kopia lustrzana https://github.com/espressif/esp-idf
128 wiersze
3.5 KiB
C
128 wiersze
3.5 KiB
C
/*
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* SPDX-FileCopyrightText: 2020-2024 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/*******************************************************************************
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* NOTICE
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* The ll is not public api, don't use in application code.
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* See readme.md in soc/include/hal/readme.md
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******************************************************************************/
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#pragma once
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdbool.h>
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#include "soc/hwcrypto_reg.h"
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#include "soc/crypto_dma_reg.h"
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#include "soc/dport_reg.h"
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typedef enum {
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CRYPTO_DMA_AES= 0,
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CRYPTO_DMA_SHA,
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} crypto_dma_mode_t;
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/**
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* @brief Enable the bus clock for crypto DMA peripheral module
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*
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* @param enable true to enable the module, false to disable the module
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*/
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static inline void crypto_dma_ll_enable_bus_clock(bool enable)
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{
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if (enable) {
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SET_PERI_REG_MASK(DPORT_PERIP_CLK_EN1_REG, DPORT_CRYPTO_DMA_CLK_EN);
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} else {
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CLEAR_PERI_REG_MASK(DPORT_PERIP_CLK_EN1_REG, DPORT_CRYPTO_DMA_CLK_EN);
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}
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}
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/// use a macro to wrap the function, force the caller to use it in a critical section
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/// the critical section needs to declare the __DECLARE_RCC_ATOMIC_ENV variable in advance
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#define crypto_dma_ll_enable_bus_clock(...) (void)__DECLARE_RCC_ATOMIC_ENV; crypto_dma_ll_enable_bus_clock(__VA_ARGS__)
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/**
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* @brief Reset the crypto DMA peripheral module
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*/
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static inline void crypto_dma_ll_reset_register(void)
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{
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SET_PERI_REG_MASK(DPORT_PERIP_RST_EN1_REG, DPORT_CRYPTO_DMA_RST);
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CLEAR_PERI_REG_MASK(DPORT_PERIP_RST_EN1_REG, DPORT_CRYPTO_DMA_RST);
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}
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/// use a macro to wrap the function, force the caller to use it in a critical section
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/// the critical section needs to declare the __DECLARE_RCC_ATOMIC_ENV variable in advance
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#define crypto_dma_ll_reset_register(...) (void)__DECLARE_RCC_ATOMIC_ENV; crypto_dma_ll_reset_register(__VA_ARGS__)
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/**
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* @brief Resets the DMA
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*
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*/
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static inline void crypto_dma_ll_reset(void)
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{
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SET_PERI_REG_MASK(CRYPTO_DMA_CONF0_REG, CONF0_REG_AHBM_RST | CONF0_REG_OUT_RST | CONF0_REG_AHBM_FIFO_RST);
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CLEAR_PERI_REG_MASK(CRYPTO_DMA_CONF0_REG, CONF0_REG_AHBM_RST | CONF0_REG_OUT_RST | CONF0_REG_AHBM_FIFO_RST);
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}
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/**
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* @brief Selects the crypto DMA mode
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*
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* @param mode Mode to use, AES or SHA
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*/
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static inline void crypto_dma_ll_set_mode(crypto_dma_mode_t mode)
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{
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REG_WRITE(CRYPTO_DMA_AES_SHA_SELECT_REG, mode);
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}
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/**
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* @brief Sets up the outlink for a transfer
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*
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* @param outlink_addr Address of the outlink buffer
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*/
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static inline void crypto_dma_ll_outlink_set(uint32_t outlink_addr)
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{
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CLEAR_PERI_REG_MASK(CRYPTO_DMA_OUT_LINK_REG, OUT_LINK_REG_OUTLINK_ADDR);
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SET_PERI_REG_MASK(CRYPTO_DMA_OUT_LINK_REG, outlink_addr & OUT_LINK_REG_OUTLINK_ADDR);
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}
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/**
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* @brief Sets up the inlink for a transfer
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*
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* @param inlink_addr Address of the inlink buffer
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*/
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static inline void crypto_dma_ll_inlink_set(uint32_t inlink_addr)
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{
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CLEAR_PERI_REG_MASK(CRYPTO_DMA_IN_LINK_REG, IN_LINK_REG_INLINK_ADDR);
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SET_PERI_REG_MASK(CRYPTO_DMA_IN_LINK_REG, inlink_addr & IN_LINK_REG_INLINK_ADDR);
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}
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/**
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* @brief Starts the outlink
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*
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*/
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static inline void crypto_dma_ll_outlink_start(void)
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{
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SET_PERI_REG_MASK(CRYPTO_DMA_OUT_LINK_REG, OUT_LINK_REG_OUTLINK_START);
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}
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/**
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* @brief Starts the inlink
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*
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*/
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static inline void crypto_dma_ll_inlink_start(void)
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{
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SET_PERI_REG_MASK(CRYPTO_DMA_IN_LINK_REG, IN_LINK_REG_INLINK_START);
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}
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static inline bool crypto_dma_ll_inlink_is_eof(void)
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{
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return ((REG_READ(CRYPTO_DMA_INT_RAW_REG) & INT_RAW_IN_SUC_EOF) == INT_RAW_IN_SUC_EOF);
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}
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#ifdef __cplusplus
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}
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#endif
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