/*
* NOTE: This callback is only called by the following
* - Storing done operation by dfu_data_pkt_handle
* - And all clearing done operation.
*/
static void dfu_cb_handler(uint32_t result, uint8_t * p_data)
{
uint32_t err_code;
uint16_t rxd_buffer_len = 0;
uint16_t ram_crc = 0;
uint16_t flash_crc = 0;
#if defined (DBG_DFU_UART_OUT_PIN)
DEBUG_UART_OUT(0xFF);
DEBUG_UART_OUT(m_antfs_dfu_state);
#endif
switch (m_antfs_dfu_state)
{
case ANTFS_DFU_STATE_INIT_DELAYED:
// This is when upon initialization, a pre-erase operation have occured i.e. bank1 pre clearing.
services_init();
break;
case ANTFS_DFU_STATE_FLASH_ERASE:
// Handles upload and download request response delay when there is ongoing flash activities
// Generally we need to avoid flash activities and burst activities to happen at the same time.
// ANTFS request response are delayed and when flash is done response are handled here.
if (m_upload_request_in_progress)
{
m_upload_request_in_progress = false;
// Make sure we got all the latest values.
m_response_info.file_size.data = m_current_offset;
m_response_info.file_crc = m_current_crc;
if (result == NRF_SUCCESS)
{
m_upload_swap_space_prepared = true;
UNUSED_VARIABLE(antfs_upload_req_resp_transmit(RESPONSE_MESSAGE_OK, &m_response_info));
}
else
{
/* Not ready */
UNUSED_VARIABLE(antfs_upload_req_resp_transmit(RESPONSE_MESSAGE_UPLOAD_NOT_READY, &m_response_info));
}
}
if (m_download_request_in_progress)
{
m_download_request_in_progress = false;
UNUSED_VARIABLE(antfs_download_req_resp_prepare(RESPONSE_MESSAGE_OK, &m_response_info));
}
m_antfs_dfu_state = ANTFS_DFU_STATE_READY;
break;
case ANTFS_DFU_STATE_FLASH_PENDING:
case ANTFS_DFU_STATE_READY:
// Handles Flash write call back queued by Upload Data.
if (result != NRF_SUCCESS)
{
upload_data_response_fail_reset();
return;
}
if ((m_mem_pool_1.a_mem_pool <= p_data) && (p_data <= (m_mem_pool_1.a_mem_pool + ANTFS_UPLOAD_DATA_BUFFER_MAX_SIZE)))
{
rxd_buffer_len = m_mem_pool_1.size;
ram_crc = m_mem_pool_1.crc;
m_mem_pool_1.size = 0;
}
else if ((m_mem_pool_2.a_mem_pool <= p_data) && (p_data <= (m_mem_pool_2.a_mem_pool + ANTFS_UPLOAD_DATA_BUFFER_MAX_SIZE)))
{
rxd_buffer_len = m_mem_pool_2.size;
ram_crc = m_mem_pool_2.crc;
m_mem_pool_2.size = 0;
}
else
{
upload_data_response_fail_reset();
return;
}
// Verify the data written to flash.
flash_crc = crc_crc16_update(0, (uint8_t*)(dfu_storage_start_address_get() + m_image_data_offset), rxd_buffer_len);
if (flash_crc != ram_crc)
{
upload_data_response_fail_reset();
return;
}
//update current offsets and crc
m_current_offset += rxd_buffer_len;
m_current_crc = crc_crc16_update(m_current_crc, (uint8_t*)(dfu_storage_start_address_get() + m_image_data_offset), rxd_buffer_len);
m_image_data_offset += rxd_buffer_len;
if (m_antfs_dfu_state == ANTFS_DFU_STATE_FLASH_PENDING)
{
m_antfs_dfu_state = ANTFS_DFU_STATE_READY;
// Update it with the latest values;
m_response_info.file_size.data = m_current_offset;
m_response_info.file_crc = m_current_crc;
if (m_upload_request_in_progress)
{
m_upload_request_in_progress = false;
UNUSED_VARIABLE(antfs_upload_req_resp_transmit(RESPONSE_MESSAGE_OK, &m_response_info));
}
else // data response
{
if (m_image_data_complete == true)
{
if (m_image_data_max == m_image_data_offset)
{
err_code = dfu_image_validate(m_header_crc_seed);
if (err_code == NRF_SUCCESS)
{
UNUSED_VARIABLE(antfs_upload_data_resp_transmit(true));
m_antfs_dfu_state = ANTFS_DFU_STATE_VALIDATED;
return;
}
else
{
upload_data_response_fail_reset();
}
}
if ((m_mem_pool_1.size != 0) || (m_mem_pool_2.size != 0))
{
m_antfs_dfu_state = ANTFS_DFU_STATE_FLASH_PENDING;
}
}
else //m_image_data_complete == false
{
if ((m_mem_pool_1.size == 0) && (m_mem_pool_2.size == 0))
{
UNUSED_VARIABLE(antfs_upload_data_resp_transmit(true)); // Handles block transfers
}
else
{
m_antfs_dfu_state = ANTFS_DFU_STATE_FLASH_PENDING;
}
}
}
}
break;
default:
break;
}
}
/**@brief Function for processing ANTFS upload request data event.
*
* @param[in] p_event The event extracted from the queue to be processed.
*/
static void antfs_event_upload_request_handle(const antfs_event_return_t * p_event)
{
uint32_t err_code = RESPONSE_MESSAGE_OK;
uint8_t new_request = false;
if ((m_antfs_dfu_state == ANTFS_DFU_STATE_FLASH_ERASE) || (m_antfs_dfu_state == ANTFS_DFU_STATE_FLASH_PENDING))
{
return;
}
/*reset*/
m_response_info.file_index.data = p_event->file_index;
m_response_info.max_burst_block_size.data = 0;
m_response_info.max_file_size = 0;
m_response_info.file_size.data = 0;
m_response_info.file_crc = 0;
// Evaluate File Index first
if (m_current_file_index != p_event->file_index )
{
m_current_file_index = p_event->file_index;
m_current_offset = 0;
m_current_crc = 0;
}
if (p_event->offset == MAX_ULONG)
{
// This is a request to continue upload.
}
else if (p_event->offset == 0x00)
{
new_request = true;
}
else if(p_event->offset != m_current_offset)
{
// Something is wrong.
UNUSED_VARIABLE(antfs_upload_req_resp_transmit(RESPONSE_INVALID_OPERATION, &m_response_info));
m_antfs_dfu_state = ANTFS_DFU_STATE_STALL;
}
else
{
// no implementation.
}
switch (m_current_file_index)
{
#if !defined (S210_V3_STACK)
case ANTFS_FILE_INDEX_UPDATE_STACK:
case ANTFS_FILE_INDEX_UPDATE_BOOTLOADER:
case ANTFS_FILE_INDEX_UPDATE_STACK_BOOTLOADER:
#endif // S210_V3_STACK
case ANTFS_FILE_INDEX_UPDATE_APPLICATION:
{
// Current valid file size is the last offset written to the file.
m_response_info.file_size.data = m_current_offset;
// Intentionally report maximum allowed upload file size as max writeable file size + header and crc.
// Writeable size check will be performed by dfu_start_pkt_handle() after parsing uploaded header
m_response_info.max_file_size = ANTFS_FILE_SIZE_MAX_DFU_IMAGE + OTA_IMAGE_HEADER_SIZE_MAX;
// Maximum burst block should be maximum allowable downloadable file size.
m_response_info.max_burst_block_size.data = ANTFS_FILE_SIZE_MAX_DFU_IMAGE + OTA_IMAGE_HEADER_SIZE_MAX;
// Last valid CRC.
m_response_info.file_crc = m_current_crc;
// Will only handle upload request while at ANTFS_DFU_STATE_READY
if (m_antfs_dfu_state == ANTFS_DFU_STATE_VALIDATED)
{
if (new_request)
{
UNUSED_VARIABLE(antfs_upload_req_resp_transmit(RESPONSE_MESSAGE_NOT_AVAILABLE, &m_response_info));
}
else
{
UNUSED_VARIABLE(antfs_upload_req_resp_transmit(RESPONSE_MESSAGE_OK, &m_response_info)); // To handle resume at end of data.
}
return;
}
else if (m_antfs_dfu_state != ANTFS_DFU_STATE_READY)
{
UNUSED_VARIABLE(antfs_upload_req_resp_transmit(RESPONSE_MESSAGE_NOT_AVAILABLE, &m_response_info));
return;
}
// Check File Size if it can still fit. Uploaded file size may be larger than the total writeable space because it includes header
// and CRC that do not get written to flash. Writeable size check will be performed by dfu_start_pk_handle() after
// parsing uploaded header
if ((p_event->offset + p_event->bytes) > (ANTFS_FILE_SIZE_MAX_DFU_IMAGE + OTA_IMAGE_HEADER_SIZE_MAX + OTA_IMAGE_CRC_SIZE_MAX))
{
UNUSED_VARIABLE(antfs_upload_req_resp_transmit(RESPONSE_MESSAGE_NOT_ENOUGH_SPACE, &m_response_info));
return;
}
m_data_buffered = 0;
if (new_request)
{
m_current_offset = 0;
m_current_crc = 0;
m_pending_offset = 0;
antfs_ota_init();
// Only supports offset starting at 0;
if (p_event->offset != 0)
{
UNUSED_VARIABLE(antfs_upload_req_resp_transmit(RESPONSE_MESSAGE_FAIL, &m_response_info));
return;
}
// boot_return_set(PARAM_RETURN_BOOT_STATUS_Entered);
// Store file size,
m_current_file_size = p_event->bytes;
if (m_current_file_index == ANTFS_FILE_INDEX_UPDATE_STACK)
{
m_update_mode = DFU_UPDATE_SD;
}
else if (m_current_file_index == ANTFS_FILE_INDEX_UPDATE_BOOTLOADER)
{
m_update_mode = DFU_UPDATE_BL;
}
else if (m_current_file_index == ANTFS_FILE_INDEX_UPDATE_APPLICATION)
{
m_update_mode = DFU_UPDATE_APP;
}
else if (m_current_file_index == ANTFS_FILE_INDEX_UPDATE_STACK_BOOTLOADER)
{
m_update_mode = DFU_UPDATE_SD;
m_update_mode |= DFU_UPDATE_BL;//lint !e655 suppress Lint Warning 655: Bit-wise operations
}
m_dfu_pkt.packet_type = INIT_PACKET;
if ((*ANT_BOOT_APP_SIZE > DFU_IMAGE_MAX_SIZE_BANKED) ||
(*ANT_BOOT_APP_SIZE == 0xFFFFFFFF) ||
(*ANT_BOOT_APP_SIZE == 0x00000000) ||
(m_update_mode & DFU_UPDATE_SD))/*lint !e655 suppress Lint Warning 655: Bit-wise operations*/
{
m_dfu_pkt.params.init_packet.total_image_size = DFU_IMAGE_MAX_SIZE_FULL;
}
else
{
m_dfu_pkt.params.init_packet.total_image_size = m_current_file_size;
}
if (m_upload_swap_space_prepared == true)
{
// Prepare no flash, except the states
m_dfu_pkt.params.init_packet.total_image_size = 0;
}
err_code = dfu_init_pkt_handle(&m_dfu_pkt);
if (err_code)
{
if (err_code == NRF_ERROR_INVALID_STATE)
{
UNUSED_VARIABLE(antfs_upload_req_resp_transmit(RESPONSE_INVALID_OPERATION, &m_response_info));
}
else
{
UNUSED_VARIABLE(antfs_upload_req_resp_transmit(RESPONSE_MESSAGE_FAIL, &m_response_info));
}
return;
}
m_ota_image_header_parsed = false;
m_image_data_complete = false;
m_image_data_offset = 0;
m_data_buffered = 0;
// A flash erase is expected at this time. postpone response if there is.
if (flash_busy())
{
m_upload_request_in_progress = true;
m_antfs_dfu_state = ANTFS_DFU_STATE_FLASH_ERASE;
return;
}
}
else
{
// Check if there are still pending writes scheduled in Flash.
if (flash_busy())
{
m_upload_request_in_progress = true;
m_antfs_dfu_state = ANTFS_DFU_STATE_FLASH_PENDING;
return;
}
}
m_antfs_dfu_state = ANTFS_DFU_STATE_READY;
UNUSED_VARIABLE(antfs_upload_req_resp_transmit(RESPONSE_MESSAGE_OK, &m_response_info));
}
break;
default:
m_antfs_dfu_state = ANTFS_DFU_STATE_READY;
UNUSED_VARIABLE(antfs_upload_req_resp_transmit(RESPONSE_MESSAGE_NOT_EXIST, &m_response_info));
}
}
/**@brief Function for processing ANTFS upload request data event.
*
* @param[in] p_event The event extracted from the queue to be processed.
*/
static void event_upload_request_handle(const antfs_event_return_t * p_event)
{
uint8_t response = RESPONSE_MESSAGE_OK;
if ((p_event->offset == MAX_ULONG))
{
// Requesting to resume an upload.
if (m_file_index != p_event->file_index)
{
// We do not have a save point for this file.
m_file_offset = 0;
m_current_crc = 0;
}
}
else
{
// This is a new upload.
// Use requested offset and reset CRC.
m_file_offset = p_event->offset;
m_current_crc = 0;
}
m_file_index = p_event->file_index;
// Read file information from directory.
if (mem_file_info_get(m_file_index, &m_temp_dir_structure))
{
// Check permissions.
if (!(m_temp_dir_structure.general_flags & ANTFS_DIR_WRITE_MASK))
{
response = RESPONSE_MESSAGE_NOT_AVAILABLE;
printf("Upload request denied: file n/a for writing\n");
}
// Set response parameters.
m_response_info.file_index.data = m_file_index;
// Current valid file size is the last offset written to the file.
m_response_info.file_size.data = m_file_offset;
// Space available for writing is the file size, as specified on directory.
m_response_info.max_file_size = m_temp_dir_structure.file_size_in_bytes;
// Get the entire file in a single burst if possible.
m_response_info.max_burst_block_size.data = m_temp_dir_structure.file_size_in_bytes;
// Last valid CRC.
m_response_info.file_crc = m_current_crc;
}
else
{
// Index not found.
response = RESPONSE_MESSAGE_NOT_EXIST;
m_response_info.file_index.data = m_file_index;
m_response_info.file_size.data = 0;
m_response_info.max_file_size = 0;
m_response_info.max_burst_block_size.data = 0;
m_response_info.file_crc = 0;
printf("Upload request denied: file does not exist\n");
}
m_upload_success = true;
// @note: Suppress return value as no use case for handling it exists.
UNUSED_VARIABLE(antfs_upload_req_resp_transmit(response, &m_response_info));
}