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/**************************************************************************//**
*
* @copyright (C) 2020 Nuvoton Technology Corp. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2021-02-26 klcheng First version
*
******************************************************************************/
#include <rtconfig.h>
#if ((defined(BSP_USING_CRC)) && defined(RT_USING_HWCRYPTO))
#include <rtdevice.h>
#include <rtdbg.h>
#include <board.h>
#include "NuMicro.h"
#include <nu_bitutil.h>
#if defined(BSP_USING_CRC)
#include "drv_crc.h"
#endif
/* Private functions ------------------------------------------------------------*/
static rt_err_t nu_hwcrypto_create(struct rt_hwcrypto_ctx *ctx);
static void nu_hwcrypto_destroy(struct rt_hwcrypto_ctx *ctx);
static rt_err_t nu_hwcrypto_clone(struct rt_hwcrypto_ctx *des, const struct rt_hwcrypto_ctx *src);
static void nu_hwcrypto_reset(struct rt_hwcrypto_ctx *ctx);
/* Private variables ------------------------------------------------------------*/
static const struct rt_hwcrypto_ops nu_hwcrypto_ops =
{
.create = nu_hwcrypto_create,
.destroy = nu_hwcrypto_destroy,
.copy = nu_hwcrypto_clone,
.reset = nu_hwcrypto_reset,
};
/* CRC operation ------------------------------------------------------------*/
#if defined(BSP_USING_CRC)
static const struct hwcrypto_crc_ops nu_crc_ops =
{
.update = nu_crc_update,
};
#endif
/* Register crypto interface ----------------------------------------------------------*/
static rt_err_t nu_hwcrypto_create(struct rt_hwcrypto_ctx *ctx)
{
rt_err_t res = RT_EOK;
switch (ctx->type & HWCRYPTO_MAIN_TYPE_MASK)
{
#if defined(BSP_USING_CRC)
case HWCRYPTO_TYPE_CRC:
{
ctx->contex = RT_NULL;
//Setup CRC operation
((struct hwcrypto_crc *)ctx)->ops = &nu_crc_ops;
break;
}
#endif /* BSP_USING_CRC */
default:
res = -RT_ERROR;
break;
}
return res;
}
static void nu_hwcrypto_destroy(struct rt_hwcrypto_ctx *ctx)
{
if (ctx->contex)
rt_free(ctx->contex);
}
static rt_err_t nu_hwcrypto_clone(struct rt_hwcrypto_ctx *des, const struct rt_hwcrypto_ctx *src)
{
rt_err_t res = RT_EOK;
if (des->contex && src->contex)
{
rt_memcpy(des->contex, src->contex, sizeof(struct rt_hwcrypto_ctx));
}
else
return -RT_EINVAL;
return res;
}
static void nu_hwcrypto_reset(struct rt_hwcrypto_ctx *ctx)
{
/* no need to implement */
return;
}
/* Init and register nu_hwcrypto_dev */
int nu_hwcrypto_device_init(void)
{
static struct rt_hwcrypto_device nu_hwcrypto_dev;
nu_hwcrypto_dev.ops = &nu_hwcrypto_ops;
nu_hwcrypto_dev.id = 0;
nu_hwcrypto_dev.user_data = &nu_hwcrypto_dev;
#if defined(BSP_USING_CRC)
nu_crc_init();
#endif
// register hwcrypto operation
if (rt_hwcrypto_register(&nu_hwcrypto_dev, RT_HWCRYPTO_DEFAULT_NAME) != RT_EOK)
{
return -1;
}
return 0;
}
INIT_DEVICE_EXPORT(nu_hwcrypto_device_init);
#endif //#if ((defined(BSP_USING_CRC)) && defined(RT_USING_HWCRYPTO))
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