I2C Implementation (#84)

2024-11-24 18:04:57 +01:00
parent 881c8517bf
commit d8731eaa17
51 changed files with 936 additions and 433 deletions
@@ -0,0 +1,55 @@
+#include "TactilityCore.h"
+#include "config.h"
+#include "display.h"
+#include "keyboard.h"
+#include <driver/spi_common.h>
+
+#define TAG "tdeck"
+
+static bool init_i2c() {
+    const i2c_config_t i2c_conf = {
+        .mode = I2C_MODE_MASTER,
+        .sda_io_num = GPIO_NUM_18,
+        .scl_io_num = GPIO_NUM_8,
+        .sda_pullup_en = GPIO_PULLUP_DISABLE,
+        .scl_pullup_en = GPIO_PULLUP_DISABLE,
+        .master = {
+            .clk_speed = 400000
+        }
+    };
+
+    return i2c_param_config(TDECK_I2C_BUS_HANDLE, &i2c_conf) == ESP_OK && i2c_driver_install(TDECK_I2C_BUS_HANDLE, i2c_conf.mode, 0, 0, 0) == ESP_OK;
+}
+
+static bool init_spi() {
+    spi_bus_config_t bus_config = {
+        .mosi_io_num = TDECK_SPI_PIN_MOSI,
+        .miso_io_num = TDECK_SPI_PIN_MISO,
+        .sclk_io_num = TDECK_SPI_PIN_SCLK,
+        .quadwp_io_num = -1, // Quad SPI LCD driver is not yet supported
+        .quadhd_io_num = -1, // Quad SPI LCD driver is not yet supported
+        .max_transfer_sz = TDECK_SPI_TRANSFER_SIZE_LIMIT,
+    };
+
+    return spi_bus_initialize(TDECK_SPI_HOST, &bus_config, SPI_DMA_CH_AUTO) == ESP_OK;
+}
+
+bool tdeck_init_hardware() {
+    TT_LOG_I(TAG, "Init SPI");
+    if (!init_spi()) {
+        TT_LOG_E(TAG, "Init SPI failed");
+        return false;
+    }
+
+    // Don't turn the backlight on yet - Tactility init will take care of it
+    TT_LOG_I(TAG, "Init backlight");
+    if (!tdeck_backlight_init()) {
+        TT_LOG_E(TAG, "Init backlight failed");
+        return false;
+    }
+
+    // We wait for the keyboard peripheral to be booted up
+    keyboard_wait_for_response();
+
+    return true;
+}