mirror of
https://github.com/reactos/reactos.git
synced 2024-11-05 22:26:39 +00:00
352 lines
8.5 KiB
C
352 lines
8.5 KiB
C
/*
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* PROJECT: ReactOS Kernel
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* LICENSE: BSD - See COPYING.ARM in the top level directory
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* FILE: ntoskrnl/ex/hdlsterm.c
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* PURPOSE: Headless Terminal Support
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* PROGRAMMERS: ReactOS Portable Systems Group
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*/
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/* INCLUDES ******************************************************************/
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#include <ntoskrnl.h>
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#include <debug.h>
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/* GLOBALS *******************************************************************/
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PHEADLESS_GLOBALS HeadlessGlobals;
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/* FUNCTIONS *****************************************************************/
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VOID
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NTAPI
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HdlspSendStringAtBaud(
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IN PUCHAR String
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)
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{
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/* Send every byte */
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while (*String++ != ANSI_NULL)
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{
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InbvPortPutByte(HeadlessGlobals->TerminalPort, *String);
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}
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}
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NTSTATUS
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NTAPI
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HdlspEnableTerminal(
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IN BOOLEAN Enable
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)
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{
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/* Enable if requested, as long as this isn't a PCI serial port crashing */
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if ((Enable) &&
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!(HeadlessGlobals->TerminalEnabled) &&
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!((HeadlessGlobals->IsMMIODevice) && (HeadlessGlobals->InBugCheck)))
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{
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/* Initialize the COM port with cportlib */
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HeadlessGlobals->TerminalEnabled = InbvPortInitialize(
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HeadlessGlobals->TerminalBaudRate,
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HeadlessGlobals->TerminalPortNumber,
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HeadlessGlobals->TerminalPortAddress,
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&HeadlessGlobals->TerminalPort,
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HeadlessGlobals->IsMMIODevice);
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if (!HeadlessGlobals->TerminalEnabled) return STATUS_UNSUCCESSFUL;
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/* Cleanup the screen and reset the cursor */
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HdlspSendStringAtBaud((PUCHAR)"\x1B[2J");
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HdlspSendStringAtBaud((PUCHAR)"\x1B[H");
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/* Enable FIFO */
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InbvPortEnableFifo(HeadlessGlobals->TerminalPort, TRUE);
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}
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else if (!Enable)
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{
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/* Specific case when headless is being disabled */
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InbvPortTerminate(HeadlessGlobals->TerminalPort);
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HeadlessGlobals->TerminalPort = 0;
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HeadlessGlobals->TerminalEnabled = FALSE;
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}
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return STATUS_SUCCESS;
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}
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VOID
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NTAPI
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INIT_FUNCTION
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HeadlessInit(
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IN PLOADER_PARAMETER_BLOCK LoaderBlock
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)
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{
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PHEADLESS_LOADER_BLOCK HeadlessBlock;
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HeadlessBlock = LoaderBlock->Extension->HeadlessLoaderBlock;
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if (!HeadlessBlock) return;
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if ((HeadlessBlock->PortNumber > 4) && (HeadlessBlock->UsedBiosSettings)) return;
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HeadlessGlobals = ExAllocatePoolWithTag(
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NonPagedPool,
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sizeof(HEADLESS_GLOBALS),
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'sldH');
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if (!HeadlessGlobals) return;
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/* Zero and copy loader data */
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RtlZeroMemory(HeadlessGlobals, sizeof(HEADLESS_GLOBALS));
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HeadlessGlobals->TerminalPortNumber = HeadlessBlock->PortNumber;
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HeadlessGlobals->TerminalPortAddress = HeadlessBlock->PortAddress;
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HeadlessGlobals->TerminalBaudRate = HeadlessBlock->BaudRate;
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HeadlessGlobals->TerminalParity = HeadlessBlock->Parity;
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HeadlessGlobals->TerminalStopBits = HeadlessBlock->StopBits;
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HeadlessGlobals->UsedBiosSettings = HeadlessBlock->UsedBiosSettings;
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HeadlessGlobals->IsMMIODevice = HeadlessBlock->IsMMIODevice;
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HeadlessGlobals->TerminalType = HeadlessBlock->TerminalType;
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HeadlessGlobals->SystemGUID = HeadlessBlock->SystemGUID;
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/* These two are opposites of each other */
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if (HeadlessGlobals->IsMMIODevice) HeadlessGlobals->IsNonLegacyDevice = TRUE;
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/* Check for a PCI device, warn that this isn't supported */
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if (HeadlessBlock->PciDeviceId != PCI_INVALID_VENDORID)
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{
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DPRINT1("PCI Serial Ports not supported\n");
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}
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/* Log entries are not yet supported */
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DPRINT1("FIXME: No Headless logging support\n");
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/* Allocate temporary buffer */
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HeadlessGlobals->TmpBuffer = ExAllocatePoolWithTag(NonPagedPool, 80, 'sldH');
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if (!HeadlessGlobals->TmpBuffer) return;
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/* Windows seems to apply some special hacks for 9600 bps */
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if (HeadlessGlobals->TerminalBaudRate == 9600)
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{
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DPRINT1("Please use other baud rate than 9600bps for now\n");
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}
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/* Enable the terminal */
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HdlspEnableTerminal(TRUE);
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}
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VOID
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NTAPI
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HdlspPutString(
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IN PUCHAR String
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)
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{
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PUCHAR Dest = HeadlessGlobals->TmpBuffer;
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UCHAR Char = 0;
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/* Scan each character */
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while (*String != ANSI_NULL)
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{
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/* Check for rotate, send existing buffer and restart from where we are */
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if (Dest >= &HeadlessGlobals->TmpBuffer[79])
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{
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HeadlessGlobals->TmpBuffer[79] = ANSI_NULL;
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HdlspSendStringAtBaud(HeadlessGlobals->TmpBuffer);
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Dest = HeadlessGlobals->TmpBuffer;
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}
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else
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{
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/* Get the current character and check for special graphical chars */
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Char = *String;
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if (Char & 0x80)
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{
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switch (Char)
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{
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case 0xB0: case 0xB3: case 0xBA:
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Char = '|';
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break;
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case 0xB1: case 0xDC: case 0xDD: case 0xDE: case 0xDF:
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Char = '%';
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break;
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case 0xB2: case 0xDB:
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Char = '#';
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break;
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case 0xA9: case 0xAA: case 0xBB: case 0xBC: case 0xBF:
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case 0xC0: case 0xC8: case 0xC9: case 0xD9: case 0xDA:
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Char = '+';
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break;
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case 0xC4:
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Char = '-';
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break;
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case 0xCD:
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Char = '=';
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break;
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}
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}
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/* Anything else must be Unicode */
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if (Char & 0x80)
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{
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/* Can't do Unicode yet */
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UNIMPLEMENTED;
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}
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else
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{
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/* Add the modified char to the temporary buffer */
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*Dest++ = Char;
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}
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/* Check the next char */
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String++;
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}
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}
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/* Finish and send */
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*Dest = ANSI_NULL;
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HdlspSendStringAtBaud(HeadlessGlobals->TmpBuffer);
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}
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NTSTATUS
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NTAPI
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HdlspDispatch(
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IN HEADLESS_CMD Command,
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IN PVOID InputBuffer,
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IN SIZE_T InputBufferSize,
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OUT PVOID OutputBuffer,
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OUT PSIZE_T OutputBufferSize
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)
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{
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NTSTATUS Status = STATUS_NOT_IMPLEMENTED;
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ASSERT(HeadlessGlobals != NULL);
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// ASSERT(HeadlessGlobals->PageLockHandle != NULL);
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/* FIXME: This should be using the headless spinlock */
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/* Ignore non-reentrant commands */
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if ((Command != HeadlessCmdAddLogEntry) &&
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(Command != HeadlessCmdStartBugCheck) &&
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(Command != HeadlessCmdSendBlueScreenData) &&
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(Command != HeadlessCmdDoBugCheckProcessing))
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{
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if (HeadlessGlobals->ProcessingCmd) return STATUS_UNSUCCESSFUL;
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/* Don't allow these commands next time */
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HeadlessGlobals->ProcessingCmd = TRUE;
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}
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/* Handle each command */
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switch (Command)
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{
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case HeadlessCmdEnableTerminal:
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break;
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case HeadlessCmdCheckForReboot:
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break;
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case HeadlessCmdPutString:
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/* Validate the existence of an input buffer */
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if (!InputBuffer)
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{
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Status = STATUS_INVALID_PARAMETER;
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goto Reset;
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}
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/* Terminal should be on */
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if (HeadlessGlobals->TerminalEnabled)
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{
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/* Print each byte in the string making sure VT100 chars are used */
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PHEADLESS_CMD_PUT_STRING PutString = (PVOID)InputBuffer;
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HdlspPutString(PutString->String);
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}
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/* Return success either way */
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Status = STATUS_SUCCESS;
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break;
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case HeadlessCmdClearDisplay:
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break;
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case HeadlessCmdClearToEndOfDisplay:
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break;
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case HeadlessCmdClearToEndOfLine:
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break;
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case HeadlessCmdDisplayAttributesOff:
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break;
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case HeadlessCmdDisplayInverseVideo:
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break;
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case HeadlessCmdSetColor:
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break;
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case HeadlessCmdPositionCursor:
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break;
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case HeadlessCmdTerminalPoll:
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break;
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case HeadlessCmdGetByte:
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break;
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case HeadlessCmdGetLine:
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break;
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case HeadlessCmdStartBugCheck:
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break;
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case HeadlessCmdDoBugCheckProcessing:
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break;
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case HeadlessCmdQueryInformation:
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break;
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case HeadlessCmdAddLogEntry:
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break;
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case HeadlessCmdDisplayLog:
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break;
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case HeadlessCmdSetBlueScreenData:
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break;
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case HeadlessCmdSendBlueScreenData:
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break;
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case HeadlessCmdQueryGUID:
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break;
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case HeadlessCmdPutData:
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break;
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default:
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break;
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}
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Reset:
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/* Unset prcessing state */
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if ((Command != HeadlessCmdAddLogEntry) &&
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(Command != HeadlessCmdStartBugCheck) &&
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(Command != HeadlessCmdSendBlueScreenData) &&
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(Command != HeadlessCmdDoBugCheckProcessing))
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{
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ASSERT(HeadlessGlobals->ProcessingCmd == TRUE);
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HeadlessGlobals->ProcessingCmd = FALSE;
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}
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//UNIMPLEMENTED;
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return STATUS_SUCCESS;
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}
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/*
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* @unimplemented
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*/
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NTSTATUS
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NTAPI
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HeadlessDispatch(
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IN HEADLESS_CMD Command,
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IN PVOID InputBuffer,
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IN SIZE_T InputBufferSize,
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OUT PVOID OutputBuffer,
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OUT PSIZE_T OutputBufferSize
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)
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{
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/* Check for stubs that will expect something even with headless off */
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if (!HeadlessGlobals)
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{
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/* Don't allow the SAC to connect */
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if (Command == HeadlessCmdEnableTerminal) return STATUS_UNSUCCESSFUL;
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/* Send bogus reply */
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if ((Command == HeadlessCmdQueryInformation) ||
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(Command == HeadlessCmdGetByte) ||
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(Command == HeadlessCmdGetLine) ||
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(Command == HeadlessCmdCheckForReboot) ||
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(Command == HeadlessCmdTerminalPoll))
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{
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if (!(OutputBuffer) || !(OutputBufferSize)) return STATUS_INVALID_PARAMETER;
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RtlZeroMemory(OutputBuffer, *OutputBufferSize);
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}
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return STATUS_SUCCESS;
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}
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/* Do the real work */
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return HdlspDispatch(
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Command,
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InputBuffer,
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InputBufferSize,
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OutputBuffer,
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OutputBufferSize);
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}
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/* EOF */
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