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/*
* QEMU SMBus host (master) API
*
* Copyright (c) 2007 Arastra, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef HW_SMBUS_MASTER_H
#define HW_SMBUS_MASTER_H
#include "hw/i2c/i2c.h"
/* Master device commands. */
int smbus_quick_command(I2CBus *bus, uint8_t addr, int read);
int smbus_receive_byte(I2CBus *bus, uint8_t addr);
int smbus_send_byte(I2CBus *bus, uint8_t addr, uint8_t data);
int smbus_read_byte(I2CBus *bus, uint8_t addr, uint8_t command);
int smbus_write_byte(I2CBus *bus, uint8_t addr, uint8_t command, uint8_t data);
int smbus_read_word(I2CBus *bus, uint8_t addr, uint8_t command);
int smbus_write_word(I2CBus *bus, uint8_t addr, uint8_t command, uint16_t data);
/*
* Do a block transfer from an I2C device. If recv_len is set, then the
* first received byte is a length field and is used to know how much data
* to receive. Otherwise receive "len" bytes. If send_cmd is set, send
* the command byte first before receiving the data.
*/
int smbus_read_block(I2CBus *bus, uint8_t addr, uint8_t command, uint8_t *data,
int len, bool recv_len, bool send_cmd);
/*
* Do a block transfer to an I2C device. If send_len is set, send the
* "len" value before the data.
*/
int smbus_write_block(I2CBus *bus, uint8_t addr, uint8_t command, uint8_t *data,
int len, bool send_len);
#endif
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