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[CPORTLIB]

Browse source 
Code formatting only.

svn path=/trunk/; revision=57759
This commit is contained in:
Hermès Bélusca-Maïto 2012-11-24 18:22:26 +00:00
parent 1279ab0e12
commit c5166c1a2d
3 changed files with 120 additions and 112 deletions
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4
reactos/include/reactos/drivers/serial/ns16550.h
View file

@ -11,8 +11,8 @@
#pragma once
/* Note: These definitions are the internal definitions used by Microsoft serial
driver (see src/kernel/serial/serial.h in WDK source code). Linux uses its own, as
do most other OS.
driver (see src/kernel/serial/serial.h in WDK source code). Linux uses its own,
as do most other OS.
*/
#if !defined(SERIAL_REGISTER_STRIDE)

2
reactos/include/reactos/libs/cportlib/cportlib.h
View file

@ -72,3 +72,5 @@ CpPutByte(
IN PCPPORT Port,
IN UCHAR Byte
);
/* EOF */

12
reactos/lib/cportlib/cport.c
View file

@ -72,12 +72,11 @@ BOOLEAN
NTAPI
CpDoesPortExist(IN PUCHAR Address)
{
UCHAR Old;
/*
* See "Building Hardware and Firmware to Complement Microsoft Windows Headless Operation"
* Out-of-Band Management Port Device Requirements:
* The device must act as a 16550 or 16450 UART.
* Windows Server 2003 will test this device using the following process.
* Windows Server 2003 will test this device using the following process:
* 1. Save off the current modem status register.
* 2. Place the UART into diagnostic mode (The UART is placed into loopback mode
* by writing SERIAL_MCR_LOOP to the modem control register).
@ -91,9 +90,12 @@ CpDoesPortExist(IN PUCHAR Address)
* This means SERIAL_MSR_RI should be set.
* 6. Restore original modem status register.
*/
Old = READ_PORT_UCHAR(Address + MODEM_CONTROL_REGISTER);
UCHAR Old = READ_PORT_UCHAR(Address + MODEM_CONTROL_REGISTER);
WRITE_PORT_UCHAR(Address + MODEM_CONTROL_REGISTER, SERIAL_MCR_LOOP);
WRITE_PORT_UCHAR(Address + MODEM_CONTROL_REGISTER, SERIAL_MCR_LOOP);
if (!(READ_PORT_UCHAR(Address + MODEM_STATUS_REGISTER) &
(SERIAL_MSR_CTS | SERIAL_MSR_DSR | SERIAL_MSR_RI | SERIAL_MSR_DCD)))
{
@ -105,7 +107,9 @@ CpDoesPortExist(IN PUCHAR Address)
return TRUE;
}
}
WRITE_PORT_UCHAR(Address + MODEM_CONTROL_REGISTER, Old);
return FALSE;
}
@ -225,3 +229,5 @@ CpPutByte(IN PCPPORT Port,
/* Send the byte */
WRITE_PORT_UCHAR(Port->Address + RECEIVE_BUFFER_REGISTER, Byte);
}
/* EOF */