#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.h"
#define UART_MCR_AFE 0x20
#define UART_LSR_SPECIAL 0x1E
-#define RELEVANT_IFLAG(iflag) (iflag & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK|\
- IXON|IXOFF))
#define IRQ_T(info) ((info->flags & ASYNC_SHARE_IRQ) ? IRQF_SHARED : IRQF_DISABLED)
unsigned long event;
int count; /* # of fd on device */
int blocked_open; /* # of blocked opens */
- long session; /* Session of opening process */
- long pgrp; /* pgrp of opening process */
unsigned char *xmit_buf;
int xmit_head;
int xmit_tail;
/* static void mxser_poll(unsigned long); */
static int mxser_get_ISA_conf(int, struct mxser_hwconf *);
-static int mxser_get_PCI_conf(int, int, int, struct mxser_hwconf *);
static void mxser_do_softint(struct work_struct *);
static int mxser_open(struct tty_struct *, struct file *);
static void mxser_close(struct tty_struct *, struct file *);
static void mxser_startrx(struct tty_struct *tty);
static void mxser_stoprx(struct tty_struct *tty);
-
+#ifdef CONFIG_PCI
static int CheckIsMoxaMust(int io)
{
u8 oldmcr, hwid;
}
return MOXA_OTHER_UART;
}
+#endif
/* above is modified by Victor Yu. 08-15-2002 */
/* Initialize the tty_driver structure */
memset(mxvar_sdriver, 0, sizeof(struct tty_driver));
+ mxvar_sdriver->owner = THIS_MODULE;
mxvar_sdriver->magic = TTY_DRIVER_MAGIC;
mxvar_sdriver->name = "ttyMI";
mxvar_sdriver->major = ttymajor;
mxser_change_speed(info, NULL);
}
- info->session = process_session(current);
- info->pgrp = process_group(current);
-
/*
status = mxser_get_msr(info->base, 0, info->port);
mxser_check_modem_status(info, status);
*/
-/* unmark here for very high baud rate (ex. 921600 bps) used */
+ /* unmark here for very high baud rate (ex. 921600 bps) used */
tty->low_latency = 1;
return 0;
}
spin_unlock_irqrestore(&info->slock, flags);
/* above added by shinhay */
- wake_up_interruptible(&tty->write_wait);
- if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) && tty->ldisc.write_wakeup)
- (tty->ldisc.write_wakeup) (tty);
+ tty_wakeup(tty);
}
static int mxser_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg)
* (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);
+ cnow = info->icount; /* note the counters on entry */
+ spin_unlock_irqrestore(&info->slock, flags);
+
+ wait_event_interruptible(info->delta_msr_wait, ({
+ cprev = cnow;
spin_lock_irqsave(&info->slock, flags);
- cprev = info->icount; /* note the counters on entry */
+ cnow = info->icount; /* atomic copy */
spin_unlock_irqrestore(&info->slock, flags);
- add_wait_queue(&info->delta_msr_wait, &wait);
- while (1) {
- 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);
- break;
- }
- /* NOTREACHED */
+ ((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;
/*
* Get counter of input serial line interrupts (DCD,RI,DSR,CTS)
* Return: write counters to the user passed counter struct
struct mxser_struct *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))) {
-
- mxser_change_speed(info, old_termios);
+ mxser_change_speed(info, old_termios);
- 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 */
inb(info->base + UART_MSR);
continue;
}
- /* above add by Victor Yu. 09-13-2002 */
- /*
- if (info->tty->flip.count < TTY_FLIPBUF_SIZE / 4) {
- info->IER |= MOXA_MUST_RECV_ISR;
- outb(info->IER, info->base + UART_IER);
- }
- */
-
/* mask by Victor Yu. 09-13-2002
if ( !info->tty ||
info->IER |= UART_IER_MSI;
if ((info->type == PORT_16550A) || (info->IsMoxaMustChipFlag)) {
info->MCR |= UART_MCR_AFE;
- /* status = mxser_get_msr(info->base, 0, info->port); */
-/*
- save_flags(flags);
- cli();
- status = inb(baseaddr + UART_MSR);
- restore_flags(flags);
-*/
- /* mxser_check_modem_status(info, status); */
} else {
- /* status = mxser_get_msr(info->base, 0, info->port); */
- /* MX_LOCK(&info->slock); */
status = inb(info->base + UART_MSR);
- /* MX_UNLOCK(&info->slock); */
if (info->tty->hw_stopped) {
if (status & UART_MSR_CTS) {
info->tty->hw_stopped = 0;
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff