forked from Minki/linux
87bea31c7b
The core will sync DAPM as part of the card initialization, there is no need for machine drivers to do so during their setup. OMAP drivers are omitted as I know Peter already has patches for them. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
211 lines
5.0 KiB
C
211 lines
5.0 KiB
C
/*
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* e740-wm9705.c -- SoC audio for e740
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*
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* Copyright 2007 (c) Ian Molton <spyro@f2s.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; version 2 ONLY.
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*
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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/gpio.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/soc.h>
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#include <mach/audio.h>
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#include <mach/eseries-gpio.h>
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#include <asm/mach-types.h>
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#include "../codecs/wm9705.h"
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#include "pxa2xx-ac97.h"
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#define E740_AUDIO_OUT 1
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#define E740_AUDIO_IN 2
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static int e740_audio_power;
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static void e740_sync_audio_power(int status)
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{
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gpio_set_value(GPIO_E740_WM9705_nAVDD2, !status);
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gpio_set_value(GPIO_E740_AMP_ON, (status & E740_AUDIO_OUT) ? 1 : 0);
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gpio_set_value(GPIO_E740_MIC_ON, (status & E740_AUDIO_IN) ? 1 : 0);
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}
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static int e740_mic_amp_event(struct snd_soc_dapm_widget *w,
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struct snd_kcontrol *kcontrol, int event)
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{
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if (event & SND_SOC_DAPM_PRE_PMU)
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e740_audio_power |= E740_AUDIO_IN;
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else if (event & SND_SOC_DAPM_POST_PMD)
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e740_audio_power &= ~E740_AUDIO_IN;
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e740_sync_audio_power(e740_audio_power);
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return 0;
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}
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static int e740_output_amp_event(struct snd_soc_dapm_widget *w,
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struct snd_kcontrol *kcontrol, int event)
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{
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if (event & SND_SOC_DAPM_PRE_PMU)
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e740_audio_power |= E740_AUDIO_OUT;
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else if (event & SND_SOC_DAPM_POST_PMD)
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e740_audio_power &= ~E740_AUDIO_OUT;
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e740_sync_audio_power(e740_audio_power);
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return 0;
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}
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static const struct snd_soc_dapm_widget e740_dapm_widgets[] = {
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SND_SOC_DAPM_HP("Headphone Jack", NULL),
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SND_SOC_DAPM_SPK("Speaker", NULL),
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SND_SOC_DAPM_MIC("Mic (Internal)", NULL),
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SND_SOC_DAPM_PGA_E("Output Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
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e740_output_amp_event, SND_SOC_DAPM_PRE_PMU |
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SND_SOC_DAPM_POST_PMD),
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SND_SOC_DAPM_PGA_E("Mic Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
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e740_mic_amp_event, SND_SOC_DAPM_PRE_PMU |
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SND_SOC_DAPM_POST_PMD),
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};
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static const struct snd_soc_dapm_route audio_map[] = {
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{"Output Amp", NULL, "LOUT"},
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{"Output Amp", NULL, "ROUT"},
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{"Output Amp", NULL, "MONOOUT"},
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{"Speaker", NULL, "Output Amp"},
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{"Headphone Jack", NULL, "Output Amp"},
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{"MIC1", NULL, "Mic Amp"},
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{"Mic Amp", NULL, "Mic (Internal)"},
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};
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static int e740_ac97_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct snd_soc_codec *codec = rtd->codec;
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struct snd_soc_dapm_context *dapm = &codec->dapm;
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snd_soc_dapm_nc_pin(dapm, "HPOUTL");
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snd_soc_dapm_nc_pin(dapm, "HPOUTR");
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snd_soc_dapm_nc_pin(dapm, "PHONE");
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snd_soc_dapm_nc_pin(dapm, "LINEINL");
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snd_soc_dapm_nc_pin(dapm, "LINEINR");
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snd_soc_dapm_nc_pin(dapm, "CDINL");
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snd_soc_dapm_nc_pin(dapm, "CDINR");
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snd_soc_dapm_nc_pin(dapm, "PCBEEP");
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snd_soc_dapm_nc_pin(dapm, "MIC2");
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snd_soc_dapm_new_controls(dapm, e740_dapm_widgets,
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ARRAY_SIZE(e740_dapm_widgets));
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snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
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return 0;
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}
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static struct snd_soc_dai_link e740_dai[] = {
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{
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.name = "AC97",
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.stream_name = "AC97 HiFi",
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.cpu_dai_name = "pxa2xx-ac97",
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.codec_dai_name = "wm9705-hifi",
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.platform_name = "pxa-pcm-audio",
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.codec_name = "wm9705-codec",
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.init = e740_ac97_init,
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},
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{
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.name = "AC97 Aux",
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.stream_name = "AC97 Aux",
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.cpu_dai_name = "pxa2xx-ac97-aux",
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.codec_dai_name = "wm9705-aux",
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.platform_name = "pxa-pcm-audio",
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.codec_name = "wm9705-codec",
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},
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};
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static struct snd_soc_card e740 = {
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.name = "Toshiba e740",
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.dai_link = e740_dai,
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.num_links = ARRAY_SIZE(e740_dai),
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};
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static struct platform_device *e740_snd_device;
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static int __init e740_init(void)
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{
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int ret;
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if (!machine_is_e740())
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return -ENODEV;
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ret = gpio_request(GPIO_E740_MIC_ON, "Mic amp");
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if (ret)
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return ret;
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ret = gpio_request(GPIO_E740_AMP_ON, "Output amp");
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if (ret)
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goto free_mic_amp_gpio;
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ret = gpio_request(GPIO_E740_WM9705_nAVDD2, "Audio power");
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if (ret)
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goto free_op_amp_gpio;
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/* Disable audio */
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ret = gpio_direction_output(GPIO_E740_MIC_ON, 0);
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if (ret)
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goto free_apwr_gpio;
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ret = gpio_direction_output(GPIO_E740_AMP_ON, 0);
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if (ret)
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goto free_apwr_gpio;
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ret = gpio_direction_output(GPIO_E740_WM9705_nAVDD2, 1);
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if (ret)
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goto free_apwr_gpio;
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e740_snd_device = platform_device_alloc("soc-audio", -1);
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if (!e740_snd_device) {
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ret = -ENOMEM;
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goto free_apwr_gpio;
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}
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platform_set_drvdata(e740_snd_device, &e740);
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ret = platform_device_add(e740_snd_device);
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if (!ret)
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return 0;
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/* Fail gracefully */
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platform_device_put(e740_snd_device);
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free_apwr_gpio:
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gpio_free(GPIO_E740_WM9705_nAVDD2);
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free_op_amp_gpio:
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gpio_free(GPIO_E740_AMP_ON);
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free_mic_amp_gpio:
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gpio_free(GPIO_E740_MIC_ON);
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return ret;
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}
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static void __exit e740_exit(void)
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{
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platform_device_unregister(e740_snd_device);
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gpio_free(GPIO_E740_WM9705_nAVDD2);
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gpio_free(GPIO_E740_AMP_ON);
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gpio_free(GPIO_E740_MIC_ON);
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}
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module_init(e740_init);
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module_exit(e740_exit);
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/* Module information */
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MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
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MODULE_DESCRIPTION("ALSA SoC driver for e740");
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MODULE_LICENSE("GPL v2");
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