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

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2022-07-27 15:41:25 +08:00
/*
* Copyright (c) 2006-2022, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2022-07-26 Rbb666 first version
*/
#include <rtthread.h>
#include "drv_common.h"
#ifdef BSP_USING_ON_CHIP_FLASH
#include "drv_flash.h"
#if defined(RT_USING_FAL)
#include "fal.h"
#endif
#define DRV_DEBUG
#define LOG_TAG "drv.flash"
#include <drv_log.h>
static cyhal_flash_t flash_obj;
static cyhal_flash_block_info_t block_info;
static cyhal_flash_info_t flash_info;
int _flash_init(void)
{
cy_rslt_t err = CY_RSLT_SUCCESS;
/* Init Flash */
err = cyhal_flash_init(&flash_obj);
/* Handle Error */
if (CY_RSLT_SUCCESS != err)
{
LOG_E("\r\n Flash Init failed");
}
cyhal_flash_get_info(&flash_obj, &flash_info);
block_info = flash_info.blocks[flash_info.block_count - 1u];
return 0;
}
static rt_uint32_t get_page_32k(uint32_t addr)
{
rt_uint32_t page = 0;
page = RT_ALIGN_DOWN(addr, IFX_EFLASH_PAGE_SIZE);
return page;
}
/**
* @brief gets the page of a given address
* @param addr: address of the flash memory
* @retval the page of a given address
*/
static rt_uint32_t get_page_256k(uint32_t addr)
{
rt_uint32_t page = 0;
page = RT_ALIGN_DOWN(addr, IFX_FLASH_PAGE_SIZE);
return page;
}
int ifx_flash_read_32k(rt_uint32_t addr, rt_uint8_t *buf, rt_uint32_t size)
{
rt_uint32_t i;
if ((addr + size) > IFX_EFLASH_END_ADDRESS)
{
LOG_E("read outrange flash size! addr is (0x%p)", (void *)(addr + size));
return -RT_EINVAL;
}
for (i = 0; i < size; i++, buf++, addr++)
{
*buf = *(rt_uint8_t *) addr;
}
return size;
}
/**
* @brief 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 ifx_flash_read_256k(rt_uint32_t addr, rt_uint8_t *buf, rt_uint32_t size)
{
rt_uint32_t i;
if ((addr + size) > IFX_FLASH_END_ADDRESS)
{
LOG_E("read outrange flash size! addr is (0x%p)", (void *)(addr + size));
return -RT_EINVAL;
}
for (i = 0; i < size; i++, buf++, addr++)
{
*buf = *(rt_uint8_t *) addr;
}
return size;
}
/**
* @brief 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 ifx_flash_write(rt_uint32_t addr, const rt_uint8_t *buf, rt_uint32_t size)
{
rt_err_t result = RT_EOK;
rt_base_t level;
cy_rslt_t err = CY_RSLT_SUCCESS;
size_t written_size = 0;
#define BSP_FEATURE_FLASH_WRITE_SIZE 512U
if (size % BSP_FEATURE_FLASH_WRITE_SIZE)
{
LOG_E("Flash Write size must be an integer multiple of %d", BSP_FEATURE_FLASH_WRITE_SIZE);
return -RT_EINVAL;
}
while (written_size < size)
{
level = rt_hw_interrupt_disable();
/* Write code flash data*/
err = cyhal_flash_write(&flash_obj, addr + written_size, (rt_uint32_t *)(buf + written_size));
rt_hw_interrupt_enable(level);
/* Error Handle */
if (CY_RSLT_SUCCESS != err)
{
LOG_E("Write API failed");
return -RT_EIO;
}
written_size += BSP_FEATURE_FLASH_WRITE_SIZE;
}
if (result != RT_EOK)
{
return result;
}
return size;
}
int ifx_flash_erase_32k(rt_uint32_t addr, rt_uint32_t size)
{
rt_err_t result = RT_EOK;
rt_uint32_t end_addr = addr + size;
rt_uint32_t page_addr = 0;
rt_base_t level;
level = rt_hw_interrupt_disable();
if ((end_addr) > IFX_EFLASH_END_ADDRESS)
{
LOG_E("erase outrange flash size! addr is (0x%p)", (void *)(addr + size));
return -RT_EINVAL;
}
while (addr < end_addr)
{
page_addr = get_page_32k(addr);
if (cyhal_flash_erase(&flash_obj, page_addr) != CY_RSLT_SUCCESS)
{
result = -RT_ERROR;
goto __exit;
}
addr += IFX_FLASH_PAGE_SIZE;
}
rt_hw_interrupt_enable(level);
__exit:
if (result != RT_EOK)
{
return result;
}
return size;
}
/**
* @brief 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
*/
int ifx_flash_erase_256k(rt_uint32_t addr, rt_uint32_t size)
{
rt_err_t result = RT_EOK;
rt_uint32_t end_addr = addr + size;
rt_uint32_t page_addr = 0;
rt_base_t level;
level = rt_hw_interrupt_disable();
if ((end_addr) > IFX_FLASH_END_ADDRESS)
{
LOG_E("erase outrange flash size! addr is (0x%p)", (void *)(addr + size));
return -RT_EINVAL;
}
while (addr < end_addr)
{
page_addr = get_page_256k(addr);
if (cyhal_flash_erase(&flash_obj, page_addr) != CY_RSLT_SUCCESS)
{
result = -RT_ERROR;
goto __exit;
}
addr += IFX_FLASH_PAGE_SIZE;
}
rt_hw_interrupt_enable(level);
__exit:
if (result != RT_EOK)
{
return result;
}
return size;
}
#if defined(RT_USING_FAL)
static int fal_flash_read_32k(long offset, rt_uint8_t *buf, size_t size);
static int fal_flash_read_256k(long offset, rt_uint8_t *buf, size_t size);
static int fal_flash_write_32k(long offset, const rt_uint8_t *buf, size_t size);
static int fal_flash_write_256k(long offset, const rt_uint8_t *buf, size_t size);
static int fal_flash_erase_32k(long offset, size_t size);
static int fal_flash_erase_256k(long offset, size_t size);
const struct fal_flash_dev ifx_onchip_flash_32k =
{
"onchip_flash_32k",
IFX_EFLASH_START_ADRESS,
IFX_EFLASH_SIZE,
IFX_EFLASH_PAGE_SIZE,
{
NULL,
fal_flash_read_32k,
fal_flash_write_32k,
fal_flash_erase_32k
}
};
const struct fal_flash_dev ifx_onchip_flash_256k =
{
"onchip_flash_256k",
IFX_FLASH_START_ADRESS,
IFX_FLASH_SIZE,
IFX_FLASH_PAGE_SIZE,
{
_flash_init,
fal_flash_read_256k,
fal_flash_write_256k,
fal_flash_erase_256k
}
};
static int fal_flash_read_32k(long offset, rt_uint8_t *buf, size_t size)
{
return ifx_flash_read_32k(ifx_onchip_flash_32k.addr + offset, buf, size);
}
static int fal_flash_read_256k(long offset, rt_uint8_t *buf, size_t size)
{
return ifx_flash_read_256k(ifx_onchip_flash_256k.addr + offset, buf, size);
}
static int fal_flash_write_32k(long offset, const rt_uint8_t *buf, size_t size)
{
return ifx_flash_write(ifx_onchip_flash_32k.addr + offset, buf, size);
}
static int fal_flash_write_256k(long offset, const rt_uint8_t *buf, size_t size)
{
return ifx_flash_write(ifx_onchip_flash_256k.addr + offset, buf, size);
}
static int fal_flash_erase_32k(long offset, size_t size)
{
return ifx_flash_erase_32k(ifx_onchip_flash_32k.addr + offset, size);
}
static int fal_flash_erase_256k(long offset, size_t size)
{
return ifx_flash_erase_256k(ifx_onchip_flash_256k.addr + offset, size);
}
#if defined(BSP_USING_ON_CHIP_FLASH)
static int rt_hw_on_chip_flash_init(void)
{
fal_init();
return RT_EOK;
}
INIT_ENV_EXPORT(rt_hw_on_chip_flash_init);
int flash64k_test(void)
{
#define TEST_OFF (ifx_onchip_flash_256k.len - 0x40000)
const struct fal_partition *param;
uint8_t write_buffer[512U] = {0};
uint8_t read_buffer[512U] = {0};
/* Set write buffer, clear read buffer */
for (uint16_t index = 0; index < 512U; index++)
{
write_buffer[index] = index;
read_buffer[index] = 0;
}
param = fal_partition_find("app");
if (param == RT_NULL)
{
LOG_E("not find partition app!");
return -1;
}
LOG_I("Erase Start...");
fal_partition_erase(param, TEST_OFF, 0x40000);
LOG_I("Erase succeeded!");
LOG_I("Write Start...");
fal_partition_write(param, TEST_OFF, write_buffer, sizeof(write_buffer));
LOG_I("Write succeeded!");
LOG_I("Read Start...");
fal_partition_read(param, TEST_OFF, read_buffer, 128U);
LOG_I("Read succeeded!");
for (int i = 0; i < 128U; i++)
{
if (read_buffer[i] != write_buffer[i])
{
LOG_E("Data verification failed!");
return -1;
}
}
LOG_I("Data verification succeeded!");
return 0;
}
MSH_CMD_EXPORT(flash64k_test, "drv flash64k test.");
int flash32k_test(void)
{
#define TEST32_OFF (ifx_onchip_flash_32k.len - 0x8000)
const struct fal_partition *param;
uint8_t write_buffer[512U] = {0};
uint8_t read_buffer[512U] = {0};
/* Set write buffer, clear read buffer */
for (uint16_t index = 0; index < 512U; index++)
{
write_buffer[index] = index;
read_buffer[index] = 0;
}
param = fal_partition_find("param");
if (param == RT_NULL)
{
LOG_E("not find partition param!");
return -1;
}
LOG_I("Erase Start...");
fal_partition_erase(param, TEST32_OFF, 0x8000);
LOG_I("Erase succeeded!");
LOG_I("Write Start...");
fal_partition_write(param, TEST32_OFF, write_buffer, sizeof(write_buffer));
LOG_I("Write succeeded!");
LOG_I("Read Start...");
fal_partition_read(param, TEST32_OFF, read_buffer, 128U);
LOG_I("Read succeeded!");
for (int i = 0; i < 128U; i++)
{
if (read_buffer[i] != write_buffer[i])
{
LOG_E("Data verification failed!");
return -1;
}
}
LOG_I("Data verification succeeded!");
return 0;
}
MSH_CMD_EXPORT(flash32k_test, "drv flash32k test.");
#endif
#endif
#endif /* BSP_USING_ON_CHIP_FLASH */