From f0715f5e178f2f7c0afb719a3a35c8ac250b7586 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=B6rg=20Schambacher?= Date: Thu, 12 Sep 2019 14:57:32 +0200 Subject: [PATCH] Add Hifiberry DAC+DSP soundcard driver (#3224) Adds the driver for the Hifiberry DAC+DSP. It supports capture and playback depending on the DSP firmware. Signed-off-by: Joerg Schambacher --- arch/arm/boot/dts/overlays/Makefile | 1 + arch/arm/boot/dts/overlays/README | 6 ++ .../overlays/hifiberry-dacplusdsp-overlay.dts | 34 +++++++ sound/soc/bcm/Kconfig | 7 ++ sound/soc/bcm/Makefile | 2 + sound/soc/bcm/hifiberry_dacplusdsp.c | 90 +++++++++++++++++++ sound/soc/bcm/rpi-simple-soundcard.c | 19 ++++ 10 files changed, 162 insertions(+) create mode 100644 arch/arm/boot/dts/overlays/hifiberry-dacplusdsp-overlay.dts create mode 100644 sound/soc/bcm/hifiberry_dacplusdsp.c --- a/arch/arm/boot/dts/overlays/Makefile +++ b/arch/arm/boot/dts/overlays/Makefile @@ -54,6 +54,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \ hifiberry-dacplus.dtbo \ hifiberry-dacplusadc.dtbo \ hifiberry-dacplusadcpro.dtbo \ + hifiberry-dacplusdsp.dtbo \ hifiberry-digi.dtbo \ hifiberry-digi-pro.dtbo \ hy28a.dtbo \ --- a/arch/arm/boot/dts/overlays/README +++ b/arch/arm/boot/dts/overlays/README @@ -904,6 +904,12 @@ Params: 24db_digital_gain Allow ga master for bit clock and frame clock. +Name: hifiberry-dacplusdsp +Info: Configures the HifiBerry DAC+DSP audio card +Load: dtoverlay=hifiberry-dacplusdsp +Params: + + Name: hifiberry-digi Info: Configures the HifiBerry Digi and Digi+ audio card Load: dtoverlay=hifiberry-digi --- /dev/null +++ b/arch/arm/boot/dts/overlays/hifiberry-dacplusdsp-overlay.dts @@ -0,0 +1,34 @@ +// Definitions for hifiberry DAC+DSP soundcard overlay +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2835"; + + fragment@0 { + target = <&i2s>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target-path = "/"; + __overlay__ { + dacplusdsp-codec { + #sound-dai-cells = <0>; + compatible = "hifiberry,dacplusdsp"; + status = "okay"; + }; + }; + }; + + fragment@2 { + target = <&sound>; + __overlay__ { + compatible = "hifiberrydacplusdsp,hifiberrydacplusdsp-soundcard"; + i2s-controller = <&i2s>; + status = "okay"; + }; + }; +}; --- a/sound/soc/bcm/Kconfig +++ b/sound/soc/bcm/Kconfig @@ -56,6 +56,13 @@ config SND_BCM2708_SOC_HIFIBERRY_DACPLUS help Say Y or M if you want to add support for HifiBerry DAC+ADC PRO. +config SND_BCM2708_SOC_HIFIBERRY_DACPLUSDSP + tristate "Support for HifiBerry DAC+DSP" + depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S + select SND_RPI_SIMPLE_SOUNDCARD + help + Say Y or M if you want to add support for HifiBerry DSP-DAC. + config SND_BCM2708_SOC_HIFIBERRY_DIGI tristate "Support for HifiBerry Digi" depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S --- a/sound/soc/bcm/Makefile +++ b/sound/soc/bcm/Makefile @@ -15,6 +15,7 @@ snd-soc-googlevoicehat-codec-objs := goo snd-soc-hifiberry-dacplus-objs := hifiberry_dacplus.o snd-soc-hifiberry-dacplusadc-objs := hifiberry_dacplusadc.o snd-soc-hifiberry-dacplusadcpro-objs := hifiberry_dacplusadcpro.o +snd-soc-hifiberry-dacplusdsp-objs := hifiberry_dacplusdsp.o snd-soc-justboom-dac-objs := justboom-dac.o snd-soc-rpi-cirrus-objs := rpi-cirrus.o snd-soc-rpi-proto-objs := rpi-proto.o @@ -40,6 +41,7 @@ obj-$(CONFIG_SND_BCM2708_SOC_GOOGLEVOICE obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS) += snd-soc-hifiberry-dacplus.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUSADC) += snd-soc-hifiberry-dacplusadc.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUSADCPRO) += snd-soc-hifiberry-dacplusadcpro.o +obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUSDSP) += snd-soc-hifiberry-dacplusdsp.o obj-$(CONFIG_SND_BCM2708_SOC_JUSTBOOM_DAC) += snd-soc-justboom-dac.o obj-$(CONFIG_SND_BCM2708_SOC_RPI_CIRRUS) += snd-soc-rpi-cirrus.o obj-$(CONFIG_SND_BCM2708_SOC_RPI_PROTO) += snd-soc-rpi-proto.o --- /dev/null +++ b/sound/soc/bcm/hifiberry_dacplusdsp.c @@ -0,0 +1,90 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * ASoC Driver for HiFiBerry DAC + DSP + * + * Author: Joerg Schambacher + * Copyright 2018 + * + * 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 +#include +#include +#include +#include + +static struct snd_soc_component_driver dacplusdsp_component_driver; + +static struct snd_soc_dai_driver dacplusdsp_dai = { + .name = "dacplusdsp-hifi", + .capture = { + .stream_name = "DAC+DSP Capture", + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_CONTINUOUS, + .formats = SNDRV_PCM_FMTBIT_S16_LE | + SNDRV_PCM_FMTBIT_S24_LE | + SNDRV_PCM_FMTBIT_S32_LE, + }, + .playback = { + .stream_name = "DACP+DSP Playback", + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_CONTINUOUS, + .formats = SNDRV_PCM_FMTBIT_S16_LE | + SNDRV_PCM_FMTBIT_S24_LE | + SNDRV_PCM_FMTBIT_S32_LE, + }, + .symmetric_rates = 1}; + +#ifdef CONFIG_OF +static const struct of_device_id dacplusdsp_ids[] = { + { + .compatible = "hifiberry,dacplusdsp", + }, + {} }; +MODULE_DEVICE_TABLE(of, dacplusdsp_ids); +#endif + +static int dacplusdsp_platform_probe(struct platform_device *pdev) +{ + int ret; + + ret = snd_soc_register_component(&pdev->dev, + &dacplusdsp_component_driver, &dacplusdsp_dai, 1); + if (ret) { + pr_alert("snd_soc_register_component failed\n"); + return ret; + } + + return 0; +} + +static int dacplusdsp_platform_remove(struct platform_device *pdev) +{ + snd_soc_unregister_component(&pdev->dev); + return 0; +} + +static struct platform_driver dacplusdsp_driver = { + .driver = { + .name = "hifiberry-dacplusdsp-codec", + .of_match_table = of_match_ptr(dacplusdsp_ids), + }, + .probe = dacplusdsp_platform_probe, + .remove = dacplusdsp_platform_remove, +}; + +module_platform_driver(dacplusdsp_driver); + +MODULE_AUTHOR("Joerg Schambacher "); +MODULE_DESCRIPTION("ASoC Driver for HiFiBerry DAC+DSP"); +MODULE_LICENSE("GPL v2"); --- a/sound/soc/bcm/rpi-simple-soundcard.c +++ b/sound/soc/bcm/rpi-simple-soundcard.c @@ -136,6 +136,23 @@ static struct snd_rpi_simple_drvdata drv .dai = snd_googlevoicehat_soundcard_dai, }; +static struct snd_soc_dai_link snd_hifiberrydacplusdsp_soundcard_dai[] = { +{ + .name = "Hifiberry DAC+DSP SoundCard", + .stream_name = "Hifiberry DAC+DSP SoundCard HiFi", + .codec_dai_name = "dacplusdsp-hifi", + .codec_name = "dacplusdsp-codec", + .dai_fmt = SND_SOC_DAIFMT_I2S | + SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS, +}, +}; + +static struct snd_rpi_simple_drvdata drvdata_hifiberrydacplusdsp = { + .card_name = "snd_rpi_hifiberrydacplusdsp_soundcard", + .dai = snd_hifiberrydacplusdsp_soundcard_dai, +}; + static struct snd_soc_dai_link snd_hifiberry_amp_dai[] = { { .name = "HifiBerry AMP", @@ -193,6 +210,8 @@ static const struct of_device_id snd_rpi .data = (void *) &drvdata_adau1977 }, { .compatible = "googlevoicehat,googlevoicehat-soundcard", .data = (void *) &drvdata_googlevoicehat }, + { .compatible = "hifiberrydacplusdsp,hifiberrydacplusdsp-soundcard", + .data = (void *) &drvdata_hifiberrydacplusdsp }, { .compatible = "hifiberry,hifiberry-amp", .data = (void *) &drvdata_hifiberry_amp }, { .compatible = "hifiberry,hifiberry-dac",