M5stack CoreS3 support (#71)

boards/m5stack_cores3/CMakeLists.txt

@@ -0,0 +1,6 @@
+idf_component_register(
+    SRC_DIRS "source"
+    INCLUDE_DIRS "include"
+    PRIV_INCLUDE_DIRS "private"
+    REQUIRES tactility m5stack_shared vfs fatfs M5Unified
+)

boards/m5stack_cores3/include/m5stack_cores3.h

@@ -0,0 +1,13 @@
+#pragma once
+
+#include "hardware_config.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern const HardwareConfig m5stack_cores3;
+
+#ifdef __cplusplus
+}
+#endif

boards/m5stack_cores3/private/config.h

@@ -0,0 +1,13 @@
+#pragma once
+
+#include "driver/spi_common.h"
+#include "driver/gpio.h"
+
+// SD Card
+#define CORES3_SDCARD_SPI_HOST SPI2_HOST
+#define CORES3_SDCARD_PIN_CS GPIO_NUM_4
+#define CORES3_SDCARD_SPI_FREQUENCY 800000U
+#define CORES3_SDCARD_FORMAT_ON_MOUNT_FAILED false
+#define CORES3_SDCARD_MAX_OPEN_FILES 4
+#define CORES3_SDCARD_ALLOC_UNIT_SIZE (16 * 1024)
+#define CORES3_SDCARD_STATUS_CHECK_ENABLED false

boards/m5stack_cores3/source/m5stack_cores3.c

@@ -0,0 +1,12 @@
+#include "m5stack_cores3.h"
+#include "m5stack_shared.h"
+
+const HardwareConfig m5stack_cores3 = {
+    .bootstrap = &m5stack_bootstrap,
+    .display = {
+        .set_backlight_duty = NULL
+    },
+    .init_graphics = &m5stack_lvgl_init,
+    .sdcard = &m5stack_sdcard,
+    .power = &m5stack_power
+};

boards/m5stack_cores3/source/m5stack_sdcard.c

@@ -0,0 +1,79 @@
+#include "sdcard.h"
+#include "check.h"
+#include "log.h"
+#include "config.h"
+
+#include "esp_vfs_fat.h"
+#include "sdmmc_cmd.h"
+
+#define TAG "m5stack_cores3_sdcard"
+
+typedef struct {
+    const char* mount_point;
+    sdmmc_card_t* card;
+} MountData;
+
+static void* sdcard_mount(const char* mount_point) {
+    TT_LOG_I(TAG, "Mounting %s", mount_point);
+
+    esp_vfs_fat_sdmmc_mount_config_t mount_config = {
+        .format_if_mount_failed = CORES3_SDCARD_FORMAT_ON_MOUNT_FAILED,
+        .max_files = CORES3_SDCARD_MAX_OPEN_FILES,
+        .allocation_unit_size = CORES3_SDCARD_ALLOC_UNIT_SIZE,
+        .disk_status_check_enable = CORES3_SDCARD_STATUS_CHECK_ENABLED
+    };
+
+    sdmmc_card_t* card;
+
+    // Init without card detect (CD) and write protect (WD)
+    sdspi_device_config_t slot_config = SDSPI_DEVICE_CONFIG_DEFAULT();
+    slot_config.gpio_cs = CORES3_SDCARD_PIN_CS;
+    slot_config.host_id = CORES3_SDCARD_SPI_HOST;
+
+    sdmmc_host_t host = SDSPI_HOST_DEFAULT();
+    host.max_freq_khz = CORES3_SDCARD_SPI_FREQUENCY;
+    esp_err_t ret = esp_vfs_fat_sdspi_mount(mount_point, &host, &slot_config, &mount_config, &card);
+
+    if (ret != ESP_OK) {
+        if (ret == ESP_FAIL) {
+            TT_LOG_E(TAG, "Mounting failed. Ensure the card is formatted with FAT.");
+        } else {
+            TT_LOG_E(TAG, "Mounting failed (%s)", esp_err_to_name(ret));
+        }
+        return NULL;
+    }
+
+    MountData* data = malloc(sizeof(MountData));
+    *data = (MountData) {
+        .card = card,
+        .mount_point = mount_point
+    };
+
+    sdmmc_card_print_info(stdout, data->card);
+
+    return data;
+}
+
+static void sdcard_unmount(void* context) {
+    MountData* data = (MountData*)context;
+    TT_LOG_I(TAG, "Unmounting %s", data->mount_point);
+
+    tt_assert(data != NULL);
+    if (esp_vfs_fat_sdcard_unmount(data->mount_point, data->card) != ESP_OK) {
+        TT_LOG_E(TAG, "Unmount failed for %s", data->mount_point);
+    }
+
+    free(data);
+}
+
+static bool sdcard_is_mounted(void* context) {
+    MountData* data = (MountData*)context;
+    return (data != NULL) && (sdmmc_get_status(data->card) == ESP_OK);
+}
+
+const SdCard m5stack_sdcard = {
+    .mount = &sdcard_mount,
+    .unmount = &sdcard_unmount,
+    .is_mounted = &sdcard_is_mounted,
+    .mount_behaviour = SdcardMountBehaviourAnytime
+};