Adding upstream version 6.1.76.upstream/6.1.76upstream

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

1 files changed, 207 insertions, 0 deletions

diff --git a/sound/soc/pxa/hx4700.c b/sound/soc/pxa/hx4700.c
new file mode 100644
index 000000000..a323ddb8f
--- /dev/null
+++ b/sound/soc/pxa/hx4700.c
@@ -0,0 +1,207 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * SoC audio for HP iPAQ hx4700
+ *
+ * Copyright (c) 2009 Philipp Zabel
+ */
+
+#include <linux/module.h>
+#include <linux/timer.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+
+#include <sound/core.h>
+#include <sound/jack.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#include <asm/mach-types.h>
+#include "pxa2xx-i2s.h"
+
+static struct gpio_desc *gpiod_hp_driver, *gpiod_spk_sd;
+static struct snd_soc_jack hs_jack;
+
+/* Headphones jack detection DAPM pin */
+static struct snd_soc_jack_pin hs_jack_pin[] = {
+	{
+		.pin	= "Headphone Jack",
+		.mask	= SND_JACK_HEADPHONE,
+		.invert	= 1,
+	},
+	{
+		.pin	= "Speaker",
+		/* disable speaker when hp jack is inserted */
+		.mask   = SND_JACK_HEADPHONE,
+	},
+};
+
+/* Headphones jack detection GPIO */
+static struct snd_soc_jack_gpio hs_jack_gpio = {
+	.name		= "earphone-det",
+	.report		= SND_JACK_HEADPHONE,
+	.debounce_time	= 200,
+};
+
+/*
+ * iPAQ hx4700 uses I2S for capture and playback.
+ */
+static int hx4700_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);
+	int ret = 0;
+
+	/* set the I2S system clock as output */
+	ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
+			SND_SOC_CLOCK_OUT);
+	if (ret < 0)
+		return ret;
+
+	/* inform codec driver about clock freq *
+	 * (PXA I2S always uses divider 256)    */
+	ret = snd_soc_dai_set_sysclk(codec_dai, 0, 256 * params_rate(params),
+			SND_SOC_CLOCK_IN);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static const struct snd_soc_ops hx4700_ops = {
+	.hw_params = hx4700_hw_params,
+};
+
+static int hx4700_spk_power(struct snd_soc_dapm_widget *w,
+			    struct snd_kcontrol *k, int event)
+{
+	gpiod_set_value(gpiod_spk_sd, !SND_SOC_DAPM_EVENT_ON(event));
+	return 0;
+}
+
+static int hx4700_hp_power(struct snd_soc_dapm_widget *w,
+			   struct snd_kcontrol *k, int event)
+{
+	gpiod_set_value(gpiod_hp_driver, !!SND_SOC_DAPM_EVENT_ON(event));
+	return 0;
+}
+
+/* hx4700 machine dapm widgets */
+static const struct snd_soc_dapm_widget hx4700_dapm_widgets[] = {
+	SND_SOC_DAPM_HP("Headphone Jack", hx4700_hp_power),
+	SND_SOC_DAPM_SPK("Speaker", hx4700_spk_power),
+	SND_SOC_DAPM_MIC("Built-in Microphone", NULL),
+};
+
+/* hx4700 machine audio_map */
+static const struct snd_soc_dapm_route hx4700_audio_map[] = {
+
+	/* Headphone connected to LOUT, ROUT */
+	{"Headphone Jack", NULL, "LOUT"},
+	{"Headphone Jack", NULL, "ROUT"},
+
+	/* Speaker connected to MOUT2 */
+	{"Speaker", NULL, "MOUT2"},
+
+	/* Microphone connected to MICIN */
+	{"MICIN", NULL, "Built-in Microphone"},
+	{"AIN", NULL, "MICOUT"},
+};
+
+/*
+ * Logic for a ak4641 as connected on a HP iPAQ hx4700
+ */
+static int hx4700_ak4641_init(struct snd_soc_pcm_runtime *rtd)
+{
+	int err;
+
+	/* Jack detection API stuff */
+	err = snd_soc_card_jack_new_pins(rtd->card, "Headphone Jack",
+					 SND_JACK_HEADPHONE, &hs_jack,
+					 hs_jack_pin, ARRAY_SIZE(hs_jack_pin));
+	if (err)
+		return err;
+
+	err = snd_soc_jack_add_gpios(&hs_jack, 1, &hs_jack_gpio);
+
+	return err;
+}
+
+/* hx4700 digital audio interface glue - connects codec <--> CPU */
+SND_SOC_DAILINK_DEFS(ak4641,
+	DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-i2s")),
+	DAILINK_COMP_ARRAY(COMP_CODEC("ak4641.0-0012", "ak4641-hifi")),
+	DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
+
+static struct snd_soc_dai_link hx4700_dai = {
+	.name = "ak4641",
+	.stream_name = "AK4641",
+	.init = hx4700_ak4641_init,
+	.dai_fmt = SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF |
+		   SND_SOC_DAIFMT_CBS_CFS,
+	.ops = &hx4700_ops,
+	SND_SOC_DAILINK_REG(ak4641),
+};
+
+/* hx4700 audio machine driver */
+static struct snd_soc_card snd_soc_card_hx4700 = {
+	.name			= "iPAQ hx4700",
+	.owner			= THIS_MODULE,
+	.dai_link		= &hx4700_dai,
+	.num_links		= 1,
+	.dapm_widgets		= hx4700_dapm_widgets,
+	.num_dapm_widgets	= ARRAY_SIZE(hx4700_dapm_widgets),
+	.dapm_routes		= hx4700_audio_map,
+	.num_dapm_routes	= ARRAY_SIZE(hx4700_audio_map),
+	.fully_routed		= true,
+};
+
+static int hx4700_audio_probe(struct platform_device *pdev)
+{
+	int ret;
+
+	if (!machine_is_h4700())
+		return -ENODEV;
+
+	gpiod_hp_driver = devm_gpiod_get(&pdev->dev, "hp-driver", GPIOD_ASIS);
+	ret = PTR_ERR_OR_ZERO(gpiod_hp_driver);
+	if (ret)
+		return ret;
+	gpiod_spk_sd = devm_gpiod_get(&pdev->dev, "spk-sd", GPIOD_ASIS);
+	ret = PTR_ERR_OR_ZERO(gpiod_spk_sd);
+	if (ret)
+		return ret;
+
+	hs_jack_gpio.gpiod_dev = &pdev->dev;
+	snd_soc_card_hx4700.dev = &pdev->dev;
+	ret = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_hx4700);
+
+	return ret;
+}
+
+static int hx4700_audio_remove(struct platform_device *pdev)
+{
+	gpiod_set_value(gpiod_hp_driver, 0);
+	gpiod_set_value(gpiod_spk_sd, 0);
+	return 0;
+}
+
+static struct platform_driver hx4700_audio_driver = {
+	.driver	= {
+		.name = "hx4700-audio",
+		.pm = &snd_soc_pm_ops,
+	},
+	.probe	= hx4700_audio_probe,
+	.remove	= hx4700_audio_remove,
+};
+
+module_platform_driver(hx4700_audio_driver);
+
+MODULE_AUTHOR("Philipp Zabel");
+MODULE_DESCRIPTION("ALSA SoC iPAQ hx4700");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:hx4700-audio");