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24#ifndef __VIA_AUX_H__
25#define __VIA_AUX_H__
26
27
28#include <linux/list.h>
29#include <linux/i2c.h>
30#include <linux/fb.h>
31
32
33struct via_aux_bus {
34 struct i2c_adapter *adap;
35 struct list_head drivers;
36};
37
38struct via_aux_drv {
39 struct list_head chain;
40
41 struct via_aux_bus *bus;
42 u8 addr;
43
44 const char *name;
45 void *data;
46
47 void (*cleanup)(struct via_aux_drv *drv);
48 const struct fb_videomode* (*get_preferred_mode)
49 (struct via_aux_drv *drv);
50};
51
52
53struct via_aux_bus *via_aux_probe(struct i2c_adapter *adap);
54void via_aux_free(struct via_aux_bus *bus);
55const struct fb_videomode *via_aux_get_preferred_mode(struct via_aux_bus *bus);
56
57
58static inline bool via_aux_add(struct via_aux_drv *drv)
59{
60 struct via_aux_drv *data = kmalloc(sizeof(*data), GFP_KERNEL);
61
62 if (!data)
63 return false;
64
65 *data = *drv;
66 list_add_tail(&data->chain, &data->bus->drivers);
67 return true;
68}
69
70static inline bool via_aux_read(struct via_aux_drv *drv, u8 start, u8 *buf,
71 u8 len)
72{
73 struct i2c_msg msg[2] = {
74 {.addr = drv->addr, .flags = 0, .len = 1, .buf = &start},
75 {.addr = drv->addr, .flags = I2C_M_RD, .len = len, .buf = buf} };
76
77 return i2c_transfer(drv->bus->adap, msg, 2) == 2;
78}
79
80
81
82void via_aux_ch7301_probe(struct via_aux_bus *bus);
83void via_aux_edid_probe(struct via_aux_bus *bus);
84void via_aux_sii164_probe(struct via_aux_bus *bus);
85void via_aux_vt1636_probe(struct via_aux_bus *bus);
86void via_aux_vt1632_probe(struct via_aux_bus *bus);
87void via_aux_vt1631_probe(struct via_aux_bus *bus);
88void via_aux_vt1625_probe(struct via_aux_bus *bus);
89void via_aux_vt1622_probe(struct via_aux_bus *bus);
90void via_aux_vt1621_probe(struct via_aux_bus *bus);
91
92
93#endif
94