diff options
Diffstat (limited to 'target/linux/brcm2708/patches-3.10/0120-ASoC-Add-support-for-HifiBerry-DAC.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-3.10/0120-ASoC-Add-support-for-HifiBerry-DAC.patch | 154 |
1 files changed, 0 insertions, 154 deletions
diff --git a/target/linux/brcm2708/patches-3.10/0120-ASoC-Add-support-for-HifiBerry-DAC.patch b/target/linux/brcm2708/patches-3.10/0120-ASoC-Add-support-for-HifiBerry-DAC.patch deleted file mode 100644 index 7e41d38df8..0000000000 --- a/target/linux/brcm2708/patches-3.10/0120-ASoC-Add-support-for-HifiBerry-DAC.patch +++ /dev/null @@ -1,154 +0,0 @@ -From ba93efdc28c5e66d5d01a1cd35c458aa1074d7d5 Mon Sep 17 00:00:00 2001 -From: Florian Meier <florian.meier@koalo.de> -Date: Fri, 22 Nov 2013 19:19:08 +0100 -Subject: [PATCH 120/196] ASoC: Add support for HifiBerry DAC - -This adds a machine driver for the HifiBerry DAC. -It is a sound card that can -be stacked onto the Raspberry Pi. - -Signed-off-by: Florian Meier <florian.meier@koalo.de> ---- - sound/soc/bcm/Kconfig | 7 +++ - sound/soc/bcm/Makefile | 5 +++ - sound/soc/bcm/hifiberry_dac.c | 100 ++++++++++++++++++++++++++++++++++++++++++ - 3 files changed, 112 insertions(+) - create mode 100644 sound/soc/bcm/hifiberry_dac.c - -diff --git a/sound/soc/bcm/Kconfig b/sound/soc/bcm/Kconfig -index 37c8f8c..8b14e37 100644 ---- a/sound/soc/bcm/Kconfig -+++ b/sound/soc/bcm/Kconfig -@@ -8,3 +8,10 @@ config SND_BCM2708_SOC_I2S - Say Y or M if you want to add support for codecs attached to - the BCM2708 I2S interface. You will also need - to select the audio interfaces to support below. -+ -+config SND_BCM2708_SOC_HIFIBERRY_DAC -+ tristate "Support for HifiBerry DAC" -+ depends on SND_BCM2708_SOC_I2S -+ select SND_SOC_PCM5102A -+ help -+ Say Y or M if you want to add support for HifiBerry DAC. -diff --git a/sound/soc/bcm/Makefile b/sound/soc/bcm/Makefile -index 486ea09..6834b4d 100644 ---- a/sound/soc/bcm/Makefile -+++ b/sound/soc/bcm/Makefile -@@ -2,3 +2,8 @@ - snd-soc-bcm2708-i2s-objs := bcm2708-i2s.o - - obj-$(CONFIG_SND_BCM2708_SOC_I2S) += snd-soc-bcm2708-i2s.o -+ -+# BCM2708 Machine Support -+snd-soc-hifiberry-dac-objs := hifiberry_dac.o -+ -+obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC) += snd-soc-hifiberry-dac.o -diff --git a/sound/soc/bcm/hifiberry_dac.c b/sound/soc/bcm/hifiberry_dac.c -new file mode 100644 -index 0000000..4b70b45 ---- /dev/null -+++ b/sound/soc/bcm/hifiberry_dac.c -@@ -0,0 +1,100 @@ -+/* -+ * ASoC Driver for HifiBerry 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_hifiberry_dac_init(struct snd_soc_pcm_runtime *rtd) -+{ -+ return 0; -+} -+ -+static int snd_rpi_hifiberry_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; -+ -+ 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_hifiberry_dac_ops = { -+ .hw_params = snd_rpi_hifiberry_dac_hw_params, -+}; -+ -+static struct snd_soc_dai_link snd_rpi_hifiberry_dac_dai[] = { -+{ -+ .name = "HifiBerry DAC", -+ .stream_name = "HifiBerry DAC HiFi", -+ .cpu_dai_name = "bcm2708-i2s.0", -+ .codec_dai_name = "pcm5102a-hifi", -+ .platform_name = "bcm2708-i2s.0", -+ .codec_name = "pcm5102a-codec", -+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | -+ SND_SOC_DAIFMT_CBS_CFS, -+ .ops = &snd_rpi_hifiberry_dac_ops, -+ .init = snd_rpi_hifiberry_dac_init, -+}, -+}; -+ -+/* audio machine driver */ -+static struct snd_soc_card snd_rpi_hifiberry_dac = { -+ .name = "snd_rpi_hifiberry_dac", -+ .dai_link = snd_rpi_hifiberry_dac_dai, -+ .num_links = ARRAY_SIZE(snd_rpi_hifiberry_dac_dai), -+}; -+ -+static int snd_rpi_hifiberry_dac_probe(struct platform_device *pdev) -+{ -+ int ret = 0; -+ -+ snd_rpi_hifiberry_dac.dev = &pdev->dev; -+ ret = snd_soc_register_card(&snd_rpi_hifiberry_dac); -+ if (ret) -+ dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ret); -+ -+ return ret; -+} -+ -+static int snd_rpi_hifiberry_dac_remove(struct platform_device *pdev) -+{ -+ return snd_soc_unregister_card(&snd_rpi_hifiberry_dac); -+} -+ -+static struct platform_driver snd_rpi_hifiberry_dac_driver = { -+ .driver = { -+ .name = "snd-hifiberry-dac", -+ .owner = THIS_MODULE, -+ }, -+ .probe = snd_rpi_hifiberry_dac_probe, -+ .remove = snd_rpi_hifiberry_dac_remove, -+}; -+ -+module_platform_driver(snd_rpi_hifiberry_dac_driver); -+ -+MODULE_AUTHOR("Florian Meier <florian.meier@koalo.de>"); -+MODULE_DESCRIPTION("ASoC Driver for HifiBerry DAC"); -+MODULE_LICENSE("GPL v2"); --- -1.9.1 - |