Ken Van Hoeylandt d2048e01b6
Tab5 power expander driver and devicetree parsing improvements (#507)
* **New Features**
  * PI4IOE5V6408 I2C I/O expander driver with public GPIO APIs
  * CLI tool to list devicetree dependencies

* **Device Tree Updates**
  * M5Stack Tab5 configured with two I2C IO expanders; PI4IOE5V6408 binding added

* **Build / Tooling**
  * Devicetree code generation integrated into build; generated artifacts and dynamic dependency resolution exposed

* **Refactor**
  * Kernel/run APIs updated to accept a null‑terminated devicetree modules array; many module symbols renamed

* **Documentation**
  * Added README and Apache‑2.0 license for new driver module
2026-02-17 22:59:30 +01:00

44 lines
1.5 KiB
C++

#include <tactility/check.h>
#include <tactility/driver.h>
#include <tactility/module.h>
extern "C" {
extern Driver esp32_gpio_driver;
extern Driver esp32_i2c_driver;
extern Driver esp32_i2s_driver;
extern Driver esp32_spi_driver;
extern Driver esp32_uart_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);
check(driver_construct_add(&esp32_spi_driver) == ERROR_NONE);
check(driver_construct_add(&esp32_uart_driver) == ERROR_NONE);
return ERROR_NONE;
}
static error_t stop() {
/* We crash when destruct fails, because if a single driver fails to destruct,
* 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);
check(driver_remove_destruct(&esp32_spi_driver) == ERROR_NONE);
check(driver_remove_destruct(&esp32_uart_driver) == ERROR_NONE);
return ERROR_NONE;
}
struct Module platform_esp32_module = {
.name = "platform-esp32",
.start = start,
.stop = stop,
.symbols = nullptr,
.internal = nullptr
};
}