diff options
| author | Andrew de Quincey <adq_dvb@lidskialf.net> | 2006-03-30 15:53:35 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2006-04-02 04:56:02 -0300 |
| commit | 86f40cc3c994822ffeb226753526d87be21bd79a (patch) | |
| tree | aeb2c3cc3989363a234298e1e2b80973f53657b5 /drivers/media/dvb/dvb-core | |
| parent | 5e85bd057f0cb29881e3d55d29f48bb55bd2f450 (diff) | |
V4L/DVB (3673): Fix budget-av CAM reset
Unfortunately on the budget-av board, the CAM reset line is tied to the
frontend reset line, so resetting the CAM also zaps the frontend. This
breaks the tda1004x at least, and causes it to fail to tune until the
budget-av module is reloaded. This patch adds an exported function to dvb_frontend
that allows a card to forcibly reinitialise a frontend. The budget-av now
does this on CAM reset, which corrects this problem.
since they do not tie the CAM reset line to the frontend reset line.
Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/dvb/dvb-core')
| -rw-r--r-- | drivers/media/dvb/dvb-core/dvb_frontend.c | 18 | ||||
| -rw-r--r-- | drivers/media/dvb/dvb-core/dvb_frontend.h | 2 |
2 files changed, 19 insertions, 1 deletions
diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c index 2c3ea8f95dcd..4f8f257e6795 100644 --- a/drivers/media/dvb/dvb-core/dvb_frontend.c +++ b/drivers/media/dvb/dvb-core/dvb_frontend.c @@ -105,6 +105,7 @@ struct dvb_frontend_private { fe_status_t status; unsigned long tune_mode_flags; unsigned int delay; + unsigned int reinitialise; /* swzigzag values */ unsigned int state; @@ -121,6 +122,7 @@ struct dvb_frontend_private { unsigned int check_wrapped; }; +static void dvb_frontend_wakeup(struct dvb_frontend *fe); static void dvb_frontend_add_event(struct dvb_frontend *fe, fe_status_t status) { @@ -213,6 +215,15 @@ static void dvb_frontend_init(struct dvb_frontend *fe) fe->ops->init(fe); } +void dvb_frontend_reinitialise(struct dvb_frontend *fe) +{ + struct dvb_frontend_private *fepriv = fe->frontend_priv; + + fepriv->reinitialise = 1; + dvb_frontend_wakeup(fe); +} +EXPORT_SYMBOL(dvb_frontend_reinitialise); + static void dvb_frontend_swzigzag_update_delay(struct dvb_frontend_private *fepriv, int locked) { int q2; @@ -505,8 +516,8 @@ static int dvb_frontend_thread(void *data) fepriv->quality = 0; fepriv->delay = 3*HZ; fepriv->status = 0; - dvb_frontend_init(fe); fepriv->wakeup = 0; + fepriv->reinitialise = 1; while (1) { up(&fepriv->sem); /* is locked when we enter the thread... */ @@ -524,6 +535,11 @@ static int dvb_frontend_thread(void *data) if (down_interruptible(&fepriv->sem)) break; + if (fepriv->reinitialise) { + dvb_frontend_init(fe); + fepriv->reinitialise = 0; + } + /* do an iteration of the tuning loop */ if (fe->ops->tune) { /* have we been asked to retune? */ diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.h b/drivers/media/dvb/dvb-core/dvb_frontend.h index d5aee5ad67a0..5926a3b745c9 100644 --- a/drivers/media/dvb/dvb-core/dvb_frontend.h +++ b/drivers/media/dvb/dvb-core/dvb_frontend.h @@ -112,6 +112,8 @@ extern int dvb_register_frontend(struct dvb_adapter* dvb, extern int dvb_unregister_frontend(struct dvb_frontend* fe); +extern void dvb_frontend_reinitialise(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); |