diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0146-Added-IQaudIO-Pi-Codec-board-support-2969.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0146-Added-IQaudIO-Pi-Codec-board-support-2969.patch | 332 |
1 files changed, 332 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0146-Added-IQaudIO-Pi-Codec-board-support-2969.patch b/target/linux/bcm27xx/patches-5.4/950-0146-Added-IQaudIO-Pi-Codec-board-support-2969.patch new file mode 100644 index 0000000000..2e4039c6b1 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0146-Added-IQaudIO-Pi-Codec-board-support-2969.patch @@ -0,0 +1,332 @@ +From 1f912d3042032514c33736723300b3ed618ddd08 Mon Sep 17 00:00:00 2001 +From: IQaudIO <gordon@iqaudio.com> +Date: Mon, 13 May 2019 21:53:05 +0100 +Subject: [PATCH] Added IQaudIO Pi-Codec board support (#2969) + +Add support for the IQaudIO Pi-Codec board. + +Signed-off-by: Gordon <gordon@iqaudio.com> + +Fixed 48k timing issue + +ASoC: iqaudio-codec: use modern dai_link style + +Signed-off-by: Hui Wang <hui.wang@canonical.com> +--- + sound/soc/bcm/Kconfig | 7 + + sound/soc/bcm/Makefile | 2 + + sound/soc/bcm/iqaudio-codec.c | 274 ++++++++++++++++++++++++++++++++++ + 3 files changed, 283 insertions(+) + create mode 100644 sound/soc/bcm/iqaudio-codec.c + +--- a/sound/soc/bcm/Kconfig ++++ b/sound/soc/bcm/Kconfig +@@ -104,6 +104,13 @@ config SND_BCM2708_SOC_JUSTBOOM_DIGI + help + Say Y or M if you want to add support for JustBoom Digi. + ++config SND_BCM2708_SOC_IQAUDIO_CODEC ++ tristate "Support for IQaudIO-CODEC" ++ depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S ++ select SND_SOC_DA7213 ++ help ++ Say Y or M if you want to add support for IQaudIO-CODEC. ++ + config SND_BCM2708_SOC_IQAUDIO_DAC + tristate "Support for IQaudIO-DAC" + depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S +--- a/sound/soc/bcm/Makefile ++++ b/sound/soc/bcm/Makefile +@@ -18,6 +18,7 @@ snd-soc-hifiberry-dacplusadc-objs := hif + snd-soc-justboom-dac-objs := justboom-dac.o + snd-soc-rpi-cirrus-objs := rpi-cirrus.o + snd-soc-rpi-proto-objs := rpi-proto.o ++snd-soc-iqaudio-codec-objs := iqaudio-codec.o + snd-soc-iqaudio-dac-objs := iqaudio-dac.o + snd-soc-i-sabre-q2m-objs := i-sabre-q2m.o + snd-soc-audioinjector-pi-soundcard-objs := audioinjector-pi-soundcard.o +@@ -41,6 +42,7 @@ obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_D + obj-$(CONFIG_SND_BCM2708_SOC_JUSTBOOM_DAC) += snd-soc-justboom-dac.o + obj-$(CONFIG_SND_BCM2708_SOC_RPI_CIRRUS) += snd-soc-rpi-cirrus.o + obj-$(CONFIG_SND_BCM2708_SOC_RPI_PROTO) += snd-soc-rpi-proto.o ++obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_CODEC) += snd-soc-iqaudio-codec.o + obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC) += snd-soc-iqaudio-dac.o + obj-$(CONFIG_SND_BCM2708_SOC_I_SABRE_Q2M) += snd-soc-i-sabre-q2m.o + obj-$(CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD) += snd-soc-audioinjector-pi-soundcard.o +--- /dev/null ++++ b/sound/soc/bcm/iqaudio-codec.c +@@ -0,0 +1,274 @@ ++/* ++ * ASoC Driver for IQaudIO Raspberry Pi Codec board ++ * ++ * Author: Gordon Garrity <gordon@iqaudio.com> ++ * (C) Copyright IQaudio Limited, 2017-2019 ++ * ++ * 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/gpio/consumer.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 <linux/acpi.h> ++#include <linux/slab.h> ++#include "../codecs/da7213.h" ++ ++static int pll_out = DA7213_PLL_FREQ_OUT_90316800; ++ ++static int snd_rpi_iqaudio_pll_control(struct snd_soc_dapm_widget *w, ++ struct snd_kcontrol *k, int event) ++{ ++ int ret = 0; ++ struct snd_soc_dapm_context *dapm = w->dapm; ++ struct snd_soc_card *card = dapm->card; ++ struct snd_soc_pcm_runtime *rtd = ++ snd_soc_get_pcm_runtime(card, card->dai_link[0].name); ++ struct snd_soc_dai *codec_dai = rtd->codec_dai; ++ ++ if (SND_SOC_DAPM_EVENT_OFF(event)) { ++ ret = snd_soc_dai_set_pll(codec_dai, 0, DA7213_SYSCLK_MCLK, 0, ++ 0); ++ if (ret) ++ dev_err(card->dev, "Failed to bypass PLL: %d\n", ret); ++ /* Allow PLL time to bypass */ ++ msleep(100); ++ } else if (SND_SOC_DAPM_EVENT_ON(event)) { ++ ret = snd_soc_dai_set_pll(codec_dai, 0, DA7213_SYSCLK_PLL, 0, ++ pll_out); ++ if (ret) ++ dev_err(card->dev, "Failed to enable PLL: %d\n", ret); ++ /* Allow PLL time to lock */ ++ msleep(100); ++ } ++ ++ return ret; ++} ++ ++static int snd_rpi_iqaudio_post_dapm_event(struct snd_soc_dapm_widget *w, ++ struct snd_kcontrol *kcontrol, ++ int event) ++{ ++ switch (event) { ++ case SND_SOC_DAPM_POST_PMU: ++ /* Delay for mic bias ramp */ ++ msleep(1000); ++ break; ++ default: ++ break; ++ } ++ ++ return 0; ++} ++ ++static const struct snd_kcontrol_new dapm_controls[] = { ++ SOC_DAPM_PIN_SWITCH("HP Jack"), ++ SOC_DAPM_PIN_SWITCH("MIC Jack"), ++ SOC_DAPM_PIN_SWITCH("Onboard MIC"), ++ SOC_DAPM_PIN_SWITCH("AUX Jack"), ++}; ++ ++static const struct snd_soc_dapm_widget dapm_widgets[] = { ++ SND_SOC_DAPM_HP("HP Jack", NULL), ++ SND_SOC_DAPM_MIC("MIC Jack", NULL), ++ SND_SOC_DAPM_MIC("Onboard MIC", NULL), ++ SND_SOC_DAPM_LINE("AUX Jack", NULL), ++ SND_SOC_DAPM_SUPPLY("PLL Control", SND_SOC_NOPM, 0, 0, ++ snd_rpi_iqaudio_pll_control, ++ SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), ++ SND_SOC_DAPM_POST("Post Power Up Event", snd_rpi_iqaudio_post_dapm_event), ++}; ++ ++static const struct snd_soc_dapm_route audio_map[] = { ++ {"HP Jack", NULL, "HPL"}, ++ {"HP Jack", NULL, "HPR"}, ++ {"HP Jack", NULL, "PLL Control"}, ++ ++ {"AUXR", NULL, "AUX Jack"}, ++ {"AUXL", NULL, "AUX Jack"}, ++ {"AUX Jack", NULL, "PLL Control"}, ++ ++ /* Assume Mic1 is linked to Headset and Mic2 to on-board mic */ ++ {"MIC1", NULL, "MIC Jack"}, ++ {"MIC Jack", NULL, "PLL Control"}, ++ {"MIC2", NULL, "Onboard MIC"}, ++ {"Onboard MIC", NULL, "PLL Control"}, ++}; ++ ++/* machine stream operations */ ++ ++static int snd_rpi_iqaudio_codec_init(struct snd_soc_pcm_runtime *rtd) ++{ ++ struct snd_soc_dai *codec_dai = rtd->codec_dai; ++ struct snd_soc_dai *cpu_dai = rtd->cpu_dai; ++ int ret; ++ ++ /* ++ * Disable AUX Jack Pin by default to prevent PLL being enabled at ++ * startup. This avoids holding the PLL to a fixed SR config for ++ * subsequent streams. ++ * ++ * This pin can still be enabled later, as required by user-space. ++ */ ++ snd_soc_dapm_disable_pin(&rtd->card->dapm, "AUX Jack"); ++ snd_soc_dapm_sync(&rtd->card->dapm); ++ ++ /* Set bclk ratio to align with codec's BCLK rate */ ++ ret = snd_soc_dai_set_bclk_ratio(cpu_dai, 64); ++ if (ret) { ++ dev_err(rtd->dev, "Failed to set CPU BLCK ratio\n"); ++ return ret; ++ } ++ ++ /* Set MCLK frequency to codec, onboard 11.2896MHz clock */ ++ return snd_soc_dai_set_sysclk(codec_dai, DA7213_CLKSRC_MCLK, 11289600, ++ SND_SOC_CLOCK_OUT); ++} ++ ++static int snd_rpi_iqaudio_codec_hw_params(struct snd_pcm_substream *substream, ++ struct snd_pcm_hw_params *params) ++{ ++ struct snd_soc_pcm_runtime *rtd = substream->private_data; ++ unsigned int samplerate = params_rate(params); ++ ++ switch (samplerate) { ++ case 8000: ++ case 16000: ++ case 32000: ++ case 48000: ++ case 96000: ++ pll_out = DA7213_PLL_FREQ_OUT_98304000; ++ return 0; ++ case 44100: ++ case 88200: ++ pll_out = DA7213_PLL_FREQ_OUT_90316800; ++ return 0; ++ default: ++ dev_err(rtd->dev,"Unsupported samplerate %d\n", samplerate); ++ return -EINVAL; ++ } ++} ++ ++static const struct snd_soc_ops snd_rpi_iqaudio_codec_ops = { ++ .hw_params = snd_rpi_iqaudio_codec_hw_params, ++}; ++ ++SND_SOC_DAILINK_DEFS(rpi_iqaudio, ++ DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")), ++ DAILINK_COMP_ARRAY(COMP_CODEC("da7213.1-001a", "da7213-hifi")), ++ DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2835-i2s.0"))); ++ ++static struct snd_soc_dai_link snd_rpi_iqaudio_codec_dai[] = { ++{ ++ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | ++ SND_SOC_DAIFMT_CBM_CFM, ++ .init = snd_rpi_iqaudio_codec_init, ++ .ops = &snd_rpi_iqaudio_codec_ops, ++ .symmetric_rates = 1, ++ .symmetric_channels = 1, ++ .symmetric_samplebits = 1, ++ SND_SOC_DAILINK_REG(rpi_iqaudio), ++}, ++}; ++ ++/* audio machine driver */ ++static struct snd_soc_card snd_rpi_iqaudio_codec = { ++ .owner = THIS_MODULE, ++ .dai_link = snd_rpi_iqaudio_codec_dai, ++ .num_links = ARRAY_SIZE(snd_rpi_iqaudio_codec_dai), ++ .controls = dapm_controls, ++ .num_controls = ARRAY_SIZE(dapm_controls), ++ .dapm_widgets = dapm_widgets, ++ .num_dapm_widgets = ARRAY_SIZE(dapm_widgets), ++ .dapm_routes = audio_map, ++ .num_dapm_routes = ARRAY_SIZE(audio_map), ++}; ++ ++static int snd_rpi_iqaudio_codec_probe(struct platform_device *pdev) ++{ ++ int ret = 0; ++ ++ snd_rpi_iqaudio_codec.dev = &pdev->dev; ++ ++ if (pdev->dev.of_node) { ++ struct device_node *i2s_node; ++ struct snd_soc_card *card = &snd_rpi_iqaudio_codec; ++ struct snd_soc_dai_link *dai = &snd_rpi_iqaudio_codec_dai[0]; ++ ++ i2s_node = of_parse_phandle(pdev->dev.of_node, ++ "i2s-controller", 0); ++ if (i2s_node) { ++ dai->cpus->dai_name = NULL; ++ dai->cpus->of_node = i2s_node; ++ dai->platforms->name = NULL; ++ dai->platforms->of_node = i2s_node; ++ } ++ ++ if (of_property_read_string(pdev->dev.of_node, "card_name", ++ &card->name)) ++ card->name = "IQaudIOCODEC"; ++ ++ if (of_property_read_string(pdev->dev.of_node, "dai_name", ++ &dai->name)) ++ dai->name = "IQaudIO CODEC"; ++ ++ if (of_property_read_string(pdev->dev.of_node, ++ "dai_stream_name", &dai->stream_name)) ++ dai->stream_name = "IQaudIO CODEC HiFi v1.2"; ++ ++ } ++ ++ ret = snd_soc_register_card(&snd_rpi_iqaudio_codec); ++ if (ret) { ++ if (ret != -EPROBE_DEFER) ++ dev_err(&pdev->dev, ++ "snd_soc_register_card() failed: %d\n", ret); ++ return ret; ++ } ++ ++ return 0; ++} ++ ++static int snd_rpi_iqaudio_codec_remove(struct platform_device *pdev) ++{ ++ return snd_soc_unregister_card(&snd_rpi_iqaudio_codec); ++} ++ ++static const struct of_device_id iqaudio_of_match[] = { ++ { .compatible = "iqaudio,iqaudio-codec", }, ++ {}, ++}; ++ ++MODULE_DEVICE_TABLE(of, iqaudio_of_match); ++ ++static struct platform_driver snd_rpi_iqaudio_codec_driver = { ++ .driver = { ++ .name = "snd-rpi-iqaudio-codec", ++ .owner = THIS_MODULE, ++ .of_match_table = iqaudio_of_match, ++ }, ++ .probe = snd_rpi_iqaudio_codec_probe, ++ .remove = snd_rpi_iqaudio_codec_remove, ++}; ++ ++ ++ ++module_platform_driver(snd_rpi_iqaudio_codec_driver); ++ ++MODULE_AUTHOR("Gordon Garrity <gordon@iqaudio.com>"); ++MODULE_DESCRIPTION("ASoC Driver for IQaudIO CODEC"); ++MODULE_LICENSE("GPL v2"); |