1 files changed, 262 insertions, 0 deletions
diff --git a/sound/soc/pxa/tosa.c b/sound/soc/pxa/tosa.c
new file mode 100644
index 000000000..3b40b5fa5
--- /dev/null
+++ b/sound/soc/pxa/tosa.c
@@ -0,0 +1,262 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * 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>
+ *
+ * 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>
+
+#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_dapm_context *dapm)
+{
+
+	snd_soc_dapm_mutex_lock(dapm);
+
+	/* set up jack connection */
+	switch (tosa_jack_func) {
+	case TOSA_HP:
+		snd_soc_dapm_disable_pin_unlocked(dapm, "Mic (Internal)");
+		snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack");
+		snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
+		break;
+	case TOSA_MIC_INT:
+		snd_soc_dapm_enable_pin_unlocked(dapm, "Mic (Internal)");
+		snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
+		snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
+		break;
+	case TOSA_HEADSET:
+		snd_soc_dapm_disable_pin_unlocked(dapm, "Mic (Internal)");
+		snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
+		snd_soc_dapm_enable_pin_unlocked(dapm, "Headset Jack");
+		break;
+	}
+
+	if (tosa_spk_func == TOSA_SPK_ON)
+		snd_soc_dapm_enable_pin_unlocked(dapm, "Speaker");
+	else
+		snd_soc_dapm_disable_pin_unlocked(dapm, "Speaker");
+
+	snd_soc_dapm_sync_unlocked(dapm);
+
+	snd_soc_dapm_mutex_unlock(dapm);
+}
+
+static int tosa_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+
+	/* check the jack status at stream startup */
+	tosa_ext_control(&rtd->card->dapm);
+
+	return 0;
+}
+
+static const 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.enumerated.item[0] = tosa_jack_func;
+	return 0;
+}
+
+static int tosa_set_jack(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+
+	if (tosa_jack_func == ucontrol->value.enumerated.item[0])
+		return 0;
+
+	tosa_jack_func = ucontrol->value.enumerated.item[0];
+	tosa_ext_control(&card->dapm);
+	return 1;
+}
+
+static int tosa_get_spk(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	ucontrol->value.enumerated.item[0] = tosa_spk_func;
+	return 0;
+}
+
+static int tosa_set_spk(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+
+	if (tosa_spk_func == ucontrol->value.enumerated.item[0])
+		return 0;
+
+	tosa_spk_func = ucontrol->value.enumerated.item[0];
+	tosa_ext_control(&card->dapm);
+	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 * const jack_function[] = {"Headphone", "Mic", "Line",
+	"Headset", "Off"};
+static const char * const 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),
+};
+
+SND_SOC_DAILINK_DEFS(ac97,
+	DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97")),
+	DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-hifi")),
+	DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
+
+SND_SOC_DAILINK_DEFS(ac97_aux,
+	DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97-aux")),
+	DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-aux")),
+	DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
+
+static struct snd_soc_dai_link tosa_dai[] = {
+{
+	.name = "AC97",
+	.stream_name = "AC97 HiFi",
+	.ops = &tosa_ops,
+	SND_SOC_DAILINK_REG(ac97),
+},
+{
+	.name = "AC97 Aux",
+	.stream_name = "AC97 Aux",
+	.ops = &tosa_ops,
+	SND_SOC_DAILINK_REG(ac97_aux),
+},
+};
+
+static struct snd_soc_card tosa = {
+	.name = "Tosa",
+	.owner = THIS_MODULE,
+	.dai_link = tosa_dai,
+	.num_links = ARRAY_SIZE(tosa_dai),
+
+	.controls = tosa_controls,
+	.num_controls = ARRAY_SIZE(tosa_controls),
+	.dapm_widgets = tosa_dapm_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(tosa_dapm_widgets),
+	.dapm_routes = audio_map,
+	.num_dapm_routes = ARRAY_SIZE(audio_map),
+	.fully_routed = true,
+};
+
+static int 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 = devm_snd_soc_register_card(&pdev->dev, 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 tosa_remove(struct platform_device *pdev)
+{
+	gpio_free(TOSA_GPIO_L_MUTE);
+	return 0;
+}
+
+static struct platform_driver tosa_driver = {
+	.driver		= {
+		.name	= "tosa-audio",
+		.pm     = &snd_soc_pm_ops,
+	},
+	.probe		= tosa_probe,
+	.remove		= 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");