summaryrefslogtreecommitdiff
path: root/sound/soc/pxa/e750_wm9705.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/soc/pxa/e750_wm9705.c')
-rw-r--r--sound/soc/pxa/e750_wm9705.c156
1 files changed, 156 insertions, 0 deletions
diff --git a/sound/soc/pxa/e750_wm9705.c b/sound/soc/pxa/e750_wm9705.c
new file mode 100644
index 000000000..48f2d7c2e
--- /dev/null
+++ b/sound/soc/pxa/e750_wm9705.c
@@ -0,0 +1,156 @@
+/*
+ * e750-wm9705.c -- SoC audio for e750
+ *
+ * Copyright 2007 (c) Ian Molton <spyro@f2s.com>
+ *
+ * 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; version 2 ONLY.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/gpio.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+
+#include <mach/audio.h>
+#include <mach/eseries-gpio.h>
+
+#include <asm/mach-types.h>
+
+#include "../codecs/wm9705.h"
+#include "pxa2xx-ac97.h"
+
+static int e750_spk_amp_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ if (event & SND_SOC_DAPM_PRE_PMU)
+ gpio_set_value(GPIO_E750_SPK_AMP_OFF, 0);
+ else if (event & SND_SOC_DAPM_POST_PMD)
+ gpio_set_value(GPIO_E750_SPK_AMP_OFF, 1);
+
+ return 0;
+}
+
+static int e750_hp_amp_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ if (event & SND_SOC_DAPM_PRE_PMU)
+ gpio_set_value(GPIO_E750_HP_AMP_OFF, 0);
+ else if (event & SND_SOC_DAPM_POST_PMD)
+ gpio_set_value(GPIO_E750_HP_AMP_OFF, 1);
+
+ return 0;
+}
+
+static const struct snd_soc_dapm_widget e750_dapm_widgets[] = {
+ SND_SOC_DAPM_HP("Headphone Jack", NULL),
+ SND_SOC_DAPM_SPK("Speaker", NULL),
+ SND_SOC_DAPM_MIC("Mic (Internal)", NULL),
+ SND_SOC_DAPM_PGA_E("Headphone Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
+ e750_hp_amp_event, SND_SOC_DAPM_PRE_PMU |
+ SND_SOC_DAPM_POST_PMD),
+ SND_SOC_DAPM_PGA_E("Speaker Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
+ e750_spk_amp_event, SND_SOC_DAPM_PRE_PMU |
+ SND_SOC_DAPM_POST_PMD),
+};
+
+static const struct snd_soc_dapm_route audio_map[] = {
+ {"Headphone Amp", NULL, "HPOUTL"},
+ {"Headphone Amp", NULL, "HPOUTR"},
+ {"Headphone Jack", NULL, "Headphone Amp"},
+
+ {"Speaker Amp", NULL, "MONOOUT"},
+ {"Speaker", NULL, "Speaker Amp"},
+
+ {"MIC1", NULL, "Mic (Internal)"},
+};
+
+static struct snd_soc_dai_link e750_dai[] = {
+ {
+ .name = "AC97",
+ .stream_name = "AC97 HiFi",
+ .cpu_dai_name = "pxa2xx-ac97",
+ .codec_dai_name = "wm9705-hifi",
+ .platform_name = "pxa-pcm-audio",
+ .codec_name = "wm9705-codec",
+ /* use ops to check startup state */
+ },
+ {
+ .name = "AC97 Aux",
+ .stream_name = "AC97 Aux",
+ .cpu_dai_name = "pxa2xx-ac97-aux",
+ .codec_dai_name ="wm9705-aux",
+ .platform_name = "pxa-pcm-audio",
+ .codec_name = "wm9705-codec",
+ },
+};
+
+static struct snd_soc_card e750 = {
+ .name = "Toshiba e750",
+ .owner = THIS_MODULE,
+ .dai_link = e750_dai,
+ .num_links = ARRAY_SIZE(e750_dai),
+
+ .dapm_widgets = e750_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(e750_dapm_widgets),
+ .dapm_routes = audio_map,
+ .num_dapm_routes = ARRAY_SIZE(audio_map),
+ .fully_routed = true,
+};
+
+static struct gpio e750_audio_gpios[] = {
+ { GPIO_E750_HP_AMP_OFF, GPIOF_OUT_INIT_HIGH, "Headphone amp" },
+ { GPIO_E750_SPK_AMP_OFF, GPIOF_OUT_INIT_HIGH, "Speaker amp" },
+};
+
+static int e750_probe(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = &e750;
+ int ret;
+
+ ret = gpio_request_array(e750_audio_gpios,
+ ARRAY_SIZE(e750_audio_gpios));
+ if (ret)
+ return ret;
+
+ card->dev = &pdev->dev;
+
+ ret = snd_soc_register_card(card);
+ if (ret) {
+ dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
+ ret);
+ gpio_free_array(e750_audio_gpios, ARRAY_SIZE(e750_audio_gpios));
+ }
+ return ret;
+}
+
+static int e750_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+ gpio_free_array(e750_audio_gpios, ARRAY_SIZE(e750_audio_gpios));
+ snd_soc_unregister_card(card);
+ return 0;
+}
+
+static struct platform_driver e750_driver = {
+ .driver = {
+ .name = "e750-audio",
+ .pm = &snd_soc_pm_ops,
+ },
+ .probe = e750_probe,
+ .remove = e750_remove,
+};
+
+module_platform_driver(e750_driver);
+
+/* Module information */
+MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
+MODULE_DESCRIPTION("ALSA SoC driver for e750");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:e750-audio");