Diff: lib/codecs/src/ble_gatts_value_get.c

Revision:

0:6ba9b94b8997

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lib/codecs/src/ble_gatts_value_get.c	Thu Feb 09 06:08:17 2017 +0000
@@ -0,0 +1,121 @@
+/* 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.
+ *
+ * 4. This software must only be used in a processor manufactured by Nordic
+ * Semiconductor ASA, or in a processor manufactured by a third party that
+ * is used in combination with a processor manufactured by Nordic Semiconductor.
+ *
+ *
+ * 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 "ble_gatts_app.h"
+#include <string.h>
+#include "ble_serialization.h"
+#include "ble_rpc_defines.h"
+#include "app_util.h"
+#include "cond_field_serialization.h"
+
+uint32_t ble_gatts_value_get_req_enc(uint16_t               handle,
+                                     uint16_t               offset,
+                                     uint16_t const * const p_data_len,
+                                     uint8_t const * const  p_data,
+                                     uint8_t * const        p_buf,
+                                     uint32_t *             p_buf_len)
+{
+    SER_ASSERT_NOT_NULL(p_buf);
+    SER_ASSERT_NOT_NULL(p_buf_len);
+
+    uint32_t index = 0;
+
+    SER_ASSERT_LENGTH_LEQ(1 + 2 + 2, *p_buf_len);
+    p_buf[index++] = SD_BLE_GATTS_VALUE_GET;
+
+    index += uint16_encode(handle, &p_buf[index]);
+    index += uint16_encode(offset, &p_buf[index]);
+
+    if (p_data_len != NULL)
+    {
+        SER_ASSERT_LENGTH_LEQ(index + 1 + 2 + 1, *p_buf_len);
+        p_buf[index++] = RPC_BLE_FIELD_PRESENT;
+        index         += uint16_encode(*p_data_len, &p_buf[index]);
+        p_buf[index++] = (p_data == NULL) ? RPC_BLE_FIELD_NOT_PRESENT : RPC_BLE_FIELD_PRESENT;
+    }
+    else
+    {
+        SER_ASSERT_LENGTH_LEQ(index + 1 + 1, *p_buf_len);
+        p_buf[index++] = RPC_BLE_FIELD_NOT_PRESENT;
+        p_buf[index++] = RPC_BLE_FIELD_NOT_PRESENT;
+    }
+
+    *p_buf_len = index;
+
+    return NRF_SUCCESS;
+}
+
+
+uint32_t ble_gatts_value_get_rsp_dec(uint8_t const * const p_buf,
+                                     uint32_t              packet_len,
+                                     uint8_t * * const     pp_value,
+                                     uint16_t * * const    pp_value_len,
+                                     uint32_t * const      p_result_code)
+{
+    SER_ASSERT_NOT_NULL(p_buf);
+    SER_ASSERT_NOT_NULL(p_result_code);
+    SER_ASSERT_NOT_NULL(pp_value);
+    SER_ASSERT_NOT_NULL(pp_value_len);
+
+    uint32_t err_code;
+    uint32_t index         = 0;
+    uint32_t decode_result = ser_ble_cmd_rsp_result_code_dec(p_buf, &index,
+                                                             packet_len, SD_BLE_GATTS_VALUE_GET,
+                                                             p_result_code);
+
+    if (decode_result != NRF_SUCCESS)
+    {
+        return decode_result;
+    }
+
+    if (*p_result_code != NRF_SUCCESS)
+    {
+        SER_ASSERT_LENGTH_EQ(index, packet_len);
+        return NRF_SUCCESS;
+    }
+
+    uint16_t value_buffer_size = *(*pp_value_len);
+
+    err_code = cond_field_dec(p_buf, packet_len, &index, (void * *)pp_value_len, uint16_t_dec);
+    SER_ASSERT(err_code == NRF_SUCCESS, err_code);
+
+    uint16_t value_len = (*pp_value_len) ? *(*pp_value_len) : 0;
+    err_code = buf_dec(p_buf, packet_len, &index, pp_value, value_buffer_size, value_len);
+    SER_ASSERT(err_code == NRF_SUCCESS, err_code);
+
+    SER_ASSERT_LENGTH_EQ(index, packet_len);
+
+    return NRF_SUCCESS;
+}
+