fix ade7758

components/spi_bus_manager/CMakeLists.txt

@@ -0,0 +1,10 @@
+set(srcs
+    "src/spi_bus_manager.c"
+)
+
+idf_component_register(
+    SRCS ${srcs}
+    INCLUDE_DIRS include
+    PRIV_REQUIRES driver esp_timer
+    REQUIRES config
+)

components/spi_bus_manager/include/spi_bus_manager.h

@@ -0,0 +1,20 @@
+#ifndef SPI_BUS_MANAGER_H_
+#define SPI_BUS_MANAGER_H_
+
+#include "driver/spi_master.h"
+#include "esp_err.h"
+#include <stdbool.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+esp_err_t spi_bus_manager_init(void);
+spi_host_device_t spi_bus_manager_get_host(void);
+bool spi_bus_manager_is_initialized(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // SPI_BUS_MANAGER_H_

components/spi_bus_manager/src/spi_bus_manager.c

@@ -0,0 +1,48 @@
+#include "spi_bus_manager.h"
+#include "esp_log.h"
+#include "esp_err.h"
+
+#define TAG "spi_bus_mgr"
+
+#define SHARED_SPI_HOST SPI2_HOST
+
+// Pinos padrão (podem ser futuramente configuráveis)
+#define PIN_NUM_MOSI 23
+#define PIN_NUM_MISO 19
+#define PIN_NUM_CLK  18
+
+static bool initialized = false;
+
+esp_err_t spi_bus_manager_init(void) {
+    if (initialized) {
+        ESP_LOGW(TAG, "SPI bus already initialized on host %d", SHARED_SPI_HOST);
+        return ESP_OK;
+    }
+
+    spi_bus_config_t buscfg = {
+        .mosi_io_num = PIN_NUM_MOSI,
+        .miso_io_num = PIN_NUM_MISO,
+        .sclk_io_num = PIN_NUM_CLK,
+        .quadwp_io_num = -1,
+        .quadhd_io_num = -1,
+        .max_transfer_sz = 64,  // Ajustável conforme necessidade
+    };
+
+    esp_err_t ret = spi_bus_initialize(SHARED_SPI_HOST, &buscfg, SPI_DMA_CH_AUTO);
+    if (ret != ESP_OK) {
+        ESP_LOGE(TAG, "Failed to initialize SPI bus: %s", esp_err_to_name(ret));
+        return ret;
+    }
+
+    initialized = true;
+    ESP_LOGI(TAG, "SPI bus initialized on host %d", SHARED_SPI_HOST);
+    return ESP_OK;
+}
+
+spi_host_device_t spi_bus_manager_get_host(void) {
+    return SHARED_SPI_HOST;
+}
+
+bool spi_bus_manager_is_initialized(void) {
+    return initialized;
+}