/* si4713_g_ctrl - get the value of a control */
static int si4713_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
{
struct si4713_device *sdev = to_si4713_device(sd);
int rval = 0;
if (!sdev)
return -ENODEV;
mutex_lock(&sdev->mutex);
if (sdev->power_state) {
rval = si4713_read_property(sdev, SI4713_TX_LINE_INPUT_MUTE,
&sdev->mute);
if (rval < 0)
goto unlock;
}
switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE:
ctrl->value = get_mute(sdev->mute);
break;
}
unlock:
mutex_unlock(&sdev->mutex);
return rval;
}
/* 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_modulator - set modulator attributes */
static int si4713_s_modulator(struct v4l2_subdev *sd, struct v4l2_modulator *vm)
{
struct si4713_device *sdev = to_si4713_device(sd);
int rval = 0;
u16 stereo, rds;
u32 p;
if (!sdev)
return -ENODEV;
if (vm->index > 0)
return -EINVAL;
/* Set audio mode: mono or stereo */
if (vm->txsubchans & V4L2_TUNER_SUB_STEREO)
stereo = 1;
else if (vm->txsubchans & V4L2_TUNER_SUB_MONO)
stereo = 0;
else
return -EINVAL;
rds = !!(vm->txsubchans & V4L2_TUNER_SUB_RDS);
mutex_lock(&sdev->mutex);
if (sdev->power_state) {
rval = si4713_read_property(sdev,
SI4713_TX_COMPONENT_ENABLE, &p);
if (rval < 0)
goto unlock;
p = set_bits(p, stereo, 1, 1 << 1);
p = set_bits(p, rds, 2, 1 << 2);
rval = si4713_write_property(sdev,
SI4713_TX_COMPONENT_ENABLE, p);
if (rval < 0)
goto unlock;
}
sdev->stereo = stereo;
sdev->rds_info.enabled = rds;
unlock:
mutex_unlock(&sdev->mutex);
return rval;
}
static int si4713_read_econtrol_integers(struct si4713_device *sdev,
struct v4l2_ext_control *control)
{
s32 rval;
u32 *shadow = NULL, val = 0;
s32 bit = 0, mask = 0;
u16 property = 0;
int mul = 0;
unsigned long *table = NULL;
int size = 0;
rval = si4713_choose_econtrol_action(sdev, control->id, &shadow, &bit,
&mask, &property, &mul, &table, &size);
if (rval < 0)
goto exit;
mutex_lock(&sdev->mutex);
if (sdev->power_state) {
rval = si4713_read_property(sdev, property, &val);
if (rval < 0)
goto unlock;
/* Keep negative values for threshold */
if (control->id == V4L2_CID_AUDIO_COMPRESSION_THRESHOLD)
*shadow = (s16)val;
else if (mask)
*shadow = get_status_bit(val, bit, mask);
else if (mul)
*shadow = val * mul;
else
*shadow = dev_to_usecs(val, table, size);
}
control->value = *shadow;
unlock:
mutex_unlock(&sdev->mutex);
exit:
return rval;
}
/* si4713_s_ctrl - set the value of a control */
static int si4713_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct si4713_device *sdev =
container_of(ctrl->handler, struct si4713_device, ctrl_handler);
u32 val = 0;
s32 bit = 0, mask = 0;
u16 property = 0;
int mul = 0;
unsigned long *table = NULL;
int size = 0;
bool force = false;
int c;
int ret = 0;
if (ctrl->id != V4L2_CID_AUDIO_MUTE)
return -EINVAL;
if (ctrl->is_new) {
if (ctrl->val) {
ret = si4713_set_mute(sdev, ctrl->val);
if (!ret)
ret = si4713_set_power_state(sdev, POWER_DOWN);
return ret;
}
ret = si4713_set_power_state(sdev, POWER_UP);
if (!ret)
ret = si4713_set_mute(sdev, ctrl->val);
if (!ret)
ret = si4713_setup(sdev);
if (ret)
return ret;
force = true;
}
if (!sdev->power_state)
return 0;
for (c = 1; !ret && c < ctrl->ncontrols; c++) {
ctrl = ctrl->cluster[c];
if (!force && !ctrl->is_new)
continue;
switch (ctrl->id) {
case V4L2_CID_RDS_TX_PS_NAME:
ret = si4713_set_rds_ps_name(sdev, ctrl->string);
break;
case V4L2_CID_RDS_TX_RADIO_TEXT:
ret = si4713_set_rds_radio_text(sdev, ctrl->string);
break;
case V4L2_CID_TUNE_ANTENNA_CAPACITOR:
/* don't handle this control if we force setting all
* controls since in that case it will be handled by
* V4L2_CID_TUNE_POWER_LEVEL. */
if (force)
break;
/* fall through */
case V4L2_CID_TUNE_POWER_LEVEL:
ret = si4713_tx_tune_power(sdev,
sdev->tune_pwr_level->val, sdev->tune_ant_cap->val);
if (!ret) {
/* Make sure we don't set this twice */
sdev->tune_ant_cap->is_new = false;
sdev->tune_pwr_level->is_new = false;
}
break;
default:
ret = si4713_choose_econtrol_action(sdev, ctrl->id, &bit,
&mask, &property, &mul, &table, &size);
if (ret < 0)
break;
val = ctrl->val;
if (mul) {
val = val / mul;
} else if (table) {
ret = usecs_to_dev(val, table, size);
if (ret < 0)
break;
val = ret;
ret = 0;
}
if (mask) {
ret = si4713_read_property(sdev, property, &val);
if (ret < 0)
break;
val = set_bits(val, ctrl->val, bit, mask);
}
ret = si4713_write_property(sdev, property, val);
if (ret < 0)
break;
if (mask)
val = ctrl->val;
break;
}
}
return ret;
}
static int si4713_write_econtrol_integers(struct si4713_device *sdev,
struct v4l2_ext_control *control)
{
s32 rval;
u32 *shadow = NULL, val = 0;
s32 bit = 0, mask = 0;
u16 property = 0;
int mul = 0;
unsigned long *table = NULL;
int size = 0;
rval = validate_range(&sdev->sd, control);
if (rval < 0)
goto exit;
rval = si4713_choose_econtrol_action(sdev, control->id, &shadow, &bit,
&mask, &property, &mul, &table, &size);
if (rval < 0)
goto exit;
val = control->value;
if (mul) {
val = control->value / mul;
} else if (table) {
rval = usecs_to_dev(control->value, table, size);
if (rval < 0)
goto exit;
val = rval;
rval = 0;
}
mutex_lock(&sdev->mutex);
if (sdev->power_state) {
if (mask) {
rval = si4713_read_property(sdev, property, &val);
if (rval < 0)
goto unlock;
val = set_bits(val, control->value, bit, mask);
}
rval = si4713_write_property(sdev, property, val);
if (rval < 0)
goto unlock;
if (mask)
val = control->value;
}
if (mul) {
*shadow = val * mul;
} else if (table) {
rval = dev_to_usecs(val, table, size);
if (rval < 0)
goto unlock;
*shadow = rval;
rval = 0;
} else {
*shadow = val;
}
unlock:
mutex_unlock(&sdev->mutex);
exit:
return rval;
}