mirror of https://github.com/acidanthera/audk.git
Update PS/2 keyboard driver to return scan code for Pause key.
Signed-off-by: vanjeff Reviewed-by: niruiyu git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11657 6f19259b-4bc3-4df7-8a09-765794883524
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@ -15,7 +15,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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#include "Ps2Keyboard.h"
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struct {
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UINT8 ScanCode; ///< follows value defined in Scan Code Set1
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UINT16 ScanCode; ///< follows value defined in Scan Code Set1
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UINT16 EfiScanCode;
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CHAR16 UnicodeChar;
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CHAR16 ShiftUnicodeChar;
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@ -549,7 +549,13 @@ ConvertKeyboardScanCodeToEfiKey[] = {
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SCAN_NULL,
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0x0000,
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0x0000
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},
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},
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{
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0x1D45, //Pause key
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SCAN_PAUSE,
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0x0000,
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0x0000
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},
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{
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TABLE_END,
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TABLE_END,
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@ -1152,8 +1158,9 @@ KeyGetchar (
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)
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{
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EFI_STATUS Status;
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UINT8 ScanCode;
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UINT16 ScanCode;
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BOOLEAN Extended;
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BOOLEAN Extended1;
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UINTN Index;
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EFI_KEY_DATA KeyData;
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LIST_ENTRY *Link;
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@ -1163,20 +1170,18 @@ KeyGetchar (
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//
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UINT8 ScancodeArr[4];
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UINT32 ScancodeArrPos;
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//
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// point to the current position in ScancodeArr
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//
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Extended = FALSE;
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ScancodeArrPos = 0;
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//
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// Check if there are enough bytes of scancode representing a single key
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// available in the buffer
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//
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while (TRUE) {
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Extended = FALSE;
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Extended1 = FALSE;
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Status = GetScancodeBufHead (&ConsoleIn->ScancodeQueue, 1, ScancodeArr);
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//
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// point to the current position in ScancodeArr
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//
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ScancodeArrPos = 0;
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if (EFI_ERROR (Status)) {
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return ;
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@ -1195,7 +1200,7 @@ KeyGetchar (
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// if present, ignore them
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//
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if (ScancodeArr[ScancodeArrPos] == SCANCODE_EXTENDED1) {
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Extended1 = TRUE;
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Status = GetScancodeBufHead (&ConsoleIn->ScancodeQueue, 2, ScancodeArr);
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ScancodeArrPos = 1;
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@ -1209,9 +1214,6 @@ KeyGetchar (
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if (EFI_ERROR (Status)) {
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return ;
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}
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PopScancodeBufHead (&ConsoleIn->ScancodeQueue, 3, ScancodeArr);
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return ;
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}
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//
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// if we reach this position, scancodes for a key is in buffer now,pop them
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@ -1220,104 +1222,114 @@ KeyGetchar (
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if (EFI_ERROR (Status)) {
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return ;
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}
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//
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// store the last available byte, this byte of scancode will be checked
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//
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ScanCode = ScancodeArr[ScancodeArrPos];
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//
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// Check for special keys and update the driver state.
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//
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switch (ScanCode) {
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case SCANCODE_CTRL_MAKE:
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ConsoleIn->Ctrl = TRUE;
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break;
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case SCANCODE_CTRL_BREAK:
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ConsoleIn->Ctrl = FALSE;
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break;
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case SCANCODE_ALT_MAKE:
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ConsoleIn->Alt = TRUE;
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break;
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case SCANCODE_ALT_BREAK:
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ConsoleIn->Alt = FALSE;
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break;
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case SCANCODE_LEFT_SHIFT_MAKE:
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if (!Extended) {
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ConsoleIn->Shift = TRUE;
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ConsoleIn->LeftShift = TRUE;
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}
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break;
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case SCANCODE_RIGHT_SHIFT_MAKE:
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if (!Extended) {
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ConsoleIn->Shift = TRUE;
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ConsoleIn->RightShift = TRUE;
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if (!Extended1) {
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//
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// store the last available byte, this byte of scancode will be checked
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//
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ScanCode = ScancodeArr[ScancodeArrPos];
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//
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// Check for special keys and update the driver state.
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//
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switch (ScanCode) {
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case SCANCODE_CTRL_MAKE:
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ConsoleIn->Ctrl = TRUE;
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break;
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case SCANCODE_CTRL_BREAK:
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ConsoleIn->Ctrl = FALSE;
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break;
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case SCANCODE_ALT_MAKE:
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ConsoleIn->Alt = TRUE;
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break;
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case SCANCODE_ALT_BREAK:
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ConsoleIn->Alt = FALSE;
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break;
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case SCANCODE_LEFT_SHIFT_MAKE:
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if (!Extended) {
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ConsoleIn->Shift = TRUE;
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ConsoleIn->LeftShift = TRUE;
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}
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break;
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case SCANCODE_RIGHT_SHIFT_MAKE:
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if (!Extended) {
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ConsoleIn->Shift = TRUE;
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ConsoleIn->RightShift = TRUE;
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}
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break;
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case SCANCODE_LEFT_SHIFT_BREAK:
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if (!Extended) {
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ConsoleIn->Shift = FALSE;
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ConsoleIn->LeftShift = FALSE;
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} else {
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ConsoleIn->SysReq = FALSE;
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}
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break;
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case SCANCODE_RIGHT_SHIFT_BREAK:
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if (!Extended) {
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ConsoleIn->Shift = FALSE;
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ConsoleIn->RightShift = FALSE;
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}
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break;
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case SCANCODE_LEFT_LOGO_MAKE:
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ConsoleIn->LeftLogo = TRUE;
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break;
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case SCANCODE_LEFT_LOGO_BREAK:
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ConsoleIn->LeftLogo = FALSE;
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break;
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case SCANCODE_RIGHT_LOGO_MAKE:
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ConsoleIn->RightLogo = TRUE;
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break;
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case SCANCODE_RIGHT_LOGO_BREAK:
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ConsoleIn->RightLogo = FALSE;
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break;
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case SCANCODE_MENU_MAKE:
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ConsoleIn->Menu = TRUE;
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break;
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case SCANCODE_MENU_BREAK:
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ConsoleIn->Menu = FALSE;
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break;
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case SCANCODE_SYS_REQ_MAKE:
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if (Extended) {
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ConsoleIn->SysReq = TRUE;
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}
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break;
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case SCANCODE_CAPS_LOCK_MAKE:
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ConsoleIn->CapsLock = (BOOLEAN)!ConsoleIn->CapsLock;
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UpdateStatusLights (ConsoleIn);
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break;
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case SCANCODE_NUM_LOCK_MAKE:
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ConsoleIn->NumLock = (BOOLEAN)!ConsoleIn->NumLock;
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UpdateStatusLights (ConsoleIn);
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break;
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case SCANCODE_SCROLL_LOCK_MAKE:
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ConsoleIn->ScrollLock = (BOOLEAN)!ConsoleIn->ScrollLock;
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UpdateStatusLights (ConsoleIn);
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break;
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}
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break;
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case SCANCODE_LEFT_SHIFT_BREAK:
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if (!Extended) {
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ConsoleIn->Shift = FALSE;
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ConsoleIn->LeftShift = FALSE;
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//
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// If this is above the valid range, ignore it
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//
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if (ScanCode >= SCANCODE_MAX_MAKE) {
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continue;
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} else {
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ConsoleIn->SysReq = FALSE;
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}
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break;
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case SCANCODE_RIGHT_SHIFT_BREAK:
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if (!Extended) {
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ConsoleIn->Shift = FALSE;
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ConsoleIn->RightShift = FALSE;
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break;
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}
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break;
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case SCANCODE_LEFT_LOGO_MAKE:
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ConsoleIn->LeftLogo = TRUE;
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break;
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case SCANCODE_LEFT_LOGO_BREAK:
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ConsoleIn->LeftLogo = FALSE;
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break;
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case SCANCODE_RIGHT_LOGO_MAKE:
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ConsoleIn->RightLogo = TRUE;
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break;
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case SCANCODE_RIGHT_LOGO_BREAK:
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ConsoleIn->RightLogo = FALSE;
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break;
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case SCANCODE_MENU_MAKE:
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ConsoleIn->Menu = TRUE;
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break;
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case SCANCODE_MENU_BREAK:
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ConsoleIn->Menu = FALSE;
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break;
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case SCANCODE_SYS_REQ_MAKE:
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if (Extended) {
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ConsoleIn->SysReq = TRUE;
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}
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case SCANCODE_CAPS_LOCK_MAKE:
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ConsoleIn->CapsLock = (BOOLEAN)!ConsoleIn->CapsLock;
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UpdateStatusLights (ConsoleIn);
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break;
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case SCANCODE_NUM_LOCK_MAKE:
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ConsoleIn->NumLock = (BOOLEAN)!ConsoleIn->NumLock;
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UpdateStatusLights (ConsoleIn);
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break;
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case SCANCODE_SCROLL_LOCK_MAKE:
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ConsoleIn->ScrollLock = (BOOLEAN)!ConsoleIn->ScrollLock;
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UpdateStatusLights (ConsoleIn);
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break;
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}
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//
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// If this is a BREAK Key or above the valid range, ignore it
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//
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if (ScanCode >= SCANCODE_MAX_MAKE) {
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continue;
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} else {
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break;
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//
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// Store the last 2 available byte to check if it is Pause key
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//
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ScanCode = (UINT16) (ScancodeArr[ScancodeArrPos] + (ScancodeArr[ScancodeArrPos - 1] << 8));
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if (ScanCode == SCANCODE_PAUSE_MAKE) {
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break;
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}
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}
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}
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@ -182,6 +182,8 @@ InstallPs2KeyboardDriver (
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#define SCANCODE_SYS_REQ_MAKE 0x37
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#define SCANCODE_MAX_MAKE 0x60
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#define SCANCODE_PAUSE_MAKE 0x1D45
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#define KEYBOARD_STATUS_REGISTER_HAS_OUTPUT_DATA BIT0 ///< 0 - Output register has no data; 1 - Output register has data
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#define KEYBOARD_STATUS_REGISTER_HAS_INPUT_DATA BIT1 ///< 0 - Input register has no data; 1 - Input register has data
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#define KEYBOARD_STATUS_REGISTER_SYSTEM_FLAG BIT2 ///< Set to 0 after power on reset
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