V4L/DVB (9344): DVB-Core update
Signed-off-by: Manu Abraham <manu@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Manu Abraham
Mauro Carvalho Chehab
parent
a12ca6a6e1
commit
c59e7870fd
2 changed files with 192 additions and 8 deletions
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@ -128,6 +128,7 @@ struct dvb_frontend_private {
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unsigned int step_size;
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int quality;
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unsigned int check_wrapped;
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enum dvbfe_search algo_status;
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};
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static void dvb_frontend_wakeup(struct dvb_frontend *fe);
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@ -516,6 +517,8 @@ static int dvb_frontend_thread(void *data)
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struct dvb_frontend_private *fepriv = fe->frontend_priv;
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unsigned long timeout;
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fe_status_t s;
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enum dvbfe_algo algo;
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struct dvb_frontend_parameters *params;
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dprintk("%s\n", __func__);
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@ -562,23 +565,72 @@ static int dvb_frontend_thread(void *data)
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/* do an iteration of the tuning loop */
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if (fe->ops.get_frontend_algo) {
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if (fe->ops.get_frontend_algo(fe) == FE_ALGO_HW) {
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/* have we been asked to retune? */
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params = NULL;
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algo = fe->ops.get_frontend_algo(fe);
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switch (algo) {
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case DVBFE_ALGO_HW:
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dprintk("%s: Frontend ALGO = DVBFE_ALGO_HW\n", __func__);
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params = NULL; /* have we been asked to RETUNE ? */
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if (fepriv->state & FESTATE_RETUNE) {
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params = &fepriv->parameters;
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dprintk("%s: Retune requested, FESTATE_RETUNE\n", __func__);
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fepriv->state = FESTATE_TUNED;
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}
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fe->ops.tune(fe, params, fepriv->tune_mode_flags, &fepriv->delay, &s);
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if (fe->ops.tune)
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fe->ops.tune(fe, params, fepriv->tune_mode_flags, &fepriv->delay, &s);
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if (s != fepriv->status) {
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dprintk("%s: state changed, adding current state\n", __func__);
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dvb_frontend_add_event(fe, s);
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fepriv->status = s;
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}
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} else
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break;
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case DVBFE_ALGO_SW:
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dprintk("%s: Frontend ALGO = DVBFE_ALGO_SW\n", __func__);
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dvb_frontend_swzigzag(fe);
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} else
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break;
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case DVBFE_ALGO_CUSTOM:
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params = NULL; /* have we been asked to RETUNE ? */
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dprintk("%s: Frontend ALGO = DVBFE_ALGO_CUSTOM, state=%d\n", __func__, fepriv->state);
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if (fepriv->state & FESTATE_RETUNE) {
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dprintk("%s: Retune requested, FESTAT_RETUNE\n", __func__);
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fepriv->state = FESTATE_TUNED;
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}
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/* Case where we are going to search for a carrier
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* User asked us to retune again for some reason, possibly
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* requesting a search with a new set of parameters
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*/
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if (fepriv->algo_status & DVBFE_ALGO_SEARCH_AGAIN) {
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if (fe->ops.search)
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fepriv->algo_status = fe->ops.search(fe, &fepriv->parameters);
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/* We did do a search as was requested, the flags are
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* now unset as well and has the flags wrt to search.
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*/
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fepriv->algo_status &= ~DVBFE_ALGO_SEARCH_AGAIN;
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}
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/* Track the carrier if the search was successful */
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if (fepriv->algo_status == DVBFE_ALGO_SEARCH_SUCCESS) {
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if (fepriv->algo_status & DVBFE_ALGO_SEARCH_SUCCESS)
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dprintk("%s: status = DVBFE_ALGO_SEARCH_SUCCESS\n", __func__);
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if (fepriv->algo_status & DVBFE_ALGO_SEARCH_FAILED)
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fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN;
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fe->ops.read_status(fe, &s);
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dvb_frontend_add_event(fe, s); /* update event list */
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fepriv->status = s;
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if (fe->ops.track)
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fe->ops.track(fe, &fepriv->parameters);
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}
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break;
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default:
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dprintk("%s: UNDEFINED ALGO !\n", __func__);
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break;
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}
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} else {
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dvb_frontend_swzigzag(fe);
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}
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}
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if (dvb_powerdown_on_sleep) {
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@ -69,6 +69,125 @@ struct analog_parameters {
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u64 std;
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};
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enum dvbfe_modcod {
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DVBFE_MODCOD_DUMMY_PLFRAME = 0,
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DVBFE_MODCOD_QPSK_1_4,
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DVBFE_MODCOD_QPSK_1_3,
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DVBFE_MODCOD_QPSK_2_5,
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DVBFE_MODCOD_QPSK_1_2,
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DVBFE_MODCOD_QPSK_3_5,
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DVBFE_MODCOD_QPSK_2_3,
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DVBFE_MODCOD_QPSK_3_4,
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DVBFE_MODCOD_QPSK_4_5,
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DVBFE_MODCOD_QPSK_5_6,
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DVBFE_MODCOD_QPSK_8_9,
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DVBFE_MODCOD_QPSK_9_10,
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DVBFE_MODCOD_8PSK_3_5,
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DVBFE_MODCOD_8PSK_2_3,
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DVBFE_MODCOD_8PSK_3_4,
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DVBFE_MODCOD_8PSK_5_6,
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DVBFE_MODCOD_8PSK_8_9,
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DVBFE_MODCOD_8PSK_9_10,
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DVBFE_MODCOD_16APSK_2_3,
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DVBFE_MODCOD_16APSK_3_4,
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DVBFE_MODCOD_16APSK_4_5,
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DVBFE_MODCOD_16APSK_5_6,
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DVBFE_MODCOD_16APSK_8_9,
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DVBFE_MODCOD_16APSK_9_10,
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DVBFE_MODCOD_32APSK_3_4,
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DVBFE_MODCOD_32APSK_4_5,
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DVBFE_MODCOD_32APSK_5_6,
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DVBFE_MODCOD_32APSK_8_9,
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DVBFE_MODCOD_32APSK_9_10,
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DVBFE_MODCOD_RESERVED_1,
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DVBFE_MODCOD_BPSK_1_3,
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DVBFE_MODCOD_BPSK_1_4,
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DVBFE_MODCOD_RESERVED_2
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};
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enum tuner_param {
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DVBFE_TUNER_FREQUENCY = (1 << 0),
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DVBFE_TUNER_TUNERSTEP = (1 << 1),
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DVBFE_TUNER_IFFREQ = (1 << 2),
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DVBFE_TUNER_BANDWIDTH = (1 << 3),
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DVBFE_TUNER_REFCLOCK = (1 << 4),
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DVBFE_TUNER_IQSENSE = (1 << 5),
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DVBFE_TUNER_DUMMY = (1 << 31)
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};
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/*
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* ALGO_HW: (Hardware Algorithm)
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* ----------------------------------------------------------------
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* Devices that support this algorithm do everything in hardware
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* and no software support is needed to handle them.
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* Requesting these devices to LOCK is the only thing required,
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* device is supposed to do everything in the hardware.
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*
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* ALGO_SW: (Software Algorithm)
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* ----------------------------------------------------------------
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* These are dumb devices, that require software to do everything
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*
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* ALGO_CUSTOM: (Customizable Agorithm)
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* ----------------------------------------------------------------
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* Devices having this algorithm can be customized to have specific
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* algorithms in the frontend driver, rather than simply doing a
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* software zig-zag. In this case the zigzag maybe hardware assisted
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* or it maybe completely done in hardware. In all cases, usage of
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* this algorithm, in conjunction with the search and track
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* callbacks, utilizes the driver specific algorithm.
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*
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* ALGO_RECOVERY: (Recovery Algorithm)
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* ----------------------------------------------------------------
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* These devices have AUTO recovery capabilities from LOCK failure
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*/
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enum dvbfe_algo {
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DVBFE_ALGO_HW = (1 << 0),
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DVBFE_ALGO_SW = (1 << 1),
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DVBFE_ALGO_CUSTOM = (1 << 2),
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DVBFE_ALGO_RECOVERY = (1 << 31)
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};
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struct tuner_state {
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u32 frequency;
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u32 tunerstep;
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u32 ifreq;
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u32 bandwidth;
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u32 iqsense;
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u32 refclock;
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};
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/*
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* search callback possible return status
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*
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* DVBFE_ALGO_SEARCH_SUCCESS
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* The frontend search algorithm completed and returned succesfully
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*
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* DVBFE_ALGO_SEARCH_ASLEEP
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* The frontend search algorithm is sleeping
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*
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* DVBFE_ALGO_SEARCH_FAILED
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* The frontend search for a signal failed
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*
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* DVBFE_ALGO_SEARCH_INVALID
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* The frontend search algorith was probably supplied with invalid
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* parameters and the search is an invalid one
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*
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* DVBFE_ALGO_SEARCH_ERROR
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* The frontend search algorithm failed due to some error
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*
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* DVBFE_ALGO_SEARCH_AGAIN
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* The frontend search algorithm was requested to search again
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*/
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enum dvbfe_search {
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DVBFE_ALGO_SEARCH_SUCCESS = (1 << 0),
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DVBFE_ALGO_SEARCH_ASLEEP = (1 << 1),
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DVBFE_ALGO_SEARCH_FAILED = (1 << 2),
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DVBFE_ALGO_SEARCH_INVALID = (1 << 3),
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DVBFE_ALGO_SEARCH_AGAIN = (1 << 4),
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DVBFE_ALGO_SEARCH_ERROR = (1 << 31),
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};
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struct dvb_tuner_ops {
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struct dvb_tuner_info info;
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@ -99,6 +218,13 @@ struct dvb_tuner_ops {
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* tuners which require sophisticated tuning loops, controlling each parameter seperately. */
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int (*set_frequency)(struct dvb_frontend *fe, u32 frequency);
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int (*set_bandwidth)(struct dvb_frontend *fe, u32 bandwidth);
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/*
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* These are provided seperately from set_params in order to facilitate silicon
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* tuners which require sophisticated tuning loops, controlling each parameter seperately.
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*/
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int (*set_state)(struct dvb_frontend *fe, enum tuner_param param, struct tuner_state *state);
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int (*get_state)(struct dvb_frontend *fe, enum tuner_param param, struct tuner_state *state);
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};
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struct analog_demod_info {
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@ -142,7 +268,7 @@ struct dvb_frontend_ops {
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unsigned int *delay,
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fe_status_t *status);
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/* get frontend tuning algorithm from the module */
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int (*get_frontend_algo)(struct dvb_frontend *fe);
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enum dvbfe_algo (*get_frontend_algo)(struct dvb_frontend *fe);
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/* these two are only used for the swzigzag code */
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int (*set_frontend)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params);
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@ -167,6 +293,12 @@ struct dvb_frontend_ops {
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int (*i2c_gate_ctrl)(struct dvb_frontend* fe, int enable);
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int (*ts_bus_ctrl)(struct dvb_frontend* fe, int acquire);
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/* These callbacks are for devices that implement their own
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* tuning algorithms, rather than a simple swzigzag
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*/
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enum dvbfe_search (*search)(struct dvb_frontend *fe, struct dvb_frontend_parameters *p);
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int (*track)(struct dvb_frontend *fe, struct dvb_frontend_parameters *p);
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struct dvb_tuner_ops tuner_ops;
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struct analog_demod_ops analog_ops;
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