610d46506e
Change-Id: Ib47cc1ee617aae74a8cfbcb25c1d0c083196f417 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/26662 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
53 lines
1.7 KiB
C
53 lines
1.7 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2008-2009 coresystems GmbH
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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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#ifndef _EC_ACPI_H
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#define _EC_ACPI_H
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#include <stdint.h>
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#define EC_DATA 0x62
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#define EC_SC 0x66
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/* EC_SC input */
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#define EC_SMI_EVT (1 << 6) // 1: SMI event pending
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#define EC_SCI_EVT (1 << 5) // 1: SCI event pending
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#define EC_BURST (1 << 4) // controller is in burst mode
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#define EC_CMD (1 << 3) // 1: byte in data register is command
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// 0: byte in data register is data
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#define EC_IBF (1 << 1) // 1: input buffer full (data ready for ec)
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#define EC_OBF (1 << 0) // 1: output buffer full (data ready for host)
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/* EC_SC output */
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#define RD_EC 0x80 // Read Embedded Controller
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#define WR_EC 0x81 // Write Embedded Controller
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#define BE_EC 0x82 // Burst Enable Embedded Controller
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#define BD_EC 0x83 // Burst Disable Embedded Controller
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#define QR_EC 0x84 // Query Embedded Controller
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int send_ec_command(u8 command);
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int send_ec_data(u8 data);
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int send_ec_data_nowait(u8 data);
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u8 recv_ec_data(void);
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void ec_clear_out_queue(void);
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u8 ec_status(void);
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u8 ec_query(void);
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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_ACPI_H */
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