/******************************************************************************
  Filename:       hal_ota.h
  Revised:        $Date: 2010-11-18 08:22:50 -0800 (Thu, 18 Nov 2010) $
  Revision:       $Revision: 24438 $

  Description:    This module defines optionally-compiled Boot Code parameters
                  for the CC253x.

  Copyright 2010 Texas Instruments Incorporated. All rights reserved.

  IMPORTANT: Your use of this Software is limited to those specific rights
  granted under the terms of a software license agreement between the user
  who downloaded the software, his/her employer (which must be your employer)
  and Texas Instruments Incorporated (the "License").  You may not use this
  Software unless you agree to abide by the terms of the License. The License
  limits your use, and you acknowledge, that the Software may not be modified,
  copied or distributed unless embedded on a Texas Instruments microcontroller
  or used solely and exclusively in conjunction with a Texas Instruments radio
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  YOU FURTHER ACKNOWLEDGE AND AGREE THAT THE SOFTWARE AND DOCUMENTATION ARE
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******************************************************************************/

#ifndef HAL_OTA_H
#define HAL_OTA_H

/******************************************************************************
 * INCLUDES
 */

#include "hal_board_cfg.h"
#include "hal_types.h"

/******************************************************************************
 * MACROS
 */

#if !defined HAL_OTA_BOOT_CODE
#define HAL_OTA_BOOT_CODE  FALSE
#endif

// MSP430 needs to explicitly pack OTA data structures - 8051 is automatic with byte alignment.
#define PACK_1

/******************************************************************************
 * CONSTANTS
 */

// Placement controlled by ota.xcl.
#define HAL_OTA_RC_START           0x0800
#define HAL_OTA_CRC_ADDR           0x0888
#define HAL_OTA_CRC_OSET          (HAL_OTA_CRC_ADDR - HAL_OTA_RC_START)

/* Note that corresponding changes must be made to ota.xcl when changing the source of Xtra-NV.
 * When using internal flash for XNV, (HAL_OTA_BOOT_PG_CNT + HAL_NV_PAGE_CNT) must be even.
 */
#define HAL_OTA_XNV_IS_INT         FALSE
#define HAL_OTA_XNV_IS_SPI        !HAL_OTA_XNV_IS_INT

/* The ota/ota-boot.xcl files only need 1 page of boot code (located on the first flash page),
 * but the Lock Bits Page is lost with OTA since it is not programmable.
 * So discard it here by faking that boot needs 2 pages.
 */
#define HAL_OTA_BOOT_PG_CNT        2

/* To reduce the binary image size due to padding un-used code space, reduce HAL_OTA_DL_SIZE
 * to the minimum required for your Application and make the corresponding changes to ota_app.xcl.
 * This size must be an even multiple of HAL_FLASH_PAGE_SIZE.
 */
#if HAL_OTA_XNV_IS_SPI && !defined HAL_BOARD_CC2530EB_REV13
#define HAL_OTA_DL_MAX    0x40000
#define HAL_OTA_DL_SIZE  (0x40000 - ((HAL_NV_PAGE_CNT+HAL_OTA_BOOT_PG_CNT)*HAL_FLASH_PAGE_SIZE))
#define HAL_OTA_DL_OSET   0x0  // Configurable offset into an external NV.
#else
#define HAL_OTA_DL_MAX   (0x40000 - ((HAL_NV_PAGE_CNT+HAL_OTA_BOOT_PG_CNT)*HAL_FLASH_PAGE_SIZE))
#define HAL_OTA_DL_SIZE  (HAL_OTA_DL_MAX / 2)
#define HAL_OTA_DL_OSET  (HAL_OTA_DL_MAX / 2)
#endif

#define PREAMBLE_OFFSET            0x8C

/*********************************************************************
 * TYPEDEFS
 */

typedef enum {
  HAL_OTA_RC,  /* Run code / active image.          */
  HAL_OTA_DL   /* Downloaded code to be activated later. */
} image_t;

typedef struct {
  uint16 crc;
  uint16 crc_shadow;
} otaCrc_t;

typedef struct {
  uint32 programLength;
  uint16 manufacturerId;
  uint16 imageType;
  uint32 imageVersion;
} preamble_t;

/*********************************************************************
 * FUNCTIONS
 */

uint8 HalOTAChkDL(uint8 dlImagePreambleOffset);
void HalOTAInvRC(void);
uint32 HalOTAAvail(void);
void HalOTARead(uint32 oset, uint8 *pBuf, uint16 len, image_t type);
void HalOTAWrite(uint32 oset, uint8 *pBuf, uint16 len, image_t type);
#endif