diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.14/950-0084-sound-Support-for-Dion-Audio-LOCO-V2-DAC-AMP-HAT.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.14/950-0084-sound-Support-for-Dion-Audio-LOCO-V2-DAC-AMP-HAT.patch | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.14/950-0084-sound-Support-for-Dion-Audio-LOCO-V2-DAC-AMP-HAT.patch b/target/linux/brcm2708/patches-4.14/950-0084-sound-Support-for-Dion-Audio-LOCO-V2-DAC-AMP-HAT.patch new file mode 100644 index 0000000000..e9aa128a66 --- /dev/null +++ b/target/linux/brcm2708/patches-4.14/950-0084-sound-Support-for-Dion-Audio-LOCO-V2-DAC-AMP-HAT.patch @@ -0,0 +1,190 @@ +From 9698288ce060841ca673ed296cc931130a566a12 Mon Sep 17 00:00:00 2001 +From: Miquel <miquelblauw@hotmail.com> +Date: Fri, 24 Feb 2017 20:51:06 +0100 +Subject: [PATCH 084/454] sound: Support for Dion Audio LOCO-V2 DAC-AMP HAT + +Signed-off-by: Miquel Blauw <info@dionaudio.nl> +--- + sound/soc/bcm/Kconfig | 7 ++ + sound/soc/bcm/Makefile | 2 + + sound/soc/bcm/dionaudio_loco-v2.c | 140 ++++++++++++++++++++++++++++++ + 3 files changed, 149 insertions(+) + create mode 100644 sound/soc/bcm/dionaudio_loco-v2.c + +--- a/sound/soc/bcm/Kconfig ++++ b/sound/soc/bcm/Kconfig +@@ -134,6 +134,13 @@ config SND_BCM2708_SOC_DIONAUDIO_LOCO + help + Say Y or M if you want to add support for Dion Audio LOCO. + ++config SND_BCM2708_SOC_DIONAUDIO_LOCO_V2 ++ tristate "Support for Dion Audio LOCO-V2 DAC-AMP" ++ depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S ++ select SND_SOC_PCM5122 ++ help ++ Say Y or M if you want to add support for Dion Audio LOCO-V2. ++ + config SND_BCM2708_SOC_ALLO_PIANO_DAC + tristate "Support for Allo Piano DAC" + depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S +--- a/sound/soc/bcm/Makefile ++++ b/sound/soc/bcm/Makefile +@@ -25,6 +25,7 @@ snd-soc-raspidac3-objs := raspidac3.o + snd-soc-audioinjector-pi-soundcard-objs := audioinjector-pi-soundcard.o + snd-soc-digidac1-soundcard-objs := digidac1-soundcard.o + snd-soc-dionaudio-loco-objs := dionaudio_loco.o ++snd-soc-dionaudio-loco-v2-objs := dionaudio_loco-v2.o + snd-soc-allo-boss-dac-objs := allo-boss-dac.o + snd-soc-allo-piano-dac-objs := allo-piano-dac.o + snd-soc-allo-piano-dac-plus-objs := allo-piano-dac-plus.o +@@ -46,6 +47,7 @@ obj-$(CONFIG_SND_BCM2708_SOC_RASPIDAC3) + obj-$(CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD) += snd-soc-audioinjector-pi-soundcard.o + obj-$(CONFIG_SND_DIGIDAC1_SOUNDCARD) += snd-soc-digidac1-soundcard.o + obj-$(CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO) += snd-soc-dionaudio-loco.o ++obj-$(CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO_V2) += snd-soc-dionaudio-loco-v2.o + obj-$(CONFIG_SND_BCM2708_SOC_ALLO_BOSS_DAC) += snd-soc-allo-boss-dac.o + obj-$(CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC) += snd-soc-allo-piano-dac.o + obj-$(CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC_PLUS) += snd-soc-allo-piano-dac-plus.o +--- /dev/null ++++ b/sound/soc/bcm/dionaudio_loco-v2.c +@@ -0,0 +1,140 @@ ++/* ++ * ASoC Driver for Dion Audio LOCO-V2 DAC-AMP ++ * ++ * Author: Miquel Blauw <info@dionaudio.nl> ++ * Copyright 2017 ++ * ++ * Based on the software of the RPi-DAC writen by Florian Meier ++ * ++ * 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 bool digital_gain_0db_limit = true; ++ ++static int snd_rpi_dionaudio_loco_v2_init(struct snd_soc_pcm_runtime *rtd) ++{ ++ if (digital_gain_0db_limit) { ++ int ret; ++ struct snd_soc_card *card = rtd->card; ++ ++ 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); ++ } ++ ++ return 0; ++} ++ ++static int snd_rpi_dionaudio_loco_v2_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); ++} ++ ++/* machine stream operations */ ++static struct snd_soc_ops snd_rpi_dionaudio_loco_v2_ops = { ++ .hw_params = snd_rpi_dionaudio_loco_v2_hw_params, ++}; ++ ++static struct snd_soc_dai_link snd_rpi_dionaudio_loco_v2_dai[] = { ++{ ++ .name = "DionAudio LOCO-V2", ++ .stream_name = "DionAudio LOCO-V2 DAC-AMP", ++ .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_dionaudio_loco_v2_ops, ++ .init = snd_rpi_dionaudio_loco_v2_init, ++},}; ++ ++/* audio machine driver */ ++static struct snd_soc_card snd_rpi_dionaudio_loco_v2 = { ++ .name = "Dion Audio LOCO-V2", ++ .dai_link = snd_rpi_dionaudio_loco_v2_dai, ++ .num_links = ARRAY_SIZE(snd_rpi_dionaudio_loco_v2_dai), ++}; ++ ++static int snd_rpi_dionaudio_loco_v2_probe(struct platform_device *pdev) ++{ ++ int ret = 0; ++ ++ snd_rpi_dionaudio_loco_v2.dev = &pdev->dev; ++ ++ if (pdev->dev.of_node) { ++ struct device_node *i2s_node; ++ struct snd_soc_dai_link *dai = ++ &snd_rpi_dionaudio_loco_v2_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; ++ } ++ ++ digital_gain_0db_limit = !of_property_read_bool( ++ pdev->dev.of_node, "dionaudio,24db_digital_gain"); ++ } ++ ++ ret = snd_soc_register_card(&snd_rpi_dionaudio_loco_v2); ++ if (ret) ++ dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ++ ret); ++ ++ return ret; ++} ++ ++static int snd_rpi_dionaudio_loco_v2_remove(struct platform_device *pdev) ++{ ++ return snd_soc_unregister_card(&snd_rpi_dionaudio_loco_v2); ++} ++ ++static const struct of_device_id dionaudio_of_match[] = { ++ { .compatible = "dionaudio,dionaudio-loco-v2", }, ++ {}, ++}; ++MODULE_DEVICE_TABLE(of, dionaudio_of_match); ++ ++static struct platform_driver snd_rpi_dionaudio_loco_v2_driver = { ++ .driver = { ++ .name = "snd-rpi-dionaudio-loco-v2", ++ .owner = THIS_MODULE, ++ .of_match_table = dionaudio_of_match, ++ }, ++ .probe = snd_rpi_dionaudio_loco_v2_probe, ++ .remove = snd_rpi_dionaudio_loco_v2_remove, ++}; ++ ++module_platform_driver(snd_rpi_dionaudio_loco_v2_driver); ++ ++MODULE_AUTHOR("Miquel Blauw <info@dionaudio.nl>"); ++MODULE_DESCRIPTION("ASoC Driver for DionAudio LOCO-V2"); ++MODULE_LICENSE("GPL v2"); |