blob: 60a72723438f2dc167f0fff309de97d9d7fa6909 [file] [log] [blame]
* This file is part of the coreboot project.
* Copyright (C) 2012 The Chromium OS Authors. All rights reserved.
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
* Mailbox EC communication interface for Google Chrome Embedded Controller.
#include <stddef.h>
#include <stdint.h>
#ifndef __PRE_RAM__
int google_chromeec_i2c_xfer(uint8_t chip, uint8_t addr, int alen,
uint8_t *buffer, int len, int is_read);
u32 google_chromeec_get_wake_mask(void);
int google_chromeec_set_sci_mask(u32 mask);
int google_chromeec_set_smi_mask(u32 mask);
int google_chromeec_set_wake_mask(u32 mask);
u8 google_chromeec_get_event(void);
int google_ec_running_ro(void);
void google_chromeec_init(void);
void google_chromeec_early_init(void);
uint8_t google_chromeec_calc_checksum(const uint8_t *data, int size);
u16 google_chromeec_get_board_version(void);
u32 google_chromeec_get_events_b(void);
int google_chromeec_kbbacklight(int percent);
void google_chromeec_post(u8 postcode);
void google_chromeec_log_events(u32 mask);
int google_chromeec_vbnv_context(int is_read, uint8_t *data, int len);
enum usb_charge_mode {
int google_chromeec_set_usb_charge_mode(u8 port_id, enum usb_charge_mode mode);
/* internal structure to send a command to the EC and wait for response. */
struct chromeec_command {
uint16_t cmd_code; /* command code in, status out */
uint8_t cmd_version; /* command version */
const void* cmd_data_in; /* command data, if any */
void* cmd_data_out; /* command response, if any */
uint16_t cmd_size_in; /* size of command data */
uint16_t cmd_size_out; /* expected size of command response in,
* actual received size out */
/* internal standard implementation for EC command protocols. */
typedef int (*crosec_io_t)(uint8_t *write_bytes, size_t write_size,
uint8_t *read_bytes, size_t read_size,
void *context);
int crosec_command_proto(struct chromeec_command *cec_command,
crosec_io_t crosec_io, void *context);
int google_chromeec_command(struct chromeec_command *cec_command);