Diff: TARGET_MCU_NRF51822/sdk/source/libraries/util/sdk_mapped_flags.c

Revision:

640:c90ae1400bf2

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TARGET_MCU_NRF51822/sdk/source/libraries/util/sdk_mapped_flags.c	Wed Sep 14 14:39:43 2016 +0100
@@ -0,0 +1,181 @@
+/*
+ * Copyright (c) Nordic Semiconductor ASA
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright notice, this
+ *   list of conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright notice, this
+ *   list of conditions and the following disclaimer in the documentation and/or
+ *   other materials provided with the distribution.
+ *
+ *   3. Neither the name of Nordic Semiconductor ASA nor the names of other
+ *   contributors to this software may be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "sdk_mapped_flags.h"
+#include <stdint.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include "compiler_abstraction.h"
+
+
+/**@brief Function for setting the state of a flag to true.
+ *
+ * @note This function does not check whether the index is valid.
+ *
+ * @param[in]  p_flags  The collection of flags to modify.
+ * @param[in]  index    The index of the flag to modify.
+ */
+static __INLINE void sdk_mapped_flags_set_by_index(sdk_mapped_flags_t * p_flags, uint16_t index)
+{
+    *p_flags |= (1U << index);
+}
+
+
+/**@brief Function for setting the state of a flag to false.
+ *
+ * @note This function does not check whether the index is valid.
+ *
+ * @param[in]  p_flags  The collection of flags to modify.
+ * @param[in]  index    The index of the flag to modify.
+ */
+static __INLINE void sdk_mapped_flags_clear_by_index(sdk_mapped_flags_t * p_flags, uint16_t index)
+{
+    *p_flags &= ~(1U << index);
+}
+
+
+/**@brief Function for getting the state of a flag.
+ *
+ * @note This function does not check whether the index is valid.
+ *
+ * @param[in]  p_flags  The collection of flags to read.
+ * @param[in]  index    The index of the flag to get.
+ */
+static __INLINE bool sdk_mapped_flags_get_by_index(sdk_mapped_flags_t flags, uint16_t index)
+{
+    return ((flags & (1 << index)) != 0);
+}
+
+
+
+uint16_t sdk_mapped_flags_first_key_index_get(sdk_mapped_flags_t flags)
+{
+    for (uint16_t i = 0; i < SDK_MAPPED_FLAGS_N_KEYS; i++)
+    {
+        if (sdk_mapped_flags_get_by_index(flags, i))
+        {
+            return i;
+        }
+    }
+    return SDK_MAPPED_FLAGS_INVALID_INDEX;
+}
+
+
+void sdk_mapped_flags_update_by_key(uint16_t           * p_keys,
+                                    sdk_mapped_flags_t * p_flags,
+                                    uint16_t             key,
+                                    bool                 value)
+{
+    sdk_mapped_flags_bulk_update_by_key(p_keys, p_flags, 1, key, value);
+}
+
+
+void sdk_mapped_flags_bulk_update_by_key(uint16_t           * p_keys,
+                                         sdk_mapped_flags_t * p_flags,
+                                         uint32_t             n_flag_collections,
+                                         uint16_t             key,
+                                         bool                 value)
+{
+    if ((p_keys != NULL) && (p_flags != NULL) && (n_flag_collections > 0))
+    {
+        for (int i = 0; i < SDK_MAPPED_FLAGS_N_KEYS; i++)
+        {
+            if (p_keys[i] == key)
+            {
+                for (int j = 0; j < n_flag_collections; j++)
+                {
+                    if (value)
+                    {
+                        sdk_mapped_flags_set_by_index(&p_flags[j], i);
+                    }
+                    else
+                    {
+                        sdk_mapped_flags_clear_by_index(&p_flags[j], i);
+                    }
+                }
+                return;
+            }
+        }
+    }
+}
+
+
+bool sdk_mapped_flags_get_by_key(uint16_t * p_keys, sdk_mapped_flags_t flags, uint16_t key)
+{
+    if (p_keys != NULL)
+    {
+        for (int i = 0; i < SDK_MAPPED_FLAGS_N_KEYS; i++)
+        {
+            if (p_keys[i] == key)
+            {
+                return sdk_mapped_flags_get_by_index(flags, i);
+            }
+        }
+    }
+    return false;
+}
+
+
+sdk_mapped_flags_key_list_t sdk_mapped_flags_key_list_get(uint16_t           * p_keys,
+                                                          sdk_mapped_flags_t   flags)
+{
+    sdk_mapped_flags_key_list_t key_list;
+    key_list.len = 0;
+
+    if (p_keys != NULL)
+    {
+        for (int i = 0; i < SDK_MAPPED_FLAGS_N_KEYS; i++)
+        {
+            if (sdk_mapped_flags_get_by_index(flags, i))
+            {
+                key_list.flag_keys[key_list.len++] = p_keys[i];
+            }
+        }
+    }
+
+    return key_list;
+}
+
+
+uint32_t sdk_mapped_flags_n_flags_set(sdk_mapped_flags_t flags)
+{
+    uint32_t n_flags_set = 0;
+
+    for (int i = 0; i < SDK_MAPPED_FLAGS_N_KEYS; i++)
+    {
+        if (sdk_mapped_flags_get_by_index(flags, i))
+        {
+            n_flags_set += 1;
+        }
+    }
+    return n_flags_set;
+}