static int vram __initdata = 0; /* Set amount of memory to be used */
static int pmi_setpal = 0; /* pmi for palette changes ??? */
static int ypan = 0; /* 0..nothing, 1..ypan, 2..ywrap */
-static unsigned short *pmi_base = 0;
+static unsigned short *pmi_base = NULL;
static void (*pmi_start)(void);
static void (*pmi_pal)(void);
return 0;
}
-static void vesa_setpalette(int regno, unsigned red, unsigned green, unsigned blue)
+static void vesa_setpalette(int regno, unsigned red, unsigned green,
+ unsigned blue, struct fb_var_screeninfo *var)
{
#ifdef __i386__
struct { u_char blue, green, red, pad; } entry;
+ int shift = 16 - var->green.length;
if (pmi_setpal) {
- entry.red = red >> 10;
- entry.green = green >> 10;
- entry.blue = blue >> 10;
+ entry.red = red >> shift;
+ entry.green = green >> shift;
+ entry.blue = blue >> shift;
entry.pad = 0;
__asm__ __volatile__(
"call *(%%esi)"
} else {
/* without protected mode interface, try VGA registers... */
outb_p(regno, dac_reg);
- outb_p(red >> 10, dac_val);
- outb_p(green >> 10, dac_val);
- outb_p(blue >> 10, dac_val);
+ outb_p(red >> shift, dac_val);
+ outb_p(green >> shift, dac_val);
+ outb_p(blue >> shift, dac_val);
}
#endif
}
switch (info->var.bits_per_pixel) {
case 8:
- vesa_setpalette(regno,red,green,blue);
+ vesa_setpalette(regno,red,green,blue, &info->var);
break;
case 16:
if (info->var.red.offset == 10) {
vesafb_defined.left_margin = (vesafb_defined.xres / 8) & 0xf8;
vesafb_defined.hsync_len = (vesafb_defined.xres / 8) & 0xf8;
- if (vesafb_defined.bits_per_pixel > 8) {
- vesafb_defined.red.offset = screen_info.red_pos;
- vesafb_defined.red.length = screen_info.red_size;
- vesafb_defined.green.offset = screen_info.green_pos;
- vesafb_defined.green.length = screen_info.green_size;
- vesafb_defined.blue.offset = screen_info.blue_pos;
- vesafb_defined.blue.length = screen_info.blue_size;
- vesafb_defined.transp.offset = screen_info.rsvd_pos;
- vesafb_defined.transp.length = screen_info.rsvd_size;
- printk(KERN_INFO "vesafb: directcolor: "
- "size=%d:%d:%d:%d, shift=%d:%d:%d:%d\n",
- screen_info.rsvd_size,
- screen_info.red_size,
- screen_info.green_size,
- screen_info.blue_size,
- screen_info.rsvd_pos,
- screen_info.red_pos,
- screen_info.green_pos,
- screen_info.blue_pos);
- } else {
- vesafb_defined.red.length = 6;
- vesafb_defined.green.length = 6;
- vesafb_defined.blue.length = 6;
- }
+ vesafb_defined.red.offset = screen_info.red_pos;
+ vesafb_defined.red.length = screen_info.red_size;
+ vesafb_defined.green.offset = screen_info.green_pos;
+ vesafb_defined.green.length = screen_info.green_size;
+ vesafb_defined.blue.offset = screen_info.blue_pos;
+ vesafb_defined.blue.length = screen_info.blue_size;
+ vesafb_defined.transp.offset = screen_info.rsvd_pos;
+ vesafb_defined.transp.length = screen_info.rsvd_size;
+ printk(KERN_INFO "vesafb: %s: "
+ "size=%d:%d:%d:%d, shift=%d:%d:%d:%d\n",
+ (vesafb_defined.bits_per_pixel > 8) ?
+ "Truecolor" : "Pseudocolor",
+ screen_info.rsvd_size,
+ screen_info.red_size,
+ screen_info.green_size,
+ screen_info.blue_size,
+ screen_info.rsvd_pos,
+ screen_info.red_pos,
+ screen_info.green_pos,
+ screen_info.blue_pos);
vesafb_fix.ypanstep = ypan ? 1 : 0;
vesafb_fix.ywrapstep = (ypan>1) ? 1 : 0;
info->fbops = &vesafb_ops;
info->var = vesafb_defined;
info->fix = vesafb_fix;
- info->flags = FBINFO_FLAG_DEFAULT;
+ info->flags = FBINFO_FLAG_DEFAULT |
+ (ypan) ? FBINFO_HWACCEL_YPAN : 0;
if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) {
err = -ENXIO;
int __init vesafb_init(void)
{
int ret;
+ char *option = NULL;
+ /* ignore error return of fb_get_options */
+ fb_get_options("vesafb", &option);
+ vesafb_setup(option);
ret = driver_register(&vesafb_driver);
if (!ret) {
}
return ret;
}
+module_init(vesafb_init);
/*
* Overrides for Emacs so that we follow Linus's tabbing style.