KernelLand/Modules/Input/PS2KbMouse/kb.c

   1 /*
   2  * Acess2
   3  * PS2 Keyboard Driver
   4  */
   5 #include <acess.h>
   6 #include <modules.h>
   7 #include <fs_devfs.h>
   8 #include <api_drv_common.h>
   9 #include <api_drv_keyboard.h>
  10 #include <Input/Keyboard/include/keyboard.h>
  11 #include "kb_transtab.h"
  12
  13 // === CONSTANTS ===
  14 #define KB_BUFFER_SIZE  1024
  15 #define USE_KERNEL_MAGIC        1
  16
  17 // === PROTOTYPES ===
  18  int    KB_Install(char **Arguments);
  19 void    KB_HandleScancode(Uint8 scancode);
  20 void    KB_UpdateLEDs(void);
  21  int    KB_IOCtl(tVFS_Node *Node, int Id, void *Data);
  22
  23 // === GLOBALS ===
  24  int    giPS2Kb_Layer;
  25  int    gbPS2Kb_KeyUp;
  26 tKeyboard       *gPS2Kb_Info;
  27
  28 // === CODE ===
  29 /**
  30  * \brief Install the keyboard driver
  31  */
  32 int KB_Install(char **Arguments)
  33 {
  34         gPS2Kb_Info = Keyboard_CreateInstance(KEYSYM_RIGHTGUI, "PS2Keyboard");
  35         return MODULE_ERR_OK;
  36 }
  37
  38 /**
  39  * \brief Called on a keyboard IRQ
  40  * \param IRQNum        IRQ number (unused)
  41  */
  42 void KB_HandleScancode(Uint8 scancode)
  43 {
  44         Uint32  hidcode;
  45
  46         // Ignore ACKs
  47         if(scancode == 0xFA) return;
  48
  49         // Layer 1
  50         if(scancode == 0xE0) {
  51                 giPS2Kb_Layer = 1;
  52                 return;
  53         }
  54         // Layer 2
  55         if(scancode == 0xE1) {
  56                 giPS2Kb_Layer = 2;
  57                 return;
  58         }
  59
  60         #if KB_ALT_SCANCODES
  61         if(scancode == 0xF0)
  62         {
  63                 gbPS2Kb_KeyUp = 1;
  64                 return;
  65         }
  66         #else
  67         if(scancode & 0x80)
  68         {
  69                 scancode &= 0x7F;
  70                 gbPS2Kb_KeyUp = 1;
  71         }
  72         #endif
  73
  74         hidcode = gp101_to_HID[giPS2Kb_Layer][scancode];
  75         if( hidcode == 0)
  76         {
  77                 Log_Warning("PS2Kb", "Unknown scancode %i:0x%x %s", giPS2Kb_Layer, scancode,
  78                         gbPS2Kb_KeyUp ? "release" : "press"
  79                         );
  80         }
  81         else if( hidcode == -1 )
  82         {
  83                 // Ignored (Fake shift)
  84         }
  85         else
  86         {
  87                 if( gbPS2Kb_KeyUp )
  88                         Keyboard_HandleKey( gPS2Kb_Info, (1 << 31) | hidcode );
  89                 else
  90                         Keyboard_HandleKey( gPS2Kb_Info, (0 << 31) | hidcode );
  91         }
  92
  93         giPS2Kb_Layer = 0;
  94         gbPS2Kb_KeyUp = 0;
  95 }
  96
  97 /**
  98  * \fn void KB_UpdateLEDs(void)
  99  * \brief Updates the status of the keyboard LEDs
 100  */
 101 void KB_UpdateLEDs(void)
 102 {
 103 //      Uint8   leds;
 104
 105 //      leds = (gbKB_CapsState ? 4 : 0);
 106
 107         // TODO: Update LEDS
 108         Log_Warning("Keyboard", "TODO: Update LEDs");
 109 }
 110