diff options
Diffstat (limited to 'src/ec/smsc/mec1308/ec.h')
| -rw-r--r-- | src/ec/smsc/mec1308/ec.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/src/ec/smsc/mec1308/ec.h b/src/ec/smsc/mec1308/ec.h new file mode 100644 index 0000000000..07bfc4f786 --- /dev/null +++ b/src/ec/smsc/mec1308/ec.h @@ -0,0 +1,41 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2011 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 SMSC MEC1308 Embedded Controller. + */ + +#ifndef _EC_SMSC_MEC1308_EC_H +#define _EC_SMSC_MEC1308_EC_H + +#define EC_TIMEOUT 0xfff +#define EC_MAILBOX_COMMAND 0x82 // Send a command +#define EC_MAILBOX_DATA 0x84 // Send data with a command +#define EC_MAILBOX_DATA_H 0x85 // Send data with a command +#define EC_RAM_READ 0x88 // Read from RAM +#define EC_RAM_WRITE 0x89 // Write to RAM + +int send_ec_command(u8 command); +int send_ec_command_data(u8 command, u8 data); +u8 read_ec_command_byte(u8 command); +u8 ec_read(u8 addr); +int ec_write(u8 addr, u8 data); +void ec_set_bit(u8 addr, u8 bit); +void ec_clr_bit(u8 addr, u8 bit); +void ec_set_ports(u16 cmd_reg, u16 data_reg); + +#endif /* _EC_SMSC_MEC1308_EC_H */ |