197 lines
5.8 KiB
Diff
197 lines
5.8 KiB
Diff
From fb21611efd7cd916646d9ab2988c3af08f139761 Mon Sep 17 00:00:00 2001
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From: Ben Payne <ben@bluerocksoft.com>
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Date: Tue, 13 Feb 2024 14:55:14 -0800
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Subject: [PATCH 1276/1295] Impliment driver support for Interlude Audio
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Digital Hat
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Implementing driver support for
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Interlude audio's WM8805 based digital hat
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by leveraging existing drivers
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---
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sound/soc/bcm/rpi-wm8804-soundcard.c | 139 +++++++++++++++++++++++++++
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1 file changed, 139 insertions(+)
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--- a/sound/soc/bcm/rpi-wm8804-soundcard.c
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+++ b/sound/soc/bcm/rpi-wm8804-soundcard.c
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@@ -34,6 +34,7 @@
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#include <linux/gpio/consumer.h>
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#include <linux/platform_device.h>
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#include <linux/module.h>
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+#include <linux/delay.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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@@ -65,6 +66,10 @@ struct snd_rpi_wm8804_drvdata {
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static struct gpio_desc *snd_clk44gpio;
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static struct gpio_desc *snd_clk48gpio;
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static int wm8804_samplerate = 0;
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+static struct gpio_desc *led_gpio_1;
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+static struct gpio_desc *led_gpio_2;
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+static struct gpio_desc *led_gpio_3;
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+static struct gpio_desc *custom_reset;
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/* Forward declarations */
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static struct snd_soc_dai_link snd_allo_digione_dai[];
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@@ -74,6 +79,37 @@ static struct snd_soc_card snd_rpi_wm880
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#define CLK_44EN_RATE 22579200UL
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#define CLK_48EN_RATE 24576000UL
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+static const char * const wm8805_input_select_text[] = {
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+ "Rx 0",
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+ "Rx 1",
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+ "Rx 2",
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+ "Rx 3",
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+ "Rx 4",
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+ "Rx 5",
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+ "Rx 6",
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+ "Rx 7"
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+};
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+
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+static const unsigned int wm8805_input_channel_select_value[] = {
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+ 0, 1, 2, 3, 4, 5, 6, 7
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+};
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+
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+static const struct soc_enum wm8805_input_channel_sel[] = {
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+ SOC_VALUE_ENUM_SINGLE(WM8804_PLL6, 0, 7, ARRAY_SIZE(wm8805_input_select_text),
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+ wm8805_input_select_text, wm8805_input_channel_select_value),
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+};
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+
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+static const struct snd_kcontrol_new wm8805_input_controls_card[] = {
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+ SOC_ENUM("Select Input Channel", wm8805_input_channel_sel[0]),
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+};
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+
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+static int wm8805_add_input_controls(struct snd_soc_component *component)
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+{
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+ snd_soc_add_component_controls(component, wm8805_input_controls_card,
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+ ARRAY_SIZE(wm8805_input_controls_card));
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+ return 0;
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+}
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+
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static unsigned int snd_rpi_wm8804_enable_clock(unsigned int samplerate)
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{
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switch (samplerate) {
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@@ -187,6 +223,53 @@ static struct snd_soc_ops snd_rpi_wm8804
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.hw_params = snd_rpi_wm8804_hw_params,
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};
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+static int snd_interlude_audio_hw_params(struct snd_pcm_substream *substream,
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+ struct snd_pcm_hw_params *params)
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+{
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+ int ret = snd_rpi_wm8804_hw_params(substream, params);
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+ int samplerate = params_rate(params);
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+
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+ switch (samplerate) {
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+ case 44100:
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+ gpiod_set_value_cansleep(led_gpio_1, 1);
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+ gpiod_set_value_cansleep(led_gpio_2, 0);
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+ gpiod_set_value_cansleep(led_gpio_3, 0);
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+ break;
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+ case 48000:
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+ gpiod_set_value_cansleep(led_gpio_1, 1);
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+ gpiod_set_value_cansleep(led_gpio_2, 0);
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+ gpiod_set_value_cansleep(led_gpio_3, 0);
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+ break;
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+ case 88200:
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+ gpiod_set_value_cansleep(led_gpio_1, 0);
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+ gpiod_set_value_cansleep(led_gpio_2, 1);
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+ gpiod_set_value_cansleep(led_gpio_3, 0);
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+ break;
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+ case 96000:
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+ gpiod_set_value_cansleep(led_gpio_1, 0);
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+ gpiod_set_value_cansleep(led_gpio_2, 1);
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+ gpiod_set_value_cansleep(led_gpio_3, 0);
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+ break;
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+ case 176400:
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+ gpiod_set_value_cansleep(led_gpio_1, 0);
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+ gpiod_set_value_cansleep(led_gpio_2, 0);
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+ gpiod_set_value_cansleep(led_gpio_3, 1);
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+ break;
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+ case 192000:
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+ gpiod_set_value_cansleep(led_gpio_1, 0);
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+ gpiod_set_value_cansleep(led_gpio_2, 0);
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+ gpiod_set_value_cansleep(led_gpio_3, 1);
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+ break;
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+ default:
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+ break;
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+ }
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+ return ret;
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+}
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+
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+const struct snd_soc_ops interlude_audio_digital_dai_ops = {
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+ .hw_params = snd_interlude_audio_hw_params,
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+};
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+
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SND_SOC_DAILINK_DEFS(justboom_digi,
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DAILINK_COMP_ARRAY(COMP_EMPTY()),
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DAILINK_COMP_ARRAY(COMP_EMPTY()),
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@@ -287,6 +370,60 @@ static struct snd_rpi_wm8804_drvdata drv
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.probe = snd_hifiberry_digi_probe,
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};
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+SND_SOC_DAILINK_DEFS(interlude_audio_digital,
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+ DAILINK_COMP_ARRAY(COMP_EMPTY()),
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+ DAILINK_COMP_ARRAY(COMP_EMPTY()),
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+ DAILINK_COMP_ARRAY(COMP_EMPTY()));
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+
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+static int snd_interlude_audio_init(struct snd_soc_pcm_runtime *rtd)
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+{
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+ struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
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+ int ret;
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+
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+ ret = wm8805_add_input_controls(component);
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+ if (ret != 0)
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+ pr_err("failed to add input controls");
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+
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+ return 0;
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+}
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+
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+
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+static struct snd_soc_dai_link snd_interlude_audio_digital_dai[] = {
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+{
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+ .name = "Interlude Audio Digital",
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+ .stream_name = "Interlude Audio Digital HiFi",
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+ .init = snd_interlude_audio_init,
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+ .ops = &interlude_audio_digital_dai_ops,
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+ SND_SOC_DAILINK_REG(interlude_audio_digital),
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+},
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+};
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+
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+
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+static int snd_interlude_audio_digital_probe(struct platform_device *pdev)
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+{
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+ if (IS_ERR(snd_clk44gpio) || IS_ERR(snd_clk48gpio))
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+ return 0;
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+
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+ custom_reset = devm_gpiod_get(&pdev->dev, "reset", GPIOD_OUT_LOW);
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+ gpiod_set_value_cansleep(custom_reset, 0);
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+ mdelay(10);
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+ gpiod_set_value_cansleep(custom_reset, 1);
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+
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+ snd_interlude_audio_digital_dai->name = "Interlude Audio Digital";
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+ snd_interlude_audio_digital_dai->stream_name = "Interlude Audio Digital HiFi";
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+ led_gpio_1 = devm_gpiod_get(&pdev->dev, "led1", GPIOD_OUT_LOW);
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+ led_gpio_2 = devm_gpiod_get(&pdev->dev, "led2", GPIOD_OUT_LOW);
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+ led_gpio_3 = devm_gpiod_get(&pdev->dev, "led3", GPIOD_OUT_LOW);
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+ return 0;
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+}
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+
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+
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+static struct snd_rpi_wm8804_drvdata drvdata_interlude_audio_digital = {
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+ .card_name = "snd_IA_Digital_Hat",
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+ .dai = snd_interlude_audio_digital_dai,
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+ .probe = snd_interlude_audio_digital_probe,
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+};
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+
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static const struct of_device_id snd_rpi_wm8804_of_match[] = {
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{ .compatible = "justboom,justboom-digi",
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.data = (void *) &drvdata_justboom_digi },
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@@ -296,6 +433,8 @@ static const struct of_device_id snd_rpi
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.data = (void *) &drvdata_allo_digione },
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{ .compatible = "hifiberry,hifiberry-digi",
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.data = (void *) &drvdata_hifiberry_digi },
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+ { .compatible = "interludeaudio,interludeaudio-digital",
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+ .data = (void *) &drvdata_interlude_audio_digital },
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{},
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};
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