CAN GPIO #4096

firmware/config/stm32f4ems/efifeatures.h

@@ -222,10 +222,15 @@
 #define EFI_CAN_SUPPORT TRUE
 #endif
 
-#ifndef EFI_CAN_SERIAL
+#if !defined(EFI_CAN_SERIAL) && EFI_CAN_SUPPORT
 #define EFI_CAN_SERIAL TRUE
 #endif
 
+#if !defined(EFI_CAN_GPIO) && EFI_CAN_SUPPORT
+// see CAN_PIN_0
+#define EFI_CAN_GPIO TRUE
+#endif
+
 #define EFI_WIDEBAND_FIRMWARE_UPDATE TRUE
 
 #ifndef EFI_AUX_SERIAL

firmware/hw_layer/drivers/gpio/can_gpio.h

@@ -0,0 +1,10 @@
+#pragma once
+
+#include "efifeatures.h"
+
+#if EFI_CAN_GPIO
+// not number of pins but number of entities in IO module set
+#define BOARD_CAN_GPIO_COUNT 1
+#else
+#define BOARD_CAN_GPIO_COUNT 0
+#endif

firmware/hw_layer/smart_gpio.h

@@ -13,6 +13,7 @@
 #include "drivers/gpio/mc33972.h"
 #include "drivers/gpio/tle8888.h"
 #include "drivers/gpio/drv8860.h"
+#include "drivers/gpio/can_gpio.h"
 // we seem OK without L9779 here do we need those includes at all?
 #endif /* EFI_PROD_CODE */
 
@@ -26,6 +27,7 @@ BOARD_TLE8888_COUNT + \
 BOARD_DRV8860_COUNT + \
 BOARD_MC33810_COUNT + \
 BOARD_L9779_COUNT + \
+BOARD_CAN_GPIO_COUNT + \
 0)
 #endif