summaryrefslogtreecommitdiffstats
path: root/drivers/media/dvb/dvb-core/dvb_frontend.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/dvb/dvb-core/dvb_frontend.c')
-rw-r--r--drivers/media/dvb/dvb-core/dvb_frontend.c103
1 files changed, 85 insertions, 18 deletions
diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c
index 7a421e9dba5..84340778508 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) {
@@ -764,7 +824,7 @@ static int dvb_frontend_check_parameters(struct dvb_frontend *fe,
return 0;
}
-struct dtv_cmds_h dtv_cmds[] = {
+static struct dtv_cmds_h dtv_cmds[] = {
[DTV_TUNE] = {
.name = "DTV_TUNE",
.cmd = DTV_TUNE,
@@ -902,7 +962,7 @@ struct dtv_cmds_h dtv_cmds[] = {
},
};
-void dtv_property_dump(struct dtv_property *tvp)
+static void dtv_property_dump(struct dtv_property *tvp)
{
int i;
@@ -933,7 +993,7 @@ void dtv_property_dump(struct dtv_property *tvp)
dprintk("%s() tvp.u.data = 0x%08x\n", __func__, tvp->u.data);
}
-int is_legacy_delivery_system(fe_delivery_system_t s)
+static int is_legacy_delivery_system(fe_delivery_system_t s)
{
if((s == SYS_UNDEFINED) || (s == SYS_DVBC_ANNEX_AC) ||
(s == SYS_DVBC_ANNEX_B) || (s == SYS_DVBT) || (s == SYS_DVBS) ||
@@ -947,7 +1007,8 @@ int is_legacy_delivery_system(fe_delivery_system_t s)
* drivers can use a single set_frontend tuning function, regardless of whether
* it's being used for the legacy or new API, reducing code and complexity.
*/
-void dtv_property_cache_sync(struct dvb_frontend *fe, struct dvb_frontend_parameters *p)
+static void dtv_property_cache_sync(struct dvb_frontend *fe,
+ struct dvb_frontend_parameters *p)
{
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
@@ -999,7 +1060,7 @@ void dtv_property_cache_sync(struct dvb_frontend *fe, struct dvb_frontend_parame
/* Ensure the cached values are set correctly in the frontend
* legacy tuning structures, for the advanced tuning API.
*/
-void dtv_property_legacy_params_sync(struct dvb_frontend *fe)
+static void dtv_property_legacy_params_sync(struct dvb_frontend *fe)
{
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
struct dvb_frontend_private *fepriv = fe->frontend_priv;
@@ -1054,7 +1115,7 @@ void dtv_property_legacy_params_sync(struct dvb_frontend *fe)
/* Ensure the cached values are set correctly in the frontend
* legacy tuning structures, for the legacy tuning API.
*/
-void dtv_property_adv_params_sync(struct dvb_frontend *fe)
+static void dtv_property_adv_params_sync(struct dvb_frontend *fe)
{
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
struct dvb_frontend_private *fepriv = fe->frontend_priv;
@@ -1089,7 +1150,7 @@ void dtv_property_adv_params_sync(struct dvb_frontend *fe)
}
}
-void dtv_property_cache_submit(struct dvb_frontend *fe)
+static void dtv_property_cache_submit(struct dvb_frontend *fe)
{
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
@@ -1120,8 +1181,9 @@ static int dvb_frontend_ioctl_legacy(struct inode *inode, struct file *file,
static int dvb_frontend_ioctl_properties(struct inode *inode, struct file *file,
unsigned int cmd, void *parg);
-int dtv_property_process_get(struct dvb_frontend *fe, struct dtv_property *tvp,
- struct inode *inode, struct file *file)
+static int dtv_property_process_get(struct dvb_frontend *fe,
+ struct dtv_property *tvp,
+ struct inode *inode, struct file *file)
{
int r = 0;
@@ -1193,8 +1255,10 @@ int dtv_property_process_get(struct dvb_frontend *fe, struct dtv_property *tvp,
return r;
}
-int dtv_property_process_set(struct dvb_frontend *fe, struct dtv_property *tvp,
- struct inode *inode, struct file *file)
+static int dtv_property_process_set(struct dvb_frontend *fe,
+ struct dtv_property *tvp,
+ struct inode *inode,
+ struct file *file)
{
int r = 0;
struct dvb_frontend_private *fepriv = fe->frontend_priv;
@@ -1226,6 +1290,9 @@ 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;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-04-13 04:08:38 +0000