1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
#ifndef DEVICE_SMBUS_H
#define DEVICE_SMBUS_H
#include <stdint.h>
#include <device/device.h>
#include <device/path.h>
#include <device/smbus_def.h>
/* Common SMBus bus operations */
struct smbus_bus_operations {
int (*quick_read) (device_t dev);
int (*quick_write) (device_t dev);
int (*recv_byte) (device_t dev);
int (*send_byte) (device_t dev, u8 value);
int (*read_byte) (device_t dev, u8 addr);
int (*write_byte) (device_t dev, u8 addr, u8 value);
int (*read_word) (device_t dev, u8 addr);
int (*write_word) (device_t dev, u8 addr, u16 value);
int (*process_call)(device_t dev, u8 cmd, u16 data);
int (*block_read) (device_t dev, u8 cmd, u8 bytes, u8 *buffer);
int (*block_write) (device_t dev, u8 cmd, u8 bytes, const u8 *buffer);
};
static inline const struct smbus_bus_operations *ops_smbus_bus(struct bus *bus)
{
const struct smbus_bus_operations *bops;
bops = 0;
if (bus && bus->dev && bus->dev->ops)
bops = bus->dev->ops->ops_smbus_bus;
return bops;
}
struct bus *get_pbus_smbus(device_t dev);
int smbus_set_link(device_t dev);
int smbus_quick_read(device_t dev);
int smbus_quick_write(device_t dev);
int smbus_recv_byte(device_t dev);
int smbus_send_byte(device_t dev, u8 byte);
int smbus_read_byte(device_t dev, u8 addr);
int smbus_write_byte(device_t dev, u8 addr, u8 val);
int smbus_read_word(device_t dev, u8 addr);
int smbus_write_word(device_t dev, u8 addr, u16 val);
int smbus_process_call(device_t dev, u8 cmd, u16 data);
int smbus_block_read(device_t dev, u8 cmd, u8 bytes, u8 *buffer);
int smbus_block_write(device_t dev, u8 cmd, u8 bytes, const u8 *buffer);
#if IS_ENABLED(CONFIG_SMBUS_HAS_AUX_CHANNELS)
void smbus_switch_to_channel(uint8_t channel_number);
uint8_t smbus_get_current_channel(void);
#endif
#endif /* DEVICE_SMBUS_H */
|