* mxser.c -- MOXA Smartio/Industio family multiport serial driver.
*
* Copyright (C) 1999-2006 Moxa Technologies (support@moxa.com.tw).
- * Copyright (C) 2006 Jiri Slaby <jirislaby@gmail.com>
+ * Copyright (C) 2006-2007 Jiri Slaby <jirislaby@gmail.com>
*
* This code is loosely based on the 1.8 moxa driver which is based on
* Linux serial driver, written by Linus Torvalds, Theodore T'so and
#include <linux/gfp.h>
#include <linux/ioport.h>
#include <linux/mm.h>
-#include <linux/smp_lock.h>
#include <linux/delay.h>
#include <linux/pci.h>
+#include <linux/bitops.h>
#include <asm/system.h>
#include <asm/io.h>
#include <asm/irq.h>
-#include <asm/bitops.h>
#include <asm/uaccess.h>
#include "mxser_new.h"
-#define MXSER_VERSION "2.0.1" /* 1.9.15 */
+#define MXSER_VERSION "2.0.2" /* 1.10 */
#define MXSERMAJOR 174
#define MXSERCUMAJOR 175
#define UART_MCR_AFE 0x20
#define UART_LSR_SPECIAL 0x1E
-#define RELEVANT_IFLAG(iflag) (iflag & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK|\
- IXON|IXOFF))
+#define PCI_DEVICE_ID_CB108 0x1080
+#define PCI_DEVICE_ID_CB114 0x1142
+#define PCI_DEVICE_ID_CB134I 0x1341
+#define PCI_DEVICE_ID_CP138U 0x1380
+#define PCI_DEVICE_ID_POS104UL 0x1044
+
#define C168_ASIC_ID 1
#define C104_ASIC_ID 2
};
static const struct mxser_cardinfo mxser_cards[] = {
- { 8, "C168 series", }, /* C168-ISA */
- { 4, "C104 series", }, /* C104-ISA */
- { 4, "CI-104J series", }, /* CI104J */
- { 8, "C168H/PCI series", }, /* C168-PCI */
- { 4, "C104H/PCI series", }, /* C104-PCI */
- { 4, "C102 series", MXSER_HAS2 }, /* C102-ISA */
- { 4, "CI-132 series", MXSER_HAS2 }, /* CI132 */
- { 4, "CI-134 series", }, /* CI134 */
- { 2, "CP-132 series", }, /* CP132 */
- { 4, "CP-114 series", }, /* CP114 */
- { 4, "CT-114 series", }, /* CT114 */
- { 2, "CP-102 series", MXSER_HIGHBAUD }, /* CP102 */
- { 4, "CP-104U series", }, /* CP104U */
- { 8, "CP-168U series", }, /* CP168U */
- { 2, "CP-132U series", }, /* CP132U */
- { 4, "CP-134U series", }, /* CP134U */
- { 4, "CP-104JU series", }, /* CP104JU */
+/* 0*/ { 8, "C168 series", },
+ { 4, "C104 series", },
+ { 4, "CI-104J series", },
+ { 8, "C168H/PCI series", },
+ { 4, "C104H/PCI series", },
+/* 5*/ { 4, "C102 series", MXSER_HAS2 }, /* C102-ISA */
+ { 4, "CI-132 series", MXSER_HAS2 },
+ { 4, "CI-134 series", },
+ { 2, "CP-132 series", },
+ { 4, "CP-114 series", },
+/*10*/ { 4, "CT-114 series", },
+ { 2, "CP-102 series", MXSER_HIGHBAUD },
+ { 4, "CP-104U series", },
+ { 8, "CP-168U series", },
+ { 2, "CP-132U series", },
+/*15*/ { 4, "CP-134U series", },
+ { 4, "CP-104JU series", },
{ 8, "Moxa UC7000 Serial", }, /* RC7000 */
- { 8, "CP-118U series", }, /* CP118U */
- { 2, "CP-102UL series", }, /* CP102UL */
- { 2, "CP-102U series", }, /* CP102U */
- { 8, "CP-118EL series", }, /* CP118EL */
- { 8, "CP-168EL series", }, /* CP168EL */
- { 4, "CP-104EL series", } /* CP104EL */
+ { 8, "CP-118U series", },
+ { 2, "CP-102UL series", },
+/*20*/ { 2, "CP-102U series", },
+ { 8, "CP-118EL series", },
+ { 8, "CP-168EL series", },
+ { 4, "CP-104EL series", },
+ { 8, "CB-108 series", },
+/*25*/ { 4, "CB-114 series", },
+ { 4, "CB-134I series", },
+ { 8, "CP-138U series", },
+ { 4, "POS-104UL series", }
};
/* driver_data correspond to the lines in the structure above
see also ISA probe function before you change something */
static struct pci_device_id mxser_pcibrds[] = {
- { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C168),
- .driver_data = 3 },
- { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C104),
- .driver_data = 4 },
- { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP132),
- .driver_data = 8 },
- { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP114),
- .driver_data = 9 },
- { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CT114),
- .driver_data = 10 },
- { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP102),
- .driver_data = 11 },
- { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP104U),
- .driver_data = 12 },
- { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP168U),
- .driver_data = 13 },
- { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP132U),
- .driver_data = 14 },
- { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP134U),
- .driver_data = 15 },
- { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP104JU),
- .driver_data = 16 },
- { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_RC7000),
- .driver_data = 17 },
- { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP118U),
- .driver_data = 18 },
- { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP102UL),
- .driver_data = 19 },
- { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP102U),
- .driver_data = 20 },
- { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP118EL),
- .driver_data = 21 },
- { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP168EL),
- .driver_data = 22 },
- { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP104EL),
- .driver_data = 23 },
+ { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_C168), .driver_data = 3 },
+ { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_C104), .driver_data = 4 },
+ { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP132), .driver_data = 8 },
+ { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP114), .driver_data = 9 },
+ { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CT114), .driver_data = 10 },
+ { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP102), .driver_data = 11 },
+ { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP104U), .driver_data = 12 },
+ { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP168U), .driver_data = 13 },
+ { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP132U), .driver_data = 14 },
+ { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP134U), .driver_data = 15 },
+ { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP104JU),.driver_data = 16 },
+ { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_RC7000), .driver_data = 17 },
+ { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP118U), .driver_data = 18 },
+ { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP102UL),.driver_data = 19 },
+ { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP102U), .driver_data = 20 },
+ { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP118EL),.driver_data = 21 },
+ { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP168EL),.driver_data = 22 },
+ { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP104EL),.driver_data = 23 },
+ { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_CB108), .driver_data = 24 },
+ { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_CB114), .driver_data = 25 },
+ { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_CB134I), .driver_data = 26 },
+ { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_CP138U), .driver_data = 27 },
+ { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_POS104UL), .driver_data = 28 },
{ }
};
MODULE_DEVICE_TABLE(pci, mxser_pcibrds);
* and set the speed of the serial port
*/
mxser_change_speed(info, NULL);
+ info->flags |= ASYNC_INITIALIZED;
spin_unlock_irqrestore(&info->slock, flags);
- info->flags |= ASYNC_INITIALIZED;
return 0;
}
static int mxser_open(struct tty_struct *tty, struct file *filp)
{
struct mxser_port *info;
+ unsigned long flags;
int retval, line;
- /* initialize driver_data in case something fails */
- tty->driver_data = NULL;
-
line = tty->index;
if (line == MXSER_PORTS)
return 0;
/*
* Start up serial port
*/
+ spin_lock_irqsave(&info->slock, flags);
info->count++;
+ spin_unlock_irqrestore(&info->slock, flags);
retval = mxser_startup(info);
if (retval)
return retval;
return -EFAULT;
return 0;
case MOXA_ASPP_MON_EXT: {
- int status, p, shiftbit;
+ int p, shiftbit;
unsigned long opmode;
unsigned cflag, iflag;
info->speed = speed;
spin_lock_irqsave(&info->slock, flags);
- mxser_change_speed(info, 0);
+ mxser_change_speed(info, NULL);
spin_unlock_irqrestore(&info->slock, flags);
return 0;
* (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
* Caller should use TIOCGICOUNT to see which one it was
*/
- case TIOCMIWAIT: {
- DECLARE_WAITQUEUE(wait, current);
- int ret;
+ case TIOCMIWAIT:
spin_lock_irqsave(&info->slock, flags);
- cprev = info->icount; /* note the counters on entry */
+ cnow = info->icount; /* note the counters on entry */
spin_unlock_irqrestore(&info->slock, flags);
- add_wait_queue(&info->delta_msr_wait, &wait);
- while (1) {
+ wait_event_interruptible(info->delta_msr_wait, ({
+ cprev = cnow;
spin_lock_irqsave(&info->slock, flags);
cnow = info->icount; /* atomic copy */
spin_unlock_irqrestore(&info->slock, flags);
- set_current_state(TASK_INTERRUPTIBLE);
- if (((arg & TIOCM_RNG) &&
- (cnow.rng != cprev.rng)) ||
- ((arg & TIOCM_DSR) &&
- (cnow.dsr != cprev.dsr)) ||
- ((arg & TIOCM_CD) &&
- (cnow.dcd != cprev.dcd)) ||
- ((arg & TIOCM_CTS) &&
- (cnow.cts != cprev.cts))) {
- ret = 0;
- break;
- }
- /* see if a signal did it */
- if (signal_pending(current)) {
- ret = -ERESTARTSYS;
- break;
- }
- cprev = cnow;
- }
- current->state = TASK_RUNNING;
- remove_wait_queue(&info->delta_msr_wait, &wait);
+ ((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) ||
+ ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) ||
+ ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) ||
+ ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts));
+ }));
break;
- }
- /* NOTREACHED */
/*
* Get counter of input serial line interrupts (DCD,RI,DSR,CTS)
* Return: write counters to the user passed counter struct
struct mxser_port *info = tty->driver_data;
unsigned long flags;
- if ((tty->termios->c_cflag != old_termios->c_cflag) ||
- (RELEVANT_IFLAG(tty->termios->c_iflag) != RELEVANT_IFLAG(old_termios->c_iflag))) {
-
- spin_lock_irqsave(&info->slock, flags);
- mxser_change_speed(info, old_termios);
- spin_unlock_irqrestore(&info->slock, flags);
+ spin_lock_irqsave(&info->slock, flags);
+ mxser_change_speed(info, old_termios);
+ spin_unlock_irqrestore(&info->slock, flags);
- if ((old_termios->c_cflag & CRTSCTS) &&
- !(tty->termios->c_cflag & CRTSCTS)) {
- tty->hw_stopped = 0;
- mxser_start(tty);
- }
+ if ((old_termios->c_cflag & CRTSCTS) &&
+ !(tty->termios->c_cflag & CRTSCTS)) {
+ tty->hw_stopped = 0;
+ mxser_start(tty);
}
/* Handle sw stopped */
port->mon_data.rxcnt += cnt;
port->mon_data.up_rxcnt += cnt;
+ /*
+ * We are called from an interrupt context with &port->slock
+ * being held. Drop it temporarily in order to prevent
+ * recursive locking.
+ */
+ spin_unlock(&port->slock);
tty_flip_buffer_push(tty);
+ spin_lock(&port->slock);
}
static void mxser_transmit_chars(struct mxser_port *port)
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff