diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0071-Added-support-for-HiFiBerry-DAC.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.4/0071-Added-support-for-HiFiBerry-DAC.patch | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0071-Added-support-for-HiFiBerry-DAC.patch b/target/linux/brcm2708/patches-4.4/0071-Added-support-for-HiFiBerry-DAC.patch new file mode 100644 index 0000000000..2c2ed05b63 --- /dev/null +++ b/target/linux/brcm2708/patches-4.4/0071-Added-support-for-HiFiBerry-DAC.patch @@ -0,0 +1,190 @@ +From 21d1427a7563d56ca1fdcee66cb80e7f2879c6b8 Mon Sep 17 00:00:00 2001 +From: Daniel Matuschek <info@crazy-audio.com> +Date: Mon, 4 Aug 2014 10:06:56 +0200 +Subject: [PATCH 071/127] Added support for HiFiBerry DAC+ + +The driver is based on the HiFiBerry DAC driver. However HiFiBerry DAC+ uses +a different codec chip (PCM5122), therefore a new driver is necessary. +--- + sound/soc/bcm/Kconfig | 7 ++ + sound/soc/bcm/Makefile | 2 + + sound/soc/bcm/hifiberry_dacplus.c | 141 ++++++++++++++++++++++++++++++++++++++ + 3 files changed, 150 insertions(+) + create mode 100644 sound/soc/bcm/hifiberry_dacplus.c + +--- a/sound/soc/bcm/Kconfig ++++ b/sound/soc/bcm/Kconfig +@@ -15,6 +15,13 @@ config SND_BCM2708_SOC_HIFIBERRY_DAC + help + Say Y or M if you want to add support for HifiBerry DAC. + ++config SND_BCM2708_SOC_HIFIBERRY_DACPLUS ++ tristate "Support for HifiBerry DAC+" ++ depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S ++ select SND_SOC_PCM512x ++ help ++ Say Y or M if you want to add support for HifiBerry 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 +@@ -5,11 +5,13 @@ obj-$(CONFIG_SND_BCM2835_SOC_I2S) += snd + + # BCM2708 Machine Support + snd-soc-hifiberry-dac-objs := hifiberry_dac.o ++snd-soc-hifiberry-dacplus-objs := hifiberry_dacplus.o + snd-soc-hifiberry-digi-objs := hifiberry_digi.o + snd-soc-rpi-dac-objs := rpi-dac.o + snd-soc-iqaudio-dac-objs := iqaudio-dac.o + + obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC) += snd-soc-hifiberry-dac.o ++obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS) += snd-soc-hifiberry-dacplus.o + obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DIGI) += snd-soc-hifiberry-digi.o + obj-$(CONFIG_SND_BCM2708_SOC_RPI_DAC) += snd-soc-rpi-dac.o + obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC) += snd-soc-iqaudio-dac.o +--- /dev/null ++++ b/sound/soc/bcm/hifiberry_dacplus.c +@@ -0,0 +1,141 @@ ++/* ++ * ASoC Driver for HiFiBerry DAC+ ++ * ++ * Author: Daniel Matuschek ++ * Copyright 2014 ++ * based on code by Florian Meier <florian.meier@koalo.de> ++ * ++ * 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> ++ ++#include "../codecs/pcm512x.h" ++ ++static int snd_rpi_hifiberry_dacplus_init(struct snd_soc_pcm_runtime *rtd) ++{ ++ struct snd_soc_codec *codec = rtd->codec; ++ snd_soc_update_bits(codec, PCM512x_GPIO_EN, 0x08, 0x08); ++ snd_soc_update_bits(codec, PCM512x_GPIO_OUTPUT_4, 0xf, 0x02); ++ snd_soc_update_bits(codec, PCM512x_GPIO_CONTROL_1, 0x08,0x08); ++ return 0; ++} ++ ++static int snd_rpi_hifiberry_dacplus_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, 64); ++} ++ ++static int snd_rpi_hifiberry_dacplus_startup(struct snd_pcm_substream *substream) { ++ struct snd_soc_pcm_runtime *rtd = substream->private_data; ++ struct snd_soc_codec *codec = rtd->codec; ++ snd_soc_update_bits(codec, PCM512x_GPIO_CONTROL_1, 0x08,0x08); ++ return 0; ++} ++ ++static void snd_rpi_hifiberry_dacplus_shutdown(struct snd_pcm_substream *substream) { ++ struct snd_soc_pcm_runtime *rtd = substream->private_data; ++ struct snd_soc_codec *codec = rtd->codec; ++ snd_soc_update_bits(codec, PCM512x_GPIO_CONTROL_1, 0x08,0x00); ++} ++ ++/* machine stream operations */ ++static struct snd_soc_ops snd_rpi_hifiberry_dacplus_ops = { ++ .hw_params = snd_rpi_hifiberry_dacplus_hw_params, ++ .startup = snd_rpi_hifiberry_dacplus_startup, ++ .shutdown = snd_rpi_hifiberry_dacplus_shutdown, ++}; ++ ++static struct snd_soc_dai_link snd_rpi_hifiberry_dacplus_dai[] = { ++{ ++ .name = "HiFiBerry DAC+", ++ .stream_name = "HiFiBerry DAC+ HiFi", ++ .cpu_dai_name = "bcm2708-i2s.0", ++ .codec_dai_name = "pcm512x-hifi", ++ .platform_name = "bcm2708-i2s.0", ++ .codec_name = "pcm512x.1-004d", ++ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | ++ SND_SOC_DAIFMT_CBS_CFS, ++ .ops = &snd_rpi_hifiberry_dacplus_ops, ++ .init = snd_rpi_hifiberry_dacplus_init, ++}, ++}; ++ ++/* audio machine driver */ ++static struct snd_soc_card snd_rpi_hifiberry_dacplus = { ++ .name = "snd_rpi_hifiberry_dacplus", ++ .dai_link = snd_rpi_hifiberry_dacplus_dai, ++ .num_links = ARRAY_SIZE(snd_rpi_hifiberry_dacplus_dai), ++}; ++ ++static int snd_rpi_hifiberry_dacplus_probe(struct platform_device *pdev) ++{ ++ int ret = 0; ++ ++ snd_rpi_hifiberry_dacplus.dev = &pdev->dev; ++ ++ if (pdev->dev.of_node) { ++ struct device_node *i2s_node; ++ struct snd_soc_dai_link *dai = &snd_rpi_hifiberry_dacplus_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_hifiberry_dacplus); ++ if (ret) ++ dev_err(&pdev->dev, ++ "snd_soc_register_card() failed: %d\n", ret); ++ ++ return ret; ++} ++ ++static int snd_rpi_hifiberry_dacplus_remove(struct platform_device *pdev) ++{ ++ return snd_soc_unregister_card(&snd_rpi_hifiberry_dacplus); ++} ++ ++static const struct of_device_id snd_rpi_hifiberry_dacplus_of_match[] = { ++ { .compatible = "hifiberry,hifiberry-dacplus", }, ++ {}, ++}; ++MODULE_DEVICE_TABLE(of, snd_rpi_hifiberry_dacplus_of_match); ++ ++static struct platform_driver snd_rpi_hifiberry_dacplus_driver = { ++ .driver = { ++ .name = "snd-rpi-hifiberry-dacplus", ++ .owner = THIS_MODULE, ++ .of_match_table = snd_rpi_hifiberry_dacplus_of_match, ++ }, ++ .probe = snd_rpi_hifiberry_dacplus_probe, ++ .remove = snd_rpi_hifiberry_dacplus_remove, ++}; ++ ++module_platform_driver(snd_rpi_hifiberry_dacplus_driver); ++ ++MODULE_AUTHOR("Daniel Matuschek <daniel@hifiberry.com>"); ++MODULE_DESCRIPTION("ASoC Driver for HiFiBerry DAC+"); ++MODULE_LICENSE("GPL v2"); |