e750_wm9705.c 3.8 KB

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  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. #include <linux/module.h>
  12. #include <linux/moduleparam.h>
  13. #include <linux/gpio.h>
  14. #include <sound/core.h>
  15. #include <sound/pcm.h>
  16. #include <sound/soc.h>
  17. #include <mach/audio.h>
  18. #include <mach/eseries-gpio.h>
  19. #include <asm/mach-types.h>
  20. #include "../codecs/wm9705.h"
  21. #include "pxa2xx-ac97.h"
  22. static int e750_spk_amp_event(struct snd_soc_dapm_widget *w,
  23. struct snd_kcontrol *kcontrol, int event)
  24. {
  25. if (event & SND_SOC_DAPM_PRE_PMU)
  26. gpio_set_value(GPIO_E750_SPK_AMP_OFF, 0);
  27. else if (event & SND_SOC_DAPM_POST_PMD)
  28. gpio_set_value(GPIO_E750_SPK_AMP_OFF, 1);
  29. return 0;
  30. }
  31. static int e750_hp_amp_event(struct snd_soc_dapm_widget *w,
  32. struct snd_kcontrol *kcontrol, int event)
  33. {
  34. if (event & SND_SOC_DAPM_PRE_PMU)
  35. gpio_set_value(GPIO_E750_HP_AMP_OFF, 0);
  36. else if (event & SND_SOC_DAPM_POST_PMD)
  37. gpio_set_value(GPIO_E750_HP_AMP_OFF, 1);
  38. return 0;
  39. }
  40. static const struct snd_soc_dapm_widget e750_dapm_widgets[] = {
  41. SND_SOC_DAPM_HP("Headphone Jack", NULL),
  42. SND_SOC_DAPM_SPK("Speaker", NULL),
  43. SND_SOC_DAPM_MIC("Mic (Internal)", NULL),
  44. SND_SOC_DAPM_PGA_E("Headphone Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
  45. e750_hp_amp_event, SND_SOC_DAPM_PRE_PMU |
  46. SND_SOC_DAPM_POST_PMD),
  47. SND_SOC_DAPM_PGA_E("Speaker Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
  48. e750_spk_amp_event, SND_SOC_DAPM_PRE_PMU |
  49. SND_SOC_DAPM_POST_PMD),
  50. };
  51. static const struct snd_soc_dapm_route audio_map[] = {
  52. {"Headphone Amp", NULL, "HPOUTL"},
  53. {"Headphone Amp", NULL, "HPOUTR"},
  54. {"Headphone Jack", NULL, "Headphone Amp"},
  55. {"Speaker Amp", NULL, "MONOOUT"},
  56. {"Speaker", NULL, "Speaker Amp"},
  57. {"MIC1", NULL, "Mic (Internal)"},
  58. };
  59. static struct snd_soc_dai_link e750_dai[] = {
  60. {
  61. .name = "AC97",
  62. .stream_name = "AC97 HiFi",
  63. .cpu_dai_name = "pxa2xx-ac97",
  64. .codec_dai_name = "wm9705-hifi",
  65. .platform_name = "pxa-pcm-audio",
  66. .codec_name = "wm9705-codec",
  67. /* use ops to check startup state */
  68. },
  69. {
  70. .name = "AC97 Aux",
  71. .stream_name = "AC97 Aux",
  72. .cpu_dai_name = "pxa2xx-ac97-aux",
  73. .codec_dai_name ="wm9705-aux",
  74. .platform_name = "pxa-pcm-audio",
  75. .codec_name = "wm9705-codec",
  76. },
  77. };
  78. static struct snd_soc_card e750 = {
  79. .name = "Toshiba e750",
  80. .owner = THIS_MODULE,
  81. .dai_link = e750_dai,
  82. .num_links = ARRAY_SIZE(e750_dai),
  83. .dapm_widgets = e750_dapm_widgets,
  84. .num_dapm_widgets = ARRAY_SIZE(e750_dapm_widgets),
  85. .dapm_routes = audio_map,
  86. .num_dapm_routes = ARRAY_SIZE(audio_map),
  87. .fully_routed = true,
  88. };
  89. static struct gpio e750_audio_gpios[] = {
  90. { GPIO_E750_HP_AMP_OFF, GPIOF_OUT_INIT_HIGH, "Headphone amp" },
  91. { GPIO_E750_SPK_AMP_OFF, GPIOF_OUT_INIT_HIGH, "Speaker amp" },
  92. };
  93. static int e750_probe(struct platform_device *pdev)
  94. {
  95. struct snd_soc_card *card = &e750;
  96. int ret;
  97. ret = gpio_request_array(e750_audio_gpios,
  98. ARRAY_SIZE(e750_audio_gpios));
  99. if (ret)
  100. return ret;
  101. card->dev = &pdev->dev;
  102. ret = devm_snd_soc_register_card(&pdev->dev, card);
  103. if (ret) {
  104. dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
  105. ret);
  106. gpio_free_array(e750_audio_gpios, ARRAY_SIZE(e750_audio_gpios));
  107. }
  108. return ret;
  109. }
  110. static int e750_remove(struct platform_device *pdev)
  111. {
  112. gpio_free_array(e750_audio_gpios, ARRAY_SIZE(e750_audio_gpios));
  113. return 0;
  114. }
  115. static struct platform_driver e750_driver = {
  116. .driver = {
  117. .name = "e750-audio",
  118. .pm = &snd_soc_pm_ops,
  119. },
  120. .probe = e750_probe,
  121. .remove = e750_remove,
  122. };
  123. module_platform_driver(e750_driver);
  124. /* Module information */
  125. MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
  126. MODULE_DESCRIPTION("ALSA SoC driver for e750");
  127. MODULE_LICENSE("GPL v2");
  128. MODULE_ALIAS("platform:e750-audio");