| /* |
| * 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 |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * 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. |
| */ |
| |
| #ifndef _EC_GOOGLE_CHROMEEC_EC_H |
| #define _EC_GOOGLE_CHROMEEC_EC_H |
| #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); |
| #endif |
| |
| 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 { |
| USB_CHARGE_MODE_DISABLED, |
| USB_CHARGE_MODE_CHARGE_AUTO, |
| USB_CHARGE_MODE_CHARGE_BC12, |
| USB_CHARGE_MODE_DOWNSTREAM_500MA, |
| USB_CHARGE_MODE_DOWNSTREAM_1500MA, |
| }; |
| 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); |
| |
| #endif /* _EC_GOOGLE_CHROMEEC_EC_H */ |