Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 332 insertions, 0 deletions

diff --git a/sound/soc/pxa/corgi.c b/sound/soc/pxa/corgi.c
new file mode 100644
index 000000000..4489d2c8b
--- /dev/null
+++ b/sound/soc/pxa/corgi.c
@@ -0,0 +1,332 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * corgi.c  --  SoC audio for Corgi
+ *
+ * Copyright 2005 Wolfson Microelectronics PLC.
+ * Copyright 2005 Openedhand Ltd.
+ *
+ * Authors: Liam Girdwood <lrg@slimlogic.co.uk>
+ *          Richard Purdie <richard@openedhand.com>
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/timer.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+
+#include <asm/mach-types.h>
+#include <linux/platform_data/asoc-pxa.h>
+
+#include "../codecs/wm8731.h"
+#include "pxa2xx-i2s.h"
+
+#define CORGI_HP        0
+#define CORGI_MIC       1
+#define CORGI_LINE      2
+#define CORGI_HEADSET   3
+#define CORGI_HP_OFF    4
+#define CORGI_SPK_ON    0
+#define CORGI_SPK_OFF   1
+
+ /* audio clock in Hz - rounded from 12.235MHz */
+#define CORGI_AUDIO_CLOCK 12288000
+
+static int corgi_jack_func;
+static int corgi_spk_func;
+
+static struct gpio_desc *gpiod_mute_l, *gpiod_mute_r,
+			*gpiod_apm_on, *gpiod_mic_bias;
+
+static void corgi_ext_control(struct snd_soc_dapm_context *dapm)
+{
+	snd_soc_dapm_mutex_lock(dapm);
+
+	/* set up jack connection */
+	switch (corgi_jack_func) {
+	case CORGI_HP:
+		/* set = unmute headphone */
+		gpiod_set_value(gpiod_mute_l, 1);
+		gpiod_set_value(gpiod_mute_r, 1);
+		snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Jack");
+		snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
+		snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack");
+		snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
+		break;
+	case CORGI_MIC:
+		/* reset = mute headphone */
+		gpiod_set_value(gpiod_mute_l, 0);
+		gpiod_set_value(gpiod_mute_r, 0);
+		snd_soc_dapm_enable_pin_unlocked(dapm, "Mic Jack");
+		snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
+		snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
+		snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
+		break;
+	case CORGI_LINE:
+		gpiod_set_value(gpiod_mute_l, 0);
+		gpiod_set_value(gpiod_mute_r, 0);
+		snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Jack");
+		snd_soc_dapm_enable_pin_unlocked(dapm, "Line Jack");
+		snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
+		snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
+		break;
+	case CORGI_HEADSET:
+		gpiod_set_value(gpiod_mute_l, 0);
+		gpiod_set_value(gpiod_mute_r, 1);
+		snd_soc_dapm_enable_pin_unlocked(dapm, "Mic Jack");
+		snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
+		snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
+		snd_soc_dapm_enable_pin_unlocked(dapm, "Headset Jack");
+		break;
+	}
+
+	if (corgi_spk_func == CORGI_SPK_ON)
+		snd_soc_dapm_enable_pin_unlocked(dapm, "Ext Spk");
+	else
+		snd_soc_dapm_disable_pin_unlocked(dapm, "Ext Spk");
+
+	/* signal a DAPM event */
+	snd_soc_dapm_sync_unlocked(dapm);
+
+	snd_soc_dapm_mutex_unlock(dapm);
+}
+
+static int corgi_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+
+	/* check the jack status at stream startup */
+	corgi_ext_control(&rtd->card->dapm);
+
+	return 0;
+}
+
+/* we need to unmute the HP at shutdown as the mute burns power on corgi */
+static void corgi_shutdown(struct snd_pcm_substream *substream)
+{
+	/* set = unmute headphone */
+	gpiod_set_value(gpiod_mute_l, 1);
+	gpiod_set_value(gpiod_mute_r, 1);
+}
+
+static int corgi_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+	unsigned int clk = 0;
+	int ret = 0;
+
+	switch (params_rate(params)) {
+	case 8000:
+	case 16000:
+	case 48000:
+	case 96000:
+		clk = 12288000;
+		break;
+	case 11025:
+	case 22050:
+	case 44100:
+		clk = 11289600;
+		break;
+	}
+
+	/* set the codec system clock for DAC and ADC */
+	ret = snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL, clk,
+		SND_SOC_CLOCK_IN);
+	if (ret < 0)
+		return ret;
+
+	/* set the I2S system clock as input (unused) */
+	ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
+		SND_SOC_CLOCK_IN);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static const struct snd_soc_ops corgi_ops = {
+	.startup = corgi_startup,
+	.hw_params = corgi_hw_params,
+	.shutdown = corgi_shutdown,
+};
+
+static int corgi_get_jack(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	ucontrol->value.enumerated.item[0] = corgi_jack_func;
+	return 0;
+}
+
+static int corgi_set_jack(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+
+	if (corgi_jack_func == ucontrol->value.enumerated.item[0])
+		return 0;
+
+	corgi_jack_func = ucontrol->value.enumerated.item[0];
+	corgi_ext_control(&card->dapm);
+	return 1;
+}
+
+static int corgi_get_spk(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	ucontrol->value.enumerated.item[0] = corgi_spk_func;
+	return 0;
+}
+
+static int corgi_set_spk(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_card *card =  snd_kcontrol_chip(kcontrol);
+
+	if (corgi_spk_func == ucontrol->value.enumerated.item[0])
+		return 0;
+
+	corgi_spk_func = ucontrol->value.enumerated.item[0];
+	corgi_ext_control(&card->dapm);
+	return 1;
+}
+
+static int corgi_amp_event(struct snd_soc_dapm_widget *w,
+	struct snd_kcontrol *k, int event)
+{
+	gpiod_set_value(gpiod_apm_on, SND_SOC_DAPM_EVENT_ON(event));
+	return 0;
+}
+
+static int corgi_mic_event(struct snd_soc_dapm_widget *w,
+	struct snd_kcontrol *k, int event)
+{
+	gpiod_set_value(gpiod_mic_bias, SND_SOC_DAPM_EVENT_ON(event));
+	return 0;
+}
+
+/* corgi machine dapm widgets */
+static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = {
+SND_SOC_DAPM_HP("Headphone Jack", NULL),
+SND_SOC_DAPM_MIC("Mic Jack", corgi_mic_event),
+SND_SOC_DAPM_SPK("Ext Spk", corgi_amp_event),
+SND_SOC_DAPM_LINE("Line Jack", NULL),
+SND_SOC_DAPM_HP("Headset Jack", NULL),
+};
+
+/* Corgi machine audio map (connections to the codec pins) */
+static const struct snd_soc_dapm_route corgi_audio_map[] = {
+
+	/* headset Jack  - in = micin, out = LHPOUT*/
+	{"Headset Jack", NULL, "LHPOUT"},
+
+	/* headphone connected to LHPOUT1, RHPOUT1 */
+	{"Headphone Jack", NULL, "LHPOUT"},
+	{"Headphone Jack", NULL, "RHPOUT"},
+
+	/* speaker connected to LOUT, ROUT */
+	{"Ext Spk", NULL, "ROUT"},
+	{"Ext Spk", NULL, "LOUT"},
+
+	/* mic is connected to MICIN (via right channel of headphone jack) */
+	{"MICIN", NULL, "Mic Jack"},
+
+	/* Same as the above but no mic bias for line signals */
+	{"MICIN", NULL, "Line 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 corgi_enum[] = {
+	SOC_ENUM_SINGLE_EXT(5, jack_function),
+	SOC_ENUM_SINGLE_EXT(2, spk_function),
+};
+
+static const struct snd_kcontrol_new wm8731_corgi_controls[] = {
+	SOC_ENUM_EXT("Jack Function", corgi_enum[0], corgi_get_jack,
+		corgi_set_jack),
+	SOC_ENUM_EXT("Speaker Function", corgi_enum[1], corgi_get_spk,
+		corgi_set_spk),
+};
+
+/* corgi digital audio interface glue - connects codec <--> CPU */
+SND_SOC_DAILINK_DEFS(wm8731,
+	DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-i2s")),
+	DAILINK_COMP_ARRAY(COMP_CODEC("wm8731.0-001b", "wm8731-hifi")),
+	DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
+
+static struct snd_soc_dai_link corgi_dai = {
+	.name = "WM8731",
+	.stream_name = "WM8731",
+	.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+		   SND_SOC_DAIFMT_CBS_CFS,
+	.ops = &corgi_ops,
+	SND_SOC_DAILINK_REG(wm8731),
+};
+
+/* corgi audio machine driver */
+static struct snd_soc_card corgi = {
+	.name = "Corgi",
+	.owner = THIS_MODULE,
+	.dai_link = &corgi_dai,
+	.num_links = 1,
+
+	.controls = wm8731_corgi_controls,
+	.num_controls = ARRAY_SIZE(wm8731_corgi_controls),
+	.dapm_widgets = wm8731_dapm_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(wm8731_dapm_widgets),
+	.dapm_routes = corgi_audio_map,
+	.num_dapm_routes = ARRAY_SIZE(corgi_audio_map),
+	.fully_routed = true,
+};
+
+static int corgi_probe(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = &corgi;
+	int ret;
+
+	card->dev = &pdev->dev;
+
+	gpiod_mute_l = devm_gpiod_get(&pdev->dev, "mute-l", GPIOD_OUT_HIGH);
+	if (IS_ERR(gpiod_mute_l))
+		return PTR_ERR(gpiod_mute_l);
+	gpiod_mute_r = devm_gpiod_get(&pdev->dev, "mute-r", GPIOD_OUT_HIGH);
+	if (IS_ERR(gpiod_mute_r))
+		return PTR_ERR(gpiod_mute_r);
+	gpiod_apm_on = devm_gpiod_get(&pdev->dev, "apm-on", GPIOD_OUT_LOW);
+	if (IS_ERR(gpiod_apm_on))
+		return PTR_ERR(gpiod_apm_on);
+	gpiod_mic_bias = devm_gpiod_get(&pdev->dev, "mic-bias", GPIOD_OUT_LOW);
+	if (IS_ERR(gpiod_mic_bias))
+		return PTR_ERR(gpiod_mic_bias);
+
+	ret = devm_snd_soc_register_card(&pdev->dev, card);
+	if (ret)
+		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
+			ret);
+	return ret;
+}
+
+static struct platform_driver corgi_driver = {
+	.driver		= {
+		.name	= "corgi-audio",
+		.pm     = &snd_soc_pm_ops,
+	},
+	.probe		= corgi_probe,
+};
+
+module_platform_driver(corgi_driver);
+
+/* Module information */
+MODULE_AUTHOR("Richard Purdie");
+MODULE_DESCRIPTION("ALSA SoC Corgi");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:corgi-audio");