| /* |
| * 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 |
| */ |
| |
| /* |
| * EC communication interface for COMPAL ENE932 Embedded Controller. |
| */ |
| |
| #ifndef _EC_COMPAL_ENE932_EC_H |
| #define _EC_COMPAL_ENE932_EC_H |
| |
| #define EC_IO 0xfd60 /* Mainboard specific. Could be Kconfig option */ |
| #define EC_IO_HIGH EC_IO + 1 |
| #define EC_IO_LOW EC_IO + 2 |
| #define EC_IO_DATA EC_IO + 3 |
| |
| /* ENE EC internal address space */ |
| #define REG_SPI_DATA 0xfeab |
| #define REG_SPI_COMMAND 0xfeac |
| #define REG_SPI_CONFIG 0xfead |
| #define CFG_CSn_FORCE_LOW (1 << 4) |
| #define CFG_COMMAND_WRITE_ENABLE (1 << 3) |
| #define CFG_STATUS (1 << 1) |
| |
| |
| #define KBD_DATA 0x60 |
| #define KBD_COMMAND 0x64 |
| #define KBD_STATUS 0x64 |
| #define KBD_IBF (1 << 1) // 1: input buffer full (data ready for ec) |
| #define KBD_OBF (1 << 0) // 1: output buffer full (data ready for host) |
| |
| |
| /* Wait 400ms for keyboard controller answers */ |
| #define KBC_TIMEOUT_IN_MS 400 |
| |
| u8 ec_kbc_read_ob(void); |
| void ec_kbc_write_cmd(u8 cmd); |
| void ec_kbc_write_ib(u8 data); |
| int kbc_cleanup_buffers(void); |
| |
| #endif /* _EC_COMPAL_ENE932_EC_H */ |
