static int msm8k_audio_dev_ctrl_ioctl(struct inode *inode, struct file *f,
unsigned int cmd, unsigned long arg)
{
int rc;
u32 uparam;
struct msm_mute_info m;
struct msm_vol_info v;
D("%s\n", __func__);
switch (cmd) {
case AUDIO_SWITCH_DEVICE:
if (copy_from_user(&uparam, (void *)arg,
sizeof(uparam)))
return CAD_RES_FAILURE;
rc = audio_switch_device(uparam);
break;
case AUDIO_SET_VOLUME:
if (copy_from_user(&uparam, (void *)arg,
sizeof(uparam)))
return CAD_RES_FAILURE;
rc = audio_set_device_volume(uparam);
break;
case AUDIO_SET_VOLUME_PATH:
if (copy_from_user(&v, (void *)arg,
sizeof(struct msm_vol_info)))
return CAD_RES_FAILURE;
rc = audio_set_device_volume_path(&v);
break;
case AUDIO_SET_MUTE:
rc = copy_from_user(&m, (void *)arg,
sizeof(struct msm_mute_info));
if (rc) {
pr_err("AUDIO_SET_MUTE copy from user failed\n");
break;
}
rc = audio_set_device_mute(&m);
break;
case AUDIO_SET_MAX_VOL_ALL:
rc = volume_set_max_vol_all();
break;
default:
rc = -EINVAL;
}
return rc;
}
static int snd_vol_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
int rc = 0;
rc = audio_set_device_volume(ucontrol->value.integer.value[0]);
if (rc)
printk(KERN_ERR "audio_set_device_volume failed\n");
else
qsd_glb_ctl.volume = ucontrol->value.integer.value[0];
return rc;
}