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2b66bd692c
The EC_CMD_PWM_{GET,SET}_DUTY commands allow us to control a PWM that is
attached to the EC, rather than the main host SoC. The API provides
functionality-based (e.g., keyboard light, backlight) or index-based
addressing of the PWM(s). Duty cycles are represented by a 16-bit value,
where 0 maps to 0% duty cycle and U16_MAX maps to 100%. The period
cannot be controlled.
This command set is more generic than, e.g.,
EC_CMD_PWM_{GET,SET}_KEYBOARD_BACKLIGHT and could possibly used to
replace it on future products.
Let's update the command header to include the definitions.
Signed-off-by: Brian Norris <briannorris@chromium.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2615 lines
74 KiB
C
2615 lines
74 KiB
C
/*
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* Host communication command constants for ChromeOS EC
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*
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* Copyright (C) 2012 Google, Inc
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* The ChromeOS EC multi function device is used to mux all the requests
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* to the EC device for its multiple features: keyboard controller,
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* battery charging and regulator control, firmware update.
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*
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* NOTE: This file is copied verbatim from the ChromeOS EC Open Source
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* project in an attempt to make future updates easy to make.
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*/
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#ifndef __CROS_EC_COMMANDS_H
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#define __CROS_EC_COMMANDS_H
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/*
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* Current version of this protocol
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*
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* TODO(crosbug.com/p/11223): This is effectively useless; protocol is
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* determined in other ways. Remove this once the kernel code no longer
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* depends on it.
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*/
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#define EC_PROTO_VERSION 0x00000002
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/* Command version mask */
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#define EC_VER_MASK(version) (1UL << (version))
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/* I/O addresses for ACPI commands */
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#define EC_LPC_ADDR_ACPI_DATA 0x62
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#define EC_LPC_ADDR_ACPI_CMD 0x66
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/* I/O addresses for host command */
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#define EC_LPC_ADDR_HOST_DATA 0x200
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#define EC_LPC_ADDR_HOST_CMD 0x204
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/* I/O addresses for host command args and params */
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/* Protocol version 2 */
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#define EC_LPC_ADDR_HOST_ARGS 0x800 /* And 0x801, 0x802, 0x803 */
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#define EC_LPC_ADDR_HOST_PARAM 0x804 /* For version 2 params; size is
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* EC_PROTO2_MAX_PARAM_SIZE */
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/* Protocol version 3 */
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#define EC_LPC_ADDR_HOST_PACKET 0x800 /* Offset of version 3 packet */
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#define EC_LPC_HOST_PACKET_SIZE 0x100 /* Max size of version 3 packet */
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/* The actual block is 0x800-0x8ff, but some BIOSes think it's 0x880-0x8ff
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* and they tell the kernel that so we have to think of it as two parts. */
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#define EC_HOST_CMD_REGION0 0x800
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#define EC_HOST_CMD_REGION1 0x880
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#define EC_HOST_CMD_REGION_SIZE 0x80
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/* EC command register bit functions */
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#define EC_LPC_CMDR_DATA (1 << 0) /* Data ready for host to read */
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#define EC_LPC_CMDR_PENDING (1 << 1) /* Write pending to EC */
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#define EC_LPC_CMDR_BUSY (1 << 2) /* EC is busy processing a command */
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#define EC_LPC_CMDR_CMD (1 << 3) /* Last host write was a command */
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#define EC_LPC_CMDR_ACPI_BRST (1 << 4) /* Burst mode (not used) */
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#define EC_LPC_CMDR_SCI (1 << 5) /* SCI event is pending */
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#define EC_LPC_CMDR_SMI (1 << 6) /* SMI event is pending */
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#define EC_LPC_ADDR_MEMMAP 0x900
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#define EC_MEMMAP_SIZE 255 /* ACPI IO buffer max is 255 bytes */
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#define EC_MEMMAP_TEXT_MAX 8 /* Size of a string in the memory map */
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/* The offset address of each type of data in mapped memory. */
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#define EC_MEMMAP_TEMP_SENSOR 0x00 /* Temp sensors 0x00 - 0x0f */
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#define EC_MEMMAP_FAN 0x10 /* Fan speeds 0x10 - 0x17 */
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#define EC_MEMMAP_TEMP_SENSOR_B 0x18 /* More temp sensors 0x18 - 0x1f */
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#define EC_MEMMAP_ID 0x20 /* 0x20 == 'E', 0x21 == 'C' */
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#define EC_MEMMAP_ID_VERSION 0x22 /* Version of data in 0x20 - 0x2f */
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#define EC_MEMMAP_THERMAL_VERSION 0x23 /* Version of data in 0x00 - 0x1f */
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#define EC_MEMMAP_BATTERY_VERSION 0x24 /* Version of data in 0x40 - 0x7f */
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#define EC_MEMMAP_SWITCHES_VERSION 0x25 /* Version of data in 0x30 - 0x33 */
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#define EC_MEMMAP_EVENTS_VERSION 0x26 /* Version of data in 0x34 - 0x3f */
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#define EC_MEMMAP_HOST_CMD_FLAGS 0x27 /* Host cmd interface flags (8 bits) */
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/* Unused 0x28 - 0x2f */
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#define EC_MEMMAP_SWITCHES 0x30 /* 8 bits */
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/* Unused 0x31 - 0x33 */
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#define EC_MEMMAP_HOST_EVENTS 0x34 /* 32 bits */
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/* Reserve 0x38 - 0x3f for additional host event-related stuff */
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/* Battery values are all 32 bits */
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#define EC_MEMMAP_BATT_VOLT 0x40 /* Battery Present Voltage */
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#define EC_MEMMAP_BATT_RATE 0x44 /* Battery Present Rate */
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#define EC_MEMMAP_BATT_CAP 0x48 /* Battery Remaining Capacity */
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#define EC_MEMMAP_BATT_FLAG 0x4c /* Battery State, defined below */
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#define EC_MEMMAP_BATT_DCAP 0x50 /* Battery Design Capacity */
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#define EC_MEMMAP_BATT_DVLT 0x54 /* Battery Design Voltage */
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#define EC_MEMMAP_BATT_LFCC 0x58 /* Battery Last Full Charge Capacity */
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#define EC_MEMMAP_BATT_CCNT 0x5c /* Battery Cycle Count */
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/* Strings are all 8 bytes (EC_MEMMAP_TEXT_MAX) */
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#define EC_MEMMAP_BATT_MFGR 0x60 /* Battery Manufacturer String */
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#define EC_MEMMAP_BATT_MODEL 0x68 /* Battery Model Number String */
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#define EC_MEMMAP_BATT_SERIAL 0x70 /* Battery Serial Number String */
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#define EC_MEMMAP_BATT_TYPE 0x78 /* Battery Type String */
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#define EC_MEMMAP_ALS 0x80 /* ALS readings in lux (2 X 16 bits) */
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/* Unused 0x84 - 0x8f */
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#define EC_MEMMAP_ACC_STATUS 0x90 /* Accelerometer status (8 bits )*/
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/* Unused 0x91 */
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#define EC_MEMMAP_ACC_DATA 0x92 /* Accelerometer data 0x92 - 0x9f */
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#define EC_MEMMAP_GYRO_DATA 0xa0 /* Gyroscope data 0xa0 - 0xa5 */
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/* Unused 0xa6 - 0xfe (remember, 0xff is NOT part of the memmap region) */
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/* Define the format of the accelerometer mapped memory status byte. */
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#define EC_MEMMAP_ACC_STATUS_SAMPLE_ID_MASK 0x0f
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#define EC_MEMMAP_ACC_STATUS_BUSY_BIT (1 << 4)
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#define EC_MEMMAP_ACC_STATUS_PRESENCE_BIT (1 << 7)
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/* Number of temp sensors at EC_MEMMAP_TEMP_SENSOR */
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#define EC_TEMP_SENSOR_ENTRIES 16
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/*
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* Number of temp sensors at EC_MEMMAP_TEMP_SENSOR_B.
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*
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* Valid only if EC_MEMMAP_THERMAL_VERSION returns >= 2.
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*/
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#define EC_TEMP_SENSOR_B_ENTRIES 8
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/* Special values for mapped temperature sensors */
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#define EC_TEMP_SENSOR_NOT_PRESENT 0xff
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#define EC_TEMP_SENSOR_ERROR 0xfe
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#define EC_TEMP_SENSOR_NOT_POWERED 0xfd
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#define EC_TEMP_SENSOR_NOT_CALIBRATED 0xfc
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/*
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* The offset of temperature value stored in mapped memory. This allows
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* reporting a temperature range of 200K to 454K = -73C to 181C.
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*/
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#define EC_TEMP_SENSOR_OFFSET 200
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/*
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* Number of ALS readings at EC_MEMMAP_ALS
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*/
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#define EC_ALS_ENTRIES 2
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/*
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* The default value a temperature sensor will return when it is present but
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* has not been read this boot. This is a reasonable number to avoid
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* triggering alarms on the host.
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*/
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#define EC_TEMP_SENSOR_DEFAULT (296 - EC_TEMP_SENSOR_OFFSET)
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#define EC_FAN_SPEED_ENTRIES 4 /* Number of fans at EC_MEMMAP_FAN */
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#define EC_FAN_SPEED_NOT_PRESENT 0xffff /* Entry not present */
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#define EC_FAN_SPEED_STALLED 0xfffe /* Fan stalled */
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/* Battery bit flags at EC_MEMMAP_BATT_FLAG. */
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#define EC_BATT_FLAG_AC_PRESENT 0x01
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#define EC_BATT_FLAG_BATT_PRESENT 0x02
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#define EC_BATT_FLAG_DISCHARGING 0x04
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#define EC_BATT_FLAG_CHARGING 0x08
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#define EC_BATT_FLAG_LEVEL_CRITICAL 0x10
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/* Switch flags at EC_MEMMAP_SWITCHES */
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#define EC_SWITCH_LID_OPEN 0x01
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#define EC_SWITCH_POWER_BUTTON_PRESSED 0x02
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#define EC_SWITCH_WRITE_PROTECT_DISABLED 0x04
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/* Was recovery requested via keyboard; now unused. */
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#define EC_SWITCH_IGNORE1 0x08
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/* Recovery requested via dedicated signal (from servo board) */
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#define EC_SWITCH_DEDICATED_RECOVERY 0x10
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/* Was fake developer mode switch; now unused. Remove in next refactor. */
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#define EC_SWITCH_IGNORE0 0x20
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/* Host command interface flags */
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/* Host command interface supports LPC args (LPC interface only) */
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#define EC_HOST_CMD_FLAG_LPC_ARGS_SUPPORTED 0x01
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/* Host command interface supports version 3 protocol */
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#define EC_HOST_CMD_FLAG_VERSION_3 0x02
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/* Wireless switch flags */
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#define EC_WIRELESS_SWITCH_ALL ~0x00 /* All flags */
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#define EC_WIRELESS_SWITCH_WLAN 0x01 /* WLAN radio */
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#define EC_WIRELESS_SWITCH_BLUETOOTH 0x02 /* Bluetooth radio */
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#define EC_WIRELESS_SWITCH_WWAN 0x04 /* WWAN power */
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#define EC_WIRELESS_SWITCH_WLAN_POWER 0x08 /* WLAN power */
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/*
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* This header file is used in coreboot both in C and ACPI code. The ACPI code
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* is pre-processed to handle constants but the ASL compiler is unable to
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* handle actual C code so keep it separate.
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*/
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#ifndef __ACPI__
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/*
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* Define __packed if someone hasn't beat us to it. Linux kernel style
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* checking prefers __packed over __attribute__((packed)).
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*/
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#ifndef __packed
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#define __packed __attribute__((packed))
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#endif
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/* LPC command status byte masks */
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/* EC has written a byte in the data register and host hasn't read it yet */
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#define EC_LPC_STATUS_TO_HOST 0x01
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/* Host has written a command/data byte and the EC hasn't read it yet */
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#define EC_LPC_STATUS_FROM_HOST 0x02
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/* EC is processing a command */
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#define EC_LPC_STATUS_PROCESSING 0x04
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/* Last write to EC was a command, not data */
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#define EC_LPC_STATUS_LAST_CMD 0x08
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/* EC is in burst mode. Unsupported by Chrome EC, so this bit is never set */
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#define EC_LPC_STATUS_BURST_MODE 0x10
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/* SCI event is pending (requesting SCI query) */
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#define EC_LPC_STATUS_SCI_PENDING 0x20
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/* SMI event is pending (requesting SMI query) */
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#define EC_LPC_STATUS_SMI_PENDING 0x40
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/* (reserved) */
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#define EC_LPC_STATUS_RESERVED 0x80
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/*
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* EC is busy. This covers both the EC processing a command, and the host has
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* written a new command but the EC hasn't picked it up yet.
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*/
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#define EC_LPC_STATUS_BUSY_MASK \
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(EC_LPC_STATUS_FROM_HOST | EC_LPC_STATUS_PROCESSING)
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/* Host command response codes */
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enum ec_status {
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EC_RES_SUCCESS = 0,
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EC_RES_INVALID_COMMAND = 1,
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EC_RES_ERROR = 2,
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EC_RES_INVALID_PARAM = 3,
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EC_RES_ACCESS_DENIED = 4,
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EC_RES_INVALID_RESPONSE = 5,
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EC_RES_INVALID_VERSION = 6,
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EC_RES_INVALID_CHECKSUM = 7,
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EC_RES_IN_PROGRESS = 8, /* Accepted, command in progress */
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EC_RES_UNAVAILABLE = 9, /* No response available */
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EC_RES_TIMEOUT = 10, /* We got a timeout */
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EC_RES_OVERFLOW = 11, /* Table / data overflow */
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EC_RES_INVALID_HEADER = 12, /* Header contains invalid data */
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EC_RES_REQUEST_TRUNCATED = 13, /* Didn't get the entire request */
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EC_RES_RESPONSE_TOO_BIG = 14 /* Response was too big to handle */
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};
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/*
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* Host event codes. Note these are 1-based, not 0-based, because ACPI query
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* EC command uses code 0 to mean "no event pending". We explicitly specify
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* each value in the enum listing so they won't change if we delete/insert an
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* item or rearrange the list (it needs to be stable across platforms, not
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* just within a single compiled instance).
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*/
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enum host_event_code {
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EC_HOST_EVENT_LID_CLOSED = 1,
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EC_HOST_EVENT_LID_OPEN = 2,
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EC_HOST_EVENT_POWER_BUTTON = 3,
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EC_HOST_EVENT_AC_CONNECTED = 4,
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EC_HOST_EVENT_AC_DISCONNECTED = 5,
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EC_HOST_EVENT_BATTERY_LOW = 6,
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EC_HOST_EVENT_BATTERY_CRITICAL = 7,
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EC_HOST_EVENT_BATTERY = 8,
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EC_HOST_EVENT_THERMAL_THRESHOLD = 9,
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EC_HOST_EVENT_THERMAL_OVERLOAD = 10,
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EC_HOST_EVENT_THERMAL = 11,
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EC_HOST_EVENT_USB_CHARGER = 12,
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EC_HOST_EVENT_KEY_PRESSED = 13,
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/*
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* EC has finished initializing the host interface. The host can check
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* for this event following sending a EC_CMD_REBOOT_EC command to
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* determine when the EC is ready to accept subsequent commands.
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*/
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EC_HOST_EVENT_INTERFACE_READY = 14,
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/* Keyboard recovery combo has been pressed */
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EC_HOST_EVENT_KEYBOARD_RECOVERY = 15,
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/* Shutdown due to thermal overload */
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EC_HOST_EVENT_THERMAL_SHUTDOWN = 16,
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/* Shutdown due to battery level too low */
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EC_HOST_EVENT_BATTERY_SHUTDOWN = 17,
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/* Suggest that the AP throttle itself */
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EC_HOST_EVENT_THROTTLE_START = 18,
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/* Suggest that the AP resume normal speed */
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EC_HOST_EVENT_THROTTLE_STOP = 19,
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/* Hang detect logic detected a hang and host event timeout expired */
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EC_HOST_EVENT_HANG_DETECT = 20,
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/* Hang detect logic detected a hang and warm rebooted the AP */
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EC_HOST_EVENT_HANG_REBOOT = 21,
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/*
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* The high bit of the event mask is not used as a host event code. If
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* it reads back as set, then the entire event mask should be
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* considered invalid by the host. This can happen when reading the
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* raw event status via EC_MEMMAP_HOST_EVENTS but the LPC interface is
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* not initialized on the EC, or improperly configured on the host.
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*/
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EC_HOST_EVENT_INVALID = 32
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};
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/* Host event mask */
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#define EC_HOST_EVENT_MASK(event_code) (1UL << ((event_code) - 1))
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/* Arguments at EC_LPC_ADDR_HOST_ARGS */
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struct ec_lpc_host_args {
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uint8_t flags;
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uint8_t command_version;
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uint8_t data_size;
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/*
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* Checksum; sum of command + flags + command_version + data_size +
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* all params/response data bytes.
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*/
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uint8_t checksum;
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} __packed;
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/* Flags for ec_lpc_host_args.flags */
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/*
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* Args are from host. Data area at EC_LPC_ADDR_HOST_PARAM contains command
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* params.
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*
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* If EC gets a command and this flag is not set, this is an old-style command.
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* Command version is 0 and params from host are at EC_LPC_ADDR_OLD_PARAM with
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* unknown length. EC must respond with an old-style response (that is,
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* withouth setting EC_HOST_ARGS_FLAG_TO_HOST).
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*/
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#define EC_HOST_ARGS_FLAG_FROM_HOST 0x01
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/*
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* Args are from EC. Data area at EC_LPC_ADDR_HOST_PARAM contains response.
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*
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* If EC responds to a command and this flag is not set, this is an old-style
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* response. Command version is 0 and response data from EC is at
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* EC_LPC_ADDR_OLD_PARAM with unknown length.
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*/
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#define EC_HOST_ARGS_FLAG_TO_HOST 0x02
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/*****************************************************************************/
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/*
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* Byte codes returned by EC over SPI interface.
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*
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* These can be used by the AP to debug the EC interface, and to determine
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* when the EC is not in a state where it will ever get around to responding
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* to the AP.
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*
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* Example of sequence of bytes read from EC for a current good transfer:
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* 1. - - AP asserts chip select (CS#)
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* 2. EC_SPI_OLD_READY - AP sends first byte(s) of request
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* 3. - - EC starts handling CS# interrupt
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* 4. EC_SPI_RECEIVING - AP sends remaining byte(s) of request
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* 5. EC_SPI_PROCESSING - EC starts processing request; AP is clocking in
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* bytes looking for EC_SPI_FRAME_START
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* 6. - - EC finishes processing and sets up response
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* 7. EC_SPI_FRAME_START - AP reads frame byte
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* 8. (response packet) - AP reads response packet
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* 9. EC_SPI_PAST_END - Any additional bytes read by AP
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* 10 - - AP deasserts chip select
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* 11 - - EC processes CS# interrupt and sets up DMA for
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* next request
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*
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* If the AP is waiting for EC_SPI_FRAME_START and sees any value other than
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* the following byte values:
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* EC_SPI_OLD_READY
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* EC_SPI_RX_READY
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* EC_SPI_RECEIVING
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* EC_SPI_PROCESSING
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*
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* Then the EC found an error in the request, or was not ready for the request
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* and lost data. The AP should give up waiting for EC_SPI_FRAME_START,
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* because the EC is unable to tell when the AP is done sending its request.
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*/
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/*
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* Framing byte which precedes a response packet from the EC. After sending a
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* request, the AP will clock in bytes until it sees the framing byte, then
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* clock in the response packet.
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*/
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#define EC_SPI_FRAME_START 0xec
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/*
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* Padding bytes which are clocked out after the end of a response packet.
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*/
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#define EC_SPI_PAST_END 0xed
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/*
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* EC is ready to receive, and has ignored the byte sent by the AP. EC expects
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* that the AP will send a valid packet header (starting with
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* EC_COMMAND_PROTOCOL_3) in the next 32 bytes.
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*/
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#define EC_SPI_RX_READY 0xf8
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/*
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* EC has started receiving the request from the AP, but hasn't started
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* processing it yet.
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*/
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#define EC_SPI_RECEIVING 0xf9
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/* EC has received the entire request from the AP and is processing it. */
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#define EC_SPI_PROCESSING 0xfa
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/*
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* EC received bad data from the AP, such as a packet header with an invalid
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* length. EC will ignore all data until chip select deasserts.
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*/
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#define EC_SPI_RX_BAD_DATA 0xfb
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/*
|
|
* 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_host_request {
|
|
/* Struct 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;
|
|
} __packed;
|
|
|
|
#define EC_HOST_RESPONSE_VERSION 3
|
|
|
|
/* Version 3 response from EC */
|
|
struct ec_host_response {
|
|
/* Struct 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;
|
|
} __packed;
|
|
|
|
/*****************************************************************************/
|
|
/*
|
|
* Notes on commands:
|
|
*
|
|
* Each command is an 16-bit command value. Commands which take params or
|
|
* return response data specify structs for that data. If no struct 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.
|
|
*/
|
|
|
|
/*****************************************************************************/
|
|
/* General / test commands */
|
|
|
|
/*
|
|
* Get protocol version, used to deal with non-backward compatible protocol
|
|
* changes.
|
|
*/
|
|
#define EC_CMD_PROTO_VERSION 0x00
|
|
|
|
struct ec_response_proto_version {
|
|
uint32_t version;
|
|
} __packed;
|
|
|
|
/*
|
|
* Hello. This is a simple command to test the EC is responsive to
|
|
* commands.
|
|
*/
|
|
#define EC_CMD_HELLO 0x01
|
|
|
|
struct ec_params_hello {
|
|
uint32_t in_data; /* Pass anything here */
|
|
} __packed;
|
|
|
|
struct ec_response_hello {
|
|
uint32_t out_data; /* Output will be in_data + 0x01020304 */
|
|
} __packed;
|
|
|
|
/* Get version number */
|
|
#define EC_CMD_GET_VERSION 0x02
|
|
|
|
enum ec_current_image {
|
|
EC_IMAGE_UNKNOWN = 0,
|
|
EC_IMAGE_RO,
|
|
EC_IMAGE_RW
|
|
};
|
|
|
|
struct 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 */
|
|
} __packed;
|
|
|
|
/* Read test */
|
|
#define EC_CMD_READ_TEST 0x03
|
|
|
|
struct ec_params_read_test {
|
|
uint32_t offset; /* Starting value for read buffer */
|
|
uint32_t size; /* Size to read in bytes */
|
|
} __packed;
|
|
|
|
struct ec_response_read_test {
|
|
uint32_t data[32];
|
|
} __packed;
|
|
|
|
/*
|
|
* Get build information
|
|
*
|
|
* Response is null-terminated string.
|
|
*/
|
|
#define EC_CMD_GET_BUILD_INFO 0x04
|
|
|
|
/* Get chip info */
|
|
#define EC_CMD_GET_CHIP_INFO 0x05
|
|
|
|
struct ec_response_get_chip_info {
|
|
/* Null-terminated strings */
|
|
char vendor[32];
|
|
char name[32];
|
|
char revision[32]; /* Mask version */
|
|
} __packed;
|
|
|
|
/* Get board HW version */
|
|
#define EC_CMD_GET_BOARD_VERSION 0x06
|
|
|
|
struct ec_response_board_version {
|
|
uint16_t board_version; /* A monotonously incrementing number. */
|
|
} __packed;
|
|
|
|
/*
|
|
* 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 0x07
|
|
|
|
struct ec_params_read_memmap {
|
|
uint8_t offset; /* Offset in memmap (EC_MEMMAP_*) */
|
|
uint8_t size; /* Size to read in bytes */
|
|
} __packed;
|
|
|
|
/* Read versions supported for a command */
|
|
#define EC_CMD_GET_CMD_VERSIONS 0x08
|
|
|
|
struct ec_params_get_cmd_versions {
|
|
uint8_t cmd; /* Command to check */
|
|
} __packed;
|
|
|
|
struct ec_response_get_cmd_versions {
|
|
/*
|
|
* Mask of supported versions; use EC_VER_MASK() to compare with a
|
|
* desired version.
|
|
*/
|
|
uint32_t version_mask;
|
|
} __packed;
|
|
|
|
/*
|
|
* Check EC communcations 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 0x09
|
|
|
|
/* Avoid using ec_status which is for return values */
|
|
enum ec_comms_status {
|
|
EC_COMMS_STATUS_PROCESSING = 1 << 0, /* Processing cmd */
|
|
};
|
|
|
|
struct ec_response_get_comms_status {
|
|
uint32_t flags; /* Mask of enum ec_comms_status */
|
|
} __packed;
|
|
|
|
/* Fake a variety of responses, purely for testing purposes. */
|
|
#define EC_CMD_TEST_PROTOCOL 0x0a
|
|
|
|
/* Tell the EC what to send back to us. */
|
|
struct ec_params_test_protocol {
|
|
uint32_t ec_result;
|
|
uint32_t ret_len;
|
|
uint8_t buf[32];
|
|
} __packed;
|
|
|
|
/* Here it comes... */
|
|
struct ec_response_test_protocol {
|
|
uint8_t buf[32];
|
|
} __packed;
|
|
|
|
/* Get prococol information */
|
|
#define EC_CMD_GET_PROTOCOL_INFO 0x0b
|
|
|
|
/* 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_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;
|
|
} __packed;
|
|
|
|
|
|
/*****************************************************************************/
|
|
/* 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_params_get_set_value {
|
|
uint32_t flags;
|
|
uint32_t value;
|
|
} __packed;
|
|
|
|
struct ec_response_get_set_value {
|
|
uint32_t flags;
|
|
uint32_t value;
|
|
} __packed;
|
|
|
|
/* More than one command can use these structs to get/set paramters. */
|
|
#define EC_CMD_GSV_PAUSE_IN_S5 0x0c
|
|
|
|
|
|
/*****************************************************************************/
|
|
/* Flash commands */
|
|
|
|
/* Get flash info */
|
|
#define EC_CMD_FLASH_INFO 0x10
|
|
|
|
/* Version 0 returns these fields */
|
|
struct 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;
|
|
} __packed;
|
|
|
|
/* 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)
|
|
|
|
/*
|
|
* 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 struct as a sub-struct of this one.
|
|
*/
|
|
struct 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;
|
|
} __packed;
|
|
|
|
/*
|
|
* Read flash
|
|
*
|
|
* Response is params.size bytes of data.
|
|
*/
|
|
#define EC_CMD_FLASH_READ 0x11
|
|
|
|
struct ec_params_flash_read {
|
|
uint32_t offset; /* Byte offset to read */
|
|
uint32_t size; /* Size to read in bytes */
|
|
} __packed;
|
|
|
|
/* Write flash */
|
|
#define EC_CMD_FLASH_WRITE 0x12
|
|
#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_params_flash_write {
|
|
uint32_t offset; /* Byte offset to write */
|
|
uint32_t size; /* Size to write in bytes */
|
|
/* Followed by data to write */
|
|
} __packed;
|
|
|
|
/* Erase flash */
|
|
#define EC_CMD_FLASH_ERASE 0x13
|
|
|
|
struct ec_params_flash_erase {
|
|
uint32_t offset; /* Byte offset to erase */
|
|
uint32_t size; /* Size to erase in bytes */
|
|
} __packed;
|
|
|
|
/*
|
|
* 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 0x15
|
|
#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)
|
|
/* Entile flash code protected when the EC boots */
|
|
#define EC_FLASH_PROTECT_ALL_AT_BOOT (1 << 6)
|
|
|
|
struct ec_params_flash_protect {
|
|
uint32_t mask; /* Bits in flags to apply */
|
|
uint32_t flags; /* New flags to apply */
|
|
} __packed;
|
|
|
|
struct 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;
|
|
} __packed;
|
|
|
|
/*
|
|
* 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 0x16
|
|
#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 rewritable EC image */
|
|
EC_FLASH_REGION_RW,
|
|
/*
|
|
* Region which should be write-protected in the factory (a superset of
|
|
* EC_FLASH_REGION_RO)
|
|
*/
|
|
EC_FLASH_REGION_WP_RO,
|
|
/* Number of regions */
|
|
EC_FLASH_REGION_COUNT,
|
|
};
|
|
|
|
struct ec_params_flash_region_info {
|
|
uint32_t region; /* enum ec_flash_region */
|
|
} __packed;
|
|
|
|
struct ec_response_flash_region_info {
|
|
uint32_t offset;
|
|
uint32_t size;
|
|
} __packed;
|
|
|
|
/* Read/write VbNvContext */
|
|
#define EC_CMD_VBNV_CONTEXT 0x17
|
|
#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_params_vbnvcontext {
|
|
uint32_t op;
|
|
uint8_t block[EC_VBNV_BLOCK_SIZE];
|
|
} __packed;
|
|
|
|
struct ec_response_vbnvcontext {
|
|
uint8_t block[EC_VBNV_BLOCK_SIZE];
|
|
} __packed;
|
|
|
|
/*****************************************************************************/
|
|
/* PWM commands */
|
|
|
|
/* Get fan target RPM */
|
|
#define EC_CMD_PWM_GET_FAN_TARGET_RPM 0x20
|
|
|
|
struct ec_response_pwm_get_fan_rpm {
|
|
uint32_t rpm;
|
|
} __packed;
|
|
|
|
/* Set target fan RPM */
|
|
#define EC_CMD_PWM_SET_FAN_TARGET_RPM 0x21
|
|
|
|
struct ec_params_pwm_set_fan_target_rpm {
|
|
uint32_t rpm;
|
|
} __packed;
|
|
|
|
/* Get keyboard backlight */
|
|
#define EC_CMD_PWM_GET_KEYBOARD_BACKLIGHT 0x22
|
|
|
|
struct ec_response_pwm_get_keyboard_backlight {
|
|
uint8_t percent;
|
|
uint8_t enabled;
|
|
} __packed;
|
|
|
|
/* Set keyboard backlight */
|
|
#define EC_CMD_PWM_SET_KEYBOARD_BACKLIGHT 0x23
|
|
|
|
struct ec_params_pwm_set_keyboard_backlight {
|
|
uint8_t percent;
|
|
} __packed;
|
|
|
|
/* Set target fan PWM duty cycle */
|
|
#define EC_CMD_PWM_SET_FAN_DUTY 0x24
|
|
|
|
struct ec_params_pwm_set_fan_duty {
|
|
uint32_t percent;
|
|
} __packed;
|
|
|
|
#define EC_CMD_PWM_SET_DUTY 0x25
|
|
/* 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_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 */
|
|
} __packed;
|
|
|
|
#define EC_CMD_PWM_GET_DUTY 0x26
|
|
|
|
struct ec_params_pwm_get_duty {
|
|
uint8_t pwm_type; /* ec_pwm_type */
|
|
uint8_t index; /* Type-specific index, or 0 if unique */
|
|
} __packed;
|
|
|
|
struct ec_response_pwm_get_duty {
|
|
uint16_t duty; /* Duty cycle, EC_PWM_MAX_DUTY = 100% */
|
|
} __packed;
|
|
|
|
/*****************************************************************************/
|
|
/*
|
|
* 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 0x28
|
|
|
|
struct 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 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 */
|
|
} __packed;
|
|
|
|
struct 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 tap_tick_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 */
|
|
|
|
/* Color palette */
|
|
struct rgb_s color[8]; /* 0-3 are Google colors */
|
|
} __packed;
|
|
|
|
struct ec_params_lightbar {
|
|
uint8_t cmd; /* Command (see enum lightbar_command) */
|
|
union {
|
|
struct {
|
|
/* no args */
|
|
} dump, off, on, init, get_seq, get_params_v0, get_params_v1,
|
|
version, get_brightness, get_demo;
|
|
|
|
struct {
|
|
uint8_t num;
|
|
} set_brightness, seq, demo;
|
|
|
|
struct {
|
|
uint8_t ctrl, reg, value;
|
|
} reg;
|
|
|
|
struct {
|
|
uint8_t led, red, green, blue;
|
|
} set_rgb;
|
|
|
|
struct {
|
|
uint8_t led;
|
|
} get_rgb;
|
|
|
|
struct lightbar_params_v0 set_params_v0;
|
|
struct lightbar_params_v1 set_params_v1;
|
|
};
|
|
} __packed;
|
|
|
|
struct ec_response_lightbar {
|
|
union {
|
|
struct {
|
|
struct {
|
|
uint8_t reg;
|
|
uint8_t ic0;
|
|
uint8_t ic1;
|
|
} vals[23];
|
|
} dump;
|
|
|
|
struct {
|
|
uint8_t num;
|
|
} get_seq, get_brightness, get_demo;
|
|
|
|
struct lightbar_params_v0 get_params_v0;
|
|
struct lightbar_params_v1 get_params_v1;
|
|
|
|
struct {
|
|
uint32_t num;
|
|
uint32_t flags;
|
|
} version;
|
|
|
|
struct {
|
|
uint8_t red, green, blue;
|
|
} get_rgb;
|
|
|
|
struct {
|
|
/* no return params */
|
|
} off, on, init, set_brightness, seq, reg, set_rgb,
|
|
demo, set_params_v0, set_params_v1;
|
|
};
|
|
} __packed;
|
|
|
|
/* 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_NUM_CMDS
|
|
};
|
|
|
|
/*****************************************************************************/
|
|
/* LED control commands */
|
|
|
|
#define EC_CMD_LED_CONTROL 0x29
|
|
|
|
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,
|
|
|
|
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_COUNT
|
|
};
|
|
|
|
struct ec_params_led_control {
|
|
uint8_t led_id; /* Which LED to control */
|
|
uint8_t flags; /* Control flags */
|
|
|
|
uint8_t brightness[EC_LED_COLOR_COUNT];
|
|
} __packed;
|
|
|
|
struct 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];
|
|
} __packed;
|
|
|
|
/*****************************************************************************/
|
|
/* 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 0x2A
|
|
|
|
struct 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 */
|
|
} __packed;
|
|
|
|
struct 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 */
|
|
} __packed;
|
|
|
|
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_RW 0xfffffffd
|
|
|
|
/*****************************************************************************/
|
|
/*
|
|
* 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 0x2B
|
|
|
|
/* 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
|
|
* 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,
|
|
|
|
/* Number of motionsense sub-commands. */
|
|
MOTIONSENSE_NUM_CMDS
|
|
};
|
|
|
|
enum motionsensor_id {
|
|
EC_MOTION_SENSOR_ACCEL_BASE = 0,
|
|
EC_MOTION_SENSOR_ACCEL_LID = 1,
|
|
EC_MOTION_SENSOR_GYRO = 2,
|
|
|
|
/*
|
|
* Note, if more sensors are added and this count changes, the padding
|
|
* in ec_response_motion_sense dump command must be modified.
|
|
*/
|
|
EC_MOTION_SENSOR_COUNT = 3
|
|
};
|
|
|
|
/* List of motion sensor types. */
|
|
enum motionsensor_type {
|
|
MOTIONSENSE_TYPE_ACCEL = 0,
|
|
MOTIONSENSE_TYPE_GYRO = 1,
|
|
};
|
|
|
|
/* List of motion sensor locations. */
|
|
enum motionsensor_location {
|
|
MOTIONSENSE_LOC_BASE = 0,
|
|
MOTIONSENSE_LOC_LID = 1,
|
|
};
|
|
|
|
/* List of motion sensor chips. */
|
|
enum motionsensor_chip {
|
|
MOTIONSENSE_CHIP_KXCJ9 = 0,
|
|
};
|
|
|
|
/* 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)
|
|
|
|
/*
|
|
* 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
|
|
|
|
struct ec_params_motion_sense {
|
|
uint8_t cmd;
|
|
union {
|
|
/* Used for MOTIONSENSE_CMD_DUMP. */
|
|
struct {
|
|
/* no args */
|
|
} dump;
|
|
|
|
/*
|
|
* Used for MOTIONSENSE_CMD_EC_RATE and
|
|
* MOTIONSENSE_CMD_KB_WAKE_ANGLE.
|
|
*/
|
|
struct {
|
|
/* Data to set or EC_MOTION_SENSE_NO_VALUE to read. */
|
|
int16_t data;
|
|
} ec_rate, kb_wake_angle;
|
|
|
|
/* Used for MOTIONSENSE_CMD_INFO. */
|
|
struct {
|
|
/* Should be element of enum motionsensor_id. */
|
|
uint8_t sensor_num;
|
|
} info;
|
|
|
|
/*
|
|
* Used for MOTIONSENSE_CMD_SENSOR_ODR and
|
|
* MOTIONSENSE_CMD_SENSOR_RANGE.
|
|
*/
|
|
struct {
|
|
/* Should be element of enum motionsensor_id. */
|
|
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;
|
|
} sensor_odr, sensor_range;
|
|
};
|
|
} __packed;
|
|
|
|
struct ec_response_motion_sense {
|
|
union {
|
|
/* Used for MOTIONSENSE_CMD_DUMP. */
|
|
struct {
|
|
/* Flags representing the motion sensor module. */
|
|
uint8_t module_flags;
|
|
|
|
/* Flags for each sensor in enum motionsensor_id. */
|
|
uint8_t sensor_flags[EC_MOTION_SENSOR_COUNT];
|
|
|
|
/* Array of all sensor data. Each sensor is 3-axis. */
|
|
int16_t data[3*EC_MOTION_SENSOR_COUNT];
|
|
} dump;
|
|
|
|
/* Used for MOTIONSENSE_CMD_INFO. */
|
|
struct {
|
|
/* 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_EC_RATE, MOTIONSENSE_CMD_SENSOR_ODR,
|
|
* MOTIONSENSE_CMD_SENSOR_RANGE, and
|
|
* MOTIONSENSE_CMD_KB_WAKE_ANGLE.
|
|
*/
|
|
struct {
|
|
/* Current value of the parameter queried. */
|
|
int32_t ret;
|
|
} ec_rate, sensor_odr, sensor_range, kb_wake_angle;
|
|
};
|
|
} __packed;
|
|
|
|
/*****************************************************************************/
|
|
/* USB charging control commands */
|
|
|
|
/* Set USB port charging mode */
|
|
#define EC_CMD_USB_CHARGE_SET_MODE 0x30
|
|
|
|
struct ec_params_usb_charge_set_mode {
|
|
uint8_t usb_port_id;
|
|
uint8_t mode;
|
|
} __packed;
|
|
|
|
/*****************************************************************************/
|
|
/* 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 0x40
|
|
|
|
struct 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;
|
|
} __packed;
|
|
|
|
/*
|
|
* Read persistent storage
|
|
*
|
|
* Response is params.size bytes of data.
|
|
*/
|
|
#define EC_CMD_PSTORE_READ 0x41
|
|
|
|
struct ec_params_pstore_read {
|
|
uint32_t offset; /* Byte offset to read */
|
|
uint32_t size; /* Size to read in bytes */
|
|
} __packed;
|
|
|
|
/* Write persistent storage */
|
|
#define EC_CMD_PSTORE_WRITE 0x42
|
|
|
|
struct 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];
|
|
} __packed;
|
|
|
|
/*****************************************************************************/
|
|
/* Real-time clock */
|
|
|
|
/* RTC params and response structures */
|
|
struct ec_params_rtc {
|
|
uint32_t time;
|
|
} __packed;
|
|
|
|
struct ec_response_rtc {
|
|
uint32_t time;
|
|
} __packed;
|
|
|
|
/* These use ec_response_rtc */
|
|
#define EC_CMD_RTC_GET_VALUE 0x44
|
|
#define EC_CMD_RTC_GET_ALARM 0x45
|
|
|
|
/* These all use ec_params_rtc */
|
|
#define EC_CMD_RTC_SET_VALUE 0x46
|
|
#define EC_CMD_RTC_SET_ALARM 0x47
|
|
|
|
/*****************************************************************************/
|
|
/* 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 0x48
|
|
#define EC_CMD_PORT80_READ 0x48
|
|
|
|
enum ec_port80_subcmd {
|
|
EC_PORT80_GET_INFO = 0,
|
|
EC_PORT80_READ_BUFFER,
|
|
};
|
|
|
|
struct ec_params_port80_read {
|
|
uint16_t subcmd;
|
|
union {
|
|
struct {
|
|
uint32_t offset;
|
|
uint32_t num_entries;
|
|
} read_buffer;
|
|
};
|
|
} __packed;
|
|
|
|
struct ec_response_port80_read {
|
|
union {
|
|
struct {
|
|
uint32_t writes;
|
|
uint32_t history_size;
|
|
uint32_t last_boot;
|
|
} get_info;
|
|
struct {
|
|
uint16_t codes[EC_PORT80_SIZE_MAX];
|
|
} data;
|
|
};
|
|
} __packed;
|
|
|
|
struct ec_response_port80_last_boot {
|
|
uint16_t code;
|
|
} __packed;
|
|
|
|
/*****************************************************************************/
|
|
/* 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 0x50
|
|
#define EC_CMD_THERMAL_GET_THRESHOLD 0x51
|
|
|
|
/* 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_params_thermal_set_threshold {
|
|
uint8_t sensor_type;
|
|
uint8_t threshold_id;
|
|
uint16_t value;
|
|
} __packed;
|
|
|
|
/* Version 0 - get */
|
|
struct ec_params_thermal_get_threshold {
|
|
uint8_t sensor_type;
|
|
uint8_t threshold_id;
|
|
} __packed;
|
|
|
|
struct ec_response_thermal_get_threshold {
|
|
uint16_t value;
|
|
} __packed;
|
|
|
|
|
|
/* 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.
|
|
*/
|
|
struct ec_thermal_config {
|
|
uint32_t temp_host[EC_TEMP_THRESH_COUNT]; /* levels of hotness */
|
|
uint32_t temp_fan_off; /* no active cooling needed */
|
|
uint32_t temp_fan_max; /* max active cooling needed */
|
|
} __packed;
|
|
|
|
/* Version 1 - get config for one sensor. */
|
|
struct ec_params_thermal_get_threshold_v1 {
|
|
uint32_t sensor_num;
|
|
} __packed;
|
|
/* This returns a struct ec_thermal_config */
|
|
|
|
/* Version 1 - set config for one sensor.
|
|
* Use read-modify-write for best results! */
|
|
struct ec_params_thermal_set_threshold_v1 {
|
|
uint32_t sensor_num;
|
|
struct ec_thermal_config cfg;
|
|
} __packed;
|
|
/* This returns no data */
|
|
|
|
/****************************************************************************/
|
|
|
|
/* Toggle automatic fan control */
|
|
#define EC_CMD_THERMAL_AUTO_FAN_CTRL 0x52
|
|
|
|
/* Get TMP006 calibration data */
|
|
#define EC_CMD_TMP006_GET_CALIBRATION 0x53
|
|
|
|
struct ec_params_tmp006_get_calibration {
|
|
uint8_t index;
|
|
} __packed;
|
|
|
|
struct ec_response_tmp006_get_calibration {
|
|
float s0;
|
|
float b0;
|
|
float b1;
|
|
float b2;
|
|
} __packed;
|
|
|
|
/* Set TMP006 calibration data */
|
|
#define EC_CMD_TMP006_SET_CALIBRATION 0x54
|
|
|
|
struct ec_params_tmp006_set_calibration {
|
|
uint8_t index;
|
|
uint8_t reserved[3]; /* Reserved; set 0 */
|
|
float s0;
|
|
float b0;
|
|
float b1;
|
|
float b2;
|
|
} __packed;
|
|
|
|
/* Read raw TMP006 data */
|
|
#define EC_CMD_TMP006_GET_RAW 0x55
|
|
|
|
struct ec_params_tmp006_get_raw {
|
|
uint8_t index;
|
|
} __packed;
|
|
|
|
struct 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.
|
|
*/
|
|
#define EC_CMD_MKBP_STATE 0x60
|
|
|
|
/* Provide information about the matrix : number of rows and columns */
|
|
#define EC_CMD_MKBP_INFO 0x61
|
|
|
|
struct ec_response_mkbp_info {
|
|
uint32_t rows;
|
|
uint32_t cols;
|
|
uint8_t switches;
|
|
} __packed;
|
|
|
|
/* Simulate key press */
|
|
#define EC_CMD_MKBP_SIMULATE_KEY 0x62
|
|
|
|
struct ec_params_mkbp_simulate_key {
|
|
uint8_t col;
|
|
uint8_t row;
|
|
uint8_t pressed;
|
|
} __packed;
|
|
|
|
/* Configure keyboard scanning */
|
|
#define EC_CMD_MKBP_SET_CONFIG 0x64
|
|
#define EC_CMD_MKBP_GET_CONFIG 0x65
|
|
|
|
/* 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 */
|
|
struct 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;
|
|
} __packed;
|
|
|
|
struct ec_params_mkbp_set_config {
|
|
struct ec_mkbp_config config;
|
|
} __packed;
|
|
|
|
struct ec_response_mkbp_get_config {
|
|
struct ec_mkbp_config config;
|
|
} __packed;
|
|
|
|
/* Run the key scan emulation */
|
|
#define EC_CMD_KEYSCAN_SEQ_CTRL 0x66
|
|
|
|
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_collect_item {
|
|
uint8_t flags; /* some flags (enum ec_collect_flags) */
|
|
};
|
|
|
|
struct ec_params_keyscan_seq_ctrl {
|
|
uint8_t cmd; /* Command to send (enum ec_keyscan_seq_cmd) */
|
|
union {
|
|
struct {
|
|
uint8_t active; /* still active */
|
|
uint8_t num_items; /* number of items */
|
|
/* Current item being presented */
|
|
uint8_t cur_item;
|
|
} status;
|
|
struct {
|
|
/*
|
|
* Absolute time for this scan, measured from the
|
|
* start of the sequence.
|
|
*/
|
|
uint32_t time_us;
|
|
uint8_t scan[0]; /* keyscan data */
|
|
} add;
|
|
struct {
|
|
uint8_t start_item; /* First item to return */
|
|
uint8_t num_items; /* Number of items to return */
|
|
} collect;
|
|
};
|
|
} __packed;
|
|
|
|
struct ec_result_keyscan_seq_ctrl {
|
|
union {
|
|
struct {
|
|
uint8_t num_items; /* Number of items */
|
|
/* Data for each item */
|
|
struct ec_collect_item item[0];
|
|
} collect;
|
|
};
|
|
} __packed;
|
|
|
|
/*****************************************************************************/
|
|
/* Temperature sensor commands */
|
|
|
|
/* Read temperature sensor info */
|
|
#define EC_CMD_TEMP_SENSOR_GET_INFO 0x70
|
|
|
|
struct ec_params_temp_sensor_get_info {
|
|
uint8_t id;
|
|
} __packed;
|
|
|
|
struct ec_response_temp_sensor_get_info {
|
|
char sensor_name[32];
|
|
uint8_t sensor_type;
|
|
} __packed;
|
|
|
|
/*****************************************************************************/
|
|
|
|
/*
|
|
* 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 */
|
|
|
|
/*
|
|
* Host event mask params and response structures, shared by all of the host
|
|
* event commands below.
|
|
*/
|
|
struct ec_params_host_event_mask {
|
|
uint32_t mask;
|
|
} __packed;
|
|
|
|
struct ec_response_host_event_mask {
|
|
uint32_t mask;
|
|
} __packed;
|
|
|
|
/* These all use ec_response_host_event_mask */
|
|
#define EC_CMD_HOST_EVENT_GET_B 0x87
|
|
#define EC_CMD_HOST_EVENT_GET_SMI_MASK 0x88
|
|
#define EC_CMD_HOST_EVENT_GET_SCI_MASK 0x89
|
|
#define EC_CMD_HOST_EVENT_GET_WAKE_MASK 0x8d
|
|
|
|
/* These all use ec_params_host_event_mask */
|
|
#define EC_CMD_HOST_EVENT_SET_SMI_MASK 0x8a
|
|
#define EC_CMD_HOST_EVENT_SET_SCI_MASK 0x8b
|
|
#define EC_CMD_HOST_EVENT_CLEAR 0x8c
|
|
#define EC_CMD_HOST_EVENT_SET_WAKE_MASK 0x8e
|
|
#define EC_CMD_HOST_EVENT_CLEAR_B 0x8f
|
|
|
|
/*****************************************************************************/
|
|
/* Switch commands */
|
|
|
|
/* Enable/disable LCD backlight */
|
|
#define EC_CMD_SWITCH_ENABLE_BKLIGHT 0x90
|
|
|
|
struct ec_params_switch_enable_backlight {
|
|
uint8_t enabled;
|
|
} __packed;
|
|
|
|
/* Enable/disable WLAN/Bluetooth */
|
|
#define EC_CMD_SWITCH_ENABLE_WIRELESS 0x91
|
|
#define EC_VER_SWITCH_ENABLE_WIRELESS 1
|
|
|
|
/* Version 0 params; no response */
|
|
struct ec_params_switch_enable_wireless_v0 {
|
|
uint8_t enabled;
|
|
} __packed;
|
|
|
|
/* Version 1 params */
|
|
struct 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;
|
|
} __packed;
|
|
|
|
/* Version 1 response */
|
|
struct ec_response_switch_enable_wireless_v1 {
|
|
/* Flags to enable now */
|
|
uint8_t now_flags;
|
|
|
|
/* Flags to leave enabled in S3 */
|
|
uint8_t suspend_flags;
|
|
} __packed;
|
|
|
|
/*****************************************************************************/
|
|
/* GPIO commands. Only available on EC if write protect has been disabled. */
|
|
|
|
/* Set GPIO output value */
|
|
#define EC_CMD_GPIO_SET 0x92
|
|
|
|
struct ec_params_gpio_set {
|
|
char name[32];
|
|
uint8_t val;
|
|
} __packed;
|
|
|
|
/* Get GPIO value */
|
|
#define EC_CMD_GPIO_GET 0x93
|
|
|
|
/* Version 0 of input params and response */
|
|
struct ec_params_gpio_get {
|
|
char name[32];
|
|
} __packed;
|
|
struct ec_response_gpio_get {
|
|
uint8_t val;
|
|
} __packed;
|
|
|
|
/* Version 1 of input params and response */
|
|
struct ec_params_gpio_get_v1 {
|
|
uint8_t subcmd;
|
|
union {
|
|
struct {
|
|
char name[32];
|
|
} get_value_by_name;
|
|
struct {
|
|
uint8_t index;
|
|
} get_info;
|
|
};
|
|
} __packed;
|
|
|
|
struct ec_response_gpio_get_v1 {
|
|
union {
|
|
struct {
|
|
uint8_t val;
|
|
} get_value_by_name, get_count;
|
|
struct {
|
|
uint8_t val;
|
|
char name[32];
|
|
uint32_t flags;
|
|
} get_info;
|
|
};
|
|
} __packed;
|
|
|
|
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. */
|
|
|
|
/*
|
|
* TODO(crosbug.com/p/23570): These commands are deprecated, and will be
|
|
* removed soon. Use EC_CMD_I2C_XFER instead.
|
|
*/
|
|
|
|
/* Read I2C bus */
|
|
#define EC_CMD_I2C_READ 0x94
|
|
|
|
struct 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;
|
|
} __packed;
|
|
struct ec_response_i2c_read {
|
|
uint16_t data;
|
|
} __packed;
|
|
|
|
/* Write I2C bus */
|
|
#define EC_CMD_I2C_WRITE 0x95
|
|
|
|
struct 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;
|
|
} __packed;
|
|
|
|
/*****************************************************************************/
|
|
/* 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 0x96
|
|
#define EC_VER_CHARGE_CONTROL 1
|
|
|
|
enum ec_charge_control_mode {
|
|
CHARGE_CONTROL_NORMAL = 0,
|
|
CHARGE_CONTROL_IDLE,
|
|
CHARGE_CONTROL_DISCHARGE,
|
|
};
|
|
|
|
struct ec_params_charge_control {
|
|
uint32_t mode; /* enum charge_control_mode */
|
|
} __packed;
|
|
|
|
/*****************************************************************************/
|
|
/* 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 0x97
|
|
|
|
/*
|
|
* Read next chunk of data from saved snapshot.
|
|
*
|
|
* Response is null-terminated string. Empty string, if there is no more
|
|
* remaining output.
|
|
*/
|
|
#define EC_CMD_CONSOLE_READ 0x98
|
|
|
|
/*****************************************************************************/
|
|
|
|
/*
|
|
* 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 0x99
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|
|
|
#define EC_BATTERY_CUTOFF_FLAG_AT_SHUTDOWN (1 << 0)
|
|
|
|
struct ec_params_battery_cutoff {
|
|
uint8_t flags;
|
|
} __packed;
|
|
|
|
/*****************************************************************************/
|
|
/* USB port mux control. */
|
|
|
|
/*
|
|
* Switch USB mux or return to automatic switching.
|
|
*/
|
|
#define EC_CMD_USB_MUX 0x9a
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|
|
|
struct ec_params_usb_mux {
|
|
uint8_t mux;
|
|
} __packed;
|
|
|
|
/*****************************************************************************/
|
|
/* 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 0x9b
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|
|
|
struct ec_params_ldo_set {
|
|
uint8_t index;
|
|
uint8_t state;
|
|
} __packed;
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|
|
|
/*
|
|
* Get LDO state.
|
|
*/
|
|
#define EC_CMD_LDO_GET 0x9c
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|
|
|
struct ec_params_ldo_get {
|
|
uint8_t index;
|
|
} __packed;
|
|
|
|
struct ec_response_ldo_get {
|
|
uint8_t state;
|
|
} __packed;
|
|
|
|
/*****************************************************************************/
|
|
/* Power info. */
|
|
|
|
/*
|
|
* Get power info.
|
|
*/
|
|
#define EC_CMD_POWER_INFO 0x9d
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|
|
|
struct 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;
|
|
} __packed;
|
|
|
|
/*****************************************************************************/
|
|
/* I2C passthru command */
|
|
|
|
#define EC_CMD_I2C_PASSTHRU 0x9e
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|
|
|
/* Read data; if not present, message is a write */
|
|
#define EC_I2C_FLAG_READ (1 << 15)
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|
|
|
/* Mask for address */
|
|
#define EC_I2C_ADDR_MASK 0x3ff
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|
|
|
#define EC_I2C_STATUS_NAK (1 << 0) /* Transfer was not acknowledged */
|
|
#define EC_I2C_STATUS_TIMEOUT (1 << 1) /* Timeout during transfer */
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|
|
|
/* Any error */
|
|
#define EC_I2C_STATUS_ERROR (EC_I2C_STATUS_NAK | EC_I2C_STATUS_TIMEOUT)
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|
|
|
struct 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 */
|
|
} __packed;
|
|
|
|
struct 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 */
|
|
} __packed;
|
|
|
|
struct 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 */
|
|
} __packed;
|
|
|
|
/*****************************************************************************/
|
|
/* Power button hang detect */
|
|
|
|
#define EC_CMD_HANG_DETECT 0x9f
|
|
|
|
/* 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_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;
|
|
} __packed;
|
|
|
|
/*****************************************************************************/
|
|
/* 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 0xa0
|
|
|
|
/* 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 */
|
|
/* 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,
|
|
|
|
/* Other custom param ranges go here... */
|
|
};
|
|
|
|
struct ec_params_charge_state {
|
|
uint8_t cmd; /* enum charge_state_command */
|
|
union {
|
|
struct {
|
|
/* no args */
|
|
} get_state;
|
|
|
|
struct {
|
|
uint32_t param; /* enum charge_state_param */
|
|
} get_param;
|
|
|
|
struct {
|
|
uint32_t param; /* param to set */
|
|
uint32_t value; /* value to set */
|
|
} set_param;
|
|
};
|
|
} __packed;
|
|
|
|
struct ec_response_charge_state {
|
|
union {
|
|
struct {
|
|
int ac;
|
|
int chg_voltage;
|
|
int chg_current;
|
|
int chg_input_current;
|
|
int batt_state_of_charge;
|
|
} get_state;
|
|
|
|
struct {
|
|
uint32_t value;
|
|
} get_param;
|
|
struct {
|
|
/* no return values */
|
|
} set_param;
|
|
};
|
|
} __packed;
|
|
|
|
|
|
/*
|
|
* Set maximum battery charging current.
|
|
*/
|
|
#define EC_CMD_CHARGE_CURRENT_LIMIT 0xa1
|
|
|
|
struct ec_params_current_limit {
|
|
uint32_t limit; /* in mA */
|
|
} __packed;
|
|
|
|
/*
|
|
* Set maximum external power current.
|
|
*/
|
|
#define EC_CMD_EXT_POWER_CURRENT_LIMIT 0xa2
|
|
|
|
struct ec_params_ext_power_current_limit {
|
|
uint32_t limit; /* in mA */
|
|
} __packed;
|
|
|
|
/*****************************************************************************/
|
|
/* Smart battery pass-through */
|
|
|
|
/* Get / Set 16-bit smart battery registers */
|
|
#define EC_CMD_SB_READ_WORD 0xb0
|
|
#define EC_CMD_SB_WRITE_WORD 0xb1
|
|
|
|
/* Get / Set string smart battery parameters
|
|
* formatted as SMBUS "block".
|
|
*/
|
|
#define EC_CMD_SB_READ_BLOCK 0xb2
|
|
#define EC_CMD_SB_WRITE_BLOCK 0xb3
|
|
|
|
struct ec_params_sb_rd {
|
|
uint8_t reg;
|
|
} __packed;
|
|
|
|
struct ec_response_sb_rd_word {
|
|
uint16_t value;
|
|
} __packed;
|
|
|
|
struct ec_params_sb_wr_word {
|
|
uint8_t reg;
|
|
uint16_t value;
|
|
} __packed;
|
|
|
|
struct ec_response_sb_rd_block {
|
|
uint8_t data[32];
|
|
} __packed;
|
|
|
|
struct ec_params_sb_wr_block {
|
|
uint8_t reg;
|
|
uint16_t data[32];
|
|
} __packed;
|
|
|
|
/*****************************************************************************/
|
|
/* 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 0xb4
|
|
|
|
enum ec_battery_vendor_param_mode {
|
|
BATTERY_VENDOR_PARAM_MODE_GET = 0,
|
|
BATTERY_VENDOR_PARAM_MODE_SET,
|
|
};
|
|
|
|
struct ec_params_battery_vendor_param {
|
|
uint32_t param;
|
|
uint32_t value;
|
|
uint8_t mode;
|
|
} __packed;
|
|
|
|
struct ec_response_battery_vendor_param {
|
|
uint32_t value;
|
|
} __packed;
|
|
|
|
/*****************************************************************************/
|
|
/* 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 0xd2
|
|
|
|
/* 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 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 */
|
|
};
|
|
|
|
/* 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 */
|
|
|
|
struct ec_params_reboot_ec {
|
|
uint8_t cmd; /* enum ec_reboot_cmd */
|
|
uint8_t flags; /* See EC_REBOOT_FLAG_* */
|
|
} __packed;
|
|
|
|
/*
|
|
* Get information on last EC panic.
|
|
*
|
|
* Returns variable-length platform-dependent panic information. See panic.h
|
|
* for details.
|
|
*/
|
|
#define EC_CMD_GET_PANIC_INFO 0xd3
|
|
|
|
/*****************************************************************************/
|
|
/*
|
|
* 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 0x80
|
|
|
|
/*
|
|
* 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 0x81
|
|
|
|
/*
|
|
* 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 0x84
|
|
|
|
/* 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
|
|
|
|
/* Current version of ACPI memory address space */
|
|
#define EC_ACPI_MEM_VERSION_CURRENT 1
|
|
|
|
|
|
/*****************************************************************************/
|
|
/*
|
|
* 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 0xd1 /* 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 0xdb
|
|
|
|
/*
|
|
* 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 0xdc
|
|
|
|
#endif /* !__ACPI__ */
|
|
|
|
/*****************************************************************************/
|
|
/*
|
|
* PD commands
|
|
*
|
|
* These commands are for PD MCU communication.
|
|
*/
|
|
|
|
/* EC to PD MCU exchange status command */
|
|
#define EC_CMD_PD_EXCHANGE_STATUS 0x100
|
|
|
|
/* Status of EC being sent to PD */
|
|
struct ec_params_pd_status {
|
|
int8_t batt_soc; /* battery state of charge */
|
|
} __packed;
|
|
|
|
/* Status of PD being sent back to EC */
|
|
struct ec_response_pd_status {
|
|
int8_t status; /* PD MCU status */
|
|
uint32_t curr_lim_ma; /* input current limit */
|
|
} __packed;
|
|
|
|
/* Set USB type-C port role and muxes */
|
|
#define EC_CMD_USB_PD_CONTROL 0x101
|
|
|
|
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,
|
|
};
|
|
|
|
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,
|
|
};
|
|
|
|
struct ec_params_usb_pd_control {
|
|
uint8_t port;
|
|
uint8_t role;
|
|
uint8_t mux;
|
|
} __packed;
|
|
|
|
/*****************************************************************************/
|
|
/*
|
|
* 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 /* __CROS_EC_COMMANDS_H */
|