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fix(hal): Fix key_mgr_ll_reset_register API

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the key_mgr_ll_reset_register API now
    waits till key manager state is IDLE
This commit is contained in:
Aditya Patwardhan 2024-10-01 23:03:07 +05:30 committed by Mahavir Jain
parent 82db0feab2
commit b0664a6f2e
1 changed files with 19 additions and 13 deletions
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32
components/hal/esp32p4/include/hal/key_mgr_ll.h
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@ -54,19 +54,35 @@ static inline void _key_mgr_ll_enable_peripheral_clock(bool enable)
#define key_mgr_ll_enable_peripheral_clock(...) (void)__DECLARE_RCC_ATOMIC_ENV; _key_mgr_ll_enable_peripheral_clock(__VA_ARGS__)
/**
* @brief Reset the Key Manager peripheral */
static inline void key_mgr_ll_reset_register(void)
* @brief Read state of Key Manager
*
* @return esp_key_mgr_state_t
*/
static inline esp_key_mgr_state_t key_mgr_ll_get_state(void)
{
return (esp_key_mgr_state_t) REG_GET_FIELD(KEYMNG_STATE_REG, KEYMNG_STATE);
}
/**
* @brief Reset the Key Manager peripheral
* Note: Please use key_mgr_ll_reset_register which requires the critical section
* and do not use _key_mgr_ll_reset_register
*/
static inline void _key_mgr_ll_reset_register(void)
{
HP_SYS_CLKRST.hp_rst_en2.reg_rst_en_km = 1;
HP_SYS_CLKRST.hp_rst_en2.reg_rst_en_km = 0;
// Clear reset on parent crypto, otherwise Key Manager is held in reset
HP_SYS_CLKRST.hp_rst_en2.reg_rst_en_crypto = 0;
while (key_mgr_ll_get_state() != ESP_KEY_MGR_STATE_IDLE) {
};
}
/// use a macro to wrap the function, force the caller to use it in a critical section
/// the critical section needs to declare the __DECLARE_RCC_ATOMIC_ENV variable in advance
#define key_mgr_ll_reset_register(...) (void)__DECLARE_RCC_ATOMIC_ENV; key_mgr_ll_reset_register(__VA_ARGS__)
#define key_mgr_ll_reset_register(...) (void)__DECLARE_RCC_ATOMIC_ENV; _key_mgr_ll_reset_register(__VA_ARGS__)
/* @brief Start the key manager at IDLE state */
static inline void key_mgr_ll_start(void)
@ -323,16 +339,6 @@ static inline esp_key_mgr_xts_aes_key_len_t key_mgr_ll_get_xts_aes_key_len(void)
return (esp_key_mgr_xts_aes_key_len_t) REG_GET_FIELD(KEYMNG_STATIC_REG, KEYMNG_XTS_AES_KEY_LEN);
}
/**
* @brief Read state of Key Manager
*
* @return esp_key_mgr_state_t
*/
static inline esp_key_mgr_state_t key_mgr_ll_get_state(void)
{
return (esp_key_mgr_state_t) REG_GET_FIELD(KEYMNG_STATE_REG, KEYMNG_STATE);
}
/**
* @brief Read the Key Manager date information
*/