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OpenCellular/include/ec_commands.h
Nicolas Boichat e5c6f97d1a charge_state_v2: Basic dual-battery charging algorithm 
First version of the algorithm, some TODOs are left in the code
but this, generally, works reasonably well.

When charging, we allocate input current in this general order:
 - Base system (fixed, low, number)
 - Lid system (based on PSYS)
 - Lid battery (estimating how much current the battery actually
   requires)
 - Base battery (similar estimation)
 - Provide everything else to lid

When discharging, we generally:
 - First discharge the base battery
 - Then discharge the lid battery

BRANCH=none
BUG=b:71881017
TEST=Flash lux and wand, EC-EC communication works, adapter power
     is split in a sensible way, and discharging works fine.

Change-Id: I8a4f87963962fc5466b2fedf1347eb4dadd35740
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/659460
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2018-01-26 13:25:38 -08:00

4908 lines
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/* Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/* Host communication command constants for Chrome EC */
#ifndef __CROS_EC_EC_COMMANDS_H
#define __CROS_EC_EC_COMMANDS_H
#if !defined(__ACPI__) && !defined(__KERNEL__)
#include <stdint.h>
#endif
/*
* Include common.h for CONFIG_HOSTCMD_ALIGNED, if it's defined. This
* generates more efficient code for accessing request/response structures on
* ARM Cortex-M if the structures are guaranteed 32-bit aligned.
*/
#ifdef CHROMIUM_EC
#include "common.h"
#endif
/*
* Current version of this protocol
*
* TODO(crosbug.com/p/11223): This is effectively useless; protocol is
* determined in other ways. Remove this once the kernel code no longer
* depends on it.
*/
#define EC_PROTO_VERSION 0x00000002
/* Command version mask */
#define EC_VER_MASK(version) (1UL << (version))
/* I/O addresses for ACPI commands */
#define EC_LPC_ADDR_ACPI_DATA 0x62
#define EC_LPC_ADDR_ACPI_CMD 0x66
/* I/O addresses for host command */
#define EC_LPC_ADDR_HOST_DATA 0x200
#define EC_LPC_ADDR_HOST_CMD 0x204
/* I/O addresses for host command args and params */
/* Protocol version 2 */
#define EC_LPC_ADDR_HOST_ARGS 0x800 /* And 0x801, 0x802, 0x803 */
#define EC_LPC_ADDR_HOST_PARAM 0x804 /* For version 2 params; size is
* EC_PROTO2_MAX_PARAM_SIZE */
/* Protocol version 3 */
#define EC_LPC_ADDR_HOST_PACKET 0x800 /* Offset of version 3 packet */
#define EC_LPC_HOST_PACKET_SIZE 0x100 /* Max size of version 3 packet */
/* The actual block is 0x800-0x8ff, but some BIOSes think it's 0x880-0x8ff
* and they tell the kernel that so we have to think of it as two parts. */
#define EC_HOST_CMD_REGION0 0x800
#define EC_HOST_CMD_REGION1 0x880
#define EC_HOST_CMD_REGION_SIZE 0x80
/* EC command register bit functions */
#define EC_LPC_CMDR_DATA (1 << 0) /* Data ready for host to read */
#define EC_LPC_CMDR_PENDING (1 << 1) /* Write pending to EC */
#define EC_LPC_CMDR_BUSY (1 << 2) /* EC is busy processing a command */
#define EC_LPC_CMDR_CMD (1 << 3) /* Last host write was a command */
#define EC_LPC_CMDR_ACPI_BRST (1 << 4) /* Burst mode (not used) */
#define EC_LPC_CMDR_SCI (1 << 5) /* SCI event is pending */
#define EC_LPC_CMDR_SMI (1 << 6) /* SMI event is pending */
#define EC_LPC_ADDR_MEMMAP 0x900
#define EC_MEMMAP_SIZE 255 /* ACPI IO buffer max is 255 bytes */
#define EC_MEMMAP_TEXT_MAX 8 /* Size of a string in the memory map */
/* The offset address of each type of data in mapped memory. */
#define EC_MEMMAP_TEMP_SENSOR 0x00 /* Temp sensors 0x00 - 0x0f */
#define EC_MEMMAP_FAN 0x10 /* Fan speeds 0x10 - 0x17 */
#define EC_MEMMAP_TEMP_SENSOR_B 0x18 /* More temp sensors 0x18 - 0x1f */
#define EC_MEMMAP_ID 0x20 /* 0x20 == 'E', 0x21 == 'C' */
#define EC_MEMMAP_ID_VERSION 0x22 /* Version of data in 0x20 - 0x2f */
#define EC_MEMMAP_THERMAL_VERSION 0x23 /* Version of data in 0x00 - 0x1f */
#define EC_MEMMAP_BATTERY_VERSION 0x24 /* Version of data in 0x40 - 0x7f */
#define EC_MEMMAP_SWITCHES_VERSION 0x25 /* Version of data in 0x30 - 0x33 */
#define EC_MEMMAP_EVENTS_VERSION 0x26 /* Version of data in 0x34 - 0x3f */
#define EC_MEMMAP_HOST_CMD_FLAGS 0x27 /* Host cmd interface flags (8 bits) */
/* Unused 0x28 - 0x2f */
#define EC_MEMMAP_SWITCHES 0x30 /* 8 bits */
/* Unused 0x31 - 0x33 */
#define EC_MEMMAP_HOST_EVENTS 0x34 /* 64 bits */
/* Battery values are all 32 bits */
#define EC_MEMMAP_BATT_VOLT 0x40 /* Battery Present Voltage */
#define EC_MEMMAP_BATT_RATE 0x44 /* Battery Present Rate */
#define EC_MEMMAP_BATT_CAP 0x48 /* Battery Remaining Capacity */
#define EC_MEMMAP_BATT_FLAG 0x4c /* Battery State, defined below */
#define EC_MEMMAP_BATT_DCAP 0x50 /* Battery Design Capacity */
#define EC_MEMMAP_BATT_DVLT 0x54 /* Battery Design Voltage */
#define EC_MEMMAP_BATT_LFCC 0x58 /* Battery Last Full Charge Capacity */
#define EC_MEMMAP_BATT_CCNT 0x5c /* Battery Cycle Count */
/* Strings are all 8 bytes (EC_MEMMAP_TEXT_MAX) */
#define EC_MEMMAP_BATT_MFGR 0x60 /* Battery Manufacturer String */
#define EC_MEMMAP_BATT_MODEL 0x68 /* Battery Model Number String */
#define EC_MEMMAP_BATT_SERIAL 0x70 /* Battery Serial Number String */
#define EC_MEMMAP_BATT_TYPE 0x78 /* Battery Type String */
#define EC_MEMMAP_ALS 0x80 /* ALS readings in lux (2 X 16 bits) */
/* Unused 0x84 - 0x8f */
#define EC_MEMMAP_ACC_STATUS 0x90 /* Accelerometer status (8 bits )*/
/* Unused 0x91 */
#define EC_MEMMAP_ACC_DATA 0x92 /* Accelerometers data 0x92 - 0x9f */
/* 0x92: Lid Angle if available, LID_ANGLE_UNRELIABLE otherwise */
/* 0x94 - 0x99: 1st Accelerometer */
/* 0x9a - 0x9f: 2nd Accelerometer */
#define EC_MEMMAP_GYRO_DATA 0xa0 /* Gyroscope data 0xa0 - 0xa5 */
/* Unused 0xa6 - 0xdf */
/*
* ACPI is unable to access memory mapped data at or above this offset due to
* limitations of the ACPI protocol. Do not place data in the range 0xe0 - 0xfe
* which might be needed by ACPI.
*/
#define EC_MEMMAP_NO_ACPI 0xe0
/* Define the format of the accelerometer mapped memory status byte. */
#define EC_MEMMAP_ACC_STATUS_SAMPLE_ID_MASK 0x0f
#define EC_MEMMAP_ACC_STATUS_BUSY_BIT (1 << 4)
#define EC_MEMMAP_ACC_STATUS_PRESENCE_BIT (1 << 7)
/* Number of temp sensors at EC_MEMMAP_TEMP_SENSOR */
#define EC_TEMP_SENSOR_ENTRIES 16
/*
* Number of temp sensors at EC_MEMMAP_TEMP_SENSOR_B.
*
* Valid only if EC_MEMMAP_THERMAL_VERSION returns >= 2.
*/
#define EC_TEMP_SENSOR_B_ENTRIES 8
/* Special values for mapped temperature sensors */
#define EC_TEMP_SENSOR_NOT_PRESENT 0xff
#define EC_TEMP_SENSOR_ERROR 0xfe
#define EC_TEMP_SENSOR_NOT_POWERED 0xfd
#define EC_TEMP_SENSOR_NOT_CALIBRATED 0xfc
/*
* The offset of temperature value stored in mapped memory. This allows
* reporting a temperature range of 200K to 454K = -73C to 181C.
*/
#define EC_TEMP_SENSOR_OFFSET 200
/*
* Number of ALS readings at EC_MEMMAP_ALS
*/
#define EC_ALS_ENTRIES 2
/*
* The default value a temperature sensor will return when it is present but
* has not been read this boot. This is a reasonable number to avoid
* triggering alarms on the host.
*/
#define EC_TEMP_SENSOR_DEFAULT (296 - EC_TEMP_SENSOR_OFFSET)
#define EC_FAN_SPEED_ENTRIES 4 /* Number of fans at EC_MEMMAP_FAN */
#define EC_FAN_SPEED_NOT_PRESENT 0xffff /* Entry not present */
#define EC_FAN_SPEED_STALLED 0xfffe /* Fan stalled */
/* Battery bit flags at EC_MEMMAP_BATT_FLAG. */
#define EC_BATT_FLAG_AC_PRESENT 0x01
#define EC_BATT_FLAG_BATT_PRESENT 0x02
#define EC_BATT_FLAG_DISCHARGING 0x04
#define EC_BATT_FLAG_CHARGING 0x08
#define EC_BATT_FLAG_LEVEL_CRITICAL 0x10
/* Set if some of the static/dynamic data is invalid (or outdated). */
#define EC_BATT_FLAG_INVALID_DATA 0x20
/* Switch flags at EC_MEMMAP_SWITCHES */
#define EC_SWITCH_LID_OPEN 0x01
#define EC_SWITCH_POWER_BUTTON_PRESSED 0x02
#define EC_SWITCH_WRITE_PROTECT_DISABLED 0x04
/* Was recovery requested via keyboard; now unused. */
#define EC_SWITCH_IGNORE1 0x08
/* Recovery requested via dedicated signal (from servo board) */
#define EC_SWITCH_DEDICATED_RECOVERY 0x10
/* Was fake developer mode switch; now unused. Remove in next refactor. */
#define EC_SWITCH_IGNORE0 0x20
/* Host command interface flags */
/* Host command interface supports LPC args (LPC interface only) */
#define EC_HOST_CMD_FLAG_LPC_ARGS_SUPPORTED 0x01
/* Host command interface supports version 3 protocol */
#define EC_HOST_CMD_FLAG_VERSION_3 0x02
/* Wireless switch flags */
#define EC_WIRELESS_SWITCH_ALL ~0x00 /* All flags */
#define EC_WIRELESS_SWITCH_WLAN 0x01 /* WLAN radio */
#define EC_WIRELESS_SWITCH_BLUETOOTH 0x02 /* Bluetooth radio */
#define EC_WIRELESS_SWITCH_WWAN 0x04 /* WWAN power */
#define EC_WIRELESS_SWITCH_WLAN_POWER 0x08 /* WLAN power */
/*****************************************************************************/
/*
* ACPI commands
*
* These are valid ONLY on the ACPI command/data port.
*/
/*
* ACPI Read Embedded Controller
*
* This reads from ACPI memory space on the EC (EC_ACPI_MEM_*).
*
* Use the following sequence:
*
* - Write EC_CMD_ACPI_READ to EC_LPC_ADDR_ACPI_CMD
* - Wait for EC_LPC_CMDR_PENDING bit to clear
* - Write address to EC_LPC_ADDR_ACPI_DATA
* - Wait for EC_LPC_CMDR_DATA bit to set
* - Read value from EC_LPC_ADDR_ACPI_DATA
*/
#define EC_CMD_ACPI_READ 0x0080
/*
* ACPI Write Embedded Controller
*
* This reads from ACPI memory space on the EC (EC_ACPI_MEM_*).
*
* Use the following sequence:
*
* - Write EC_CMD_ACPI_WRITE to EC_LPC_ADDR_ACPI_CMD
* - Wait for EC_LPC_CMDR_PENDING bit to clear
* - Write address to EC_LPC_ADDR_ACPI_DATA
* - Wait for EC_LPC_CMDR_PENDING bit to clear
* - Write value to EC_LPC_ADDR_ACPI_DATA
*/
#define EC_CMD_ACPI_WRITE 0x0081
/*
* ACPI Burst Enable Embedded Controller
*
* This enables burst mode on the EC to allow the host to issue several
* commands back-to-back. While in this mode, writes to mapped multi-byte
* data are locked out to ensure data consistency.
*/
#define EC_CMD_ACPI_BURST_ENABLE 0x0082
/*
* ACPI Burst Disable Embedded Controller
*
* This disables burst mode on the EC and stops preventing EC writes to mapped
* multi-byte data.
*/
#define EC_CMD_ACPI_BURST_DISABLE 0x0083
/*
* ACPI Query Embedded Controller
*
* This clears the lowest-order bit in the currently pending host events, and
* sets the result code to the 1-based index of the bit (event 0x00000001 = 1,
* event 0x80000000 = 32), or 0 if no event was pending.
*/
#define EC_CMD_ACPI_QUERY_EVENT 0x0084
/* Valid addresses in ACPI memory space, for read/write commands */
/* Memory space version; set to EC_ACPI_MEM_VERSION_CURRENT */
#define EC_ACPI_MEM_VERSION 0x00
/*
* Test location; writing value here updates test compliment byte to (0xff -
* value).
*/
#define EC_ACPI_MEM_TEST 0x01
/* Test compliment; writes here are ignored. */
#define EC_ACPI_MEM_TEST_COMPLIMENT 0x02
/* Keyboard backlight brightness percent (0 - 100) */
#define EC_ACPI_MEM_KEYBOARD_BACKLIGHT 0x03
/* DPTF Target Fan Duty (0-100, 0xff for auto/none) */
#define EC_ACPI_MEM_FAN_DUTY 0x04
/*
* DPTF temp thresholds. Any of the EC's temp sensors can have up to two
* independent thresholds attached to them. The current value of the ID
* register determines which sensor is affected by the THRESHOLD and COMMIT
* registers. The THRESHOLD register uses the same EC_TEMP_SENSOR_OFFSET scheme
* as the memory-mapped sensors. The COMMIT register applies those settings.
*
* The spec does not mandate any way to read back the threshold settings
* themselves, but when a threshold is crossed the AP needs a way to determine
* which sensor(s) are responsible. Each reading of the ID register clears and
* returns one sensor ID that has crossed one of its threshold (in either
* direction) since the last read. A value of 0xFF means "no new thresholds
* have tripped". Setting or enabling the thresholds for a sensor will clear
* the unread event count for that sensor.
*/
#define EC_ACPI_MEM_TEMP_ID 0x05
#define EC_ACPI_MEM_TEMP_THRESHOLD 0x06
#define EC_ACPI_MEM_TEMP_COMMIT 0x07
/*
* Here are the bits for the COMMIT register:
* bit 0 selects the threshold index for the chosen sensor (0/1)
* bit 1 enables/disables the selected threshold (0 = off, 1 = on)
* Each write to the commit register affects one threshold.
*/
#define EC_ACPI_MEM_TEMP_COMMIT_SELECT_MASK (1 << 0)
#define EC_ACPI_MEM_TEMP_COMMIT_ENABLE_MASK (1 << 1)
/*
* Example:
*
* Set the thresholds for sensor 2 to 50 C and 60 C:
* write 2 to [0x05] -- select temp sensor 2
* write 0x7b to [0x06] -- C_TO_K(50) - EC_TEMP_SENSOR_OFFSET
* write 0x2 to [0x07] -- enable threshold 0 with this value
* write 0x85 to [0x06] -- C_TO_K(60) - EC_TEMP_SENSOR_OFFSET
* write 0x3 to [0x07] -- enable threshold 1 with this value
*
* Disable the 60 C threshold, leaving the 50 C threshold unchanged:
* write 2 to [0x05] -- select temp sensor 2
* write 0x1 to [0x07] -- disable threshold 1
*/
/* DPTF battery charging current limit */
#define EC_ACPI_MEM_CHARGING_LIMIT 0x08
/* Charging limit is specified in 64 mA steps */
#define EC_ACPI_MEM_CHARGING_LIMIT_STEP_MA 64
/* Value to disable DPTF battery charging limit */
#define EC_ACPI_MEM_CHARGING_LIMIT_DISABLED 0xff
/*
* Report device orientation
* bit 0 device is tablet mode
*/
#define EC_ACPI_MEM_DEVICE_ORIENTATION 0x09
#define EC_ACPI_MEM_DEVICE_TABLET_MODE 0x01
/*
* Report device features. Uses the same format as the host command, except:
*
* bit 0 (EC_FEATURE_LIMITED) changes meaning from "EC code has a limited set
* of features", which is of limited interest when the system is already
* interpreting ACPI bytecode, to "EC_FEATURES[0-7] is not supported". Since
* these are supported, it defaults to 0.
* This allows detecting the presence of this field since older versions of
* the EC codebase would simply return 0xff to that unknown address. Check
* FEATURES0 != 0xff (or FEATURES0[0] == 0) to make sure that the other bits
* are valid.
*/
#define EC_ACPI_MEM_DEVICE_FEATURES0 0x0a
#define EC_ACPI_MEM_DEVICE_FEATURES1 0x0b
#define EC_ACPI_MEM_DEVICE_FEATURES2 0x0c
#define EC_ACPI_MEM_DEVICE_FEATURES3 0x0d
#define EC_ACPI_MEM_DEVICE_FEATURES4 0x0e
#define EC_ACPI_MEM_DEVICE_FEATURES5 0x0f
#define EC_ACPI_MEM_DEVICE_FEATURES6 0x10
#define EC_ACPI_MEM_DEVICE_FEATURES7 0x11
/*
* ACPI addresses 0x20 - 0xff map to EC_MEMMAP offset 0x00 - 0xdf. This data
* is read-only from the AP. Added in EC_ACPI_MEM_VERSION 2.
*/
#define EC_ACPI_MEM_MAPPED_BEGIN 0x20
#define EC_ACPI_MEM_MAPPED_SIZE 0xe0
/* Current version of ACPI memory address space */
#define EC_ACPI_MEM_VERSION_CURRENT 2
/*
* This header file is used in coreboot both in C and ACPI code. The ACPI code
* is pre-processed to handle constants but the ASL compiler is unable to
* handle actual C code so keep it separate.
*/
#ifndef __ACPI__
/*
* Define __packed if someone hasn't beat us to it. Linux kernel style
* checking prefers __packed over __attribute__((packed)).
*/
#ifndef __packed
#define __packed __attribute__((packed))
#endif
#ifndef __aligned
#define __aligned(x) __attribute__((aligned(x)))
#endif
/*
* Attributes for EC request and response packets. Just defining __packed
* results in inefficient assembly code on ARM, if the structure is actually
* 32-bit aligned, as it should be for all buffers.
*
* Be very careful when adding these to existing structures. They will round
* up the structure size to the specified boundary.
*
* Also be very careful to make that if a structure is included in some other
* parent structure that the alignment will still be true given the packing of
* the parent structure. This is particularly important if the sub-structure
* will be passed as a pointer to another function, since that function will
* not know about the misaligment caused by the parent structure's packing.
*
* Also be very careful using __packed - particularly when nesting non-packed
* structures inside packed ones. In fact, DO NOT use __packed directly;
* always use one of these attributes.
*
* Once everything is annotated properly, the following search strings should
* not return ANY matches in this file other than right here:
*
* "__packed" - generates inefficient code; all sub-structs must also be packed
*
* "struct [^_]" - all structs should be annotated, except for structs that are
* members of other structs/unions (and their original declarations should be
* annotated).
*/
#ifdef CONFIG_HOSTCMD_ALIGNED
/*
* Packed structures where offset and size are always aligned to 1, 2, or 4
* byte boundary.
*/
#define __ec_align1 __packed
#define __ec_align2 __packed __aligned(2)
#define __ec_align4 __packed __aligned(4)
/*
* Packed structure which must be under-aligned, because its size is not a
* 4-byte multiple. This is sub-optimal because it forces byte-wise access
* of all multi-byte fields in it, even though they are themselves aligned.
*
* In theory, we could duplicate the structure with __aligned(4) for accessing
* its members, but use the __packed version for sizeof().
*/
#define __ec_align_size1 __packed
/*
* Packed structure which must be under-aligned, because its offset inside a
* parent structure is not a 4-byte multiple.
*/
#define __ec_align_offset1 __packed
#define __ec_align_offset2 __packed __aligned(2)
/*
* Structures which are complicated enough that I'm skipping them on the first
* pass. They are effectively unchanged from their previous definitions.
*
* TODO(rspangler): Figure out what to do with these. It's likely necessary
* to work out the size and offset of each member and add explicit padding to
* maintain those.
*/
#define __ec_todo_packed __packed
#define __ec_todo_unpacked
#else /* !CONFIG_HOSTCMD_ALIGNED */
/*
* Packed structures make no assumption about alignment, so they do inefficient
* byte-wise reads.
*/
#define __ec_align1 __packed
#define __ec_align2 __packed
#define __ec_align4 __packed
#define __ec_align_size1 __packed
#define __ec_align_offset1 __packed
#define __ec_align_offset2 __packed
#define __ec_todo_packed __packed
#define __ec_todo_unpacked
#endif /* !CONFIG_HOSTCMD_ALIGNED */
/* LPC command status byte masks */
/* EC has written a byte in the data register and host hasn't read it yet */
#define EC_LPC_STATUS_TO_HOST 0x01
/* Host has written a command/data byte and the EC hasn't read it yet */
#define EC_LPC_STATUS_FROM_HOST 0x02
/* EC is processing a command */
#define EC_LPC_STATUS_PROCESSING 0x04
/* Last write to EC was a command, not data */
#define EC_LPC_STATUS_LAST_CMD 0x08
/* EC is in burst mode */
#define EC_LPC_STATUS_BURST_MODE 0x10
/* SCI event is pending (requesting SCI query) */
#define EC_LPC_STATUS_SCI_PENDING 0x20
/* SMI event is pending (requesting SMI query) */
#define EC_LPC_STATUS_SMI_PENDING 0x40
/* (reserved) */
#define EC_LPC_STATUS_RESERVED 0x80
/*
* EC is busy. This covers both the EC processing a command, and the host has
* written a new command but the EC hasn't picked it up yet.
*/
#define EC_LPC_STATUS_BUSY_MASK \
(EC_LPC_STATUS_FROM_HOST | EC_LPC_STATUS_PROCESSING)
/* Host command response codes (16-bit). Note that response codes should be
* stored in a uint16_t rather than directly in a value of this type.
*/
enum ec_status {
EC_RES_SUCCESS = 0,
EC_RES_INVALID_COMMAND = 1,
EC_RES_ERROR = 2,
EC_RES_INVALID_PARAM = 3,
EC_RES_ACCESS_DENIED = 4,
EC_RES_INVALID_RESPONSE = 5,
EC_RES_INVALID_VERSION = 6,
EC_RES_INVALID_CHECKSUM = 7,
EC_RES_IN_PROGRESS = 8, /* Accepted, command in progress */
EC_RES_UNAVAILABLE = 9, /* No response available */
EC_RES_TIMEOUT = 10, /* We got a timeout */
EC_RES_OVERFLOW = 11, /* Table / data overflow */
EC_RES_INVALID_HEADER = 12, /* Header contains invalid data */
EC_RES_REQUEST_TRUNCATED = 13, /* Didn't get the entire request */
EC_RES_RESPONSE_TOO_BIG = 14, /* Response was too big to handle */
EC_RES_BUS_ERROR = 15, /* Communications bus error */
EC_RES_BUSY = 16, /* Up but too busy. Should retry */
EC_RES_INVALID_HEADER_VERSION = 17, /* Header version invalid */
EC_RES_INVALID_HEADER_CRC = 18, /* Header CRC invalid */
EC_RES_INVALID_DATA_CRC = 19, /* Data CRC invalid */
EC_RES_DUP_UNAVAILABLE = 20, /* Can't resend response */
};
/*
* Host event codes. Note these are 1-based, not 0-based, because ACPI query
* EC command uses code 0 to mean "no event pending". We explicitly specify
* each value in the enum listing so they won't change if we delete/insert an
* item or rearrange the list (it needs to be stable across platforms, not
* just within a single compiled instance).
*/
enum host_event_code {
EC_HOST_EVENT_LID_CLOSED = 1,
EC_HOST_EVENT_LID_OPEN = 2,
EC_HOST_EVENT_POWER_BUTTON = 3,
EC_HOST_EVENT_AC_CONNECTED = 4,
EC_HOST_EVENT_AC_DISCONNECTED = 5,
EC_HOST_EVENT_BATTERY_LOW = 6,
EC_HOST_EVENT_BATTERY_CRITICAL = 7,
EC_HOST_EVENT_BATTERY = 8,
EC_HOST_EVENT_THERMAL_THRESHOLD = 9,
/* Event generated by a device attached to the EC */
EC_HOST_EVENT_DEVICE = 10,
EC_HOST_EVENT_THERMAL = 11,
EC_HOST_EVENT_USB_CHARGER = 12,
EC_HOST_EVENT_KEY_PRESSED = 13,
/*
* EC has finished initializing the host interface. The host can check
* for this event following sending a EC_CMD_REBOOT_EC command to
* determine when the EC is ready to accept subsequent commands.
*/
EC_HOST_EVENT_INTERFACE_READY = 14,
/* Keyboard recovery combo has been pressed */
EC_HOST_EVENT_KEYBOARD_RECOVERY = 15,
/* Shutdown due to thermal overload */
EC_HOST_EVENT_THERMAL_SHUTDOWN = 16,
/* Shutdown due to battery level too low */
EC_HOST_EVENT_BATTERY_SHUTDOWN = 17,
/* Suggest that the AP throttle itself */
EC_HOST_EVENT_THROTTLE_START = 18,
/* Suggest that the AP resume normal speed */
EC_HOST_EVENT_THROTTLE_STOP = 19,
/* Hang detect logic detected a hang and host event timeout expired */
EC_HOST_EVENT_HANG_DETECT = 20,
/* Hang detect logic detected a hang and warm rebooted the AP */
EC_HOST_EVENT_HANG_REBOOT = 21,
/* PD MCU triggering host event */
EC_HOST_EVENT_PD_MCU = 22,
/* Battery Status flags have changed */
EC_HOST_EVENT_BATTERY_STATUS = 23,
/* EC encountered a panic, triggering a reset */
EC_HOST_EVENT_PANIC = 24,
/* Keyboard fastboot combo has been pressed */
EC_HOST_EVENT_KEYBOARD_FASTBOOT = 25,
/* EC RTC event occurred */
EC_HOST_EVENT_RTC = 26,
/* Emulate MKBP event */
EC_HOST_EVENT_MKBP = 27,
/* EC desires to change state of host-controlled USB mux */
EC_HOST_EVENT_USB_MUX = 28,
/* TABLET/LAPTOP mode event*/
EC_HOST_EVENT_MODE_CHANGE = 29,
/* Keyboard recovery combo with hardware reinitialization */
EC_HOST_EVENT_KEYBOARD_RECOVERY_HW_REINIT = 30,
/*
* The high bit of the event mask is not used as a host event code. If
* it reads back as set, then the entire event mask should be
* considered invalid by the host. This can happen when reading the
* raw event status via EC_MEMMAP_HOST_EVENTS but the LPC interface is
* not initialized on the EC, or improperly configured on the host.
*/
EC_HOST_EVENT_INVALID = 32
};
/* Host event mask */
#define EC_HOST_EVENT_MASK(event_code) (1ULL << ((event_code) - 1))
/* Arguments at EC_LPC_ADDR_HOST_ARGS */
struct __ec_align4 ec_lpc_host_args {
uint8_t flags;
uint8_t command_version;
uint8_t data_size;
/*
* Checksum; sum of command + flags + command_version + data_size +
* all params/response data bytes.
*/
uint8_t checksum;
};
/* Flags for ec_lpc_host_args.flags */
/*
* Args are from host. Data area at EC_LPC_ADDR_HOST_PARAM contains command
* params.
*
* If EC gets a command and this flag is not set, this is an old-style command.
* Command version is 0 and params from host are at EC_LPC_ADDR_OLD_PARAM with
* unknown length. EC must respond with an old-style response (that is,
* without setting EC_HOST_ARGS_FLAG_TO_HOST).
*/
#define EC_HOST_ARGS_FLAG_FROM_HOST 0x01
/*
* Args are from EC. Data area at EC_LPC_ADDR_HOST_PARAM contains response.
*
* If EC responds to a command and this flag is not set, this is an old-style
* response. Command version is 0 and response data from EC is at
* EC_LPC_ADDR_OLD_PARAM with unknown length.
*/
#define EC_HOST_ARGS_FLAG_TO_HOST 0x02
/*****************************************************************************/
/*
* Byte codes returned by EC over SPI interface.
*
* These can be used by the AP to debug the EC interface, and to determine
* when the EC is not in a state where it will ever get around to responding
* to the AP.
*
* Example of sequence of bytes read from EC for a current good transfer:
* 1. - - AP asserts chip select (CS#)
* 2. EC_SPI_OLD_READY - AP sends first byte(s) of request
* 3. - - EC starts handling CS# interrupt
* 4. EC_SPI_RECEIVING - AP sends remaining byte(s) of request
* 5. EC_SPI_PROCESSING - EC starts processing request; AP is clocking in
* bytes looking for EC_SPI_FRAME_START
* 6. - - EC finishes processing and sets up response
* 7. EC_SPI_FRAME_START - AP reads frame byte
* 8. (response packet) - AP reads response packet
* 9. EC_SPI_PAST_END - Any additional bytes read by AP
* 10 - - AP deasserts chip select
* 11 - - EC processes CS# interrupt and sets up DMA for
* next request
*
* If the AP is waiting for EC_SPI_FRAME_START and sees any value other than
* the following byte values:
* EC_SPI_OLD_READY
* EC_SPI_RX_READY
* EC_SPI_RECEIVING
* EC_SPI_PROCESSING
*
* Then the EC found an error in the request, or was not ready for the request
* and lost data. The AP should give up waiting for EC_SPI_FRAME_START,
* because the EC is unable to tell when the AP is done sending its request.
*/
/*
* Framing byte which precedes a response packet from the EC. After sending a
* request, the AP will clock in bytes until it sees the framing byte, then
* clock in the response packet.
*/
#define EC_SPI_FRAME_START 0xec
/*
* Padding bytes which are clocked out after the end of a response packet.
*/
#define EC_SPI_PAST_END 0xed
/*
* EC is ready to receive, and has ignored the byte sent by the AP. EC expects
* that the AP will send a valid packet header (starting with
* EC_COMMAND_PROTOCOL_3) in the next 32 bytes.
*/
#define EC_SPI_RX_READY 0xf8
/*
* EC has started receiving the request from the AP, but hasn't started
* processing it yet.
*/
#define EC_SPI_RECEIVING 0xf9
/* EC has received the entire request from the AP and is processing it. */
#define EC_SPI_PROCESSING 0xfa
/*
* EC received bad data from the AP, such as a packet header with an invalid
* length. EC will ignore all data until chip select deasserts.
*/
#define EC_SPI_RX_BAD_DATA 0xfb
/*
* EC received data from the AP before it was ready. That is, the AP asserted
* chip select and started clocking data before the EC was ready to receive it.
* EC will ignore all data until chip select deasserts.
*/
#define EC_SPI_NOT_READY 0xfc
/*
* EC was ready to receive a request from the AP. EC has treated the byte sent
* by the AP as part of a request packet, or (for old-style ECs) is processing
* a fully received packet but is not ready to respond yet.
*/
#define EC_SPI_OLD_READY 0xfd
/*****************************************************************************/
/*
* Protocol version 2 for I2C and SPI send a request this way:
*
* 0 EC_CMD_VERSION0 + (command version)
* 1 Command number
* 2 Length of params = N
* 3..N+2 Params, if any
* N+3 8-bit checksum of bytes 0..N+2
*
* The corresponding response is:
*
* 0 Result code (EC_RES_*)
* 1 Length of params = M
* 2..M+1 Params, if any
* M+2 8-bit checksum of bytes 0..M+1
*/
#define EC_PROTO2_REQUEST_HEADER_BYTES 3
#define EC_PROTO2_REQUEST_TRAILER_BYTES 1
#define EC_PROTO2_REQUEST_OVERHEAD (EC_PROTO2_REQUEST_HEADER_BYTES + \
EC_PROTO2_REQUEST_TRAILER_BYTES)
#define EC_PROTO2_RESPONSE_HEADER_BYTES 2
#define EC_PROTO2_RESPONSE_TRAILER_BYTES 1
#define EC_PROTO2_RESPONSE_OVERHEAD (EC_PROTO2_RESPONSE_HEADER_BYTES + \
EC_PROTO2_RESPONSE_TRAILER_BYTES)
/* Parameter length was limited by the LPC interface */
#define EC_PROTO2_MAX_PARAM_SIZE 0xfc
/* Maximum request and response packet sizes for protocol version 2 */
#define EC_PROTO2_MAX_REQUEST_SIZE (EC_PROTO2_REQUEST_OVERHEAD + \
EC_PROTO2_MAX_PARAM_SIZE)
#define EC_PROTO2_MAX_RESPONSE_SIZE (EC_PROTO2_RESPONSE_OVERHEAD + \
EC_PROTO2_MAX_PARAM_SIZE)
/*****************************************************************************/
/*
* Value written to legacy command port / prefix byte to indicate protocol
* 3+ structs are being used. Usage is bus-dependent.
*/
#define EC_COMMAND_PROTOCOL_3 0xda
#define EC_HOST_REQUEST_VERSION 3
/* Version 3 request from host */
struct __ec_align4 ec_host_request {
/* Structure version (=3)
*
* EC will return EC_RES_INVALID_HEADER if it receives a header with a
* version it doesn't know how to parse.
*/
uint8_t struct_version;
/*
* Checksum of request and data; sum of all bytes including checksum
* should total to 0.
*/
uint8_t checksum;
/* Command code */
uint16_t command;
/* Command version */
uint8_t command_version;
/* Unused byte in current protocol version; set to 0 */
uint8_t reserved;
/* Length of data which follows this header */
uint16_t data_len;
};
#define EC_HOST_RESPONSE_VERSION 3
/* Version 3 response from EC */
struct __ec_align4 ec_host_response {
/* Structure version (=3) */
uint8_t struct_version;
/*
* Checksum of response and data; sum of all bytes including checksum
* should total to 0.
*/
uint8_t checksum;
/* Result code (EC_RES_*) */
uint16_t result;
/* Length of data which follows this header */
uint16_t data_len;
/* Unused bytes in current protocol version; set to 0 */
uint16_t reserved;
};
/*****************************************************************************/
/*
* Host command protocol V4.
*
* Packets always start with a request or response header. They are followed
* by data_len bytes of data. If the data_crc_present flag is set, the data
* bytes are followed by a CRC-8 of that data, using using x^8 + x^2 + x + 1
* polynomial.
*
* Host algorithm when sending a request q:
*
* 101) tries_left=(some value, e.g. 3);
* 102) q.seq_num++
* 103) q.seq_dup=0
* 104) Calculate q.header_crc.
* 105) Send request q to EC.
* 106) Wait for response r. Go to 201 if received or 301 if timeout.
*
* 201) If r.struct_version != 4, go to 301.
* 202) If r.header_crc mismatches calculated CRC for r header, go to 301.
* 203) If r.data_crc_present and r.data_crc mismatches, go to 301.
* 204) If r.seq_num != q.seq_num, go to 301.
* 205) If r.seq_dup == q.seq_dup, return success.
* 207) If r.seq_dup == 1, go to 301.
* 208) Return error.
*
* 301) If --tries_left <= 0, return error.
* 302) If q.seq_dup == 1, go to 105.
* 303) q.seq_dup = 1
* 304) Go to 104.
*
* EC algorithm when receiving a request q.
* EC has response buffer r, error buffer e.
*
* 101) If q.struct_version != 4, set e.result = EC_RES_INVALID_HEADER_VERSION
* and go to 301
* 102) If q.header_crc mismatches calculated CRC, set e.result =
* EC_RES_INVALID_HEADER_CRC and go to 301
* 103) If q.data_crc_present, calculate data CRC. If that mismatches the CRC
* byte at the end of the packet, set e.result = EC_RES_INVALID_DATA_CRC
* and go to 301.
* 104) If q.seq_dup == 0, go to 201.
* 105) If q.seq_num != r.seq_num, go to 201.
* 106) If q.seq_dup == r.seq_dup, go to 205, else go to 203.
*
* 201) Process request q into response r.
* 202) r.seq_num = q.seq_num
* 203) r.seq_dup = q.seq_dup
* 204) Calculate r.header_crc
* 205) If r.data_len > 0 and data is no longer available, set e.result =
* EC_RES_DUP_UNAVAILABLE and go to 301.
* 206) Send response r.
*
* 301) e.seq_num = q.seq_num
* 302) e.seq_dup = q.seq_dup
* 303) Calculate e.header_crc.
* 304) Send error response e.
*/
/* Version 4 request from host */
struct __ec_align4 ec_host_request4 {
/*
* bits 0-3: struct_version: Structure version (=4)
* bit 4: is_response: Is response (=0)
* bits 5-6: seq_num: Sequence number
* bit 7: seq_dup: Sequence duplicate flag
*/
uint8_t fields0;
/*
* bits 0-4: command_version: Command version
* bits 5-6: Reserved (set 0, ignore on read)
* bit 7: data_crc_present: Is data CRC present after data
*/
uint8_t fields1;
/* Command code (EC_CMD_*) */
uint16_t command;
/* Length of data which follows this header (not including data CRC) */
uint16_t data_len;
/* Reserved (set 0, ignore on read) */
uint8_t reserved;
/* CRC-8 of above fields, using x^8 + x^2 + x + 1 polynomial */
uint8_t header_crc;
};
/* Version 4 response from EC */
struct __ec_align4 ec_host_response4 {
/*
* bits 0-3: struct_version: Structure version (=4)
* bit 4: is_response: Is response (=1)
* bits 5-6: seq_num: Sequence number
* bit 7: seq_dup: Sequence duplicate flag
*/
uint8_t fields0;
/*
* bits 0-6: Reserved (set 0, ignore on read)
* bit 7: data_crc_present: Is data CRC present after data
*/
uint8_t fields1;
/* Result code (EC_RES_*) */
uint16_t result;
/* Length of data which follows this header (not including data CRC) */
uint16_t data_len;
/* Reserved (set 0, ignore on read) */
uint8_t reserved;
/* CRC-8 of above fields, using x^8 + x^2 + x + 1 polynomial */
uint8_t header_crc;
};
/* Fields in fields0 byte */
#define EC_PACKET4_0_STRUCT_VERSION_MASK 0x0f
#define EC_PACKET4_0_IS_RESPONSE_MASK 0x10
#define EC_PACKET4_0_SEQ_NUM_SHIFT 5
#define EC_PACKET4_0_SEQ_NUM_MASK 0x60
#define EC_PACKET4_0_SEQ_DUP_MASK 0x80
/* Fields in fields1 byte */
#define EC_PACKET4_1_COMMAND_VERSION_MASK 0x1f /* (request only) */
#define EC_PACKET4_1_DATA_CRC_PRESENT_MASK 0x80
/*****************************************************************************/
/*
* Notes on commands:
*
* Each command is an 16-bit command value. Commands which take params or
* return response data specify structures for that data. If no structure is
* specified, the command does not input or output data, respectively.
* Parameter/response length is implicit in the structs. Some underlying
* communication protocols (I2C, SPI) may add length or checksum headers, but
* those are implementation-dependent and not defined here.
*
* All commands MUST be #defined to be 4-digit UPPER CASE hex values
* (e.g., 0x00AB, not 0xab) for CONFIG_HOSTCMD_SECTION_SORTED to work.
*/
/*****************************************************************************/
/* General / test commands */
/*
* Get protocol version, used to deal with non-backward compatible protocol
* changes.
*/
#define EC_CMD_PROTO_VERSION 0x0000
struct __ec_align4 ec_response_proto_version {
uint32_t version;
};
/*
* Hello. This is a simple command to test the EC is responsive to
* commands.
*/
#define EC_CMD_HELLO 0x0001
struct __ec_align4 ec_params_hello {
uint32_t in_data; /* Pass anything here */
};
struct __ec_align4 ec_response_hello {
uint32_t out_data; /* Output will be in_data + 0x01020304 */
};
/* Get version number */
#define EC_CMD_GET_VERSION 0x0002
enum ec_current_image {
EC_IMAGE_UNKNOWN = 0,
EC_IMAGE_RO,
EC_IMAGE_RW
};
struct __ec_align4 ec_response_get_version {
/* Null-terminated version strings for RO, RW */
char version_string_ro[32];
char version_string_rw[32];
char reserved[32]; /* Was previously RW-B string */
uint32_t current_image; /* One of ec_current_image */
};
/* Read test */
#define EC_CMD_READ_TEST 0x0003
struct __ec_align4 ec_params_read_test {
uint32_t offset; /* Starting value for read buffer */
uint32_t size; /* Size to read in bytes */
};
struct __ec_align4 ec_response_read_test {
uint32_t data[32];
};
/*
* Get build information
*
* Response is null-terminated string.
*/
#define EC_CMD_GET_BUILD_INFO 0x0004
/* Get chip info */
#define EC_CMD_GET_CHIP_INFO 0x0005
struct __ec_align4 ec_response_get_chip_info {
/* Null-terminated strings */
char vendor[32];
char name[32];
char revision[32]; /* Mask version */
};
/* Get board HW version */
#define EC_CMD_GET_BOARD_VERSION 0x0006
struct __ec_align2 ec_response_board_version {
uint16_t board_version; /* A monotonously incrementing number. */
};
/*
* Read memory-mapped data.
*
* This is an alternate interface to memory-mapped data for bus protocols
* which don't support direct-mapped memory - I2C, SPI, etc.
*
* Response is params.size bytes of data.
*/
#define EC_CMD_READ_MEMMAP 0x0007
struct __ec_align1 ec_params_read_memmap {
uint8_t offset; /* Offset in memmap (EC_MEMMAP_*) */
uint8_t size; /* Size to read in bytes */
};
/* Read versions supported for a command */
#define EC_CMD_GET_CMD_VERSIONS 0x0008
struct __ec_align1 ec_params_get_cmd_versions {
uint8_t cmd; /* Command to check */
};
struct __ec_align2 ec_params_get_cmd_versions_v1 {
uint16_t cmd; /* Command to check */
};
struct __ec_align4 ec_response_get_cmd_versions {
/*
* Mask of supported versions; use EC_VER_MASK() to compare with a
* desired version.
*/
uint32_t version_mask;
};
/*
* Check EC communications status (busy). This is needed on i2c/spi but not
* on lpc since it has its own out-of-band busy indicator.
*
* lpc must read the status from the command register. Attempting this on
* lpc will overwrite the args/parameter space and corrupt its data.
*/
#define EC_CMD_GET_COMMS_STATUS 0x0009
/* Avoid using ec_status which is for return values */
enum ec_comms_status {
EC_COMMS_STATUS_PROCESSING = 1 << 0, /* Processing cmd */
};
struct __ec_align4 ec_response_get_comms_status {
uint32_t flags; /* Mask of enum ec_comms_status */
};
/* Fake a variety of responses, purely for testing purposes. */
#define EC_CMD_TEST_PROTOCOL 0x000A
/* Tell the EC what to send back to us. */
struct __ec_align4 ec_params_test_protocol {
uint32_t ec_result;
uint32_t ret_len;
uint8_t buf[32];
};
/* Here it comes... */
struct __ec_align4 ec_response_test_protocol {
uint8_t buf[32];
};
/* Get protocol information */
#define EC_CMD_GET_PROTOCOL_INFO 0x000B
/* Flags for ec_response_get_protocol_info.flags */
/* EC_RES_IN_PROGRESS may be returned if a command is slow */
#define EC_PROTOCOL_INFO_IN_PROGRESS_SUPPORTED (1 << 0)
struct __ec_align4 ec_response_get_protocol_info {
/* Fields which exist if at least protocol version 3 supported */
/* Bitmask of protocol versions supported (1 << n means version n)*/
uint32_t protocol_versions;
/* Maximum request packet size, in bytes */
uint16_t max_request_packet_size;
/* Maximum response packet size, in bytes */
uint16_t max_response_packet_size;
/* Flags; see EC_PROTOCOL_INFO_* */
uint32_t flags;
};
/*****************************************************************************/
/* Get/Set miscellaneous values */
/* The upper byte of .flags tells what to do (nothing means "get") */
#define EC_GSV_SET 0x80000000
/* The lower three bytes of .flags identifies the parameter, if that has
meaning for an individual command. */
#define EC_GSV_PARAM_MASK 0x00ffffff
struct __ec_align4 ec_params_get_set_value {
uint32_t flags;
uint32_t value;
};
struct __ec_align4 ec_response_get_set_value {
uint32_t flags;
uint32_t value;
};
/* More than one command can use these structs to get/set parameters. */
#define EC_CMD_GSV_PAUSE_IN_S5 0x000C
/*****************************************************************************/
/* List the features supported by the firmware */
#define EC_CMD_GET_FEATURES 0x000D
/* Supported features */
enum ec_feature_code {
/*
* This image contains a limited set of features. Another image
* in RW partition may support more features.
*/
EC_FEATURE_LIMITED = 0,
/*
* Commands for probing/reading/writing/erasing the flash in the
* EC are present.
*/
EC_FEATURE_FLASH = 1,
/*
* Can control the fan speed directly.
*/
EC_FEATURE_PWM_FAN = 2,
/*
* Can control the intensity of the keyboard backlight.
*/
EC_FEATURE_PWM_KEYB = 3,
/*
* Support Google lightbar, introduced on Pixel.
*/
EC_FEATURE_LIGHTBAR = 4,
/* Control of LEDs */
EC_FEATURE_LED = 5,
/* Exposes an interface to control gyro and sensors.
* The host goes through the EC to access these sensors.
* In addition, the EC may provide composite sensors, like lid angle.
*/
EC_FEATURE_MOTION_SENSE = 6,
/* The keyboard is controlled by the EC */
EC_FEATURE_KEYB = 7,
/* The AP can use part of the EC flash as persistent storage. */
EC_FEATURE_PSTORE = 8,
/* The EC monitors BIOS port 80h, and can return POST codes. */
EC_FEATURE_PORT80 = 9,
/*
* Thermal management: include TMP specific commands.
* Higher level than direct fan control.
*/
EC_FEATURE_THERMAL = 10,
/* Can switch the screen backlight on/off */
EC_FEATURE_BKLIGHT_SWITCH = 11,
/* Can switch the wifi module on/off */
EC_FEATURE_WIFI_SWITCH = 12,
/* Monitor host events, through for example SMI or SCI */
EC_FEATURE_HOST_EVENTS = 13,
/* The EC exposes GPIO commands to control/monitor connected devices. */
EC_FEATURE_GPIO = 14,
/* The EC can send i2c messages to downstream devices. */
EC_FEATURE_I2C = 15,
/* Command to control charger are included */
EC_FEATURE_CHARGER = 16,
/* Simple battery support. */
EC_FEATURE_BATTERY = 17,
/*
* Support Smart battery protocol
* (Common Smart Battery System Interface Specification)
*/
EC_FEATURE_SMART_BATTERY = 18,
/* EC can detect when the host hangs. */
EC_FEATURE_HANG_DETECT = 19,
/* Report power information, for pit only */
EC_FEATURE_PMU = 20,
/* Another Cros EC device is present downstream of this one */
EC_FEATURE_SUB_MCU = 21,
/* Support USB Power delivery (PD) commands */
EC_FEATURE_USB_PD = 22,
/* Control USB multiplexer, for audio through USB port for instance. */
EC_FEATURE_USB_MUX = 23,
/* Motion Sensor code has an internal software FIFO */
EC_FEATURE_MOTION_SENSE_FIFO = 24,
/* Support temporary secure vstore */
EC_FEATURE_VSTORE = 25,
/* EC decides on USB-C SS mux state, muxes configured by host */
EC_FEATURE_USBC_SS_MUX_VIRTUAL = 26,
/* EC has RTC feature that can be controlled by host commands */
EC_FEATURE_RTC = 27,
/* The MCU exposes a Fingerprint sensor */
EC_FEATURE_FINGERPRINT = 28,
/* The MCU exposes a Touchpad */
EC_FEATURE_TOUCHPAD = 29,
/* The MCU has RWSIG task enabled */
EC_FEATURE_RWSIG = 30,
/* EC has device events support */
EC_FEATURE_DEVICE_EVENT = 31,
/* EC supports the unified wake masks for LPC/eSPI systems */
EC_FEATURE_UNIFIED_WAKE_MASKS = 32,
/* EC supports 64-bit host events */
EC_FEATURE_HOST_EVENT64 = 33,
};
#define EC_FEATURE_MASK_0(event_code) (1UL << (event_code % 32))
#define EC_FEATURE_MASK_1(event_code) (1UL << (event_code - 32))
struct __ec_align4 ec_response_get_features {
uint32_t flags[2];
};
/*****************************************************************************/
/* 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_align4 ec_sku_id_info {
uint32_t sku_id;
};
/*****************************************************************************/
/* Flash commands */
/* Get flash info */
#define EC_CMD_FLASH_INFO 0x0010
#define EC_VER_FLASH_INFO 2
/* Version 0 returns these fields */
struct __ec_align4 ec_response_flash_info {
/* Usable flash size, in bytes */
uint32_t flash_size;
/*
* Write block size. Write offset and size must be a multiple
* of this.
*/
uint32_t write_block_size;
/*
* Erase block size. Erase offset and size must be a multiple
* of this.
*/
uint32_t erase_block_size;
/*
* Protection block size. Protection offset and size must be a
* multiple of this.
*/
uint32_t protect_block_size;
};
/* Flags for version 1+ flash info command */
/* EC flash erases bits to 0 instead of 1 */
#define EC_FLASH_INFO_ERASE_TO_0 (1 << 0)
/* Flash must be selected for read/write/erase operations to succeed. This may
* be necessary on a chip where write/erase can be corrupted by other board
* activity, or where the chip needs to enable some sort of programming voltage,
* or where the read/write/erase operations require cleanly suspending other
* chip functionality. */
#define EC_FLASH_INFO_SELECT_REQUIRED (1 << 1)
/*
* Version 1 returns the same initial fields as version 0, with additional
* fields following.
*
* gcc anonymous structs don't seem to get along with the __packed directive;
* if they did we'd define the version 0 structure as a sub-structure of this
* one.
*
* Version 2 supports flash banks of different sizes:
* The caller specified the number of banks it has preallocated
* (num_banks_desc)
* The EC returns the number of banks describing the flash memory.
* It adds banks descriptions up to num_banks_desc.
*/
struct __ec_align4 ec_response_flash_info_1 {
/* Version 0 fields; see above for description */
uint32_t flash_size;
uint32_t write_block_size;
uint32_t erase_block_size;
uint32_t protect_block_size;
/* Version 1 adds these fields: */
/*
* Ideal write size in bytes. Writes will be fastest if size is
* exactly this and offset is a multiple of this. For example, an EC
* may have a write buffer which can do half-page operations if data is
* aligned, and a slower word-at-a-time write mode.
*/
uint32_t write_ideal_size;
/* Flags; see EC_FLASH_INFO_* */
uint32_t flags;
};
struct __ec_align4 ec_params_flash_info_2 {
/* Number of banks to describe */
uint16_t num_banks_desc;
/* Reserved; set 0; ignore on read */
uint8_t reserved[2];
};
struct ec_flash_bank {
/* Number of sector is in this bank. */
uint16_t count;
/* Size in power of 2 of each sector (8 --> 256 bytes) */
uint8_t size_exp;
/* Minimal write size for the sectors in this bank */
uint8_t write_size_exp;
/* Erase size for the sectors in this bank */
uint8_t erase_size_exp;
/* Size for write protection, usually identical to erase size. */
uint8_t protect_size_exp;
/* Reserved; set 0; ignore on read */
uint8_t reserved[2];
};
struct __ec_align4 ec_response_flash_info_2 {
/* Total flash in the EC. */
uint32_t flash_size;
/* Flags; see EC_FLASH_INFO_* */
uint32_t flags;
/* Maximum size to use to send data to write to the EC. */
uint32_t write_ideal_size;
/* Number of banks present in the EC. */
uint16_t num_banks_total;
/* Number of banks described in banks array. */
uint16_t num_banks_desc;
struct ec_flash_bank banks[0];
};
/*
* Read flash
*
* Response is params.size bytes of data.
*/
#define EC_CMD_FLASH_READ 0x0011
struct __ec_align4 ec_params_flash_read {
uint32_t offset; /* Byte offset to read */
uint32_t size; /* Size to read in bytes */
};
/* Write flash */
#define EC_CMD_FLASH_WRITE 0x0012
#define EC_VER_FLASH_WRITE 1
/* Version 0 of the flash command supported only 64 bytes of data */
#define EC_FLASH_WRITE_VER0_SIZE 64
struct __ec_align4 ec_params_flash_write {
uint32_t offset; /* Byte offset to write */
uint32_t size; /* Size to write in bytes */
/* Followed by data to write */
};
/* Erase flash */
#define EC_CMD_FLASH_ERASE 0x0013
/* v0 */
struct __ec_align4 ec_params_flash_erase {
uint32_t offset; /* Byte offset to erase */
uint32_t size; /* Size to erase in bytes */
};
#define EC_VER_FLASH_WRITE 1
/* v1 add async erase:
* subcommands can returns:
* EC_RES_SUCCESS : erased (see ERASE_SECTOR_ASYNC case below).
* EC_RES_INVALID_PARAM : offset/size are not aligned on a erase boundary.
* EC_RES_ERROR : other errors.
* EC_RES_BUSY : an existing erase operation is in progress.
* EC_RES_ACCESS_DENIED: Trying to erase running image.
*
* When ERASE_SECTOR_ASYNC returns EC_RES_SUCCESS, the operation is just
* properly queued. The user must call ERASE_GET_RESULT subcommand to get
* the proper result.
* When ERASE_GET_RESULT returns EC_RES_BUSY, the caller must wait and send
* ERASE_GET_RESULT again to get the result of ERASE_SECTOR_ASYNC.
* ERASE_GET_RESULT command may timeout on EC where flash access is not
* permitted while erasing. (For instance, STM32F4).
*/
enum ec_flash_erase_cmd {
FLASH_ERASE_SECTOR, /* Erase and wait for result */
FLASH_ERASE_SECTOR_ASYNC, /* Erase and return immediately. */
FLASH_ERASE_GET_RESULT, /* Ask for last erase result */
};
struct __ec_align4 ec_params_flash_erase_v1 {
/* One of ec_flash_erase_cmd. */
uint8_t cmd;
/* Pad byte; currently always contains 0 */
uint8_t reserved;
/* No flags defined yet; set to 0 */
uint16_t flag;
/* Same as v0 parameters. */
struct ec_params_flash_erase params;
};
/*
* Get/set flash protection.
*
* If mask!=0, sets/clear the requested bits of flags. Depending on the
* firmware write protect GPIO, not all flags will take effect immediately;
* some flags require a subsequent hard reset to take effect. Check the
* returned flags bits to see what actually happened.
*
* If mask=0, simply returns the current flags state.
*/
#define EC_CMD_FLASH_PROTECT 0x0015
#define EC_VER_FLASH_PROTECT 1 /* Command version 1 */
/* Flags for flash protection */
/* RO flash code protected when the EC boots */
#define EC_FLASH_PROTECT_RO_AT_BOOT (1 << 0)
/*
* RO flash code protected now. If this bit is set, at-boot status cannot
* be changed.
*/
#define EC_FLASH_PROTECT_RO_NOW (1 << 1)
/* Entire flash code protected now, until reboot. */
#define EC_FLASH_PROTECT_ALL_NOW (1 << 2)
/* Flash write protect GPIO is asserted now */
#define EC_FLASH_PROTECT_GPIO_ASSERTED (1 << 3)
/* Error - at least one bank of flash is stuck locked, and cannot be unlocked */
#define EC_FLASH_PROTECT_ERROR_STUCK (1 << 4)
/*
* Error - flash protection is in inconsistent state. At least one bank of
* flash which should be protected is not protected. Usually fixed by
* re-requesting the desired flags, or by a hard reset if that fails.
*/
#define EC_FLASH_PROTECT_ERROR_INCONSISTENT (1 << 5)
/* Entire flash code protected when the EC boots */
#define EC_FLASH_PROTECT_ALL_AT_BOOT (1 << 6)
/* RW flash code protected when the EC boots */
#define EC_FLASH_PROTECT_RW_AT_BOOT (1 << 7)
/* RW flash code protected now. */
#define EC_FLASH_PROTECT_RW_NOW (1 << 8)
/* Rollback information flash region protected when the EC boots */
#define EC_FLASH_PROTECT_ROLLBACK_AT_BOOT (1 << 9)
/* Rollback information flash region protected now */
#define EC_FLASH_PROTECT_ROLLBACK_NOW (1 << 10)
struct __ec_align4 ec_params_flash_protect {
uint32_t mask; /* Bits in flags to apply */
uint32_t flags; /* New flags to apply */
};
struct __ec_align4 ec_response_flash_protect {
/* Current value of flash protect flags */
uint32_t flags;
/*
* Flags which are valid on this platform. This allows the caller
* to distinguish between flags which aren't set vs. flags which can't
* be set on this platform.
*/
uint32_t valid_flags;
/* Flags which can be changed given the current protection state */
uint32_t writable_flags;
};
/*
* Note: commands 0x14 - 0x19 version 0 were old commands to get/set flash
* write protect. These commands may be reused with version > 0.
*/
/* Get the region offset/size */
#define EC_CMD_FLASH_REGION_INFO 0x0016
#define EC_VER_FLASH_REGION_INFO 1
enum ec_flash_region {
/* Region which holds read-only EC image */
EC_FLASH_REGION_RO = 0,
/*
* Region which holds active RW image. 'Active' is different from
* 'running'. Active means 'scheduled-to-run'. Since RO image always
* scheduled to run, active/non-active applies only to RW images (for
* the same reason 'update' applies only to RW images. It's a state of
* an image on a flash. Running image can be RO, RW_A, RW_B but active
* image can only be RW_A or RW_B. In recovery mode, an active RW image
* doesn't enter 'running' state but it's still active on a flash.
*/
EC_FLASH_REGION_ACTIVE,
/*
* Region which should be write-protected in the factory (a superset of
* EC_FLASH_REGION_RO)
*/
EC_FLASH_REGION_WP_RO,
/* Region which holds updatable (non-active) RW image */
EC_FLASH_REGION_UPDATE,
/* Number of regions */
EC_FLASH_REGION_COUNT,
};
/* 'RW' is vague if there are multiple RW images; we mean the active one,
* so the old constant is deprecated */
#define EC_FLASH_REGION_RW EC_FLASH_REGION_ACTIVE
struct __ec_align4 ec_params_flash_region_info {
uint32_t region; /* enum ec_flash_region */
};
struct __ec_align4 ec_response_flash_region_info {
uint32_t offset;
uint32_t size;
};
/* Read/write VbNvContext */
#define EC_CMD_VBNV_CONTEXT 0x0017
#define EC_VER_VBNV_CONTEXT 1
#define EC_VBNV_BLOCK_SIZE 16
enum ec_vbnvcontext_op {
EC_VBNV_CONTEXT_OP_READ,
EC_VBNV_CONTEXT_OP_WRITE,
};
struct __ec_align4 ec_params_vbnvcontext {
uint32_t op;
uint8_t block[EC_VBNV_BLOCK_SIZE];
};
struct __ec_align4 ec_response_vbnvcontext {
uint8_t block[EC_VBNV_BLOCK_SIZE];
};
/* Get SPI flash information */
#define EC_CMD_FLASH_SPI_INFO 0x0018
struct __ec_align1 ec_response_flash_spi_info {
/* JEDEC info from command 0x9F (manufacturer, memory type, size) */
uint8_t jedec[3];
/* Pad byte; currently always contains 0 */
uint8_t reserved0;
/* Manufacturer / device ID from command 0x90 */
uint8_t mfr_dev_id[2];
/* Status registers from command 0x05 and 0x35 */
uint8_t sr1, sr2;
};
/* Select flash during flash operations */
#define EC_CMD_FLASH_SELECT 0x0019
struct __ec_align4 ec_params_flash_select {
/* 1 to select flash, 0 to deselect flash */
uint8_t select;
};
/*****************************************************************************/
/* PWM commands */
/* Get fan target RPM */
#define EC_CMD_PWM_GET_FAN_TARGET_RPM 0x0020
struct __ec_align4 ec_response_pwm_get_fan_rpm {
uint32_t rpm;
};
/* Set target fan RPM */
#define EC_CMD_PWM_SET_FAN_TARGET_RPM 0x0021
/* Version 0 of input params */
struct __ec_align4 ec_params_pwm_set_fan_target_rpm_v0 {
uint32_t rpm;
};
/* Version 1 of input params */
struct __ec_align_size1 ec_params_pwm_set_fan_target_rpm_v1 {
uint32_t rpm;
uint8_t fan_idx;
};
/* Get keyboard backlight */
/* OBSOLETE - Use EC_CMD_PWM_SET_DUTY */
#define EC_CMD_PWM_GET_KEYBOARD_BACKLIGHT 0x0022
struct __ec_align1 ec_response_pwm_get_keyboard_backlight {
uint8_t percent;
uint8_t enabled;
};
/* Set keyboard backlight */
/* OBSOLETE - Use EC_CMD_PWM_SET_DUTY */
#define EC_CMD_PWM_SET_KEYBOARD_BACKLIGHT 0x0023
struct __ec_align1 ec_params_pwm_set_keyboard_backlight {
uint8_t percent;
};
/* Set target fan PWM duty cycle */
#define EC_CMD_PWM_SET_FAN_DUTY 0x0024
/* Version 0 of input params */
struct __ec_align4 ec_params_pwm_set_fan_duty_v0 {
uint32_t percent;
};
/* Version 1 of input params */
struct __ec_align_size1 ec_params_pwm_set_fan_duty_v1 {
uint32_t percent;
uint8_t fan_idx;
};
#define EC_CMD_PWM_SET_DUTY 0x0025
/* 16 bit duty cycle, 0xffff = 100% */
#define EC_PWM_MAX_DUTY 0xffff
enum ec_pwm_type {
/* All types, indexed by board-specific enum pwm_channel */
EC_PWM_TYPE_GENERIC = 0,
/* Keyboard backlight */
EC_PWM_TYPE_KB_LIGHT,
/* Display backlight */
EC_PWM_TYPE_DISPLAY_LIGHT,
EC_PWM_TYPE_COUNT,
};
struct __ec_align4 ec_params_pwm_set_duty {
uint16_t duty; /* Duty cycle, EC_PWM_MAX_DUTY = 100% */
uint8_t pwm_type; /* ec_pwm_type */
uint8_t index; /* Type-specific index, or 0 if unique */
};
#define EC_CMD_PWM_GET_DUTY 0x0026
struct __ec_align1 ec_params_pwm_get_duty {
uint8_t pwm_type; /* ec_pwm_type */
uint8_t index; /* Type-specific index, or 0 if unique */
};
struct __ec_align2 ec_response_pwm_get_duty {
uint16_t duty; /* Duty cycle, EC_PWM_MAX_DUTY = 100% */
};
/*****************************************************************************/
/*
* Lightbar commands. This looks worse than it is. Since we only use one HOST
* command to say "talk to the lightbar", we put the "and tell it to do X" part
* into a subcommand. We'll make separate structs for subcommands with
* different input args, so that we know how much to expect.
*/
#define EC_CMD_LIGHTBAR_CMD 0x0028
struct __ec_todo_unpacked rgb_s {
uint8_t r, g, b;
};
#define LB_BATTERY_LEVELS 4
/* List of tweakable parameters. NOTE: It's __packed so it can be sent in a
* host command, but the alignment is the same regardless. Keep it that way.
*/
struct __ec_todo_packed lightbar_params_v0 {
/* Timing */
int32_t google_ramp_up;
int32_t google_ramp_down;
int32_t s3s0_ramp_up;
int32_t s0_tick_delay[2]; /* AC=0/1 */
int32_t s0a_tick_delay[2]; /* AC=0/1 */
int32_t s0s3_ramp_down;
int32_t s3_sleep_for;
int32_t s3_ramp_up;
int32_t s3_ramp_down;
/* Oscillation */
uint8_t new_s0;
uint8_t osc_min[2]; /* AC=0/1 */
uint8_t osc_max[2]; /* AC=0/1 */
uint8_t w_ofs[2]; /* AC=0/1 */
/* Brightness limits based on the backlight and AC. */
uint8_t bright_bl_off_fixed[2]; /* AC=0/1 */
uint8_t bright_bl_on_min[2]; /* AC=0/1 */
uint8_t bright_bl_on_max[2]; /* AC=0/1 */
/* Battery level thresholds */
uint8_t battery_threshold[LB_BATTERY_LEVELS - 1];
/* Map [AC][battery_level] to color index */
uint8_t s0_idx[2][LB_BATTERY_LEVELS]; /* AP is running */
uint8_t s3_idx[2][LB_BATTERY_LEVELS]; /* AP is sleeping */
/* Color palette */
struct rgb_s color[8]; /* 0-3 are Google colors */
};
struct __ec_todo_packed lightbar_params_v1 {
/* Timing */
int32_t google_ramp_up;
int32_t google_ramp_down;
int32_t s3s0_ramp_up;
int32_t s0_tick_delay[2]; /* AC=0/1 */
int32_t s0a_tick_delay[2]; /* AC=0/1 */
int32_t s0s3_ramp_down;
int32_t s3_sleep_for;
int32_t s3_ramp_up;
int32_t s3_ramp_down;
int32_t s5_ramp_up;
int32_t s5_ramp_down;
int32_t tap_tick_delay;
int32_t tap_gate_delay;
int32_t tap_display_time;
/* Tap-for-battery params */
uint8_t tap_pct_red;
uint8_t tap_pct_green;
uint8_t tap_seg_min_on;
uint8_t tap_seg_max_on;
uint8_t tap_seg_osc;
uint8_t tap_idx[3];
/* Oscillation */
uint8_t osc_min[2]; /* AC=0/1 */
uint8_t osc_max[2]; /* AC=0/1 */
uint8_t w_ofs[2]; /* AC=0/1 */
/* Brightness limits based on the backlight and AC. */
uint8_t bright_bl_off_fixed[2]; /* AC=0/1 */
uint8_t bright_bl_on_min[2]; /* AC=0/1 */
uint8_t bright_bl_on_max[2]; /* AC=0/1 */
/* Battery level thresholds */
uint8_t battery_threshold[LB_BATTERY_LEVELS - 1];
/* Map [AC][battery_level] to color index */
uint8_t s0_idx[2][LB_BATTERY_LEVELS]; /* AP is running */
uint8_t s3_idx[2][LB_BATTERY_LEVELS]; /* AP is sleeping */
/* s5: single color pulse on inhibited power-up */
uint8_t s5_idx;
/* Color palette */
struct rgb_s color[8]; /* 0-3 are Google colors */
};
/* Lightbar command params v2
* crbug.com/467716
*
* lightbar_parms_v1 was too big for i2c, therefore in v2, we split them up by
* logical groups to make it more manageable ( < 120 bytes).
*
* NOTE: Each of these groups must be less than 120 bytes.
*/
struct __ec_todo_packed lightbar_params_v2_timing {
/* Timing */
int32_t google_ramp_up;
int32_t google_ramp_down;
int32_t s3s0_ramp_up;
int32_t s0_tick_delay[2]; /* AC=0/1 */
int32_t s0a_tick_delay[2]; /* AC=0/1 */
int32_t s0s3_ramp_down;
int32_t s3_sleep_for;
int32_t s3_ramp_up;
int32_t s3_ramp_down;
int32_t s5_ramp_up;
int32_t s5_ramp_down;
int32_t tap_tick_delay;
int32_t tap_gate_delay;
int32_t tap_display_time;
};
struct __ec_todo_packed lightbar_params_v2_tap {
/* Tap-for-battery params */
uint8_t tap_pct_red;
uint8_t tap_pct_green;
uint8_t tap_seg_min_on;
uint8_t tap_seg_max_on;
uint8_t tap_seg_osc;
uint8_t tap_idx[3];
};
struct __ec_todo_packed lightbar_params_v2_oscillation {
/* Oscillation */
uint8_t osc_min[2]; /* AC=0/1 */
uint8_t osc_max[2]; /* AC=0/1 */
uint8_t w_ofs[2]; /* AC=0/1 */
};
struct __ec_todo_packed lightbar_params_v2_brightness {
/* Brightness limits based on the backlight and AC. */
uint8_t bright_bl_off_fixed[2]; /* AC=0/1 */
uint8_t bright_bl_on_min[2]; /* AC=0/1 */
uint8_t bright_bl_on_max[2]; /* AC=0/1 */
};
struct __ec_todo_packed lightbar_params_v2_thresholds {
/* Battery level thresholds */
uint8_t battery_threshold[LB_BATTERY_LEVELS - 1];
};
struct __ec_todo_packed lightbar_params_v2_colors {
/* Map [AC][battery_level] to color index */
uint8_t s0_idx[2][LB_BATTERY_LEVELS]; /* AP is running */
uint8_t s3_idx[2][LB_BATTERY_LEVELS]; /* AP is sleeping */
/* s5: single color pulse on inhibited power-up */
uint8_t s5_idx;
/* Color palette */
struct rgb_s color[8]; /* 0-3 are Google colors */
};
/* Lightbyte program. */
#define EC_LB_PROG_LEN 192
struct __ec_todo_unpacked lightbar_program {
uint8_t size;
uint8_t data[EC_LB_PROG_LEN];
};
struct __ec_todo_packed ec_params_lightbar {
uint8_t cmd; /* Command (see enum lightbar_command) */
union {
/*
* The following commands have no args:
*
* dump, off, on, init, get_seq, get_params_v0, get_params_v1,
* version, get_brightness, get_demo, suspend, resume,
* get_params_v2_timing, get_params_v2_tap, get_params_v2_osc,
* get_params_v2_bright, get_params_v2_thlds,
* get_params_v2_colors
*
* Don't use an empty struct, because C++ hates that.
*/
struct __ec_todo_unpacked {
uint8_t num;
} set_brightness, seq, demo;
struct __ec_todo_unpacked {
uint8_t ctrl, reg, value;
} reg;
struct __ec_todo_unpacked {
uint8_t led, red, green, blue;
} set_rgb;
struct __ec_todo_unpacked {
uint8_t led;
} get_rgb;
struct __ec_todo_unpacked {
uint8_t enable;
} manual_suspend_ctrl;
struct lightbar_params_v0 set_params_v0;
struct lightbar_params_v1 set_params_v1;
struct lightbar_params_v2_timing set_v2par_timing;
struct lightbar_params_v2_tap set_v2par_tap;
struct lightbar_params_v2_oscillation set_v2par_osc;
struct lightbar_params_v2_brightness set_v2par_bright;
struct lightbar_params_v2_thresholds set_v2par_thlds;
struct lightbar_params_v2_colors set_v2par_colors;
struct lightbar_program set_program;
};
};
struct __ec_todo_packed ec_response_lightbar {
union {
struct __ec_todo_unpacked {
struct __ec_todo_unpacked {
uint8_t reg;
uint8_t ic0;
uint8_t ic1;
} vals[23];
} dump;
struct __ec_todo_unpacked {
uint8_t num;
} get_seq, get_brightness, get_demo;
struct lightbar_params_v0 get_params_v0;
struct lightbar_params_v1 get_params_v1;
struct lightbar_params_v2_timing get_params_v2_timing;
struct lightbar_params_v2_tap get_params_v2_tap;
struct lightbar_params_v2_oscillation get_params_v2_osc;
struct lightbar_params_v2_brightness get_params_v2_bright;
struct lightbar_params_v2_thresholds get_params_v2_thlds;
struct lightbar_params_v2_colors get_params_v2_colors;
struct __ec_todo_unpacked {
uint32_t num;
uint32_t flags;
} version;
struct __ec_todo_unpacked {
uint8_t red, green, blue;
} get_rgb;
/*
* The following commands have no response:
*
* off, on, init, set_brightness, seq, reg, set_rgb, demo,
* set_params_v0, set_params_v1, set_program,
* manual_suspend_ctrl, suspend, resume, set_v2par_timing,
* set_v2par_tap, set_v2par_osc, set_v2par_bright,
* set_v2par_thlds, set_v2par_colors
*/
};
};
/* Lightbar commands */
enum lightbar_command {
LIGHTBAR_CMD_DUMP = 0,
LIGHTBAR_CMD_OFF = 1,
LIGHTBAR_CMD_ON = 2,
LIGHTBAR_CMD_INIT = 3,
LIGHTBAR_CMD_SET_BRIGHTNESS = 4,
LIGHTBAR_CMD_SEQ = 5,
LIGHTBAR_CMD_REG = 6,
LIGHTBAR_CMD_SET_RGB = 7,
LIGHTBAR_CMD_GET_SEQ = 8,
LIGHTBAR_CMD_DEMO = 9,
LIGHTBAR_CMD_GET_PARAMS_V0 = 10,
LIGHTBAR_CMD_SET_PARAMS_V0 = 11,
LIGHTBAR_CMD_VERSION = 12,
LIGHTBAR_CMD_GET_BRIGHTNESS = 13,
LIGHTBAR_CMD_GET_RGB = 14,
LIGHTBAR_CMD_GET_DEMO = 15,
LIGHTBAR_CMD_GET_PARAMS_V1 = 16,
LIGHTBAR_CMD_SET_PARAMS_V1 = 17,
LIGHTBAR_CMD_SET_PROGRAM = 18,
LIGHTBAR_CMD_MANUAL_SUSPEND_CTRL = 19,
LIGHTBAR_CMD_SUSPEND = 20,
LIGHTBAR_CMD_RESUME = 21,
LIGHTBAR_CMD_GET_PARAMS_V2_TIMING = 22,
LIGHTBAR_CMD_SET_PARAMS_V2_TIMING = 23,
LIGHTBAR_CMD_GET_PARAMS_V2_TAP = 24,
LIGHTBAR_CMD_SET_PARAMS_V2_TAP = 25,
LIGHTBAR_CMD_GET_PARAMS_V2_OSCILLATION = 26,
LIGHTBAR_CMD_SET_PARAMS_V2_OSCILLATION = 27,
LIGHTBAR_CMD_GET_PARAMS_V2_BRIGHTNESS = 28,
LIGHTBAR_CMD_SET_PARAMS_V2_BRIGHTNESS = 29,
LIGHTBAR_CMD_GET_PARAMS_V2_THRESHOLDS = 30,
LIGHTBAR_CMD_SET_PARAMS_V2_THRESHOLDS = 31,
LIGHTBAR_CMD_GET_PARAMS_V2_COLORS = 32,
LIGHTBAR_CMD_SET_PARAMS_V2_COLORS = 33,
LIGHTBAR_NUM_CMDS
};
/*****************************************************************************/
/* LED control commands */
#define EC_CMD_LED_CONTROL 0x0029
enum ec_led_id {
/* LED to indicate battery state of charge */
EC_LED_ID_BATTERY_LED = 0,
/*
* LED to indicate system power state (on or in suspend).
* May be on power button or on C-panel.
*/
EC_LED_ID_POWER_LED,
/* LED on power adapter or its plug */
EC_LED_ID_ADAPTER_LED,
/* LED to indicate left side */
EC_LED_ID_LEFT_LED,
/* LED to indicate right side */
EC_LED_ID_RIGHT_LED,
/* LED to indicate recovery mode with HW_REINIT */
EC_LED_ID_RECOVERY_HW_REINIT_LED,
/* LED to indicate sysrq debug mode. */
EC_LED_ID_SYSRQ_DEBUG_LED,
EC_LED_ID_COUNT
};
/* LED control flags */
#define EC_LED_FLAGS_QUERY (1 << 0) /* Query LED capability only */
#define EC_LED_FLAGS_AUTO (1 << 1) /* Switch LED back to automatic control */
enum ec_led_colors {
EC_LED_COLOR_RED = 0,
EC_LED_COLOR_GREEN,
EC_LED_COLOR_BLUE,
EC_LED_COLOR_YELLOW,
EC_LED_COLOR_WHITE,
EC_LED_COLOR_AMBER,
EC_LED_COLOR_COUNT
};
struct __ec_align1 ec_params_led_control {
uint8_t led_id; /* Which LED to control */
uint8_t flags; /* Control flags */
uint8_t brightness[EC_LED_COLOR_COUNT];
};
struct __ec_align1 ec_response_led_control {
/*
* Available brightness value range.
*
* Range 0 means color channel not present.
* Range 1 means on/off control.
* Other values means the LED is control by PWM.
*/
uint8_t brightness_range[EC_LED_COLOR_COUNT];
};
/*****************************************************************************/
/* Verified boot commands */
/*
* Note: command code 0x29 version 0 was VBOOT_CMD in Link EVT; it may be
* reused for other purposes with version > 0.
*/
/* Verified boot hash command */
#define EC_CMD_VBOOT_HASH 0x002A
struct __ec_align4 ec_params_vboot_hash {
uint8_t cmd; /* enum ec_vboot_hash_cmd */
uint8_t hash_type; /* enum ec_vboot_hash_type */
uint8_t nonce_size; /* Nonce size; may be 0 */
uint8_t reserved0; /* Reserved; set 0 */
uint32_t offset; /* Offset in flash to hash */
uint32_t size; /* Number of bytes to hash */
uint8_t nonce_data[64]; /* Nonce data; ignored if nonce_size=0 */
};
struct __ec_align4 ec_response_vboot_hash {
uint8_t status; /* enum ec_vboot_hash_status */
uint8_t hash_type; /* enum ec_vboot_hash_type */
uint8_t digest_size; /* Size of hash digest in bytes */
uint8_t reserved0; /* Ignore; will be 0 */
uint32_t offset; /* Offset in flash which was hashed */
uint32_t size; /* Number of bytes hashed */
uint8_t hash_digest[64]; /* Hash digest data */
};
enum ec_vboot_hash_cmd {
EC_VBOOT_HASH_GET = 0, /* Get current hash status */
EC_VBOOT_HASH_ABORT = 1, /* Abort calculating current hash */
EC_VBOOT_HASH_START = 2, /* Start computing a new hash */
EC_VBOOT_HASH_RECALC = 3, /* Synchronously compute a new hash */
};
enum ec_vboot_hash_type {
EC_VBOOT_HASH_TYPE_SHA256 = 0, /* SHA-256 */
};
enum ec_vboot_hash_status {
EC_VBOOT_HASH_STATUS_NONE = 0, /* No hash (not started, or aborted) */
EC_VBOOT_HASH_STATUS_DONE = 1, /* Finished computing a hash */
EC_VBOOT_HASH_STATUS_BUSY = 2, /* Busy computing a hash */
};
/*
* Special values for offset for EC_VBOOT_HASH_START and EC_VBOOT_HASH_RECALC.
* If one of these is specified, the EC will automatically update offset and
* size to the correct values for the specified image (RO or RW).
*/
#define EC_VBOOT_HASH_OFFSET_RO 0xfffffffe
#define EC_VBOOT_HASH_OFFSET_ACTIVE 0xfffffffd
#define EC_VBOOT_HASH_OFFSET_UPDATE 0xfffffffc
/* 'RW' is vague if there are multiple RW images; we mean the active one,
* so the old constant is deprecated */
#define EC_VBOOT_HASH_OFFSET_RW EC_VBOOT_HASH_OFFSET_ACTIVE
/*****************************************************************************/
/*
* Motion sense commands. We'll make separate structs for sub-commands with
* different input args, so that we know how much to expect.
*/
#define EC_CMD_MOTION_SENSE_CMD 0x002B
/* Motion sense commands */
enum motionsense_command {
/*
* Dump command returns all motion sensor data including motion sense
* module flags and individual sensor flags.
*/
MOTIONSENSE_CMD_DUMP = 0,
/*
* Info command returns data describing the details of a given sensor,
* including enum motionsensor_type, enum motionsensor_location, and
* enum motionsensor_chip.
*/
MOTIONSENSE_CMD_INFO = 1,
/*
* EC Rate command is a setter/getter command for the EC sampling rate
* in milliseconds.
* It is per sensor, the EC run sample task at the minimum of all
* sensors EC_RATE.
* For sensors without hardware FIFO, EC_RATE should be equals to 1/ODR
* to collect all the sensor samples.
* For sensor with hardware FIFO, EC_RATE is used as the maximal delay
* to process of all motion sensors in milliseconds.
*/
MOTIONSENSE_CMD_EC_RATE = 2,
/*
* Sensor ODR command is a setter/getter command for the output data
* rate of a specific motion sensor in millihertz.
*/
MOTIONSENSE_CMD_SENSOR_ODR = 3,
/*
* Sensor range command is a setter/getter command for the range of
* a specified motion sensor in +/-G's or +/- deg/s.
*/
MOTIONSENSE_CMD_SENSOR_RANGE = 4,
/*
* Setter/getter command for the keyboard wake angle. When the lid
* angle is greater than this value, keyboard wake is disabled in S3,
* and when the lid angle goes less than this value, keyboard wake is
* enabled. Note, the lid angle measurement is an approximate,
* un-calibrated value, hence the wake angle isn't exact.
*/
MOTIONSENSE_CMD_KB_WAKE_ANGLE = 5,
/*
* Returns a single sensor data.
*/
MOTIONSENSE_CMD_DATA = 6,
/*
* Return sensor fifo info.
*/
MOTIONSENSE_CMD_FIFO_INFO = 7,
/*
* Insert a flush element in the fifo and return sensor fifo info.
* The host can use that element to synchronize its operation.
*/
MOTIONSENSE_CMD_FIFO_FLUSH = 8,
/*
* Return a portion of the fifo.
*/
MOTIONSENSE_CMD_FIFO_READ = 9,
/*
* Perform low level calibration.
* On sensors that support it, ask to do offset calibration.
*/
MOTIONSENSE_CMD_PERFORM_CALIB = 10,
/*
* Sensor Offset command is a setter/getter command for the offset
* used for calibration.
* The offsets can be calculated by the host, or via
* PERFORM_CALIB command.
*/
MOTIONSENSE_CMD_SENSOR_OFFSET = 11,
/*
* List available activities for a MOTION sensor.
* Indicates if they are enabled or disabled.
*/
MOTIONSENSE_CMD_LIST_ACTIVITIES = 12,
/*
* Activity management
* Enable/Disable activity recognition.
*/
MOTIONSENSE_CMD_SET_ACTIVITY = 13,
/*
* Lid Angle
*/
MOTIONSENSE_CMD_LID_ANGLE = 14,
/*
* Allow the FIFO to trigger interrupt via MKBP events.
* By default the FIFO does not send interrupt to process the FIFO
* until the AP is ready or it is coming from a wakeup sensor.
*/
MOTIONSENSE_CMD_FIFO_INT_ENABLE = 15,
/*
* Spoof the readings of the sensors. The spoofed readings can be set
* to arbitrary values, or will lock to the last read actual values.
*/
MOTIONSENSE_CMD_SPOOF = 16,
/* Number of motionsense sub-commands. */
MOTIONSENSE_NUM_CMDS
};
/* List of motion sensor types. */
enum motionsensor_type {
MOTIONSENSE_TYPE_ACCEL = 0,
MOTIONSENSE_TYPE_GYRO = 1,
MOTIONSENSE_TYPE_MAG = 2,
MOTIONSENSE_TYPE_PROX = 3,
MOTIONSENSE_TYPE_LIGHT = 4,
MOTIONSENSE_TYPE_ACTIVITY = 5,
MOTIONSENSE_TYPE_BARO = 6,
MOTIONSENSE_TYPE_SYNC = 7,
MOTIONSENSE_TYPE_MAX,
};
/* List of motion sensor locations. */
enum motionsensor_location {
MOTIONSENSE_LOC_BASE = 0,
MOTIONSENSE_LOC_LID = 1,
MOTIONSENSE_LOC_CAMERA = 2,
MOTIONSENSE_LOC_MAX,
};
/* List of motion sensor chips. */
enum motionsensor_chip {
MOTIONSENSE_CHIP_KXCJ9 = 0,
MOTIONSENSE_CHIP_LSM6DS0 = 1,
MOTIONSENSE_CHIP_BMI160 = 2,
MOTIONSENSE_CHIP_SI1141 = 3,
MOTIONSENSE_CHIP_SI1142 = 4,
MOTIONSENSE_CHIP_SI1143 = 5,
MOTIONSENSE_CHIP_KX022 = 6,
MOTIONSENSE_CHIP_L3GD20H = 7,
MOTIONSENSE_CHIP_BMA255 = 8,
MOTIONSENSE_CHIP_BMP280 = 9,
MOTIONSENSE_CHIP_OPT3001 = 10,
MOTIONSENSE_CHIP_BH1730 = 11,
MOTIONSENSE_CHIP_GPIO = 12,
};
/* List of orientation positions */
enum motionsensor_orientation {
MOTIONSENSE_ORIENTATION_LANDSCAPE = 0,
MOTIONSENSE_ORIENTATION_PORTRAIT = 1,
MOTIONSENSE_ORIENTATION_UPSIDE_DOWN_PORTRAIT = 2,
MOTIONSENSE_ORIENTATION_UPSIDE_DOWN_LANDSCAPE = 3,
MOTIONSENSE_ORIENTATION_UNKNOWN = 4,
};
struct __ec_todo_packed ec_response_motion_sensor_data {
/* Flags for each sensor. */
uint8_t flags;
/* sensor number the data comes from */
uint8_t sensor_num;
/* Each sensor is up to 3-axis. */
union {
int16_t data[3];
struct __ec_todo_packed {
uint16_t reserved;
uint32_t timestamp;
};
struct __ec_todo_unpacked {
uint8_t activity; /* motionsensor_activity */
uint8_t state;
int16_t add_info[2];
};
};
};
/* Note: used in ec_response_get_next_data */
struct __ec_todo_packed ec_response_motion_sense_fifo_info {
/* Size of the fifo */
uint16_t size;
/* Amount of space used in the fifo */
uint16_t count;
/* Timestamp recorded in us */
uint32_t timestamp;
/* Total amount of vector lost */
uint16_t total_lost;
/* Lost events since the last fifo_info, per sensors */
uint16_t lost[0];
};
struct __ec_todo_packed ec_response_motion_sense_fifo_data {
uint32_t number_data;
struct ec_response_motion_sensor_data data[0];
};
/* List supported activity recognition */
enum motionsensor_activity {
MOTIONSENSE_ACTIVITY_RESERVED = 0,
MOTIONSENSE_ACTIVITY_SIG_MOTION = 1,
MOTIONSENSE_ACTIVITY_DOUBLE_TAP = 2,
MOTIONSENSE_ACTIVITY_ORIENTATION = 3,
};
struct __ec_todo_unpacked ec_motion_sense_activity {
uint8_t sensor_num;
uint8_t activity; /* one of enum motionsensor_activity */
uint8_t enable; /* 1: enable, 0: disable */
uint8_t reserved;
uint16_t parameters[3]; /* activity dependent parameters */
};
/* Module flag masks used for the dump sub-command. */
#define MOTIONSENSE_MODULE_FLAG_ACTIVE (1<<0)
/* Sensor flag masks used for the dump sub-command. */
#define MOTIONSENSE_SENSOR_FLAG_PRESENT (1<<0)
/*
* Flush entry for synchronization.
* data contains time stamp
*/
#define MOTIONSENSE_SENSOR_FLAG_FLUSH (1<<0)
#define MOTIONSENSE_SENSOR_FLAG_TIMESTAMP (1<<1)
#define MOTIONSENSE_SENSOR_FLAG_WAKEUP (1<<2)
#define MOTIONSENSE_SENSOR_FLAG_TABLET_MODE (1<<3)
/*
* Send this value for the data element to only perform a read. If you
* send any other value, the EC will interpret it as data to set and will
* return the actual value set.
*/
#define EC_MOTION_SENSE_NO_VALUE -1
#define EC_MOTION_SENSE_INVALID_CALIB_TEMP 0x8000
/* MOTIONSENSE_CMD_SENSOR_OFFSET subcommand flag */
/* Set Calibration information */
#define MOTION_SENSE_SET_OFFSET 1
#define LID_ANGLE_UNRELIABLE 500
enum motionsense_spoof_mode {
/* Disable spoof mode. */
MOTIONSENSE_SPOOF_MODE_DISABLE = 0,
/* Enable spoof mode, but use provided component values. */
MOTIONSENSE_SPOOF_MODE_CUSTOM,
/* Enable spoof mode, but use the current sensor values. */
MOTIONSENSE_SPOOF_MODE_LOCK_CURRENT,
/* Query the current spoof mode status for the sensor. */
MOTIONSENSE_SPOOF_MODE_QUERY,
};
struct __ec_todo_packed ec_params_motion_sense {
uint8_t cmd;
union {
/* Used for MOTIONSENSE_CMD_DUMP */
struct __ec_todo_unpacked {
/*
* Maximal number of sensor the host is expecting.
* 0 means the host is only interested in the number
* of sensors controlled by the EC.
*/
uint8_t max_sensor_count;
} dump;
/*
* Used for MOTIONSENSE_CMD_KB_WAKE_ANGLE.
*/
struct __ec_todo_unpacked {
/* Data to set or EC_MOTION_SENSE_NO_VALUE to read.
* kb_wake_angle: angle to wakup AP.
*/
int16_t data;
} kb_wake_angle;
/* Used for MOTIONSENSE_CMD_INFO, MOTIONSENSE_CMD_DATA
* and MOTIONSENSE_CMD_PERFORM_CALIB. */
struct __ec_todo_unpacked {
uint8_t sensor_num;
} info, info_3, data, fifo_flush, perform_calib,
list_activities;
/*
* Used for MOTIONSENSE_CMD_EC_RATE, MOTIONSENSE_CMD_SENSOR_ODR
* and MOTIONSENSE_CMD_SENSOR_RANGE.
*/
struct __ec_todo_unpacked {
uint8_t sensor_num;
/* Rounding flag, true for round-up, false for down. */
uint8_t roundup;
uint16_t reserved;
/* Data to set or EC_MOTION_SENSE_NO_VALUE to read. */
int32_t data;
} ec_rate, sensor_odr, sensor_range;
/* Used for MOTIONSENSE_CMD_SENSOR_OFFSET */
struct __ec_todo_packed {
uint8_t sensor_num;
/*
* bit 0: If set (MOTION_SENSE_SET_OFFSET), set
* the calibration information in the EC.
* If unset, just retrieve calibration information.
*/
uint16_t flags;
/*
* Temperature at calibration, in units of 0.01 C
* 0x8000: invalid / unknown.
* 0x0: 0C
* 0x7fff: +327.67C
*/
int16_t temp;
/*
* Offset for calibration.
* Unit:
* Accelerometer: 1/1024 g
* Gyro: 1/1024 deg/s
* Compass: 1/16 uT
*/
int16_t offset[3];
} sensor_offset;
/* Used for MOTIONSENSE_CMD_FIFO_INFO */
/* (no params) */
/* Used for MOTIONSENSE_CMD_FIFO_READ */
struct __ec_todo_unpacked {
/*
* Number of expected vector to return.
* EC may return less or 0 if none available.
*/
uint32_t max_data_vector;
} fifo_read;
struct ec_motion_sense_activity set_activity;
/* Used for MOTIONSENSE_CMD_LID_ANGLE */
/* (no params) */
/* Used for MOTIONSENSE_CMD_FIFO_INT_ENABLE */
struct __ec_todo_unpacked {
/*
* 1: enable, 0 disable fifo,
* EC_MOTION_SENSE_NO_VALUE return value.
*/
int8_t enable;
} fifo_int_enable;
/* Used for MOTIONSENSE_CMD_SPOOF */
struct __ec_todo_packed {
uint8_t sensor_id;
/* See enum motionsense_spoof_mode. */
uint8_t spoof_enable;
/* Ignored, used for alignment. */
uint8_t reserved;
/* Individual component values to spoof. */
int16_t components[3];
} spoof;
};
};
struct __ec_todo_packed ec_response_motion_sense {
union {
/* Used for MOTIONSENSE_CMD_DUMP */
struct __ec_todo_unpacked {
/* Flags representing the motion sensor module. */
uint8_t module_flags;
/* Number of sensors managed directly by the EC */
uint8_t sensor_count;
/*
* sensor data is truncated if response_max is too small
* for holding all the data.
*/
struct ec_response_motion_sensor_data sensor[0];
} dump;
/* Used for MOTIONSENSE_CMD_INFO. */
struct __ec_todo_unpacked {
/* Should be element of enum motionsensor_type. */
uint8_t type;
/* Should be element of enum motionsensor_location. */
uint8_t location;
/* Should be element of enum motionsensor_chip. */
uint8_t chip;
} info;
/* Used for MOTIONSENSE_CMD_INFO version 3 */
struct __ec_todo_unpacked {
/* Should be element of enum motionsensor_type. */
uint8_t type;
/* Should be element of enum motionsensor_location. */
uint8_t location;
/* Should be element of enum motionsensor_chip. */
uint8_t chip;
/* Minimum sensor sampling frequency */
uint32_t min_frequency;
/* Maximum sensor sampling frequency */
uint32_t max_frequency;
/* Max number of sensor events that could be in fifo */
uint32_t fifo_max_event_count;
} info_3;
/* Used for MOTIONSENSE_CMD_DATA */
struct ec_response_motion_sensor_data data;
/*
* Used for MOTIONSENSE_CMD_EC_RATE, MOTIONSENSE_CMD_SENSOR_ODR,
* MOTIONSENSE_CMD_SENSOR_RANGE,
* MOTIONSENSE_CMD_KB_WAKE_ANGLE,
* MOTIONSENSE_CMD_FIFO_INT_ENABLE and
* MOTIONSENSE_CMD_SPOOF.
*/
struct __ec_todo_unpacked {
/* Current value of the parameter queried. */
int32_t ret;
} ec_rate, sensor_odr, sensor_range, kb_wake_angle,
fifo_int_enable, spoof;
/* Used for MOTIONSENSE_CMD_SENSOR_OFFSET */
struct __ec_todo_unpacked {
int16_t temp;
int16_t offset[3];
} sensor_offset, perform_calib;
struct ec_response_motion_sense_fifo_info fifo_info, fifo_flush;
struct ec_response_motion_sense_fifo_data fifo_read;
struct __ec_todo_packed {
uint16_t reserved;
uint32_t enabled;
uint32_t disabled;
} list_activities;
/* No params for set activity */
/* Used for MOTIONSENSE_CMD_LID_ANGLE */
struct __ec_todo_unpacked {
/*
* Angle between 0 and 360 degree if available,
* LID_ANGLE_UNRELIABLE otherwise.
*/
uint16_t value;
} lid_angle;
};
};
/*****************************************************************************/
/* Force lid open command */
/* Make lid event always open */
#define EC_CMD_FORCE_LID_OPEN 0x002C
struct __ec_align1 ec_params_force_lid_open {
uint8_t enabled;
};
/*****************************************************************************/
/* Configure the behavior of the power button */
#define EC_CMD_CONFIG_POWER_BUTTON 0x002D
enum ec_config_power_button_flags {
/* Enable/Disable power button pulses for x86 devices */
EC_POWER_BUTTON_ENABLE_PULSE = (1 << 0),
};
struct __ec_align1 ec_params_config_power_button {
/* See enum ec_config_power_button_flags */
uint8_t flags;
};
/*****************************************************************************/
/* USB charging control commands */
/* Set USB port charging mode */
#define EC_CMD_USB_CHARGE_SET_MODE 0x0030
struct __ec_align1 ec_params_usb_charge_set_mode {
uint8_t usb_port_id;
uint8_t mode;
};
/*****************************************************************************/
/* Persistent storage for host */
/* Maximum bytes that can be read/written in a single command */
#define EC_PSTORE_SIZE_MAX 64
/* Get persistent storage info */
#define EC_CMD_PSTORE_INFO 0x0040
struct __ec_align4 ec_response_pstore_info {
/* Persistent storage size, in bytes */
uint32_t pstore_size;
/* Access size; read/write offset and size must be a multiple of this */
uint32_t access_size;
};
/*
* Read persistent storage
*
* Response is params.size bytes of data.
*/
#define EC_CMD_PSTORE_READ 0x0041
struct __ec_align4 ec_params_pstore_read {
uint32_t offset; /* Byte offset to read */
uint32_t size; /* Size to read in bytes */
};
/* Write persistent storage */
#define EC_CMD_PSTORE_WRITE 0x0042
struct __ec_align4 ec_params_pstore_write {
uint32_t offset; /* Byte offset to write */
uint32_t size; /* Size to write in bytes */
uint8_t data[EC_PSTORE_SIZE_MAX];
};
/*****************************************************************************/
/* Real-time clock */
/* RTC params and response structures */
struct __ec_align4 ec_params_rtc {
uint32_t time;
};
struct __ec_align4 ec_response_rtc {
uint32_t time;
};
/* These use ec_response_rtc */
#define EC_CMD_RTC_GET_VALUE 0x0044
#define EC_CMD_RTC_GET_ALARM 0x0045
/* These all use ec_params_rtc */
#define EC_CMD_RTC_SET_VALUE 0x0046
#define EC_CMD_RTC_SET_ALARM 0x0047
/* Pass as time param to SET_ALARM to clear the current alarm */
#define EC_RTC_ALARM_CLEAR 0
/*****************************************************************************/
/* Port80 log access */
/* Maximum entries that can be read/written in a single command */
#define EC_PORT80_SIZE_MAX 32
/* Get last port80 code from previous boot */
#define EC_CMD_PORT80_LAST_BOOT 0x0048
#define EC_CMD_PORT80_READ 0x0048
enum ec_port80_subcmd {
EC_PORT80_GET_INFO = 0,
EC_PORT80_READ_BUFFER,
};
struct __ec_todo_packed ec_params_port80_read {
uint16_t subcmd;
union {
struct __ec_todo_unpacked {
uint32_t offset;
uint32_t num_entries;
} read_buffer;
};
};
struct __ec_todo_packed ec_response_port80_read {
union {
struct __ec_todo_unpacked {
uint32_t writes;
uint32_t history_size;
uint32_t last_boot;
} get_info;
struct __ec_todo_unpacked {
uint16_t codes[EC_PORT80_SIZE_MAX];
} data;
};
};
struct __ec_align2 ec_response_port80_last_boot {
uint16_t code;
};
/*****************************************************************************/
/* 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_align_size1 ec_response_vstore_info {
/* Indicates which slots are locked */
uint32_t slot_locked;
/* Total number of slots available */
uint8_t slot_count;
};
/*
* Read temporary secure storage
*
* Response is EC_VSTORE_SLOT_SIZE bytes of data.
*/
#define EC_CMD_VSTORE_READ 0x004A
struct __ec_align1 ec_params_vstore_read {
uint8_t slot; /* Slot to read from */
};
struct __ec_align1 ec_response_vstore_read {
uint8_t data[EC_VSTORE_SLOT_SIZE];
};
/*
* Write temporary secure storage and lock it.
*/
#define EC_CMD_VSTORE_WRITE 0x004B
struct __ec_align1 ec_params_vstore_write {
uint8_t slot; /* Slot to write to */
uint8_t data[EC_VSTORE_SLOT_SIZE];
};
/*****************************************************************************/
/* Thermal engine commands. Note that there are two implementations. We'll
* reuse the command number, but the data and behavior is incompatible.
* Version 0 is what originally shipped on Link.
* Version 1 separates the CPU thermal limits from the fan control.
*/
#define EC_CMD_THERMAL_SET_THRESHOLD 0x0050
#define EC_CMD_THERMAL_GET_THRESHOLD 0x0051
/* The version 0 structs are opaque. You have to know what they are for
* the get/set commands to make any sense.
*/
/* Version 0 - set */
struct __ec_align2 ec_params_thermal_set_threshold {
uint8_t sensor_type;
uint8_t threshold_id;
uint16_t value;
};
/* Version 0 - get */
struct __ec_align1 ec_params_thermal_get_threshold {
uint8_t sensor_type;
uint8_t threshold_id;
};
struct __ec_align2 ec_response_thermal_get_threshold {
uint16_t value;
};
/* The version 1 structs are visible. */
enum ec_temp_thresholds {
EC_TEMP_THRESH_WARN = 0,
EC_TEMP_THRESH_HIGH,
EC_TEMP_THRESH_HALT,
EC_TEMP_THRESH_COUNT
};
/*
* Thermal configuration for one temperature sensor. Temps are in degrees K.
* Zero values will be silently ignored by the thermal task.
*
* Set 'temp_host' value allows thermal task to trigger some event with 1 degree
* hysteresis.
* For example,
* temp_host[EC_TEMP_THRESH_HIGH] = 300 K
* temp_host_release[EC_TEMP_THRESH_HIGH] = 0 K
* EC will throttle ap when temperature >= 301 K, and release throttling when
* temperature <= 299 K.
*
* Set 'temp_host_release' value allows thermal task has a custom hysteresis.
* For example,
* temp_host[EC_TEMP_THRESH_HIGH] = 300 K
* temp_host_release[EC_TEMP_THRESH_HIGH] = 295 K
* EC will throttle ap when temperature >= 301 K, and release throttling when
* temperature <= 294 K.
*
* Note that this structure is a sub-structure of
* ec_params_thermal_set_threshold_v1, but maintains its alignment there.
*/
struct __ec_align4 ec_thermal_config {
uint32_t temp_host[EC_TEMP_THRESH_COUNT]; /* levels of hotness */
uint32_t temp_host_release[EC_TEMP_THRESH_COUNT]; /* release levels */
uint32_t temp_fan_off; /* no active cooling needed */
uint32_t temp_fan_max; /* max active cooling needed */
};
/* Version 1 - get config for one sensor. */
struct __ec_align4 ec_params_thermal_get_threshold_v1 {
uint32_t sensor_num;
};
/* This returns a struct ec_thermal_config */
/* Version 1 - set config for one sensor.
* Use read-modify-write for best results! */
struct __ec_align4 ec_params_thermal_set_threshold_v1 {
uint32_t sensor_num;
struct ec_thermal_config cfg;
};
/* This returns no data */
/****************************************************************************/
/* Toggle automatic fan control */
#define EC_CMD_THERMAL_AUTO_FAN_CTRL 0x0052
/* Version 1 of input params */
struct __ec_align1 ec_params_auto_fan_ctrl_v1 {
uint8_t fan_idx;
};
/* Get/Set TMP006 calibration data */
#define EC_CMD_TMP006_GET_CALIBRATION 0x0053
#define EC_CMD_TMP006_SET_CALIBRATION 0x0054
/*
* The original TMP006 calibration only needed four params, but now we need
* more. Since the algorithm is nothing but magic numbers anyway, we'll leave
* the params opaque. The v1 "get" response will include the algorithm number
* and how many params it requires. That way we can change the EC code without
* needing to update this file. We can also use a different algorithm on each
* sensor.
*/
/* This is the same struct for both v0 and v1. */
struct __ec_align1 ec_params_tmp006_get_calibration {
uint8_t index;
};
/* Version 0 */
struct __ec_align4 ec_response_tmp006_get_calibration_v0 {
float s0;
float b0;
float b1;
float b2;
};
struct __ec_align4 ec_params_tmp006_set_calibration_v0 {
uint8_t index;
uint8_t reserved[3];
float s0;
float b0;
float b1;
float b2;
};
/* Version 1 */
struct __ec_align4 ec_response_tmp006_get_calibration_v1 {
uint8_t algorithm;
uint8_t num_params;
uint8_t reserved[2];
float val[0];
};
struct __ec_align4 ec_params_tmp006_set_calibration_v1 {
uint8_t index;
uint8_t algorithm;
uint8_t num_params;
uint8_t reserved;
float val[0];
};
/* Read raw TMP006 data */
#define EC_CMD_TMP006_GET_RAW 0x0055
struct __ec_align1 ec_params_tmp006_get_raw {
uint8_t index;
};
struct __ec_align4 ec_response_tmp006_get_raw {
int32_t t; /* In 1/100 K */
int32_t v; /* In nV */
};
/*****************************************************************************/
/* MKBP - Matrix KeyBoard Protocol */
/*
* Read key state
*
* Returns raw data for keyboard cols; see ec_response_mkbp_info.cols for
* expected response size.
*
* NOTE: This has been superseded by EC_CMD_MKBP_GET_NEXT_EVENT. If you wish
* to obtain the instantaneous state, use EC_CMD_MKBP_INFO with the type
* EC_MKBP_INFO_CURRENT and event EC_MKBP_EVENT_KEY_MATRIX.
*/
#define EC_CMD_MKBP_STATE 0x0060
/*
* Provide information about various MKBP things. See enum ec_mkbp_info_type.
*/
#define EC_CMD_MKBP_INFO 0x0061
struct __ec_align_size1 ec_response_mkbp_info {
uint32_t rows;
uint32_t cols;
/* Formerly "switches", which was 0. */
uint8_t reserved;
};
struct __ec_align1 ec_params_mkbp_info {
uint8_t info_type;
uint8_t event_type;
};
enum ec_mkbp_info_type {
/*
* Info about the keyboard matrix: number of rows and columns.
*
* Returns struct ec_response_mkbp_info.
*/
EC_MKBP_INFO_KBD = 0,
/*
* For buttons and switches, info about which specifically are
* supported. event_type must be set to one of the values in enum
* ec_mkbp_event.
*
* For EC_MKBP_EVENT_BUTTON and EC_MKBP_EVENT_SWITCH, returns a 4 byte
* bitmask indicating which buttons or switches are present. See the
* bit inidices below.
*/
EC_MKBP_INFO_SUPPORTED = 1,
/*
* Instantaneous state of buttons and switches.
*
* event_type must be set to one of the values in enum ec_mkbp_event.
*
* For EC_MKBP_EVENT_KEY_MATRIX, returns uint8_t key_matrix[13]
* indicating the current state of the keyboard matrix.
*
* For EC_MKBP_EVENT_HOST_EVENT, return uint32_t host_event, the raw
* event state.
*
* For EC_MKBP_EVENT_BUTTON, returns uint32_t buttons, indicating the
* state of supported buttons.
*
* For EC_MKBP_EVENT_SWITCH, returns uint32_t switches, indicating the
* state of supported switches.
*/
EC_MKBP_INFO_CURRENT = 2,
};
/* Simulate key press */
#define EC_CMD_MKBP_SIMULATE_KEY 0x0062
struct __ec_align1 ec_params_mkbp_simulate_key {
uint8_t col;
uint8_t row;
uint8_t pressed;
};
/* Configure keyboard scanning */
#define EC_CMD_MKBP_SET_CONFIG 0x0064
#define EC_CMD_MKBP_GET_CONFIG 0x0065
/* flags */
enum mkbp_config_flags {
EC_MKBP_FLAGS_ENABLE = 1, /* Enable keyboard scanning */
};
enum mkbp_config_valid {
EC_MKBP_VALID_SCAN_PERIOD = 1 << 0,
EC_MKBP_VALID_POLL_TIMEOUT = 1 << 1,
EC_MKBP_VALID_MIN_POST_SCAN_DELAY = 1 << 3,
EC_MKBP_VALID_OUTPUT_SETTLE = 1 << 4,
EC_MKBP_VALID_DEBOUNCE_DOWN = 1 << 5,
EC_MKBP_VALID_DEBOUNCE_UP = 1 << 6,
EC_MKBP_VALID_FIFO_MAX_DEPTH = 1 << 7,
};
/*
* Configuration for our key scanning algorithm.
*
* Note that this is used as a sub-structure of
* ec_{params/response}_mkbp_get_config.
*/
struct __ec_align_size1 ec_mkbp_config {
uint32_t valid_mask; /* valid fields */
uint8_t flags; /* some flags (enum mkbp_config_flags) */
uint8_t valid_flags; /* which flags are valid */
uint16_t scan_period_us; /* period between start of scans */
/* revert to interrupt mode after no activity for this long */
uint32_t poll_timeout_us;
/*
* minimum post-scan relax time. Once we finish a scan we check
* the time until we are due to start the next one. If this time is
* shorter this field, we use this instead.
*/
uint16_t min_post_scan_delay_us;
/* delay between setting up output and waiting for it to settle */
uint16_t output_settle_us;
uint16_t debounce_down_us; /* time for debounce on key down */
uint16_t debounce_up_us; /* time for debounce on key up */
/* maximum depth to allow for fifo (0 = no keyscan output) */
uint8_t fifo_max_depth;
};
struct __ec_align_size1 ec_params_mkbp_set_config {
struct ec_mkbp_config config;
};
struct __ec_align_size1 ec_response_mkbp_get_config {
struct ec_mkbp_config config;
};
/* Run the key scan emulation */
#define EC_CMD_KEYSCAN_SEQ_CTRL 0x0066
enum ec_keyscan_seq_cmd {
EC_KEYSCAN_SEQ_STATUS = 0, /* Get status information */
EC_KEYSCAN_SEQ_CLEAR = 1, /* Clear sequence */
EC_KEYSCAN_SEQ_ADD = 2, /* Add item to sequence */
EC_KEYSCAN_SEQ_START = 3, /* Start running sequence */
EC_KEYSCAN_SEQ_COLLECT = 4, /* Collect sequence summary data */
};
enum ec_collect_flags {
/*
* Indicates this scan was processed by the EC. Due to timing, some
* scans may be skipped.
*/
EC_KEYSCAN_SEQ_FLAG_DONE = 1 << 0,
};
struct __ec_align1 ec_collect_item {
uint8_t flags; /* some flags (enum ec_collect_flags) */
};
struct __ec_todo_packed ec_params_keyscan_seq_ctrl {
uint8_t cmd; /* Command to send (enum ec_keyscan_seq_cmd) */
union {
struct __ec_align1 {
uint8_t active; /* still active */
uint8_t num_items; /* number of items */
/* Current item being presented */
uint8_t cur_item;
} status;
struct __ec_todo_unpacked {
/*
* Absolute time for this scan, measured from the
* start of the sequence.
*/
uint32_t time_us;
uint8_t scan[0]; /* keyscan data */
} add;
struct __ec_align1 {
uint8_t start_item; /* First item to return */
uint8_t num_items; /* Number of items to return */
} collect;
};
};
struct __ec_todo_packed ec_result_keyscan_seq_ctrl {
union {
struct __ec_todo_unpacked {
uint8_t num_items; /* Number of items */
/* Data for each item */
struct ec_collect_item item[0];
} collect;
};
};
/*
* Get the next pending MKBP event.
*
* Returns EC_RES_UNAVAILABLE if there is no event pending.
*/
#define EC_CMD_GET_NEXT_EVENT 0x0067
enum ec_mkbp_event {
/* Keyboard matrix changed. The event data is the new matrix state. */
EC_MKBP_EVENT_KEY_MATRIX = 0,
/* New host event. The event data is 4 bytes of host event flags. */
EC_MKBP_EVENT_HOST_EVENT = 1,
/* New Sensor FIFO data. The event data is fifo_info structure. */
EC_MKBP_EVENT_SENSOR_FIFO = 2,
/* The state of the non-matrixed buttons have changed. */
EC_MKBP_EVENT_BUTTON = 3,
/* The state of the switches have changed. */
EC_MKBP_EVENT_SWITCH = 4,
/* New Fingerprint sensor event, the event data is fp_events bitmap. */
EC_MKBP_EVENT_FINGERPRINT = 5,
/*
* Sysrq event: send emulated sysrq. The event data is sysrq,
* corresponding to the key to be pressed.
*/
EC_MKBP_EVENT_SYSRQ = 6,
/*
* New 64-bit host event.
* The event data is 8 bytes of host event flags.
*/
EC_MKBP_EVENT_HOST_EVENT64 = 7,
/* Number of MKBP events */
EC_MKBP_EVENT_COUNT,
};
union __ec_align_offset1 ec_response_get_next_data {
uint8_t key_matrix[13];
/* Unaligned */
uint32_t host_event;
uint64_t host_event64;
struct __ec_todo_unpacked {
/* For aligning the fifo_info */
uint8_t reserved[3];
struct ec_response_motion_sense_fifo_info info;
} sensor_fifo;
uint32_t buttons;
uint32_t switches;
uint32_t fp_events;
uint32_t sysrq;
};
struct __ec_align1 ec_response_get_next_event {
uint8_t event_type;
/* Followed by event data if any */
union ec_response_get_next_data data;
};
/* Bit indices for buttons and switches.*/
/* Buttons */
#define EC_MKBP_POWER_BUTTON 0
#define EC_MKBP_VOL_UP 1
#define EC_MKBP_VOL_DOWN 2
#define EC_MKBP_RECOVERY 3
/* Switches */
#define EC_MKBP_LID_OPEN 0
#define EC_MKBP_TABLET_MODE 1
/* Run keyboard factory test scanning */
#define EC_CMD_KEYBOARD_FACTORY_TEST 0x0068
struct __ec_align2 ec_response_keyboard_factory_test {
uint16_t shorted; /* Keyboard pins are shorted */
};
/* Fingerprint events in 'fp_events' for EC_MKBP_EVENT_FINGERPRINT */
#define EC_MKBP_FP_RAW_EVENT(fp_events) ((fp_events) & 0x00FFFFFF)
#define EC_MKBP_FP_FINGER_DOWN (1 << 29)
#define EC_MKBP_FP_FINGER_UP (1 << 30)
#define EC_MKBP_FP_IMAGE_READY (1 << 31)
/*****************************************************************************/
/* Temperature sensor commands */
/* Read temperature sensor info */
#define EC_CMD_TEMP_SENSOR_GET_INFO 0x0070
struct __ec_align1 ec_params_temp_sensor_get_info {
uint8_t id;
};
struct __ec_align1 ec_response_temp_sensor_get_info {
char sensor_name[32];
uint8_t sensor_type;
};
/*****************************************************************************/
/*
* Note: host commands 0x80 - 0x87 are reserved to avoid conflict with ACPI
* commands accidentally sent to the wrong interface. See the ACPI section
* below.
*/
/*****************************************************************************/
/* Host event commands */
/* Obsolete. New implementation should use EC_CMD_HOST_EVENT instead */
/*
* Host event mask params and response structures, shared by all of the host
* event commands below.
*/
struct __ec_align4 ec_params_host_event_mask {
uint32_t mask;
};
struct __ec_align4 ec_response_host_event_mask {
uint32_t mask;
};
/* These all use ec_response_host_event_mask */
#define EC_CMD_HOST_EVENT_GET_B 0x0087
#define EC_CMD_HOST_EVENT_GET_SMI_MASK 0x0088
#define EC_CMD_HOST_EVENT_GET_SCI_MASK 0x0089
#define EC_CMD_HOST_EVENT_GET_WAKE_MASK 0x008D
/* These all use ec_params_host_event_mask */
#define EC_CMD_HOST_EVENT_SET_SMI_MASK 0x008A
#define EC_CMD_HOST_EVENT_SET_SCI_MASK 0x008B
#define EC_CMD_HOST_EVENT_CLEAR 0x008C
#define EC_CMD_HOST_EVENT_SET_WAKE_MASK 0x008E
#define EC_CMD_HOST_EVENT_CLEAR_B 0x008F
/*
* Unified host event programming interface - Should be used by newer versions
* of BIOS/OS to program host events and masks
*/
struct __ec_align4 ec_params_host_event {
/* Action requested by host - one of enum ec_host_event_action. */
uint8_t action;
/*
* Mask type that the host requested the action on - one of
* enum ec_host_event_mask_type.
*/
uint8_t mask_type;
/* Set to 0, ignore on read */
uint16_t reserved;
/* Value to be used in case of set operations. */
uint64_t value;
};
/*
* Response structure returned by EC_CMD_HOST_EVENT.
* Update the value on a GET request. Set to 0 on GET/CLEAR
*/
struct __ec_align4 ec_response_host_event {
/* Mask value in case of get operation */
uint64_t value;
};
enum ec_host_event_action {
/*
* params.value is ignored. Value of mask_type populated
* in response.value
*/
EC_HOST_EVENT_GET,
/* Bits in params.value are set */
EC_HOST_EVENT_SET,
/* Bits in params.value are cleared */
EC_HOST_EVENT_CLEAR,
};
enum ec_host_event_mask_type {
/* Main host event copy */
EC_HOST_EVENT_MAIN,
/* Copy B of host events */
EC_HOST_EVENT_B,
/* SCI Mask */
EC_HOST_EVENT_SCI_MASK,
/* SMI Mask */
EC_HOST_EVENT_SMI_MASK,
/* Mask of events that should be always reported in hostevents */
EC_HOST_EVENT_ALWAYS_REPORT_MASK,
/* Active wake mask */
EC_HOST_EVENT_ACTIVE_WAKE_MASK,
/* Lazy wake mask for S0ix */
EC_HOST_EVENT_LAZY_WAKE_MASK_S0IX,
/* Lazy wake mask for S3 */
EC_HOST_EVENT_LAZY_WAKE_MASK_S3,
/* Lazy wake mask for S5 */
EC_HOST_EVENT_LAZY_WAKE_MASK_S5,
};
#define EC_CMD_HOST_EVENT 0x00A4
/*****************************************************************************/
/* Switch commands */
/* Enable/disable LCD backlight */
#define EC_CMD_SWITCH_ENABLE_BKLIGHT 0x0090
struct __ec_align1 ec_params_switch_enable_backlight {
uint8_t enabled;
};
/* Enable/disable WLAN/Bluetooth */
#define EC_CMD_SWITCH_ENABLE_WIRELESS 0x0091
#define EC_VER_SWITCH_ENABLE_WIRELESS 1
/* Version 0 params; no response */
struct __ec_align1 ec_params_switch_enable_wireless_v0 {
uint8_t enabled;
};
/* Version 1 params */
struct __ec_align1 ec_params_switch_enable_wireless_v1 {
/* Flags to enable now */
uint8_t now_flags;
/* Which flags to copy from now_flags */
uint8_t now_mask;
/*
* Flags to leave enabled in S3, if they're on at the S0->S3
* transition. (Other flags will be disabled by the S0->S3
* transition.)
*/
uint8_t suspend_flags;
/* Which flags to copy from suspend_flags */
uint8_t suspend_mask;
};
/* Version 1 response */
struct __ec_align1 ec_response_switch_enable_wireless_v1 {
/* Flags to enable now */
uint8_t now_flags;
/* Flags to leave enabled in S3 */
uint8_t suspend_flags;
};
/*****************************************************************************/
/* GPIO commands. Only available on EC if write protect has been disabled. */
/* Set GPIO output value */
#define EC_CMD_GPIO_SET 0x0092
struct __ec_align1 ec_params_gpio_set {
char name[32];
uint8_t val;
};
/* Get GPIO value */
#define EC_CMD_GPIO_GET 0x0093
/* Version 0 of input params and response */
struct __ec_align1 ec_params_gpio_get {
char name[32];
};
struct __ec_align1 ec_response_gpio_get {
uint8_t val;
};
/* Version 1 of input params and response */
struct __ec_align1 ec_params_gpio_get_v1 {
uint8_t subcmd;
union {
struct __ec_align1 {
char name[32];
} get_value_by_name;
struct __ec_align1 {
uint8_t index;
} get_info;
};
};
struct __ec_todo_packed ec_response_gpio_get_v1 {
union {
struct __ec_align1 {
uint8_t val;
} get_value_by_name, get_count;
struct __ec_todo_unpacked {
uint8_t val;
char name[32];
uint32_t flags;
} get_info;
};
};
enum gpio_get_subcmd {
EC_GPIO_GET_BY_NAME = 0,
EC_GPIO_GET_COUNT = 1,
EC_GPIO_GET_INFO = 2,
};
/*****************************************************************************/
/* I2C commands. Only available when flash write protect is unlocked. */
/*
* CAUTION: These commands are deprecated, and are not supported anymore in EC
* builds >= 8398.0.0 (see crosbug.com/p/23570).
*
* Use EC_CMD_I2C_PASSTHRU instead.
*/
/* Read I2C bus */
#define EC_CMD_I2C_READ 0x0094
struct __ec_align_size1 ec_params_i2c_read {
uint16_t addr; /* 8-bit address (7-bit shifted << 1) */
uint8_t read_size; /* Either 8 or 16. */
uint8_t port;
uint8_t offset;
};
struct __ec_align2 ec_response_i2c_read {
uint16_t data;
};
/* Write I2C bus */
#define EC_CMD_I2C_WRITE 0x0095
struct __ec_align_size1 ec_params_i2c_write {
uint16_t data;
uint16_t addr; /* 8-bit address (7-bit shifted << 1) */
uint8_t write_size; /* Either 8 or 16. */
uint8_t port;
uint8_t offset;
};
/*****************************************************************************/
/* Charge state commands. Only available when flash write protect unlocked. */
/* Force charge state machine to stop charging the battery or force it to
* discharge the battery.
*/
#define EC_CMD_CHARGE_CONTROL 0x0096
#define EC_VER_CHARGE_CONTROL 1
enum ec_charge_control_mode {
CHARGE_CONTROL_NORMAL = 0,
CHARGE_CONTROL_IDLE,
CHARGE_CONTROL_DISCHARGE,
};
struct __ec_align4 ec_params_charge_control {
uint32_t mode; /* enum charge_control_mode */
};
/*****************************************************************************/
/* Console commands. Only available when flash write protect is unlocked. */
/* Snapshot console output buffer for use by EC_CMD_CONSOLE_READ. */
#define EC_CMD_CONSOLE_SNAPSHOT 0x0097
/*
* Read data from the saved snapshot. If the subcmd parameter is
* CONSOLE_READ_NEXT, this will return data starting from the beginning of
* the latest snapshot. If it is CONSOLE_READ_RECENT, it will start from the
* end of the previous snapshot.
*
* The params are only looked at in version >= 1 of this command. Prior
* versions will just default to CONSOLE_READ_NEXT behavior.
*
* Response is null-terminated string. Empty string, if there is no more
* remaining output.
*/
#define EC_CMD_CONSOLE_READ 0x0098
enum ec_console_read_subcmd {
CONSOLE_READ_NEXT = 0,
CONSOLE_READ_RECENT
};
struct __ec_align1 ec_params_console_read_v1 {
uint8_t subcmd; /* enum ec_console_read_subcmd */
};
/*****************************************************************************/
/*
* Cut off battery power immediately or after the host has shut down.
*
* return EC_RES_INVALID_COMMAND if unsupported by a board/battery.
* EC_RES_SUCCESS if the command was successful.
* EC_RES_ERROR if the cut off command failed.
*/
#define EC_CMD_BATTERY_CUT_OFF 0x0099
#define EC_BATTERY_CUTOFF_FLAG_AT_SHUTDOWN (1 << 0)
struct __ec_align1 ec_params_battery_cutoff {
uint8_t flags;
};
/*****************************************************************************/
/* USB port mux control. */
/*
* Switch USB mux or return to automatic switching.
*/
#define EC_CMD_USB_MUX 0x009A
struct __ec_align1 ec_params_usb_mux {
uint8_t mux;
};
/*****************************************************************************/
/* LDOs / FETs control. */
enum ec_ldo_state {
EC_LDO_STATE_OFF = 0, /* the LDO / FET is shut down */
EC_LDO_STATE_ON = 1, /* the LDO / FET is ON / providing power */
};
/*
* Switch on/off a LDO.
*/
#define EC_CMD_LDO_SET 0x009B
struct __ec_align1 ec_params_ldo_set {
uint8_t index;
uint8_t state;
};
/*
* Get LDO state.
*/
#define EC_CMD_LDO_GET 0x009C
struct __ec_align1 ec_params_ldo_get {
uint8_t index;
};
struct __ec_align1 ec_response_ldo_get {
uint8_t state;
};
/*****************************************************************************/
/* Power info. */
/*
* Get power info.
*/
#define EC_CMD_POWER_INFO 0x009D
struct __ec_align4 ec_response_power_info {
uint32_t usb_dev_type;
uint16_t voltage_ac;
uint16_t voltage_system;
uint16_t current_system;
uint16_t usb_current_limit;
};
/*****************************************************************************/
/* I2C passthru command */
#define EC_CMD_I2C_PASSTHRU 0x009E
/* Read data; if not present, message is a write */
#define EC_I2C_FLAG_READ (1 << 15)
/* Mask for address */
#define EC_I2C_ADDR_MASK 0x3ff
#define EC_I2C_STATUS_NAK (1 << 0) /* Transfer was not acknowledged */
#define EC_I2C_STATUS_TIMEOUT (1 << 1) /* Timeout during transfer */
/* Any error */
#define EC_I2C_STATUS_ERROR (EC_I2C_STATUS_NAK | EC_I2C_STATUS_TIMEOUT)
struct __ec_align2 ec_params_i2c_passthru_msg {
uint16_t addr_flags; /* I2C slave address (7 or 10 bits) and flags */
uint16_t len; /* Number of bytes to read or write */
};
struct __ec_align2 ec_params_i2c_passthru {
uint8_t port; /* I2C port number */
uint8_t num_msgs; /* Number of messages */
struct ec_params_i2c_passthru_msg msg[];
/* Data to write for all messages is concatenated here */
};
struct __ec_align1 ec_response_i2c_passthru {
uint8_t i2c_status; /* Status flags (EC_I2C_STATUS_...) */
uint8_t num_msgs; /* Number of messages processed */
uint8_t data[]; /* Data read by messages concatenated here */
};
/*****************************************************************************/
/* Power button hang detect */
#define EC_CMD_HANG_DETECT 0x009F
/* Reasons to start hang detection timer */
/* Power button pressed */
#define EC_HANG_START_ON_POWER_PRESS (1 << 0)
/* Lid closed */
#define EC_HANG_START_ON_LID_CLOSE (1 << 1)
/* Lid opened */
#define EC_HANG_START_ON_LID_OPEN (1 << 2)
/* Start of AP S3->S0 transition (booting or resuming from suspend) */
#define EC_HANG_START_ON_RESUME (1 << 3)
/* Reasons to cancel hang detection */
/* Power button released */
#define EC_HANG_STOP_ON_POWER_RELEASE (1 << 8)
/* Any host command from AP received */
#define EC_HANG_STOP_ON_HOST_COMMAND (1 << 9)
/* Stop on end of AP S0->S3 transition (suspending or shutting down) */
#define EC_HANG_STOP_ON_SUSPEND (1 << 10)
/*
* If this flag is set, all the other fields are ignored, and the hang detect
* timer is started. This provides the AP a way to start the hang timer
* without reconfiguring any of the other hang detect settings. Note that
* you must previously have configured the timeouts.
*/
#define EC_HANG_START_NOW (1 << 30)
/*
* If this flag is set, all the other fields are ignored (including
* EC_HANG_START_NOW). This provides the AP a way to stop the hang timer
* without reconfiguring any of the other hang detect settings.
*/
#define EC_HANG_STOP_NOW (1 << 31)
struct __ec_align4 ec_params_hang_detect {
/* Flags; see EC_HANG_* */
uint32_t flags;
/* Timeout in msec before generating host event, if enabled */
uint16_t host_event_timeout_msec;
/* Timeout in msec before generating warm reboot, if enabled */
uint16_t warm_reboot_timeout_msec;
};
/*****************************************************************************/
/* Commands for battery charging */
/*
* This is the single catch-all host command to exchange data regarding the
* charge state machine (v2 and up).
*/
#define EC_CMD_CHARGE_STATE 0x00A0
/* Subcommands for this host command */
enum charge_state_command {
CHARGE_STATE_CMD_GET_STATE,
CHARGE_STATE_CMD_GET_PARAM,
CHARGE_STATE_CMD_SET_PARAM,
CHARGE_STATE_NUM_CMDS
};
/*
* Known param numbers are defined here. Ranges are reserved for board-specific
* params, which are handled by the particular implementations.
*/
enum charge_state_params {
CS_PARAM_CHG_VOLTAGE, /* charger voltage limit */
CS_PARAM_CHG_CURRENT, /* charger current limit */
CS_PARAM_CHG_INPUT_CURRENT, /* charger input current limit */
CS_PARAM_CHG_STATUS, /* charger-specific status */
CS_PARAM_CHG_OPTION, /* charger-specific options */
CS_PARAM_LIMIT_POWER, /*
* Check if power is limited due to
* low battery and / or a weak external
* charger. READ ONLY.
*/
/* How many so far? */
CS_NUM_BASE_PARAMS,
/* Range for CONFIG_CHARGER_PROFILE_OVERRIDE params */
CS_PARAM_CUSTOM_PROFILE_MIN = 0x10000,
CS_PARAM_CUSTOM_PROFILE_MAX = 0x1ffff,
/* Range for CONFIG_CHARGE_STATE_DEBUG params */
CS_PARAM_DEBUG_MIN = 0x20000,
CS_PARAM_DEBUG_CTL_MODE = 0x20000,
CS_PARAM_DEBUG_MANUAL_MODE,
CS_PARAM_DEBUG_SEEMS_DEAD,
CS_PARAM_DEBUG_SEEMS_DISCONNECTED,
CS_PARAM_DEBUG_BATT_REMOVED,
CS_PARAM_DEBUG_MAX = 0x2ffff,
/* Other custom param ranges go here... */
};
struct __ec_todo_packed ec_params_charge_state {
uint8_t cmd; /* enum charge_state_command */
union {
/* get_state has no args */
struct __ec_todo_unpacked {
uint32_t param; /* enum charge_state_param */
} get_param;
struct __ec_todo_unpacked {
uint32_t param; /* param to set */
uint32_t value; /* value to set */
} set_param;
};
};
struct __ec_align4 ec_response_charge_state {
union {
struct __ec_align4 {
int ac;
int chg_voltage;
int chg_current;
int chg_input_current;
int batt_state_of_charge;
} get_state;
struct __ec_align4 {
uint32_t value;
} get_param;
/* set_param returns no args */
};
};
/*
* Set maximum battery charging current.
*/
#define EC_CMD_CHARGE_CURRENT_LIMIT 0x00A1
struct __ec_align4 ec_params_current_limit {
uint32_t limit; /* in mA */
};
/*
* Set maximum external voltage / current.
*/
#define EC_CMD_EXTERNAL_POWER_LIMIT 0x00A2
/* Command v0 is used only on Spring and is obsolete + unsupported */
struct __ec_align2 ec_params_external_power_limit_v1 {
uint16_t current_lim; /* in mA, or EC_POWER_LIMIT_NONE to clear limit */
uint16_t voltage_lim; /* in mV, or EC_POWER_LIMIT_NONE to clear limit */
};
#define EC_POWER_LIMIT_NONE 0xffff
/*
* Set maximum voltage & current of a dedicated charge port
*/
#define EC_CMD_OVERRIDE_DEDICATED_CHARGER_LIMIT 0x00A3
struct __ec_align2 ec_params_dedicated_charger_limit {
uint16_t current_lim; /* in mA */
uint16_t voltage_lim; /* in mV */
};
/*****************************************************************************/
/* Hibernate/Deep Sleep Commands */
/* Set the delay before going into hibernation. */
#define EC_CMD_HIBERNATION_DELAY 0x00A8
struct __ec_align4 ec_params_hibernation_delay {
/*
* Seconds to wait in G3 before hibernate. Pass in 0 to read the
* current settings without changing them.
*/
uint32_t seconds;
};
struct __ec_align4 ec_response_hibernation_delay {
/*
* The current time in seconds in which the system has been in the G3
* state. This value is reset if the EC transitions out of G3.
*/
uint32_t time_g3;
/*
* The current time remaining in seconds until the EC should hibernate.
* This value is also reset if the EC transitions out of G3.
*/
uint32_t time_remaining;
/*
* The current time in seconds that the EC should wait in G3 before
* hibernating.
*/
uint32_t hibernate_delay;
};
/* Inform the EC when entering a sleep state */
#define EC_CMD_HOST_SLEEP_EVENT 0x00A9
enum host_sleep_event {
HOST_SLEEP_EVENT_S3_SUSPEND = 1,
HOST_SLEEP_EVENT_S3_RESUME = 2,
HOST_SLEEP_EVENT_S0IX_SUSPEND = 3,
HOST_SLEEP_EVENT_S0IX_RESUME = 4,
/* S3 suspend with additional enabled wake sources */
HOST_SLEEP_EVENT_S3_WAKEABLE_SUSPEND = 5,
};
struct __ec_align1 ec_params_host_sleep_event {
uint8_t sleep_event;
};
/*****************************************************************************/
/* Device events */
#define EC_CMD_DEVICE_EVENT 0x00AA
enum ec_device_event {
EC_DEVICE_EVENT_TRACKPAD,
EC_DEVICE_EVENT_DSP,
EC_DEVICE_EVENT_WIFI,
};
enum ec_device_event_param {
/* Get and clear pending device events */
EC_DEVICE_EVENT_PARAM_GET_CURRENT_EVENTS,
/* Get device event mask */
EC_DEVICE_EVENT_PARAM_GET_ENABLED_EVENTS,
/* Set device event mask */
EC_DEVICE_EVENT_PARAM_SET_ENABLED_EVENTS,
};
#define EC_DEVICE_EVENT_MASK(event_code) (1UL << (event_code % 32))
struct __ec_align_size1 ec_params_device_event {
uint32_t event_mask;
uint8_t param;
};
struct __ec_align4 ec_response_device_event {
uint32_t event_mask;
};
/*****************************************************************************/
/* Smart battery pass-through */
/* Get / Set 16-bit smart battery registers */
#define EC_CMD_SB_READ_WORD 0x00B0
#define EC_CMD_SB_WRITE_WORD 0x00B1
/* Get / Set string smart battery parameters
* formatted as SMBUS "block".
*/
#define EC_CMD_SB_READ_BLOCK 0x00B2
#define EC_CMD_SB_WRITE_BLOCK 0x00B3
struct __ec_align1 ec_params_sb_rd {
uint8_t reg;
};
struct __ec_align2 ec_response_sb_rd_word {
uint16_t value;
};
struct __ec_align1 ec_params_sb_wr_word {
uint8_t reg;
uint16_t value;
};
struct __ec_align1 ec_response_sb_rd_block {
uint8_t data[32];
};
struct __ec_align1 ec_params_sb_wr_block {
uint8_t reg;
uint16_t data[32];
};
/*****************************************************************************/
/* Battery vendor parameters
*
* Get or set vendor-specific parameters in the battery. Implementations may
* differ between boards or batteries. On a set operation, the response
* contains the actual value set, which may be rounded or clipped from the
* requested value.
*/
#define EC_CMD_BATTERY_VENDOR_PARAM 0x00B4
enum ec_battery_vendor_param_mode {
BATTERY_VENDOR_PARAM_MODE_GET = 0,
BATTERY_VENDOR_PARAM_MODE_SET,
};
struct __ec_align_size1 ec_params_battery_vendor_param {
uint32_t param;
uint32_t value;
uint8_t mode;
};
struct __ec_align4 ec_response_battery_vendor_param {
uint32_t value;
};
/*****************************************************************************/
/*
* Smart Battery Firmware Update Commands
*/
#define EC_CMD_SB_FW_UPDATE 0x00B5
enum ec_sb_fw_update_subcmd {
EC_SB_FW_UPDATE_PREPARE = 0x0,
EC_SB_FW_UPDATE_INFO = 0x1, /*query sb info */
EC_SB_FW_UPDATE_BEGIN = 0x2, /*check if protected */
EC_SB_FW_UPDATE_WRITE = 0x3, /*check if protected */
EC_SB_FW_UPDATE_END = 0x4,
EC_SB_FW_UPDATE_STATUS = 0x5,
EC_SB_FW_UPDATE_PROTECT = 0x6,
EC_SB_FW_UPDATE_MAX = 0x7,
};
#define SB_FW_UPDATE_CMD_WRITE_BLOCK_SIZE 32
#define SB_FW_UPDATE_CMD_STATUS_SIZE 2
#define SB_FW_UPDATE_CMD_INFO_SIZE 8
struct __ec_align4 ec_sb_fw_update_header {
uint16_t subcmd; /* enum ec_sb_fw_update_subcmd */
uint16_t fw_id; /* firmware id */
};
struct __ec_align4 ec_params_sb_fw_update {
struct ec_sb_fw_update_header hdr;
union {
/* EC_SB_FW_UPDATE_PREPARE = 0x0 */
/* EC_SB_FW_UPDATE_INFO = 0x1 */
/* EC_SB_FW_UPDATE_BEGIN = 0x2 */
/* EC_SB_FW_UPDATE_END = 0x4 */
/* EC_SB_FW_UPDATE_STATUS = 0x5 */
/* EC_SB_FW_UPDATE_PROTECT = 0x6 */
/* Those have no args */
/* EC_SB_FW_UPDATE_WRITE = 0x3 */
struct __ec_align4 {
uint8_t data[SB_FW_UPDATE_CMD_WRITE_BLOCK_SIZE];
} write;
};
};
struct __ec_align1 ec_response_sb_fw_update {
union {
/* EC_SB_FW_UPDATE_INFO = 0x1 */
struct __ec_align1 {
uint8_t data[SB_FW_UPDATE_CMD_INFO_SIZE];
} info;
/* EC_SB_FW_UPDATE_STATUS = 0x5 */
struct __ec_align1 {
uint8_t data[SB_FW_UPDATE_CMD_STATUS_SIZE];
} status;
};
};
/*
* Entering Verified Boot Mode Command
* Default mode is VBOOT_MODE_NORMAL if EC did not receive this command.
* Valid Modes are: normal, developer, and recovery.
*/
#define EC_CMD_ENTERING_MODE 0x00B6
struct __ec_align4 ec_params_entering_mode {
int vboot_mode;
};
#define VBOOT_MODE_NORMAL 0
#define VBOOT_MODE_DEVELOPER 1
#define VBOOT_MODE_RECOVERY 2
/*****************************************************************************/
/*
* I2C passthru protection command: Protects I2C tunnels against access on
* certain addresses (board-specific).
*/
#define EC_CMD_I2C_PASSTHRU_PROTECT 0x00B7
enum ec_i2c_passthru_protect_subcmd {
EC_CMD_I2C_PASSTHRU_PROTECT_STATUS = 0x0,
EC_CMD_I2C_PASSTHRU_PROTECT_ENABLE = 0x1,
};
struct __ec_align1 ec_params_i2c_passthru_protect {
uint8_t subcmd;
uint8_t port; /* I2C port number */
};
struct __ec_align1 ec_response_i2c_passthru_protect {
uint8_t status; /* Status flags (0: unlocked, 1: locked) */
};
/*****************************************************************************/
/* System commands */
/*
* TODO(crosbug.com/p/23747): This is a confusing name, since it doesn't
* necessarily reboot the EC. Rename to "image" or something similar?
*/
#define EC_CMD_REBOOT_EC 0x00D2
/* Command */
enum ec_reboot_cmd {
EC_REBOOT_CANCEL = 0, /* Cancel a pending reboot */
EC_REBOOT_JUMP_RO = 1, /* Jump to RO without rebooting */
EC_REBOOT_JUMP_RW = 2, /* Jump to active RW without rebooting */
/* (command 3 was jump to RW-B) */
EC_REBOOT_COLD = 4, /* Cold-reboot */
EC_REBOOT_DISABLE_JUMP = 5, /* Disable jump until next reboot */
EC_REBOOT_HIBERNATE = 6, /* Hibernate EC */
EC_REBOOT_HIBERNATE_CLEAR_AP_OFF = 7, /* and clears AP_OFF flag */
};
/* Flags for ec_params_reboot_ec.reboot_flags */
#define EC_REBOOT_FLAG_RESERVED0 (1 << 0) /* Was recovery request */
#define EC_REBOOT_FLAG_ON_AP_SHUTDOWN (1 << 1) /* Reboot after AP shutdown */
#define EC_REBOOT_FLAG_SWITCH_RW_SLOT (1 << 2) /* Switch RW slot */
struct __ec_align1 ec_params_reboot_ec {
uint8_t cmd; /* enum ec_reboot_cmd */
uint8_t flags; /* See EC_REBOOT_FLAG_* */
};
/*
* Get information on last EC panic.
*
* Returns variable-length platform-dependent panic information. See panic.h
* for details.
*/
#define EC_CMD_GET_PANIC_INFO 0x00D3
/*****************************************************************************/
/*
* Special commands
*
* These do not follow the normal rules for commands. See each command for
* details.
*/
/*
* Reboot NOW
*
* This command will work even when the EC LPC interface is busy, because the
* reboot command is processed at interrupt level. Note that when the EC
* reboots, the host will reboot too, so there is no response to this command.
*
* Use EC_CMD_REBOOT_EC to reboot the EC more politely.
*/
#define EC_CMD_REBOOT 0x00D1 /* Think "die" */
/*
* Resend last response (not supported on LPC).
*
* Returns EC_RES_UNAVAILABLE if there is no response available - for example,
* there was no previous command, or the previous command's response was too
* big to save.
*/
#define EC_CMD_RESEND_RESPONSE 0x00DB
/*
* This header byte on a command indicate version 0. Any header byte less
* than this means that we are talking to an old EC which doesn't support
* versioning. In that case, we assume version 0.
*
* Header bytes greater than this indicate a later version. For example,
* EC_CMD_VERSION0 + 1 means we are using version 1.
*
* The old EC interface must not use commands 0xdc or higher.
*/
#define EC_CMD_VERSION0 0x00DC
/*****************************************************************************/
/*
* PD commands
*
* These commands are for PD MCU communication.
*/
/* EC to PD MCU exchange status command */
#define EC_CMD_PD_EXCHANGE_STATUS 0x0100
#define EC_VER_PD_EXCHANGE_STATUS 2
enum pd_charge_state {
PD_CHARGE_NO_CHANGE = 0, /* Don't change charge state */
PD_CHARGE_NONE, /* No charging allowed */
PD_CHARGE_5V, /* 5V charging only */
PD_CHARGE_MAX /* Charge at max voltage */
};
/* Status of EC being sent to PD */
#define EC_STATUS_HIBERNATING (1 << 0)
struct __ec_align1 ec_params_pd_status {
uint8_t status; /* EC status */
int8_t batt_soc; /* battery state of charge */
uint8_t charge_state; /* charging state (from enum pd_charge_state) */
};
/* Status of PD being sent back to EC */
#define PD_STATUS_HOST_EVENT (1 << 0) /* Forward host event to AP */
#define PD_STATUS_IN_RW (1 << 1) /* Running RW image */
#define PD_STATUS_JUMPED_TO_IMAGE (1 << 2) /* Current image was jumped to */
#define PD_STATUS_TCPC_ALERT_0 (1 << 3) /* Alert active in port 0 TCPC */
#define PD_STATUS_TCPC_ALERT_1 (1 << 4) /* Alert active in port 1 TCPC */
#define PD_STATUS_TCPC_ALERT_2 (1 << 5) /* Alert active in port 2 TCPC */
#define PD_STATUS_TCPC_ALERT_3 (1 << 6) /* Alert active in port 3 TCPC */
#define PD_STATUS_EC_INT_ACTIVE (PD_STATUS_TCPC_ALERT_0 | \
PD_STATUS_TCPC_ALERT_1 | \
PD_STATUS_HOST_EVENT)
struct __ec_align_size1 ec_response_pd_status {
uint32_t curr_lim_ma; /* input current limit */
uint16_t status; /* PD MCU status */
int8_t active_charge_port; /* active charging port */
};
/* AP to PD MCU host event status command, cleared on read */
#define EC_CMD_PD_HOST_EVENT_STATUS 0x0104
/* PD MCU host event status bits */
#define PD_EVENT_UPDATE_DEVICE (1 << 0)
#define PD_EVENT_POWER_CHANGE (1 << 1)
#define PD_EVENT_IDENTITY_RECEIVED (1 << 2)
#define PD_EVENT_DATA_SWAP (1 << 3)
struct __ec_align4 ec_response_host_event_status {
uint32_t status; /* PD MCU host event status */
};
/* Set USB type-C port role and muxes */
#define EC_CMD_USB_PD_CONTROL 0x0101
enum usb_pd_control_role {
USB_PD_CTRL_ROLE_NO_CHANGE = 0,
USB_PD_CTRL_ROLE_TOGGLE_ON = 1, /* == AUTO */
USB_PD_CTRL_ROLE_TOGGLE_OFF = 2,
USB_PD_CTRL_ROLE_FORCE_SINK = 3,
USB_PD_CTRL_ROLE_FORCE_SOURCE = 4,
USB_PD_CTRL_ROLE_FREEZE = 5,
USB_PD_CTRL_ROLE_COUNT
};
enum usb_pd_control_mux {
USB_PD_CTRL_MUX_NO_CHANGE = 0,
USB_PD_CTRL_MUX_NONE = 1,
USB_PD_CTRL_MUX_USB = 2,
USB_PD_CTRL_MUX_DP = 3,
USB_PD_CTRL_MUX_DOCK = 4,
USB_PD_CTRL_MUX_AUTO = 5,
USB_PD_CTRL_MUX_COUNT
};
enum usb_pd_control_swap {
USB_PD_CTRL_SWAP_NONE = 0,
USB_PD_CTRL_SWAP_DATA = 1,
USB_PD_CTRL_SWAP_POWER = 2,
USB_PD_CTRL_SWAP_VCONN = 3,
USB_PD_CTRL_SWAP_COUNT
};
struct __ec_align1 ec_params_usb_pd_control {
uint8_t port;
uint8_t role;
uint8_t mux;
uint8_t swap;
};
#define PD_CTRL_RESP_ENABLED_COMMS (1 << 0) /* Communication enabled */
#define PD_CTRL_RESP_ENABLED_CONNECTED (1 << 1) /* Device connected */
#define PD_CTRL_RESP_ENABLED_PD_CAPABLE (1 << 2) /* Partner is PD capable */
#define PD_CTRL_RESP_ROLE_POWER (1 << 0) /* 0=SNK/1=SRC */
#define PD_CTRL_RESP_ROLE_DATA (1 << 1) /* 0=UFP/1=DFP */
#define PD_CTRL_RESP_ROLE_VCONN (1 << 2) /* Vconn status */
#define PD_CTRL_RESP_ROLE_DR_POWER (1 << 3) /* Partner is dualrole power */
#define PD_CTRL_RESP_ROLE_DR_DATA (1 << 4) /* Partner is dualrole data */
#define PD_CTRL_RESP_ROLE_USB_COMM (1 << 5) /* Partner USB comm capable */
#define PD_CTRL_RESP_ROLE_EXT_POWERED (1 << 6) /* Partner externally powerd */
struct __ec_align1 ec_response_usb_pd_control {
uint8_t enabled;
uint8_t role;
uint8_t polarity;
uint8_t state;
};
struct __ec_align1 ec_response_usb_pd_control_v1 {
uint8_t enabled;
uint8_t role;
uint8_t polarity;
char state[32];
};
#define EC_CMD_USB_PD_PORTS 0x0102
/* Maximum number of PD ports on a device, num_ports will be <= this */
#define EC_USB_PD_MAX_PORTS 8
struct __ec_align1 ec_response_usb_pd_ports {
uint8_t num_ports;
};
#define EC_CMD_USB_PD_POWER_INFO 0x0103
#define PD_POWER_CHARGING_PORT 0xff
struct __ec_align1 ec_params_usb_pd_power_info {
uint8_t port;
};
enum usb_chg_type {
USB_CHG_TYPE_NONE,
USB_CHG_TYPE_PD,
USB_CHG_TYPE_C,
USB_CHG_TYPE_PROPRIETARY,
USB_CHG_TYPE_BC12_DCP,
USB_CHG_TYPE_BC12_CDP,
USB_CHG_TYPE_BC12_SDP,
USB_CHG_TYPE_OTHER,
USB_CHG_TYPE_VBUS,
USB_CHG_TYPE_UNKNOWN,
USB_CHG_TYPE_DEDICATED,
};
enum usb_power_roles {
USB_PD_PORT_POWER_DISCONNECTED,
USB_PD_PORT_POWER_SOURCE,
USB_PD_PORT_POWER_SINK,
USB_PD_PORT_POWER_SINK_NOT_CHARGING,
};
struct __ec_align2 usb_chg_measures {
uint16_t voltage_max;
uint16_t voltage_now;
uint16_t current_max;
uint16_t current_lim;
};
struct __ec_align4 ec_response_usb_pd_power_info {
uint8_t role;
uint8_t type;
uint8_t dualrole;
uint8_t reserved1;
struct usb_chg_measures meas;
uint32_t max_power;
};
/* Write USB-PD device FW */
#define EC_CMD_USB_PD_FW_UPDATE 0x0110
enum usb_pd_fw_update_cmds {
USB_PD_FW_REBOOT,
USB_PD_FW_FLASH_ERASE,
USB_PD_FW_FLASH_WRITE,
USB_PD_FW_ERASE_SIG,
};
struct __ec_align4 ec_params_usb_pd_fw_update {
uint16_t dev_id;
uint8_t cmd;
uint8_t port;
uint32_t size; /* Size to write in bytes */
/* Followed by data to write */
};
/* Write USB-PD Accessory RW_HASH table entry */
#define EC_CMD_USB_PD_RW_HASH_ENTRY 0x0111
/* RW hash is first 20 bytes of SHA-256 of RW section */
#define PD_RW_HASH_SIZE 20
struct __ec_align1 ec_params_usb_pd_rw_hash_entry {
uint16_t dev_id;
uint8_t dev_rw_hash[PD_RW_HASH_SIZE];
uint8_t reserved; /* For alignment of current_image
* TODO(rspangler) but it's not aligned!
* Should have been reserved[2]. */
uint32_t current_image; /* One of ec_current_image */
};
/* Read USB-PD Accessory info */
#define EC_CMD_USB_PD_DEV_INFO 0x0112
struct __ec_align1 ec_params_usb_pd_info_request {
uint8_t port;
};
/* Read USB-PD Device discovery info */
#define EC_CMD_USB_PD_DISCOVERY 0x0113
struct __ec_align_size1 ec_params_usb_pd_discovery_entry {
uint16_t vid; /* USB-IF VID */
uint16_t pid; /* USB-IF PID */
uint8_t ptype; /* product type (hub,periph,cable,ama) */
};
/* Override default charge behavior */
#define EC_CMD_PD_CHARGE_PORT_OVERRIDE 0x0114
/* Negative port parameters have special meaning */
enum usb_pd_override_ports {
OVERRIDE_DONT_CHARGE = -2,
OVERRIDE_OFF = -1,
/* [0, CONFIG_USB_PD_PORT_COUNT): Port# */
};
struct __ec_align2 ec_params_charge_port_override {
int16_t override_port; /* Override port# */
};
/*
* Read (and delete) one entry of PD event log.
* TODO(crbug.com/751742): Make this host command more generic to accommodate
* future non-PD logs that use the same internal EC event_log.
*/
#define EC_CMD_PD_GET_LOG_ENTRY 0x0115
struct __ec_align4 ec_response_pd_log {
uint32_t timestamp; /* relative timestamp in milliseconds */
uint8_t type; /* event type : see PD_EVENT_xx below */
uint8_t size_port; /* [7:5] port number [4:0] payload size in bytes */
uint16_t data; /* type-defined data payload */
uint8_t payload[0]; /* optional additional data payload: 0..16 bytes */
};
/* The timestamp is the microsecond counter shifted to get about a ms. */
#define PD_LOG_TIMESTAMP_SHIFT 10 /* 1 LSB = 1024us */
#define PD_LOG_SIZE_MASK 0x1f
#define PD_LOG_PORT_MASK 0xe0
#define PD_LOG_PORT_SHIFT 5
#define PD_LOG_PORT_SIZE(port, size) (((port) << PD_LOG_PORT_SHIFT) | \
((size) & PD_LOG_SIZE_MASK))
#define PD_LOG_PORT(size_port) ((size_port) >> PD_LOG_PORT_SHIFT)
#define PD_LOG_SIZE(size_port) ((size_port) & PD_LOG_SIZE_MASK)
/* PD event log : entry types */
/* PD MCU events */
#define PD_EVENT_MCU_BASE 0x00
#define PD_EVENT_MCU_CHARGE (PD_EVENT_MCU_BASE+0)
#define PD_EVENT_MCU_CONNECT (PD_EVENT_MCU_BASE+1)
/* Reserved for custom board event */
#define PD_EVENT_MCU_BOARD_CUSTOM (PD_EVENT_MCU_BASE+2)
/* PD generic accessory events */
#define PD_EVENT_ACC_BASE 0x20
#define PD_EVENT_ACC_RW_FAIL (PD_EVENT_ACC_BASE+0)
#define PD_EVENT_ACC_RW_ERASE (PD_EVENT_ACC_BASE+1)
/* PD power supply events */
#define PD_EVENT_PS_BASE 0x40
#define PD_EVENT_PS_FAULT (PD_EVENT_PS_BASE+0)
/* PD video dongles events */
#define PD_EVENT_VIDEO_BASE 0x60
#define PD_EVENT_VIDEO_DP_MODE (PD_EVENT_VIDEO_BASE+0)
#define PD_EVENT_VIDEO_CODEC (PD_EVENT_VIDEO_BASE+1)
/* Returned in the "type" field, when there is no entry available */
#define PD_EVENT_NO_ENTRY 0xff
/*
* PD_EVENT_MCU_CHARGE event definition :
* the payload is "struct usb_chg_measures"
* the data field contains the port state flags as defined below :
*/
/* Port partner is a dual role device */
#define CHARGE_FLAGS_DUAL_ROLE (1 << 15)
/* Port is the pending override port */
#define CHARGE_FLAGS_DELAYED_OVERRIDE (1 << 14)
/* Port is the override port */
#define CHARGE_FLAGS_OVERRIDE (1 << 13)
/* Charger type */
#define CHARGE_FLAGS_TYPE_SHIFT 3
#define CHARGE_FLAGS_TYPE_MASK (0xf << CHARGE_FLAGS_TYPE_SHIFT)
/* Power delivery role */
#define CHARGE_FLAGS_ROLE_MASK (7 << 0)
/*
* PD_EVENT_PS_FAULT data field flags definition :
*/
#define PS_FAULT_OCP 1
#define PS_FAULT_FAST_OCP 2
#define PS_FAULT_OVP 3
#define PS_FAULT_DISCH 4
/*
* PD_EVENT_VIDEO_CODEC payload is "struct mcdp_info".
*/
struct __ec_align4 mcdp_version {
uint8_t major;
uint8_t minor;
uint16_t build;
};
struct __ec_align4 mcdp_info {
uint8_t family[2];
uint8_t chipid[2];
struct mcdp_version irom;
struct mcdp_version fw;
};
/* struct mcdp_info field decoding */
#define MCDP_CHIPID(chipid) ((chipid[0] << 8) | chipid[1])
#define MCDP_FAMILY(family) ((family[0] << 8) | family[1])
/* Get/Set USB-PD Alternate mode info */
#define EC_CMD_USB_PD_GET_AMODE 0x0116
struct __ec_align_size1 ec_params_usb_pd_get_mode_request {
uint16_t svid_idx; /* SVID index to get */
uint8_t port; /* port */
};
struct __ec_align4 ec_params_usb_pd_get_mode_response {
uint16_t svid; /* SVID */
uint16_t opos; /* Object Position */
uint32_t vdo[6]; /* Mode VDOs */
};
#define EC_CMD_USB_PD_SET_AMODE 0x0117
enum pd_mode_cmd {
PD_EXIT_MODE = 0,
PD_ENTER_MODE = 1,
/* Not a command. Do NOT remove. */
PD_MODE_CMD_COUNT,
};
struct __ec_align4 ec_params_usb_pd_set_mode_request {
uint32_t cmd; /* enum pd_mode_cmd */
uint16_t svid; /* SVID to set */
uint8_t opos; /* Object Position */
uint8_t port; /* port */
};
/* Ask the PD MCU to record a log of a requested type */
#define EC_CMD_PD_WRITE_LOG_ENTRY 0x0118
struct __ec_align1 ec_params_pd_write_log_entry {
uint8_t type; /* event type : see PD_EVENT_xx above */
uint8_t port; /* port#, or 0 for events unrelated to a given port */
};
/* Control USB-PD chip */
#define EC_CMD_PD_CONTROL 0x0119
enum ec_pd_control_cmd {
PD_SUSPEND = 0, /* Suspend the PD chip (EC: stop talking to PD) */
PD_RESUME, /* Resume the PD chip (EC: start talking to PD) */
PD_RESET, /* Force reset the PD chip */
PD_CONTROL_DISABLE, /* Disable further calls to this command */
PD_CHIP_ON, /* Power on the PD chip */
};
struct __ec_align1 ec_params_pd_control {
uint8_t chip; /* chip id (should be 0) */
uint8_t subcmd;
};
/* Get info about USB-C SS muxes */
#define EC_CMD_USB_PD_MUX_INFO 0x011A
struct __ec_align1 ec_params_usb_pd_mux_info {
uint8_t port; /* USB-C port number */
};
/* Flags representing mux state */
#define USB_PD_MUX_USB_ENABLED (1 << 0)
#define USB_PD_MUX_DP_ENABLED (1 << 1)
#define USB_PD_MUX_POLARITY_INVERTED (1 << 2)
#define USB_PD_MUX_HPD_IRQ (1 << 3)
struct __ec_align1 ec_response_usb_pd_mux_info {
uint8_t flags; /* USB_PD_MUX_*-encoded USB mux state */
};
#define EC_CMD_PD_CHIP_INFO 0x011B
struct __ec_align1 ec_params_pd_chip_info {
uint8_t port; /* USB-C port number */
uint8_t renew; /* Force renewal */
};
struct __ec_align2 ec_response_pd_chip_info {
uint16_t vendor_id;
uint16_t product_id;
uint16_t device_id;
union {
uint8_t fw_version_string[8];
uint64_t fw_version_number;
};
};
/* Run RW signature verification and get status */
#define EC_CMD_RWSIG_CHECK_STATUS 0x011C
struct __ec_align4 ec_response_rwsig_check_status {
uint32_t status;
};
/* For controlling RWSIG task */
#define EC_CMD_RWSIG_ACTION 0x011D
enum rwsig_action {
RWSIG_ACTION_ABORT = 0, /* Abort RWSIG and prevent jumping */
RWSIG_ACTION_CONTINUE = 1, /* Jump to RW immediately */
};
struct __ec_align4 ec_params_rwsig_action {
uint32_t action;
};
/* Run verification on a slot */
#define EC_CMD_EFS_VERIFY 0x011E
struct __ec_align1 ec_params_efs_verify {
uint8_t region; /* enum ec_flash_region */
};
/*
* 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_type {
/* integer types */
CBI_DATA_BOARD_VERSION = 0,
CBI_DATA_OEM_ID = 1,
CBI_DATA_SKU_ID = 2,
/* string types */
CBI_FIRST_STRING_PARAM = 0x1000,
CBI_DATA_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 (1 << 0)
struct __ec_align4 ec_params_get_cbi {
uint32_t type; /* enum cbi_data_type */
uint32_t flag; /* CBI_GET_* */
};
/*
* 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 (1 << 0)
#define CBI_SET_INIT (1 << 1)
struct __ec_align1 ec_params_set_cbi {
uint32_t type; /* enum cbi_data_type */
uint32_t flag; /* CBI_SET_* */
uint32_t data; /* For numeric value */
uint8_t raw[]; /* For string and raw data */
};
/*****************************************************************************/
/* The command range 0x200-0x2FF is reserved for Rotor. */
/*****************************************************************************/
/*
* Reserve a range of host commands for the CR51 firmware.
*/
#define EC_CMD_CR51_BASE 0x0300
#define EC_CMD_CR51_LAST 0x03FF
/*****************************************************************************/
/* Fingerprint MCU commands: range 0x0400-0x040x */
/* Fingerprint SPI sensor passthru command: prototyping ONLY */
#define EC_CMD_FP_PASSTHRU 0x0400
#define EC_FP_FLAG_NOT_COMPLETE 0x1
struct __ec_align2 ec_params_fp_passthru {
uint16_t len; /* Number of bytes to write then read */
uint16_t flags; /* EC_FP_FLAG_xxx */
uint8_t data[]; /* Data to send */
};
/* Fingerprint sensor configuration command: prototyping ONLY */
#define EC_CMD_FP_SENSOR_CONFIG 0x0401
#define EC_FP_SENSOR_CONFIG_MAX_REGS 16
struct __ec_align2 ec_params_fp_sensor_config {
uint8_t count; /* Number of setup registers */
/*
* the value to send to each of the 'count' setup registers
* is stored in the 'data' array for 'len' bytes just after
* the previous one.
*/
uint8_t len[EC_FP_SENSOR_CONFIG_MAX_REGS];
uint8_t data[];
};
/* Configure the Fingerprint MCU behavior */
#define EC_CMD_FP_MODE 0x0402
/* Put the sensor in its lowest power mode */
#define FP_MODE_DEEPSLEEP (1<<0)
/* Wait to see a finger on the sensor */
#define FP_MODE_FINGER_DOWN (1<<1)
/* Poll until the finger has left the sensor */
#define FP_MODE_FINGER_UP (1<<2)
/* Capture the current finger image */
#define FP_MODE_CAPTURE (1<<3)
/* Capture types defined in bits [30..28] */
#define FP_MODE_CAPTURE_TYPE_SHIFT 28
#define FP_MODE_CAPTURE_TYPE_MASK 0x7
/* Full blown vendor-defined capture (produces 'frame_size' bytes) */
#define FP_CAPTURE_VENDOR_FORMAT 0
/* Simple raw image capture (produces width x height x bpp bits) */
#define FP_CAPTURE_SIMPLE_IMAGE 1
/* Self test pattern (e.g. checkerboard) */
#define FP_CAPTURE_PATTERN0 2
/* Self test pattern (e.g. inverted checkerboard) */
#define FP_CAPTURE_PATTERN1 3
/* Extracts the capture type from the sensor 'mode' word */
#define FP_CAPTURE_TYPE(mode) (((mode) >> FP_MODE_CAPTURE_TYPE_SHIFT) \
& FP_MODE_CAPTURE_TYPE_MASK)
/* special value: don't change anything just read back current mode */
#define FP_MODE_DONT_CHANGE (1<<31)
struct __ec_align4 ec_params_fp_mode {
uint32_t mode; /* as defined by FP_MODE_ constants */
};
struct __ec_align4 ec_response_fp_mode {
uint32_t mode; /* as defined by FP_MODE_ constants */
};
/* Retrieve Fingerprint sensor information */
#define EC_CMD_FP_INFO 0x0403
/* Number of dead pixels detected on the last maintenance */
#define FP_ERROR_DEAD_PIXELS(errors) ((errors) & 0x3FF)
/* No interrupt from the sensor */
#define FP_ERROR_NO_IRQ (1 << 12)
/* SPI communication error */
#define FP_ERROR_SPI_COMM (1 << 13)
/* Invalid sensor Hardware ID */
#define FP_ERROR_BAD_HWID (1 << 14)
/* Sensor initialization failed */
#define FP_ERROR_INIT_FAIL (1 << 15)
struct __ec_align2 ec_response_fp_info {
/* Sensor identification */
uint32_t vendor_id;
uint32_t product_id;
uint32_t model_id;
uint32_t version;
/* Image frame characteristics */
uint32_t frame_size;
uint32_t pixel_format; /* using V4L2_PIX_FMT_ */
uint16_t width;
uint16_t height;
uint16_t bpp;
uint16_t errors; /* see FP_ERROR_ flags above */
};
/* Get the last captured finger frame */
#define EC_CMD_FP_FRAME 0x0404
struct __ec_align4 ec_params_fp_frame {
uint32_t offset;
uint32_t size;
};
/*****************************************************************************/
/* Touchpad MCU commands: range 0x0500-0x05FF */
/* Perform touchpad self test */
#define EC_CMD_TP_SELF_TEST 0x0500
/* Get number of frame types, and the size of each type */
#define EC_CMD_TP_FRAME_INFO 0x0501
struct __ec_align4 ec_response_tp_frame_info {
uint32_t n_frames;
uint32_t frame_sizes[0];
};
/* Create a snapshot of current frame readings */
#define EC_CMD_TP_FRAME_SNAPSHOT 0x0502
/* Read the frame */
#define EC_CMD_TP_FRAME_GET 0x0503
struct __ec_align4 ec_params_tp_frame_get {
uint32_t frame_index;
uint32_t offset;
uint32_t size;
};
/*****************************************************************************/
/* EC-EC communication commands: range 0x0600-0x06FF */
#define EC_COMM_TEXT_MAX 8
/*
* Get battery static information, i.e. information that never changes, or
* very infrequently.
*/
#define EC_CMD_BATTERY_GET_STATIC 0x0600
struct __ec_align_size1 ec_params_battery_static_info {
uint8_t index; /* Battery index. */
};
struct __ec_align4 ec_response_battery_static_info {
uint16_t design_capacity; /* Battery Design Capacity (mAh) */
uint16_t design_voltage; /* Battery Design Voltage (mV) */
char manufacturer[EC_COMM_TEXT_MAX]; /* Battery Manufacturer String */
char model[EC_COMM_TEXT_MAX]; /* Battery Model Number String */
char serial[EC_COMM_TEXT_MAX]; /* Battery Serial Number String */
char type[EC_COMM_TEXT_MAX]; /* Battery Type String */
/* TODO(crbug.com/795991): Consider moving to dynamic structure. */
uint32_t cycle_count; /* Battery Cycle Count */
};
/*
* Get battery dynamic information, i.e. information that is likely to change
* every time it is read.
*/
#define EC_CMD_BATTERY_GET_DYNAMIC 0x0601
struct __ec_align_size1 ec_params_battery_dynamic_info {
uint8_t index; /* Battery index. */
};
struct __ec_align2 ec_response_battery_dynamic_info {
int16_t actual_voltage; /* Battery voltage (mV) */
int16_t actual_current; /* Battery current (mA); negative=discharging */
int16_t remaining_capacity; /* Remaining capacity (mAh) */
int16_t full_capacity; /* Capacity (mAh, might change occasionally) */
int16_t flags; /* Flags, see EC_BATT_FLAG_* */
int16_t desired_voltage; /* Charging voltage desired by battery (mV) */
int16_t desired_current; /* Charging current desired by battery (mA) */
};
/*
* Control charger chip. Used to control charger chip on the slave.
*/
#define EC_CMD_CHARGER_CONTROL 0x0602
struct __ec_align_size1 ec_params_charger_control {
/*
* Charger current (mA). Positive to allow base to draw up to
* max_current and (possibly) charge battery, negative to request
* current from base (OTG).
*/
int16_t max_current;
/* Voltage (mV) to use in OTG mode, ignored if max_current is >= 0. */
uint16_t otg_voltage;
/* Allow base battery charging (only makes sense if max_current > 0). */
uint8_t allow_charging;
};
/*****************************************************************************/
/*
* Reserve a range of host commands for board-specific, experimental, or
* special purpose features. These can be (re)used without updating this file.
*
* CAUTION: Don't go nuts with this. Shipping products should document ALL
* their EC commands for easier development, testing, debugging, and support.
*
* All commands MUST be #defined to be 4-digit UPPER CASE hex values
* (e.g., 0x00AB, not 0xab) for CONFIG_HOSTCMD_SECTION_SORTED to work.
*
* In your experimental code, you may want to do something like this:
*
* #define EC_CMD_MAGIC_FOO 0x0000
* #define EC_CMD_MAGIC_BAR 0x0001
* #define EC_CMD_MAGIC_HEY 0x0002
*
* DECLARE_PRIVATE_HOST_COMMAND(EC_CMD_MAGIC_FOO, magic_foo_handler,
* EC_VER_MASK(0);
*
* DECLARE_PRIVATE_HOST_COMMAND(EC_CMD_MAGIC_BAR, magic_bar_handler,
* EC_VER_MASK(0);
*
* DECLARE_PRIVATE_HOST_COMMAND(EC_CMD_MAGIC_HEY, magic_hey_handler,
* EC_VER_MASK(0);
*/
#define EC_CMD_BOARD_SPECIFIC_BASE 0x3E00
#define EC_CMD_BOARD_SPECIFIC_LAST 0x3FFF
/*
* Given the private host command offset, calculate the true private host
* command value.
*/
#define EC_PRIVATE_HOST_COMMAND_VALUE(command) \
(EC_CMD_BOARD_SPECIFIC_BASE + (command))
/*****************************************************************************/
/*
* Passthru commands
*
* Some platforms have sub-processors chained to each other. For example.
*
* AP <--> EC <--> PD MCU
*
* The top 2 bits of the command number are used to indicate which device the
* command is intended for. Device 0 is always the device receiving the
* command; other device mapping is board-specific.
*
* When a device receives a command to be passed to a sub-processor, it passes
* it on with the device number set back to 0. This allows the sub-processor
* to remain blissfully unaware of whether the command originated on the next
* device up the chain, or was passed through from the AP.
*
* In the above example, if the AP wants to send command 0x0002 to the PD MCU,
* AP sends command 0x4002 to the EC
* EC sends command 0x0002 to the PD MCU
* EC forwards PD MCU response back to the AP
*/
/* Offset and max command number for sub-device n */
#define EC_CMD_PASSTHRU_OFFSET(n) (0x4000 * (n))
#define EC_CMD_PASSTHRU_MAX(n) (EC_CMD_PASSTHRU_OFFSET(n) + 0x3fff)
/*****************************************************************************/
/*
* Deprecated constants. These constants have been renamed for clarity. The
* meaning and size has not changed. Programs that use the old names should
* switch to the new names soon, as the old names may not be carried forward
* forever.
*/
#define EC_HOST_PARAM_SIZE EC_PROTO2_MAX_PARAM_SIZE
#define EC_LPC_ADDR_OLD_PARAM EC_HOST_CMD_REGION1
#define EC_OLD_PARAM_SIZE EC_HOST_CMD_REGION_SIZE
#endif /* !__ACPI__ */
#endif /* __CROS_EC_EC_COMMANDS_H */
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