+++ /dev/null
-From 52fceff596533a847231d1f9b8ea13d4e6ee829b Mon Sep 17 00:00:00 2001
-From: Florian Meier <florian.meier@koalo.de>
-Date: Fri, 6 Dec 2013 20:50:28 +0100
-Subject: [PATCH 036/114] ASoC: BCM2708: Add support for RPi-DAC
-
-This adds a machine driver for the RPi-DAC.
-
-Signed-off-by: Florian Meier <florian.meier@koalo.de>
----
- arch/arm/configs/bcmrpi_defconfig | 1 +
- arch/arm/mach-bcm2708/bcm2708.c | 19 ++++++++
- sound/soc/bcm/Kconfig | 7 +++
- sound/soc/bcm/Makefile | 2 +
- sound/soc/bcm/rpi-dac.c | 97 +++++++++++++++++++++++++++++++++++++++
- sound/soc/codecs/Kconfig | 4 ++
- sound/soc/codecs/Makefile | 2 +
- sound/soc/codecs/pcm1794a.c | 62 +++++++++++++++++++++++++
- 8 files changed, 194 insertions(+)
- create mode 100644 sound/soc/bcm/rpi-dac.c
- create mode 100644 sound/soc/codecs/pcm1794a.c
-
---- a/arch/arm/configs/bcmrpi_defconfig
-+++ b/arch/arm/configs/bcmrpi_defconfig
-@@ -756,6 +756,7 @@ CONFIG_SND_USB_6FIRE=m
- CONFIG_SND_SOC=m
- CONFIG_SND_BCM2708_SOC_I2S=m
- CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC=m
-+CONFIG_SND_BCM2708_SOC_RPI_DAC=m
- CONFIG_SND_SIMPLE_CARD=m
- CONFIG_SOUND_PRIME=m
- CONFIG_HIDRAW=y
---- a/arch/arm/mach-bcm2708/bcm2708.c
-+++ b/arch/arm/mach-bcm2708/bcm2708.c
-@@ -623,6 +623,20 @@ static struct platform_device snd_pcm510
- };
- #endif
-
-+#if defined(CONFIG_SND_BCM2708_SOC_RPI_DAC) || defined(CONFIG_SND_BCM2708_SOC_RPI_DAC_MODULE)
-+static struct platform_device snd_rpi_dac_device = {
-+ .name = "snd-rpi-dac",
-+ .id = 0,
-+ .num_resources = 0,
-+};
-+
-+static struct platform_device snd_pcm1794a_codec_device = {
-+ .name = "pcm1794a-codec",
-+ .id = -1,
-+ .num_resources = 0,
-+};
-+#endif
-+
- int __init bcm_register_device(struct platform_device *pdev)
- {
- int ret;
-@@ -752,6 +766,11 @@ void __init bcm2708_init(void)
- bcm_register_device(&snd_pcm5102a_codec_device);
- #endif
-
-+#if defined(CONFIG_SND_BCM2708_SOC_RPI_DAC) || defined(CONFIG_SND_BCM2708_SOC_RPI_DAC_MODULE)
-+ bcm_register_device(&snd_rpi_dac_device);
-+ bcm_register_device(&snd_pcm1794a_codec_device);
-+#endif
-+
- for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
- struct amba_device *d = amba_devs[i];
- amba_device_register(d, &iomem_resource);
---- a/sound/soc/bcm/Kconfig
-+++ b/sound/soc/bcm/Kconfig
-@@ -25,3 +25,10 @@ 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
-+ 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-$(CONFIG_SND_BCM2708_SOC_I2S) += snd
-
- # BCM2708 Machine Support
- snd-soc-hifiberry-dac-objs := hifiberry_dac.o
-+snd-soc-rpi-dac-objs := rpi-dac.o
-
- obj-$(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 +1,97 @@
-+/*
-+ * 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",
-+ .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;
-+ 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 struct platform_driver snd_rpi_rpi_dac_driver = {
-+ .driver = {
-+ .name = "snd-rpi-dac",
-+ .owner = THIS_MODULE,
-+ },
-+ .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
-@@ -81,6 +81,7 @@ config SND_SOC_ALL_CODECS
- select SND_SOC_PCM512x_SPI if SPI_MASTER
- select SND_SOC_RT286 if I2C
- select SND_SOC_PCM5102A if I2C
-+ select SND_SOC_PCM1794A if I2C
- select SND_SOC_RT5631 if I2C
- select SND_SOC_RT5640 if I2C
- select SND_SOC_RT5645 if I2C
-@@ -487,6 +488,9 @@ config SND_SOC_RT286
- tristate
- depends on I2C
-
-+config SND_SOC_PCM1794A
-+ tristate
-+
- config SND_SOC_PCM5102A
- tristate
-
---- a/sound/soc/codecs/Makefile
-+++ b/sound/soc/codecs/Makefile
-@@ -74,6 +74,7 @@ snd-soc-pcm512x-i2c-objs := pcm512x-i2c.
- snd-soc-pcm512x-spi-objs := pcm512x-spi.o
- snd-soc-rl6231-objs := rl6231.o
- snd-soc-rt286-objs := rt286.o
-+snd-soc-pcm1794a-objs := pcm1794a.o
- snd-soc-pcm5102a-objs := pcm5102a.o
- snd-soc-rt5631-objs := rt5631.o
- snd-soc-rt5640-objs := rt5640.o
-@@ -251,6 +252,7 @@ obj-$(CONFIG_SND_SOC_PCM512x_I2C) += snd
- obj-$(CONFIG_SND_SOC_PCM512x_SPI) += snd-soc-pcm512x-spi.o
- obj-$(CONFIG_SND_SOC_RL6231) += snd-soc-rl6231.o
- obj-$(CONFIG_SND_SOC_RT286) += snd-soc-rt286.o
-+obj-$(CONFIG_SND_SOC_PCM1794A) += snd-soc-pcm1794a.o
- obj-$(CONFIG_SND_SOC_PCM5102A) += snd-soc-pcm5102a.o
- obj-$(CONFIG_SND_SOC_RT5631) += snd-soc-rt5631.o
- obj-$(CONFIG_SND_SOC_RT5640) += snd-soc-rt5640.o
---- /dev/null
-+++ b/sound/soc/codecs/pcm1794a.c
-@@ -0,0 +1,62 @@
-+/*
-+ * 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 struct platform_driver pcm1794a_codec_driver = {
-+ .probe = pcm1794a_probe,
-+ .remove = pcm1794a_remove,
-+ .driver = {
-+ .name = "pcm1794a-codec",
-+ .owner = THIS_MODULE,
-+ },
-+};
-+
-+module_platform_driver(pcm1794a_codec_driver);
-+
-+MODULE_DESCRIPTION("ASoC PCM1794A codec driver");
-+MODULE_AUTHOR("Florian Meier <florian.meier@koalo.de>");
-+MODULE_LICENSE("GPL v2");
projects / openwrt / svn-archive / archive.git / blobdiff