moxa.c
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- /*****************************************************************************/
- /*
- * moxa.c -- MOXA Intellio family multiport serial driver.
- *
- * Copyright (C) 1999-2000 Moxa Technologies (support@moxa.com.tw).
- *
- * This code is loosely based on the Linux serial driver, written by
- * Linus Torvalds, Theodore T'so and others.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
- /*
- * MOXA Intellio Series Driver
- * for : LINUX
- * date : 1999/1/7
- * version : 5.1
- */
- #include <linux/config.h>
- #include <linux/module.h>
- #include <linux/types.h>
- #include <linux/version.h>
- #include <linux/mm.h>
- #include <linux/ioport.h>
- #include <linux/errno.h>
- #include <linux/signal.h>
- #include <linux/sched.h>
- #include <linux/timer.h>
- #include <linux/interrupt.h>
- #include <linux/tty.h>
- #include <linux/tty_flip.h>
- #include <linux/major.h>
- #include <linux/string.h>
- #include <linux/fcntl.h>
- #include <linux/ptrace.h>
- #include <linux/serial.h>
- #include <linux/tty_driver.h>
- #include <linux/delay.h>
- #include <linux/pci.h>
- #include <asm/system.h>
- #include <asm/io.h>
- #include <asm/segment.h>
- #include <asm/bitops.h>
- #include <asm/uaccess.h>
- #define MOXA_VERSION "5.1k"
- #define MOXAMAJOR 172
- #define MOXACUMAJOR 173
- #define put_to_user(arg1, arg2) put_user(arg1, (unsigned long *)arg2)
- #define get_from_user(arg1, arg2) get_user(arg1, (unsigned int *)arg2)
- #define MAX_BOARDS 4 /* Don't change this value */
- #define MAX_PORTS_PER_BOARD 32 /* Don't change this value */
- #define MAX_PORTS 128 /* Don't change this value */
- /*
- * Define the Moxa PCI vendor and device IDs.
- */
- #define MOXA_BUS_TYPE_ISA 0
- #define MOXA_BUS_TYPE_PCI 1
- #ifndef PCI_VENDOR_ID_MOXA
- #define PCI_VENDOR_ID_MOXA 0x1393
- #endif
- #ifndef PCI_DEVICE_ID_CP204J
- #define PCI_DEVICE_ID_CP204J 0x2040
- #endif
- #ifndef PCI_DEVICE_ID_C218
- #define PCI_DEVICE_ID_C218 0x2180
- #endif
- #ifndef PCI_DEVICE_ID_C320
- #define PCI_DEVICE_ID_C320 0x3200
- #endif
- enum {
- MOXA_BOARD_C218_PCI = 1,
- MOXA_BOARD_C218_ISA,
- MOXA_BOARD_C320_PCI,
- MOXA_BOARD_C320_ISA,
- MOXA_BOARD_CP204J,
- };
- static char *moxa_brdname[] =
- {
- "C218 Turbo PCI series",
- "C218 Turbo ISA series",
- "C320 Turbo PCI series",
- "C320 Turbo ISA series",
- "CP-204J series",
- };
- static struct pci_device_id moxa_pcibrds[] = {
- { PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_C218, PCI_ANY_ID, PCI_ANY_ID,
- 0, 0, MOXA_BOARD_C218_PCI },
- { PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_C320, PCI_ANY_ID, PCI_ANY_ID,
- 0, 0, MOXA_BOARD_C320_PCI },
- { PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_CP204J, PCI_ANY_ID, PCI_ANY_ID,
- 0, 0, MOXA_BOARD_CP204J },
- { 0 }
- };
- MODULE_DEVICE_TABLE(pci, moxa_pcibrds);
- typedef struct _moxa_isa_board_conf {
- int boardType;
- int numPorts;
- unsigned long baseAddr;
- } moxa_isa_board_conf;
- static moxa_isa_board_conf moxa_isa_boards[] =
- {
- /* {MOXA_BOARD_C218_ISA,8,0xDC000}, */
- };
- typedef struct _moxa_pci_devinfo {
- ushort busNum;
- ushort devNum;
- } moxa_pci_devinfo;
- typedef struct _moxa_board_conf {
- int boardType;
- int numPorts;
- unsigned long baseAddr;
- int busType;
- moxa_pci_devinfo pciInfo;
- } moxa_board_conf;
- static moxa_board_conf moxa_boards[MAX_BOARDS];
- static unsigned long moxaBaseAddr[MAX_BOARDS];
- struct moxa_str {
- int type;
- int port;
- int close_delay;
- unsigned short closing_wait;
- int count;
- int blocked_open;
- long event; /* long req'd for set_bit --RR */
- int asyncflags;
- long session;
- long pgrp;
- unsigned long statusflags;
- struct tty_struct *tty;
- struct termios normal_termios;
- struct termios callout_termios;
- wait_queue_head_t open_wait;
- wait_queue_head_t close_wait;
- struct tq_struct tqueue;
- };
- struct mxser_mstatus {
- tcflag_t cflag;
- int cts;
- int dsr;
- int ri;
- int dcd;
- };
- static struct mxser_mstatus GMStatus[MAX_PORTS];
- /* statusflags */
- #define TXSTOPPED 0x1
- #define LOWWAIT 0x2
- #define EMPTYWAIT 0x4
- #define THROTTLE 0x8
- /* event */
- #define MOXA_EVENT_HANGUP 1
- #define SERIAL_DO_RESTART
- #define SERIAL_TYPE_NORMAL 1
- #define SERIAL_TYPE_CALLOUT 2
- #define WAKEUP_CHARS 256
- #define PORTNO(x) (MINOR((x)->device) - (x)->driver.minor_start)
- static int verbose = 0;
- static int ttymajor = MOXAMAJOR;
- static int calloutmajor = MOXACUMAJOR;
- #ifdef MODULE
- /* Variables for insmod */
- static int baseaddr[] = {0, 0, 0, 0};
- static int type[] = {0, 0, 0, 0};
- static int numports[] = {0, 0, 0, 0};
- MODULE_AUTHOR("William Chen");
- MODULE_DESCRIPTION("MOXA Intellio Family Multiport Board Device Driver");
- MODULE_LICENSE("GPL");
- MODULE_PARM(type, "1-4i");
- MODULE_PARM(baseaddr, "1-4i");
- MODULE_PARM(numports, "1-4i");
- MODULE_PARM(ttymajor, "i");
- MODULE_PARM(calloutmajor, "i");
- MODULE_PARM(verbose, "i");
- EXPORT_NO_SYMBOLS;
- #endif //MODULE
- static struct tty_driver moxaDriver;
- static struct tty_driver moxaCallout;
- static struct tty_struct *moxaTable[MAX_PORTS + 1];
- static struct termios *moxaTermios[MAX_PORTS + 1];
- static struct termios *moxaTermiosLocked[MAX_PORTS + 1];
- static struct moxa_str moxaChannels[MAX_PORTS];
- static int moxaRefcount;
- static unsigned char *moxaXmitBuff;
- static int moxaTimer_on;
- static struct timer_list moxaTimer;
- static int moxaEmptyTimer_on[MAX_PORTS];
- static struct timer_list moxaEmptyTimer[MAX_PORTS];
- static struct semaphore moxaBuffSem;
- int moxa_init(void);
- #ifdef MODULE
- int init_module(void);
- void cleanup_module(void);
- #endif
- /*
- * static functions:
- */
- static int moxa_get_PCI_conf(struct pci_dev *, int, moxa_board_conf *);
- static void do_moxa_softint(void *);
- static int moxa_open(struct tty_struct *, struct file *);
- static void moxa_close(struct tty_struct *, struct file *);
- static int moxa_write(struct tty_struct *, int, const unsigned char *, int);
- static int moxa_write_room(struct tty_struct *);
- static void moxa_flush_buffer(struct tty_struct *);
- static int moxa_chars_in_buffer(struct tty_struct *);
- static void moxa_flush_chars(struct tty_struct *);
- static void moxa_put_char(struct tty_struct *, unsigned char);
- static int moxa_ioctl(struct tty_struct *, struct file *, unsigned int, unsigned long);
- static void moxa_throttle(struct tty_struct *);
- static void moxa_unthrottle(struct tty_struct *);
- static void moxa_set_termios(struct tty_struct *, struct termios *);
- static void moxa_stop(struct tty_struct *);
- static void moxa_start(struct tty_struct *);
- static void moxa_hangup(struct tty_struct *);
- static void moxa_poll(unsigned long);
- static void set_tty_param(struct tty_struct *);
- static int block_till_ready(struct tty_struct *, struct file *,
- struct moxa_str *);
- static void setup_empty_event(struct tty_struct *);
- static void check_xmit_empty(unsigned long);
- static void shut_down(struct moxa_str *);
- static void receive_data(struct moxa_str *);
- /*
- * moxa board interface functions:
- */
- static void MoxaDriverInit(void);
- static int MoxaDriverIoctl(unsigned int, unsigned long, int);
- static int MoxaDriverPoll(void);
- static int MoxaPortsOfCard(int);
- static int MoxaPortIsValid(int);
- static void MoxaPortEnable(int);
- static void MoxaPortDisable(int);
- static long MoxaPortGetMaxBaud(int);
- static long MoxaPortSetBaud(int, long);
- static int MoxaPortSetTermio(int, struct termios *);
- static int MoxaPortGetLineOut(int, int *, int *);
- static void MoxaPortLineCtrl(int, int, int);
- static void MoxaPortFlowCtrl(int, int, int, int, int, int);
- static int MoxaPortLineStatus(int);
- static int MoxaPortDCDChange(int);
- static int MoxaPortDCDON(int);
- static void MoxaPortFlushData(int, int);
- static int MoxaPortWriteData(int, unsigned char *, int);
- static int MoxaPortReadData(int, unsigned char *, int);
- static int MoxaPortTxQueue(int);
- static int MoxaPortRxQueue(int);
- static int MoxaPortTxFree(int);
- static void MoxaPortTxDisable(int);
- static void MoxaPortTxEnable(int);
- static int MoxaPortResetBrkCnt(int);
- static void MoxaPortSendBreak(int, int);
- static int moxa_get_serial_info(struct moxa_str *, struct serial_struct *);
- static int moxa_set_serial_info(struct moxa_str *, struct serial_struct *);
- static void MoxaSetFifo(int port, int enable);
- #ifdef MODULE
- int init_module(void)
- {
- int ret;
- if (verbose)
- printk("Loading module moxa ...n");
- ret = moxa_init();
- if (verbose)
- printk("Donen");
- return (ret);
- }
- void cleanup_module(void)
- {
- int i;
- if (verbose)
- printk("Unloading module moxa ...n");
- if (moxaTimer_on)
- del_timer(&moxaTimer);
- for (i = 0; i < MAX_PORTS; i++)
- if (moxaEmptyTimer_on[i])
- del_timer(&moxaEmptyTimer[i]);
- if (tty_unregister_driver(&moxaCallout))
- printk("Couldn't unregister MOXA Intellio family callout drivern");
- if (tty_unregister_driver(&moxaDriver))
- printk("Couldn't unregister MOXA Intellio family serial drivern");
- if (verbose)
- printk("Donen");
- }
- #endif
- int moxa_init(void)
- {
- int i, n, numBoards;
- struct moxa_str *ch;
- int ret1, ret2;
- printk(KERN_INFO "MOXA Intellio family driver version %sn", MOXA_VERSION);
- init_MUTEX(&moxaBuffSem);
- memset(&moxaDriver, 0, sizeof(struct tty_driver));
- memset(&moxaCallout, 0, sizeof(struct tty_driver));
- moxaDriver.magic = TTY_DRIVER_MAGIC;
- moxaDriver.name = "ttya";
- moxaDriver.major = ttymajor;
- moxaDriver.minor_start = 0;
- moxaDriver.num = MAX_PORTS + 1;
- moxaDriver.type = TTY_DRIVER_TYPE_SERIAL;
- moxaDriver.subtype = SERIAL_TYPE_NORMAL;
- moxaDriver.init_termios = tty_std_termios;
- moxaDriver.init_termios.c_iflag = 0;
- moxaDriver.init_termios.c_oflag = 0;
- moxaDriver.init_termios.c_cflag = B9600 | CS8 | CREAD | CLOCAL | HUPCL;
- moxaDriver.init_termios.c_lflag = 0;
- moxaDriver.flags = TTY_DRIVER_REAL_RAW;
- moxaDriver.refcount = &moxaRefcount;
- moxaDriver.table = moxaTable;
- moxaDriver.termios = moxaTermios;
- moxaDriver.termios_locked = moxaTermiosLocked;
- moxaDriver.open = moxa_open;
- moxaDriver.close = moxa_close;
- moxaDriver.write = moxa_write;
- moxaDriver.write_room = moxa_write_room;
- moxaDriver.flush_buffer = moxa_flush_buffer;
- moxaDriver.chars_in_buffer = moxa_chars_in_buffer;
- moxaDriver.flush_chars = moxa_flush_chars;
- moxaDriver.put_char = moxa_put_char;
- moxaDriver.ioctl = moxa_ioctl;
- moxaDriver.throttle = moxa_throttle;
- moxaDriver.unthrottle = moxa_unthrottle;
- moxaDriver.set_termios = moxa_set_termios;
- moxaDriver.stop = moxa_stop;
- moxaDriver.start = moxa_start;
- moxaDriver.hangup = moxa_hangup;
- moxaCallout = moxaDriver;
- moxaCallout.name = "ttyA";
- moxaCallout.major = calloutmajor;
- moxaCallout.subtype = SERIAL_TYPE_CALLOUT;
- moxaXmitBuff = 0;
- for (i = 0, ch = moxaChannels; i < MAX_PORTS; i++, ch++) {
- ch->type = PORT_16550A;
- ch->port = i;
- ch->tqueue.routine = do_moxa_softint;
- ch->tqueue.data = ch;
- ch->tty = 0;
- ch->close_delay = 5 * HZ / 10;
- ch->closing_wait = 30 * HZ;
- ch->count = 0;
- ch->blocked_open = 0;
- ch->callout_termios = moxaCallout.init_termios;
- ch->normal_termios = moxaDriver.init_termios;
- init_waitqueue_head(&ch->open_wait);
- init_waitqueue_head(&ch->close_wait);
- }
- for (i = 0; i < MAX_BOARDS; i++) {
- moxa_boards[i].boardType = 0;
- moxa_boards[i].numPorts = 0;
- moxa_boards[i].baseAddr = 0;
- moxa_boards[i].busType = 0;
- moxa_boards[i].pciInfo.busNum = 0;
- moxa_boards[i].pciInfo.devNum = 0;
- }
- MoxaDriverInit();
- printk("Tty devices major number = %d, callout devices major number = %dn", ttymajor, calloutmajor);
- ret1 = 0;
- ret2 = 0;
- if ((ret1 = tty_register_driver(&moxaDriver))) {
- printk(KERN_ERR "Couldn't install MOXA Smartio family driver !n");
- } else if ((ret2 = tty_register_driver(&moxaCallout))) {
- tty_unregister_driver(&moxaDriver);
- printk(KERN_ERR "Couldn't install MOXA Smartio family callout driver !n");
- }
- if (ret1 || ret2) {
- return -1;
- }
- for (i = 0; i < MAX_PORTS; i++) {
- init_timer(&moxaEmptyTimer[i]);
- moxaEmptyTimer[i].function = check_xmit_empty;
- moxaEmptyTimer[i].data = (unsigned long) & moxaChannels[i];
- moxaEmptyTimer_on[i] = 0;
- }
- init_timer(&moxaTimer);
- moxaTimer.function = moxa_poll;
- moxaTimer.expires = jiffies + (HZ / 50);
- moxaTimer_on = 1;
- add_timer(&moxaTimer);
- /* Find the boards defined in source code */
- numBoards = 0;
- for (i = 0; i < MAX_BOARDS; i++) {
- if ((moxa_isa_boards[i].boardType == MOXA_BOARD_C218_ISA) ||
- (moxa_isa_boards[i].boardType == MOXA_BOARD_C320_ISA)) {
- moxa_boards[numBoards].boardType = moxa_isa_boards[i].boardType;
- if (moxa_isa_boards[i].boardType == MOXA_BOARD_C218_ISA)
- moxa_boards[numBoards].numPorts = 8;
- else
- moxa_boards[numBoards].numPorts = moxa_isa_boards[i].numPorts;
- moxa_boards[numBoards].busType = MOXA_BUS_TYPE_ISA;
- moxa_boards[numBoards].baseAddr = moxa_isa_boards[i].baseAddr;
- if (verbose)
- printk("Board %2d: %s board(baseAddr=%lx)n",
- numBoards + 1,
- moxa_brdname[moxa_boards[numBoards].boardType - 1],
- moxa_boards[numBoards].baseAddr);
- numBoards++;
- }
- }
- /* Find the boards defined form module args. */
- #ifdef MODULE
- for (i = 0; i < MAX_BOARDS; i++) {
- if ((type[i] == MOXA_BOARD_C218_ISA) ||
- (type[i] == MOXA_BOARD_C320_ISA)) {
- if (verbose)
- printk("Board %2d: %s board(baseAddr=%lx)n",
- numBoards + 1,
- moxa_brdname[type[i] - 1],
- (unsigned long) baseaddr[i]);
- if (numBoards >= MAX_BOARDS) {
- if (verbose)
- printk("More than %d MOXA Intellio family boards found. Board is ignored.", MAX_BOARDS);
- continue;
- }
- moxa_boards[numBoards].boardType = type[i];
- if (moxa_isa_boards[i].boardType == MOXA_BOARD_C218_ISA)
- moxa_boards[numBoards].numPorts = 8;
- else
- moxa_boards[numBoards].numPorts = numports[i];
- moxa_boards[numBoards].busType = MOXA_BUS_TYPE_ISA;
- moxa_boards[numBoards].baseAddr = baseaddr[i];
- numBoards++;
- }
- }
- #endif
- /* Find PCI boards here */
- #ifdef CONFIG_PCI
- {
- struct pci_dev *p = NULL;
- n = (sizeof(moxa_pcibrds) / sizeof(moxa_pcibrds[0])) - 1;
- i = 0;
- while (i < n) {
- while ((p = pci_find_device(moxa_pcibrds[i].vendor, moxa_pcibrds[i].device, p))!=NULL)
- {
- if (pci_enable_device(p))
- continue;
- if (numBoards >= MAX_BOARDS) {
- if (verbose)
- printk("More than %d MOXA Intellio family boards found. Board is ignored.", MAX_BOARDS);
- } else {
- moxa_get_PCI_conf(p, moxa_pcibrds[i].driver_data,
- &moxa_boards[numBoards]);
- numBoards++;
- }
- }
- i++;
- }
- }
- #endif
- for (i = 0; i < numBoards; i++) {
- moxaBaseAddr[i] = (unsigned long) ioremap((unsigned long) moxa_boards[i].baseAddr, 0x4000);
- }
- return (0);
- }
- static int moxa_get_PCI_conf(struct pci_dev *p, int board_type, moxa_board_conf * board)
- {
- board->baseAddr = pci_resource_start (p, 2);
- board->boardType = board_type;
- switch (board_type) {
- case MOXA_BOARD_C218_ISA:
- case MOXA_BOARD_C218_PCI:
- board->numPorts = 8;
- break;
- case MOXA_BOARD_CP204J:
- board->numPorts = 4;
- break;
- default:
- board->numPorts = 0;
- break;
- }
- board->busType = MOXA_BUS_TYPE_PCI;
- board->pciInfo.busNum = p->bus->number;
- board->pciInfo.devNum = p->devfn >> 3;
- return (0);
- }
- static void do_moxa_softint(void *private_)
- {
- struct moxa_str *ch = (struct moxa_str *) private_;
- struct tty_struct *tty;
- if (ch && (tty = ch->tty)) {
- if (test_and_clear_bit(MOXA_EVENT_HANGUP, &ch->event)) {
- tty_hangup(tty); /* FIXME: module removal race here - AKPM */
- wake_up_interruptible(&ch->open_wait);
- ch->asyncflags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CALLOUT_ACTIVE);
- }
- }
- MOD_DEC_USE_COUNT;
- }
- static int moxa_open(struct tty_struct *tty, struct file *filp)
- {
- struct moxa_str *ch;
- int port;
- int retval;
- unsigned long page;
- port = PORTNO(tty);
- if (port == MAX_PORTS) {
- MOD_INC_USE_COUNT;
- return (0);
- }
- if (!MoxaPortIsValid(port)) {
- tty->driver_data = NULL;
- return (-ENODEV);
- }
- down(&moxaBuffSem);
- if (!moxaXmitBuff) {
- page = get_free_page(GFP_KERNEL);
- if (!page) {
- up(&moxaBuffSem);
- return (-ENOMEM);
- }
- /* This test is guarded by the BuffSem so no longer needed
- delete me in 2.5 */
- if (moxaXmitBuff)
- free_page(page);
- else
- moxaXmitBuff = (unsigned char *) page;
- }
- up(&moxaBuffSem);
- MOD_INC_USE_COUNT;
- ch = &moxaChannels[port];
- ch->count++;
- tty->driver_data = ch;
- ch->tty = tty;
- if (ch->count == 1 && (ch->asyncflags & ASYNC_SPLIT_TERMIOS)) {
- if (tty->driver.subtype == SERIAL_TYPE_NORMAL)
- *tty->termios = ch->normal_termios;
- else
- *tty->termios = ch->callout_termios;
- }
- ch->session = current->session;
- ch->pgrp = current->pgrp;
- if (!(ch->asyncflags & ASYNC_INITIALIZED)) {
- ch->statusflags = 0;
- set_tty_param(tty);
- MoxaPortLineCtrl(ch->port, 1, 1);
- MoxaPortEnable(ch->port);
- ch->asyncflags |= ASYNC_INITIALIZED;
- }
- retval = block_till_ready(tty, filp, ch);
- moxa_unthrottle(tty);
- if (ch->type == PORT_16550A) {
- MoxaSetFifo(ch->port, 1);
- } else {
- MoxaSetFifo(ch->port, 0);
- }
- return (retval);
- }
- static void moxa_close(struct tty_struct *tty, struct file *filp)
- {
- struct moxa_str *ch;
- int port;
- port = PORTNO(tty);
- if (port == MAX_PORTS) {
- MOD_DEC_USE_COUNT;
- return;
- }
- if (!MoxaPortIsValid(port)) {
- #ifdef SERIAL_DEBUG_CLOSE
- printk("Invalid portno in moxa_closen");
- #endif
- tty->driver_data = NULL;
- return;
- }
- if (tty->driver_data == NULL) {
- return;
- }
- if (tty_hung_up_p(filp)) {
- MOD_DEC_USE_COUNT;
- return;
- }
- ch = (struct moxa_str *) tty->driver_data;
- if ((tty->count == 1) && (ch->count != 1)) {
- printk("moxa_close: bad serial port count; tty->count is 1, "
- "ch->count is %dn", ch->count);
- ch->count = 1;
- }
- if (--ch->count < 0) {
- printk("moxa_close: bad serial port count, minor=%dn",
- MINOR(tty->device));
- ch->count = 0;
- }
- if (ch->count) {
- MOD_DEC_USE_COUNT;
- return;
- }
- ch->asyncflags |= ASYNC_CLOSING;
- /*
- * Save the termios structure, since this port may have
- * separate termios for callout and dialin.
- */
- if (ch->asyncflags & ASYNC_NORMAL_ACTIVE)
- ch->normal_termios = *tty->termios;
- if (ch->asyncflags & ASYNC_CALLOUT_ACTIVE)
- ch->callout_termios = *tty->termios;
- if (ch->asyncflags & ASYNC_INITIALIZED) {
- setup_empty_event(tty);
- tty_wait_until_sent(tty, 30 * HZ); /* 30 seconds timeout */
- moxaEmptyTimer_on[ch->port] = 0;
- del_timer(&moxaEmptyTimer[ch->port]);
- }
- shut_down(ch);
- MoxaPortFlushData(port, 2);
- if (tty->driver.flush_buffer)
- tty->driver.flush_buffer(tty);
- if (tty->ldisc.flush_buffer)
- tty->ldisc.flush_buffer(tty);
- tty->closing = 0;
- ch->event = 0;
- ch->tty = 0;
- if (ch->blocked_open) {
- if (ch->close_delay) {
- set_current_state(TASK_INTERRUPTIBLE);
- schedule_timeout(ch->close_delay);
- }
- wake_up_interruptible(&ch->open_wait);
- }
- ch->asyncflags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CALLOUT_ACTIVE |
- ASYNC_CLOSING);
- wake_up_interruptible(&ch->close_wait);
- MOD_DEC_USE_COUNT;
- }
- static int moxa_write(struct tty_struct *tty, int from_user,
- const unsigned char *buf, int count)
- {
- struct moxa_str *ch;
- int len, port;
- unsigned long flags;
- ch = (struct moxa_str *) tty->driver_data;
- if (ch == NULL)
- return (0);
- port = ch->port;
- save_flags(flags);
- if (from_user) {
- if (count > PAGE_SIZE)
- count = PAGE_SIZE;
- down(&moxaBuffSem);
- if (copy_from_user(moxaXmitBuff, buf, count)) {
- len = -EFAULT;
- } else {
- cli();
- len = MoxaPortWriteData(port, moxaXmitBuff, count);
- restore_flags(flags);
- }
- up(&moxaBuffSem);
- if (len < 0)
- return len;
- } else {
- cli();
- len = MoxaPortWriteData(port, (unsigned char *) buf, count);
- restore_flags(flags);
- }
- /*********************************************
- if ( !(ch->statusflags & LOWWAIT) &&
- ((len != count) || (MoxaPortTxFree(port) <= 100)) )
- ************************************************/
- ch->statusflags |= LOWWAIT;
- return (len);
- }
- static int moxa_write_room(struct tty_struct *tty)
- {
- struct moxa_str *ch;
- if (tty->stopped)
- return (0);
- ch = (struct moxa_str *) tty->driver_data;
- if (ch == NULL)
- return (0);
- return (MoxaPortTxFree(ch->port));
- }
- static void moxa_flush_buffer(struct tty_struct *tty)
- {
- struct moxa_str *ch = (struct moxa_str *) tty->driver_data;
- if (ch == NULL)
- return;
- MoxaPortFlushData(ch->port, 1);
- if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
- tty->ldisc.write_wakeup)
- (tty->ldisc.write_wakeup) (tty);
- wake_up_interruptible(&tty->write_wait);
- }
- static int moxa_chars_in_buffer(struct tty_struct *tty)
- {
- int chars;
- struct moxa_str *ch = (struct moxa_str *) tty->driver_data;
- /*
- * Sigh...I have to check if driver_data is NULL here, because
- * if an open() fails, the TTY subsystem eventually calls
- * tty_wait_until_sent(), which calls the driver's chars_in_buffer()
- * routine. And since the open() failed, we return 0 here. TDJ
- */
- if (ch == NULL)
- return (0);
- chars = MoxaPortTxQueue(ch->port);
- if (chars) {
- /*
- * Make it possible to wakeup anything waiting for output
- * in tty_ioctl.c, etc.
- */
- if (!(ch->statusflags & EMPTYWAIT))
- setup_empty_event(tty);
- }
- return (chars);
- }
- static void moxa_flush_chars(struct tty_struct *tty)
- {
- /*
- * Don't think I need this, because this is called to empty the TX
- * buffer for the 16450, 16550, etc.
- */
- }
- static void moxa_put_char(struct tty_struct *tty, unsigned char c)
- {
- struct moxa_str *ch;
- int port;
- unsigned long flags;
- ch = (struct moxa_str *) tty->driver_data;
- if (ch == NULL)
- return;
- port = ch->port;
- save_flags(flags);
- cli();
- moxaXmitBuff[0] = c;
- MoxaPortWriteData(port, moxaXmitBuff, 1);
- restore_flags(flags);
- /************************************************
- if ( !(ch->statusflags & LOWWAIT) && (MoxaPortTxFree(port) <= 100) )
- *************************************************/
- ch->statusflags |= LOWWAIT;
- }
- static int moxa_ioctl(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg)
- {
- struct moxa_str *ch = (struct moxa_str *) tty->driver_data;
- register int port;
- int retval, dtr, rts;
- unsigned long flag;
- port = PORTNO(tty);
- if ((port != MAX_PORTS) && (!ch))
- return (-EINVAL);
- switch (cmd) {
- case TCSBRK: /* SVID version: non-zero arg --> no break */
- retval = tty_check_change(tty);
- if (retval)
- return (retval);
- setup_empty_event(tty);
- tty_wait_until_sent(tty, 0);
- if (!arg)
- MoxaPortSendBreak(ch->port, 0);
- return (0);
- case TCSBRKP: /* support for POSIX tcsendbreak() */
- retval = tty_check_change(tty);
- if (retval)
- return (retval);
- setup_empty_event(tty);
- tty_wait_until_sent(tty, 0);
- MoxaPortSendBreak(ch->port, arg);
- return (0);
- case TIOCGSOFTCAR:
- return put_user(C_CLOCAL(tty) ? 1 : 0, (unsigned long *) arg);
- case TIOCSSOFTCAR:
- if(get_user(retval, (unsigned long *) arg))
- return -EFAULT;
- arg = retval;
- tty->termios->c_cflag = ((tty->termios->c_cflag & ~CLOCAL) |
- (arg ? CLOCAL : 0));
- if (C_CLOCAL(tty))
- ch->asyncflags &= ~ASYNC_CHECK_CD;
- else
- ch->asyncflags |= ASYNC_CHECK_CD;
- return (0);
- case TIOCMGET:
- flag = 0;
- MoxaPortGetLineOut(ch->port, &dtr, &rts);
- if (dtr)
- flag |= TIOCM_DTR;
- if (rts)
- flag |= TIOCM_RTS;
- dtr = MoxaPortLineStatus(ch->port);
- if (dtr & 1)
- flag |= TIOCM_CTS;
- if (dtr & 2)
- flag |= TIOCM_DSR;
- if (dtr & 4)
- flag |= TIOCM_CD;
- return put_user(flag, (unsigned int *) arg);
- case TIOCMBIS:
- if(get_user(retval, (unsigned int *) arg))
- return -EFAULT;
- MoxaPortGetLineOut(ch->port, &dtr, &rts);
- if (retval & TIOCM_RTS)
- rts = 1;
- if (retval & TIOCM_DTR)
- dtr = 1;
- MoxaPortLineCtrl(ch->port, dtr, rts);
- return (0);
- case TIOCMBIC:
- if(get_user(retval, (unsigned int *) arg))
- return -EFAULT;
- MoxaPortGetLineOut(ch->port, &dtr, &rts);
- if (retval & TIOCM_RTS)
- rts = 0;
- if (retval & TIOCM_DTR)
- dtr = 0;
- MoxaPortLineCtrl(ch->port, dtr, rts);
- return (0);
- case TIOCMSET:
- if(get_user(retval, (unsigned long *) arg))
- return -EFAULT;
- dtr = rts = 0;
- if (retval & TIOCM_RTS)
- rts = 1;
- if (retval & TIOCM_DTR)
- dtr = 1;
- MoxaPortLineCtrl(ch->port, dtr, rts);
- return (0);
- case TIOCGSERIAL:
- return (moxa_get_serial_info(ch, (struct serial_struct *) arg));
- case TIOCSSERIAL:
- return (moxa_set_serial_info(ch, (struct serial_struct *) arg));
- default:
- retval = MoxaDriverIoctl(cmd, arg, port);
- }
- return (retval);
- }
- static void moxa_throttle(struct tty_struct *tty)
- {
- struct moxa_str *ch = (struct moxa_str *) tty->driver_data;
- ch->statusflags |= THROTTLE;
- }
- static void moxa_unthrottle(struct tty_struct *tty)
- {
- struct moxa_str *ch = (struct moxa_str *) tty->driver_data;
- ch->statusflags &= ~THROTTLE;
- }
- static void moxa_set_termios(struct tty_struct *tty,
- struct termios *old_termios)
- {
- struct moxa_str *ch = (struct moxa_str *) tty->driver_data;
- if (ch == NULL)
- return;
- set_tty_param(tty);
- if (!(old_termios->c_cflag & CLOCAL) &&
- (tty->termios->c_cflag & CLOCAL))
- wake_up_interruptible(&ch->open_wait);
- }
- static void moxa_stop(struct tty_struct *tty)
- {
- struct moxa_str *ch = (struct moxa_str *) tty->driver_data;
- if (ch == NULL)
- return;
- MoxaPortTxDisable(ch->port);
- ch->statusflags |= TXSTOPPED;
- }
- static void moxa_start(struct tty_struct *tty)
- {
- struct moxa_str *ch = (struct moxa_str *) tty->driver_data;
- if (ch == NULL)
- return;
- if (!(ch->statusflags & TXSTOPPED))
- return;
- MoxaPortTxEnable(ch->port);
- ch->statusflags &= ~TXSTOPPED;
- }
- static void moxa_hangup(struct tty_struct *tty)
- {
- struct moxa_str *ch = (struct moxa_str *) tty->driver_data;
- moxa_flush_buffer(tty);
- shut_down(ch);
- ch->event = 0;
- ch->count = 0;
- ch->asyncflags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CALLOUT_ACTIVE);
- ch->tty = 0;
- wake_up_interruptible(&ch->open_wait);
- }
- static void moxa_poll(unsigned long ignored)
- {
- register int card;
- struct moxa_str *ch;
- struct tty_struct *tp;
- int i, ports;
- moxaTimer_on = 0;
- del_timer(&moxaTimer);
- if (MoxaDriverPoll() < 0) {
- moxaTimer.function = moxa_poll;
- moxaTimer.expires = jiffies + (HZ / 50);
- moxaTimer_on = 1;
- add_timer(&moxaTimer);
- return;
- }
- for (card = 0; card < MAX_BOARDS; card++) {
- if ((ports = MoxaPortsOfCard(card)) <= 0)
- continue;
- ch = &moxaChannels[card * MAX_PORTS_PER_BOARD];
- for (i = 0; i < ports; i++, ch++) {
- if ((ch->asyncflags & ASYNC_INITIALIZED) == 0)
- continue;
- if (!(ch->statusflags & THROTTLE) &&
- (MoxaPortRxQueue(ch->port) > 0))
- receive_data(ch);
- if ((tp = ch->tty) == 0)
- continue;
- if (ch->statusflags & LOWWAIT) {
- if (MoxaPortTxQueue(ch->port) <= WAKEUP_CHARS) {
- if (!tp->stopped) {
- ch->statusflags &= ~LOWWAIT;
- if ((tp->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
- tp->ldisc.write_wakeup)
- (tp->ldisc.write_wakeup) (tp);
- wake_up_interruptible(&tp->write_wait);
- }
- }
- }
- if (!I_IGNBRK(tp) && (MoxaPortResetBrkCnt(ch->port) > 0)) {
- tty_insert_flip_char(tp, 0, TTY_BREAK);
- tty_schedule_flip(tp);
- }
- if (MoxaPortDCDChange(ch->port)) {
- if (ch->asyncflags & ASYNC_CHECK_CD) {
- if (MoxaPortDCDON(ch->port))
- wake_up_interruptible(&ch->open_wait);
- else {
- set_bit(MOXA_EVENT_HANGUP, &ch->event);
- MOD_DEC_USE_COUNT;
- if (schedule_task(&ch->tqueue) == 0)
- MOD_INC_USE_COUNT;
- }
- }
- }
- }
- }
- moxaTimer.function = moxa_poll;
- moxaTimer.expires = jiffies + (HZ / 50);
- moxaTimer_on = 1;
- add_timer(&moxaTimer);
- }
- /******************************************************************************/
- static void set_tty_param(struct tty_struct *tty)
- {
- register struct termios *ts;
- struct moxa_str *ch;
- int rts, cts, txflow, rxflow, xany;
- ch = (struct moxa_str *) tty->driver_data;
- ts = tty->termios;
- if (ts->c_cflag & CLOCAL)
- ch->asyncflags &= ~ASYNC_CHECK_CD;
- else
- ch->asyncflags |= ASYNC_CHECK_CD;
- rts = cts = txflow = rxflow = xany = 0;
- if (ts->c_cflag & CRTSCTS)
- rts = cts = 1;
- if (ts->c_iflag & IXON)
- txflow = 1;
- if (ts->c_iflag & IXOFF)
- rxflow = 1;
- if (ts->c_iflag & IXANY)
- xany = 1;
- MoxaPortFlowCtrl(ch->port, rts, cts, txflow, rxflow, xany);
- MoxaPortSetTermio(ch->port, ts);
- }
- static int block_till_ready(struct tty_struct *tty, struct file *filp,
- struct moxa_str *ch)
- {
- DECLARE_WAITQUEUE(wait,current);
- unsigned long flags;
- int retval;
- int do_clocal = C_CLOCAL(tty);
- /*
- * If the device is in the middle of being closed, then block
- * until it's done, and then try again.
- */
- if (tty_hung_up_p(filp) || (ch->asyncflags & ASYNC_CLOSING)) {
- if (ch->asyncflags & ASYNC_CLOSING)
- interruptible_sleep_on(&ch->close_wait);
- #ifdef SERIAL_DO_RESTART
- if (ch->asyncflags & ASYNC_HUP_NOTIFY)
- return (-EAGAIN);
- else
- return (-ERESTARTSYS);
- #else
- return (-EAGAIN);
- #endif
- }
- /*
- * If this is a callout device, then just make sure the normal
- * device isn't being used.
- */
- if (tty->driver.subtype == SERIAL_TYPE_CALLOUT) {
- if (ch->asyncflags & ASYNC_NORMAL_ACTIVE)
- return (-EBUSY);
- if ((ch->asyncflags & ASYNC_CALLOUT_ACTIVE) &&
- (ch->asyncflags & ASYNC_SESSION_LOCKOUT) &&
- (ch->session != current->session))
- return (-EBUSY);
- if ((ch->asyncflags & ASYNC_CALLOUT_ACTIVE) &&
- (ch->asyncflags & ASYNC_PGRP_LOCKOUT) &&
- (ch->pgrp != current->pgrp))
- return (-EBUSY);
- ch->asyncflags |= ASYNC_CALLOUT_ACTIVE;
- return (0);
- }
- /*
- * If non-blocking mode is set, then make the check up front
- * and then exit.
- */
- if (filp->f_flags & O_NONBLOCK) {
- if (ch->asyncflags & ASYNC_CALLOUT_ACTIVE)
- return (-EBUSY);
- ch->asyncflags |= ASYNC_NORMAL_ACTIVE;
- return (0);
- }
- /*
- * Block waiting for the carrier detect and the line to become free
- */
- retval = 0;
- add_wait_queue(&ch->open_wait, &wait);
- #ifdef SERIAL_DEBUG_OPEN
- printk("block_til_ready before block: ttys%d, count = %dn",
- ch->line, ch->count);
- #endif
- save_flags(flags);
- cli();
- if (!tty_hung_up_p(filp))
- ch->count--;
- restore_flags(flags);
- ch->blocked_open++;
- while (1) {
- set_current_state(TASK_INTERRUPTIBLE);
- if (tty_hung_up_p(filp) ||
- !(ch->asyncflags & ASYNC_INITIALIZED)) {
- #ifdef SERIAL_DO_RESTART
- if (ch->asyncflags & ASYNC_HUP_NOTIFY)
- retval = -EAGAIN;
- else
- retval = -ERESTARTSYS;
- #else
- retval = -EAGAIN;
- #endif
- break;
- }
- if (!(ch->asyncflags & ASYNC_CALLOUT_ACTIVE) &&
- !(ch->asyncflags & ASYNC_CLOSING) && (do_clocal ||
- MoxaPortDCDON(ch->port)))
- break;
- if (signal_pending(current)) {
- retval = -ERESTARTSYS;
- break;
- }
- schedule();
- }
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&ch->open_wait, &wait);
- if (!tty_hung_up_p(filp))
- ch->count++;
- ch->blocked_open--;
- #ifdef SERIAL_DEBUG_OPEN
- printk("block_til_ready after blocking: ttys%d, count = %dn",
- ch->line, ch->count);
- #endif
- if (retval)
- return (retval);
- ch->asyncflags |= ASYNC_NORMAL_ACTIVE;
- return (0);
- }
- static void setup_empty_event(struct tty_struct *tty)
- {
- struct moxa_str *ch = tty->driver_data;
- unsigned long flags;
- save_flags(flags);
- cli();
- ch->statusflags |= EMPTYWAIT;
- moxaEmptyTimer_on[ch->port] = 0;
- del_timer(&moxaEmptyTimer[ch->port]);
- moxaEmptyTimer[ch->port].expires = jiffies + HZ;
- moxaEmptyTimer_on[ch->port] = 1;
- add_timer(&moxaEmptyTimer[ch->port]);
- restore_flags(flags);
- }
- static void check_xmit_empty(unsigned long data)
- {
- struct moxa_str *ch;
- ch = (struct moxa_str *) data;
- moxaEmptyTimer_on[ch->port] = 0;
- del_timer(&moxaEmptyTimer[ch->port]);
- if (ch->tty && (ch->statusflags & EMPTYWAIT)) {
- if (MoxaPortTxQueue(ch->port) == 0) {
- ch->statusflags &= ~EMPTYWAIT;
- if ((ch->tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
- ch->tty->ldisc.write_wakeup)
- (ch->tty->ldisc.write_wakeup) (ch->tty);
- wake_up_interruptible(&ch->tty->write_wait);
- return;
- }
- moxaEmptyTimer[ch->port].expires = jiffies + HZ;
- moxaEmptyTimer_on[ch->port] = 1;
- add_timer(&moxaEmptyTimer[ch->port]);
- } else
- ch->statusflags &= ~EMPTYWAIT;
- }
- static void shut_down(struct moxa_str *ch)
- {
- struct tty_struct *tp;
- if (!(ch->asyncflags & ASYNC_INITIALIZED))
- return;
- tp = ch->tty;
- MoxaPortDisable(ch->port);
- /*
- * If we're a modem control device and HUPCL is on, drop RTS & DTR.
- */
- if (tp->termios->c_cflag & HUPCL)
- MoxaPortLineCtrl(ch->port, 0, 0);
- ch->asyncflags &= ~ASYNC_INITIALIZED;
- }
- static void receive_data(struct moxa_str *ch)
- {
- struct tty_struct *tp;
- struct termios *ts;
- int i, count, rc, space;
- unsigned char *charptr, *flagptr;
- unsigned long flags;
- ts = 0;
- tp = ch->tty;
- if (tp)
- ts = tp->termios;
- /**************************************************
- if ( !tp || !ts || !(ts->c_cflag & CREAD) ) {
- *****************************************************/
- if (!tp || !ts) {
- MoxaPortFlushData(ch->port, 0);
- return;
- }
- space = TTY_FLIPBUF_SIZE - tp->flip.count;
- if (space <= 0)
- return;
- charptr = tp->flip.char_buf_ptr;
- flagptr = tp->flip.flag_buf_ptr;
- rc = tp->flip.count;
- save_flags(flags);
- cli();
- count = MoxaPortReadData(ch->port, charptr, space);
- restore_flags(flags);
- for (i = 0; i < count; i++)
- *flagptr++ = 0;
- charptr += count;
- rc += count;
- tp->flip.count = rc;
- tp->flip.char_buf_ptr = charptr;
- tp->flip.flag_buf_ptr = flagptr;
- tty_schedule_flip(ch->tty);
- }
- #define Magic_code 0x404
- /*
- * System Configuration
- */
- /*
- * for C218 BIOS initialization
- */
- #define C218_ConfBase 0x800
- #define C218_status (C218_ConfBase + 0) /* BIOS running status */
- #define C218_diag (C218_ConfBase + 2) /* diagnostic status */
- #define C218_key (C218_ConfBase + 4) /* WORD (0x218 for C218) */
- #define C218DLoad_len (C218_ConfBase + 6) /* WORD */
- #define C218check_sum (C218_ConfBase + 8) /* BYTE */
- #define C218chksum_ok (C218_ConfBase + 0x0a) /* BYTE (1:ok) */
- #define C218_TestRx (C218_ConfBase + 0x10) /* 8 bytes for 8 ports */
- #define C218_TestTx (C218_ConfBase + 0x18) /* 8 bytes for 8 ports */
- #define C218_RXerr (C218_ConfBase + 0x20) /* 8 bytes for 8 ports */
- #define C218_ErrFlag (C218_ConfBase + 0x28) /* 8 bytes for 8 ports */
- #define C218_LoadBuf 0x0F00
- #define C218_KeyCode 0x218
- #define CP204J_KeyCode 0x204
- /*
- * for C320 BIOS initialization
- */
- #define C320_ConfBase 0x800
- #define C320_LoadBuf 0x0f00
- #define STS_init 0x05 /* for C320_status */
- #define C320_status C320_ConfBase + 0 /* BIOS running status */
- #define C320_diag C320_ConfBase + 2 /* diagnostic status */
- #define C320_key C320_ConfBase + 4 /* WORD (0320H for C320) */
- #define C320DLoad_len C320_ConfBase + 6 /* WORD */
- #define C320check_sum C320_ConfBase + 8 /* WORD */
- #define C320chksum_ok C320_ConfBase + 0x0a /* WORD (1:ok) */
- #define C320bapi_len C320_ConfBase + 0x0c /* WORD */
- #define C320UART_no C320_ConfBase + 0x0e /* WORD */
- #define C320_KeyCode 0x320
- #define FixPage_addr 0x0000 /* starting addr of static page */
- #define DynPage_addr 0x2000 /* starting addr of dynamic page */
- #define C218_start 0x3000 /* starting addr of C218 BIOS prg */
- #define Control_reg 0x1ff0 /* select page and reset control */
- #define HW_reset 0x80
- /*
- * Function Codes
- */
- #define FC_CardReset 0x80
- #define FC_ChannelReset 1 /* C320 firmware not supported */
- #define FC_EnableCH 2
- #define FC_DisableCH 3
- #define FC_SetParam 4
- #define FC_SetMode 5
- #define FC_SetRate 6
- #define FC_LineControl 7
- #define FC_LineStatus 8
- #define FC_XmitControl 9
- #define FC_FlushQueue 10
- #define FC_SendBreak 11
- #define FC_StopBreak 12
- #define FC_LoopbackON 13
- #define FC_LoopbackOFF 14
- #define FC_ClrIrqTable 15
- #define FC_SendXon 16
- #define FC_SetTermIrq 17 /* C320 firmware not supported */
- #define FC_SetCntIrq 18 /* C320 firmware not supported */
- #define FC_SetBreakIrq 19
- #define FC_SetLineIrq 20
- #define FC_SetFlowCtl 21
- #define FC_GenIrq 22
- #define FC_InCD180 23
- #define FC_OutCD180 24
- #define FC_InUARTreg 23
- #define FC_OutUARTreg 24
- #define FC_SetXonXoff 25
- #define FC_OutCD180CCR 26
- #define FC_ExtIQueue 27
- #define FC_ExtOQueue 28
- #define FC_ClrLineIrq 29
- #define FC_HWFlowCtl 30
- #define FC_GetClockRate 35
- #define FC_SetBaud 36
- #define FC_SetDataMode 41
- #define FC_GetCCSR 43
- #define FC_GetDataError 45
- #define FC_RxControl 50
- #define FC_ImmSend 51
- #define FC_SetXonState 52
- #define FC_SetXoffState 53
- #define FC_SetRxFIFOTrig 54
- #define FC_SetTxFIFOCnt 55
- #define FC_UnixRate 56
- #define FC_UnixResetTimer 57
- #define RxFIFOTrig1 0
- #define RxFIFOTrig4 1
- #define RxFIFOTrig8 2
- #define RxFIFOTrig14 3
- /*
- * Dual-Ported RAM
- */
- #define DRAM_global 0
- #define INT_data (DRAM_global + 0)
- #define Config_base (DRAM_global + 0x108)
- #define IRQindex (INT_data + 0)
- #define IRQpending (INT_data + 4)
- #define IRQtable (INT_data + 8)
- /*
- * Interrupt Status
- */
- #define IntrRx 0x01 /* receiver data O.K. */
- #define IntrTx 0x02 /* transmit buffer empty */
- #define IntrFunc 0x04 /* function complete */
- #define IntrBreak 0x08 /* received break */
- #define IntrLine 0x10 /* line status change
- for transmitter */
- #define IntrIntr 0x20 /* received INTR code */
- #define IntrQuit 0x40 /* received QUIT code */
- #define IntrEOF 0x80 /* received EOF code */
- #define IntrRxTrigger 0x100 /* rx data count reach tigger value */
- #define IntrTxTrigger 0x200 /* tx data count below trigger value */
- #define Magic_no (Config_base + 0)
- #define Card_model_no (Config_base + 2)
- #define Total_ports (Config_base + 4)
- #define Module_cnt (Config_base + 8)
- #define Module_no (Config_base + 10)
- #define Timer_10ms (Config_base + 14)
- #define Disable_IRQ (Config_base + 20)
- #define TMS320_PORT1 (Config_base + 22)
- #define TMS320_PORT2 (Config_base + 24)
- #define TMS320_CLOCK (Config_base + 26)
- /*
- * DATA BUFFER in DRAM
- */
- #define Extern_table 0x400 /* Base address of the external table
- (24 words * 64) total 3K bytes
- (24 words * 128) total 6K bytes */
- #define Extern_size 0x60 /* 96 bytes */
- #define RXrptr 0x00 /* read pointer for RX buffer */
- #define RXwptr 0x02 /* write pointer for RX buffer */
- #define TXrptr 0x04 /* read pointer for TX buffer */
- #define TXwptr 0x06 /* write pointer for TX buffer */
- #define HostStat 0x08 /* IRQ flag and general flag */
- #define FlagStat 0x0A
- #define FlowControl 0x0C /* B7 B6 B5 B4 B3 B2 B1 B0 */
- /* x x x x | | | | */
- /* | | | + CTS flow */
- /* | | +--- RTS flow */
- /* | +------ TX Xon/Xoff */
- /* +--------- RX Xon/Xoff */
- #define Break_cnt 0x0E /* received break count */
- #define CD180TXirq 0x10 /* if non-0: enable TX irq */
- #define RX_mask 0x12
- #define TX_mask 0x14
- #define Ofs_rxb 0x16
- #define Ofs_txb 0x18
- #define Page_rxb 0x1A
- #define Page_txb 0x1C
- #define EndPage_rxb 0x1E
- #define EndPage_txb 0x20
- #define Data_error 0x22
- #define RxTrigger 0x28
- #define TxTrigger 0x2a
- #define rRXwptr 0x34
- #define Low_water 0x36
- #define FuncCode 0x40
- #define FuncArg 0x42
- #define FuncArg1 0x44
- #define C218rx_size 0x2000 /* 8K bytes */
- #define C218tx_size 0x8000 /* 32K bytes */
- #define C218rx_mask (C218rx_size - 1)
- #define C218tx_mask (C218tx_size - 1)
- #define C320p8rx_size 0x2000
- #define C320p8tx_size 0x8000
- #define C320p8rx_mask (C320p8rx_size - 1)
- #define C320p8tx_mask (C320p8tx_size - 1)
- #define C320p16rx_size 0x2000
- #define C320p16tx_size 0x4000
- #define C320p16rx_mask (C320p16rx_size - 1)
- #define C320p16tx_mask (C320p16tx_size - 1)
- #define C320p24rx_size 0x2000
- #define C320p24tx_size 0x2000
- #define C320p24rx_mask (C320p24rx_size - 1)
- #define C320p24tx_mask (C320p24tx_size - 1)
- #define C320p32rx_size 0x1000
- #define C320p32tx_size 0x1000
- #define C320p32rx_mask (C320p32rx_size - 1)
- #define C320p32tx_mask (C320p32tx_size - 1)
- #define Page_size 0x2000
- #define Page_mask (Page_size - 1)
- #define C218rx_spage 3
- #define C218tx_spage 4
- #define C218rx_pageno 1
- #define C218tx_pageno 4
- #define C218buf_pageno 5
- #define C320p8rx_spage 3
- #define C320p8tx_spage 4
- #define C320p8rx_pgno 1
- #define C320p8tx_pgno 4
- #define C320p8buf_pgno 5
- #define C320p16rx_spage 3
- #define C320p16tx_spage 4
- #define C320p16rx_pgno 1
- #define C320p16tx_pgno 2
- #define C320p16buf_pgno 3
- #define C320p24rx_spage 3
- #define C320p24tx_spage 4
- #define C320p24rx_pgno 1
- #define C320p24tx_pgno 1
- #define C320p24buf_pgno 2
- #define C320p32rx_spage 3
- #define C320p32tx_ofs C320p32rx_size
- #define C320p32tx_spage 3
- #define C320p32buf_pgno 1
- /*
- * Host Status
- */
- #define WakeupRx 0x01
- #define WakeupTx 0x02
- #define WakeupBreak 0x08
- #define WakeupLine 0x10
- #define WakeupIntr 0x20
- #define WakeupQuit 0x40
- #define WakeupEOF 0x80 /* used in VTIME control */
- #define WakeupRxTrigger 0x100
- #define WakeupTxTrigger 0x200
- /*
- * Flag status
- */
- #define Rx_over 0x01
- #define Xoff_state 0x02
- #define Tx_flowOff 0x04
- #define Tx_enable 0x08
- #define CTS_state 0x10
- #define DSR_state 0x20
- #define DCD_state 0x80
- /*
- * FlowControl
- */
- #define CTS_FlowCtl 1
- #define RTS_FlowCtl 2
- #define Tx_FlowCtl 4
- #define Rx_FlowCtl 8
- #define IXM_IXANY 0x10
- #define LowWater 128
- #define DTR_ON 1
- #define RTS_ON 2
- #define CTS_ON 1
- #define DSR_ON 2
- #define DCD_ON 8
- /* mode definition */
- #define MX_CS8 0x03
- #define MX_CS7 0x02
- #define MX_CS6 0x01
- #define MX_CS5 0x00
- #define MX_STOP1 0x00
- #define MX_STOP15 0x04
- #define MX_STOP2 0x08
- #define MX_PARNONE 0x00
- #define MX_PAREVEN 0x40
- #define MX_PARODD 0xC0
- /*
- * Query
- */
- #define QueryPort MAX_PORTS
- struct mon_str {
- int tick;
- int rxcnt[MAX_PORTS];
- int txcnt[MAX_PORTS];
- };
- typedef struct mon_str mon_st;
- #define DCD_changed 0x01
- #define DCD_oldstate 0x80
- static unsigned char moxaBuff[10240];
- static unsigned long moxaIntNdx[MAX_BOARDS];
- static unsigned long moxaIntPend[MAX_BOARDS];
- static unsigned long moxaIntTable[MAX_BOARDS];
- static char moxaChkPort[MAX_PORTS];
- static char moxaLineCtrl[MAX_PORTS];
- static unsigned long moxaTableAddr[MAX_PORTS];
- static long moxaCurBaud[MAX_PORTS];
- static char moxaDCDState[MAX_PORTS];
- static char moxaLowChkFlag[MAX_PORTS];
- static int moxaLowWaterChk;
- static int moxaCard;
- static mon_st moxaLog;
- static int moxaFuncTout;
- static ushort moxaBreakCnt[MAX_PORTS];
- static void moxadelay(int);
- static void moxafunc(unsigned long, int, ushort);
- static void wait_finish(unsigned long);
- static void low_water_check(unsigned long);
- static int moxaloadbios(int, unsigned char *, int);
- static int moxafindcard(int);
- static int moxaload320b(int, unsigned char *, int);
- static int moxaloadcode(int, unsigned char *, int);
- static int moxaloadc218(int, unsigned long, int);
- static int moxaloadc320(int, unsigned long, int, int *);
- /*****************************************************************************
- * Driver level functions: *
- * 1. MoxaDriverInit(void); *
- * 2. MoxaDriverIoctl(unsigned int cmd, unsigned long arg, int port); *
- * 3. MoxaDriverPoll(void); *
- *****************************************************************************/
- void MoxaDriverInit(void)
- {
- int i;
- moxaFuncTout = HZ / 2; /* 500 mini-seconds */
- moxaCard = 0;
- moxaLog.tick = 0;
- moxaLowWaterChk = 0;
- for (i = 0; i < MAX_PORTS; i++) {
- moxaChkPort[i] = 0;
- moxaLowChkFlag[i] = 0;
- moxaLineCtrl[i] = 0;
- moxaLog.rxcnt[i] = 0;
- moxaLog.txcnt[i] = 0;
- }
- }
- #define MOXA 0x400
- #define MOXA_GET_IQUEUE (MOXA + 1) /* get input buffered count */
- #define MOXA_GET_OQUEUE (MOXA + 2) /* get output buffered count */
- #define MOXA_INIT_DRIVER (MOXA + 6) /* moxaCard=0 */
- #define MOXA_LOAD_BIOS (MOXA + 9) /* download BIOS */
- #define MOXA_FIND_BOARD (MOXA + 10) /* Check if MOXA card exist? */
- #define MOXA_LOAD_C320B (MOXA + 11) /* download 320B firmware */
- #define MOXA_LOAD_CODE (MOXA + 12) /* download firmware */
- #define MOXA_GETDATACOUNT (MOXA + 23)
- #define MOXA_GET_IOQUEUE (MOXA + 27)
- #define MOXA_FLUSH_QUEUE (MOXA + 28)
- #define MOXA_GET_CONF (MOXA + 35) /* configuration */
- #define MOXA_GET_MAJOR (MOXA + 63)
- #define MOXA_GET_CUMAJOR (MOXA + 64)
- #define MOXA_GETMSTATUS (MOXA + 65)
- struct moxaq_str {
- int inq;
- int outq;
- };
- struct dl_str {
- char *buf;
- int len;
- int cardno;
- };
- static struct moxaq_str temp_queue[MAX_PORTS];
- static struct dl_str dltmp;
- void MoxaPortFlushData(int port, int mode)
- {
- unsigned long ofsAddr;
- if ((mode < 0) || (mode > 2))
- return;
- ofsAddr = moxaTableAddr[port];
- moxafunc(ofsAddr, FC_FlushQueue, mode);
- if (mode != 1) {
- moxaLowChkFlag[port] = 0;
- low_water_check(ofsAddr);
- }
- }
- int MoxaDriverIoctl(unsigned int cmd, unsigned long arg, int port)
- {
- int i;
- int status;
- int MoxaPortTxQueue(int), MoxaPortRxQueue(int);
- if (port == QueryPort) {
- if ((cmd != MOXA_GET_CONF) && (cmd != MOXA_INIT_DRIVER) &&
- (cmd != MOXA_LOAD_BIOS) && (cmd != MOXA_FIND_BOARD) && (cmd != MOXA_LOAD_C320B) &&
- (cmd != MOXA_LOAD_CODE) && (cmd != MOXA_GETDATACOUNT) &&
- (cmd != MOXA_GET_IOQUEUE) && (cmd != MOXA_GET_MAJOR) &&
- (cmd != MOXA_GET_CUMAJOR) && (cmd != MOXA_GETMSTATUS))
- return (-EINVAL);
- }
- switch (cmd) {
- case MOXA_GET_CONF:
- if(copy_to_user((void *)arg, &moxa_boards, MAX_BOARDS * sizeof(moxa_board_conf)))
- return -EFAULT;
- return (0);
- case MOXA_INIT_DRIVER:
- if ((int) arg == 0x404)
- MoxaDriverInit();
- return (0);
- case MOXA_GETDATACOUNT:
- moxaLog.tick = jiffies;
- if(copy_to_user((void *)arg, &moxaLog, sizeof(mon_st)))
- return -EFAULT;
- return (0);
- case MOXA_FLUSH_QUEUE:
- MoxaPortFlushData(port, arg);
- return (0);
- case MOXA_GET_IOQUEUE:
- for (i = 0; i < MAX_PORTS; i++) {
- if (moxaChkPort[i]) {
- temp_queue[i].inq = MoxaPortRxQueue(i);
- temp_queue[i].outq = MoxaPortTxQueue(i);
- }
- }
- if(copy_to_user((void *)arg, temp_queue, sizeof(struct moxaq_str) * MAX_PORTS))
- return -EFAULT;
- return (0);
- case MOXA_GET_OQUEUE:
- i = MoxaPortTxQueue(port);
- return put_user(i, (unsigned long *) arg);
- case MOXA_GET_IQUEUE:
- i = MoxaPortRxQueue(port);
- return put_user(i, (unsigned long *) arg);
- case MOXA_GET_MAJOR:
- if(copy_to_user((void *)arg, &ttymajor, sizeof(int)))
- return -EFAULT;
- return 0;
- case MOXA_GET_CUMAJOR:
- if(copy_to_user((void *)arg, &calloutmajor, sizeof(int)))
- return -EFAULT;
- return 0;
- case MOXA_GETMSTATUS:
- for (i = 0; i < MAX_PORTS; i++) {
- GMStatus[i].ri = 0;
- GMStatus[i].dcd = 0;
- GMStatus[i].dsr = 0;
- GMStatus[i].cts = 0;
- if (!moxaChkPort[i]) {
- continue;
- } else {
- status = MoxaPortLineStatus(moxaChannels[i].port);
- if (status & 1)
- GMStatus[i].cts = 1;
- if (status & 2)
- GMStatus[i].dsr = 1;
- if (status & 4)
- GMStatus[i].dcd = 1;
- }
- if (!moxaChannels[i].tty || !moxaChannels[i].tty->termios)
- GMStatus[i].cflag = moxaChannels[i].normal_termios.c_cflag;
- else
- GMStatus[i].cflag = moxaChannels[i].tty->termios->c_cflag;
- }
- if(copy_to_user((void *)arg, GMStatus, sizeof(struct mxser_mstatus) * MAX_PORTS))
- return -EFAULT;
- return 0;
- default:
- return (-ENOIOCTLCMD);
- case MOXA_LOAD_BIOS:
- case MOXA_FIND_BOARD:
- case MOXA_LOAD_C320B:
- case MOXA_LOAD_CODE:
- break;
- }
- if(copy_from_user(&dltmp, (void *)arg, sizeof(struct dl_str)))
- return -EFAULT;
- if(dltmp.cardno < 0 || dltmp.cardno >= MAX_BOARDS)
- return -EINVAL;
- switch(cmd)
- {
- case MOXA_LOAD_BIOS:
- i = moxaloadbios(dltmp.cardno, dltmp.buf, dltmp.len);
- return (i);
- case MOXA_FIND_BOARD:
- return moxafindcard(dltmp.cardno);
- case MOXA_LOAD_C320B:
- moxaload320b(dltmp.cardno, dltmp.buf, dltmp.len);
- default: /* to keep gcc happy */
- return (0);
- case MOXA_LOAD_CODE:
- i = moxaloadcode(dltmp.cardno, dltmp.buf, dltmp.len);
- if (i == -1)
- return (-EFAULT);
- return (i);
- }
- }
- int MoxaDriverPoll(void)
- {
- register ushort temp;
- register int card;
- unsigned long ip, ofsAddr;
- int port, p, ports;
- if (moxaCard == 0)
- return (-1);
- for (card = 0; card < MAX_BOARDS; card++) {
- if ((ports = moxa_boards[card].numPorts) == 0)
- continue;
- if (readb(moxaIntPend[card]) == 0xff) {
- ip = moxaIntTable[card] + readb(moxaIntNdx[card]);
- p = card * MAX_PORTS_PER_BOARD;
- ports <<= 1;
- for (port = 0; port < ports; port += 2, p++) {
- if ((temp = readw(ip + port)) != 0) {
- writew(0, ip + port);
- ofsAddr = moxaTableAddr[p];
- if (temp & IntrTx)
- writew(readw(ofsAddr + HostStat) & ~WakeupTx, ofsAddr + HostStat);
- if (temp & IntrBreak) {
- moxaBreakCnt[p]++;
- }
- if (temp & IntrLine) {
- if (readb(ofsAddr + FlagStat) & DCD_state) {
- if ((moxaDCDState[p] & DCD_oldstate) == 0)
- moxaDCDState[p] = (DCD_oldstate |
- DCD_changed);
- } else {
- if (moxaDCDState[p] & DCD_oldstate)
- moxaDCDState[p] = DCD_changed;
- }
- }
- }
- }
- writeb(0, moxaIntPend[card]);
- }
- if (moxaLowWaterChk) {
- p = card * MAX_PORTS_PER_BOARD;
- for (port = 0; port < ports; port++, p++) {
- if (moxaLowChkFlag[p]) {
- moxaLowChkFlag[p] = 0;
- ofsAddr = moxaTableAddr[p];
- low_water_check(ofsAddr);
- }
- }
- }
- }
- moxaLowWaterChk = 0;
- return (0);
- }
- /*****************************************************************************
- * Card level function: *
- * 1. MoxaPortsOfCard(int cardno); *
- *****************************************************************************/
- int MoxaPortsOfCard(int cardno)
- {
- if (moxa_boards[cardno].boardType == 0)
- return (0);
- return (moxa_boards[cardno].numPorts);
- }
- /*****************************************************************************
- * Port level functions: *
- * 1. MoxaPortIsValid(int port); *
- * 2. MoxaPortEnable(int port); *
- * 3. MoxaPortDisable(int port); *
- * 4. MoxaPortGetMaxBaud(int port); *
- * 5. MoxaPortGetCurBaud(int port); *
- * 6. MoxaPortSetBaud(int port, long baud); *
- * 7. MoxaPortSetMode(int port, int databit, int stopbit, int parity); *
- * 8. MoxaPortSetTermio(int port, unsigned char *termio); *
- * 9. MoxaPortGetLineOut(int port, int *dtrState, int *rtsState); *
- * 10. MoxaPortLineCtrl(int port, int dtrState, int rtsState); *
- * 11. MoxaPortFlowCtrl(int port, int rts, int cts, int rx, int tx,int xany); *
- * 12. MoxaPortLineStatus(int port); *
- * 13. MoxaPortDCDChange(int port); *
- * 14. MoxaPortDCDON(int port); *
- * 15. MoxaPortFlushData(int port, int mode); *
- * 16. MoxaPortWriteData(int port, unsigned char * buffer, int length); *
- * 17. MoxaPortReadData(int port, unsigned char * buffer, int length); *
- * 18. MoxaPortTxBufSize(int port); *
- * 19. MoxaPortRxBufSize(int port); *
- * 20. MoxaPortTxQueue(int port); *
- * 21. MoxaPortTxFree(int port); *
- * 22. MoxaPortRxQueue(int port); *
- * 23. MoxaPortRxFree(int port); *
- * 24. MoxaPortTxDisable(int port); *
- * 25. MoxaPortTxEnable(int port); *
- * 26. MoxaPortGetBrkCnt(int port); *
- * 27. MoxaPortResetBrkCnt(int port); *
- * 28. MoxaPortSetXonXoff(int port, int xonValue, int xoffValue); *
- * 29. MoxaPortIsTxHold(int port); *
- * 30. MoxaPortSendBreak(int port, int ticks); *
- *****************************************************************************/
- /*
- * Moxa Port Number Description:
- *
- * MOXA serial driver supports up to 4 MOXA-C218/C320 boards. And,
- * the port number using in MOXA driver functions will be 0 to 31 for
- * first MOXA board, 32 to 63 for second, 64 to 95 for third and 96
- * to 127 for fourth. For example, if you setup three MOXA boards,
- * first board is C218, second board is C320-16 and third board is
- * C320-32. The port number of first board (C218 - 8 ports) is from
- * 0 to 7. The port number of second board (C320 - 16 ports) is form
- * 32 to 47. The port number of third board (C320 - 32 ports) is from
- * 64 to 95. And those port numbers form 8 to 31, 48 to 63 and 96 to
- * 127 will be invalid.
- *
- *
- * Moxa Functions Description:
- *
- * Function 1: Driver initialization routine, this routine must be
- * called when initialized driver.
- * Syntax:
- * void MoxaDriverInit();
- *
- *
- * Function 2: Moxa driver private IOCTL command processing.
- * Syntax:
- * int MoxaDriverIoctl(unsigned int cmd, unsigned long arg, int port);
- *
- * unsigned int cmd : IOCTL command
- * unsigned long arg : IOCTL argument
- * int port : port number (0 - 127)
- *
- * return: 0 (OK)
- * -EINVAL
- * -ENOIOCTLCMD
- *
- *
- * Function 3: Moxa driver polling process routine.
- * Syntax:
- * int MoxaDriverPoll(void);
- *
- * return: 0 ; polling O.K.
- * -1 : no any Moxa card.
- *
- *
- * Function 4: Get the ports of this card.
- * Syntax:
- * int MoxaPortsOfCard(int cardno);
- *
- * int cardno : card number (0 - 3)
- *
- * return: 0 : this card is invalid
- * 8/16/24/32
- *
- *
- * Function 5: Check this port is valid or invalid
- * Syntax:
- * int MoxaPortIsValid(int port);
- * int port : port number (0 - 127, ref port description)
- *
- * return: 0 : this port is invalid
- * 1 : this port is valid
- *
- *
- * Function 6: Enable this port to start Tx/Rx data.
- * Syntax:
- * void MoxaPortEnable(int port);
- * int port : port number (0 - 127)
- *
- *
- * Function 7: Disable this port
- * Syntax:
- * void MoxaPortDisable(int port);
- * int port : port number (0 - 127)
- *
- *
- * Function 8: Get the maximun available baud rate of this port.
- * Syntax:
- * long MoxaPortGetMaxBaud(int port);
- * int port : port number (0 - 127)
- *
- * return: 0 : this port is invalid
- * 38400/57600/115200 bps
- *
- *
- * Function 9: Get the current baud rate of this port.
- * Syntax:
- * long MoxaPortGetCurBaud(int port);
- * int port : port number (0 - 127)
- *
- * return: 0 : this port is invalid
- * 50 - 115200 bps
- *
- *
- * Function 10: Setting baud rate of this port.
- * Syntax:
- * long MoxaPortSetBaud(int port, long baud);
- * int port : port number (0 - 127)
- * long baud : baud rate (50 - 115200)
- *
- * return: 0 : this port is invalid or baud < 50
- * 50 - 115200 : the real baud rate set to the port, if
- * the argument baud is large than maximun
- * available baud rate, the real setting
- * baud rate will be the maximun baud rate.
- *
- *
- * Function 11: Setting the data-bits/stop-bits/parity of this port
- * Syntax:
- * int MoxaPortSetMode(int port, int databits, int stopbits, int parity);
- * int port : port number (0 - 127)
- * int databits : data bits (8/7/6/5)
- * int stopbits : stop bits (2/1/0, 0 show 1.5 stop bits)
- int parity : parity (0:None,1:Odd,2:Even,3:Mark,4:Space)
- *
- * return: -1 : invalid parameter
- * 0 : setting O.K.
- *
- *
- * Function 12: Configure the port.
- * Syntax:
- * int MoxaPortSetTermio(int port, struct termios *termio);
- * int port : port number (0 - 127)
- * struct termios * termio : termio structure pointer
- *
- * return: -1 : this port is invalid or termio == NULL
- * 0 : setting O.K.
- *
- *
- * Function 13: Get the DTR/RTS state of this port.
- * Syntax:
- * int MoxaPortGetLineOut(int port, int *dtrState, int *rtsState);
- * int port : port number (0 - 127)
- * int * dtrState : pointer to INT to receive the current DTR
- * state. (if NULL, this function will not
- * write to this address)
- * int * rtsState : pointer to INT to receive the current RTS
- * state. (if NULL, this function will not
- * write to this address)
- *
- * return: -1 : this port is invalid
- * 0 : O.K.
- *
- *
- * Function 14: Setting the DTR/RTS output state of this port.
- * Syntax:
- * void MoxaPortLineCtrl(int port, int dtrState, int rtsState);
- * int port : port number (0 - 127)
- * int dtrState : DTR output state (0: off, 1: on)
- * int rtsState : RTS output state (0: off, 1: on)
- *
- *
- * Function 15: Setting the flow control of this port.
- * Syntax:
- * void MoxaPortFlowCtrl(int port, int rtsFlow, int ctsFlow, int rxFlow,
- * int txFlow,int xany);
- * int port : port number (0 - 127)
- * int rtsFlow : H/W RTS flow control (0: no, 1: yes)
- * int ctsFlow : H/W CTS flow control (0: no, 1: yes)
- * int rxFlow : S/W Rx XON/XOFF flow control (0: no, 1: yes)
- * int txFlow : S/W Tx XON/XOFF flow control (0: no, 1: yes)
- * int xany : S/W XANY flow control (0: no, 1: yes)
- *
- *
- * Function 16: Get ths line status of this port
- * Syntax:
- * int MoxaPortLineStatus(int port);
- * int port : port number (0 - 127)
- *
- * return: Bit 0 - CTS state (0: off, 1: on)
- * Bit 1 - DSR state (0: off, 1: on)
- * Bit 2 - DCD state (0: off, 1: on)
- *
- *
- * Function 17: Check the DCD state has changed since the last read
- * of this function.
- * Syntax:
- * int MoxaPortDCDChange(int port);
- * int port : port number (0 - 127)
- *
- * return: 0 : no changed
- * 1 : DCD has changed
- *
- *
- * Function 18: Check ths current DCD state is ON or not.
- * Syntax:
- * int MoxaPortDCDON(int port);
- * int port : port number (0 - 127)
- *
- * return: 0 : DCD off
- * 1 : DCD on
- *
- *
- * Function 19: Flush the Rx/Tx buffer data of this port.
- * Syntax:
- * void MoxaPortFlushData(int port, int mode);
- * int port : port number (0 - 127)
- * int mode
- * 0 : flush the Rx buffer
- * 1 : flush the Tx buffer
- * 2 : flush the Rx and Tx buffer
- *
- *
- * Function 20: Write data.
- * Syntax:
- * int MoxaPortWriteData(int port, unsigned char * buffer, int length);
- * int port : port number (0 - 127)
- * unsigned char * buffer : pointer to write data buffer.
- * int length : write data length
- *
- * return: 0 - length : real write data length
- *
- *
- * Function 21: Read data.
- * Syntax:
- * int MoxaPortReadData(int port, unsigned char * buffer, int length);
- * int port : port number (0 - 127)
- * unsigned char * buffer : pointer to read data buffer.
- * int length : read data buffer length
- *
- * return: 0 - length : real read data length
- *
- *
- * Function 22: Get the Tx buffer size of this port
- * Syntax:
- * int MoxaPortTxBufSize(int port);
- * int port : port number (0 - 127)
- *
- * return: .. : Tx buffer size
- *
- *
- * Function 23: Get the Rx buffer size of this port
- * Syntax:
- * int MoxaPortRxBufSize(int port);
- * int port : port number (0 - 127)
- *
- * return: .. : Rx buffer size
- *
- *
- * Function 24: Get the Tx buffer current queued data bytes
- * Syntax:
- * int MoxaPortTxQueue(int port);
- * int port : port number (0 - 127)
- *
- * return: .. : Tx buffer current queued data bytes
- *
- *
- * Function 25: Get the Tx buffer current free space
- * Syntax:
- * int MoxaPortTxFree(int port);
- * int port : port number (0 - 127)
- *
- * return: .. : Tx buffer current free space
- *
- *
- * Function 26: Get the Rx buffer current queued data bytes
- * Syntax:
- * int MoxaPortRxQueue(int port);
- * int port : port number (0 - 127)
- *
- * return: .. : Rx buffer current queued data bytes
- *
- *
- * Function 27: Get the Rx buffer current free space
- * Syntax:
- * int MoxaPortRxFree(int port);
- * int port : port number (0 - 127)
- *
- * return: .. : Rx buffer current free space
- *
- *
- * Function 28: Disable port data transmission.
- * Syntax:
- * void MoxaPortTxDisable(int port);
- * int port : port number (0 - 127)
- *
- *
- * Function 29: Enable port data transmission.
- * Syntax:
- * void MoxaPortTxEnable(int port);
- * int port : port number (0 - 127)
- *
- *
- * Function 30: Get the received BREAK signal count.
- * Syntax:
- * int MoxaPortGetBrkCnt(int port);
- * int port : port number (0 - 127)
- *
- * return: 0 - .. : BREAK signal count
- *
- *
- * Function 31: Get the received BREAK signal count and reset it.
- * Syntax:
- * int MoxaPortResetBrkCnt(int port);
- * int port : port number (0 - 127)
- *
- * return: 0 - .. : BREAK signal count
- *
- *
- * Function 32: Set the S/W flow control new XON/XOFF value, default
- * XON is 0x11 & XOFF is 0x13.
- * Syntax:
- * void MoxaPortSetXonXoff(int port, int xonValue, int xoffValue);
- * int port : port number (0 - 127)
- * int xonValue : new XON value (0 - 255)
- * int xoffValue : new XOFF value (0 - 255)
- *
- *
- * Function 33: Check this port's transmission is hold by remote site
- * because the flow control.
- * Syntax:
- * int MoxaPortIsTxHold(int port);
- * int port : port number (0 - 127)
- *
- * return: 0 : normal
- * 1 : hold by remote site
- *
- *
- * Function 34: Send out a BREAK signal.
- * Syntax:
- * void MoxaPortSendBreak(int port, int ms100);
- * int port : port number (0 - 127)
- * int ms100 : break signal time interval.
- * unit: 100 mini-second. if ms100 == 0, it will
- * send out a about 250 ms BREAK signal.
- *
- */
- int MoxaPortIsValid(int port)
- {
- if (moxaCard == 0)
- return (0);
- if (moxaChkPort[port] == 0)
- return (0);
- return (1);
- }
- void MoxaPortEnable(int port)
- {
- unsigned long ofsAddr;
- int MoxaPortLineStatus(int);
- short lowwater = 512;
- ofsAddr = moxaTableAddr[port];
- writew(lowwater, ofsAddr + Low_water);
- moxaBreakCnt[port] = 0;
- if ((moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_ISA) ||
- (moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_PCI)) {
- moxafunc(ofsAddr, FC_SetBreakIrq, 0);
- } else {
- writew(readw(ofsAddr + HostStat) | WakeupBreak, ofsAddr + HostStat);
- }
- moxafunc(ofsAddr, FC_SetLineIrq, Magic_code);
- moxafunc(ofsAddr, FC_FlushQueue, 2);
- moxafunc(ofsAddr, FC_EnableCH, Magic_code);
- MoxaPortLineStatus(port);
- }
- void MoxaPortDisable(int port)
- {
- unsigned long ofsAddr;
- ofsAddr = moxaTableAddr[port];
- moxafunc(ofsAddr, FC_SetFlowCtl, 0); /* disable flow control */
- moxafunc(ofsAddr, FC_ClrLineIrq, Magic_code);
- writew(0, ofsAddr + HostStat);
- moxafunc(ofsAddr, FC_DisableCH, Magic_code);
- }
- long MoxaPortGetMaxBaud(int port)
- {
- if ((moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_ISA) ||
- (moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_PCI))
- return (460800L);
- else
- return (921600L);
- }
- long MoxaPortSetBaud(int port, long baud)
- {
- unsigned long ofsAddr;
- long max, clock;
- unsigned int val;
- if ((baud < 50L) || ((max = MoxaPortGetMaxBaud(port)) == 0))
- return (0);
- ofsAddr = moxaTableAddr[port];
- if (baud > max)
- baud = max;
- if (max == 38400L)
- clock = 614400L; /* for 9.8304 Mhz : max. 38400 bps */
- else if (max == 57600L)
- clock = 691200L; /* for 11.0592 Mhz : max. 57600 bps */
- else
- clock = 921600L; /* for 14.7456 Mhz : max. 115200 bps */
- val = clock / baud;
- moxafunc(ofsAddr, FC_SetBaud, val);
- baud = clock / val;
- moxaCurBaud[port] = baud;
- return (baud);
- }
- int MoxaPortSetTermio(int port, struct termios *termio)
- {
- unsigned long ofsAddr;
- tcflag_t cflag;
- long baud;
- tcflag_t mode = 0;
- if (moxaChkPort[port] == 0 || termio == 0)
- return (-1);
- ofsAddr = moxaTableAddr[port];
- cflag = termio->c_cflag; /* termio->c_cflag */
- mode = termio->c_cflag & CSIZE;
- if (mode == CS5)
- mode = MX_CS5;
- else if (mode == CS6)
- mode = MX_CS6;
- else if (mode == CS7)
- mode = MX_CS7;
- else if (mode == CS8)
- mode = MX_CS8;
- if (termio->c_cflag & CSTOPB) {
- if (mode == MX_CS5)
- mode |= MX_STOP15;
- else
- mode |= MX_STOP2;
- } else
- mode |= MX_STOP1;
- if (termio->c_cflag & PARENB) {
- if (termio->c_cflag & PARODD)
- mode |= MX_PARODD;
- else
- mode |= MX_PAREVEN;
- } else
- mode |= MX_PARNONE;
- moxafunc(ofsAddr, FC_SetDataMode, (ushort) mode);
- cflag &= (CBAUD | CBAUDEX);
- #ifndef B921600
- #define B921600 (B460800+1)
- #endif
- switch (cflag) {
- case B921600:
- baud = 921600L;
- break;
- case B460800:
- baud = 460800L;
- break;
- case B230400:
- baud = 230400L;
- break;
- case B115200:
- baud = 115200L;
- break;
- case B57600:
- baud = 57600L;
- break;
- case B38400:
- baud = 38400L;
- break;
- case B19200:
- baud = 19200L;
- break;
- case B9600:
- baud = 9600L;
- break;
- case B4800:
- baud = 4800L;
- break;
- case B2400:
- baud = 2400L;
- break;
- case B1800:
- baud = 1800L;
- break;
- case B1200:
- baud = 1200L;
- break;
- case B600:
- baud = 600L;
- break;
- case B300:
- baud = 300L;
- break;
- case B200:
- baud = 200L;
- break;
- case B150:
- baud = 150L;
- break;
- case B134:
- baud = 134L;
- break;
- case B110:
- baud = 110L;
- break;
- case B75:
- baud = 75L;
- break;
- case B50:
- baud = 50L;
- break;
- default:
- baud = 0;
- }
- if ((moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_ISA) ||
- (moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_PCI)) {
- if (baud == 921600L)
- return (-1);
- }
- MoxaPortSetBaud(port, baud);
- if (termio->c_iflag & (IXON | IXOFF | IXANY)) {
- writeb(termio->c_cc[VSTART], ofsAddr + FuncArg);
- writeb(termio->c_cc[VSTOP], ofsAddr + FuncArg1);
- writeb(FC_SetXonXoff, ofsAddr + FuncCode);
- wait_finish(ofsAddr);
- }
- return (0);
- }
- int MoxaPortGetLineOut(int port, int *dtrState, int *rtsState)
- {
- if (!MoxaPortIsValid(port))
- return (-1);
- if (dtrState) {
- if (moxaLineCtrl[port] & DTR_ON)
- *dtrState = 1;
- else
- *dtrState = 0;
- }
- if (rtsState) {
- if (moxaLineCtrl[port] & RTS_ON)
- *rtsState = 1;
- else
- *rtsState = 0;
- }
- return (0);
- }
- void MoxaPortLineCtrl(int port, int dtr, int rts)
- {
- unsigned long ofsAddr;
- int mode;
- ofsAddr = moxaTableAddr[port];
- mode = 0;
- if (dtr)
- mode |= DTR_ON;
- if (rts)
- mode |= RTS_ON;
- moxaLineCtrl[port] = mode;
- moxafunc(ofsAddr, FC_LineControl, mode);
- }
- void MoxaPortFlowCtrl(int port, int rts, int cts, int txflow, int rxflow, int txany)
- {
- unsigned long ofsAddr;
- int mode;
- ofsAddr = moxaTableAddr[port];
- mode = 0;
- if (rts)
- mode |= RTS_FlowCtl;
- if (cts)
- mode |= CTS_FlowCtl;
- if (txflow)
- mode |= Tx_FlowCtl;
- if (rxflow)
- mode |= Rx_FlowCtl;
- if (txany)
- mode |= IXM_IXANY;
- moxafunc(ofsAddr, FC_SetFlowCtl, mode);
- }
- int MoxaPortLineStatus(int port)
- {
- unsigned long ofsAddr;
- int val;
- ofsAddr = moxaTableAddr[port];
- if ((moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_ISA) ||
- (moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_PCI)) {
- moxafunc(ofsAddr, FC_LineStatus, 0);
- val = readw(ofsAddr + FuncArg);
- } else {
- val = readw(ofsAddr + FlagStat) >> 4;
- }
- val &= 0x0B;
- if (val & 8) {
- val |= 4;
- if ((moxaDCDState[port] & DCD_oldstate) == 0)
- moxaDCDState[port] = (DCD_oldstate | DCD_changed);
- } else {
- if (moxaDCDState[port] & DCD_oldstate)
- moxaDCDState[port] = DCD_changed;
- }
- val &= 7;
- return (val);
- }
- int MoxaPortDCDChange(int port)
- {
- int n;
- if (moxaChkPort[port] == 0)
- return (0);
- n = moxaDCDState[port];
- moxaDCDState[port] &= ~DCD_changed;
- n &= DCD_changed;
- return (n);
- }
- int MoxaPortDCDON(int port)
- {
- int n;
- if (moxaChkPort[port] == 0)
- return (0);
- if (moxaDCDState[port] & DCD_oldstate)
- n = 1;
- else
- n = 0;
- return (n);
- }
- /*
- int MoxaDumpMem(int port, unsigned char * buffer, int len)
- {
- int i;
- unsigned long baseAddr,ofsAddr,ofs;
- baseAddr = moxaBaseAddr[port / MAX_PORTS_PER_BOARD];
- ofs = baseAddr + DynPage_addr + pageofs;
- if (len > 0x2000L)
- len = 0x2000L;
- for (i = 0; i < len; i++)
- buffer[i] = readb(ofs+i);
- }
- */
- int MoxaPortWriteData(int port, unsigned char * buffer, int len)
- {
- int c, total, i;
- ushort tail;
- int cnt;
- ushort head, tx_mask, spage, epage;
- ushort pageno, pageofs, bufhead;
- unsigned long baseAddr, ofsAddr, ofs;
- ofsAddr = moxaTableAddr[port];
- baseAddr = moxaBaseAddr[port / MAX_PORTS_PER_BOARD];
- tx_mask = readw(ofsAddr + TX_mask);
- spage = readw(ofsAddr + Page_txb);
- epage = readw(ofsAddr + EndPage_txb);
- tail = readw(ofsAddr + TXwptr);
- head = readw(ofsAddr + TXrptr);
- c = (head > tail) ? (head - tail - 1)
- : (head - tail + tx_mask);
- if (c > len)
- c = len;
- moxaLog.txcnt[port] += c;
- total = c;
- if (spage == epage) {
- bufhead = readw(ofsAddr + Ofs_txb);
- writew(spage, baseAddr + Control_reg);
- while (c > 0) {
- if (head > tail)
- len = head - tail - 1;
- else
- len = tx_mask + 1 - tail;
- len = (c > len) ? len : c;
- ofs = baseAddr + DynPage_addr + bufhead + tail;
- for (i = 0; i < len; i++)
- writeb(*buffer++, ofs + i);
- tail = (tail + len) & tx_mask;
- c -= len;
- }
- writew(tail, ofsAddr + TXwptr);
- } else {
- len = c;
- pageno = spage + (tail >> 13);
- pageofs = tail & Page_mask;
- do {
- cnt = Page_size - pageofs;
- if (cnt > c)
- cnt = c;
- c -= cnt;
- writeb(pageno, baseAddr + Control_reg);
- ofs = baseAddr + DynPage_addr + pageofs;
- for (i = 0; i < cnt; i++)
- writeb(*buffer++, ofs + i);
- if (c == 0) {
- writew((tail + len) & tx_mask, ofsAddr + TXwptr);
- break;
- }
- if (++pageno == epage)
- pageno = spage;
- pageofs = 0;
- } while (1);
- }
- writeb(1, ofsAddr + CD180TXirq); /* start to send */
- return (total);
- }
- int MoxaPortReadData(int port, unsigned char * buffer, int space)
- {
- register ushort head, pageofs;
- int i, count, cnt, len, total, remain;
- ushort tail, rx_mask, spage, epage;
- ushort pageno, bufhead;
- unsigned long baseAddr, ofsAddr, ofs;
- ofsAddr = moxaTableAddr[port];
- baseAddr = moxaBaseAddr[port / MAX_PORTS_PER_BOARD];
- head = readw(ofsAddr + RXrptr);
- tail = readw(ofsAddr + RXwptr);
- rx_mask = readw(ofsAddr + RX_mask);
- spage = readw(ofsAddr + Page_rxb);
- epage = readw(ofsAddr + EndPage_rxb);
- count = (tail >= head) ? (tail - head)
- : (tail - head + rx_mask + 1);
- if (count == 0)
- return (0);
- total = (space > count) ? count : space;
- remain = count - total;
- moxaLog.rxcnt[port] += total;
- count = total;
- if (spage == epage) {
- bufhead = readw(ofsAddr + Ofs_rxb);
- writew(spage, baseAddr + Control_reg);
- while (count > 0) {
- if (tail >= head)
- len = tail - head;
- else
- len = rx_mask + 1 - head;
- len = (count > len) ? len : count;
- ofs = baseAddr + DynPage_addr + bufhead + head;
- for (i = 0; i < len; i++)
- *buffer++ = readb(ofs + i);
- head = (head + len) & rx_mask;
- count -= len;
- }
- writew(head, ofsAddr + RXrptr);
- } else {
- len = count;
- pageno = spage + (head >> 13);
- pageofs = head & Page_mask;
- do {
- cnt = Page_size - pageofs;
- if (cnt > count)
- cnt = count;
- count -= cnt;
- writew(pageno, baseAddr + Control_reg);
- ofs = baseAddr + DynPage_addr + pageofs;
- for (i = 0; i < cnt; i++)
- *buffer++ = readb(ofs + i);
- if (count == 0) {
- writew((head + len) & rx_mask, ofsAddr + RXrptr);
- break;
- }
- if (++pageno == epage)
- pageno = spage;
- pageofs = 0;
- } while (1);
- }
- if ((readb(ofsAddr + FlagStat) & Xoff_state) && (remain < LowWater)) {
- moxaLowWaterChk = 1;
- moxaLowChkFlag[port] = 1;
- }
- return (total);
- }
- int MoxaPortTxQueue(int port)
- {
- unsigned long ofsAddr;
- ushort rptr, wptr, mask;
- int len;
- ofsAddr = moxaTableAddr[port];
- rptr = readw(ofsAddr + TXrptr);
- wptr = readw(ofsAddr + TXwptr);
- mask = readw(ofsAddr + TX_mask);
- len = (wptr - rptr) & mask;
- return (len);
- }
- int MoxaPortTxFree(int port)
- {
- unsigned long ofsAddr;
- ushort rptr, wptr, mask;
- int len;
- ofsAddr = moxaTableAddr[port];
- rptr = readw(ofsAddr + TXrptr);
- wptr = readw(ofsAddr + TXwptr);
- mask = readw(ofsAddr + TX_mask);
- len = mask - ((wptr - rptr) & mask);
- return (len);
- }
- int MoxaPortRxQueue(int port)
- {
- unsigned long ofsAddr;
- ushort rptr, wptr, mask;
- int len;
- ofsAddr = moxaTableAddr[port];
- rptr = readw(ofsAddr + RXrptr);
- wptr = readw(ofsAddr + RXwptr);
- mask = readw(ofsAddr + RX_mask);
- len = (wptr - rptr) & mask;
- return (len);
- }
- void MoxaPortTxDisable(int port)
- {
- unsigned long ofsAddr;
- ofsAddr = moxaTableAddr[port];
- moxafunc(ofsAddr, FC_SetXoffState, Magic_code);
- }
- void MoxaPortTxEnable(int port)
- {
- unsigned long ofsAddr;
- ofsAddr = moxaTableAddr[port];
- moxafunc(ofsAddr, FC_SetXonState, Magic_code);
- }
- int MoxaPortResetBrkCnt(int port)
- {
- ushort cnt;
- cnt = moxaBreakCnt[port];
- moxaBreakCnt[port] = 0;
- return (cnt);
- }
- void MoxaPortSendBreak(int port, int ms100)
- {
- unsigned long ofsAddr;
- ofsAddr = moxaTableAddr[port];
- if (ms100) {
- moxafunc(ofsAddr, FC_SendBreak, Magic_code);
- moxadelay(ms100 * (HZ / 10));
- } else {
- moxafunc(ofsAddr, FC_SendBreak, Magic_code);
- moxadelay(HZ / 4); /* 250 ms */
- }
- moxafunc(ofsAddr, FC_StopBreak, Magic_code);
- }
- static int moxa_get_serial_info(struct moxa_str *info,
- struct serial_struct *retinfo)
- {
- struct serial_struct tmp;
- if (!retinfo)
- return (-EFAULT);
- memset(&tmp, 0, sizeof(tmp));
- tmp.type = info->type;
- tmp.line = info->port;
- tmp.port = 0;
- tmp.irq = 0;
- tmp.flags = info->asyncflags;
- tmp.baud_base = 921600;
- tmp.close_delay = info->close_delay;
- tmp.closing_wait = info->closing_wait;
- tmp.custom_divisor = 0;
- tmp.hub6 = 0;
- if(copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
- return -EFAULT;
- return (0);
- }
- static int moxa_set_serial_info(struct moxa_str *info,
- struct serial_struct *new_info)
- {
- struct serial_struct new_serial;
- if(copy_from_user(&new_serial, new_info, sizeof(new_serial)))
- return -EFAULT;
- if ((new_serial.irq != 0) ||
- (new_serial.port != 0) ||
- // (new_serial.type != info->type) ||
- (new_serial.custom_divisor != 0) ||
- (new_serial.baud_base != 921600))
- return (-EPERM);
- if (!suser()) {
- if (((new_serial.flags & ~ASYNC_USR_MASK) !=
- (info->asyncflags & ~ASYNC_USR_MASK)))
- return (-EPERM);
- } else {
- info->close_delay = new_serial.close_delay * HZ / 100;
- info->closing_wait = new_serial.closing_wait * HZ / 100;
- }
- new_serial.flags = (new_serial.flags & ~ASYNC_FLAGS);
- new_serial.flags |= (info->asyncflags & ASYNC_FLAGS);
- if (new_serial.type == PORT_16550A) {
- MoxaSetFifo(info->port, 1);
- } else {
- MoxaSetFifo(info->port, 0);
- }
- info->type = new_serial.type;
- return (0);
- }
- /*****************************************************************************
- * Static local functions: *
- *****************************************************************************/
- /*
- * moxadelay - delays a specified number ticks
- */
- static void moxadelay(int tick)
- {
- unsigned long st, et;
- st = jiffies;
- et = st + tick;
- while (jiffies < et);
- }
- static void moxafunc(unsigned long ofsAddr, int cmd, ushort arg)
- {
- writew(arg, ofsAddr + FuncArg);
- writew(cmd, ofsAddr + FuncCode);
- wait_finish(ofsAddr);
- }
- static void wait_finish(unsigned long ofsAddr)
- {
- unsigned long i, j;
- i = jiffies;
- while (readw(ofsAddr + FuncCode) != 0) {
- j = jiffies;
- if ((j - i) > moxaFuncTout) {
- return;
- }
- }
- }
- static void low_water_check(unsigned long ofsAddr)
- {
- int len;
- ushort rptr, wptr, mask;
- if (readb(ofsAddr + FlagStat) & Xoff_state) {
- rptr = readw(ofsAddr + RXrptr);
- wptr = readw(ofsAddr + RXwptr);
- mask = readw(ofsAddr + RX_mask);
- len = (wptr - rptr) & mask;
- if (len <= Low_water)
- moxafunc(ofsAddr, FC_SendXon, 0);
- }
- }
- static int moxaloadbios(int cardno, unsigned char *tmp, int len)
- {
- unsigned long baseAddr;
- int i;
- if(copy_from_user(moxaBuff, tmp, len))
- return -EFAULT;
- baseAddr = moxaBaseAddr[cardno];
- writeb(HW_reset, baseAddr + Control_reg); /* reset */
- moxadelay(1); /* delay 10 ms */
- for (i = 0; i < 4096; i++)
- writeb(0, baseAddr + i); /* clear fix page */
- for (i = 0; i < len; i++)
- writeb(moxaBuff[i], baseAddr + i); /* download BIOS */
- writeb(0, baseAddr + Control_reg); /* restart */
- return (0);
- }
- static int moxafindcard(int cardno)
- {
- unsigned long baseAddr;
- ushort tmp;
- baseAddr = moxaBaseAddr[cardno];
- switch (moxa_boards[cardno].boardType) {
- case MOXA_BOARD_C218_ISA:
- case MOXA_BOARD_C218_PCI:
- if ((tmp = readw(baseAddr + C218_key)) != C218_KeyCode) {
- return (-1);
- }
- break;
- case MOXA_BOARD_CP204J:
- if ((tmp = readw(baseAddr + C218_key)) != CP204J_KeyCode) {
- return (-1);
- }
- break;
- default:
- if ((tmp = readw(baseAddr + C320_key)) != C320_KeyCode) {
- return (-1);
- }
- if ((tmp = readw(baseAddr + C320_status)) != STS_init) {
- return (-2);
- }
- }
- return (0);
- }
- static int moxaload320b(int cardno, unsigned char * tmp, int len)
- {
- unsigned long baseAddr;
- int i;
- if(len > sizeof(moxaBuff))
- return -EINVAL;
- if(copy_from_user(moxaBuff, tmp, len))
- return -EFAULT;
- baseAddr = moxaBaseAddr[cardno];
- writew(len - 7168 - 2, baseAddr + C320bapi_len);
- writeb(1, baseAddr + Control_reg); /* Select Page 1 */
- for (i = 0; i < 7168; i++)
- writeb(moxaBuff[i], baseAddr + DynPage_addr + i);
- writeb(2, baseAddr + Control_reg); /* Select Page 2 */
- for (i = 0; i < (len - 7168); i++)
- writeb(moxaBuff[i + 7168], baseAddr + DynPage_addr + i);
- return (0);
- }
- static int moxaloadcode(int cardno, unsigned char * tmp, int len)
- {
- unsigned long baseAddr, ofsAddr;
- int retval, port, i;
- if(copy_from_user(moxaBuff, tmp, len))
- return -EFAULT;
- baseAddr = moxaBaseAddr[cardno];
- switch (moxa_boards[cardno].boardType) {
- case MOXA_BOARD_C218_ISA:
- case MOXA_BOARD_C218_PCI:
- case MOXA_BOARD_CP204J:
- retval = moxaloadc218(cardno, baseAddr, len);
- if (retval)
- return (retval);
- port = cardno * MAX_PORTS_PER_BOARD;
- for (i = 0; i < moxa_boards[cardno].numPorts; i++, port++) {
- moxaChkPort[port] = 1;
- moxaCurBaud[port] = 9600L;
- moxaDCDState[port] = 0;
- moxaTableAddr[port] = baseAddr + Extern_table + Extern_size * i;
- ofsAddr = moxaTableAddr[port];
- writew(C218rx_mask, ofsAddr + RX_mask);
- writew(C218tx_mask, ofsAddr + TX_mask);
- writew(C218rx_spage + i * C218buf_pageno, ofsAddr + Page_rxb);
- writew(readw(ofsAddr + Page_rxb) + C218rx_pageno, ofsAddr + EndPage_rxb);
- writew(C218tx_spage + i * C218buf_pageno, ofsAddr + Page_txb);
- writew(readw(ofsAddr + Page_txb) + C218tx_pageno, ofsAddr + EndPage_txb);
- }
- break;
- default:
- retval = moxaloadc320(cardno, baseAddr, len,
- &moxa_boards[cardno].numPorts);
- if (retval)
- return (retval);
- port = cardno * MAX_PORTS_PER_BOARD;
- for (i = 0; i < moxa_boards[cardno].numPorts; i++, port++) {
- moxaChkPort[port] = 1;
- moxaCurBaud[port] = 9600L;
- moxaDCDState[port] = 0;
- moxaTableAddr[port] = baseAddr + Extern_table + Extern_size * i;
- ofsAddr = moxaTableAddr[port];
- if (moxa_boards[cardno].numPorts == 8) {
- writew(C320p8rx_mask, ofsAddr + RX_mask);
- writew(C320p8tx_mask, ofsAddr + TX_mask);
- writew(C320p8rx_spage + i * C320p8buf_pgno, ofsAddr + Page_rxb);
- writew(readw(ofsAddr + Page_rxb) + C320p8rx_pgno, ofsAddr + EndPage_rxb);
- writew(C320p8tx_spage + i * C320p8buf_pgno, ofsAddr + Page_txb);
- writew(readw(ofsAddr + Page_txb) + C320p8tx_pgno, ofsAddr + EndPage_txb);
- } else if (moxa_boards[cardno].numPorts == 16) {
- writew(C320p16rx_mask, ofsAddr + RX_mask);
- writew(C320p16tx_mask, ofsAddr + TX_mask);
- writew(C320p16rx_spage + i * C320p16buf_pgno, ofsAddr + Page_rxb);
- writew(readw(ofsAddr + Page_rxb) + C320p16rx_pgno, ofsAddr + EndPage_rxb);
- writew(C320p16tx_spage + i * C320p16buf_pgno, ofsAddr + Page_txb);
- writew(readw(ofsAddr + Page_txb) + C320p16tx_pgno, ofsAddr + EndPage_txb);
- } else if (moxa_boards[cardno].numPorts == 24) {
- writew(C320p24rx_mask, ofsAddr + RX_mask);
- writew(C320p24tx_mask, ofsAddr + TX_mask);
- writew(C320p24rx_spage + i * C320p24buf_pgno, ofsAddr + Page_rxb);
- writew(readw(ofsAddr + Page_rxb) + C320p24rx_pgno, ofsAddr + EndPage_rxb);
- writew(C320p24tx_spage + i * C320p24buf_pgno, ofsAddr + Page_txb);
- writew(readw(ofsAddr + Page_txb), ofsAddr + EndPage_txb);
- } else if (moxa_boards[cardno].numPorts == 32) {
- writew(C320p32rx_mask, ofsAddr + RX_mask);
- writew(C320p32tx_mask, ofsAddr + TX_mask);
- writew(C320p32tx_ofs, ofsAddr + Ofs_txb);
- writew(C320p32rx_spage + i * C320p32buf_pgno, ofsAddr + Page_rxb);
- writew(readb(ofsAddr + Page_rxb), ofsAddr + EndPage_rxb);
- writew(C320p32tx_spage + i * C320p32buf_pgno, ofsAddr + Page_txb);
- writew(readw(ofsAddr + Page_txb), ofsAddr + EndPage_txb);
- }
- }
- break;
- }
- return (0);
- }
- static int moxaloadc218(int cardno, unsigned long baseAddr, int len)
- {
- char retry;
- int i, j, len1, len2;
- ushort usum, *ptr, keycode;
- if (moxa_boards[cardno].boardType == MOXA_BOARD_CP204J)
- keycode = CP204J_KeyCode;
- else
- keycode = C218_KeyCode;
- usum = 0;
- len1 = len >> 1;
- ptr = (ushort *) moxaBuff;
- for (i = 0; i < len1; i++)
- usum += *(ptr + i);
- retry = 0;
- do {
- len1 = len >> 1;
- j = 0;
- while (len1) {
- len2 = (len1 > 2048) ? 2048 : len1;
- len1 -= len2;
- for (i = 0; i < len2 << 1; i++)
- writeb(moxaBuff[i + j], baseAddr + C218_LoadBuf + i);
- j += i;
- writew(len2, baseAddr + C218DLoad_len);
- writew(0, baseAddr + C218_key);
- for (i = 0; i < 100; i++) {
- if (readw(baseAddr + C218_key) == keycode)
- break;
- moxadelay(1); /* delay 10 ms */
- }
- if (readw(baseAddr + C218_key) != keycode) {
- return (-1);
- }
- }
- writew(0, baseAddr + C218DLoad_len);
- writew(usum, baseAddr + C218check_sum);
- writew(0, baseAddr + C218_key);
- for (i = 0; i < 100; i++) {
- if (readw(baseAddr + C218_key) == keycode)
- break;
- moxadelay(1); /* delay 10 ms */
- }
- retry++;
- } while ((readb(baseAddr + C218chksum_ok) != 1) && (retry < 3));
- if (readb(baseAddr + C218chksum_ok) != 1) {
- return (-1);
- }
- writew(0, baseAddr + C218_key);
- for (i = 0; i < 100; i++) {
- if (readw(baseAddr + Magic_no) == Magic_code)
- break;
- moxadelay(1); /* delay 10 ms */
- }
- if (readw(baseAddr + Magic_no) != Magic_code) {
- return (-1);
- }
- writew(1, baseAddr + Disable_IRQ);
- writew(0, baseAddr + Magic_no);
- for (i = 0; i < 100; i++) {
- if (readw(baseAddr + Magic_no) == Magic_code)
- break;
- moxadelay(1); /* delay 10 ms */
- }
- if (readw(baseAddr + Magic_no) != Magic_code) {
- return (-1);
- }
- moxaCard = 1;
- moxaIntNdx[cardno] = baseAddr + IRQindex;
- moxaIntPend[cardno] = baseAddr + IRQpending;
- moxaIntTable[cardno] = baseAddr + IRQtable;
- return (0);
- }
- static int moxaloadc320(int cardno, unsigned long baseAddr, int len, int *numPorts)
- {
- ushort usum;
- int i, j, wlen, len2, retry;
- ushort *uptr;
- usum = 0;
- wlen = len >> 1;
- uptr = (ushort *) moxaBuff;
- for (i = 0; i < wlen; i++)
- usum += uptr[i];
- retry = 0;
- j = 0;
- do {
- while (wlen) {
- if (wlen > 2048)
- len2 = 2048;
- else
- len2 = wlen;
- wlen -= len2;
- len2 <<= 1;
- for (i = 0; i < len2; i++)
- writeb(moxaBuff[j + i], baseAddr + C320_LoadBuf + i);
- len2 >>= 1;
- j += i;
- writew(len2, baseAddr + C320DLoad_len);
- writew(0, baseAddr + C320_key);
- for (i = 0; i < 10; i++) {
- if (readw(baseAddr + C320_key) == C320_KeyCode)
- break;
- moxadelay(1);
- }
- if (readw(baseAddr + C320_key) != C320_KeyCode)
- return (-1);
- }
- writew(0, baseAddr + C320DLoad_len);
- writew(usum, baseAddr + C320check_sum);
- writew(0, baseAddr + C320_key);
- for (i = 0; i < 10; i++) {
- if (readw(baseAddr + C320_key) == C320_KeyCode)
- break;
- moxadelay(1);
- }
- retry++;
- } while ((readb(baseAddr + C320chksum_ok) != 1) && (retry < 3));
- if (readb(baseAddr + C320chksum_ok) != 1)
- return (-1);
- writew(0, baseAddr + C320_key);
- for (i = 0; i < 600; i++) {
- if (readw(baseAddr + Magic_no) == Magic_code)
- break;
- moxadelay(1);
- }
- if (readw(baseAddr + Magic_no) != Magic_code)
- return (-100);
- if (moxa_boards[cardno].busType == MOXA_BUS_TYPE_PCI) { /* ASIC board */
- writew(0x3800, baseAddr + TMS320_PORT1);
- writew(0x3900, baseAddr + TMS320_PORT2);
- writew(28499, baseAddr + TMS320_CLOCK);
- } else {
- writew(0x3200, baseAddr + TMS320_PORT1);
- writew(0x3400, baseAddr + TMS320_PORT2);
- writew(19999, baseAddr + TMS320_CLOCK);
- }
- writew(1, baseAddr + Disable_IRQ);
- writew(0, baseAddr + Magic_no);
- for (i = 0; i < 500; i++) {
- if (readw(baseAddr + Magic_no) == Magic_code)
- break;
- moxadelay(1);
- }
- if (readw(baseAddr + Magic_no) != Magic_code)
- return (-102);
- j = readw(baseAddr + Module_cnt);
- if (j <= 0)
- return (-101);
- *numPorts = j * 8;
- writew(j, baseAddr + Module_no);
- writew(0, baseAddr + Magic_no);
- for (i = 0; i < 600; i++) {
- if (readw(baseAddr + Magic_no) == Magic_code)
- break;
- moxadelay(1);
- }
- if (readw(baseAddr + Magic_no) != Magic_code)
- return (-102);
- moxaCard = 1;
- moxaIntNdx[cardno] = baseAddr + IRQindex;
- moxaIntPend[cardno] = baseAddr + IRQpending;
- moxaIntTable[cardno] = baseAddr + IRQtable;
- return (0);
- }
- long MoxaPortGetCurBaud(int port)
- {
- if (moxaChkPort[port] == 0)
- return (0);
- return (moxaCurBaud[port]);
- }
- static void MoxaSetFifo(int port, int enable)
- {
- unsigned long ofsAddr = moxaTableAddr[port];
- if (!enable) {
- moxafunc(ofsAddr, FC_SetRxFIFOTrig, 0);
- moxafunc(ofsAddr, FC_SetTxFIFOCnt, 1);
- } else {
- moxafunc(ofsAddr, FC_SetRxFIFOTrig, 3);
- moxafunc(ofsAddr, FC_SetTxFIFOCnt, 16);
- }
- }
- #if 0
- int MoxaPortSetMode(int port, int databits, int stopbits, int parity)
- {
- unsigned long ofsAddr;
- int val;
- val = 0;
- switch (databits) {
- case 5:
- val |= 0;
- break;
- case 6:
- val |= 1;
- break;
- case 7:
- val |= 2;
- break;
- case 8:
- val |= 3;
- break;
- default:
- return (-1);
- }
- switch (stopbits) {
- case 0:
- val |= 0;
- break; /* stop bits 1.5 */
- case 1:
- val |= 0;
- break;
- case 2:
- val |= 4;
- break;
- default:
- return (-1);
- }
- switch (parity) {
- case 0:
- val |= 0x00;
- break; /* None */
- case 1:
- val |= 0x08;
- break; /* Odd */
- case 2:
- val |= 0x18;
- break; /* Even */
- case 3:
- val |= 0x28;
- break; /* Mark */
- case 4:
- val |= 0x38;
- break; /* Space */
- default:
- return (-1);
- }
- ofsAddr = moxaTableAddr[port];
- moxafunc(ofsAddr, FC_SetMode, val);
- return (0);
- }
- int MoxaPortTxBufSize(int port)
- {
- unsigned long ofsAddr;
- int size;
- ofsAddr = moxaTableAddr[port];
- size = readw(ofsAddr + TX_mask);
- return (size);
- }
- int MoxaPortRxBufSize(int port)
- {
- unsigned long ofsAddr;
- int size;
- ofsAddr = moxaTableAddr[port];
- size = readw(ofsAddr + RX_mask);
- return (size);
- }
- int MoxaPortRxFree(int port)
- {
- unsigned long ofsAddr;
- ushort rptr, wptr, mask;
- int len;
- ofsAddr = moxaTableAddr[port];
- rptr = readw(ofsAddr + RXrptr);
- wptr = readw(ofsAddr + RXwptr);
- mask = readw(ofsAddr + RX_mask);
- len = mask - ((wptr - rptr) & mask);
- return (len);
- }
- int MoxaPortGetBrkCnt(int port)
- {
- return (moxaBreakCnt[port]);
- }
- void MoxaPortSetXonXoff(int port, int xonValue, int xoffValue)
- {
- unsigned long ofsAddr;
- ofsAddr = moxaTableAddr[port];
- writew(xonValue, ofsAddr + FuncArg);
- writew(xoffValue, ofsAddr + FuncArg1);
- writew(FC_SetXonXoff, ofsAddr + FuncCode);
- wait_finish(ofsAddr);
- }
- int MoxaPortIsTxHold(int port)
- {
- unsigned long ofsAddr;
- int val;
- ofsAddr = moxaTableAddr[port];
- if ((moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_ISA) ||
- (moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_PCI)) {
- moxafunc(ofsAddr, FC_GetCCSR, 0);
- val = readw(ofsAddr + FuncArg);
- if (val & 0x04)
- return (1);
- } else {
- if (readw(ofsAddr + FlagStat) & Tx_flowOff)
- return (1);
- }
- return (0);
- }
- #endif