diff options
Diffstat (limited to 'src/lib/pal.h')
| -rw-r--r-- | src/lib/pal.h | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/src/lib/pal.h b/src/lib/pal.h index 11137c6cb..cac306c43 100644 --- a/src/lib/pal.h +++ b/src/lib/pal.h @@ -32,6 +32,16 @@ #endif
/**
+ * @brief Logical low state. + */
+#define PAL_LOW 0
+
+/**
+ * @brief Logical high state.
+ */
+#define PAL_HIGH 1
+
+/**
* @brief Port bit helper macro.
* @details This macro calculates the mask of a bit within a port.
*
@@ -241,7 +251,7 @@ typedef struct { *
* @param[in] port the port identifier
* @param[in] pad the pad number within the port
- * @param[out] value the logical value, the value must be @p 0 or @p 1
+ * @param[out] bit the logical value, the value must be @p 0 or @p 1
*
* @note The operation is not guaranteed to be atomic on all the architectures,
* for atomicity and/or portability reasons you may need to enclose port
@@ -253,12 +263,12 @@ typedef struct { * @p palWritePort().
*/
#if !defined(pal_lld_writepad) || defined(__DOXYGEN__)
-#define palWritePad(port, pad, value) { \
+#define palWritePad(port, pad, bit) { \
palWritePort(port, (palReadLatch(port) & ~PAL_PORT_BIT(pad)) | \
- (((value) & 1) << pad)); \
+ (((bit) & 1) << pad)); \
}
#else
-#define palWritePad(port, pad, value) pal_lld_writepad(port, pad, value)
+#define palWritePad(port, pad, bit) pal_lld_writepad(port, pad, bit)
#endif
/**
|