/*
ChibiOS - Copyright (C) 2016 Giovanni Di Sirio
This file is part of ChibiOS.
ChibiOS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file m25q.h
* @brief Micron serial flash driver header.
*
* @addtogroup m25q
* @{
*/
#ifndef M25Q_H
#define M25Q_H
#include "hal_jesd216_flash.h"
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
/**
* @name Command codes
* @{
*/
#define M25Q_CMD_RESET_ENABLE 0x66
#define M25Q_CMD_RESET_MEMORY 0x99
#define M25Q_CMD_READ_ID 0x9F
#define M25Q_CMD_MULTIPLE_IO_READ_ID 0xAF
#define M25Q_CMD_READ_DISCOVERY_PARAMETER 0x5A
#define M25Q_CMD_READ 0x03
#define M25Q_CMD_FAST_READ 0x0B
#define M25Q_CMD_WRITE_ENABLE 0x06
#define M25Q_CMD_WRITE_DISABLE 0x04
#define M25Q_CMD_READ_STATUS_REGISTER 0x05
#define M25Q_CMD_WRITE_STATUS_REGISTER 0x01
#define M25Q_CMD_READ_LOCK_REGISTER 0xE8
#define M25Q_CMD_WRITE_LOCK_REGISTER 0xE5
#define M25Q_CMD_READ_FLAG_STATUS_REGISTER 0x70
#define M25Q_CMD_CLEAR_FLAG_STATUS_REGISTER 0x50
#define M25Q_CMD_READ_NV_CONFIGURATION_REGISTER 0xB5
#define M25Q_CMD_WRITE_NV_CONFIGURATION_REGISTER 0xB1
#define M25Q_CMD_READ_V_CONF_REGISTER 0x85
#define M25Q_CMD_WRITE_V_CONF_REGISTER 0x81
#define M25Q_CMD_READ_ENHANCED_V_CONF_REGISTER 0x65
#define M25Q_CMD_WRITE_ENHANCED_V_CONF_REGISTER 0x61
#define M25Q_CMD_PAGE_PROGRAM 0x02
#define M25Q_CMD_SUBSECTOR_ERASE 0x20
#define M25Q_CMD_SECTOR_ERASE 0xD8
#define M25Q_CMD_BULK_ERASE 0xC7
#define M25Q_CMD_PROGRAM_ERASE_RESUME 0x7A
#define M25Q_CMD_PROGRAM_ERASE_SUSPEND 0x75
#define M25Q_CMD_READ_OTP_ARRAY 0x4B
#define M25Q_CMD_PROGRAM_OTP_ARRAY 0x42
/** @} */
/**
* @name Flags status register bits
* @{
*/
#define M25Q_FLAGS_PROGRAM_ERASE 0x80U
#define M25Q_FLAGS_ERASE_SUSPEND 0x40U
#define M25Q_FLAGS_ERASE_ERROR 0x20U
#define M25Q_FLAGS_PROGRAM_ERROR 0x10U
#define M25Q_FLAGS_VPP_ERROR 0x08U
#define M25Q_FLAGS_PROGRAM_SUSPEND 0x04U
#define M25Q_FLAGS_PROTECTION_ERROR 0x02U
#define M25Q_FLAGS_RESERVED 0x01U
#define M25Q_FLAGS_ALL_ERRORS (M25Q_FLAGS_ERASE_ERROR | \
M25Q_FLAGS_PROGRAM_ERROR | \
M25Q_FLAGS_VPP_ERROR | \
M25Q_FLAGS_PROTECTION_ERROR)
/** @} */
/**
* @name Bus interface.
* @{
*/
#define M25Q_BUS_MODE_SPI 0
#define M25Q_BUS_MODE_QSPI1L 1
#define M25Q_BUS_MODE_QSPI2L 2
#define M25Q_BUS_MODE_QSPI4L 4
/** @} */
/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
/**
* @name Configuration options
* @{
*/
/**
* @brief Physical transport interface.
*/
#if !defined(M25Q_USE_SPI) || defined(__DOXYGEN__)
#define M25Q_BUS_MODE M25Q_BUS_MODE_QSPI4L
#endif
/**
* @brief Number of dummy cycles for fast read (1..15).
* @details This is the number of dummy cycles to be used for fast read
* operations.
*/
#if !defined(M25Q_READ_DUMMY_CYCLES) || defined(__DOXYGEN__)
#define M25Q_READ_DUMMY_CYCLES 8
#endif
/**
* @brief Switch QSPI bus width on initialization.
* @details A bus width initialization is performed by writing the
* Enhanced Volatile Configuration Register. If the flash
* device is configured using the Non Volatile Configuration
* Register then this option is not required.
* @note This option is only valid in QSPI bus modes.
*/
#if !defined(M25Q_SWITCH_WIDTH) || defined(__DOXYGEN__)
#define M25Q_SWITCH_WIDTH TRUE
#endif
/**
* @brief Shared bus switch.
* @details If set to @p TRUE the device acquires bus ownership
* on each transaction.
* @note Requires @p SPI_USE_MUTUAL_EXCLUSION or
* @p SPI_USE_MUTUAL_EXCLUSION.
*/
#if !defined(M25Q_SHARED_BUS) || defined(__DOXYGEN__)
#define M25Q_SHARED_BUS TRUE
#endif
/**
* @brief Delays insertions.
* @details If enabled this options inserts delays into the flash waiting
* routines releasing some extra CPU time for threads with lower
* priority, this may slow down the driver a bit however.
*/
#if !defined(M25Q_NICE_WAITING) || defined(__DOXYGEN__)
#define M25Q_NICE_WAITING TRUE
#endif
/**
* @brief Uses 4kB sub-sectors rather than 64kB sectors.
*/
#if !defined(M25Q_USE_SUB_SECTORS) || defined(__DOXYGEN__)
#define M25Q_USE_SUB_SECTORS FALSE
#endif
/**
* @brief Supported JEDEC manufacturer identifiers.
*/
#if !defined(M25Q_SUPPORTED_MANUFACTURE_IDS) || defined(__DOXYGEN__)
#define M25Q_SUPPORTED_MANUFACTURE_IDS {0x20}
#endif
/**
* @brief Supported memory type identifiers.
*/
#if !defined(M25Q_SUPPORTED_MEMORY_TYPE_IDS) || defined(__DOXYGEN__)
#define M25Q_SUPPORTED_MEMORY_TYPE_IDS {0xBA, 0xBB}
#endif
/** @} */
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
#if (M25Q_BUS_MODE == M25Q_BUS_MODE_SPI) && (HAL_USE_SPI == FALSE)
#error "M25Q_BUS_MODE_SPI requires HAL_USE_SPI"
#endif
#if (M25Q_BUS_MODE != M25Q_BUS_MODE_SPI) && (HAL_USE_QSPI == FALSE)
#error "M25Q_BUS_MODE_QSPIxL requires HAL_USE_QSPI"
#endif
#if (M25Q_BUS_MODE == M25Q_BUS_MODE_SPI) && \
(M25Q_SHARED_SPI == TRUE) && \
(SPI_USE_MUTUAL_EXCLUSION == FALSE)
#error "M25Q_SHARED_SPI requires SPI_USE_MUTUAL_EXCLUSION"
#endif
#if (M25Q_BUS_MODE != M25Q_BUS_MODE_SPI) && \
(M25Q_BUS_MODE != M25Q_BUS_MODE_QSPI1L) && \
(M25Q_BUS_MODE != M25Q_BUS_MODE_QSPI2L) && \
(M25Q_BUS_MODE != M25Q_BUS_MODE_QSPI4L)
#error "invalid M25Q_BUS_MODE selected"
#endif
#if (M25Q_READ_DUMMY_CYCLES < 1) || (M25Q_READ_DUMMY_CYCLES > 15)
#error "invalid M25Q_READ_DUMMY_CYCLES value (1..15)"
#endif
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
/**
* @brief Type of a M25Q configuration structure.
*/
typedef struct {
#if (M25Q_BUS_MODE != M25Q_BUS_MODE_SPI) || defined(__DOXYGEN__)
/**
* @brief QSPI driver associated to this instance.
*/
QSPIDriver *qspip;
/**
* @brief QSPI configuration associated to this instance.
*/
const QSPIConfig *qspicfg;
#else
/**
* @brief SPI driver associated to this instance.
*/
SPIDriver *spip;
/**
* @brief SPI configuration associated to this instance.
*/
const SPIConfig *spicfg;
#endif
} M25QConfig;
/**
* @brief @p M25Q specific methods.
*/
#define _m25q_methods \
_jesd216_flash_methods
/**
* @extends JESD216FlashVMT
*
* @brief @p M25Q virtual methods table.
*/
struct M25QDriverVMT {
_m25q_methods
};
/**
* @extends JESD216Flash
*
* @brief Type of M25Q flash class.
*/
typedef struct {
/**
* @brief M25QDriver Virtual Methods Table.
*/
const struct M25QDriverVMT *vmt;
_jesd216_flash_data
/**
* @brief Current configuration data.
*/
const M25QConfig *config;
#if (M25Q_BUS_MODE != M25Q_BUS_MODE_SPI) || defined(__DOXYGEN__)
/**
* @brief Command width flags to be used for commands sent over QSPI.
*/
uint32_t qspi_mode;
#endif
/**
* @brief Device ID and unique ID.
*/
uint8_t device_id[20];
} M25QDriver;
/*===========================================================================*/
/* Driver macros. */
/*===========================================================================*/
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#ifdef __cplusplus
extern "C" {
#endif
void m25qObjectInit(M25QDriver *devp);
void m25qStart(M25QDriver *devp, const M25QConfig *config);
void m25qStop(M25QDriver *devp);
#ifdef __cplusplus
}
#endif
#endif /* M25Q_H */
/** @} */