git.joshuawise.com / netwatch.git / blame
| Commit | Line | Data |
|---|---|---|
| 98e930a2 JP |
1 | /* tnt2.c |
| 2 | * NVidia TNT2 driver. | |
| 3 | * NetWatch system management mode administration console | |
| 4 | * | |
| 5 | * Copyright (c) 2008 Jacob Potter and Joshua Wise. All rights reserved. | |
| 6 | * This program is free software; you can redistribute and/or modify it under | |
| 7 | * the terms found in the file LICENSE in the root of this source tree. | |
| 8 | * | |
| 9 | */ | |
| 10 | ||
| 34a7d0d2 JW |
11 | #include <minilib.h> |
| 12 | #include <io.h> | |
| 13 | #include <pci.h> | |
| 14 | #include <output.h> | |
| 15 | #include <fb.h> | |
| e8f20fe7 | 16 | #include <paging.h> |
| cdde55f5 | 17 | #include <text.h> |
| 34a7d0d2 | 18 | |
| 66cd7e82 | 19 | #include "generic.h" |
| 0a9d0188 | 20 | |
| 34a7d0d2 JW |
21 | static void tnt2_getvmode(void *priv); |
| 22 | ||
| 23 | static struct fbdevice tnt2_fb = { | |
| 24 | .getvmode = &tnt2_getvmode, | |
| 25 | }; | |
| 26 | ||
| 27 | static unsigned int vgard(unsigned char a) | |
| 28 | { | |
| c77a83d6 | 29 | outb(0x3D4, a); |
| 34a7d0d2 JW |
30 | return (unsigned int)inb(0x3D5); |
| 31 | } | |
| 32 | ||
| 33 | static void tnt2_getvmode(void *priv) | |
| 34 | { | |
| 35 | tnt2_fb.curmode.xres = (vgard(0x1) + 1) * 8; | |
| 36 | tnt2_fb.curmode.yres = (vgard(0x12) | (vgard(0x7) & 2) << 7 | (vgard(0x7) & 0x40) << 3) + 1; | |
| 37 | switch (vgard(0x28)) | |
| 38 | { | |
| c77a83d6 | 39 | case 3: |
| 34a7d0d2 JW |
40 | tnt2_fb.curmode.format = FB_RGB888; |
| 41 | tnt2_fb.curmode.bytestride = 4; | |
| 42 | tnt2_fb.curmode.text = 0; | |
| 0a9d0188 | 43 | tnt2_fb.checksum_rect = checksum_rect_generic32; |
| 66cd7e82 | 44 | tnt2_fb.copy_pixels = copy_pixels_generic32; |
| 34a7d0d2 JW |
45 | break; |
| 46 | case 0: | |
| 47 | tnt2_fb.curmode.text = 1; | |
| 66cd7e82 JW |
48 | tnt2_fb.checksum_rect = text_checksum; |
| 49 | tnt2_fb.copy_pixels = text_render; | |
| 34a7d0d2 JW |
50 | break; |
| 51 | default: | |
| c77a83d6 | 52 | tnt2_fb.curmode.text = 1; |
| 66cd7e82 JW |
53 | tnt2_fb.checksum_rect = text_checksum; |
| 54 | tnt2_fb.copy_pixels = text_render; | |
| c77a83d6 | 55 | outputf("Unknown TNT2 format %x", vgard(0x28)); |
| 34a7d0d2 JW |
56 | break; |
| 57 | } | |
| 58 | } | |
| 59 | ||
| 60 | static int tnt2_probe(struct pci_dev *pci, void *data) | |
| 61 | { | |
| e8f20fe7 JW |
62 | unsigned int p; |
| 63 | ||
| 34a7d0d2 JW |
64 | if (pci->bars[1].type != PCI_BAR_MEMORY32) |
| 65 | { | |
| 66 | output("TNT2 BAR1 is not memory32?"); | |
| 67 | return 0; | |
| 68 | } | |
| e8f20fe7 JW |
69 | |
| 70 | /* Map 32M of memory. */ | |
| 71 | for (p = 0; p < 32; p += 4) | |
| 72 | addmap_4m(0x40000000 + p*1024*1024, pci->bars[1].addr + p*1024*1024); | |
| 73 | tnt2_fb.fbaddr = (void *)0x40000000; | |
| 74 | ||
| 34a7d0d2 | 75 | fb = &tnt2_fb; |
| e8f20fe7 | 76 | outputf("Found TNT2 with FB at %08x, mapped to %08x", pci->bars[1].addr, tnt2_fb.fbaddr); |
| 34a7d0d2 JW |
77 | return 1; |
| 78 | } | |
| 79 | ||
| 80 | static struct pci_id tnt2_pci[] = { | |
| 81 | {0x10DE, 0x0028, "TNT2", "RIVA TNT2"} | |
| 82 | }; | |
| 83 | ||
| 84 | struct pci_driver tnt2_driver = { | |
| 85 | .name = "tnt2", | |
| 86 | .probe = tnt2_probe, | |
| 87 | .ids = tnt2_pci, | |
| 88 | .id_count = sizeof(tnt2_pci)/sizeof(tnt2_pci[0]), | |
| 89 | }; |