vos/ambiq-hal-sys/ambiq-sparkfun-sdk/devices/am_devices_spiflash.h
2022-10-23 23:45:43 -07:00

152 lines
6.0 KiB
C

//*****************************************************************************
//
//! @file am_devices_spiflash.h
//!
//! @brief Generic spiflash driver.
//
//*****************************************************************************
//*****************************************************************************
//
// Copyright (c) 2020, Ambiq Micro
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its
// contributors may be used to endorse or promote products derived from this
// software without specific prior written permission.
//
// Third party software included in this distribution is subject to the
// additional license terms as defined in the /docs/licenses directory.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// This is part of revision 2.4.2 of the AmbiqSuite Development Package.
//
//*****************************************************************************
#ifndef AM_DEVICES_SPIFLASH_H
#define AM_DEVICES_SPIFLASH_H
#ifdef __cplusplus
extern "C"
{
#endif
//*****************************************************************************
//
// Global definitions for flash commands
//
//*****************************************************************************
#define AM_DEVICES_SPIFLASH_WREN 0x06 // Write enable
#define AM_DEVICES_SPIFLASH_WRDI 0x04 // Write disable
#define AM_DEVICES_SPIFLASH_RDID 0x9E // Read Identification
#define AM_DEVICES_SPIFLASH_RDRSR 0x05 // Read status register
#define AM_DEVICES_SPIFLASH_WRSR 0x01 // Write status register
#define AM_DEVICES_SPIFLASH_READ 0x03 // Read data bytes
#define AM_DEVICES_SPIFLASH_PP 0x02 // Page program
#define AM_DEVICES_SPIFLASH_SE 0xD8 // Sector Erase
#define AM_DEVICES_SPIFLASH_BE 0xC7 // Bulk Erase
//*****************************************************************************
//
// Global definitions for the flash status register
//
//*****************************************************************************
#define AM_DEVICES_SPIFLASH_WEL 0x02 // Write enable latch
#define AM_DEVICES_SPIFLASH_WIP 0x01 // Write in progress
//*****************************************************************************
//
// Global definitions for the flash size information
//
//*****************************************************************************
#define AM_DEVICES_SPIFLASH_PAGE_SIZE 0x100 //256 bytes, minimum program unit
#define AM_DEVICES_SPIFLASH_SUBSECTOR_SIZE 0x1000 //4096 bytes
#define AM_DEVICES_SPIFLASH_SECTOR_SIZE 0x10000 //65536 bytes
//*****************************************************************************
//
// Function pointers for SPI write and read.
//
//*****************************************************************************
typedef bool (*am_devices_spiflash_write_t)(uint32_t ui32Module,
uint32_t ui32ChipSelect,
uint32_t *pui32Data,
uint32_t ui32NumBytes,
uint32_t ui32Options);
typedef bool (*am_devices_spiflash_read_t)(uint32_t ui32Module,
uint32_t ui32ChipSelect,
uint32_t *pui32Data,
uint32_t ui32NumBytes,
uint32_t ui32Options);
//*****************************************************************************
//
// Device structure used for communication.
//
//*****************************************************************************
typedef struct
{
//
// Module number to use for IOM access.
//
uint32_t ui32IOMModule;
//
// Chip Select number to use for IOM access.
//
uint32_t ui32ChipSelect;
}
am_devices_spiflash_t;
//*****************************************************************************
//
// External function definitions.
//
//*****************************************************************************
extern void am_devices_spiflash_init(am_devices_spiflash_t *psIOMSettings);
extern uint8_t am_devices_spiflash_status(void);
extern uint32_t am_devices_spiflash_id(void);
extern void am_devices_spiflash_read(uint8_t *pui8RxBuffer,
uint32_t ui32ReadAddress,
uint32_t ui32NumBytes);
extern void am_devices_spiflash_write(uint8_t *ui8TxBuffer,
uint32_t ui32WriteAddress,
uint32_t ui32NumBytes);
extern void am_devices_spiflash_mass_erase(void);
extern void am_devices_spiflash_sector_erase(uint32_t ui32SectorAddress);
#ifdef __cplusplus
}
#endif
#endif // AM_DEVICES_SPIFLASH_H