[EFR32] Initial radio driver

First check-in of the EFR32 radio driver for Nanostack

Author: stevew817

targets/TARGET_Silicon_Labs/TARGET_SL_RAIL/efr32-rf-driver/LICENSE

@@ -0,0 +1,2 @@
+Unless specifically indicated otherwise in a file, files are licensed
+under the Apache 2.0 license, as can be found in: apache-2.0.txt

targets/TARGET_Silicon_Labs/TARGET_SL_RAIL/efr32-rf-driver/README.md

@@ -0,0 +1,6 @@
+# Example 802.15.4 RF driver for Silicon Labs EFR32 Wireless SoCs #
+
+Support for:
+ * EFR32MG1X
+
+This driver is used with the mbed 6LoWPAN stack.

targets/TARGET_Silicon_Labs/TARGET_SL_RAIL/efr32-rf-driver/apache-2.0.txt

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+
+
+Apache License
+
+Version 2.0, January 2004
+
+http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+"License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document.
+
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+
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+
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+6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file.
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+7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License.
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+END OF TERMS AND CONDITIONS

targets/TARGET_Silicon_Labs/TARGET_SL_RAIL/efr32-rf-driver/buffer-pool-memory-manager/buffer_pool_allocator.c

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+/***************************************************************************//**
+ * @file buffer_pool_allocator.c
+ * @brief The source for a simple memory allocator that statically creates pools
+ *        of fixed size buffers to allocate from.
+ * @copyright Copyright 2015 Silicon Laboratories, Inc. http://www.silabs.com
+ ******************************************************************************/
+
+#include <stdlib.h>
+
+#include "buffer_pool_allocator.h"
+
+#include "em_int.h"
+
+#ifdef CONFIGURATION_HEADER
+#include CONFIGURATION_HEADER
+#endif
+
+// -----------------------------------------------------------------------------
+// Configuration Macros
+// -----------------------------------------------------------------------------
+
+// Default to a ping-pong buffer pool with a size of 128 (127 MTU + 1 length) bytes per buffer
+#ifndef BUFFER_POOL_SIZE
+#define BUFFER_POOL_SIZE 2
+#endif
+#ifndef MAX_BUFFER_SIZE
+#define MAX_BUFFER_SIZE 128
+#endif
+
+#define INVALID_BUFFER_OBJ ((void*)0xFFFFFFFF)
+
+typedef struct {
+  uint8_t refCount;
+  uint8_t data[MAX_BUFFER_SIZE];
+} BufferPoolObj_t;
+
+static BufferPoolObj_t memoryObjs[BUFFER_POOL_SIZE];
+
+void* memoryAllocate(uint32_t size)
+{
+  uint32_t i = 0;
+  void *handle = INVALID_BUFFER_OBJ;
+
+  // We can't support sizes greater than the maximum heap buffer size
+  if(size > MAX_BUFFER_SIZE) {
+    return INVALID_BUFFER_OBJ;
+  }
+
+  INT_Disable();
+  for(i = 0; i < BUFFER_POOL_SIZE; i++)
+  {
+    if(memoryObjs[i].refCount == 0)
+    {
+      memoryObjs[i].refCount = 1;
+      handle = (void*)i;
+      break;
+    }
+  }
+  INT_Enable();
+
+  return handle;
+}
+
+void *memoryPtrFromHandle(void *handle)
+{
+  void *ptr = NULL;
+
+  // Make sure we were given a valid handle
+  if((handle == INVALID_BUFFER_OBJ) || ((uint32_t)handle > BUFFER_POOL_SIZE))
+  {
+    return NULL;
+  }
+
+  INT_Disable();
+  if(memoryObjs[(uint32_t)handle].refCount > 0)
+  {
+    ptr = memoryObjs[(uint32_t)handle].data;
+  }
+  INT_Enable();
+
+  return ptr;
+}
+
+void memoryFree(void *handle)
+{
+  INT_Disable();
+  if(memoryPtrFromHandle(handle) != NULL)
+  {
+    memoryObjs[(uint32_t)handle].refCount--;
+  }
+  INT_Enable();
+}
+
+void memoryTakeReference(void *handle)
+{
+  INT_Disable();
+  if(memoryPtrFromHandle(handle) != NULL)
+  {
+    memoryObjs[(uint32_t)handle].refCount++;
+  }
+  INT_Enable();
+}

targets/TARGET_Silicon_Labs/TARGET_SL_RAIL/efr32-rf-driver/buffer-pool-memory-manager/buffer_pool_allocator.h

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+/***************************************************************************//**
+ * @file buffer_pool_allocator.h
+ * @brief This is a simple memory allocator that uses a build time defined pool
+ *   of constant sized buffers. It's a very simple allocator, but one that can
+ *   be easily used in any application.
+ *
+ * @copyright Copyright 2015 Silicon Laboratories, Inc. http://www.silabs.com
+ ******************************************************************************/
+
+#ifndef BUFFER_POOL_ALLOCATOR_H__
+#define BUFFER_POOL_ALLOCATOR_H__
+
+// Get the standard include types
+#include <stdint.h>
+
+/**
+ * Allocate a buffer with at least the number of bytes specified. If there is
+ * not enough space then this function will return NULL.
+ * @param size The number of bytes to allocate for this buffer
+ * @return Returns a handle to a buffer at least size bytes long or NULL if no
+ *   buffer could be allocated.
+ */
+void* memoryAllocate(uint32_t size);
+
+/**
+ * Free the buffer pointed to by handle. This will only decrement the reference
+ * counter for this buffer. The memory is not freed until the reference counter
+ * reaches zero.
+ * @param handle The handle to free. Must match the value returned by
+ *   the memoryAllocate() function.
+ */
+void memoryFree(void *handle);
+
+/**
+ * Take a memory handle and get the data pointer associated with it. This will
+ * return NULL if passed an invalid or unallocated handle.
+ * @param handle The handle to get the pointer for. Must match the value
+ *   returned by the memoryAllocate() function.
+ */
+void *memoryPtrFromHandle(void *handle);
+
+/**
+ * Increment the reference counter on the memory pointed to by handle. After
+ * doing this there will have to be an additional call to memoryFree() to
+ * release the memory.
+ * @param handle The handle to the object which needs its reference count
+ *   increased. Must match the value returned by the memoryAllocate() function.
+ */
+void memoryTakeReference(void *handle);
+
+#endif // BUFFER_POOL_ALLOCATOR_H__

targets/TARGET_Silicon_Labs/TARGET_SL_RAIL/efr32-rf-driver/buffer-pool-memory-manager/rail_integration.c

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+/***************************************************************************//**
+ * @file rail_integration.c
+ * @brief Simple code to link this memory manager with a RAIL application by
+*         implementing the appropriate callbacks.
+ * @copyright Copyright 2015 Silicon Laboratories, Inc. http://www.silabs.com
+ ******************************************************************************/
+
+#include <stdint.h>
+#include "rail.h"
+#include "buffer_pool_allocator.h"
+
+/// Rely on the pool allocator's allocate function to get memory
+void *RAILCb_AllocateMemory(uint32_t size)
+{
+  return memoryAllocate(size);
+}
+
+/// Use the pool allocator's free function to return the memory to the pool
+void RAILCb_FreeMemory(void *ptr)
+{
+  memoryFree(ptr);
+}
+
+/// Get the memory pointer for this handle and offset into it as requested
+void *RAILCb_BeginWriteMemory(void *handle,
+                              uint32_t offset,
+                              uint32_t *available)
+{
+  return ((uint8_t*)memoryPtrFromHandle(handle)) + offset;
+}
+
+/// We don't need to track the completion of a memory write so do nothing
+void RAILCb_EndWriteMemory(void *handle, uint32_t offset, uint32_t size)
+{
+}

targets/TARGET_Silicon_Labs/TARGET_SL_RAIL/efr32-rf-driver/efr32-rf-driver/NanostackRfPhyEfr32.h

@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2016 Silicon Laboratories, Inc. http://www.silabs.com
+ * 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
+ *
+ * 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.
+ */
+
+#ifndef NANOSTACK_PHY_EFR32_H_
+#define NANOSTACK_PHY_EFR32_H_
+
+#include "mbed.h"
+#include "NanostackRfPhy.h"
+
+class NanostackRfPhyEfr32 : public NanostackRfPhy {
+public:
+    NanostackRfPhyEfr32();
+    ~NanostackRfPhyEfr32();
+    int8_t rf_register();
+    void rf_unregister();
+    void get_mac_address(uint8_t *mac);
+    void set_mac_address(uint8_t *mac);
+    uint32_t get_driver_version();
+};
+
+#endif /* NANOSTACK_PHY_EFR32_H_ */

targets/TARGET_Silicon_Labs/TARGET_SL_RAIL/efr32-rf-driver/rail/TOOLCHAIN_GCC_ARM/TARGET_EFR32MG1/ieee802154_efr32xg1_configurator_out.c

@@ -0,0 +1,103 @@
+/***************************************************************************//**
+ * @brief RAIL Configuration
+ * @copyright Copyright 2016 Silicon Laboratories, Inc. http://www.silabs.com
+ ******************************************************************************/
+//=============================================================================
+//
+//  WARNING: Auto-Generated Radio Config  -  DO NOT EDIT
+//
+//=============================================================================
+#include <stdint.h>
+
+const uint32_t ieee802154_config_base[] = {
+      0x01010FF4UL, 0x00000000UL,
+      0x01010FF8UL, 0x0003C000UL,
+      0x01010FFCUL, 0x0003C00EUL,
+      0x00010004UL, 0x00157001UL,
+      0x00010008UL, 0x0000007FUL,
+      0x00010018UL, 0x00000000UL,
+      0x0001001CUL, 0x00000000UL,
+      0x00010028UL, 0x00000000UL,
+      0x0001002CUL, 0x00000000UL,
+      0x00010030UL, 0x00000000UL,
+      0x00010034UL, 0x00000000UL,
+      0x0001003CUL, 0x00000000UL,
+      0x00010040UL, 0x000007A0UL,
+      0x00010048UL, 0x00000000UL,
+      0x00010054UL, 0x00000000UL,
+      0x00010058UL, 0x00000000UL,
+      0x000100A0UL, 0x00004000UL,
+      0x000100A4UL, 0x00004CFFUL,
+      0x000100A8UL, 0x00004100UL,
+      0x000100ACUL, 0x00004DFFUL,
+      0x00012000UL, 0x00000704UL,
+      0x00012010UL, 0x00000000UL,
+      0x00012018UL, 0x00008408UL,
+      0x00013008UL, 0x0000AC3FUL,
+      0x0001302CUL, 0x01F50AAAUL,
+      0x00013030UL, 0x00104924UL,
+      0x00013034UL, 0x00000001UL,
+      0x0001303CUL, 0x00010AABUL,
+      0x00013040UL, 0x00000000UL,
+      0x000140A0UL, 0x0F00277AUL,
+      0x000140F4UL, 0x00001020UL,
+      0x00014134UL, 0x00000880UL,
+      0x00014138UL, 0x000087E6UL,
+      0x00014140UL, 0x0088006DUL,
+      0x00014144UL, 0x1153E6C0UL,
+      0x00016014UL, 0x00000010UL,
+      0x00016018UL, 0x0413F920UL,
+      0x0001601CUL, 0x0052C007UL,
+      0x00016020UL, 0x000000C8UL,
+      0x00016024UL, 0x00000000UL,
+      0x00016028UL, 0x03000000UL,
+      0x0001602CUL, 0x00000000UL,
+      0x00016030UL, 0x00FF0264UL,
+      0x00016034UL, 0x000008A2UL,
+      0x00016038UL, 0x00000001UL,
+      0x0001603CUL, 0x000807B0UL,
+      0x00016040UL, 0x000000A7UL,
+      0x00016044UL, 0x00000000UL,
+      0x00016048UL, 0x0AC00141UL,
+      0x0001604CUL, 0x744AC39BUL,
+      0x00016050UL, 0x000003F0UL,
+      0x00016054UL, 0x00000000UL,
+      0x00016058UL, 0x00000000UL,
+      0x0001605CUL, 0x30100101UL,
+      0x00016060UL, 0x7F7F7050UL,
+      0x00016064UL, 0x00000000UL,
+      0x00017014UL, 0x000270FAUL,
+      0x00017018UL, 0x00001800UL,
+      0x0001701CUL, 0x82840000UL,
+      0x00017028UL, 0x01800000UL,
+      0x00017048UL, 0x00003D3CUL,
+      0x0001704CUL, 0x000019BCUL,
+      0x00017070UL, 0x00010103UL,
+      0x00017074UL, 0x00000442UL,
+      0x00017078UL, 0x00552300UL,
+      0xFFFFFFFFUL,
+};
+
+const uint32_t ieee802154_config_base_min[] = {
+      0x01010FFCUL, 0x0003C00EUL,
+      0x0001303CUL, 0x00010AABUL,
+      0x00016034UL, 0x000008A2UL,
+      0x00016038UL, 0x00000001UL,
+      0x00017078UL, 0x00552300UL,
+      0xFFFFFFFFUL,
+};
+
+const uint32_t ieee802154_config_2415MHz_min[] = {
+      0x01010FFCUL, 0x0003C00AUL,
+      0x0001303CUL, 0x00003555UL,
+      0xFFFFFFFFUL,
+};
+
+const uint32_t ieee802154_config_2420MHz_min[] = {
+      0x0001303CUL, 0x00003555UL,
+      0x00016034UL, 0x000004A1UL,
+      0x00016038UL, 0x00000009UL,
+      0x00017078UL, 0x0049E006UL,
+      0xFFFFFFFFUL,
+};
+