1 files changed, 47 insertions, 2 deletions
diff --git a/os/hal/ports/STM32/LLD/CANv1/hal_can_lld.h b/os/hal/ports/STM32/LLD/CANv1/hal_can_lld.h
index d44ccf4ee..c6c10dc12 100644
--- a/os/hal/ports/STM32/LLD/CANv1/hal_can_lld.h
+++ b/os/hal/ports/STM32/LLD/CANv1/hal_can_lld.h
@@ -105,6 +105,14 @@
 #endif
 
 /**
+ * @brief   CAN3 driver enable switch.
+ * @details If set to @p TRUE the support for CAN3 is included.
+ */
+#if !defined(STM32_CAN_USE_CAN3) || defined(__DOXYGEN__)
+#define STM32_CAN_USE_CAN3                  FALSE
+#endif
+
+/**
  * @brief   CAN1 interrupt priority level setting.
  */
 #if !defined(STM32_CAN_CAN1_IRQ_PRIORITY) || defined(__DOXYGEN__)
@@ -120,10 +128,38 @@
 #endif
 /** @} */
 
+/**
+ * @brief   CAN3 interrupt priority level setting.
+ */
+#if !defined(STM32_CAN_CAN3_IRQ_PRIORITY) || defined(__DOXYGEN__)
+#define STM32_CAN_CAN3_IRQ_PRIORITY         11
+#endif
+/** @} */
+
 /*===========================================================================*/
 /* Derived constants and error checks.                                       */
 /*===========================================================================*/
 
+#if !defined(STM32_HAS_CAN1)
+#error "STM32_HAS_CAN1 not defined in registry"
+#endif
+
+#if !defined(STM32_HAS_CAN2)
+#error "STM32_HAS_CAN2 not defined in registry"
+#endif
+
+#if !defined(STM32_HAS_CAN3)
+#error "STM32_HAS_CAN3 not defined in registry"
+#endif
+
+#if (STM32_HAS_CAN1 | STM32_HAS_CAN2) && !defined(STM32_CAN_MAX_FILTERS)
+#error "STM32_CAN_MAX_FILTERS not defined in registry"
+#endif
+
+#if STM32_HAS_CAN3 && !defined(STM32_CAN3_MAX_FILTERS)
+#error "STM32_CAN3_MAX_FILTERS not defined in registry"
+#endif
+
 #if STM32_CAN_USE_CAN1 && !STM32_HAS_CAN1
 #error "CAN1 not present in the selected device"
 #endif
@@ -132,7 +168,11 @@
 #error "CAN2 not present in the selected device"
 #endif
 
-#if !STM32_CAN_USE_CAN1 && !STM32_CAN_USE_CAN2
+#if STM32_CAN_USE_CAN3 && !STM32_HAS_CAN3
+#error "CAN2 not present in the selected device"
+#endif
+
+#if !STM32_CAN_USE_CAN1 && !STM32_CAN_USE_CAN2 && !STM32_CAN_USE_CAN3
 #error "CAN driver activated but no CAN peripheral assigned"
 #endif
 
@@ -349,6 +389,10 @@ extern CANDriver CAND1;
 extern CANDriver CAND2;
 #endif
 
+#if STM32_CAN_USE_CAN3 && !defined(__DOXYGEN__)
+extern CANDriver CAND3;
+#endif
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -367,7 +411,8 @@ extern "C" {
   void can_lld_sleep(CANDriver *canp);
   void can_lld_wakeup(CANDriver *canp);
 #endif /* CAN_USE_SLEEP_MODE */
-  void canSTM32SetFilters(uint32_t can2sb, uint32_t num, const CANFilter *cfp);
+  void canSTM32SetFilters(CANDriver *canp, uint32_t can2sb,
+                          uint32_t num, const CANFilter *cfp);
 #ifdef __cplusplus
 }
 #endif