X-Git-Url: http://git.cascardo.eti.br/?a=blobdiff_plain;f=drivers%2Fvideo%2Fvesafb.c;h=b0b9acfdd430ec3a3d64eb0e4c082130d0ff55f7;hb=55308c3712f56279d5547ef6e97d365ac3ab9e6d;hp=e25eae1a78c1de86e9f1f7f25103c12708c63a38;hpb=8e33ba49765484bc6de3a2f8143733713fa93bc1;p=cascardo%2Flinux.git diff --git a/drivers/video/vesafb.c b/drivers/video/vesafb.c index e25eae1a78c1..b0b9acfdd430 100644 --- a/drivers/video/vesafb.c +++ b/drivers/video/vesafb.c @@ -58,7 +58,6 @@ static void (*pmi_start)(void); static void (*pmi_pal)(void); static int depth; static int vga_compat; - /* --------------------------------------------------------------------- */ static int vesafb_pan_display(struct fb_var_screeninfo *var, @@ -67,15 +66,6 @@ static int vesafb_pan_display(struct fb_var_screeninfo *var, #ifdef __i386__ int offset; - if (!ypan) - return -EINVAL; - if (var->xoffset) - return -EINVAL; - if (var->yoffset > var->yres_virtual) - return -EINVAL; - if ((ypan==1) && var->yoffset+var->yres > var->yres_virtual) - return -EINVAL; - offset = (var->yoffset * info->fix.line_length + var->xoffset) / 4; __asm__ __volatile__( @@ -90,43 +80,13 @@ static int vesafb_pan_display(struct fb_var_screeninfo *var, return 0; } -static int vesafb_blank(int blank, struct fb_info *info) -{ - int err = 1; - - if (vga_compat) { - int loop = 10000; - u8 seq = 0, crtc17 = 0; - - if (blank == FB_BLANK_POWERDOWN) { - seq = 0x20; - crtc17 = 0x00; - err = 0; - } else { - seq = 0x00; - crtc17 = 0x80; - err = (blank == FB_BLANK_UNBLANK) ? 0 : -EINVAL; - } - - vga_wseq(NULL, 0x00, 0x01); - seq |= vga_rseq(NULL, 0x01) & ~0x20; - vga_wseq(NULL, 0x00, seq); - - crtc17 |= vga_rcrt(NULL, 0x17) & ~0x80; - while (loop--); - vga_wcrt(NULL, 0x17, crtc17); - vga_wseq(NULL, 0x00, 0x03); - } - - return err; -} - static void vesa_setpalette(int regno, unsigned red, unsigned green, unsigned blue) { + int shift = 16 - depth; + #ifdef __i386__ struct { u_char blue, green, red, pad; } entry; - int shift = 16 - depth; if (pmi_setpal) { entry.red = red >> shift; @@ -142,14 +102,20 @@ static void vesa_setpalette(int regno, unsigned red, unsigned green, "d" (regno), /* EDX */ "D" (&entry), /* EDI */ "S" (&pmi_pal)); /* ESI */ - } else { - /* without protected mode interface, try VGA registers... */ + return; + } +#endif + +/* + * without protected mode interface and if VGA compatible, + * try VGA registers... + */ + if (vga_compat) { outb_p(regno, dac_reg); outb_p(red >> shift, dac_val); outb_p(green >> shift, dac_val); outb_p(blue >> shift, dac_val); } -#endif } static int vesafb_setcolreg(unsigned regno, unsigned red, unsigned green, @@ -205,7 +171,6 @@ static struct fb_ops vesafb_ops = { .owner = THIS_MODULE, .fb_setcolreg = vesafb_setcolreg, .fb_pan_display = vesafb_pan_display, - .fb_blank = vesafb_blank, .fb_fillrect = cfb_fillrect, .fb_copyarea = cfb_copyarea, .fb_imageblit = cfb_imageblit, @@ -245,9 +210,8 @@ static int __init vesafb_setup(char *options) return 0; } -static int __init vesafb_probe(struct device *device) +static int __init vesafb_probe(struct platform_device *dev) { - struct platform_device *dev = to_platform_device(device); struct fb_info *info; int i, err; unsigned int size_vmode; @@ -257,6 +221,7 @@ static int __init vesafb_probe(struct device *device) if (screen_info.orig_video_isVGA != VIDEO_TYPE_VLFB) return -ENODEV; + vga_compat = (screen_info.capabilities & 2) ? 0 : 1; vesafb_fix.smem_start = screen_info.lfb_base; vesafb_defined.bits_per_pixel = screen_info.lfb_depth; if (15 == vesafb_defined.bits_per_pixel) @@ -361,6 +326,12 @@ static int __init vesafb_probe(struct device *device) } } + if (vesafb_defined.bits_per_pixel == 8 && !pmi_setpal && !vga_compat) { + printk(KERN_WARNING "vesafb: hardware palette is unchangeable,\n" + " colors may be incorrect\n"); + vesafb_fix.visual = FB_VISUAL_STATIC_PSEUDOCOLOR; + } + vesafb_defined.xres_virtual = vesafb_defined.xres; vesafb_defined.yres_virtual = vesafb_fix.smem_len / vesafb_fix.line_length; if (ypan && vesafb_defined.yres_virtual > vesafb_defined.yres) { @@ -397,7 +368,8 @@ static int __init vesafb_probe(struct device *device) printk(KERN_INFO "vesafb: %s: " "size=%d:%d:%d:%d, shift=%d:%d:%d:%d\n", (vesafb_defined.bits_per_pixel > 8) ? - "Truecolor" : "Pseudocolor", + "Truecolor" : (vga_compat || pmi_setpal) ? + "Pseudocolor" : "Static Pseudocolor", screen_info.rsvd_size, screen_info.red_size, screen_info.green_size, @@ -414,6 +386,7 @@ static int __init vesafb_probe(struct device *device) * region already (FIXME) */ request_region(0x3c0, 32, "vesafb"); +#ifdef CONFIG_MTRR if (mtrr) { unsigned int temp_size = size_total; unsigned int type = 0; @@ -451,6 +424,7 @@ static int __init vesafb_probe(struct device *device) } while (temp_size >= PAGE_SIZE && rc == -EINVAL); } } +#endif info->fbops = &vesafb_ops; info->var = vesafb_defined; @@ -458,9 +432,8 @@ static int __init vesafb_probe(struct device *device) info->flags = FBINFO_FLAG_DEFAULT | (ypan) ? FBINFO_HWACCEL_YPAN : 0; - vga_compat = (screen_info.capabilities & 2) ? 0 : 1; - printk("vesafb: Mode is %sVGA compatible\n", - (vga_compat) ? "" : "not "); + if (!ypan) + info->fbops->fb_pan_display = NULL; if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) { err = -ENOMEM; @@ -480,10 +453,11 @@ err: return err; } -static struct device_driver vesafb_driver = { - .name = "vesafb", - .bus = &platform_bus_type, +static struct platform_driver vesafb_driver = { .probe = vesafb_probe, + .driver = { + .name = "vesafb", + }, }; static struct platform_device vesafb_device = { @@ -498,12 +472,12 @@ static int __init vesafb_init(void) /* ignore error return of fb_get_options */ fb_get_options("vesafb", &option); vesafb_setup(option); - ret = driver_register(&vesafb_driver); + ret = platform_driver_register(&vesafb_driver); if (!ret) { ret = platform_device_register(&vesafb_device); if (ret) - driver_unregister(&vesafb_driver); + platform_driver_unregister(&vesafb_driver); } return ret; }