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
56
57
58
59
60
|
#ifndef __NOUVEAU_I2C_H__
#define __NOUVEAU_I2C_H__
#include <core/subdev.h>
#include <core/device.h>
#include <subdev/bios.h>
#include <subdev/bios/i2c.h>
#define NV_I2C_PORT(n) (0x00 + (n))
#define NV_I2C_DEFAULT(n) (0x80 + (n))
struct nouveau_i2c_port {
struct i2c_adapter adapter;
struct nouveau_i2c *i2c;
struct i2c_algo_bit_data bit;
struct list_head head;
u8 index;
u8 type;
u32 dcb;
u32 drive;
u32 sense;
u32 state;
};
struct nouveau_i2c {
struct nouveau_subdev base;
struct nouveau_i2c_port *(*find)(struct nouveau_i2c *, u8 index);
int (*identify)(struct nouveau_i2c *, int index,
const char *what, struct i2c_board_info *,
bool (*match)(struct nouveau_i2c_port *,
struct i2c_board_info *));
struct list_head ports;
};
static inline struct nouveau_i2c *
nouveau_i2c(void *obj)
{
return (void *)nv_device(obj)->subdev[NVDEV_SUBDEV_I2C];
}
extern struct nouveau_oclass nouveau_i2c_oclass;
void nouveau_i2c_drive_scl(void *, int);
void nouveau_i2c_drive_sda(void *, int);
int nouveau_i2c_sense_scl(void *);
int nouveau_i2c_sense_sda(void *);
int nv_rdi2cr(struct nouveau_i2c_port *, u8 addr, u8 reg);
int nv_wri2cr(struct nouveau_i2c_port *, u8 addr, u8 reg, u8 val);
bool nv_probe_i2c(struct nouveau_i2c_port *, u8 addr);
int nv_rdaux(struct nouveau_i2c_port *, u32 addr, u8 *data, u8 size);
int nv_wraux(struct nouveau_i2c_port *, u32 addr, u8 *data, u8 size);
extern const struct i2c_algorithm nouveau_i2c_bit_algo;
extern const struct i2c_algorithm nouveau_i2c_aux_algo;
#endif
|
