M5Stack Core2 support (#48)

2024-02-22 18:26:11 +01:00
parent 473fb673bd
commit d58f131033
23 changed files with 566 additions and 10 deletions
@@ -0,0 +1,105 @@
+#include "bootstrap.h"
+
+#include "M5Unified.hpp"
+#include "config.h"
+#include "log.h"
+
+m5::IMU_Class& Imu = M5.Imu;
+m5::Power_Class& Power = M5.Power;
+m5::RTC8563_Class& Rtc = M5.Rtc;
+m5::Touch_Class& Touch = M5.Touch;
+
+m5::Speaker_Class& Speaker = M5.Speaker;
+
+m5::Button_Class& BtnPWR = M5.BtnPWR;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define TAG "core2_bootstrap"
+
+static bool init_i2c() {
+    const i2c_config_t i2c_conf = {
+        .mode = I2C_MODE_MASTER,
+        .sda_io_num = CORE2_I2C_PIN_SDA,
+        .scl_io_num = CORE2_I2C_PIN_SCL,
+        .sda_pullup_en = GPIO_PULLUP_DISABLE,
+        .scl_pullup_en = GPIO_PULLUP_DISABLE,
+        .master = {
+            .clk_speed = 100000
+        },
+        .clk_flags = 0
+    };
+
+    if (i2c_param_config(CORE2_TOUCH_I2C_PORT, &i2c_conf) != ESP_OK) {
+        TT_LOG_E(TAG, "i2c config failed");
+        return false;
+    }
+
+    if (i2c_driver_install(CORE2_TOUCH_I2C_PORT, i2c_conf.mode, 0, 0, 0) != ESP_OK) {
+        TT_LOG_E(TAG, "i2c driver install failed");
+        return false;
+    }
+
+    return true;
+}
+
+static bool init_spi2() {
+    const spi_bus_config_t bus_config = {
+        .mosi_io_num = CORE2_SPI2_PIN_MOSI,
+        .miso_io_num = CORE2_SPI2_PIN_MISO,
+        .sclk_io_num = CORE2_SPI2_PIN_SCLK,
+        .data2_io_num = GPIO_NUM_NC,
+        .data3_io_num = GPIO_NUM_NC,
+        .data4_io_num = GPIO_NUM_NC,
+        .data5_io_num = GPIO_NUM_NC,
+        .data6_io_num = GPIO_NUM_NC,
+        .data7_io_num = GPIO_NUM_NC,
+        .max_transfer_sz = CORE2_SPI2_TRANSACTION_LIMIT,
+        .flags = 0,
+        .isr_cpu_id = INTR_CPU_ID_AUTO,
+        .intr_flags = 0
+    };
+
+    if (spi_bus_initialize(SPI2_HOST, &bus_config, SPI_DMA_CH_AUTO) != ESP_OK) {
+        TT_LOG_E(TAG, "SPI bus init failed");
+        return false;
+    }
+
+    return true;
+}
+
+static void log_power_status() {
+    TT_LOG_I(
+        TAG,
+        "Battery: level = %ld, voltage = %.1f, charging = %s",
+        M5.Power.getBatteryLevel(),
+        (float)M5.Power.getBatteryVoltage() / 1000.0f,
+        M5.Power.isCharging() ? "true" : "false"
+    );
+}
+
+bool core2_bootstrap() {
+    TT_LOG_I(TAG, "Initializing M5Unified");
+    M5.begin();
+    // For models with EPD : refresh control
+    M5.Display.setEpdMode(epd_mode_t::epd_fastest); // fastest but very-low quality.
+    log_power_status();
+
+    TT_LOG_I(TAG, "Initializing I2C");
+    if (!init_i2c()) {
+        return false;
+    }
+
+    TT_LOG_I(TAG, "Initializing SPI");
+    if (!init_spi2()) {
+        return false;
+    }
+
+    return true;
+}
+
+#ifdef __cplusplus
+}
+#endif