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path: root/drivers/media/common/tuners/tda18212.c
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Diffstat (limited to 'drivers/media/common/tuners/tda18212.c')
-rw-r--r--drivers/media/common/tuners/tda18212.c72
1 files changed, 59 insertions, 13 deletions
diff --git a/drivers/media/common/tuners/tda18212.c b/drivers/media/common/tuners/tda18212.c
index e29cc2bc113..602c2e392b1 100644
--- a/drivers/media/common/tuners/tda18212.c
+++ b/drivers/media/common/tuners/tda18212.c
@@ -25,6 +25,8 @@
struct tda18212_priv {
struct tda18212_config *cfg;
struct i2c_adapter *i2c;
+
+ u32 if_frequency;
};
#define dbg(fmt, arg...) \
@@ -128,20 +130,31 @@ static void tda18212_dump_regs(struct tda18212_priv *priv)
}
#endif
-static int tda18212_set_params(struct dvb_frontend *fe,
- struct dvb_frontend_parameters *p)
+static int tda18212_set_params(struct dvb_frontend *fe)
{
struct tda18212_priv *priv = fe->tuner_priv;
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret, i;
u32 if_khz;
u8 buf[9];
+ #define DVBT_6 0
+ #define DVBT_7 1
+ #define DVBT_8 2
+ #define DVBT2_6 3
+ #define DVBT2_7 4
+ #define DVBT2_8 5
+ #define DVBC_6 6
+ #define DVBC_8 7
static const u8 bw_params[][3] = {
- /* 0f 13 23 */
- { 0xb3, 0x20, 0x03 }, /* DVB-T 6 MHz */
- { 0xb3, 0x31, 0x01 }, /* DVB-T 7 MHz */
- { 0xb3, 0x22, 0x01 }, /* DVB-T 8 MHz */
- { 0x92, 0x53, 0x03 }, /* DVB-C */
+ /* reg: 0f 13 23 */
+ [DVBT_6] = { 0xb3, 0x20, 0x03 },
+ [DVBT_7] = { 0xb3, 0x31, 0x01 },
+ [DVBT_8] = { 0xb3, 0x22, 0x01 },
+ [DVBT2_6] = { 0xbc, 0x20, 0x03 },
+ [DVBT2_7] = { 0xbc, 0x72, 0x03 },
+ [DVBT2_8] = { 0xbc, 0x22, 0x01 },
+ [DVBC_6] = { 0x92, 0x50, 0x03 },
+ [DVBC_8] = { 0x92, 0x53, 0x03 },
};
dbg("delsys=%d RF=%d BW=%d\n",
@@ -155,24 +168,44 @@ static int tda18212_set_params(struct dvb_frontend *fe,
switch (c->bandwidth_hz) {
case 6000000:
if_khz = priv->cfg->if_dvbt_6;
- i = 0;
+ i = DVBT_6;
break;
case 7000000:
if_khz = priv->cfg->if_dvbt_7;
- i = 1;
+ i = DVBT_7;
break;
case 8000000:
if_khz = priv->cfg->if_dvbt_8;
- i = 2;
+ i = DVBT_8;
break;
default:
ret = -EINVAL;
goto error;
}
break;
- case SYS_DVBC_ANNEX_AC:
+ case SYS_DVBT2:
+ switch (c->bandwidth_hz) {
+ case 6000000:
+ if_khz = priv->cfg->if_dvbt2_6;
+ i = DVBT2_6;
+ break;
+ case 7000000:
+ if_khz = priv->cfg->if_dvbt2_7;
+ i = DVBT2_7;
+ break;
+ case 8000000:
+ if_khz = priv->cfg->if_dvbt2_8;
+ i = DVBT2_8;
+ break;
+ default:
+ ret = -EINVAL;
+ goto error;
+ }
+ break;
+ case SYS_DVBC_ANNEX_A:
+ case SYS_DVBC_ANNEX_C:
if_khz = priv->cfg->if_dvbc;
- i = 3;
+ i = DVBC_8;
break;
default:
ret = -EINVAL;
@@ -194,7 +227,7 @@ static int tda18212_set_params(struct dvb_frontend *fe,
buf[0] = 0x02;
buf[1] = bw_params[i][1];
buf[2] = 0x03; /* default value */
- buf[3] = if_khz / 50;
+ buf[3] = DIV_ROUND_CLOSEST(if_khz, 50);
buf[4] = ((c->frequency / 1000) >> 16) & 0xff;
buf[5] = ((c->frequency / 1000) >> 8) & 0xff;
buf[6] = ((c->frequency / 1000) >> 0) & 0xff;
@@ -204,6 +237,9 @@ static int tda18212_set_params(struct dvb_frontend *fe,
if (ret)
goto error;
+ /* actual IF rounded as it is on register */
+ priv->if_frequency = buf[3] * 50 * 1000;
+
exit:
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 0); /* close I2C-gate */
@@ -215,6 +251,15 @@ error:
goto exit;
}
+static int tda18212_get_if_frequency(struct dvb_frontend *fe, u32 *frequency)
+{
+ struct tda18212_priv *priv = fe->tuner_priv;
+
+ *frequency = priv->if_frequency;
+
+ return 0;
+}
+
static int tda18212_release(struct dvb_frontend *fe)
{
kfree(fe->tuner_priv);
@@ -234,6 +279,7 @@ static const struct dvb_tuner_ops tda18212_tuner_ops = {
.release = tda18212_release,
.set_params = tda18212_set_params,
+ .get_if_frequency = tda18212_get_if_frequency,
};
struct dvb_frontend *tda18212_attach(struct dvb_frontend *fe,