diff options
Diffstat (limited to 'drivers/misc/qcom/qdsp6v2/audio_wma.c')
| -rw-r--r-- | drivers/misc/qcom/qdsp6v2/audio_wma.c | 345 |
1 files changed, 345 insertions, 0 deletions
diff --git a/drivers/misc/qcom/qdsp6v2/audio_wma.c b/drivers/misc/qcom/qdsp6v2/audio_wma.c new file mode 100644 index 000000000000..3d57d38d0fd1 --- /dev/null +++ b/drivers/misc/qcom/qdsp6v2/audio_wma.c @@ -0,0 +1,345 @@ +/* wma audio output device + * + * Copyright (C) 2008 Google, Inc. + * Copyright (C) 2008 HTC Corporation + * Copyright (c) 2009-2015, The Linux Foundation. All rights reserved. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * 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_wma.h> +#include <linux/compat.h> +#include "audio_utils_aio.h" + +static struct miscdevice audio_wma_misc; +static struct ws_mgr audio_wma_ws_mgr; + +#ifdef CONFIG_DEBUG_FS +static const struct file_operations audio_wma_debug_fops = { + .read = audio_aio_debug_read, + .open = audio_aio_debug_open, +}; +#endif + +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_wma_cfg wma_cfg; + struct msm_audio_wma_config_v2 *wma_config; + pr_debug("%s[%p]: 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; + } + } + wma_config = (struct msm_audio_wma_config_v2 *)audio->codec_cfg; + wma_cfg.format_tag = wma_config->format_tag; + wma_cfg.ch_cfg = wma_config->numchannels; + wma_cfg.sample_rate = wma_config->samplingrate; + wma_cfg.avg_bytes_per_sec = wma_config->avgbytespersecond; + wma_cfg.block_align = wma_config->block_align; + wma_cfg.valid_bits_per_sample = + wma_config->validbitspersample; + wma_cfg.ch_mask = wma_config->channelmask; + wma_cfg.encode_opt = wma_config->encodeopt; + /* Configure Media format block */ + rc = q6asm_media_format_block_wma(audio->ac, &wma_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_WMA_CONFIG_V2: { + if (copy_to_user((void *)arg, audio->codec_cfg, + sizeof(struct msm_audio_wma_config_v2))) { + pr_err("%s:copy_to_user for AUDIO_SET_WMA_CONFIG_V2 failed\n", + __func__); + rc = -EFAULT; + break; + } + break; + } + case AUDIO_SET_WMA_CONFIG_V2: { + if (copy_from_user(audio->codec_cfg, (void *)arg, + sizeof(struct msm_audio_wma_config_v2))) { + pr_err("%s:copy_from_user for AUDIO_SET_WMA_CONFIG_V2 failed\n", + __func__); + rc = -EFAULT; + break; + } + break; + } + default: { + pr_debug("%s[%p]: 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_wma_config_v2_32 { + u16 format_tag; + u16 numchannels; + u32 samplingrate; + u32 avgbytespersecond; + u16 block_align; + u16 validbitspersample; + u32 channelmask; + u16 encodeopt; +}; + +enum { + AUDIO_GET_WMA_CONFIG_V2_32 = _IOR(AUDIO_IOCTL_MAGIC, + (AUDIO_MAX_COMMON_IOCTL_NUM+2), struct msm_audio_wma_config_v2_32), + AUDIO_SET_WMA_CONFIG_V2_32 = _IOW(AUDIO_IOCTL_MAGIC, + (AUDIO_MAX_COMMON_IOCTL_NUM+3), struct msm_audio_wma_config_v2_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_WMA_CONFIG_V2_32: { + struct msm_audio_wma_config_v2 *wma_config; + struct msm_audio_wma_config_v2_32 wma_config_32; + + wma_config = (struct msm_audio_wma_config_v2 *)audio->codec_cfg; + wma_config_32.format_tag = wma_config->format_tag; + wma_config_32.numchannels = wma_config->numchannels; + wma_config_32.samplingrate = wma_config->samplingrate; + wma_config_32.avgbytespersecond = wma_config->avgbytespersecond; + wma_config_32.block_align = wma_config->block_align; + wma_config_32.validbitspersample = + wma_config->validbitspersample; + wma_config_32.channelmask = wma_config->channelmask; + wma_config_32.encodeopt = wma_config->encodeopt; + if (copy_to_user((void *)arg, &wma_config_32, + sizeof(wma_config_32))) { + pr_err("%s: copy_to_user for GET_WMA_CONFIG_V2_32 failed\n", + __func__); + rc = -EFAULT; + break; + } + break; + } + case AUDIO_SET_WMA_CONFIG_V2_32: { + struct msm_audio_wma_config_v2 *wma_config; + struct msm_audio_wma_config_v2_32 wma_config_32; + + if (copy_from_user(&wma_config_32, (void *)arg, + sizeof(wma_config_32))) { + pr_err("%s: copy_from_user for SET_WMA_CONFIG_V2_32 failed\n" + , __func__); + rc = -EFAULT; + break; + } + wma_config = (struct msm_audio_wma_config_v2 *)audio->codec_cfg; + wma_config->format_tag = wma_config_32.format_tag; + wma_config->numchannels = wma_config_32.numchannels; + wma_config->samplingrate = wma_config_32.samplingrate; + wma_config->avgbytespersecond = wma_config_32.avgbytespersecond; + wma_config->block_align = wma_config_32.block_align; + wma_config->validbitspersample = + wma_config_32.validbitspersample; + wma_config->channelmask = wma_config_32.channelmask; + wma_config->encodeopt = wma_config_32.encodeopt; + break; + } + default: { + pr_debug("%s[%p]: 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; + +#ifdef CONFIG_DEBUG_FS + /* 4 bytes represents decoder number, 1 byte for terminate string */ + char name[sizeof "msm_wma_" + 5]; +#endif + audio = kzalloc(sizeof(struct q6audio_aio), GFP_KERNEL); + + if (audio == NULL) { + pr_err("Could not allocate memory for wma decode driver\n"); + return -ENOMEM; + } + audio->codec_cfg = kzalloc(sizeof(struct msm_audio_wma_config_v2), + GFP_KERNEL); + if (audio->codec_cfg == NULL) { + pr_err("%s:Could not allocate memory for wma" + "config\n", __func__); + kfree(audio); + return -ENOMEM; + } + + audio->pcm_cfg.buffer_size = PCM_BUFSZ_MIN; + audio->miscdevice = &audio_wma_misc; + audio->wakelock_voted = false; + audio->audio_ws_mgr = &audio_wma_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_WMA_V9); + if (rc < 0) { + pr_err("NT mode Open failed rc=%d\n", rc); + rc = -ENODEV; + goto fail; + } + audio->feedback = NON_TUNNEL_MODE; + /* open WMA 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_WMA_V9); + 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; + } + +#ifdef CONFIG_DEBUG_FS + snprintf(name, sizeof name, "msm_wma_%04x", audio->ac->session); + audio->dentry = debugfs_create_file(name, S_IFREG | S_IRUGO, + NULL, (void *)audio, + &audio_wma_debug_fops); + + if (IS_ERR(audio->dentry)) + pr_debug("debugfs_create_file failed\n"); +#endif + pr_info("%s:wmadec 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_wma_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_wma_misc = { + .minor = MISC_DYNAMIC_MINOR, + .name = "msm_wma", + .fops = &audio_wma_fops, +}; + +static int __init audio_wma_init(void) +{ + int ret = misc_register(&audio_wma_misc); + + if (ret == 0) + device_init_wakeup(audio_wma_misc.this_device, true); + audio_wma_ws_mgr.ref_cnt = 0; + mutex_init(&audio_wma_ws_mgr.ws_lock); + + return ret; +} + +device_initcall(audio_wma_init); |