You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
469 lines
15 KiB
469 lines
15 KiB
![]()
6 years ago
|
From b41def5d536b4389e2648286c03e1354a3cc1523 Mon Sep 17 00:00:00 2001
|
||
|
From: escalator2015 <jmtasende@gmail.com>
|
||
|
Date: Tue, 24 May 2016 16:20:09 +0100
|
||
|
Subject: [PATCH 077/454] New driver for RRA DigiDAC1 soundcard using WM8741 +
|
||
|
WM8804
|
||
|
|
||
|
---
|
||
|
sound/soc/bcm/Kconfig | 8 +
|
||
|
sound/soc/bcm/Makefile | 2 +
|
||
|
sound/soc/bcm/digidac1-soundcard.c | 422 +++++++++++++++++++++++++++++
|
||
|
3 files changed, 432 insertions(+)
|
||
|
create mode 100644 sound/soc/bcm/digidac1-soundcard.c
|
||
|
|
||
|
--- a/sound/soc/bcm/Kconfig
|
||
|
+++ b/sound/soc/bcm/Kconfig
|
||
|
@@ -109,3 +109,11 @@ config SND_AUDIOINJECTOR_PI_SOUNDCARD
|
||
|
select SND_SOC_WM8731
|
||
|
help
|
||
|
Say Y or M if you want to add support for audioinjector.net Pi Hat
|
||
|
+
|
||
|
+config SND_DIGIDAC1_SOUNDCARD
|
||
|
+ tristate "Support for Red Rocks Audio DigiDAC1"
|
||
|
+ depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
|
||
|
+ select SND_SOC_WM8804
|
||
|
+ select SND_SOC_WM8741
|
||
|
+ help
|
||
|
+ Say Y or M if you want to add support for Red Rocks Audio DigiDAC1 board.
|
||
|
--- a/sound/soc/bcm/Makefile
|
||
|
+++ b/sound/soc/bcm/Makefile
|
||
|
@@ -22,6 +22,7 @@ snd-soc-iqaudio-dac-objs := iqaudio-dac.
|
||
|
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
|
||
|
|
||
|
obj-$(CONFIG_SND_BCM2708_SOC_ADAU1977_ADC) += snd-soc-adau1977-adc.o
|
||
|
obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP) += snd-soc-hifiberry-amp.o
|
||
|
@@ -36,4 +37,5 @@ obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC
|
||
|
obj-$(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/digidac1-soundcard.c
|
||
|
@@ -0,0 +1,422 @@
|
||
|
+/*
|
||
|
+ * ASoC Driver for RRA DigiDAC1
|
||
|
+ * Copyright 2016
|
||
|
+ * Author: José M. Tasende <vintage@redrocksaudio.es>
|
||
|
+ * based on the HifiBerry DAC driver by Florian Meier <florian.meier@koalo.de>
|
||
|
+ * and the Wolfson card driver by Nikesh Oswal, <Nikesh.Oswal@wolfsonmicro.com>
|
||
|
+ * 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 <linux/i2c.h>
|
||
|
+#include <sound/core.h>
|
||
|
+#include <sound/pcm.h>
|
||
|
+#include <sound/pcm_params.h>
|
||
|
+#include <sound/soc.h>
|
||
|
+#include <sound/jack.h>
|
||
|
+#include <sound/soc-dapm.h>
|
||
|
+#include <sound/tlv.h>
|
||
|
+#include <linux/regulator/consumer.h>
|
||
|
+
|
||
|
+#include "../codecs/wm8804.h"
|
||
|
+#include "../codecs/wm8741.h"
|
||
|
+
|
||
|
+#define WM8741_NUM_SUPPLIES 2
|
||
|
+
|
||
|
+/* codec private data */
|
||
|
+struct wm8741_priv {
|
||
|
+ struct wm8741_platform_data pdata;
|
||
|
+ struct regmap *regmap;
|
||
|
+ struct regulator_bulk_data supplies[WM8741_NUM_SUPPLIES];
|
||
|
+ unsigned int sysclk;
|
||
|
+ const struct snd_pcm_hw_constraint_list *sysclk_constraints;
|
||
|
+};
|
||
|
+
|
||
|
+static int samplerate = 44100;
|
||
|
+
|
||
|
+/* New Alsa Controls not exposed by original wm8741 codec driver */
|
||
|
+/* in actual driver the att. adjustment is wrong because */
|
||
|
+/* this DAC has a coarse attenuation register with 4dB steps */
|
||
|
+/* and a fine level register with 0.125dB steps */
|
||
|
+/* each register has 32 steps so combining both we have 1024 steps */
|
||
|
+/* of 0.125 dB. */
|
||
|
+/* The original level controls from driver are removed at startup */
|
||
|
+/* and replaced by the corrected ones. */
|
||
|
+/* The same wm8741 driver can be used for wm8741 and wm8742 devices */
|
||
|
+
|
||
|
+static const DECLARE_TLV_DB_SCALE(dac_tlv_fine, 0, 13, 0);
|
||
|
+static const DECLARE_TLV_DB_SCALE(dac_tlv_coarse, -12700, 400, 1);
|
||
|
+static const char *w8741_dither[4] = {"Off", "RPDF", "TPDF", "HPDF"};
|
||
|
+static const char *w8741_filter[5] = {
|
||
|
+ "Type 1", "Type 2", "Type 3", "Type 4", "Type 5"};
|
||
|
+static const char *w8741_switch[2] = {"Off", "On"};
|
||
|
+static const struct soc_enum w8741_enum[] = {
|
||
|
+SOC_ENUM_SINGLE(WM8741_MODE_CONTROL_2, 0, 4, w8741_dither),/* dithering type */
|
||
|
+SOC_ENUM_SINGLE(WM8741_FILTER_CONTROL, 0, 5, w8741_filter),/* filter type */
|
||
|
+SOC_ENUM_SINGLE(WM8741_FORMAT_CONTROL, 6, 2, w8741_switch),/* phase invert */
|
||
|
+SOC_ENUM_SINGLE(WM8741_VOLUME_CONTROL, 0, 2, w8741_switch),/* volume ramp */
|
||
|
+SOC_ENUM_SINGLE(WM8741_VOLUME_CONTROL, 3, 2, w8741_switch),/* soft mute */
|
||
|
+};
|
||
|
+
|
||
|
+static const struct snd_kcontrol_new w8741_snd_controls_stereo[] = {
|
||
|
+SOC_DOUBLE_R_TLV("DAC Fine Playback Volume", WM8741_DACLLSB_ATTENUATION,
|
||
|
+ WM8741_DACRLSB_ATTENUATION, 0, 31, 1, dac_tlv_fine),
|
||
|
+SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8741_DACLMSB_ATTENUATION,
|
||
|
+ WM8741_DACRMSB_ATTENUATION, 0, 31, 1, dac_tlv_coarse),
|
||
|
+SOC_ENUM("DAC Dither", w8741_enum[0]),
|
||
|
+SOC_ENUM("DAC Digital Filter", w8741_enum[1]),
|
||
|
+SOC_ENUM("DAC Phase Invert", w8741_enum[2]),
|
||
|
+SOC_ENUM("DAC Volume Ramp", w8741_enum[3]),
|
||
|
+SOC_ENUM("DAC Soft Mute", w8741_enum[4]),
|
||
|
+};
|
||
|
+
|
||
|
+static const struct snd_kcontrol_new w8741_snd_controls_mono_left[] = {
|
||
|
+SOC_SINGLE_TLV("DAC Fine Playback Volume", WM8741_DACLLSB_ATTENUATION,
|
||
|
+ 0, 31, 0, dac_tlv_fine),
|
||
|
+SOC_SINGLE_TLV("Digital Playback Volume", WM8741_DACLMSB_ATTENUATION,
|
||
|
+ 0, 31, 1, dac_tlv_coarse),
|
||
|
+SOC_ENUM("DAC Dither", w8741_enum[0]),
|
||
|
+SOC_ENUM("DAC Digital Filter", w8741_enum[1]),
|
||
|
+SOC_ENUM("DAC Phase Invert", w8741_enum[2]),
|
||
|
+SOC_ENUM("DAC Volume Ramp", w8741_enum[3]),
|
||
|
+SOC_ENUM("DAC Soft Mute", w8741_enum[4]),
|
||
|
+};
|
||
|
+
|
||
|
+static const struct snd_kcontrol_new w8741_snd_controls_mono_right[] = {
|
||
|
+SOC_SINGLE_TLV("DAC Fine Playback Volume", WM8741_DACRLSB_ATTENUATION,
|
||
|
+ 0, 31, 0, dac_tlv_fine),
|
||
|
+SOC_SINGLE_TLV("Digital Playback Volume", WM8741_DACRMSB_ATTENUATION,
|
||
|
+ 0, 31, 1, dac_tlv_coarse),
|
||
|
+SOC_ENUM("DAC Dither", w8741_enum[0]),
|
||
|
+SOC_ENUM("DAC Digital Filter", w8741_enum[1]),
|
||
|
+SOC_ENUM("DAC Phase Invert", w8741_enum[2]),
|
||
|
+SOC_ENUM("DAC Volume Ramp", w8741_enum[3]),
|
||
|
+SOC_ENUM("DAC Soft Mute", w8741_enum[4]),
|
||
|
+};
|
||
|
+
|
||
|
+static int w8741_add_controls(struct snd_soc_codec *codec)
|
||
|
+{
|
||
|
+ struct wm8741_priv *wm8741 = snd_soc_codec_get_drvdata(codec);
|
||
|
+
|
||
|
+ switch (wm8741->pdata.diff_mode) {
|
||
|
+ case WM8741_DIFF_MODE_STEREO:
|
||
|
+ case WM8741_DIFF_MODE_STEREO_REVERSED:
|
||
|
+ snd_soc_add_codec_controls(codec,
|
||
|
+ w8741_snd_controls_stereo,
|
||
|
+ ARRAY_SIZE(w8741_snd_controls_stereo));
|
||
|
+ break;
|
||
|
+ case WM8741_DIFF_MODE_MONO_LEFT:
|
||
|
+ snd_soc_add_codec_controls(codec,
|
||
|
+ w8741_snd_controls_mono_left,
|
||
|
+ ARRAY_SIZE(w8741_snd_controls_mono_left));
|
||
|
+ break;
|
||
|
+ case WM8741_DIFF_MODE_MONO_RIGHT:
|
||
|
+ snd_soc_add_codec_controls(codec,
|
||
|
+ w8741_snd_controls_mono_right,
|
||
|
+ ARRAY_SIZE(w8741_snd_controls_mono_right));
|
||
|
+ break;
|
||
|
+ default:
|
||
|
+ return -EINVAL;
|
||
|
+ }
|
||
|
+
|
||
|
+ return 0;
|
||
|
+}
|
||
|
+
|
||
|
+static int digidac1_soundcard_init(struct snd_soc_pcm_runtime *rtd)
|
||
|
+{
|
||
|
+ struct snd_soc_codec *codec = rtd->codec;
|
||
|
+ struct snd_soc_card *card = rtd->card;
|
||
|
+ struct snd_soc_pcm_runtime *wm8741_rtd;
|
||
|
+ struct snd_soc_codec *wm8741_codec;
|
||
|
+ struct snd_card *sound_card = card->snd_card;
|
||
|
+ struct snd_kcontrol *kctl;
|
||
|
+ int ret;
|
||
|
+
|
||
|
+ wm8741_rtd = snd_soc_get_pcm_runtime(card, card->dai_link[1].name);
|
||
|
+ if (!wm8741_rtd) {
|
||
|
+ dev_warn(card->dev, "digidac1_soundcard_init: couldn't get wm8741 rtd\n");
|
||
|
+ return -EFAULT;
|
||
|
+ }
|
||
|
+ wm8741_codec = wm8741_rtd->codec;
|
||
|
+ ret = w8741_add_controls(wm8741_codec);
|
||
|
+ if (ret < 0)
|
||
|
+ dev_warn(card->dev, "Failed to add new wm8741 controls: %d\n",
|
||
|
+ ret);
|
||
|
+
|
||
|
+ /* enable TX output */
|
||
|
+ snd_soc_update_bits(codec, WM8804_PWRDN, 0x4, 0x0);
|
||
|
+
|
||
|
+ kctl = snd_soc_card_get_kcontrol(card,
|
||
|
+ "Playback Volume");
|
||
|
+ if (kctl) {
|
||
|
+ kctl->vd[0].access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
|
||
|
+ snd_ctl_remove(sound_card, kctl);
|
||
|
+ }
|
||
|
+ kctl = snd_soc_card_get_kcontrol(card,
|
||
|
+ "Fine Playback Volume");
|
||
|
+ if (kctl) {
|
||
|
+ kctl->vd[0].access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
|
||
|
+ snd_ctl_remove(sound_card, kctl);
|
||
|
+ }
|
||
|
+ return 0;
|
||
|
+}
|
||
|
+
|
||
|
+static int digidac1_soundcard_startup(struct snd_pcm_substream *substream)
|
||
|
+{
|
||
|
+ /* turn on wm8804 digital output */
|
||
|
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
|
||
|
+ struct snd_soc_codec *codec = rtd->codec;
|
||
|
+ struct snd_soc_card *card = rtd->card;
|
||
|
+ struct snd_soc_pcm_runtime *wm8741_rtd;
|
||
|
+ struct snd_soc_codec *wm8741_codec;
|
||
|
+
|
||
|
+ snd_soc_update_bits(codec, WM8804_PWRDN, 0x3c, 0x00);
|
||
|
+ wm8741_rtd = snd_soc_get_pcm_runtime(card, card->dai_link[1].name);
|
||
|
+ if (!wm8741_rtd) {
|
||
|
+ dev_warn(card->dev, "digidac1_soundcard_startup: couldn't get WM8741 rtd\n");
|
||
|
+ return -EFAULT;
|
||
|
+ }
|
||
|
+ wm8741_codec = wm8741_rtd->codec;
|
||
|
+
|
||
|
+ /* latch wm8741 level */
|
||
|
+ snd_soc_update_bits(wm8741_codec, WM8741_DACLLSB_ATTENUATION,
|
||
|
+ WM8741_UPDATELL, WM8741_UPDATELL);
|
||
|
+ snd_soc_update_bits(wm8741_codec, WM8741_DACLMSB_ATTENUATION,
|
||
|
+ WM8741_UPDATELM, WM8741_UPDATELM);
|
||
|
+ snd_soc_update_bits(wm8741_codec, WM8741_DACRLSB_ATTENUATION,
|
||
|
+ WM8741_UPDATERL, WM8741_UPDATERL);
|
||
|
+ snd_soc_update_bits(wm8741_codec, WM8741_DACRMSB_ATTENUATION,
|
||
|
+ WM8741_UPDATERM, WM8741_UPDATERM);
|
||
|
+
|
||
|
+ return 0;
|
||
|
+}
|
||
|
+
|
||
|
+static void digidac1_soundcard_shutdown(struct snd_pcm_substream *substream)
|
||
|
+{
|
||
|
+ /* turn off wm8804 digital output */
|
||
|
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
|
||
|
+ struct snd_soc_codec *codec = rtd->codec;
|
||
|
+
|
||
|
+ snd_soc_update_bits(codec, WM8804_PWRDN, 0x3c, 0x3c);
|
||
|
+}
|
||
|
+
|
||
|
+static int digidac1_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 *codec_dai = rtd->codec_dai;
|
||
|
+ struct snd_soc_codec *codec = rtd->codec;
|
||
|
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
|
||
|
+ struct snd_soc_card *card = rtd->card;
|
||
|
+ struct snd_soc_pcm_runtime *wm8741_rtd;
|
||
|
+ struct snd_soc_codec *wm8741_codec;
|
||
|
+
|
||
|
+ int sysclk = 27000000;
|
||
|
+ long mclk_freq = 0;
|
||
|
+ int mclk_div = 1;
|
||
|
+ int sampling_freq = 1;
|
||
|
+ int ret;
|
||
|
+
|
||
|
+ wm8741_rtd = snd_soc_get_pcm_runtime(card, card->dai_link[1].name);
|
||
|
+ if (!wm8741_rtd) {
|
||
|
+ dev_warn(card->dev, "digidac1_soundcard_hw_params: couldn't get WM8741 rtd\n");
|
||
|
+ return -EFAULT;
|
||
|
+ }
|
||
|
+ wm8741_codec = wm8741_rtd->codec;
|
||
|
+ 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 wm8804 TX output */
|
||
|
+ snd_soc_update_bits(codec, WM8804_PWRDN, 0x4, 0x0);
|
||
|
+
|
||
|
+ /* wm8804 Power on */
|
||
|
+ snd_soc_update_bits(codec, WM8804_PWRDN, 0x9, 0);
|
||
|
+
|
||
|
+ /* wm8804 set sampling frequency status bits */
|
||
|
+ snd_soc_update_bits(codec, WM8804_SPDTX4, 0x0f, sampling_freq);
|
||
|
+
|
||
|
+ /* Now update wm8741 registers for the correct oversampling */
|
||
|
+ if (samplerate <= 48000)
|
||
|
+ snd_soc_update_bits(wm8741_codec, WM8741_MODE_CONTROL_1,
|
||
|
+ WM8741_OSR_MASK, 0x00);
|
||
|
+ else if (samplerate <= 96000)
|
||
|
+ snd_soc_update_bits(wm8741_codec, WM8741_MODE_CONTROL_1,
|
||
|
+ WM8741_OSR_MASK, 0x20);
|
||
|
+ else
|
||
|
+ snd_soc_update_bits(wm8741_codec, WM8741_MODE_CONTROL_1,
|
||
|
+ WM8741_OSR_MASK, 0x40);
|
||
|
+
|
||
|
+ /* wm8741 bit size */
|
||
|
+ switch (params_width(params)) {
|
||
|
+ case 16:
|
||
|
+ snd_soc_update_bits(wm8741_codec, WM8741_FORMAT_CONTROL,
|
||
|
+ WM8741_IWL_MASK, 0x00);
|
||
|
+ break;
|
||
|
+ case 20:
|
||
|
+ snd_soc_update_bits(wm8741_codec, WM8741_FORMAT_CONTROL,
|
||
|
+ WM8741_IWL_MASK, 0x01);
|
||
|
+ break;
|
||
|
+ case 24:
|
||
|
+ snd_soc_update_bits(wm8741_codec, WM8741_FORMAT_CONTROL,
|
||
|
+ WM8741_IWL_MASK, 0x02);
|
||
|
+ break;
|
||
|
+ case 32:
|
||
|
+ snd_soc_update_bits(wm8741_codec, WM8741_FORMAT_CONTROL,
|
||
|
+ WM8741_IWL_MASK, 0x03);
|
||
|
+ break;
|
||
|
+ default:
|
||
|
+ dev_dbg(codec->dev, "wm8741_hw_params: Unsupported bit size param = %d",
|
||
|
+ params_width(params));
|
||
|
+ return -EINVAL;
|
||
|
+ }
|
||
|
+
|
||
|
+ return snd_soc_dai_set_bclk_ratio(cpu_dai, 64);
|
||
|
+}
|
||
|
+/* machine stream operations */
|
||
|
+static struct snd_soc_ops digidac1_soundcard_ops = {
|
||
|
+ .hw_params = digidac1_soundcard_hw_params,
|
||
|
+ .startup = digidac1_soundcard_startup,
|
||
|
+ .shutdown = digidac1_soundcard_shutdown,
|
||
|
+};
|
||
|
+
|
||
|
+static struct snd_soc_dai_link digidac1_soundcard_dai[] = {
|
||
|
+ {
|
||
|
+ .name = "RRA DigiDAC1",
|
||
|
+ .stream_name = "RRA DigiDAC1 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 = &digidac1_soundcard_ops,
|
||
|
+ .init = digidac1_soundcard_init,
|
||
|
+ },
|
||
|
+ {
|
||
|
+ .name = "RRA DigiDAC11",
|
||
|
+ .stream_name = "RRA DigiDAC11 HiFi",
|
||
|
+ .cpu_dai_name = "wm8804-spdif",
|
||
|
+ .codec_dai_name = "wm8741",
|
||
|
+ .codec_name = "wm8741.1-001a",
|
||
|
+ .dai_fmt = SND_SOC_DAIFMT_I2S
|
||
|
+ | SND_SOC_DAIFMT_NB_NF
|
||
|
+ | SND_SOC_DAIFMT_CBS_CFS,
|
||
|
+ },
|
||
|
+};
|
||
|
+
|
||
|
+/* audio machine driver */
|
||
|
+static struct snd_soc_card digidac1_soundcard = {
|
||
|
+ .name = "digidac1-soundcard",
|
||
|
+ .owner = THIS_MODULE,
|
||
|
+ .dai_link = digidac1_soundcard_dai,
|
||
|
+ .num_links = ARRAY_SIZE(digidac1_soundcard_dai),
|
||
|
+};
|
||
|
+
|
||
|
+static int digidac1_soundcard_probe(struct platform_device *pdev)
|
||
|
+{
|
||
|
+ int ret = 0;
|
||
|
+
|
||
|
+ digidac1_soundcard.dev = &pdev->dev;
|
||
|
+
|
||
|
+ if (pdev->dev.of_node) {
|
||
|
+ struct device_node *i2s_node;
|
||
|
+ struct snd_soc_dai_link *dai = &digidac1_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(&digidac1_soundcard);
|
||
|
+ if (ret && ret != -EPROBE_DEFER)
|
||
|
+ dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
|
||
|
+ ret);
|
||
|
+
|
||
|
+ return ret;
|
||
|
+}
|
||
|
+
|
||
|
+static int digidac1_soundcard_remove(struct platform_device *pdev)
|
||
|
+{
|
||
|
+ return snd_soc_unregister_card(&digidac1_soundcard);
|
||
|
+}
|
||
|
+
|
||
|
+static const struct of_device_id digidac1_soundcard_of_match[] = {
|
||
|
+ { .compatible = "rra,digidac1-soundcard", },
|
||
|
+ {},
|
||
|
+};
|
||
|
+MODULE_DEVICE_TABLE(of, digidac1_soundcard_of_match);
|
||
|
+
|
||
|
+static struct platform_driver digidac1_soundcard_driver = {
|
||
|
+ .driver = {
|
||
|
+ .name = "digidac1-audio",
|
||
|
+ .owner = THIS_MODULE,
|
||
|
+ .of_match_table = digidac1_soundcard_of_match,
|
||
|
+ },
|
||
|
+ .probe = digidac1_soundcard_probe,
|
||
|
+ .remove = digidac1_soundcard_remove,
|
||
|
+};
|
||
|
+
|
||
|
+module_platform_driver(digidac1_soundcard_driver);
|
||
|
+
|
||
|
+MODULE_AUTHOR("José M. Tasende <vintage@redrocksaudio.es>");
|
||
|
+MODULE_DESCRIPTION("ASoC Driver for RRA DigiDAC1");
|
||
|
+MODULE_LICENSE("GPL v2");
|