| /* Copyright (c) 2015-2017, The Linux Foundation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 and |
| * only version 2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| */ |
| |
| #include <linux/types.h> |
| #include <linux/msm_audio_ape.h> |
| #include <linux/compat.h> |
| #include "audio_utils_aio.h" |
| |
| static struct miscdevice audio_ape_misc; |
| static struct ws_mgr audio_ape_ws_mgr; |
| |
| static const struct file_operations audio_ape_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_ape_debug_fops); |
| } |
| |
| 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_ape_cfg ape_cfg; |
| struct msm_audio_ape_config *ape_config; |
| |
| 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(audio->ac, |
| audio->pcm_cfg.sample_rate, |
| audio->pcm_cfg.channel_count); |
| if (rc < 0) { |
| pr_err("pcm output block config failed\n"); |
| break; |
| } |
| } |
| ape_config = (struct msm_audio_ape_config *)audio->codec_cfg; |
| ape_cfg.compatible_version = ape_config->compatibleVersion; |
| ape_cfg.compression_level = ape_config->compressionLevel; |
| ape_cfg.format_flags = ape_config->formatFlags; |
| ape_cfg.blocks_per_frame = ape_config->blocksPerFrame; |
| ape_cfg.final_frame_blocks = ape_config->finalFrameBlocks; |
| ape_cfg.total_frames = ape_config->totalFrames; |
| ape_cfg.bits_per_sample = ape_config->bitsPerSample; |
| ape_cfg.num_channels = ape_config->numChannels; |
| ape_cfg.sample_rate = ape_config->sampleRate; |
| ape_cfg.seek_table_present = ape_config->seekTablePresent; |
| pr_debug("%s: compatibleVersion %d compressionLevel %d formatFlags %d blocksPerFrame %d finalFrameBlocks %d totalFrames %d bitsPerSample %d numChannels %d sampleRate %d seekTablePresent %d\n", |
| __func__, ape_config->compatibleVersion, |
| ape_config->compressionLevel, |
| ape_config->formatFlags, |
| ape_config->blocksPerFrame, |
| ape_config->finalFrameBlocks, |
| ape_config->totalFrames, |
| ape_config->bitsPerSample, |
| ape_config->numChannels, |
| ape_config->sampleRate, |
| ape_config->seekTablePresent); |
| /* Configure Media format block */ |
| rc = q6asm_media_format_block_ape(audio->ac, &ape_cfg, |
| audio->ac->stream_id); |
| if (rc < 0) { |
| pr_err("cmd media format block failed\n"); |
| 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("Audio Start procedure failed rc=%d\n", rc); |
| break; |
| } |
| pr_debug("AUDIO_START success enable[%d]\n", audio->enabled); |
| if (audio->stopped == 1) |
| audio->stopped = 0; |
| break; |
| } |
| default: |
| pr_err("%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_APE_CONFIG: { |
| if (copy_to_user((void *)arg, audio->codec_cfg, |
| sizeof(struct msm_audio_ape_config))) { |
| pr_err("%s:copy_to_user for AUDIO_GET_APE_CONFIG failed\n", |
| __func__); |
| rc = -EFAULT; |
| break; |
| } |
| break; |
| } |
| case AUDIO_SET_APE_CONFIG: { |
| if (copy_from_user(audio->codec_cfg, (void *)arg, |
| sizeof(struct msm_audio_ape_config))) { |
| pr_err("%s:copy_from_user for AUDIO_SET_APE_CONFIG failed\n", |
| __func__); |
| rc = -EFAULT; |
| break; |
| } |
| break; |
| } |
| default: { |
| pr_debug("%s[%pK]: Calling utils ioctl\n", __func__, audio); |
| rc = audio->codec_ioctl(file, cmd, arg); |
| if (rc) |
| pr_err("Failed in utils_ioctl: %d\n", rc); |
| break; |
| } |
| } |
| return rc; |
| } |
| |
| #ifdef CONFIG_COMPAT |
| struct msm_audio_ape_config_32 { |
| u16 compatibleVersion; |
| u16 compressionLevel; |
| u32 formatFlags; |
| u32 blocksPerFrame; |
| u32 finalFrameBlocks; |
| u32 totalFrames; |
| u16 bitsPerSample; |
| u16 numChannels; |
| u32 sampleRate; |
| u32 seekTablePresent; |
| |
| }; |
| |
| enum { |
| AUDIO_GET_APE_CONFIG_32 = _IOR(AUDIO_IOCTL_MAGIC, |
| (AUDIO_MAX_COMMON_IOCTL_NUM+0), struct msm_audio_ape_config_32), |
| AUDIO_SET_APE_CONFIG_32 = _IOW(AUDIO_IOCTL_MAGIC, |
| (AUDIO_MAX_COMMON_IOCTL_NUM+1), struct msm_audio_ape_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_APE_CONFIG_32: { |
| struct msm_audio_ape_config *ape_config; |
| struct msm_audio_ape_config_32 ape_config_32; |
| |
| memset(&ape_config_32, 0, sizeof(ape_config_32)); |
| |
| ape_config = (struct msm_audio_ape_config *)audio->codec_cfg; |
| ape_config_32.compatibleVersion = ape_config->compatibleVersion; |
| ape_config_32.compressionLevel = |
| ape_config->compressionLevel; |
| ape_config_32.formatFlags = ape_config->formatFlags; |
| ape_config_32.blocksPerFrame = ape_config->blocksPerFrame; |
| ape_config_32.finalFrameBlocks = ape_config->finalFrameBlocks; |
| ape_config_32.totalFrames = ape_config->totalFrames; |
| ape_config_32.bitsPerSample = ape_config->bitsPerSample; |
| ape_config_32.numChannels = ape_config->numChannels; |
| ape_config_32.sampleRate = ape_config->sampleRate; |
| ape_config_32.seekTablePresent = ape_config->seekTablePresent; |
| |
| if (copy_to_user((void *)arg, &ape_config_32, |
| sizeof(ape_config_32))) { |
| pr_err("%s: copy_to_user for GET_APE_CONFIG_32 failed\n", |
| __func__); |
| rc = -EFAULT; |
| break; |
| } |
| break; |
| } |
| case AUDIO_SET_APE_CONFIG_32: { |
| struct msm_audio_ape_config *ape_config; |
| struct msm_audio_ape_config_32 ape_config_32; |
| |
| if (copy_from_user(&ape_config_32, (void *)arg, |
| sizeof(ape_config_32))) { |
| pr_err("%s: copy_from_user for SET_APE_CONFIG_32 failed\n" |
| , __func__); |
| rc = -EFAULT; |
| break; |
| } |
| ape_config = (struct msm_audio_ape_config *)audio->codec_cfg; |
| ape_config->compatibleVersion = ape_config_32.compatibleVersion; |
| ape_config->compressionLevel = |
| ape_config_32.compressionLevel; |
| ape_config->formatFlags = ape_config_32.formatFlags; |
| ape_config->blocksPerFrame = ape_config_32.blocksPerFrame; |
| ape_config->finalFrameBlocks = ape_config_32.finalFrameBlocks; |
| ape_config->totalFrames = ape_config_32.totalFrames; |
| ape_config->bitsPerSample = ape_config_32.bitsPerSample; |
| ape_config->numChannels = ape_config_32.numChannels; |
| ape_config->sampleRate = ape_config_32.sampleRate; |
| ape_config->seekTablePresent = ape_config_32.seekTablePresent; |
| |
| break; |
| } |
| default: { |
| pr_debug("%s[%pK]: Calling utils ioctl\n", __func__, audio); |
| rc = audio->codec_compat_ioctl(file, cmd, arg); |
| if (rc) |
| pr_err("Failed in utils_ioctl: %d\n", rc); |
| 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_ape_" + 5]; |
| |
| audio = kzalloc(sizeof(struct q6audio_aio), GFP_KERNEL); |
| if (!audio) |
| return -ENOMEM; |
| |
| audio->codec_cfg = kzalloc(sizeof(struct msm_audio_ape_config), |
| GFP_KERNEL); |
| if (!audio->codec_cfg) { |
| kfree(audio); |
| return -ENOMEM; |
| } |
| |
| audio->pcm_cfg.buffer_size = PCM_BUFSZ_MIN; |
| audio->miscdevice = &audio_ape_misc; |
| audio->wakelock_voted = false; |
| audio->audio_ws_mgr = &audio_ape_ws_mgr; |
| |
| 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->codec_cfg); |
| kfree(audio); |
| return -ENOMEM; |
| } |
| rc = audio_aio_open(audio, file); |
| if (rc < 0) { |
| pr_err("%s: audio_aio_open rc=%d\n", |
| __func__, rc); |
| goto fail; |
| } |
| /* 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_APE); |
| if (rc < 0) { |
| pr_err("NT mode Open failed rc=%d\n", rc); |
| rc = -ENODEV; |
| goto fail; |
| } |
| audio->feedback = NON_TUNNEL_MODE; |
| /* open APE 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_APE); |
| 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; |
| } |
| |
| snprintf(name, sizeof(name), "msm_ape_%04x", audio->ac->session); |
| audio->dentry = config_debugfs_create_file(name, (void *)audio); |
| |
| if (IS_ERR_OR_NULL(audio->dentry)) |
| pr_debug("debugfs_create_file failed\n"); |
| pr_debug("%s:apedec 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 const struct file_operations audio_ape_fops = { |
| .owner = THIS_MODULE, |
| .open = audio_open, |
| .release = audio_aio_release, |
| .unlocked_ioctl = audio_ioctl, |
| .fsync = audio_aio_fsync, |
| .compat_ioctl = audio_compat_ioctl |
| }; |
| |
| static struct miscdevice audio_ape_misc = { |
| .minor = MISC_DYNAMIC_MINOR, |
| .name = "msm_ape", |
| .fops = &audio_ape_fops, |
| }; |
| |
| static int __init audio_ape_init(void) |
| { |
| int ret = misc_register(&audio_ape_misc); |
| |
| if (ret == 0) |
| device_init_wakeup(audio_ape_misc.this_device, true); |
| audio_ape_ws_mgr.ref_cnt = 0; |
| mutex_init(&audio_ape_ws_mgr.ws_lock); |
| |
| return ret; |
| } |
| |
| device_initcall(audio_ape_init); |