diff --git a/components/hal/esp32h21/include/hal/ecc_ll.h b/components/hal/esp32h21/include/hal/ecc_ll.h new file mode 100644 index 0000000000..75ac321369 --- /dev/null +++ b/components/hal/esp32h21/include/hal/ecc_ll.h @@ -0,0 +1,255 @@ +/* + * SPDX-FileCopyrightText: 2025 Espressif Systems (Shanghai) CO LTD + * + * SPDX-License-Identifier: Apache-2.0 + */ +#pragma once + +#include +#include +#include "hal/assert.h" +#include "hal/ecc_types.h" +#include "soc/ecc_mult_reg.h" +#include "soc/pcr_struct.h" +#include "soc/pcr_reg.h" + +#ifdef __cplusplus +extern "C" { +#endif + +typedef enum { + ECC_PARAM_PX = 0x0, + ECC_PARAM_PY, + ECC_PARAM_K, + ECC_PARAM_QX, + ECC_PARAM_QY, + ECC_PARAM_QZ, +} ecc_ll_param_t; + +/** + * @brief Enable the bus clock for ECC peripheral module + * + * @param true to enable the module, false to disable the module + */ +static inline void ecc_ll_enable_bus_clock(bool enable) +{ + PCR.ecc_conf.ecc_clk_en = enable; +} + +/** + * @brief Reset the ECC peripheral module + */ +static inline void ecc_ll_reset_register(void) +{ + PCR.ecc_conf.ecc_rst_en = 1; + PCR.ecc_conf.ecc_rst_en = 0; + + // Clear reset on ECDSA, otherwise ECC is held in reset + PCR.ecdsa_conf.ecdsa_rst_en = 0; +} + +static inline void ecc_ll_power_up(void) +{ + REG_CLR_BIT(PCR_ECC_PD_CTRL_REG, PCR_ECC_MEM_PD); + REG_CLR_BIT(PCR_ECC_PD_CTRL_REG, PCR_ECC_MEM_FORCE_PD); +} + +static inline void ecc_ll_power_down(void) +{ + REG_CLR_BIT(PCR_ECC_PD_CTRL_REG, PCR_ECC_MEM_FORCE_PU); + REG_SET_BIT(PCR_ECC_PD_CTRL_REG, PCR_ECC_MEM_PD); +} + +static inline void ecc_ll_enable_interrupt(void) +{ + REG_SET_FIELD(ECC_MULT_INT_ENA_REG, ECC_MULT_CALC_DONE_INT_ENA, 1); +} + +static inline void ecc_ll_disable_interrupt(void) +{ + REG_SET_FIELD(ECC_MULT_INT_ENA_REG, ECC_MULT_CALC_DONE_INT_ENA, 0); +} + +static inline void ecc_ll_clear_interrupt(void) +{ + REG_SET_FIELD(ECC_MULT_INT_CLR_REG, ECC_MULT_CALC_DONE_INT_CLR, 1); +} + +static inline void ecc_ll_set_mode(ecc_mode_t mode) +{ + switch(mode) { + case ECC_MODE_POINT_MUL: + REG_SET_FIELD(ECC_MULT_CONF_REG, ECC_MULT_WORK_MODE, 0); + break; + case ECC_MODE_VERIFY: + REG_SET_FIELD(ECC_MULT_CONF_REG, ECC_MULT_WORK_MODE, 2); + break; + case ECC_MODE_VERIFY_THEN_POINT_MUL: + REG_SET_FIELD(ECC_MULT_CONF_REG, ECC_MULT_WORK_MODE, 3); + break; + case ECC_MODE_JACOBIAN_POINT_MUL: + REG_SET_FIELD(ECC_MULT_CONF_REG, ECC_MULT_WORK_MODE, 4); + break; + case ECC_MODE_POINT_ADD: + REG_SET_FIELD(ECC_MULT_CONF_REG, ECC_MULT_WORK_MODE, 5); + break; + case ECC_MODE_JACOBIAN_POINT_VERIFY: + REG_SET_FIELD(ECC_MULT_CONF_REG, ECC_MULT_WORK_MODE, 6); + break; + case ECC_MODE_POINT_VERIFY_JACOBIAN_MUL: + REG_SET_FIELD(ECC_MULT_CONF_REG, ECC_MULT_WORK_MODE, 7); + break; + case ECC_MODE_MOD_ADD: + REG_SET_FIELD(ECC_MULT_CONF_REG, ECC_MULT_WORK_MODE, 8); + break; + case ECC_MODE_MOD_SUB: + REG_SET_FIELD(ECC_MULT_CONF_REG, ECC_MULT_WORK_MODE, 9); + break; + case ECC_MODE_MOD_MUL: + REG_SET_FIELD(ECC_MULT_CONF_REG, ECC_MULT_WORK_MODE, 10); + break; + case ECC_MODE_INVERSE_MUL: + REG_SET_FIELD(ECC_MULT_CONF_REG, ECC_MULT_WORK_MODE, 11); + break; + default: + HAL_ASSERT(false && "Unsupported mode"); + break; + } +} + +static inline void ecc_ll_set_curve(ecc_curve_t curve) +{ + switch(curve) { + case ECC_CURVE_SECP256R1: + REG_SET_BIT(ECC_MULT_CONF_REG, ECC_MULT_KEY_LENGTH); + break; + case ECC_CURVE_SECP192R1: + REG_CLR_BIT(ECC_MULT_CONF_REG, ECC_MULT_KEY_LENGTH); + break; + default: + HAL_ASSERT(false && "Unsupported curve"); + return; + } +} + +static inline void ecc_ll_set_mod_base(ecc_mod_base_t base) +{ + switch(base) { + case ECC_MOD_N: + REG_CLR_BIT(ECC_MULT_CONF_REG, ECC_MULT_MOD_BASE); + break; + case ECC_MOD_P: + REG_SET_BIT(ECC_MULT_CONF_REG, ECC_MULT_MOD_BASE); + break; + default: + HAL_ASSERT(false && "Unsupported curve"); + return; + } +} + +static inline void ecc_ll_enable_constant_time_point_mul(bool enable) +{ + if (enable) { + REG_SET_BIT(ECC_MULT_CONF_REG, ECC_MULT_SECURITY_MODE); + } else { + REG_CLR_BIT(ECC_MULT_CONF_REG, ECC_MULT_SECURITY_MODE); + } +} + +static inline void ecc_ll_write_param(ecc_ll_param_t param, const uint8_t *buf, uint16_t len) +{ + uint32_t reg; + uint32_t word; + switch (param) { + case ECC_PARAM_PX: + reg = ECC_MULT_PX_MEM; + break; + case ECC_PARAM_PY: + reg = ECC_MULT_PY_MEM; + break; + case ECC_PARAM_K: + reg = ECC_MULT_K_MEM; + break; + case ECC_PARAM_QX: + reg = ECC_MULT_QX_MEM; + break; + case ECC_PARAM_QY: + reg = ECC_MULT_QY_MEM; + break; + case ECC_PARAM_QZ: + reg = ECC_MULT_QZ_MEM; + break; + default: + HAL_ASSERT(false && "Invalid parameter"); + return; + } + + for (int i = 0; i < len; i += 4) { + memcpy(&word, buf + i, 4); + REG_WRITE(reg + i, word); + } +} + +static inline void ecc_ll_start_calc(void) +{ + REG_SET_BIT(ECC_MULT_CONF_REG, ECC_MULT_START); +} + +static inline int ecc_ll_is_calc_finished(void) +{ + return REG_GET_FIELD(ECC_MULT_INT_RAW_REG, ECC_MULT_CALC_DONE_INT_RAW); +} + +static inline ecc_mode_t ecc_ll_get_mode(void) +{ + return (ecc_mode_t)(REG_GET_FIELD(ECC_MULT_CONF_REG, ECC_MULT_WORK_MODE)); +} + +static inline int ecc_ll_get_verification_result(void) +{ + return REG_GET_FIELD(ECC_MULT_CONF_REG, ECC_MULT_VERIFICATION_RESULT); +} + +static inline ecc_curve_t ecc_ll_get_curve(void) +{ + return (ecc_curve_t)(REG_GET_FIELD(ECC_MULT_CONF_REG, ECC_MULT_KEY_LENGTH)); +} + +static inline ecc_mod_base_t ecc_ll_get_mod_base(void) +{ + return (ecc_mod_base_t)(REG_GET_FIELD(ECC_MULT_CONF_REG, ECC_MULT_MOD_BASE)); +} + +static inline void ecc_ll_read_param(ecc_ll_param_t param, uint8_t *buf, uint16_t len) +{ + uint32_t reg; + switch (param) { + case ECC_PARAM_PX: + reg = ECC_MULT_PX_MEM; + break; + case ECC_PARAM_PY: + reg = ECC_MULT_PY_MEM; + break; + case ECC_PARAM_K: + reg = ECC_MULT_K_MEM; + break; + case ECC_PARAM_QX: + reg = ECC_MULT_QX_MEM; + break; + case ECC_PARAM_QY: + reg = ECC_MULT_QY_MEM; + break; + case ECC_PARAM_QZ: + reg = ECC_MULT_QZ_MEM; + break; + default: + HAL_ASSERT(false && "Invalid parameter"); + return; + } + + memcpy(buf, (void *)reg, len); +} + +#ifdef __cplusplus +} +#endif diff --git a/components/soc/esp32h21/include/soc/Kconfig.soc_caps.in b/components/soc/esp32h21/include/soc/Kconfig.soc_caps.in index 38497a77e4..3ed6d1cb59 100644 --- a/components/soc/esp32h21/include/soc/Kconfig.soc_caps.in +++ b/components/soc/esp32h21/include/soc/Kconfig.soc_caps.in @@ -23,6 +23,14 @@ config SOC_SYSTIMER_SUPPORTED bool default y +config SOC_ECC_SUPPORTED + bool + default y + +config SOC_ECC_EXTENDED_MODES_SUPPORTED + bool + default y + config SOC_FLASH_ENC_SUPPORTED bool default y @@ -299,6 +307,10 @@ config SOC_SHA_SUPPORT_SHA256 bool default y +config SOC_ECC_CONSTANT_TIME_POINT_MUL + bool + default y + config SOC_SPI_PERIPH_NUM int default 2 diff --git a/components/soc/esp32h21/include/soc/soc_caps.h b/components/soc/esp32h21/include/soc/soc_caps.h index ab40d193d2..40af70d1d8 100644 --- a/components/soc/esp32h21/include/soc/soc_caps.h +++ b/components/soc/esp32h21/include/soc/soc_caps.h @@ -47,8 +47,8 @@ // #define SOC_SHA_SUPPORTED 1 //TODO: [ESP32H21] IDF-11501 // #define SOC_HMAC_SUPPORTED 1 //TODO: [ESP32H21] IDF-11495 // #define SOC_DIG_SIGN_SUPPORTED 1 //TODO: [ESP32H21] IDF-11497 -// #define SOC_ECC_SUPPORTED 1 //TODO: [ESP32H21] IDF-11502 -// #define SOC_ECC_EXTENDED_MODES_SUPPORTED 1 //TODO: [ESP32H21] IDF-11502 +#define SOC_ECC_SUPPORTED 1 +#define SOC_ECC_EXTENDED_MODES_SUPPORTED 1 // #define SOC_ECDSA_SUPPORTED 1 //TODO: [ESP32H21] IDF-11496 #define SOC_FLASH_ENC_SUPPORTED 1 //TODO: [ESP32H21] IDF-11499 // #define SOC_SECURE_BOOT_SUPPORTED 1 //TODO: [ESP32H21] IDF-11500 @@ -373,6 +373,9 @@ #define SOC_SHA_SUPPORT_SHA224 (1) #define SOC_SHA_SUPPORT_SHA256 (1) +/*--------------------------- ECC CAPS ---------------------------------------*/ +#define SOC_ECC_CONSTANT_TIME_POINT_MUL 1 + /*-------------------------- SPI CAPS ----------------------------------------*/ #define SOC_SPI_PERIPH_NUM 2 #define SOC_SPI_PERIPH_CS_NUM(i) 6