textcons.c

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/*
 * COPYRIGHT:       See COPYING.ARM in the top level directory
 * PROJECT:         ReactOS UEFI Boot Library
 * FILE:            boot/environ/lib/io/display/textcons.c
 * PURPOSE:         Boot Library Text Console Routines
 * PROGRAMMER:      Alex Ionescu (alex.ionescu@reactos.org)
 */
 
/* INCLUDES ******************************************************************/
 
#include "bl.h"
 
/* DATA VARIABLES ************************************************************/
 
BL_TEXT_CONSOLE_VTABLE ConsoleTextLocalVtbl =
{
    ConsoleTextLocalDestruct,
    ConsoleTextLocalReinitialize,
    ConsoleTextBaseGetTextState,
    ConsoleTextLocalSetTextState,
    ConsoleTextBaseGetTextResolution,
    ConsoleTextLocalSetTextResolution,
    ConsoleTextLocalClearText,
    ConsoleTextLocalWriteText
};
 
/* FUNCTIONS *****************************************************************/
 
VOID
ConsoleTextLocalDestruct (
    _In_ struct _BL_TEXT_CONSOLE* Console
    )
{
 
}
 
NTSTATUS
ConsoleTextLocalReinitialize (
    _In_ struct _BL_TEXT_CONSOLE* Console
    )
{
    EfiPrintf(L"Not active yet!\r\n");
    return STATUS_NOT_IMPLEMENTED;
}
 
NTSTATUS
ConsoleTextBaseGetTextState (
    _In_ struct _BL_TEXT_CONSOLE* Console,
    _Out_ PBL_DISPLAY_STATE TextState
    )
{
    return STATUS_NOT_IMPLEMENTED;
}
 
NTSTATUS
ConsoleTextLocalSetTextState (
    _In_ struct _BL_TEXT_CONSOLE* Console,
    _In_ ULONG Mask,
    _In_ PBL_DISPLAY_STATE TextState
    )
{
    return ConsoleFirmwareTextSetState(Console, Mask, TextState);
}
 
NTSTATUS
ConsoleTextBaseGetTextResolution (
    _In_ struct _BL_TEXT_CONSOLE* Console,
    _Out_ PULONG TextResolution
    )
{
    return STATUS_NOT_IMPLEMENTED;
}
 
NTSTATUS
ConsoleTextLocalSetTextResolution (
    _In_ struct _BL_TEXT_CONSOLE* Console,
    _In_ ULONG NewTextResolution,
    _Out_ PULONG OldTextResolution
    )
{
    return STATUS_NOT_IMPLEMENTED;
}
 
NTSTATUS
ConsoleTextLocalClearText (
    _In_ struct _BL_TEXT_CONSOLE* Console,
    _In_ BOOLEAN LineOnly
    )
{
    return ConsoleFirmwareTextClear(Console, LineOnly);
}
 
NTSTATUS
ConsoleTextLocalWriteText (
    _In_ struct _BL_TEXT_CONSOLE* Console,
    _In_ PCHAR Text,
    _In_ ULONG Attribute
    )
{
    return STATUS_NOT_IMPLEMENTED;
}
 
NTSTATUS
ConsoleTextLocalConstruct (
    _In_ PBL_TEXT_CONSOLE TextConsole,
    _In_ BOOLEAN Activate
    )
{
    NTSTATUS Status;
    BL_DISPLAY_STATE TextState;
 
    /* Set our callbacks */
    TextConsole->Callbacks = &ConsoleTextLocalVtbl;
 
    /* Are we activating this console? */
    if (Activate)
    {
        /* Call firmware to activate it */
        Status = ConsoleFirmwareTextOpen(TextConsole);
        if (!NT_SUCCESS(Status))
        {
            EfiPrintf(L"Failed to activate console: %lx\r\n", Status);
            return Status;
        }
    }
 
    /* Set default text state */
    TextState.BgColor = 0;
    TextState.XPos = 0;
    TextState.YPos = 0;
    TextState.CursorVisible = FALSE;
    TextState.FgColor = White;
 
    /* Are we activating? */
    if (Activate)
    {
        /* Call firmware to set it */
        Status = ConsoleFirmwareTextSetState(TextConsole, 0xF, &TextState);
        if (!NT_SUCCESS(Status))
        {
            /* We failed, back down */
            EfiPrintf(L"Failed to set console state: %lx\r\n", Status);
            ConsoleFirmwareTextClose(TextConsole);
            return Status;
        }
    }
    else
    {
        /* Just save the state for now, someone else can activate later */
        TextConsole->State = TextState;
    }
 
    /* Remember if we activated it */
    TextConsole->Active = Activate;
    return STATUS_SUCCESS;
}
 
BOOLEAN
ConsolepFindResolution (
    _In_ PBL_DISPLAY_MODE Mode,
    _In_ PBL_DISPLAY_MODE List,
    _In_ ULONG MaxIndex
    )
{
    PBL_DISPLAY_MODE ListEnd;
 
    /* Loop until we hit the maximum supported list index */
    ListEnd = &List[MaxIndex];
    while (List != ListEnd)
    {
        /* Does this resolution match? */
        if ((Mode->HRes == List->HRes) && (Mode->VRes == List->VRes))
        {
            /* Yep -- we got a match */
            return TRUE;
 
        }
 
        /* Try another one*/
        List++;
    }
 
    /* No matches were found */
    return FALSE;
}
 
BL_INPUT_CONSOLE_VTABLE ConsoleInputLocalVtbl =
{
    (PCONSOLE_DESTRUCT)ConsoleInputLocalDestruct,
    (PCONSOLE_REINITIALIZE)ConsoleInputBaseReinitialize,
};
 
VOID
ConsoleInputLocalDestruct (
    _In_ PBL_INPUT_CONSOLE Console
    )
{
    /* Erase the current input buffer, and tear down the console */
    ConsoleInputLocalEraseBuffer(Console, NULL);
    BlMmFreeHeap(Console->Buffer);
}
 
NTSTATUS
ConsoleInputBaseConstruct (
    _In_ PBL_INPUT_CONSOLE Console
    )
{
    PULONG Buffer;
 
    /* Allocate a new 512 byte buffer */
    Buffer = BlMmAllocateHeap(512);
    Console->Buffer = Buffer;
    if (!Buffer)
    {
        return STATUS_INSUFFICIENT_RESOURCES;
    }
 
    /* Set the current buffer pointers to it */
    Console->DataStart = Buffer;
    Console->DataEnd = Buffer;
 
    /* Set the end 128 data entries into the buffer */
    Console->EndBuffer = Buffer + 128;
    return STATUS_SUCCESS;
}
 
NTSTATUS
ConsoleInputBaseReinitialize (
    _In_ PBL_INPUT_CONSOLE Console
    )
{
    PULONG Buffer;
 
    /* Reset all the buffer pointers to the current buffer */
    Buffer = Console->Buffer;
    Console->DataStart = Buffer;
    Console->DataEnd = Buffer;
    Console->EndBuffer = Buffer + 128;
    return STATUS_SUCCESS;
}
 
NTSTATUS
ConsoleCreateLocalInputConsole (
    VOID
    )
{
    PBL_INPUT_CONSOLE InputConsole;
    NTSTATUS Status;
 
    /* Allocate the input console */
    InputConsole = BlMmAllocateHeap(sizeof(*InputConsole));
    if (!InputConsole)
    {
        return STATUS_INSUFFICIENT_RESOURCES;
    }
 
    /* Construct it */
    Status = ConsoleInputBaseConstruct(InputConsole);
    if (!NT_SUCCESS(Status))
    {
        /* Tear down on failure */
        BlMmFreeHeap(InputConsole);
        return Status;
    }
 
    /* Set the callback table, and set us as the local input console */
    InputConsole->Callbacks = &ConsoleInputLocalVtbl;
    DspLocalInputConsole = InputConsole;
    return STATUS_SUCCESS;
}