blob: 51d4f3d4116dda55e130360b89cc02e06cdfa984 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*-*- 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
Linus Torvalds1da177e2005-04-16 15:20:36 -070017/* Video Timings */
18extern void round_off_xres (u32 *xres);
19extern void round_off_yres (u32 *xres, u32 *yres);
20extern u32 i810_get_watermark (const struct fb_var_screeninfo *var,
21 struct i810fb_par *par);
22extern void i810fb_encode_registers(const struct fb_var_screeninfo *var,
23 struct i810fb_par *par, u32 xres, u32 yres);
24extern void i810fb_fill_var_timings(struct fb_var_screeninfo *var);
25
26/* Accelerated Functions */
27extern void i810fb_fillrect (struct fb_info *p,
28 const struct fb_fillrect *rect);
29extern void i810fb_copyarea (struct fb_info *p,
30 const struct fb_copyarea *region);
31extern void i810fb_imageblit(struct fb_info *p, const struct fb_image *image);
32extern int i810fb_sync (struct fb_info *p);
33
34extern void i810fb_init_ringbuffer(struct fb_info *info);
35extern void i810fb_load_front (u32 offset, struct fb_info *info);
36
Antonino A. Daplas74f6ae82005-09-09 13:10:04 -070037#ifdef CONFIG_FB_I810_I2C
38/* I2C */
39extern int i810_probe_i2c_connector(struct fb_info *info, u8 **out_edid,
40 int conn);
41extern void i810_create_i2c_busses(struct i810fb_par *par);
42extern void i810_delete_i2c_busses(struct i810fb_par *par);
43#else
44static inline int i810_probe_i2c_connector(struct fb_info *info, u8 **out_edid,
45 int conn)
46{
47 return 1;
48}
49static inline void i810_create_i2c_busses(struct i810fb_par *par) { }
50static inline void i810_delete_i2c_busses(struct i810fb_par *par) { }
51#endif
52
Linus Torvalds1da177e2005-04-16 15:20:36 -070053/* Conditionals */
54#ifdef CONFIG_X86
Adrian Bunka0aa7d02006-01-09 20:54:04 -080055static inline void flush_cache(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -070056{
57 asm volatile ("wbinvd":::"memory");
58}
59#else
60#define flush_cache() do { } while(0)
61#endif
62
63#ifdef CONFIG_MTRR
Adrian Bunka0aa7d02006-01-09 20:54:04 -080064
65#include <asm/mtrr.h>
66
Linus Torvalds1da177e2005-04-16 15:20:36 -070067static inline void __devinit set_mtrr(struct i810fb_par *par)
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}
77static 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
Linus Torvalds1da177e2005-04-16 15:20:36 -070084#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__ */