U32 PDrvCryptoSaveDESRegisters(PUBLIC_CRYPTO_DES_DES3_CONTEXT * pDesDes3Ctx)
{
/* (1) : Save the IV if we are in CBC mode */
if (DES_CTRL_GET_MODE(INREG32(&g_pDESReg_t->DES_CTRL)) == DES_CTRL_MODE_CBC) {
pDesDes3Ctx->registers.DES_IV_L = INREG32(&g_pDESReg_t->DES_IV_L);
pDesDes3Ctx->registers.DES_IV_H = INREG32(&g_pDESReg_t->DES_IV_H);
}
return PUBLIC_CRYPTO_OPERATION_SUCCESS;
}
/*-------------------------------------------------------------------------
*Save HWA registers into the specified operation state structure
*-------------------------------------------------------------------------*/
static void PDrvCryptoSaveDESRegisters(u32 DES_CTRL,
struct PUBLIC_CRYPTO_DES_OPERATION_STATE *pDESState)
{
dprintk(KERN_INFO
"PDrvCryptoSaveDESRegisters in pDESState=%p CTRL=0x%08x\n",
pDESState, DES_CTRL);
/*Save the IV if we are in CBC mode */
if (DES_CTRL_GET_MODE(DES_CTRL) == DES_CTRL_MODE_CBC) {
pDESState->DES_IV_L = INREG32(&pDESReg_t->DES_IV_L);
pDESState->DES_IV_H = INREG32(&pDESReg_t->DES_IV_H);
}
}
U32 PDrvCryptoRestoreDESRegisters(PUBLIC_CRYPTO_DES_DES3_CONTEXT * pDesDes3Ctx)
{
/* Write the IV ctx->reg */
if (DES_CTRL_GET_MODE(INREG32(&pDesDes3Ctx->registers.DES_CTRL)) == DES_CTRL_MODE_CBC) {
OUTREG32(&g_pDESReg_t->DES_IV_L, pDesDes3Ctx->registers.DES_IV_L);
OUTREG32(&g_pDESReg_t->DES_IV_H, pDesDes3Ctx->registers.DES_IV_H);
}
/* Set the CTRL register from the context but resets the input&output ready and reserved bits */
OUTREG32(&g_pDESReg_t->DES_CTRL, pDesDes3Ctx->registers.DES_CTRL & 0x1C);
/* Set the MASK register from the context but resets reserved bits */
OUTREG32(&g_pDESReg_t->DES_MASK, pDesDes3Ctx->registers.DES_MASK & 0xFF);
return PUBLIC_CRYPTO_OPERATION_SUCCESS;
}
