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

 /* wmapro audio output device
  *
  * Copyright (C) 2008 Google, Inc.
  * Copyright (C) 2008 HTC Corporation
  * Copyright (c) 2009-2012, 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/types.h>
 #include <linux/msm_audio_wmapro.h>
 #include "audio_utils_aio.h"

 #ifdef CONFIG_DEBUG_FS
 static const struct file_operations audio_wmapro_debug_fops = {
 	.read = audio_aio_debug_read,
 	.open = audio_aio_debug_open,
 };
 #endif

 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: {
 		struct asm_wmapro_cfg wmapro_cfg;
 		struct msm_audio_wmapro_config *wmapro_config;
 		pr_debug("%s: AUDIO_START session_id[%d]\n", __func__,
 						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;
 			}
 		}
 		wmapro_config = (struct msm_audio_wmapro_config *)
 				audio->codec_cfg;
 		if ((wmapro_config->formattag == 0x162) ||
 		(wmapro_config->formattag == 0x163) ||
 		(wmapro_config->formattag == 0x166) ||
 		(wmapro_config->formattag == 0x167)) {
 			wmapro_cfg.format_tag = wmapro_config->formattag;
 		} else {
 			pr_err("%s:AUDIO_START failed: formattag = %d\n",
 				__func__, wmapro_config->formattag);
 			rc = -EINVAL;
 			break;
 		}
 		if ((wmapro_config->numchannels == 1) ||
 		(wmapro_config->numchannels == 2)) {
 			wmapro_cfg.ch_cfg = wmapro_config->numchannels;
 		} else {
 			pr_err("%s:AUDIO_START failed: channels = %d\n",
 				__func__, wmapro_config->numchannels);
 			rc = -EINVAL;
 			break;
 		}
 		if ((wmapro_config->samplingrate <= 48000) ||
 		(wmapro_config->samplingrate > 0)) {
 			wmapro_cfg.sample_rate =
 				wmapro_config->samplingrate;
 		} else {
 			pr_err("%s:AUDIO_START failed: sample_rate = %d\n",
 				__func__, wmapro_config->samplingrate);
 			rc = -EINVAL;
 			break;
 		}
 		wmapro_cfg.avg_bytes_per_sec =
 				wmapro_config->avgbytespersecond;
 		if ((wmapro_config->asfpacketlength <= 13376) ||
 		(wmapro_config->asfpacketlength > 0)) {
 			wmapro_cfg.block_align =
 				wmapro_config->asfpacketlength;
 		} else {
 			pr_err("%s:AUDIO_START failed: block_align = %d\n",
 				__func__, wmapro_config->asfpacketlength);
 			rc = -EINVAL;
 			break;
 		}
 		if ((wmapro_config->validbitspersample == 16) ||
 			(wmapro_config->validbitspersample == 24)) {
 			wmapro_cfg.valid_bits_per_sample =
 				wmapro_config->validbitspersample;
 		} else {
 			pr_err("%s:AUDIO_START failed: bitspersample = %d\n",
 				__func__,
 				wmapro_config->validbitspersample);
 			rc = -EINVAL;
 			break;
 		}
 		if ((wmapro_config->channelmask  == 4) ||
 		(wmapro_config->channelmask == 3)) {
 			wmapro_cfg.ch_mask =  wmapro_config->channelmask;
 		} else {
 			pr_err("%s:AUDIO_START failed: channel_mask = %d\n",
 				__func__, wmapro_config->channelmask);
 			rc = -EINVAL;
 			break;
 		}
 		wmapro_cfg.encode_opt = wmapro_config->encodeopt;
 		wmapro_cfg.adv_encode_opt =
 				wmapro_config->advancedencodeopt;
 		wmapro_cfg.adv_encode_opt2 =
 				wmapro_config->advancedencodeopt2;
 		/* Configure Media format block */
 		rc = q6asm_media_format_block_wmapro(audio->ac, &wmapro_cfg);
 		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;
 	}
 	case AUDIO_GET_WMAPRO_CONFIG: {
 		if (copy_to_user((void *)arg, audio->codec_cfg,
 			 sizeof(struct msm_audio_wmapro_config))) {
 			rc = -EFAULT;
 		}
 		break;
 	}
 	case AUDIO_SET_WMAPRO_CONFIG: {
 		if (copy_from_user(audio->codec_cfg, (void *)arg,
 			sizeof(struct msm_audio_wmapro_config))) {
 			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);
 	}
 	return rc;
 }

 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_wmapro_" + 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_wmapro_config),
 					GFP_KERNEL);
 	if (audio->codec_cfg == NULL) {
 		pr_err("%s: Could not allocate memory for wmapro"
 			"config\n", __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_WMA_V10PRO);
 		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_V10PRO);
 		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;
 	}
 	rc = audio_aio_open(audio, file);

 #ifdef CONFIG_DEBUG_FS
 	snprintf(name, sizeof name, "msm_wmapro_%04x", audio->ac->session);
 	audio->dentry = debugfs_create_file(name, S_IFREG | S_IRUGO,
 					    NULL, (void *)audio,
 					    &audio_wmapro_debug_fops);

 	if (IS_ERR(audio->dentry))
 		pr_debug("debugfs_create_file failed\n");
 #endif
 	pr_info("%s:wmapro decoder open success, session_id = %d\n", __func__,
 				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_wmapro_fops = {
 	.owner = THIS_MODULE,
 	.open = audio_open,
 	.release = audio_aio_release,
 	.unlocked_ioctl = audio_ioctl,
 	.fsync = audio_aio_fsync,
 };

 struct miscdevice audio_wmapro_misc = {
 	.minor = MISC_DYNAMIC_MINOR,
 	.name = "msm_wmapro",
 	.fops = &audio_wmapro_fops,
 };

 static int __init audio_wmapro_init(void)
 {
 	return misc_register(&audio_wmapro_misc);
 }

 device_initcall(audio_wmapro_init);
	/* wmapro audio output device
	*
	* Copyright (C) 2008 Google, Inc.
	* Copyright (C) 2008 HTC Corporation
	* Copyright (c) 2009-2012, 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/types.h>
	#include <linux/msm_audio_wmapro.h>
	#include "audio_utils_aio.h"

	#ifdef CONFIG_DEBUG_FS
	static const struct file_operations audio_wmapro_debug_fops = {
	.read = audio_aio_debug_read,
	.open = audio_aio_debug_open,
	};
	#endif

	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: {
	struct asm_wmapro_cfg wmapro_cfg;
	struct msm_audio_wmapro_config *wmapro_config;
	pr_debug("%s: AUDIO_START session_id[%d]\n", __func__,
	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;
	}
	}
	wmapro_config = (struct msm_audio_wmapro_config *)
	audio->codec_cfg;
	if ((wmapro_config->formattag == 0x162) \|\|
	(wmapro_config->formattag == 0x163) \|\|
	(wmapro_config->formattag == 0x166) \|\|
	(wmapro_config->formattag == 0x167)) {
	wmapro_cfg.format_tag = wmapro_config->formattag;
	} else {
	pr_err("%s:AUDIO_START failed: formattag = %d\n",
	__func__, wmapro_config->formattag);
	rc = -EINVAL;
	break;
	}
	if ((wmapro_config->numchannels == 1) \|\|
	(wmapro_config->numchannels == 2)) {
	wmapro_cfg.ch_cfg = wmapro_config->numchannels;
	} else {
	pr_err("%s:AUDIO_START failed: channels = %d\n",
	__func__, wmapro_config->numchannels);
	rc = -EINVAL;
	break;
	}
	if ((wmapro_config->samplingrate <= 48000) \|\|
	(wmapro_config->samplingrate > 0)) {
	wmapro_cfg.sample_rate =
	wmapro_config->samplingrate;
	} else {
	pr_err("%s:AUDIO_START failed: sample_rate = %d\n",
	__func__, wmapro_config->samplingrate);
	rc = -EINVAL;
	break;
	}
	wmapro_cfg.avg_bytes_per_sec =
	wmapro_config->avgbytespersecond;
	if ((wmapro_config->asfpacketlength <= 13376) \|\|
	(wmapro_config->asfpacketlength > 0)) {
	wmapro_cfg.block_align =
	wmapro_config->asfpacketlength;
	} else {
	pr_err("%s:AUDIO_START failed: block_align = %d\n",
	__func__, wmapro_config->asfpacketlength);
	rc = -EINVAL;
	break;
	}
	if ((wmapro_config->validbitspersample == 16) \|\|
	(wmapro_config->validbitspersample == 24)) {
	wmapro_cfg.valid_bits_per_sample =
	wmapro_config->validbitspersample;
	} else {
	pr_err("%s:AUDIO_START failed: bitspersample = %d\n",
	__func__,
	wmapro_config->validbitspersample);
	rc = -EINVAL;
	break;
	}
	if ((wmapro_config->channelmask == 4) \|\|
	(wmapro_config->channelmask == 3)) {
	wmapro_cfg.ch_mask = wmapro_config->channelmask;
	} else {
	pr_err("%s:AUDIO_START failed: channel_mask = %d\n",
	__func__, wmapro_config->channelmask);
	rc = -EINVAL;
	break;
	}
	wmapro_cfg.encode_opt = wmapro_config->encodeopt;
	wmapro_cfg.adv_encode_opt =
	wmapro_config->advancedencodeopt;
	wmapro_cfg.adv_encode_opt2 =
	wmapro_config->advancedencodeopt2;
	/* Configure Media format block */
	rc = q6asm_media_format_block_wmapro(audio->ac, &wmapro_cfg);
	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;
	}
	case AUDIO_GET_WMAPRO_CONFIG: {
	if (copy_to_user((void *)arg, audio->codec_cfg,
	sizeof(struct msm_audio_wmapro_config))) {
	rc = -EFAULT;
	}
	break;
	}
	case AUDIO_SET_WMAPRO_CONFIG: {
	if (copy_from_user(audio->codec_cfg, (void *)arg,
	sizeof(struct msm_audio_wmapro_config))) {
	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);
	}
	return rc;
	}

	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_wmapro_" + 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_wmapro_config),
	GFP_KERNEL);
	if (audio->codec_cfg == NULL) {
	pr_err("%s: Could not allocate memory for wmapro"
	"config\n", __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_WMA_V10PRO);
	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_V10PRO);
	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;
	}
	rc = audio_aio_open(audio, file);

	#ifdef CONFIG_DEBUG_FS
	snprintf(name, sizeof name, "msm_wmapro_%04x", audio->ac->session);
	audio->dentry = debugfs_create_file(name, S_IFREG \| S_IRUGO,
	NULL, (void *)audio,
	&audio_wmapro_debug_fops);

	if (IS_ERR(audio->dentry))
	pr_debug("debugfs_create_file failed\n");
	#endif
	pr_info("%s:wmapro decoder open success, session_id = %d\n", __func__,
	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_wmapro_fops = {
	.owner = THIS_MODULE,
	.open = audio_open,
	.release = audio_aio_release,
	.unlocked_ioctl = audio_ioctl,
	.fsync = audio_aio_fsync,
	};

	struct miscdevice audio_wmapro_misc = {
	.minor = MISC_DYNAMIC_MINOR,
	.name = "msm_wmapro",
	.fops = &audio_wmapro_fops,
	};

	static int __init audio_wmapro_init(void)
	{
	return misc_register(&audio_wmapro_misc);
	}

	device_initcall(audio_wmapro_init);