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Merge branch 'feature/efuse_purpose_api' into 'master'
efuse: Add an API to return the efuse descriptor for a key block's purpose field See merge request espressif/esp-idf!8269
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commit
604360b98c
@ -56,6 +56,14 @@ typedef enum {
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EFUSE_BLK_MAX
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} esp_efuse_block_t;
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struct esp_efuse_desc_s;
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/**
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* @brief Given a key block in the range EFUSE_BLK_KEY0..EFUSE_BLK_KEY5, return
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* efuse field for setting the key purpose
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*/
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const struct esp_efuse_desc_s **esp_efuse_get_purpose_field(esp_efuse_block_t block);
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/**
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* @brief Type of coding scheme
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*/
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@ -35,13 +35,18 @@ extern "C" {
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#define ESP_ERR_CODING (ESP_ERR_EFUSE + 0x04) /*!< Error while a encoding operation. */
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/**
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* @brief Structure eFuse field
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* @brief Structure eFuse field
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*/
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typedef struct {
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struct esp_efuse_desc_s {
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esp_efuse_block_t efuse_block: 8; /**< Block of eFuse */
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uint8_t bit_start; /**< Start bit [0..255] */
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uint16_t bit_count; /**< Length of bit field [1..-]*/
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} esp_efuse_desc_t;
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};
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/**
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* @brief Type definition for an eFuse field
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*/
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typedef struct esp_efuse_desc_s esp_efuse_desc_t;
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/**
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* @brief Reads bits from EFUSE field and writes it into an array.
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@ -81,3 +81,25 @@ esp_efuse_coding_scheme_t esp_efuse_get_coding_scheme(esp_efuse_block_t blk)
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ESP_EARLY_LOGD(TAG, "coding scheme %d", scheme);
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return scheme;
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}
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const esp_efuse_desc_t **esp_efuse_get_purpose_field(esp_efuse_block_t block)
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{
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switch(block) {
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case EFUSE_BLK_KEY0:
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return ESP_EFUSE_KEY_PURPOSE_0;
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case EFUSE_BLK_KEY1:
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return ESP_EFUSE_KEY_PURPOSE_1;
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case EFUSE_BLK_KEY2:
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return ESP_EFUSE_KEY_PURPOSE_2;
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case EFUSE_BLK_KEY3:
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return ESP_EFUSE_KEY_PURPOSE_3;
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case EFUSE_BLK_KEY4:
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return ESP_EFUSE_KEY_PURPOSE_4;
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case EFUSE_BLK_KEY5:
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return ESP_EFUSE_KEY_PURPOSE_5;
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default:
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return NULL;
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}
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}
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