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/*
* stm-keystore.c
* ----------
* Functions for accessing the keystore memory.
*
* Copyright (c) 2016-2017, NORDUnet A/S All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* - 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.
*
* - Neither the name of the NORDUnet nor the names of its contributors may
* be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* 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.
*/
#include "stm-init.h"
#include "stm-keystore.h"
static SPI_HandleTypeDef hspi_keystore;
struct spiflash_ctx keystore_ctx = {&hspi_keystore, KSM_PROM_CS_N_GPIO_Port, KSM_PROM_CS_N_Pin};
/* SPI1 (keystore memory) init function */
void keystore_init(void)
{
/* Set up GPIOs for the keystore memory.
* KEYSTORE_GPIO_INIT is defined in stm-keystore.h.
*/
KEYSTORE_GPIO_INIT();
hspi_keystore.Instance = SPI1;
hspi_keystore.Init.Mode = SPI_MODE_MASTER;
hspi_keystore.Init.Direction = SPI_DIRECTION_2LINES;
hspi_keystore.Init.DataSize = SPI_DATASIZE_8BIT;
hspi_keystore.Init.CLKPolarity = SPI_POLARITY_LOW;
hspi_keystore.Init.CLKPhase = SPI_PHASE_1EDGE;
hspi_keystore.Init.NSS = SPI_NSS_SOFT;
hspi_keystore.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_2;
hspi_keystore.Init.FirstBit = SPI_FIRSTBIT_MSB;
hspi_keystore.Init.TIMode = SPI_TIMODE_DISABLE;
hspi_keystore.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
hspi_keystore.Init.CRCPolynomial = 10;
HAL_SPI_Init(&hspi_keystore);
}
HAL_StatusTypeDef keystore_check_id(void)
{
return n25q128_check_id(&keystore_ctx);
}
HAL_StatusTypeDef keystore_read_data(uint32_t offset, uint8_t *buf, const uint32_t len)
{
return n25q128_read_data(&keystore_ctx, offset, buf, len);
}
HAL_StatusTypeDef keystore_write_data(uint32_t offset, const uint8_t *buf, const uint32_t len)
{
return n25q128_write_data(&keystore_ctx, offset, buf, len);
}
HAL_StatusTypeDef keystore_erase_subsector(uint32_t subsector_offset)
{
return n25q128_erase_subsector(&keystore_ctx, subsector_offset);
}
HAL_StatusTypeDef keystore_erase_sector(uint32_t sector_offset)
{
return n25q128_erase_sector(&keystore_ctx, sector_offset);
}
HAL_StatusTypeDef keystore_erase_bulk(void)
{
return n25q128_erase_bulk(&keystore_ctx);
}
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