* int rs_360_init(void);
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/signal.h>
/* #ifdef CONFIG_SERIAL_CONSOLE */ /* This seems to be a post 2.0 thing - mles */
#include <linux/console.h>
+#include <linux/jiffies.h>
/* this defines the index into rs_table for the port to use
*/
static _INLINE_ void receive_chars(ser_info_t *info)
{
- struct tty_struct *tty = info->tty;
- unsigned char ch, *cp;
+ struct tty_struct *tty = info->port.tty;
+ unsigned char ch, flag, *cp;
/*int ignored = 0;*/
int i;
ushort status;
cp = (char *)bdp->buf;
status = bdp->status;
- /* Check to see if there is room in the tty buffer for
- * the characters in our BD buffer. If not, we exit
- * now, leaving the BD with the characters. We'll pick
- * them up again on the next receive interrupt (which could
- * be a timeout).
- */
- if ((tty->flip.count + i) >= TTY_FLIPBUF_SIZE)
- break;
-
while (i-- > 0) {
ch = *cp++;
- *tty->flip.char_buf_ptr = ch;
icount->rx++;
#ifdef SERIAL_DEBUG_INTR
printk("DR%02x:%02x...", ch, status);
#endif
- *tty->flip.flag_buf_ptr = 0;
+ flag = TTY_NORMAL;
+
if (status & (BD_SC_BR | BD_SC_FR |
BD_SC_PR | BD_SC_OV)) {
/*
if (info->flags & ASYNC_SAK)
do_SAK(tty);
} else if (status & BD_SC_PR)
- *tty->flip.flag_buf_ptr = TTY_PARITY;
+ flag = TTY_PARITY;
else if (status & BD_SC_FR)
- *tty->flip.flag_buf_ptr = TTY_FRAME;
- if (status & BD_SC_OV) {
- /*
- * Overrun is special, since it's
- * reported immediately, and doesn't
- * affect the current character
- */
- if (tty->flip.count < TTY_FLIPBUF_SIZE) {
- tty->flip.count++;
- tty->flip.flag_buf_ptr++;
- tty->flip.char_buf_ptr++;
- *tty->flip.flag_buf_ptr =
- TTY_OVERRUN;
- }
- }
+ flag = TTY_FRAME;
}
- if (tty->flip.count >= TTY_FLIPBUF_SIZE)
- break;
-
- tty->flip.flag_buf_ptr++;
- tty->flip.char_buf_ptr++;
- tty->flip.count++;
+ tty_insert_flip_char(tty, ch, flag);
+ if (status & BD_SC_OV)
+ /*
+ * Overrun is special, since it's
+ * reported immediately, and doesn't
+ * affect the current character
+ */
+ tty_insert_flip_char(tty, 0, TTY_OVERRUN);
}
/* This BD is ready to be used again. Clear status.
info->rx_cur = (QUICC_BD *)bdp;
- schedule_work(&tty->flip.work);
+ tty_schedule_flip(tty);
}
static _INLINE_ void receive_break(ser_info_t *info)
{
- struct tty_struct *tty = info->tty;
+ struct tty_struct *tty = info->port.tty;
info->state->icount.brk++;
/* Check to see if there is room in the tty buffer for
* the break. If not, we exit now, losing the break. FIXME
*/
- if ((tty->flip.count + 1) >= TTY_FLIPBUF_SIZE)
- return;
- *(tty->flip.flag_buf_ptr++) = TTY_BREAK;
- *(tty->flip.char_buf_ptr++) = 0;
- tty->flip.count++;
-
- schedule_work(&tty->flip.work);
+ tty_insert_flip_char(tty, 0, TTY_BREAK);
+ tty_schedule_flip(tty);
}
static _INLINE_ void transmit_chars(ser_info_t *info)
{
if ((info->flags & TX_WAKEUP) ||
- (info->tty->flags & (1 << TTY_DO_WRITE_WAKEUP))) {
+ (info->port.tty->flags & (1 << TTY_DO_WRITE_WAKEUP))) {
schedule_work(&info->tqueue);
}
}
}
if (info->flags & ASYNC_CTS_FLOW) {
- if (info->tty->hw_stopped) {
+ if (info->port.tty->hw_stopped) {
if (status & UART_MSR_CTS) {
#if (defined(SERIAL_DEBUG_INTR) || defined(SERIAL_DEBUG_FLOW))
printk("CTS tx start...");
#endif
- info->tty->hw_stopped = 0;
+ info->port.tty->hw_stopped = 0;
info->IER |= UART_IER_THRI;
serial_out(info, UART_IER, info->IER);
rs_sched_event(info, RS_EVENT_WRITE_WAKEUP);
#if (defined(SERIAL_DEBUG_INTR) || defined(SERIAL_DEBUG_FLOW))
printk("CTS tx stop...");
#endif
- info->tty->hw_stopped = 1;
+ info->port.tty->hw_stopped = 1;
info->IER &= ~UART_IER_THRI;
serial_out(info, UART_IER, info->IER);
}
* This is the serial driver's interrupt routine for a single port
*/
/* static void rs_360_interrupt(void *dev_id) */ /* until and if we start servicing irqs here */
-static void rs_360_interrupt(int vec, void *dev_id, struct pt_regs *fp)
+static void rs_360_interrupt(int vec, void *dev_id)
{
u_char events;
int idx;
volatile struct smc_regs *smcp;
volatile struct scc_regs *sccp;
- info = (ser_info_t *)dev_id;
+ info = dev_id;
idx = PORT_NUM(info->state->smc_scc_num);
if (info->state->smc_scc_num & NUM_IS_SCC) {
ser_info_t *info = (ser_info_t *) private_;
struct tty_struct *tty;
- tty = info->tty;
+ tty = info->port.tty;
if (!tty)
return;
struct async_struct *info = (struct async_struct *) private_;
struct tty_struct *tty;
- tty = info->tty;
+ tty = info->port.tty;
if (!tty)
return;
#ifdef maybe
if (!state->port || !state->type) {
- if (info->tty)
- set_bit(TTY_IO_ERROR, &info->tty->flags);
+ if (info->port.tty)
+ set_bit(TTY_IO_ERROR, &info->port.tty->flags);
goto errout;
}
#endif
#ifdef modem_control
info->MCR = 0;
- if (info->tty->termios->c_cflag & CBAUD)
+ if (info->port.tty->termios->c_cflag & CBAUD)
info->MCR = UART_MCR_DTR | UART_MCR_RTS;
#endif
- if (info->tty)
- clear_bit(TTY_IO_ERROR, &info->tty->flags);
+ if (info->port.tty)
+ clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
/*
* and set the speed of the serial port
smcp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN);
}
- if (info->tty)
- set_bit(TTY_IO_ERROR, &info->tty->flags);
+ if (info->port.tty)
+ set_bit(TTY_IO_ERROR, &info->port.tty->flags);
info->flags &= ~ASYNC_INITIALIZED;
local_irq_restore(flags);
volatile struct smc_regs *smcp;
volatile struct scc_regs *sccp;
- if (!info->tty || !info->tty->termios)
+ if (!info->port.tty || !info->port.tty->termios)
return;
- cflag = info->tty->termios->c_cflag;
+ cflag = info->port.tty->termios->c_cflag;
state = info->state;
/*
* Set up parity check flag
*/
-#define RELEVANT_IFLAG(iflag) (iflag & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK))
-
info->read_status_mask = (BD_SC_EMPTY | BD_SC_OV);
- if (I_INPCK(info->tty))
+ if (I_INPCK(info->port.tty))
info->read_status_mask |= BD_SC_FR | BD_SC_PR;
- if (I_BRKINT(info->tty) || I_PARMRK(info->tty))
+ if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty))
info->read_status_mask |= BD_SC_BR;
/*
* Characters to ignore
*/
info->ignore_status_mask = 0;
- if (I_IGNPAR(info->tty))
+ if (I_IGNPAR(info->port.tty))
info->ignore_status_mask |= BD_SC_PR | BD_SC_FR;
- if (I_IGNBRK(info->tty)) {
+ if (I_IGNBRK(info->port.tty)) {
info->ignore_status_mask |= BD_SC_BR;
/*
* If we're ignore parity and break indicators, ignore
* overruns too. (For real raw support).
*/
- if (I_IGNPAR(info->tty))
+ if (I_IGNPAR(info->port.tty))
info->ignore_status_mask |= BD_SC_OV;
}
/*
volatile QUICC_BD *bdp;
if (serial_paranoia_check(info, tty->name, "rs_put_char"))
- return;
+ return 0;
if (!tty)
- return;
+ return 0;
bdp = info->tx_cur;
while (bdp->status & BD_SC_READY);
bdp++;
info->tx_cur = (QUICC_BD *)bdp;
+ return 1;
}
#ifdef modem_control
unsigned char control, status;
- if (serial_paranoia_check(info, tty->name, __FUNCTION__))
+ if (serial_paranoia_check(info, tty->name, __func__))
return -ENODEV;
if (tty->flags & (1 << TTY_IO_ERROR))
ser_info_t *info = (ser_info_t *)tty->driver_data;
unsigned int arg;
- if (serial_paranoia_check(info, tty->name, __FUNCTION__))
+ if (serial_paranoia_check(info, tty->name, __func__))
return -ENODEV;
if (tty->flags & (1 << TTY_IO_ERROR))
return -EIO;
-
+ /* FIXME: locking on info->mcr */
if (set & TIOCM_RTS)
info->mcr |= UART_MCR_RTS;
if (set & TIOCM_DTR)
return retval;
end_break(info);
return 0;
- case TIOCGSOFTCAR:
- /* return put_user(C_CLOCAL(tty) ? 1 : 0, (int *) arg); */
- put_user(C_CLOCAL(tty) ? 1 : 0, (int *) arg);
- return 0;
- case TIOCSSOFTCAR:
- error = get_user(arg, (unsigned int *) arg);
- if (error)
- return error;
- tty->termios->c_cflag =
- ((tty->termios->c_cflag & ~CLOCAL) |
- (arg ? CLOCAL : 0));
- return 0;
#ifdef maybe
case TIOCSERGETLSR: /* Get line status register */
return get_lsr_info(info, (unsigned int *) arg);
/* FIX UP modem control here someday......
*/
-static void rs_360_set_termios(struct tty_struct *tty, struct termios *old_termios)
+static void rs_360_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
{
ser_info_t *info = (ser_info_t *)tty->driver_data;
- if ( (tty->termios->c_cflag == old_termios->c_cflag)
- && ( RELEVANT_IFLAG(tty->termios->c_iflag)
- == RELEVANT_IFLAG(old_termios->c_iflag)))
- return;
-
change_speed(info);
#ifdef modem_control
rs_360_wait_until_sent(tty, info->timeout);
}
shutdown(info);
- if (tty->driver->flush_buffer)
- tty->driver->flush_buffer(tty);
+ rs_360_flush_buffer(tty);
tty_ldisc_flush(tty);
tty->closing = 0;
info->event = 0;
- info->tty = 0;
+ info->port.tty = NULL;
if (info->blocked_open) {
if (info->close_delay) {
msleep_interruptible(jiffies_to_msecs(info->close_delay));
printk("jiff=%lu...", jiffies);
#endif
+ lock_kernel();
/* We go through the loop at least once because we can't tell
* exactly when the last character exits the shifter. There can
* be at least two characters waiting to be sent after the buffers
msleep_interruptible(jiffies_to_msecs(char_time));
if (signal_pending(current))
break;
- if (timeout && ((orig_jiffies + timeout) < jiffies))
+ if (timeout && (time_after(jiffies, orig_jiffies + timeout)))
break;
/* The 'tx_cur' is really the next buffer to send. We
* have to back up to the previous BD and wait for it
bdp--;
} while (bdp->status & BD_SC_READY);
current->state = TASK_RUNNING;
+ unlock_kernel();
#ifdef SERIAL_DEBUG_RS_WAIT_UNTIL_SENT
printk("lsr = %d (jiff=%lu)...done\n", lsr, jiffies);
#endif
info->event = 0;
state->count = 0;
info->flags &= ~ASYNC_NORMAL_ACTIVE;
- info->tty = 0;
+ info->port.tty = NULL;
wake_up_interruptible(&info->open_wait);
}
printk("rs_open %s, count = %d\n", tty->name, info->state->count);
#endif
tty->driver_data = info;
- info->tty = tty;
+ info->port.tty = tty;
/*
* Start up serial port
info->port = state->port;
info->flags = state->flags;
info->quot = 0;
- info->tty = 0;
+ info->port.tty = NULL;
}
local_irq_disable();
status = serial_in(info, UART_MSR);
*/
static int baud_idx;
-static struct tty_operations rs_360_ops = {
+static const struct tty_operations rs_360_ops = {
.owner = THIS_MODULE,
.open = rs_360_open,
.close = rs_360_close,
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff