ref: 600bbfe4aaa9ad0f73d8d73eef1b7670e5f7d3a3
dir: /os/pc/vgamach64xx.c/
#include "u.h"
#include "../port/lib.h"
#include "mem.h"
#include "dat.h"
#include "fns.h"
#include "io.h"
#include "../port/pci.h"
#include "../port/error.h"
#define Image IMAGE
#include <draw.h>
#include <memdraw.h>
#include <cursor.h>
#include "screen.h"
char Eunsupportedformat[] = "unsupported video format";
char Enotconfigured[] = "device not configured";
#define SCALE_ZERO_EXTEND 0x0
#define SCALE_DYNAMIC 0x1
#define SCALE_RED_TEMP_6500K 0x0
#define SCALE_RED_TEMP_9800K 0x2
#define SCALE_HORZ_BLEND 0x0
#define SCALE_HORZ_REP 0x4
#define SCALE_VERT_BLEND 0x0
#define SCALE_VERT_REP 0x8
#define SCALE_BANDWIDTH_NORMAL 0x0
#define SCALE_BANDWIDTH_EXCEEDED 0x4000000
#define SCALE_BANDWIDTH_RESET 0x4000000
#define SCALE_CLK_ACTIVITY 0x0
#define SCALE_CLK_CONTINUOUS 0x20000000
#define OVERLAY_DISABLE 0x0
#define OVERLAY_ENABLE 0x40000000
#define SCALE_DISABLE 0x0
#define SCALE_ENABLE 0x80000000
#define SCALER_FRAME_READ_MODE_FULL 0x0
#define SCALER_BUF_MODE_SINGLE 0x0
#define SCALER_BUF_MODE_DOUBLE 0x40000
#define SCALER_BUF_NEXT_0 0x0
#define SCALER_BUF_NEXT_1 0x80000
#define SCALER_BUF_STATUS_0 0x0
#define SCALER_BUF_STATUS_1 0x100000
#define OVERLAY_MIX_G_CMP 0x0
#define OVERLAY_MIX_ALWAYS_G 0x100
#define OVERLAY_MIX_ALWAYS_V 0x200
#define OVERLAY_MIX_NOT_G 0x300
#define OVERLAY_MIX_NOT_V 0x400
#define OVERLAY_MIX_G_XOR_V 0x500
#define OVERLAY_MIX_NOT_G_XOR_V 0x600
#define OVERLAY_MIX_V_CMP 0x700
#define OVERLAY_MIX_NOT_G_OR_NOT_V 0x800
#define OVERLAY_MIX_G_OR_NOT_V 0x900
#define OVERLAY_MIX_NOT_G_OR_V 0xA00
#define OVERLAY_MIX_G_OR_V 0xB00
#define OVERLAY_MIX_G_AND_V 0xC00
#define OVERLAY_MIX_NOT_G_AND_V 0xD00
#define OVERLAY_MIX_G_AND_NOT_V 0xE00
#define OVERLAY_MIX_NOT_G_AND_NOT_V 0xF00
#define OVERLAY_EXCLUSIVE_NORMAL 0x0
#define OVERLAY_EXCLUSIVE_V_ONLY 0x80000000
#define VIDEO_IN_8BPP 0x2
#define VIDEO_IN_16BPP 0x4
#define VIDEO_IN_32BPP 0x6
#define VIDEO_IN_VYUY422 0xB /*16 bpp */
#define VIDEO_IN_YVYU422 0xC /* 16 bpp */
#define SCALE_IN_15BPP 0x30000 /* aRGB 1555 */
#define SCALE_IN_16BPP 0x40000 /* RGB 565 */
#define SCALE_IN_32BPP 0x60000 /* aRGB 8888 */
#define SCALE_IN_YUV9 0x90000 /* planar */
#define SCALE_IN_YUV12 0xA0000 /* planar */
#define SCALE_IN_VYUY422 0xB0000 /* 16 bpp */
#define SCALE_IN_YVYU422 0xC0000 /* 16 bpp */
#define HOST_YUV_APERTURE_UPPER 0x0
#define HOST_YUV_APERTURE_LOWER 0x20000000
#define HOST_MEM_MODE_Y 0x40000000
#define HOST_MEM_MODE_U 0x80000000
#define HOST_MEM_MODE_V 0xC0000000
#define HOST_MEM_MODE_NORMAL HOST_YUV_APERTURE_UPPER
static Chan *ovl_chan; /* Channel of controlling process */
static int ovl_width; /* Width of input overlay buffer */
static int ovl_height; /* Height of input overlay buffer */
static int ovl_format; /* Overlay format */
static ulong ovl_fib; /* Frame in bytes */
enum {
VTGTB1S1 = 0x01, // Asic description for VTB1S1 and GTB1S1.
VT4GTIIC = 0x3A, // asic descr for VT4 and RAGE IIC
GTB1U1 = 0x19, // Asic description for GTB1U1.
GTB1S2 = 0x41, // Asic description for GTB1S2.
GTB2U1 = 0x1A,
GTB2U2 = 0x5A,
GTB2U3 = 0x9A,
GTIIIC1U1 = 0x1B, // 3D RAGE PRO asic descrp.
GTIIIC1U2 = 0x5B, // 3D RAGE PRO asic descrp.
GTIIIC2U1 = 0x1C, // 3D RAGE PRO asic descrp.
GTIIIC2U2 = 0x5C, // 3D RAGE PRO asic descrp.
GTIIIC2U3 = 0x7C, // 3D RAGE PRO asic descrp.
GTBC = 0x3A, // 3D RAGE IIC asic descrp.
LTPRO = 0x9C, // 3D RAGE LT PRO
};
/*
* ATI Mach64(CT|ET|G*|V*|L*).
*/
typedef struct Mach64types Mach64types;
struct Mach64types {
ushort m64_id; /* Chip ID */
int m64_vtgt; /* Is this a VT or GT chipset? */
ulong m64_ovlclock; /* Max. overlay clock frequency */
int m64_pro; /* Is this a PRO? */
};
static ulong mach64refclock;
static Mach64types *mach64type;
static int mach64revb; /* Revision B or greater? */
static ulong mach64overlay; /* Overlay buffer */
static Mach64types mach64s[] = {
('C'<<8)|'T', 0, 1350000, /*?*/ 0, /* 4354: CT */
('E'<<8)|'T', 0, 1350000, /*?*/ 0, /* 4554: ET */
('G'<<8)|'B', 1, 1250000, 1, /* 4742: 264GT PRO */
('G'<<8)|'D', 1, 1250000, 1, /* 4744: 264GT PRO */
('G'<<8)|'I', 1, 1250000, 1, /* 4749: 264GT PRO */
('G'<<8)|'M', 0, 1350000, 0, /* 474D: Rage XL */
('G'<<8)|'P', 1, 1250000, 1, /* 4750: 264GT PRO */
('G'<<8)|'Q', 1, 1250000, 1, /* 4751: 264GT PRO */
('G'<<8)|'R', 1, 1250000, 1, /* 4752: */
('G'<<8)|'T', 1, 800000, 0, /* 4754: 264GT[B] */
('G'<<8)|'U', 1, 1000000, 0, /* 4755: 264GT DVD */
('G'<<8)|'V', 1, 1000000, 0, /* 4756: Rage2C */
('G'<<8)|'Z', 1, 1000000, 0, /* 475A: Rage2C */
('V'<<8)|'T', 1, 800000, 0, /* 5654: 264VT/GT/VTB */
('V'<<8)|'U', 1, 800000, 0, /* 5655: 264VT3 */
('V'<<8)|'V', 1, 1000000, 0, /* 5656: 264VT4 */
('L'<<8)|'B', 0, 1350000, 1, /* 4C42: Rage LTPro AGP */
('L'<<8)|'I', 0, 1350000, 0, /* 4C49: Rage LTPro AGP */
('L'<<8)|'M', 0, 1350000, 0, /* 4C4D: Rage Mobility */
('L'<<8)|'P', 0, 1350000, 1, /* 4C50: 264LT PRO */
};
static int hwfill(VGAscr*, Rectangle, ulong);
static int hwscroll(VGAscr*, Rectangle, Rectangle);
static void initengine(VGAscr*);
static Pcidev*
mach64xxpci(void)
{
Pcidev *p;
int i;
if((p = pcimatch(nil, 0x1002, 0)) == nil)
return nil;
for (i = 0; i != nelem(mach64s); i++)
if (mach64s[i].m64_id == p->did) {
mach64type = &mach64s[i];
return p;
}
return nil;
}
static void
mach64xxenable(VGAscr* scr)
{
Pcidev *p;
/*
* Only once, can't be disabled for now.
*/
if(scr->io)
return;
if(p = mach64xxpci()){
scr->id = p->did;
/*
* The CT doesn't always have the I/O base address
* in the PCI base registers. There is a way to find
* it via the vendor-specific PCI config space but
* this will do for now.
*/
scr->io = p->mem[1].bar & ~0x03;
if(scr->io == 0)
scr->io = 0x2EC;
}
}
static ulong
mach64xxlinear(VGAscr* scr, int* size, int* align)
{
ulong aperture, osize, oaperture;
int i, oapsize, wasupamem;
Pcidev *p;
osize = *size;
oaperture = scr->aperture;
oapsize = scr->apsize;
wasupamem = scr->isupamem;
if(p = mach64xxpci()){
for(i=0; i<nelem(p->mem); i++){
if(p->mem[i].size >= *size
&& ((p->mem[i].bar & ~0x0F) & (*align-1)) == 0)
break;
}
if(i >= nelem(p->mem)){
print("vgamach64xx: aperture not found\n");
return 0;
}
aperture = p->mem[i].bar & ~0x0F;
*size = p->mem[i].size;
}
else
aperture = 0;
if(wasupamem)
upafree(oaperture, oapsize);
scr->isupamem = 0;
aperture = upamalloc(aperture, *size, *align);
if(aperture == 0){
if(wasupamem && upamalloc(oaperture, oapsize, 0))
scr->isupamem = 1;
}
else
scr->isupamem = 1;
scr->mmio = KADDR(aperture+osize-0x400);
if(oaperture && oaperture != aperture)
print("warning (BUG): redefinition of aperture does not change mach64mmio segment\n");
addvgaseg("mach64mmio", aperture+osize-BY2PG, BY2PG);
addvgaseg("mach64screen", aperture, osize);
return aperture;
}
enum {
CrtcOffPitch = 0x05,
CrtcGenCtl = 0x07,
CurClr0 = 0x0B, /* I/O Select */
CurClr1 = 0x0C,
CurOffset = 0x0D,
CurHVposn = 0x0E,
CurHVoff = 0x0F,
BusCntl = 0x13,
GenTestCntl = 0x19,
CrtcHsyncDis = 0x04,
CrtcVsyncDis = 0x08,
ContextMask = 0x100, /* not accessible via I/O */
FifoStat,
GuiStat,
DpFrgdClr,
DpBkgdClr,
DpWriteMask,
DpMix,
DpPixWidth,
DpSrc,
ClrCmpCntl,
GuiTrajCntl,
ScLeftRight,
ScTopBottom,
DstOffPitch,
DstYX,
DstHeightWidth,
DstCntl,
DstHeight,
DstBresErr,
DstBresInc,
DstBresDec,
SrcCntl,
SrcHeight1Width1,
SrcHeight2Width2,
SrcYX,
SrcWidth1,
SrcYXstart,
HostCntl,
PatReg0,
PatReg1,
PatCntl,
ScBottom,
ScLeft,
ScRight,
ScTop,
ClrCmpClr,
ClrCmpMask,
DpChainMask,
SrcOffPitch,
LcdIndex,
LcdData,
ClockCntl,
OverlayScaleCntl,
ConfigChipId,
Buf0Pitch,
ScalerBuf0Pitch,
CaptureConfig,
OverlayKeyCntl,
ScalerColourCntl,
ScalerHCoef0,
ScalerHCoef1,
ScalerHCoef2,
ScalerHCoef3,
ScalerHCoef4,
VideoFormat,
Buf0Offset,
ScalerBuf0Offset,
CrtcGenCntl,
OverlayScaleInc,
OverlayYX,
OverlayYXEnd,
ScalerHeightWidth,
HTotalDisp,
VTotalDisp,
};
enum {
LCD_ConfigPanel = 0,
LCD_GenCtrl,
LCD_DstnCntl,
LCD_HfbPitchAddr,
LCD_HorzStretch,
LCD_VertStretch,
LCD_ExtVertStretch,
LCD_LtGio,
LCD_PowerMngmnt,
LCD_ZvgPio,
Nlcd,
};
#define Bank1 (-0x100) /* 1KB */
static int mmoffset[] = {
[HTotalDisp] 0x00,
[VTotalDisp] 0x02,
[CrtcOffPitch] 0x05,
[CrtcGenCntl] 0x07,
[CurClr0] 0x18,
[CurClr1] 0x19,
[CurOffset] 0x1A,
[CurHVposn] 0x1B,
[CurHVoff] 0x1C,
[ClockCntl] 0x24,
[BusCntl] 0x28,
[LcdIndex] 0x29,
[LcdData] 0x2A,
[GenTestCntl] 0x34,
[ConfigChipId] 0x38,
[DstOffPitch] 0x40,
[DstYX] 0x43,
[DstHeight] 0x45,
[DstHeightWidth] 0x46,
[DstBresErr] 0x49,
[DstBresInc] 0x4A,
[DstBresDec] 0x4B,
[DstCntl] 0x4C,
[SrcOffPitch] 0x60,
[SrcYX] 0x63,
[SrcWidth1] 0x64,
[SrcYXstart] 0x69,
[SrcHeight1Width1] 0x66,
[SrcHeight2Width2] 0x6C,
[SrcCntl] 0x6D,
[HostCntl] 0x90,
[PatReg0] 0xA0,
[PatReg1] 0xA1,
[PatCntl] 0xA2,
[ScLeft] 0xA8,
[ScRight] 0xA9,
[ScLeftRight] 0xAA,
[ScTop] 0xAB,
[ScBottom] 0xAC,
[ScTopBottom] 0xAD,
[DpBkgdClr] 0xB0,
[DpFrgdClr] 0xB1,
[DpWriteMask] 0xB2,
[DpChainMask] 0xB3,
[DpPixWidth] 0xB4,
[DpMix] 0xB5,
[DpSrc] 0xB6,
[ClrCmpClr] 0xC0,
[ClrCmpMask] 0xC1,
[ClrCmpCntl] 0xC2,
[FifoStat] 0xC4,
[ContextMask] 0xC8,
[GuiTrajCntl] 0xCC,
[GuiStat] 0xCE,
/* Bank1 */
[OverlayYX] Bank1 + 0x00,
[OverlayYXEnd] Bank1 + 0x01,
[OverlayKeyCntl] Bank1 + 0x06,
[OverlayScaleInc] Bank1 + 0x08,
[OverlayScaleCntl] Bank1 + 0x09,
[ScalerHeightWidth] Bank1 + 0x0A,
[ScalerBuf0Offset] Bank1 + 0x0D,
[ScalerBuf0Pitch] Bank1 + 0x0F,
[VideoFormat] Bank1 + 0x12,
[CaptureConfig] Bank1 + 0x14,
[Buf0Offset] Bank1 + 0x20,
[Buf0Pitch] Bank1 + 0x23,
[ScalerColourCntl] Bank1 + 0x54,
[ScalerHCoef0] Bank1 + 0x55,
[ScalerHCoef1] Bank1 + 0x56,
[ScalerHCoef2] Bank1 + 0x57,
[ScalerHCoef3] Bank1 + 0x58,
[ScalerHCoef4] Bank1 + 0x59,
};
static ulong
ior32(VGAscr* scr, int r)
{
if(scr->io == 0x2EC || scr->io == 0x1C8)
return inl((r<<10)+scr->io);
if(r >= 0x100 && scr->mmio != nil)
return scr->mmio[mmoffset[r]];
return inl((mmoffset[r]<<2)+scr->io);
}
static void
iow32(VGAscr* scr, int r, ulong l)
{
if(scr->io == 0x2EC || scr->io == 0x1C8)
outl(((r)<<10)+scr->io, l);
else if(r >= 0x100 && scr->mmio != nil)
scr->mmio[mmoffset[r]] = l;
else
outl((mmoffset[r]<<2)+scr->io, l);
}
static ulong
lcdr32(VGAscr *scr, ulong r)
{
ulong or;
or = ior32(scr, LcdIndex);
iow32(scr, LcdIndex, (or&~0x0F) | (r&0x0F));
return ior32(scr, LcdData);
}
static void
lcdw32(VGAscr *scr, ulong r, ulong v)
{
ulong or;
or = ior32(scr, LcdIndex);
iow32(scr, LcdIndex, (or&~0x0F) | (r&0x0F));
iow32(scr, LcdData, v);
}
static void
mach64xxcurdisable(VGAscr* scr)
{
ulong r;
r = ior32(scr, GenTestCntl);
iow32(scr, GenTestCntl, r & ~0x80);
}
static void
mach64xxcurload(VGAscr* scr, Cursor* curs)
{
uchar *p;
int i, y;
ulong c, s, m, r;
/*
* Disable the cursor.
*/
r = ior32(scr, GenTestCntl);
iow32(scr, GenTestCntl, r & ~0x80);
p = KADDR(scr->aperture);
p += scr->storage;
/*
* Initialise the 64x64 cursor RAM array.
* The cursor mode gives the following truth table:
* p1 p0 colour
* 0 0 Cursor Colour 0
* 0 1 Cursor Colour 1
* 1 0 Transparent
* 1 1 Complement
* Put the cursor into the top-right of the 64x64 array.
*/
for(y = 0; y < 16; y++){
for(i = 0; i < (64-16)/8; i++){
*p++ = 0xAA;
*p++ = 0xAA;
}
c = (curs->clr[2*y]<<8)|curs->clr[y*2 + 1];
s = (curs->set[2*y]<<8)|curs->set[y*2 + 1];
m = 0x00000000;
for(i = 0; i < 16; i++){
if(s & (1<<(15-i)))
m |= 0x01<<(2*i);
else if(c & (1<<(15-i))){
/* nothing to do */
}
else
m |= 0x02<<(2*i);
}
*p++ = m;
*p++ = m>>8;
*p++ = m>>16;
*p++ = m>>24;
}
memset(p, 0xAA, (64-16)*16);
/*
* Set the cursor hotpoint and enable the cursor.
*/
scr->offset = curs->offset;
iow32(scr, GenTestCntl, 0x80|r);
}
static int
ptalmostinrect(Point p, Rectangle r)
{
return p.x>=r.min.x && p.x<=r.max.x &&
p.y>=r.min.y && p.y<=r.max.y;
}
/*
* If necessary, translate the rectangle physr
* some multiple of [dx dy] so that it includes p.
* Return 1 if the rectangle changed.
*/
static int
screenpan(Point p, Rectangle *physr, int dx, int dy)
{
int d;
if(ptalmostinrect(p, *physr))
return 0;
if(p.y < physr->min.y){
d = physr->min.y - (p.y&~(dy-1));
physr->min.y -= d;
physr->max.y -= d;
}
if(p.y > physr->max.y){
d = ((p.y+dy-1)&~(dy-1)) - physr->max.y;
physr->min.y += d;
physr->max.y += d;
}
if(p.x < physr->min.x){
d = physr->min.x - (p.x&~(dx-1));
physr->min.x -= d;
physr->max.x -= d;
}
if(p.x > physr->max.x){
d = ((p.x+dx-1)&~(dx-1)) - physr->max.x;
physr->min.x += d;
physr->max.x += d;
}
return 1;
}
static int
mach64xxcurmove(VGAscr* scr, Point p)
{
int x, xo, y, yo;
int dx;
ulong off, pitch;
/*
* If the point we want to display is outside the current
* screen rectangle, pan the screen to display it.
*
* We have to move in 64-bit chunks.
*/
if(scr->gscreen->depth == 24)
dx = (64*3)/24;
else
dx = 64 / scr->gscreen->depth;
if(panning && screenpan(p, &physgscreenr, dx, 1)){
off = (physgscreenr.min.y*Dx(scr->gscreen->r)+physgscreenr.min.x)/dx;
pitch = Dx(scr->gscreen->r)/8;
iow32(scr, CrtcOffPitch, (pitch<<22)|off);
}
p.x -= physgscreenr.min.x;
p.y -= physgscreenr.min.y;
/*
* Mustn't position the cursor offscreen even partially,
* or it disappears. Therefore, if x or y is -ve, adjust the
* cursor presets instead. If y is negative also have to
* adjust the starting offset.
*/
if((x = p.x+scr->offset.x) < 0){
xo = x;
x = 0;
}
else
xo = 0;
if((y = p.y+scr->offset.y) < 0){
yo = y;
y = 0;
}
else
yo = 0;
iow32(scr, CurHVoff, ((64-16-yo)<<16)|(64-16-xo));
iow32(scr, CurOffset, scr->storage/8 + (-yo*2));
iow32(scr, CurHVposn, (y<<16)|x);
return 0;
}
static void
mach64xxcurenable(VGAscr* scr)
{
ulong r, storage;
mach64xxenable(scr);
if(scr->io == 0)
return;
r = ior32(scr, GenTestCntl);
iow32(scr, GenTestCntl, r & ~0x80);
iow32(scr, CurClr0, (Pwhite<<24)|(Pwhite<<16)|(Pwhite<<8)|Pwhite);
iow32(scr, CurClr1, (Pblack<<24)|(Pblack<<16)|(Pblack<<8)|Pblack);
/*
* Find a place for the cursor data in display memory.
* Must be 64-bit aligned.
*/
storage = (scr->gscreen->width*BY2WD*scr->gscreen->r.max.y+7)/8;
iow32(scr, CurOffset, storage);
scr->storage = storage*8;
/*
* Cursor goes in the top right corner of the 64x64 array
* so the horizontal and vertical presets are 64-16.
*/
iow32(scr, CurHVposn, (0<<16)|0);
iow32(scr, CurHVoff, ((64-16)<<16)|(64-16));
/*
* Load, locate and enable the 64x64 cursor.
*/
mach64xxcurload(scr, &arrow);
mach64xxcurmove(scr, ZP);
iow32(scr, GenTestCntl, 0x80|r);
}
static void
waitforfifo(VGAscr *scr, int entries)
{
int x;
x = 0;
while((ior32(scr, FifoStat)&0xFF) > (0x8000>>entries) && x++ < 1000000)
;
if(x >= 1000000)
iprint("fifo %d stat %.8lux %.8lux scrio %.8lux mmio %p scr %p pc %luX\n", entries, ior32(scr, FifoStat), scr->mmio[mmoffset[FifoStat]], scr->io, scr->mmio, scr, getcallerpc(&scr));
}
static void
waitforidle(VGAscr *scr)
{
int x;
waitforfifo(scr, 16);
x = 0;
while((ior32(scr, GuiStat)&1) && x++ < 1000000)
;
if(x >= 1000000)
iprint("idle stat %.8lux %.8lux scrio %.8lux mmio %p scr %p pc %luX\n", ior32(scr, GuiStat), scr->mmio[mmoffset[GuiStat]], scr->io, scr->mmio, scr, getcallerpc(&scr));
}
static void
resetengine(VGAscr *scr)
{
ulong x;
x = ior32(scr, GenTestCntl);
iow32(scr, GenTestCntl, x&~0x100);
iow32(scr, GenTestCntl, x|0x100);
iow32(scr, BusCntl, ior32(scr, BusCntl)|0x00A00000);
}
static void
init_overlayclock(VGAscr *scr)
{
uchar *cc, save, pll_ref_div, pll_vclk_cntl, vclk_post_div,
vclk_fb_div, ecp_div;
int i;
ulong dotclock;
/* Taken from GLX */
/* Get monitor dotclock, check for Overlay Scaler clock limit */
cc = (uchar *)&scr->mmio[mmoffset[ClockCntl]];
save = cc[1]; i = cc[0] & 3;
cc[1] = 2<<2; pll_ref_div = cc[2];
cc[1] = 5<<2; pll_vclk_cntl = cc[2];
cc[1] = 6<<2; vclk_post_div = (cc[2]>>(i+i)) & 3;
cc[1] = (7+i)<<2; vclk_fb_div = cc[2];
dotclock = 2 * mach64refclock * vclk_fb_div /
(pll_ref_div * (1 << vclk_post_div));
/* ecp_div: 0=dotclock, 1=dotclock/2, 2=dotclock/4 */
ecp_div = dotclock / mach64type->m64_ovlclock;
if (ecp_div>2) ecp_div = 2;
/* Force a scaler clock factor of 1 if refclock *
* is unknown (VCLK_SRC not PLLVCLK) */
if ((pll_vclk_cntl & 0x03) != 0x03)
ecp_div = 0;
if ((pll_vclk_cntl & 0x30) != ecp_div<<4) {
cc[1] = (5<<2)|2;
cc[2] = (pll_vclk_cntl&0xCF) | (ecp_div<<4);
}
/* Restore PLL Register Index */
cc[1] = save;
}
static void
initengine(VGAscr *scr)
{
ulong pitch;
uchar *bios;
ushort table;
pitch = Dx(scr->gscreen->r)/8;
if(scr->gscreen->depth == 24)
pitch *= 3;
resetengine(scr);
waitforfifo(scr, 14);
iow32(scr, ContextMask, ~0);
iow32(scr, DstOffPitch, pitch<<22);
iow32(scr, DstYX, 0);
iow32(scr, DstHeight, 0);
iow32(scr, DstBresErr, 0);
iow32(scr, DstBresInc, 0);
iow32(scr, DstBresDec, 0);
iow32(scr, DstCntl, 0x23);
iow32(scr, SrcOffPitch, pitch<<22);
iow32(scr, SrcYX, 0);
iow32(scr, SrcHeight1Width1, 1);
iow32(scr, SrcYXstart, 0);
iow32(scr, SrcHeight2Width2, 1);
iow32(scr, SrcCntl, 0x01);
waitforfifo(scr, 13);
iow32(scr, HostCntl, 0);
iow32(scr, PatReg0, 0);
iow32(scr, PatReg1, 0);
iow32(scr, PatCntl, 0);
iow32(scr, ScLeft, 0);
iow32(scr, ScTop, 0);
iow32(scr, ScBottom, 0xFFFF);
iow32(scr, ScRight, 0xFFFF);
iow32(scr, DpBkgdClr, 0);
iow32(scr, DpFrgdClr, ~0);
iow32(scr, DpWriteMask, ~0);
iow32(scr, DpMix, 0x70003);
iow32(scr, DpSrc, 0x00010100);
waitforfifo(scr, 3);
iow32(scr, ClrCmpClr, 0);
iow32(scr, ClrCmpMask, ~0);
iow32(scr, ClrCmpCntl, 0);
waitforfifo(scr, 2);
switch(scr->gscreen->depth){
case 8:
case 24: /* [sic] */
iow32(scr, DpPixWidth, 0x00020202);
iow32(scr, DpChainMask, 0x8080);
break;
case 16:
iow32(scr, DpPixWidth, 0x00040404);
iow32(scr, DpChainMask, 0x8410);
break;
case 32:
iow32(scr, DpPixWidth, 0x00060606);
iow32(scr, DpChainMask, 0x8080);
break;
}
/* Get the base freq from the BIOS */
bios = KADDR(0xC000);
table = *(ushort *)(bios + 0x48);
table = *(ushort *)(bios + table + 0x10);
switch (*(ushort *)(bios + table + 0x08)) {
case 2700:
mach64refclock = 270000;
break;
case 2863:
case 2864:
mach64refclock = 286363;
break;
case 2950:
mach64refclock = 294989;
break;
case 1432:
default:
mach64refclock = 143181;
break ;
}
/* Figure out which revision this chip is */
switch ((scr->mmio[mmoffset[ConfigChipId]] >> 24) & 0xFF) {
case VTGTB1S1:
case GTB1U1:
case GTB1S2:
case GTB2U1:
case GTB2U2:
case GTB2U3:
case GTBC:
case GTIIIC1U1:
case GTIIIC1U2:
case GTIIIC2U1:
case GTIIIC2U2:
case GTIIIC2U3:
case LTPRO:
mach64revb = 1;
break;
default:
mach64revb = 0;
break;
}
waitforidle(scr);
}
static int
mach64hwfill(VGAscr *scr, Rectangle r, ulong sval)
{
ulong pitch;
ulong ctl;
if(drawdebug)
iprint("hwfill %R val %lux...\n", r, sval);
/* shouldn't happen */
if(scr->io == 0x2EC || scr->io == 0x1C8 || scr->io == 0)
return 0;
pitch = Dx(scr->gscreen->r)/8;
ctl = 1|2; /* left-to-right, top-to-bottom */
if(scr->gscreen->depth == 24){
r.min.x *= 3;
r.max.x *= 3;
pitch *= 3;
ctl |= (1<<7)|(((r.min.x/4)%6)<<8);
}
waitforfifo(scr, 11);
iow32(scr, DpFrgdClr, sval);
iow32(scr, DpWriteMask, 0xFFFFFFFF);
iow32(scr, DpMix, 0x00070003);
iow32(scr, DpSrc, 0x00000111);
iow32(scr, ClrCmpCntl, 0x00000000);
iow32(scr, ScLeftRight, 0x1FFF0000);
iow32(scr, ScTopBottom, 0x1FFF0000);
iow32(scr, DstOffPitch, pitch<<22);
iow32(scr, DstCntl, ctl);
iow32(scr, DstYX, (r.min.x<<16)|r.min.y);
iow32(scr, DstHeightWidth, (Dx(r)<<16)|Dy(r));
waitforidle(scr);
return 1;
}
static int
mach64hwscroll(VGAscr *scr, Rectangle r, Rectangle sr)
{
ulong pitch;
Point dp, sp;
ulong ctl;
int dx, dy;
dx = Dx(r);
dy = Dy(r);
pitch = Dx(scr->gscreen->r)/8;
if(scr->gscreen->depth == 24){
dx *= 3;
pitch *= 3;
r.min.x *= 3;
sr.min.x *= 3;
}
ctl = 0;
if(r.min.x <= sr.min.x){
ctl |= 1;
dp.x = r.min.x;
sp.x = sr.min.x;
}else{
dp.x = r.min.x+dx-1;
sp.x = sr.min.x+dx-1;
}
if(r.min.y <= sr.min.y){
ctl |= 2;
dp.y = r.min.y;
sp.y = sr.min.y;
}else{
dp.y = r.min.y+dy-1;
sp.y = sr.min.y+dy-1;
}
if(scr->gscreen->depth == 24)
ctl |= (1<<7)|(((dp.x/4)%6)<<8);
waitforfifo(scr, 6);
iow32(scr, ScLeftRight, 0x1FFF0000);
iow32(scr, ScTopBottom, 0x1FFF0000);
iow32(scr, DpWriteMask, 0xFFFFFFFF);
iow32(scr, DpMix, 0x00070003);
iow32(scr, DpSrc, 0x00000300);
iow32(scr, ClrCmpCntl, 0x00000000);
waitforfifo(scr, 8);
iow32(scr, SrcOffPitch, pitch<<22);
iow32(scr, SrcCntl, 0x00000000);
iow32(scr, SrcYX, (sp.x<<16)|sp.y);
iow32(scr, SrcWidth1, dx);
iow32(scr, DstOffPitch, pitch<<22);
iow32(scr, DstCntl, ctl);
iow32(scr, DstYX, (dp.x<<16)|dp.y);
iow32(scr, DstHeightWidth, (dx<<16)|dy);
waitforidle(scr);
return 1;
}
/*
* This should work, but doesn't.
* It messes up the screen timings for some reason.
*/
static void
mach64blank(VGAscr *scr, int blank)
{
ulong ctl;
ctl = ior32(scr, CrtcGenCtl) & ~(CrtcHsyncDis|CrtcVsyncDis);
if(blank)
ctl |= CrtcHsyncDis|CrtcVsyncDis;
iow32(scr, CrtcGenCtl, ctl);
}
/*
* We squirrel away whether the LCD and/or CRT were
* on when we were called to blank the screen, and
* restore the old state. If we are called to blank the
* screen when it is already blank, we don't update the state.
* Such a call sequence should not happen, though.
*
* We could try forcing the chip into power management
* mode instead, but I'm not sure how that would interact
* with screen updates going on while the screen is blanked.
*/
static void
mach64lcdblank(VGAscr *scr, int blank)
{
static int crtlcd;
ulong x;
if(blank) {
x = lcdr32(scr, LCD_GenCtrl);
if(x & 3) {
crtlcd = x & 3;
lcdw32(scr, LCD_GenCtrl, x&~3);
}
} else {
if(crtlcd == 0)
crtlcd = 2; /* lcd only */
x = lcdr32(scr, LCD_GenCtrl);
lcdw32(scr, LCD_GenCtrl, x | crtlcd);
}
}
static void
mach64xxdrawinit(VGAscr *scr)
{
if(scr->io > 0x2FF){
initengine(scr);
scr->fill = mach64hwfill;
scr->scroll = mach64hwscroll;
}
/* scr->blank = mach64blank; */
switch(scr->id){
default:
break;
case ('L'<<8)|'B': /* 4C42: Rage 3D LTPro */
case ('L'<<8)|'I': /* 4C49: Rage 3D LTPro */
case ('L'<<8)|'M': /* 4C4D: Rage Mobility */
case ('L'<<8)|'P': /* 4C50: Rage 3D LTPro */
scr->blank = mach64lcdblank;
hwblank = 1;
break;
}
}
static void
ovl_configure(VGAscr *scr, Chan *c, char **field)
{
int w, h;
char *format;
w = (int)strtol(field[1], nil, 0);
h = (int)strtol(field[2], nil, 0);
format = field[3];
if (c != ovl_chan)
error(Einuse);
if (strcmp(format, "YUYV"))
error(Eunsupportedformat);
ovl_width = w;
ovl_height = h;
ovl_fib = w * h * sizeof(ushort);
waitforidle(scr);
scr->mmio[mmoffset[BusCntl]] |= 0x08000000; /* Enable regblock 1 */
scr->mmio[mmoffset[OverlayScaleCntl]] =
SCALE_ZERO_EXTEND|SCALE_RED_TEMP_6500K|
SCALE_HORZ_BLEND|SCALE_VERT_BLEND;
scr->mmio[mmoffset[!mach64revb? Buf0Pitch: ScalerBuf0Pitch]] = w;
scr->mmio[mmoffset[CaptureConfig]] =
SCALER_FRAME_READ_MODE_FULL|
SCALER_BUF_MODE_SINGLE|
SCALER_BUF_NEXT_0;
scr->mmio[mmoffset[OverlayKeyCntl]] = !mach64revb?
OVERLAY_MIX_ALWAYS_V|(OVERLAY_EXCLUSIVE_NORMAL << 28):
0x011;
if (mach64type->m64_pro) {
waitforfifo(scr, 6);
/* set the scaler co-efficient registers */
scr->mmio[mmoffset[ScalerColourCntl]] =
(0x00) | (0x10 << 8) | (0x10 << 16);
scr->mmio[mmoffset[ScalerHCoef0]] =
(0x00) | (0x20 << 8);
scr->mmio[mmoffset[ScalerHCoef1]] =
(0x0D) | (0x20 << 8) | (0x06 << 16) | (0x0D << 24);
scr->mmio[mmoffset[ScalerHCoef2]] =
(0x0D) | (0x1C << 8) | (0x0A << 16) | (0x0D << 24);
scr->mmio[mmoffset[ScalerHCoef3]] =
(0x0C) | (0x1A << 8) | (0x0E << 16) | (0x0C << 24);
scr->mmio[mmoffset[ScalerHCoef4]] =
(0x0C) | (0x14 << 8) | (0x14 << 16) | (0x0C << 24);
}
waitforfifo(scr, 3);
scr->mmio[mmoffset[VideoFormat]] = SCALE_IN_YVYU422 |
(!mach64revb? 0xC: 0);
if (mach64overlay == 0)
mach64overlay = scr->storage + 64 * 64 * sizeof(uchar);
scr->mmio[mmoffset[!mach64revb? Buf0Offset: ScalerBuf0Offset]] =
mach64overlay;
}
static void
ovl_enable(VGAscr *scr, Chan *c, char **field)
{
int x, y, w, h;
long h_inc, v_inc;
x = (int)strtol(field[1], nil, 0);
y = (int)strtol(field[2], nil, 0);
w = (int)strtol(field[3], nil, 0);
h = (int)strtol(field[4], nil, 0);
if (x < 0 || x + w > physgscreenr.max.x ||
y < 0 || y + h > physgscreenr.max.y)
error(Ebadarg);
if (c != ovl_chan)
error(Einuse);
if (scr->mmio[mmoffset[CrtcGenCntl]] & 1) { /* double scan enable */
y *= 2;
h *= 2;
}
waitforfifo(scr, 2);
scr->mmio[mmoffset[OverlayYX]] =
((x & 0xFFFF) << 16) | (y & 0xFFFF);
scr->mmio[mmoffset[OverlayYXEnd]] =
(((x + w) & 0xFFFF) << 16) | ((y + h) & 0xFFFF);
h_inc = (ovl_width << 12) / (w >> 1); /* ??? */
v_inc = (ovl_height << 12) / h;
waitforfifo(scr, 2);
scr->mmio[mmoffset[OverlayScaleInc]] =
((h_inc & 0xFFFF) << 16) | (v_inc & 0xFFFF);
scr->mmio[mmoffset[ScalerHeightWidth]] =
((ovl_width & 0xFFFF) << 16) | (ovl_height & 0xFFFF);
waitforidle(scr);
scr->mmio[mmoffset[OverlayScaleCntl]] |=
(SCALE_ENABLE|OVERLAY_ENABLE);
}
static void
ovl_status(VGAscr *scr, Chan *, char **field)
{
pprint("%s: %s %.4uX, VT/GT %s, PRO %s, ovlclock %d, rev B %s, refclock %ld\n",
scr->dev->name, field[0], mach64type->m64_id,
mach64type->m64_vtgt? "yes": "no",
mach64type->m64_pro? "yes": "no",
mach64type->m64_ovlclock,
mach64revb? "yes": "no",
mach64refclock);
pprint("%s: storage @%.8luX, aperture @%8.ulX, ovl buf @%.8ulX\n",
scr->dev->name, scr->storage, scr->aperture,
mach64overlay);
}
static void
ovl_openctl(VGAscr *, Chan *c, char **)
{
if (ovl_chan)
error(Einuse);
ovl_chan = c;
}
static void
ovl_closectl(VGAscr *scr, Chan *c, char **)
{
if (c != ovl_chan) return;
waitforidle(scr);
scr->mmio[mmoffset[OverlayScaleCntl]] &=
~(SCALE_ENABLE|OVERLAY_ENABLE);
ovl_chan = nil;
ovl_width = ovl_height = ovl_fib = 0;
}
enum
{
CMclosectl,
CMconfigure,
CMenable,
CMopenctl,
CMstatus,
};
static void (*ovl_cmds[])(VGAscr *, Chan *, char **) =
{
[CMclosectl] ovl_closectl,
[CMconfigure] ovl_configure,
[CMenable] ovl_enable,
[CMopenctl] ovl_openctl,
[CMstatus] ovl_status,
};
static Cmdtab mach64xxcmd[] =
{
CMclosectl, "closectl", 1,
CMconfigure, "configure", 4,
CMenable, "enable", 5,
CMopenctl, "openctl", 1,
CMstatus, "status", 1,
};
static void
mach64xxovlctl(VGAscr *scr, Chan *c, void *a, int n)
{
Cmdbuf *cb;
Cmdtab *ct;
if(!mach64type->m64_vtgt)
error(Enodev);
if(!scr->overlayinit){
scr->overlayinit = 1;
init_overlayclock(scr);
}
cb = parsecmd(a, n);
if(waserror()){
free(cb);
nexterror();
}
ct = lookupcmd(cb, mach64xxcmd, nelem(mach64xxcmd));
ovl_cmds[ct->index](scr, c, cb->f);
poperror();
free(cb);
}
static int
mach64xxovlwrite(VGAscr *scr, void *a, int len, vlong offs)
{
uchar *src;
int _len;
if (ovl_chan == nil) return len; /* Acts as a /dev/null */
/* Calculate the destination address */
_len = len;
src = (uchar *)a;
while (len > 0) {
ulong _offs;
int nb;
_offs = (ulong)(offs % ovl_fib);
nb = (_offs + len > ovl_fib)? ovl_fib - _offs: len;
memmove((uchar *)KADDR(scr->aperture + mach64overlay + _offs),
src, nb);
offs += nb;
src += nb;
len -= nb;
}
return _len;
}
VGAdev vgamach64xxdev = {
"mach64xx",
mach64xxenable, /* enable */
0, /* disable */
0, /* page */
mach64xxlinear, /* linear */
mach64xxdrawinit, /* drawinit */
0,
mach64xxovlctl, /* overlay control */
mach64xxovlwrite, /* write the overlay */
};
VGAcur vgamach64xxcur = {
"mach64xxhwgc",
mach64xxcurenable, /* enable */
mach64xxcurdisable, /* disable */
mach64xxcurload, /* load */
mach64xxcurmove, /* move */
1 /* doespanning */
};