Version:  2.0.40 2.2.26 2.4.37 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18

Linux/sound/soc/pxa/e800_wm9712.c

  1 /*
  2  * e800-wm9712.c  --  SoC audio for e800
  3  *
  4  * Copyright 2007 (c) Ian Molton <spyro@f2s.com>
  5  *
  6  *  This program is free software; you can redistribute  it and/or modify it
  7  *  under  the terms of  the GNU General  Public License as published by the
  8  *  Free Software Foundation; version 2 ONLY.
  9  *
 10  */
 11 
 12 #include <linux/module.h>
 13 #include <linux/moduleparam.h>
 14 #include <linux/gpio.h>
 15 
 16 #include <sound/core.h>
 17 #include <sound/pcm.h>
 18 #include <sound/soc.h>
 19 
 20 #include <asm/mach-types.h>
 21 #include <mach/audio.h>
 22 #include <mach/eseries-gpio.h>
 23 
 24 #include "../codecs/wm9712.h"
 25 #include "pxa2xx-ac97.h"
 26 
 27 static int e800_spk_amp_event(struct snd_soc_dapm_widget *w,
 28                                 struct snd_kcontrol *kcontrol, int event)
 29 {
 30         if (event & SND_SOC_DAPM_PRE_PMU)
 31                 gpio_set_value(GPIO_E800_SPK_AMP_ON, 1);
 32         else if (event & SND_SOC_DAPM_POST_PMD)
 33                 gpio_set_value(GPIO_E800_SPK_AMP_ON, 0);
 34 
 35         return 0;
 36 }
 37 
 38 static int e800_hp_amp_event(struct snd_soc_dapm_widget *w,
 39                                 struct snd_kcontrol *kcontrol, int event)
 40 {
 41         if (event & SND_SOC_DAPM_PRE_PMU)
 42                 gpio_set_value(GPIO_E800_HP_AMP_OFF, 0);
 43         else if (event & SND_SOC_DAPM_POST_PMD)
 44                 gpio_set_value(GPIO_E800_HP_AMP_OFF, 1);
 45 
 46         return 0;
 47 }
 48 
 49 static const struct snd_soc_dapm_widget e800_dapm_widgets[] = {
 50         SND_SOC_DAPM_HP("Headphone Jack", NULL),
 51         SND_SOC_DAPM_MIC("Mic (Internal1)", NULL),
 52         SND_SOC_DAPM_MIC("Mic (Internal2)", NULL),
 53         SND_SOC_DAPM_SPK("Speaker", NULL),
 54         SND_SOC_DAPM_PGA_E("Headphone Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
 55                         e800_hp_amp_event, SND_SOC_DAPM_PRE_PMU |
 56                         SND_SOC_DAPM_POST_PMD),
 57         SND_SOC_DAPM_PGA_E("Speaker Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
 58                         e800_spk_amp_event, SND_SOC_DAPM_PRE_PMU |
 59                         SND_SOC_DAPM_POST_PMD),
 60 };
 61 
 62 static const struct snd_soc_dapm_route audio_map[] = {
 63         {"Headphone Jack", NULL, "HPOUTL"},
 64         {"Headphone Jack", NULL, "HPOUTR"},
 65         {"Headphone Jack", NULL, "Headphone Amp"},
 66 
 67         {"Speaker Amp", NULL, "MONOOUT"},
 68         {"Speaker", NULL, "Speaker Amp"},
 69 
 70         {"MIC1", NULL, "Mic (Internal1)"},
 71         {"MIC2", NULL, "Mic (Internal2)"},
 72 };
 73 
 74 static struct snd_soc_dai_link e800_dai[] = {
 75         {
 76                 .name = "AC97",
 77                 .stream_name = "AC97 HiFi",
 78                 .cpu_dai_name = "pxa2xx-ac97",
 79                 .codec_dai_name = "wm9712-hifi",
 80                 .platform_name = "pxa-pcm-audio",
 81                 .codec_name = "wm9712-codec",
 82         },
 83         {
 84                 .name = "AC97 Aux",
 85                 .stream_name = "AC97 Aux",
 86                 .cpu_dai_name = "pxa2xx-ac97-aux",
 87                 .codec_dai_name ="wm9712-aux",
 88                 .platform_name = "pxa-pcm-audio",
 89                 .codec_name = "wm9712-codec",
 90         },
 91 };
 92 
 93 static struct snd_soc_card e800 = {
 94         .name = "Toshiba e800",
 95         .owner = THIS_MODULE,
 96         .dai_link = e800_dai,
 97         .num_links = ARRAY_SIZE(e800_dai),
 98 
 99         .dapm_widgets = e800_dapm_widgets,
100         .num_dapm_widgets = ARRAY_SIZE(e800_dapm_widgets),
101         .dapm_routes = audio_map,
102         .num_dapm_routes = ARRAY_SIZE(audio_map),
103 };
104 
105 static struct gpio e800_audio_gpios[] = {
106         { GPIO_E800_SPK_AMP_ON, GPIOF_OUT_INIT_HIGH, "Headphone amp" },
107         { GPIO_E800_HP_AMP_OFF, GPIOF_OUT_INIT_HIGH, "Speaker amp" },
108 };
109 
110 static int e800_probe(struct platform_device *pdev)
111 {
112         struct snd_soc_card *card = &e800;
113         int ret;
114 
115         ret = gpio_request_array(e800_audio_gpios,
116                                  ARRAY_SIZE(e800_audio_gpios));
117         if (ret)
118                 return ret;
119 
120         card->dev = &pdev->dev;
121 
122         ret = snd_soc_register_card(card);
123         if (ret) {
124                 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
125                         ret);
126                 gpio_free_array(e800_audio_gpios, ARRAY_SIZE(e800_audio_gpios));
127         }
128         return ret;
129 }
130 
131 static int e800_remove(struct platform_device *pdev)
132 {
133         struct snd_soc_card *card = platform_get_drvdata(pdev);
134 
135         gpio_free_array(e800_audio_gpios, ARRAY_SIZE(e800_audio_gpios));
136         snd_soc_unregister_card(card);
137         return 0;
138 }
139 
140 static struct platform_driver e800_driver = {
141         .driver         = {
142                 .name   = "e800-audio",
143                 .owner  = THIS_MODULE,
144                 .pm     = &snd_soc_pm_ops,
145         },
146         .probe          = e800_probe,
147         .remove         = e800_remove,
148 };
149 
150 module_platform_driver(e800_driver);
151 
152 /* Module information */
153 MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
154 MODULE_DESCRIPTION("ALSA SoC driver for e800");
155 MODULE_LICENSE("GPL v2");
156 MODULE_ALIAS("platform:e800-audio");
157 

This page was automatically generated by LXR 0.3.1 (source).  •  Linux is a registered trademark of Linus Torvalds  •  Contact us