diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0372-New-driver-for-RRA-DigiDAC1-soundcard-using-WM8741-W.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.4/0372-New-driver-for-RRA-DigiDAC1-soundcard-using-WM8741-W.patch | 602 |
1 files changed, 602 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0372-New-driver-for-RRA-DigiDAC1-soundcard-using-WM8741-W.patch b/target/linux/brcm2708/patches-4.4/0372-New-driver-for-RRA-DigiDAC1-soundcard-using-WM8741-W.patch new file mode 100644 index 0000000000..303d45d38e --- /dev/null +++ b/target/linux/brcm2708/patches-4.4/0372-New-driver-for-RRA-DigiDAC1-soundcard-using-WM8741-W.patch @@ -0,0 +1,602 @@ +From bcba10e5c5da279fa57920ee1c08ee1dea84a4f6 Mon Sep 17 00:00:00 2001 +From: escalator2015 <jmtasende@gmail.com> +Date: Tue, 24 May 2016 16:20:09 +0100 +Subject: [PATCH] New driver for RRA DigiDAC1 soundcard using WM8741 + WM8804 + +--- + arch/arm/boot/dts/overlays/Makefile | 1 + + arch/arm/boot/dts/overlays/README | 6 + + .../overlays/rra-digidac1-wm8741-audio-overlay.dts | 81 ++++ + arch/arm/configs/bcm2709_defconfig | 1 + + arch/arm/configs/bcmrpi_defconfig | 1 + + sound/soc/bcm/Kconfig | 8 + + sound/soc/bcm/Makefile | 2 + + sound/soc/bcm/digidac1-soundcard.c | 422 +++++++++++++++++++++ + 8 files changed, 522 insertions(+) + create mode 100644 arch/arm/boot/dts/overlays/rra-digidac1-wm8741-audio-overlay.dts + create mode 100644 sound/soc/bcm/digidac1-soundcard.c + +--- a/arch/arm/boot/dts/overlays/Makefile ++++ b/arch/arm/boot/dts/overlays/Makefile +@@ -67,6 +67,7 @@ dtbo-$(RPI_DT_OVERLAYS) += rpi-display.d + dtbo-$(RPI_DT_OVERLAYS) += rpi-ft5406.dtbo + dtbo-$(RPI_DT_OVERLAYS) += rpi-proto.dtbo + dtbo-$(RPI_DT_OVERLAYS) += rpi-sense.dtbo ++dtbo-$(RPI_DT_OVERLAYS) += rra-digidac1-wm8741-audio.dtbo + dtbo-$(RPI_DT_OVERLAYS) += sdhost.dtbo + dtbo-$(RPI_DT_OVERLAYS) += sdio.dtbo + dtbo-$(RPI_DT_OVERLAYS) += sdio-1bit.dtbo +--- a/arch/arm/boot/dts/overlays/README ++++ b/arch/arm/boot/dts/overlays/README +@@ -842,6 +842,12 @@ Load: dtoverlay=rpi-sense + Params: <None> + + ++Name: rra-digidac1-wm8741-audio ++Info: Configures the Red Rocks Audio DigiDAC1 soundcard ++Load: dtoverlay=rra-digidac1-wm8741-audio ++Params: <None> ++ ++ + Name: sdhost + Info: Selects the bcm2835-sdhost SD/MMC driver, optionally with overclock. + N.B. This overlay is designed for situations where the mmc driver is +--- /dev/null ++++ b/arch/arm/boot/dts/overlays/rra-digidac1-wm8741-audio-overlay.dts +@@ -0,0 +1,81 @@ ++// Definitions for RRA DigiDAC1 Audio card ++/dts-v1/; ++/plugin/; ++ ++/ { ++ compatible = "brcm,bcm2708"; ++ ++ fragment@0 { ++ target-path = "/"; ++ __overlay__ { ++ aliases { ++ ldo0 = &ldo0; ++ ldo1 = &ldo1; ++ }; ++ }; ++ }; ++ ++ fragment@1 { ++ target-path = "/soc"; ++ __overlay__ { ++ ++ ldo1: ldo1 { ++ compatible = "regulator-fixed"; ++ regulator-name = "DC_5V"; ++ regulator-min-microvolt = <5000000>; ++ regulator-max-microvolt = <5000000>; ++ regulator-always-on; ++ }; ++ ++ ldo0: ldo0 { ++ compatible = "regulator-fixed"; ++ regulator-name = "DC_3V3"; ++ regulator-min-microvolt = <3300000>; ++ regulator-max-microvolt = <3300000>; ++ regulator-always-on; ++ }; ++ }; ++ }; ++ ++ fragment@2 { ++ target = <&i2s>; ++ __overlay__ { ++ status = "okay"; ++ }; ++ }; ++ ++ fragment@3 { ++ target = <&i2c1>; ++ __overlay__ { ++ #address-cells = <1>; ++ #size-cells = <0>; ++ status = "okay"; ++ ++ wm8804@3b { ++ #sound-dai-cells = <0>; ++ compatible = "wlf,wm8804"; ++ reg = <0x3b>; ++ status = "okay"; ++ PVDD-supply = <&ldo0>; ++ DVDD-supply = <&ldo0>; ++ }; ++ ++ wm8742: wm8741@1a { ++ compatible = "wlf,wm8741"; ++ reg = <0x1a>; ++ status = "okay"; ++ AVDD-supply = <&ldo1>; ++ DVDD-supply = <&ldo0>; ++ }; ++ }; ++ }; ++ ++ fragment@4 { ++ target = <&sound>; ++ __overlay__ { ++ compatible = "rra,digidac1-soundcard"; ++ i2s-controller = <&i2s>; ++ status = "okay"; ++ }; ++ }; ++}; +--- a/arch/arm/configs/bcm2709_defconfig ++++ b/arch/arm/configs/bcm2709_defconfig +@@ -866,6 +866,7 @@ CONFIG_SND_BCM2708_SOC_JUSTBOOM_DIGI=m + CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC=m + CONFIG_SND_BCM2708_SOC_RASPIDAC3=m + CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD=m ++CONFIG_SND_DIGIDAC1_SOUNDCARD=m + CONFIG_SND_BCM2708_SOC_ADAU1977_ADC=m + CONFIG_SND_SOC_ADAU1701=m + CONFIG_SND_SOC_WM8804_I2C=m +--- a/arch/arm/configs/bcmrpi_defconfig ++++ b/arch/arm/configs/bcmrpi_defconfig +@@ -858,6 +858,7 @@ CONFIG_SND_BCM2708_SOC_JUSTBOOM_DIGI=m + CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC=m + CONFIG_SND_BCM2708_SOC_RASPIDAC3=m + CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD=m ++CONFIG_SND_DIGIDAC1_SOUNDCARD=m + CONFIG_SND_BCM2708_SOC_ADAU1977_ADC=m + CONFIG_SND_SOC_ADAU1701=m + CONFIG_SND_SOC_WM8804_I2C=m +--- a/sound/soc/bcm/Kconfig ++++ b/sound/soc/bcm/Kconfig +@@ -92,3 +92,11 @@ 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 +@@ -16,6 +16,7 @@ snd-soc-rpi-proto-objs := rpi-proto.o + snd-soc-iqaudio-dac-objs := iqaudio-dac.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_DAC) += snd-soc-hifiberry-dac.o +@@ -29,4 +30,5 @@ obj-$(CONFIG_SND_BCM2708_SOC_RPI_PROTO) + obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC) += snd-soc-iqaudio-dac.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) ++ 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"); |