Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=ea63d0b11ebb296b3daca4fcb74931604ee3ce78
Commit: ea63d0b11ebb296b3daca4fcb74931604ee3ce78
Parent: c458473ebf31755373ca2f8063c9ec9744205924
Author: Maxim Levitsky <[EMAIL PROTECTED]>
AuthorDate: Sat Oct 13 05:35:33 2007 -0300
Committer: Mauro Carvalho Chehab <[EMAIL PROTECTED]>
CommitDate: Mon Oct 22 12:01:41 2007 -0200
V4L/DVB (6330): V4L: saa7134: Fix interaction between tvaudio thread and
the freezer
make tvaudio thread freezeable, and add proper support for that
Signed-off-by: Maxim Levitsky <[EMAIL PROTECTED]>
Signed-off-by: Mauro Carvalho Chehab <[EMAIL PROTECTED]>
---
drivers/media/video/saa7134/saa7134-tvaudio.c | 30 +++++++++++++++++++-----
drivers/media/video/saa7134/saa7134.h | 1 +
2 files changed, 24 insertions(+), 7 deletions(-)
diff --git a/drivers/media/video/saa7134/saa7134-tvaudio.c
b/drivers/media/video/saa7134/saa7134-tvaudio.c
index 976318d..f8e304c 100644
--- a/drivers/media/video/saa7134/saa7134-tvaudio.c
+++ b/drivers/media/video/saa7134/saa7134-tvaudio.c
@@ -27,6 +27,7 @@
#include <linux/kthread.h>
#include <linux/slab.h>
#include <linux/delay.h>
+#include <linux/freezer.h>
#include <asm/div64.h>
#include "saa7134-reg.h"
@@ -502,13 +503,17 @@ static int tvaudio_thread(void *data)
unsigned int i, audio, nscan;
int max1,max2,carrier,rx,mode,lastmode,default_carrier;
- allow_signal(SIGTERM);
+
+ set_freezable();
+
for (;;) {
tvaudio_sleep(dev,-1);
- if (kthread_should_stop() || signal_pending(current))
+ if (kthread_should_stop())
goto done;
restart:
+ try_to_freeze();
+
dev->thread.scan1 = dev->thread.scan2;
dprintk("tvaudio thread scan start [%d]\n",dev->thread.scan1);
dev->tvaudio = NULL;
@@ -612,9 +617,12 @@ static int tvaudio_thread(void *data)
lastmode = 42;
for (;;) {
+
+ try_to_freeze();
+
if (tvaudio_sleep(dev,5000))
goto restart;
- if (kthread_should_stop() || signal_pending(current))
+ if (kthread_should_stop())
break;
if (UNSET == dev->thread.mode) {
rx = tvaudio_getstereo(dev,&tvaudio[i]);
@@ -630,6 +638,7 @@ static int tvaudio_thread(void *data)
}
done:
+ dev->thread.stopped = 1;
return 0;
}
@@ -777,7 +786,8 @@ static int tvaudio_thread_ddep(void *data)
struct saa7134_dev *dev = data;
u32 value, norms, clock;
- allow_signal(SIGTERM);
+
+ set_freezable();
clock = saa7134_boards[dev->board].audio_clock;
if (UNSET != audio_clock_override)
@@ -790,10 +800,13 @@ static int tvaudio_thread_ddep(void *data)
for (;;) {
tvaudio_sleep(dev,-1);
- if (kthread_should_stop() || signal_pending(current))
+ if (kthread_should_stop())
goto done;
restart:
+
+ try_to_freeze();
+
dev->thread.scan1 = dev->thread.scan2;
dprintk("tvaudio thread scan start [%d]\n",dev->thread.scan1);
@@ -870,6 +883,7 @@ static int tvaudio_thread_ddep(void *data)
}
done:
+ dev->thread.stopped = 1;
return 0;
}
@@ -997,7 +1011,7 @@ int saa7134_tvaudio_init2(struct saa7134_dev *dev)
int saa7134_tvaudio_fini(struct saa7134_dev *dev)
{
/* shutdown tvaudio thread */
- if (dev->thread.thread)
+ if (dev->thread.thread && !dev->thread.stopped)
kthread_stop(dev->thread.thread);
saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x07, 0x00); /* LINE1 */
@@ -1013,7 +1027,9 @@ int saa7134_tvaudio_do_scan(struct saa7134_dev *dev)
} else if (dev->thread.thread) {
dev->thread.mode = UNSET;
dev->thread.scan2++;
- wake_up_process(dev->thread.thread);
+
+ if (!dev->insuspend && !dev->thread.stopped)
+ wake_up_process(dev->thread.thread);
} else {
dev->automute = 0;
saa7134_tvaudio_setmute(dev);
diff --git a/drivers/media/video/saa7134/saa7134.h
b/drivers/media/video/saa7134/saa7134.h
index fe0a843..66a390c 100644
--- a/drivers/media/video/saa7134/saa7134.h
+++ b/drivers/media/video/saa7134/saa7134.h
@@ -333,6 +333,7 @@ struct saa7134_thread {
unsigned int scan1;
unsigned int scan2;
unsigned int mode;
+ unsigned int stopped;
};
/* buffer for one video/vbi/ts frame */
-
To unsubscribe from this list: send the line "unsubscribe git-commits-head" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
