Commit c05cb5bd authored by Thomas Weißschuh's avatar Thomas Weißschuh Committed by Tzung-Bi Shih
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platform/chrome: Update binary interface for EC-based charge control 



The charge-control command v2/v3 is more featureful than v1, it
additionally supports charge thresholds.

The definitions were imported from ChromeOS EC commit
32870d602317 ("squirtle: modify motionsense rotation matrix")

Signed-off-by: default avatarThomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20240630-cros_ec-charge-control-v5-2-8f649d018c52@weissschuh.net


Signed-off-by: default avatarTzung-Bi Shih <tzungbi@kernel.org>
parent 2681bbaa

include/linux/platform_data/cros_ec_commands.h

+47 −2
Original line number Diff line number Diff line
@@ -3843,16 +3843,61 @@ struct ec_params_i2c_write { 
 * discharge the battery.

 */

#define EC_CMD_CHARGE_CONTROL 0x0096

#define EC_VER_CHARGE_CONTROL 1

#define EC_VER_CHARGE_CONTROL 3



enum ec_charge_control_mode {

	CHARGE_CONTROL_NORMAL = 0,

	CHARGE_CONTROL_IDLE,

	CHARGE_CONTROL_DISCHARGE,

	/* Add no more entry below. */

	CHARGE_CONTROL_COUNT,

};



#define EC_CHARGE_MODE_TEXT                               \

	{                                                 \

		[CHARGE_CONTROL_NORMAL] = "NORMAL",       \

		[CHARGE_CONTROL_IDLE] = "IDLE",           \

		[CHARGE_CONTROL_DISCHARGE] = "DISCHARGE", \

	}



enum ec_charge_control_cmd {

	EC_CHARGE_CONTROL_CMD_SET = 0,

	EC_CHARGE_CONTROL_CMD_GET,

};



enum ec_charge_control_flag {

	EC_CHARGE_CONTROL_FLAG_NO_IDLE = BIT(0),

};



struct ec_params_charge_control {

	uint32_t mode; /* enum charge_control_mode */



	/* Below are the fields added in V2. */

	uint8_t cmd; /* enum ec_charge_control_cmd. */

	uint8_t flags; /* enum ec_charge_control_flag (v3+) */

	/*

	 * Lower and upper thresholds for battery sustainer. This struct isn't

	 * named to avoid tainting foreign projects' name spaces.

	 *

	 * If charge mode is explicitly set (e.g. DISCHARGE), battery sustainer

	 * will be disabled. To disable battery sustainer, set mode=NORMAL,

	 * lower=-1, upper=-1.

	 */

	struct {

		int8_t lower; /* Display SoC in percentage. */

		int8_t upper; /* Display SoC in percentage. */

	} sustain_soc;

} __ec_align4;



/* Added in v2 */

struct ec_response_charge_control {

	uint32_t mode; /* enum charge_control_mode */

	struct { /* Battery sustainer thresholds */

		int8_t lower;

		int8_t upper;

	} sustain_soc;

	uint8_t flags; /* enum ec_charge_control_flag (v3+) */

	uint8_t reserved;

} __ec_align4;



/*****************************************************************************/