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add esp_chip_info API

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This commit is contained in:
Ivan Grokhotkov
2017-03-02 20:51:37 +08:00
parent 33b8b7855e
commit 2260c714e7
3 changed files with 95 additions and 8 deletions
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32
components/esp32/include/esp_system.h
View File

@@ -209,6 +209,38 @@ const char* system_get_sdk_version(void) __attribute__ ((deprecated));
*/
const char* esp_get_idf_version(void);
/**
* @brief Chip models
*/
typedef enum {
CHIP_ESP32 = 1, //!< ESP32
} esp_chip_model_t;
/**
* Chip feature flags, used in esp_chip_info_t
*/
#define CHIP_FEATURE_EMB_FLASH BIT(0)
#define CHIP_FEATURE_WIFI_BGN BIT(1)
#define CHIP_FEATURE_BLE BIT(4)
#define CHIP_FEATURE_BT BIT(5)
/**
* @brief The structure represents information about the chip
*/
typedef struct {
esp_chip_model_t model; //!< chip model, one of esp_chip_model_t
uint32_t features; //!< bit mask of CHIP_FEATURE_x feature flags
uint8_t cores; //!< number of CPU cores
uint8_t revision; //!< chip revision number
} esp_chip_info_t;
/**
* @brief Fill an esp_chip_info_t structure with information about the chip
* @param[out] out_info structure to be filled
*/
void esp_chip_info(esp_chip_info_t* out_info);
#ifdef __cplusplus
}
#endif

28
components/esp32/system_api.c
View File

@@ -326,3 +326,31 @@ const char* esp_get_idf_version(void)
return IDF_VER;
}
static void get_chip_info_esp32(esp_chip_info_t* out_info)
{
uint32_t reg = REG_READ(EFUSE_BLK0_RDATA3_REG);
memset(out_info, 0, sizeof(*out_info));
if ((reg & EFUSE_RD_CHIP_VER_REV1_M) != 0) {
out_info->revision = 1;
}
if ((reg & EFUSE_RD_CHIP_VER_DIS_APP_CPU_M) == 0) {
out_info->cores = 2;
} else {
out_info->cores = 1;
}
out_info->features = CHIP_FEATURE_WIFI_BGN;
if ((reg & EFUSE_RD_CHIP_VER_DIS_BT_M) == 0) {
out_info->features |= CHIP_FEATURE_BT | CHIP_FEATURE_BLE;
}
if (((reg & EFUSE_RD_CHIP_VER_PKG_M) >> EFUSE_RD_CHIP_VER_PKG_S) ==
EFUSE_RD_CHIP_VER_PKG_ESP32D2WDQ5) {
out_info->features |= CHIP_FEATURE_EMB_FLASH;
}
}
void esp_chip_info(esp_chip_info_t* out_info)
{
// Only ESP32 is supported now, in the future call one of the
// chip-specific functions based on sdkconfig choice
return get_chip_info_esp32(out_info);
}