diff options
Diffstat (limited to 'drivers/media/dvb/dvb-core/dvb_frontend.c')
| -rw-r--r-- | drivers/media/dvb/dvb-core/dvb_frontend.c | 77 |
1 files changed, 70 insertions, 7 deletions
diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c index 7a421e9dba5a..171f9ca124f7 100644 --- a/drivers/media/dvb/dvb-core/dvb_frontend.c +++ b/drivers/media/dvb/dvb-core/dvb_frontend.c @@ -128,6 +128,7 @@ struct dvb_frontend_private { unsigned int step_size; int quality; unsigned int check_wrapped; + enum dvbfe_search algo_status; }; static void dvb_frontend_wakeup(struct dvb_frontend *fe); @@ -516,6 +517,8 @@ static int dvb_frontend_thread(void *data) struct dvb_frontend_private *fepriv = fe->frontend_priv; unsigned long timeout; fe_status_t s; + enum dvbfe_algo algo; + struct dvb_frontend_parameters *params; dprintk("%s\n", __func__); @@ -562,23 +565,80 @@ restart: /* do an iteration of the tuning loop */ if (fe->ops.get_frontend_algo) { - if (fe->ops.get_frontend_algo(fe) == FE_ALGO_HW) { - /* have we been asked to retune? */ - params = NULL; + algo = fe->ops.get_frontend_algo(fe); + switch (algo) { + case DVBFE_ALGO_HW: + dprintk("%s: Frontend ALGO = DVBFE_ALGO_HW\n", __func__); + params = NULL; /* have we been asked to RETUNE ? */ + if (fepriv->state & FESTATE_RETUNE) { + dprintk("%s: Retune requested, FESTATE_RETUNE\n", __func__); params = &fepriv->parameters; fepriv->state = FESTATE_TUNED; } - fe->ops.tune(fe, params, fepriv->tune_mode_flags, &fepriv->delay, &s); - if (s != fepriv->status) { + if (fe->ops.tune) + fe->ops.tune(fe, params, fepriv->tune_mode_flags, &fepriv->delay, &s); + + if (s != fepriv->status && !(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT)) { + dprintk("%s: state changed, adding current state\n", __func__); dvb_frontend_add_event(fe, s); fepriv->status = s; } - } else + break; + case DVBFE_ALGO_SW: + dprintk("%s: Frontend ALGO = DVBFE_ALGO_SW\n", __func__); dvb_frontend_swzigzag(fe); - } else + break; + case DVBFE_ALGO_CUSTOM: + params = NULL; /* have we been asked to RETUNE ? */ + dprintk("%s: Frontend ALGO = DVBFE_ALGO_CUSTOM, state=%d\n", __func__, fepriv->state); + if (fepriv->state & FESTATE_RETUNE) { + dprintk("%s: Retune requested, FESTAT_RETUNE\n", __func__); + params = &fepriv->parameters; + fepriv->state = FESTATE_TUNED; + } + /* Case where we are going to search for a carrier + * User asked us to retune again for some reason, possibly + * requesting a search with a new set of parameters + */ + if (fepriv->algo_status & DVBFE_ALGO_SEARCH_AGAIN) { + if (fe->ops.search) { + fepriv->algo_status = fe->ops.search(fe, &fepriv->parameters); + /* We did do a search as was requested, the flags are + * now unset as well and has the flags wrt to search. + */ + } else { + fepriv->algo_status &= ~DVBFE_ALGO_SEARCH_AGAIN; + } + } + /* Track the carrier if the search was successful */ + if (fepriv->algo_status == DVBFE_ALGO_SEARCH_SUCCESS) { + if (fe->ops.track) + fe->ops.track(fe, &fepriv->parameters); + } else { + fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; + fepriv->delay = HZ / 2; + } + fe->ops.read_status(fe, &s); + if (s != fepriv->status) { + dvb_frontend_add_event(fe, s); /* update event list */ + fepriv->status = s; + if (!(s & FE_HAS_LOCK)) { + fepriv->delay = HZ / 10; + fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; + } else { + fepriv->delay = 60 * HZ; + } + } + break; + default: + dprintk("%s: UNDEFINED ALGO !\n", __func__); + break; + } + } else { dvb_frontend_swzigzag(fe); + } } if (dvb_powerdown_on_sleep) { @@ -1226,6 +1286,9 @@ int dtv_property_process_set(struct dvb_frontend *fe, struct dtv_property *tvp, dprintk("%s() Finalised property cache\n", __func__); dtv_property_cache_submit(fe); + /* Request the search algorithm to search */ + fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; + r |= dvb_frontend_ioctl_legacy(inode, file, FE_SET_FRONTEND, &fepriv->parameters); break; |