mirror of
https://github.com/genesi/linux-legacy.git
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52bf586bac
Move regulator control into codec drivers. Move codec platform data to machine layer. Remove unused fields from mxc_audio_platform_data. soc multiple audio cards support: dai_list is a list for all registered codec/cpu dais. One codec/cpu dais can't be registered twice, so move the cpu dai registering into imx-ssi.c/imx-esai.c Fix ak4647_read_reg error. Put ssi/esai mode in the cpu_dai private_data. sgtl5000: Fix the power for MX35 1. MX35 vddio and vddd are directly connected to external 3V3. It has no regulator control. 2. sgtl5000 needs some time to be ready after vdda is switched on so msleep(1) is added before regiter read/write. 3. On MX35 platform, vdda is from VCAM. Signed-off-by: Alan Tull <r80115@freescale.com> Signed-off-by: Wallace Wang <r59996@freescale.com>
162 lines
3.4 KiB
C
162 lines
3.4 KiB
C
/*
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* Copyright 2008-2009 Freescale Semiconductor, Inc. All Rights Reserved.
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*/
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/*
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* The code contained herein is licensed under the GNU General Public
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* License. You may obtain a copy of the GNU General Public License
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* Version 2 or later at the following locations:
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*
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* http://www.opensource.org/licenses/gpl-license.html
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* http://www.gnu.org/copyleft/gpl.html
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*/
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/*!
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* @file bluetooth.c
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* @brief Driver for bluetooth PCM interface
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*
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* @ingroup Sound
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/pm.h>
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#include <linux/platform_device.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <sound/soc-dapm.h>
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#include <sound/initval.h>
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#include <sound/tlv.h>
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#define BLUETOOTH_RATES SNDRV_PCM_RATE_8000
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#define BLUETOOTH_FORMATS SNDRV_PCM_FMTBIT_S16_LE
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struct snd_soc_dai bt_dai = {
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.name = "bluetooth",
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.playback = {
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.stream_name = "Playback",
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.channels_min = 1,
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.channels_max = 2,
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.rates = BLUETOOTH_RATES,
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.formats = BLUETOOTH_FORMATS,
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},
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.capture = {
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.stream_name = "Capture",
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.channels_min = 1,
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.channels_max = 2,
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.rates = BLUETOOTH_RATES,
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.formats = BLUETOOTH_FORMATS,
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},
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};
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EXPORT_SYMBOL_GPL(bt_dai);
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static int bt_init(struct snd_soc_device *socdev)
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{
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struct snd_soc_codec *codec = socdev->card->codec;
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int ret = 0;
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codec->name = "bluetooth";
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codec->owner = THIS_MODULE;
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codec->dai = &bt_dai;
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codec->num_dai = 1;
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snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
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if (ret < 0) {
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pr_err("failed to create bluetooth pcms\n");
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return ret;
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}
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ret = snd_soc_init_card(socdev);
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strcpy(codec->card->id, "bluetooth");
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if (ret < 0) {
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pr_err("bluetooth: failed to register card\n");
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snd_soc_free_pcms(socdev);
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snd_soc_dapm_free(socdev);
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return ret;
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}
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return 0;
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}
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static struct snd_soc_device *bt_socdev;
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static int bt_probe(struct platform_device *pdev)
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{
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struct snd_soc_device *socdev = platform_get_drvdata(pdev);
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struct snd_soc_codec *codec = socdev->card->codec;
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int ret = 0;
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codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
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if (codec == NULL)
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return -ENOMEM;
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socdev->card->codec = codec;
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mutex_init(&codec->mutex);
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INIT_LIST_HEAD(&codec->dapm_widgets);
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INIT_LIST_HEAD(&codec->dapm_paths);
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bt_socdev = socdev;
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ret = bt_init(socdev);
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if (ret < 0) {
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pr_err("Bluetooth codec initialisation failed\n");
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kfree(codec);
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}
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return ret;
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}
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/* power down chip */
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static int bt_remove(struct platform_device *pdev)
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{
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struct snd_soc_device *socdev = platform_get_drvdata(pdev);
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struct snd_soc_codec *codec = socdev->card->codec;
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snd_soc_free_pcms(socdev);
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snd_soc_dapm_free(socdev);
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kfree(codec);
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return 0;
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}
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static int bt_suspend(struct platform_device *pdev, pm_message_t state)
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{
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return 0;
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}
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static int bt_resume(struct platform_device *pdev)
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{
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return 0;
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}
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struct snd_soc_codec_device soc_codec_dev_bt = {
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.probe = bt_probe,
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.remove = bt_remove,
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.suspend = bt_suspend,
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.resume = bt_resume,
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};
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EXPORT_SYMBOL_GPL(soc_codec_dev_bt);
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static int __init bluetooth_modinit(void)
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{
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return snd_soc_register_dai(&bt_dai);
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}
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module_init(bluetooth_modinit);
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static void __exit bluetooth_exit(void)
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{
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snd_soc_unregister_dai(&bt_dai);
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}
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module_exit(bluetooth_exit);
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MODULE_DESCRIPTION("ASoC bluetooth codec driver");
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MODULE_AUTHOR("Freescale Semiconductor, Inc.");
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MODULE_LICENSE("GPL");
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