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yaml
---
r: 247731
b: refs/heads/master
c: 8fb53b9
h: refs/heads/master
i:
  247729: e5582b7
  247727: 14d43f3
v: v3
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David S. Miller committed May 19, 2011
1 parent 608ac28 commit 4a81309
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Showing 2 changed files with 33 additions and 84 deletions.
2 changes: 1 addition & 1 deletion [refs]
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Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 43a5f002afc6f24891e57d31275f34e19a1a07d0
refs/heads/master: 8fb53b959bd9e503b646a3d68c7b1759667b6a19
115 changes: 32 additions & 83 deletions trunk/drivers/isdn/capi/capi.c
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Original file line number Diff line number Diff line change
Expand Up @@ -42,9 +42,6 @@ MODULE_DESCRIPTION("CAPI4Linux: Userspace /dev/capi20 interface");
MODULE_AUTHOR("Carsten Paeth");
MODULE_LICENSE("GPL");

#undef _DEBUG_TTYFUNCS /* call to tty_driver */
#undef _DEBUG_DATAFLOW /* data flow */

/* -------- driver information -------------------------------------- */

static DEFINE_MUTEX(capi_mutex);
Expand Down Expand Up @@ -418,9 +415,7 @@ static int handle_recv_skb(struct capiminor *mp, struct sk_buff *skb)

tty = tty_port_tty_get(&mp->port);
if (!tty) {
#ifdef _DEBUG_DATAFLOW
printk(KERN_DEBUG "capi: currently no receiver\n");
#endif
pr_debug("capi: currently no receiver\n");
return -1;
}

Expand All @@ -433,23 +428,17 @@ static int handle_recv_skb(struct capiminor *mp, struct sk_buff *skb)
}

if (ld->ops->receive_buf == NULL) {
#if defined(_DEBUG_DATAFLOW) || defined(_DEBUG_TTYFUNCS)
printk(KERN_DEBUG "capi: ldisc has no receive_buf function\n");
#endif
pr_debug("capi: ldisc has no receive_buf function\n");
/* fatal error, do not requeue */
goto free_skb;
}
if (mp->ttyinstop) {
#if defined(_DEBUG_DATAFLOW) || defined(_DEBUG_TTYFUNCS)
printk(KERN_DEBUG "capi: recv tty throttled\n");
#endif
pr_debug("capi: recv tty throttled\n");
goto deref_ldisc;
}

if (tty->receive_room < datalen) {
#if defined(_DEBUG_DATAFLOW) || defined(_DEBUG_TTYFUNCS)
printk(KERN_DEBUG "capi: no room in tty\n");
#endif
pr_debug("capi: no room in tty\n");
goto deref_ldisc;
}

Expand All @@ -465,10 +454,8 @@ static int handle_recv_skb(struct capiminor *mp, struct sk_buff *skb)

if (errcode == CAPI_NOERROR) {
skb_pull(skb, CAPIMSG_LEN(skb->data));
#ifdef _DEBUG_DATAFLOW
printk(KERN_DEBUG "capi: DATA_B3_RESP %u len=%d => ldisc\n",
datahandle, skb->len);
#endif
pr_debug("capi: DATA_B3_RESP %u len=%d => ldisc\n",
datahandle, skb->len);
ld->ops->receive_buf(tty, skb->data, NULL, skb->len);
} else {
printk(KERN_ERR "capi: send DATA_B3_RESP failed=%x\n",
Expand Down Expand Up @@ -515,9 +502,7 @@ static void handle_minor_send(struct capiminor *mp)
return;

if (mp->ttyoutstop) {
#if defined(_DEBUG_DATAFLOW) || defined(_DEBUG_TTYFUNCS)
printk(KERN_DEBUG "capi: send: tty stopped\n");
#endif
pr_debug("capi: send: tty stopped\n");
tty_kref_put(tty);
return;
}
Expand Down Expand Up @@ -559,10 +544,8 @@ static void handle_minor_send(struct capiminor *mp)
}
errcode = capi20_put_message(mp->ap, skb);
if (errcode == CAPI_NOERROR) {
#ifdef _DEBUG_DATAFLOW
printk(KERN_DEBUG "capi: DATA_B3_REQ %u len=%u\n",
datahandle, len);
#endif
pr_debug("capi: DATA_B3_REQ %u len=%u\n",
datahandle, len);
continue;
}
capiminor_del_ack(mp, datahandle);
Expand Down Expand Up @@ -636,22 +619,18 @@ static void capi_recv_message(struct capi20_appl *ap, struct sk_buff *skb)
}
if (CAPIMSG_SUBCOMMAND(skb->data) == CAPI_IND) {
datahandle = CAPIMSG_U16(skb->data, CAPIMSG_BASELEN+4+4+2);
#ifdef _DEBUG_DATAFLOW
printk(KERN_DEBUG "capi_signal: DATA_B3_IND %u len=%d\n",
datahandle, skb->len-CAPIMSG_LEN(skb->data));
#endif
pr_debug("capi_signal: DATA_B3_IND %u len=%d\n",
datahandle, skb->len-CAPIMSG_LEN(skb->data));
skb_queue_tail(&mp->inqueue, skb);

handle_minor_recv(mp);

} else if (CAPIMSG_SUBCOMMAND(skb->data) == CAPI_CONF) {

datahandle = CAPIMSG_U16(skb->data, CAPIMSG_BASELEN+4);
#ifdef _DEBUG_DATAFLOW
printk(KERN_DEBUG "capi_signal: DATA_B3_CONF %u 0x%x\n",
datahandle,
CAPIMSG_U16(skb->data, CAPIMSG_BASELEN+4+2));
#endif
pr_debug("capi_signal: DATA_B3_CONF %u 0x%x\n",
datahandle,
CAPIMSG_U16(skb->data, CAPIMSG_BASELEN+4+2));
kfree_skb(skb);
capiminor_del_ack(mp, datahandle);
tty = tty_port_tty_get(&mp->port);
Expand Down Expand Up @@ -1081,9 +1060,7 @@ static int capinc_tty_write(struct tty_struct *tty,
struct capiminor *mp = tty->driver_data;
struct sk_buff *skb;

#ifdef _DEBUG_TTYFUNCS
printk(KERN_DEBUG "capinc_tty_write(count=%d)\n", count);
#endif
pr_debug("capinc_tty_write(count=%d)\n", count);

spin_lock_bh(&mp->outlock);
skb = mp->outskb;
Expand Down Expand Up @@ -1119,9 +1096,7 @@ static int capinc_tty_put_char(struct tty_struct *tty, unsigned char ch)
struct sk_buff *skb;
int ret = 1;

#ifdef _DEBUG_TTYFUNCS
printk(KERN_DEBUG "capinc_put_char(%u)\n", ch);
#endif
pr_debug("capinc_put_char(%u)\n", ch);

spin_lock_bh(&mp->outlock);
skb = mp->outskb;
Expand Down Expand Up @@ -1160,9 +1135,7 @@ static void capinc_tty_flush_chars(struct tty_struct *tty)
struct capiminor *mp = tty->driver_data;
struct sk_buff *skb;

#ifdef _DEBUG_TTYFUNCS
printk(KERN_DEBUG "capinc_tty_flush_chars\n");
#endif
pr_debug("capinc_tty_flush_chars\n");

spin_lock_bh(&mp->outlock);
skb = mp->outskb;
Expand All @@ -1186,22 +1159,18 @@ static int capinc_tty_write_room(struct tty_struct *tty)

room = CAPINC_MAX_SENDQUEUE-skb_queue_len(&mp->outqueue);
room *= CAPI_MAX_BLKSIZE;
#ifdef _DEBUG_TTYFUNCS
printk(KERN_DEBUG "capinc_tty_write_room = %d\n", room);
#endif
pr_debug("capinc_tty_write_room = %d\n", room);
return room;
}

static int capinc_tty_chars_in_buffer(struct tty_struct *tty)
{
struct capiminor *mp = tty->driver_data;

#ifdef _DEBUG_TTYFUNCS
printk(KERN_DEBUG "capinc_tty_chars_in_buffer = %d nack=%d sq=%d rq=%d\n",
mp->outbytes, mp->nack,
skb_queue_len(&mp->outqueue),
skb_queue_len(&mp->inqueue));
#endif
pr_debug("capinc_tty_chars_in_buffer = %d nack=%d sq=%d rq=%d\n",
mp->outbytes, mp->nack,
skb_queue_len(&mp->outqueue),
skb_queue_len(&mp->inqueue));
return mp->outbytes;
}

Expand All @@ -1213,27 +1182,21 @@ static int capinc_tty_ioctl(struct tty_struct *tty,

static void capinc_tty_set_termios(struct tty_struct *tty, struct ktermios * old)
{
#ifdef _DEBUG_TTYFUNCS
printk(KERN_DEBUG "capinc_tty_set_termios\n");
#endif
pr_debug("capinc_tty_set_termios\n");
}

static void capinc_tty_throttle(struct tty_struct *tty)
{
struct capiminor *mp = tty->driver_data;
#ifdef _DEBUG_TTYFUNCS
printk(KERN_DEBUG "capinc_tty_throttle\n");
#endif
pr_debug("capinc_tty_throttle\n");
mp->ttyinstop = 1;
}

static void capinc_tty_unthrottle(struct tty_struct *tty)
{
struct capiminor *mp = tty->driver_data;

#ifdef _DEBUG_TTYFUNCS
printk(KERN_DEBUG "capinc_tty_unthrottle\n");
#endif
pr_debug("capinc_tty_unthrottle\n");
mp->ttyinstop = 0;
handle_minor_recv(mp);
}
Expand All @@ -1242,19 +1205,15 @@ static void capinc_tty_stop(struct tty_struct *tty)
{
struct capiminor *mp = tty->driver_data;

#ifdef _DEBUG_TTYFUNCS
printk(KERN_DEBUG "capinc_tty_stop\n");
#endif
pr_debug("capinc_tty_stop\n");
mp->ttyoutstop = 1;
}

static void capinc_tty_start(struct tty_struct *tty)
{
struct capiminor *mp = tty->driver_data;

#ifdef _DEBUG_TTYFUNCS
printk(KERN_DEBUG "capinc_tty_start\n");
#endif
pr_debug("capinc_tty_start\n");
mp->ttyoutstop = 0;
handle_minor_send(mp);
}
Expand All @@ -1263,39 +1222,29 @@ static void capinc_tty_hangup(struct tty_struct *tty)
{
struct capiminor *mp = tty->driver_data;

#ifdef _DEBUG_TTYFUNCS
printk(KERN_DEBUG "capinc_tty_hangup\n");
#endif
pr_debug("capinc_tty_hangup\n");
tty_port_hangup(&mp->port);
}

static int capinc_tty_break_ctl(struct tty_struct *tty, int state)
{
#ifdef _DEBUG_TTYFUNCS
printk(KERN_DEBUG "capinc_tty_break_ctl(%d)\n", state);
#endif
pr_debug("capinc_tty_break_ctl(%d)\n", state);
return 0;
}

static void capinc_tty_flush_buffer(struct tty_struct *tty)
{
#ifdef _DEBUG_TTYFUNCS
printk(KERN_DEBUG "capinc_tty_flush_buffer\n");
#endif
pr_debug("capinc_tty_flush_buffer\n");
}

static void capinc_tty_set_ldisc(struct tty_struct *tty)
{
#ifdef _DEBUG_TTYFUNCS
printk(KERN_DEBUG "capinc_tty_set_ldisc\n");
#endif
pr_debug("capinc_tty_set_ldisc\n");
}

static void capinc_tty_send_xchar(struct tty_struct *tty, char ch)
{
#ifdef _DEBUG_TTYFUNCS
printk(KERN_DEBUG "capinc_tty_send_xchar(%d)\n", ch);
#endif
pr_debug("capinc_tty_send_xchar(%d)\n", ch);
}

static const struct tty_operations capinc_ops = {
Expand Down

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