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Diffstat (limited to 'target/linux/brcm2708/patches-4.9/950-0080-Add-IQAudIO-Digi-WM8804-board-support.patch')
-rw-r--r--target/linux/brcm2708/patches-4.9/950-0080-Add-IQAudIO-Digi-WM8804-board-support.patch295
1 files changed, 0 insertions, 295 deletions
diff --git a/target/linux/brcm2708/patches-4.9/950-0080-Add-IQAudIO-Digi-WM8804-board-support.patch b/target/linux/brcm2708/patches-4.9/950-0080-Add-IQAudIO-Digi-WM8804-board-support.patch
deleted file mode 100644
index f6a23f91f4..0000000000
--- a/target/linux/brcm2708/patches-4.9/950-0080-Add-IQAudIO-Digi-WM8804-board-support.patch
+++ /dev/null
@@ -1,295 +0,0 @@
-From 5d70e6012f390d6292ea8017cebb947a003fce00 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>
----
- sound/soc/bcm/Kconfig | 7 ++
- sound/soc/bcm/Makefile | 2 +
- sound/soc/bcm/iqaudio_digi.c | 239 +++++++++++++++++++++++++++++++++++++++++++
- 3 files changed, 248 insertions(+)
- create mode 100644 sound/soc/bcm/iqaudio_digi.c
-
---- a/sound/soc/bcm/Kconfig
-+++ b/sound/soc/bcm/Kconfig
-@@ -80,6 +80,13 @@ 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
-@@ -19,6 +19,7 @@ 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
-
-@@ -32,6 +33,7 @@ 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
-
---- /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");
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-15 01:55:11 +0000