SDSIO: Add SDSIO Custom driver

Author: DavidLesnjak

ARM.SDS.pdsc

@@ -24,6 +24,7 @@
       - environment name attribute updated from "cmsis" to "csolution" for compliance
       SDSIO:
       - Gathered common SDSIO client code into sdsio_client.c/.h; low-level I/O dependant code remain in individual drivers
+      - Added SDS:IO:Custom component and driver
     </release>
   </releases>
 
@@ -136,6 +137,19 @@
       </files>
     </component>
 
+    <!-- SDS I/O (Custom client) -->
+    <component Cclass="SDS" Cgroup="IO" Csub="Custom" Capiversion="1.0.0" Cversion="1.0.0">
+      <description>I/O via Custom I/O to SDSIO Server</description>
+      <RTE_Components_h>
+        #define RTE_SDS_IO                              /* Synchronous Data Stream Input/Output */
+        #define RTE_SDS_IO_CUSTOM                       /* Synchronous Data Stream Input/Output via Custom I/O */
+      </RTE_Components_h>
+      <files>
+        <file category="source" name="sds/source/sdsio/client/sdsio_client.c"/>
+        <file category="source" name="sds/source/sdsio/template/sdsio_client_custom.c" attr="template"/>
+      </files>
+    </component>
+
     <!-- SDS I/O (File System - MDK FS) -->
     <component Cclass="SDS" Cgroup="IO" Csub="File System" Cvariant="MDK FS" Capiversion="1.0.0" Cversion="1.2.0" condition="SDS IO via File System - MDK FS">
       <description>I/O via File System (using component Keil::File System)</description>

sds/source/sdsio/template/sdsio_client_custom.c

@@ -0,0 +1,131 @@
+/*
+ * Copyright (c) 2025 Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * 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
+ *
+ * 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.
+ */
+
+// SDS I/O Client: Template for custom implementation
+
+#include "sdsio.h"
+#include "sdsio_client.h"
+
+/**
+  \fn          int32_t sdsioClientInit (void)
+  \brief       Initialize SDS I/O Client
+  \return      SDIOS_OK: initialization success
+               SDSIO_ERROR: initialization failed
+*/
+int32_t sdsioClientInit (void) {
+  int32_t ret = SDSIO_ERROR;
+
+  // ToDo: Add code for SDS I/O Client initialization
+
+  return ret;
+}
+
+/**
+  \fn          int32_t sdsioClientUninit (void)
+  \brief       Un-Initialize SDS I/O Client
+  \return      SDIOS_OK: un-initialization success
+               SDSIO_ERROR: un-initialization failed
+*/
+int32_t sdsioClientUninit (void) {
+
+  // ToDo: Add code for SDS I/O Client de-initialization
+
+  return SDSIO_OK;
+}
+
+/**
+  \fn          uint32_t sdsioClientSend (const header_t *header, const void *data, uint32_t data_size)
+  \brief       Send data to SDSIO-Server
+  \param[in]   header       pointer to header
+  \param[in]   data         pointer to buffer with data to send
+  \param[in]   data_size    data size in bytes
+  \return      number of bytes sent (including header)
+*/
+uint32_t sdsioClientSend (const header_t *header, const void *data, uint32_t data_size) {
+  uint32_t num = 0U;
+  // uint32_t cnt;
+
+  if (header == NULL) {
+    return 0U;
+  }
+
+  // Send header
+  // ToDo: Modify code below to send header to SDSIO-Server
+  // cnt = 0U;
+  // while (cnt < sizeof(header_t)) {
+  //   cnt += CustomSend((const uint8_t *)header + cnt, sizeof(header_t) - cnt);
+  // }
+  // num = cnt;
+
+
+  // Send data
+  // ToDo: Modify code below to send data to SDSIO-Server
+  // cnt = 0U;
+  // if ((data != NULL) && (data_size != 0U)) {
+  //   while (cnt < data_size) {
+  //     cnt += CustomSend((const uint8_t *)data + cnt, data_size - cnt);
+  //   }
+  // }
+  // num += cnt;
+
+  return num;
+}
+
+/**
+  \fn          uint32_t sdsioClientReceive (header_t *header, void *data, uint32_t data_size)
+  \brief       Receive data from SDSIO-Server
+  \param[out]  header       pointer to header
+  \param[out]  data         pointer to buffer for data to read
+  \param[in]   data_size    data size in bytes
+  \return      number of bytes received (including header)
+*/
+uint32_t sdsioClientReceive (header_t *header, void *data, uint32_t data_size) {
+  uint32_t num = 0U;
+  // uint32_t cnt, size;
+
+  if (header == NULL) {
+    return 0U;
+  }
+
+  // Receive header
+  // ToDo: Modify code below to receive header from SDSIO-Server
+  // cnt = 0U;
+  // while (cnt < sizeof(header_t)) {
+  //   cnt += CustomReceive((uint8_t *)header + cnt, sizeof(header_t) - cnt);
+  // }
+  // num = cnt;
+
+  // Receive data
+  // ToDo: Modify code below to receive data from SDSIO-Server
+  // cnt = 0U;
+  // if ((num != 0U) && (header->data_size != 0U) &&
+  //     (data != NULL) && (data_size != 0U)) {
+
+  //   if (header->data_size < data_size) {
+  //     size = header->data_size;
+  //   } else {
+  //     size = data_size;
+  //   }
+  //   while (cnt < size) {
+  //     cnt += CustomReceive((uint8_t *)data + cnt, size - cnt);
+  //   }
+  // }
+  // num += cnt;
+
+  return num;
+}