diff options
Diffstat (limited to 'drivers/media/common/tuners/tda18212.c')
| -rw-r--r-- | drivers/media/common/tuners/tda18212.c | 72 |
1 files changed, 59 insertions, 13 deletions
diff --git a/drivers/media/common/tuners/tda18212.c b/drivers/media/common/tuners/tda18212.c index e29cc2bc113a..602c2e392b17 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, |