arch/arm/mach-msm/qdsp6v2/audio_amrwbplus.c - kernel/msm - Gitiles

 /* amr-wbplus audio output device
  *
  * Copyright (C) 2008 Google, Inc.
  * Copyright (C) 2008 HTC Corporation
  * Copyright (c) 2010-2012, 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/msm_audio_amrwbplus.h>
 #include "audio_utils_aio.h"

 #ifdef CONFIG_DEBUG_FS
 static const struct file_operations audio_amrwbplus_debug_fops = {
 	.read = audio_aio_debug_read,
 	.open = audio_aio_debug_open,
 };
 static void config_debug_fs(struct q6audio_aio *audio)
 {
 	if (audio != NULL) {
 		char name[sizeof("msm_amrwbplus_") + 5];
 		snprintf(name, sizeof(name), "msm_amrwbplus_%04x",
 			audio->ac->session);
 		audio->dentry = debugfs_create_file(name, S_IFREG | S_IRUGO,
 						NULL, (void *)audio,
 						&audio_amrwbplus_debug_fops);
 		if (IS_ERR(audio->dentry))
 			pr_debug("debugfs_create_file failed\n");
 	}
 }
 #else
 static void config_debug_fs(struct q6audio_aio *)
 {
 }
 #endif

 static long audio_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
 	struct asm_amrwbplus_cfg q6_amrwbplus_cfg;
 	struct msm_audio_amrwbplus_config_v2 *amrwbplus_drv_config;
 	struct q6audio_aio *audio = file->private_data;
 	int rc = 0;

 	switch (cmd) {
 	case AUDIO_START: {
 		pr_err("%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;
 			}
 		}
 		amrwbplus_drv_config =
 		(struct msm_audio_amrwbplus_config_v2 *)audio->codec_cfg;

 		q6_amrwbplus_cfg.size_bytes     =
 			amrwbplus_drv_config->size_bytes;
 		q6_amrwbplus_cfg.version        =
 			amrwbplus_drv_config->version;
 		q6_amrwbplus_cfg.num_channels   =
 			amrwbplus_drv_config->num_channels;
 		q6_amrwbplus_cfg.amr_band_mode  =
 			amrwbplus_drv_config->amr_band_mode;
 		q6_amrwbplus_cfg.amr_dtx_mode   =
 			amrwbplus_drv_config->amr_dtx_mode;
 		q6_amrwbplus_cfg.amr_frame_fmt  =
 			amrwbplus_drv_config->amr_frame_fmt;
 		q6_amrwbplus_cfg.amr_lsf_idx    =
 			amrwbplus_drv_config->amr_lsf_idx;

 		rc = q6asm_media_format_block_amrwbplus(audio->ac,
 							&q6_amrwbplus_cfg);
 		if (rc < 0) {
 			pr_err("q6asm_media_format_block_amrwb+ 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("%s:AUDIO_START sessionid[%d]enable[%d]\n", __func__,
 			audio->ac->session,
 			audio->enabled);
 		if (audio->stopped == 1)
 			audio->stopped = 0;
 			break;
 		}
 	case AUDIO_GET_AMRWBPLUS_CONFIG_V2: {
 		if ((audio) && (arg) && (audio->codec_cfg)) {
 			if (copy_to_user((void *)arg, audio->codec_cfg,
 				sizeof(struct msm_audio_amrwbplus_config_v2))) {
 				rc = -EFAULT;
 				pr_err("wb+ config get copy_to_user failed");
 				break;
 			}
 			} else {
 				pr_err("wb+ config v2 invalid parameters..");
 				rc = -EFAULT;
 				break;
 			}
 		break;
 	}
 	case AUDIO_SET_AMRWBPLUS_CONFIG_V2: {
 		if ((audio) && (arg) && (audio->codec_cfg)) {
 			if (copy_from_user(audio->codec_cfg, (void *)arg,
 			sizeof(struct msm_audio_amrwbplus_config_v2))) {
 				rc = -EFAULT;
 				pr_err("wb+ config set copy_to_user_failed");
 				break;
 			}
 			} else {
 				pr_err("wb+ config invalid parameters..");
 				rc = -EFAULT;
 				break;
 			}
 		break;
 	}
 	default:
 		pr_debug("%s[%p]: Calling utils ioctl\n", __func__, audio);
 		rc = audio->codec_ioctl(file, cmd, arg);
 	}
 	return rc;
 }

 static int audio_open(struct inode *inode, struct file *file)
 {
 	struct q6audio_aio *audio = NULL;
 	int rc = 0;

 	audio = kzalloc(sizeof(struct q6audio_aio), GFP_KERNEL);

 	if (audio == NULL) {
 		pr_err("kzalloc failed for amrwb+ decode driver\n");
 		return -ENOMEM;
 	}
 	audio->codec_cfg =
 	kzalloc(sizeof(struct msm_audio_amrwbplus_config_v2), GFP_KERNEL);
 	if (audio->codec_cfg == NULL) {
 		pr_err("%s:failed kzalloc for amrwb+ config structure",
 			__func__);
 		kfree(audio);
 		return -ENOMEM;
 	}
 	audio->pcm_cfg.buffer_size = PCM_BUFSZ_MIN;

 	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;
 	}

 	/* 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_AMR_WB_PLUS);
 		if (rc < 0) {
 			pr_err("amrwbplus NT mode Open failed rc=%d\n", rc);
 			rc = -ENODEV;
 			goto fail;
 		}
 		audio->feedback = NON_TUNNEL_MODE;
 		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_AMR_WB_PLUS);
 			if (rc < 0) {
 				pr_err("wb+ 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("audio_amrwbplus Not supported mode\n");
 		rc = -EACCES;
 		goto fail;
 	}
 	rc = audio_aio_open(audio, file);

 	config_debug_fs(audio);
 	pr_debug("%s: AMRWBPLUS dec success mode[%d]session[%d]\n", __func__,
 		audio->feedback,
 		audio->ac->session);
 	return 0;
 fail:
 	q6asm_audio_client_free(audio->ac);
 	kfree(audio->codec_cfg);
 	kfree(audio);
 	return rc;
 }

 static const struct file_operations audio_amrwbplus_fops = {
 	.owner = THIS_MODULE,
 	.open = audio_open,
 	.release = audio_aio_release,
 	.unlocked_ioctl = audio_ioctl,
 	.fsync = audio_aio_fsync,
 };

 struct miscdevice audio_amrwbplus_misc = {
 	.minor = MISC_DYNAMIC_MINOR,
 	.name = "msm_amrwbplus",
 	.fops = &audio_amrwbplus_fops,
 };

 static int __init audio_amrwbplus_init(void)
 {
 	return misc_register(&audio_amrwbplus_misc);
 }

 device_initcall(audio_amrwbplus_init);
	/* amr-wbplus audio output device
	*
	* Copyright (C) 2008 Google, Inc.
	* Copyright (C) 2008 HTC Corporation
	* Copyright (c) 2010-2012, 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/msm_audio_amrwbplus.h>
	#include "audio_utils_aio.h"

	#ifdef CONFIG_DEBUG_FS
	static const struct file_operations audio_amrwbplus_debug_fops = {
	.read = audio_aio_debug_read,
	.open = audio_aio_debug_open,
	};
	static void config_debug_fs(struct q6audio_aio *audio)
	{
	if (audio != NULL) {
	char name[sizeof("msm_amrwbplus_") + 5];
	snprintf(name, sizeof(name), "msm_amrwbplus_%04x",
	audio->ac->session);
	audio->dentry = debugfs_create_file(name, S_IFREG \| S_IRUGO,
	NULL, (void *)audio,
	&audio_amrwbplus_debug_fops);
	if (IS_ERR(audio->dentry))
	pr_debug("debugfs_create_file failed\n");
	}
	}
	#else
	static void config_debug_fs(struct q6audio_aio *)
	{
	}
	#endif

	static long audio_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
	{
	struct asm_amrwbplus_cfg q6_amrwbplus_cfg;
	struct msm_audio_amrwbplus_config_v2 *amrwbplus_drv_config;
	struct q6audio_aio *audio = file->private_data;
	int rc = 0;

	switch (cmd) {
	case AUDIO_START: {
	pr_err("%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;
	}
	}
	amrwbplus_drv_config =
	(struct msm_audio_amrwbplus_config_v2 *)audio->codec_cfg;

	q6_amrwbplus_cfg.size_bytes =
	amrwbplus_drv_config->size_bytes;
	q6_amrwbplus_cfg.version =
	amrwbplus_drv_config->version;
	q6_amrwbplus_cfg.num_channels =
	amrwbplus_drv_config->num_channels;
	q6_amrwbplus_cfg.amr_band_mode =
	amrwbplus_drv_config->amr_band_mode;
	q6_amrwbplus_cfg.amr_dtx_mode =
	amrwbplus_drv_config->amr_dtx_mode;
	q6_amrwbplus_cfg.amr_frame_fmt =
	amrwbplus_drv_config->amr_frame_fmt;
	q6_amrwbplus_cfg.amr_lsf_idx =
	amrwbplus_drv_config->amr_lsf_idx;

	rc = q6asm_media_format_block_amrwbplus(audio->ac,
	&q6_amrwbplus_cfg);
	if (rc < 0) {
	pr_err("q6asm_media_format_block_amrwb+ 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("%s:AUDIO_START sessionid[%d]enable[%d]\n", __func__,
	audio->ac->session,
	audio->enabled);
	if (audio->stopped == 1)
	audio->stopped = 0;
	break;
	}
	case AUDIO_GET_AMRWBPLUS_CONFIG_V2: {
	if ((audio) && (arg) && (audio->codec_cfg)) {
	if (copy_to_user((void *)arg, audio->codec_cfg,
	sizeof(struct msm_audio_amrwbplus_config_v2))) {
	rc = -EFAULT;
	pr_err("wb+ config get copy_to_user failed");
	break;
	}
	} else {
	pr_err("wb+ config v2 invalid parameters..");
	rc = -EFAULT;
	break;
	}
	break;
	}
	case AUDIO_SET_AMRWBPLUS_CONFIG_V2: {
	if ((audio) && (arg) && (audio->codec_cfg)) {
	if (copy_from_user(audio->codec_cfg, (void *)arg,
	sizeof(struct msm_audio_amrwbplus_config_v2))) {
	rc = -EFAULT;
	pr_err("wb+ config set copy_to_user_failed");
	break;
	}
	} else {
	pr_err("wb+ config invalid parameters..");
	rc = -EFAULT;
	break;
	}
	break;
	}
	default:
	pr_debug("%s[%p]: Calling utils ioctl\n", __func__, audio);
	rc = audio->codec_ioctl(file, cmd, arg);
	}
	return rc;
	}

	static int audio_open(struct inode inode, struct file file)
	{
	struct q6audio_aio *audio = NULL;
	int rc = 0;

	audio = kzalloc(sizeof(struct q6audio_aio), GFP_KERNEL);

	if (audio == NULL) {
	pr_err("kzalloc failed for amrwb+ decode driver\n");
	return -ENOMEM;
	}
	audio->codec_cfg =
	kzalloc(sizeof(struct msm_audio_amrwbplus_config_v2), GFP_KERNEL);
	if (audio->codec_cfg == NULL) {
	pr_err("%s:failed kzalloc for amrwb+ config structure",
	__func__);
	kfree(audio);
	return -ENOMEM;
	}
	audio->pcm_cfg.buffer_size = PCM_BUFSZ_MIN;

	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;
	}

	/* 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_AMR_WB_PLUS);
	if (rc < 0) {
	pr_err("amrwbplus NT mode Open failed rc=%d\n", rc);
	rc = -ENODEV;
	goto fail;
	}
	audio->feedback = NON_TUNNEL_MODE;
	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_AMR_WB_PLUS);
	if (rc < 0) {
	pr_err("wb+ 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("audio_amrwbplus Not supported mode\n");
	rc = -EACCES;
	goto fail;
	}
	rc = audio_aio_open(audio, file);

	config_debug_fs(audio);
	pr_debug("%s: AMRWBPLUS dec success mode[%d]session[%d]\n", __func__,
	audio->feedback,
	audio->ac->session);
	return 0;
	fail:
	q6asm_audio_client_free(audio->ac);
	kfree(audio->codec_cfg);
	kfree(audio);
	return rc;
	}

	static const struct file_operations audio_amrwbplus_fops = {
	.owner = THIS_MODULE,
	.open = audio_open,
	.release = audio_aio_release,
	.unlocked_ioctl = audio_ioctl,
	.fsync = audio_aio_fsync,
	};

	struct miscdevice audio_amrwbplus_misc = {
	.minor = MISC_DYNAMIC_MINOR,
	.name = "msm_amrwbplus",
	.fops = &audio_amrwbplus_fops,
	};

	static int __init audio_amrwbplus_init(void)
	{
	return misc_register(&audio_amrwbplus_misc);
	}

	device_initcall(audio_amrwbplus_init);