plant_car/middleware/fee/fee_eeprom.c

/**
 * @file fee_eeprom.c
 *
 * Copyright (c) 2022 Semidrive Semiconductor.
 * All rights reserved.
 *
 * Description:
 *
 * Revision History:
 * -----------------
 */


#include <debug.h>
#include <stdlib.h>
#include <string.h>
#include <param.h>
#include <types.h>
#include <stdarg.h>

#include <lib/list.h>
#include <fee/fee_eeprom.h>

static struct list_node g_fee_list;

static struct fee_eeprom *fee_get_dev(const char *fee_name)
{
    struct fee_eeprom *fee_eeprom;

    /* matches nodes based on name */
    list_for_every_entry(&g_fee_list, fee_eeprom,
                         struct fee_eeprom, node) {
        if (!strcmp(fee_name, fee_eeprom->fee_name)) {
            return fee_eeprom;
        }
    }
    return NULL;
}

static int fee_eeprom_check(struct fee_config_eeprom *fee_con)
{
    struct disk_dev_info *disk_dev = fee_con->disk_dev;

    /* check whether the Flash capacity is supported */
    uint16_t pe_ratio = ROUNDUP(fee_con->eeprom_pe_cycles,
                                disk_dev->pe_cycles) / disk_dev->pe_cycles;
    uint16_t size_avg = fee_con->eeprom_align_size * FEE_EEPROM_SIZE_AVG;
    disk_size_t target_size = fee_con->eeprom_size * pe_ratio +
                              (fee_con->eeprom_size / size_avg) * pe_ratio * sizeof(struct fee_record_info);

    if (target_size > disk_dev->size) {
        ssdk_printf(SSDK_CRIT,
                    "fee eeprom target_size %llx actual size %llx,space size does not meet the requirements\n",
                    target_size, disk_dev->size);
        return -1;
    }

    ssdk_printf(SSDK_INFO, "fee eeprom target_size %llx actual size %llx\n",
                target_size, disk_dev->size);
    return 0;
}

int fee_register_eeprom(struct fee_eeprom *fee)
{
    int ret = 0;
    struct fee_dev *fee_dev = &fee->fee_dev;
    struct fee_config_eeprom *fee_con = &fee->fee_con;
    fee->fee_name = fee_con->fee_name;
    ssdk_printf(SSDK_INFO, "register fee eeprom device %s\n", fee->fee_name);

    if (NULL != fee_get_dev(fee->fee_name)) {
        ssdk_printf(SSDK_CRIT, "fee devicve %s already registered\n", fee->fee_name);
        return -1;
    }

    /* check the configuration */
    ret = fee_eeprom_check(fee_con);

    if (ret) {
        ssdk_printf(SSDK_CRIT, "register fee eeprom device %s\n error", fee->fee_name);
        return -1;
    }

    /* insert node */
    list_add_tail(&g_fee_list, &fee->node);

    fee_dev->disk_dev = fee_con->disk_dev;

    fee_dev->block_length = fee_con->eeprom_align_size;
    fee_dev->block_number = fee_con->eeprom_size / fee_dev->block_length;

    fee_dev->page_mode = FEE_PAGE_EEPROM;

    fee_dev->block_addr_mask = fee_con->block_addr_mask;
    fee_dev->block_addr_size = fee_con->block_addr_size;

    ret = fee_init(fee_dev);

    if (ret) {
        ssdk_printf(SSDK_CRIT, "fee eeprom %s init faild\n", fee->fee_name);
        goto error;
    }

    return ret;

error:
    if (list_in_list(&fee->node))
        list_delete(&fee->node);
    return ret;
}
int fee_unregister_eeprom(struct fee_eeprom *fee)
{
    int ret = 0;
    struct fee_dev *fee_dev = &fee->fee_dev;
    ssdk_printf(SSDK_INFO, "unregiste fee eeprom device %s\n", fee->fee_name);
    fee->fee_name = NULL;

    /* remove nodes */
    if (list_in_list(&fee->node))
        list_delete(&fee->node);

    fee_exit(fee_dev);
    return ret;
}

int fee_read_eeprom(const char *fee_name, uint32_t addr, uint8_t *data_buffer,
                    uint16_t length)
{
    int ret = 0;
    struct fee_eeprom *fee = fee_get_dev(fee_name);

    if (NULL == fee) {
        ssdk_printf(SSDK_CRIT, "no fee devicve %s\n", fee_name);
        return -1;
    }

    ssdk_printf(SSDK_INFO, "read fee eeprom device %s addr:%x length:%x\n", fee->fee_name, addr, length);
    struct fee_dev *fee_dev = &fee->fee_dev;
    struct fee_config_eeprom *fee_con = &fee->fee_con;

    if (!IS_ALIGNED(addr, fee_dev->block_length)) {
        ssdk_printf(SSDK_CRIT,
                    "fee_read eeprom addr %d not aligned to record_length %d\n",
                    addr, fee_dev->block_length);
        return -1;
    }

    uint16_t block_number = addr / fee_dev->block_length;

    if (!IS_ALIGNED(length, fee_dev->block_length)) {
        ssdk_printf(SSDK_CRIT,
                    "fee_read eeprom length %d not aligned to record_length %d\n",
                    length, fee_dev->block_length);
        return -1;
    }

    if ((addr + length) > fee_con->eeprom_size) {
        ssdk_printf(SSDK_CRIT,
                    "fee_read eeprom addr %d length %d more than eeprom capacity %d\n",
                    addr, length, fee_con->eeprom_size);
        return -1;
    }

    ret = fee_read_record_multiple(fee_dev, block_number, data_buffer, length);

    if (ret) {
        ssdk_printf(SSDK_CRIT, "fee_read_record_multiple fee_name %s addr %d error\n",
                    fee_name, addr);
        return -1;
    }

    return ret;

}

int fee_write_eeprom(const char *fee_name, uint32_t addr,
                     const uint8_t *data_buffer, uint16_t length)
{
    int ret = 0;
    struct fee_eeprom *fee = fee_get_dev(fee_name);

    if (NULL == fee) {
        ssdk_printf(SSDK_CRIT, "no fee devicve %s\n", fee_name);
        return -1;
    }

    struct fee_dev *fee_dev = &fee->fee_dev;

    struct fee_config_eeprom *fee_con = &fee->fee_con;

    ssdk_printf(SSDK_INFO, "write fee eeprom device %s addr:%x length:%x\n", fee->fee_name, addr, length);

    if (!IS_ALIGNED(addr, fee_dev->block_length)) {
        ssdk_printf(SSDK_CRIT,
                    "fee_write eeprom addr %d not aligned to record_length %d\n",
                    addr, fee_dev->block_length);
        return -1;
    }

    uint16_t block_number = addr / fee_dev->block_length;

    if (!IS_ALIGNED(length, fee_dev->block_length)) {
        ssdk_printf(SSDK_CRIT,
                    "fee_write eeprom length %d not aligned to record_length %d\n",
                    length, fee_dev->block_length);
        return -1;
    }

    if ((addr + length) > fee_con->eeprom_size) {
        ssdk_printf(SSDK_CRIT,
                    "fee_write eeprom addr %d length %d more than eeprom capacity %d\n",
                    addr, length, fee_con->eeprom_size);
        return -1;
    }

    ret = fee_write_record_multiple(fee_dev, block_number, (uint8_t *)data_buffer,
                                    length);

    if (ret) {
        ssdk_printf(SSDK_CRIT, "fee_write_record_multiple fee_name %s addr %d error\n",
                    fee_name, addr);
        return -1;
    }

    return ret;
}

int fee_init_eeprom(void)
{
    ssdk_printf(SSDK_INFO, "fee eeprom init\n");
    /* disk list node init */
    list_initialize(&g_fee_list);
    return 0;
}

int fee_exit_eeprom(void)
{
    ssdk_printf(SSDK_INFO, "fee eeprom exit\n");
    /* disk list node init */
    return 0;
}