/* si4713_g_modulator - get modulator attributes */
static int si4713_g_modulator(struct v4l2_subdev *sd, struct v4l2_modulator *vm)
{
struct si4713_device *sdev = to_si4713_device(sd);
int rval = 0;
if (!sdev) {
rval = -ENODEV;
goto exit;
}
if (vm->index > 0) {
rval = -EINVAL;
goto exit;
}
strncpy(vm->name, "FM Modulator", 32);
vm->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LOW |
V4L2_TUNER_CAP_RDS;
/* Report current frequency range limits */
vm->rangelow = si4713_to_v4l2(FREQ_RANGE_LOW);
vm->rangehigh = si4713_to_v4l2(FREQ_RANGE_HIGH);
mutex_lock(&sdev->mutex);
if (sdev->power_state) {
u32 comp_en = 0;
rval = si4713_read_property(sdev, SI4713_TX_COMPONENT_ENABLE,
&comp_en);
if (rval < 0)
goto unlock;
sdev->stereo = get_status_bit(comp_en, 1, 1 << 1);
sdev->rds_info.enabled = get_status_bit(comp_en, 2, 1 << 2);
}
/* Report current audio mode: mono or stereo */
if (sdev->stereo)
vm->txsubchans = V4L2_TUNER_SUB_STEREO;
else
vm->txsubchans = V4L2_TUNER_SUB_MONO;
/* Report rds feature status */
if (sdev->rds_info.enabled)
vm->txsubchans |= V4L2_TUNER_SUB_RDS;
else
vm->txsubchans &= ~V4L2_TUNER_SUB_RDS;
unlock:
mutex_unlock(&sdev->mutex);
exit:
return rval;
}
/* si4713_s_frequency - set tuner or modulator radio frequency */
static int si4713_s_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f)
{
struct si4713_device *sdev = to_si4713_device(sd);
int rval = 0;
u16 frequency = v4l2_to_si4713(f->frequency);
/* Check frequency range */
if (frequency < FREQ_RANGE_LOW || frequency > FREQ_RANGE_HIGH)
return -EDOM;
mutex_lock(&sdev->mutex);
if (sdev->power_state) {
rval = si4713_tx_tune_freq(sdev, frequency);
if (rval < 0)
goto unlock;
frequency = rval;
rval = 0;
}
sdev->frequency = frequency;
f->frequency = si4713_to_v4l2(frequency);
unlock:
mutex_unlock(&sdev->mutex);
return rval;
}
/* si4713_g_frequency - get tuner or modulator radio frequency */
static int si4713_g_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f)
{
struct si4713_device *sdev = to_si4713_device(sd);
int rval = 0;
f->type = V4L2_TUNER_RADIO;
mutex_lock(&sdev->mutex);
if (sdev->power_state) {
u16 freq;
u8 p, a, n;
rval = si4713_tx_tune_status(sdev, 0x00, &freq, &p, &a, &n);
if (rval < 0)
goto unlock;
sdev->frequency = freq;
}
f->frequency = si4713_to_v4l2(sdev->frequency);
unlock:
mutex_unlock(&sdev->mutex);
return rval;
}
/*
* si4713_setup - Sets the device up with current configuration.
* @sdev: si4713_device structure for the device we are communicating
*/
static int si4713_setup(struct si4713_device *sdev)
{
struct v4l2_frequency f;
struct v4l2_modulator vm;
int rval;
/* Device procedure needs to set frequency first */
f.tuner = 0;
f.frequency = sdev->frequency ? sdev->frequency : DEFAULT_FREQUENCY;
f.frequency = si4713_to_v4l2(f.frequency);
rval = si4713_s_frequency(&sdev->sd, &f);
vm.index = 0;
if (sdev->stereo)
vm.txsubchans = V4L2_TUNER_SUB_STEREO;
else
vm.txsubchans = V4L2_TUNER_SUB_MONO;
if (sdev->rds_enabled)
vm.txsubchans |= V4L2_TUNER_SUB_RDS;
si4713_s_modulator(&sdev->sd, &vm);
return rval;
}
/* si4713_g_frequency - get tuner or modulator radio frequency */
static int si4713_g_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f)
{
struct si4713_device *sdev = to_si4713_device(sd);
int rval = 0;
if (f->tuner)
return -EINVAL;
if (sdev->power_state) {
u16 freq;
u8 p, a, n;
rval = si4713_tx_tune_status(sdev, 0x00, &freq, &p, &a, &n);
if (rval < 0)
return rval;
sdev->frequency = freq;
}
f->frequency = si4713_to_v4l2(sdev->frequency);
return rval;
}
static int si4713_setup(struct si4713_device *sdev)
{
struct v4l2_ext_control ctrl;
struct v4l2_frequency f;
struct v4l2_modulator vm;
struct si4713_device *tmp;
int rval = 0;
tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
if (!tmp)
return -ENOMEM;
/* Get a local copy to avoid race */
mutex_lock(&sdev->mutex);
memcpy(tmp, sdev, sizeof(*sdev));
mutex_unlock(&sdev->mutex);
ctrl.id = V4L2_CID_RDS_TX_PI;
ctrl.value = tmp->rds_info.pi;
rval |= si4713_write_econtrol_integers(sdev, &ctrl);
ctrl.id = V4L2_CID_AUDIO_COMPRESSION_THRESHOLD;
ctrl.value = tmp->acomp_info.threshold;
rval |= si4713_write_econtrol_integers(sdev, &ctrl);
ctrl.id = V4L2_CID_AUDIO_COMPRESSION_GAIN;
ctrl.value = tmp->acomp_info.gain;
rval |= si4713_write_econtrol_integers(sdev, &ctrl);
ctrl.id = V4L2_CID_PILOT_TONE_FREQUENCY;
ctrl.value = tmp->pilot_info.frequency;
rval |= si4713_write_econtrol_integers(sdev, &ctrl);
ctrl.id = V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME;
ctrl.value = tmp->acomp_info.attack_time;
rval |= si4713_write_econtrol_integers(sdev, &ctrl);
ctrl.id = V4L2_CID_PILOT_TONE_DEVIATION;
ctrl.value = tmp->pilot_info.deviation;
rval |= si4713_write_econtrol_integers(sdev, &ctrl);
ctrl.id = V4L2_CID_AUDIO_LIMITER_DEVIATION;
ctrl.value = tmp->limiter_info.deviation;
rval |= si4713_write_econtrol_integers(sdev, &ctrl);
ctrl.id = V4L2_CID_RDS_TX_DEVIATION;
ctrl.value = tmp->rds_info.deviation;
rval |= si4713_write_econtrol_integers(sdev, &ctrl);
ctrl.id = V4L2_CID_RDS_TX_PTY;
ctrl.value = tmp->rds_info.pty;
rval |= si4713_write_econtrol_integers(sdev, &ctrl);
ctrl.id = V4L2_CID_AUDIO_LIMITER_ENABLED;
ctrl.value = tmp->limiter_info.enabled;
rval |= si4713_write_econtrol_integers(sdev, &ctrl);
ctrl.id = V4L2_CID_AUDIO_COMPRESSION_ENABLED;
ctrl.value = tmp->acomp_info.enabled;
rval |= si4713_write_econtrol_integers(sdev, &ctrl);
ctrl.id = V4L2_CID_PILOT_TONE_ENABLED;
ctrl.value = tmp->pilot_info.enabled;
rval |= si4713_write_econtrol_integers(sdev, &ctrl);
ctrl.id = V4L2_CID_AUDIO_LIMITER_RELEASE_TIME;
ctrl.value = tmp->limiter_info.release_time;
rval |= si4713_write_econtrol_integers(sdev, &ctrl);
ctrl.id = V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME;
ctrl.value = tmp->acomp_info.release_time;
rval |= si4713_write_econtrol_integers(sdev, &ctrl);
ctrl.id = V4L2_CID_TUNE_PREEMPHASIS;
ctrl.value = tmp->preemphasis;
rval |= si4713_write_econtrol_integers(sdev, &ctrl);
ctrl.id = V4L2_CID_RDS_TX_PS_NAME;
rval |= si4713_set_rds_ps_name(sdev, tmp->rds_info.ps_name);
ctrl.id = V4L2_CID_RDS_TX_RADIO_TEXT;
rval |= si4713_set_rds_radio_text(sdev, tmp->rds_info.radio_text);
/* Device procedure needs to set frequency first */
f.frequency = tmp->frequency ? tmp->frequency : DEFAULT_FREQUENCY;
f.frequency = si4713_to_v4l2(f.frequency);
rval |= si4713_s_frequency(&sdev->sd, &f);
ctrl.id = V4L2_CID_TUNE_POWER_LEVEL;
ctrl.value = tmp->power_level;
rval |= si4713_write_econtrol_tune(sdev, &ctrl);
ctrl.id = V4L2_CID_TUNE_ANTENNA_CAPACITOR;
ctrl.value = tmp->antenna_capacitor;
rval |= si4713_write_econtrol_tune(sdev, &ctrl);
vm.index = 0;
if (tmp->stereo)
vm.txsubchans = V4L2_TUNER_SUB_STEREO;
else
vm.txsubchans = V4L2_TUNER_SUB_MONO;
if (tmp->rds_info.enabled)
vm.txsubchans |= V4L2_TUNER_SUB_RDS;
si4713_s_modulator(&sdev->sd, &vm);
kfree(tmp);
return rval;
}