diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0621-Add-support-for-the-AudioInjector.net-Isolated-sound.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0621-Add-support-for-the-AudioInjector.net-Isolated-sound.patch | 323 |
1 files changed, 323 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0621-Add-support-for-the-AudioInjector.net-Isolated-sound.patch b/target/linux/bcm27xx/patches-5.4/950-0621-Add-support-for-the-AudioInjector.net-Isolated-sound.patch new file mode 100644 index 0000000000..e35806962e --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0621-Add-support-for-the-AudioInjector.net-Isolated-sound.patch @@ -0,0 +1,323 @@ +From 5b37b08ff1c29e7386eb8a29b168e94e33cf82c3 Mon Sep 17 00:00:00 2001 +From: Matt Flax <flatmax@flatmax.org> +Date: Wed, 8 Apr 2020 20:00:30 +1000 +Subject: [PATCH] Add support for the AudioInjector.net Isolated sound + card + +This patch adds support for the Audio Injector Isolated sound card. + +Signed-off-by: Matt Flax <flatmax@flatmax.org> +--- + arch/arm/boot/dts/overlays/Makefile | 1 + + arch/arm/boot/dts/overlays/README | 6 + + ...dioinjector-isolated-soundcard-overlay.dts | 55 ++++++ + sound/soc/bcm/Kconfig | 7 + + sound/soc/bcm/Makefile | 2 + + .../bcm/audioinjector-isolated-soundcard.c | 183 ++++++++++++++++++ + 11 files changed, 259 insertions(+), 5 deletions(-) + create mode 100644 arch/arm/boot/dts/overlays/audioinjector-isolated-soundcard-overlay.dts + create mode 100644 sound/soc/bcm/audioinjector-isolated-soundcard.c + +--- a/arch/arm/boot/dts/overlays/Makefile ++++ b/arch/arm/boot/dts/overlays/Makefile +@@ -22,6 +22,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \ + applepi-dac.dtbo \ + at86rf233.dtbo \ + audioinjector-addons.dtbo \ ++ audioinjector-isolated-soundcard.dtbo \ + audioinjector-ultra.dtbo \ + audioinjector-wm8731-audio.dtbo \ + audiosense-pi.dtbo \ +--- a/arch/arm/boot/dts/overlays/README ++++ b/arch/arm/boot/dts/overlays/README +@@ -505,6 +505,12 @@ Params: non-stop-clocks Keeps th + is paused or stopped (default off) + + ++Name: audioinjector-isolated-soundcard ++Info: Configures the audioinjector.net isolated soundcard ++Load: dtoverlay=audioinjector-isolated-soundcard ++Params: <None> ++ ++ + Name: audioinjector-ultra + Info: Configures the audioinjector.net ultra soundcard + Load: dtoverlay=audioinjector-ultra +--- /dev/null ++++ b/arch/arm/boot/dts/overlays/audioinjector-isolated-soundcard-overlay.dts +@@ -0,0 +1,55 @@ ++// Definitions for audioinjector.net audio isolated soundcard ++/dts-v1/; ++/plugin/; ++ ++/ { ++ compatible = "brcm,bcm2835"; ++ ++ fragment@0 { ++ target = <&i2s>; ++ __overlay__ { ++ status = "okay"; ++ }; ++ }; ++ ++ fragment@1 { ++ target-path = "/"; ++ __overlay__ { ++ cs4272_mclk: codec-mclk { ++ compatible = "fixed-clock"; ++ #clock-cells = <0>; ++ clock-frequency = <24576000>; ++ }; ++ }; ++ }; ++ ++ fragment@2 { ++ target = <&i2c1>; ++ __overlay__ { ++ #address-cells = <1>; ++ #size-cells = <0>; ++ status = "okay"; ++ ++ cs4272: cs4271@10 { ++ #sound-dai-cells = <0>; ++ compatible = "cirrus,cs4271"; ++ reg = <0x10>; ++ reset-gpio = <&gpio 5 0>; ++ clocks = <&cs4272_mclk>; ++ clock-names = "mclk"; ++ status = "okay"; ++ }; ++ }; ++ }; ++ ++ fragment@3 { ++ target = <&sound>; ++ snd: __overlay__ { ++ compatible = "ai,audioinjector-isolated-soundcard"; ++ mute-gpios = <&gpio 17 0>; ++ i2s-controller = <&i2s>; ++ codec = <&cs4272>; ++ status = "okay"; ++ }; ++ }; ++}; +--- a/sound/soc/bcm/Kconfig ++++ b/sound/soc/bcm/Kconfig +@@ -192,6 +192,13 @@ config SND_AUDIOINJECTOR_OCTO_SOUNDCARD + help + Say Y or M if you want to add support for audioinjector.net octo add on + ++config SND_AUDIOINJECTOR_ISOLATED_SOUNDCARD ++ tristate "Support for audioinjector.net isolated DAC and ADC soundcard" ++ depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S ++ select SND_SOC_CS4271_I2C ++ help ++ Say Y or M if you want to add support for audioinjector.net isolated soundcard ++ + config SND_AUDIOSENSE_PI + tristate "Support for AudioSense Add-On Soundcard" + depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S +--- a/sound/soc/bcm/Makefile ++++ b/sound/soc/bcm/Makefile +@@ -27,6 +27,7 @@ snd-soc-iqaudio-dac-objs := iqaudio-dac. + snd-soc-i-sabre-q2m-objs := i-sabre-q2m.o + snd-soc-audioinjector-pi-soundcard-objs := audioinjector-pi-soundcard.o + snd-soc-audioinjector-octo-soundcard-objs := audioinjector-octo-soundcard.o ++snd-soc-audioinjector-isolated-soundcard-objs := audioinjector-isolated-soundcard.o + snd-soc-audiosense-pi-objs := audiosense-pi.o + snd-soc-digidac1-soundcard-objs := digidac1-soundcard.o + snd-soc-dionaudio-loco-objs := dionaudio_loco.o +@@ -55,6 +56,7 @@ obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC + obj-$(CONFIG_SND_BCM2708_SOC_I_SABRE_Q2M) += snd-soc-i-sabre-q2m.o + obj-$(CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD) += snd-soc-audioinjector-pi-soundcard.o + obj-$(CONFIG_SND_AUDIOINJECTOR_OCTO_SOUNDCARD) += snd-soc-audioinjector-octo-soundcard.o ++obj-$(CONFIG_SND_AUDIOINJECTOR_ISOLATED_SOUNDCARD) += snd-soc-audioinjector-isolated-soundcard.o + obj-$(CONFIG_SND_AUDIOSENSE_PI) += snd-soc-audiosense-pi.o + obj-$(CONFIG_SND_DIGIDAC1_SOUNDCARD) += snd-soc-digidac1-soundcard.o + obj-$(CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO) += snd-soc-dionaudio-loco.o +--- /dev/null ++++ b/sound/soc/bcm/audioinjector-isolated-soundcard.c +@@ -0,0 +1,183 @@ ++/* ++ * ASoC Driver for AudioInjector.net isolated soundcard ++ * ++ * Created on: 20-February-2020 ++ * Author: flatmax@flatmax.org ++ * based on audioinjector-octo-soundcard.c ++ * ++ * Copyright (C) 2020 Flatmax Pty. Ltd. ++ * ++ * 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/types.h> ++#include <linux/gpio/consumer.h> ++ ++#include <sound/core.h> ++#include <sound/soc.h> ++#include <sound/pcm_params.h> ++#include <sound/control.h> ++ ++static struct gpio_desc *mute_gpio; ++ ++static const unsigned int audioinjector_isolated_rates[] = { ++ 192000, 96000, 48000, 32000, 24000, 16000, 8000 ++}; ++ ++static struct snd_pcm_hw_constraint_list audioinjector_isolated_constraints = { ++ .list = audioinjector_isolated_rates, ++ .count = ARRAY_SIZE(audioinjector_isolated_rates), ++}; ++ ++static int audioinjector_isolated_dai_init(struct snd_soc_pcm_runtime *rtd) ++{ ++ int ret=snd_soc_dai_set_sysclk(rtd->codec_dai, 0, 24576000, 0); ++ if (ret) ++ return ret; ++ ++ return snd_soc_dai_set_bclk_ratio(rtd->cpu_dai, 64); ++} ++ ++static int audioinjector_isolated_startup(struct snd_pcm_substream *substream) ++{ ++ snd_pcm_hw_constraint_list(substream->runtime, 0, ++ SNDRV_PCM_HW_PARAM_RATE, &audioinjector_isolated_constraints); ++ ++ return 0; ++} ++ ++static int audioinjector_isolated_trigger(struct snd_pcm_substream *substream, ++ int cmd){ ++ ++ switch (cmd) { ++ case SNDRV_PCM_TRIGGER_STOP: ++ case SNDRV_PCM_TRIGGER_SUSPEND: ++ case SNDRV_PCM_TRIGGER_PAUSE_PUSH: ++ gpiod_set_value(mute_gpio, 0); ++ break; ++ case SNDRV_PCM_TRIGGER_START: ++ case SNDRV_PCM_TRIGGER_RESUME: ++ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: ++ gpiod_set_value(mute_gpio, 1); ++ break; ++ default: ++ return -EINVAL; ++ } ++ return 0; ++} ++ ++static struct snd_soc_ops audioinjector_isolated_ops = { ++ .startup = audioinjector_isolated_startup, ++ .trigger = audioinjector_isolated_trigger, ++}; ++ ++SND_SOC_DAILINK_DEFS(audioinjector_isolated, ++ DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")), ++ DAILINK_COMP_ARRAY(COMP_CODEC("cs4271.1-0010", "cs4271-hifi")), ++ DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0"))); ++ ++static struct snd_soc_dai_link audioinjector_isolated_dai[] = { ++ { ++ .name = "AudioInjector ISO", ++ .stream_name = "AI-HIFI", ++ .ops = &audioinjector_isolated_ops, ++ .init = audioinjector_isolated_dai_init, ++ .symmetric_rates = 1, ++ .symmetric_channels = 1, ++ .dai_fmt = SND_SOC_DAIFMT_CBM_CFM|SND_SOC_DAIFMT_I2S|SND_SOC_DAIFMT_NB_NF, ++ SND_SOC_DAILINK_REG(audioinjector_isolated), ++ } ++}; ++ ++static const struct snd_soc_dapm_widget audioinjector_isolated_widgets[] = { ++ SND_SOC_DAPM_OUTPUT("OUTPUTS"), ++ SND_SOC_DAPM_INPUT("INPUTS"), ++}; ++ ++static const struct snd_soc_dapm_route audioinjector_isolated_route[] = { ++ /* Balanced outputs */ ++ {"OUTPUTS", NULL, "AOUTA+"}, ++ {"OUTPUTS", NULL, "AOUTA-"}, ++ {"OUTPUTS", NULL, "AOUTB+"}, ++ {"OUTPUTS", NULL, "AOUTB-"}, ++ ++ /* Balanced inputs */ ++ {"AINA", NULL, "INPUTS"}, ++ {"AINB", NULL, "INPUTS"}, ++}; ++ ++static struct snd_soc_card snd_soc_audioinjector_isolated = { ++ .name = "audioinjector-isolated-soundcard", ++ .dai_link = audioinjector_isolated_dai, ++ .num_links = ARRAY_SIZE(audioinjector_isolated_dai), ++ ++ .dapm_widgets = audioinjector_isolated_widgets, ++ .num_dapm_widgets = ARRAY_SIZE(audioinjector_isolated_widgets), ++ .dapm_routes = audioinjector_isolated_route, ++ .num_dapm_routes = ARRAY_SIZE(audioinjector_isolated_route), ++}; ++ ++static int audioinjector_isolated_probe(struct platform_device *pdev) ++{ ++ struct snd_soc_card *card = &snd_soc_audioinjector_isolated; ++ int ret; ++ ++ card->dev = &pdev->dev; ++ ++ if (pdev->dev.of_node) { ++ struct snd_soc_dai_link *dai = &audioinjector_isolated_dai[0]; ++ struct device_node *i2s_node = ++ of_parse_phandle(pdev->dev.of_node, "i2s-controller", 0); ++ ++ if (i2s_node) { ++ dai->cpus->dai_name = NULL; ++ dai->cpus->of_node = i2s_node; ++ dai->platforms->name = NULL; ++ dai->platforms->of_node = i2s_node; ++ } else { ++ dev_err(&pdev->dev, ++ "i2s-controller missing or invalid in DT\n"); ++ return -EINVAL; ++ } ++ ++ mute_gpio = devm_gpiod_get_optional(&pdev->dev, "mute", GPIOD_OUT_LOW); ++ if (IS_ERR(mute_gpio)){ ++ dev_err(&pdev->dev, "mute gpio not found in dt overlay\n"); ++ return PTR_ERR(mute_gpio); ++ } ++ } ++ ++ ret = devm_snd_soc_register_card(&pdev->dev, card); ++ if (ret && ret != -EPROBE_DEFER) ++ dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret); ++ return ret; ++} ++ ++static const struct of_device_id audioinjector_isolated_of_match[] = { ++ { .compatible = "ai,audioinjector-isolated-soundcard", }, ++ {}, ++}; ++MODULE_DEVICE_TABLE(of, audioinjector_isolated_of_match); ++ ++static struct platform_driver audioinjector_isolated_driver = { ++ .driver = { ++ .name = "audioinjector-isolated", ++ .owner = THIS_MODULE, ++ .of_match_table = audioinjector_isolated_of_match, ++ }, ++ .probe = audioinjector_isolated_probe, ++}; ++ ++module_platform_driver(audioinjector_isolated_driver); ++MODULE_AUTHOR("Matt Flax <flatmax@flatmax.org>"); ++MODULE_DESCRIPTION("AudioInjector.net isolated Soundcard"); ++MODULE_LICENSE("GPL v2"); ++MODULE_ALIAS("platform:audioinjector-isolated-soundcard"); |