360 lines
10 KiB
C
360 lines
10 KiB
C
/* Copyright (c) 2015, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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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/types.h>
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#include <linux/msm_audio_ape.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_ape_misc;
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static struct ws_mgr audio_ape_ws_mgr;
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static const struct file_operations audio_ape_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 struct dentry *config_debugfs_create_file(const char *name, void *data)
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{
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return debugfs_create_file(name, S_IFREG | S_IRUGO,
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NULL, (void *)data, &audio_ape_debug_fops);
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}
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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 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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struct asm_ape_cfg ape_cfg;
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struct msm_audio_ape_config *ape_config;
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pr_debug("%s[%p]: 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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ape_config = (struct msm_audio_ape_config *)audio->codec_cfg;
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ape_cfg.compatible_version = ape_config->compatibleVersion;
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ape_cfg.compression_level = ape_config->compressionLevel;
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ape_cfg.format_flags = ape_config->formatFlags;
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ape_cfg.blocks_per_frame = ape_config->blocksPerFrame;
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ape_cfg.final_frame_blocks = ape_config->finalFrameBlocks;
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ape_cfg.total_frames = ape_config->totalFrames;
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ape_cfg.bits_per_sample = ape_config->bitsPerSample;
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ape_cfg.num_channels = ape_config->numChannels;
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ape_cfg.sample_rate = ape_config->sampleRate;
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ape_cfg.seek_table_present = ape_config->seekTablePresent;
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pr_debug("%s: compatibleVersion %d compressionLevel %d formatFlags %d blocksPerFrame %d finalFrameBlocks %d totalFrames %d bitsPerSample %d numChannels %d sampleRate %d seekTablePresent %d\n",
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__func__, ape_config->compatibleVersion,
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ape_config->compressionLevel,
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ape_config->formatFlags,
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ape_config->blocksPerFrame,
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ape_config->finalFrameBlocks,
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ape_config->totalFrames,
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ape_config->bitsPerSample,
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ape_config->numChannels,
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ape_config->sampleRate,
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ape_config->seekTablePresent);
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/* Configure Media format block */
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rc = q6asm_media_format_block_ape(audio->ac, &ape_cfg,
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audio->ac->stream_id);
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if (rc < 0) {
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pr_err("cmd media format block 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("AUDIO_START success enable[%d]\n", 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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}
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default:
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pr_err("%s: Unknown ioctl cmd = %d", __func__, cmd);
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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, 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_APE_CONFIG: {
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if (copy_to_user((void *)arg, audio->codec_cfg,
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sizeof(struct msm_audio_ape_config))) {
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pr_err("%s:copy_to_user for AUDIO_GET_APE_CONFIG failed\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_APE_CONFIG: {
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if (copy_from_user(audio->codec_cfg, (void *)arg,
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sizeof(struct msm_audio_ape_config))) {
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pr_err("%s:copy_from_user for AUDIO_SET_APE_CONFIG failed\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[%p]: Calling utils ioctl\n", __func__, audio);
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rc = audio->codec_ioctl(file, cmd, arg);
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if (rc)
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pr_err("Failed in utils_ioctl: %d\n", rc);
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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_ape_config_32 {
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u16 compatibleVersion;
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u16 compressionLevel;
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u32 formatFlags;
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u32 blocksPerFrame;
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u32 finalFrameBlocks;
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u32 totalFrames;
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u16 bitsPerSample;
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u16 numChannels;
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u32 sampleRate;
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u32 seekTablePresent;
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};
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enum {
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AUDIO_GET_APE_CONFIG_32 = _IOR(AUDIO_IOCTL_MAGIC,
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(AUDIO_MAX_COMMON_IOCTL_NUM+0), struct msm_audio_ape_config_32),
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AUDIO_SET_APE_CONFIG_32 = _IOW(AUDIO_IOCTL_MAGIC,
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(AUDIO_MAX_COMMON_IOCTL_NUM+1), struct msm_audio_ape_config_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_APE_CONFIG_32: {
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struct msm_audio_ape_config *ape_config;
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struct msm_audio_ape_config_32 ape_config_32;
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ape_config = (struct msm_audio_ape_config *)audio->codec_cfg;
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ape_config_32.compatibleVersion = ape_config->compatibleVersion;
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ape_config_32.compressionLevel =
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ape_config->compressionLevel;
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ape_config_32.formatFlags = ape_config->formatFlags;
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ape_config_32.blocksPerFrame = ape_config->blocksPerFrame;
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ape_config_32.finalFrameBlocks = ape_config->finalFrameBlocks;
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ape_config_32.totalFrames = ape_config->totalFrames;
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ape_config_32.bitsPerSample = ape_config->bitsPerSample;
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ape_config_32.numChannels = ape_config->numChannels;
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ape_config_32.sampleRate = ape_config->sampleRate;
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ape_config_32.seekTablePresent = ape_config->seekTablePresent;
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if (copy_to_user((void *)arg, &ape_config_32,
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sizeof(ape_config_32))) {
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pr_err("%s: copy_to_user for GET_APE_CONFIG_32 failed\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_APE_CONFIG_32: {
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struct msm_audio_ape_config *ape_config;
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struct msm_audio_ape_config_32 ape_config_32;
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if (copy_from_user(&ape_config_32, (void *)arg,
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sizeof(ape_config_32))) {
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pr_err("%s: copy_from_user for SET_APE_CONFIG_32 failed\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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ape_config = (struct msm_audio_ape_config *)audio->codec_cfg;
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ape_config->compatibleVersion = ape_config_32.compatibleVersion;
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ape_config->compressionLevel =
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ape_config_32.compressionLevel;
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ape_config->formatFlags = ape_config_32.formatFlags;
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ape_config->blocksPerFrame = ape_config_32.blocksPerFrame;
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ape_config->finalFrameBlocks = ape_config_32.finalFrameBlocks;
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ape_config->totalFrames = ape_config_32.totalFrames;
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ape_config->bitsPerSample = ape_config_32.bitsPerSample;
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ape_config->numChannels = ape_config_32.numChannels;
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ape_config->sampleRate = ape_config_32.sampleRate;
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ape_config->seekTablePresent = ape_config_32.seekTablePresent;
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break;
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}
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default: {
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pr_debug("%s[%p]: Calling utils ioctl\n", __func__, audio);
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rc = audio->codec_compat_ioctl(file, cmd, arg);
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if (rc)
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pr_err("Failed in utils_ioctl: %d\n", rc);
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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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/* 4 bytes represents decoder number, 1 byte for terminate string */
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char name[sizeof "msm_ape_" + 5];
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audio = kzalloc(sizeof(struct q6audio_aio), GFP_KERNEL);
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if (!audio) {
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pr_err("Could not allocate memory for ape decode driver\n");
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return -ENOMEM;
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}
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audio->codec_cfg = kzalloc(sizeof(struct msm_audio_ape_config),
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GFP_KERNEL);
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if (!audio->codec_cfg) {
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pr_err("%s:Could not allocate memory for ape config\n",
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__func__);
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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_ape_misc;
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audio->wakelock_voted = false;
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audio->audio_ws_mgr = &audio_ape_ws_mgr;
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audio->ac = q6asm_audio_client_alloc((app_cb) q6_audio_cb,
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(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("%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_APE);
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if (rc < 0) {
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pr_err("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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/* open APE decoder, expected frames is always 1*/
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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_APE);
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if (rc < 0) {
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pr_err("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("Not supported mode\n");
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rc = -EACCES;
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goto fail;
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}
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snprintf(name, sizeof(name), "msm_ape_%04x", audio->ac->session);
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audio->dentry = config_debugfs_create_file(name, (void *)audio);
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if (IS_ERR_OR_NULL(audio->dentry))
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pr_debug("debugfs_create_file failed\n");
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pr_debug("%s:apedec 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 rc;
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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_ape_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_ape_misc = {
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.minor = MISC_DYNAMIC_MINOR,
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.name = "msm_ape",
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.fops = &audio_ape_fops,
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};
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static int __init audio_ape_init(void)
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{
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int ret = misc_register(&audio_ape_misc);
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if (ret == 0)
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device_init_wakeup(audio_ape_misc.this_device, true);
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audio_ape_ws_mgr.ref_cnt = 0;
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mutex_init(&audio_ape_ws_mgr.ws_lock);
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return ret;
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}
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device_initcall(audio_ape_init);
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