Added bitmap class in os/various

1 files changed, 77 insertions, 0 deletions

diff --git a/os/various/bitmap.h b/os/various/bitmap.h
new file mode 100644
index 0000000..d7831aa
--- /dev/null
+++ b/os/various/bitmap.h
@@ -0,0 +1,77 @@
+/*
+    ChibiOS/HAL - Copyright (C) 2015 Uladzimir Pylinsky aka barthess
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+/**
+ * @file    bitmap.h
+ * @brief   Bit map structures and macros.
+ *
+ * @addtogroup bitmap
+ * @{
+ */
+
+#ifndef _BITMAP_H_
+#define _BITMAP_H_
+
+/*===========================================================================*/
+/* Module constants.                                                         */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Module pre-compile time settings.                                         */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Derived constants and error checks.                                       */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Module data structures and types.                                         */
+/*===========================================================================*/
+
+typedef unsigned int bitmap_word_t;
+
+/**
+ * @brief   Type of a event timer structure.
+ */
+typedef struct {
+  bitmap_word_t   *array;
+  size_t          len;    /* Array length in _words_ NOT bytes */
+} bitmap_t;
+
+/*===========================================================================*/
+/* Module macros.                                                            */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* External declarations.                                                    */
+/*===========================================================================*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+  void bitmapObjectInit(bitmap_t *map, bitmap_word_t val);
+  void bitmapSet(bitmap_t *map, size_t bit);
+  void bitmapClear(bitmap_t *map, size_t bit);
+  void bitmapInvert(bitmap_t *map, size_t bit);
+  bitmap_word_t bitmapGet(const bitmap_t *map, size_t bit);
+  size_t bitmapGetBitsCount(const bitmap_t *map);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _BITMAP_H_ */
+
+/** @} */