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Subject[PATCH] mfd: cros: Update EC protocol to match current EC code
From
Chromebook Embedded Controller protocol is defined in the kernel at
cros_ec_commands.h.
The source of trust for the EC protocol is at
https://chromium.googlesource.com/chromiumos/platform/ec/+/master/include/ec_commands.h

Only needed changes have been picked up from this file to the kernel
include file leading to gaps between the upstream version and what the
latest ECs can do.

Fill the gaps to ease future integrations. Changes from the original
files is header/footer for license and include files for alignment.

Check this include file works on ChomeOS kernel 4.14 and 4.19 on eve.

Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
---
include/linux/mfd/cros_ec_commands.h | 3627 +++++++++++++++++++++-----
1 file changed, 2935 insertions(+), 692 deletions(-)

diff --git a/include/linux/mfd/cros_ec_commands.h b/include/linux/mfd/cros_ec_commands.h
index fc91082d4c35..ea25e1644d23 100644
--- a/include/linux/mfd/cros_ec_commands.h
+++ b/include/linux/mfd/cros_ec_commands.h
@@ -1,28 +1,41 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Host communication command constants for ChromeOS EC
*
* Copyright (C) 2012 Google, Inc
*
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * The ChromeOS EC multi function device is used to mux all the requests
- * to the EC device for its multiple features: keyboard controller,
- * battery charging and regulator control, firmware update.
- *
* NOTE: This file is copied verbatim from the ChromeOS EC Open Source
* project in an attempt to make future updates easy to make.
*/

+/* Host communication command constants for Chrome EC */
+
#ifndef __CROS_EC_COMMANDS_H
#define __CROS_EC_COMMANDS_H

+#if !defined(__ACPI__) && !defined(__KERNEL__)
+#include <stdint.h>
+#endif
+
+#ifdef __cplusplus
+extern "C"{
+#endif
+
+/*
+ * Include common.h for CONFIG_HOSTCMD_ALIGNED, if it's defined. This
+ * generates more efficient code for accessing request/response structures on
+ * ARM Cortex-M if the structures are guaranteed 32-bit aligned.
+ */
+#ifdef CHROMIUM_EC
+#include "common.h"
+#endif
+
+#ifdef __KERNEL__
+#define BUILD_ASSERT(_cond)
+#else
+#include "compile_time_macros.h"
+#endif
+
/*
* Current version of this protocol
*
@@ -85,13 +98,15 @@
/* Unused 0x28 - 0x2f */
#define EC_MEMMAP_SWITCHES 0x30 /* 8 bits */
/* Unused 0x31 - 0x33 */
-#define EC_MEMMAP_HOST_EVENTS 0x34 /* 32 bits */
-/* Reserve 0x38 - 0x3f for additional host event-related stuff */
-/* Battery values are all 32 bits */
+#define EC_MEMMAP_HOST_EVENTS 0x34 /* 64 bits */
+/* Battery values are all 32 bits, unless otherwise noted. */
#define EC_MEMMAP_BATT_VOLT 0x40 /* Battery Present Voltage */
#define EC_MEMMAP_BATT_RATE 0x44 /* Battery Present Rate */
#define EC_MEMMAP_BATT_CAP 0x48 /* Battery Remaining Capacity */
-#define EC_MEMMAP_BATT_FLAG 0x4c /* Battery State, defined below */
+#define EC_MEMMAP_BATT_FLAG 0x4c /* Battery State, see below (8-bit) */
+#define EC_MEMMAP_BATT_COUNT 0x4d /* Battery Count (8-bit) */
+#define EC_MEMMAP_BATT_INDEX 0x4e /* Current Battery Data Index (8-bit) */
+/* Unused 0x4f */
#define EC_MEMMAP_BATT_DCAP 0x50 /* Battery Design Capacity */
#define EC_MEMMAP_BATT_DVLT 0x54 /* Battery Design Voltage */
#define EC_MEMMAP_BATT_LFCC 0x58 /* Battery Last Full Charge Capacity */
@@ -105,10 +120,19 @@
/* Unused 0x84 - 0x8f */
#define EC_MEMMAP_ACC_STATUS 0x90 /* Accelerometer status (8 bits )*/
/* Unused 0x91 */
-#define EC_MEMMAP_ACC_DATA 0x92 /* Accelerometer data 0x92 - 0x9f */
+#define EC_MEMMAP_ACC_DATA 0x92 /* Accelerometers data 0x92 - 0x9f */
+/* 0x92: Lid Angle if available, LID_ANGLE_UNRELIABLE otherwise */
+/* 0x94 - 0x99: 1st Accelerometer */
+/* 0x9a - 0x9f: 2nd Accelerometer */
#define EC_MEMMAP_GYRO_DATA 0xa0 /* Gyroscope data 0xa0 - 0xa5 */
-/* Unused 0xa6 - 0xfe (remember, 0xff is NOT part of the memmap region) */
+/* Unused 0xa6 - 0xdf */

+/*
+ * ACPI is unable to access memory mapped data at or above this offset due to
+ * limitations of the ACPI protocol. Do not place data in the range 0xe0 - 0xfe
+ * which might be needed by ACPI.
+ */
+#define EC_MEMMAP_NO_ACPI 0xe0

/* Define the format of the accelerometer mapped memory status byte. */
#define EC_MEMMAP_ACC_STATUS_SAMPLE_ID_MASK 0x0f
@@ -157,6 +181,8 @@
#define EC_BATT_FLAG_DISCHARGING 0x04
#define EC_BATT_FLAG_CHARGING 0x08
#define EC_BATT_FLAG_LEVEL_CRITICAL 0x10
+/* Set if some of the static/dynamic data is invalid (or outdated). */
+#define EC_BATT_FLAG_INVALID_DATA 0x20

/* Switch flags at EC_MEMMAP_SWITCHES */
#define EC_SWITCH_LID_OPEN 0x01
@@ -182,6 +208,194 @@
#define EC_WIRELESS_SWITCH_WWAN 0x04 /* WWAN power */
#define EC_WIRELESS_SWITCH_WLAN_POWER 0x08 /* WLAN power */

+/*****************************************************************************/
+/*
+ * ACPI commands
+ *
+ * These are valid ONLY on the ACPI command/data port.
+ */
+
+/*
+ * ACPI Read Embedded Controller
+ *
+ * This reads from ACPI memory space on the EC (EC_ACPI_MEM_*).
+ *
+ * Use the following sequence:
+ *
+ * - Write EC_CMD_ACPI_READ to EC_LPC_ADDR_ACPI_CMD
+ * - Wait for EC_LPC_CMDR_PENDING bit to clear
+ * - Write address to EC_LPC_ADDR_ACPI_DATA
+ * - Wait for EC_LPC_CMDR_DATA bit to set
+ * - Read value from EC_LPC_ADDR_ACPI_DATA
+ */
+#define EC_CMD_ACPI_READ 0x0080
+
+/*
+ * ACPI Write Embedded Controller
+ *
+ * This reads from ACPI memory space on the EC (EC_ACPI_MEM_*).
+ *
+ * Use the following sequence:
+ *
+ * - Write EC_CMD_ACPI_WRITE to EC_LPC_ADDR_ACPI_CMD
+ * - Wait for EC_LPC_CMDR_PENDING bit to clear
+ * - Write address to EC_LPC_ADDR_ACPI_DATA
+ * - Wait for EC_LPC_CMDR_PENDING bit to clear
+ * - Write value to EC_LPC_ADDR_ACPI_DATA
+ */
+#define EC_CMD_ACPI_WRITE 0x0081
+
+/*
+ * ACPI Burst Enable Embedded Controller
+ *
+ * This enables burst mode on the EC to allow the host to issue several
+ * commands back-to-back. While in this mode, writes to mapped multi-byte
+ * data are locked out to ensure data consistency.
+ */
+#define EC_CMD_ACPI_BURST_ENABLE 0x0082
+
+/*
+ * ACPI Burst Disable Embedded Controller
+ *
+ * This disables burst mode on the EC and stops preventing EC writes to mapped
+ * multi-byte data.
+ */
+#define EC_CMD_ACPI_BURST_DISABLE 0x0083
+
+/*
+ * ACPI Query Embedded Controller
+ *
+ * This clears the lowest-order bit in the currently pending host events, and
+ * sets the result code to the 1-based index of the bit (event 0x00000001 = 1,
+ * event 0x80000000 = 32), or 0 if no event was pending.
+ */
+#define EC_CMD_ACPI_QUERY_EVENT 0x0084
+
+/* Valid addresses in ACPI memory space, for read/write commands */
+
+/* Memory space version; set to EC_ACPI_MEM_VERSION_CURRENT */
+#define EC_ACPI_MEM_VERSION 0x00
+/*
+ * Test location; writing value here updates test compliment byte to (0xff -
+ * value).
+ */
+#define EC_ACPI_MEM_TEST 0x01
+/* Test compliment; writes here are ignored. */
+#define EC_ACPI_MEM_TEST_COMPLIMENT 0x02
+
+/* Keyboard backlight brightness percent (0 - 100) */
+#define EC_ACPI_MEM_KEYBOARD_BACKLIGHT 0x03
+/* DPTF Target Fan Duty (0-100, 0xff for auto/none) */
+#define EC_ACPI_MEM_FAN_DUTY 0x04
+
+/*
+ * DPTF temp thresholds. Any of the EC's temp sensors can have up to two
+ * independent thresholds attached to them. The current value of the ID
+ * register determines which sensor is affected by the THRESHOLD and COMMIT
+ * registers. The THRESHOLD register uses the same EC_TEMP_SENSOR_OFFSET scheme
+ * as the memory-mapped sensors. The COMMIT register applies those settings.
+ *
+ * The spec does not mandate any way to read back the threshold settings
+ * themselves, but when a threshold is crossed the AP needs a way to determine
+ * which sensor(s) are responsible. Each reading of the ID register clears and
+ * returns one sensor ID that has crossed one of its threshold (in either
+ * direction) since the last read. A value of 0xFF means "no new thresholds
+ * have tripped". Setting or enabling the thresholds for a sensor will clear
+ * the unread event count for that sensor.
+ */
+#define EC_ACPI_MEM_TEMP_ID 0x05
+#define EC_ACPI_MEM_TEMP_THRESHOLD 0x06
+#define EC_ACPI_MEM_TEMP_COMMIT 0x07
+/*
+ * Here are the bits for the COMMIT register:
+ * bit 0 selects the threshold index for the chosen sensor (0/1)
+ * bit 1 enables/disables the selected threshold (0 = off, 1 = on)
+ * Each write to the commit register affects one threshold.
+ */
+#define EC_ACPI_MEM_TEMP_COMMIT_SELECT_MASK (1 << 0)
+#define EC_ACPI_MEM_TEMP_COMMIT_ENABLE_MASK (1 << 1)
+/*
+ * Example:
+ *
+ * Set the thresholds for sensor 2 to 50 C and 60 C:
+ * write 2 to [0x05] -- select temp sensor 2
+ * write 0x7b to [0x06] -- C_TO_K(50) - EC_TEMP_SENSOR_OFFSET
+ * write 0x2 to [0x07] -- enable threshold 0 with this value
+ * write 0x85 to [0x06] -- C_TO_K(60) - EC_TEMP_SENSOR_OFFSET
+ * write 0x3 to [0x07] -- enable threshold 1 with this value
+ *
+ * Disable the 60 C threshold, leaving the 50 C threshold unchanged:
+ * write 2 to [0x05] -- select temp sensor 2
+ * write 0x1 to [0x07] -- disable threshold 1
+ */
+
+/* DPTF battery charging current limit */
+#define EC_ACPI_MEM_CHARGING_LIMIT 0x08
+
+/* Charging limit is specified in 64 mA steps */
+#define EC_ACPI_MEM_CHARGING_LIMIT_STEP_MA 64
+/* Value to disable DPTF battery charging limit */
+#define EC_ACPI_MEM_CHARGING_LIMIT_DISABLED 0xff
+
+/*
+ * Report device orientation
+ * Bits Definition
+ * 3:1 Device DPTF Profile Number (DDPN)
+ * 0 = Reserved for backward compatibility (indicates no valid
+ * profile number. Host should fall back to using TBMD).
+ * 1..7 = DPTF Profile number to indicate to host which table needs
+ * to be loaded.
+ * 0 Tablet Mode Device Indicator (TBMD)
+ */
+#define EC_ACPI_MEM_DEVICE_ORIENTATION 0x09
+#define EC_ACPI_MEM_TBMD_SHIFT 0
+#define EC_ACPI_MEM_TBMD_MASK 0x1
+#define EC_ACPI_MEM_DDPN_SHIFT 1
+#define EC_ACPI_MEM_DDPN_MASK 0x7
+
+/*
+ * Report device features. Uses the same format as the host command, except:
+ *
+ * bit 0 (EC_FEATURE_LIMITED) changes meaning from "EC code has a limited set
+ * of features", which is of limited interest when the system is already
+ * interpreting ACPI bytecode, to "EC_FEATURES[0-7] is not supported". Since
+ * these are supported, it defaults to 0.
+ * This allows detecting the presence of this field since older versions of
+ * the EC codebase would simply return 0xff to that unknown address. Check
+ * FEATURES0 != 0xff (or FEATURES0[0] == 0) to make sure that the other bits
+ * are valid.
+ */
+#define EC_ACPI_MEM_DEVICE_FEATURES0 0x0a
+#define EC_ACPI_MEM_DEVICE_FEATURES1 0x0b
+#define EC_ACPI_MEM_DEVICE_FEATURES2 0x0c
+#define EC_ACPI_MEM_DEVICE_FEATURES3 0x0d
+#define EC_ACPI_MEM_DEVICE_FEATURES4 0x0e
+#define EC_ACPI_MEM_DEVICE_FEATURES5 0x0f
+#define EC_ACPI_MEM_DEVICE_FEATURES6 0x10
+#define EC_ACPI_MEM_DEVICE_FEATURES7 0x11
+
+#define EC_ACPI_MEM_BATTERY_INDEX 0x12
+
+/*
+ * USB Port Power. Each bit indicates whether the corresponding USB ports' power
+ * is enabled (1) or disabled (0).
+ * bit 0 USB port ID 0
+ * ...
+ * bit 7 USB port ID 7
+ */
+#define EC_ACPI_MEM_USB_PORT_POWER 0x13
+
+/*
+ * ACPI addresses 0x20 - 0xff map to EC_MEMMAP offset 0x00 - 0xdf. This data
+ * is read-only from the AP. Added in EC_ACPI_MEM_VERSION 2.
+ */
+#define EC_ACPI_MEM_MAPPED_BEGIN 0x20
+#define EC_ACPI_MEM_MAPPED_SIZE 0xe0
+
+/* Current version of ACPI memory address space */
+#define EC_ACPI_MEM_VERSION_CURRENT 2
+
+
/*
* This header file is used in coreboot both in C and ACPI code. The ACPI code
* is pre-processed to handle constants but the ASL compiler is unable to
@@ -197,6 +411,92 @@
#define __packed __attribute__((packed))
#endif

+#ifndef __aligned
+#define __aligned(x) __attribute__((aligned(x)))
+#endif
+
+/*
+ * Attributes for EC request and response packets. Just defining __packed
+ * results in inefficient assembly code on ARM, if the structure is actually
+ * 32-bit aligned, as it should be for all buffers.
+ *
+ * Be very careful when adding these to existing structures. They will round
+ * up the structure size to the specified boundary.
+ *
+ * Also be very careful to make that if a structure is included in some other
+ * parent structure that the alignment will still be true given the packing of
+ * the parent structure. This is particularly important if the sub-structure
+ * will be passed as a pointer to another function, since that function will
+ * not know about the misaligment caused by the parent structure's packing.
+ *
+ * Also be very careful using __packed - particularly when nesting non-packed
+ * structures inside packed ones. In fact, DO NOT use __packed directly;
+ * always use one of these attributes.
+ *
+ * Once everything is annotated properly, the following search strings should
+ * not return ANY matches in this file other than right here:
+ *
+ * "__packed" - generates inefficient code; all sub-structs must also be packed
+ *
+ * "struct [^_]" - all structs should be annotated, except for structs that are
+ * members of other structs/unions (and their original declarations should be
+ * annotated).
+ */
+#ifdef CONFIG_HOSTCMD_ALIGNED
+
+/*
+ * Packed structures where offset and size are always aligned to 1, 2, or 4
+ * byte boundary.
+ */
+#define __ec_align1 __packed
+#define __ec_align2 __packed __aligned(2)
+#define __ec_align4 __packed __aligned(4)
+
+/*
+ * Packed structure which must be under-aligned, because its size is not a
+ * 4-byte multiple. This is sub-optimal because it forces byte-wise access
+ * of all multi-byte fields in it, even though they are themselves aligned.
+ *
+ * In theory, we could duplicate the structure with __aligned(4) for accessing
+ * its members, but use the __packed version for sizeof().
+ */
+#define __ec_align_size1 __packed
+
+/*
+ * Packed structure which must be under-aligned, because its offset inside a
+ * parent structure is not a 4-byte multiple.
+ */
+#define __ec_align_offset1 __packed
+#define __ec_align_offset2 __packed __aligned(2)
+
+/*
+ * Structures which are complicated enough that I'm skipping them on the first
+ * pass. They are effectively unchanged from their previous definitions.
+ *
+ * TODO(rspangler): Figure out what to do with these. It's likely necessary
+ * to work out the size and offset of each member and add explicit padding to
+ * maintain those.
+ */
+#define __ec_todo_packed __packed
+#define __ec_todo_unpacked
+
+#else /* !CONFIG_HOSTCMD_ALIGNED */
+
+/*
+ * Packed structures make no assumption about alignment, so they do inefficient
+ * byte-wise reads.
+ */
+#define __ec_align1 __packed
+#define __ec_align2 __packed
+#define __ec_align4 __packed
+#define __ec_align_size1 __packed
+#define __ec_align_offset1 __packed
+#define __ec_align_offset2 __packed
+#define __ec_todo_packed __packed
+#define __ec_todo_unpacked
+
+#endif /* !CONFIG_HOSTCMD_ALIGNED */
+
/* LPC command status byte masks */
/* EC has written a byte in the data register and host hasn't read it yet */
#define EC_LPC_STATUS_TO_HOST 0x01
@@ -206,7 +506,7 @@
#define EC_LPC_STATUS_PROCESSING 0x04
/* Last write to EC was a command, not data */
#define EC_LPC_STATUS_LAST_CMD 0x08
-/* EC is in burst mode. Unsupported by Chrome EC, so this bit is never set */
+/* EC is in burst mode */
#define EC_LPC_STATUS_BURST_MODE 0x10
/* SCI event is pending (requesting SCI query) */
#define EC_LPC_STATUS_SCI_PENDING 0x20
@@ -222,7 +522,9 @@
#define EC_LPC_STATUS_BUSY_MASK \
(EC_LPC_STATUS_FROM_HOST | EC_LPC_STATUS_PROCESSING)

-/* Host command response codes */
+/* Host command response codes (16-bit). Note that response codes should be
+ * stored in a uint16_t rather than directly in a value of this type.
+ */
enum ec_status {
EC_RES_SUCCESS = 0,
EC_RES_INVALID_COMMAND = 1,
@@ -238,7 +540,13 @@ enum ec_status {
EC_RES_OVERFLOW = 11, /* Table / data overflow */
EC_RES_INVALID_HEADER = 12, /* Header contains invalid data */
EC_RES_REQUEST_TRUNCATED = 13, /* Didn't get the entire request */
- EC_RES_RESPONSE_TOO_BIG = 14 /* Response was too big to handle */
+ EC_RES_RESPONSE_TOO_BIG = 14, /* Response was too big to handle */
+ EC_RES_BUS_ERROR = 15, /* Communications bus error */
+ EC_RES_BUSY = 16, /* Up but too busy. Should retry */
+ EC_RES_INVALID_HEADER_VERSION = 17, /* Header version invalid */
+ EC_RES_INVALID_HEADER_CRC = 18, /* Header CRC invalid */
+ EC_RES_INVALID_DATA_CRC = 19, /* Data CRC invalid */
+ EC_RES_DUP_UNAVAILABLE = 20, /* Can't resend response */
};

/*
@@ -258,7 +566,8 @@ enum host_event_code {
EC_HOST_EVENT_BATTERY_CRITICAL = 7,
EC_HOST_EVENT_BATTERY = 8,
EC_HOST_EVENT_THERMAL_THRESHOLD = 9,
- EC_HOST_EVENT_THERMAL_OVERLOAD = 10,
+ /* Event generated by a device attached to the EC */
+ EC_HOST_EVENT_DEVICE = 10,
EC_HOST_EVENT_THERMAL = 11,
EC_HOST_EVENT_USB_CHARGER = 12,
EC_HOST_EVENT_KEY_PRESSED = 13,
@@ -285,15 +594,34 @@ enum host_event_code {
EC_HOST_EVENT_HANG_DETECT = 20,
/* Hang detect logic detected a hang and warm rebooted the AP */
EC_HOST_EVENT_HANG_REBOOT = 21,
+
/* PD MCU triggering host event */
EC_HOST_EVENT_PD_MCU = 22,

- /* EC desires to change state of host-controlled USB mux */
- EC_HOST_EVENT_USB_MUX = 28,
+ /* Battery Status flags have changed */
+ EC_HOST_EVENT_BATTERY_STATUS = 23,
+
+ /* EC encountered a panic, triggering a reset */
+ EC_HOST_EVENT_PANIC = 24,
+
+ /* Keyboard fastboot combo has been pressed */
+ EC_HOST_EVENT_KEYBOARD_FASTBOOT = 25,

/* EC RTC event occurred */
EC_HOST_EVENT_RTC = 26,

+ /* Emulate MKBP event */
+ EC_HOST_EVENT_MKBP = 27,
+
+ /* EC desires to change state of host-controlled USB mux */
+ EC_HOST_EVENT_USB_MUX = 28,
+
+ /* TABLET/LAPTOP mode or detachable base attach/detach event */
+ EC_HOST_EVENT_MODE_CHANGE = 29,
+
+ /* Keyboard recovery combo with hardware reinitialization */
+ EC_HOST_EVENT_KEYBOARD_RECOVERY_HW_REINIT = 30,
+
/*
* The high bit of the event mask is not used as a host event code. If
* it reads back as set, then the entire event mask should be
@@ -304,7 +632,7 @@ enum host_event_code {
EC_HOST_EVENT_INVALID = 32
};
/* Host event mask */
-#define EC_HOST_EVENT_MASK(event_code) (1UL << ((event_code) - 1))
+#define EC_HOST_EVENT_MASK(event_code) (1ULL << ((event_code) - 1))

/**
* struct ec_lpc_host_args - Arguments at EC_LPC_ADDR_HOST_ARGS
@@ -319,7 +647,7 @@ struct ec_lpc_host_args {
uint8_t command_version;
uint8_t data_size;
uint8_t checksum;
-} __packed;
+} __ec_align4;

/* Flags for ec_lpc_host_args.flags */
/*
@@ -329,7 +657,7 @@ struct ec_lpc_host_args {
* If EC gets a command and this flag is not set, this is an old-style command.
* Command version is 0 and params from host are at EC_LPC_ADDR_OLD_PARAM with
* unknown length. EC must respond with an old-style response (that is,
- * withouth setting EC_HOST_ARGS_FLAG_TO_HOST).
+ * without setting EC_HOST_ARGS_FLAG_TO_HOST).
*/
#define EC_HOST_ARGS_FLAG_FROM_HOST 0x01
/*
@@ -490,7 +818,7 @@ struct ec_host_request {
uint8_t command_version;
uint8_t reserved;
uint16_t data_len;
-} __packed;
+} __ec_align4;

#define EC_HOST_RESPONSE_VERSION 3

@@ -509,18 +837,151 @@ struct ec_host_response {
uint16_t result;
uint16_t data_len;
uint16_t reserved;
-} __packed;
+} __ec_align4;
+
+/*****************************************************************************/
+
+/*
+ * Host command protocol V4.
+ *
+ * Packets always start with a request or response header. They are followed
+ * by data_len bytes of data. If the data_crc_present flag is set, the data
+ * bytes are followed by a CRC-8 of that data, using using x^8 + x^2 + x + 1
+ * polynomial.
+ *
+ * Host algorithm when sending a request q:
+ *
+ * 101) tries_left=(some value, e.g. 3);
+ * 102) q.seq_num++
+ * 103) q.seq_dup=0
+ * 104) Calculate q.header_crc.
+ * 105) Send request q to EC.
+ * 106) Wait for response r. Go to 201 if received or 301 if timeout.
+ *
+ * 201) If r.struct_version != 4, go to 301.
+ * 202) If r.header_crc mismatches calculated CRC for r header, go to 301.
+ * 203) If r.data_crc_present and r.data_crc mismatches, go to 301.
+ * 204) If r.seq_num != q.seq_num, go to 301.
+ * 205) If r.seq_dup == q.seq_dup, return success.
+ * 207) If r.seq_dup == 1, go to 301.
+ * 208) Return error.
+ *
+ * 301) If --tries_left <= 0, return error.
+ * 302) If q.seq_dup == 1, go to 105.
+ * 303) q.seq_dup = 1
+ * 304) Go to 104.
+ *
+ * EC algorithm when receiving a request q.
+ * EC has response buffer r, error buffer e.
+ *
+ * 101) If q.struct_version != 4, set e.result = EC_RES_INVALID_HEADER_VERSION
+ * and go to 301
+ * 102) If q.header_crc mismatches calculated CRC, set e.result =
+ * EC_RES_INVALID_HEADER_CRC and go to 301
+ * 103) If q.data_crc_present, calculate data CRC. If that mismatches the CRC
+ * byte at the end of the packet, set e.result = EC_RES_INVALID_DATA_CRC
+ * and go to 301.
+ * 104) If q.seq_dup == 0, go to 201.
+ * 105) If q.seq_num != r.seq_num, go to 201.
+ * 106) If q.seq_dup == r.seq_dup, go to 205, else go to 203.
+ *
+ * 201) Process request q into response r.
+ * 202) r.seq_num = q.seq_num
+ * 203) r.seq_dup = q.seq_dup
+ * 204) Calculate r.header_crc
+ * 205) If r.data_len > 0 and data is no longer available, set e.result =
+ * EC_RES_DUP_UNAVAILABLE and go to 301.
+ * 206) Send response r.
+ *
+ * 301) e.seq_num = q.seq_num
+ * 302) e.seq_dup = q.seq_dup
+ * 303) Calculate e.header_crc.
+ * 304) Send error response e.
+ */
+
+/* Version 4 request from host */
+struct ec_host_request4 {
+ /*
+ * bits 0-3: struct_version: Structure version (=4)
+ * bit 4: is_response: Is response (=0)
+ * bits 5-6: seq_num: Sequence number
+ * bit 7: seq_dup: Sequence duplicate flag
+ */
+ uint8_t fields0;
+
+ /*
+ * bits 0-4: command_version: Command version
+ * bits 5-6: Reserved (set 0, ignore on read)
+ * bit 7: data_crc_present: Is data CRC present after data
+ */
+ uint8_t fields1;
+
+ /* Command code (EC_CMD_*) */
+ uint16_t command;
+
+ /* Length of data which follows this header (not including data CRC) */
+ uint16_t data_len;
+
+ /* Reserved (set 0, ignore on read) */
+ uint8_t reserved;
+
+ /* CRC-8 of above fields, using x^8 + x^2 + x + 1 polynomial */
+ uint8_t header_crc;
+} __ec_align4;
+
+/* Version 4 response from EC */
+struct ec_host_response4 {
+ /*
+ * bits 0-3: struct_version: Structure version (=4)
+ * bit 4: is_response: Is response (=1)
+ * bits 5-6: seq_num: Sequence number
+ * bit 7: seq_dup: Sequence duplicate flag
+ */
+ uint8_t fields0;
+
+ /*
+ * bits 0-6: Reserved (set 0, ignore on read)
+ * bit 7: data_crc_present: Is data CRC present after data
+ */
+ uint8_t fields1;
+
+ /* Result code (EC_RES_*) */
+ uint16_t result;
+
+ /* Length of data which follows this header (not including data CRC) */
+ uint16_t data_len;
+
+ /* Reserved (set 0, ignore on read) */
+ uint8_t reserved;
+
+ /* CRC-8 of above fields, using x^8 + x^2 + x + 1 polynomial */
+ uint8_t header_crc;
+} __ec_align4;
+
+/* Fields in fields0 byte */
+#define EC_PACKET4_0_STRUCT_VERSION_MASK 0x0f
+#define EC_PACKET4_0_IS_RESPONSE_MASK 0x10
+#define EC_PACKET4_0_SEQ_NUM_SHIFT 5
+#define EC_PACKET4_0_SEQ_NUM_MASK 0x60
+#define EC_PACKET4_0_SEQ_DUP_MASK 0x80
+
+/* Fields in fields1 byte */
+#define EC_PACKET4_1_COMMAND_VERSION_MASK 0x1f /* (request only) */
+#define EC_PACKET4_1_DATA_CRC_PRESENT_MASK 0x80

/*****************************************************************************/
/*
* Notes on commands:
*
* Each command is an 16-bit command value. Commands which take params or
- * return response data specify structs for that data. If no struct is
+ * return response data specify structures for that data. If no structure is
* specified, the command does not input or output data, respectively.
* Parameter/response length is implicit in the structs. Some underlying
* communication protocols (I2C, SPI) may add length or checksum headers, but
* those are implementation-dependent and not defined here.
+ *
+ * All commands MUST be #defined to be 4-digit UPPER CASE hex values
+ * (e.g., 0x00AB, not 0xab) for CONFIG_HOSTCMD_SECTION_SORTED to work.
*/

/*****************************************************************************/
@@ -530,7 +991,7 @@ struct ec_host_response {
* Get protocol version, used to deal with non-backward compatible protocol
* changes.
*/
-#define EC_CMD_PROTO_VERSION 0x00
+#define EC_CMD_PROTO_VERSION 0x0000

/**
* struct ec_response_proto_version - Response to the proto version command.
@@ -538,13 +999,13 @@ struct ec_host_response {
*/
struct ec_response_proto_version {
uint32_t version;
-} __packed;
+} __ec_align4;

/*
* Hello. This is a simple command to test the EC is responsive to
* commands.
*/
-#define EC_CMD_HELLO 0x01
+#define EC_CMD_HELLO 0x0001

/**
* struct ec_params_hello - Parameters to the hello command.
@@ -552,7 +1013,7 @@ struct ec_response_proto_version {
*/
struct ec_params_hello {
uint32_t in_data;
-} __packed;
+} __ec_align4;

/**
* struct ec_response_hello - Response to the hello command.
@@ -560,10 +1021,10 @@ struct ec_params_hello {
*/
struct ec_response_hello {
uint32_t out_data;
-} __packed;
+} __ec_align4;

/* Get version number */
-#define EC_CMD_GET_VERSION 0x02
+#define EC_CMD_GET_VERSION 0x0002

enum ec_current_image {
EC_IMAGE_UNKNOWN = 0,
@@ -583,10 +1044,10 @@ struct ec_response_get_version {
char version_string_rw[32];
char reserved[32];
uint32_t current_image;
-} __packed;
+} __ec_align4;

/* Read test */
-#define EC_CMD_READ_TEST 0x03
+#define EC_CMD_READ_TEST 0x0003

/**
* struct ec_params_read_test - Parameters for the read test command.
@@ -596,7 +1057,7 @@ struct ec_response_get_version {
struct ec_params_read_test {
uint32_t offset;
uint32_t size;
-} __packed;
+} __ec_align4;

/**
* struct ec_response_read_test - Response to the read test command.
@@ -604,17 +1065,17 @@ struct ec_params_read_test {
*/
struct ec_response_read_test {
uint32_t data[32];
-} __packed;
+} __ec_align4;

/*
* Get build information
*
* Response is null-terminated string.
*/
-#define EC_CMD_GET_BUILD_INFO 0x04
+#define EC_CMD_GET_BUILD_INFO 0x0004

/* Get chip info */
-#define EC_CMD_GET_CHIP_INFO 0x05
+#define EC_CMD_GET_CHIP_INFO 0x0005

/**
* struct ec_response_get_chip_info - Response to the get chip info command.
@@ -626,10 +1087,10 @@ struct ec_response_get_chip_info {
char vendor[32];
char name[32];
char revision[32];
-} __packed;
+} __ec_align4;

/* Get board HW version */
-#define EC_CMD_GET_BOARD_VERSION 0x06
+#define EC_CMD_GET_BOARD_VERSION 0x0006

/**
* struct ec_response_board_version - Response to the board version command.
@@ -637,7 +1098,7 @@ struct ec_response_get_chip_info {
*/
struct ec_response_board_version {
uint16_t board_version;
-} __packed;
+} __ec_align2;

/*
* Read memory-mapped data.
@@ -647,7 +1108,7 @@ struct ec_response_board_version {
*
* Response is params.size bytes of data.
*/
-#define EC_CMD_READ_MEMMAP 0x07
+#define EC_CMD_READ_MEMMAP 0x0007

/**
* struct ec_params_read_memmap - Parameters for the read memory map command.
@@ -657,10 +1118,10 @@ struct ec_response_board_version {
struct ec_params_read_memmap {
uint8_t offset;
uint8_t size;
-} __packed;
+} __ec_align1;

/* Read versions supported for a command */
-#define EC_CMD_GET_CMD_VERSIONS 0x08
+#define EC_CMD_GET_CMD_VERSIONS 0x0008

/**
* struct ec_params_get_cmd_versions - Parameters for the get command versions.
@@ -668,7 +1129,7 @@ struct ec_params_read_memmap {
*/
struct ec_params_get_cmd_versions {
uint8_t cmd;
-} __packed;
+} __ec_align1;

/**
* struct ec_params_get_cmd_versions_v1 - Parameters for the get command
@@ -677,7 +1138,7 @@ struct ec_params_get_cmd_versions {
*/
struct ec_params_get_cmd_versions_v1 {
uint16_t cmd;
-} __packed;
+} __ec_align2;

/**
* struct ec_response_get_cmd_version - Response to the get command versions.
@@ -686,16 +1147,16 @@ struct ec_params_get_cmd_versions_v1 {
*/
struct ec_response_get_cmd_versions {
uint32_t version_mask;
-} __packed;
+} __ec_align4;

/*
- * Check EC communcations status (busy). This is needed on i2c/spi but not
+ * Check EC communications status (busy). This is needed on i2c/spi but not
* on lpc since it has its own out-of-band busy indicator.
*
* lpc must read the status from the command register. Attempting this on
* lpc will overwrite the args/parameter space and corrupt its data.
*/
-#define EC_CMD_GET_COMMS_STATUS 0x09
+#define EC_CMD_GET_COMMS_STATUS 0x0009

/* Avoid using ec_status which is for return values */
enum ec_comms_status {
@@ -709,25 +1170,25 @@ enum ec_comms_status {
*/
struct ec_response_get_comms_status {
uint32_t flags; /* Mask of enum ec_comms_status */
-} __packed;
+} __ec_align4;

/* Fake a variety of responses, purely for testing purposes. */
-#define EC_CMD_TEST_PROTOCOL 0x0a
+#define EC_CMD_TEST_PROTOCOL 0x000A

/* 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;
+} __ec_align4;

/* Here it comes... */
struct ec_response_test_protocol {
uint8_t buf[32];
-} __packed;
+} __ec_align4;

-/* Get prococol information */
-#define EC_CMD_GET_PROTOCOL_INFO 0x0b
+/* Get protocol information */
+#define EC_CMD_GET_PROTOCOL_INFO 0x000B

/* Flags for ec_response_get_protocol_info.flags */
/* EC_RES_IN_PROGRESS may be returned if a command is slow */
@@ -747,7 +1208,7 @@ struct ec_response_get_protocol_info {
uint16_t max_request_packet_size;
uint16_t max_response_packet_size;
uint32_t flags;
-} __packed;
+} __ec_align4;


/*****************************************************************************/
@@ -765,19 +1226,19 @@ struct ec_response_get_protocol_info {
struct ec_params_get_set_value {
uint32_t flags;
uint32_t value;
-} __packed;
+} __ec_align4;

struct ec_response_get_set_value {
uint32_t flags;
uint32_t value;
-} __packed;
+} __ec_align4;

-/* More than one command can use these structs to get/set paramters. */
-#define EC_CMD_GSV_PAUSE_IN_S5 0x0c
+/* More than one command can use these structs to get/set parameters. */
+#define EC_CMD_GSV_PAUSE_IN_S5 0x000C

/*****************************************************************************/
/* List the features supported by the firmware */
-#define EC_CMD_GET_FEATURES 0x0d
+#define EC_CMD_GET_FEATURES 0x000D

/* Supported features */
enum ec_feature_code {
@@ -840,7 +1301,7 @@ enum ec_feature_code {
* (Common Smart Battery System Interface Specification)
*/
EC_FEATURE_SMART_BATTERY = 18,
- /* EC can dectect when the host hangs. */
+ /* EC can detect when the host hangs. */
EC_FEATURE_HANG_DETECT = 19,
/* Report power information, for pit only */
EC_FEATURE_PMU = 20,
@@ -852,10 +1313,42 @@ enum ec_feature_code {
EC_FEATURE_USB_MUX = 23,
/* Motion Sensor code has an internal software FIFO */
EC_FEATURE_MOTION_SENSE_FIFO = 24,
+ /* Support temporary secure vstore */
+ EC_FEATURE_VSTORE = 25,
+ /* EC decides on USB-C SS mux state, muxes configured by host */
+ EC_FEATURE_USBC_SS_MUX_VIRTUAL = 26,
/* EC has RTC feature that can be controlled by host commands */
EC_FEATURE_RTC = 27,
+ /* The MCU exposes a Fingerprint sensor */
+ EC_FEATURE_FINGERPRINT = 28,
+ /* The MCU exposes a Touchpad */
+ EC_FEATURE_TOUCHPAD = 29,
+ /* The MCU has RWSIG task enabled */
+ EC_FEATURE_RWSIG = 30,
+ /* EC has device events support */
+ EC_FEATURE_DEVICE_EVENT = 31,
+ /* EC supports the unified wake masks for LPC/eSPI systems */
+ EC_FEATURE_UNIFIED_WAKE_MASKS = 32,
+ /* EC supports 64-bit host events */
+ EC_FEATURE_HOST_EVENT64 = 33,
+ /* EC runs code in RAM (not in place, a.k.a. XIP) */
+ EC_FEATURE_EXEC_IN_RAM = 34,
/* EC supports CEC commands */
EC_FEATURE_CEC = 35,
+ /* EC supports tight sensor timestamping. */
+ EC_FEATURE_MOTION_SENSE_TIGHT_TIMESTAMPS = 36,
+ /*
+ * EC supports tablet mode detection aligned to Chrome and allows
+ * setting of threshold by host command using
+ * MOTIONSENSE_CMD_TABLET_MODE_LID_ANGLE.
+ */
+ EC_FEATURE_REFINED_TABLET_MODE_HYSTERESIS = 37,
+ /* EC supports audio codec. */
+ EC_FEATURE_AUDIO_CODEC = 38,
+ /* EC Supports SCP. */
+ EC_FEATURE_SCP = 39,
+ /* The MCU is Intel Integrated Sensor Hub */
+ EC_FEATURE_ISH = 40,
};

#define EC_FEATURE_MASK_0(event_code) (1UL << (event_code % 32))
@@ -863,13 +1356,25 @@ enum ec_feature_code {

struct ec_response_get_features {
uint32_t flags[2];
-} __packed;
+} __ec_align4;
+
+/*****************************************************************************/
+/* Get the board's SKU ID from EC */
+#define EC_CMD_GET_SKU_ID 0x000E
+
+/* Set SKU ID from AP */
+#define EC_CMD_SET_SKU_ID 0x000F
+
+struct ec_sku_id_info {
+ uint32_t sku_id;
+} __ec_align4;

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

/* Get flash info */
-#define EC_CMD_FLASH_INFO 0x10
+#define EC_CMD_FLASH_INFO 0x0010
+#define EC_VER_FLASH_INFO 2

/**
* struct ec_response_flash_info - Response to the flash info command.
@@ -888,12 +1393,23 @@ struct ec_response_flash_info {
uint32_t write_block_size;
uint32_t erase_block_size;
uint32_t protect_block_size;
-} __packed;
+} __ec_align4;

-/* Flags for version 1+ flash info command */
-/* EC flash erases bits to 0 instead of 1 */
+/*
+ * Flags for version 1+ flash info command
+ * EC flash erases bits to 0 instead of 1.
+ */
#define EC_FLASH_INFO_ERASE_TO_0 (1 << 0)

+/*
+ * Flash must be selected for read/write/erase operations to succeed. This may
+ * be necessary on a chip where write/erase can be corrupted by other board
+ * activity, or where the chip needs to enable some sort of programming voltage,
+ * or where the read/write/erase operations require cleanly suspending other
+ * chip functionality.
+ */
+#define EC_FLASH_INFO_SELECT_REQUIRED (1 << 1)
+
/**
* struct ec_response_flash_info_1 - Response to the flash info v1 command.
* @flash_size: Usable flash size in bytes.
@@ -914,7 +1430,14 @@ struct ec_response_flash_info {
* 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.
+ * if they did we'd define the version 0 structure as a sub-structure of this
+ * one.
+ *
+ * Version 2 supports flash banks of different sizes:
+ * The caller specified the number of banks it has preallocated
+ * (num_banks_desc)
+ * The EC returns the number of banks describing the flash memory.
+ * It adds banks descriptions up to num_banks_desc.
*/
struct ec_response_flash_info_1 {
/* Version 0 fields; see above for description */
@@ -926,14 +1449,50 @@ struct ec_response_flash_info_1 {
/* Version 1 adds these fields: */
uint32_t write_ideal_size;
uint32_t flags;
-} __packed;
+} __ec_align4;
+
+struct ec_params_flash_info_2 {
+ /* Number of banks to describe */
+ uint16_t num_banks_desc;
+ /* Reserved; set 0; ignore on read */
+ uint8_t reserved[2];
+} __ec_align4;
+
+struct ec_flash_bank {
+ /* Number of sector is in this bank. */
+ uint16_t count;
+ /* Size in power of 2 of each sector (8 --> 256 bytes) */
+ uint8_t size_exp;
+ /* Minimal write size for the sectors in this bank */
+ uint8_t write_size_exp;
+ /* Erase size for the sectors in this bank */
+ uint8_t erase_size_exp;
+ /* Size for write protection, usually identical to erase size. */
+ uint8_t protect_size_exp;
+ /* Reserved; set 0; ignore on read */
+ uint8_t reserved[2];
+};
+
+struct ec_response_flash_info_2 {
+ /* Total flash in the EC. */
+ uint32_t flash_size;
+ /* Flags; see EC_FLASH_INFO_* */
+ uint32_t flags;
+ /* Maximum size to use to send data to write to the EC. */
+ uint32_t write_ideal_size;
+ /* Number of banks present in the EC. */
+ uint16_t num_banks_total;
+ /* Number of banks described in banks array. */
+ uint16_t num_banks_desc;
+ struct ec_flash_bank banks[0];
+} __ec_align4;

/*
* Read flash
*
* Response is params.size bytes of data.
*/
-#define EC_CMD_FLASH_READ 0x11
+#define EC_CMD_FLASH_READ 0x0011

/**
* struct ec_params_flash_read - Parameters for the flash read command.
@@ -943,10 +1502,10 @@ struct ec_response_flash_info_1 {
struct ec_params_flash_read {
uint32_t offset;
uint32_t size;
-} __packed;
+} __ec_align4;

/* Write flash */
-#define EC_CMD_FLASH_WRITE 0x12
+#define EC_CMD_FLASH_WRITE 0x0012
#define EC_VER_FLASH_WRITE 1

/* Version 0 of the flash command supported only 64 bytes of data */
@@ -961,32 +1520,69 @@ struct ec_params_flash_write {
uint32_t offset;
uint32_t size;
/* Followed by data to write */
-} __packed;
+} __ec_align4;

/* Erase flash */
-#define EC_CMD_FLASH_ERASE 0x13
+#define EC_CMD_FLASH_ERASE 0x0013

/**
- * struct ec_params_flash_erase - Parameters for the flash erase command.
+ * struct ec_params_flash_erase - Parameters for the flash erase command, v0.
* @offset: Byte offset to erase.
* @size: Size to erase in bytes.
*/
struct ec_params_flash_erase {
uint32_t offset;
uint32_t size;
-} __packed;
+} __ec_align4;

/*
- * Get/set flash protection.
+ * v1 add async erase:
+ * subcommands can returns:
+ * EC_RES_SUCCESS : erased (see ERASE_SECTOR_ASYNC case below).
+ * EC_RES_INVALID_PARAM : offset/size are not aligned on a erase boundary.
+ * EC_RES_ERROR : other errors.
+ * EC_RES_BUSY : an existing erase operation is in progress.
+ * EC_RES_ACCESS_DENIED: Trying to erase running image.
*
- * 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
+ * When ERASE_SECTOR_ASYNC returns EC_RES_SUCCESS, the operation is just
+ * properly queued. The user must call ERASE_GET_RESULT subcommand to get
+ * the proper result.
+ * When ERASE_GET_RESULT returns EC_RES_BUSY, the caller must wait and send
+ * ERASE_GET_RESULT again to get the result of ERASE_SECTOR_ASYNC.
+ * ERASE_GET_RESULT command may timeout on EC where flash access is not
+ * permitted while erasing. (For instance, STM32F4).
+ */
+enum ec_flash_erase_cmd {
+ FLASH_ERASE_SECTOR, /* Erase and wait for result */
+ FLASH_ERASE_SECTOR_ASYNC, /* Erase and return immediately. */
+ FLASH_ERASE_GET_RESULT, /* Ask for last erase result */
+};
+
+/**
+ * struct ec_params_flash_erase_v1 - Parameters for the flash erase command, v1.
+ * @cmd: One of ec_flash_erase_cmd.
+ * @reserved: Pad byte; currently always contains 0.
+ * @flag: No flags defined yet; set to 0.
+ * @params: Same as v0 parameters.
+ */
+struct ec_params_flash_erase_v1 {
+ uint8_t cmd;
+ uint8_t reserved;
+ uint16_t flag;
+ struct ec_params_flash_erase params;
+} __ec_align4;
+
+/*
+ * 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_CMD_FLASH_PROTECT 0x0015
#define EC_VER_FLASH_PROTECT 1 /* Command version 1 */

/* Flags for flash protection */
@@ -1009,8 +1605,17 @@ struct ec_params_flash_erase {
* 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 */
+/* Entire flash code protected when the EC boots */
#define EC_FLASH_PROTECT_ALL_AT_BOOT (1 << 6)
+/* RW flash code protected when the EC boots */
+#define EC_FLASH_PROTECT_RW_AT_BOOT (1 << 7)
+/* RW flash code protected now. */
+#define EC_FLASH_PROTECT_RW_NOW (1 << 8)
+/* Rollback information flash region protected when the EC boots */
+#define EC_FLASH_PROTECT_ROLLBACK_AT_BOOT (1 << 9)
+/* Rollback information flash region protected now */
+#define EC_FLASH_PROTECT_ROLLBACK_NOW (1 << 10)
+

/**
* struct ec_params_flash_protect - Parameters for the flash protect command.
@@ -1020,7 +1625,7 @@ struct ec_params_flash_erase {
struct ec_params_flash_protect {
uint32_t mask;
uint32_t flags;
-} __packed;
+} __ec_align4;

/**
* struct ec_response_flash_protect - Response to the flash protect command.
@@ -1035,7 +1640,7 @@ struct ec_response_flash_protect {
uint32_t flags;
uint32_t valid_flags;
uint32_t writable_flags;
-} __packed;
+} __ec_align4;

/*
* Note: commands 0x14 - 0x19 version 0 were old commands to get/set flash
@@ -1043,22 +1648,37 @@ struct ec_response_flash_protect {
*/

/* Get the region offset/size */
-#define EC_CMD_FLASH_REGION_INFO 0x16
+#define EC_CMD_FLASH_REGION_INFO 0x0016
#define EC_VER_FLASH_REGION_INFO 1

enum ec_flash_region {
/* Region which holds read-only EC image */
EC_FLASH_REGION_RO = 0,
- /* Region which holds rewritable EC image */
- EC_FLASH_REGION_RW,
+ /*
+ * Region which holds active RW image. 'Active' is different from
+ * 'running'. Active means 'scheduled-to-run'. Since RO image always
+ * scheduled to run, active/non-active applies only to RW images (for
+ * the same reason 'update' applies only to RW images. It's a state of
+ * an image on a flash. Running image can be RO, RW_A, RW_B but active
+ * image can only be RW_A or RW_B. In recovery mode, an active RW image
+ * doesn't enter 'running' state but it's still active on a flash.
+ */
+ EC_FLASH_REGION_ACTIVE,
/*
* Region which should be write-protected in the factory (a superset of
* EC_FLASH_REGION_RO)
*/
EC_FLASH_REGION_WP_RO,
+ /* Region which holds updatable (non-active) RW image */
+ EC_FLASH_REGION_UPDATE,
/* Number of regions */
EC_FLASH_REGION_COUNT,
};
+/*
+ * 'RW' is vague if there are multiple RW images; we mean the active one,
+ * so the old constant is deprecated.
+ */
+#define EC_FLASH_REGION_RW EC_FLASH_REGION_ACTIVE

/**
* struct ec_params_flash_region_info - Parameters for the flash region info
@@ -1067,15 +1687,15 @@ enum ec_flash_region {
*/
struct ec_params_flash_region_info {
uint32_t region;
-} __packed;
+} __ec_align4;

struct ec_response_flash_region_info {
uint32_t offset;
uint32_t size;
-} __packed;
+} __ec_align4;

/* Read/write VbNvContext */
-#define EC_CMD_VBNV_CONTEXT 0x17
+#define EC_CMD_VBNV_CONTEXT 0x0017
#define EC_VER_VBNV_CONTEXT 1
#define EC_VBNV_BLOCK_SIZE 16

@@ -1087,52 +1707,99 @@ enum ec_vbnvcontext_op {
struct ec_params_vbnvcontext {
uint32_t op;
uint8_t block[EC_VBNV_BLOCK_SIZE];
-} __packed;
+} __ec_align4;

struct ec_response_vbnvcontext {
uint8_t block[EC_VBNV_BLOCK_SIZE];
-} __packed;
+} __ec_align4;
+
+
+/* Get SPI flash information */
+#define EC_CMD_FLASH_SPI_INFO 0x0018
+
+struct ec_response_flash_spi_info {
+ /* JEDEC info from command 0x9F (manufacturer, memory type, size) */
+ uint8_t jedec[3];
+
+ /* Pad byte; currently always contains 0 */
+ uint8_t reserved0;
+
+ /* Manufacturer / device ID from command 0x90 */
+ uint8_t mfr_dev_id[2];
+
+ /* Status registers from command 0x05 and 0x35 */
+ uint8_t sr1, sr2;
+} __ec_align1;
+
+
+/* Select flash during flash operations */
+#define EC_CMD_FLASH_SELECT 0x0019
+
+/**
+ * struct ec_params_flash_select - Parameters for the flash select command.
+ * @select: 1 to select flash, 0 to deselect flash
+ */
+struct ec_params_flash_select {
+ uint8_t select;
+} __ec_align4;
+

/*****************************************************************************/
/* PWM commands */

/* Get fan target RPM */
-#define EC_CMD_PWM_GET_FAN_TARGET_RPM 0x20
+#define EC_CMD_PWM_GET_FAN_TARGET_RPM 0x0020

struct ec_response_pwm_get_fan_rpm {
uint32_t rpm;
-} __packed;
+} __ec_align4;

/* Set target fan RPM */
-#define EC_CMD_PWM_SET_FAN_TARGET_RPM 0x21
+#define EC_CMD_PWM_SET_FAN_TARGET_RPM 0x0021
+
+/* Version 0 of input params */
+struct ec_params_pwm_set_fan_target_rpm_v0 {
+ uint32_t rpm;
+} __ec_align4;

-struct ec_params_pwm_set_fan_target_rpm {
+/* Version 1 of input params */
+struct ec_params_pwm_set_fan_target_rpm_v1 {
uint32_t rpm;
-} __packed;
+ uint8_t fan_idx;
+} __ec_align_size1;

/* Get keyboard backlight */
-#define EC_CMD_PWM_GET_KEYBOARD_BACKLIGHT 0x22
+/* OBSOLETE - Use EC_CMD_PWM_SET_DUTY */
+#define EC_CMD_PWM_GET_KEYBOARD_BACKLIGHT 0x0022

struct ec_response_pwm_get_keyboard_backlight {
uint8_t percent;
uint8_t enabled;
-} __packed;
+} __ec_align1;

/* Set keyboard backlight */
-#define EC_CMD_PWM_SET_KEYBOARD_BACKLIGHT 0x23
+/* OBSOLETE - Use EC_CMD_PWM_SET_DUTY */
+#define EC_CMD_PWM_SET_KEYBOARD_BACKLIGHT 0x0023

struct ec_params_pwm_set_keyboard_backlight {
uint8_t percent;
-} __packed;
+} __ec_align1;

/* Set target fan PWM duty cycle */
-#define EC_CMD_PWM_SET_FAN_DUTY 0x24
+#define EC_CMD_PWM_SET_FAN_DUTY 0x0024
+
+/* Version 0 of input params */
+struct ec_params_pwm_set_fan_duty_v0 {
+ uint32_t percent;
+} __ec_align4;

-struct ec_params_pwm_set_fan_duty {
+/* Version 1 of input params */
+struct ec_params_pwm_set_fan_duty_v1 {
uint32_t percent;
-} __packed;
+ uint8_t fan_idx;
+} __ec_align_size1;

-#define EC_CMD_PWM_SET_DUTY 0x25
+#define EC_CMD_PWM_SET_DUTY 0x0025
/* 16 bit duty cycle, 0xffff = 100% */
#define EC_PWM_MAX_DUTY 0xffff

@@ -1150,18 +1817,18 @@ 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;
+} __ec_align4;

-#define EC_CMD_PWM_GET_DUTY 0x26
+#define EC_CMD_PWM_GET_DUTY 0x0026

struct ec_params_pwm_get_duty {
uint8_t pwm_type; /* ec_pwm_type */
uint8_t index; /* Type-specific index, or 0 if unique */
-} __packed;
+} __ec_align1;

struct ec_response_pwm_get_duty {
uint16_t duty; /* Duty cycle, EC_PWM_MAX_DUTY = 100% */
-} __packed;
+} __ec_align2;

/*****************************************************************************/
/*
@@ -1170,11 +1837,11 @@ struct ec_response_pwm_get_duty {
* 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
+#define EC_CMD_LIGHTBAR_CMD 0x0028

struct rgb_s {
uint8_t r, g, b;
-};
+} __ec_todo_unpacked;

#define LB_BATTERY_LEVELS 4

@@ -1214,7 +1881,7 @@ struct lightbar_params_v0 {

/* Color palette */
struct rgb_s color[8]; /* 0-3 are Google colors */
-} __packed;
+} __ec_todo_packed;

struct lightbar_params_v1 {
/* Timing */
@@ -1227,9 +1894,72 @@ struct lightbar_params_v1 {
int32_t s3_sleep_for;
int32_t s3_ramp_up;
int32_t s3_ramp_down;
+ int32_t s5_ramp_up;
+ int32_t s5_ramp_down;
+ int32_t tap_tick_delay;
+ int32_t tap_gate_delay;
+ int32_t tap_display_time;
+
+ /* Tap-for-battery params */
+ uint8_t tap_pct_red;
+ uint8_t tap_pct_green;
+ uint8_t tap_seg_min_on;
+ uint8_t tap_seg_max_on;
+ uint8_t tap_seg_osc;
+ uint8_t tap_idx[3];
+
+ /* Oscillation */
+ uint8_t osc_min[2]; /* AC=0/1 */
+ uint8_t osc_max[2]; /* AC=0/1 */
+ uint8_t w_ofs[2]; /* AC=0/1 */
+
+ /* Brightness limits based on the backlight and AC. */
+ uint8_t bright_bl_off_fixed[2]; /* AC=0/1 */
+ uint8_t bright_bl_on_min[2]; /* AC=0/1 */
+ uint8_t bright_bl_on_max[2]; /* AC=0/1 */
+
+ /* Battery level thresholds */
+ uint8_t battery_threshold[LB_BATTERY_LEVELS - 1];
+
+ /* Map [AC][battery_level] to color index */
+ uint8_t s0_idx[2][LB_BATTERY_LEVELS]; /* AP is running */
+ uint8_t s3_idx[2][LB_BATTERY_LEVELS]; /* AP is sleeping */
+
+ /* s5: single color pulse on inhibited power-up */
+ uint8_t s5_idx;
+
+ /* Color palette */
+ struct rgb_s color[8]; /* 0-3 are Google colors */
+} __ec_todo_packed;
+
+/* Lightbar command params v2
+ * crbug.com/467716
+ *
+ * lightbar_parms_v1 was too big for i2c, therefore in v2, we split them up by
+ * logical groups to make it more manageable ( < 120 bytes).
+ *
+ * NOTE: Each of these groups must be less than 120 bytes.
+ */
+
+struct lightbar_params_v2_timing {
+ /* Timing */
+ int32_t google_ramp_up;
+ int32_t google_ramp_down;
+ int32_t s3s0_ramp_up;
+ int32_t s0_tick_delay[2]; /* AC=0/1 */
+ int32_t s0a_tick_delay[2]; /* AC=0/1 */
+ int32_t s0s3_ramp_down;
+ int32_t s3_sleep_for;
+ int32_t s3_ramp_up;
+ int32_t s3_ramp_down;
+ int32_t s5_ramp_up;
+ int32_t s5_ramp_down;
int32_t tap_tick_delay;
+ int32_t tap_gate_delay;
int32_t tap_display_time;
+} __ec_todo_packed;

+struct lightbar_params_v2_tap {
/* Tap-for-battery params */
uint8_t tap_pct_red;
uint8_t tap_pct_green;
@@ -1237,102 +1967,140 @@ struct lightbar_params_v1 {
uint8_t tap_seg_max_on;
uint8_t tap_seg_osc;
uint8_t tap_idx[3];
+} __ec_todo_packed;

+struct lightbar_params_v2_oscillation {
/* Oscillation */
uint8_t osc_min[2]; /* AC=0/1 */
uint8_t osc_max[2]; /* AC=0/1 */
uint8_t w_ofs[2]; /* AC=0/1 */
+} __ec_todo_packed;

+struct lightbar_params_v2_brightness {
/* Brightness limits based on the backlight and AC. */
uint8_t bright_bl_off_fixed[2]; /* AC=0/1 */
uint8_t bright_bl_on_min[2]; /* AC=0/1 */
uint8_t bright_bl_on_max[2]; /* AC=0/1 */
+} __ec_todo_packed;

+struct lightbar_params_v2_thresholds {
/* Battery level thresholds */
uint8_t battery_threshold[LB_BATTERY_LEVELS - 1];
+} __ec_todo_packed;

+struct lightbar_params_v2_colors {
/* Map [AC][battery_level] to color index */
uint8_t s0_idx[2][LB_BATTERY_LEVELS]; /* AP is running */
uint8_t s3_idx[2][LB_BATTERY_LEVELS]; /* AP is sleeping */

+ /* s5: single color pulse on inhibited power-up */
+ uint8_t s5_idx;
+
/* Color palette */
struct rgb_s color[8]; /* 0-3 are Google colors */
-} __packed;
+} __ec_todo_packed;

-/* Lightbar program */
+/* Lightbyte program. */
#define EC_LB_PROG_LEN 192
struct lightbar_program {
uint8_t size;
uint8_t data[EC_LB_PROG_LEN];
-};
+} __ec_todo_unpacked;

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, suspend, resume;
+ /*
+ * The following commands have no args:
+ *
+ * dump, off, on, init, get_seq, get_params_v0, get_params_v1,
+ * version, get_brightness, get_demo, suspend, resume,
+ * get_params_v2_timing, get_params_v2_tap, get_params_v2_osc,
+ * get_params_v2_bright, get_params_v2_thlds,
+ * get_params_v2_colors
+ *
+ * Don't use an empty struct, because C++ hates that.
+ */

- struct {
+ struct __ec_todo_unpacked {
uint8_t num;
} set_brightness, seq, demo;

- struct {
+ struct __ec_todo_unpacked {
uint8_t ctrl, reg, value;
} reg;

- struct {
+ struct __ec_todo_unpacked {
uint8_t led, red, green, blue;
} set_rgb;

- struct {
+ struct __ec_todo_unpacked {
uint8_t led;
} get_rgb;

- struct {
+ struct __ec_todo_unpacked {
uint8_t enable;
} manual_suspend_ctrl;

struct lightbar_params_v0 set_params_v0;
struct lightbar_params_v1 set_params_v1;
+
+ struct lightbar_params_v2_timing set_v2par_timing;
+ struct lightbar_params_v2_tap set_v2par_tap;
+ struct lightbar_params_v2_oscillation set_v2par_osc;
+ struct lightbar_params_v2_brightness set_v2par_bright;
+ struct lightbar_params_v2_thresholds set_v2par_thlds;
+ struct lightbar_params_v2_colors set_v2par_colors;
+
struct lightbar_program set_program;
};
-} __packed;
+} __ec_todo_packed;

struct ec_response_lightbar {
union {
- struct {
- struct {
+ struct __ec_todo_unpacked {
+ struct __ec_todo_unpacked {
uint8_t reg;
uint8_t ic0;
uint8_t ic1;
} vals[23];
} dump;

- struct {
+ struct __ec_todo_unpacked {
uint8_t num;
} get_seq, get_brightness, get_demo;

struct lightbar_params_v0 get_params_v0;
struct lightbar_params_v1 get_params_v1;

- struct {
+
+ struct lightbar_params_v2_timing get_params_v2_timing;
+ struct lightbar_params_v2_tap get_params_v2_tap;
+ struct lightbar_params_v2_oscillation get_params_v2_osc;
+ struct lightbar_params_v2_brightness get_params_v2_bright;
+ struct lightbar_params_v2_thresholds get_params_v2_thlds;
+ struct lightbar_params_v2_colors get_params_v2_colors;
+
+ struct __ec_todo_unpacked {
uint32_t num;
uint32_t flags;
} version;

- struct {
+ struct __ec_todo_unpacked {
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,
- set_program, manual_suspend_ctrl, suspend, resume;
+ /*
+ * The following commands have no response:
+ *
+ * off, on, init, set_brightness, seq, reg, set_rgb, demo,
+ * set_params_v0, set_params_v1, set_program,
+ * manual_suspend_ctrl, suspend, resume, set_v2par_timing,
+ * set_v2par_tap, set_v2par_osc, set_v2par_bright,
+ * set_v2par_thlds, set_v2par_colors
+ */
};
-} __packed;
+} __ec_todo_packed;

/* Lightbar commands */
enum lightbar_command {
@@ -1358,13 +2126,25 @@ enum lightbar_command {
LIGHTBAR_CMD_MANUAL_SUSPEND_CTRL = 19,
LIGHTBAR_CMD_SUSPEND = 20,
LIGHTBAR_CMD_RESUME = 21,
+ LIGHTBAR_CMD_GET_PARAMS_V2_TIMING = 22,
+ LIGHTBAR_CMD_SET_PARAMS_V2_TIMING = 23,
+ LIGHTBAR_CMD_GET_PARAMS_V2_TAP = 24,
+ LIGHTBAR_CMD_SET_PARAMS_V2_TAP = 25,
+ LIGHTBAR_CMD_GET_PARAMS_V2_OSCILLATION = 26,
+ LIGHTBAR_CMD_SET_PARAMS_V2_OSCILLATION = 27,
+ LIGHTBAR_CMD_GET_PARAMS_V2_BRIGHTNESS = 28,
+ LIGHTBAR_CMD_SET_PARAMS_V2_BRIGHTNESS = 29,
+ LIGHTBAR_CMD_GET_PARAMS_V2_THRESHOLDS = 30,
+ LIGHTBAR_CMD_SET_PARAMS_V2_THRESHOLDS = 31,
+ LIGHTBAR_CMD_GET_PARAMS_V2_COLORS = 32,
+ LIGHTBAR_CMD_SET_PARAMS_V2_COLORS = 33,
LIGHTBAR_NUM_CMDS
};

/*****************************************************************************/
/* LED control commands */

-#define EC_CMD_LED_CONTROL 0x29
+#define EC_CMD_LED_CONTROL 0x0029

enum ec_led_id {
/* LED to indicate battery state of charge */
@@ -1376,6 +2156,14 @@ enum ec_led_id {
EC_LED_ID_POWER_LED,
/* LED on power adapter or its plug */
EC_LED_ID_ADAPTER_LED,
+ /* LED to indicate left side */
+ EC_LED_ID_LEFT_LED,
+ /* LED to indicate right side */
+ EC_LED_ID_RIGHT_LED,
+ /* LED to indicate recovery mode with HW_REINIT */
+ EC_LED_ID_RECOVERY_HW_REINIT_LED,
+ /* LED to indicate sysrq debug mode. */
+ EC_LED_ID_SYSRQ_DEBUG_LED,

EC_LED_ID_COUNT
};
@@ -1390,6 +2178,7 @@ enum ec_led_colors {
EC_LED_COLOR_BLUE,
EC_LED_COLOR_YELLOW,
EC_LED_COLOR_WHITE,
+ EC_LED_COLOR_AMBER,

EC_LED_COLOR_COUNT
};
@@ -1399,7 +2188,7 @@ struct ec_params_led_control {
uint8_t flags; /* Control flags */

uint8_t brightness[EC_LED_COLOR_COUNT];
-} __packed;
+} __ec_align1;

struct ec_response_led_control {
/*
@@ -1410,7 +2199,7 @@ struct ec_response_led_control {
* Other values means the LED is control by PWM.
*/
uint8_t brightness_range[EC_LED_COLOR_COUNT];
-} __packed;
+} __ec_align1;

/*****************************************************************************/
/* Verified boot commands */
@@ -1421,7 +2210,7 @@ struct ec_response_led_control {
*/

/* Verified boot hash command */
-#define EC_CMD_VBOOT_HASH 0x2A
+#define EC_CMD_VBOOT_HASH 0x002A

struct ec_params_vboot_hash {
uint8_t cmd; /* enum ec_vboot_hash_cmd */
@@ -1431,7 +2220,7 @@ struct ec_params_vboot_hash {
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;
+} __ec_align4;

struct ec_response_vboot_hash {
uint8_t status; /* enum ec_vboot_hash_status */
@@ -1441,7 +2230,7 @@ struct ec_response_vboot_hash {
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;
+} __ec_align4;

enum ec_vboot_hash_cmd {
EC_VBOOT_HASH_GET = 0, /* Get current hash status */
@@ -1465,15 +2254,22 @@ enum ec_vboot_hash_status {
* 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
+#define EC_VBOOT_HASH_OFFSET_RO 0xfffffffe
+#define EC_VBOOT_HASH_OFFSET_ACTIVE 0xfffffffd
+#define EC_VBOOT_HASH_OFFSET_UPDATE 0xfffffffc
+
+/*
+ * 'RW' is vague if there are multiple RW images; we mean the active one,
+ * so the old constant is deprecated.
+ */
+#define EC_VBOOT_HASH_OFFSET_RW EC_VBOOT_HASH_OFFSET_ACTIVE

/*****************************************************************************/
/*
* Motion sense commands. We'll make separate structs for sub-commands with
* different input args, so that we know how much to expect.
*/
-#define EC_CMD_MOTION_SENSE_CMD 0x2B
+#define EC_CMD_MOTION_SENSE_CMD 0x002B

/* Motion sense commands */
enum motionsense_command {
@@ -1492,7 +2288,13 @@ enum motionsense_command {

/*
* EC Rate command is a setter/getter command for the EC sampling rate
- * of all motion sensors in milliseconds.
+ * in milliseconds.
+ * It is per sensor, the EC run sample task at the minimum of all
+ * sensors EC_RATE.
+ * For sensors without hardware FIFO, EC_RATE should be equals to 1/ODR
+ * to collect all the sensor samples.
+ * For sensor with hardware FIFO, EC_RATE is used as the maximal delay
+ * to process of all motion sensors in milliseconds.
*/
MOTIONSENSE_CMD_EC_RATE = 2,

@@ -1523,32 +2325,76 @@ enum motionsense_command {
MOTIONSENSE_CMD_DATA = 6,

/*
- * Perform low level calibration.. On sensors that support it, ask to
- * do offset calibration.
+ * Return sensor fifo info.
+ */
+ MOTIONSENSE_CMD_FIFO_INFO = 7,
+
+ /*
+ * Insert a flush element in the fifo and return sensor fifo info.
+ * The host can use that element to synchronize its operation.
+ */
+ MOTIONSENSE_CMD_FIFO_FLUSH = 8,
+
+ /*
+ * Return a portion of the fifo.
+ */
+ MOTIONSENSE_CMD_FIFO_READ = 9,
+
+ /*
+ * Perform low level calibration.
+ * On sensors that support it, ask to do offset calibration.
*/
MOTIONSENSE_CMD_PERFORM_CALIB = 10,

/*
- * Sensor Offset command is a setter/getter command for the offset used
- * for calibration. The offsets can be calculated by the host, or via
+ * Sensor Offset command is a setter/getter command for the offset
+ * used for calibration.
+ * The offsets can be calculated by the host, or via
* PERFORM_CALIB command.
*/
MOTIONSENSE_CMD_SENSOR_OFFSET = 11,

- /* Number of motionsense sub-commands. */
- MOTIONSENSE_NUM_CMDS
-};
+ /*
+ * List available activities for a MOTION sensor.
+ * Indicates if they are enabled or disabled.
+ */
+ MOTIONSENSE_CMD_LIST_ACTIVITIES = 12,
+
+ /*
+ * Activity management
+ * Enable/Disable activity recognition.
+ */
+ MOTIONSENSE_CMD_SET_ACTIVITY = 13,
+
+ /*
+ * Lid Angle
+ */
+ MOTIONSENSE_CMD_LID_ANGLE = 14,
+
+ /*
+ * Allow the FIFO to trigger interrupt via MKBP events.
+ * By default the FIFO does not send interrupt to process the FIFO
+ * until the AP is ready or it is coming from a wakeup sensor.
+ */
+ MOTIONSENSE_CMD_FIFO_INT_ENABLE = 15,

-enum motionsensor_id {
- EC_MOTION_SENSOR_ACCEL_BASE = 0,
- EC_MOTION_SENSOR_ACCEL_LID = 1,
- EC_MOTION_SENSOR_GYRO = 2,
+ /*
+ * Spoof the readings of the sensors. The spoofed readings can be set
+ * to arbitrary values, or will lock to the last read actual values.
+ */
+ MOTIONSENSE_CMD_SPOOF = 16,
+
+ /* Set lid angle for tablet mode detection. */
+ MOTIONSENSE_CMD_TABLET_MODE_LID_ANGLE = 17,

/*
- * Note, if more sensors are added and this count changes, the padding
- * in ec_response_motion_sense dump command must be modified.
+ * Sensor Scale command is a setter/getter command for the calibration
+ * scale.
*/
- EC_MOTION_SENSOR_COUNT = 3
+ MOTIONSENSE_CMD_SENSOR_SCALE = 18,
+
+ /* Number of motionsense sub-commands. */
+ MOTIONSENSE_NUM_CMDS
};

/* List of motion sensor types. */
@@ -1560,6 +2406,7 @@ enum motionsensor_type {
MOTIONSENSE_TYPE_LIGHT = 4,
MOTIONSENSE_TYPE_ACTIVITY = 5,
MOTIONSENSE_TYPE_BARO = 6,
+ MOTIONSENSE_TYPE_SYNC = 7,
MOTIONSENSE_TYPE_MAX,
};

@@ -1567,20 +2414,114 @@ enum motionsensor_type {
enum motionsensor_location {
MOTIONSENSE_LOC_BASE = 0,
MOTIONSENSE_LOC_LID = 1,
+ MOTIONSENSE_LOC_CAMERA = 2,
MOTIONSENSE_LOC_MAX,
};

/* List of motion sensor chips. */
enum motionsensor_chip {
MOTIONSENSE_CHIP_KXCJ9 = 0,
+ MOTIONSENSE_CHIP_LSM6DS0 = 1,
+ MOTIONSENSE_CHIP_BMI160 = 2,
+ MOTIONSENSE_CHIP_SI1141 = 3,
+ MOTIONSENSE_CHIP_SI1142 = 4,
+ MOTIONSENSE_CHIP_SI1143 = 5,
+ MOTIONSENSE_CHIP_KX022 = 6,
+ MOTIONSENSE_CHIP_L3GD20H = 7,
+ MOTIONSENSE_CHIP_BMA255 = 8,
+ MOTIONSENSE_CHIP_BMP280 = 9,
+ MOTIONSENSE_CHIP_OPT3001 = 10,
+ MOTIONSENSE_CHIP_BH1730 = 11,
+ MOTIONSENSE_CHIP_GPIO = 12,
+ MOTIONSENSE_CHIP_LIS2DH = 13,
+ MOTIONSENSE_CHIP_LSM6DSM = 14,
+ MOTIONSENSE_CHIP_LIS2DE = 15,
+ MOTIONSENSE_CHIP_LIS2MDL = 16,
+ MOTIONSENSE_CHIP_LSM6DS3 = 17,
+ MOTIONSENSE_CHIP_MAX,
+};
+
+/* List of orientation positions */
+enum motionsensor_orientation {
+ MOTIONSENSE_ORIENTATION_LANDSCAPE = 0,
+ MOTIONSENSE_ORIENTATION_PORTRAIT = 1,
+ MOTIONSENSE_ORIENTATION_UPSIDE_DOWN_PORTRAIT = 2,
+ MOTIONSENSE_ORIENTATION_UPSIDE_DOWN_LANDSCAPE = 3,
+ MOTIONSENSE_ORIENTATION_UNKNOWN = 4,
+};
+
+struct ec_response_motion_sensor_data {
+ /* Flags for each sensor. */
+ uint8_t flags;
+ /* sensor number the data comes from */
+ uint8_t sensor_num;
+ /* Each sensor is up to 3-axis. */
+ union {
+ int16_t data[3];
+ struct __ec_todo_packed {
+ uint16_t reserved;
+ uint32_t timestamp;
+ };
+ struct __ec_todo_unpacked {
+ uint8_t activity; /* motionsensor_activity */
+ uint8_t state;
+ int16_t add_info[2];
+ };
+ };
+} __ec_todo_packed;
+
+/* Note: used in ec_response_get_next_data */
+struct ec_response_motion_sense_fifo_info {
+ /* Size of the fifo */
+ uint16_t size;
+ /* Amount of space used in the fifo */
+ uint16_t count;
+ /* Timestamp recorded in us.
+ * aka accurate timestamp when host event was triggered.
+ */
+ uint32_t timestamp;
+ /* Total amount of vector lost */
+ uint16_t total_lost;
+ /* Lost events since the last fifo_info, per sensors */
+ uint16_t lost[0];
+} __ec_todo_packed;
+
+struct ec_response_motion_sense_fifo_data {
+ uint32_t number_data;
+ struct ec_response_motion_sensor_data data[0];
+} __ec_todo_packed;
+
+/* List supported activity recognition */
+enum motionsensor_activity {
+ MOTIONSENSE_ACTIVITY_RESERVED = 0,
+ MOTIONSENSE_ACTIVITY_SIG_MOTION = 1,
+ MOTIONSENSE_ACTIVITY_DOUBLE_TAP = 2,
+ MOTIONSENSE_ACTIVITY_ORIENTATION = 3,
};

+struct ec_motion_sense_activity {
+ uint8_t sensor_num;
+ uint8_t activity; /* one of enum motionsensor_activity */
+ uint8_t enable; /* 1: enable, 0: disable */
+ uint8_t reserved;
+ uint16_t parameters[3]; /* activity dependent parameters */
+} __ec_todo_unpacked;
+
/* Module flag masks used for the dump sub-command. */
#define MOTIONSENSE_MODULE_FLAG_ACTIVE (1<<0)

/* Sensor flag masks used for the dump sub-command. */
#define MOTIONSENSE_SENSOR_FLAG_PRESENT (1<<0)

+/*
+ * Flush entry for synchronization.
+ * data contains time stamp
+ */
+#define MOTIONSENSE_SENSOR_FLAG_FLUSH (1<<0)
+#define MOTIONSENSE_SENSOR_FLAG_TIMESTAMP (1<<1)
+#define MOTIONSENSE_SENSOR_FLAG_WAKEUP (1<<2)
+#define MOTIONSENSE_SENSOR_FLAG_TABLET_MODE (1<<3)
+
/*
* Send this value for the data element to only perform a read. If you
* send any other value, the EC will interpret it as data to set and will
@@ -1590,48 +2531,79 @@ enum motionsensor_chip {

#define EC_MOTION_SENSE_INVALID_CALIB_TEMP 0x8000

+/* MOTIONSENSE_CMD_SENSOR_OFFSET subcommand flag */
/* Set Calibration information */
-#define MOTION_SENSE_SET_OFFSET 1
+#define MOTION_SENSE_SET_OFFSET (1 << 0)

-struct ec_response_motion_sensor_data {
- /* Flags for each sensor. */
- uint8_t flags;
- /* Sensor number the data comes from */
- uint8_t sensor_num;
- /* Each sensor is up to 3-axis. */
- union {
- int16_t data[3];
- struct {
- uint16_t rsvd;
- uint32_t timestamp;
- } __packed;
- struct {
- uint8_t activity; /* motionsensor_activity */
- uint8_t state;
- int16_t add_info[2];
- };
- };
-} __packed;
+/* Default Scale value, factor 1. */
+#define MOTION_SENSE_DEFAULT_SCALE (1 << 15)
+
+#define LID_ANGLE_UNRELIABLE 500
+
+enum motionsense_spoof_mode {
+ /* Disable spoof mode. */
+ MOTIONSENSE_SPOOF_MODE_DISABLE = 0,
+
+ /* Enable spoof mode, but use provided component values. */
+ MOTIONSENSE_SPOOF_MODE_CUSTOM,
+
+ /* Enable spoof mode, but use the current sensor values. */
+ MOTIONSENSE_SPOOF_MODE_LOCK_CURRENT,
+
+ /* Query the current spoof mode status for the sensor. */
+ MOTIONSENSE_SPOOF_MODE_QUERY,
+};

struct ec_params_motion_sense {
uint8_t cmd;
union {
- /* Used for MOTIONSENSE_CMD_DUMP. */
- struct {
- /* no args */
+ /* Used for MOTIONSENSE_CMD_DUMP */
+ struct __ec_todo_unpacked {
+ /*
+ * Maximal number of sensor the host is expecting.
+ * 0 means the host is only interested in the number
+ * of sensors controlled by the EC.
+ */
+ uint8_t max_sensor_count;
} dump;

/*
- * Used for MOTIONSENSE_CMD_EC_RATE and
- * MOTIONSENSE_CMD_KB_WAKE_ANGLE.
+ * Used for MOTIONSENSE_CMD_KB_WAKE_ANGLE.
*/
- struct {
- /* Data to set or EC_MOTION_SENSE_NO_VALUE to read. */
+ struct __ec_todo_unpacked {
+ /* Data to set or EC_MOTION_SENSE_NO_VALUE to read.
+ * kb_wake_angle: angle to wakup AP.
+ */
int16_t data;
- } ec_rate, kb_wake_angle;
+ } kb_wake_angle;
+
+ /*
+ * Used for MOTIONSENSE_CMD_INFO, MOTIONSENSE_CMD_DATA
+ * and MOTIONSENSE_CMD_PERFORM_CALIB.
+ */
+ struct __ec_todo_unpacked {
+ uint8_t sensor_num;
+ } info, info_3, data, fifo_flush, perform_calib,
+ list_activities;
+
+ /*
+ * Used for MOTIONSENSE_CMD_EC_RATE, MOTIONSENSE_CMD_SENSOR_ODR
+ * and MOTIONSENSE_CMD_SENSOR_RANGE.
+ */
+ struct __ec_todo_unpacked {
+ uint8_t sensor_num;
+
+ /* Rounding flag, true for round-up, false for down. */
+ uint8_t roundup;
+
+ uint16_t reserved;
+
+ /* Data to set or EC_MOTION_SENSE_NO_VALUE to read. */
+ int32_t data;
+ } ec_rate, sensor_odr, sensor_range;

/* Used for MOTIONSENSE_CMD_SENSOR_OFFSET */
- struct {
+ struct __ec_todo_packed {
uint8_t sensor_num;

/*
@@ -1657,51 +2629,117 @@ struct ec_params_motion_sense {
* Compass: 1/16 uT
*/
int16_t offset[3];
- } __packed sensor_offset;
+ } sensor_offset;

- /* Used for MOTIONSENSE_CMD_INFO. */
- struct {
+ /* Used for MOTIONSENSE_CMD_SENSOR_SCALE */
+ struct __ec_todo_packed {
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;
+ /*
+ * bit 0: If set (MOTION_SENSE_SET_OFFSET), set
+ * the calibration information in the EC.
+ * If unset, just retrieve calibration information.
+ */
+ uint16_t flags;

- /* Rounding flag, true for round-up, false for down. */
- uint8_t roundup;
+ /*
+ * Temperature at calibration, in units of 0.01 C
+ * 0x8000: invalid / unknown.
+ * 0x0: 0C
+ * 0x7fff: +327.67C
+ */
+ int16_t temp;

- uint16_t reserved;
+ /*
+ * Scale for calibration:
+ * By default scale is 1, it is encoded on 16bits:
+ * 1 = 1 << 15
+ * ~2 = 0xFFFF
+ * ~0 = 0.
+ */
+ uint16_t scale[3];
+ } sensor_scale;

- /* Data to set or EC_MOTION_SENSE_NO_VALUE to read. */
- int32_t data;
- } sensor_odr, sensor_range;
+
+ /* Used for MOTIONSENSE_CMD_FIFO_INFO */
+ /* (no params) */
+
+ /* Used for MOTIONSENSE_CMD_FIFO_READ */
+ struct __ec_todo_unpacked {
+ /*
+ * Number of expected vector to return.
+ * EC may return less or 0 if none available.
+ */
+ uint32_t max_data_vector;
+ } fifo_read;
+
+ struct ec_motion_sense_activity set_activity;
+
+ /* Used for MOTIONSENSE_CMD_LID_ANGLE */
+ /* (no params) */
+
+ /* Used for MOTIONSENSE_CMD_FIFO_INT_ENABLE */
+ struct __ec_todo_unpacked {
+ /*
+ * 1: enable, 0 disable fifo,
+ * EC_MOTION_SENSE_NO_VALUE return value.
+ */
+ int8_t enable;
+ } fifo_int_enable;
+
+ /* Used for MOTIONSENSE_CMD_SPOOF */
+ struct __ec_todo_packed {
+ uint8_t sensor_id;
+
+ /* See enum motionsense_spoof_mode. */
+ uint8_t spoof_enable;
+
+ /* Ignored, used for alignment. */
+ uint8_t reserved;
+
+ /* Individual component values to spoof. */
+ int16_t components[3];
+ } spoof;
+
+ /* Used for MOTIONSENSE_CMD_TABLET_MODE_LID_ANGLE. */
+ struct __ec_todo_unpacked {
+ /*
+ * Lid angle threshold for switching between tablet and
+ * clamshell mode.
+ */
+ int16_t lid_angle;
+
+ /*
+ * Hysteresis degree to prevent fluctuations between
+ * clamshell and tablet mode if lid angle keeps
+ * changing around the threshold. Lid motion driver will
+ * use lid_angle + hys_degree to trigger tablet mode and
+ * lid_angle - hys_degree to trigger clamshell mode.
+ */
+ int16_t hys_degree;
+ } tablet_mode_threshold;
};
-} __packed;
+} __ec_todo_packed;

struct ec_response_motion_sense {
union {
- /* Used for MOTIONSENSE_CMD_DUMP. */
- struct {
+ /* Used for MOTIONSENSE_CMD_DUMP */
+ struct __ec_todo_unpacked {
/* Flags representing the motion sensor module. */
uint8_t module_flags;

- /* Number of sensors managed directly by the EC. */
+ /* Number of sensors managed directly by the EC */
uint8_t sensor_count;

/*
- * Sensor data is truncated if response_max is too small
+ * sensor data is truncated if response_max is too small
* for holding all the data.
*/
struct ec_response_motion_sensor_data sensor[0];
} dump;

/* Used for MOTIONSENSE_CMD_INFO. */
- struct {
+ struct __ec_todo_unpacked {
/* Should be element of enum motionsensor_type. */
uint8_t type;

@@ -1712,74 +2750,166 @@ struct ec_response_motion_sense {
uint8_t chip;
} info;

+ /* Used for MOTIONSENSE_CMD_INFO version 3 */
+ struct __ec_todo_unpacked {
+ /* Should be element of enum motionsensor_type. */
+ uint8_t type;
+
+ /* Should be element of enum motionsensor_location. */
+ uint8_t location;
+
+ /* Should be element of enum motionsensor_chip. */
+ uint8_t chip;
+
+ /* Minimum sensor sampling frequency */
+ uint32_t min_frequency;
+
+ /* Maximum sensor sampling frequency */
+ uint32_t max_frequency;
+
+ /* Max number of sensor events that could be in fifo */
+ uint32_t fifo_max_event_count;
+ } info_3;
+
/* Used for MOTIONSENSE_CMD_DATA */
struct ec_response_motion_sensor_data data;

/*
* Used for MOTIONSENSE_CMD_EC_RATE, MOTIONSENSE_CMD_SENSOR_ODR,
- * MOTIONSENSE_CMD_SENSOR_RANGE, and
- * MOTIONSENSE_CMD_KB_WAKE_ANGLE.
+ * MOTIONSENSE_CMD_SENSOR_RANGE,
+ * MOTIONSENSE_CMD_KB_WAKE_ANGLE,
+ * MOTIONSENSE_CMD_FIFO_INT_ENABLE and
+ * MOTIONSENSE_CMD_SPOOF.
*/
- struct {
+ struct __ec_todo_unpacked {
/* Current value of the parameter queried. */
int32_t ret;
- } ec_rate, sensor_odr, sensor_range, kb_wake_angle;
+ } ec_rate, sensor_odr, sensor_range, kb_wake_angle,
+ fifo_int_enable, spoof;

- /* Used for MOTIONSENSE_CMD_SENSOR_OFFSET */
- struct {
+ /*
+ * Used for MOTIONSENSE_CMD_SENSOR_OFFSET,
+ * PERFORM_CALIB.
+ */
+ struct __ec_todo_unpacked {
int16_t temp;
int16_t offset[3];
} sensor_offset, perform_calib;
- };
-} __packed;

-/*****************************************************************************/
-/* USB charging control commands */
+ /* Used for MOTIONSENSE_CMD_SENSOR_SCALE */
+ struct __ec_todo_unpacked {
+ int16_t temp;
+ uint16_t scale[3];
+ } sensor_scale;

-/* Set USB port charging mode */
-#define EC_CMD_USB_CHARGE_SET_MODE 0x30
+ struct ec_response_motion_sense_fifo_info fifo_info, fifo_flush;

-struct ec_params_usb_charge_set_mode {
- uint8_t usb_port_id;
- uint8_t mode;
-} __packed;
+ struct ec_response_motion_sense_fifo_data fifo_read;

-/*****************************************************************************/
-/* Persistent storage for host */
+ struct __ec_todo_packed {
+ uint16_t reserved;
+ uint32_t enabled;
+ uint32_t disabled;
+ } list_activities;
+
+ /* No params for set activity */
+
+ /* Used for MOTIONSENSE_CMD_LID_ANGLE */
+ struct __ec_todo_unpacked {
+ /*
+ * Angle between 0 and 360 degree if available,
+ * LID_ANGLE_UNRELIABLE otherwise.
+ */
+ uint16_t value;
+ } lid_angle;
+
+ /* Used for MOTIONSENSE_CMD_TABLET_MODE_LID_ANGLE. */
+ struct __ec_todo_unpacked {
+ /*
+ * Lid angle threshold for switching between tablet and
+ * clamshell mode.
+ */
+ uint16_t lid_angle;
+
+ /* Hysteresis degree. */
+ uint16_t hys_degree;
+ } tablet_mode_threshold;
+
+ };
+} __ec_todo_packed;
+
+/*****************************************************************************/
+/* Force lid open command */
+
+/* Make lid event always open */
+#define EC_CMD_FORCE_LID_OPEN 0x002C
+
+struct ec_params_force_lid_open {
+ uint8_t enabled;
+} __ec_align1;
+
+/*****************************************************************************/
+/* Configure the behavior of the power button */
+#define EC_CMD_CONFIG_POWER_BUTTON 0x002D
+
+enum ec_config_power_button_flags {
+ /* Enable/Disable power button pulses for x86 devices */
+ EC_POWER_BUTTON_ENABLE_PULSE = (1 << 0),
+};
+
+struct ec_params_config_power_button {
+ /* See enum ec_config_power_button_flags */
+ uint8_t flags;
+} __ec_align1;
+
+/*****************************************************************************/
+/* USB charging control commands */
+
+/* Set USB port charging mode */
+#define EC_CMD_USB_CHARGE_SET_MODE 0x0030
+
+struct ec_params_usb_charge_set_mode {
+ uint8_t usb_port_id;
+ uint8_t mode:7;
+ uint8_t inhibit_charge:1;
+} __ec_align1;
+
+/*****************************************************************************/
+/* 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
+#define EC_CMD_PSTORE_INFO 0x0040

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;
+} __ec_align4;

/*
* Read persistent storage
*
* Response is params.size bytes of data.
*/
-#define EC_CMD_PSTORE_READ 0x41
+#define EC_CMD_PSTORE_READ 0x0041

struct ec_params_pstore_read {
uint32_t offset; /* Byte offset to read */
uint32_t size; /* Size to read in bytes */
-} __packed;
+} __ec_align4;

/* Write persistent storage */
-#define EC_CMD_PSTORE_WRITE 0x42
+#define EC_CMD_PSTORE_WRITE 0x0042

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;
+} __ec_align4;

/*****************************************************************************/
/* Real-time clock */
@@ -1787,21 +2917,21 @@ struct ec_params_pstore_write {
/* RTC params and response structures */
struct ec_params_rtc {
uint32_t time;
-} __packed;
+} __ec_align4;

struct ec_response_rtc {
uint32_t time;
-} __packed;
+} __ec_align4;

/* These use ec_response_rtc */
-#define EC_CMD_RTC_GET_VALUE 0x44
-#define EC_CMD_RTC_GET_ALARM 0x45
+#define EC_CMD_RTC_GET_VALUE 0x0044
+#define EC_CMD_RTC_GET_ALARM 0x0045

/* These all use ec_params_rtc */
-#define EC_CMD_RTC_SET_VALUE 0x46
-#define EC_CMD_RTC_SET_ALARM 0x47
+#define EC_CMD_RTC_SET_VALUE 0x0046
+#define EC_CMD_RTC_SET_ALARM 0x0047

-/* Pass as param to SET_ALARM to clear the current alarm */
+/* Pass as time param to SET_ALARM to clear the current alarm */
#define EC_RTC_ALARM_CLEAR 0

/*****************************************************************************/
@@ -1811,8 +2941,8 @@ struct ec_response_rtc {
#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
+#define EC_CMD_PORT80_LAST_BOOT 0x0048
+#define EC_CMD_PORT80_READ 0x0048

enum ec_port80_subcmd {
EC_PORT80_GET_INFO = 0,
@@ -1822,29 +2952,72 @@ enum ec_port80_subcmd {
struct ec_params_port80_read {
uint16_t subcmd;
union {
- struct {
+ struct __ec_todo_unpacked {
uint32_t offset;
uint32_t num_entries;
} read_buffer;
};
-} __packed;
+} __ec_todo_packed;

struct ec_response_port80_read {
union {
- struct {
+ struct __ec_todo_unpacked {
uint32_t writes;
uint32_t history_size;
uint32_t last_boot;
} get_info;
- struct {
+ struct __ec_todo_unpacked {
uint16_t codes[EC_PORT80_SIZE_MAX];
} data;
};
-} __packed;
+} __ec_todo_packed;

struct ec_response_port80_last_boot {
uint16_t code;
-} __packed;
+} __ec_align2;
+
+/*****************************************************************************/
+/* Temporary secure storage for host verified boot use */
+
+/* Number of bytes in a vstore slot */
+#define EC_VSTORE_SLOT_SIZE 64
+
+/* Maximum number of vstore slots */
+#define EC_VSTORE_SLOT_MAX 32
+
+/* Get persistent storage info */
+#define EC_CMD_VSTORE_INFO 0x0049
+struct ec_response_vstore_info {
+ /* Indicates which slots are locked */
+ uint32_t slot_locked;
+ /* Total number of slots available */
+ uint8_t slot_count;
+} __ec_align_size1;
+
+/*
+ * Read temporary secure storage
+ *
+ * Response is EC_VSTORE_SLOT_SIZE bytes of data.
+ */
+#define EC_CMD_VSTORE_READ 0x004A
+
+struct ec_params_vstore_read {
+ uint8_t slot; /* Slot to read from */
+} __ec_align1;
+
+struct ec_response_vstore_read {
+ uint8_t data[EC_VSTORE_SLOT_SIZE];
+} __ec_align1;
+
+/*
+ * Write temporary secure storage and lock it.
+ */
+#define EC_CMD_VSTORE_WRITE 0x004B
+
+struct ec_params_vstore_write {
+ uint8_t slot; /* Slot to write to */
+ uint8_t data[EC_VSTORE_SLOT_SIZE];
+} __ec_align1;

/*****************************************************************************/
/* Thermal engine commands. Note that there are two implementations. We'll
@@ -1853,8 +3026,8 @@ struct ec_response_port80_last_boot {
* 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
+#define EC_CMD_THERMAL_SET_THRESHOLD 0x0050
+#define EC_CMD_THERMAL_GET_THRESHOLD 0x0051

/* The version 0 structs are opaque. You have to know what they are for
* the get/set commands to make any sense.
@@ -1865,17 +3038,17 @@ struct ec_params_thermal_set_threshold {
uint8_t sensor_type;
uint8_t threshold_id;
uint16_t value;
-} __packed;
+} __ec_align2;

/* Version 0 - get */
struct ec_params_thermal_get_threshold {
uint8_t sensor_type;
uint8_t threshold_id;
-} __packed;
+} __ec_align1;

struct ec_response_thermal_get_threshold {
uint16_t value;
-} __packed;
+} __ec_align2;


/* The version 1 structs are visible. */
@@ -1887,19 +3060,39 @@ enum ec_temp_thresholds {
EC_TEMP_THRESH_COUNT
};

-/* Thermal configuration for one temperature sensor. Temps are in degrees K.
+/*
+ * Thermal configuration for one temperature sensor. Temps are in degrees K.
* Zero values will be silently ignored by the thermal task.
+ *
+ * Set 'temp_host' value allows thermal task to trigger some event with 1 degree
+ * hysteresis.
+ * For example,
+ * temp_host[EC_TEMP_THRESH_HIGH] = 300 K
+ * temp_host_release[EC_TEMP_THRESH_HIGH] = 0 K
+ * EC will throttle ap when temperature >= 301 K, and release throttling when
+ * temperature <= 299 K.
+ *
+ * Set 'temp_host_release' value allows thermal task has a custom hysteresis.
+ * For example,
+ * temp_host[EC_TEMP_THRESH_HIGH] = 300 K
+ * temp_host_release[EC_TEMP_THRESH_HIGH] = 295 K
+ * EC will throttle ap when temperature >= 301 K, and release throttling when
+ * temperature <= 294 K.
+ *
+ * Note that this structure is a sub-structure of
+ * ec_params_thermal_set_threshold_v1, but maintains its alignment there.
*/
struct ec_thermal_config {
uint32_t temp_host[EC_TEMP_THRESH_COUNT]; /* levels of hotness */
+ uint32_t temp_host_release[EC_TEMP_THRESH_COUNT]; /* release levels */
uint32_t temp_fan_off; /* no active cooling needed */
uint32_t temp_fan_max; /* max active cooling needed */
-} __packed;
+} __ec_align4;

/* Version 1 - get config for one sensor. */
struct ec_params_thermal_get_threshold_v1 {
uint32_t sensor_num;
-} __packed;
+} __ec_align4;
/* This returns a struct ec_thermal_config */

/* Version 1 - set config for one sensor.
@@ -1907,51 +3100,82 @@ struct ec_params_thermal_get_threshold_v1 {
struct ec_params_thermal_set_threshold_v1 {
uint32_t sensor_num;
struct ec_thermal_config cfg;
-} __packed;
+} __ec_align4;
/* This returns no data */

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

/* Toggle automatic fan control */
-#define EC_CMD_THERMAL_AUTO_FAN_CTRL 0x52
+#define EC_CMD_THERMAL_AUTO_FAN_CTRL 0x0052

-/* Get TMP006 calibration data */
-#define EC_CMD_TMP006_GET_CALIBRATION 0x53
+/* Version 1 of input params */
+struct ec_params_auto_fan_ctrl_v1 {
+ uint8_t fan_idx;
+} __ec_align1;
+
+/* Get/Set TMP006 calibration data */
+#define EC_CMD_TMP006_GET_CALIBRATION 0x0053
+#define EC_CMD_TMP006_SET_CALIBRATION 0x0054
+
+/*
+ * The original TMP006 calibration only needed four params, but now we need
+ * more. Since the algorithm is nothing but magic numbers anyway, we'll leave
+ * the params opaque. The v1 "get" response will include the algorithm number
+ * and how many params it requires. That way we can change the EC code without
+ * needing to update this file. We can also use a different algorithm on each
+ * sensor.
+ */

+/* This is the same struct for both v0 and v1. */
struct ec_params_tmp006_get_calibration {
uint8_t index;
-} __packed;
+} __ec_align1;

-struct ec_response_tmp006_get_calibration {
+/* Version 0 */
+struct ec_response_tmp006_get_calibration_v0 {
float s0;
float b0;
float b1;
float b2;
-} __packed;
+} __ec_align4;

-/* Set TMP006 calibration data */
-#define EC_CMD_TMP006_SET_CALIBRATION 0x54
-
-struct ec_params_tmp006_set_calibration {
+struct ec_params_tmp006_set_calibration_v0 {
uint8_t index;
- uint8_t reserved[3]; /* Reserved; set 0 */
+ uint8_t reserved[3];
float s0;
float b0;
float b1;
float b2;
-} __packed;
+} __ec_align4;
+
+/* Version 1 */
+struct ec_response_tmp006_get_calibration_v1 {
+ uint8_t algorithm;
+ uint8_t num_params;
+ uint8_t reserved[2];
+ float val[0];
+} __ec_align4;
+
+struct ec_params_tmp006_set_calibration_v1 {
+ uint8_t index;
+ uint8_t algorithm;
+ uint8_t num_params;
+ uint8_t reserved;
+ float val[0];
+} __ec_align4;
+

/* Read raw TMP006 data */
-#define EC_CMD_TMP006_GET_RAW 0x55
+#define EC_CMD_TMP006_GET_RAW 0x0055

struct ec_params_tmp006_get_raw {
uint8_t index;
-} __packed;
+} __ec_align1;

struct ec_response_tmp006_get_raw {
int32_t t; /* In 1/100 K */
int32_t v; /* In nV */
-};
+} __ec_align4;

/*****************************************************************************/
/* MKBP - Matrix KeyBoard Protocol */
@@ -1966,24 +3190,24 @@ struct ec_response_tmp006_get_raw {
* to obtain the instantaneous state, use EC_CMD_MKBP_INFO with the type
* EC_MKBP_INFO_CURRENT and event EC_MKBP_EVENT_KEY_MATRIX.
*/
-#define EC_CMD_MKBP_STATE 0x60
+#define EC_CMD_MKBP_STATE 0x0060

/*
* Provide information about various MKBP things. See enum ec_mkbp_info_type.
*/
-#define EC_CMD_MKBP_INFO 0x61
+#define EC_CMD_MKBP_INFO 0x0061

struct ec_response_mkbp_info {
uint32_t rows;
uint32_t cols;
/* Formerly "switches", which was 0. */
uint8_t reserved;
-} __packed;
+} __ec_align_size1;

struct ec_params_mkbp_info {
uint8_t info_type;
uint8_t event_type;
-} __packed;
+} __ec_align1;

enum ec_mkbp_info_type {
/*
@@ -2025,17 +3249,28 @@ enum ec_mkbp_info_type {
};

/* Simulate key press */
-#define EC_CMD_MKBP_SIMULATE_KEY 0x62
+#define EC_CMD_MKBP_SIMULATE_KEY 0x0062

struct ec_params_mkbp_simulate_key {
uint8_t col;
uint8_t row;
uint8_t pressed;
-} __packed;
+} __ec_align1;
+
+#define EC_CMD_GET_KEYBOARD_ID 0x0063
+
+struct ec_response_keyboard_id {
+ uint32_t keyboard_id;
+} __ec_align4;
+
+enum keyboard_id {
+ KEYBOARD_ID_UNSUPPORTED = 0,
+ KEYBOARD_ID_UNREADABLE = 0xffffffff,
+};

/* Configure keyboard scanning */
-#define EC_CMD_MKBP_SET_CONFIG 0x64
-#define EC_CMD_MKBP_GET_CONFIG 0x65
+#define EC_CMD_MKBP_SET_CONFIG 0x0064
+#define EC_CMD_MKBP_GET_CONFIG 0x0065

/* flags */
enum mkbp_config_flags {
@@ -2052,7 +3287,12 @@ enum mkbp_config_valid {
EC_MKBP_VALID_FIFO_MAX_DEPTH = 1 << 7,
};

-/* Configuration for our key scanning algorithm */
+/*
+ * Configuration for our key scanning algorithm.
+ *
+ * Note that this is used as a sub-structure of
+ * ec_{params/response}_mkbp_get_config.
+ */
struct ec_mkbp_config {
uint32_t valid_mask; /* valid fields */
uint8_t flags; /* some flags (enum mkbp_config_flags) */
@@ -2072,18 +3312,18 @@ struct ec_mkbp_config {
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;
+} __ec_align_size1;

struct ec_params_mkbp_set_config {
struct ec_mkbp_config config;
-} __packed;
+} __ec_align_size1;

struct ec_response_mkbp_get_config {
struct ec_mkbp_config config;
-} __packed;
+} __ec_align_size1;

/* Run the key scan emulation */
-#define EC_CMD_KEYSCAN_SEQ_CTRL 0x66
+#define EC_CMD_KEYSCAN_SEQ_CTRL 0x0066

enum ec_keyscan_seq_cmd {
EC_KEYSCAN_SEQ_STATUS = 0, /* Get status information */
@@ -2103,18 +3343,18 @@ enum ec_collect_flags {

struct ec_collect_item {
uint8_t flags; /* some flags (enum ec_collect_flags) */
-};
+} __ec_align1;

struct ec_params_keyscan_seq_ctrl {
uint8_t cmd; /* Command to send (enum ec_keyscan_seq_cmd) */
union {
- struct {
+ struct __ec_align1 {
uint8_t active; /* still active */
uint8_t num_items; /* number of items */
/* Current item being presented */
uint8_t cur_item;
} status;
- struct {
+ struct __ec_todo_unpacked {
/*
* Absolute time for this scan, measured from the
* start of the sequence.
@@ -2122,29 +3362,40 @@ struct ec_params_keyscan_seq_ctrl {
uint32_t time_us;
uint8_t scan[0]; /* keyscan data */
} add;
- struct {
+ struct __ec_align1 {
uint8_t start_item; /* First item to return */
uint8_t num_items; /* Number of items to return */
} collect;
};
-} __packed;
+} __ec_todo_packed;

struct ec_result_keyscan_seq_ctrl {
union {
- struct {
+ struct __ec_todo_unpacked {
uint8_t num_items; /* Number of items */
/* Data for each item */
struct ec_collect_item item[0];
} collect;
};
-} __packed;
+} __ec_todo_packed;

/*
- * Command for retrieving the next pending MKBP event from the EC device
+ * Get the next pending MKBP event.
*
- * The device replies with UNAVAILABLE if there aren't any pending events.
+ * Returns EC_RES_UNAVAILABLE if there is no event pending.
+ */
+#define EC_CMD_GET_NEXT_EVENT 0x0067
+
+#define EC_MKBP_HAS_MORE_EVENTS_SHIFT 7
+
+/*
+ * We use the most significant bit of the event type to indicate to the host
+ * that the EC has more MKBP events available to provide.
*/
-#define EC_CMD_GET_NEXT_EVENT 0x67
+#define EC_MKBP_HAS_MORE_EVENTS (1 << EC_MKBP_HAS_MORE_EVENTS_SHIFT)
+
+/* The mask to apply to get the raw event type */
+#define EC_MKBP_EVENT_TYPE_MASK ((1 << EC_MKBP_HAS_MORE_EVENTS_SHIFT) - 1)

enum ec_mkbp_event {
/* Keyboard matrix changed. The event data is the new matrix state. */
@@ -2162,9 +3413,21 @@ enum ec_mkbp_event {
/* The state of the switches have changed. */
EC_MKBP_EVENT_SWITCH = 4,

- /* EC sent a sysrq command */
+ /* New Fingerprint sensor event, the event data is fp_events bitmap. */
+ EC_MKBP_EVENT_FINGERPRINT = 5,
+
+ /*
+ * Sysrq event: send emulated sysrq. The event data is sysrq,
+ * corresponding to the key to be pressed.
+ */
EC_MKBP_EVENT_SYSRQ = 6,

+ /*
+ * New 64-bit host event.
+ * The event data is 8 bytes of host event flags.
+ */
+ EC_MKBP_EVENT_HOST_EVENT64 = 7,
+
/* Notify the AP that something happened on CEC */
EC_MKBP_EVENT_CEC_EVENT = 8,

@@ -2174,65 +3437,140 @@ enum ec_mkbp_event {
/* Number of MKBP events */
EC_MKBP_EVENT_COUNT,
};
+BUILD_ASSERT(EC_MKBP_EVENT_COUNT <= EC_MKBP_EVENT_TYPE_MASK);

-union ec_response_get_next_data {
- uint8_t key_matrix[13];
+union __ec_align_offset1 ec_response_get_next_data {
+ uint8_t key_matrix[13];

/* Unaligned */
- uint32_t host_event;
+ uint32_t host_event;
+ uint64_t host_event64;
+
+ struct __ec_todo_unpacked {
+ /* For aligning the fifo_info */
+ uint8_t reserved[3];
+ struct ec_response_motion_sense_fifo_info info;
+ } sensor_fifo;
+
+ uint32_t buttons;
+
+ uint32_t switches;

- uint32_t buttons;
- uint32_t switches;
- uint32_t sysrq;
-} __packed;
+ uint32_t fp_events;

-union ec_response_get_next_data_v1 {
+ uint32_t sysrq;
+
+ /* CEC events from enum mkbp_cec_event */
+ uint32_t cec_events;
+};
+
+union __ec_align_offset1 ec_response_get_next_data_v1 {
uint8_t key_matrix[16];
+
+ /* Unaligned */
uint32_t host_event;
+ uint64_t host_event64;
+
+ struct __ec_todo_unpacked {
+ /* For aligning the fifo_info */
+ uint8_t reserved[3];
+ struct ec_response_motion_sense_fifo_info info;
+ } sensor_fifo;
+
uint32_t buttons;
+
uint32_t switches;
+
+ uint32_t fp_events;
+
uint32_t sysrq;
+
+ /* CEC events from enum mkbp_cec_event */
uint32_t cec_events;
+
uint8_t cec_message[16];
-} __packed;
+};
+BUILD_ASSERT(sizeof(union ec_response_get_next_data_v1) == 16);

struct ec_response_get_next_event {
uint8_t event_type;
/* Followed by event data if any */
union ec_response_get_next_data data;
-} __packed;
+} __ec_align1;

struct ec_response_get_next_event_v1 {
uint8_t event_type;
/* Followed by event data if any */
union ec_response_get_next_data_v1 data;
-} __packed;
+} __ec_align1;

/* Bit indices for buttons and switches.*/
/* Buttons */
#define EC_MKBP_POWER_BUTTON 0
#define EC_MKBP_VOL_UP 1
#define EC_MKBP_VOL_DOWN 2
+#define EC_MKBP_RECOVERY 3

/* Switches */
#define EC_MKBP_LID_OPEN 0
#define EC_MKBP_TABLET_MODE 1
#define EC_MKBP_BASE_ATTACHED 2

+/* Run keyboard factory test scanning */
+#define EC_CMD_KEYBOARD_FACTORY_TEST 0x0068
+
+struct ec_response_keyboard_factory_test {
+ uint16_t shorted; /* Keyboard pins are shorted */
+} __ec_align2;
+
+/* Fingerprint events in 'fp_events' for EC_MKBP_EVENT_FINGERPRINT */
+#define EC_MKBP_FP_RAW_EVENT(fp_events) ((fp_events) & 0x00FFFFFF)
+#define EC_MKBP_FP_ERRCODE(fp_events) ((fp_events) & 0x0000000F)
+#define EC_MKBP_FP_ENROLL_PROGRESS_OFFSET 4
+#define EC_MKBP_FP_ENROLL_PROGRESS(fpe) (((fpe) & 0x00000FF0) \
+ >> EC_MKBP_FP_ENROLL_PROGRESS_OFFSET)
+#define EC_MKBP_FP_MATCH_IDX_OFFSET 12
+#define EC_MKBP_FP_MATCH_IDX_MASK 0x0000F000
+#define EC_MKBP_FP_MATCH_IDX(fpe) (((fpe) & EC_MKBP_FP_MATCH_IDX_MASK) \
+ >> EC_MKBP_FP_MATCH_IDX_OFFSET)
+#define EC_MKBP_FP_ENROLL (1 << 27)
+#define EC_MKBP_FP_MATCH (1 << 28)
+#define EC_MKBP_FP_FINGER_DOWN (1 << 29)
+#define EC_MKBP_FP_FINGER_UP (1 << 30)
+#define EC_MKBP_FP_IMAGE_READY (1 << 31)
+/* code given by EC_MKBP_FP_ERRCODE() when EC_MKBP_FP_ENROLL is set */
+#define EC_MKBP_FP_ERR_ENROLL_OK 0
+#define EC_MKBP_FP_ERR_ENROLL_LOW_QUALITY 1
+#define EC_MKBP_FP_ERR_ENROLL_IMMOBILE 2
+#define EC_MKBP_FP_ERR_ENROLL_LOW_COVERAGE 3
+#define EC_MKBP_FP_ERR_ENROLL_INTERNAL 5
+/* Can be used to detect if image was usable for enrollment or not. */
+#define EC_MKBP_FP_ERR_ENROLL_PROBLEM_MASK 1
+/* code given by EC_MKBP_FP_ERRCODE() when EC_MKBP_FP_MATCH is set */
+#define EC_MKBP_FP_ERR_MATCH_NO 0
+#define EC_MKBP_FP_ERR_MATCH_NO_INTERNAL 6
+#define EC_MKBP_FP_ERR_MATCH_NO_TEMPLATES 7
+#define EC_MKBP_FP_ERR_MATCH_NO_LOW_QUALITY 2
+#define EC_MKBP_FP_ERR_MATCH_NO_LOW_COVERAGE 4
+#define EC_MKBP_FP_ERR_MATCH_YES 1
+#define EC_MKBP_FP_ERR_MATCH_YES_UPDATED 3
+#define EC_MKBP_FP_ERR_MATCH_YES_UPDATE_FAILED 5
+
+
/*****************************************************************************/
/* Temperature sensor commands */

/* Read temperature sensor info */
-#define EC_CMD_TEMP_SENSOR_GET_INFO 0x70
+#define EC_CMD_TEMP_SENSOR_GET_INFO 0x0070

struct ec_params_temp_sensor_get_info {
uint8_t id;
-} __packed;
+} __ec_align1;

struct ec_response_temp_sensor_get_info {
char sensor_name[32];
uint8_t sensor_type;
-} __packed;
+} __ec_align1;

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

@@ -2245,49 +3583,131 @@ struct ec_response_temp_sensor_get_info {
/*****************************************************************************/
/* Host event commands */

+
+/* Obsolete. New implementation should use EC_CMD_HOST_EVENT instead */
/*
* Host event mask params and response structures, shared by all of the host
* event commands below.
*/
struct ec_params_host_event_mask {
uint32_t mask;
-} __packed;
+} __ec_align4;

struct ec_response_host_event_mask {
uint32_t mask;
-} __packed;
+} __ec_align4;

/* 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
+#define EC_CMD_HOST_EVENT_GET_B 0x0087
+#define EC_CMD_HOST_EVENT_GET_SMI_MASK 0x0088
+#define EC_CMD_HOST_EVENT_GET_SCI_MASK 0x0089
+#define EC_CMD_HOST_EVENT_GET_WAKE_MASK 0x008D

/* These all use ec_params_host_event_mask */
-#define EC_CMD_HOST_EVENT_SET_SMI_MASK 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
+#define EC_CMD_HOST_EVENT_SET_SMI_MASK 0x008A
+#define EC_CMD_HOST_EVENT_SET_SCI_MASK 0x008B
+#define EC_CMD_HOST_EVENT_CLEAR 0x008C
+#define EC_CMD_HOST_EVENT_SET_WAKE_MASK 0x008E
+#define EC_CMD_HOST_EVENT_CLEAR_B 0x008F
+
+/*
+ * Unified host event programming interface - Should be used by newer versions
+ * of BIOS/OS to program host events and masks
+ */
+
+struct ec_params_host_event {
+
+ /* Action requested by host - one of enum ec_host_event_action. */
+ uint8_t action;
+
+ /*
+ * Mask type that the host requested the action on - one of
+ * enum ec_host_event_mask_type.
+ */
+ uint8_t mask_type;
+
+ /* Set to 0, ignore on read */
+ uint16_t reserved;
+
+ /* Value to be used in case of set operations. */
+ uint64_t value;
+} __ec_align4;
+
+/*
+ * Response structure returned by EC_CMD_HOST_EVENT.
+ * Update the value on a GET request. Set to 0 on GET/CLEAR
+ */
+
+struct ec_response_host_event {
+
+ /* Mask value in case of get operation */
+ uint64_t value;
+} __ec_align4;
+
+enum ec_host_event_action {
+ /*
+ * params.value is ignored. Value of mask_type populated
+ * in response.value
+ */
+ EC_HOST_EVENT_GET,
+
+ /* Bits in params.value are set */
+ EC_HOST_EVENT_SET,
+
+ /* Bits in params.value are cleared */
+ EC_HOST_EVENT_CLEAR,
+};
+
+enum ec_host_event_mask_type {
+
+ /* Main host event copy */
+ EC_HOST_EVENT_MAIN,
+
+ /* Copy B of host events */
+ EC_HOST_EVENT_B,
+
+ /* SCI Mask */
+ EC_HOST_EVENT_SCI_MASK,
+
+ /* SMI Mask */
+ EC_HOST_EVENT_SMI_MASK,
+
+ /* Mask of events that should be always reported in hostevents */
+ EC_HOST_EVENT_ALWAYS_REPORT_MASK,
+
+ /* Active wake mask */
+ EC_HOST_EVENT_ACTIVE_WAKE_MASK,
+
+ /* Lazy wake mask for S0ix */
+ EC_HOST_EVENT_LAZY_WAKE_MASK_S0IX,
+
+ /* Lazy wake mask for S3 */
+ EC_HOST_EVENT_LAZY_WAKE_MASK_S3,
+
+ /* Lazy wake mask for S5 */
+ EC_HOST_EVENT_LAZY_WAKE_MASK_S5,
+};
+
+#define EC_CMD_HOST_EVENT 0x00A4

/*****************************************************************************/
/* Switch commands */

/* Enable/disable LCD backlight */
-#define EC_CMD_SWITCH_ENABLE_BKLIGHT 0x90
+#define EC_CMD_SWITCH_ENABLE_BKLIGHT 0x0090

struct ec_params_switch_enable_backlight {
uint8_t enabled;
-} __packed;
+} __ec_align1;

/* Enable/disable WLAN/Bluetooth */
-#define EC_CMD_SWITCH_ENABLE_WIRELESS 0x91
+#define EC_CMD_SWITCH_ENABLE_WIRELESS 0x0091
#define EC_VER_SWITCH_ENABLE_WIRELESS 1

/* Version 0 params; no response */
struct ec_params_switch_enable_wireless_v0 {
uint8_t enabled;
-} __packed;
+} __ec_align1;

/* Version 1 params */
struct ec_params_switch_enable_wireless_v1 {
@@ -2306,7 +3726,7 @@ struct ec_params_switch_enable_wireless_v1 {

/* Which flags to copy from suspend_flags */
uint8_t suspend_mask;
-} __packed;
+} __ec_align1;

/* Version 1 response */
struct ec_response_switch_enable_wireless_v1 {
@@ -2315,55 +3735,56 @@ struct ec_response_switch_enable_wireless_v1 {

/* Flags to leave enabled in S3 */
uint8_t suspend_flags;
-} __packed;
+} __ec_align1;

/*****************************************************************************/
/* GPIO commands. Only available on EC if write protect has been disabled. */

/* Set GPIO output value */
-#define EC_CMD_GPIO_SET 0x92
+#define EC_CMD_GPIO_SET 0x0092

struct ec_params_gpio_set {
char name[32];
uint8_t val;
-} __packed;
+} __ec_align1;

/* Get GPIO value */
-#define EC_CMD_GPIO_GET 0x93
+#define EC_CMD_GPIO_GET 0x0093

/* Version 0 of input params and response */
struct ec_params_gpio_get {
char name[32];
-} __packed;
+} __ec_align1;
+
struct ec_response_gpio_get {
uint8_t val;
-} __packed;
+} __ec_align1;

/* Version 1 of input params and response */
struct ec_params_gpio_get_v1 {
uint8_t subcmd;
union {
- struct {
+ struct __ec_align1 {
char name[32];
} get_value_by_name;
- struct {
+ struct __ec_align1 {
uint8_t index;
} get_info;
};
-} __packed;
+} __ec_align1;

struct ec_response_gpio_get_v1 {
union {
- struct {
+ struct __ec_align1 {
uint8_t val;
} get_value_by_name, get_count;
- struct {
+ struct __ec_todo_unpacked {
uint8_t val;
char name[32];
uint32_t flags;
} get_info;
};
-} __packed;
+} __ec_todo_packed;

enum gpio_get_subcmd {
EC_GPIO_GET_BY_NAME = 0,
@@ -2375,25 +3796,28 @@ enum gpio_get_subcmd {
/* 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.
+ * CAUTION: These commands are deprecated, and are not supported anymore in EC
+ * builds >= 8398.0.0 (see crosbug.com/p/23570).
+ *
+ * Use EC_CMD_I2C_PASSTHRU instead.
*/

/* Read I2C bus */
-#define EC_CMD_I2C_READ 0x94
+#define EC_CMD_I2C_READ 0x0094

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;
+} __ec_align_size1;
+
struct ec_response_i2c_read {
uint16_t data;
-} __packed;
+} __ec_align2;

/* Write I2C bus */
-#define EC_CMD_I2C_WRITE 0x95
+#define EC_CMD_I2C_WRITE 0x0095

struct ec_params_i2c_write {
uint16_t data;
@@ -2401,7 +3825,7 @@ struct ec_params_i2c_write {
uint8_t write_size; /* Either 8 or 16. */
uint8_t port;
uint8_t offset;
-} __packed;
+} __ec_align_size1;

/*****************************************************************************/
/* Charge state commands. Only available when flash write protect unlocked. */
@@ -2409,7 +3833,7 @@ struct ec_params_i2c_write {
/* Force charge state machine to stop charging the battery or force it to
* discharge the battery.
*/
-#define EC_CMD_CHARGE_CONTROL 0x96
+#define EC_CMD_CHARGE_CONTROL 0x0096
#define EC_VER_CHARGE_CONTROL 1

enum ec_charge_control_mode {
@@ -2420,13 +3844,12 @@ enum ec_charge_control_mode {

struct ec_params_charge_control {
uint32_t mode; /* enum charge_control_mode */
-} __packed;
+} __ec_align4;

/*****************************************************************************/
-/* 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
+#define EC_CMD_CONSOLE_SNAPSHOT 0x0097

/*
* Read data from the saved snapshot. If the subcmd parameter is
@@ -2440,7 +3863,7 @@ struct ec_params_charge_control {
* Response is null-terminated string. Empty string, if there is no more
* remaining output.
*/
-#define EC_CMD_CONSOLE_READ 0x98
+#define EC_CMD_CONSOLE_READ 0x0098

enum ec_console_read_subcmd {
CONSOLE_READ_NEXT = 0,
@@ -2449,7 +3872,7 @@ enum ec_console_read_subcmd {

struct ec_params_console_read_v1 {
uint8_t subcmd; /* enum ec_console_read_subcmd */
-} __packed;
+} __ec_align1;

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

@@ -2460,14 +3883,13 @@ struct ec_params_console_read_v1 {
* EC_RES_SUCCESS if the command was successful.
* EC_RES_ERROR if the cut off command failed.
*/
-
-#define EC_CMD_BATTERY_CUT_OFF 0x99
+#define EC_CMD_BATTERY_CUT_OFF 0x0099

#define EC_BATTERY_CUTOFF_FLAG_AT_SHUTDOWN (1 << 0)

struct ec_params_battery_cutoff {
uint8_t flags;
-} __packed;
+} __ec_align1;

/*****************************************************************************/
/* USB port mux control. */
@@ -2475,11 +3897,11 @@ struct ec_params_battery_cutoff {
/*
* Switch USB mux or return to automatic switching.
*/
-#define EC_CMD_USB_MUX 0x9a
+#define EC_CMD_USB_MUX 0x009A

struct ec_params_usb_mux {
uint8_t mux;
-} __packed;
+} __ec_align1;

/*****************************************************************************/
/* LDOs / FETs control. */
@@ -2492,25 +3914,25 @@ enum ec_ldo_state {
/*
* Switch on/off a LDO.
*/
-#define EC_CMD_LDO_SET 0x9b
+#define EC_CMD_LDO_SET 0x009B

struct ec_params_ldo_set {
uint8_t index;
uint8_t state;
-} __packed;
+} __ec_align1;

/*
* Get LDO state.
*/
-#define EC_CMD_LDO_GET 0x9c
+#define EC_CMD_LDO_GET 0x009C

struct ec_params_ldo_get {
uint8_t index;
-} __packed;
+} __ec_align1;

struct ec_response_ldo_get {
uint8_t state;
-} __packed;
+} __ec_align1;

/*****************************************************************************/
/* Power info. */
@@ -2518,7 +3940,7 @@ struct ec_response_ldo_get {
/*
* Get power info.
*/
-#define EC_CMD_POWER_INFO 0x9d
+#define EC_CMD_POWER_INFO 0x009D

struct ec_response_power_info {
uint32_t usb_dev_type;
@@ -2526,12 +3948,12 @@ struct ec_response_power_info {
uint16_t voltage_system;
uint16_t current_system;
uint16_t usb_current_limit;
-} __packed;
+} __ec_align4;

/*****************************************************************************/
/* I2C passthru command */

-#define EC_CMD_I2C_PASSTHRU 0x9e
+#define EC_CMD_I2C_PASSTHRU 0x009E

/* Read data; if not present, message is a write */
#define EC_I2C_FLAG_READ (1 << 15)
@@ -2548,25 +3970,25 @@ struct ec_response_power_info {
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;
+} __ec_align2;

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;
+} __ec_align2;

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;
+} __ec_align1;

/*****************************************************************************/
/* Power button hang detect */

-#define EC_CMD_HANG_DETECT 0x9f
+#define EC_CMD_HANG_DETECT 0x009F

/* Reasons to start hang detection timer */
/* Power button pressed */
@@ -2616,7 +4038,7 @@ struct ec_params_hang_detect {

/* Timeout in msec before generating warm reboot, if enabled */
uint16_t warm_reboot_timeout_msec;
-} __packed;
+} __ec_align4;

/*****************************************************************************/
/* Commands for battery charging */
@@ -2625,7 +4047,7 @@ struct ec_params_hang_detect {
* 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
+#define EC_CMD_CHARGE_STATE 0x00A0

/* Subcommands for this host command */
enum charge_state_command {
@@ -2645,6 +4067,11 @@ enum charge_state_params {
CS_PARAM_CHG_INPUT_CURRENT, /* charger input current limit */
CS_PARAM_CHG_STATUS, /* charger-specific status */
CS_PARAM_CHG_OPTION, /* charger-specific options */
+ CS_PARAM_LIMIT_POWER, /*
+ * Check if power is limited due to
+ * low battery and / or a weak external
+ * charger. READ ONLY.
+ */
/* How many so far? */
CS_NUM_BASE_PARAMS,

@@ -2652,30 +4079,39 @@ enum charge_state_params {
CS_PARAM_CUSTOM_PROFILE_MIN = 0x10000,
CS_PARAM_CUSTOM_PROFILE_MAX = 0x1ffff,

+ /* Range for CONFIG_CHARGE_STATE_DEBUG params */
+ CS_PARAM_DEBUG_MIN = 0x20000,
+ CS_PARAM_DEBUG_CTL_MODE = 0x20000,
+ CS_PARAM_DEBUG_MANUAL_MODE,
+ CS_PARAM_DEBUG_SEEMS_DEAD,
+ CS_PARAM_DEBUG_SEEMS_DISCONNECTED,
+ CS_PARAM_DEBUG_BATT_REMOVED,
+ CS_PARAM_DEBUG_MANUAL_CURRENT,
+ CS_PARAM_DEBUG_MANUAL_VOLTAGE,
+ CS_PARAM_DEBUG_MAX = 0x2ffff,
+
/* Other custom param ranges go here... */
};

struct ec_params_charge_state {
uint8_t cmd; /* enum charge_state_command */
union {
- struct {
- /* no args */
- } get_state;
+ /* get_state has no args */

- struct {
+ struct __ec_todo_unpacked {
uint32_t param; /* enum charge_state_param */
} get_param;

- struct {
+ struct __ec_todo_unpacked {
uint32_t param; /* param to set */
uint32_t value; /* value to set */
} set_param;
};
-} __packed;
+} __ec_todo_packed;

struct ec_response_charge_state {
union {
- struct {
+ struct __ec_align4 {
int ac;
int chg_voltage;
int chg_current;
@@ -2683,24 +4119,23 @@ struct ec_response_charge_state {
int batt_state_of_charge;
} get_state;

- struct {
+ struct __ec_align4 {
uint32_t value;
} get_param;
- struct {
- /* no return values */
- } set_param;
+
+ /* set_param returns no args */
};
-} __packed;
+} __ec_align4;


/*
* Set maximum battery charging current.
*/
-#define EC_CMD_CHARGE_CURRENT_LIMIT 0xa1
+#define EC_CMD_CHARGE_CURRENT_LIMIT 0x00A1

struct ec_params_current_limit {
uint32_t limit; /* in mA */
-} __packed;
+} __ec_align4;

/*
* Set maximum external voltage / current.
@@ -2711,58 +4146,134 @@ struct ec_params_current_limit {
struct ec_params_external_power_limit_v1 {
uint16_t current_lim; /* in mA, or EC_POWER_LIMIT_NONE to clear limit */
uint16_t voltage_lim; /* in mV, or EC_POWER_LIMIT_NONE to clear limit */
-} __packed;
+} __ec_align2;

#define EC_POWER_LIMIT_NONE 0xffff

+/*
+ * Set maximum voltage & current of a dedicated charge port
+ */
+#define EC_CMD_OVERRIDE_DEDICATED_CHARGER_LIMIT 0x00A3
+
+struct ec_params_dedicated_charger_limit {
+ uint16_t current_lim; /* in mA */
+ uint16_t voltage_lim; /* in mV */
+} __ec_align2;
+
+/*****************************************************************************/
+/* Hibernate/Deep Sleep Commands */
+
+/* Set the delay before going into hibernation. */
+#define EC_CMD_HIBERNATION_DELAY 0x00A8
+
+struct ec_params_hibernation_delay {
+ /*
+ * Seconds to wait in G3 before hibernate. Pass in 0 to read the
+ * current settings without changing them.
+ */
+ uint32_t seconds;
+} __ec_align4;
+
+struct ec_response_hibernation_delay {
+ /*
+ * The current time in seconds in which the system has been in the G3
+ * state. This value is reset if the EC transitions out of G3.
+ */
+ uint32_t time_g3;
+
+ /*
+ * The current time remaining in seconds until the EC should hibernate.
+ * This value is also reset if the EC transitions out of G3.
+ */
+ uint32_t time_remaining;
+
+ /*
+ * The current time in seconds that the EC should wait in G3 before
+ * hibernating.
+ */
+ uint32_t hibernate_delay;
+} __ec_align4;
+
/* Inform the EC when entering a sleep state */
-#define EC_CMD_HOST_SLEEP_EVENT 0xa9
+#define EC_CMD_HOST_SLEEP_EVENT 0x00A9

enum host_sleep_event {
HOST_SLEEP_EVENT_S3_SUSPEND = 1,
HOST_SLEEP_EVENT_S3_RESUME = 2,
HOST_SLEEP_EVENT_S0IX_SUSPEND = 3,
- HOST_SLEEP_EVENT_S0IX_RESUME = 4
+ HOST_SLEEP_EVENT_S0IX_RESUME = 4,
+ /* S3 suspend with additional enabled wake sources */
+ HOST_SLEEP_EVENT_S3_WAKEABLE_SUSPEND = 5,
};

struct ec_params_host_sleep_event {
uint8_t sleep_event;
-} __packed;
+} __ec_align1;
+
+/*****************************************************************************/
+/* Device events */
+#define EC_CMD_DEVICE_EVENT 0x00AA
+
+enum ec_device_event {
+ EC_DEVICE_EVENT_TRACKPAD,
+ EC_DEVICE_EVENT_DSP,
+ EC_DEVICE_EVENT_WIFI,
+};
+
+enum ec_device_event_param {
+ /* Get and clear pending device events */
+ EC_DEVICE_EVENT_PARAM_GET_CURRENT_EVENTS,
+ /* Get device event mask */
+ EC_DEVICE_EVENT_PARAM_GET_ENABLED_EVENTS,
+ /* Set device event mask */
+ EC_DEVICE_EVENT_PARAM_SET_ENABLED_EVENTS,
+};
+
+#define EC_DEVICE_EVENT_MASK(event_code) (1UL << (event_code % 32))
+
+struct ec_params_device_event {
+ uint32_t event_mask;
+ uint8_t param;
+} __ec_align_size1;
+
+struct ec_response_device_event {
+ uint32_t event_mask;
+} __ec_align4;

/*****************************************************************************/
/* 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
+#define EC_CMD_SB_READ_WORD 0x00B0
+#define EC_CMD_SB_WRITE_WORD 0x00B1

/* Get / Set string smart battery parameters
* formatted as SMBUS "block".
*/
-#define EC_CMD_SB_READ_BLOCK 0xb2
-#define EC_CMD_SB_WRITE_BLOCK 0xb3
+#define EC_CMD_SB_READ_BLOCK 0x00B2
+#define EC_CMD_SB_WRITE_BLOCK 0x00B3

struct ec_params_sb_rd {
uint8_t reg;
-} __packed;
+} __ec_align1;

struct ec_response_sb_rd_word {
uint16_t value;
-} __packed;
+} __ec_align2;

struct ec_params_sb_wr_word {
uint8_t reg;
uint16_t value;
-} __packed;
+} __ec_align1;

struct ec_response_sb_rd_block {
uint8_t data[32];
-} __packed;
+} __ec_align1;

struct ec_params_sb_wr_block {
uint8_t reg;
uint16_t data[32];
-} __packed;
+} __ec_align1;

/*****************************************************************************/
/* Battery vendor parameters
@@ -2773,7 +4284,7 @@ struct ec_params_sb_wr_block {
* requested value.
*/

-#define EC_CMD_BATTERY_VENDOR_PARAM 0xb4
+#define EC_CMD_BATTERY_VENDOR_PARAM 0x00B4

enum ec_battery_vendor_param_mode {
BATTERY_VENDOR_PARAM_MODE_GET = 0,
@@ -2784,257 +4295,105 @@ struct ec_params_battery_vendor_param {
uint32_t param;
uint32_t value;
uint8_t mode;
-} __packed;
+} __ec_align_size1;

struct ec_response_battery_vendor_param {
uint32_t value;
-} __packed;
+} __ec_align4;

/*****************************************************************************/
-/* Commands for I2S recording on audio codec. */
-
-#define EC_CMD_CODEC_I2S 0x00BC
-
-enum ec_codec_i2s_subcmd {
- EC_CODEC_SET_SAMPLE_DEPTH = 0x0,
- EC_CODEC_SET_GAIN = 0x1,
- EC_CODEC_GET_GAIN = 0x2,
- EC_CODEC_I2S_ENABLE = 0x3,
- EC_CODEC_I2S_SET_CONFIG = 0x4,
- EC_CODEC_I2S_SET_TDM_CONFIG = 0x5,
- EC_CODEC_I2S_SET_BCLK = 0x6,
+/*
+ * Smart Battery Firmware Update Commands
+ */
+#define EC_CMD_SB_FW_UPDATE 0x00B5
+
+enum ec_sb_fw_update_subcmd {
+ EC_SB_FW_UPDATE_PREPARE = 0x0,
+ EC_SB_FW_UPDATE_INFO = 0x1, /*query sb info */
+ EC_SB_FW_UPDATE_BEGIN = 0x2, /*check if protected */
+ EC_SB_FW_UPDATE_WRITE = 0x3, /*check if protected */
+ EC_SB_FW_UPDATE_END = 0x4,
+ EC_SB_FW_UPDATE_STATUS = 0x5,
+ EC_SB_FW_UPDATE_PROTECT = 0x6,
+ EC_SB_FW_UPDATE_MAX = 0x7,
};

-enum ec_sample_depth_value {
- EC_CODEC_SAMPLE_DEPTH_16 = 0,
- EC_CODEC_SAMPLE_DEPTH_24 = 1,
-};
+#define SB_FW_UPDATE_CMD_WRITE_BLOCK_SIZE 32
+#define SB_FW_UPDATE_CMD_STATUS_SIZE 2
+#define SB_FW_UPDATE_CMD_INFO_SIZE 8

-enum ec_i2s_config {
- EC_DAI_FMT_I2S = 0,
- EC_DAI_FMT_RIGHT_J = 1,
- EC_DAI_FMT_LEFT_J = 2,
- EC_DAI_FMT_PCM_A = 3,
- EC_DAI_FMT_PCM_B = 4,
- EC_DAI_FMT_PCM_TDM = 5,
-};
+struct ec_sb_fw_update_header {
+ uint16_t subcmd; /* enum ec_sb_fw_update_subcmd */
+ uint16_t fw_id; /* firmware id */
+} __ec_align4;

-struct ec_param_codec_i2s {
- /*
- * enum ec_codec_i2s_subcmd
- */
- uint8_t cmd;
+struct ec_params_sb_fw_update {
+ struct ec_sb_fw_update_header hdr;
union {
- /*
- * EC_CODEC_SET_SAMPLE_DEPTH
- * Value should be one of ec_sample_depth_value.
- */
- uint8_t depth;
-
- /*
- * EC_CODEC_SET_GAIN
- * Value should be 0~43 for both channels.
- */
- struct ec_param_codec_i2s_set_gain {
- uint8_t left;
- uint8_t right;
- } __packed gain;
-
- /*
- * EC_CODEC_I2S_ENABLE
- * 1 to enable, 0 to disable.
- */
- uint8_t i2s_enable;
-
- /*
- * EC_CODEC_I2S_SET_COFNIG
- * Value should be one of ec_i2s_config.
- */
- uint8_t i2s_config;
+ /* EC_SB_FW_UPDATE_PREPARE = 0x0 */
+ /* EC_SB_FW_UPDATE_INFO = 0x1 */
+ /* EC_SB_FW_UPDATE_BEGIN = 0x2 */
+ /* EC_SB_FW_UPDATE_END = 0x4 */
+ /* EC_SB_FW_UPDATE_STATUS = 0x5 */
+ /* EC_SB_FW_UPDATE_PROTECT = 0x6 */
+ /* Those have no args */
+
+ /* EC_SB_FW_UPDATE_WRITE = 0x3 */
+ struct __ec_align4 {
+ uint8_t data[SB_FW_UPDATE_CMD_WRITE_BLOCK_SIZE];
+ } write;
+ };
+} __ec_align4;

- /*
- * EC_CODEC_I2S_SET_TDM_CONFIG
- * Value should be one of ec_i2s_config.
- */
- struct ec_param_codec_i2s_tdm {
- /*
- * 0 to 496
- */
- int16_t ch0_delay;
- /*
- * -1 to 496
- */
- int16_t ch1_delay;
- uint8_t adjacent_to_ch0;
- uint8_t adjacent_to_ch1;
- } __packed tdm_param;
+struct ec_response_sb_fw_update {
+ union {
+ /* EC_SB_FW_UPDATE_INFO = 0x1 */
+ struct __ec_align1 {
+ uint8_t data[SB_FW_UPDATE_CMD_INFO_SIZE];
+ } info;

- /*
- * EC_CODEC_I2S_SET_BCLK
- */
- uint32_t bclk;
+ /* EC_SB_FW_UPDATE_STATUS = 0x5 */
+ struct __ec_align1 {
+ uint8_t data[SB_FW_UPDATE_CMD_STATUS_SIZE];
+ } status;
};
-} __packed;
+} __ec_align1;

/*
- * For subcommand EC_CODEC_GET_GAIN.
+ * Entering Verified Boot Mode Command
+ * Default mode is VBOOT_MODE_NORMAL if EC did not receive this command.
+ * Valid Modes are: normal, developer, and recovery.
*/
-struct ec_response_codec_gain {
- uint8_t left;
- uint8_t right;
-} __packed;
+#define EC_CMD_ENTERING_MODE 0x00B6

-/*****************************************************************************/
-/* System commands */
+struct ec_params_entering_mode {
+ int vboot_mode;
+} __ec_align4;
+
+#define VBOOT_MODE_NORMAL 0
+#define VBOOT_MODE_DEVELOPER 1
+#define VBOOT_MODE_RECOVERY 2

+/*****************************************************************************/
/*
- * TODO(crosbug.com/p/23747): This is a confusing name, since it doesn't
- * necessarily reboot the EC. Rename to "image" or something similar?
+ * I2C passthru protection command: Protects I2C tunnels against access on
+ * certain addresses (board-specific).
*/
-#define EC_CMD_REBOOT_EC 0xd2
+#define EC_CMD_I2C_PASSTHRU_PROTECT 0x00B7

-/* 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 */
+enum ec_i2c_passthru_protect_subcmd {
+ EC_CMD_I2C_PASSTHRU_PROTECT_STATUS = 0x0,
+ EC_CMD_I2C_PASSTHRU_PROTECT_ENABLE = 0x1,
};

-/* 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
+struct ec_params_i2c_passthru_protect {
+ uint8_t subcmd;
+ uint8_t port; /* I2C port number */
+} __ec_align1;

-/* Current version of ACPI memory address space */
-#define EC_ACPI_MEM_VERSION_CURRENT 1
+struct ec_response_i2c_passthru_protect {
+ uint8_t status; /* Status flags (0: unlocked, 1: locked) */
+} __ec_align1;


/*****************************************************************************/
@@ -3043,7 +4402,8 @@ struct ec_params_reboot_ec {
*
* These commands are for sending and receiving message via HDMI CEC
*/
-#define EC_MAX_CEC_MSG_LEN 16
+
+#define MAX_CEC_MSG_LEN 16

/* CEC message from the AP to be written on the CEC bus */
#define EC_CMD_CEC_WRITE_MSG 0x00B8
@@ -3053,8 +4413,8 @@ struct ec_params_reboot_ec {
* @msg: message content to write to the CEC bus
*/
struct ec_params_cec_write {
- uint8_t msg[EC_MAX_CEC_MSG_LEN];
-} __packed;
+ uint8_t msg[MAX_CEC_MSG_LEN];
+} __ec_align1;

/* Set various CEC parameters */
#define EC_CMD_CEC_SET 0x00BA
@@ -3063,14 +4423,14 @@ struct ec_params_cec_write {
* struct ec_params_cec_set - CEC parameters set
* @cmd: parameter type, can be CEC_CMD_ENABLE or CEC_CMD_LOGICAL_ADDRESS
* @val: in case cmd is CEC_CMD_ENABLE, this field can be 0 to disable CEC
- * or 1 to enable CEC functionality, in case cmd is CEC_CMD_LOGICAL_ADDRESS,
- * this field encodes the requested logical address between 0 and 15
- * or 0xff to unregister
+ * or 1 to enable CEC functionality, in case cmd is
+ * CEC_CMD_LOGICAL_ADDRESS, this field encodes the requested logical
+ * address between 0 and 15 or 0xff to unregister
*/
struct ec_params_cec_set {
uint8_t cmd; /* enum cec_command */
uint8_t val;
-} __packed;
+} __ec_align1;

/* Read various CEC parameters */
#define EC_CMD_CEC_GET 0x00BB
@@ -3081,7 +4441,7 @@ struct ec_params_cec_set {
*/
struct ec_params_cec_get {
uint8_t cmd; /* enum cec_command */
-} __packed;
+} __ec_align1;

/**
* struct ec_response_cec_get - CEC parameters get response
@@ -3092,10 +4452,10 @@ struct ec_params_cec_get {
*/
struct ec_response_cec_get {
uint8_t val;
-} __packed;
+} __ec_align1;

/* CEC parameters command */
-enum ec_cec_command {
+enum cec_command {
/* CEC reading, writing and events enable */
CEC_CMD_ENABLE,
/* CEC logical address */
@@ -3105,11 +4465,140 @@ enum ec_cec_command {
/* Events from CEC to AP */
enum mkbp_cec_event {
/* Outgoing message was acknowledged by a follower */
- EC_MKBP_CEC_SEND_OK = BIT(0),
+ EC_MKBP_CEC_SEND_OK = 1 << 0,
/* Outgoing message was not acknowledged */
- EC_MKBP_CEC_SEND_FAILED = BIT(1),
+ EC_MKBP_CEC_SEND_FAILED = 1 << 1,
+};
+
+/*****************************************************************************/
+
+/* Commands for I2S recording on audio codec. */
+
+#define EC_CMD_CODEC_I2S 0x00BC
+#define EC_WOV_I2S_SAMPLE_RATE 48000
+
+enum ec_codec_i2s_subcmd {
+ EC_CODEC_SET_SAMPLE_DEPTH = 0x0,
+ EC_CODEC_SET_GAIN = 0x1,
+ EC_CODEC_GET_GAIN = 0x2,
+ EC_CODEC_I2S_ENABLE = 0x3,
+ EC_CODEC_I2S_SET_CONFIG = 0x4,
+ EC_CODEC_I2S_SET_TDM_CONFIG = 0x5,
+ EC_CODEC_I2S_SET_BCLK = 0x6,
+ EC_CODEC_I2S_SUBCMD_COUNT = 0x7,
+};
+
+enum ec_sample_depth_value {
+ EC_CODEC_SAMPLE_DEPTH_16 = 0,
+ EC_CODEC_SAMPLE_DEPTH_24 = 1,
+};
+
+enum ec_i2s_config {
+ EC_DAI_FMT_I2S = 0,
+ EC_DAI_FMT_RIGHT_J = 1,
+ EC_DAI_FMT_LEFT_J = 2,
+ EC_DAI_FMT_PCM_A = 3,
+ EC_DAI_FMT_PCM_B = 4,
+ EC_DAI_FMT_PCM_TDM = 5,
+};
+
+/*
+ * For subcommand EC_CODEC_GET_GAIN.
+ */
+struct __ec_align1 ec_codec_i2s_gain {
+ uint8_t left;
+ uint8_t right;
+};
+
+struct __ec_todo_unpacked ec_param_codec_i2s_tdm {
+ int16_t ch0_delay; /* 0 to 496 */
+ int16_t ch1_delay; /* -1 to 496 */
+ uint8_t adjacent_to_ch0;
+ uint8_t adjacent_to_ch1;
+};
+
+struct __ec_todo_packed ec_param_codec_i2s {
+ /* enum ec_codec_i2s_subcmd */
+ uint8_t cmd;
+ union {
+ /*
+ * EC_CODEC_SET_SAMPLE_DEPTH
+ * Value should be one of ec_sample_depth_value.
+ */
+ uint8_t depth;
+
+ /*
+ * EC_CODEC_SET_GAIN
+ * Value should be 0~43 for both channels.
+ */
+ struct ec_codec_i2s_gain gain;
+
+ /*
+ * EC_CODEC_I2S_ENABLE
+ * 1 to enable, 0 to disable.
+ */
+ uint8_t i2s_enable;
+
+ /*
+ * EC_CODEC_I2S_SET_CONFIG
+ * Value should be one of ec_i2s_config.
+ */
+ uint8_t i2s_config;
+
+ /*
+ * EC_CODEC_I2S_SET_TDM_CONFIG
+ * Value should be one of ec_i2s_config.
+ */
+ struct ec_param_codec_i2s_tdm tdm_param;
+
+ /*
+ * EC_CODEC_I2S_SET_BCLK
+ */
+ uint32_t bclk;
+ };
+};
+
+
+/*****************************************************************************/
+
+/* System commands */
+
+/*
+ * TODO(crosbug.com/p/23747): This is a confusing name, since it doesn't
+ * necessarily reboot the EC. Rename to "image" or something similar?
+ */
+#define EC_CMD_REBOOT_EC 0x00D2
+
+/* Command */
+enum ec_reboot_cmd {
+ EC_REBOOT_CANCEL = 0, /* Cancel a pending reboot */
+ EC_REBOOT_JUMP_RO = 1, /* Jump to RO without rebooting */
+ EC_REBOOT_JUMP_RW = 2, /* Jump to active RW without rebooting */
+ /* (command 3 was jump to RW-B) */
+ EC_REBOOT_COLD = 4, /* Cold-reboot */
+ EC_REBOOT_DISABLE_JUMP = 5, /* Disable jump until next reboot */
+ EC_REBOOT_HIBERNATE = 6, /* Hibernate EC */
+ EC_REBOOT_HIBERNATE_CLEAR_AP_OFF = 7, /* and clears AP_OFF flag */
};

+/* Flags for ec_params_reboot_ec.reboot_flags */
+#define EC_REBOOT_FLAG_RESERVED0 (1 << 0) /* Was recovery request */
+#define EC_REBOOT_FLAG_ON_AP_SHUTDOWN (1 << 1) /* Reboot after AP shutdown */
+#define EC_REBOOT_FLAG_SWITCH_RW_SLOT (1 << 2) /* Switch RW slot */
+
+struct ec_params_reboot_ec {
+ uint8_t cmd; /* enum ec_reboot_cmd */
+ uint8_t flags; /* See EC_REBOOT_FLAG_* */
+} __ec_align1;
+
+/*
+ * Get information on last EC panic.
+ *
+ * Returns variable-length platform-dependent panic information. See panic.h
+ * for details.
+ */
+#define EC_CMD_GET_PANIC_INFO 0x00D3
+
/*****************************************************************************/
/*
* Special commands
@@ -3127,7 +4616,7 @@ enum mkbp_cec_event {
*
* Use EC_CMD_REBOOT_EC to reboot the EC more politely.
*/
-#define EC_CMD_REBOOT 0xd1 /* Think "die" */
+#define EC_CMD_REBOOT 0x00D1 /* Think "die" */

/*
* Resend last response (not supported on LPC).
@@ -3136,7 +4625,7 @@ enum mkbp_cec_event {
* there was no previous command, or the previous command's response was too
* big to save.
*/
-#define EC_CMD_RESEND_RESPONSE 0xdb
+#define EC_CMD_RESEND_RESPONSE 0x00DB

/*
* This header byte on a command indicate version 0. Any header byte less
@@ -3148,9 +4637,7 @@ enum mkbp_cec_event {
*
* The old EC interface must not use commands 0xdc or higher.
*/
-#define EC_CMD_VERSION0 0xdc
-
-#endif /* !__ACPI__ */
+#define EC_CMD_VERSION0 0x00DC

/*****************************************************************************/
/*
@@ -3160,21 +4647,56 @@ enum mkbp_cec_event {
*/

/* EC to PD MCU exchange status command */
-#define EC_CMD_PD_EXCHANGE_STATUS 0x100
+#define EC_CMD_PD_EXCHANGE_STATUS 0x0100
+#define EC_VER_PD_EXCHANGE_STATUS 2
+
+enum pd_charge_state {
+ PD_CHARGE_NO_CHANGE = 0, /* Don't change charge state */
+ PD_CHARGE_NONE, /* No charging allowed */
+ PD_CHARGE_5V, /* 5V charging only */
+ PD_CHARGE_MAX /* Charge at max voltage */
+};

/* Status of EC being sent to PD */
+#define EC_STATUS_HIBERNATING (1 << 0)
+
struct ec_params_pd_status {
- int8_t batt_soc; /* battery state of charge */
-} __packed;
+ uint8_t status; /* EC status */
+ int8_t batt_soc; /* battery state of charge */
+ uint8_t charge_state; /* charging state (from enum pd_charge_state) */
+} __ec_align1;

/* Status of PD being sent back to EC */
+#define PD_STATUS_HOST_EVENT (1 << 0) /* Forward host event to AP */
+#define PD_STATUS_IN_RW (1 << 1) /* Running RW image */
+#define PD_STATUS_JUMPED_TO_IMAGE (1 << 2) /* Current image was jumped to */
+#define PD_STATUS_TCPC_ALERT_0 (1 << 3) /* Alert active in port 0 TCPC */
+#define PD_STATUS_TCPC_ALERT_1 (1 << 4) /* Alert active in port 1 TCPC */
+#define PD_STATUS_TCPC_ALERT_2 (1 << 5) /* Alert active in port 2 TCPC */
+#define PD_STATUS_TCPC_ALERT_3 (1 << 6) /* Alert active in port 3 TCPC */
+#define PD_STATUS_EC_INT_ACTIVE (PD_STATUS_TCPC_ALERT_0 | \
+ PD_STATUS_TCPC_ALERT_1 | \
+ PD_STATUS_HOST_EVENT)
struct ec_response_pd_status {
- int8_t status; /* PD MCU status */
- uint32_t curr_lim_ma; /* input current limit */
-} __packed;
+ uint32_t curr_lim_ma; /* input current limit */
+ uint16_t status; /* PD MCU status */
+ int8_t active_charge_port; /* active charging port */
+} __ec_align_size1;
+
+/* AP to PD MCU host event status command, cleared on read */
+#define EC_CMD_PD_HOST_EVENT_STATUS 0x0104
+
+/* PD MCU host event status bits */
+#define PD_EVENT_UPDATE_DEVICE (1 << 0)
+#define PD_EVENT_POWER_CHANGE (1 << 1)
+#define PD_EVENT_IDENTITY_RECEIVED (1 << 2)
+#define PD_EVENT_DATA_SWAP (1 << 3)
+struct ec_response_host_event_status {
+ uint32_t status; /* PD MCU host event status */
+} __ec_align4;

/* Set USB type-C port role and muxes */
-#define EC_CMD_USB_PD_CONTROL 0x101
+#define EC_CMD_USB_PD_CONTROL 0x0101

enum usb_pd_control_role {
USB_PD_CTRL_ROLE_NO_CHANGE = 0,
@@ -3182,6 +4704,8 @@ enum usb_pd_control_role {
USB_PD_CTRL_ROLE_TOGGLE_OFF = 2,
USB_PD_CTRL_ROLE_FORCE_SINK = 3,
USB_PD_CTRL_ROLE_FORCE_SOURCE = 4,
+ USB_PD_CTRL_ROLE_FREEZE = 5,
+ USB_PD_CTRL_ROLE_COUNT
};

enum usb_pd_control_mux {
@@ -3191,6 +4715,7 @@ enum usb_pd_control_mux {
USB_PD_CTRL_MUX_DP = 3,
USB_PD_CTRL_MUX_DOCK = 4,
USB_PD_CTRL_MUX_AUTO = 5,
+ USB_PD_CTRL_MUX_COUNT
};

enum usb_pd_control_swap {
@@ -3206,42 +4731,49 @@ struct ec_params_usb_pd_control {
uint8_t role;
uint8_t mux;
uint8_t swap;
-} __packed;
+} __ec_align1;

#define PD_CTRL_RESP_ENABLED_COMMS (1 << 0) /* Communication enabled */
#define PD_CTRL_RESP_ENABLED_CONNECTED (1 << 1) /* Device connected */
#define PD_CTRL_RESP_ENABLED_PD_CAPABLE (1 << 2) /* Partner is PD capable */

-#define PD_CTRL_RESP_ROLE_POWER BIT(0) /* 0=SNK/1=SRC */
-#define PD_CTRL_RESP_ROLE_DATA BIT(1) /* 0=UFP/1=DFP */
-#define PD_CTRL_RESP_ROLE_VCONN BIT(2) /* Vconn status */
-#define PD_CTRL_RESP_ROLE_DR_POWER BIT(3) /* Partner is dualrole power */
-#define PD_CTRL_RESP_ROLE_DR_DATA BIT(4) /* Partner is dualrole data */
-#define PD_CTRL_RESP_ROLE_USB_COMM BIT(5) /* Partner USB comm capable */
-#define PD_CTRL_RESP_ROLE_EXT_POWERED BIT(6) /* Partner externally powerd */
+#define PD_CTRL_RESP_ROLE_POWER (1 << 0) /* 0=SNK/1=SRC */
+#define PD_CTRL_RESP_ROLE_DATA (1 << 1) /* 0=UFP/1=DFP */
+#define PD_CTRL_RESP_ROLE_VCONN (1 << 2) /* Vconn status */
+#define PD_CTRL_RESP_ROLE_DR_POWER (1 << 3) /* Partner is dualrole power */
+#define PD_CTRL_RESP_ROLE_DR_DATA (1 << 4) /* Partner is dualrole data */
+#define PD_CTRL_RESP_ROLE_USB_COMM (1 << 5) /* Partner USB comm capable */
+#define PD_CTRL_RESP_ROLE_EXT_POWERED (1 << 6) /* Partner externally powerd */
+
+struct ec_response_usb_pd_control {
+ uint8_t enabled;
+ uint8_t role;
+ uint8_t polarity;
+ uint8_t state;
+} __ec_align1;

struct ec_response_usb_pd_control_v1 {
uint8_t enabled;
uint8_t role;
uint8_t polarity;
char state[32];
-} __packed;
+} __ec_align1;

-#define EC_CMD_USB_PD_PORTS 0x102
+#define EC_CMD_USB_PD_PORTS 0x0102

/* Maximum number of PD ports on a device, num_ports will be <= this */
#define EC_USB_PD_MAX_PORTS 8

struct ec_response_usb_pd_ports {
uint8_t num_ports;
-} __packed;
+} __ec_align1;

-#define EC_CMD_USB_PD_POWER_INFO 0x103
+#define EC_CMD_USB_PD_POWER_INFO 0x0103

#define PD_POWER_CHARGING_PORT 0xff
struct ec_params_usb_pd_power_info {
uint8_t port;
-} __packed;
+} __ec_align1;

enum usb_chg_type {
USB_CHG_TYPE_NONE,
@@ -3254,6 +4786,7 @@ enum usb_chg_type {
USB_CHG_TYPE_OTHER,
USB_CHG_TYPE_VBUS,
USB_CHG_TYPE_UNKNOWN,
+ USB_CHG_TYPE_DEDICATED,
};
enum usb_power_roles {
USB_PD_PORT_POWER_DISCONNECTED,
@@ -3267,7 +4800,7 @@ struct usb_chg_measures {
uint16_t voltage_now;
uint16_t current_max;
uint16_t current_lim;
-} __packed;
+} __ec_align2;

struct ec_response_usb_pd_power_info {
uint8_t role;
@@ -3276,11 +4809,8 @@ struct ec_response_usb_pd_power_info {
uint8_t reserved1;
struct usb_chg_measures meas;
uint32_t max_power;
-} __packed;
+} __ec_align4;

-struct ec_params_usb_pd_info_request {
- uint8_t port;
-} __packed;

/*
* This command will return the number of USB PD charge port + the number
@@ -3290,7 +4820,47 @@ struct ec_params_usb_pd_info_request {
#define EC_CMD_CHARGE_PORT_COUNT 0x0105
struct ec_response_charge_port_count {
uint8_t port_count;
-} __packed;
+} __ec_align1;
+
+/* Write USB-PD device FW */
+#define EC_CMD_USB_PD_FW_UPDATE 0x0110
+
+enum usb_pd_fw_update_cmds {
+ USB_PD_FW_REBOOT,
+ USB_PD_FW_FLASH_ERASE,
+ USB_PD_FW_FLASH_WRITE,
+ USB_PD_FW_ERASE_SIG,
+};
+
+struct ec_params_usb_pd_fw_update {
+ uint16_t dev_id;
+ uint8_t cmd;
+ uint8_t port;
+ uint32_t size; /* Size to write in bytes */
+ /* Followed by data to write */
+} __ec_align4;
+
+/* Write USB-PD Accessory RW_HASH table entry */
+#define EC_CMD_USB_PD_RW_HASH_ENTRY 0x0111
+/* RW hash is first 20 bytes of SHA-256 of RW section */
+#define PD_RW_HASH_SIZE 20
+struct ec_params_usb_pd_rw_hash_entry {
+ uint16_t dev_id;
+ uint8_t dev_rw_hash[PD_RW_HASH_SIZE];
+ uint8_t reserved; /*
+ * For alignment of current_image
+ * TODO(rspangler) but it's not aligned!
+ * Should have been reserved[2].
+ */
+ uint32_t current_image; /* One of ec_current_image */
+} __ec_align1;
+
+/* Read USB-PD Accessory info */
+#define EC_CMD_USB_PD_DEV_INFO 0x0112
+
+struct ec_params_usb_pd_info_request {
+ uint8_t port;
+} __ec_align1;

/* Read USB-PD Device discovery info */
#define EC_CMD_USB_PD_DISCOVERY 0x0113
@@ -3298,7 +4868,7 @@ struct ec_params_usb_pd_discovery_entry {
uint16_t vid; /* USB-IF VID */
uint16_t pid; /* USB-IF PID */
uint8_t ptype; /* product type (hub,periph,cable,ama) */
-} __packed;
+} __ec_align_size1;

/* Override default charge behavior */
#define EC_CMD_PD_CHARGE_PORT_OVERRIDE 0x0114
@@ -3312,9 +4882,13 @@ enum usb_pd_override_ports {

struct ec_params_charge_port_override {
int16_t override_port; /* Override port# */
-} __packed;
+} __ec_align2;

-/* Read (and delete) one entry of PD event log */
+/*
+ * Read (and delete) one entry of PD event log.
+ * TODO(crbug.com/751742): Make this host command more generic to accommodate
+ * future non-PD logs that use the same internal EC event_log.
+ */
#define EC_CMD_PD_GET_LOG_ENTRY 0x0115

struct ec_response_pd_log {
@@ -3323,7 +4897,7 @@ struct ec_response_pd_log {
uint8_t size_port; /* [7:5] port number [4:0] payload size in bytes */
uint16_t data; /* type-defined data payload */
uint8_t payload[0]; /* optional additional data payload: 0..16 bytes */
-} __packed;
+} __ec_align4;

/* The timestamp is the microsecond counter shifted to get about a ms. */
#define PD_LOG_TIMESTAMP_SHIFT 10 /* 1 LSB = 1024us */
@@ -3363,11 +4937,11 @@ struct ec_response_pd_log {
* the data field contains the port state flags as defined below :
*/
/* Port partner is a dual role device */
-#define CHARGE_FLAGS_DUAL_ROLE BIT(15)
+#define CHARGE_FLAGS_DUAL_ROLE (1 << 15)
/* Port is the pending override port */
-#define CHARGE_FLAGS_DELAYED_OVERRIDE BIT(14)
+#define CHARGE_FLAGS_DELAYED_OVERRIDE (1 << 14)
/* Port is the override port */
-#define CHARGE_FLAGS_OVERRIDE BIT(13)
+#define CHARGE_FLAGS_OVERRIDE (1 << 13)
/* Charger type */
#define CHARGE_FLAGS_TYPE_SHIFT 3
#define CHARGE_FLAGS_TYPE_MASK (0xf << CHARGE_FLAGS_TYPE_SHIFT)
@@ -3389,35 +4963,698 @@ struct mcdp_version {
uint8_t major;
uint8_t minor;
uint16_t build;
-} __packed;
+} __ec_align4;

struct mcdp_info {
uint8_t family[2];
uint8_t chipid[2];
struct mcdp_version irom;
struct mcdp_version fw;
-} __packed;
+} __ec_align4;

/* struct mcdp_info field decoding */
#define MCDP_CHIPID(chipid) ((chipid[0] << 8) | chipid[1])
#define MCDP_FAMILY(family) ((family[0] << 8) | family[1])

+/* Get/Set USB-PD Alternate mode info */
+#define EC_CMD_USB_PD_GET_AMODE 0x0116
+struct ec_params_usb_pd_get_mode_request {
+ uint16_t svid_idx; /* SVID index to get */
+ uint8_t port; /* port */
+} __ec_align_size1;
+
+struct ec_params_usb_pd_get_mode_response {
+ uint16_t svid; /* SVID */
+ uint16_t opos; /* Object Position */
+ uint32_t vdo[6]; /* Mode VDOs */
+} __ec_align4;
+
+#define EC_CMD_USB_PD_SET_AMODE 0x0117
+
+enum pd_mode_cmd {
+ PD_EXIT_MODE = 0,
+ PD_ENTER_MODE = 1,
+ /* Not a command. Do NOT remove. */
+ PD_MODE_CMD_COUNT,
+};
+
+struct ec_params_usb_pd_set_mode_request {
+ uint32_t cmd; /* enum pd_mode_cmd */
+ uint16_t svid; /* SVID to set */
+ uint8_t opos; /* Object Position */
+ uint8_t port; /* port */
+} __ec_align4;
+
+/* Ask the PD MCU to record a log of a requested type */
+#define EC_CMD_PD_WRITE_LOG_ENTRY 0x0118
+
+struct ec_params_pd_write_log_entry {
+ uint8_t type; /* event type : see PD_EVENT_xx above */
+ uint8_t port; /* port#, or 0 for events unrelated to a given port */
+} __ec_align1;
+
+
+/* Control USB-PD chip */
+#define EC_CMD_PD_CONTROL 0x0119
+
+enum ec_pd_control_cmd {
+ PD_SUSPEND = 0, /* Suspend the PD chip (EC: stop talking to PD) */
+ PD_RESUME, /* Resume the PD chip (EC: start talking to PD) */
+ PD_RESET, /* Force reset the PD chip */
+ PD_CONTROL_DISABLE, /* Disable further calls to this command */
+ PD_CHIP_ON, /* Power on the PD chip */
+};
+
+struct ec_params_pd_control {
+ uint8_t chip; /* chip id */
+ uint8_t subcmd;
+} __ec_align1;
+
/* Get info about USB-C SS muxes */
-#define EC_CMD_USB_PD_MUX_INFO 0x11a
+#define EC_CMD_USB_PD_MUX_INFO 0x011A

struct ec_params_usb_pd_mux_info {
uint8_t port; /* USB-C port number */
-} __packed;
+} __ec_align1;

/* Flags representing mux state */
-#define USB_PD_MUX_USB_ENABLED (1 << 0)
-#define USB_PD_MUX_DP_ENABLED (1 << 1)
-#define USB_PD_MUX_POLARITY_INVERTED (1 << 2)
-#define USB_PD_MUX_HPD_IRQ (1 << 3)
+#define USB_PD_MUX_USB_ENABLED (1 << 0) /* USB connected */
+#define USB_PD_MUX_DP_ENABLED (1 << 1) /* DP connected */
+#define USB_PD_MUX_POLARITY_INVERTED (1 << 2) /* CC line Polarity inverted */
+#define USB_PD_MUX_HPD_IRQ (1 << 3) /* HPD IRQ is asserted */
+#define USB_PD_MUX_HPD_LVL (1 << 4) /* HPD level is asserted */

struct ec_response_usb_pd_mux_info {
uint8_t flags; /* USB_PD_MUX_*-encoded USB mux state */
-} __packed;
+} __ec_align1;
+
+#define EC_CMD_PD_CHIP_INFO 0x011B
+
+struct ec_params_pd_chip_info {
+ uint8_t port; /* USB-C port number */
+ uint8_t renew; /* Force renewal */
+} __ec_align1;
+
+struct ec_response_pd_chip_info {
+ uint16_t vendor_id;
+ uint16_t product_id;
+ uint16_t device_id;
+ union {
+ uint8_t fw_version_string[8];
+ uint64_t fw_version_number;
+ };
+} __ec_align2;
+
+struct ec_response_pd_chip_info_v1 {
+ uint16_t vendor_id;
+ uint16_t product_id;
+ uint16_t device_id;
+ union {
+ uint8_t fw_version_string[8];
+ uint64_t fw_version_number;
+ };
+ union {
+ uint8_t min_req_fw_version_string[8];
+ uint64_t min_req_fw_version_number;
+ };
+} __ec_align2;
+
+/* Run RW signature verification and get status */
+#define EC_CMD_RWSIG_CHECK_STATUS 0x011C
+
+struct ec_response_rwsig_check_status {
+ uint32_t status;
+} __ec_align4;
+
+/* For controlling RWSIG task */
+#define EC_CMD_RWSIG_ACTION 0x011D
+
+enum rwsig_action {
+ RWSIG_ACTION_ABORT = 0, /* Abort RWSIG and prevent jumping */
+ RWSIG_ACTION_CONTINUE = 1, /* Jump to RW immediately */
+};
+
+struct ec_params_rwsig_action {
+ uint32_t action;
+} __ec_align4;
+
+/* Run verification on a slot */
+#define EC_CMD_EFS_VERIFY 0x011E
+
+struct ec_params_efs_verify {
+ uint8_t region; /* enum ec_flash_region */
+} __ec_align1;
+
+/*
+ * Retrieve info from Cros Board Info store. Response is based on the data
+ * type. Integers return a uint32. Strings return a string, using the response
+ * size to determine how big it is.
+ */
+#define EC_CMD_GET_CROS_BOARD_INFO 0x011F
+/*
+ * Write info into Cros Board Info on EEPROM. Write fails if the board has
+ * hardware write-protect enabled.
+ */
+#define EC_CMD_SET_CROS_BOARD_INFO 0x0120
+
+enum cbi_data_tag {
+ CBI_TAG_BOARD_VERSION = 0, /* uint32_t or smaller */
+ CBI_TAG_OEM_ID = 1, /* uint32_t or smaller */
+ CBI_TAG_SKU_ID = 2, /* uint32_t or smaller */
+ CBI_TAG_DRAM_PART_NUM = 3, /* variable length ascii, nul terminated. */
+ CBI_TAG_OEM_NAME = 4, /* variable length ascii, nul terminated. */
+ CBI_TAG_MODEL_ID = 5, /* uint32_t or smaller */
+ CBI_TAG_COUNT,
+};
+
+/*
+ * Flags to control read operation
+ *
+ * RELOAD: Invalidate cache and read data from EEPROM. Useful to verify
+ * write was successful without reboot.
+ */
+#define CBI_GET_RELOAD (1 << 0)
+
+struct ec_params_get_cbi {
+ uint32_t tag; /* enum cbi_data_tag */
+ uint32_t flag; /* CBI_GET_* */
+} __ec_align4;
+
+/*
+ * Flags to control write behavior.
+ *
+ * NO_SYNC: Makes EC update data in RAM but skip writing to EEPROM. It's
+ * useful when writing multiple fields in a row.
+ * INIT: Need to be set when creating a new CBI from scratch. All fields
+ * will be initialized to zero first.
+ */
+#define CBI_SET_NO_SYNC (1 << 0)
+#define CBI_SET_INIT (1 << 1)
+
+struct ec_params_set_cbi {
+ uint32_t tag; /* enum cbi_data_tag */
+ uint32_t flag; /* CBI_SET_* */
+ uint32_t size; /* Data size */
+ uint8_t data[]; /* For string and raw data */
+} __ec_align1;
+
+/*
+ * Information about resets of the AP by the EC and the EC's own uptime.
+ */
+#define EC_CMD_GET_UPTIME_INFO 0x0121
+
+struct ec_response_uptime_info {
+ /*
+ * Number of milliseconds since the last EC boot. Sysjump resets
+ * typically do not restart the EC's time_since_boot epoch.
+ *
+ * WARNING: The EC's sense of time is much less accurate than the AP's
+ * sense of time, in both phase and frequency. This timebase is similar
+ * to CLOCK_MONOTONIC_RAW, but with 1% or more frequency error.
+ */
+ uint32_t time_since_ec_boot_ms;
+
+ /*
+ * Number of times the AP was reset by the EC since the last EC boot.
+ * Note that the AP may be held in reset by the EC during the initial
+ * boot sequence, such that the very first AP boot may count as more
+ * than one here.
+ */
+ uint32_t ap_resets_since_ec_boot;
+
+ /*
+ * The set of flags which describe the EC's most recent reset. See
+ * include/system.h RESET_FLAG_* for details.
+ */
+ uint32_t ec_reset_flags;
+
+ /* Empty log entries have both the cause and timestamp set to zero. */
+ struct ap_reset_log_entry {
+ /*
+ * See include/chipset.h: enum chipset_{reset,shutdown}_reason
+ * for details.
+ */
+ uint16_t reset_cause;
+
+ /* Reserved for protocol growth. */
+ uint16_t reserved;
+
+ /*
+ * The time of the reset's assertion, in milliseconds since the
+ * last EC boot, in the same epoch as time_since_ec_boot_ms.
+ * Set to zero if the log entry is empty.
+ */
+ uint32_t reset_time_ms;
+ } recent_ap_reset[4];
+} __ec_align4;
+
+/*
+ * Add entropy to the device secret (stored in the rollback region).
+ *
+ * Depending on the chip, the operation may take a long time (e.g. to erase
+ * flash), so the commands are asynchronous.
+ */
+#define EC_CMD_ADD_ENTROPY 0x0122
+
+enum add_entropy_action {
+ /* Add entropy to the current secret. */
+ ADD_ENTROPY_ASYNC = 0,
+ /*
+ * Add entropy, and also make sure that the previous secret is erased.
+ * (this can be implemented by adding entropy multiple times until
+ * all rolback blocks have been overwritten).
+ */
+ ADD_ENTROPY_RESET_ASYNC = 1,
+ /* Read back result from the previous operation. */
+ ADD_ENTROPY_GET_RESULT = 2,
+};
+
+struct ec_params_rollback_add_entropy {
+ uint8_t action;
+} __ec_align1;
+
+/*
+ * Perform a single read of a given ADC channel.
+ */
+#define EC_CMD_ADC_READ 0x0123
+
+struct ec_params_adc_read {
+ uint8_t adc_channel;
+} __ec_align1;
+
+struct ec_response_adc_read {
+ int32_t adc_value;
+} __ec_align4;
+
+/*
+ * Read back rollback info
+ */
+#define EC_CMD_ROLLBACK_INFO 0x0124
+
+struct ec_response_rollback_info {
+ int32_t id; /* Incrementing number to indicate which region to use. */
+ int32_t rollback_min_version;
+ int32_t rw_rollback_version;
+} __ec_align4;
+
+
+/* Issue AP reset */
+#define EC_CMD_AP_RESET 0x0125
+
+/*****************************************************************************/
+/* The command range 0x200-0x2FF is reserved for Rotor. */
+
+/*****************************************************************************/
+/*
+ * Reserve a range of host commands for the CR51 firmware.
+ */
+#define EC_CMD_CR51_BASE 0x0300
+#define EC_CMD_CR51_LAST 0x03FF
+
+/*****************************************************************************/
+/* Fingerprint MCU commands: range 0x0400-0x040x */
+
+/* Fingerprint SPI sensor passthru command: prototyping ONLY */
+#define EC_CMD_FP_PASSTHRU 0x0400
+
+#define EC_FP_FLAG_NOT_COMPLETE 0x1
+
+struct ec_params_fp_passthru {
+ uint16_t len; /* Number of bytes to write then read */
+ uint16_t flags; /* EC_FP_FLAG_xxx */
+ uint8_t data[]; /* Data to send */
+} __ec_align2;
+
+/* Configure the Fingerprint MCU behavior */
+#define EC_CMD_FP_MODE 0x0402
+
+/* Put the sensor in its lowest power mode */
+#define FP_MODE_DEEPSLEEP (1<<0)
+/* Wait to see a finger on the sensor */
+#define FP_MODE_FINGER_DOWN (1<<1)
+/* Poll until the finger has left the sensor */
+#define FP_MODE_FINGER_UP (1<<2)
+/* Capture the current finger image */
+#define FP_MODE_CAPTURE (1<<3)
+/* Finger enrollment session on-going */
+#define FP_MODE_ENROLL_SESSION (1<<4)
+/* Enroll the current finger image */
+#define FP_MODE_ENROLL_IMAGE (1<<5)
+/* Try to match the current finger image */
+#define FP_MODE_MATCH (1<<6)
+/* Reset and re-initialize the sensor. */
+#define FP_MODE_RESET_SENSOR (1<<7)
+/* special value: don't change anything just read back current mode */
+#define FP_MODE_DONT_CHANGE (1<<31)
+
+#define FP_VALID_MODES (FP_MODE_DEEPSLEEP | \
+ FP_MODE_FINGER_DOWN | \
+ FP_MODE_FINGER_UP | \
+ FP_MODE_CAPTURE | \
+ FP_MODE_ENROLL_SESSION | \
+ FP_MODE_ENROLL_IMAGE | \
+ FP_MODE_MATCH | \
+ FP_MODE_RESET_SENSOR | \
+ FP_MODE_DONT_CHANGE)
+
+/* Capture types defined in bits [30..28] */
+#define FP_MODE_CAPTURE_TYPE_SHIFT 28
+#define FP_MODE_CAPTURE_TYPE_MASK (0x7 << FP_MODE_CAPTURE_TYPE_SHIFT)
+/*
+ * This enum must remain ordered, if you add new values you must ensure that
+ * FP_CAPTURE_TYPE_MAX is still the last one.
+ */
+enum fp_capture_type {
+ /* Full blown vendor-defined capture (produces 'frame_size' bytes) */
+ FP_CAPTURE_VENDOR_FORMAT = 0,
+ /* Simple raw image capture (produces width x height x bpp bits) */
+ FP_CAPTURE_SIMPLE_IMAGE = 1,
+ /* Self test pattern (e.g. checkerboard) */
+ FP_CAPTURE_PATTERN0 = 2,
+ /* Self test pattern (e.g. inverted checkerboard) */
+ FP_CAPTURE_PATTERN1 = 3,
+ /* Capture for Quality test with fixed contrast */
+ FP_CAPTURE_QUALITY_TEST = 4,
+ /* Capture for pixel reset value test */
+ FP_CAPTURE_RESET_TEST = 5,
+ FP_CAPTURE_TYPE_MAX,
+};
+/* Extracts the capture type from the sensor 'mode' word */
+#define FP_CAPTURE_TYPE(mode) (((mode) & FP_MODE_CAPTURE_TYPE_MASK) \
+ >> FP_MODE_CAPTURE_TYPE_SHIFT)
+
+struct ec_params_fp_mode {
+ uint32_t mode; /* as defined by FP_MODE_ constants */
+} __ec_align4;
+
+struct ec_response_fp_mode {
+ uint32_t mode; /* as defined by FP_MODE_ constants */
+} __ec_align4;
+
+/* Retrieve Fingerprint sensor information */
+#define EC_CMD_FP_INFO 0x0403
+
+/* Number of dead pixels detected on the last maintenance */
+#define FP_ERROR_DEAD_PIXELS(errors) ((errors) & 0x3FF)
+/* Unknown number of dead pixels detected on the last maintenance */
+#define FP_ERROR_DEAD_PIXELS_UNKNOWN (0x3FF)
+/* No interrupt from the sensor */
+#define FP_ERROR_NO_IRQ (1 << 12)
+/* SPI communication error */
+#define FP_ERROR_SPI_COMM (1 << 13)
+/* Invalid sensor Hardware ID */
+#define FP_ERROR_BAD_HWID (1 << 14)
+/* Sensor initialization failed */
+#define FP_ERROR_INIT_FAIL (1 << 15)
+
+struct ec_response_fp_info_v0 {
+ /* Sensor identification */
+ uint32_t vendor_id;
+ uint32_t product_id;
+ uint32_t model_id;
+ uint32_t version;
+ /* Image frame characteristics */
+ uint32_t frame_size;
+ uint32_t pixel_format; /* using V4L2_PIX_FMT_ */
+ uint16_t width;
+ uint16_t height;
+ uint16_t bpp;
+ uint16_t errors; /* see FP_ERROR_ flags above */
+} __ec_align4;
+
+struct ec_response_fp_info {
+ /* Sensor identification */
+ uint32_t vendor_id;
+ uint32_t product_id;
+ uint32_t model_id;
+ uint32_t version;
+ /* Image frame characteristics */
+ uint32_t frame_size;
+ uint32_t pixel_format; /* using V4L2_PIX_FMT_ */
+ uint16_t width;
+ uint16_t height;
+ uint16_t bpp;
+ uint16_t errors; /* see FP_ERROR_ flags above */
+ /* Template/finger current information */
+ uint32_t template_size; /* max template size in bytes */
+ uint16_t template_max; /* maximum number of fingers/templates */
+ uint16_t template_valid; /* number of valid fingers/templates */
+ uint32_t template_dirty; /* bitmap of templates with MCU side changes */
+ uint32_t template_version; /* version of the template format */
+} __ec_align4;
+
+/* Get the last captured finger frame or a template content */
+#define EC_CMD_FP_FRAME 0x0404
+
+/* constants defining the 'offset' field which also contains the frame index */
+#define FP_FRAME_INDEX_SHIFT 28
+/* Frame buffer where the captured image is stored */
+#define FP_FRAME_INDEX_RAW_IMAGE 0
+/* First frame buffer holding a template */
+#define FP_FRAME_INDEX_TEMPLATE 1
+#define FP_FRAME_GET_BUFFER_INDEX(offset) ((offset) >> FP_FRAME_INDEX_SHIFT)
+#define FP_FRAME_OFFSET_MASK 0x0FFFFFFF
+
+/* Version of the format of the encrypted templates. */
+#define FP_TEMPLATE_FORMAT_VERSION 3
+
+/* Constants for encryption parameters */
+#define FP_CONTEXT_NONCE_BYTES 12
+#define FP_CONTEXT_USERID_WORDS (32 / sizeof(uint32_t))
+#define FP_CONTEXT_TAG_BYTES 16
+#define FP_CONTEXT_SALT_BYTES 16
+#define FP_CONTEXT_TPM_BYTES 32
+
+struct ec_fp_template_encryption_metadata {
+ /*
+ * Version of the structure format (N=3).
+ */
+ uint16_t struct_version;
+ /* Reserved bytes, set to 0. */
+ uint16_t reserved;
+ /*
+ * The salt is *only* ever used for key derivation. The nonce is unique,
+ * a different one is used for every message.
+ */
+ uint8_t nonce[FP_CONTEXT_NONCE_BYTES];
+ uint8_t salt[FP_CONTEXT_SALT_BYTES];
+ uint8_t tag[FP_CONTEXT_TAG_BYTES];
+};
+
+struct ec_params_fp_frame {
+ /*
+ * The offset contains the template index or FP_FRAME_INDEX_RAW_IMAGE
+ * in the high nibble, and the real offset within the frame in
+ * FP_FRAME_OFFSET_MASK.
+ */
+ uint32_t offset;
+ uint32_t size;
+} __ec_align4;
+
+/* Load a template into the MCU */
+#define EC_CMD_FP_TEMPLATE 0x0405
+
+/* Flag in the 'size' field indicating that the full template has been sent */
+#define FP_TEMPLATE_COMMIT 0x80000000
+
+struct ec_params_fp_template {
+ uint32_t offset;
+ uint32_t size;
+ uint8_t data[];
+} __ec_align4;
+
+/* Clear the current fingerprint user context and set a new one */
+#define EC_CMD_FP_CONTEXT 0x0406
+
+struct ec_params_fp_context {
+ uint32_t userid[FP_CONTEXT_USERID_WORDS];
+} __ec_align4;
+
+#define EC_CMD_FP_STATS 0x0407
+
+#define FPSTATS_CAPTURE_INV (1 << 0)
+#define FPSTATS_MATCHING_INV (1 << 1)
+
+struct ec_response_fp_stats {
+ uint32_t capture_time_us;
+ uint32_t matching_time_us;
+ uint32_t overall_time_us;
+ struct {
+ uint32_t lo;
+ uint32_t hi;
+ } overall_t0;
+ uint8_t timestamps_invalid;
+ int8_t template_matched;
+} __ec_align2;
+
+#define EC_CMD_FP_SEED 0x0408
+struct ec_params_fp_seed {
+ /*
+ * Version of the structure format (N=3).
+ */
+ uint16_t struct_version;
+ /* Reserved bytes, set to 0. */
+ uint16_t reserved;
+ /* Seed from the TPM. */
+ uint8_t seed[FP_CONTEXT_TPM_BYTES];
+} __ec_align4;
+
+/*****************************************************************************/
+/* Touchpad MCU commands: range 0x0500-0x05FF */
+
+/* Perform touchpad self test */
+#define EC_CMD_TP_SELF_TEST 0x0500
+
+/* Get number of frame types, and the size of each type */
+#define EC_CMD_TP_FRAME_INFO 0x0501
+
+struct ec_response_tp_frame_info {
+ uint32_t n_frames;
+ uint32_t frame_sizes[0];
+} __ec_align4;
+
+/* Create a snapshot of current frame readings */
+#define EC_CMD_TP_FRAME_SNAPSHOT 0x0502
+
+/* Read the frame */
+#define EC_CMD_TP_FRAME_GET 0x0503
+
+struct ec_params_tp_frame_get {
+ uint32_t frame_index;
+ uint32_t offset;
+ uint32_t size;
+} __ec_align4;
+
+/*****************************************************************************/
+/* EC-EC communication commands: range 0x0600-0x06FF */
+
+#define EC_COMM_TEXT_MAX 8
+
+/*
+ * Get battery static information, i.e. information that never changes, or
+ * very infrequently.
+ */
+#define EC_CMD_BATTERY_GET_STATIC 0x0600
+
+/**
+ * struct ec_params_battery_static_info - Battery static info parameters
+ * @index: Battery index.
+ */
+struct ec_params_battery_static_info {
+ uint8_t index;
+} __ec_align_size1;
+
+/**
+ * struct ec_response_battery_static_info - Battery static info response
+ * @design_capacity: Battery Design Capacity (mAh)
+ * @design_voltage: Battery Design Voltage (mV)
+ * @manufacturer: Battery Manufacturer String
+ * @model: Battery Model Number String
+ * @serial: Battery Serial Number String
+ * @type: Battery Type String
+ * @cycle_count: Battery Cycle Count
+ */
+struct ec_response_battery_static_info {
+ uint16_t design_capacity;
+ uint16_t design_voltage;
+ char manufacturer[EC_COMM_TEXT_MAX];
+ char model[EC_COMM_TEXT_MAX];
+ char serial[EC_COMM_TEXT_MAX];
+ char type[EC_COMM_TEXT_MAX];
+ /* TODO(crbug.com/795991): Consider moving to dynamic structure. */
+ uint32_t cycle_count;
+} __ec_align4;
+
+/*
+ * Get battery dynamic information, i.e. information that is likely to change
+ * every time it is read.
+ */
+#define EC_CMD_BATTERY_GET_DYNAMIC 0x0601
+
+/**
+ * struct ec_params_battery_dynamic_info - Battery dynamic info parameters
+ * @index: Battery index.
+ */
+struct ec_params_battery_dynamic_info {
+ uint8_t index;
+} __ec_align_size1;
+
+/**
+ * struct ec_response_battery_dynamic_info - Battery dynamic info response
+ * @actual_voltage: Battery voltage (mV)
+ * @actual_current: Battery current (mA); negative=discharging
+ * @remaining_capacity: Remaining capacity (mAh)
+ * @full_capacity: Capacity (mAh, might change occasionally)
+ * @flags: Flags, see EC_BATT_FLAG_*
+ * @desired_voltage: Charging voltage desired by battery (mV)
+ * @desired_current: Charging current desired by battery (mA)
+ */
+struct ec_response_battery_dynamic_info {
+ int16_t actual_voltage;
+ int16_t actual_current;
+ int16_t remaining_capacity;
+ int16_t full_capacity;
+ int16_t flags;
+ int16_t desired_voltage;
+ int16_t desired_current;
+} __ec_align2;
+
+/*
+ * Control charger chip. Used to control charger chip on the slave.
+ */
+#define EC_CMD_CHARGER_CONTROL 0x0602
+
+/**
+ * struct ec_params_charger_control - Charger control parameters
+ * @max_current: Charger current (mA). Positive to allow base to draw up to
+ * max_current and (possibly) charge battery, negative to request current
+ * from base (OTG).
+ * @otg_voltage: Voltage (mV) to use in OTG mode, ignored if max_current is
+ * >= 0.
+ * @allow_charging: Allow base battery charging (only makes sense if
+ * max_current > 0).
+ */
+struct ec_params_charger_control {
+ int16_t max_current;
+ uint16_t otg_voltage;
+ uint8_t allow_charging;
+} __ec_align_size1;
+
+/*****************************************************************************/
+/*
+ * Reserve a range of host commands for board-specific, experimental, or
+ * special purpose features. These can be (re)used without updating this file.
+ *
+ * CAUTION: Don't go nuts with this. Shipping products should document ALL
+ * their EC commands for easier development, testing, debugging, and support.
+ *
+ * All commands MUST be #defined to be 4-digit UPPER CASE hex values
+ * (e.g., 0x00AB, not 0xab) for CONFIG_HOSTCMD_SECTION_SORTED to work.
+ *
+ * In your experimental code, you may want to do something like this:
+ *
+ * #define EC_CMD_MAGIC_FOO 0x0000
+ * #define EC_CMD_MAGIC_BAR 0x0001
+ * #define EC_CMD_MAGIC_HEY 0x0002
+ *
+ * DECLARE_PRIVATE_HOST_COMMAND(EC_CMD_MAGIC_FOO, magic_foo_handler,
+ * EC_VER_MASK(0);
+ *
+ * DECLARE_PRIVATE_HOST_COMMAND(EC_CMD_MAGIC_BAR, magic_bar_handler,
+ * EC_VER_MASK(0);
+ *
+ * DECLARE_PRIVATE_HOST_COMMAND(EC_CMD_MAGIC_HEY, magic_hey_handler,
+ * EC_VER_MASK(0);
+ */
+#define EC_CMD_BOARD_SPECIFIC_BASE 0x3E00
+#define EC_CMD_BOARD_SPECIFIC_LAST 0x3FFF
+
+/*
+ * Given the private host command offset, calculate the true private host
+ * command value.
+ */
+#define EC_PRIVATE_HOST_COMMAND_VALUE(command) \
+ (EC_CMD_BOARD_SPECIFIC_BASE + (command))

/*****************************************************************************/
/*
@@ -3457,4 +5694,10 @@ struct ec_response_usb_pd_mux_info {
#define EC_LPC_ADDR_OLD_PARAM EC_HOST_CMD_REGION1
#define EC_OLD_PARAM_SIZE EC_HOST_CMD_REGION_SIZE

+#endif /* !__ACPI__ */
+
+#ifdef __cplusplus
+}
+#endif
+
#endif /* __CROS_EC_COMMANDS_H */
--
2.21.0.rc2.261.ga7da99ff1b-goog
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