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| author | Beholder Intl. Ltd. Dmitry Belimov <d.belimov@gmail.com> | 2009-09-24 20:13:28 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-12-05 23:40:13 +0300 |
| commit | d7009cdc286d7c9714b357b0e85b3fcbbf9e03a4 (patch) | |
| tree | 927d71d2d59d8504b6fe4afce4d56a93573cdc67 /drivers/media/common | |
| parent | 798166dbecafa98ec9b28d056774ec2fc80290df (diff) | |
| download | linux-d7009cdc286d7c9714b357b0e85b3fcbbf9e03a4.tar.xz | |
V4L/DVB (13075): xc5000: add FM radio support
Add FM radio for the xc5000 silicon tuner chip.
Signed-off-by: Beholder Intl. Ltd. Dmitry Belimov <d.belimov@gmail.com>
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/common')
| -rw-r--r-- | drivers/media/common/tuners/xc5000.c | 66 |
1 files changed, 62 insertions, 4 deletions
diff --git a/drivers/media/common/tuners/xc5000.c b/drivers/media/common/tuners/xc5000.c index f4ffcdc9b848..fc7cb74256d0 100644 --- a/drivers/media/common/tuners/xc5000.c +++ b/drivers/media/common/tuners/xc5000.c @@ -739,15 +739,12 @@ static int xc5000_is_firmware_loaded(struct dvb_frontend *fe) return ret; } -static int xc5000_set_analog_params(struct dvb_frontend *fe, +static int xc5000_set_tv_freq(struct dvb_frontend *fe, struct analog_parameters *params) { struct xc5000_priv *priv = fe->tuner_priv; int ret; - if (xc5000_is_firmware_loaded(fe) != XC_RESULT_SUCCESS) - xc_load_fw_and_init_tuner(fe); - dprintk(1, "%s() frequency=%d (in units of 62.5khz)\n", __func__, params->frequency); @@ -827,6 +824,67 @@ tune_channel: return 0; } +static int xc5000_set_radio_freq(struct dvb_frontend *fe, + struct analog_parameters *params) +{ + struct xc5000_priv *priv = fe->tuner_priv; + int ret = -EINVAL; + + dprintk(1, "%s() frequency=%d (in units of khz)\n", + __func__, params->frequency); + + priv->freq_hz = params->frequency * 125 / 2; + + priv->rf_mode = XC_RF_MODE_AIR; + + ret = xc_SetTVStandard(priv, + XC5000_Standard[FM_Radio_INPUT1].VideoMode, + XC5000_Standard[FM_Radio_INPUT1].AudioMode); + + if (ret != XC_RESULT_SUCCESS) { + printk(KERN_ERR "xc5000: xc_SetTVStandard failed\n"); + return -EREMOTEIO; + } + + ret = xc_SetSignalSource(priv, priv->rf_mode); + if (ret != XC_RESULT_SUCCESS) { + printk(KERN_ERR + "xc5000: xc_SetSignalSource(%d) failed\n", + priv->rf_mode); + return -EREMOTEIO; + } + + xc_tune_channel(priv, priv->freq_hz, XC_TUNE_ANALOG); + + return 0; +} + +static int xc5000_set_analog_params(struct dvb_frontend *fe, + struct analog_parameters *params) +{ + struct xc5000_priv *priv = fe->tuner_priv; + int ret = -EINVAL; + + if (priv->i2c_props.adap == NULL) + return -EINVAL; + + if (xc5000_is_firmware_loaded(fe) != XC_RESULT_SUCCESS) + xc_load_fw_and_init_tuner(fe); + + switch (params->mode) { + case V4L2_TUNER_RADIO: + ret = xc5000_set_radio_freq(fe, params); + break; + case V4L2_TUNER_ANALOG_TV: + case V4L2_TUNER_DIGITAL_TV: + ret = xc5000_set_tv_freq(fe, params); + break; + } + + return ret; +} + + static int xc5000_get_frequency(struct dvb_frontend *fe, u32 *freq) { struct xc5000_priv *priv = fe->tuner_priv; |