[PATCH 20/70] cyclades: use tty_port

Alan Cox
2008-06-20T20:22:58Z

Switch cyclades to use the new tty_port structure

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

drivers/char/cyclades.c | 315 +++++++++++++++++++++++-----------------------
include/linux/cyclades.h | 7 -
2 files changed, 158 insertions(+), 164 deletions(-)

diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c
index 2bf4b4a..e06f637 100644
--- a/drivers/char/cyclades.c
+++ b/drivers/char/cyclades.c
@@ -762,7 +762,7 @@ static int cy_next_channel; /* next minor available */
/*
* This is used to look up the divisor speeds and the timeouts
* We're normally limited to 15 distinct baud rates. The extra
- * are accessed via settings in info->flags.
+ * are accessed via settings in info->port.flags.
* 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
* 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
* HI VHI
@@ -1003,7 +1003,7 @@ static void cyy_chip_rx(struct cyclades_card *cinfo, int chip,
cy_writeb(base_addr + (CyCAR << index), save_xir);

/* if there is nowhere to put the data, discard it */
- if (info->tty == NULL) {
+ if (info->port.tty == NULL) {
if ((readb(base_addr + (CyRIVR << index)) & CyIVRMask) ==
CyIVRRxEx) { /* exception */
data = readb(base_addr + (CyRDSR << index));
@@ -1015,7 +1015,7 @@ static void cyy_chip_rx(struct cyclades_card *cinfo, int chip,
goto end;
}
/* there is an open port for this data */
- tty = info->tty;
+ tty = info->port.tty;
if ((readb(base_addr + (CyRIVR << index)) & CyIVRMask) ==
CyIVRRxEx) { /* exception */
data = readb(base_addr + (CyRDSR << index));
@@ -1041,7 +1041,7 @@ static void cyy_chip_rx(struct cyclades_card *cinfo, int chip,
readb(base_addr + (CyRDSR <<
index)), TTY_BREAK);
info->icount.rx++;
- if (info->flags & ASYNC_SAK)
+ if (info->port.flags & ASYNC_SAK)
do_SAK(tty);
} else if (data & CyFRAME) {
tty_insert_flip_char(tty,
@@ -1145,7 +1145,7 @@ static void cyy_chip_tx(struct cyclades_card *cinfo, unsigned int chip,
goto end;
}
info = &cinfo->ports[channel + chip * 4];
- if (info->tty == NULL) {
+ if (info->port.tty == NULL) {
cy_writeb(base_addr + (CySRER << index),
readb(base_addr + (CySRER << index)) & ~CyTxRdy);
goto end;
@@ -1190,13 +1190,13 @@ static void cyy_chip_tx(struct cyclades_card *cinfo, unsigned int chip,
}
goto done;
}
- if (info->xmit_buf == NULL) {
+ if (info->port.xmit_buf == NULL) {
cy_writeb(base_addr + (CySRER << index),
readb(base_addr + (CySRER << index)) &
~CyTxRdy);
goto done;
}
- if (info->tty->stopped || info->tty->hw_stopped) {
+ if (info->port.tty->stopped || info->port.tty->hw_stopped) {
cy_writeb(base_addr + (CySRER << index),
readb(base_addr + (CySRER << index)) &
~CyTxRdy);
@@ -1211,7 +1211,7 @@ static void cyy_chip_tx(struct cyclades_card *cinfo, unsigned int chip,
* character. This is necessary because there may not be room
* for the two chars needed to send a NULL.)
*/
- outch = info->xmit_buf[info->xmit_tail];
+ outch = info->port.xmit_buf[info->xmit_tail];
if (outch) {
info->xmit_cnt--;
info->xmit_tail = (info->xmit_tail + 1) &
@@ -1232,7 +1232,7 @@ static void cyy_chip_tx(struct cyclades_card *cinfo, unsigned int chip,
}

done:
- tty_wakeup(info->tty);
+ tty_wakeup(info->port.tty);
end:
/* end of service */
cy_writeb(base_addr + (CyTIR << index), save_xir & 0x3f);
@@ -1256,7 +1256,7 @@ static void cyy_chip_modem(struct cyclades_card *cinfo, int chip,
mdm_change = readb(base_addr + (CyMISR << index));
mdm_status = readb(base_addr + (CyMSVR1 << index));

- if (!info->tty)
+ if (!info->port.tty)
goto end;

if (mdm_change & CyANY_DELTA) {
@@ -1273,29 +1273,29 @@ static void cyy_chip_modem(struct cyclades_card *cinfo, int chip,
wake_up_interruptible(&info->delta_msr_wait);
}

- if ((mdm_change & CyDCD) && (info->flags & ASYNC_CHECK_CD)) {
+ if ((mdm_change & CyDCD) && (info->port.flags & ASYNC_CHECK_CD)) {
if (!(mdm_status & CyDCD)) {
- tty_hangup(info->tty);
- info->flags &= ~ASYNC_NORMAL_ACTIVE;
+ tty_hangup(info->port.tty);
+ info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
}
- wake_up_interruptible(&info->open_wait);
+ wake_up_interruptible(&info->port.open_wait);
}
- if ((mdm_change & CyCTS) && (info->flags & ASYNC_CTS_FLOW)) {
- if (info->tty->hw_stopped) {
+ if ((mdm_change & CyCTS) && (info->port.flags & ASYNC_CTS_FLOW)) {
+ if (info->port.tty->hw_stopped) {
if (mdm_status & CyCTS) {
/* cy_start isn't used
because... !!! */
- info->tty->hw_stopped = 0;
+ info->port.tty->hw_stopped = 0;
cy_writeb(base_addr + (CySRER << index),
readb(base_addr + (CySRER << index)) |
CyTxRdy);
- tty_wakeup(info->tty);
+ tty_wakeup(info->port.tty);
}
} else {
if (!(mdm_status & CyCTS)) {
/* cy_stop isn't used
because ... !!! */
- info->tty->hw_stopped = 1;
+ info->port.tty->hw_stopped = 1;
cy_writeb(base_addr + (CySRER << index),
readb(base_addr + (CySRER << index)) &
~CyTxRdy);
@@ -1449,7 +1449,7 @@ static void cyz_handle_rx(struct cyclades_port *info,
struct BUF_CTRL __iomem *buf_ctrl)
{
struct cyclades_card *cinfo = info->card;
- struct tty_struct *tty = info->tty;
+ struct tty_struct *tty = info->port.tty;
unsigned int char_count;
int len;
#ifdef BLOCKMOVE
@@ -1542,7 +1542,7 @@ static void cyz_handle_tx(struct cyclades_port *info,
struct BUF_CTRL __iomem *buf_ctrl)
{
struct cyclades_card *cinfo = info->card;
- struct tty_struct *tty = info->tty;
+ struct tty_struct *tty = info->port.tty;
u8 data;
unsigned int char_count;
#ifdef BLOCKMOVE
@@ -1585,7 +1585,7 @@ static void cyz_handle_tx(struct cyclades_port *info,

memcpy_toio((char *)(cinfo->base_addr + tx_bufaddr +
tx_put),
- &info->xmit_buf[info->xmit_tail],
+ &info->port.xmit_buf[info->xmit_tail],
small_count);

tx_put = (tx_put + small_count) & (tx_bufsize - 1);
@@ -1597,7 +1597,7 @@ static void cyz_handle_tx(struct cyclades_port *info,
}
#else
while (info->xmit_cnt && char_count) {
- data = info->xmit_buf[info->xmit_tail];
+ data = info->port.xmit_buf[info->xmit_tail];
info->xmit_cnt--;
info->xmit_tail = (info->xmit_tail + 1) &
(SERIAL_XMIT_SIZE - 1);
@@ -1642,7 +1642,7 @@ static void cyz_handle_cmd(struct cyclades_card *cinfo)
special_count = 0;
delta_count = 0;
info = &cinfo->ports[channel];
- tty = info->tty;
+ tty = info->port.tty;
if (tty == NULL)
continue;

@@ -1668,15 +1668,15 @@ static void cyz_handle_cmd(struct cyclades_card *cinfo)
case C_CM_MDCD:
info->icount.dcd++;
delta_count++;
- if (info->flags & ASYNC_CHECK_CD) {
+ if (info->port.flags & ASYNC_CHECK_CD) {
if ((fw_ver > 241 ? ((u_long) param) :
readl(&ch_ctrl->rs_status)) &
C_RS_DCD) {
- wake_up_interruptible(&info->open_wait);
+ wake_up_interruptible(&info->port.open_wait);
} else {
- tty_hangup(info->tty);
- wake_up_interruptible(&info->open_wait);
- info->flags &= ~ASYNC_NORMAL_ACTIVE;
+ tty_hangup(info->port.tty);
+ wake_up_interruptible(&info->port.open_wait);
+ info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
}
}
break;
@@ -1814,7 +1814,7 @@ static void cyz_poll(unsigned long arg)

for (port = 0; port < cinfo->nports; port++) {
info = &cinfo->ports[port];
- tty = info->tty;
+ tty = info->port.tty;
buf_ctrl = &(zfw_ctrl->buf_ctrl[port]);

if (!info->throttle)
@@ -1853,22 +1853,22 @@ static int startup(struct cyclades_port *info)

spin_lock_irqsave(&card->card_lock, flags);

- if (info->flags & ASYNC_INITIALIZED) {
+ if (info->port.flags & ASYNC_INITIALIZED) {
free_page(page);
goto errout;
}

if (!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);
goto errout;
}

- 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;

spin_unlock_irqrestore(&card->card_lock, flags);

@@ -1909,10 +1909,10 @@ static int startup(struct cyclades_port *info)

cy_writeb(base_addr + (CySRER << index),
readb(base_addr + (CySRER << index)) | CyRxData);
- info->flags |= ASYNC_INITIALIZED;
+ info->port.flags |= ASYNC_INITIALIZED;

- 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;
info->breakon = info->breakoff = 0;
memset((char *)&info->idle_stats, 0, sizeof(info->idle_stats));
@@ -1994,9 +1994,9 @@ static int startup(struct cyclades_port *info)

/* enable send, recv, modem !!! */

- info->flags |= ASYNC_INITIALIZED;
- if (info->tty)
- clear_bit(TTY_IO_ERROR, &info->tty->flags);
+ info->port.flags |= ASYNC_INITIALIZED;
+ if (info->port.tty)
+ clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
info->breakon = info->breakoff = 0;
memset((char *)&info->idle_stats, 0, sizeof(info->idle_stats));
@@ -2065,7 +2065,7 @@ static void shutdown(struct cyclades_port *info)
void __iomem *base_addr;
int chip, channel, index;

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

card = info->card;
@@ -2087,14 +2087,14 @@ static void shutdown(struct cyclades_port *info)
/* Clear delta_msr_wait queue to avoid mem leaks. */
wake_up_interruptible(&info->delta_msr_wait);

- if (info->xmit_buf) {
+ if (info->port.xmit_buf) {
unsigned char *temp;
- temp = info->xmit_buf;
- info->xmit_buf = NULL;
+ temp = info->port.xmit_buf;
+ info->port.xmit_buf = NULL;
free_page((unsigned long)temp);
}
cy_writeb(base_addr + (CyCAR << index), (u_char) channel);
- if (!info->tty || (info->tty->termios->c_cflag & HUPCL)) {
+ if (!info->port.tty || (info->port.tty->termios->c_cflag & HUPCL)) {
cy_writeb(base_addr + (CyMSVR1 << index), ~CyRTS);
cy_writeb(base_addr + (CyMSVR2 << index), ~CyDTR);
#ifdef CY_DEBUG_DTR
@@ -2108,9 +2108,9 @@ static void shutdown(struct cyclades_port *info)
/* it may be appropriate to clear _XMIT at
some later date (after testing)!!! */

- if (info->tty)
- set_bit(TTY_IO_ERROR, &info->tty->flags);
- info->flags &= ~ASYNC_INITIALIZED;
+ if (info->port.tty)
+ set_bit(TTY_IO_ERROR, &info->port.tty->flags);
+ info->port.flags &= ~ASYNC_INITIALIZED;
spin_unlock_irqrestore(&card->card_lock, flags);
} else {
struct FIRM_ID __iomem *firm_id;
@@ -2136,14 +2136,14 @@ static void shutdown(struct cyclades_port *info)

spin_lock_irqsave(&card->card_lock, flags);

- if (info->xmit_buf) {
+ if (info->port.xmit_buf) {
unsigned char *temp;
- temp = info->xmit_buf;
- info->xmit_buf = NULL;
+ temp = info->port.xmit_buf;
+ info->port.xmit_buf = NULL;
free_page((unsigned long)temp);
}

- if (!info->tty || (info->tty->termios->c_cflag & HUPCL)) {
+ if (!info->port.tty || (info->port.tty->termios->c_cflag & HUPCL)) {
cy_writel(&ch_ctrl[channel].rs_control,
(__u32)(readl(&ch_ctrl[channel].rs_control) &
~(C_RS_RTS | C_RS_DTR)));
@@ -2158,9 +2158,9 @@ static void shutdown(struct cyclades_port *info)
#endif
}

- if (info->tty)
- set_bit(TTY_IO_ERROR, &info->tty->flags);
- info->flags &= ~ASYNC_INITIALIZED;
+ if (info->port.tty)
+ set_bit(TTY_IO_ERROR, &info->port.tty->flags);
+ info->port.flags &= ~ASYNC_INITIALIZED;

spin_unlock_irqrestore(&card->card_lock, flags);
}
@@ -2194,10 +2194,10 @@ block_til_ready(struct tty_struct *tty, struct file *filp,
* 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) || (info->flags & ASYNC_CLOSING)) {
- wait_event_interruptible(info->close_wait,
- !(info->flags & ASYNC_CLOSING));
- return (info->flags & ASYNC_HUP_NOTIFY) ? -EAGAIN: -ERESTARTSYS;
+ if (tty_hung_up_p(filp) || (info->port.flags & ASYNC_CLOSING)) {
+ wait_event_interruptible(info->port.close_wait,
+ !(info->port.flags & ASYNC_CLOSING));
+ return (info->port.flags & ASYNC_HUP_NOTIFY) ? -EAGAIN: -ERESTARTSYS;
}

/*
@@ -2206,32 +2206,32 @@ block_til_ready(struct tty_struct *tty, struct file *filp,
*/
if ((filp->f_flags & O_NONBLOCK) ||
(tty->flags & (1 << TTY_IO_ERROR))) {
- info->flags |= ASYNC_NORMAL_ACTIVE;
+ info->port.flags |= ASYNC_NORMAL_ACTIVE;
return 0;
}

/*
* 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, info->count is dropped by one, so that
+ * this loop, info->port.count is dropped by one, so that
* cy_close() knows when to free things. We restore it upon
* exit, either normal or abnormal.
*/
retval = 0;
- add_wait_queue(&info->open_wait, &wait);
+ add_wait_queue(&info->port.open_wait, &wait);
#ifdef CY_DEBUG_OPEN
printk(KERN_DEBUG "cyc block_til_ready before block: ttyC%d, "
- "count = %d\n", info->line, info->count);
+ "count = %d\n", info->line, info->port.count);
#endif
spin_lock_irqsave(&cinfo->card_lock, flags);
if (!tty_hung_up_p(filp))
- info->count--;
+ info->port.count--;
spin_unlock_irqrestore(&cinfo->card_lock, flags);
#ifdef CY_DEBUG_COUNT
printk(KERN_DEBUG "cyc block_til_ready: (%d): decrementing count to "
- "%d\n", current->pid, info->count);
+ "%d\n", current->pid, info->port.count);
#endif
- info->blocked_open++;
+ info->port.blocked_open++;

if (!IS_CYC_Z(*cinfo)) {
chip = channel >> 2;
@@ -2260,8 +2260,8 @@ block_til_ready(struct tty_struct *tty, struct file *filp,

set_current_state(TASK_INTERRUPTIBLE);
if (tty_hung_up_p(filp) ||
- !(info->flags & ASYNC_INITIALIZED)) {
- retval = ((info->flags & ASYNC_HUP_NOTIFY) ?
+ !(info->port.flags & ASYNC_INITIALIZED)) {
+ retval = ((info->port.flags & ASYNC_HUP_NOTIFY) ?
-EAGAIN : -ERESTARTSYS);
break;
}
@@ -2269,7 +2269,7 @@ block_til_ready(struct tty_struct *tty, struct file *filp,
spin_lock_irqsave(&cinfo->card_lock, flags);
cy_writeb(base_addr + (CyCAR << index),
(u_char) channel);
- if (!(info->flags & ASYNC_CLOSING) && (C_CLOCAL(tty) ||
+ if (!(info->port.flags & ASYNC_CLOSING) && (C_CLOCAL(tty) ||
(readb(base_addr +
(CyMSVR1 << index)) & CyDCD))) {
spin_unlock_irqrestore(&cinfo->card_lock, flags);
@@ -2284,7 +2284,7 @@ block_til_ready(struct tty_struct *tty, struct file *filp,
#ifdef CY_DEBUG_OPEN
printk(KERN_DEBUG "cyc block_til_ready blocking: "
"ttyC%d, count = %d\n",
- info->line, info->count);
+ info->line, info->port.count);
#endif
schedule();
}
@@ -2298,7 +2298,7 @@ block_til_ready(struct tty_struct *tty, struct file *filp,
firm_id = base_addr + ID_ADDRESS;
if (!ISZLOADED(*cinfo)) {
__set_current_state(TASK_RUNNING);
- remove_wait_queue(&info->open_wait, &wait);
+ remove_wait_queue(&info->port.open_wait, &wait);
return -EINVAL;
}

@@ -2327,12 +2327,12 @@ block_til_ready(struct tty_struct *tty, struct file *filp,

set_current_state(TASK_INTERRUPTIBLE);
if (tty_hung_up_p(filp) ||
- !(info->flags & ASYNC_INITIALIZED)) {
- retval = ((info->flags & ASYNC_HUP_NOTIFY) ?
+ !(info->port.flags & ASYNC_INITIALIZED)) {
+ retval = ((info->port.flags & ASYNC_HUP_NOTIFY) ?
-EAGAIN : -ERESTARTSYS);
break;
}
- if (!(info->flags & ASYNC_CLOSING) && (C_CLOCAL(tty) ||
+ if (!(info->port.flags & ASYNC_CLOSING) && (C_CLOCAL(tty) ||
(readl(&ch_ctrl[channel].rs_status) &
C_RS_DCD))) {
break;
@@ -2344,28 +2344,28 @@ block_til_ready(struct tty_struct *tty, struct file *filp,
#ifdef CY_DEBUG_OPEN
printk(KERN_DEBUG "cyc block_til_ready blocking: "
"ttyC%d, count = %d\n",
- info->line, info->count);
+ info->line, info->port.count);
#endif
schedule();
}
}
__set_current_state(TASK_RUNNING);
- remove_wait_queue(&info->open_wait, &wait);
+ remove_wait_queue(&info->port.open_wait, &wait);
if (!tty_hung_up_p(filp)) {
- info->count++;
+ info->port.count++;
#ifdef CY_DEBUG_COUNT
printk(KERN_DEBUG "cyc:block_til_ready (%d): incrementing "
- "count to %d\n", current->pid, info->count);
+ "count to %d\n", current->pid, info->port.count);
#endif
}
- info->blocked_open--;
+ info->port.blocked_open--;
#ifdef CY_DEBUG_OPEN
printk(KERN_DEBUG "cyc:block_til_ready after blocking: ttyC%d, "
- "count = %d\n", info->line, info->count);
+ "count = %d\n", info->line, info->port.count);
#endif
if (retval)
return retval;
- info->flags |= ASYNC_NORMAL_ACTIVE;
+ info->port.flags |= ASYNC_NORMAL_ACTIVE;
return 0;
} /* block_til_ready */

@@ -2456,27 +2456,27 @@ static int cy_open(struct tty_struct *tty, struct file *filp)
printk(KERN_DEBUG "cyc:cy_open ttyC%d\n", info->line);
#endif
tty->driver_data = info;
- info->tty = tty;
+ info->port.tty = tty;
if (serial_paranoia_check(info, tty->name, "cy_open"))
return -ENODEV;

#ifdef CY_DEBUG_OPEN
printk(KERN_DEBUG "cyc:cy_open ttyC%d, count = %d\n", info->line,
- info->count);
+ info->port.count);
#endif
- info->count++;
+ info->port.count++;
#ifdef CY_DEBUG_COUNT
printk(KERN_DEBUG "cyc:cy_open (%d): incrementing count to %d\n",
- current->pid, info->count);
+ current->pid, info->port.count);
#endif

/*
* If the port is the middle of closing, bail out now
*/
- if (tty_hung_up_p(filp) || (info->flags & ASYNC_CLOSING)) {
- wait_event_interruptible(info->close_wait,
- !(info->flags & ASYNC_CLOSING));
- return (info->flags & ASYNC_HUP_NOTIFY) ? -EAGAIN: -ERESTARTSYS;
+ if (tty_hung_up_p(filp) || (info->port.flags & ASYNC_CLOSING)) {
+ wait_event_interruptible(info->port.close_wait,
+ !(info->port.flags & ASYNC_CLOSING));
+ return (info->port.flags & ASYNC_HUP_NOTIFY) ? -EAGAIN: -ERESTARTSYS;
}

/*
@@ -2641,9 +2641,9 @@ static void cy_close(struct tty_struct *tty, struct file *filp)
}
#ifdef CY_DEBUG_OPEN
printk(KERN_DEBUG "cyc:cy_close ttyC%d, count = %d\n", info->line,
- info->count);
+ info->port.count);
#endif
- 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
@@ -2652,24 +2652,24 @@ static void cy_close(struct tty_struct *tty, struct file *filp)
* serial port won't be shutdown.
*/
printk(KERN_ERR "cyc:cy_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;
}
#ifdef CY_DEBUG_COUNT
printk(KERN_DEBUG "cyc:cy_close at (%d): decrementing count to %d\n",
- current->pid, info->count - 1);
+ current->pid, info->port.count - 1);
#endif
- if (--info->count < 0) {
+ if (--info->port.count < 0) {
#ifdef CY_DEBUG_COUNT
printk(KERN_DEBUG "cyc:cyc_close setting count to 0\n");
#endif
- info->count = 0;
+ info->port.count = 0;
}
- if (info->count) {
+ if (info->port.count) {
spin_unlock_irqrestore(&card->card_lock, flags);
return;
}
- info->flags |= ASYNC_CLOSING;
+ info->port.flags |= ASYNC_CLOSING;

/*
* Now we wait for the transmit buffer to clear; and we notify
@@ -2692,7 +2692,7 @@ static void cy_close(struct tty_struct *tty, struct file *filp)
cy_writeb(base_addr + (CyCAR << index), (u_char) channel);
cy_writeb(base_addr + (CySRER << index),
readb(base_addr + (CySRER << index)) & ~CyRxData);
- if (info->flags & ASYNC_INITIALIZED) {
+ if (info->port.flags & ASYNC_INITIALIZED) {
/* Waiting for on-board buffers to be empty before
closing the port */
spin_unlock_irqrestore(&card->card_lock, flags);
@@ -2731,18 +2731,18 @@ static void cy_close(struct tty_struct *tty, struct file *filp)
spin_lock_irqsave(&card->card_lock, flags);

tty->closing = 0;
- info->tty = NULL;
- if (info->blocked_open) {
+ info->port.tty = NULL;
+ if (info->port.blocked_open) {
spin_unlock_irqrestore(&card->card_lock, flags);
if (info->close_delay) {
msleep_interruptible(jiffies_to_msecs
(info->close_delay));
}
- wake_up_interruptible(&info->open_wait);
+ wake_up_interruptible(&info->port.open_wait);
spin_lock_irqsave(&card->card_lock, flags);
}
- info->flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING);
- wake_up_interruptible(&info->close_wait);
+ info->port.flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING);
+ wake_up_interruptible(&info->port.close_wait);

#ifdef CY_DEBUG_OTHER
printk(KERN_DEBUG "cyc:cy_close done\n");
@@ -2777,7 +2777,7 @@ static int cy_write(struct tty_struct *tty, const unsigned char *buf, int count)
if (serial_paranoia_check(info, tty->name, "cy_write"))
return 0;

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

spin_lock_irqsave(&info->card->card_lock, flags);
@@ -2788,7 +2788,7 @@ static int cy_write(struct tty_struct *tty, const unsigned char *buf, int count)
if (c <= 0)
break;

- memcpy(info->xmit_buf + info->xmit_head, buf, c);
+ memcpy(info->port.xmit_buf + info->xmit_head, buf, c);
info->xmit_head = (info->xmit_head + c) &
(SERIAL_XMIT_SIZE - 1);
info->xmit_cnt += c;
@@ -2826,7 +2826,7 @@ static int cy_put_char(struct tty_struct *tty, unsigned char ch)
if (serial_paranoia_check(info, tty->name, "cy_put_char"))
return 0;

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

spin_lock_irqsave(&info->card->card_lock, flags);
@@ -2835,7 +2835,7 @@ static int cy_put_char(struct tty_struct *tty, unsigned char ch)
return 0;
}

- 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++;
info->idle_stats.xmit_bytes++;
@@ -2860,7 +2860,7 @@ static void cy_flush_chars(struct tty_struct *tty)
return;

if (info->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped ||
- !info->xmit_buf)
+ !info->port.xmit_buf)
return;

start_xmit(info);
@@ -2988,27 +2988,27 @@ static void set_line_char(struct cyclades_port *info)
int baud, baud_rate = 0;
int i;

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

if (info->line == -1)
return;

- cflag = info->tty->termios->c_cflag;
- iflag = info->tty->termios->c_iflag;
+ cflag = info->port.tty->termios->c_cflag;
+ iflag = info->port.tty->termios->c_iflag;

/*
* Set up the tty->alt_speed kludge
*/
- if (info->tty) {
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
- info->tty->alt_speed = 57600;
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
- info->tty->alt_speed = 115200;
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
- info->tty->alt_speed = 230400;
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
- info->tty->alt_speed = 460800;
+ if (info->port.tty) {
+ if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
+ info->port.tty->alt_speed = 57600;
+ if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
+ info->port.tty->alt_speed = 115200;
+ if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
+ info->port.tty->alt_speed = 230400;
+ if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
+ info->port.tty->alt_speed = 460800;
}

card = info->card;
@@ -3020,8 +3020,8 @@ static void set_line_char(struct cyclades_port *info)
index = card->bus_index;

/* baud rate */
- baud = tty_get_baud_rate(info->tty);
- if (baud == 38400 && (info->flags & ASYNC_SPD_MASK) ==
+ baud = tty_get_baud_rate(info->port.tty);
+ if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) ==
ASYNC_SPD_CUST) {
if (info->custom_divisor)
baud_rate = info->baud / info->custom_divisor;
@@ -3038,7 +3038,7 @@ static void set_line_char(struct cyclades_port *info)
if (i == 20)
i = 19; /* CD1400_MAX_SPEED */

- if (baud == 38400 && (info->flags & ASYNC_SPD_MASK) ==
+ if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) ==
ASYNC_SPD_CUST) {
cyy_baud_calc(info, baud_rate);
} else {
@@ -3059,7 +3059,7 @@ static void set_line_char(struct cyclades_port *info)
/* get it right for 134.5 baud */
info->timeout = (info->xmit_fifo_size * HZ * 30 / 269) +
2;
- } else if (baud == 38400 && (info->flags & ASYNC_SPD_MASK) ==
+ } else if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) ==
ASYNC_SPD_CUST) {
info->timeout = (info->xmit_fifo_size * HZ * 15 /
baud_rate) + 2;
@@ -3108,16 +3108,16 @@ static void set_line_char(struct cyclades_port *info)

/* CTS flow control flag */
if (cflag & CRTSCTS) {
- info->flags |= ASYNC_CTS_FLOW;
+ info->port.flags |= ASYNC_CTS_FLOW;
info->cor2 |= CyCtsAE;
} else {
- info->flags &= ~ASYNC_CTS_FLOW;
+ info->port.flags &= ~ASYNC_CTS_FLOW;
info->cor2 &= ~CyCtsAE;
}
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;

/***********************************************
The hardware option, CyRtsAO, presents RTS when
@@ -3146,8 +3146,8 @@ static void set_line_char(struct cyclades_port *info)
/* set line characteristics according configuration */

cy_writeb(base_addr + (CySCHR1 << index),
- START_CHAR(info->tty));
- cy_writeb(base_addr + (CySCHR2 << index), STOP_CHAR(info->tty));
+ START_CHAR(info->port.tty));
+ cy_writeb(base_addr + (CySCHR2 << index), STOP_CHAR(info->port.tty));
cy_writeb(base_addr + (CyCOR1 << index), info->cor1);
cy_writeb(base_addr + (CyCOR2 << index), info->cor2);
cy_writeb(base_addr + (CyCOR3 << index), info->cor3);
@@ -3163,7 +3163,7 @@ static void set_line_char(struct cyclades_port *info)
(info->default_timeout ? info->default_timeout : 0x02));
/* 10ms rx timeout */

- if (C_CLOCAL(info->tty)) {
+ if (C_CLOCAL(info->port.tty)) {
/* without modem intr */
cy_writeb(base_addr + (CySRER << index),
readb(base_addr + (CySRER << index)) | CyMdmCh);
@@ -3226,8 +3226,8 @@ static void set_line_char(struct cyclades_port *info)
#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);
spin_unlock_irqrestore(&card->card_lock, flags);

} else {
@@ -3250,8 +3250,8 @@ static void set_line_char(struct cyclades_port *info)
buf_ctrl = &zfw_ctrl->buf_ctrl[channel];

/* baud rate */
- baud = tty_get_baud_rate(info->tty);
- if (baud == 38400 && (info->flags & ASYNC_SPD_MASK) ==
+ baud = tty_get_baud_rate(info->port.tty);
+ if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) ==
ASYNC_SPD_CUST) {
if (info->custom_divisor)
baud_rate = info->baud / info->custom_divisor;
@@ -3266,7 +3266,7 @@ static void set_line_char(struct cyclades_port *info)
/* get it right for 134.5 baud */
info->timeout = (info->xmit_fifo_size * HZ * 30 / 269) +
2;
- } else if (baud == 38400 && (info->flags & ASYNC_SPD_MASK) ==
+ } else if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) ==
ASYNC_SPD_CUST) {
info->timeout = (info->xmit_fifo_size * HZ * 15 /
baud_rate) + 2;
@@ -3318,7 +3318,7 @@ static void set_line_char(struct cyclades_port *info)
}
/* As the HW flow control is done in firmware, the driver
doesn't need to care about it */
- info->flags &= ~ASYNC_CTS_FLOW;
+ info->port.flags &= ~ASYNC_CTS_FLOW;

/* XON/XOFF/XANY flow control flags */
sw_flow = 0;
@@ -3337,9 +3337,9 @@ static void set_line_char(struct cyclades_port *info)

/* CD sensitivity */
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;

if (baud == 0) { /* baud rate is zero, turn off line */
cy_writel(&ch_ctrl->rs_control,
@@ -3361,8 +3361,8 @@ static void set_line_char(struct cyclades_port *info)
"was %x\n", info->line, retval);
}

- if (info->tty)
- clear_bit(TTY_IO_ERROR, &info->tty->flags);
+ if (info->port.tty)
+ clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
}
} /* set_line_char */

@@ -3381,7 +3381,7 @@ get_serial_info(struct cyclades_port *info,
tmp.port = (info->card - cy_card) * 0x100 + info->line -
cinfo->first_line;
tmp.irq = cinfo->irq;
- tmp.flags = info->flags;
+ tmp.flags = info->port.flags;
tmp.close_delay = info->close_delay;
tmp.closing_wait = info->closing_wait;
tmp.baud_base = info->baud;
@@ -3406,9 +3406,9 @@ set_serial_info(struct cyclades_port *info,
new_serial.baud_base != info->baud ||
(new_serial.flags & ASYNC_FLAGS &
~ASYNC_USR_MASK) !=
- (info->flags & ASYNC_FLAGS & ~ASYNC_USR_MASK))
+ (info->port.flags & ASYNC_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);
info->baud = new_serial.baud_base;
info->custom_divisor = new_serial.custom_divisor;
@@ -3422,13 +3422,13 @@ set_serial_info(struct cyclades_port *info,

info->baud = new_serial.baud_base;
info->custom_divisor = new_serial.custom_divisor;
- 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;

check_and_exit:
- if (info->flags & ASYNC_INITIALIZED) {
+ if (info->port.flags & ASYNC_INITIALIZED) {
set_line_char(info);
return 0;
} else {
@@ -4097,7 +4097,7 @@ static void cy_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
*/
if (!(old_termios->c_cflag & CLOCAL) &&
(tty->termios->c_cflag & CLOCAL))
- wake_up_interruptible(&info->open_wait);
+ wake_up_interruptible(&info->port.open_wait);
#endif
} /* cy_set_termios */

@@ -4326,14 +4326,14 @@ static void cy_hangup(struct tty_struct *tty)

cy_flush_buffer(tty);
shutdown(info);
- info->count = 0;
+ info->port.count = 0;
#ifdef CY_DEBUG_COUNT
printk(KERN_DEBUG "cyc:cy_hangup (%d): setting count to 0\n",
current->pid);
#endif
- info->tty = NULL;
- info->flags &= ~ASYNC_NORMAL_ACTIVE;
- wake_up_interruptible(&info->open_wait);
+ info->port.tty = NULL;
+ info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
+ wake_up_interruptible(&info->port.open_wait);
} /* cy_hangup */

/*
@@ -4379,12 +4379,11 @@ static int __devinit cy_init_card(struct cyclades_card *cinfo)
info->magic = CYCLADES_MAGIC;
info->card = cinfo;
info->line = port;
- info->flags = STD_COM_FLAGS;
info->closing_wait = CLOSING_WAIT_DELAY;
info->close_delay = 5 * HZ / 10;

- init_waitqueue_head(&info->open_wait);
- init_waitqueue_head(&info->close_wait);
+ tty_port_init(&info->port);
+ info->port.flags = STD_COM_FLAGS;
init_completion(&info->shutdown_wait);
init_waitqueue_head(&info->delta_msr_wait);

@@ -5237,7 +5236,7 @@ cyclades_get_proc_info(char *buf, char **start, off_t offset, int length,
for (j = 0; j < cy_card[i].nports; j++) {
info = &cy_card[i].ports[j];

- if (info->count)
+ if (info->port.count)
size = sprintf(buf + len, "%3d %8lu %10lu %8lu "
"%10lu %8lu %9lu %6ld\n", info->line,
(cur_jifs - info->idle_stats.in_use) /
@@ -5247,7 +5246,7 @@ cyclades_get_proc_info(char *buf, char **start, off_t offset, int length,
(cur_jifs - info->idle_stats.recv_idle)/
HZ, info->idle_stats.overruns,
/* FIXME: double check locking */
- (long)info->tty->ldisc.ops->num);
+ (long)info->port.tty->ldisc.ops->num);
else
size = sprintf(buf + len, "%3d %8lu %10lu %8lu "
"%10lu %8lu %9lu %6ld\n",
diff --git a/include/linux/cyclades.h b/include/linux/cyclades.h
index 504cb2c..a982b74 100644
--- a/include/linux/cyclades.h
+++ b/include/linux/cyclades.h
@@ -550,11 +550,11 @@ struct cyclades_icount {

struct cyclades_port {
int magic;
+ struct tty_port port;
struct cyclades_card *card;
int line;
int flags; /* defined in tty.h */
int type; /* UART type */
- struct tty_struct *tty;
int read_status_mask;
int ignore_status_mask;
int timeout;
@@ -569,11 +569,8 @@ struct cyclades_port {
u8 x_char; /* to be pushed out ASAP */
int close_delay;
unsigned short closing_wait;
- int count; /* # of fd on device */
int breakon;
int breakoff;
- int blocked_open; /* # of blocked opens */
- unsigned char *xmit_buf;
int xmit_head;
int xmit_tail;
int xmit_cnt;
@@ -583,8 +580,6 @@ struct cyclades_port {
struct cyclades_monitor mon;
struct cyclades_idle_stats idle_stats;
struct cyclades_icount icount;
- wait_queue_head_t open_wait;
- wait_queue_head_t close_wait;
struct completion shutdown_wait;
wait_queue_head_t delta_msr_wait;
int throttle;