diff options
Diffstat (limited to 'sound/soc/codecs/pcm3008.c')
| -rw-r--r-- | sound/soc/codecs/pcm3008.c | 212 |
1 files changed, 0 insertions, 212 deletions
diff --git a/sound/soc/codecs/pcm3008.c b/sound/soc/codecs/pcm3008.c deleted file mode 100644 index f333e88ee255..000000000000 --- a/sound/soc/codecs/pcm3008.c +++ /dev/null @@ -1,212 +0,0 @@ -/* - * ALSA Soc PCM3008 codec support - * - * Author: Hugo Villeneuve - * Copyright (C) 2008 Lyrtech inc - * - * Based on AC97 Soc codec, original copyright follow: - * Copyright 2005 Wolfson Microelectronics PLC. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * Generic PCM3008 support. - */ - -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/device.h> -#include <linux/gpio.h> -#include <sound/core.h> -#include <sound/pcm.h> -#include <sound/initval.h> -#include <sound/soc.h> - -#include "pcm3008.h" - -#define PCM3008_VERSION "0.2" - -#define PCM3008_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \ - SNDRV_PCM_RATE_48000) - -struct snd_soc_dai pcm3008_dai = { - .name = "PCM3008 HiFi", - .playback = { - .stream_name = "PCM3008 Playback", - .channels_min = 1, - .channels_max = 2, - .rates = PCM3008_RATES, - .formats = SNDRV_PCM_FMTBIT_S16_LE, - }, - .capture = { - .stream_name = "PCM3008 Capture", - .channels_min = 1, - .channels_max = 2, - .rates = PCM3008_RATES, - .formats = SNDRV_PCM_FMTBIT_S16_LE, - }, -}; -EXPORT_SYMBOL_GPL(pcm3008_dai); - -static void pcm3008_gpio_free(struct pcm3008_setup_data *setup) -{ - gpio_free(setup->dem0_pin); - gpio_free(setup->dem1_pin); - gpio_free(setup->pdad_pin); - gpio_free(setup->pdda_pin); -} - -static int pcm3008_soc_probe(struct platform_device *pdev) -{ - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_codec *codec; - struct pcm3008_setup_data *setup = socdev->codec_data; - int ret = 0; - - printk(KERN_INFO "PCM3008 SoC Audio Codec %s\n", PCM3008_VERSION); - - socdev->codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); - if (!socdev->codec) - return -ENOMEM; - - codec = socdev->codec; - mutex_init(&codec->mutex); - - codec->name = "PCM3008"; - codec->owner = THIS_MODULE; - codec->dai = &pcm3008_dai; - codec->num_dai = 1; - codec->write = NULL; - codec->read = NULL; - INIT_LIST_HEAD(&codec->dapm_widgets); - INIT_LIST_HEAD(&codec->dapm_paths); - - /* Register PCMs. */ - ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); - if (ret < 0) { - printk(KERN_ERR "pcm3008: failed to create pcms\n"); - goto pcm_err; - } - - /* Register Card. */ - ret = snd_soc_init_card(socdev); - if (ret < 0) { - printk(KERN_ERR "pcm3008: failed to register card\n"); - goto card_err; - } - - /* DEM1 DEM0 DE-EMPHASIS_MODE - * Low Low De-emphasis 44.1 kHz ON - * Low High De-emphasis OFF - * High Low De-emphasis 48 kHz ON - * High High De-emphasis 32 kHz ON - */ - - /* Configure DEM0 GPIO (turning OFF DAC De-emphasis). */ - ret = gpio_request(setup->dem0_pin, "codec_dem0"); - if (ret == 0) - ret = gpio_direction_output(setup->dem0_pin, 1); - if (ret != 0) - goto gpio_err; - - /* Configure DEM1 GPIO (turning OFF DAC De-emphasis). */ - ret = gpio_request(setup->dem1_pin, "codec_dem1"); - if (ret == 0) - ret = gpio_direction_output(setup->dem1_pin, 0); - if (ret != 0) - goto gpio_err; - - /* Configure PDAD GPIO. */ - ret = gpio_request(setup->pdad_pin, "codec_pdad"); - if (ret == 0) - ret = gpio_direction_output(setup->pdad_pin, 1); - if (ret != 0) - goto gpio_err; - - /* Configure PDDA GPIO. */ - ret = gpio_request(setup->pdda_pin, "codec_pdda"); - if (ret == 0) - ret = gpio_direction_output(setup->pdda_pin, 1); - if (ret != 0) - goto gpio_err; - - return ret; - -gpio_err: - pcm3008_gpio_free(setup); -card_err: - snd_soc_free_pcms(socdev); -pcm_err: - kfree(socdev->codec); - - return ret; -} - -static int pcm3008_soc_remove(struct platform_device *pdev) -{ - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_codec *codec = socdev->codec; - struct pcm3008_setup_data *setup = socdev->codec_data; - - if (!codec) - return 0; - - pcm3008_gpio_free(setup); - snd_soc_free_pcms(socdev); - kfree(socdev->codec); - - return 0; -} - -#ifdef CONFIG_PM -static int pcm3008_soc_suspend(struct platform_device *pdev, pm_message_t msg) -{ - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct pcm3008_setup_data *setup = socdev->codec_data; - - gpio_set_value(setup->pdad_pin, 0); - gpio_set_value(setup->pdda_pin, 0); - - return 0; -} - -static int pcm3008_soc_resume(struct platform_device *pdev) -{ - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct pcm3008_setup_data *setup = socdev->codec_data; - - gpio_set_value(setup->pdad_pin, 1); - gpio_set_value(setup->pdda_pin, 1); - - return 0; -} -#else -#define pcm3008_soc_suspend NULL -#define pcm3008_soc_resume NULL -#endif - -struct snd_soc_codec_device soc_codec_dev_pcm3008 = { - .probe = pcm3008_soc_probe, - .remove = pcm3008_soc_remove, - .suspend = pcm3008_soc_suspend, - .resume = pcm3008_soc_resume, -}; -EXPORT_SYMBOL_GPL(soc_codec_dev_pcm3008); - -static int __devinit pcm3008_init(void) -{ - return snd_soc_register_dai(&pcm3008_dai); -} -module_init(pcm3008_init); - -static void __exit pcm3008_exit(void) -{ - snd_soc_unregister_dai(&pcm3008_dai); -} -module_exit(pcm3008_exit); - -MODULE_DESCRIPTION("Soc PCM3008 driver"); -MODULE_AUTHOR("Hugo Villeneuve"); -MODULE_LICENSE("GPL"); |