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Audio System + Drivers (#562)

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This commit is contained in:
Shadowtrance
2026-07-14 16:34:29 +10:00
committed by GitHub
parent fa4a6e255c
commit 955416dac8
137 changed files with 8847 additions and 387 deletions
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Devices/m5stack-stackchan/m5stack,stackchan.dts
+44 -14
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@@ -13,6 +13,9 @@
#include <bindings/bm8563.h>
#include <bindings/ina226.h>
#include <bindings/py32ioexpander.h>
#include <bindings/aw9523b.h>
#include <bindings/aw88298.h>
#include <bindings/es7210.h>
#include <tactility/bindings/esp32_sdspi.h>
#include <tactility/bindings/display_placeholder.h>
@@ -36,6 +39,17 @@
gpio-count = <49>;
};
// AW88298 speaker + ES7210 microphone
i2s0: i2s0 {
compatible = "espressif,esp32-i2s";
port = <I2S_NUM_0>;
pin-bclk = <&gpio0 34 GPIO_FLAG_NONE>;
pin-ws = <&gpio0 33 GPIO_FLAG_NONE>;
pin-data-out = <&gpio0 13 GPIO_FLAG_NONE>;
pin-data-in = <&gpio0 14 GPIO_FLAG_NONE>;
pin-mclk = <&gpio0 0 GPIO_FLAG_NONE>;
};
i2c_internal {
compatible = "espressif,esp32-i2c";
port = <I2C_NUM_0>;
@@ -65,10 +79,37 @@
shunt-milliohms = <10>;
};
// AW9523B pin map (same wiring as CoreS3):
// P0_0 = touch reset, P0_1 = bus-out enable, P0_2 = AW88298 reset,
// P0_4 = SD card switch, P1_1 = LCD reset, P1_7 = boost enable (SY7088)
aw9523b: aw9523b {
compatible = "awinic,aw9523b";
reg = <0x58>;
};
aw88298 {
compatible = "awinic,aw88298";
reg = <0x36>;
i2s = <&i2s0>;
pin-reset = <&aw9523b 2 GPIO_FLAG_NONE>;
};
es7210 {
compatible = "everest,es7210";
reg = <0x40>;
i2s = <&i2s0>;
// Only MIC1/MIC2 are wired to real capsules (see schematic); MIC3/MIC4
// slots carry AEC_P/AEC_N reference signal, not microphone audio.
mic-mask = <3>;
// M5Unified applies a 4x post-gain "magnification" for this exact mic
// wiring (see M5Unified.cpp _mic_data_cb_cores3): the ES7210's own
// hardware ADC gain (already near-max via the default 90% input volume
// setting, ~34dB of its 0-37.5dB range) still isn't enough for these
// capsules on their own.
input-gain-percent = <400>;
};
// AXP2101 PMIC @ 0x34 — initialized manually in initBoot()
// AW9523B GPIO expander @ 0x58 — initialized manually in initBoot() (same as CoreS3)
// AW88298 speaker amp @ 0x36 — initialized manually in initBoot()
// ES7210 microphone ADC @ 0x40 — initialized manually in initBoot()
// FT6336U capacitive touch @ 0x38 — used by Display driver (FT6x36 library)
// TODO: Si12T 3-zone head touch @ 0x68 — INT active-low, 10kΩ pull-up to 3.3V; driver not yet implemented
@@ -135,15 +176,4 @@
frequency-khz = <20000>;
};
};
// AW88298 speaker + ES7210 microphone
i2s0 {
compatible = "espressif,esp32-i2s";
port = <I2S_NUM_0>;
pin-bclk = <&gpio0 34 GPIO_FLAG_NONE>;
pin-ws = <&gpio0 33 GPIO_FLAG_NONE>;
pin-data-out = <&gpio0 13 GPIO_FLAG_NONE>;
pin-data-in = <&gpio0 14 GPIO_FLAG_NONE>;
pin-mclk = <&gpio0 0 GPIO_FLAG_NONE>;
};
};