You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
389 lines
10 KiB
389 lines
10 KiB
// SPDX-License-Identifier: GPL-2.0-only
|
|
/* Copyright (c) 2016-2017, 2019-2020, The Linux Foundation. All rights reserved.
|
|
*/
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/msm_audio_g711_dec.h>
|
|
#include <linux/compat.h>
|
|
#include "audio_utils_aio.h"
|
|
|
|
static struct miscdevice audio_g711mlaw_misc;
|
|
static struct ws_mgr audio_g711_ws_mgr;
|
|
|
|
#ifdef CONFIG_DEBUG_FS
|
|
static const struct file_operations audio_g711_debug_fops = {
|
|
.read = audio_aio_debug_read,
|
|
.open = audio_aio_debug_open,
|
|
};
|
|
|
|
static struct dentry *config_debugfs_create_file(const char *name, void *data)
|
|
{
|
|
return debugfs_create_file(name, S_IFREG | 0444,
|
|
NULL, (void *)data, &audio_g711_debug_fops);
|
|
}
|
|
#endif
|
|
|
|
static int g711_channel_map(u8 *channel_mapping, uint32_t channels);
|
|
|
|
static long audio_ioctl_shared(struct file *file, unsigned int cmd,
|
|
void *arg)
|
|
{
|
|
struct q6audio_aio *audio = file->private_data;
|
|
int rc = 0;
|
|
|
|
switch (cmd) {
|
|
case AUDIO_START: {
|
|
struct asm_g711_dec_cfg g711_dec_cfg;
|
|
struct msm_audio_g711_dec_config *g711_dec_config;
|
|
u8 channel_mapping[PCM_FORMAT_MAX_NUM_CHANNEL];
|
|
|
|
memset(channel_mapping, 0, PCM_FORMAT_MAX_NUM_CHANNEL);
|
|
memset(&g711_dec_cfg, 0, sizeof(g711_dec_cfg));
|
|
|
|
if (g711_channel_map(channel_mapping,
|
|
audio->pcm_cfg.channel_count)) {
|
|
pr_err("%s: setting channel map failed %d\n",
|
|
__func__, audio->pcm_cfg.channel_count);
|
|
}
|
|
|
|
pr_debug("%s[%pK]: AUDIO_START session_id[%d]\n", __func__,
|
|
audio, audio->ac->session);
|
|
if (audio->feedback == NON_TUNNEL_MODE) {
|
|
/* Configure PCM output block */
|
|
rc = q6asm_enc_cfg_blk_pcm_v2(audio->ac,
|
|
audio->pcm_cfg.sample_rate,
|
|
audio->pcm_cfg.channel_count,
|
|
16, /*bits per sample*/
|
|
false, false, channel_mapping);
|
|
if (rc < 0) {
|
|
pr_err("%s: pcm output block config failed rc=%d\n",
|
|
__func__, rc);
|
|
break;
|
|
}
|
|
}
|
|
g711_dec_config =
|
|
(struct msm_audio_g711_dec_config *)audio->codec_cfg;
|
|
g711_dec_cfg.sample_rate = g711_dec_config->sample_rate;
|
|
/* Configure Media format block */
|
|
rc = q6asm_media_format_block_g711(audio->ac, &g711_dec_cfg,
|
|
audio->ac->stream_id);
|
|
if (rc < 0) {
|
|
pr_err("%s: cmd media format block failed rc=%d\n",
|
|
__func__, rc);
|
|
break;
|
|
}
|
|
rc = audio_aio_enable(audio);
|
|
audio->eos_rsp = 0;
|
|
audio->eos_flag = 0;
|
|
if (!rc) {
|
|
audio->enabled = 1;
|
|
} else {
|
|
audio->enabled = 0;
|
|
pr_err("%s: Audio Start procedure failed rc=%d\n",
|
|
__func__, rc);
|
|
break;
|
|
}
|
|
pr_debug("%s: AUDIO_START success enable[%d]\n",
|
|
__func__, audio->enabled);
|
|
if (audio->stopped == 1)
|
|
audio->stopped = 0;
|
|
break;
|
|
}
|
|
default:
|
|
pr_debug("%s: Unknown ioctl cmd = %d", __func__, cmd);
|
|
break;
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
static long audio_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
|
|
{
|
|
struct q6audio_aio *audio = file->private_data;
|
|
int rc = 0;
|
|
|
|
switch (cmd) {
|
|
case AUDIO_START: {
|
|
rc = audio_ioctl_shared(file, cmd, (void *)arg);
|
|
break;
|
|
}
|
|
case AUDIO_GET_G711_DEC_CONFIG: {
|
|
if (copy_to_user((void *)arg, audio->codec_cfg,
|
|
sizeof(struct msm_audio_g711_dec_config))) {
|
|
pr_err("%s: AUDIO_GET_G711_DEC_CONFIG failed\n",
|
|
__func__);
|
|
rc = -EFAULT;
|
|
}
|
|
break;
|
|
}
|
|
case AUDIO_SET_G711_DEC_CONFIG: {
|
|
if (copy_from_user(audio->codec_cfg, (void *)arg,
|
|
sizeof(struct msm_audio_g711_dec_config))) {
|
|
pr_err("%s: AUDIO_SET_G711_DEC_CONFIG failed\n",
|
|
__func__);
|
|
rc = -EFAULT;
|
|
}
|
|
break;
|
|
}
|
|
default: {
|
|
rc = audio->codec_ioctl(file, cmd, arg);
|
|
if (rc)
|
|
pr_err("%s: Failed in audio_aio_ioctl: %d cmd=%d\n",
|
|
__func__, rc, cmd);
|
|
break;
|
|
}
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
#ifdef CONFIG_COMPAT
|
|
struct msm_audio_g711_dec_config_32 {
|
|
u32 sample_rate;
|
|
};
|
|
|
|
enum {
|
|
AUDIO_SET_G711_DEC_CONFIG_32 = _IOW(AUDIO_IOCTL_MAGIC,
|
|
(AUDIO_MAX_COMMON_IOCTL_NUM+0), struct msm_audio_g711_dec_config_32),
|
|
AUDIO_GET_G711_DEC_CONFIG_32 = _IOR(AUDIO_IOCTL_MAGIC,
|
|
(AUDIO_MAX_COMMON_IOCTL_NUM+1), struct msm_audio_g711_dec_config_32)
|
|
};
|
|
|
|
static long audio_compat_ioctl(struct file *file, unsigned int cmd,
|
|
unsigned long arg)
|
|
{
|
|
struct q6audio_aio *audio = file->private_data;
|
|
int rc = 0;
|
|
|
|
switch (cmd) {
|
|
case AUDIO_START: {
|
|
rc = audio_ioctl_shared(file, cmd, (void *)arg);
|
|
break;
|
|
}
|
|
case AUDIO_GET_G711_DEC_CONFIG_32: {
|
|
struct msm_audio_g711_dec_config *g711_dec_config;
|
|
struct msm_audio_g711_dec_config_32 g711_dec_config_32;
|
|
|
|
memset(&g711_dec_config_32, 0, sizeof(g711_dec_config_32));
|
|
|
|
g711_dec_config =
|
|
(struct msm_audio_g711_dec_config *)audio->codec_cfg;
|
|
g711_dec_config_32.sample_rate = g711_dec_config->sample_rate;
|
|
|
|
if (copy_to_user((void *)arg, &g711_dec_config_32,
|
|
sizeof(g711_dec_config_32))) {
|
|
pr_err("%s: copy_to_user for AUDIO_GET_G711_DEC_CONFIG failed\n",
|
|
__func__);
|
|
rc = -EFAULT;
|
|
}
|
|
break;
|
|
}
|
|
case AUDIO_SET_G711_DEC_CONFIG_32: {
|
|
struct msm_audio_g711_dec_config *g711_dec_config;
|
|
struct msm_audio_g711_dec_config_32 g711_dec_config_32;
|
|
|
|
memset(&g711_dec_config_32, 0, sizeof(g711_dec_config_32));
|
|
|
|
if (copy_from_user(&g711_dec_config_32, (void *)arg,
|
|
sizeof(g711_dec_config_32))) {
|
|
pr_err("%s: copy_from_user for AUDIO_SET_G711_DEC_CONFIG failed\n",
|
|
__func__);
|
|
rc = -EFAULT;
|
|
break;
|
|
}
|
|
g711_dec_config =
|
|
(struct msm_audio_g711_dec_config *)audio->codec_cfg;
|
|
g711_dec_config->sample_rate = g711_dec_config_32.sample_rate;
|
|
|
|
break;
|
|
}
|
|
default: {
|
|
rc = audio->codec_compat_ioctl(file, cmd, arg);
|
|
if (rc)
|
|
pr_err("%s: Failed in audio_aio_compat_ioctl: %d cmd=%d\n",
|
|
__func__, rc, cmd);
|
|
break;
|
|
}
|
|
}
|
|
return rc;
|
|
}
|
|
#else
|
|
#define audio_compat_ioctl NULL
|
|
#endif
|
|
|
|
static int audio_open(struct inode *inode, struct file *file)
|
|
{
|
|
struct q6audio_aio *audio = NULL;
|
|
int rc = 0;
|
|
/* 4 bytes represents decoder number, 1 byte for terminate string */
|
|
char name[sizeof "msm_g711_" + 5];
|
|
|
|
audio = kzalloc(sizeof(struct q6audio_aio), GFP_KERNEL);
|
|
|
|
if (!audio)
|
|
return -ENOMEM;
|
|
audio->codec_cfg = kzalloc(sizeof(struct msm_audio_g711_dec_config),
|
|
GFP_KERNEL);
|
|
if (!audio->codec_cfg) {
|
|
kfree(audio);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
audio->pcm_cfg.buffer_size = PCM_BUFSZ_MIN;
|
|
audio->miscdevice = &audio_g711mlaw_misc;
|
|
audio->wakelock_voted = false;
|
|
audio->audio_ws_mgr = &audio_g711_ws_mgr;
|
|
|
|
init_waitqueue_head(&audio->event_wait);
|
|
|
|
audio->ac = q6asm_audio_client_alloc((app_cb) q6_audio_cb,
|
|
(void *)audio);
|
|
|
|
if (!audio->ac) {
|
|
pr_err("%s: Could not allocate memory for audio client\n",
|
|
__func__);
|
|
kfree(audio->codec_cfg);
|
|
kfree(audio);
|
|
return -ENOMEM;
|
|
}
|
|
rc = audio_aio_open(audio, file);
|
|
if (rc < 0) {
|
|
pr_err_ratelimited("%s: audio_aio_open rc=%d\n",
|
|
__func__, rc);
|
|
goto fail;
|
|
}
|
|
/* open in T/NT mode */ /*foramt:G711_ALAW*/
|
|
if ((file->f_mode & FMODE_WRITE) && (file->f_mode & FMODE_READ)) {
|
|
rc = q6asm_open_read_write(audio->ac, FORMAT_LINEAR_PCM,
|
|
FORMAT_G711_MLAW_FS);
|
|
if (rc < 0) {
|
|
pr_err("%s: NT mode Open failed rc=%d\n", __func__, rc);
|
|
goto fail;
|
|
}
|
|
audio->feedback = NON_TUNNEL_MODE;
|
|
/* open G711 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_G711_MLAW_FS);
|
|
if (rc < 0) {
|
|
pr_err("%s: T mode Open failed rc=%d\n", __func__, rc);
|
|
goto fail;
|
|
}
|
|
audio->feedback = TUNNEL_MODE;
|
|
audio->buf_cfg.meta_info_enable = 0x00;
|
|
} else {
|
|
pr_err("%s: %d mode is not supported\n", __func__,
|
|
file->f_mode);
|
|
rc = -EACCES;
|
|
goto fail;
|
|
}
|
|
|
|
snprintf(name, sizeof(name), "msm_g711_%04x", audio->ac->session);
|
|
#ifdef CONFIG_DEBUG_FS
|
|
audio->dentry = config_debugfs_create_file(name, (void *)audio);
|
|
|
|
if (IS_ERR_OR_NULL(audio->dentry))
|
|
pr_debug("%s: debugfs_create_file failed\n", __func__);
|
|
#endif
|
|
pr_debug("%s: g711dec success mode[%d]session[%d]\n", __func__,
|
|
audio->feedback,
|
|
audio->ac->session);
|
|
return rc;
|
|
fail:
|
|
q6asm_audio_client_free(audio->ac);
|
|
kfree(audio->codec_cfg);
|
|
kfree(audio);
|
|
return rc;
|
|
}
|
|
|
|
static int g711_channel_map(u8 *channel_mapping, uint32_t channels)
|
|
{
|
|
u8 *lchannel_mapping;
|
|
|
|
lchannel_mapping = channel_mapping;
|
|
pr_debug("%s: channels passed: %d\n", __func__, channels);
|
|
if (channels == 1) {
|
|
lchannel_mapping[0] = PCM_CHANNEL_FC;
|
|
} else if (channels == 2) {
|
|
lchannel_mapping[0] = PCM_CHANNEL_FL;
|
|
lchannel_mapping[1] = PCM_CHANNEL_FR;
|
|
} else if (channels == 3) {
|
|
lchannel_mapping[0] = PCM_CHANNEL_FC;
|
|
lchannel_mapping[1] = PCM_CHANNEL_FL;
|
|
lchannel_mapping[2] = PCM_CHANNEL_FR;
|
|
} else if (channels == 4) {
|
|
lchannel_mapping[0] = PCM_CHANNEL_FC;
|
|
lchannel_mapping[1] = PCM_CHANNEL_FL;
|
|
lchannel_mapping[2] = PCM_CHANNEL_FR;
|
|
lchannel_mapping[3] = PCM_CHANNEL_CS;
|
|
} else if (channels == 5) {
|
|
lchannel_mapping[0] = PCM_CHANNEL_FC;
|
|
lchannel_mapping[1] = PCM_CHANNEL_FL;
|
|
lchannel_mapping[2] = PCM_CHANNEL_FR;
|
|
lchannel_mapping[3] = PCM_CHANNEL_LS;
|
|
lchannel_mapping[4] = PCM_CHANNEL_RS;
|
|
} else if (channels == 6) {
|
|
lchannel_mapping[0] = PCM_CHANNEL_FC;
|
|
lchannel_mapping[1] = PCM_CHANNEL_FL;
|
|
lchannel_mapping[2] = PCM_CHANNEL_FR;
|
|
lchannel_mapping[3] = PCM_CHANNEL_LS;
|
|
lchannel_mapping[4] = PCM_CHANNEL_RS;
|
|
lchannel_mapping[5] = PCM_CHANNEL_LFE;
|
|
} else if (channels == 7) {
|
|
lchannel_mapping[0] = PCM_CHANNEL_FC;
|
|
lchannel_mapping[1] = PCM_CHANNEL_FL;
|
|
lchannel_mapping[2] = PCM_CHANNEL_FR;
|
|
lchannel_mapping[3] = PCM_CHANNEL_LS;
|
|
lchannel_mapping[4] = PCM_CHANNEL_RS;
|
|
lchannel_mapping[5] = PCM_CHANNEL_CS;
|
|
lchannel_mapping[6] = PCM_CHANNEL_LFE;
|
|
} else if (channels == 8) {
|
|
lchannel_mapping[0] = PCM_CHANNEL_FC;
|
|
lchannel_mapping[1] = PCM_CHANNEL_FLC;
|
|
lchannel_mapping[2] = PCM_CHANNEL_FRC;
|
|
lchannel_mapping[3] = PCM_CHANNEL_FL;
|
|
lchannel_mapping[4] = PCM_CHANNEL_FR;
|
|
lchannel_mapping[5] = PCM_CHANNEL_LS;
|
|
lchannel_mapping[6] = PCM_CHANNEL_RS;
|
|
lchannel_mapping[7] = PCM_CHANNEL_LFE;
|
|
} else {
|
|
pr_err("%s: ERROR.unsupported num_ch = %u\n",
|
|
__func__, channels);
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static const struct file_operations audio_g711_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = audio_open,
|
|
.release = audio_aio_release,
|
|
.unlocked_ioctl = audio_ioctl,
|
|
.compat_ioctl = audio_compat_ioctl,
|
|
.fsync = audio_aio_fsync,
|
|
};
|
|
|
|
static struct miscdevice audio_g711mlaw_misc = {
|
|
.minor = MISC_DYNAMIC_MINOR,
|
|
.name = "msm_g711mlaw",
|
|
.fops = &audio_g711_fops,
|
|
};
|
|
|
|
int __init audio_g711mlaw_init(void)
|
|
{
|
|
int ret = misc_register(&audio_g711mlaw_misc);
|
|
|
|
if (ret == 0)
|
|
device_init_wakeup(audio_g711mlaw_misc.this_device, true);
|
|
audio_g711_ws_mgr.ref_cnt = 0;
|
|
mutex_init(&audio_g711_ws_mgr.ws_lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
void audio_g711mlaw_exit(void)
|
|
{
|
|
mutex_destroy(&audio_g711_ws_mgr.ws_lock);
|
|
misc_deregister(&audio_g711mlaw_misc);
|
|
}
|
|
|
|
|