ppc/pnv: Add a HIOMAP erase command
[qemu.git] / include / hw / i2c / smbus_master.h
1 /*
2 * QEMU SMBus host (master) API
3 *
4 * Copyright (c) 2007 Arastra, Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #ifndef HW_SMBUS_MASTER_H
26 #define HW_SMBUS_MASTER_H
27
28 #include "hw/i2c/i2c.h"
29
30 /* Master device commands. */
31 int smbus_quick_command(I2CBus *bus, uint8_t addr, int read);
32 int smbus_receive_byte(I2CBus *bus, uint8_t addr);
33 int smbus_send_byte(I2CBus *bus, uint8_t addr, uint8_t data);
34 int smbus_read_byte(I2CBus *bus, uint8_t addr, uint8_t command);
35 int smbus_write_byte(I2CBus *bus, uint8_t addr, uint8_t command, uint8_t data);
36 int smbus_read_word(I2CBus *bus, uint8_t addr, uint8_t command);
37 int smbus_write_word(I2CBus *bus, uint8_t addr, uint8_t command, uint16_t data);
38
39 /*
40 * Do a block transfer from an I2C device. If recv_len is set, then the
41 * first received byte is a length field and is used to know how much data
42 * to receive. Otherwise receive "len" bytes. If send_cmd is set, send
43 * the command byte first before receiving the data.
44 */
45 int smbus_read_block(I2CBus *bus, uint8_t addr, uint8_t command, uint8_t *data,
46 int len, bool recv_len, bool send_cmd);
47
48 /*
49 * Do a block transfer to an I2C device. If send_len is set, send the
50 * "len" value before the data.
51 */
52 int smbus_write_block(I2CBus *bus, uint8_t addr, uint8_t command, uint8_t *data,
53 int len, bool send_len);
54
55 #endif