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9#ifndef __VIA_AUX_H__
10#define __VIA_AUX_H__
11
12
13#include <linux/list.h>
14#include <linux/i2c.h>
15#include <linux/fb.h>
16
17
18struct via_aux_bus {
19 struct i2c_adapter *adap;
20 struct list_head drivers;
21};
22
23struct via_aux_drv {
24 struct list_head chain;
25
26 struct via_aux_bus *bus;
27 u8 addr;
28
29 const char *name;
30 void *data;
31
32 void (*cleanup)(struct via_aux_drv *drv);
33 const struct fb_videomode* (*get_preferred_mode)
34 (struct via_aux_drv *drv);
35};
36
37
38struct via_aux_bus *via_aux_probe(struct i2c_adapter *adap);
39void via_aux_free(struct via_aux_bus *bus);
40const struct fb_videomode *via_aux_get_preferred_mode(struct via_aux_bus *bus);
41
42
43static inline bool via_aux_add(struct via_aux_drv *drv)
44{
45 struct via_aux_drv *data = kmalloc(sizeof(*data), GFP_KERNEL);
46
47 if (!data)
48 return false;
49
50 *data = *drv;
51 list_add_tail(&data->chain, &data->bus->drivers);
52 return true;
53}
54
55static inline bool via_aux_read(struct via_aux_drv *drv, u8 start, u8 *buf,
56 u8 len)
57{
58 struct i2c_msg msg[2] = {
59 {.addr = drv->addr, .flags = 0, .len = 1, .buf = &start},
60 {.addr = drv->addr, .flags = I2C_M_RD, .len = len, .buf = buf} };
61
62 return i2c_transfer(drv->bus->adap, msg, 2) == 2;
63}
64
65
66
67void via_aux_ch7301_probe(struct via_aux_bus *bus);
68void via_aux_edid_probe(struct via_aux_bus *bus);
69void via_aux_sii164_probe(struct via_aux_bus *bus);
70void via_aux_vt1636_probe(struct via_aux_bus *bus);
71void via_aux_vt1632_probe(struct via_aux_bus *bus);
72void via_aux_vt1631_probe(struct via_aux_bus *bus);
73void via_aux_vt1625_probe(struct via_aux_bus *bus);
74void via_aux_vt1622_probe(struct via_aux_bus *bus);
75void via_aux_vt1621_probe(struct via_aux_bus *bus);
76
77
78#endif
79