[media] tuner-simple: use DVBv5 parameters on set_params()

Despite its name, tuner-simple has a complex logic to set freqs ;)

Basically, it can be called by two different ways: via set_params()
or via calc_regs() callbacks. Both are bound to the DVBv3 API.
Also, set_params internally calls calc_regs().

In order to get rid of DVBv3 params at set_params(), it shouldn't
call calc_regs() anymore. The code duplication is very small,
as most of the code there is just to check for invalid parameters.

With regards to calc_regs(), it should still trust on bandwidth and
frequency parameters passed via DVBv3, until a later patch fixes
it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/common/tuners/tuner-simple.c b/drivers/media/common/tuners/tuner-simple.c
index 4092200..e6342db 100644 (file)
--- a/drivers/media/common/tuners/tuner-simple.c
+++ b/drivers/media/common/tuners/tuner-simple.c
@@ -791,24 +791,26 @@ static int simple_set_params(struct dvb_frontend *fe,
 }
 
 static void simple_set_dvb(struct dvb_frontend *fe, u8 *buf,
-                          const struct dvb_frontend_parameters *params)
+                          const u32 delsys,
+                          const u32 frequency,
+                          const u32 bandwidth)
 {
        struct tuner_simple_priv *priv = fe->tuner_priv;
 
        switch (priv->type) {
        case TUNER_PHILIPS_FMD1216ME_MK3:
        case TUNER_PHILIPS_FMD1216MEX_MK3:
-               if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ &&
-                   params->frequency >= 158870000)
+               if (bandwidth == 8000000 &&
+                   frequency >= 158870000)
                        buf[3] |= 0x08;
                break;
        case TUNER_PHILIPS_TD1316:
                /* determine band */
-               buf[3] |= (params->frequency < 161000000) ? 1 :
-                         (params->frequency < 444000000) ? 2 : 4;
+               buf[3] |= (frequency < 161000000) ? 1 :
+                         (frequency < 444000000) ? 2 : 4;
 
                /* setup PLL filter */
-               if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
+               if (bandwidth == 8000000)
                        buf[3] |= 1 << 3;
                break;
        case TUNER_PHILIPS_TUV1236D:
@@ -819,12 +821,11 @@ static void simple_set_dvb(struct dvb_frontend *fe, u8 *buf,
                if (dtv_input[priv->nr])
                        new_rf = dtv_input[priv->nr];
                else
-                       switch (params->u.vsb.modulation) {
-                       case QAM_64:
-                       case QAM_256:
+                       switch (delsys) {
+                       case SYS_DVBC_ANNEX_B:
                                new_rf = 1;
                                break;
-                       case VSB_8:
+                       case SYS_ATSC:
                        default:
                                new_rf = 0;
                                break;
@@ -838,7 +839,9 @@ static void simple_set_dvb(struct dvb_frontend *fe, u8 *buf,
 }
 
 static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf,
-                               const struct dvb_frontend_parameters *params)
+                               const u32 delsys,
+                               const u32 freq,
+                               const u32 bw)
 {
        /* This function returns the tuned frequency on success, 0 on error */
        struct tuner_simple_priv *priv = fe->tuner_priv;
@@ -847,7 +850,7 @@ static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf,
        u8 config, cb;
        u32 div;
        int ret;
-       unsigned frequency = params->frequency / 62500;
+       u32 frequency = freq / 62500;
 
        if (!tun->stepsize) {
                /* tuner-core was loaded before the digital tuner was
@@ -871,7 +874,7 @@ static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf,
        buf[2] = config;
        buf[3] = cb;
 
-       simple_set_dvb(fe, buf, params);
+       simple_set_dvb(fe, buf, delsys, freq, bw);
 
        tuner_dbg("%s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
                  tun->name, div, buf[0], buf[1], buf[2], buf[3]);
@@ -884,13 +887,29 @@ static int simple_dvb_calc_regs(struct dvb_frontend *fe,
                                struct dvb_frontend_parameters *params,
                                u8 *buf, int buf_len)
 {
+       struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+       u32 delsys = c->delivery_system;
+       u32 bw = c->bandwidth_hz;
        struct tuner_simple_priv *priv = fe->tuner_priv;
        u32 frequency;
 
        if (buf_len < 5)
                return -EINVAL;
 
-       frequency = simple_dvb_configure(fe, buf+1, params);
+       switch (delsys) {
+       case SYS_DVBT:
+       case SYS_DVBT2:
+               if (params->u.ofdm.bandwidth == BANDWIDTH_6_MHZ)
+                       bw = 6000000;
+               if (params->u.ofdm.bandwidth == BANDWIDTH_7_MHZ)
+                       bw = 7000000;
+               if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
+                       bw = 8000000;
+               break;
+       default:
+               break;
+       }
+       frequency = simple_dvb_configure(fe, buf+1, delsys, params->frequency, bw);
        if (frequency == 0)
                return -EINVAL;
 
@@ -906,7 +925,12 @@ static int simple_dvb_calc_regs(struct dvb_frontend *fe,
 static int simple_dvb_set_params(struct dvb_frontend *fe,
                                 struct dvb_frontend_parameters *params)
 {
+       struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+       u32 delsys = c->delivery_system;
+       u32 bw = c->bandwidth_hz;
+       u32 freq = c->frequency;
        struct tuner_simple_priv *priv = fe->tuner_priv;
+       u32 frequency;
        u32 prev_freq, prev_bw;
        int ret;
        u8 buf[5];
@@ -917,9 +941,14 @@ static int simple_dvb_set_params(struct dvb_frontend *fe,
        prev_freq = priv->frequency;
        prev_bw   = priv->bandwidth;
 
-       ret = simple_dvb_calc_regs(fe, params, buf, 5);
-       if (ret != 5)
-               goto fail;
+       frequency = simple_dvb_configure(fe, buf+1, delsys, freq, bw);
+       if (frequency == 0)
+               return -EINVAL;
+
+       buf[0] = priv->i2c_props.addr;
+
+       priv->frequency = frequency;
+       priv->bandwidth = bw;
 
        /* put analog demod in standby when tuning digital */
        if (fe->ops.analog_ops.standby)