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Diffstat (limited to 'target/linux/brcm2708/patches-4.14/950-0087-Driver-support-for-Google-voiceHAT-soundcard.patch')
-rw-r--r--target/linux/brcm2708/patches-4.14/950-0087-Driver-support-for-Google-voiceHAT-soundcard.patch383
1 files changed, 0 insertions, 383 deletions
diff --git a/target/linux/brcm2708/patches-4.14/950-0087-Driver-support-for-Google-voiceHAT-soundcard.patch b/target/linux/brcm2708/patches-4.14/950-0087-Driver-support-for-Google-voiceHAT-soundcard.patch
deleted file mode 100644
index ac02aca893..0000000000
--- a/target/linux/brcm2708/patches-4.14/950-0087-Driver-support-for-Google-voiceHAT-soundcard.patch
+++ /dev/null
@@ -1,383 +0,0 @@
-From 5f1aa4352ca253ca76ee49c51292994d517d7e4e Mon Sep 17 00:00:00 2001
-From: Peter Malkin <petermalkin@google.com>
-Date: Mon, 27 Mar 2017 16:38:21 -0700
-Subject: [PATCH 087/454] Driver support for Google voiceHAT soundcard.
-
----
- sound/soc/bcm/Kconfig | 7 +
- sound/soc/bcm/Makefile | 6 +
- sound/soc/bcm/googlevoicehat-codec.c | 199 +++++++++++++++++++++++
- sound/soc/bcm/googlevoicehat-soundcard.c | 124 ++++++++++++++
- 4 files changed, 336 insertions(+)
- create mode 100644 sound/soc/bcm/googlevoicehat-codec.c
- create mode 100644 sound/soc/bcm/googlevoicehat-soundcard.c
-
---- a/sound/soc/bcm/Kconfig
-+++ b/sound/soc/bcm/Kconfig
-@@ -18,6 +18,13 @@ config SND_SOC_CYGNUS
-
- If you don't know what to do here, say N.
-
-+config SND_BCM2708_SOC_GOOGLEVOICEHAT_SOUNDCARD
-+ tristate "Support for Google voiceHAT soundcard"
-+ depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
-+ select SND_SOC_VOICEHAT
-+ help
-+ Say Y or M if you want to add support for voiceHAT soundcard.
-+
- config SND_BCM2708_SOC_HIFIBERRY_DAC
- tristate "Support for HifiBerry DAC"
- depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
---- a/sound/soc/bcm/Makefile
-+++ b/sound/soc/bcm/Makefile
-@@ -8,8 +8,12 @@ snd-soc-cygnus-objs := cygnus-pcm.o cygn
-
- obj-$(CONFIG_SND_SOC_CYGNUS) += snd-soc-cygnus.o
-
-+# Google voiceHAT custom codec support
-+snd-soc-googlevoicehat-codec-objs := googlevoicehat-codec.o
-+
- # BCM2708 Machine Support
- snd-soc-adau1977-adc-objs := adau1977-adc.o
-+snd-soc-googlevoicehat-soundcard-objs := googlevoicehat-soundcard.o
- snd-soc-hifiberry-amp-objs := hifiberry_amp.o
- snd-soc-hifiberry-dac-objs := hifiberry_dac.o
- snd-soc-hifiberry-dacplus-objs := hifiberry_dacplus.o
-@@ -34,6 +38,8 @@ snd-soc-pisound-objs := pisound.o
- snd-soc-fe-pi-audio-objs := fe-pi-audio.o
-
- obj-$(CONFIG_SND_BCM2708_SOC_ADAU1977_ADC) += snd-soc-adau1977-adc.o
-+obj-$(CONFIG_SND_BCM2708_SOC_GOOGLEVOICEHAT_SOUNDCARD) += snd-soc-googlevoicehat-soundcard.o
-+obj-$(CONFIG_SND_BCM2708_SOC_GOOGLEVOICEHAT_SOUNDCARD) += snd-soc-googlevoicehat-codec.o
- obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP) += snd-soc-hifiberry-amp.o
- obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC) += snd-soc-hifiberry-dac.o
- obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS) += snd-soc-hifiberry-dacplus.o
---- /dev/null
-+++ b/sound/soc/bcm/googlevoicehat-codec.c
-@@ -0,0 +1,199 @@
-+/*
-+ * Driver for the Google voiceHAT audio codec for Raspberry Pi.
-+ *
-+ * Author: Peter Malkin <petermalkin@google.com>
-+ * Copyright 2016
-+ *
-+ * This program is free software; you can redistribute it and/or
-+ * modify it under the terms of the GNU General Public License
-+ * version 2 as published by the Free Software Foundation.
-+ *
-+ * This program is distributed in the hope that it will be useful, but
-+ * WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-+ * General Public License for more details.
-+ */
-+
-+#include <linux/device.h>
-+#include <linux/err.h>
-+#include <linux/gpio.h>
-+#include <linux/gpio/consumer.h>
-+#include <linux/init.h>
-+#include <linux/kernel.h>
-+#include <linux/mod_devicetable.h>
-+#include <linux/module.h>
-+#include <linux/of.h>
-+#include <linux/platform_device.h>
-+#include <linux/version.h>
-+#include <sound/pcm.h>
-+#include <sound/soc.h>
-+#include <sound/soc-dai.h>
-+#include <sound/soc-dapm.h>
-+
-+#define ICS43432_RATE_MIN_HZ 7190 /* from data sheet */
-+#define ICS43432_RATE_MAX_HZ 52800 /* from data sheet */
-+#define SDMODE_DELAY_MS \
-+ 5 /* Delay in enabling SDMODE after clock settles to remove pop */
-+
-+struct voicehat_priv {
-+ struct delayed_work enable_sdmode_work;
-+ struct gpio_desc *sdmode_gpio;
-+ unsigned int sdmode_delay;
-+};
-+
-+static void voicehat_enable_sdmode_work(struct work_struct *work) {
-+ struct voicehat_priv *voicehat =
-+ container_of(work, struct voicehat_priv, enable_sdmode_work.work);
-+ gpiod_set_value(voicehat->sdmode_gpio, 1);
-+}
-+
-+static int voicehat_codec_probe(struct snd_soc_codec *codec) {
-+ struct voicehat_priv *voicehat = snd_soc_codec_get_drvdata(codec);
-+
-+ voicehat->sdmode_gpio = devm_gpiod_get(codec->dev, "sdmode", GPIOD_OUT_LOW);
-+ if (IS_ERR(voicehat->sdmode_gpio)) {
-+ dev_err(codec->dev, "Unable to allocate GPIO pin\n");
-+ return PTR_ERR(voicehat->sdmode_gpio);
-+ }
-+
-+ INIT_DELAYED_WORK(&voicehat->enable_sdmode_work, voicehat_enable_sdmode_work);
-+ return 0;
-+}
-+
-+static int voicehat_codec_remove(struct snd_soc_codec *codec) {
-+ struct voicehat_priv *voicehat = snd_soc_codec_get_drvdata(codec);
-+
-+ cancel_delayed_work_sync(&voicehat->enable_sdmode_work);
-+
-+ return 0;
-+}
-+
-+static const struct snd_soc_dapm_widget voicehat_dapm_widgets[] = {
-+ SND_SOC_DAPM_OUTPUT("Speaker"),
-+};
-+
-+static const struct snd_soc_dapm_route voicehat_dapm_routes[] = {
-+ {"Speaker", NULL, "HiFi Playback"},
-+};
-+
-+static struct snd_soc_codec_driver voicehat_codec_driver = {
-+ .probe = voicehat_codec_probe,
-+ .remove = voicehat_codec_remove,
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 9, 0)
-+ .component_driver = {
-+#endif
-+ .dapm_widgets = voicehat_dapm_widgets,
-+ .num_dapm_widgets = ARRAY_SIZE(voicehat_dapm_widgets),
-+ .dapm_routes = voicehat_dapm_routes,
-+ .num_dapm_routes = ARRAY_SIZE(voicehat_dapm_routes),
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 9, 0)
-+ },
-+#endif
-+};
-+
-+static int voicehat_daiops_trigger(struct snd_pcm_substream *substream, int cmd,
-+ struct snd_soc_dai *dai) {
-+ struct snd_soc_codec *codec = dai->codec;
-+ struct voicehat_priv *voicehat = snd_soc_codec_get_drvdata(codec);
-+
-+ if (voicehat->sdmode_delay == 0) return 0;
-+
-+ dev_dbg(dai->dev, "CMD %d", cmd);
-+ dev_dbg(dai->dev, "Playback Active %d", dai->playback_active);
-+ dev_dbg(dai->dev, "Capture Active %d", dai->capture_active);
-+
-+ switch (cmd) {
-+ case SNDRV_PCM_TRIGGER_START:
-+ case SNDRV_PCM_TRIGGER_RESUME:
-+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
-+ if (dai->playback_active) {
-+ dev_info(dai->dev, "Enabling audio amp...\n");
-+ queue_delayed_work(system_power_efficient_wq,
-+ &voicehat->enable_sdmode_work,
-+ msecs_to_jiffies(voicehat->sdmode_delay));
-+ }
-+ break;
-+ case SNDRV_PCM_TRIGGER_STOP:
-+ case SNDRV_PCM_TRIGGER_SUSPEND:
-+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
-+ if (dai->playback_active) {
-+ cancel_delayed_work(&voicehat->enable_sdmode_work);
-+ dev_info(dai->dev, "Disabling audio amp...\n");
-+ gpiod_set_value(voicehat->sdmode_gpio, 0);
-+ }
-+ break;
-+ }
-+ return 0;
-+}
-+
-+static const struct snd_soc_dai_ops voicehat_dai_ops = {
-+ .trigger = voicehat_daiops_trigger,
-+};
-+
-+static struct snd_soc_dai_driver voicehat_dai = {
-+ .name = "voicehat-hifi",
-+ .capture = {.stream_name = "HiFi Capture",
-+ .channels_min = 2,
-+ .channels_max = 2,
-+ .rates = SNDRV_PCM_RATE_48000,
-+ .formats = SNDRV_PCM_FMTBIT_S32_LE},
-+ .playback = {.stream_name = "HiFi Playback",
-+ .channels_min = 2,
-+ .channels_max = 2,
-+ .rates = SNDRV_PCM_RATE_48000,
-+ .formats = SNDRV_PCM_FMTBIT_S32_LE},
-+ .ops = &voicehat_dai_ops,
-+ .symmetric_rates = 1};
-+
-+#ifdef CONFIG_OF
-+static const struct of_device_id voicehat_ids[] = {
-+ {
-+ .compatible = "google,voicehat",
-+ },
-+ {}};
-+MODULE_DEVICE_TABLE(of, voicehat_ids);
-+#endif
-+
-+static int voicehat_platform_probe(struct platform_device *pdev) {
-+ struct voicehat_priv *voicehat;
-+ int ret;
-+
-+ voicehat = devm_kzalloc(&pdev->dev, sizeof(*voicehat), GFP_KERNEL);
-+ if (!voicehat) return -ENOMEM;
-+
-+ ret = device_property_read_u32(&pdev->dev, "voicehat_sdmode_delay",
-+ &voicehat->sdmode_delay);
-+
-+ if (ret) {
-+ voicehat->sdmode_delay = SDMODE_DELAY_MS;
-+ dev_info(&pdev->dev,
-+ "property 'voicehat_sdmode_delay' not found default 5 mS");
-+ } else {
-+ dev_info(&pdev->dev, "property 'voicehat_sdmode_delay' found delay= %d mS",
-+ voicehat->sdmode_delay);
-+ }
-+
-+ dev_set_drvdata(&pdev->dev, voicehat);
-+
-+ return snd_soc_register_codec(&pdev->dev, &voicehat_codec_driver, &voicehat_dai, 1);
-+}
-+
-+static int voicehat_platform_remove(struct platform_device *pdev) {
-+ snd_soc_unregister_codec(&pdev->dev);
-+ return 0;
-+}
-+
-+static struct platform_driver voicehat_driver = {
-+ .driver =
-+ {
-+ .name = "voicehat-codec", .of_match_table = of_match_ptr(voicehat_ids),
-+ },
-+ .probe = voicehat_platform_probe,
-+ .remove = voicehat_platform_remove,
-+};
-+
-+module_platform_driver(voicehat_driver);
-+
-+MODULE_DESCRIPTION("Google voiceHAT Codec driver");
-+MODULE_AUTHOR("Peter Malkin <petermalkin@google.com>");
-+MODULE_LICENSE("GPL v2");
---- /dev/null
-+++ b/sound/soc/bcm/googlevoicehat-soundcard.c
-@@ -0,0 +1,124 @@
-+/*
-+ * ASoC Driver for Google voiceHAT SoundCard
-+ *
-+ * Author: Peter Malkin <petermalkin@google.com>
-+ * Copyright 2016
-+ *
-+ * This program is free software; you can redistribute it and/or
-+ * modify it under the terms of the GNU General Public License
-+ * version 2 as published by the Free Software Foundation.
-+ *
-+ * This program is distributed in the hope that it will be useful, but
-+ * WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-+ * General Public License for more details.
-+ */
-+
-+#include <linux/module.h>
-+#include <linux/platform_device.h>
-+
-+#include <sound/core.h>
-+#include <sound/pcm.h>
-+#include <sound/pcm_params.h>
-+#include <sound/soc.h>
-+#include <sound/jack.h>
-+
-+static int snd_rpi_googlevoicehat_soundcard_init(struct snd_soc_pcm_runtime *rtd)
-+{
-+ return 0;
-+}
-+
-+static int snd_rpi_googlevoicehat_soundcard_hw_params(
-+ struct snd_pcm_substream *substream,
-+ struct snd_pcm_hw_params *params)
-+{
-+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
-+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
-+
-+ unsigned int sample_bits =
-+ snd_pcm_format_physical_width(params_format(params));
-+
-+ return snd_soc_dai_set_bclk_ratio(cpu_dai, sample_bits * 2);
-+}
-+
-+/* machine stream operations */
-+static struct snd_soc_ops snd_rpi_googlevoicehat_soundcard_ops = {
-+ .hw_params = snd_rpi_googlevoicehat_soundcard_hw_params,
-+};
-+
-+static struct snd_soc_dai_link snd_rpi_googlevoicehat_soundcard_dai[] = {
-+{
-+ .name = "Google voiceHAT SoundCard",
-+ .stream_name = "Google voiceHAT SoundCard HiFi",
-+ .cpu_dai_name = "bcm2708-i2s.0",
-+ .codec_dai_name = "voicehat-hifi",
-+ .platform_name = "bcm2708-i2s.0",
-+ .codec_name = "voicehat-codec",
-+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
-+ SND_SOC_DAIFMT_CBS_CFS,
-+ .ops = &snd_rpi_googlevoicehat_soundcard_ops,
-+ .init = snd_rpi_googlevoicehat_soundcard_init,
-+},
-+};
-+
-+/* audio machine driver */
-+static struct snd_soc_card snd_rpi_googlevoicehat_soundcard = {
-+ .name = "snd_rpi_googlevoicehat_soundcard",
-+ .owner = THIS_MODULE,
-+ .dai_link = snd_rpi_googlevoicehat_soundcard_dai,
-+ .num_links = ARRAY_SIZE(snd_rpi_googlevoicehat_soundcard_dai),
-+};
-+
-+static int snd_rpi_googlevoicehat_soundcard_probe(struct platform_device *pdev)
-+{
-+ int ret = 0;
-+
-+ snd_rpi_googlevoicehat_soundcard.dev = &pdev->dev;
-+
-+ if (pdev->dev.of_node) {
-+ struct device_node *i2s_node;
-+ struct snd_soc_dai_link *dai = &snd_rpi_googlevoicehat_soundcard_dai[0];
-+ i2s_node = of_parse_phandle(pdev->dev.of_node,
-+ "i2s-controller", 0);
-+
-+ if (i2s_node) {
-+ dai->cpu_dai_name = NULL;
-+ dai->cpu_of_node = i2s_node;
-+ dai->platform_name = NULL;
-+ dai->platform_of_node = i2s_node;
-+ }
-+ }
-+
-+ ret = snd_soc_register_card(&snd_rpi_googlevoicehat_soundcard);
-+ if (ret)
-+ dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ret);
-+
-+ return ret;
-+}
-+
-+static int snd_rpi_googlevoicehat_soundcard_remove(struct platform_device *pdev)
-+{
-+ return snd_soc_unregister_card(&snd_rpi_googlevoicehat_soundcard);
-+}
-+
-+static const struct of_device_id snd_rpi_googlevoicehat_soundcard_of_match[] = {
-+ { .compatible = "googlevoicehat,googlevoicehat-soundcard", },
-+ {},
-+};
-+MODULE_DEVICE_TABLE(of, snd_rpi_googlevoicehat_soundcard_of_match);
-+
-+static struct platform_driver snd_rpi_googlevoicehat_soundcard_driver = {
-+ .driver = {
-+ .name = "snd-googlevoicehat-soundcard",
-+ .owner = THIS_MODULE,
-+ .of_match_table = snd_rpi_googlevoicehat_soundcard_of_match,
-+ },
-+ .probe = snd_rpi_googlevoicehat_soundcard_probe,
-+ .remove = snd_rpi_googlevoicehat_soundcard_remove,
-+};
-+
-+module_platform_driver(snd_rpi_googlevoicehat_soundcard_driver);
-+
-+MODULE_AUTHOR("Peter Malkin <petermalkin@google.com>");
-+MODULE_DESCRIPTION("ASoC Driver for Google voiceHAT SoundCard");
-+MODULE_LICENSE("GPL v2");
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-12 20:05:19 +0000