X-Git-Url: http://git.openwrt.org/?a=blobdiff_plain;ds=sidebyside;f=target%2Flinux%2Fbcm27xx%2Fpatches-5.10%2F950-0723-ASoC-bcm-Add-chipdip-dac-driver.patch;fp=target%2Flinux%2Fbcm27xx%2Fpatches-5.10%2F950-0723-ASoC-bcm-Add-chipdip-dac-driver.patch;h=0000000000000000000000000000000000000000;hb=d5c4f24b2af991df2ec24df1a3f906049370f59f;hp=25dbc74d20e2265e6a4afc3b8edb5ac96f779738;hpb=99ad84b6d9727a63f99a16e0b8386747262e3433;p=openwrt%2Fstaging%2Fchunkeey.git diff --git a/target/linux/bcm27xx/patches-5.10/950-0723-ASoC-bcm-Add-chipdip-dac-driver.patch b/target/linux/bcm27xx/patches-5.10/950-0723-ASoC-bcm-Add-chipdip-dac-driver.patch deleted file mode 100644 index 25dbc74d20..0000000000 --- a/target/linux/bcm27xx/patches-5.10/950-0723-ASoC-bcm-Add-chipdip-dac-driver.patch +++ /dev/null @@ -1,325 +0,0 @@ -From e17c3e2ccb04657ca00984477854a6a700fef01d Mon Sep 17 00:00:00 2001 -From: "chipdip.lab" <43340836+chipdipru@users.noreply.github.com> -Date: Mon, 26 Jul 2021 14:45:59 +0300 -Subject: [PATCH] ASoC: bcm: Add chipdip-dac driver - -Driver chipdip-dac.c added into sound/soc/bcm/, files -sound/soc/bcm/Kconfig and sound/soc/bcm/Makefile updated. - -Signed-off-by: Evgenij Sapunov ---- - sound/soc/bcm/Kconfig | 6 + - sound/soc/bcm/Makefile | 3 +- - sound/soc/bcm/chipdip-dac.c | 275 ++++++++++++++++++++++++++++++++++++ - 3 files changed, 283 insertions(+), 1 deletion(-) - create mode 100644 sound/soc/bcm/chipdip-dac.c - ---- a/sound/soc/bcm/Kconfig -+++ b/sound/soc/bcm/Kconfig -@@ -27,6 +27,12 @@ config SND_BCM63XX_I2S_WHISTLER - - If you don't know what to do here, say N - -+config SND_BCM2708_SOC_CHIPDIP_DAC -+ tristate "Support for the ChipDip DAC" -+ depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S -+ help -+ Say Y or M if you want to add support for the ChipDip DAC soundcard -+ - config SND_BCM2708_SOC_GOOGLEVOICEHAT_SOUNDCARD - tristate "Support for Google voiceHAT soundcard" - depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S ---- a/sound/soc/bcm/Makefile -+++ b/sound/soc/bcm/Makefile -@@ -47,6 +47,7 @@ snd-soc-fe-pi-audio-objs := fe-pi-audio. - snd-soc-rpi-simple-soundcard-objs := rpi-simple-soundcard.o - snd-soc-rpi-wm8804-soundcard-objs := rpi-wm8804-soundcard.o - snd-soc-pifi-40-objs := pifi-40.o -+snd-soc-chipdip-dac-objs := chipdip-dac.o - - obj-$(CONFIG_SND_BCM2708_SOC_GOOGLEVOICEHAT_SOUNDCARD) += snd-soc-googlevoicehat-codec.o - obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS) += snd-soc-hifiberry-dacplus.o -@@ -78,4 +79,4 @@ obj-$(CONFIG_SND_BCM2708_SOC_FE_PI_AUDIO - obj-$(CONFIG_SND_RPI_SIMPLE_SOUNDCARD) += snd-soc-rpi-simple-soundcard.o - obj-$(CONFIG_SND_RPI_WM8804_SOUNDCARD) += snd-soc-rpi-wm8804-soundcard.o - obj-$(CONFIG_SND_BCM2708_SOC_PIFI_40) += snd-soc-pifi-40.o -- -+obj-$(CONFIG_SND_BCM2708_SOC_CHIPDIP_DAC) += snd-soc-chipdip-dac.o ---- /dev/null -+++ b/sound/soc/bcm/chipdip-dac.c -@@ -0,0 +1,275 @@ -+/* -+ * ASoC Driver for ChipDip DAC -+ * -+ * Author: Evgenij Sapunov -+ * Copyright 2021 -+ * based on code by Milan Neskovic -+ * based on code by Jaikumar -+ * -+ * Thanks to Phil Elwell (pelwell) for help. -+ * -+ * 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 -+#include -+#include -+#include -+ -+#include -+#include -+#include -+#include -+#include -+ -+#define SR_BIT_0 0 //sample rate bits -+#define SR_BIT_1 1 -+#define SR_BIT_2 2 -+#define BD_BIT_0 3 //bit depth bits -+#define BD_BIT_1 4 -+ -+#define SAMPLE_RATE_MASK_44_1 0 -+#define SAMPLE_RATE_MASK_48 (1 << SR_BIT_0) -+#define SAMPLE_RATE_MASK_88_2 ((1 << SR_BIT_2) | (1 << SR_BIT_1)) -+#define SAMPLE_RATE_MASK_96 (1 << SR_BIT_1) -+#define SAMPLE_RATE_MASK_176_4 ((1 << SR_BIT_2) | (1 << SR_BIT_1) | (1 << SR_BIT_0)) -+#define SAMPLE_RATE_MASK_192 ((1 << SR_BIT_1) | (1 << SR_BIT_0)) -+#define SAMPLE_RATE_MASK ((1 << SR_BIT_2) | (1 << SR_BIT_1) | (1 << SR_BIT_0)) -+ -+#define BIT_DEPTH_MASK_16 0 -+#define BIT_DEPTH_MASK_24 (1 << BD_BIT_0) -+#define BIT_DEPTH_MASK_32 (1 << BD_BIT_1) -+#define BIT_DEPTH_MASK ((1 << BD_BIT_1) | (1 << BD_BIT_0)) -+ -+#define MUTE_ACTIVE 0 -+#define MUTE_NOT_ACTIVE 1 -+ -+#define HW_PARAMS_GPIO_COUNT 5 -+ -+static struct gpio_desc *mute_gpio; -+static struct gpio_desc *sdwn_gpio; -+static struct gpio_desc *hw_params_gpios[HW_PARAMS_GPIO_COUNT]; -+static int current_width; -+static int current_rate; -+ -+static void snd_rpi_chipdip_dac_gpio_array_set(int value); -+static void snd_rpi_chipdip_dac_gpio_set(struct gpio_desc *gpio_item, int value); -+ -+static void snd_rpi_chipdip_dac_gpio_array_set(int value) -+{ -+ int i = 0; -+ -+ for (i = 0; i < HW_PARAMS_GPIO_COUNT; i++) -+ snd_rpi_chipdip_dac_gpio_set(hw_params_gpios[i], ((value >> i) & 1)); -+} -+ -+static void snd_rpi_chipdip_dac_gpio_set(struct gpio_desc *gpio_item, int value) -+{ -+ if (gpio_item) -+ gpiod_set_value_cansleep(gpio_item, value); -+} -+ -+static int snd_rpi_chipdip_dac_init(struct snd_soc_pcm_runtime *rtd) -+{ -+ return 0; -+} -+ -+static int snd_rpi_chipdip_dac_hw_params(struct snd_pcm_substream *substream, -+ struct snd_pcm_hw_params *params) -+{ -+ int ret = 0; -+ int gpio_change_pending = 0; -+ int sample_rate_state = 0; -+ int bit_depth_state = 0; -+ int param_value = params_width(params); -+ struct snd_soc_pcm_runtime *rtd = substream->private_data; -+ -+ ret = snd_soc_dai_set_bclk_ratio(asoc_rtd_to_cpu(rtd, 0), 2 * 32); -+ -+ if (current_width != param_value) { -+ current_width = param_value; -+ gpio_change_pending = 1; -+ -+ switch (param_value) { -+ case 16: -+ bit_depth_state = BIT_DEPTH_MASK_16; -+ break; -+ case 24: -+ bit_depth_state = BIT_DEPTH_MASK_24; -+ break; -+ case 32: -+ bit_depth_state = BIT_DEPTH_MASK_32; -+ break; -+ default: -+ return -EINVAL; -+ } -+ } -+ -+ param_value = params_rate(params); -+ if (current_rate != param_value) { -+ current_rate = param_value; -+ gpio_change_pending = 1; -+ -+ switch (param_value) { -+ case 44100: -+ sample_rate_state = SAMPLE_RATE_MASK_44_1; -+ break; -+ case 48000: -+ sample_rate_state = SAMPLE_RATE_MASK_48; -+ break; -+ case 88200: -+ sample_rate_state = SAMPLE_RATE_MASK_88_2; -+ break; -+ case 96000: -+ sample_rate_state = SAMPLE_RATE_MASK_96; -+ break; -+ case 176400: -+ sample_rate_state = SAMPLE_RATE_MASK_176_4; -+ break; -+ case 192000: -+ sample_rate_state = SAMPLE_RATE_MASK_192; -+ break; -+ default: -+ return -EINVAL; -+ } -+ } -+ -+ if (gpio_change_pending) { -+ snd_rpi_chipdip_dac_gpio_set(mute_gpio, MUTE_ACTIVE); -+ snd_rpi_chipdip_dac_gpio_array_set(bit_depth_state | sample_rate_state); -+ msleep(300); -+ snd_rpi_chipdip_dac_gpio_set(mute_gpio, MUTE_NOT_ACTIVE); -+ } -+ -+ return ret; -+} -+ -+static int snd_rpi_chipdip_dac_startup(struct snd_pcm_substream *substream) -+{ -+ return 0; -+} -+ -+static void snd_rpi_chipdip_dac_shutdown(struct snd_pcm_substream *substream) -+{ -+ -+} -+ -+/* machine stream operations */ -+static struct snd_soc_ops snd_rpi_chipdip_dac_ops = { -+ .hw_params = snd_rpi_chipdip_dac_hw_params, -+ .startup = snd_rpi_chipdip_dac_startup, -+ .shutdown = snd_rpi_chipdip_dac_shutdown, -+}; -+ -+SND_SOC_DAILINK_DEFS(hifi, -+ DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")), -+ DAILINK_COMP_ARRAY(COMP_CODEC("spdif-transmitter", "dit-hifi")), -+ DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0"))); -+ -+static struct snd_soc_dai_link snd_rpi_chipdip_dac_dai[] = { -+{ -+ .name = "ChipDip DAC", -+ .stream_name = "ChipDip DAC HiFi", -+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | -+ SND_SOC_DAIFMT_CBM_CFM, -+ .ops = &snd_rpi_chipdip_dac_ops, -+ .init = snd_rpi_chipdip_dac_init, -+ SND_SOC_DAILINK_REG(hifi), -+}, -+}; -+ -+/* audio machine driver */ -+static struct snd_soc_card snd_rpi_chipdip_dac = { -+ .name = "ChipDipDAC", -+ .driver_name = "ChipdipDac", -+ .owner = THIS_MODULE, -+ .dai_link = snd_rpi_chipdip_dac_dai, -+ .num_links = ARRAY_SIZE(snd_rpi_chipdip_dac_dai), -+}; -+ -+static int snd_rpi_chipdip_dac_probe(struct platform_device *pdev) -+{ -+ int ret = 0; -+ int i = 0; -+ -+ snd_rpi_chipdip_dac.dev = &pdev->dev; -+ -+ if (pdev->dev.of_node) { -+ struct device_node *i2s_node; -+ struct snd_soc_dai_link *dai = &snd_rpi_chipdip_dac_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; -+ } -+ } -+ -+ hw_params_gpios[SR_BIT_0] = devm_gpiod_get_optional(&pdev->dev, "sr0", GPIOD_OUT_LOW); -+ hw_params_gpios[SR_BIT_1] = devm_gpiod_get_optional(&pdev->dev, "sr1", GPIOD_OUT_LOW); -+ hw_params_gpios[SR_BIT_2] = devm_gpiod_get_optional(&pdev->dev, "sr2", GPIOD_OUT_LOW); -+ hw_params_gpios[BD_BIT_0] = devm_gpiod_get_optional(&pdev->dev, "res0", GPIOD_OUT_LOW); -+ hw_params_gpios[BD_BIT_1] = devm_gpiod_get_optional(&pdev->dev, "res1", GPIOD_OUT_LOW); -+ mute_gpio = devm_gpiod_get_optional(&pdev->dev, "mute", GPIOD_OUT_LOW); -+ sdwn_gpio = devm_gpiod_get_optional(&pdev->dev, "sdwn", GPIOD_OUT_HIGH); -+ -+ for (i = 0; i < HW_PARAMS_GPIO_COUNT; i++) { -+ if (IS_ERR(hw_params_gpios[i])) { -+ ret = PTR_ERR(hw_params_gpios[i]); -+ dev_err(&pdev->dev, "failed to get hw_params gpio: %d\n", ret); -+ return ret; -+ } -+ } -+ -+ if (IS_ERR(mute_gpio)) { -+ ret = PTR_ERR(mute_gpio); -+ dev_err(&pdev->dev, "failed to get mute gpio: %d\n", ret); -+ return ret; -+ } -+ -+ if (IS_ERR(sdwn_gpio)) { -+ ret = PTR_ERR(sdwn_gpio); -+ dev_err(&pdev->dev, "failed to get sdwn gpio: %d\n", ret); -+ return ret; -+ } -+ -+ snd_rpi_chipdip_dac_gpio_set(sdwn_gpio, 1); -+ -+ ret = devm_snd_soc_register_card(&pdev->dev, &snd_rpi_chipdip_dac); -+ if (ret && ret != -EPROBE_DEFER) -+ dev_err(&pdev->dev, -+ "snd_soc_register_card() failed: %d\n", ret); -+ -+ return ret; -+} -+ -+static const struct of_device_id snd_rpi_chipdip_dac_of_match[] = { -+ { .compatible = "chipdip,chipdip-dac", }, -+ {}, -+}; -+MODULE_DEVICE_TABLE(of, snd_rpi_chipdip_dac_of_match); -+ -+static struct platform_driver snd_rpi_chipdip_dac_driver = { -+ .driver = { -+ .name = "snd-rpi-chipdip-dac", -+ .owner = THIS_MODULE, -+ .of_match_table = snd_rpi_chipdip_dac_of_match, -+ }, -+ .probe = snd_rpi_chipdip_dac_probe, -+}; -+ -+module_platform_driver(snd_rpi_chipdip_dac_driver); -+ -+MODULE_AUTHOR("Evgenij Sapunov "); -+MODULE_DESCRIPTION("ASoC Driver for ChipDip DAC"); -+MODULE_LICENSE("GPL v2");