V4L/DVB (4159): Implement tuning algorithm as a module parameter

Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 47 insertions, 5 deletions

diff --git a/drivers/media/dvb/bt8xx/dst.c b/drivers/media/dvb/bt8xx/dst.c
index 2346667721bc..df97210b6b5a 100644
--- a/drivers/media/dvb/bt8xx/dst.c
+++ b/drivers/media/dvb/bt8xx/dst.c
@@ -38,6 +38,10 @@ static unsigned int dst_addons;
 module_param(dst_addons, int, 0644);
 MODULE_PARM_DESC(dst_addons, "CA daughterboard, default is 0 (No addons)");
 
+static unsigned int dst_algo;
+module_param(dst_algo, int, 0644);
+MODULE_PARM_DESC(dst_algo, "tuning algo: default is 0=(SW), 1=(HW)");
+
 #define HAS_LOCK                1
 #define ATTEMPT_TUNE            2
 #define HAS_POWER               4
@@ -1360,7 +1364,36 @@ static int dst_read_snr(struct dvb_frontend *fe, u16 *snr)
         return 0;
 }
 
-static int dst_set_frontend(struct dvb_frontend* fe,
+static int dst_set_frontend(struct dvb_frontend *fe, struct dvb_frontend_parameters *p)
+{
+        struct dst_state *state = fe->demodulator_priv;
+
+        if (p != NULL) {
+                dst_set_freq(state, p->frequency);
+                dprintk(verbose, DST_DEBUG, 1, "Set Frequency=[%d]", p->frequency);
+
+                if (state->dst_type == DST_TYPE_IS_SAT) {
+                        if (state->type_flags & DST_TYPE_HAS_OBS_REGS)
+                                dst_set_inversion(state, p->inversion);
+                        dst_set_fec(state, p->u.qpsk.fec_inner);
+                        dst_set_symbolrate(state, p->u.qpsk.symbol_rate);
+                        dst_set_polarization(state);
+                        dprintk(verbose, DST_DEBUG, 1, "Set Symbolrate=[%d]", p->u.qpsk.symbol_rate);
+
+                } else if (state->dst_type == DST_TYPE_IS_TERR)
+                        dst_set_bandwidth(state, p->u.ofdm.bandwidth);
+                else if (state->dst_type == DST_TYPE_IS_CABLE) {
+                        dst_set_fec(state, p->u.qam.fec_inner);
+                        dst_set_symbolrate(state, p->u.qam.symbol_rate);
+                        dst_set_modulation(state, p->u.qam.modulation);
+                }
+                dst_write_tuna(fe);
+        }
+
+        return 0;
+}
+
+static int dst_tune_frontend(struct dvb_frontend* fe,
                             struct dvb_frontend_parameters* p,
                             unsigned int mode_flags,
                             int *delay,
@@ -1397,6 +1430,11 @@ static int dst_set_frontend(struct dvb_frontend* fe,
         return 0;
 }
 
+static int dst_get_tuning_algo(struct dvb_frontend *fe)
+{
+        return dst_algo;
+}
+
 static int dst_get_frontend(struct dvb_frontend *fe, struct dvb_frontend_parameters *p)
 {
         struct dst_state *state = fe->demodulator_priv;
@@ -1476,7 +1514,8 @@ static struct dvb_frontend_ops dst_dvbt_ops = {
 
         .release = dst_release,
         .init = dst_init,
-        .tune = dst_set_frontend,
+        .tune = dst_tune_frontend,
+        .set_frontend = dst_set_frontend,
         .get_frontend = dst_get_frontend,
         .read_status = dst_read_status,
         .read_signal_strength = dst_read_signal_strength,
@@ -1500,7 +1539,8 @@ static struct dvb_frontend_ops dst_dvbs_ops = {
 
         .release = dst_release,
         .init = dst_init,
-        .tune = dst_set_frontend,
+        .tune = dst_tune_frontend,
+        .set_frontend = dst_set_frontend,
         .get_frontend = dst_get_frontend,
         .read_status = dst_read_status,
         .read_signal_strength = dst_read_signal_strength,
@@ -1527,7 +1567,8 @@ static struct dvb_frontend_ops dst_dvbc_ops = {
 
         .release = dst_release,
         .init = dst_init,
-        .tune = dst_set_frontend,
+        .tune = dst_tune_frontend,
+        .set_frontend = dst_set_frontend,
         .get_frontend = dst_get_frontend,
         .read_status = dst_read_status,
         .read_signal_strength = dst_read_signal_strength,
@@ -1548,7 +1589,8 @@ static struct dvb_frontend_ops dst_atsc_ops = {
 
         .release = dst_release,
         .init = dst_init,
-        .tune = dst_set_frontend,
+        .tune = dst_tune_frontend,
+        .set_frontend = dst_set_frontend,
         .get_frontend = dst_get_frontend,
         .read_status = dst_read_status,
         .read_signal_strength = dst_read_signal_strength,