mirror of
https://github.com/reactos/reactos.git
synced 2024-10-08 18:29:05 +00:00
541 lines
14 KiB
C
541 lines
14 KiB
C
/*
|
|
* COPYRIGHT: GPL - See COPYING in the top level directory
|
|
* PROJECT: ReactOS Virtual DOS Machine
|
|
* FILE: subsystems/mvdm/ntvdm/bios/bios32/moubios32.c
|
|
* PURPOSE: VDM 32-bit PS/2 Mouse BIOS
|
|
* PROGRAMMERS: Aleksandar Andrejevic <theflash AT sdf DOT lonestar DOT org>
|
|
* Hermes Belusca-Maito (hermes.belusca@sfr.fr)
|
|
*
|
|
* NOTE: Based from VirtualBox OSE ROM BIOS, and SeaBIOS.
|
|
*/
|
|
|
|
/* INCLUDES *******************************************************************/
|
|
|
|
#include "ntvdm.h"
|
|
|
|
#define NDEBUG
|
|
#include <debug.h>
|
|
|
|
#include "emulator.h"
|
|
#include "cpu/cpu.h" // for EMULATOR_FLAG_CF
|
|
|
|
#include "moubios32.h"
|
|
#include "bios32p.h"
|
|
|
|
#include "io.h"
|
|
#include "hardware/mouse.h"
|
|
#include "hardware/ps2.h"
|
|
|
|
/* PRIVATE VARIABLES **********************************************************/
|
|
|
|
#define MOUSE_IRQ_INT 0x74
|
|
|
|
static BOOLEAN MouseEnabled = FALSE;
|
|
static DWORD OldIrqHandler;
|
|
|
|
/*
|
|
* Far pointer to a device handler. In compatible PS/2, it is stored in the EBDA.
|
|
*
|
|
* See Ralf Brown: http://www.ctyme.com/intr/rb-1603.htm
|
|
* for more information. In particular:
|
|
* when the subroutine is called, it is given 4 WORD values on the stack;
|
|
* the handler should return with a FAR return without popping the stack.
|
|
*/
|
|
static ULONG DeviceHandler = 0;
|
|
|
|
/* PRIVATE FUNCTIONS **********************************************************/
|
|
|
|
static VOID DisableMouseInt(VOID)
|
|
{
|
|
BYTE ControllerConfig;
|
|
|
|
/* Clear the mouse queue */
|
|
while (PS2PortQueueRead(1)) ; // NOTE: Should be a IOReadB! But see r67231
|
|
|
|
/* Disable mouse interrupt and events */
|
|
IOWriteB(PS2_CONTROL_PORT, 0x20);
|
|
ControllerConfig = IOReadB(PS2_DATA_PORT);
|
|
ControllerConfig &= ~0x02; // Turn off IRQ12
|
|
ControllerConfig |= 0x20; // Disable mouse clock line
|
|
IOWriteB(PS2_CONTROL_PORT, 0x60);
|
|
IOWriteB(PS2_DATA_PORT, ControllerConfig);
|
|
}
|
|
|
|
static VOID EnableMouseInt(VOID)
|
|
{
|
|
BYTE ControllerConfig;
|
|
|
|
/* Clear the mouse queue */
|
|
while (PS2PortQueueRead(1)) ; // NOTE: Should be a IOReadB! But see r67231
|
|
|
|
/* Enable mouse interrupt and events */
|
|
IOWriteB(PS2_CONTROL_PORT, 0x20);
|
|
ControllerConfig = IOReadB(PS2_DATA_PORT);
|
|
ControllerConfig |= 0x02; // Turn on IRQ12
|
|
ControllerConfig &= ~0x20; // Enable mouse clock line
|
|
IOWriteB(PS2_CONTROL_PORT, 0x60);
|
|
IOWriteB(PS2_DATA_PORT, ControllerConfig);
|
|
}
|
|
|
|
static inline
|
|
VOID SendMouseCommand(UCHAR Command)
|
|
{
|
|
/* Clear the mouse queue */
|
|
while (PS2PortQueueRead(1)) ; // NOTE: Should be a IOReadB! But see r67231
|
|
|
|
/* Send the command */
|
|
IOWriteB(PS2_CONTROL_PORT, 0xD4);
|
|
IOWriteB(PS2_DATA_PORT, Command);
|
|
}
|
|
|
|
static inline
|
|
UCHAR ReadMouseData(VOID)
|
|
{
|
|
PS2PortQueueRead(1); // NOTE: Should be a IOReadB! But see r67231
|
|
return IOReadB(PS2_DATA_PORT);
|
|
}
|
|
|
|
|
|
static
|
|
VOID BiosMouseEnable(VOID)
|
|
{
|
|
if (MouseEnabled) return;
|
|
|
|
MouseEnabled = TRUE;
|
|
|
|
/* Get the old IRQ handler */
|
|
OldIrqHandler = ((PDWORD)BaseAddress)[MOUSE_IRQ_INT];
|
|
|
|
/* Set the IRQ handler */
|
|
//RegisterInt32(MAKELONG(FIELD_OFFSET(MOUSE_DRIVER, MouseIrqInt16Stub), MouseDataSegment),
|
|
// MOUSE_IRQ_INT, DosMouseIrq, NULL);
|
|
}
|
|
|
|
static
|
|
VOID BiosMouseDisable(VOID)
|
|
{
|
|
if (!MouseEnabled) return;
|
|
|
|
/* Restore the old IRQ handler */
|
|
// ((PDWORD)BaseAddress)[MOUSE_IRQ_INT] = OldIrqHandler;
|
|
|
|
MouseEnabled = FALSE;
|
|
}
|
|
|
|
|
|
// Mouse IRQ 12
|
|
static VOID WINAPI BiosMouseIrq(LPWORD Stack)
|
|
{
|
|
DPRINT1("PS/2 Mouse IRQ! DeviceHandler = 0x%04X:0x%04X\n",
|
|
HIWORD(DeviceHandler), LOWORD(DeviceHandler));
|
|
|
|
if (DeviceHandler != 0)
|
|
{
|
|
/*
|
|
* Prepare the stack for the mouse device handler:
|
|
* push Status, X and Y data, and a zero word.
|
|
*/
|
|
setSP(getSP() - sizeof(WORD));
|
|
*((LPWORD)SEG_OFF_TO_PTR(getSS(), getSP())) = 0; // Status
|
|
setSP(getSP() - sizeof(WORD));
|
|
*((LPWORD)SEG_OFF_TO_PTR(getSS(), getSP())) = 0; // X data (high byte = 0)
|
|
setSP(getSP() - sizeof(WORD));
|
|
*((LPWORD)SEG_OFF_TO_PTR(getSS(), getSP())) = 0; // Y data (high byte = 0)
|
|
setSP(getSP() - sizeof(WORD));
|
|
*((LPWORD)SEG_OFF_TO_PTR(getSS(), getSP())) = 0; // Zero
|
|
|
|
/* Call the device handler */
|
|
RunCallback16(&BiosContext, DeviceHandler);
|
|
|
|
/* Pop the stack */
|
|
setSP(getSP() + 4*sizeof(WORD));
|
|
}
|
|
|
|
PicIRQComplete(LOBYTE(Stack[STACK_INT_NUM]));
|
|
}
|
|
|
|
VOID BiosMousePs2Interface(LPWORD Stack)
|
|
{
|
|
/* Disable mouse interrupt and events */
|
|
DisableMouseInt();
|
|
|
|
switch (getAL())
|
|
{
|
|
/* Enable / Disable */
|
|
case 0x00:
|
|
{
|
|
UCHAR State = getBH();
|
|
|
|
if (State > 2)
|
|
{
|
|
/* Invalid function */
|
|
setAH(0x01);
|
|
Stack[STACK_FLAGS] |= EMULATOR_FLAG_CF;
|
|
break;
|
|
}
|
|
|
|
if (State == 0x00)
|
|
{
|
|
BiosMouseDisable();
|
|
|
|
/* Disable packet reporting */
|
|
SendMouseCommand(0xF5);
|
|
}
|
|
else // if (State == 0x01)
|
|
{
|
|
/* Check for the presence of the device handler */
|
|
if (DeviceHandler == 0)
|
|
{
|
|
/* No device handler installed */
|
|
setAH(0x05);
|
|
Stack[STACK_FLAGS] |= EMULATOR_FLAG_CF;
|
|
break;
|
|
}
|
|
|
|
BiosMouseEnable();
|
|
|
|
/* Enable packet reporting */
|
|
SendMouseCommand(0xF4);
|
|
}
|
|
|
|
if (ReadMouseData() != MOUSE_ACK)
|
|
{
|
|
/* Failure */
|
|
setAH(0x03);
|
|
Stack[STACK_FLAGS] |= EMULATOR_FLAG_CF;
|
|
break;
|
|
}
|
|
|
|
/* Success */
|
|
setAH(0x00);
|
|
Stack[STACK_FLAGS] &= ~EMULATOR_FLAG_CF;
|
|
break;
|
|
}
|
|
|
|
/* Initialize */
|
|
case 0x05:
|
|
{
|
|
// Fall through
|
|
}
|
|
|
|
/* Reset */
|
|
case 0x01:
|
|
{
|
|
UCHAR Answer;
|
|
|
|
SendMouseCommand(0xFF);
|
|
Answer = ReadMouseData();
|
|
/* A "Resend" signal (0xFE) is sent if no mouse is attached */
|
|
if (Answer == 0xFE)
|
|
{
|
|
/* Resend */
|
|
setAH(0x04);
|
|
Stack[STACK_FLAGS] |= EMULATOR_FLAG_CF;
|
|
break;
|
|
}
|
|
else if (Answer != MOUSE_ACK)
|
|
{
|
|
/* Failure */
|
|
setAH(0x03);
|
|
Stack[STACK_FLAGS] |= EMULATOR_FLAG_CF;
|
|
break;
|
|
}
|
|
|
|
setBL(ReadMouseData()); // Should be MOUSE_BAT_SUCCESS
|
|
setBH(ReadMouseData()); // Mouse ID
|
|
|
|
/* Success */
|
|
setAH(0x00);
|
|
Stack[STACK_FLAGS] &= ~EMULATOR_FLAG_CF;
|
|
break;
|
|
}
|
|
|
|
/* Set Sampling Rate */
|
|
case 0x02:
|
|
{
|
|
UCHAR SampleRate = 0;
|
|
|
|
switch (getBH())
|
|
{
|
|
case 0x00: SampleRate = 10; break; // 10 reports/sec
|
|
case 0x01: SampleRate = 20; break; // 20 " "
|
|
case 0x02: SampleRate = 40; break; // 40 " "
|
|
case 0x03: SampleRate = 60; break; // 60 " "
|
|
case 0x04: SampleRate = 80; break; // 80 " "
|
|
case 0x05: SampleRate = 100; break; // 100 " "
|
|
case 0x06: SampleRate = 200; break; // 200 " "
|
|
default: SampleRate = 0;
|
|
}
|
|
|
|
if (SampleRate == 0)
|
|
{
|
|
/* Invalid input */
|
|
setAH(0x02);
|
|
Stack[STACK_FLAGS] |= EMULATOR_FLAG_CF;
|
|
break;
|
|
}
|
|
|
|
SendMouseCommand(0xF3);
|
|
if (ReadMouseData() != MOUSE_ACK)
|
|
{
|
|
/* Failure */
|
|
setAH(0x03);
|
|
Stack[STACK_FLAGS] |= EMULATOR_FLAG_CF;
|
|
break;
|
|
}
|
|
|
|
SendMouseCommand(SampleRate);
|
|
if (ReadMouseData() != MOUSE_ACK)
|
|
{
|
|
/* Failure */
|
|
setAH(0x03);
|
|
Stack[STACK_FLAGS] |= EMULATOR_FLAG_CF;
|
|
break;
|
|
}
|
|
|
|
/* Success */
|
|
setAH(0x00);
|
|
Stack[STACK_FLAGS] &= ~EMULATOR_FLAG_CF;
|
|
break;
|
|
}
|
|
|
|
/* Set Resolution */
|
|
case 0x03:
|
|
{
|
|
UCHAR Resolution = getBH();
|
|
|
|
/*
|
|
* 0: 25 dpi, 1 count per millimeter
|
|
* 1: 50 dpi, 2 counts per millimeter
|
|
* 2: 100 dpi, 4 counts per millimeter
|
|
* 3: 200 dpi, 8 counts per millimeter
|
|
*/
|
|
if (Resolution > 3)
|
|
{
|
|
/* Invalid input */
|
|
setAH(0x02);
|
|
Stack[STACK_FLAGS] |= EMULATOR_FLAG_CF;
|
|
break;
|
|
}
|
|
|
|
SendMouseCommand(0xE8);
|
|
if (ReadMouseData() != MOUSE_ACK)
|
|
{
|
|
/* Failure */
|
|
setAH(0x03);
|
|
Stack[STACK_FLAGS] |= EMULATOR_FLAG_CF;
|
|
break;
|
|
}
|
|
|
|
SendMouseCommand(Resolution);
|
|
if (ReadMouseData() != MOUSE_ACK)
|
|
{
|
|
/* Failure */
|
|
setAH(0x03);
|
|
Stack[STACK_FLAGS] |= EMULATOR_FLAG_CF;
|
|
break;
|
|
}
|
|
|
|
/* Success */
|
|
setAH(0x00);
|
|
Stack[STACK_FLAGS] &= ~EMULATOR_FLAG_CF;
|
|
break;
|
|
}
|
|
|
|
/* Get Type */
|
|
case 0x04:
|
|
{
|
|
SendMouseCommand(0xF2);
|
|
if (ReadMouseData() != MOUSE_ACK)
|
|
{
|
|
/* Failure */
|
|
setAH(0x03);
|
|
Stack[STACK_FLAGS] |= EMULATOR_FLAG_CF;
|
|
break;
|
|
}
|
|
|
|
setBH(ReadMouseData());
|
|
|
|
/* Success */
|
|
setAH(0x00);
|
|
Stack[STACK_FLAGS] &= ~EMULATOR_FLAG_CF;
|
|
break;
|
|
}
|
|
|
|
/* Extended Commands (Return Status and Set Scaling Factor) */
|
|
case 0x06:
|
|
{
|
|
UCHAR Command = getBH();
|
|
|
|
switch (Command)
|
|
{
|
|
/* Return Status */
|
|
case 0x00:
|
|
{
|
|
SendMouseCommand(0xE9);
|
|
if (ReadMouseData() != MOUSE_ACK)
|
|
{
|
|
/* Failure */
|
|
setAH(0x03);
|
|
Stack[STACK_FLAGS] |= EMULATOR_FLAG_CF;
|
|
break;
|
|
}
|
|
|
|
setBL(ReadMouseData()); // Status
|
|
setCL(ReadMouseData()); // Resolution
|
|
setDL(ReadMouseData()); // Sample rate
|
|
|
|
/* Success */
|
|
setAH(0x00);
|
|
Stack[STACK_FLAGS] &= ~EMULATOR_FLAG_CF;
|
|
break;
|
|
}
|
|
|
|
/* Set Scaling Factor to 1:1 */
|
|
case 0x01:
|
|
/* Set Scaling Factor to 2:1 */
|
|
case 0x02:
|
|
{
|
|
SendMouseCommand(Command == 0x01 ? 0xE6 : 0xE7);
|
|
if (ReadMouseData() != MOUSE_ACK)
|
|
{
|
|
/* Failure */
|
|
setAH(0x03);
|
|
Stack[STACK_FLAGS] |= EMULATOR_FLAG_CF;
|
|
break;
|
|
}
|
|
|
|
/* Success */
|
|
setAH(0x00);
|
|
Stack[STACK_FLAGS] &= ~EMULATOR_FLAG_CF;
|
|
break;
|
|
}
|
|
|
|
default:
|
|
{
|
|
/* Invalid function */
|
|
setAH(0x01);
|
|
Stack[STACK_FLAGS] |= EMULATOR_FLAG_CF;
|
|
break;
|
|
}
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
/* Set Device Handler Address */
|
|
case 0x07:
|
|
{
|
|
/* ES:BX == 0000h:0000h removes the device handler */
|
|
DeviceHandler = MAKELONG(getBX(), getES());
|
|
|
|
/* Success */
|
|
setAH(0x00);
|
|
Stack[STACK_FLAGS] &= ~EMULATOR_FLAG_CF;
|
|
break;
|
|
}
|
|
|
|
/* Write to Pointer Port */
|
|
case 0x08:
|
|
{
|
|
SendMouseCommand(getBL());
|
|
if (ReadMouseData() != MOUSE_ACK)
|
|
{
|
|
/* Failure */
|
|
setAH(0x03);
|
|
Stack[STACK_FLAGS] |= EMULATOR_FLAG_CF;
|
|
break;
|
|
}
|
|
|
|
/* Success */
|
|
setAH(0x00);
|
|
Stack[STACK_FLAGS] &= ~EMULATOR_FLAG_CF;
|
|
break;
|
|
}
|
|
|
|
/* Read from Pointer Port */
|
|
case 0x09:
|
|
{
|
|
setBL(ReadMouseData());
|
|
setCL(ReadMouseData());
|
|
setDL(ReadMouseData());
|
|
|
|
/* Success */
|
|
setAH(0x00);
|
|
Stack[STACK_FLAGS] &= ~EMULATOR_FLAG_CF;
|
|
break;
|
|
}
|
|
|
|
default:
|
|
{
|
|
DPRINT1("INT 15h, AH = C2h, AL = %02Xh NOT IMPLEMENTED\n",
|
|
getAL());
|
|
|
|
/* Unknown function */
|
|
setAH(0x01);
|
|
Stack[STACK_FLAGS] |= EMULATOR_FLAG_CF;
|
|
}
|
|
}
|
|
|
|
/* Reenable mouse interrupt and events */
|
|
EnableMouseInt();
|
|
}
|
|
|
|
/* PUBLIC FUNCTIONS ***********************************************************/
|
|
|
|
VOID MouseBios32Post(VOID)
|
|
{
|
|
UCHAR Answer;
|
|
|
|
/* Initialize PS/2 mouse port */
|
|
// Enable the port
|
|
IOWriteB(PS2_CONTROL_PORT, 0xA8);
|
|
|
|
/* Detect mouse presence by attempting a reset */
|
|
SendMouseCommand(0xFF);
|
|
Answer = ReadMouseData();
|
|
/* A "Resend" signal (0xFE) is sent if no mouse is attached */
|
|
if (Answer == 0xFE)
|
|
{
|
|
DPRINT1("No mouse present!\n");
|
|
}
|
|
else if (Answer != MOUSE_ACK)
|
|
{
|
|
DPRINT1("Mouse reset failure!\n");
|
|
}
|
|
else
|
|
{
|
|
/* Mouse present, try to completely enable it */
|
|
|
|
// FIXME: The following is temporary until
|
|
// this is moved into the mouse driver!!
|
|
|
|
/* Enable packet reporting */
|
|
SendMouseCommand(0xF4);
|
|
if (ReadMouseData() != MOUSE_ACK)
|
|
{
|
|
DPRINT1("Failed to enable mouse!\n");
|
|
}
|
|
else
|
|
{
|
|
/* Enable mouse interrupt and events */
|
|
EnableMouseInt();
|
|
}
|
|
}
|
|
|
|
/* No mouse driver available so far */
|
|
RegisterBiosInt32(0x33, NULL);
|
|
|
|
/* Set up the HW vector interrupts */
|
|
EnableHwIRQ(12, BiosMouseIrq);
|
|
}
|
|
|
|
BOOLEAN MouseBiosInitialize(VOID)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
VOID MouseBios32Cleanup(VOID)
|
|
{
|
|
}
|