esp-idf/components/soc/esp32c61/include/soc/ecc_mult_struct.h

/**
 * SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
 *
 *  SPDX-License-Identifier: Apache-2.0
 */
#pragma once

#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif

/** Group: Memory data */

/** Group: Interrupt registers */
/** Type of int_raw register
 *  ECC raw interrupt status register
 */
typedef union {
    struct {
        /** calc_done_int_raw : RO/WTC/SS; bitpos: [0]; default: 0;
         *  The raw interrupt status of the ECC_CALC_DONE_INT interrupt.
         */
        uint32_t calc_done_int_raw:1;
        uint32_t reserved_1:31;
    };
    uint32_t val;
} ecc_mult_int_raw_reg_t;

/** Type of int_st register
 *  ECC masked interrupt status register
 */
typedef union {
    struct {
        /** calc_done_int_st : RO; bitpos: [0]; default: 0;
         *  The masked interrupt status of the ECC_CALC_DONE_INT interrupt.
         */
        uint32_t calc_done_int_st:1;
        uint32_t reserved_1:31;
    };
    uint32_t val;
} ecc_mult_int_st_reg_t;

/** Type of int_ena register
 *  ECC interrupt enable register
 */
typedef union {
    struct {
        /** calc_done_int_ena : R/W; bitpos: [0]; default: 0;
         *  Write 1 to enable the ECC_CALC_DONE_INT interrupt.
         */
        uint32_t calc_done_int_ena:1;
        uint32_t reserved_1:31;
    };
    uint32_t val;
} ecc_mult_int_ena_reg_t;

/** Type of int_clr register
 *  ECC interrupt clear register
 */
typedef union {
    struct {
        /** calc_done_int_clr : WT; bitpos: [0]; default: 0;
         *  Write 1 to clear the ECC_CALC_DONE_INT interrupt.
         */
        uint32_t calc_done_int_clr:1;
        uint32_t reserved_1:31;
    };
    uint32_t val;
} ecc_mult_int_clr_reg_t;


/** Group: RX Control and configuration registers */
/** Type of conf register
 *  ECC configuration register
 */
typedef union {
    struct {
        /** start : R/W/SC; bitpos: [0]; default: 0;
         *  Configures whether to start calculation of ECC Accelerator. This bit will be
         *  self-cleared after the calculation is done. \\
         *  0: No effect\\
         *  1: Start calculation of ECC Accelerator\\
         */
        uint32_t start:1;
        /** reset : WT; bitpos: [1]; default: 0;
         *  Configures whether to reset ECC Accelerator. \\
         *  0: No effect\\
         *  1: Reset\\
         */
        uint32_t reset:1;
        /** key_length : R/W; bitpos: [2]; default: 0;
         *  Configures the key length mode bit of ECC Accelerator. \\
         *  0: P-192\\
         *  1: P-256\\
         */
        uint32_t key_length:1;
        /** mod_base : R/W; bitpos: [3]; default: 0;
         *  Configures the mod base of mod operation, only valid in work_mode 8-11. \\
         *  0: n(order of curve)\\
         *  1: p(mod base of curve)\\
         */
        uint32_t mod_base:1;
        /** work_mode : R/W; bitpos: [7:4]; default: 0;
         *  Configures the work mode of ECC Accelerator.\\
         *  0: Point Multi mode\\
         *  1: Reserved\\
         *  2: Point Verif mode\\
         *  3: Point Verif + Multi mode\\
         *  4: Jacobian Point Multi mode\\
         *  5: Reserved\\
         *  6: Jacobian Point Verif mode\\
         *  7: Point Verif + Jacobian Point Multi mode\\
         *  8: Mod Add mode\\
         *  9. Mod Sub mode\\
         *  10: Mod Multi mode\\
         *  11: Mod Div mode\\
         */
        uint32_t work_mode:4;
        /** security_mode : R/W; bitpos: [8]; default: 0;
         *  Configures the security mode of ECC Accelerator.\\
         *  0: no secure function enabled.\\
         *  1: enable constant-time calculation in all point multiplication modes.\\
         */
        uint32_t security_mode:1;
        uint32_t reserved_9:20;
        /** verification_result : RO/SS; bitpos: [29]; default: 0;
         *  Represents the verification result of ECC Accelerator, valid only when calculation
         *  is done.
         */
        uint32_t verification_result:1;
        /** clk_en : R/W; bitpos: [30]; default: 0;
         *  Configures whether to force on register clock gate. \\
         *  0: No effect\\
         *  1: Force on\\
         */
        uint32_t clk_en:1;
        /** mem_clock_gate_force_on : R/W; bitpos: [31]; default: 0;
         *  Configures whether to force on ECC memory clock gate. \\
         *  0: No effect\\
         *  1: Force on\\
         */
        uint32_t mem_clock_gate_force_on:1;
    };
    uint32_t val;
} ecc_mult_conf_reg_t;


/** Group: Version register */
/** Type of date register
 *  Version control register
 */
typedef union {
    struct {
        /** date : R/W; bitpos: [27:0]; default: 37752928;
         *  ECC mult version control register
         */
        uint32_t date:28;
        uint32_t reserved_28:4;
    };
    uint32_t val;
} ecc_mult_date_reg_t;


typedef struct {
    uint32_t reserved_000[3];
    volatile ecc_mult_int_raw_reg_t int_raw;
    volatile ecc_mult_int_st_reg_t int_st;
    volatile ecc_mult_int_ena_reg_t int_ena;
    volatile ecc_mult_int_clr_reg_t int_clr;
    volatile ecc_mult_conf_reg_t conf;
    uint32_t reserved_020[55];
    volatile ecc_mult_date_reg_t date;
    volatile uint32_t k[8];
    volatile uint32_t px[8];
    volatile uint32_t py[8];
    volatile uint32_t qx[8];
    volatile uint32_t qy[8];
    volatile uint32_t qz[8];
} ecc_mult_dev_t;

extern ecc_mult_dev_t ECC;

#ifndef __cplusplus
_Static_assert(sizeof(ecc_mult_dev_t) == 0x1c0, "Invalid size of ecc_mult_dev_t structure");
#endif

#ifdef __cplusplus
}
#endif