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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013, 2014 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "supervisor/internal_flash.h"
#include <stdint.h>
#include <string.h>
#include "extmod/vfs.h"
#include "extmod/vfs_fat.h"
#include "py/mphal.h"
#include "py/obj.h"
#include "py/runtime.h"
#include "lib/oofatfs/ff.h"
#ifdef SAMD21
#include "hpl/pm/hpl_pm_base.h"
#endif
#include "hal/include/hal_flash.h"
#include "supervisor/shared/rgb_led_status.h"
static struct flash_descriptor supervisor_flash_desc;
void supervisor_flash_init(void) {
// Activity LED for flash writes.
#ifdef MICROPY_HW_LED_MSC
struct port_config pin_conf;
port_get_config_defaults(&pin_conf);
pin_conf.direction = PORT_PIN_DIR_OUTPUT;
port_pin_set_config(MICROPY_HW_LED_MSC, &pin_conf);
port_pin_set_output_level(MICROPY_HW_LED_MSC, false);
#endif
#ifdef SAMD51
hri_mclk_set_AHBMASK_NVMCTRL_bit(MCLK);
#endif
#ifdef SAMD21
_pm_enable_bus_clock(PM_BUS_APBB, NVMCTRL);
#endif
flash_init(&supervisor_flash_desc, NVMCTRL);
}
uint32_t supervisor_flash_get_block_size(void) {
return FILESYSTEM_BLOCK_SIZE;
}
uint32_t supervisor_flash_get_block_count(void) {
return INTERNAL_FLASH_PART1_NUM_BLOCKS;
}
void supervisor_flash_flush(void) {
}
void supervisor_flash_release_cache(void) {
}
void flash_flush(void) {
supervisor_flash_flush();
}
static int32_t convert_block_to_flash_addr(uint32_t block) {
if (0 <= block && block < INTERNAL_FLASH_PART1_NUM_BLOCKS) {
// a block in partition 1
return CIRCUITPY_INTERNAL_FLASH_FILESYSTEM_START_ADDR + block * FILESYSTEM_BLOCK_SIZE;
}
// bad block
return -1;
}
bool supervisor_flash_read_block(uint8_t *dest, uint32_t block) {
// non-MBR block, get data from flash memory
int32_t src = convert_block_to_flash_addr(block);
if (src == -1) {
// bad block number
return false;
}
int32_t error_code = flash_read(&supervisor_flash_desc, src, dest, FILESYSTEM_BLOCK_SIZE);
return error_code == ERR_NONE;
}
bool supervisor_flash_write_block(const uint8_t *src, uint32_t block) {
#ifdef MICROPY_HW_LED_MSC
port_pin_set_output_level(MICROPY_HW_LED_MSC, true);
#endif
temp_status_color(ACTIVE_WRITE);
// non-MBR block, copy to cache
int32_t dest = convert_block_to_flash_addr(block);
if (dest == -1) {
// bad block number
return false;
}
int32_t error_code;
error_code = flash_erase(&supervisor_flash_desc,
dest,
FILESYSTEM_BLOCK_SIZE / flash_get_page_size(&supervisor_flash_desc));
if (error_code != ERR_NONE) {
return false;
}
error_code = flash_append(&supervisor_flash_desc, dest, src, FILESYSTEM_BLOCK_SIZE);
if (error_code != ERR_NONE) {
return false;
}
clear_temp_status();
#ifdef MICROPY_HW_LED_MSC
port_pin_set_output_level(MICROPY_HW_LED_MSC, false);
#endif
return true;
}
mp_uint_t supervisor_flash_read_blocks(uint8_t *dest, uint32_t block_num, uint32_t num_blocks) {
for (size_t i = 0; i < num_blocks; i++) {
if (!supervisor_flash_read_block(dest + i * FILESYSTEM_BLOCK_SIZE, block_num + i)) {
return 1; // error
}
}
return 0; // success
}
mp_uint_t supervisor_flash_write_blocks(const uint8_t *src, uint32_t block_num, uint32_t num_blocks) {
for (size_t i = 0; i < num_blocks; i++) {
if (!supervisor_flash_write_block(src + i * FILESYSTEM_BLOCK_SIZE, block_num + i)) {
return 1; // error
}
}
return 0; // success
}