8 #include "checksumrect.h"
10 static void tnt2_getvmode(void *priv);
12 static struct fbdevice tnt2_fb = {
13 .getvmode = &tnt2_getvmode,
16 static unsigned int vgard(unsigned char a)
19 return (unsigned int)inb(0x3D5);
22 static void tnt2_getvmode(void *priv)
24 tnt2_fb.curmode.xres = (vgard(0x1) + 1) * 8;
25 tnt2_fb.curmode.yres = (vgard(0x12) | (vgard(0x7) & 2) << 7 | (vgard(0x7) & 0x40) << 3) + 1;
29 tnt2_fb.curmode.format = FB_RGB888;
30 tnt2_fb.curmode.bytestride = 4;
31 tnt2_fb.curmode.text = 0;
32 tnt2_fb.checksum_rect = checksum_rect_generic32;
35 tnt2_fb.curmode.text = 1;
38 tnt2_fb.curmode.text = 1;
39 outputf("Unknown TNT2 format %x", vgard(0x28));
44 static int tnt2_probe(struct pci_dev *pci, void *data)
48 if (pci->bars[1].type != PCI_BAR_MEMORY32)
50 output("TNT2 BAR1 is not memory32?");
54 /* Map 32M of memory. */
55 for (p = 0; p < 32; p += 4)
56 addmap_4m(0x40000000 + p*1024*1024, pci->bars[1].addr + p*1024*1024);
57 tnt2_fb.fbaddr = (void *)0x40000000;
60 outputf("Found TNT2 with FB at %08x, mapped to %08x", pci->bars[1].addr, tnt2_fb.fbaddr);
64 static struct pci_id tnt2_pci[] = {
65 {0x10DE, 0x0028, "TNT2", "RIVA TNT2"}
68 struct pci_driver tnt2_driver = {
72 .id_count = sizeof(tnt2_pci)/sizeof(tnt2_pci[0]),