uint32_t pstorage_load(uint8_t * p_dest,
pstorage_handle_t * p_src,
pstorage_size_t size,
pstorage_size_t offset)
{
VERIFY_MODULE_INITIALIZED();
NULL_PARAM_CHECK(p_src);
NULL_PARAM_CHECK(p_dest);
MODULE_ID_RANGE_CHECK (p_src);
BLOCK_ID_RANGE_CHECK(p_src);
SIZE_CHECK(p_src,size);
OFFSET_CHECK(p_src,offset,size);
// Verify word alignment.
if ((!is_word_aligned(p_dest)) || (!is_word_aligned((void *)(uint32_t)offset)))
{
return NRF_ERROR_INVALID_ADDR;
}
memcpy(p_dest, (((uint8_t *)p_src->block_id) + offset), size);
app_notify(p_src, p_dest, PSTORAGE_LOAD_OP_CODE, size, NRF_SUCCESS);
return NRF_SUCCESS;
}
uint32_t pstorage_store(pstorage_handle_t * p_dest,
uint8_t * p_src,
pstorage_size_t size,
pstorage_size_t offset)
{
VERIFY_MODULE_INITIALIZED();
NULL_PARAM_CHECK(p_src);
NULL_PARAM_CHECK(p_dest);
MODULE_ID_RANGE_CHECK(p_dest);
BLOCK_ID_RANGE_CHECK(p_dest);
SIZE_CHECK(p_dest, size);
OFFSET_CHECK(p_dest, offset, size);
// Verify word alignment.
if ((!is_word_aligned(p_src)) || (!is_word_aligned((void *)(uint32_t)offset)))
{
return NRF_ERROR_INVALID_ADDR;
}
uint32_t storage_addr = p_dest->block_id + offset;
uint32_t retval = ble_flash_block_write((uint32_t *)storage_addr,
(uint32_t *)p_src,
(size /sizeof(uint32_t)));
app_notify(p_dest, p_src, PSTORAGE_STORE_OP_CODE, size, retval);
return retval;
}
uint32_t pstorage_store(pstorage_handle_t * p_dest,
uint8_t * p_src,
pstorage_size_t size,
pstorage_size_t offset)
{
VERIFY_MODULE_INITIALIZED();
NULL_PARAM_CHECK(p_src);
NULL_PARAM_CHECK(p_dest);
MODULE_ID_RANGE_CHECK(p_dest);
BLOCK_ID_RANGE_CHECK(p_dest);
SIZE_CHECK(p_dest, size);
OFFSET_CHECK(p_dest, offset,size);
// Verify word alignment.
if ((!is_word_aligned(p_src)) || (!is_word_aligned((void *)(uint32_t)offset)))
{
return NRF_ERROR_INVALID_ADDR;
}
if ((!is_word_aligned((uint32_t *)p_dest->block_id)))
{
return NRF_ERROR_INVALID_ADDR;
}
return cmd_queue_enqueue(PSTORAGE_STORE_OP_CODE, p_dest, p_src, size, offset);
}
uint32_t pstorage_update(pstorage_handle_t * p_dest,
uint8_t * p_src,
pstorage_size_t size,
pstorage_size_t offset)
{
uint32_t *p_swap_addr = (uint32_t *)PSTORAGE_SWAP_ADDR;
uint32_t *p_page_addr1 = (uint32_t *) PAGE_BASE_ADDR(p_dest->block_id + offset);
#ifdef SUPPORT_MODULES_LARGER_THAN_PAGE
uint32_t *p_page_addr2 = (uint32_t *) PAGE_BASE_ADDR(p_dest->block_id + offset + size-1);
#endif
uint16_t head_word_count = offset/sizeof(uint32_t);
uint16_t body_word_count = size/sizeof(uint32_t);
uint16_t tail_word_count;
uint32_t retval;
VERIFY_MODULE_INITIALIZED();
NULL_PARAM_CHECK(p_src);
NULL_PARAM_CHECK(p_dest);
MODULE_ID_RANGE_CHECK(p_dest);
BLOCK_ID_RANGE_CHECK(p_dest);
SIZE_CHECK(p_dest, size);
OFFSET_CHECK(p_dest, offset, size);
// Verify word alignment.
if ((!is_word_aligned(p_src)) || (!is_word_aligned((void *)(uint32_t)offset)))
{
return NRF_ERROR_INVALID_ADDR;
}
// erase swap page
(void) ble_flash_page_erase(PSTORAGE_SWAP_ADDR / BLE_FLASH_PAGE_SIZE);
#ifdef SUPPORT_MODULES_LARGER_THAN_PAGE
if (p_page_addr1 == p_page_addr2)
{
#endif
// tail is in the same page as head
tail_word_count = BLE_FLASH_PAGE_SIZE/sizeof(uint32_t) - head_word_count - body_word_count;
// copy of the head
if (head_word_count)
{
retval = ble_flash_block_write(p_swap_addr, p_page_addr1, head_word_count );
if (retval != NRF_SUCCESS)
{
app_notify(p_dest, p_src, PSTORAGE_UPDATE_OP_CODE, size, retval);
return retval;
}
}
// copy of the body
retval = ble_flash_block_write(p_swap_addr+head_word_count, (uint32_t *)p_src, body_word_count);
if (retval != NRF_SUCCESS)
{
app_notify(p_dest, p_src, PSTORAGE_UPDATE_OP_CODE, size, retval);
return retval;
}
// copy of the tail
if (tail_word_count)
{
retval = ble_flash_block_write(p_swap_addr+head_word_count+body_word_count, p_page_addr1+head_word_count+body_word_count, tail_word_count );
if (retval != NRF_SUCCESS)
{
app_notify(p_dest, p_src, PSTORAGE_UPDATE_OP_CODE, size, retval);
return retval;
}
}
// erase active page
(void) ble_flash_page_erase((uint32_t)p_page_addr1 / BLE_FLASH_PAGE_SIZE);
// restore updated page
retval = ble_flash_block_write(p_page_addr1, p_swap_addr, BLE_FLASH_PAGE_SIZE/sizeof(uint32_t));
#ifdef SUPPORT_MODULES_LARGER_THAN_PAGE
}
else
{
// tail is in NOT in the same page as head - need to swap twice
uint16_t body1_word_count = BLE_FLASH_PAGE_SIZE/sizeof(uint32_t) - head_word_count;
uint16_t body2_word_count = body_word_count - body1_word_count;
tail_word_count = BLE_FLASH_PAGE_SIZE/sizeof(uint32_t) - body2_word_count;
// copy head
retval = ble_flash_block_write(p_swap_addr, p_page_addr1, head_word_count );
if (retval != NRF_SUCCESS)
{
app_notify(p_dest, p_src, PSTORAGE_UPDATE_OP_CODE, size, retval);
return retval;
}
// copy body1
retval = ble_flash_block_write(p_swap_addr, (uint32_t *)p_src, body1_word_count );
if (retval != NRF_SUCCESS)
{
app_notify(p_dest, p_src, PSTORAGE_UPDATE_OP_CODE, size, retval);
return retval;
}
// erase active page
(void) ble_flash_page_erase((uint32_t)p_page_addr1 / BLE_FLASH_PAGE_SIZE);
// restore updated page1
retval = ble_flash_block_write(p_page_addr1, p_swap_addr, BLE_FLASH_PAGE_SIZE/sizeof(uint32_t));
if (retval != NRF_SUCCESS)
{
app_notify(p_dest, p_src, PSTORAGE_UPDATE_OP_CODE, size, retval);
return retval;
}
// erase swap page
(void) ble_flash_page_erase(PSTORAGE_SWAP_ADDR / BLE_FLASH_PAGE_SIZE);
// copy body2
retval = ble_flash_block_write(p_swap_addr, (uint32_t *)p_src + body1_word_count, body2_word_count );
if (retval != NRF_SUCCESS)
{
app_notify(p_dest, p_src, PSTORAGE_UPDATE_OP_CODE, size, retval);
return retval;
}
// copy tail
retval = ble_flash_block_write(p_swap_addr, p_page_addr2+body2_word_count, tail_word_count );
if (retval != NRF_SUCCESS)
{
app_notify(p_dest, p_src, PSTORAGE_UPDATE_OP_CODE, size, retval);
return retval;
}
// erase active page
(void) ble_flash_page_erase((uint32_t)p_page_addr2 / BLE_FLASH_PAGE_SIZE);
// restore updated page2
retval = ble_flash_block_write(p_page_addr2, p_swap_addr, BLE_FLASH_PAGE_SIZE/sizeof(uint32_t));
if (retval != NRF_SUCCESS)
{
app_notify(p_dest, p_src, PSTORAGE_UPDATE_OP_CODE, size, retval);
return retval;
}
}
#endif
app_notify(p_dest, p_src, PSTORAGE_UPDATE_OP_CODE, size, retval);
return retval;
}