Kernel - Cleaning up a little (implemented MIN and MAX functions)
[tpg/acess2.git] / Modules / Input / PS2KbMouse / ps2mouse.c
index 7ccf461..e80a141 100644 (file)
@@ -6,28 +6,24 @@
 #include <modules.h>\r
 #include <vfs.h>\r
 #include <fs_devfs.h>\r
-#include <tpl_drv_common.h>\r
-#include <tpl_drv_joystick.h>\r
-\r
-static inline int MIN(int a, int b) { return (a < b) ? a : b; }\r
-static inline int MAX(int a, int b) { return (a > b) ? a : b; }\r
+#include <api_drv_common.h>\r
+#include <api_drv_joystick.h>\r
+#include "common.h"\r
 \r
 // == CONSTANTS ==\r
 #define NUM_AXIES      2       // X+Y\r
 #define NUM_BUTTONS    5       // Left, Right, Scroll Click, Scroll Up, Scroll Down\r
-#define PS2_IO_PORT    0x60\r
 \r
 // == PROTOTYPES ==\r
 // - Internal -\r
  int   PS2Mouse_Install(char **Arguments);\r
-void   PS2Mouse_IRQ(int Num);\r
-static void    mouseSendCommand(Uint8 cmd);\r
-void   PS2Mouse_Enable();\r
+void   PS2Mouse_HandleInterrupt(Uint8 InputByte);\r
 // - Filesystem -\r
 Uint64 PS2Mouse_Read(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer);\r
 int    PS2Mouse_IOCtl(tVFS_Node *Node, int ID, void *Data);\r
 \r
 // == GLOBALS ==\r
+void   (*gpMouse_EnableFcn)(void);\r
 // - Settings\r
  int   giMouse_Sensitivity = 1;\r
  int   giMouse_MaxX = 640, giMouse_MaxY = 480;\r
@@ -36,6 +32,9 @@ Uint8 gMouse_FileData[sizeof(tJoystick_FileHeader) + NUM_AXIES*sizeof(tJoystick_
 tJoystick_FileHeader   *gMouse_FileHeader = (void *)gMouse_FileData;\r
 tJoystick_Axis *gMouse_Axies;\r
 Uint8  *gMouse_Buttons;\r
+tJoystick_Callback     gMouse_Callback;\r
+ int   gMouse_CallbackArg;\r
+ int   giMouse_AxisLimits[2];\r
 // - Internal State\r
  int   giMouse_Cycle = 0;      // IRQ Position\r
 Uint8  gaMouse_Bytes[4] = {0,0,0,0};\r
@@ -51,14 +50,19 @@ tDevFS_Driver       gMouse_DriverStruct = {
 // == CODE ==\r
 int PS2Mouse_Install(char **Arguments)\r
 {\r
+       \r
+\r
        // Set up variables\r
-       gMouse_Axies = (void*)&gMouse_FileData[1];\r
+       gMouse_Axies = (void*)&gMouse_FileData[4];\r
        gMouse_Buttons = (void*)&gMouse_Axies[NUM_AXIES];\r
+\r
+       gMouse_FileHeader->NAxies = 2;  gMouse_FileHeader->NButtons = 3;\r
+       gMouse_Axies[0].MinValue = -10; gMouse_Axies[0].MaxValue = 10;\r
+       gMouse_Axies[1].MinValue = -10; gMouse_Axies[1].MaxValue = 10;\r
        \r
        // Initialise Mouse Controller\r
-       IRQ_AddHandler(12, PS2Mouse_IRQ);       // Set IRQ\r
        giMouse_Cycle = 0;      // Set Current Cycle position\r
-       PS2Mouse_Enable();              // Enable the mouse\r
+       gpMouse_EnableFcn();\r
        \r
        DevFS_AddDevice(&gMouse_DriverStruct);\r
        \r
@@ -67,15 +71,14 @@ int PS2Mouse_Install(char **Arguments)
 \r
 /* Handle Mouse Interrupt\r
  */\r
-void PS2Mouse_IRQ(int Num)\r
+void PS2Mouse_HandleInterrupt(Uint8 InputByte)\r
 {\r
        Uint8   flags;\r
-        int    dx, dy;\r
-        int    dx_accel, dy_accel;\r
-\r
+        int    d[2], d_accel[2];\r
+        int    i;\r
        \r
        // Gather mouse data\r
-       gaMouse_Bytes[giMouse_Cycle] = inb(0x60);\r
+       gaMouse_Bytes[giMouse_Cycle] = InputByte;\r
        LOG("gaMouse_Bytes[%i] = 0x%02x", gMouse_Axies[0].MaxValue);\r
        // - If bit 3 of the first byte is not set, it's not a valid packet?\r
        if(giMouse_Cycle == 0 && !(gaMouse_Bytes[0] & 0x08) )\r
@@ -95,25 +98,50 @@ void PS2Mouse_IRQ(int Num)
        if(flags & 0xC0)        return;\r
                \r
        // Calculate dX and dY\r
-       dx = gaMouse_Bytes[1];  if(flags & 0x10) dx = -(256-dx);\r
-       dy = gaMouse_Bytes[2];  if(flags & 0x20) dy = -(256-dy);\r
-       dy = -dy;       // Y is negated\r
-       LOG("RAW dx=%i, dy=%i\n", dx, dy);\r
+       d[0] = gaMouse_Bytes[1];        if(flags & 0x10) d[0] = -(256-d[0]);    // x\r
+       d[1] = gaMouse_Bytes[2];        if(flags & 0x20) d[1] = -(256-d[1]);    // y\r
+       d[1] = -d[1];   // Y is negated\r
+       LOG("RAW dx=%i, dy=%i\n", d[0], d[1]);\r
        // Apply scaling\r
        // TODO: Apply a form of curve to the mouse movement (dx*log(dx), dx^k?)\r
        // TODO: Independent sensitivities?\r
        // TODO: Disable acceleration via a flag?\r
-       dx_accel = dx*giMouse_Sensitivity;\r
-       dy_accel = dy*giMouse_Sensitivity;\r
+       d_accel[0] = d[0]*giMouse_Sensitivity;\r
+       d_accel[1] = d[1]*giMouse_Sensitivity;\r
        \r
        // Set Buttons (Primary)\r
-       gMouse_Buttons[0] = (flags & 1) ? 0xFF : 0;\r
-       gMouse_Buttons[1] = (flags & 2) ? 0xFF : 0;\r
-       gMouse_Buttons[2] = (flags & 4) ? 0xFF : 0;\r
+       for( i = 0; i < 3; i ++ )\r
+       {\r
+               Uint8   newVal = (flags & (1 << i)) ? 0xFF : 0;\r
+               if(newVal != gMouse_Buttons[i]) {\r
+                       if( gMouse_Callback )\r
+                               gMouse_Callback(gMouse_CallbackArg, 0, i, newVal - gMouse_Buttons[i]);\r
+                       gMouse_Buttons[i] = newVal;\r
+               }\r
+       }\r
        \r
        // Update X and Y Positions\r
-       gMouse_Axies[0].CurValue = MIN( MAX(gMouse_Axies[0].MinValue, gMouse_Axies[0].CurValue + dx_accel), gMouse_Axies[0].MaxValue );\r
-       gMouse_Axies[1].CurValue = MIN( MAX(gMouse_Axies[1].MinValue, gMouse_Axies[1].CurValue + dy_accel), gMouse_Axies[1].MaxValue );\r
+       for( i = 0; i < 2; i ++ )\r
+       {\r
+               Sint16  newCursor = 0;\r
+               if( giMouse_AxisLimits[i] )\r
+                       newCursor = MIN( MAX(0, gMouse_Axies[i].CursorPos + d_accel[i]), giMouse_AxisLimits[i] );;\r
+               \r
+               if( gMouse_Callback )\r
+               {\r
+                       if(giMouse_AxisLimits[i] && gMouse_Axies[i].CursorPos != newCursor)\r
+                               gMouse_Callback(gMouse_CallbackArg, 1, i, newCursor - gMouse_Axies[i].CursorPos);\r
+                       if(!giMouse_AxisLimits[i] && gMouse_Axies[i].CurValue != d_accel[i])\r
+                               gMouse_Callback(gMouse_CallbackArg, 1, i, d_accel[i] - gMouse_Axies[i].CurValue);\r
+               }\r
+               \r
+               gMouse_Axies[i].CurValue = d_accel[i];\r
+               gMouse_Axies[i].CursorPos = newCursor;\r
+       }\r
+\r
+//     Log("Mouse at %ix%i", gMouse_Axies[0].CursorPos, gMouse_Axies[1].CursorPos);\r
+               \r
+       VFS_MarkAvaliable(&gMouse_DriverStruct.RootNode, 1);\r
 }\r
 \r
 /* Read mouse state (coordinates)\r
@@ -125,7 +153,8 @@ Uint64 PS2Mouse_Read(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer
        if(Offset + Length > sizeof(gMouse_FileData))   Length = sizeof(gMouse_FileData) - Offset;\r
 \r
        memcpy(Buffer, &gMouse_FileData[Offset], Length);\r
-               \r
+       \r
+       VFS_MarkAvaliable(Node, 0);\r
        return Length;\r
 }\r
 \r
@@ -150,15 +179,15 @@ int PS2Mouse_IOCtl(tVFS_Node *Node, int ID, void *Data)
                if(!info)       return 0;\r
                if(info->Num < 0 || info->Num >= 2)     return 0;\r
                if(info->Value != -1)\r
-                       gMouse_Axies[info->Num].MaxValue = info->Value;\r
-               return gMouse_Axies[info->Num].MaxValue;\r
+                       giMouse_AxisLimits[info->Num] = info->Value;\r
+               return giMouse_AxisLimits[info->Num];\r
        \r
        case JOY_IOCTL_GETSETAXISPOSITION:\r
                if(!info)       return 0;\r
                if(info->Num < 0 || info->Num >= 2)     return 0;\r
                if(info->Value != -1)\r
-                       gMouse_Axies[info->Num].CurValue = info->Value;\r
-               return gMouse_Axies[info->Num].CurValue;\r
+                       gMouse_Axies[info->Num].CursorPos = info->Value;\r
+               return gMouse_Axies[info->Num].CursorPos;\r
 \r
        case JOY_IOCTL_GETSETAXISFLAGS:\r
                return -1;\r
@@ -171,47 +200,3 @@ int PS2Mouse_IOCtl(tVFS_Node *Node, int ID, void *Data)
        }\r
 }\r
 \r
-//== Internal Functions ==\r
-static inline void mouseOut64(Uint8 data)\r
-{\r
-       int timeout=100000;\r
-       while( timeout-- && inb(0x64) & 2 );    // Wait for Flag to clear\r
-       outb(0x64, data);       // Send Command\r
-}\r
-static inline void mouseOut60(Uint8 data)\r
-{\r
-       int timeout=100000;\r
-       while( timeout-- && inb(0x64) & 2 );    // Wait for Flag to clear\r
-       outb(0x60, data);       // Send Command\r
-}\r
-static inline Uint8 mouseIn60(void)\r
-{\r
-       int timeout=100000;\r
-       while( timeout-- && (inb(0x64) & 1) == 0);      // Wait for Flag to set\r
-       return inb(0x60);\r
-}\r
-static inline void mouseSendCommand(Uint8 cmd)\r
-{\r
-       mouseOut64(0xD4);\r
-       mouseOut60(cmd);\r
-}\r
-\r
-void PS2Mouse_Enable(void)\r
-{\r
-       Uint8   status;\r
-       Log_Log("PS2Mouse", "Enabling Mouse...");\r
-       \r
-       // Enable AUX PS/2\r
-       mouseOut64(0xA8);\r
-       \r
-       // Enable AUX PS/2 (Compaq Status Byte)\r
-       mouseOut64(0x20);       // Send Command\r
-       status = mouseIn60();   // Get Status\r
-       status &= ~0x20;        // Clear "Disable Mouse Clock"\r
-       status |= 0x02;         // Set IRQ12 Enable\r
-       mouseOut64(0x60);       // Send Command\r
-       mouseOut60(status);     // Set Status\r
-       \r
-       //mouseSendCommand(0xF6);       // Set Default Settings\r
-       mouseSendCommand(0xF4); // Enable Packets\r
-}\r

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