#if defined(JAZZ)
/*++
Copyright (c) 1989 Microsoft Corporation
Module Name:
jzvxl484.c
cAbstract:
This module implements the video prom code for the Jazz VXL BT484
Author:
Lluis Abello (lluis) 28-May-1992
Environment:
Kernel mode.
Revision History:
--*/
#include "fwp.h"
#include "jzvxl484.h"
#include "jxvideo.h"
#include "jaginit.h"
#define KeFlushWriteBuffer()
ARC_STATUS
InitializeBt484(
IN PVIDEO_VIRTUAL_SPACE VirtualAdr
);
VOID
FillVideoMemory(
IN ULONG StartAddress,
IN ULONG Size,
IN ULONG Pattern
);
ULONG
CheckVideoMemoryAddressTest(
IN ULONG StartAddress,
IN ULONG Size
);
VOID
WriteVideoMemoryAddressTest(
IN ULONG StartAddress,
IN ULONG Size
);
//
// Define colors, HI = High Intensity
//
#define BT484_PALETTE_BLACK_R 0x00
#define BT484_PALETTE_BLACK_G 0x00
#define BT484_PALETTE_BLACK_B 0x00
#define BT484_PALETTE_RED_R 0xB0
#define BT484_PALETTE_RED_G 0x00
#define BT484_PALETTE_RED_B 0x00
#define BT484_PALETTE_GREEN_R 0x00
#define BT484_PALETTE_GREEN_B 0xB0
#define BT484_PALETTE_GREEN_G 0x00
#define BT484_PALETTE_YELLOW_R 0xB0
#define BT484_PALETTE_YELLOW_G 0xB0
#define BT484_PALETTE_YELLOW_B 0x00
#define BT484_PALETTE_BLUE_R 0x00
#define BT484_PALETTE_BLUE_G 0x00
#define BT484_PALETTE_BLUE_B 0xB0
#define BT484_PALETTE_MAGENTA_R 0xB0
#define BT484_PALETTE_MAGENTA_G 0x00
#define BT484_PALETTE_MAGENTA_B 0xB0
#define BT484_PALETTE_CYAN_R 0x00
#define BT484_PALETTE_CYAN_G 0xB0
#define BT484_PALETTE_CYAN_B 0xB0
#define BT484_PALETTE_WHITE_R 0xB0
#define BT484_PALETTE_WHITE_G 0xB0
#define BT484_PALETTE_WHITE_B 0xB0
#define BT484_PALETTE_HI_BLACK_R 0x00
#define BT484_PALETTE_HI_BLACK_G 0x00
#define BT484_PALETTE_HI_BLACK_B 0x00
#define BT484_PALETTE_HI_RED_R 0xFF
#define BT484_PALETTE_HI_RED_G 0x00
#define BT484_PALETTE_HI_RED_B 0x00
#define BT484_PALETTE_HI_GREEN_R 0x00
#define BT484_PALETTE_HI_GREEN_G 0xFF
#define BT484_PALETTE_HI_GREEN_B 0x00
#define BT484_PALETTE_HI_YELLOW_R 0xFF
#define BT484_PALETTE_HI_YELLOW_G 0xFF
#define BT484_PALETTE_HI_YELLOW_B 0x00
#define BT484_PALETTE_HI_BLUE_R 0x00
#define BT484_PALETTE_HI_BLUE_G 0x00
#define BT484_PALETTE_HI_BLUE_B 0xFF
#define BT484_PALETTE_HI_MAGENTA_R 0xFF
#define BT484_PALETTE_HI_MAGENTA_G 0x00
#define BT484_PALETTE_HI_MAGENTA_B 0xFF
#define BT484_PALETTE_HI_CYAN_R 0x00
#define BT484_PALETTE_HI_CYAN_G 0xFF
#define BT484_PALETTE_HI_CYAN_B 0xFF
#define BT484_PALETTE_HI_WHITE_R 0xFF
#define BT484_PALETTE_HI_WHITE_G 0xFF
#define BT484_PALETTE_HI_WHITE_B 0xFF
UCHAR ColorTable[16*3]={
BT484_PALETTE_BLACK_R,
BT484_PALETTE_BLACK_G,
BT484_PALETTE_BLACK_B,
BT484_PALETTE_RED_R,
BT484_PALETTE_RED_G,
BT484_PALETTE_RED_B,
BT484_PALETTE_GREEN_R,
BT484_PALETTE_GREEN_B,
BT484_PALETTE_GREEN_G,
BT484_PALETTE_YELLOW_R,
BT484_PALETTE_YELLOW_G,
BT484_PALETTE_YELLOW_B,
BT484_PALETTE_BLUE_R,
BT484_PALETTE_BLUE_G,
BT484_PALETTE_BLUE_B,
BT484_PALETTE_MAGENTA_R,
BT484_PALETTE_MAGENTA_G,
BT484_PALETTE_MAGENTA_B,
BT484_PALETTE_CYAN_R,
BT484_PALETTE_CYAN_G,
BT484_PALETTE_CYAN_B,
BT484_PALETTE_WHITE_R,
BT484_PALETTE_WHITE_G,
BT484_PALETTE_WHITE_B,
BT484_PALETTE_HI_BLACK_R,
BT484_PALETTE_HI_BLACK_G,
BT484_PALETTE_HI_BLACK_B,
BT484_PALETTE_HI_RED_R,
BT484_PALETTE_HI_RED_G,
BT484_PALETTE_HI_RED_B,
BT484_PALETTE_HI_GREEN_R,
BT484_PALETTE_HI_GREEN_G,
BT484_PALETTE_HI_GREEN_B,
BT484_PALETTE_HI_YELLOW_R,
BT484_PALETTE_HI_YELLOW_G,
BT484_PALETTE_HI_YELLOW_B,
BT484_PALETTE_HI_BLUE_R,
BT484_PALETTE_HI_BLUE_G,
BT484_PALETTE_HI_BLUE_B,
BT484_PALETTE_HI_MAGENTA_R,
BT484_PALETTE_HI_MAGENTA_G,
BT484_PALETTE_HI_MAGENTA_B,
BT484_PALETTE_HI_CYAN_R,
BT484_PALETTE_HI_CYAN_G,
BT484_PALETTE_HI_CYAN_B,
BT484_PALETTE_HI_WHITE_R,
BT484_PALETTE_HI_WHITE_G,
BT484_PALETTE_HI_WHITE_B
};
//
// Define colors, HI = High Intensity
//
#define FW_COLOR_BLACK 0x00
#define FW_COLOR_RED 0x01
#define FW_COLOR_GREEN 0x02
#define FW_COLOR_YELLOW 0x03
#define FW_COLOR_BLUE 0x04
#define FW_COLOR_MAGENTA 0x05
#define FW_COLOR_CYAN 0x06
#define FW_COLOR_WHITE 0x07
#define FW_COLOR_HI_BLACK 0x08
#define FW_COLOR_HI_RED 0x09
#define FW_COLOR_HI_GREEN 0x0A
#define FW_COLOR_HI_YELLOW 0x0B
#define FW_COLOR_HI_BLUE 0x0C
#define FW_COLOR_HI_MAGENTA 0x0D
#define FW_COLOR_HI_CYAN 0x0E
#define FW_COLOR_HI_WHITE 0x0F
ARC_STATUS
InitializeVXL (
IN PVIDEO_VIRTUAL_SPACE VirtualAdr,
IN PMONITOR_CONFIGURATION_DATA Monitor
)
/*++
Routine Description:
This routine initializes the JazzVxl Graphics accelerator.
Arguments:
Monitor - Monitor configuration data.
VirtualAdr - Pointer to a pair of virtual addresses for video&Control spaces.
Return Value:
If the video was initialized, ESUCCESS is returned, otherwise an error
code is returned.
--*/
{
ULONG Index;
PJAGUAR_REGISTERS Jaguar = (PJAGUAR_REGISTERS)(VirtualAdr->ControlVirtualBase + VXL_JAGUAR_BASE_OFFSET);
PBT484_REGISTERS Bt484 = (PBT484_REGISTERS)(VirtualAdr->ControlVirtualBase + VXL_BT484_BASE_OFFSET);
PUCHAR Clock = (PUCHAR)(VirtualAdr->ControlVirtualBase + VXL_CLOCK_BASE_OFFSET);
UCHAR DataChar;
UCHAR CmdReg0;
ULONG VideoMemory = VirtualAdr->MemoryVirtualBase;
JAGUAR_REG_INIT JagInitData;
ULONG Status;
//
// Define clock value for the ICS part (pS)
//
ULONG ClockResList[32] = { 4, 4, 4, 4, 4, 4, 4, 4,
4, 4,42918,40984,38760,36724,33523,31017,
29197,27548,24882,23491,22482,21468,20509,19920,
18692,18054,16722,15015,14773,14053,13040, 4};
//
// Define a default jaguar init and monitor config for
// use when a BOGUS init value is sent.
//
JAGUAR_REG_INIT JagDefaultData = {
0xc, // Clock Selector
0, // Bt485 clock 2x multiply
1, // BitBlt Control
0, // TopOfScreen
41, // Horizontal Blank
4, // Horizontal Begin Sync
29, // Horizontal End Sync
201, // Horizontal Total
45, // Vertical Blank
11, // Vertical Begin Sync
13, // Vertical End Sync
525, // Vertical Total
0x200, // XFER LENGTH
4, // Vertival Interrupt Line
640 // Screen X
};
MONITOR_CONFIGURATION_DATA DefaultMonitor = {
0, // version :do not change
0, // revision :do not change
640, // HorizontalResolution
25422, // HorizontalDisplayTime
636, // HorizontalBackPorch
1907, // HorizontalFrontPorch
3813, // HorizontalSync
480, // VerticalResolution
33, // VerticalBackPorch
10, // VerticalFrontPorch
2, // VerticalSync
0, // HorizontalScreenSize : do not change
0 // VerticalScreenSize : do not change
};
LONG HorDisplayTime;
LONG HorResolutionDiv;
LONG ReqClockPeriod;
LONG CurrentClockError;
LONG MinErrorValue;
USHORT MinErrorIndex;
LONG ShiftClockPeriod;
USHORT BoardTypeBt485;
//
// Test the first bank of video memory
//
WriteVideoMemoryAddressTest(VideoMemory,
0x200000
);
Status = CheckVideoMemoryAddressTest(VideoMemory,
0x200000
);
if (Status != 0) {
return EINVAL;
}
//
// Determine if this is a Bt484 or Bt485 board. To do this write a 1 to command
// register bit 07 then write 01 to the address register 0. This will enable
// read/writes to command register 3 on a Bt485 but not on a Bt484. Clear
// Command register 3 then read it back. On a Bt485 the return value will be 0x00,
// on a Bt484 it will be 0x40.
//
//
// Get the value in command register 0, then set bit 07
//
DataChar = READ_REGISTER_UCHAR(&Bt484->Command0.Byte);
DataChar |= 0x80;
WRITE_REGISTER_UCHAR(&Bt484->Command0.Byte,DataChar);
//
// Write 0x01 to the address register
//
WRITE_REGISTER_UCHAR(&Bt484->PaletteCursorWrAddress.Byte,0x01);
//
// Clear command register 3
//
WRITE_REGISTER_UCHAR(&Bt484->Status.Byte,0x00);
//
// Read Command Register 3 back and compare
//
DataChar = READ_REGISTER_UCHAR(&Bt484->Status.Byte);
if (DataChar != 0x00) {
//
// This is a Bt484
//
BoardTypeBt485 = 0;
JagInitData.Bt485Multiply = 0;
} else {
//
// This is a Bt485
//
BoardTypeBt485 = 1;
JagInitData.Bt485Multiply = 0;
}
//
// Calculate the requested clock frequency then find the closest match in the
// ICS clock frequency table. The requested clock frequency in picoseconds =
//
// Horizontal display time * 1000
// ------------------------------
// horizontal resolution
//
//
HorDisplayTime = Monitor->HorizontalDisplayTime * 1000;
HorResolutionDiv = Monitor->HorizontalResolution;
ReqClockPeriod = HorDisplayTime / HorResolutionDiv;
//
// Check for a configuration needing a Bt485 and a board that is a 484. In
// This case we will have to resort to a default 640 x 480 config
//
if ((BoardTypeBt485 == 0) & (ReqClockPeriod < ClockResList[30])) {
//
// We were told to display a mode that we don't support, set
// the output to the default mode and also return the monitor
// info to a default mode which will later be stored into
// NVRAM so that the HAL will init ok and also the next ROM init
// will be correct.
//
JagInitData = JagDefaultData;
Monitor->HorizontalResolution = DefaultMonitor.HorizontalResolution;
Monitor->HorizontalDisplayTime = DefaultMonitor.HorizontalDisplayTime;
Monitor->HorizontalBackPorch = DefaultMonitor.HorizontalBackPorch;
Monitor->HorizontalFrontPorch = DefaultMonitor.HorizontalFrontPorch;
Monitor->HorizontalSync = DefaultMonitor.HorizontalSync;
Monitor->VerticalResolution = DefaultMonitor.VerticalResolution;
Monitor->VerticalBackPorch = DefaultMonitor.VerticalBackPorch;
Monitor->VerticalFrontPorch = DefaultMonitor.VerticalFrontPorch;
Monitor->VerticalSync = DefaultMonitor.VerticalSync;
} else {
//
// Check for a Bt485 frequency
//
if ((BoardTypeBt485 == 1) & (ReqClockPeriod < ClockResList[30])) {
ReqClockPeriod = ReqClockPeriod * 2;
JagInitData.Bt485Multiply = 1;
}
MinErrorIndex = 0;
//
// Gaurentee a maximum starting error
//
MinErrorValue = ReqClockPeriod + 1;
for (Index=0;Index<32;Index++) {
//
// Calculate the absolute value of clock error and find the
// closest match in the array of clock values
//
CurrentClockError = ReqClockPeriod - ClockResList[Index];
if (CurrentClockError < 0) {
CurrentClockError *= -1;
}
if (CurrentClockError < MinErrorValue) {
MinErrorValue = CurrentClockError;
MinErrorIndex = Index;
}
}
//
// We now have a closest match in the clock array, now calculate the
// values for the Bt484/Bt485 register values
//
JagInitData.ClockFreq = MinErrorIndex;
JagInitData.BitBltControl = 1;
JagInitData.TopOfScreen = 0;
JagInitData.XferLength = 0x200;
JagInitData.VerticalInterruptLine = 4;
JagInitData.HorizontalDisplay = Monitor->HorizontalResolution;
//
// All jaguar timing values are based on the brooktree shift clock value which
// is the clock frequency divided by 4. (period * 4) If this is a Bt485 using
// its internal 2x clock multiplier than is is period * 2; (freq * 2 / 4)
//
if (JagInitData.Bt485Multiply == 1) {
ShiftClockPeriod = ClockResList[MinErrorIndex] * 2;
} else {
ShiftClockPeriod = ClockResList[MinErrorIndex] * 4;
}
JagInitData.HorizontalBlank = ((Monitor->HorizontalBackPorch +
Monitor->HorizontalSync +
Monitor->HorizontalFrontPorch) * 1000)
/ ShiftClockPeriod;
JagInitData.HorizontalBeginSync = (Monitor->HorizontalFrontPorch * 1000)
/ ShiftClockPeriod;
JagInitData.HorizontalEndSync = ((Monitor->HorizontalSync +
Monitor->HorizontalFrontPorch) * 1000)
/ ShiftClockPeriod;
JagInitData.HorizontalLine = JagInitData.HorizontalBlank +
(Monitor->HorizontalResolution / 4);
JagInitData.VerticalBlank = Monitor->VerticalBackPorch +
Monitor->VerticalSync +
Monitor->VerticalFrontPorch;
JagInitData.VerticalBeginSync = Monitor->VerticalFrontPorch;
JagInitData.VerticalEndSync = Monitor->VerticalFrontPorch +
Monitor->VerticalSync;
JagInitData.VerticalLine = Monitor->VerticalBackPorch +
Monitor->VerticalSync +
Monitor->VerticalFrontPorch +
Monitor->VerticalResolution;
}
//
// Start ICS Clock pll and stabilize.
//
WRITE_REGISTER_UCHAR(Clock,JagInitData.ClockFreq);
//
// Wait 10 uS for PLL clock to stabilize on the video board
//
for (Index=0;Index<10;Index++) {
READ_REGISTER_UCHAR(Clock);
}
//
// Initialize Bt484 Command Register 0 to:
//
// 8 Bit DAC Resolution
//
CmdReg0 = 0;
((PBT484_COMMAND0)(&CmdReg0))->DacResolution = 1;
((PBT484_COMMAND0)(&CmdReg0))->GreenSyncEnable = 1;
((PBT484_COMMAND0)(&CmdReg0))->SetupEnable = 1;
WRITE_REGISTER_UCHAR(&Bt484->Command0.Byte,CmdReg0);
//
// Initialize Command Register 1 to:
//
DataChar = 0;
((PBT484_COMMAND1)(&DataChar))->BitsPerPixel = VXL_EIGHT_BITS_PER_PIXEL;
WRITE_REGISTER_UCHAR(&Bt484->Command1.Byte,DataChar);
//
// Initialize Command Register 2 to:
//
// SCLK Enabled
// TestMode disabled
// PortselMask Non Masked
// PCLK 1
// NonInterlaced
//
DataChar = 0;
((PBT484_COMMAND2)(&DataChar))->SclkDisable = 0;
((PBT484_COMMAND2)(&DataChar))->TestEnable = 0;
((PBT484_COMMAND2)(&DataChar))->PortselMask = 1;
((PBT484_COMMAND2)(&DataChar))->PclkSelect = 1;
((PBT484_COMMAND2)(&DataChar))->InterlacedDisplay = 0;
((PBT484_COMMAND2)(&DataChar))->PaletteIndexing = CONTIGUOUS_PALETTE;
((PBT484_COMMAND2)(&DataChar))->CursorMode = BT_CURSOR_WINDOWS;
WRITE_REGISTER_UCHAR(&Bt484->Command2.Byte,DataChar);
//
// if JagInitData.ClockFreq bit 8 is set then this is a Bt485 mode that requires
// the internal 2x clock multiplier to be enabled.
//
if (JagInitData.Bt485Multiply == 1) {
//
// To access cmd register 3, first set bit CR17 in command register 0
//
CmdReg0 |= 0x80;
WRITE_REGISTER_UCHAR(&Bt484->Command0.Byte,CmdReg0);
//
// Write a 0x01 to Address register
//
WRITE_REGISTER_UCHAR(&Bt484->PaletteCursorWrAddress.Byte,0x01);
//
// Write to cmd register 3 in the status register location. Cmd3 is initialized
// to turn on the 2x clock multiplier.
//
DataChar = 0;
((PBT484_COMMAND3)(&DataChar))->ClockMultiplier = 1;
WRITE_REGISTER_UCHAR(&Bt484->Status.Byte,DataChar);
//
// Allow 10 uS for the 2x multiplier to stabilize
//
for (Index=0;Index<10;Index++) {
READ_REGISTER_UCHAR(Clock);
}
}
//
// Initialize Color Palette.
//
// Set address pointer to base of color palette.
// Initialize first 16 entries from color table.
// Zero remaining entries.
//
WRITE_REGISTER_UCHAR(&Bt484->PaletteCursorWrAddress.Byte,0);
for (Index=0;Index<16*3;Index++) {
WRITE_REGISTER_UCHAR(&Bt484->PaletteColor.Byte,ColorTable[Index]);
}
for (;Index<256*3;Index++) {
WRITE_REGISTER_UCHAR(&Bt484->PaletteColor.Byte,0);
}
//
// Initialize Cursor and Overscan color.
//
// Set address pointer base.
// Zero 4 entries.
//
WRITE_REGISTER_UCHAR(&Bt484->CursorColorWrAddress.Byte,0);
for (Index=0;Index<4*3;Index++) {
WRITE_REGISTER_UCHAR(&Bt484->CursorColor.Byte,0);
}
//
// Initialize cursor RAM
//
// Set address pointer to base of ram.
// Clear both planes
//
WRITE_REGISTER_UCHAR(&Bt484->PaletteCursorWrAddress.Byte,0);
for (Index=0;Index<256;Index++) {
WRITE_REGISTER_UCHAR(&Bt484->CursorRam.Byte,0);
}
//
// Initialize cursor position registers--cursor off.
//
WRITE_REGISTER_UCHAR(&Bt484->CursorXLow.Byte,0);
WRITE_REGISTER_UCHAR(&Bt484->CursorXHigh.Byte,0);
WRITE_REGISTER_UCHAR(&Bt484->CursorYLow.Byte,0);
WRITE_REGISTER_UCHAR(&Bt484->CursorYHigh.Byte,0);
//
// Initialize pixel mask.
//
WRITE_REGISTER_UCHAR(&Bt484->PixelMask.Byte,0xFF);
//
// Init Jaguar Registers
//
WRITE_REGISTER_USHORT(&Jaguar->TopOfScreen.Short,
JagInitData.TopOfScreen);
WRITE_REGISTER_USHORT(&Jaguar->HorizontalBlank.Short,
JagInitData.HorizontalBlank);
WRITE_REGISTER_USHORT(&Jaguar->HorizontalBeginSync.Short,
JagInitData.HorizontalBeginSync);
WRITE_REGISTER_USHORT(&Jaguar->HorizontalEndSync.Short,
JagInitData.HorizontalEndSync);
WRITE_REGISTER_USHORT(&Jaguar->HorizontalLine.Short,
JagInitData.HorizontalLine);
WRITE_REGISTER_USHORT(&Jaguar->VerticalBlank.Short,
JagInitData.VerticalBlank);
WRITE_REGISTER_USHORT(&Jaguar->VerticalBeginSync.Short,
JagInitData.VerticalBeginSync);
WRITE_REGISTER_USHORT(&Jaguar->VerticalEndSync.Short,
JagInitData.VerticalEndSync);
WRITE_REGISTER_USHORT(&Jaguar->VerticalLine.Short,
JagInitData.VerticalLine);
WRITE_REGISTER_USHORT(&Jaguar->XferLength.Short,
JagInitData.XferLength);
WRITE_REGISTER_USHORT(&Jaguar->VerticalInterruptLine.Short,
JagInitData.VerticalInterruptLine);
WRITE_REGISTER_USHORT(&Jaguar->HorizontalDisplay.Short,
JagInitData.HorizontalDisplay);
WRITE_REGISTER_UCHAR(&Jaguar->BitBltControl.Byte,
JagInitData.BitBltControl);
//
// Enable timing.
//
WRITE_REGISTER_UCHAR(&Jaguar->MonitorControl,MONITOR_TIMING_ENABLE);
return ESUCCESS;
}
#endif
