTARTSYS; 1162810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby brd = &moxa_boards[port / MAX_PORTS_PER_BOARD]; 1163a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby if (!brd->ready) { 1164a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby mutex_unlock(&moxa_openlock); 1165810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby return -ENODEV; 1166a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby } 11671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1168f0e8527726b9e56649b9eafde3bc0fbc4dd2dd47Dirk Eibach if (port % MAX_PORTS_PER_BOARD >= brd->numPorts) { 1169f0e8527726b9e56649b9eafde3bc0fbc4dd2dd47Dirk Eibach mutex_unlock(&moxa_openlock); 1170f0e8527726b9e56649b9eafde3bc0fbc4dd2dd47Dirk Eibach return -ENODEV; 1171f0e8527726b9e56649b9eafde3bc0fbc4dd2dd47Dirk Eibach } 1172f0e8527726b9e56649b9eafde3bc0fbc4dd2dd47Dirk Eibach 1173810ab09b2f3a4e9a6f553e3d1e84a27f4074de9cJiri Slaby ch = &brd->ports[port % MAX_PORTS_PER_BOARD]; 11749de6a51fee08f9e7020074738150441305e83af2Alan Cox ch->port.count++; 11751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty->driver_data = ch; 1176d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox tty_port_tty_set(&ch->port, tty); 1177f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox mutex_lock(&ch->port.mutex); 11789de6a51fee08f9e7020074738150441305e83af2Alan Cox if (!(ch->port.flags & ASYNC_INITIALIZED)) { 11791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->statusflags = 0; 1180db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox moxa_set_tty_param(tty, tty->termios); 1181b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortLineCtrl(ch, 1, 1); 1182b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortEnable(ch); 1183a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby MoxaSetFifo(ch, ch->type == PORT_16550A); 11849de6a51fee08f9e7020074738150441305e83af2Alan Cox ch->port.flags |= ASYNC_INITIALIZED; 11851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1186f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox mutex_unlock(&ch->port.mutex); 1187a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby mutex_unlock(&moxa_openlock); 11881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1189f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox retval = tty_port_block_til_ready(&ch->port, tty, filp); 1190f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox if (retval == 0) 1191f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox set_bit(ASYNCB_NORMAL_ACTIVE, &ch->port.flags); 1192a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby return retval; 11931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_close(struct tty_struct *tty, struct file *filp) 11961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1197f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox struct moxa_port *ch = tty->driver_data; 11981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ch->cflag = tty->termios->c_cflag; 1199f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox tty_port_close(&ch->port, tty, filp); 12001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_write(struct tty_struct *tty, 12031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const unsigned char *buf, int count) 12041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1205b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby struct moxa_port *ch = tty->driver_data; 1206b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby int len; 12071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 1209b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby return 0; 121033f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox 12117bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby spin_lock_bh(&moxa_lock); 1212d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox len = MoxaPortWriteData(tty, buf, count); 12137bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby spin_unlock_bh(&moxa_lock); 12141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1215a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox set_bit(LOWWAIT, &ch->statusflags); 1216eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby return len; 12171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_write_room(struct tty_struct *tty) 12201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 12218f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slaby struct moxa_port *ch; 12221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tty->stopped) 1224eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby return 0; 1225b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby ch = tty->driver_data; 12261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 1227eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby return 0; 1228b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby return MoxaPortTxFree(ch); 12291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_flush_buffer(struct tty_struct *tty) 12321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1233b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby struct moxa_port *ch = tty->driver_data; 12341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 12361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 1237b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortFlushData(ch, 1); 12381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tty_wakeup(tty); 12391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_chars_in_buffer(struct tty_struct *tty) 12421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1243b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby struct moxa_port *ch = tty->driver_data; 12441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int chars; 12451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1246b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby chars = MoxaPortTxQueue(ch); 1247f710ebd7f70801e31751f2c49fe4b92a477d24ebAlan Cox if (chars) 12481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 12491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Make it possible to wakeup anything waiting for output 12501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * in tty_ioctl.c, etc. 12511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1252f710ebd7f70801e31751f2c49fe4b92a477d24ebAlan Cox set_bit(EMPTYWAIT, &ch->statusflags); 1253eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby return chars; 12541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_tiocmget(struct tty_struct *tty, struct file *file) 12571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 12588482bcd58530ad5857d7187854132f2b846db681Alan Cox struct moxa_port *ch = tty->driver_data; 12591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int flag = 0, dtr, rts; 12601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1261b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortGetLineOut(ch, &dtr, &rts); 12621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dtr) 12631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds flag |= TIOCM_DTR; 12641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rts) 12651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds flag |= TIOCM_RTS; 1266b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby dtr = MoxaPortLineStatus(ch); 12671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dtr & 1) 12681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds flag |= TIOCM_CTS; 12691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dtr & 2) 12701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds flag |= TIOCM_DSR; 12711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dtr & 4) 12721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds flag |= TIOCM_CD; 12731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return flag; 12741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int moxa_tiocmset(struct tty_struct *tty, struct file *file, 12771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int set, unsigned int clear) 12781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1279a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby struct moxa_port *ch; 12801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int port; 12811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int dtr, rts; 12821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 128311324edd4ad34981764b25bed44d46a1507b62e1Jiri Slaby port = tty->index; 1284a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby mutex_lock(&moxa_openlock); 1285a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby ch = tty->driver_data; 1286a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby if (!ch) { 1287a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby mutex_unlock(&moxa_openlock); 128874d7d97b9e2a090a4b1812b5074ac6c539234ebbJiri Slaby return -EINVAL; 1289a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby } 12901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1291b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortGetLineOut(ch, &dtr, &rts); 12921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (set & TIOCM_RTS) 12931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rts = 1; 12941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (set & TIOCM_DTR) 12951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dtr = 1; 12961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (clear & TIOCM_RTS) 12971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rts = 0; 12981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (clear & TIOCM_DTR) 12991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dtr = 0; 1300b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortLineCtrl(ch, dtr, rts); 1301a8f5cda067e2eeefe49fe386caf0f61fc5c825e0Jiri Slaby mutex_unlock(&moxa_openlock); 13021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 13031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_set_termios(struct tty_struct *tty, 1306eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby struct ktermios *old_termios) 13071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1308eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby struct moxa_port *ch = tty->driver_data; 13091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 13111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 1312db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox moxa_set_tty_param(tty, old_termios); 1313eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby if (!(old_termios->c_cflag & CLOCAL) && C_CLOCAL(tty)) 13149de6a51fee08f9e7020074738150441305e83af2Alan Cox wake_up_interruptible(&ch->port.open_wait); 13151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_stop(struct tty_struct *tty) 13181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1319eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby struct moxa_port *ch = tty->driver_data; 13201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 13221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 1323b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortTxDisable(ch); 1324a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox set_bit(TXSTOPPED, &ch->statusflags); 13251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_start(struct tty_struct *tty) 13291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1330eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby struct moxa_port *ch = tty->driver_data; 13311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ch == NULL) 13331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 13341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(ch->statusflags & TXSTOPPED)) 13361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 13371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1338b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortTxEnable(ch); 1339a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox clear_bit(TXSTOPPED, &ch->statusflags); 13401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void moxa_hangup(struct tty_struct *tty) 13431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1344a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox struct moxa_port *ch = tty->driver_data; 1345f176178ba09d27cc33988435e2c9fe078b44998cAlan Cox tty_port_hangup(&ch->port); 13461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13487bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slabystatic void moxa_new_dcdstate(struct moxa_port *p, u8 dcd) 13491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1350d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox struct tty_struct *tty; 13518482bcd58530ad5857d7187854132f2b846db681Alan Cox unsigned long flags; 13527bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby dcd = !!dcd; 13531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13548482bcd58530ad5857d7187854132f2b846db681Alan Cox spin_lock_irqsave(&p->port.lock, flags); 1355d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox if (dcd != p->DCDState) { 13568482bcd58530ad5857d7187854132f2b846db681Alan Cox p->DCDState = dcd; 13578482bcd58530ad5857d7187854132f2b846db681Alan Cox spin_unlock_irqrestore(&p->port.lock, flags); 1358d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox tty = tty_port_tty_get(&p->port); 1359d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox if (tty && C_CLOCAL(tty) && !dcd) 1360d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox tty_hangup(tty); 1361d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox tty_kref_put(tty); 13627bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby } 13638482bcd58530ad5857d7187854132f2b846db681Alan Cox else 13648482bcd58530ad5857d7187854132f2b846db681Alan Cox spin_unlock_irqrestore(&p->port.lock, flags); 13657bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby} 13661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13677bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slabystatic int moxa_poll_port(struct moxa_port *p, unsigned int handle, 13687bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby u16 __iomem *ip) 13697bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby{ 1370d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox struct tty_struct *tty = tty_port_tty_get(&p->port); 13717bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby void __iomem *ofsAddr; 13729de6a51fee08f9e7020074738150441305e83af2Alan Cox unsigned int inited = p->port.flags & ASYNC_INITIALIZED; 13737bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby u16 intr; 13747bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 13757bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby if (tty) { 1376a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox if (test_bit(EMPTYWAIT, &p->statusflags) && 13777bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby MoxaPortTxQueue(p) == 0) { 1378a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox clear_bit(EMPTYWAIT, &p->statusflags); 13797bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby tty_wakeup(tty); 13807bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby } 1381a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox if (test_bit(LOWWAIT, &p->statusflags) && !tty->stopped && 13827bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby MoxaPortTxQueue(p) <= WAKEUP_CHARS) { 1383a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox clear_bit(LOWWAIT, &p->statusflags); 13847bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby tty_wakeup(tty); 13857bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby } 13867bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 1387f9b412a8c9adb17d50922f91962e8b1e48789430Alan Cox if (inited && !test_bit(TTY_THROTTLED, &tty->flags) && 13887bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby MoxaPortRxQueue(p) > 0) { /* RX */ 13897bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby MoxaPortReadData(p); 13907bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby tty_schedule_flip(tty); 13917bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby } 13927bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby } else { 1393a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox clear_bit(EMPTYWAIT, &p->statusflags); 13947bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby MoxaPortFlushData(p, 0); /* flush RX */ 13951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13960bcc4caadc8f5396b52950ee03c67b76875602dfJiri Slaby 13977bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby if (!handle) /* nothing else to do */ 13980e0fd7d73ed130583dca16405b029f56bf65109fJiri Slaby goto put; 13997bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 14007bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby intr = readw(ip); /* port irq status */ 14017bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby if (intr == 0) 14020e0fd7d73ed130583dca16405b029f56bf65109fJiri Slaby goto put; 14037bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 14047bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby writew(0, ip); /* ACK port */ 14057bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby ofsAddr = p->tableAddr; 14067bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby if (intr & IntrTx) /* disable tx intr */ 14077bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby writew(readw(ofsAddr + HostStat) & ~WakeupTx, 14087bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby ofsAddr + HostStat); 14097bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 14107bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby if (!inited) 14110e0fd7d73ed130583dca16405b029f56bf65109fJiri Slaby goto put; 14127bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 14137bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby if (tty && (intr & IntrBreak) && !I_IGNBRK(tty)) { /* BREAK */ 14147bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby tty_insert_flip_char(tty, 0, TTY_BREAK); 14157bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby tty_schedule_flip(tty); 14167bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby } 14177bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 14187bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby if (intr & IntrLine) 14197bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby moxa_new_dcdstate(p, readb(ofsAddr + FlagStat) & DCD_state); 14200e0fd7d73ed130583dca16405b029f56bf65109fJiri Slabyput: 14210e0fd7d73ed130583dca16405b029f56bf65109fJiri Slaby tty_kref_put(tty); 14227bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 14237bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby return 0; 14247bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby} 14257bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 14267bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slabystatic void moxa_poll(unsigned long ignored) 14277bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby{ 14287bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby struct moxa_board_conf *brd; 14297bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby u16 __iomem *ip; 14302a5413416b6b2fd8a5a38601a4fe3b56a52cfb86Jiri Slaby unsigned int card, port, served = 0; 14317bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 14327bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby spin_lock(&moxa_lock); 14331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (card = 0; card < MAX_BOARDS; card++) { 14347bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby brd = &moxa_boards[card]; 14357bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby if (!brd->ready) 14361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 14377bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 14382a5413416b6b2fd8a5a38601a4fe3b56a52cfb86Jiri Slaby served++; 14392a5413416b6b2fd8a5a38601a4fe3b56a52cfb86Jiri Slaby 14407bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby ip = NULL; 14417bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby if (readb(brd->intPend) == 0xff) 14427bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby ip = brd->intTable + readb(brd->intNdx); 14437bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 14447bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby for (port = 0; port < brd->numPorts; port++) 14457bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby moxa_poll_port(&brd->ports[port], !!ip, ip + port); 14467bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 14477bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby if (ip) 14487bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby writeb(0, brd->intPend); /* ACK */ 14497bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby 14507bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby if (moxaLowWaterChk) { 14517bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby struct moxa_port *p = brd->ports; 14527bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby for (port = 0; port < brd->numPorts; port++, p++) 14537bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby if (p->lowChkFlag) { 14547bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby p->lowChkFlag = 0; 14557bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby moxa_low_water_check(p->tableAddr); 14561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14597bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby moxaLowWaterChk = 0; 14601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14612a5413416b6b2fd8a5a38601a4fe3b56a52cfb86Jiri Slaby if (served) 14622a5413416b6b2fd8a5a38601a4fe3b56a52cfb86Jiri Slaby mod_timer(&moxaTimer, jiffies + HZ / 50); 14632a5413416b6b2fd8a5a38601a4fe3b56a52cfb86Jiri Slaby spin_unlock(&moxa_lock); 14641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/******************************************************************************/ 14671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1468db1acaa632870ec87b65e062bc72ca375837a1f6Alan Coxstatic void moxa_set_tty_param(struct tty_struct *tty, struct ktermios *old_termios) 14691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1470eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby register struct ktermios *ts = tty->termios; 1471eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby struct moxa_port *ch = tty->driver_data; 1472db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox int rts, cts, txflow, rxflow, xany, baud; 14731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rts = cts = txflow = rxflow = xany = 0; 14751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ts->c_cflag & CRTSCTS) 14761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rts = cts = 1; 14771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ts->c_iflag & IXON) 14781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds txflow = 1; 14791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ts->c_iflag & IXOFF) 14801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rxflow = 1; 14811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ts->c_iflag & IXANY) 14821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds xany = 1; 1483db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox 1484db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox /* Clear the features we don't support */ 1485db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox ts->c_cflag &= ~CMSPAR; 1486b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby MoxaPortFlowCtrl(ch, rts, cts, txflow, rxflow, xany); 1487b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby baud = MoxaPortSetTermio(ch, ts, tty_get_baud_rate(tty)); 1488db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox if (baud == -1) 1489db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox baud = tty_termios_baud_rate(old_termios); 1490db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox /* Not put the baud rate into the termios data */ 1491db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox tty_encode_baud_rate(tty, baud, baud); 14921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/***************************************************************************** 14951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Driver level functions: * 14961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *****************************************************************************/ 14971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1498b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortFlushData(struct moxa_port *port, int mode) 14991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 15001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 1501eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby if (mode < 0 || mode > 2) 15021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 1503b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby ofsAddr = port->tableAddr; 15041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_FlushQueue, mode); 15051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (mode != 1) { 1506b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby port->lowChkFlag = 0; 15076f56b658b4e5c4486641ce62f331150954c4de37Jiri Slaby moxa_low_water_check(ofsAddr); 15081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 15121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Moxa Port Number Description: 15131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * MOXA serial driver supports up to 4 MOXA-C218/C320 boards. And, 15151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the port number using in MOXA driver functions will be 0 to 31 for 15161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * first MOXA board, 32 to 63 for second, 64 to 95 for third and 96 15171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to 127 for fourth. For example, if you setup three MOXA boards, 15181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * first board is C218, second board is C320-16 and third board is 15191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * C320-32. The port number of first board (C218 - 8 ports) is from 15201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 to 7. The port number of second board (C320 - 16 ports) is form 15211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 32 to 47. The port number of third board (C320 - 32 ports) is from 15221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 64 to 95. And those port numbers form 8 to 31, 48 to 63 and 96 to 15231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 127 will be invalid. 15241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Moxa Functions Description: 15271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 1: Driver initialization routine, this routine must be 15291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * called when initialized driver. 15301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 15311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaDriverInit(); 15321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 2: Moxa driver private IOCTL command processing. 15351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 15361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaDriverIoctl(unsigned int cmd, unsigned long arg, int port); 15371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * unsigned int cmd : IOCTL command 15391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * unsigned long arg : IOCTL argument 15401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 15411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 (OK) 15431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * -EINVAL 15441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * -ENOIOCTLCMD 15451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 6: Enable this port to start Tx/Rx data. 15481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 15491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortEnable(int port); 15501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 15511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 7: Disable this port 15541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 15551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortDisable(int port); 15561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 15571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 10: Setting baud rate of this port. 15601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 156108d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby * speed_t MoxaPortSetBaud(int port, speed_t baud); 15621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 15631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * long baud : baud rate (50 - 115200) 15641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 : this port is invalid or baud < 50 15661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 50 - 115200 : the real baud rate set to the port, if 15671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the argument baud is large than maximun 15681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * available baud rate, the real setting 15691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * baud rate will be the maximun baud rate. 15701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 12: Configure the port. 15731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 1574606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Cox * int MoxaPortSetTermio(int port, struct ktermios *termio, speed_t baud); 15751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 1576606d099cdd1080bbb50ea50dc52d98252f8f10a1Alan Cox * struct ktermios * termio : termio structure pointer 1577c7bce3097c0f9bbed76ee6fd03742f2624031a45Alan Cox * speed_t baud : baud rate 15781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: -1 : this port is invalid or termio == NULL 15801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 : setting O.K. 15811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 13: Get the DTR/RTS state of this port. 15841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 15851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortGetLineOut(int port, int *dtrState, int *rtsState); 15861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 15871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int * dtrState : pointer to INT to receive the current DTR 15881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * state. (if NULL, this function will not 15891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * write to this address) 15901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int * rtsState : pointer to INT to receive the current RTS 15911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * state. (if NULL, this function will not 15921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * write to this address) 15931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: -1 : this port is invalid 15951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 : O.K. 15961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 14: Setting the DTR/RTS output state of this port. 15991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 16001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortLineCtrl(int port, int dtrState, int rtsState); 16011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 16021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int dtrState : DTR output state (0: off, 1: on) 16031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int rtsState : RTS output state (0: off, 1: on) 16041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 15: Setting the flow control of this port. 16071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 16081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortFlowCtrl(int port, int rtsFlow, int ctsFlow, int rxFlow, 16091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int txFlow,int xany); 16101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 16111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int rtsFlow : H/W RTS flow control (0: no, 1: yes) 16121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int ctsFlow : H/W CTS flow control (0: no, 1: yes) 16131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int rxFlow : S/W Rx XON/XOFF flow control (0: no, 1: yes) 16141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int txFlow : S/W Tx XON/XOFF flow control (0: no, 1: yes) 16151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int xany : S/W XANY flow control (0: no, 1: yes) 16161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 16: Get ths line status of this port 16191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 16201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortLineStatus(int port); 16211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 16221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: Bit 0 - CTS state (0: off, 1: on) 16241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Bit 1 - DSR state (0: off, 1: on) 16251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Bit 2 - DCD state (0: off, 1: on) 16261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 19: Flush the Rx/Tx buffer data of this port. 16291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 16301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortFlushData(int port, int mode); 16311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 16321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int mode 16331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0 : flush the Rx buffer 16341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1 : flush the Tx buffer 16351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2 : flush the Rx and Tx buffer 16361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 20: Write data. 16391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 16401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortWriteData(int port, unsigned char * buffer, int length); 16411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 16421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * unsigned char * buffer : pointer to write data buffer. 16431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int length : write data length 16441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 - length : real write data length 16461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 21: Read data. 16491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 165033f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox * int MoxaPortReadData(int port, struct tty_struct *tty); 16511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 165233f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox * struct tty_struct *tty : tty for data 16531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 - length : real read data length 16551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 24: Get the Tx buffer current queued data bytes 16581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 16591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortTxQueue(int port); 16601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 16611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: .. : Tx buffer current queued data bytes 16631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 25: Get the Tx buffer current free space 16661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 16671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortTxFree(int port); 16681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 16691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: .. : Tx buffer current free space 16711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 26: Get the Rx buffer current queued data bytes 16741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 16751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortRxQueue(int port); 16761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 16771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: .. : Rx buffer current queued data bytes 16791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 28: Disable port data transmission. 16821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 16831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortTxDisable(int port); 16841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 16851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 29: Enable port data transmission. 16881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 16891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * void MoxaPortTxEnable(int port); 16901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 16911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Function 31: Get the received BREAK signal count and reset it. 16941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Syntax: 16951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int MoxaPortResetBrkCnt(int port); 16961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * int port : port number (0 - 127) 16971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return: 0 - .. : BREAK signal count 16991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 17011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 17021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1703b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortEnable(struct moxa_port *port) 17041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 17051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 1706eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby u16 lowwater = 512; 17071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1708b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby ofsAddr = port->tableAddr; 17091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(lowwater, ofsAddr + Low_water); 171008d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby if (MOXA_IS_320(port->board)) 17111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetBreakIrq, 0); 1712eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby else 1713eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby writew(readw(ofsAddr + HostStat) | WakeupBreak, 1714eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby ofsAddr + HostStat); 17151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetLineIrq, Magic_code); 17171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_FlushQueue, 2); 17181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_EnableCH, Magic_code); 17201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds MoxaPortLineStatus(port); 17211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1723b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortDisable(struct moxa_port *port) 17241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1725b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby void __iomem *ofsAddr = port->tableAddr; 17261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetFlowCtl, 0); /* disable flow control */ 17281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_ClrLineIrq, Magic_code); 17291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(0, ofsAddr + HostStat); 17301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_DisableCH, Magic_code); 17311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 173308d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slabystatic speed_t MoxaPortSetBaud(struct moxa_port *port, speed_t baud) 17341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 173508d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby void __iomem *ofsAddr = port->tableAddr; 173608d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby unsigned int clock, val; 173708d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby speed_t max; 17381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 173908d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby max = MOXA_IS_320(port->board) ? 460800 : 921600; 174008d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby if (baud < 50) 1741eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby return 0; 17421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (baud > max) 17431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds baud = max; 174408d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby clock = 921600; 17451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = clock / baud; 17461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetBaud, val); 17471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds baud = clock / val; 1748eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby return baud; 17491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1751b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortSetTermio(struct moxa_port *port, struct ktermios *termio, 1752b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby speed_t baud) 17531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 17541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 17551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tcflag_t cflag; 17561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tcflag_t mode = 0; 17571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1758b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby ofsAddr = port->tableAddr; 17591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cflag = termio->c_cflag; /* termio->c_cflag */ 17601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode = termio->c_cflag & CSIZE; 17621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (mode == CS5) 17631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode = MX_CS5; 17641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (mode == CS6) 17651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode = MX_CS6; 17661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (mode == CS7) 17671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode = MX_CS7; 17681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (mode == CS8) 17691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode = MX_CS8; 17701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (termio->c_cflag & CSTOPB) { 17721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (mode == MX_CS5) 17731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= MX_STOP15; 17741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 17751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= MX_STOP2; 17761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 17771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= MX_STOP1; 17781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (termio->c_cflag & PARENB) { 17801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (termio->c_cflag & PARODD) 17811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= MX_PARODD; 17821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 17831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= MX_PAREVEN; 17841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 17851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= MX_PARNONE; 17861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1787eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby moxafunc(ofsAddr, FC_SetDataMode, (u16)mode); 17881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 178908d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby if (MOXA_IS_320(port->board) && baud >= 921600) 179008d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby return -1; 179108d01c792568ba07d2bcf5202dbc8484dbff6747Jiri Slaby 1792db1acaa632870ec87b65e062bc72ca375837a1f6Alan Cox baud = MoxaPortSetBaud(port, baud); 17931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (termio->c_iflag & (IXON | IXOFF | IXANY)) { 1795f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox spin_lock_irq(&moxafunc_lock); 17961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(termio->c_cc[VSTART], ofsAddr + FuncArg); 17971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(termio->c_cc[VSTOP], ofsAddr + FuncArg1); 17981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(FC_SetXonXoff, ofsAddr + FuncCode); 17996f56b658b4e5c4486641ce62f331150954c4de37Jiri Slaby moxa_wait_finish(ofsAddr); 1800a808ac0c4a2c5d81ba38a2a76d4ddc1de40d1539Alan Cox spin_unlock_irq(&moxafunc_lock); 18011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1803eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby return baud; 18041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1806b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortGetLineOut(struct moxa_port *port, int *dtrState, 1807b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby int *rtsState) 18081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1809b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby if (dtrState) 1810b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby *dtrState = !!(port->lineCtrl & DTR_ON); 1811b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby if (rtsState) 1812b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby *rtsState = !!(port->lineCtrl & RTS_ON); 1813b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby 1814eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby return 0; 18151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1817b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortLineCtrl(struct moxa_port *port, int dtr, int rts) 18181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1819eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby u8 mode = 0; 18201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dtr) 18221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= DTR_ON; 18231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rts) 18241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= RTS_ON; 1825b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby port->lineCtrl = mode; 1826b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby moxafunc(port->tableAddr, FC_LineControl, mode); 18271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1829b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortFlowCtrl(struct moxa_port *port, int rts, int cts, 1830b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby int txflow, int rxflow, int txany) 18311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1832b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby int mode = 0; 18331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rts) 18351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= RTS_FlowCtl; 18361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cts) 18371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= CTS_FlowCtl; 18381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (txflow) 18391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= Tx_FlowCtl; 18401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rxflow) 18411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= Rx_FlowCtl; 18421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (txany) 18431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mode |= IXM_IXANY; 1844b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby moxafunc(port->tableAddr, FC_SetFlowCtl, mode); 18451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1847b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortLineStatus(struct moxa_port *port) 18481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 18491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *ofsAddr; 18501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val; 18511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1852b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby ofsAddr = port->tableAddr; 1853f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox if (MOXA_IS_320(port->board)) 1854f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox val = moxafuncret(ofsAddr, FC_LineStatus, 0); 1855f5c5a36d27ae6d9e03c2f1b7890942bf84e92c5bAlan Cox else 18561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = readw(ofsAddr + FlagStat) >> 4; 18571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val &= 0x0B; 18587bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby if (val & 8) 18591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val |= 4; 18607bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby moxa_new_dcdstate(port, val & 8); 18611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val &= 7; 18627bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby return val; 18631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1865d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Coxstatic int MoxaPortWriteData(struct tty_struct *tty, 18662108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby const unsigned char *buffer, int len) 18671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1868d450b5a0196b6442cf3f29fc611d9c8daa56b559Alan Cox struct moxa_port *port = tty->driver_data; 18691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *baseAddr, *ofsAddr, *ofs; 18702108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby unsigned int c, total; 18712108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby u16 head, tail, tx_mask, spage, epage; 18722108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby u16 pageno, pageofs, bufhead; 18731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1874b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby ofsAddr = port->tableAddr; 1875b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby baseAddr = port->board->basemem; 18761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tx_mask = readw(ofsAddr + TX_mask); 18771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spage = readw(ofsAddr + Page_txb); 18781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds epage = readw(ofsAddr + EndPage_txb); 18791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tail = readw(ofsAddr + TXwptr); 18801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds head = readw(ofsAddr + TXrptr); 18812108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby c = (head > tail) ? (head - tail - 1) : (head - tail + tx_mask); 18821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (c > len) 18831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds c = len; 18849de6a51fee08f9e7020074738150441305e83af2Alan Cox moxaLog.txcnt[port->port.tty->index] += c; 18851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds total = c; 18861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (spage == epage) { 18871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bufhead = readw(ofsAddr + Ofs_txb); 18881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(spage, baseAddr + Control_reg); 18891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (c > 0) { 18901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (head > tail) 18911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = head - tail - 1; 18921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 18931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = tx_mask + 1 - tail; 18941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = (c > len) ? len : c; 18951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofs = baseAddr + DynPage_addr + bufhead + tail; 18962108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby memcpy_toio(ofs, buffer, len); 18972108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby buffer += len; 18981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tail = (tail + len) & tx_mask; 18991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds c -= len; 19001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 19021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageno = spage + (tail >> 13); 19031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageofs = tail & Page_mask; 19042108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby while (c > 0) { 19052108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby len = Page_size - pageofs; 19062108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby if (len > c) 19072108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby len = c; 19081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(pageno, baseAddr + Control_reg); 19091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofs = baseAddr + DynPage_addr + pageofs; 19102108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby memcpy_toio(ofs, buffer, len); 19112108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby buffer += len; 19121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (++pageno == epage) 19131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageno = spage; 19141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageofs = 0; 19152108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby c -= len; 19162108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby } 19172108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby tail = (tail + total) & tx_mask; 19181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19192108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby writew(tail, ofsAddr + TXwptr); 19201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(1, ofsAddr + CD180TXirq); /* start to send */ 19212108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby return total; 19221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19247bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slabystatic int MoxaPortReadData(struct moxa_port *port) 19251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19269de6a51fee08f9e7020074738150441305e83af2Alan Cox struct tty_struct *tty = port->port.tty; 19272108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby unsigned char *dst; 19281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __iomem *baseAddr, *ofsAddr, *ofs; 19292108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby unsigned int count, len, total; 19302108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby u16 tail, rx_mask, spage, epage; 19312108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby u16 pageno, pageofs, bufhead, head; 19321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1933b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby ofsAddr = port->tableAddr; 1934b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby baseAddr = port->board->basemem; 19351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds head = readw(ofsAddr + RXrptr); 19361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tail = readw(ofsAddr + RXwptr); 19371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rx_mask = readw(ofsAddr + RX_mask); 19381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spage = readw(ofsAddr + Page_rxb); 19391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds epage = readw(ofsAddr + EndPage_rxb); 19402108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby count = (tail >= head) ? (tail - head) : (tail - head + rx_mask + 1); 19411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (count == 0) 194233f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox return 0; 19431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 194433f0f88f1c51ae5c2d593d26960c760ea154c2e2Alan Cox total = count; 19457bcf97d1dd88135b58c7adb7c3bfebab55b21a20Jiri Slaby moxaLog.rxcnt[tty->index] += total; 19461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (spage == epage) { 19471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bufhead = readw(ofsAddr + Ofs_rxb); 19481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(spage, baseAddr + Control_reg); 19491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (count > 0) { 19501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofs = baseAddr + DynPage_addr + bufhead + head; 19512108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby len = (tail >= head) ? (tail - head) : 19522108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby (rx_mask + 1 - head); 19532108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby len = tty_prepare_flip_string(tty, &dst, 19542108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby min(len, count)); 19552108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby memcpy_fromio(dst, ofs, len); 19561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds head = (head + len) & rx_mask; 19571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count -= len; 19581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 19601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageno = spage + (head >> 13); 19611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageofs = head & Page_mask; 19622108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby while (count > 0) { 19631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writew(pageno, baseAddr + Control_reg); 19641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ofs = baseAddr + DynPage_addr + pageofs; 19652108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby len = tty_prepare_flip_string(tty, &dst, 19662108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby min(Page_size - pageofs, count)); 19672108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby memcpy_fromio(dst, ofs, len); 19682108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby 19692108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby count -= len; 19702108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby pageofs = (pageofs + len) & Page_mask; 19712108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby if (pageofs == 0 && ++pageno == epage) 19721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pageno = spage; 19732108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby } 19742108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby head = (head + total) & rx_mask; 19751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19762108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby writew(head, ofsAddr + RXrptr); 19772108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby if (readb(ofsAddr + FlagStat) & Xoff_state) { 19781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxaLowWaterChk = 1; 1979b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby port->lowChkFlag = 1; 19801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19812108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby return total; 19821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1985b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortTxQueue(struct moxa_port *port) 19861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1987b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby void __iomem *ofsAddr = port->tableAddr; 19882108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby u16 rptr, wptr, mask; 19891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rptr = readw(ofsAddr + TXrptr); 19911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wptr = readw(ofsAddr + TXwptr); 19921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mask = readw(ofsAddr + TX_mask); 19932108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby return (wptr - rptr) & mask; 19941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1996b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortTxFree(struct moxa_port *port) 19971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1998b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby void __iomem *ofsAddr = port->tableAddr; 19992108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby u16 rptr, wptr, mask; 20001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rptr = readw(ofsAddr + TXrptr); 20021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wptr = readw(ofsAddr + TXwptr); 20031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mask = readw(ofsAddr + TX_mask); 20042108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby return mask - ((wptr - rptr) & mask); 20051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2007b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic int MoxaPortRxQueue(struct moxa_port *port) 20081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2009b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby void __iomem *ofsAddr = port->tableAddr; 20102108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby u16 rptr, wptr, mask; 20111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rptr = readw(ofsAddr + RXrptr); 20131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wptr = readw(ofsAddr + RXwptr); 20141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mask = readw(ofsAddr + RX_mask); 20152108eba5c531c12f5ae2ed2ef4cee7bf4246897bJiri Slaby return (wptr - rptr) & mask; 20161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2018b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortTxDisable(struct moxa_port *port) 20191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2020b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby moxafunc(port->tableAddr, FC_SetXoffState, Magic_code); 20211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2023b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaPortTxEnable(struct moxa_port *port) 20241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2025b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby moxafunc(port->tableAddr, FC_SetXonState, Magic_code); 20261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20288f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slabystatic int moxa_get_serial_info(struct moxa_port *info, 2029eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby struct serial_struct __user *retinfo) 20301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2031eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby struct serial_struct tmp = { 2032eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby .type = info->type, 20339de6a51fee08f9e7020074738150441305e83af2Alan Cox .line = info->port.tty->index, 20349de6a51fee08f9e7020074738150441305e83af2Alan Cox .flags = info->port.flags, 2035eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby .baud_base = 921600, 203644b7d1b37f786c61d0e382b6f72f605f73de284bAlan Cox .close_delay = info->port.close_delay 2037eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby }; 2038eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby return copy_to_user(retinfo, &tmp, sizeof(*retinfo)) ? -EFAULT : 0; 20391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20428f8ecbad09b48e5fe44a8d7f5344e802e9c231c8Jiri Slabystatic int moxa_set_serial_info(struct moxa_port *info, 2043eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby struct serial_struct __user *new_info) 20441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 20451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct serial_struct new_serial; 20461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2047eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby if (copy_from_user(&new_serial, new_info, sizeof(new_serial))) 20481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 20491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2050eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby if (new_serial.irq != 0 || new_serial.port != 0 || 2051eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby new_serial.custom_divisor != 0 || 2052eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby new_serial.baud_base != 921600) 2053eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby return -EPERM; 20541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_ADMIN)) { 20561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (((new_serial.flags & ~ASYNC_USR_MASK) != 20579de6a51fee08f9e7020074738150441305e83af2Alan Cox (info->port.flags & ~ASYNC_USR_MASK))) 2058eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby return -EPERM; 2059eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby } else 206044b7d1b37f786c61d0e382b6f72f605f73de284bAlan Cox info->port.close_delay = new_serial.close_delay * HZ / 100; 20611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_serial.flags = (new_serial.flags & ~ASYNC_FLAGS); 20639de6a51fee08f9e7020074738150441305e83af2Alan Cox new_serial.flags |= (info->port.flags & ASYNC_FLAGS); 20641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2065eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby MoxaSetFifo(info, new_serial.type == PORT_16550A); 20661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->type = new_serial.type; 2068eaa95a8da6366c34d3a61e93109e5f8f8a4e72a0Jiri Slaby return 0; 20691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/***************************************************************************** 20741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Static local functions: * 20751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *****************************************************************************/ 20761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2077b4173f45758a5b5185acb302c507289e661d9419Jiri Slabystatic void MoxaSetFifo(struct moxa_port *port, int enable) 20781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2079b4173f45758a5b5185acb302c507289e661d9419Jiri Slaby void __iomem *ofsAddr = port->tableAddr; 20801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!enable) { 20821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetRxFIFOTrig, 0); 20831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetTxFIFOCnt, 1); 20841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 20851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetRxFIFOTrig, 3); 20861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds moxafunc(ofsAddr, FC_SetTxFIFOCnt, 16); 20871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2089