diff options
Diffstat (limited to 'target/linux/brcm2708/patches-3.14/0042-ASoC-BCM2708-Add-support-for-RPi-DAC.patch')
-rw-r--r-- | target/linux/brcm2708/patches-3.14/0042-ASoC-BCM2708-Add-support-for-RPi-DAC.patch | 316 |
1 files changed, 316 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-3.14/0042-ASoC-BCM2708-Add-support-for-RPi-DAC.patch b/target/linux/brcm2708/patches-3.14/0042-ASoC-BCM2708-Add-support-for-RPi-DAC.patch new file mode 100644 index 0000000000..7f4075a34f --- /dev/null +++ b/target/linux/brcm2708/patches-3.14/0042-ASoC-BCM2708-Add-support-for-RPi-DAC.patch @@ -0,0 +1,316 @@ +From ab038bbb25bcd86ef59a5f5651ce00d30190d4ad Mon Sep 17 00:00:00 2001 +From: Florian Meier <florian.meier@koalo.de> +Date: Fri, 6 Dec 2013 20:50:28 +0100 +Subject: [PATCH 42/54] ASoC: BCM2708: Add support for RPi-DAC + +This adds a machine driver for the RPi-DAC. + +Signed-off-by: Florian Meier <florian.meier@koalo.de> +--- + arch/arm/configs/bcmrpi_defconfig | 2 + + arch/arm/mach-bcm2708/bcm2708.c | 19 ++++++++ + sound/soc/bcm/Kconfig | 7 +++ + sound/soc/bcm/Makefile | 2 + + sound/soc/bcm/rpi-dac.c | 97 +++++++++++++++++++++++++++++++++++++++ + sound/soc/codecs/Kconfig | 4 ++ + sound/soc/codecs/Makefile | 2 + + sound/soc/codecs/pcm1794a.c | 62 +++++++++++++++++++++++++ + 8 files changed, 195 insertions(+) + create mode 100644 sound/soc/bcm/rpi-dac.c + create mode 100644 sound/soc/codecs/pcm1794a.c + +diff --git a/arch/arm/configs/bcmrpi_defconfig b/arch/arm/configs/bcmrpi_defconfig +index 36e7473..f877ab2 100644 +--- a/arch/arm/configs/bcmrpi_defconfig ++++ b/arch/arm/configs/bcmrpi_defconfig +@@ -744,8 +744,10 @@ CONFIG_SND_SOC_DMAENGINE_PCM=y + CONFIG_SND_SOC_GENERIC_DMAENGINE_PCM=y + CONFIG_SND_BCM2708_SOC_I2S=m + CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC=m ++CONFIG_SND_BCM2708_SOC_RPI_DAC=m + CONFIG_SND_SOC_I2C_AND_SPI=m + CONFIG_SND_SOC_PCM5102A=m ++CONFIG_SND_SOC_PCM1794A=m + CONFIG_SOUND_PRIME=m + CONFIG_HIDRAW=y + CONFIG_HID_A4TECH=m +diff --git a/arch/arm/mach-bcm2708/bcm2708.c b/arch/arm/mach-bcm2708/bcm2708.c +index 82b09a5..cf10f74 100644 +--- a/arch/arm/mach-bcm2708/bcm2708.c ++++ b/arch/arm/mach-bcm2708/bcm2708.c +@@ -651,6 +651,20 @@ static struct platform_device snd_pcm5102a_codec_device = { + }; + #endif + ++#if defined(CONFIG_SND_BCM2708_SOC_RPI_DAC) || defined(CONFIG_SND_BCM2708_SOC_RPI_DAC_MODULE) ++static struct platform_device snd_rpi_dac_device = { ++ .name = "snd-rpi-dac", ++ .id = 0, ++ .num_resources = 0, ++}; ++ ++static struct platform_device snd_pcm1794a_codec_device = { ++ .name = "pcm1794a-codec", ++ .id = -1, ++ .num_resources = 0, ++}; ++#endif ++ + int __init bcm_register_device(struct platform_device *pdev) + { + int ret; +@@ -783,6 +797,11 @@ void __init bcm2708_init(void) + bcm_register_device(&snd_pcm5102a_codec_device); + #endif + ++#if defined(CONFIG_SND_BCM2708_SOC_RPI_DAC) || defined(CONFIG_SND_BCM2708_SOC_RPI_DAC_MODULE) ++ bcm_register_device(&snd_rpi_dac_device); ++ bcm_register_device(&snd_pcm1794a_codec_device); ++#endif ++ + for (i = 0; i < ARRAY_SIZE(amba_devs); i++) { + struct amba_device *d = amba_devs[i]; + amba_device_register(d, &iomem_resource); +diff --git a/sound/soc/bcm/Kconfig b/sound/soc/bcm/Kconfig +index b36a62f..714841d 100644 +--- a/sound/soc/bcm/Kconfig ++++ b/sound/soc/bcm/Kconfig +@@ -25,3 +25,10 @@ config SND_BCM2708_SOC_HIFIBERRY_DAC + select SND_SOC_PCM5102A + help + Say Y or M if you want to add support for HifiBerry DAC. ++ ++config SND_BCM2708_SOC_RPI_DAC ++ tristate "Support for RPi-DAC" ++ depends on SND_BCM2708_SOC_I2S ++ select SND_SOC_PCM1794A ++ help ++ Say Y or M if you want to add support for RPi-DAC. +diff --git a/sound/soc/bcm/Makefile b/sound/soc/bcm/Makefile +index be90a49cb..ccc9809 100644 +--- a/sound/soc/bcm/Makefile ++++ b/sound/soc/bcm/Makefile +@@ -10,5 +10,7 @@ obj-$(CONFIG_SND_BCM2708_SOC_I2S) += snd-soc-bcm2708-i2s.o + + # BCM2708 Machine Support + snd-soc-hifiberry-dac-objs := hifiberry_dac.o ++snd-soc-rpi-dac-objs := rpi-dac.o + + obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC) += snd-soc-hifiberry-dac.o ++obj-$(CONFIG_SND_BCM2708_SOC_RPI_DAC) += snd-soc-rpi-dac.o +diff --git a/sound/soc/bcm/rpi-dac.c b/sound/soc/bcm/rpi-dac.c +new file mode 100644 +index 0000000..ef3cd93 +--- /dev/null ++++ b/sound/soc/bcm/rpi-dac.c +@@ -0,0 +1,97 @@ ++/* ++ * ASoC Driver for RPi-DAC. ++ * ++ * Author: 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> ++ ++static int snd_rpi_rpi_dac_init(struct snd_soc_pcm_runtime *rtd) ++{ ++ return 0; ++} ++ ++static int snd_rpi_rpi_dac_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 *cpu_dai = rtd->cpu_dai; ++ ++ return snd_soc_dai_set_bclk_ratio(cpu_dai, 32*2); ++} ++ ++/* machine stream operations */ ++static struct snd_soc_ops snd_rpi_rpi_dac_ops = { ++ .hw_params = snd_rpi_rpi_dac_hw_params, ++}; ++ ++static struct snd_soc_dai_link snd_rpi_rpi_dac_dai[] = { ++{ ++ .name = "HifiBerry Mini", ++ .stream_name = "HifiBerry Mini HiFi", ++ .cpu_dai_name = "bcm2708-i2s.0", ++ .codec_dai_name = "pcm1794a-hifi", ++ .platform_name = "bcm2708-i2s.0", ++ .codec_name = "pcm1794a-codec", ++ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | ++ SND_SOC_DAIFMT_CBS_CFS, ++ .ops = &snd_rpi_rpi_dac_ops, ++ .init = snd_rpi_rpi_dac_init, ++}, ++}; ++ ++/* audio machine driver */ ++static struct snd_soc_card snd_rpi_rpi_dac = { ++ .name = "snd_rpi_rpi_dac", ++ .dai_link = snd_rpi_rpi_dac_dai, ++ .num_links = ARRAY_SIZE(snd_rpi_rpi_dac_dai), ++}; ++ ++static int snd_rpi_rpi_dac_probe(struct platform_device *pdev) ++{ ++ int ret = 0; ++ ++ snd_rpi_rpi_dac.dev = &pdev->dev; ++ ret = snd_soc_register_card(&snd_rpi_rpi_dac); ++ if (ret) ++ dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ret); ++ ++ return ret; ++} ++ ++static int snd_rpi_rpi_dac_remove(struct platform_device *pdev) ++{ ++ return snd_soc_unregister_card(&snd_rpi_rpi_dac); ++} ++ ++static struct platform_driver snd_rpi_rpi_dac_driver = { ++ .driver = { ++ .name = "snd-rpi-dac", ++ .owner = THIS_MODULE, ++ }, ++ .probe = snd_rpi_rpi_dac_probe, ++ .remove = snd_rpi_rpi_dac_remove, ++}; ++ ++module_platform_driver(snd_rpi_rpi_dac_driver); ++ ++MODULE_AUTHOR("Florian Meier <florian.meier@koalo.de>"); ++MODULE_DESCRIPTION("ASoC Driver for RPi-DAC"); ++MODULE_LICENSE("GPL v2"); +diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig +index f0d76ec..4d2569e 100644 +--- a/sound/soc/codecs/Kconfig ++++ b/sound/soc/codecs/Kconfig +@@ -59,6 +59,7 @@ config SND_SOC_ALL_CODECS + select SND_SOC_PCM1681 if I2C + select SND_SOC_PCM1792A if SPI_MASTER + select SND_SOC_PCM3008 ++ select SND_SOC_PCM1794A + select SND_SOC_PCM5102A + select SND_SOC_RT5631 if I2C + select SND_SOC_RT5640 if I2C +@@ -314,6 +315,9 @@ config SND_SOC_PCM1792A + config SND_SOC_PCM3008 + tristate + ++config SND_SOC_PCM1794A ++ tristate ++ + config SND_SOC_PCM5102A + tristate + +diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile +index 612f414..9b806a2 100644 +--- a/sound/soc/codecs/Makefile ++++ b/sound/soc/codecs/Makefile +@@ -46,6 +46,7 @@ snd-soc-hdmi-codec-objs := hdmi.o + snd-soc-pcm1681-objs := pcm1681.o + snd-soc-pcm1792a-codec-objs := pcm1792a.o + snd-soc-pcm3008-objs := pcm3008.o ++snd-soc-pcm1794a-objs := pcm1794a.o + snd-soc-pcm5102a-objs := pcm5102a.o + snd-soc-rt5631-objs := rt5631.o + snd-soc-rt5640-objs := rt5640.o +@@ -180,6 +181,7 @@ obj-$(CONFIG_SND_SOC_HDMI_CODEC) += snd-soc-hdmi-codec.o + obj-$(CONFIG_SND_SOC_PCM1681) += snd-soc-pcm1681.o + obj-$(CONFIG_SND_SOC_PCM1792A) += snd-soc-pcm1792a-codec.o + obj-$(CONFIG_SND_SOC_PCM3008) += snd-soc-pcm3008.o ++obj-$(CONFIG_SND_SOC_PCM1794A) += snd-soc-pcm1794a.o + obj-$(CONFIG_SND_SOC_PCM5102A) += snd-soc-pcm5102a.o + obj-$(CONFIG_SND_SOC_RT5631) += snd-soc-rt5631.o + obj-$(CONFIG_SND_SOC_RT5640) += snd-soc-rt5640.o +diff --git a/sound/soc/codecs/pcm1794a.c b/sound/soc/codecs/pcm1794a.c +new file mode 100644 +index 0000000..b4eaa44 +--- /dev/null ++++ b/sound/soc/codecs/pcm1794a.c +@@ -0,0 +1,62 @@ ++/* ++ * Driver for the PCM1794A codec ++ * ++ * Author: 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/init.h> ++#include <linux/module.h> ++#include <linux/platform_device.h> ++ ++#include <sound/soc.h> ++ ++static struct snd_soc_dai_driver pcm1794a_dai = { ++ .name = "pcm1794a-hifi", ++ .playback = { ++ .channels_min = 2, ++ .channels_max = 2, ++ .rates = SNDRV_PCM_RATE_8000_192000, ++ .formats = SNDRV_PCM_FMTBIT_S16_LE | ++ SNDRV_PCM_FMTBIT_S24_LE ++ }, ++}; ++ ++static struct snd_soc_codec_driver soc_codec_dev_pcm1794a; ++ ++static int pcm1794a_probe(struct platform_device *pdev) ++{ ++ return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_pcm1794a, ++ &pcm1794a_dai, 1); ++} ++ ++static int pcm1794a_remove(struct platform_device *pdev) ++{ ++ snd_soc_unregister_codec(&pdev->dev); ++ return 0; ++} ++ ++static struct platform_driver pcm1794a_codec_driver = { ++ .probe = pcm1794a_probe, ++ .remove = pcm1794a_remove, ++ .driver = { ++ .name = "pcm1794a-codec", ++ .owner = THIS_MODULE, ++ }, ++}; ++ ++module_platform_driver(pcm1794a_codec_driver); ++ ++MODULE_DESCRIPTION("ASoC PCM1794A codec driver"); ++MODULE_AUTHOR("Florian Meier <florian.meier@koalo.de>"); ++MODULE_LICENSE("GPL v2"); +-- +1.9.1 + |