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Latest version of serial mouse driver with fixes by Logan_V8_TT.

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svn path=/trunk/; revision=7968
This commit is contained in:
Filip Navara 2004-02-01 18:28:38 +00:00
parent 8443a77631
commit c9e333fafc
1 changed files with 11 additions and 19 deletions
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30
reactos/drivers/input/sermouse/sermouse.c
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@ -377,33 +377,23 @@ VOID SerialMouseIsrDpc(PKDPC Dpc, PDEVICE_OBJECT DeviceObject, PIRP Irp, PVOID C
void InitializeSerialPort(ULONG Port)
{
ULONG LineControl;
/* Read old value from line control register */
LineControl = READ_PORT_UCHAR((PUCHAR)Port + 3);
/* NOT SURE WHAT IS THIS SUPPOSED TO DO! */
WRITE_PORT_UCHAR((PUCHAR)Port + 1, 0);
WRITE_PORT_UCHAR((PUCHAR)Port + 2, 0);
/* DLAB off */
WRITE_PORT_UCHAR((PUCHAR)Port + 3, 0);
WRITE_PORT_UCHAR((PUCHAR)Port + 2, 0); /* FCR: disable FIFO */
WRITE_PORT_UCHAR((PUCHAR)Port + 1, 0); /* IER: disable ints */
/* Set DLAB on */
WRITE_PORT_UCHAR((PUCHAR)Port + 3, 0x80);
/* Set serial port speed */
WRITE_PORT_UCHAR((PUCHAR)Port, 0x60);
WRITE_PORT_UCHAR((PUCHAR)Port + 1, 0);
/* Set DLAB off and restore the old value of line control reg. */
WRITE_PORT_UCHAR((PUCHAR)Port + 3, LineControl & ~0x80);
/* Set DLAB off and set LCR */
WRITE_PORT_UCHAR((PUCHAR)Port + 3, 2);
WRITE_PORT_UCHAR((PUCHAR)Port + 4, 0x09); /* DR int enable */
(void) READ_PORT_UCHAR((PUCHAR)Port + 5); /* clear error bits */
KeStallExecutionProcessor(150000); /* Wait > 100 ms */
}
ULONG DetectMicrosoftMouse(ULONG Port)
{
/*
* Detection method number two. CuteMouse (GPL DOS Mouse driver
* cutemouse.sourceforge.net) assembler port to C by Logan_V8_TT
*/
CHAR Buffer[4];
ULONG i;
UCHAR LCR, MCR;
@ -414,19 +404,21 @@ ULONG DetectMicrosoftMouse(ULONG Port)
/* Reset UART */
WRITE_PORT_UCHAR((PUCHAR)Port + 4, 0); /* MCR: DTR/RTS/OUT2 off */
WRITE_PORT_UCHAR((PUCHAR)Port + 2, 0); /* FCR: disable FIFO */
KeStallExecutionProcessor(150000); /* Wait > 100 ms */
/* Set communications parameters */
InitializeSerialPort(Port);
/* Flush receive buffer */
(void) READ_PORT_UCHAR((PUCHAR)Port);
KeStallExecutionProcessor(150000); /* Wait > 100 ms */
/* Enable DTR/RTS (OUT2 disabled) */
WRITE_PORT_UCHAR((PUCHAR)Port + 4, 3);
/* Discard serial buffer data */
while (READ_PORT_UCHAR((PUCHAR)Port + 5) & 0x01)
(void)READ_PORT_UCHAR((PUCHAR)Port);
KeStallExecutionProcessor(100000); /* Wait */
KeStallExecutionProcessor(200000); /* Wait */
/* Read the data */
for (i = 0; i < 4; i++)