diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0084-RaspiDAC3-support.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.4/0084-RaspiDAC3-support.patch | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0084-RaspiDAC3-support.patch b/target/linux/brcm2708/patches-4.4/0084-RaspiDAC3-support.patch new file mode 100644 index 0000000000..3da75d31ea --- /dev/null +++ b/target/linux/brcm2708/patches-4.4/0084-RaspiDAC3-support.patch @@ -0,0 +1,243 @@ +From 5133d16d705f9ccf7f558ebc43861e1800512969 Mon Sep 17 00:00:00 2001 +From: Jan Grulich <jan@grulich.eu> +Date: Mon, 24 Aug 2015 16:03:47 +0100 +Subject: [PATCH 084/232] RaspiDAC3 support + +Signed-off-by: Jan Grulich <jan@grulich.eu> + +config: fix RaspiDAC Rev.3x dependencies + +Change depends to SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S +like the other I2S soundcard drivers. + +Signed-off-by: Matthias Reichl <hias@horus.com> +--- + sound/soc/bcm/Kconfig | 8 ++ + sound/soc/bcm/Makefile | 2 + + sound/soc/bcm/raspidac3.c | 191 ++++++++++++++++++++++++++++++++++++++++++++++ + 3 files changed, 201 insertions(+) + create mode 100644 sound/soc/bcm/raspidac3.c + +--- a/sound/soc/bcm/Kconfig ++++ b/sound/soc/bcm/Kconfig +@@ -56,3 +56,11 @@ config SND_BCM2708_SOC_IQAUDIO_DAC + select SND_SOC_PCM512x_I2C + help + Say Y or M if you want to add support for IQaudIO-DAC. ++ ++config SND_BCM2708_SOC_RASPIDAC3 ++ tristate "Support for RaspiDAC Rev.3x" ++ depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S ++ select SND_SOC_PCM512x_I2C ++ select SND_SOC_TPA6130A2 ++ help ++ Say Y or M if you want to add support for RaspiDAC Rev.3x. +--- a/sound/soc/bcm/Makefile ++++ b/sound/soc/bcm/Makefile +@@ -11,6 +11,7 @@ snd-soc-hifiberry-amp-objs := hifiberry_ + snd-soc-rpi-dac-objs := rpi-dac.o + snd-soc-rpi-proto-objs := rpi-proto.o + snd-soc-iqaudio-dac-objs := iqaudio-dac.o ++snd-soc-raspidac3-objs := raspidac3.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 +@@ -19,3 +20,4 @@ obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_A + obj-$(CONFIG_SND_BCM2708_SOC_RPI_DAC) += snd-soc-rpi-dac.o + obj-$(CONFIG_SND_BCM2708_SOC_RPI_PROTO) += snd-soc-rpi-proto.o + obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC) += snd-soc-iqaudio-dac.o ++obj-$(CONFIG_SND_BCM2708_SOC_RASPIDAC3) += snd-soc-raspidac3.o +--- /dev/null ++++ b/sound/soc/bcm/raspidac3.c +@@ -0,0 +1,191 @@ ++/* ++ * ASoC Driver for RaspiDAC v3 ++ * ++ * Author: Jan Grulich <jan@grulich.eu> ++ * Copyright 2015 ++ * based on code by Daniel Matuschek <daniel@hifiberry.com> ++ * 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 <sound/soc-dapm.h> ++ ++#include "../codecs/pcm512x.h" ++#include "../codecs/tpa6130a2.h" ++ ++/* sound card init */ ++static int snd_rpi_raspidac3_init(struct snd_soc_pcm_runtime *rtd) ++{ ++ int ret; ++ struct snd_soc_card *card = rtd->card; ++ 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, 0x08,0x00); ++ ++ ret = snd_soc_limit_volume(card, "Digital Playback Volume", 207); ++ if (ret < 0) ++ dev_warn(card->dev, "Failed to set volume limit: %d\n", ret); ++ else { ++ struct snd_kcontrol *kctl; ++ ++ ret = tpa6130a2_add_controls(codec); ++ if (ret < 0) ++ dev_warn(card->dev, "Failed to add TPA6130A2 controls: %d\n", ++ ret); ++ ret = snd_soc_limit_volume(card, ++ "TPA6130A2 Headphone Playback Volume", ++ 54); ++ if (ret < 0) ++ dev_warn(card->dev, "Failed to set TPA6130A2 volume limit: %d\n", ++ ret); ++ kctl = snd_soc_card_get_kcontrol(card, ++ "TPA6130A2 Headphone Playback Volume"); ++ if (kctl) { ++ strcpy(kctl->id.name, "Headphones Playback Volume"); ++ /* disable the volume dB scale so alsamixer works */ ++ kctl->vd[0].access = SNDRV_CTL_ELEM_ACCESS_READWRITE; ++ } ++ ++ kctl = snd_soc_card_get_kcontrol(card, ++ "TPA6130A2 Headphone Playback Switch"); ++ if (kctl) ++ strcpy(kctl->id.name, "Headphones Playback Switch"); ++ } ++ ++ return 0; ++} ++ ++/* set hw parameters */ ++static int snd_rpi_raspidac3_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; ++ ++ unsigned int sample_bits = ++ snd_pcm_format_physical_width(params_format(params)); ++ ++ return snd_soc_dai_set_bclk_ratio(cpu_dai, sample_bits * 2); ++} ++ ++/* startup */ ++static int snd_rpi_raspidac3_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); ++ tpa6130a2_stereo_enable(codec, 1); ++ return 0; ++} ++ ++/* shutdown */ ++static void snd_rpi_raspidac3_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); ++ tpa6130a2_stereo_enable(codec, 0); ++} ++ ++/* machine stream operations */ ++static struct snd_soc_ops snd_rpi_raspidac3_ops = { ++ .hw_params = snd_rpi_raspidac3_hw_params, ++ .startup = snd_rpi_raspidac3_startup, ++ .shutdown = snd_rpi_raspidac3_shutdown, ++}; ++ ++/* interface setup */ ++static struct snd_soc_dai_link snd_rpi_raspidac3_dai[] = { ++{ ++ .name = "RaspiDAC Rev.3x", ++ .stream_name = "RaspiDAC HiFi", ++ .cpu_dai_name = "bcm2708-i2s.0", ++ .codec_dai_name = "pcm512x-hifi", ++ .platform_name = "bcm2708-i2s.0", ++ .codec_name = "pcm512x.1-004c", ++ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | ++ SND_SOC_DAIFMT_CBS_CFS, ++ .ops = &snd_rpi_raspidac3_ops, ++ .init = snd_rpi_raspidac3_init, ++}, ++}; ++ ++/* audio machine driver */ ++static struct snd_soc_card snd_rpi_raspidac3 = { ++ .name = "RaspiDAC Rev.3x HiFi Audio Card", ++ .dai_link = snd_rpi_raspidac3_dai, ++ .num_links = ARRAY_SIZE(snd_rpi_raspidac3_dai), ++}; ++ ++/* sound card test */ ++static int snd_rpi_raspidac3_probe(struct platform_device *pdev) ++{ ++ int ret = 0; ++ ++ snd_rpi_raspidac3.dev = &pdev->dev; ++ ++ if (pdev->dev.of_node) { ++ struct device_node *i2s_node; ++ struct snd_soc_dai_link *dai = &snd_rpi_raspidac3_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_raspidac3); ++ if (ret) ++ dev_err(&pdev->dev, ++ "snd_soc_register_card() failed: %d\n", ret); ++ ++ return ret; ++} ++ ++/* sound card disconnect */ ++static int snd_rpi_raspidac3_remove(struct platform_device *pdev) ++{ ++ return snd_soc_unregister_card(&snd_rpi_raspidac3); ++} ++ ++static const struct of_device_id raspidac3_of_match[] = { ++ { .compatible = "jg,raspidacv3", }, ++ {}, ++}; ++MODULE_DEVICE_TABLE(of, raspidac3_of_match); ++ ++/* sound card platform driver */ ++static struct platform_driver snd_rpi_raspidac3_driver = { ++ .driver = { ++ .name = "snd-rpi-raspidac3", ++ .owner = THIS_MODULE, ++ .of_match_table = raspidac3_of_match, ++ }, ++ .probe = snd_rpi_raspidac3_probe, ++ .remove = snd_rpi_raspidac3_remove, ++}; ++ ++module_platform_driver(snd_rpi_raspidac3_driver); ++ ++MODULE_AUTHOR("Jan Grulich <jan@grulich.eu>"); ++MODULE_DESCRIPTION("ASoC Driver for RaspiDAC Rev.3x"); ++MODULE_LICENSE("GPL v2"); |