You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
191 lines
6.4 KiB
Diff
191 lines
6.4 KiB
Diff
From 754ad5a8702de8e194d1fb185b451b1e39285dea 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] 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");
|