mfd: cros_ec: Add SKU ID and Secure storage API (cc3a032f) · Commits · 戴 / test

include/linux/mfd/cros_ec_commands.h

+107 −0

Original line number	Diff line number	Diff line
		@@ -1292,6 +1292,17 @@ struct ec_response_get_features {
		uint32_t flags[2];
		} __ec_align4;

		/*****************************************************************************/
		/* Get the board's SKU ID from EC */
		#define EC_CMD_GET_SKU_ID 0x000E

		/* Set SKU ID from AP */
		#define EC_CMD_SET_SKU_ID 0x000F

		struct ec_sku_id_info {
		uint32_t sku_id;
		} __ec_align4;

		/*****************************************************************************/
		/* Flash commands */

		@@ -2902,6 +2913,49 @@ struct ec_response_port80_last_boot {
		uint16_t code;
		} __ec_align2;

		/*****************************************************************************/
		/* Temporary secure storage for host verified boot use */

		/* Number of bytes in a vstore slot */
		#define EC_VSTORE_SLOT_SIZE 64

		/* Maximum number of vstore slots */
		#define EC_VSTORE_SLOT_MAX 32

		/* Get persistent storage info */
		#define EC_CMD_VSTORE_INFO 0x0049
		struct ec_response_vstore_info {
		/* Indicates which slots are locked */
		uint32_t slot_locked;
		/* Total number of slots available */
		uint8_t slot_count;
		} __ec_align_size1;

		/*
		* Read temporary secure storage
		*
		* Response is EC_VSTORE_SLOT_SIZE bytes of data.
		*/
		#define EC_CMD_VSTORE_READ 0x004A

		struct ec_params_vstore_read {
		uint8_t slot; /* Slot to read from */
		} __ec_align1;

		struct ec_response_vstore_read {
		uint8_t data[EC_VSTORE_SLOT_SIZE];
		} __ec_align1;

		/*
		* Write temporary secure storage and lock it.
		*/
		#define EC_CMD_VSTORE_WRITE 0x004B

		struct ec_params_vstore_write {
		uint8_t slot; /* Slot to write to */
		uint8_t data[EC_VSTORE_SLOT_SIZE];
		} __ec_align1;

		/*****************************************************************************/
		/* Thermal engine commands. Note that there are two implementations. We'll
		* reuse the command number, but the data and behavior is incompatible.
		@@ -5069,6 +5123,59 @@ struct ec_params_efs_verify {
		uint8_t region; /* enum ec_flash_region */
		} __ec_align1;

		/*
		* Retrieve info from Cros Board Info store. Response is based on the data
		* type. Integers return a uint32. Strings return a string, using the response
		* size to determine how big it is.
		*/
		#define EC_CMD_GET_CROS_BOARD_INFO 0x011F
		/*
		* Write info into Cros Board Info on EEPROM. Write fails if the board has
		* hardware write-protect enabled.
		*/
		#define EC_CMD_SET_CROS_BOARD_INFO 0x0120

		enum cbi_data_tag {
		CBI_TAG_BOARD_VERSION = 0, /* uint32_t or smaller */
		CBI_TAG_OEM_ID = 1, /* uint32_t or smaller */
		CBI_TAG_SKU_ID = 2, /* uint32_t or smaller */
		CBI_TAG_DRAM_PART_NUM = 3, /* variable length ascii, nul terminated. */
		CBI_TAG_OEM_NAME = 4, /* variable length ascii, nul terminated. */
		CBI_TAG_MODEL_ID = 5, /* uint32_t or smaller */
		CBI_TAG_COUNT,
		};

		/*
		* Flags to control read operation
		*
		* RELOAD: Invalidate cache and read data from EEPROM. Useful to verify
		* write was successful without reboot.
		*/
		#define CBI_GET_RELOAD BIT(0)

		struct ec_params_get_cbi {
		uint32_t tag; /* enum cbi_data_tag */
		uint32_t flag; /* CBI_GET_* */
		} __ec_align4;

		/*
		* Flags to control write behavior.
		*
		* NO_SYNC: Makes EC update data in RAM but skip writing to EEPROM. It's
		* useful when writing multiple fields in a row.
		* INIT: Need to be set when creating a new CBI from scratch. All fields
		* will be initialized to zero first.
		*/
		#define CBI_SET_NO_SYNC BIT(0)
		#define CBI_SET_INIT BIT(1)

		struct ec_params_set_cbi {
		uint32_t tag; /* enum cbi_data_tag */
		uint32_t flag; /* CBI_SET_* */
		uint32_t size; /* Data size */
		uint8_t data[]; /* For string and raw data */
		} __ec_align1;

		/*****************************************************************************/
		/* Fingerprint MCU commands: range 0x0400-0x040x */

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