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Diffstat (limited to 'drivers/video/i810/i810_main.h')
| -rw-r--r-- | drivers/video/i810/i810_main.h | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/drivers/video/i810/i810_main.h b/drivers/video/i810/i810_main.h new file mode 100644 index 000000000000..43b4297b4d48 --- /dev/null +++ b/drivers/video/i810/i810_main.h @@ -0,0 +1,127 @@ +/*-*- linux-c -*- + * linux/drivers/video/i810fb_main.h -- Intel 810 frame buffer device + * main header file + * + * Copyright (C) 2001 Antonino Daplas<adaplas@pol.net> + * All Rights Reserved + * + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive for + * more details. + */ + +#ifndef __I810_MAIN_H__ +#define __I810_MAIN_H__ + +static int __devinit i810fb_init_pci (struct pci_dev *dev, + const struct pci_device_id *entry); +static void __exit i810fb_remove_pci(struct pci_dev *dev); +static int i810fb_resume(struct pci_dev *dev); +static int i810fb_suspend(struct pci_dev *dev, pm_message_t state); + +/* + * voffset - framebuffer offset in MiB from aperture start address. In order for + * the driver to work with X, we must try to use memory holes left untouched by X. The + * following table lists where X's different surfaces start at. + * + * --------------------------------------------- + * : : 64 MiB : 32 MiB : + * ---------------------------------------------- + * : FrontBuffer : 0 : 0 : + * : DepthBuffer : 48 : 16 : + * : BackBuffer : 56 : 24 : + * ---------------------------------------------- + * + * So for chipsets with 64 MiB Aperture sizes, 32 MiB for v_offset is okay, allowing up to + * 15 + 1 MiB of Framebuffer memory. For 32 MiB Aperture sizes, a v_offset of 8 MiB should + * work, allowing 7 + 1 MiB of Framebuffer memory. + * Note, the size of the hole may change depending on how much memory you allocate to X, + * and how the memory is split up between these surfaces. + * + * Note: Anytime the DepthBuffer or FrontBuffer is overlapped, X would still run but with + * DRI disabled. But if the Frontbuffer is overlapped, X will fail to load. + * + * Experiment with v_offset to find out which works best for you. + */ +static u32 v_offset_default __initdata; /* For 32 MiB Aper size, 8 should be the default */ +static u32 voffset __initdata = 0; + +static int i810fb_cursor(struct fb_info *info, struct fb_cursor *cursor); + +/* Chipset Specific Functions */ +static int i810fb_set_par (struct fb_info *info); +static int i810fb_getcolreg (u8 regno, u8 *red, u8 *green, u8 *blue, + u8 *transp, struct fb_info *info); +static int i810fb_setcolreg (unsigned regno, unsigned red, unsigned green, unsigned blue, + unsigned transp, struct fb_info *info); +static int i810fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info); +static int i810fb_blank (int blank_mode, struct fb_info *info); + +/* Initialization */ +static void i810fb_release_resource (struct fb_info *info, struct i810fb_par *par); +extern int __init agp_intel_init(void); + + +/* Video Timings */ +extern void round_off_xres (u32 *xres); +extern void round_off_yres (u32 *xres, u32 *yres); +extern u32 i810_get_watermark (const struct fb_var_screeninfo *var, + struct i810fb_par *par); +extern void i810fb_encode_registers(const struct fb_var_screeninfo *var, + struct i810fb_par *par, u32 xres, u32 yres); +extern void i810fb_fill_var_timings(struct fb_var_screeninfo *var); + +/* Accelerated Functions */ +extern void i810fb_fillrect (struct fb_info *p, + const struct fb_fillrect *rect); +extern void i810fb_copyarea (struct fb_info *p, + const struct fb_copyarea *region); +extern void i810fb_imageblit(struct fb_info *p, const struct fb_image *image); +extern int i810fb_sync (struct fb_info *p); + +extern void i810fb_init_ringbuffer(struct fb_info *info); +extern void i810fb_load_front (u32 offset, struct fb_info *info); + +/* Conditionals */ +#ifdef CONFIG_X86 +inline void flush_cache(void) +{ + asm volatile ("wbinvd":::"memory"); +} +#else +#define flush_cache() do { } while(0) +#endif + +#ifdef CONFIG_MTRR +#define KERNEL_HAS_MTRR 1 +static inline void __devinit set_mtrr(struct i810fb_par *par) +{ + par->mtrr_reg = mtrr_add((u32) par->aperture.physical, + par->aperture.size, MTRR_TYPE_WRCOMB, 1); + if (par->mtrr_reg < 0) { + printk(KERN_ERR "set_mtrr: unable to set MTRR\n"); + return; + } + par->dev_flags |= HAS_MTRR; +} +static inline void unset_mtrr(struct i810fb_par *par) +{ + if (par->dev_flags & HAS_MTRR) + mtrr_del(par->mtrr_reg, (u32) par->aperture.physical, + par->aperture.size); +} +#else +#define KERNEL_HAS_MTRR 0 +#define set_mtrr(x) printk("set_mtrr: MTRR is disabled in the kernel\n") + +#define unset_mtrr(x) do { } while (0) +#endif /* CONFIG_MTRR */ + +#ifdef CONFIG_FB_I810_GTF +#define IS_DVT (0) +#else +#define IS_DVT (1) +#endif + +#endif /* __I810_MAIN_H__ */ |