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/*
* SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <stdint.h>
#include "sdkconfig.h"
#include "esp_err.h"
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Structure for flash dummy bits.
* For some flash chips, dummy bits are configurable under different conditions.
*/
typedef struct {
uint8_t dio_dummy;
uint8_t dout_dummy;
uint8_t qio_dummy;
uint8_t qout_dummy;
uint8_t fastrd_dummy;
} spi_flash_hpm_dummy_conf_t;
typedef enum {
SPI_FLASH_HPM_CMD_NEEDED, // Means that in the certain condition, flash needs to enter the high performance mode by command.
SPI_FLASH_HPM_DUMMY_NEEDED, // Means that in the certain condition, flash needs to enter the high performance mode by adjusting dummy.
SPI_FLASH_HPM_WRITE_SR_NEEDED, // Means that in the certain condition, flash needs to enter the high performance mode by writing status register.
SPI_FLASH_HPM_UNNEEDED, // Means that flash doesn't need to enter the high performance mode.
SPI_FLASH_HPM_BEYOND_LIMIT, // Means that flash has no capability to meet that condition.
} spi_flash_requirement_t;
typedef void (*spi_flash_hpm_enable_fn_t)(void);
typedef esp_err_t (*spi_flash_hpf_check_fn_t)(void);
typedef void (*spi_flash_get_chip_dummy_fn_t)(spi_flash_hpm_dummy_conf_t *dummy_conf);
typedef esp_err_t (*spi_flash_hpm_probe_fn_t)(uint32_t flash_id);
typedef spi_flash_requirement_t (*spi_flash_hpm_chip_requirement_check_t)(uint32_t flash_id, uint32_t freq_mhz, int voltage_mv, int temperature);
typedef struct __attribute__((packed))
{
const char *method; /* Flash HPM method */
spi_flash_hpm_probe_fn_t probe;
spi_flash_hpm_chip_requirement_check_t chip_hpm_requirement_check;
spi_flash_hpm_enable_fn_t flash_hpm_enable;
spi_flash_hpf_check_fn_t flash_hpf_check;
spi_flash_get_chip_dummy_fn_t flash_get_dummy;
} spi_flash_hpm_info_t;
/**
* @brief Enum for user to select valid wrap size.
*/
typedef enum {
FLASH_WRAP_SIZE_8B = 8,
FLASH_WRAP_SIZE_16B = 16,
FLASH_WRAP_SIZE_32B = 32,
FLASH_WRAP_SIZE_64B = 64,
} spi_flash_wrap_size_t;
/**
* @brief Probe flash wrap method
*
* @param flash_id Flash chip ID
*
* @return ESP_OK: If succeed
*/
typedef esp_err_t (*spi_flash_wrap_probe_fn_t)(uint32_t flash_id);
/**
* @brief Set flash wrap
*
* @param wrap_size: wrap_size
*
* @return ESP_OK: If succeed
*/
typedef esp_err_t (*spi_flash_wrap_set_fn_t)(spi_flash_wrap_size_t wrap_size);
/**
* @brief Clear flash wrap.
*
* @return ESP_OK: If succeed
*/
typedef esp_err_t (*spi_flash_wrap_clr_fn_t)(void);
typedef struct __attribute__((packed))
{
const char *method;
spi_flash_wrap_probe_fn_t probe;
spi_flash_wrap_set_fn_t chip_wrap_set;
spi_flash_wrap_clr_fn_t chip_wrap_clr;
} spi_flash_wrap_info_t;
/**
* Array of known flash chips and method to enable flash high performance mode.
*
* Users can override this array.
*/
extern const spi_flash_hpm_info_t __attribute__((weak)) spi_flash_hpm_enable_list[];
#ifdef __cplusplus
}
#endif
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