Version:  2.0.40 2.2.26 2.4.37 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 4.10

Linux/sound/soc/pxa/e750_wm9705.c

  1 /*
  2  * e750-wm9705.c  --  SoC audio for e750
  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 <mach/audio.h>
 21 #include <mach/eseries-gpio.h>
 22 
 23 #include <asm/mach-types.h>
 24 
 25 #include "pxa2xx-ac97.h"
 26 
 27 static int e750_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_E750_SPK_AMP_OFF, 0);
 32         else if (event & SND_SOC_DAPM_POST_PMD)
 33                 gpio_set_value(GPIO_E750_SPK_AMP_OFF, 1);
 34 
 35         return 0;
 36 }
 37 
 38 static int e750_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_E750_HP_AMP_OFF, 0);
 43         else if (event & SND_SOC_DAPM_POST_PMD)
 44                 gpio_set_value(GPIO_E750_HP_AMP_OFF, 1);
 45 
 46         return 0;
 47 }
 48 
 49 static const struct snd_soc_dapm_widget e750_dapm_widgets[] = {
 50         SND_SOC_DAPM_HP("Headphone Jack", NULL),
 51         SND_SOC_DAPM_SPK("Speaker", NULL),
 52         SND_SOC_DAPM_MIC("Mic (Internal)", NULL),
 53         SND_SOC_DAPM_PGA_E("Headphone Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
 54                         e750_hp_amp_event, SND_SOC_DAPM_PRE_PMU |
 55                         SND_SOC_DAPM_POST_PMD),
 56         SND_SOC_DAPM_PGA_E("Speaker Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
 57                         e750_spk_amp_event, SND_SOC_DAPM_PRE_PMU |
 58                         SND_SOC_DAPM_POST_PMD),
 59 };
 60 
 61 static const struct snd_soc_dapm_route audio_map[] = {
 62         {"Headphone Amp", NULL, "HPOUTL"},
 63         {"Headphone Amp", NULL, "HPOUTR"},
 64         {"Headphone Jack", NULL, "Headphone Amp"},
 65 
 66         {"Speaker Amp", NULL, "MONOOUT"},
 67         {"Speaker", NULL, "Speaker Amp"},
 68 
 69         {"MIC1", NULL, "Mic (Internal)"},
 70 };
 71 
 72 static struct snd_soc_dai_link e750_dai[] = {
 73         {
 74                 .name = "AC97",
 75                 .stream_name = "AC97 HiFi",
 76                 .cpu_dai_name = "pxa2xx-ac97",
 77                 .codec_dai_name = "wm9705-hifi",
 78                 .platform_name = "pxa-pcm-audio",
 79                 .codec_name = "wm9705-codec",
 80                 /* use ops to check startup state */
 81         },
 82         {
 83                 .name = "AC97 Aux",
 84                 .stream_name = "AC97 Aux",
 85                 .cpu_dai_name = "pxa2xx-ac97-aux",
 86                 .codec_dai_name ="wm9705-aux",
 87                 .platform_name = "pxa-pcm-audio",
 88                 .codec_name = "wm9705-codec",
 89         },
 90 };
 91 
 92 static struct snd_soc_card e750 = {
 93         .name = "Toshiba e750",
 94         .owner = THIS_MODULE,
 95         .dai_link = e750_dai,
 96         .num_links = ARRAY_SIZE(e750_dai),
 97 
 98         .dapm_widgets = e750_dapm_widgets,
 99         .num_dapm_widgets = ARRAY_SIZE(e750_dapm_widgets),
100         .dapm_routes = audio_map,
101         .num_dapm_routes = ARRAY_SIZE(audio_map),
102         .fully_routed = true,
103 };
104 
105 static struct gpio e750_audio_gpios[] = {
106         { GPIO_E750_HP_AMP_OFF, GPIOF_OUT_INIT_HIGH, "Headphone amp" },
107         { GPIO_E750_SPK_AMP_OFF, GPIOF_OUT_INIT_HIGH, "Speaker amp" },
108 };
109 
110 static int e750_probe(struct platform_device *pdev)
111 {
112         struct snd_soc_card *card = &e750;
113         int ret;
114 
115         ret = gpio_request_array(e750_audio_gpios,
116                                  ARRAY_SIZE(e750_audio_gpios));
117         if (ret)
118                 return ret;
119 
120         card->dev = &pdev->dev;
121 
122         ret = devm_snd_soc_register_card(&pdev->dev, card);
123         if (ret) {
124                 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
125                         ret);
126                 gpio_free_array(e750_audio_gpios, ARRAY_SIZE(e750_audio_gpios));
127         }
128         return ret;
129 }
130 
131 static int e750_remove(struct platform_device *pdev)
132 {
133         gpio_free_array(e750_audio_gpios, ARRAY_SIZE(e750_audio_gpios));
134         return 0;
135 }
136 
137 static struct platform_driver e750_driver = {
138         .driver         = {
139                 .name   = "e750-audio",
140                 .pm     = &snd_soc_pm_ops,
141         },
142         .probe          = e750_probe,
143         .remove         = e750_remove,
144 };
145 
146 module_platform_driver(e750_driver);
147 
148 /* Module information */
149 MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
150 MODULE_DESCRIPTION("ALSA SoC driver for e750");
151 MODULE_LICENSE("GPL v2");
152 MODULE_ALIAS("platform:e750-audio");
153 

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