37 lines
1.3 KiB
C
37 lines
1.3 KiB
C
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/*
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* This file is part of the coreboot project.
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* Mailbox EC communication interface for SMSC MEC1308 Embedded Controller.
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*/
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#ifndef _EC_SMSC_MEC1308_EC_H
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#define _EC_SMSC_MEC1308_EC_H
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#define EC_TIMEOUT 0xfff
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#define EC_MAILBOX_COMMAND 0x82 // Send a command
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#define EC_MAILBOX_DATA 0x84 // Send data with a command
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#define EC_MAILBOX_DATA_H 0x85 // Send data with a command
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#define EC_RAM_READ 0x88 // Read from RAM
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#define EC_RAM_WRITE 0x89 // Write to RAM
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int send_ec_command(u8 command);
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int send_ec_command_data(u8 command, u8 data);
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u8 read_ec_command_byte(u8 command);
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u8 ec_read(u8 addr);
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int ec_write(u8 addr, u8 data);
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void ec_set_bit(u8 addr, u8 bit);
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void ec_clr_bit(u8 addr, u8 bit);
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void ec_set_ports(u16 cmd_reg, u16 data_reg);
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#endif /* _EC_SMSC_MEC1308_EC_H */
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