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Diffstat (limited to 'sound/soc/pxa/tosa.c')
-rw-r--r--sound/soc/pxa/tosa.c289
1 files changed, 289 insertions, 0 deletions
diff --git a/sound/soc/pxa/tosa.c b/sound/soc/pxa/tosa.c
new file mode 100644
index 00000000..2aec63f3
--- /dev/null
+++ b/sound/soc/pxa/tosa.c
@@ -0,0 +1,289 @@
+/*
+ * tosa.c -- SoC audio for Tosa
+ *
+ * Copyright 2005 Wolfson Microelectronics PLC.
+ * Copyright 2005 Openedhand Ltd.
+ *
+ * Authors: Liam Girdwood <lrg@slimlogic.co.uk>
+ * Richard Purdie <richard@openedhand.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; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * GPIO's
+ * 1 - Jack Insertion
+ * 5 - Hookswitch (headset answer/hang up switch)
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/device.h>
+#include <linux/gpio.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+
+#include <asm/mach-types.h>
+#include <mach/tosa.h>
+#include <mach/audio.h>
+
+#include "../codecs/wm9712.h"
+#include "pxa2xx-ac97.h"
+
+#define TOSA_HP 0
+#define TOSA_MIC_INT 1
+#define TOSA_HEADSET 2
+#define TOSA_HP_OFF 3
+#define TOSA_SPK_ON 0
+#define TOSA_SPK_OFF 1
+
+static int tosa_jack_func;
+static int tosa_spk_func;
+
+static void tosa_ext_control(struct snd_soc_codec *codec)
+{
+ struct snd_soc_dapm_context *dapm = &codec->dapm;
+
+ /* set up jack connection */
+ switch (tosa_jack_func) {
+ case TOSA_HP:
+ snd_soc_dapm_disable_pin(dapm, "Mic (Internal)");
+ snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
+ snd_soc_dapm_disable_pin(dapm, "Headset Jack");
+ break;
+ case TOSA_MIC_INT:
+ snd_soc_dapm_enable_pin(dapm, "Mic (Internal)");
+ snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
+ snd_soc_dapm_disable_pin(dapm, "Headset Jack");
+ break;
+ case TOSA_HEADSET:
+ snd_soc_dapm_disable_pin(dapm, "Mic (Internal)");
+ snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
+ snd_soc_dapm_enable_pin(dapm, "Headset Jack");
+ break;
+ }
+
+ if (tosa_spk_func == TOSA_SPK_ON)
+ snd_soc_dapm_enable_pin(dapm, "Speaker");
+ else
+ snd_soc_dapm_disable_pin(dapm, "Speaker");
+
+ snd_soc_dapm_sync(dapm);
+}
+
+static int tosa_startup(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_codec *codec = rtd->codec;
+
+ mutex_lock(&codec->mutex);
+
+ /* check the jack status at stream startup */
+ tosa_ext_control(codec);
+
+ mutex_unlock(&codec->mutex);
+
+ return 0;
+}
+
+static struct snd_soc_ops tosa_ops = {
+ .startup = tosa_startup,
+};
+
+static int tosa_get_jack(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ ucontrol->value.integer.value[0] = tosa_jack_func;
+ return 0;
+}
+
+static int tosa_set_jack(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+
+ if (tosa_jack_func == ucontrol->value.integer.value[0])
+ return 0;
+
+ tosa_jack_func = ucontrol->value.integer.value[0];
+ tosa_ext_control(codec);
+ return 1;
+}
+
+static int tosa_get_spk(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ ucontrol->value.integer.value[0] = tosa_spk_func;
+ return 0;
+}
+
+static int tosa_set_spk(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+
+ if (tosa_spk_func == ucontrol->value.integer.value[0])
+ return 0;
+
+ tosa_spk_func = ucontrol->value.integer.value[0];
+ tosa_ext_control(codec);
+ return 1;
+}
+
+/* tosa dapm event handlers */
+static int tosa_hp_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *k, int event)
+{
+ gpio_set_value(TOSA_GPIO_L_MUTE, SND_SOC_DAPM_EVENT_ON(event) ? 1 :0);
+ return 0;
+}
+
+/* tosa machine dapm widgets */
+static const struct snd_soc_dapm_widget tosa_dapm_widgets[] = {
+SND_SOC_DAPM_HP("Headphone Jack", tosa_hp_event),
+SND_SOC_DAPM_HP("Headset Jack", NULL),
+SND_SOC_DAPM_MIC("Mic (Internal)", NULL),
+SND_SOC_DAPM_SPK("Speaker", NULL),
+};
+
+/* tosa audio map */
+static const struct snd_soc_dapm_route audio_map[] = {
+
+ /* headphone connected to HPOUTL, HPOUTR */
+ {"Headphone Jack", NULL, "HPOUTL"},
+ {"Headphone Jack", NULL, "HPOUTR"},
+
+ /* ext speaker connected to LOUT2, ROUT2 */
+ {"Speaker", NULL, "LOUT2"},
+ {"Speaker", NULL, "ROUT2"},
+
+ /* internal mic is connected to mic1, mic2 differential - with bias */
+ {"MIC1", NULL, "Mic Bias"},
+ {"MIC2", NULL, "Mic Bias"},
+ {"Mic Bias", NULL, "Mic (Internal)"},
+
+ /* headset is connected to HPOUTR, and LINEINR with bias */
+ {"Headset Jack", NULL, "HPOUTR"},
+ {"LINEINR", NULL, "Mic Bias"},
+ {"Mic Bias", NULL, "Headset Jack"},
+};
+
+static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset",
+ "Off"};
+static const char *spk_function[] = {"On", "Off"};
+static const struct soc_enum tosa_enum[] = {
+ SOC_ENUM_SINGLE_EXT(5, jack_function),
+ SOC_ENUM_SINGLE_EXT(2, spk_function),
+};
+
+static const struct snd_kcontrol_new tosa_controls[] = {
+ SOC_ENUM_EXT("Jack Function", tosa_enum[0], tosa_get_jack,
+ tosa_set_jack),
+ SOC_ENUM_EXT("Speaker Function", tosa_enum[1], tosa_get_spk,
+ tosa_set_spk),
+};
+
+static int tosa_ac97_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_codec *codec = rtd->codec;
+ struct snd_soc_dapm_context *dapm = &codec->dapm;
+ int err;
+
+ snd_soc_dapm_nc_pin(dapm, "OUT3");
+ snd_soc_dapm_nc_pin(dapm, "MONOOUT");
+
+ /* add tosa specific controls */
+ err = snd_soc_add_codec_controls(codec, tosa_controls,
+ ARRAY_SIZE(tosa_controls));
+ if (err < 0)
+ return err;
+
+ /* add tosa specific widgets */
+ snd_soc_dapm_new_controls(dapm, tosa_dapm_widgets,
+ ARRAY_SIZE(tosa_dapm_widgets));
+
+ /* set up tosa specific audio path audio_map */
+ snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
+
+ return 0;
+}
+
+static struct snd_soc_dai_link tosa_dai[] = {
+{
+ .name = "AC97",
+ .stream_name = "AC97 HiFi",
+ .cpu_dai_name = "pxa2xx-ac97",
+ .codec_dai_name = "wm9712-hifi",
+ .platform_name = "pxa-pcm-audio",
+ .codec_name = "wm9712-codec",
+ .init = tosa_ac97_init,
+ .ops = &tosa_ops,
+},
+{
+ .name = "AC97 Aux",
+ .stream_name = "AC97 Aux",
+ .cpu_dai_name = "pxa2xx-ac97-aux",
+ .codec_dai_name = "wm9712-aux",
+ .platform_name = "pxa-pcm-audio",
+ .codec_name = "wm9712-codec",
+ .ops = &tosa_ops,
+},
+};
+
+static struct snd_soc_card tosa = {
+ .name = "Tosa",
+ .owner = THIS_MODULE,
+ .dai_link = tosa_dai,
+ .num_links = ARRAY_SIZE(tosa_dai),
+};
+
+static int __devinit tosa_probe(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = &tosa;
+ int ret;
+
+ ret = gpio_request_one(TOSA_GPIO_L_MUTE, GPIOF_OUT_INIT_LOW,
+ "Headphone Jack");
+ 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(TOSA_GPIO_L_MUTE);
+ }
+ return ret;
+}
+
+static int __devexit tosa_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+ gpio_free(TOSA_GPIO_L_MUTE);
+ snd_soc_unregister_card(card);
+ return 0;
+}
+
+static struct platform_driver tosa_driver = {
+ .driver = {
+ .name = "tosa-audio",
+ .owner = THIS_MODULE,
+ },
+ .probe = tosa_probe,
+ .remove = __devexit_p(tosa_remove),
+};
+
+module_platform_driver(tosa_driver);
+
+/* Module information */
+MODULE_AUTHOR("Richard Purdie");
+MODULE_DESCRIPTION("ALSA SoC Tosa");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:tosa-audio");
generated by cgit (git 2.34.1) at 2024-12-20 08:57:33 +0000