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401 lines
10 KiB
401 lines
10 KiB
/* amr-wbplus audio output device
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*
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* Copyright (C) 2008 Google, Inc.
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* Copyright (C) 2008 HTC Corporation
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* Copyright (c) 2010-2017, 2019 The Linux Foundation. All rights reserved.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <linux/msm_audio_amrwbplus.h>
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#include <linux/compat.h>
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#include "audio_utils_aio.h"
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static struct miscdevice audio_amrwbplus_misc;
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static struct ws_mgr audio_amrwbplus_ws_mgr;
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#ifdef CONFIG_DEBUG_FS
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static const struct file_operations audio_amrwbplus_debug_fops = {
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.read = audio_aio_debug_read,
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.open = audio_aio_debug_open,
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};
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static void config_debug_fs(struct q6audio_aio *audio)
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{
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if (audio != NULL) {
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char name[sizeof("msm_amrwbplus_") + 5];
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snprintf(name, sizeof(name), "msm_amrwbplus_%04x",
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audio->ac->session);
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audio->dentry = debugfs_create_file(name, S_IFREG | 0444,
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NULL, (void *)audio,
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&audio_amrwbplus_debug_fops);
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if (IS_ERR(audio->dentry))
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pr_debug("debugfs_create_file failed\n");
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}
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}
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#else
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static void config_debug_fs(struct q6audio_aio *audio)
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{
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}
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#endif
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static long audio_ioctl_shared(struct file *file, unsigned int cmd,
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void *arg)
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{
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struct asm_amrwbplus_cfg q6_amrwbplus_cfg;
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struct msm_audio_amrwbplus_config_v2 *amrwbplus_drv_config;
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struct q6audio_aio *audio = file->private_data;
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int rc = 0;
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switch (cmd) {
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case AUDIO_START:
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pr_err("%s[%pK]: AUDIO_START session_id[%d]\n", __func__,
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audio, audio->ac->session);
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if (audio->feedback == NON_TUNNEL_MODE) {
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/* Configure PCM output block */
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rc = q6asm_enc_cfg_blk_pcm(audio->ac,
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audio->pcm_cfg.sample_rate,
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audio->pcm_cfg.channel_count);
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if (rc < 0) {
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pr_err("pcm output block config failed\n");
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break;
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}
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}
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amrwbplus_drv_config =
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(struct msm_audio_amrwbplus_config_v2 *)audio->codec_cfg;
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q6_amrwbplus_cfg.size_bytes =
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amrwbplus_drv_config->size_bytes;
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q6_amrwbplus_cfg.version =
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amrwbplus_drv_config->version;
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q6_amrwbplus_cfg.num_channels =
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amrwbplus_drv_config->num_channels;
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q6_amrwbplus_cfg.amr_band_mode =
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amrwbplus_drv_config->amr_band_mode;
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q6_amrwbplus_cfg.amr_dtx_mode =
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amrwbplus_drv_config->amr_dtx_mode;
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q6_amrwbplus_cfg.amr_frame_fmt =
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amrwbplus_drv_config->amr_frame_fmt;
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q6_amrwbplus_cfg.amr_lsf_idx =
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amrwbplus_drv_config->amr_lsf_idx;
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rc = q6asm_media_format_block_amrwbplus(audio->ac,
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&q6_amrwbplus_cfg);
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if (rc < 0) {
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pr_err("q6asm_media_format_block_amrwb+ failed...\n");
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break;
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}
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rc = audio_aio_enable(audio);
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audio->eos_rsp = 0;
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audio->eos_flag = 0;
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if (!rc) {
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audio->enabled = 1;
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} else {
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audio->enabled = 0;
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pr_err("Audio Start procedure failed rc=%d\n", rc);
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break;
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}
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pr_debug("%s:AUDIO_START sessionid[%d]enable[%d]\n", __func__,
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audio->ac->session,
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audio->enabled);
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if (audio->stopped == 1)
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audio->stopped = 0;
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break;
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default:
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pr_err("%s: Unknown ioctl cmd = %d", __func__, cmd);
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rc = -EINVAL;
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break;
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}
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return rc;
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}
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static long audio_ioctl(struct file *file, unsigned int cmd,
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unsigned long arg)
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{
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struct q6audio_aio *audio = file->private_data;
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int rc = 0;
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switch (cmd) {
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case AUDIO_START: {
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rc = audio_ioctl_shared(file, cmd, (void *)arg);
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break;
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}
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case AUDIO_GET_AMRWBPLUS_CONFIG_V2: {
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if ((audio) && (arg) && (audio->codec_cfg)) {
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if (copy_to_user((void *)arg, audio->codec_cfg,
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sizeof(struct msm_audio_amrwbplus_config_v2))) {
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rc = -EFAULT;
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pr_err("%s: copy_to_user for AUDIO_GET_AMRWBPLUS_CONFIG_V2 failed\n",
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__func__);
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break;
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}
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} else {
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pr_err("%s: wb+ config v2 invalid parameters\n"
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, __func__);
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rc = -EFAULT;
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break;
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}
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break;
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}
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case AUDIO_SET_AMRWBPLUS_CONFIG_V2: {
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if ((audio) && (arg) && (audio->codec_cfg)) {
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if (copy_from_user(audio->codec_cfg, (void *)arg,
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sizeof(struct msm_audio_amrwbplus_config_v2))) {
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rc = -EFAULT;
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pr_err("%s: copy_from_user for AUDIO_SET_AMRWBPLUS_CONFIG_V2 failed\n",
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__func__);
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break;
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}
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} else {
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pr_err("%s: wb+ config invalid parameters\n",
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__func__);
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rc = -EFAULT;
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break;
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}
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break;
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}
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default: {
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pr_debug("%s[%pK]: Calling utils ioctl\n", __func__, audio);
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rc = audio->codec_ioctl(file, cmd, arg);
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break;
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}
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}
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return rc;
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}
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#ifdef CONFIG_COMPAT
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struct msm_audio_amrwbplus_config_v2_32 {
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u32 size_bytes;
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u32 version;
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u32 num_channels;
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u32 amr_band_mode;
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u32 amr_dtx_mode;
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u32 amr_frame_fmt;
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u32 amr_lsf_idx;
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};
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enum {
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AUDIO_GET_AMRWBPLUS_CONFIG_V2_32 = _IOR(AUDIO_IOCTL_MAGIC,
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(AUDIO_MAX_COMMON_IOCTL_NUM+2),
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struct msm_audio_amrwbplus_config_v2_32),
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AUDIO_SET_AMRWBPLUS_CONFIG_V2_32 = _IOW(AUDIO_IOCTL_MAGIC,
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(AUDIO_MAX_COMMON_IOCTL_NUM+3),
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struct msm_audio_amrwbplus_config_v2_32)
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};
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static long audio_compat_ioctl(struct file *file, unsigned int cmd,
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unsigned long arg)
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{
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struct q6audio_aio *audio = file->private_data;
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int rc = 0;
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switch (cmd) {
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case AUDIO_START: {
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rc = audio_ioctl_shared(file, cmd, (void *)arg);
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break;
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}
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case AUDIO_GET_AMRWBPLUS_CONFIG_V2_32: {
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if (audio && arg && (audio->codec_cfg)) {
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struct msm_audio_amrwbplus_config_v2 *amrwbplus_config;
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struct msm_audio_amrwbplus_config_v2_32
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amrwbplus_config_32;
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memset(&amrwbplus_config_32, 0,
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sizeof(amrwbplus_config_32));
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amrwbplus_config =
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(struct msm_audio_amrwbplus_config_v2 *)
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audio->codec_cfg;
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amrwbplus_config_32.size_bytes =
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amrwbplus_config->size_bytes;
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amrwbplus_config_32.version =
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amrwbplus_config->version;
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amrwbplus_config_32.num_channels =
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amrwbplus_config->num_channels;
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amrwbplus_config_32.amr_band_mode =
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amrwbplus_config->amr_band_mode;
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amrwbplus_config_32.amr_dtx_mode =
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amrwbplus_config->amr_dtx_mode;
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amrwbplus_config_32.amr_frame_fmt =
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amrwbplus_config->amr_frame_fmt;
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amrwbplus_config_32.amr_lsf_idx =
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amrwbplus_config->amr_lsf_idx;
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if (copy_to_user((void *)arg, &amrwbplus_config_32,
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sizeof(amrwbplus_config_32))) {
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rc = -EFAULT;
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pr_err("%s: copy_to_user for AUDIO_GET_AMRWBPLUS_CONFIG_V2_32 failed\n"
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, __func__);
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}
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} else {
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pr_err("%s: wb+ Get config v2 invalid parameters\n"
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, __func__);
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rc = -EFAULT;
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}
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break;
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}
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case AUDIO_SET_AMRWBPLUS_CONFIG_V2_32: {
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if ((audio) && (arg) && (audio->codec_cfg)) {
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struct msm_audio_amrwbplus_config_v2 *amrwbplus_config;
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struct msm_audio_amrwbplus_config_v2_32
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amrwbplus_config_32;
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if (copy_from_user(&amrwbplus_config_32, (void *)arg,
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sizeof(struct msm_audio_amrwbplus_config_v2_32))) {
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rc = -EFAULT;
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pr_err("%s: copy_from_user for AUDIO_SET_AMRWBPLUS_CONFIG_V2_32 failed\n"
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, __func__);
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break;
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}
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amrwbplus_config =
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(struct msm_audio_amrwbplus_config_v2 *)
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audio->codec_cfg;
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amrwbplus_config->size_bytes =
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amrwbplus_config_32.size_bytes;
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amrwbplus_config->version =
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amrwbplus_config_32.version;
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amrwbplus_config->num_channels =
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amrwbplus_config_32.num_channels;
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amrwbplus_config->amr_band_mode =
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amrwbplus_config_32.amr_band_mode;
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amrwbplus_config->amr_dtx_mode =
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amrwbplus_config_32.amr_dtx_mode;
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amrwbplus_config->amr_frame_fmt =
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amrwbplus_config_32.amr_frame_fmt;
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amrwbplus_config->amr_lsf_idx =
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amrwbplus_config_32.amr_lsf_idx;
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} else {
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pr_err("%s: wb+ config invalid parameters\n",
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__func__);
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rc = -EFAULT;
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}
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break;
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}
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default: {
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pr_debug("%s[%pK]: Calling utils ioctl\n", __func__, audio);
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rc = audio->codec_compat_ioctl(file, cmd, arg);
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break;
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}
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}
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return rc;
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}
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#else
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#define audio_compat_ioctl NULL
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#endif
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static int audio_open(struct inode *inode, struct file *file)
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{
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struct q6audio_aio *audio = NULL;
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int rc = 0;
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audio = kzalloc(sizeof(struct q6audio_aio), GFP_KERNEL);
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if (audio == NULL)
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return -ENOMEM;
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audio->codec_cfg =
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kzalloc(sizeof(struct msm_audio_amrwbplus_config_v2), GFP_KERNEL);
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if (audio->codec_cfg == NULL) {
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kfree(audio);
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return -ENOMEM;
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}
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audio->pcm_cfg.buffer_size = PCM_BUFSZ_MIN;
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audio->miscdevice = &audio_amrwbplus_misc;
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audio->wakelock_voted = false;
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audio->audio_ws_mgr = &audio_amrwbplus_ws_mgr;
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audio->ac =
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q6asm_audio_client_alloc((app_cb) q6_audio_cb, (void *)audio);
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if (!audio->ac) {
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pr_err("Could not allocate memory for audio client\n");
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kfree(audio->codec_cfg);
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kfree(audio);
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return -ENOMEM;
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}
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rc = audio_aio_open(audio, file);
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if (rc < 0) {
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pr_err_ratelimited("%s: audio_aio_open rc=%d\n",
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__func__, rc);
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goto fail;
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}
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/* open in T/NT mode */
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if ((file->f_mode & FMODE_WRITE) && (file->f_mode & FMODE_READ)) {
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rc = q6asm_open_read_write(audio->ac, FORMAT_LINEAR_PCM,
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FORMAT_AMR_WB_PLUS);
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if (rc < 0) {
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pr_err("amrwbplus NT mode Open failed rc=%d\n", rc);
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rc = -ENODEV;
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goto fail;
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}
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audio->feedback = NON_TUNNEL_MODE;
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audio->buf_cfg.frames_per_buf = 0x01;
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audio->buf_cfg.meta_info_enable = 0x01;
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} else if ((file->f_mode & FMODE_WRITE) &&
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!(file->f_mode & FMODE_READ)) {
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rc = q6asm_open_write(audio->ac, FORMAT_AMR_WB_PLUS);
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if (rc < 0) {
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pr_err("wb+ T mode Open failed rc=%d\n", rc);
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rc = -ENODEV;
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goto fail;
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}
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audio->feedback = TUNNEL_MODE;
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audio->buf_cfg.meta_info_enable = 0x00;
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} else {
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pr_err("audio_amrwbplus Not supported mode\n");
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rc = -EACCES;
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goto fail;
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}
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config_debug_fs(audio);
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pr_debug("%s: AMRWBPLUS dec success mode[%d]session[%d]\n", __func__,
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audio->feedback,
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audio->ac->session);
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return 0;
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fail:
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q6asm_audio_client_free(audio->ac);
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kfree(audio->codec_cfg);
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kfree(audio);
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return rc;
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}
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static const struct file_operations audio_amrwbplus_fops = {
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.owner = THIS_MODULE,
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.open = audio_open,
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.release = audio_aio_release,
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.unlocked_ioctl = audio_ioctl,
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.fsync = audio_aio_fsync,
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.compat_ioctl = audio_compat_ioctl
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};
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static struct miscdevice audio_amrwbplus_misc = {
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.minor = MISC_DYNAMIC_MINOR,
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.name = "msm_amrwbplus",
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.fops = &audio_amrwbplus_fops,
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};
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int __init audio_amrwbplus_init(void)
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{
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int ret = misc_register(&audio_amrwbplus_misc);
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if (ret == 0)
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device_init_wakeup(audio_amrwbplus_misc.this_device, true);
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audio_amrwbplus_ws_mgr.ref_cnt = 0;
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mutex_init(&audio_amrwbplus_ws_mgr.ws_lock);
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return ret;
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}
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void audio_amrwbplus_exit(void)
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{
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mutex_destroy(&audio_amrwbplus_ws_mgr.ws_lock);
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misc_deregister(&audio_amrwbplus_misc);
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}
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