mirror of https://gitee.com/openkylin/linux.git
96 lines
2.8 KiB
C
96 lines
2.8 KiB
C
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/*-*- linux-c -*-
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* linux/drivers/video/i810fb_main.h -- Intel 810 frame buffer device
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* main header file
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*
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* Copyright (C) 2001 Antonino Daplas<adaplas@pol.net>
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* All Rights Reserved
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*
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file COPYING in the main directory of this archive for
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* more details.
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*/
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#ifndef __I810_MAIN_H__
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#define __I810_MAIN_H__
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/* Video Timings */
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extern void round_off_xres (u32 *xres);
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extern void round_off_yres (u32 *xres, u32 *yres);
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extern u32 i810_get_watermark (const struct fb_var_screeninfo *var,
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struct i810fb_par *par);
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extern void i810fb_encode_registers(const struct fb_var_screeninfo *var,
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struct i810fb_par *par, u32 xres, u32 yres);
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extern void i810fb_fill_var_timings(struct fb_var_screeninfo *var);
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/* Accelerated Functions */
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extern void i810fb_fillrect (struct fb_info *p,
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const struct fb_fillrect *rect);
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extern void i810fb_copyarea (struct fb_info *p,
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const struct fb_copyarea *region);
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extern void i810fb_imageblit(struct fb_info *p, const struct fb_image *image);
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extern int i810fb_sync (struct fb_info *p);
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extern void i810fb_init_ringbuffer(struct fb_info *info);
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extern void i810fb_load_front (u32 offset, struct fb_info *info);
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#ifdef CONFIG_FB_I810_I2C
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/* I2C */
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extern int i810_probe_i2c_connector(struct fb_info *info, u8 **out_edid,
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int conn);
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extern void i810_create_i2c_busses(struct i810fb_par *par);
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extern void i810_delete_i2c_busses(struct i810fb_par *par);
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#else
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static inline int i810_probe_i2c_connector(struct fb_info *info, u8 **out_edid,
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int conn)
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{
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return 1;
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}
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static inline void i810_create_i2c_busses(struct i810fb_par *par) { }
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static inline void i810_delete_i2c_busses(struct i810fb_par *par) { }
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#endif
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/* Conditionals */
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#ifdef CONFIG_X86
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static inline void flush_cache(void)
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{
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asm volatile ("wbinvd":::"memory");
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}
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#else
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#define flush_cache() do { } while(0)
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#endif
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#ifdef CONFIG_MTRR
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#include <asm/mtrr.h>
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static inline void set_mtrr(struct i810fb_par *par)
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{
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par->mtrr_reg = mtrr_add((u32) par->aperture.physical,
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par->aperture.size, MTRR_TYPE_WRCOMB, 1);
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if (par->mtrr_reg < 0) {
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printk(KERN_ERR "set_mtrr: unable to set MTRR\n");
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return;
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}
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par->dev_flags |= HAS_MTRR;
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}
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static inline void unset_mtrr(struct i810fb_par *par)
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{
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if (par->dev_flags & HAS_MTRR)
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mtrr_del(par->mtrr_reg, (u32) par->aperture.physical,
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par->aperture.size);
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}
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#else
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#define set_mtrr(x) printk("set_mtrr: MTRR is disabled in the kernel\n")
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#define unset_mtrr(x) do { } while (0)
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#endif /* CONFIG_MTRR */
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#ifdef CONFIG_FB_I810_GTF
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#define IS_DVT (0)
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#else
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#define IS_DVT (1)
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#endif
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#endif /* __I810_MAIN_H__ */
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