Create GPIO HAL (#344)

Tactility/Include/Tactility/hal/Gpio.h

@@ -1,7 +0,0 @@
-#pragma once
-
-#ifdef ESP_PLATFORM
-#include <driver/gpio.h>
-#else
-typedef unsigned int gpio_num_t;
-#endif

Tactility/Include/Tactility/hal/gpio/Gpio.h

@@ -0,0 +1,34 @@
+#pragma once
+
+#include <cstdint>
+
+namespace tt::hal::gpio {
+
+typedef unsigned int Pin;
+constexpr Pin NO_PIN = -1;
+
+/** @warning The order must match GpioMode from tt_hal_gpio.h */
+enum class Mode {
+    Disable = 0,
+    Input,
+    Output,
+    OutputOpenDrain,
+    InputOutput,
+    InputOutputOpenDrain
+};
+
+/** Configure a single pin */
+bool configure(Pin pin, Mode mode, bool pullUp, bool pullDown);
+
+/** Configure a set of pins defined by their bit index */
+bool configureWithPinBitmask(uint64_t pinBitMask, Mode mode, bool pullUp, bool pullDown);
+
+bool setMode(Pin pin, Mode mode);
+
+bool getLevel(Pin pin);
+
+bool setLevel(Pin pin, bool level);
+
+int getPinCount();
+
+}

Tactility/Include/Tactility/hal/spi/SpiCompat.h

@@ -1,6 +1,6 @@
 #pragma once
 
-#include "../Gpio.h"
+#include "../gpio/Gpio.h"
 
 #ifdef ESP_PLATFORM
 #include <driver/spi_common.h>
@@ -8,6 +8,8 @@
 
 #define SPI_HOST_MAX 3
 
+typedef tt::hal::gpio::Pin gpio_num_t;
+
 typedef int spi_host_device_t;
 struct spi_bus_config_t {
     gpio_num_t miso_io_num;

Tactility/Include/Tactility/hal/uart/Uart.h

@@ -2,7 +2,7 @@
 
 #include <Tactility/RtosCompat.h>
 
-#include "../Gpio.h"
+#include "../gpio/Gpio.h"
 #include "Tactility/Lock.h"
 #include "UartCompat.h"
 #include "Tactility/hal/uart/Configuration.h"