kinetis/bme: add bit_checkXX() functions

A general `bit_checkXX` implementation was added with RIOT-OS#16522 to
`sys/bit.h`, but still missing for kinetis MCUs.

Author: elenaf9

cpu/kinetis/include/bme.h

@@ -22,6 +22,7 @@
  */
 
 #include <stdint.h>
+#include <stdbool.h>
 
 #ifdef __cplusplus
 extern "C"
@@ -246,6 +247,58 @@ static inline void bit_clear8(volatile uint8_t *ptr, uint8_t bit)
     *((volatile uint8_t *)(((uintptr_t)ptr) | BME_AND_MASK)) = (uint8_t)(~(1ul << bit));
 }
 
+/**
+ * @brief Checks if a single bit in the 32 bit word pointed to by @p ptr is set.
+ *
+ * The effect is the same as for the following snippet:
+ *
+ * @code{c}
+ *   *ptr & (1 << bit);
+ * @endcode
+ *
+ * @param[in] ptr   Pointer to target word.
+ * @param[in] bit   Bit number within the word.
+ */
+static inline bool bit_check32(volatile uint32_t *ptr, uint8_t bit)
+{
+    return *((volatile uint32_t *)(((uintptr_t)ptr) | BME_AND_MASK)) & (uint32_t)(1ul << bit);
+}
+
+/**
+ * @brief Checks if a single bit in the 16 bit word pointed to by @p ptr is set.
+ *
+ * The effect is the same as for the following snippet:
+ *
+ * @code{c}
+ *   *ptr & (1 << bit);
+ * @endcode
+ *
+ * @param[in] ptr   Pointer to target word.
+ * @param[in] bit   Bit number within the word.
+ */
+static inline bool bit_check16(volatile uint16_t *ptr, uint8_t bit)
+{
+    return *((volatile uint16_t *)(((uintptr_t)ptr) | BME_AND_MASK)) & (uint16_t)(1ul << bit);
+}
+
+/**
+ * @brief Checks if a single bit in the 8 bit byte pointed to by @p ptr is set.
+ *
+ * The effect is the same as for the following snippet:
+ *
+ * @code{c}
+ *   *ptr & (1 << bit);
+ * @endcode
+ *
+ * @param[in] ptr   Pointer to target byte.
+ * @param[in] bit   Bit number within the byte.
+ */
+static inline bool bit_check8(volatile uint8_t *ptr, uint8_t bit)
+{
+    return *((volatile uint8_t *)(((uintptr_t)ptr) | BME_AND_MASK)) & (uint8_t)(1ul << bit);
+}
+
+
 #ifdef __cplusplus
 }
 #endif