mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-25 00:11:13 +00:00
2b1c6b21b5
As usual these patches were extracted and rebased from the raspberry pi repo: https://github.com/raspberrypi/linux/tree/rpi-4.4.y Also adds support for Raspberry Pi Compute Module 3 (untested). Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
400 lines
12 KiB
Diff
400 lines
12 KiB
Diff
From a5bf4ef8a41a52453b9505ffef39b7635feef4b2 Mon Sep 17 00:00:00 2001
|
|
From: DigitalDreamtime <clive.messer@digitaldreamtime.co.uk>
|
|
Date: Thu, 30 Jun 2016 18:38:42 +0100
|
|
Subject: [PATCH] Add IQAudIO Digi WM8804 board support
|
|
|
|
Support IQAudIO Digi board with iqaudio_digi machine driver and
|
|
iqaudio-digi-wm8804-audio overlay.
|
|
|
|
NB. Machine driver is a cut and paste of hifiberry_digi code, with format
|
|
and general cleanup to comply with kernel coding standards.
|
|
|
|
Signed-off-by: DigitalDreamtime <clive.messer@digitaldreamtime.co.uk>
|
|
---
|
|
arch/arm/boot/dts/overlays/Makefile | 1 +
|
|
arch/arm/boot/dts/overlays/README | 9 +
|
|
.../overlays/iqaudio-digi-wm8804-audio-overlay.dts | 47 ++++
|
|
arch/arm/configs/bcm2709_defconfig | 1 +
|
|
arch/arm/configs/bcmrpi_defconfig | 1 +
|
|
sound/soc/bcm/Kconfig | 7 +
|
|
sound/soc/bcm/Makefile | 2 +
|
|
sound/soc/bcm/iqaudio_digi.c | 239 +++++++++++++++++++++
|
|
8 files changed, 307 insertions(+)
|
|
create mode 100644 arch/arm/boot/dts/overlays/iqaudio-digi-wm8804-audio-overlay.dts
|
|
create mode 100644 sound/soc/bcm/iqaudio_digi.c
|
|
|
|
--- a/arch/arm/boot/dts/overlays/Makefile
|
|
+++ b/arch/arm/boot/dts/overlays/Makefile
|
|
@@ -42,6 +42,7 @@ dtbo-$(RPI_DT_OVERLAYS) += i2s-gpio28-31
|
|
dtbo-$(RPI_DT_OVERLAYS) += i2s-mmap.dtbo
|
|
dtbo-$(RPI_DT_OVERLAYS) += iqaudio-dac.dtbo
|
|
dtbo-$(RPI_DT_OVERLAYS) += iqaudio-dacplus.dtbo
|
|
+dtbo-$(RPI_DT_OVERLAYS) += iqaudio-digi-wm8804-audio.dtbo
|
|
dtbo-$(RPI_DT_OVERLAYS) += justboom-dac.dtbo
|
|
dtbo-$(RPI_DT_OVERLAYS) += justboom-digi.dtbo
|
|
dtbo-$(RPI_DT_OVERLAYS) += lirc-rpi.dtbo
|
|
--- a/arch/arm/boot/dts/overlays/README
|
|
+++ b/arch/arm/boot/dts/overlays/README
|
|
@@ -546,6 +546,15 @@ Params: 24db_digital_gain Allow ga
|
|
the DAC driver module loads.
|
|
|
|
|
|
+Name: iqaudio-digi-wm8804-audio
|
|
+Info: Configures the IQAudIO Digi WM8804 audio card
|
|
+Load: dtoverlay=iqaudio-digi-wm8804-audio,<param>=<val>
|
|
+Params: card_name Override the default, "IQAudIODigi", card name.
|
|
+ dai_name Override the default, "IQAudIO Digi", dai name.
|
|
+ dai_stream_name Override the default, "IQAudIO Digi HiFi",
|
|
+ dai stream name.
|
|
+
|
|
+
|
|
Name: justboom-dac
|
|
Info: Configures the JustBoom DAC HAT, Amp HAT, DAC Zero and Amp Zero audio
|
|
cards
|
|
--- /dev/null
|
|
+++ b/arch/arm/boot/dts/overlays/iqaudio-digi-wm8804-audio-overlay.dts
|
|
@@ -0,0 +1,47 @@
|
|
+// Definitions for IQAudIO Digi WM8804 audio board
|
|
+/dts-v1/;
|
|
+/plugin/;
|
|
+
|
|
+/ {
|
|
+ compatible = "brcm,bcm2708";
|
|
+
|
|
+ fragment@0 {
|
|
+ target = <&i2s>;
|
|
+ __overlay__ {
|
|
+ status = "okay";
|
|
+ };
|
|
+ };
|
|
+
|
|
+ fragment@1 {
|
|
+ target = <&i2c1>;
|
|
+ __overlay__ {
|
|
+ #address-cells = <1>;
|
|
+ #size-cells = <0>;
|
|
+ status = "okay";
|
|
+
|
|
+ wm8804@3b {
|
|
+ #sound-dai-cells = <0>;
|
|
+ compatible = "wlf,wm8804";
|
|
+ reg = <0x3b>;
|
|
+ status = "okay";
|
|
+ // DVDD-supply = <®_3v3>;
|
|
+ // PVDD-supply = <®_3v3>;
|
|
+ };
|
|
+ };
|
|
+ };
|
|
+
|
|
+ fragment@2 {
|
|
+ target = <&sound>;
|
|
+ wm8804_digi: __overlay__ {
|
|
+ compatible = "iqaudio,wm8804-digi";
|
|
+ i2s-controller = <&i2s>;
|
|
+ status = "okay";
|
|
+ };
|
|
+ };
|
|
+
|
|
+ __overrides__ {
|
|
+ card_name = <&wm8804_digi>,"wm8804-digi,card-name";
|
|
+ dai_name = <&wm8804_digi>,"wm8804-digi,dai-name";
|
|
+ dai_stream_name = <&wm8804_digi>,"wm8804-digi,dai-stream-name";
|
|
+ };
|
|
+};
|
|
--- a/arch/arm/configs/bcm2709_defconfig
|
|
+++ b/arch/arm/configs/bcm2709_defconfig
|
|
@@ -865,6 +865,7 @@ CONFIG_SND_BCM2708_SOC_RPI_PROTO=m
|
|
CONFIG_SND_BCM2708_SOC_JUSTBOOM_DAC=m
|
|
CONFIG_SND_BCM2708_SOC_JUSTBOOM_DIGI=m
|
|
CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC=m
|
|
+CONFIG_SND_BCM2708_SOC_IQAUDIO_DIGI=m
|
|
CONFIG_SND_BCM2708_SOC_RASPIDAC3=m
|
|
CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD=m
|
|
CONFIG_SND_DIGIDAC1_SOUNDCARD=m
|
|
--- a/arch/arm/configs/bcmrpi_defconfig
|
|
+++ b/arch/arm/configs/bcmrpi_defconfig
|
|
@@ -857,6 +857,7 @@ CONFIG_SND_BCM2708_SOC_RPI_PROTO=m
|
|
CONFIG_SND_BCM2708_SOC_JUSTBOOM_DAC=m
|
|
CONFIG_SND_BCM2708_SOC_JUSTBOOM_DIGI=m
|
|
CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC=m
|
|
+CONFIG_SND_BCM2708_SOC_IQAUDIO_DIGI=m
|
|
CONFIG_SND_BCM2708_SOC_RASPIDAC3=m
|
|
CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD=m
|
|
CONFIG_SND_DIGIDAC1_SOUNDCARD=m
|
|
--- a/sound/soc/bcm/Kconfig
|
|
+++ b/sound/soc/bcm/Kconfig
|
|
@@ -71,6 +71,13 @@ config SND_BCM2708_SOC_IQAUDIO_DAC
|
|
help
|
|
Say Y or M if you want to add support for IQaudIO-DAC.
|
|
|
|
+config SND_BCM2708_SOC_IQAUDIO_DIGI
|
|
+ tristate "Support for IQAudIO Digi"
|
|
+ depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
|
|
+ select SND_SOC_WM8804
|
|
+ help
|
|
+ Say Y or M if you want to add support for IQAudIO Digital IO board.
|
|
+
|
|
config SND_BCM2708_SOC_RASPIDAC3
|
|
tristate "Support for RaspiDAC Rev.3x"
|
|
depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
|
|
--- a/sound/soc/bcm/Makefile
|
|
+++ b/sound/soc/bcm/Makefile
|
|
@@ -14,6 +14,7 @@ snd-soc-justboom-digi-objs := justboom-d
|
|
snd-soc-rpi-dac-objs := rpi-dac.o
|
|
snd-soc-rpi-proto-objs := rpi-proto.o
|
|
snd-soc-iqaudio-dac-objs := iqaudio-dac.o
|
|
+snd-soc-iqaudio-digi-objs := iqaudio_digi.o
|
|
snd-soc-raspidac3-objs := raspidac3.o
|
|
snd-soc-audioinjector-pi-soundcard-objs := audioinjector-pi-soundcard.o
|
|
snd-soc-digidac1-soundcard-objs := digidac1-soundcard.o
|
|
@@ -28,6 +29,7 @@ obj-$(CONFIG_SND_BCM2708_SOC_JUSTBOOM_DI
|
|
obj-$(CONFIG_SND_BCM2708_SOC_RPI_DAC) += snd-soc-rpi-dac.o
|
|
obj-$(CONFIG_SND_BCM2708_SOC_RPI_PROTO) += snd-soc-rpi-proto.o
|
|
obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC) += snd-soc-iqaudio-dac.o
|
|
+obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DIGI) += snd-soc-iqaudio-digi.o
|
|
obj-$(CONFIG_SND_BCM2708_SOC_RASPIDAC3) += snd-soc-raspidac3.o
|
|
obj-$(CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD) += snd-soc-audioinjector-pi-soundcard.o
|
|
obj-$(CONFIG_SND_DIGIDAC1_SOUNDCARD) += snd-soc-digidac1-soundcard.o
|
|
--- /dev/null
|
|
+++ b/sound/soc/bcm/iqaudio_digi.c
|
|
@@ -0,0 +1,239 @@
|
|
+/*
|
|
+ * ASoC Driver for IQAudIO WM8804 Digi
|
|
+ *
|
|
+ * Author: Daniel Matuschek <info@crazy-audio.com>
|
|
+ * based on the HifiBerry DAC driver by Florian Meier <florian.meier@koalo.de>
|
|
+ * Copyright 2013
|
|
+ *
|
|
+ * 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>
|
|
+
|
|
+#include "../codecs/wm8804.h"
|
|
+
|
|
+static short int auto_shutdown_output;
|
|
+module_param(auto_shutdown_output, short,
|
|
+ S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP);
|
|
+MODULE_PARM_DESC(auto_shutdown_output, "Shutdown SP/DIF output if playback is stopped");
|
|
+
|
|
+static int snd_rpi_iqaudio_digi_init(struct snd_soc_pcm_runtime *rtd)
|
|
+{
|
|
+ struct snd_soc_codec *codec = rtd->codec;
|
|
+
|
|
+ /* enable TX output */
|
|
+ snd_soc_update_bits(codec, WM8804_PWRDN, 0x4, 0x0);
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int snd_rpi_iqaudio_digi_startup(struct snd_pcm_substream *substream)
|
|
+{
|
|
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
|
|
+ struct snd_soc_codec *codec = rtd->codec;
|
|
+
|
|
+ /* turn on digital output */
|
|
+ snd_soc_update_bits(codec, WM8804_PWRDN, 0x3c, 0x00);
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static void snd_rpi_iqaudio_digi_shutdown(struct snd_pcm_substream *substream)
|
|
+{
|
|
+ if (auto_shutdown_output) {
|
|
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
|
|
+ struct snd_soc_codec *codec = rtd->codec;
|
|
+
|
|
+ /* turn off digital output */
|
|
+ snd_soc_update_bits(codec, WM8804_PWRDN, 0x3c, 0x3c);
|
|
+ }
|
|
+}
|
|
+
|
|
+
|
|
+static int snd_rpi_iqaudio_digi_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 *codec_dai = rtd->codec_dai;
|
|
+ struct snd_soc_codec *codec = rtd->codec;
|
|
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
|
|
+
|
|
+ int sysclk = 27000000; /* This is fixed on this board */
|
|
+
|
|
+ long mclk_freq = 0;
|
|
+ int mclk_div = 1;
|
|
+ int sampling_freq = 1;
|
|
+
|
|
+ int ret;
|
|
+
|
|
+ int samplerate = params_rate(params);
|
|
+
|
|
+ if (samplerate <= 96000) {
|
|
+ mclk_freq = samplerate * 256;
|
|
+ mclk_div = WM8804_MCLKDIV_256FS;
|
|
+ } else {
|
|
+ mclk_freq = samplerate * 128;
|
|
+ mclk_div = WM8804_MCLKDIV_128FS;
|
|
+ }
|
|
+
|
|
+ switch (samplerate) {
|
|
+ case 32000:
|
|
+ sampling_freq = 0x03;
|
|
+ break;
|
|
+ case 44100:
|
|
+ sampling_freq = 0x00;
|
|
+ break;
|
|
+ case 48000:
|
|
+ sampling_freq = 0x02;
|
|
+ break;
|
|
+ case 88200:
|
|
+ sampling_freq = 0x08;
|
|
+ break;
|
|
+ case 96000:
|
|
+ sampling_freq = 0x0a;
|
|
+ break;
|
|
+ case 176400:
|
|
+ sampling_freq = 0x0c;
|
|
+ break;
|
|
+ case 192000:
|
|
+ sampling_freq = 0x0e;
|
|
+ break;
|
|
+ default:
|
|
+ dev_err(codec->dev, "Failed to set WM8804 SYSCLK, unsupported samplerate %d\n",
|
|
+ samplerate);
|
|
+ }
|
|
+
|
|
+ snd_soc_dai_set_clkdiv(codec_dai, WM8804_MCLK_DIV, mclk_div);
|
|
+ snd_soc_dai_set_pll(codec_dai, 0, 0, sysclk, mclk_freq);
|
|
+
|
|
+ ret = snd_soc_dai_set_sysclk(codec_dai, WM8804_TX_CLKSRC_PLL,
|
|
+ sysclk, SND_SOC_CLOCK_OUT);
|
|
+ if (ret < 0) {
|
|
+ dev_err(codec->dev, "Failed to set WM8804 SYSCLK: %d\n", ret);
|
|
+ return ret;
|
|
+ }
|
|
+
|
|
+ /* Enable TX output */
|
|
+ snd_soc_update_bits(codec, WM8804_PWRDN, 0x4, 0x0);
|
|
+
|
|
+ /* Power on */
|
|
+ snd_soc_update_bits(codec, WM8804_PWRDN, 0x9, 0);
|
|
+
|
|
+ /* set sampling frequency status bits */
|
|
+ snd_soc_update_bits(codec, WM8804_SPDTX4, 0x0f, sampling_freq);
|
|
+
|
|
+ return snd_soc_dai_set_bclk_ratio(cpu_dai, 64);
|
|
+}
|
|
+
|
|
+/* machine stream operations */
|
|
+static struct snd_soc_ops snd_rpi_iqaudio_digi_ops = {
|
|
+ .hw_params = snd_rpi_iqaudio_digi_hw_params,
|
|
+ .startup = snd_rpi_iqaudio_digi_startup,
|
|
+ .shutdown = snd_rpi_iqaudio_digi_shutdown,
|
|
+};
|
|
+
|
|
+static struct snd_soc_dai_link snd_rpi_iqaudio_digi_dai[] = {
|
|
+{
|
|
+ .name = "IQAudIO Digi",
|
|
+ .stream_name = "IQAudIO Digi HiFi",
|
|
+ .cpu_dai_name = "bcm2708-i2s.0",
|
|
+ .codec_dai_name = "wm8804-spdif",
|
|
+ .platform_name = "bcm2708-i2s.0",
|
|
+ .codec_name = "wm8804.1-003b",
|
|
+ .dai_fmt = SND_SOC_DAIFMT_I2S |
|
|
+ SND_SOC_DAIFMT_NB_NF |
|
|
+ SND_SOC_DAIFMT_CBM_CFM,
|
|
+ .ops = &snd_rpi_iqaudio_digi_ops,
|
|
+ .init = snd_rpi_iqaudio_digi_init,
|
|
+},
|
|
+};
|
|
+
|
|
+/* audio machine driver */
|
|
+static struct snd_soc_card snd_rpi_iqaudio_digi = {
|
|
+ .name = "IQAudIODigi",
|
|
+ .owner = THIS_MODULE,
|
|
+ .dai_link = snd_rpi_iqaudio_digi_dai,
|
|
+ .num_links = ARRAY_SIZE(snd_rpi_iqaudio_digi_dai),
|
|
+};
|
|
+
|
|
+static int snd_rpi_iqaudio_digi_probe(struct platform_device *pdev)
|
|
+{
|
|
+ struct snd_soc_card *card = &snd_rpi_iqaudio_digi;
|
|
+ char *prefix = "wm8804-digi,";
|
|
+ char prop[128];
|
|
+ struct device_node *np;
|
|
+ int ret = 0;
|
|
+
|
|
+ snd_rpi_iqaudio_digi.dev = &pdev->dev;
|
|
+
|
|
+ np = pdev->dev.of_node;
|
|
+ if (np) {
|
|
+ struct snd_soc_dai_link *dai = &snd_rpi_iqaudio_digi_dai[0];
|
|
+ struct device_node *i2s_node;
|
|
+
|
|
+ i2s_node = of_parse_phandle(np, "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;
|
|
+ }
|
|
+
|
|
+ snprintf(prop, sizeof(prop), "%scard-name", prefix);
|
|
+ of_property_read_string(np, prop, &card->name);
|
|
+
|
|
+ snprintf(prop, sizeof(prop), "%sdai-name", prefix);
|
|
+ of_property_read_string(np, prop, &dai->name);
|
|
+
|
|
+ snprintf(prop, sizeof(prop), "%sdai-stream-name", prefix);
|
|
+ of_property_read_string(np, prop, &dai->stream_name);
|
|
+ }
|
|
+
|
|
+ ret = snd_soc_register_card(card);
|
|
+ if (ret)
|
|
+ dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
|
|
+ ret);
|
|
+
|
|
+ return ret;
|
|
+}
|
|
+
|
|
+static int snd_rpi_iqaudio_digi_remove(struct platform_device *pdev)
|
|
+{
|
|
+ return snd_soc_unregister_card(&snd_rpi_iqaudio_digi);
|
|
+}
|
|
+
|
|
+static const struct of_device_id snd_rpi_iqaudio_digi_of_match[] = {
|
|
+ { .compatible = "iqaudio,wm8804-digi", },
|
|
+ {},
|
|
+};
|
|
+MODULE_DEVICE_TABLE(of, snd_rpi_iqaudio_digi_of_match);
|
|
+
|
|
+static struct platform_driver snd_rpi_iqaudio_digi_driver = {
|
|
+ .driver = {
|
|
+ .name = "IQAudIODigi",
|
|
+ .owner = THIS_MODULE,
|
|
+ .of_match_table = snd_rpi_iqaudio_digi_of_match,
|
|
+ },
|
|
+ .probe = snd_rpi_iqaudio_digi_probe,
|
|
+ .remove = snd_rpi_iqaudio_digi_remove,
|
|
+};
|
|
+
|
|
+module_platform_driver(snd_rpi_iqaudio_digi_driver);
|
|
+
|
|
+MODULE_AUTHOR("Daniel Matuschek <info@crazy-audio.com>");
|
|
+MODULE_DESCRIPTION("ASoC Driver for IQAudIO WM8804 Digi");
|
|
+MODULE_LICENSE("GPL v2");
|