static int msm_compr_set_volume(struct snd_compr_stream *cstream,
uint32_t volume_l, uint32_t volume_r)
{
struct msm_compr_audio *prtd;
int rc = 0;
pr_debug("%s: volume_l %d volume_r %d\n",
__func__, volume_l, volume_r);
prtd = cstream->runtime->private_data;
if (prtd && prtd->audio_client) {
if (volume_l != volume_r) {
pr_debug("%s: call q6asm_set_lrgain\n", __func__);
rc = q6asm_set_lrgain(prtd->audio_client,
volume_l, volume_r);
} else {
pr_debug("%s: call q6asm_set_volume\n", __func__);
rc = q6asm_set_volume(prtd->audio_client, volume_l);
}
if (rc < 0) {
pr_err("%s: Send Volume command failed rc=%d\n",
__func__, rc);
}
}
return rc;
}
int compr_set_volume(unsigned volume)
{
int rc = 0;
pr_info("[AUD]%s, vol %d -> %d\n", __func__, compr_msm_global.volume, volume);
if (compr_msm_global.prtd && compr_msm_global.prtd->audio_client) {
rc = q6asm_set_volume(compr_msm_global.prtd->audio_client, volume);
if (rc < 0) {
pr_err("[AUD]%s: Send Volume command failed"
" rc=%d\n", __func__, rc);
}
}
compr_msm_global.volume = volume;
return rc;
}
static int audio_open(struct inode *inode, struct file *file)
{
struct q6audio_aio *audio = NULL;
int rc = 0;
struct asm_softpause_params softpause = {
.enable = SOFT_PAUSE_ENABLE,
.period = SOFT_PAUSE_PERIOD * 3,
.step = SOFT_PAUSE_STEP,
.rampingcurve = SOFT_PAUSE_CURVE_LINEAR,
};
struct asm_softvolume_params softvol = {
.period = SOFT_VOLUME_PERIOD,
.step = SOFT_VOLUME_STEP,
.rampingcurve = SOFT_VOLUME_CURVE_LINEAR,
};
#ifdef CONFIG_DEBUG_FS
/* 4 bytes represents decoder number, 1 byte for terminate string */
char name[sizeof "msm_mp3_" + 5];
#endif
audio = kzalloc(sizeof(struct q6audio_aio), GFP_KERNEL);
if (audio == NULL) {
pr_err("Could not allocate memory for mp3 decode driver\n");
return -ENOMEM;
}
audio->pcm_cfg.buffer_size = PCM_BUFSZ_MIN;
audio->ac = q6asm_audio_client_alloc((app_cb) q6_audio_cb,
(void *)audio);
if (!audio->ac) {
pr_err("Could not allocate memory for audio client\n");
kfree(audio);
return -ENOMEM;
}
/* open in T/NT mode */
if ((file->f_mode & FMODE_WRITE) && (file->f_mode & FMODE_READ)) {
rc = q6asm_open_read_write(audio->ac, FORMAT_LINEAR_PCM,
FORMAT_MP3);
if (rc < 0) {
pr_err("NT mode Open failed rc=%d\n", rc);
rc = -ENODEV;
goto fail;
}
audio->feedback = NON_TUNNEL_MODE;
/* open MP3 decoder, expected frames is always 1
audio->buf_cfg.frames_per_buf = 0x01;*/
audio->buf_cfg.meta_info_enable = 0x01;
} else if ((file->f_mode & FMODE_WRITE) &&
!(file->f_mode & FMODE_READ)) {
rc = q6asm_open_write(audio->ac, FORMAT_MP3);
if (rc < 0) {
pr_err("T mode Open failed rc=%d\n", rc);
rc = -ENODEV;
goto fail;
}
audio->feedback = TUNNEL_MODE;
audio->buf_cfg.meta_info_enable = 0x00;
} else {
pr_err("Not supported mode\n");
rc = -EACCES;
goto fail;
}
rc = audio_aio_open(audio, file);
#ifdef CONFIG_DEBUG_FS
snprintf(name, sizeof name, "msm_mp3_%04x", audio->ac->session);
audio->dentry = debugfs_create_file(name, S_IFREG | S_IRUGO,
NULL, (void *)audio,
&audio_mp3_debug_fops);
if (IS_ERR(audio->dentry))
pr_debug("debugfs_create_file failed\n");
#endif
if (softpause.rampingcurve == SOFT_PAUSE_CURVE_LINEAR)
softpause.step = SOFT_PAUSE_STEP_LINEAR;
if (softvol.rampingcurve == SOFT_VOLUME_CURVE_LINEAR)
softvol.step = SOFT_VOLUME_STEP_LINEAR;
rc = q6asm_set_volume(audio->ac, 0);
if (rc < 0)
pr_err("%s: Send Volume command failed rc=%d\n",
__func__, rc);
rc = q6asm_set_softpause(audio->ac, &softpause);
if (rc < 0)
pr_err("%s: Send SoftPause Param failed rc=%d\n",
__func__, rc);
rc = q6asm_set_softvolume(audio->ac, &softvol);
if (rc < 0)
pr_err("%s: Send SoftVolume Param failed rc=%d\n",
__func__, rc);
/* disable mute by default */
rc = q6asm_set_mute(audio->ac, 0);
if (rc < 0)
pr_err("%s: Send mute command failed rc=%d\n",
__func__, rc);
pr_info("%s:mp3dec success mode[%d]session[%d]\n", __func__,
audio->feedback,
audio->ac->session);
return rc;
fail:
q6asm_audio_client_free(audio->ac);
kfree(audio);
return rc;
}
static const struct file_operations audio_mp3_fops = {
.owner = THIS_MODULE,
.open = audio_open,
.release = audio_aio_release,
.unlocked_ioctl = audio_ioctl,
.fsync = audio_aio_fsync,
};
struct miscdevice audio_mp3_misc = {
.minor = MISC_DYNAMIC_MINOR,
.name = "msm_mp3",
.fops = &audio_mp3_fops,
};
static int __init audio_mp3_init(void)
{
return misc_register(&audio_mp3_misc);
}
device_initcall(audio_mp3_init);
