[PATCH 14/70] mxser: use tty_port

Alan Cox
2008-06-20T20:20:59Z

Switch mxser to use the new tty_port structure

Signed-off-by: Alan Cox <alan@redhat.com>
---

drivers/char/mxser.c | 257 +++++++++++++++++++++++++-------------------------
1 files changed, 126 insertions(+), 131 deletions(-)

diff --git a/drivers/char/mxser.c b/drivers/char/mxser.c
index 4b81a85..e83ccee 100644
--- a/drivers/char/mxser.c
+++ b/drivers/char/mxser.c
@@ -222,8 +222,8 @@ struct mxser_mon_ext {
struct mxser_board;

struct mxser_port {
+ struct tty_port port;
struct mxser_board *board;
- struct tty_struct *tty;

unsigned long ioaddr;
unsigned long opmode_ioaddr;
@@ -234,7 +234,6 @@ struct mxser_port {
int rx_low_water;
int baud_base; /* max. speed */
int type; /* UART type */
- int flags; /* defined in tty.h */

int x_char; /* xon/xoff character */
int IER; /* Interrupt Enable Register */
@@ -249,15 +248,12 @@ struct mxser_port {
unsigned char err_shadow;
unsigned long event;

- int count; /* # of fd on device */
- int blocked_open; /* # of blocked opens */
struct async_icount icount; /* kernel counters for 4 input interrupts */
int timeout;

int read_status_mask;
int ignore_status_mask;
int xmit_fifo_size;
- unsigned char *xmit_buf;
int xmit_head;
int xmit_tail;
int xmit_cnt;
@@ -267,7 +263,6 @@ struct mxser_port {
struct mxser_mon mon_data;

spinlock_t slock;
- wait_queue_head_t open_wait;
wait_queue_head_t delta_msr_wait;
};

@@ -575,7 +570,7 @@ static int mxser_block_til_ready(struct tty_struct *tty, struct file *filp,
*/
if ((filp->f_flags & O_NONBLOCK) ||
test_bit(TTY_IO_ERROR, &tty->flags)) {
- port->flags |= ASYNC_NORMAL_ACTIVE;
+ port->port.flags |= ASYNC_NORMAL_ACTIVE;
return 0;
}

@@ -585,32 +580,32 @@ static int mxser_block_til_ready(struct tty_struct *tty, struct file *filp,
/*
* Block waiting for the carrier detect and the line to become
* free (i.e., not in use by the callout). While we are in
- * this loop, port->count is dropped by one, so that
+ * this loop, port->port.count is dropped by one, so that
* mxser_close() knows when to free things. We restore it upon
* exit, either normal or abnormal.
*/
retval = 0;
- add_wait_queue(&port->open_wait, &wait);
+ add_wait_queue(&port->port.open_wait, &wait);

spin_lock_irqsave(&port->slock, flags);
if (!tty_hung_up_p(filp))
- port->count--;
+ port->port.count--;
spin_unlock_irqrestore(&port->slock, flags);
- port->blocked_open++;
+ port->port.blocked_open++;
while (1) {
spin_lock_irqsave(&port->slock, flags);
outb(inb(port->ioaddr + UART_MCR) |
UART_MCR_DTR | UART_MCR_RTS, port->ioaddr + UART_MCR);
spin_unlock_irqrestore(&port->slock, flags);
set_current_state(TASK_INTERRUPTIBLE);
- if (tty_hung_up_p(filp) || !(port->flags & ASYNC_INITIALIZED)) {
- if (port->flags & ASYNC_HUP_NOTIFY)
+ if (tty_hung_up_p(filp) || !(port->port.flags & ASYNC_INITIALIZED)) {
+ if (port->port.flags & ASYNC_HUP_NOTIFY)
retval = -EAGAIN;
else
retval = -ERESTARTSYS;
break;
}
- if (!(port->flags & ASYNC_CLOSING) &&
+ if (!(port->port.flags & ASYNC_CLOSING) &&
(do_clocal ||
(inb(port->ioaddr + UART_MSR) & UART_MSR_DCD)))
break;
@@ -621,13 +616,13 @@ static int mxser_block_til_ready(struct tty_struct *tty, struct file *filp,
schedule();
}
set_current_state(TASK_RUNNING);
- remove_wait_queue(&port->open_wait, &wait);
+ remove_wait_queue(&port->port.open_wait, &wait);
if (!tty_hung_up_p(filp))
- port->count++;
- port->blocked_open--;
+ port->port.count++;
+ port->port.blocked_open--;
if (retval)
return retval;
- port->flags |= ASYNC_NORMAL_ACTIVE;
+ port->port.flags |= ASYNC_NORMAL_ACTIVE;
return 0;
}

@@ -636,7 +631,7 @@ static int mxser_set_baud(struct mxser_port *info, long newspd)
int quot = 0, baud;
unsigned char cval;

- if (!info->tty || !info->tty->termios)
+ if (!info->port.tty || !info->port.tty->termios)
return -1;

if (!(info->ioaddr))
@@ -647,13 +642,13 @@ static int mxser_set_baud(struct mxser_port *info, long newspd)

if (newspd == 134) {
quot = 2 * info->baud_base / 269;
- tty_encode_baud_rate(info->tty, 134, 134);
+ tty_encode_baud_rate(info->port.tty, 134, 134);
} else if (newspd) {
quot = info->baud_base / newspd;
if (quot == 0)
quot = 1;
baud = info->baud_base/quot;
- tty_encode_baud_rate(info->tty, baud, baud);
+ tty_encode_baud_rate(info->port.tty, baud, baud);
} else {
quot = 0;
}
@@ -679,7 +674,7 @@ static int mxser_set_baud(struct mxser_port *info, long newspd)
outb(cval, info->ioaddr + UART_LCR); /* reset DLAB */

#ifdef BOTHER
- if (C_BAUD(info->tty) == BOTHER) {
+ if (C_BAUD(info->port.tty) == BOTHER) {
quot = info->baud_base % newspd;
quot *= 8;
if (quot % newspd > newspd / 2) {
@@ -707,14 +702,14 @@ static int mxser_change_speed(struct mxser_port *info,
int ret = 0;
unsigned char status;

- if (!info->tty || !info->tty->termios)
+ if (!info->port.tty || !info->port.tty->termios)
return ret;
- cflag = info->tty->termios->c_cflag;
+ cflag = info->port.tty->termios->c_cflag;
if (!(info->ioaddr))
return ret;

- if (mxser_set_baud_method[info->tty->index] == 0)
- mxser_set_baud(info, tty_get_baud_rate(info->tty));
+ if (mxser_set_baud_method[info->port.tty->index] == 0)
+ mxser_set_baud(info, tty_get_baud_rate(info->port.tty));

/* byte size and parity */
switch (cflag & CSIZE) {
@@ -777,15 +772,15 @@ static int mxser_change_speed(struct mxser_port *info,
info->IER &= ~UART_IER_MSI;
info->MCR &= ~UART_MCR_AFE;
if (cflag & CRTSCTS) {
- info->flags |= ASYNC_CTS_FLOW;
+ info->port.flags |= ASYNC_CTS_FLOW;
info->IER |= UART_IER_MSI;
if ((info->type == PORT_16550A) || (info->board->chip_flag)) {
info->MCR |= UART_MCR_AFE;
} else {
status = inb(info->ioaddr + UART_MSR);
- if (info->tty->hw_stopped) {
+ if (info->port.tty->hw_stopped) {
if (status & UART_MSR_CTS) {
- info->tty->hw_stopped = 0;
+ info->port.tty->hw_stopped = 0;
if (info->type != PORT_16550A &&
!info->board->chip_flag) {
outb(info->IER & ~UART_IER_THRI,
@@ -795,11 +790,11 @@ static int mxser_change_speed(struct mxser_port *info,
outb(info->IER, info->ioaddr +
UART_IER);
}
- tty_wakeup(info->tty);
+ tty_wakeup(info->port.tty);
}
} else {
if (!(status & UART_MSR_CTS)) {
- info->tty->hw_stopped = 1;
+ info->port.tty->hw_stopped = 1;
if ((info->type != PORT_16550A) &&
(!info->board->chip_flag)) {
info->IER &= ~UART_IER_THRI;
@@ -810,13 +805,13 @@ static int mxser_change_speed(struct mxser_port *info,
}
}
} else {
- info->flags &= ~ASYNC_CTS_FLOW;
+ info->port.flags &= ~ASYNC_CTS_FLOW;
}
outb(info->MCR, info->ioaddr + UART_MCR);
if (cflag & CLOCAL) {
- info->flags &= ~ASYNC_CHECK_CD;
+ info->port.flags &= ~ASYNC_CHECK_CD;
} else {
- info->flags |= ASYNC_CHECK_CD;
+ info->port.flags |= ASYNC_CHECK_CD;
info->IER |= UART_IER_MSI;
}
outb(info->IER, info->ioaddr + UART_IER);
@@ -825,21 +820,21 @@ static int mxser_change_speed(struct mxser_port *info,
* Set up parity check flag
*/
info->read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR;
- if (I_INPCK(info->tty))
+ if (I_INPCK(info->port.tty))
info->read_status_mask |= UART_LSR_FE | UART_LSR_PE;
- if (I_BRKINT(info->tty) || I_PARMRK(info->tty))
+ if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty))
info->read_status_mask |= UART_LSR_BI;

info->ignore_status_mask = 0;

- if (I_IGNBRK(info->tty)) {
+ if (I_IGNBRK(info->port.tty)) {
info->ignore_status_mask |= UART_LSR_BI;
info->read_status_mask |= UART_LSR_BI;
/*
* 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 |=
UART_LSR_OE |
UART_LSR_PE |
@@ -851,16 +846,16 @@ static int mxser_change_speed(struct mxser_port *info,
}
}
if (info->board->chip_flag) {
- mxser_set_must_xon1_value(info->ioaddr, START_CHAR(info->tty));
- mxser_set_must_xoff1_value(info->ioaddr, STOP_CHAR(info->tty));
- if (I_IXON(info->tty)) {
+ mxser_set_must_xon1_value(info->ioaddr, START_CHAR(info->port.tty));
+ mxser_set_must_xoff1_value(info->ioaddr, STOP_CHAR(info->port.tty));
+ if (I_IXON(info->port.tty)) {
mxser_enable_must_rx_software_flow_control(
info->ioaddr);
} else {
mxser_disable_must_rx_software_flow_control(
info->ioaddr);
}
- if (I_IXOFF(info->tty)) {
+ if (I_IXOFF(info->port.tty)) {
mxser_enable_must_tx_software_flow_control(
info->ioaddr);
} else {
@@ -890,15 +885,15 @@ static void mxser_check_modem_status(struct mxser_port *port, int status)
port->mon_data.modem_status = status;
wake_up_interruptible(&port->delta_msr_wait);

- if ((port->flags & ASYNC_CHECK_CD) && (status & UART_MSR_DDCD)) {
+ if ((port->port.flags & ASYNC_CHECK_CD) && (status & UART_MSR_DDCD)) {
if (status & UART_MSR_DCD)
- wake_up_interruptible(&port->open_wait);
+ wake_up_interruptible(&port->port.open_wait);
}

- if (port->flags & ASYNC_CTS_FLOW) {
- if (port->tty->hw_stopped) {
+ if (port->port.flags & ASYNC_CTS_FLOW) {
+ if (port->port.tty->hw_stopped) {
if (status & UART_MSR_CTS) {
- port->tty->hw_stopped = 0;
+ port->port.tty->hw_stopped = 0;

if ((port->type != PORT_16550A) &&
(!port->board->chip_flag)) {
@@ -908,11 +903,11 @@ static void mxser_check_modem_status(struct mxser_port *port, int status)
outb(port->IER, port->ioaddr +
UART_IER);
}
- tty_wakeup(port->tty);
+ tty_wakeup(port->port.tty);
}
} else {
if (!(status & UART_MSR_CTS)) {
- port->tty->hw_stopped = 1;
+ port->port.tty->hw_stopped = 1;
if (port->type != PORT_16550A &&
!port->board->chip_flag) {
port->IER &= ~UART_IER_THRI;
@@ -935,23 +930,23 @@ static int mxser_startup(struct mxser_port *info)

spin_lock_irqsave(&info->slock, flags);

- if (info->flags & ASYNC_INITIALIZED) {
+ if (info->port.flags & ASYNC_INITIALIZED) {
free_page(page);
spin_unlock_irqrestore(&info->slock, flags);
return 0;
}

if (!info->ioaddr || !info->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);
free_page(page);
spin_unlock_irqrestore(&info->slock, flags);
return 0;
}
- if (info->xmit_buf)
+ if (info->port.xmit_buf)
free_page(page);
else
- info->xmit_buf = (unsigned char *) page;
+ info->port.xmit_buf = (unsigned char *) page;

/*
* Clear the FIFO buffers and disable them
@@ -973,8 +968,8 @@ static int mxser_startup(struct mxser_port *info)
if (inb(info->ioaddr + UART_LSR) == 0xff) {
spin_unlock_irqrestore(&info->slock, flags);
if (capable(CAP_SYS_ADMIN)) {
- if (info->tty)
- set_bit(TTY_IO_ERROR, &info->tty->flags);
+ if (info->port.tty)
+ set_bit(TTY_IO_ERROR, &info->port.tty->flags);
return 0;
} else
return -ENODEV;
@@ -1012,15 +1007,15 @@ static int mxser_startup(struct mxser_port *info)
(void) inb(info->ioaddr + UART_IIR);
(void) inb(info->ioaddr + UART_MSR);

- if (info->tty)
- clear_bit(TTY_IO_ERROR, &info->tty->flags);
+ if (info->port.tty)
+ clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;

/*
* and set the speed of the serial port
*/
mxser_change_speed(info, NULL);
- info->flags |= ASYNC_INITIALIZED;
+ info->port.flags |= ASYNC_INITIALIZED;
spin_unlock_irqrestore(&info->slock, flags);

return 0;
@@ -1034,7 +1029,7 @@ static void mxser_shutdown(struct mxser_port *info)
{
unsigned long flags;

- if (!(info->flags & ASYNC_INITIALIZED))
+ if (!(info->port.flags & ASYNC_INITIALIZED))
return;

spin_lock_irqsave(&info->slock, flags);
@@ -1048,15 +1043,15 @@ static void mxser_shutdown(struct mxser_port *info)
/*
* Free the IRQ, if necessary
*/
- if (info->xmit_buf) {
- free_page((unsigned long) info->xmit_buf);
- info->xmit_buf = NULL;
+ if (info->port.xmit_buf) {
+ free_page((unsigned long) info->port.xmit_buf);
+ info->port.xmit_buf = NULL;
}

info->IER = 0;
outb(0x00, info->ioaddr + UART_IER);

- if (!info->tty || (info->tty->termios->c_cflag & HUPCL))
+ if (!info->port.tty || (info->port.tty->termios->c_cflag & HUPCL))
info->MCR &= ~(UART_MCR_DTR | UART_MCR_RTS);
outb(info->MCR, info->ioaddr + UART_MCR);

@@ -1072,10 +1067,10 @@ static void mxser_shutdown(struct mxser_port *info)
/* read data port to reset things */
(void) inb(info->ioaddr + UART_RX);

- 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;
+ info->port.flags &= ~ASYNC_INITIALIZED;

if (info->board->chip_flag)
SET_MOXA_MUST_NO_SOFTWARE_FLOW_CONTROL(info->ioaddr);
@@ -1105,12 +1100,12 @@ static int mxser_open(struct tty_struct *tty, struct file *filp)
return -ENODEV;

tty->driver_data = info;
- info->tty = tty;
+ info->port.tty = tty;
/*
* Start up serial port
*/
spin_lock_irqsave(&info->slock, flags);
- info->count++;
+ info->port.count++;
spin_unlock_irqrestore(&info->slock, flags);
retval = mxser_startup(info);
if (retval)
@@ -1170,34 +1165,34 @@ static void mxser_close(struct tty_struct *tty, struct file *filp)
spin_unlock_irqrestore(&info->slock, flags);
return;
}
- if ((tty->count == 1) && (info->count != 1)) {
+ if ((tty->count == 1) && (info->port.count != 1)) {
/*
* Uh, oh. tty->count is 1, which means that the tty
- * structure will be freed. Info->count should always
+ * structure will be freed. Info->port.count should always
* be one in these conditions. If it's greater than
* one, we've got real problems, since it means the
* serial port won't be shutdown.
*/
printk(KERN_ERR "mxser_close: bad serial port count; "
- "tty->count is 1, info->count is %d\n", info->count);
- info->count = 1;
+ "tty->count is 1, info->port.count is %d\n", info->port.count);
+ info->port.count = 1;
}
- if (--info->count < 0) {
+ if (--info->port.count < 0) {
printk(KERN_ERR "mxser_close: bad serial port count for "
- "ttys%d: %d\n", tty->index, info->count);
- info->count = 0;
+ "ttys%d: %d\n", tty->index, info->port.count);
+ info->port.count = 0;
}
- if (info->count) {
+ if (info->port.count) {
spin_unlock_irqrestore(&info->slock, flags);
return;
}
- info->flags |= ASYNC_CLOSING;
+ info->port.flags |= ASYNC_CLOSING;
spin_unlock_irqrestore(&info->slock, flags);
/*
* Save the termios structure, since this port may have
* separate termios for callout and dialin.
*/
- if (info->flags & ASYNC_NORMAL_ACTIVE)
+ if (info->port.flags & ASYNC_NORMAL_ACTIVE)
info->normal_termios = *tty->termios;
/*
* Now we wait for the transmit buffer to clear; and we notify
@@ -1216,7 +1211,7 @@ static void mxser_close(struct tty_struct *tty, struct file *filp)
if (info->board->chip_flag)
info->IER &= ~MOXA_MUST_RECV_ISR;

- if (info->flags & ASYNC_INITIALIZED) {
+ if (info->port.flags & ASYNC_INITIALIZED) {
outb(info->IER, info->ioaddr + UART_IER);
/*
* Before we drop DTR, make sure the UART transmitter
@@ -1237,14 +1232,14 @@ static void mxser_close(struct tty_struct *tty, struct file *filp)

tty->closing = 0;
info->event = 0;
- info->tty = NULL;
- if (info->blocked_open) {
+ info->port.tty = NULL;
+ if (info->port.blocked_open) {
if (info->close_delay)
schedule_timeout_interruptible(info->close_delay);
- wake_up_interruptible(&info->open_wait);
+ wake_up_interruptible(&info->port.open_wait);
}

- info->flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING);
+ info->port.flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING);
}

static int mxser_write(struct tty_struct *tty, const unsigned char *buf, int count)
@@ -1253,7 +1248,7 @@ static int mxser_write(struct tty_struct *tty, const unsigned char *buf, int cou
struct mxser_port *info = tty->driver_data;
unsigned long flags;

- if (!info->xmit_buf)
+ if (!info->port.xmit_buf)
return 0;

while (1) {
@@ -1262,7 +1257,7 @@ static int mxser_write(struct tty_struct *tty, const unsigned char *buf, int cou
if (c <= 0)
break;

- memcpy(info->xmit_buf + info->xmit_head, buf, c);
+ memcpy(info->port.xmit_buf + info->xmit_head, buf, c);
spin_lock_irqsave(&info->slock, flags);
info->xmit_head = (info->xmit_head + c) &
(SERIAL_XMIT_SIZE - 1);
@@ -1294,14 +1289,14 @@ static int mxser_put_char(struct tty_struct *tty, unsigned char ch)
struct mxser_port *info = tty->driver_data;
unsigned long flags;

- if (!info->xmit_buf)
+ if (!info->port.xmit_buf)
return 0;

if (info->xmit_cnt >= SERIAL_XMIT_SIZE - 1)
return 0;

spin_lock_irqsave(&info->slock, flags);
- info->xmit_buf[info->xmit_head++] = ch;
+ info->port.xmit_buf[info->xmit_head++] = ch;
info->xmit_head &= SERIAL_XMIT_SIZE - 1;
info->xmit_cnt++;
spin_unlock_irqrestore(&info->slock, flags);
@@ -1327,7 +1322,7 @@ static void mxser_flush_chars(struct tty_struct *tty)

if (info->xmit_cnt <= 0 ||
tty->stopped ||
- !info->xmit_buf ||
+ !info->port.xmit_buf ||
(tty->hw_stopped &&
(info->type != PORT_16550A) &&
(!info->board->chip_flag)
@@ -1370,10 +1365,10 @@ static int mxser_get_serial_info(struct mxser_port *info,
{
struct serial_struct tmp = {
.type = info->type,
- .line = info->tty->index,
+ .line = info->port.tty->index,
.port = info->ioaddr,
.irq = info->board->irq,
- .flags = info->flags,
+ .flags = info->port.flags,
.baud_base = info->baud_base,
.close_delay = info->close_delay,
.closing_wait = info->closing_wait,
@@ -1403,33 +1398,33 @@ static int mxser_set_serial_info(struct mxser_port *info,
new_serial.port != info->ioaddr)
return -EINVAL;

- flags = info->flags & ASYNC_SPD_MASK;
+ flags = info->port.flags & ASYNC_SPD_MASK;

if (!capable(CAP_SYS_ADMIN)) {
if ((new_serial.baud_base != info->baud_base) ||
(new_serial.close_delay != info->close_delay) ||
- ((new_serial.flags & ~ASYNC_USR_MASK) != (info->flags & ~ASYNC_USR_MASK)))
+ ((new_serial.flags & ~ASYNC_USR_MASK) != (info->port.flags & ~ASYNC_USR_MASK)))
return -EPERM;
- info->flags = ((info->flags & ~ASYNC_USR_MASK) |
+ info->port.flags = ((info->port.flags & ~ASYNC_USR_MASK) |
(new_serial.flags & ASYNC_USR_MASK));
} else {
/*
* OK, past this point, all the error checking has been done.
* At this point, we start making changes.....
*/
- info->flags = ((info->flags & ~ASYNC_FLAGS) |
+ info->port.flags = ((info->port.flags & ~ASYNC_FLAGS) |
(new_serial.flags & ASYNC_FLAGS));
info->close_delay = new_serial.close_delay * HZ / 100;
info->closing_wait = new_serial.closing_wait * HZ / 100;
- info->tty->low_latency =
- (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
- info->tty->low_latency = 0;
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST &&
+ info->port.tty->low_latency =
+ (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;
+ info->port.tty->low_latency = 0;
+ if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST &&
(new_serial.baud_base != info->baud_base ||
new_serial.custom_divisor !=
info->custom_divisor)) {
baud = new_serial.baud_base / new_serial.custom_divisor;
- tty_encode_baud_rate(info->tty, baud, baud);
+ tty_encode_baud_rate(info->port.tty, baud, baud);
}
}

@@ -1437,8 +1432,8 @@ static int mxser_set_serial_info(struct mxser_port *info,

process_txrx_fifo(info);

- if (info->flags & ASYNC_INITIALIZED) {
- if (flags != (info->flags & ASYNC_SPD_MASK)) {
+ if (info->port.flags & ASYNC_INITIALIZED) {
+ if (flags != (info->port.flags & ASYNC_SPD_MASK)) {
spin_lock_irqsave(&info->slock, sl_flags);
mxser_change_speed(info, NULL);
spin_unlock_irqrestore(&info->slock, sl_flags);
@@ -1693,12 +1688,12 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp)
continue;
}

- if (!port->tty || !port->tty->termios)
+ if (!port->port.tty || !port->port.tty->termios)
GMStatus[i].cflag =
port->normal_termios.c_cflag;
else
GMStatus[i].cflag =
- port->tty->termios->c_cflag;
+ port->port.tty->termios->c_cflag;

status = inb(port->ioaddr + UART_MSR);
if (status & 0x80 /*UART_MSR_DCD */ )
@@ -1755,14 +1750,14 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp)
mon_data_ext.modem_status[i] =
port->mon_data.modem_status;
mon_data_ext.baudrate[i] =
- tty_get_baud_rate(port->tty);
+ tty_get_baud_rate(port->port.tty);

- if (!port->tty || !port->tty->termios) {
+ if (!port->port.tty || !port->port.tty->termios) {
cflag = port->normal_termios.c_cflag;
iflag = port->normal_termios.c_iflag;
} else {
- cflag = port->tty->termios->c_cflag;
- iflag = port->tty->termios->c_iflag;
+ cflag = port->port.tty->termios->c_cflag;
+ iflag = port->port.tty->termios->c_iflag;
}

mon_data_ext.databits[i] = cflag & CSIZE;
@@ -1989,7 +1984,7 @@ static int mxser_ioctl(struct tty_struct *tty, struct file *file,
else
info->mon_data.hold_reason |= NPPI_NOTIFY_XOFFXENT;

- if (info->tty->hw_stopped)
+ if (info->port.tty->hw_stopped)
info->mon_data.hold_reason |= NPPI_NOTIFY_CTSHOLD;
else
info->mon_data.hold_reason &= ~NPPI_NOTIFY_CTSHOLD;
@@ -2038,7 +2033,7 @@ static void mxser_stoprx(struct tty_struct *tty)
}
}

- if (info->tty->termios->c_cflag & CRTSCTS) {
+ if (info->port.tty->termios->c_cflag & CRTSCTS) {
info->MCR &= ~UART_MCR_RTS;
outb(info->MCR, info->ioaddr + UART_MCR);
}
@@ -2075,7 +2070,7 @@ static void mxser_unthrottle(struct tty_struct *tty)
}
}

- if (info->tty->termios->c_cflag & CRTSCTS) {
+ if (info->port.tty->termios->c_cflag & CRTSCTS) {
info->MCR |= UART_MCR_RTS;
outb(info->MCR, info->ioaddr + UART_MCR);
}
@@ -2106,7 +2101,7 @@ static void mxser_start(struct tty_struct *tty)
unsigned long flags;

spin_lock_irqsave(&info->slock, flags);
- if (info->xmit_cnt && info->xmit_buf) {
+ if (info->xmit_cnt && info->port.xmit_buf) {
outb(info->IER & ~UART_IER_THRI, info->ioaddr + UART_IER);
info->IER |= UART_IER_THRI;
outb(info->IER, info->ioaddr + UART_IER);
@@ -2220,10 +2215,10 @@ static void mxser_hangup(struct tty_struct *tty)
mxser_flush_buffer(tty);
mxser_shutdown(info);
info->event = 0;
- info->count = 0;
- info->flags &= ~ASYNC_NORMAL_ACTIVE;
- info->tty = NULL;
- wake_up_interruptible(&info->open_wait);
+ info->port.count = 0;
+ info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
+ info->port.tty = NULL;
+ wake_up_interruptible(&info->port.open_wait);
}

/*
@@ -2246,7 +2241,7 @@ static void mxser_rs_break(struct tty_struct *tty, int break_state)

static void mxser_receive_chars(struct mxser_port *port, int *status)
{
- struct tty_struct *tty = port->tty;
+ struct tty_struct *tty = port->port.tty;
unsigned char ch, gdl;
int ignored = 0;
int cnt = 0;
@@ -2302,7 +2297,7 @@ intr_old:
flag = TTY_BREAK;
port->icount.brk++;

- if (port->flags & ASYNC_SAK)
+ if (port->port.flags & ASYNC_SAK)
do_SAK(tty);
} else if (*status & UART_LSR_PE) {
flag = TTY_PARITY;
@@ -2333,7 +2328,7 @@ intr_old:
} while (*status & UART_LSR_DR);

end_intr:
- mxvar_log.rxcnt[port->tty->index] += cnt;
+ mxvar_log.rxcnt[port->port.tty->index] += cnt;
port->mon_data.rxcnt += cnt;
port->mon_data.up_rxcnt += cnt;

@@ -2354,18 +2349,18 @@ static void mxser_transmit_chars(struct mxser_port *port)
if (port->x_char) {
outb(port->x_char, port->ioaddr + UART_TX);
port->x_char = 0;
- mxvar_log.txcnt[port->tty->index]++;
+ mxvar_log.txcnt[port->port.tty->index]++;
port->mon_data.txcnt++;
port->mon_data.up_txcnt++;
port->icount.tx++;
return;
}

- if (port->xmit_buf == NULL)
+ if (port->port.xmit_buf == NULL)
return;

- if ((port->xmit_cnt <= 0) || port->tty->stopped ||
- (port->tty->hw_stopped &&
+ if ((port->xmit_cnt <= 0) || port->port.tty->stopped ||
+ (port->port.tty->hw_stopped &&
(port->type != PORT_16550A) &&
(!port->board->chip_flag))) {
port->IER &= ~UART_IER_THRI;
@@ -2376,20 +2371,20 @@ static void mxser_transmit_chars(struct mxser_port *port)
cnt = port->xmit_cnt;
count = port->xmit_fifo_size;
do {
- outb(port->xmit_buf[port->xmit_tail++],
+ outb(port->port.xmit_buf[port->xmit_tail++],
port->ioaddr + UART_TX);
port->xmit_tail = port->xmit_tail & (SERIAL_XMIT_SIZE - 1);
if (--port->xmit_cnt <= 0)
break;
} while (--count > 0);
- mxvar_log.txcnt[port->tty->index] += (cnt - port->xmit_cnt);
+ mxvar_log.txcnt[port->port.tty->index] += (cnt - port->xmit_cnt);

port->mon_data.txcnt += (cnt - port->xmit_cnt);
port->mon_data.up_txcnt += (cnt - port->xmit_cnt);
port->icount.tx += (cnt - port->xmit_cnt);

if (port->xmit_cnt < WAKEUP_CHARS)
- tty_wakeup(port->tty);
+ tty_wakeup(port->port.tty);

if (port->xmit_cnt <= 0) {
port->IER &= ~UART_IER_THRI;
@@ -2440,9 +2435,9 @@ static irqreturn_t mxser_interrupt(int irq, void *dev_id)
if (iir & UART_IIR_NO_INT)
break;
iir &= MOXA_MUST_IIR_MASK;
- if (!port->tty ||
- (port->flags & ASYNC_CLOSING) ||
- !(port->flags &
+ if (!port->port.tty ||
+ (port->port.flags & ASYNC_CLOSING) ||
+ !(port->port.flags &
ASYNC_INITIALIZED)) {
status = inb(port->ioaddr + UART_LSR);
outb(0x27, port->ioaddr + UART_FCR);
@@ -2558,7 +2553,7 @@ static int __devinit mxser_initbrd(struct mxser_board *brd,
if (brd->chip_flag != MOXA_OTHER_UART)
mxser_enable_must_enchance_mode(info->ioaddr);

- info->flags = ASYNC_SHARE_IRQ;
+ info->port.flags = ASYNC_SHARE_IRQ;
info->type = brd->uart_type;

process_txrx_fifo(info);
@@ -2567,7 +2562,7 @@ static int __devinit mxser_initbrd(struct mxser_board *brd,
info->close_delay = 5 * HZ / 10;
info->closing_wait = 30 * HZ;
info->normal_termios = mxvar_sdriver->init_termios;
- init_waitqueue_head(&info->open_wait);
+ tty_port_init(&info->port);
init_waitqueue_head(&info->delta_msr_wait);
memset(&info->mon_data, 0, sizeof(struct mxser_mon));
info->err_shadow = 0;