/*********************************************************************
* @fn ResetWriteAttrCB
*
* @brief Validate attribute data prior to a write operation
*
* @param connHandle - connection message was received on
* @param pAttr - pointer to attribute
* @param pValue - pointer to data to be written
* @param len - length of data
* @param offset - offset of the first octet to be written
* @param method - type of write message
*
* @return SUCCESS, blePending or Failure
*/
static bStatus_t ResetWriteAttrCB(uint16_t connHandle,
gattAttribute_t *pAttr,
uint8_t *pValue, uint16_t len,
uint16_t offset, uint8_t method)
{
bStatus_t status = SUCCESS;
if ( pAttr->type.len == ATT_UUID_SIZE )
{
// 128-bit UUID
if (!memcmp(pAttr->type.uuid, resetCharUUID, ATT_UUID_SIZE))
{
uint16_t crc[2] = {0x0000, 0x0000};
// Invalidate the image.
OADTarget_writeFlash(OAD_IMG_R_PAGE, OAD_IMG_R_OSET + OAD_IMG_CRC_OSET,
(uint8_t *)crc, 4);
// Reset.
HAL_SYSTEM_RESET();
}
else
{
status = ATT_ERR_INVALID_HANDLE;
}
}
return status;
}
/*********************************************************************
* @fn OADTarget_setCrc
*
* @brief Set the CRC shadow of the downloaded image.
*
* @param pCrc - pointer to the new image header
*
* @return None.
*/
void OADTarget_setCrc(uint16_t *pCrc)
{
// Write CRC shadow to downloaded image.
OADTarget_writeFlash(OAD_IMG_D_PAGE, OAD_IMG_CRC_OSET, (uint8_t *)pCrc,
sizeof(uint16_t) * 2);
// Read the CRC and CRC shadow back from downloaded image.
OADTarget_readFlash(OAD_IMG_D_PAGE, OAD_IMG_CRC_OSET, (uint8_t *)pCrc,
sizeof(uint16_t) * 2);
}
