/* 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;
}
