1 files changed, 24 insertions, 0 deletions
diff --git a/firmware/targets/f6/furi_hal/furi_hal_sd.c b/firmware/targets/f6/furi_hal/furi_hal_sd.c
new file mode 100644
index 00000000..c62b4aa5
--- /dev/null
+++ b/firmware/targets/f6/furi_hal/furi_hal_sd.c
@@ -0,0 +1,24 @@
+#include "furi_hal_sd.h"
+#include <stm32wbxx_ll_gpio.h>
+#include <furi.h>
+
+void hal_sd_detect_init(void) {
+    // low speed input with pullup
+    LL_GPIO_SetPinMode(SD_CD_GPIO_Port, SD_CD_Pin, LL_GPIO_MODE_INPUT);
+    LL_GPIO_SetPinSpeed(SD_CD_GPIO_Port, SD_CD_Pin, LL_GPIO_SPEED_FREQ_LOW);
+    LL_GPIO_SetPinPull(SD_CD_GPIO_Port, SD_CD_Pin, LL_GPIO_PULL_UP);
+}
+
+void hal_sd_detect_set_low(void) {
+    // low speed input with pullup
+    LL_GPIO_SetPinMode(SD_CD_GPIO_Port, SD_CD_Pin, LL_GPIO_MODE_OUTPUT);
+    LL_GPIO_SetPinOutputType(SD_CD_GPIO_Port, SD_CD_Pin, LL_GPIO_OUTPUT_OPENDRAIN);
+    LL_GPIO_ResetOutputPin(SD_CD_GPIO_Port, SD_CD_Pin);
+}
+
+bool hal_sd_detect(void) {
+    bool result = !(LL_GPIO_IsInputPinSet(SD_CD_GPIO_Port, SD_CD_Pin));
+    return result;
+}
+
+FuriHalSpiBusHandle* furi_hal_sd_spi_handle = NULL;