mirror of https://gitee.com/openkylin/linux.git
46 lines
1.0 KiB
C
46 lines
1.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* LPC interface for ChromeOS Embedded Controller
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*
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* Copyright (C) 2016 Google, Inc
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*/
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#ifndef __CROS_EC_LPC_REG_H
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#define __CROS_EC_LPC_REG_H
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/**
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* cros_ec_lpc_read_bytes - Read bytes from a given LPC-mapped address.
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* Returns 8-bit checksum of all bytes read.
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*
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* @offset: Base read address
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* @length: Number of bytes to read
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* @dest: Destination buffer
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*/
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u8 cros_ec_lpc_read_bytes(unsigned int offset, unsigned int length, u8 *dest);
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/**
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* cros_ec_lpc_write_bytes - Write bytes to a given LPC-mapped address.
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* Returns 8-bit checksum of all bytes written.
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*
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* @offset: Base write address
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* @length: Number of bytes to write
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* @msg: Write data buffer
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*/
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u8 cros_ec_lpc_write_bytes(unsigned int offset, unsigned int length, u8 *msg);
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/**
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* cros_ec_lpc_reg_init
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*
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* Initialize register I/O.
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*/
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void cros_ec_lpc_reg_init(void);
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/**
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* cros_ec_lpc_reg_destroy
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*
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* Cleanup reg I/O.
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*/
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void cros_ec_lpc_reg_destroy(void);
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#endif /* __CROS_EC_LPC_REG_H */
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