diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.14/950-0064-ASoC-Add-support-for-HifiBerry-DAC.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.14/950-0064-ASoC-Add-support-for-HifiBerry-DAC.patch | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/target/linux/brcm2708/patches-4.14/950-0064-ASoC-Add-support-for-HifiBerry-DAC.patch b/target/linux/brcm2708/patches-4.14/950-0064-ASoC-Add-support-for-HifiBerry-DAC.patch deleted file mode 100644 index 7306e674f8..0000000000 --- a/target/linux/brcm2708/patches-4.14/950-0064-ASoC-Add-support-for-HifiBerry-DAC.patch +++ /dev/null @@ -1,170 +0,0 @@ -From d8e006c632e99c1f7440673181104768135a64e4 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 064/454] 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 | 9 ++- - sound/soc/bcm/Makefile | 4 ++ - sound/soc/bcm/hifiberry_dac.c | 124 ++++++++++++++++++++++++++++++++++ - 3 files changed, 136 insertions(+), 1 deletion(-) - create mode 100644 sound/soc/bcm/hifiberry_dac.c - ---- a/sound/soc/bcm/Kconfig -+++ b/sound/soc/bcm/Kconfig -@@ -16,4 +16,11 @@ config SND_SOC_CYGNUS - Say Y if you want to add support for ASoC audio on Broadcom - Cygnus chips (bcm958300, bcm958305, bcm911360) - -- If you don't know what to do here, say N. -\ No newline at end of file -+ If you don't know what to do here, say N. -+ -+config SND_BCM2708_SOC_HIFIBERRY_DAC -+ tristate "Support for HifiBerry DAC" -+ depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S -+ select SND_SOC_PCM5102A -+ help -+ Say Y or M if you want to add support for HifiBerry DAC. ---- a/sound/soc/bcm/Makefile -+++ b/sound/soc/bcm/Makefile -@@ -8,3 +8,7 @@ snd-soc-cygnus-objs := cygnus-pcm.o cygn - - obj-$(CONFIG_SND_SOC_CYGNUS) += snd-soc-cygnus.o - -+# BCM2708 Machine Support -+snd-soc-hifiberry-dac-objs := hifiberry_dac.o -+ -+obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC) += snd-soc-hifiberry-dac.o ---- /dev/null -+++ b/sound/soc/bcm/hifiberry_dac.c -@@ -0,0 +1,124 @@ -+/* -+ * 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", -+ .driver_name = "HifiberryDac", -+ .owner = THIS_MODULE, -+ .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; -+ -+ if (pdev->dev.of_node) { -+ struct device_node *i2s_node; -+ struct snd_soc_dai_link *dai = &snd_rpi_hifiberry_dac_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_dac); -+ if (ret && ret != -EPROBE_DEFER) -+ 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 const struct of_device_id snd_rpi_hifiberry_dac_of_match[] = { -+ { .compatible = "hifiberry,hifiberry-dac", }, -+ {}, -+}; -+MODULE_DEVICE_TABLE(of, snd_rpi_hifiberry_dac_of_match); -+ -+static struct platform_driver snd_rpi_hifiberry_dac_driver = { -+ .driver = { -+ .name = "snd-hifiberry-dac", -+ .owner = THIS_MODULE, -+ .of_match_table = snd_rpi_hifiberry_dac_of_match, -+ }, -+ .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"); |