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Diffstat (limited to 'net/irda/ircomm/ircomm_tty_attach.c')
-rw-r--r--net/irda/ircomm/ircomm_tty_attach.c125
1 files changed, 69 insertions, 56 deletions
diff --git a/net/irda/ircomm/ircomm_tty_attach.c b/net/irda/ircomm/ircomm_tty_attach.c
index b5a13882c92..2ee87bf387c 100644
--- a/net/irda/ircomm/ircomm_tty_attach.c
+++ b/net/irda/ircomm/ircomm_tty_attach.c
@@ -23,13 +23,12 @@
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
*
********************************************************************/
#include <linux/init.h>
+#include <linux/sched.h>
#include <net/irda/irda.h>
#include <net/irda/irlmp.h>
@@ -80,7 +79,7 @@ static int ircomm_tty_state_ready(struct ircomm_tty_cb *self,
struct sk_buff *skb,
struct ircomm_tty_info *info);
-char *ircomm_tty_state[] = {
+const char *const ircomm_tty_state[] = {
"IRCOMM_TTY_IDLE",
"IRCOMM_TTY_SEARCH",
"IRCOMM_TTY_QUERY_PARAMETERS",
@@ -91,7 +90,7 @@ char *ircomm_tty_state[] = {
};
#ifdef CONFIG_IRDA_DEBUG
-static char *ircomm_tty_event[] = {
+static const char *const ircomm_tty_event[] = {
"IRCOMM_TTY_ATTACH_CABLE",
"IRCOMM_TTY_DETACH_CABLE",
"IRCOMM_TTY_DATA_REQUEST",
@@ -129,19 +128,25 @@ static int (*state[])(struct ircomm_tty_cb *self, IRCOMM_TTY_EVENT event,
*/
int ircomm_tty_attach_cable(struct ircomm_tty_cb *self)
{
- IRDA_DEBUG(0, "%s()\n", __FUNCTION__ );
+ struct tty_struct *tty;
+
+ IRDA_DEBUG(0, "%s()\n", __func__ );
IRDA_ASSERT(self != NULL, return -1;);
IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return -1;);
/* Check if somebody has already connected to us */
if (ircomm_is_connected(self->ircomm)) {
- IRDA_DEBUG(0, "%s(), already connected!\n", __FUNCTION__ );
+ IRDA_DEBUG(0, "%s(), already connected!\n", __func__ );
return 0;
}
/* Make sure nobody tries to write before the link is up */
- self->tty->hw_stopped = 1;
+ tty = tty_port_tty_get(&self->port);
+ if (tty) {
+ tty->hw_stopped = 1;
+ tty_kref_put(tty);
+ }
ircomm_tty_ias_register(self);
@@ -158,7 +163,7 @@ int ircomm_tty_attach_cable(struct ircomm_tty_cb *self)
*/
void ircomm_tty_detach_cable(struct ircomm_tty_cb *self)
{
- IRDA_DEBUG(0, "%s()\n", __FUNCTION__ );
+ IRDA_DEBUG(0, "%s()\n", __func__ );
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
@@ -207,7 +212,7 @@ static void ircomm_tty_ias_register(struct ircomm_tty_cb *self)
__u8 oct_seq[6];
__u16 hints;
- IRDA_DEBUG(0, "%s()\n", __FUNCTION__ );
+ IRDA_DEBUG(0, "%s()\n", __func__ );
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
@@ -308,16 +313,16 @@ int ircomm_tty_send_initial_parameters(struct ircomm_tty_cb *self)
* Set default values, but only if the application for some reason
* haven't set them already
*/
- IRDA_DEBUG(2, "%s(), data-rate = %d\n", __FUNCTION__ ,
+ IRDA_DEBUG(2, "%s(), data-rate = %d\n", __func__ ,
self->settings.data_rate);
if (!self->settings.data_rate)
self->settings.data_rate = 9600;
- IRDA_DEBUG(2, "%s(), data-format = %d\n", __FUNCTION__ ,
+ IRDA_DEBUG(2, "%s(), data-format = %d\n", __func__ ,
self->settings.data_format);
if (!self->settings.data_format)
self->settings.data_format = IRCOMM_WSIZE_8; /* 8N1 */
- IRDA_DEBUG(2, "%s(), flow-control = %d\n", __FUNCTION__ ,
+ IRDA_DEBUG(2, "%s(), flow-control = %d\n", __func__ ,
self->settings.flow_control);
/*self->settings.flow_control = IRCOMM_RTS_CTS_IN|IRCOMM_RTS_CTS_OUT;*/
@@ -362,7 +367,7 @@ static void ircomm_tty_discovery_indication(discinfo_t *discovery,
struct ircomm_tty_cb *self;
struct ircomm_tty_info info;
- IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+ IRDA_DEBUG(2, "%s()\n", __func__ );
/* Important note :
* We need to drop all passive discoveries.
@@ -381,7 +386,7 @@ static void ircomm_tty_discovery_indication(discinfo_t *discovery,
info.daddr = discovery->daddr;
info.saddr = discovery->saddr;
- self = (struct ircomm_tty_cb *) priv;
+ self = priv;
ircomm_tty_do_event(self, IRCOMM_TTY_DISCOVERY_INDICATION,
NULL, &info);
}
@@ -397,23 +402,26 @@ void ircomm_tty_disconnect_indication(void *instance, void *sap,
struct sk_buff *skb)
{
struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) instance;
+ struct tty_struct *tty;
- IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+ IRDA_DEBUG(2, "%s()\n", __func__ );
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
- if (!self->tty)
+ tty = tty_port_tty_get(&self->port);
+ if (!tty)
return;
/* This will stop control data transfers */
self->flow = FLOW_STOP;
/* Stop data transfers */
- self->tty->hw_stopped = 1;
+ tty->hw_stopped = 1;
ircomm_tty_do_event(self, IRCOMM_TTY_DISCONNECT_INDICATION, NULL,
NULL);
+ tty_kref_put(tty);
}
/*
@@ -428,7 +436,7 @@ static void ircomm_tty_getvalue_confirm(int result, __u16 obj_id,
{
struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) priv;
- IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+ IRDA_DEBUG(2, "%s()\n", __func__ );
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
@@ -439,13 +447,13 @@ static void ircomm_tty_getvalue_confirm(int result, __u16 obj_id,
/* Check if request succeeded */
if (result != IAS_SUCCESS) {
- IRDA_DEBUG(4, "%s(), got NULL value!\n", __FUNCTION__ );
+ IRDA_DEBUG(4, "%s(), got NULL value!\n", __func__ );
return;
}
switch (value->type) {
case IAS_OCT_SEQ:
- IRDA_DEBUG(2, "%s(), got octet sequence\n", __FUNCTION__ );
+ IRDA_DEBUG(2, "%s(), got octet sequence\n", __func__ );
irda_param_extract_all(self, value->t.oct_seq, value->len,
&ircomm_param_info);
@@ -455,21 +463,21 @@ static void ircomm_tty_getvalue_confirm(int result, __u16 obj_id,
break;
case IAS_INTEGER:
/* Got LSAP selector */
- IRDA_DEBUG(2, "%s(), got lsapsel = %d\n", __FUNCTION__ ,
+ IRDA_DEBUG(2, "%s(), got lsapsel = %d\n", __func__ ,
value->t.integer);
if (value->t.integer == -1) {
- IRDA_DEBUG(0, "%s(), invalid value!\n", __FUNCTION__ );
+ IRDA_DEBUG(0, "%s(), invalid value!\n", __func__ );
} else
self->dlsap_sel = value->t.integer;
ircomm_tty_do_event(self, IRCOMM_TTY_GOT_LSAPSEL, NULL, NULL);
break;
case IAS_MISSING:
- IRDA_DEBUG(0, "%s(), got IAS_MISSING\n", __FUNCTION__ );
+ IRDA_DEBUG(0, "%s(), got IAS_MISSING\n", __func__ );
break;
default:
- IRDA_DEBUG(0, "%s(), got unknown type!\n", __FUNCTION__ );
+ IRDA_DEBUG(0, "%s(), got unknown type!\n", __func__ );
break;
}
irias_delete_value(value);
@@ -489,7 +497,7 @@ void ircomm_tty_connect_confirm(void *instance, void *sap,
{
struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) instance;
- IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+ IRDA_DEBUG(2, "%s()\n", __func__ );
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
@@ -520,7 +528,7 @@ void ircomm_tty_connect_indication(void *instance, void *sap,
struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) instance;
int clen;
- IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+ IRDA_DEBUG(2, "%s()\n", __func__ );
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
@@ -549,12 +557,15 @@ void ircomm_tty_connect_indication(void *instance, void *sap,
*/
void ircomm_tty_link_established(struct ircomm_tty_cb *self)
{
- IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+ struct tty_struct *tty;
+
+ IRDA_DEBUG(2, "%s()\n", __func__ );
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
- if (!self->tty)
+ tty = tty_port_tty_get(&self->port);
+ if (!tty)
return;
del_timer(&self->watchdog_timer);
@@ -565,19 +576,22 @@ void ircomm_tty_link_established(struct ircomm_tty_cb *self)
* will have to wait for the peer device (DCE) to raise the CTS
* line.
*/
- if ((self->flags & ASYNC_CTS_FLOW) && ((self->settings.dce & IRCOMM_CTS) == 0)) {
- IRDA_DEBUG(0, "%s(), waiting for CTS ...\n", __FUNCTION__ );
- return;
+ if (tty_port_cts_enabled(&self->port) &&
+ ((self->settings.dce & IRCOMM_CTS) == 0)) {
+ IRDA_DEBUG(0, "%s(), waiting for CTS ...\n", __func__ );
+ goto put;
} else {
- IRDA_DEBUG(1, "%s(), starting hardware!\n", __FUNCTION__ );
+ IRDA_DEBUG(1, "%s(), starting hardware!\n", __func__ );
- self->tty->hw_stopped = 0;
+ tty->hw_stopped = 0;
/* Wake up processes blocked on open */
- wake_up_interruptible(&self->open_wait);
+ wake_up_interruptible(&self->port.open_wait);
}
schedule_work(&self->tqueue);
+put:
+ tty_kref_put(tty);
}
/*
@@ -607,7 +621,7 @@ static void ircomm_tty_watchdog_timer_expired(void *data)
{
struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) data;
- IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+ IRDA_DEBUG(2, "%s()\n", __func__ );
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
@@ -628,7 +642,7 @@ int ircomm_tty_do_event(struct ircomm_tty_cb *self, IRCOMM_TTY_EVENT event,
IRDA_ASSERT(self != NULL, return -1;);
IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return -1;);
- IRDA_DEBUG(2, "%s: state=%s, event=%s\n", __FUNCTION__ ,
+ IRDA_DEBUG(2, "%s: state=%s, event=%s\n", __func__ ,
ircomm_tty_state[self->state], ircomm_tty_event[event]);
return (*state[self->state])(self, event, skb, info);
@@ -646,7 +660,7 @@ static inline void ircomm_tty_next_state(struct ircomm_tty_cb *self, IRCOMM_TTY_
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
- IRDA_DEBUG(2, "%s: next state=%s, service type=%d\n", __FUNCTION__ ,
+ IRDA_DEBUG(2, "%s: next state=%s, service type=%d\n", __func__ ,
ircomm_tty_state[self->state], self->service_type);
*/
self->state = state;
@@ -665,7 +679,7 @@ static int ircomm_tty_state_idle(struct ircomm_tty_cb *self,
{
int ret = 0;
- IRDA_DEBUG(2, "%s: state=%s, event=%s\n", __FUNCTION__ ,
+ IRDA_DEBUG(2, "%s: state=%s, event=%s\n", __func__ ,
ircomm_tty_state[self->state], ircomm_tty_event[event]);
switch (event) {
case IRCOMM_TTY_ATTACH_CABLE:
@@ -681,7 +695,7 @@ static int ircomm_tty_state_idle(struct ircomm_tty_cb *self,
if (self->iriap) {
IRDA_WARNING("%s(), busy with a previous query\n",
- __FUNCTION__);
+ __func__);
return -EBUSY;
}
@@ -709,7 +723,7 @@ static int ircomm_tty_state_idle(struct ircomm_tty_cb *self,
ircomm_tty_next_state(self, IRCOMM_TTY_IDLE);
break;
default:
- IRDA_DEBUG(2, "%s(), unknown event: %s\n", __FUNCTION__ ,
+ IRDA_DEBUG(2, "%s(), unknown event: %s\n", __func__ ,
ircomm_tty_event[event]);
ret = -EINVAL;
}
@@ -729,7 +743,7 @@ static int ircomm_tty_state_search(struct ircomm_tty_cb *self,
{
int ret = 0;
- IRDA_DEBUG(2, "%s: state=%s, event=%s\n", __FUNCTION__ ,
+ IRDA_DEBUG(2, "%s: state=%s, event=%s\n", __func__ ,
ircomm_tty_state[self->state], ircomm_tty_event[event]);
switch (event) {
@@ -739,7 +753,7 @@ static int ircomm_tty_state_search(struct ircomm_tty_cb *self,
if (self->iriap) {
IRDA_WARNING("%s(), busy with a previous query\n",
- __FUNCTION__);
+ __func__);
return -EBUSY;
}
@@ -782,7 +796,7 @@ static int ircomm_tty_state_search(struct ircomm_tty_cb *self,
ircomm_tty_next_state(self, IRCOMM_TTY_IDLE);
break;
default:
- IRDA_DEBUG(2, "%s(), unknown event: %s\n", __FUNCTION__ ,
+ IRDA_DEBUG(2, "%s(), unknown event: %s\n", __func__ ,
ircomm_tty_event[event]);
ret = -EINVAL;
}
@@ -802,14 +816,14 @@ static int ircomm_tty_state_query_parameters(struct ircomm_tty_cb *self,
{
int ret = 0;
- IRDA_DEBUG(2, "%s: state=%s, event=%s\n", __FUNCTION__ ,
+ IRDA_DEBUG(2, "%s: state=%s, event=%s\n", __func__ ,
ircomm_tty_state[self->state], ircomm_tty_event[event]);
switch (event) {
case IRCOMM_TTY_GOT_PARAMETERS:
if (self->iriap) {
IRDA_WARNING("%s(), busy with a previous query\n",
- __FUNCTION__);
+ __func__);
return -EBUSY;
}
@@ -840,7 +854,7 @@ static int ircomm_tty_state_query_parameters(struct ircomm_tty_cb *self,
ircomm_tty_next_state(self, IRCOMM_TTY_IDLE);
break;
default:
- IRDA_DEBUG(2, "%s(), unknown event: %s\n", __FUNCTION__ ,
+ IRDA_DEBUG(2, "%s(), unknown event: %s\n", __func__ ,
ircomm_tty_event[event]);
ret = -EINVAL;
}
@@ -860,7 +874,7 @@ static int ircomm_tty_state_query_lsap_sel(struct ircomm_tty_cb *self,
{
int ret = 0;
- IRDA_DEBUG(2, "%s: state=%s, event=%s\n", __FUNCTION__ ,
+ IRDA_DEBUG(2, "%s: state=%s, event=%s\n", __func__ ,
ircomm_tty_state[self->state], ircomm_tty_event[event]);
switch (event) {
@@ -889,7 +903,7 @@ static int ircomm_tty_state_query_lsap_sel(struct ircomm_tty_cb *self,
ircomm_tty_next_state(self, IRCOMM_TTY_IDLE);
break;
default:
- IRDA_DEBUG(2, "%s(), unknown event: %s\n", __FUNCTION__ ,
+ IRDA_DEBUG(2, "%s(), unknown event: %s\n", __func__ ,
ircomm_tty_event[event]);
ret = -EINVAL;
}
@@ -909,7 +923,7 @@ static int ircomm_tty_state_setup(struct ircomm_tty_cb *self,
{
int ret = 0;
- IRDA_DEBUG(2, "%s: state=%s, event=%s\n", __FUNCTION__ ,
+ IRDA_DEBUG(2, "%s: state=%s, event=%s\n", __func__ ,
ircomm_tty_state[self->state], ircomm_tty_event[event]);
switch (event) {
@@ -943,7 +957,7 @@ static int ircomm_tty_state_setup(struct ircomm_tty_cb *self,
ircomm_tty_next_state(self, IRCOMM_TTY_IDLE);
break;
default:
- IRDA_DEBUG(2, "%s(), unknown event: %s\n", __FUNCTION__ ,
+ IRDA_DEBUG(2, "%s(), unknown event: %s\n", __func__ ,
ircomm_tty_event[event]);
ret = -EINVAL;
}
@@ -976,18 +990,17 @@ static int ircomm_tty_state_ready(struct ircomm_tty_cb *self,
ircomm_tty_next_state(self, IRCOMM_TTY_SEARCH);
ircomm_tty_start_watchdog_timer(self, 3*HZ);
- if (self->flags & ASYNC_CHECK_CD) {
+ if (self->port.flags & ASYNC_CHECK_CD) {
/* Drop carrier */
self->settings.dce = IRCOMM_DELTA_CD;
ircomm_tty_check_modem_status(self);
} else {
- IRDA_DEBUG(0, "%s(), hanging up!\n", __FUNCTION__ );
- if (self->tty)
- tty_hangup(self->tty);
+ IRDA_DEBUG(0, "%s(), hanging up!\n", __func__ );
+ tty_port_tty_hangup(&self->port, false);
}
break;
default:
- IRDA_DEBUG(2, "%s(), unknown event: %s\n", __FUNCTION__ ,
+ IRDA_DEBUG(2, "%s(), unknown event: %s\n", __func__ ,
ircomm_tty_event[event]);
ret = -EINVAL;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 17:29:02 +0000