diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.9/950-0067-ASoC-Add-support-for-Rpi-DAC.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.9/950-0067-ASoC-Add-support-for-Rpi-DAC.patch | 272 |
1 files changed, 272 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.9/950-0067-ASoC-Add-support-for-Rpi-DAC.patch b/target/linux/brcm2708/patches-4.9/950-0067-ASoC-Add-support-for-Rpi-DAC.patch new file mode 100644 index 0000000..26ae5b3 --- /dev/null +++ b/target/linux/brcm2708/patches-4.9/950-0067-ASoC-Add-support-for-Rpi-DAC.patch @@ -0,0 +1,272 @@ +From 3a890b43d08fbfe10895f733578f095a6449ba0b Mon Sep 17 00:00:00 2001 +From: Florian Meier <florian.meier@koalo.de> +Date: Mon, 25 Jan 2016 15:48:59 +0000 +Subject: [PATCH] ASoC: Add support for Rpi-DAC + +--- + sound/soc/bcm/Kconfig | 7 +++ + sound/soc/bcm/Makefile | 2 + + sound/soc/bcm/rpi-dac.c | 119 ++++++++++++++++++++++++++++++++++++++++++++ + sound/soc/codecs/Kconfig | 5 ++ + sound/soc/codecs/Makefile | 2 + + sound/soc/codecs/pcm1794a.c | 69 +++++++++++++++++++++++++ + 6 files changed, 204 insertions(+) + create mode 100644 sound/soc/bcm/rpi-dac.c + create mode 100644 sound/soc/codecs/pcm1794a.c + +--- a/sound/soc/bcm/Kconfig ++++ b/sound/soc/bcm/Kconfig +@@ -23,3 +23,10 @@ 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-$(CONFIG_SND_SOC_CYGNUS) += snd-soc- + + # BCM2708 Machine Support + snd-soc-hifiberry-dac-objs := hifiberry_dac.o ++snd-soc-rpi-dac-objs := rpi-dac.o + + obj-$(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 +1,119 @@ ++/* ++ * 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 = "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", ++ .owner = THIS_MODULE, ++ .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; ++ ++ if (pdev->dev.of_node) { ++ struct device_node *i2s_node; ++ struct snd_soc_dai_link *dai = &snd_rpi_rpi_dac_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(&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 const struct of_device_id snd_rpi_rpi_dac_of_match[] = { ++ { .compatible = "rpi,rpi-dac", }, ++ {}, ++}; ++MODULE_DEVICE_TABLE(of, snd_rpi_rpi_dac_of_match); ++ ++static struct platform_driver snd_rpi_rpi_dac_driver = { ++ .driver = { ++ .name = "snd-rpi-dac", ++ .owner = THIS_MODULE, ++ .of_match_table = snd_rpi_rpi_dac_of_match, ++ }, ++ .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"); +--- a/sound/soc/codecs/Kconfig ++++ b/sound/soc/codecs/Kconfig +@@ -98,6 +98,7 @@ config SND_SOC_ALL_CODECS + select SND_SOC_PCM1681 if I2C + select SND_SOC_PCM179X_I2C if I2C + select SND_SOC_PCM179X_SPI if SPI_MASTER ++ select SND_SOC_PCM1794A if I2C + select SND_SOC_PCM3008 + select SND_SOC_PCM3168A_I2C if I2C + select SND_SOC_PCM3168A_SPI if SPI_MASTER +@@ -689,6 +690,10 @@ config SND_SOC_RT5616 + tristate "Realtek RT5616 CODEC" + depends on I2C + ++config SND_SOC_PCM1794A ++ tristate ++ depends on I2C ++ + config SND_SOC_RT5631 + tristate "Realtek ALC5631/RT5631 CODEC" + depends on I2C +--- a/sound/soc/codecs/Makefile ++++ b/sound/soc/codecs/Makefile +@@ -93,6 +93,7 @@ snd-soc-pcm1681-objs := pcm1681.o + snd-soc-pcm179x-codec-objs := pcm179x.o + snd-soc-pcm179x-i2c-objs := pcm179x-i2c.o + snd-soc-pcm179x-spi-objs := pcm179x-spi.o ++snd-soc-pcm1794a-objs := pcm1794a.o + snd-soc-pcm3008-objs := pcm3008.o + snd-soc-pcm3168a-objs := pcm3168a.o + snd-soc-pcm3168a-i2c-objs := pcm3168a-i2c.o +@@ -325,6 +326,7 @@ obj-$(CONFIG_SND_SOC_PCM5102A) += snd-so + obj-$(CONFIG_SND_SOC_PCM512x) += snd-soc-pcm512x.o + obj-$(CONFIG_SND_SOC_PCM512x_I2C) += snd-soc-pcm512x-i2c.o + obj-$(CONFIG_SND_SOC_PCM512x_SPI) += snd-soc-pcm512x-spi.o ++obj-$(CONFIG_SND_SOC_PCM1794A) += snd-soc-pcm1794a.o + obj-$(CONFIG_SND_SOC_RL6231) += snd-soc-rl6231.o + obj-$(CONFIG_SND_SOC_RL6347A) += snd-soc-rl6347a.o + obj-$(CONFIG_SND_SOC_RT286) += snd-soc-rt286.o +--- /dev/null ++++ b/sound/soc/codecs/pcm1794a.c +@@ -0,0 +1,69 @@ ++/* ++ * 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 const struct of_device_id pcm1794a_of_match[] = { ++ { .compatible = "ti,pcm1794a", }, ++ { } ++}; ++MODULE_DEVICE_TABLE(of, pcm1794a_of_match); ++ ++static struct platform_driver pcm1794a_codec_driver = { ++ .probe = pcm1794a_probe, ++ .remove = pcm1794a_remove, ++ .driver = { ++ .name = "pcm1794a-codec", ++ .owner = THIS_MODULE, ++ .of_match_table = of_match_ptr(pcm1794a_of_match), ++ }, ++}; ++ ++module_platform_driver(pcm1794a_codec_driver); ++ ++MODULE_DESCRIPTION("ASoC PCM1794A codec driver"); ++MODULE_AUTHOR("Florian Meier <florian.meier@koalo.de>"); ++MODULE_LICENSE("GPL v2"); |