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rt-thread-official/bsp/renesas/libraries/HAL_Drivers/drv_flash.c

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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2021-11-30 flybreak first version
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "board.h"
#include "hal_data.h"
#include "drv_common.h"
#if defined(RT_USING_FAL)
#include "fal.h"
#endif
//#define DRV_DEBUG
#define LOG_TAG "drv.flash"
#ifdef DRV_DEBUG
#define DBG_LVL DBG_LOG
#else
#define DBG_LVL DBG_INFO
#endif /* DRV_DEBUG */
#include <rtdbg.h>
#if BSP_FEATURE_FLASH_HP_VERSION
/* FLASH API */
#define R_FLASH_Open R_FLASH_HP_Open
#define R_FLASH_Reset R_FLASH_HP_Reset
#define R_FLASH_Write R_FLASH_HP_Write
#define R_FLASH_Erase R_FLASH_HP_Erase
#define R_FLASH_StartUpAreaSelect R_FLASH_HP_StartUpAreaSelect
/* BSP_FEATURE_FLASH */
#define FLASH_CF_WRITE_SIZE BSP_FEATURE_FLASH_HP_CF_WRITE_SIZE
#else /* FLASH LP */
/* FLASH API */
#define R_FLASH_Open R_FLASH_LP_Open
#define R_FLASH_Reset R_FLASH_LP_Reset
#define R_FLASH_Write R_FLASH_LP_Write
#define R_FLASH_Erase R_FLASH_LP_Erase
#define R_FLASH_StartUpAreaSelect R_FLASH_LP_StartUpAreaSelect
/* BSP_FEATURE_FLASH */
#define FLASH_CF_WRITE_SIZE BSP_FEATURE_FLASH_LP_CF_WRITE_SIZE
#endif
int _flash_init(void)
{
fsp_err_t err = FSP_SUCCESS;
/* Open Flash_HP */
err = R_FLASH_Open(&g_flash_ctrl, &g_flash_cfg);
/* Handle Error */
if (FSP_SUCCESS != err)
{
LOG_E("\r\n Flah_HP_Open API failed");
}
/* Setup Default Block 0 as Startup Setup Block */
err = R_FLASH_StartUpAreaSelect(&g_flash_ctrl, FLASH_STARTUP_AREA_BLOCK0, true);
if (err != FSP_SUCCESS)
{
LOG_E("\r\n Flah_HP_StartUpAreaSelect API failed");
}
return 0;
}
/**
* Read data from flash.
* @note This operation's units is word.
*
* @param addr flash address
* @param buf buffer to store read data
* @param size read bytes size
*
* @return result
*/
int _flash_read(rt_uint32_t addr, rt_uint8_t *buf, size_t size)
{
size_t i;
for (i = 0; i < size; i++, buf++, addr++)
{
*buf = *(rt_uint8_t *) addr;
}
return size;
}
/**
* Write data to flash.
* @note This operation's units is word.
* @note This operation must after erase. @see flash_erase.
*
* @param addr flash address
* @param buf the write data buffer
* @param size write bytes size
*
* @return result
*/
int _flash_write(rt_uint32_t addr, const rt_uint8_t *buf, size_t size)
{
rt_err_t result = RT_EOK;
rt_base_t level;
fsp_err_t err = FSP_SUCCESS;
size_t written_size = 0;
if (size % FLASH_CF_WRITE_SIZE)
{
LOG_E("Flash Write size must be an integer multiple of %d", FLASH_CF_WRITE_SIZE);
}
while (written_size < size)
{
level = rt_hw_interrupt_disable();
R_FLASH_Reset(&g_flash_ctrl);
/* Write code flash data*/
err = R_FLASH_Write(&g_flash_ctrl, (uint32_t)(buf + written_size), addr + written_size, FLASH_CF_WRITE_SIZE);
rt_hw_interrupt_enable(level);
/* Error Handle */
if (FSP_SUCCESS != err)
{
LOG_E("Write API failed");
return -RT_EIO;
}
written_size += FLASH_CF_WRITE_SIZE;
}
if (result != RT_EOK)
{
return result;
}
return size;
}
typedef bool (*block_func)(int no, size_t addr, size_t size, void *parm1, void *parm2, void *parm3);
void fal_block_iter(const struct fal_flash_dev *flash, block_func func, void *parm1, void *parm2, void *parm3)
{
int no = 0;
size_t addr = flash->addr;
for (int i = 0; i < FAL_DEV_BLK_MAX; i++)
{
/* blocks[i] */
const struct flash_blk *cur_blk = &flash->blocks[i];
if (cur_blk->size == 0 || cur_blk->count == 0)
{
break;
}
int j = cur_blk->count;
while (j--)
{
/* block_no */
if (func(no, addr, cur_blk->size, parm1, parm2, parm3) == true)
{
return;
}
addr += cur_blk->size;
no ++;
}
}
}
bool calculate_block_num(int no, size_t addr, size_t size, void *erase_addr, void *erase_size, void *number)
{
rt_uint32_t e_addr = (rt_uint32_t)erase_addr;
size_t e_size = (size_t)erase_size;
int *i = (int *)number;
LOG_D("block_num: no: %d, addr is (0x%p), size: %d\n, i:%d", no, addr, size, *i);
LOG_D("erase_addr: (0x%p), erase_size: %d\n", e_addr, e_size);
if (e_addr >= addr && e_addr < addr + size)
{
(*i) ++;
return false;
}
else if (addr > e_addr && addr < e_addr + e_size)
{
(*i) ++;
return false;
}
else if (addr >= e_addr + e_size)
{
return true;
}
return false;
}
/**
* Erase data on flash.
* @note This operation is irreversible.
* @note This operation's units is different which on many chips.
*
* @param addr flash address
* @param size erase bytes size
*
* @return result
*/
#if BSP_FEATURE_FLASH_HP_VERSION
int _flash_hp0_erase(rt_uint32_t addr, size_t size)
#else
int _flash_lp_erase(rt_uint32_t addr, size_t size)
#endif
{
fsp_err_t err = FSP_SUCCESS;
rt_base_t level;
int block_num = 0;
if ((addr + size) > BSP_FEATURE_FLASH_CODE_FLASH_START + BSP_ROM_SIZE_BYTES)
{
LOG_E("ERROR: erase outrange flash size! addr is (0x%p)\n", (void *)(addr + size));
return -RT_EINVAL;
}
if (size < 1)
{
return -RT_EINVAL;
}
level = rt_hw_interrupt_disable();
R_FLASH_Reset(&g_flash_ctrl);
fal_block_iter(&_onchip_flash_hp0, &calculate_block_num, (void *)addr, (void *)size, &block_num);
/* Erase Block */
#if BSP_FEATURE_FLASH_HP_VERSION
err = R_FLASH_Erase(&g_flash_ctrl,
RT_ALIGN_DOWN(addr, BSP_FEATURE_FLASH_HP_CF_REGION0_BLOCK_SIZE),
block_num);
#else
err = R_FLASH_Erase(&g_flash_ctrl,
RT_ALIGN_DOWN(addr, BSP_FEATURE_FLASH_LP_CF_BLOCK_SIZE),
((size - 1) / BSP_FEATURE_FLASH_LP_CF_BLOCK_SIZE + 1));
#endif
rt_hw_interrupt_enable(level);
if (err != FSP_SUCCESS)
{
LOG_E("Erase failed:addr (0x%p), size %d", (void *)addr, size);
return -RT_EIO;
}
LOG_D("erase done: addr (0x%p), size %d", (void *)addr, size);
return size;
}
#if defined(RT_USING_FAL)
#if BSP_FEATURE_FLASH_HP_VERSION
static int fal_flash_hp0_read(long offset, rt_uint8_t *buf, size_t size);
static int fal_flash_hp0_write(long offset, const rt_uint8_t *buf, size_t size);
static int fal_flash_hp0_erase(long offset, size_t size);
const struct fal_flash_dev _onchip_flash_hp0 =
{
"onchip_flash_hp0",
BSP_FEATURE_FLASH_CODE_FLASH_START,
BSP_ROM_SIZE_BYTES,
BSP_FEATURE_FLASH_HP_CF_REGION0_BLOCK_SIZE,
{
_flash_init,
fal_flash_hp0_read,
fal_flash_hp0_write,
fal_flash_hp0_erase
},
(BSP_FEATURE_FLASH_HP_CF_WRITE_SIZE * 8)
, {
{
.size = BSP_FEATURE_FLASH_HP_CF_REGION0_BLOCK_SIZE,
.count = BSP_FEATURE_FLASH_HP_CF_REGION0_SIZE / BSP_FEATURE_FLASH_HP_CF_REGION0_BLOCK_SIZE
},
{
.size = BSP_FEATURE_FLASH_HP_CF_REGION1_BLOCK_SIZE,
.count = (BSP_ROM_SIZE_BYTES - BSP_FEATURE_FLASH_HP_CF_REGION0_SIZE) / BSP_FEATURE_FLASH_HP_CF_REGION1_BLOCK_SIZE
},
}
};
/* code flash region0 */
static int fal_flash_hp0_read(long offset, rt_uint8_t *buf, size_t size)
{
return _flash_read(_onchip_flash_hp0.addr + offset, buf, size);
}
static int fal_flash_hp0_write(long offset, const rt_uint8_t *buf, size_t size)
{
return _flash_write(_onchip_flash_hp0.addr + offset, buf, size);
}
static int fal_flash_hp0_erase(long offset, size_t size)
{
return _flash_hp0_erase(_onchip_flash_hp0.addr + offset, size);
}
#else /* flash lp code flash */
static int fal_flash_lp_read(long offset, rt_uint8_t *buf, size_t size);
static int fal_flash_lp_write(long offset, const rt_uint8_t *buf, size_t size);
static int fal_flash_lp_erase(long offset, size_t size);
const struct fal_flash_dev _onchip_flash_lp =
{
"onchip_flash_lp",
FLASH_START_ADDRESS,
BSP_ROM_SIZE_BYTES,
BSP_FEATURE_FLASH_LP_CF_BLOCK_SIZE,
{
_flash_init,
fal_flash_lp_read,
fal_flash_lp_write,
fal_flash_lp_erase
},
(BSP_FEATURE_FLASH_LP_CF_WRITE_SIZE * 8)
};
static int fal_flash_lp_read(long offset, rt_uint8_t *buf, size_t size)
{
return _flash_read(_onchip_flash_lp.addr + offset, buf, size);
}
static int fal_flash_lp_write(long offset, const rt_uint8_t *buf, size_t size)
{
return _flash_write(_onchip_flash_lp.addr + offset, buf, size);
}
static int fal_flash_lp_erase(long offset, size_t size)
{
return _flash_lp_erase(_onchip_flash_lp.addr + offset, size);
}
#endif
#endif
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