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1da177e4 LT |
1 | /*-*- linux-c -*- |
2 | * linux/drivers/video/i810fb_main.h -- Intel 810 frame buffer device | |
3 | * main header file | |
4 | * | |
5 | * Copyright (C) 2001 Antonino Daplas<adaplas@pol.net> | |
6 | * All Rights Reserved | |
7 | * | |
8 | * | |
9 | * This file is subject to the terms and conditions of the GNU General Public | |
10 | * License. See the file COPYING in the main directory of this archive for | |
11 | * more details. | |
12 | */ | |
13 | ||
14 | #ifndef __I810_MAIN_H__ | |
15 | #define __I810_MAIN_H__ | |
16 | ||
1da177e4 LT |
17 | /* Video Timings */ |
18 | extern void round_off_xres (u32 *xres); | |
19 | extern void round_off_yres (u32 *xres, u32 *yres); | |
20 | extern u32 i810_get_watermark (const struct fb_var_screeninfo *var, | |
21 | struct i810fb_par *par); | |
22 | extern void i810fb_encode_registers(const struct fb_var_screeninfo *var, | |
23 | struct i810fb_par *par, u32 xres, u32 yres); | |
24 | extern void i810fb_fill_var_timings(struct fb_var_screeninfo *var); | |
25 | ||
26 | /* Accelerated Functions */ | |
27 | extern void i810fb_fillrect (struct fb_info *p, | |
28 | const struct fb_fillrect *rect); | |
29 | extern void i810fb_copyarea (struct fb_info *p, | |
30 | const struct fb_copyarea *region); | |
31 | extern void i810fb_imageblit(struct fb_info *p, const struct fb_image *image); | |
32 | extern int i810fb_sync (struct fb_info *p); | |
33 | ||
34 | extern void i810fb_init_ringbuffer(struct fb_info *info); | |
35 | extern void i810fb_load_front (u32 offset, struct fb_info *info); | |
36 | ||
74f6ae84 AD |
37 | #ifdef CONFIG_FB_I810_I2C |
38 | /* I2C */ | |
39 | extern int i810_probe_i2c_connector(struct fb_info *info, u8 **out_edid, | |
40 | int conn); | |
41 | extern void i810_create_i2c_busses(struct i810fb_par *par); | |
42 | extern void i810_delete_i2c_busses(struct i810fb_par *par); | |
43 | #else | |
44 | static inline int i810_probe_i2c_connector(struct fb_info *info, u8 **out_edid, | |
45 | int conn) | |
46 | { | |
47 | return 1; | |
48 | } | |
49 | static inline void i810_create_i2c_busses(struct i810fb_par *par) { } | |
50 | static inline void i810_delete_i2c_busses(struct i810fb_par *par) { } | |
51 | #endif | |
52 | ||
1da177e4 LT |
53 | /* Conditionals */ |
54 | #ifdef CONFIG_X86 | |
a0aa7d06 | 55 | static inline void flush_cache(void) |
1da177e4 LT |
56 | { |
57 | asm volatile ("wbinvd":::"memory"); | |
58 | } | |
59 | #else | |
60 | #define flush_cache() do { } while(0) | |
61 | #endif | |
62 | ||
63 | #ifdef CONFIG_MTRR | |
a0aa7d06 AB |
64 | |
65 | #include <asm/mtrr.h> | |
66 | ||
48c68c4f | 67 | static inline void set_mtrr(struct i810fb_par *par) |
1da177e4 LT |
68 | { |
69 | par->mtrr_reg = mtrr_add((u32) par->aperture.physical, | |
70 | par->aperture.size, MTRR_TYPE_WRCOMB, 1); | |
71 | if (par->mtrr_reg < 0) { | |
72 | printk(KERN_ERR "set_mtrr: unable to set MTRR\n"); | |
73 | return; | |
74 | } | |
75 | par->dev_flags |= HAS_MTRR; | |
76 | } | |
77 | static inline void unset_mtrr(struct i810fb_par *par) | |
78 | { | |
79 | if (par->dev_flags & HAS_MTRR) | |
80 | mtrr_del(par->mtrr_reg, (u32) par->aperture.physical, | |
81 | par->aperture.size); | |
82 | } | |
83 | #else | |
1da177e4 LT |
84 | #define set_mtrr(x) printk("set_mtrr: MTRR is disabled in the kernel\n") |
85 | ||
86 | #define unset_mtrr(x) do { } while (0) | |
87 | #endif /* CONFIG_MTRR */ | |
88 | ||
89 | #ifdef CONFIG_FB_I810_GTF | |
90 | #define IS_DVT (0) | |
91 | #else | |
92 | #define IS_DVT (1) | |
93 | #endif | |
94 | ||
95 | #endif /* __I810_MAIN_H__ */ |