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I2S driver implementation (#480)

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* **New Features**
  * ESP32 I2S controller support: runtime-configurable digital audio I/O with read/write/set/get operations and multiple formats.

* **Board Support**
  * LilyGO T-Deck device tree entry added to enable I2S peripheral pin configuration.

* **Documentation**
  * New/updated bindings and descriptors for I2S, I2C, GPIO, and root nodes.

* **Other**
  * Added GPIO "no pin" sentinel and exposed I2S controller API symbols.
This commit is contained in:
Ken Van Hoeylandt
2026-02-04 23:40:16 +01:00
committed by GitHub
parent 9a672a30ff
commit a1c835e073
18 changed files with 526 additions and 5 deletions
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Platforms/PlatformEsp32/Source/module.cpp
+3
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@@ -6,12 +6,14 @@ extern "C" {
extern Driver esp32_gpio_driver;
extern Driver esp32_i2c_driver;
extern Driver esp32_i2s_driver;
static error_t start() {
/* We crash when construct fails, because if a single driver fails to construct,
* there is no guarantee that the previously constructed drivers can be destroyed */
check(driver_construct_add(&esp32_gpio_driver) == ERROR_NONE);
check(driver_construct_add(&esp32_i2c_driver) == ERROR_NONE);
check(driver_construct_add(&esp32_i2s_driver) == ERROR_NONE);
return ERROR_NONE;
}
@@ -20,6 +22,7 @@ static error_t stop() {
* there is no guarantee that the previously destroyed drivers can be recovered */
check(driver_remove_destruct(&esp32_gpio_driver) == ERROR_NONE);
check(driver_remove_destruct(&esp32_i2c_driver) == ERROR_NONE);
check(driver_remove_destruct(&esp32_i2s_driver) == ERROR_NONE);
return ERROR_NONE;
}