/**
* wl1273_fm_set_audio() - Set audio mode.
* @core: A pointer to the device struct.
* @new_mode: The new audio mode.
*
* Audio modes are WL1273_AUDIO_DIGITAL and WL1273_AUDIO_ANALOG.
*/
static int wl1273_fm_set_audio(struct wl1273_core *core, unsigned int new_mode)
{
int r = 0;
if (core->mode == WL1273_MODE_OFF ||
core->mode == WL1273_MODE_SUSPENDED)
return -EPERM;
if (core->mode == WL1273_MODE_RX && new_mode == WL1273_AUDIO_DIGITAL) {
r = wl1273_fm_write_cmd(core, WL1273_PCM_MODE_SET,
WL1273_PCM_DEF_MODE);
if (r)
goto out;
r = wl1273_fm_write_cmd(core, WL1273_I2S_MODE_CONFIG_SET,
core->i2s_mode);
if (r)
goto out;
r = wl1273_fm_write_cmd(core, WL1273_AUDIO_ENABLE,
WL1273_AUDIO_ENABLE_I2S);
if (r)
goto out;
} else if (core->mode == WL1273_MODE_RX &&
new_mode == WL1273_AUDIO_ANALOG) {
r = wl1273_fm_write_cmd(core, WL1273_AUDIO_ENABLE,
WL1273_AUDIO_ENABLE_ANALOG);
if (r)
goto out;
} else if (core->mode == WL1273_MODE_TX &&
new_mode == WL1273_AUDIO_DIGITAL) {
r = wl1273_fm_write_cmd(core, WL1273_I2S_MODE_CONFIG_SET,
core->i2s_mode);
if (r)
goto out;
r = wl1273_fm_write_cmd(core, WL1273_AUDIO_IO_SET,
WL1273_AUDIO_IO_SET_I2S);
if (r)
goto out;
} else if (core->mode == WL1273_MODE_TX &&
new_mode == WL1273_AUDIO_ANALOG) {
r = wl1273_fm_write_cmd(core, WL1273_AUDIO_IO_SET,
WL1273_AUDIO_IO_SET_ANALOG);
if (r)
goto out;
}
core->audio_mode = new_mode;
out:
return r;
}
/**
* wl1273_fm_set_volume() - Set volume.
* @core: A pointer to the device struct.
* @volume: The new volume value.
*/
static int wl1273_fm_set_volume(struct wl1273_core *core, unsigned int volume)
{
int r;
if (volume > WL1273_MAX_VOLUME)
return -EINVAL;
if (core->volume == volume)
return 0;
r = wl1273_fm_write_cmd(core, WL1273_VOLUME_SET, volume);
if (r)
return r;
core->volume = volume;
return 0;
}