diff options
| author | Antti Palosaari <crope@iki.fi> | 2012-08-15 05:21:06 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-08-16 02:18:43 +0400 |
| commit | 06bae1227aadf51d047f7a75834ed446e56ebae2 (patch) | |
| tree | 0f8900b4515c07fbadab099c45fbe8342cab3fd2 /drivers/media/dvb-core | |
| parent | 0898b95409489abd7219f5f7ca675c84656fb94f (diff) | |
| download | linux-06bae1227aadf51d047f7a75834ed446e56ebae2.tar.xz | |
[media] dvb_frontend: implement suspend / resume
Move initial suspend / resume support from dvb_usb_v2 to dvb_frontend
as it is dvb general feature that could be used all dvb devices.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/dvb-core')
| -rw-r--r-- | drivers/media/dvb-core/dvb_frontend.c | 47 | ||||
| -rw-r--r-- | drivers/media/dvb-core/dvb_frontend.h | 3 |
2 files changed, 40 insertions, 10 deletions
diff --git a/drivers/media/dvb-core/dvb_frontend.c b/drivers/media/dvb-core/dvb_frontend.c index 5fb19eae5a82..aa4d4d85dc20 100644 --- a/drivers/media/dvb-core/dvb_frontend.c +++ b/drivers/media/dvb-core/dvb_frontend.c @@ -307,15 +307,6 @@ void dvb_frontend_reinitialise(struct dvb_frontend *fe) } EXPORT_SYMBOL(dvb_frontend_reinitialise); -void dvb_frontend_retune(struct dvb_frontend *fe) -{ - struct dvb_frontend_private *fepriv = fe->frontend_priv; - - fepriv->state = FESTATE_RETUNE; - dvb_frontend_wakeup(fe); -} -EXPORT_SYMBOL(dvb_frontend_retune); - static void dvb_frontend_swzigzag_update_delay(struct dvb_frontend_private *fepriv, int locked) { int q2; @@ -2448,6 +2439,44 @@ static const struct file_operations dvb_frontend_fops = { .llseek = noop_llseek, }; +int dvb_frontend_suspend(struct dvb_frontend *fe) +{ + int ret = 0; + + dev_dbg(fe->dvb->device, "%s: adap=%d fe=%d\n", __func__, fe->dvb->num, + fe->id); + + if (fe->ops.tuner_ops.sleep) + ret = fe->ops.tuner_ops.sleep(fe); + + if (fe->ops.sleep) + ret = fe->ops.sleep(fe); + + return ret; +} +EXPORT_SYMBOL(dvb_frontend_suspend); + +int dvb_frontend_resume(struct dvb_frontend *fe) +{ + struct dvb_frontend_private *fepriv = fe->frontend_priv; + int ret = 0; + + dev_dbg(fe->dvb->device, "%s: adap=%d fe=%d\n", __func__, fe->dvb->num, + fe->id); + + if (fe->ops.init) + ret = fe->ops.init(fe); + + if (fe->ops.tuner_ops.init) + ret = fe->ops.tuner_ops.init(fe); + + fepriv->state = FESTATE_RETUNE; + dvb_frontend_wakeup(fe); + + return ret; +} +EXPORT_SYMBOL(dvb_frontend_resume); + int dvb_register_frontend(struct dvb_adapter* dvb, struct dvb_frontend* fe) { diff --git a/drivers/media/dvb-core/dvb_frontend.h b/drivers/media/dvb-core/dvb_frontend.h index 58f6b4c16b40..db309db79bd6 100644 --- a/drivers/media/dvb-core/dvb_frontend.h +++ b/drivers/media/dvb-core/dvb_frontend.h @@ -418,7 +418,8 @@ extern int dvb_unregister_frontend(struct dvb_frontend *fe); extern void dvb_frontend_detach(struct dvb_frontend *fe); extern void dvb_frontend_reinitialise(struct dvb_frontend *fe); -extern void dvb_frontend_retune(struct dvb_frontend *fe); +extern int dvb_frontend_suspend(struct dvb_frontend *fe); +extern int dvb_frontend_resume(struct dvb_frontend *fe); extern void dvb_frontend_sleep_until(struct timeval *waketime, u32 add_usec); extern s32 timeval_usec_diff(struct timeval lasttime, struct timeval curtime); |