From 716ca530e1c4515d8683c9d5be3d56b301758b66 Mon Sep 17 00:00:00 2001 From: James <> Date: Wed, 4 Nov 2015 11:49:21 +0000 Subject: trunk-47381 --- ...0039-ASoC-BCM2708-Add-support-for-RPi-DAC.patch | 281 +++++++++++++++++++++ 1 file changed, 281 insertions(+) create mode 100644 target/linux/brcm2708/patches-4.1/0039-ASoC-BCM2708-Add-support-for-RPi-DAC.patch (limited to 'target/linux/brcm2708/patches-4.1/0039-ASoC-BCM2708-Add-support-for-RPi-DAC.patch') diff --git a/target/linux/brcm2708/patches-4.1/0039-ASoC-BCM2708-Add-support-for-RPi-DAC.patch b/target/linux/brcm2708/patches-4.1/0039-ASoC-BCM2708-Add-support-for-RPi-DAC.patch new file mode 100644 index 0000000..baa13cf --- /dev/null +++ b/target/linux/brcm2708/patches-4.1/0039-ASoC-BCM2708-Add-support-for-RPi-DAC.patch @@ -0,0 +1,281 @@ +From c3a1a7754a288b6c49041fcc69f79c51b36caa73 Mon Sep 17 00:00:00 2001 +From: Florian Meier +Date: Fri, 6 Dec 2013 20:50:28 +0100 +Subject: [PATCH 039/203] ASoC: BCM2708: Add support for RPi-DAC + +This adds a machine driver for the RPi-DAC. + +Signed-off-by: Florian Meier +--- + 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 ++++++++++++++++++++++++++ + 7 files changed, 193 insertions(+) + create mode 100644 sound/soc/bcm/rpi-dac.c + create mode 100644 sound/soc/codecs/pcm1794a.c + +--- a/arch/arm/mach-bcm2708/bcm2708.c ++++ b/arch/arm/mach-bcm2708/bcm2708.c +@@ -652,6 +652,20 @@ static struct platform_device snd_pcm510 + }; + #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; +@@ -825,6 +839,11 @@ void __init bcm2708_init(void) + bcm_register_device_dt(&snd_pcm5102a_codec_device); + #endif + ++#if defined(CONFIG_SND_BCM2708_SOC_RPI_DAC) || defined(CONFIG_SND_BCM2708_SOC_RPI_DAC_MODULE) ++ bcm_register_device_dt(&snd_rpi_dac_device); ++ bcm_register_device_dt(&snd_pcm1794a_codec_device); ++#endif ++ + if (!use_dt) { + for (i = 0; i < ARRAY_SIZE(amba_devs); i++) { + struct amba_device *d = amba_devs[i]; +--- 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 || SND_BCM2835_SOC_I2S ++ select SND_SOC_PCM1794A ++ help ++ Say Y or M if you want to add support for RPi-DAC. +--- a/sound/soc/bcm/Makefile ++++ b/sound/soc/bcm/Makefile +@@ -10,5 +10,7 @@ obj-$(CONFIG_SND_BCM2708_SOC_I2S) += snd + + # BCM2708 Machine Support + snd-soc-hifiberry-dac-objs := hifiberry_dac.o ++snd-soc-rpi-dac-objs := rpi-dac.o + + obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC) += snd-soc-hifiberry-dac.o ++obj-$(CONFIG_SND_BCM2708_SOC_RPI_DAC) += snd-soc-rpi-dac.o +--- /dev/null ++++ b/sound/soc/bcm/rpi-dac.c +@@ -0,0 +1,97 @@ ++/* ++ * ASoC Driver for RPi-DAC. ++ * ++ * Author: Florian Meier ++ * 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 ++#include ++ ++#include ++#include ++#include ++#include ++#include ++ ++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 = "RPi-DAC", ++ .stream_name = "RPi-DAC 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 "); ++MODULE_DESCRIPTION("ASoC Driver for RPi-DAC"); ++MODULE_LICENSE("GPL v2"); +--- a/sound/soc/codecs/Kconfig ++++ b/sound/soc/codecs/Kconfig +@@ -84,6 +84,7 @@ config SND_SOC_ALL_CODECS + select SND_SOC_PCM512x_SPI if SPI_MASTER + select SND_SOC_RT286 if I2C + select SND_SOC_PCM5102A if I2C ++ select SND_SOC_PCM1794A if I2C + select SND_SOC_RT5631 if I2C + select SND_SOC_RT5640 if I2C + select SND_SOC_RT5645 if I2C +@@ -512,6 +513,9 @@ config SND_SOC_RT286 + tristate + depends on I2C + ++config SND_SOC_PCM1794A ++ tristate ++ + config SND_SOC_PCM5102A + tristate + +--- a/sound/soc/codecs/Makefile ++++ b/sound/soc/codecs/Makefile +@@ -78,6 +78,7 @@ snd-soc-pcm512x-i2c-objs := pcm512x-i2c. + snd-soc-pcm512x-spi-objs := pcm512x-spi.o + snd-soc-rl6231-objs := rl6231.o + snd-soc-rt286-objs := rt286.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 +@@ -264,6 +265,7 @@ obj-$(CONFIG_SND_SOC_PCM512x_I2C) += snd + obj-$(CONFIG_SND_SOC_PCM512x_SPI) += snd-soc-pcm512x-spi.o + obj-$(CONFIG_SND_SOC_RL6231) += snd-soc-rl6231.o + obj-$(CONFIG_SND_SOC_RT286) += snd-soc-rt286.o ++obj-$(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 +--- /dev/null ++++ b/sound/soc/codecs/pcm1794a.c +@@ -0,0 +1,62 @@ ++/* ++ * Driver for the PCM1794A codec ++ * ++ * Author: Florian Meier ++ * 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 ++#include ++#include ++ ++#include ++ ++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 "); ++MODULE_LICENSE("GPL v2"); -- cgit v1.2.3