diff options
Diffstat (limited to 'hw/kdrive/trident/trident.c')
| -rw-r--r-- | hw/kdrive/trident/trident.c | 48 |
1 files changed, 39 insertions, 9 deletions
diff --git a/hw/kdrive/trident/trident.c b/hw/kdrive/trident/trident.c index df4e6cde9..7c8c9cc69 100644 --- a/hw/kdrive/trident/trident.c +++ b/hw/kdrive/trident/trident.c @@ -21,7 +21,7 @@ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR * PERFORMANCE OF THIS SOFTWARE. */ -/* $XFree86: xc/programs/Xserver/hw/kdrive/trident/trident.c,v 1.12 2000/09/27 20:46:36 keithp Exp $ */ +/* $XFree86: xc/programs/Xserver/hw/kdrive/trident/trident.c,v 1.13 2000/10/11 06:04:40 keithp Exp $ */ #include "trident.h" #define extern @@ -33,14 +33,32 @@ Bool tridentCardInit (KdCardInfo *card) { - int k; - char *pixels; + int k; + char *pixels; TridentCardInfo *tridentc; + CARD8 r39; tridentc = (TridentCardInfo *) xalloc (sizeof (TridentCardInfo)); if (!tridentc) return FALSE; + iopl (3); + tridentc->cop_base = (CARD8 *) KdMapDevice (TRIDENT_COP_BASE(card), + TRIDENT_COP_SIZE(card)); + tridentc->cop = (Cop *) (tridentc->cop_base + TRIDENT_COP_OFF(card)); + tridentc->mmio = FALSE; + r39 = tridentReadIndex (tridentc, 0x3d4, 0x39); + if (r39 & 1) + { + tridentc->mmio = TRUE; + r39 = tridentReadIndex (tridentc, 0x3d4, 0x39); + if ((r39 & 1) == 0) + { + ErrorF ("Trident: inconsisent IO mapping values\n"); + return FALSE; + } + } + #ifdef VESA if (!vesaInitialize (card, &tridentc->vesa)) #else @@ -51,11 +69,6 @@ tridentCardInit (KdCardInfo *card) return FALSE; } - iopl (3); - tridentc->cop_base = (CARD8 *) KdMapDevice (TRIDENT_COP_BASE(card), - TRIDENT_COP_SIZE(card)); - tridentc->cop = (Cop *) (tridentc->cop_base + TRIDENT_COP_OFF(card)); - tridentc->mmio = FALSE; #ifdef USE_PCI tridentc->window = (CARD32 *) (tridentc->cop_base + 0x10000); #else @@ -92,15 +105,32 @@ tridentScreenInit (KdScreenInfo *screen) if (tridents->vesa.mapping != VESA_LINEAR) screen->dumb = TRUE; tridents->screen = tridents->vesa.fb; + memory = tridents->vesa.fb_size; #else tridents->screen = tridentc->fb.fb; + memory = (2048 + 512) * 1024; #endif screen_size = screen->fb[0].byteStride * screen->height; - memory = (2048 + 512) * 1024; if (tridents->screen && memory >= screen_size + 2048) + { + memory -= 2048; tridents->cursor_base = tridents->screen + memory - 2048; + } else tridents->cursor_base = 0; + memory -= screen_size; +#if 0 + if (memory > screen->fb[0].byteStride) + { + screen->off_screen = tridents->screen + screen_size; + screen->off_screen_size = memory - screen_size; + } + else + { + screen->off_screen = 0; + screen->off_screen_size = 0; + } +#endif screen->driver = tridents; return TRUE; } |