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yaml
---
r: 83922
b: refs/heads/master
c: ccfea3c
h: refs/heads/master
v: v3
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Jiri Slaby authored and Linus Torvalds committed Feb 7, 2008
1 parent 9f64efb commit df2240c
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Showing 3 changed files with 25 additions and 46 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: d0d4e1c098754bfbb2aeb94333756d63d255688e
refs/heads/master: ccfea3c98a10b9d4d49b899616a06594ec976d7d
68 changes: 24 additions & 44 deletions trunk/drivers/char/stallion.c
Original file line number Diff line number Diff line change
Expand Up @@ -145,8 +145,7 @@ static struct stlbrd *stl_brds[STL_MAXBRDS];
*/
#define ASYI_TXBUSY 1
#define ASYI_TXLOW 2
#define ASYI_DCDCHANGE 3
#define ASYI_TXFLOWED 4
#define ASYI_TXFLOWED 3

/*
* Define an array of board names as printable strings. Handy for
Expand Down Expand Up @@ -610,6 +609,23 @@ static const struct file_operations stl_fsiomem = {

static struct class *stallion_class;

static void stl_cd_change(struct stlport *portp)
{
unsigned int oldsigs = portp->sigs;

if (!portp->tty)
return;

portp->sigs = stl_getsignals(portp);

if ((portp->sigs & TIOCM_CD) && ((oldsigs & TIOCM_CD) == 0))
wake_up_interruptible(&portp->open_wait);

if ((oldsigs & TIOCM_CD) && ((portp->sigs & TIOCM_CD) == 0))
if (portp->flags & ASYNC_CHECK_CD)
tty_hangup(portp->tty);
}

/*
* Check for any arguments passed in on the module load command line.
*/
Expand Down Expand Up @@ -1770,41 +1786,6 @@ static int stl_echpci64intr(struct stlbrd *brdp)

/*****************************************************************************/

/*
* Service an off-level request for some channel.
*/
static void stl_offintr(struct work_struct *work)
{
struct stlport *portp = container_of(work, struct stlport, tqueue);
struct tty_struct *tty;
unsigned int oldsigs;

pr_debug("stl_offintr(portp=%p)\n", portp);

if (portp == NULL)
return;

tty = portp->tty;
if (tty == NULL)
return;

if (test_bit(ASYI_TXLOW, &portp->istate))
tty_wakeup(tty);

if (test_bit(ASYI_DCDCHANGE, &portp->istate)) {
clear_bit(ASYI_DCDCHANGE, &portp->istate);
oldsigs = portp->sigs;
portp->sigs = stl_getsignals(portp);
if ((portp->sigs & TIOCM_CD) && ((oldsigs & TIOCM_CD) == 0))
wake_up_interruptible(&portp->open_wait);
if ((oldsigs & TIOCM_CD) && ((portp->sigs & TIOCM_CD) == 0))
if (portp->flags & ASYNC_CHECK_CD)
tty_hangup(tty); /* FIXME: module removal race here - AKPM */
}
}

/*****************************************************************************/

/*
* Initialize all the ports on a panel.
*/
Expand Down Expand Up @@ -1840,7 +1821,6 @@ static int __devinit stl_initports(struct stlbrd *brdp, struct stlpanel *panelp)
portp->baud_base = STL_BAUDBASE;
portp->close_delay = STL_CLOSEDELAY;
portp->closing_wait = 30 * HZ;
INIT_WORK(&portp->tqueue, stl_offintr);
init_waitqueue_head(&portp->open_wait);
init_waitqueue_head(&portp->close_wait);
portp->stats.brd = portp->brdnr;
Expand Down Expand Up @@ -3530,7 +3510,8 @@ static void stl_cd1400txisr(struct stlpanel *panelp, int ioaddr)
if ((len == 0) || ((len < STL_TXBUFLOW) &&
(test_bit(ASYI_TXLOW, &portp->istate) == 0))) {
set_bit(ASYI_TXLOW, &portp->istate);
schedule_work(&portp->tqueue);
if (portp->tty)
tty_wakeup(portp->tty);
}

if (len == 0) {
Expand Down Expand Up @@ -3693,8 +3674,7 @@ static void stl_cd1400mdmisr(struct stlpanel *panelp, int ioaddr)
outb((MISR + portp->uartaddr), ioaddr);
misr = inb(ioaddr + EREG_DATA);
if (misr & MISR_DCD) {
set_bit(ASYI_DCDCHANGE, &portp->istate);
schedule_work(&portp->tqueue);
stl_cd_change(portp);
portp->stats.modem++;
}

Expand Down Expand Up @@ -4448,7 +4428,8 @@ static void stl_sc26198txisr(struct stlport *portp)
if ((len == 0) || ((len < STL_TXBUFLOW) &&
(test_bit(ASYI_TXLOW, &portp->istate) == 0))) {
set_bit(ASYI_TXLOW, &portp->istate);
schedule_work(&portp->tqueue);
if (portp->tty)
tty_wakeup(portp->tty);
}

if (len == 0) {
Expand Down Expand Up @@ -4649,8 +4630,7 @@ static void stl_sc26198otherisr(struct stlport *portp, unsigned int iack)
case CIR_SUBCOS:
ipr = stl_sc26198getreg(portp, IPR);
if (ipr & IPR_DCDCHANGE) {
set_bit(ASYI_DCDCHANGE, &portp->istate);
schedule_work(&portp->tqueue);
stl_cd_change(portp);
portp->stats.modem++;
}
break;
Expand Down
1 change: 0 additions & 1 deletion trunk/include/linux/stallion.h
Original file line number Diff line number Diff line change
Expand Up @@ -95,7 +95,6 @@ struct stlport {
struct tty_struct *tty;
wait_queue_head_t open_wait;
wait_queue_head_t close_wait;
struct work_struct tqueue;
comstats_t stats;
struct stlrq tx;
};
Expand Down

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