X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=AcessNative%2Facesskernel_src%2Fmouse.c;h=0ff9e8a8d7b40a6fd77a3843eebdecd168ae4f93;hb=1b9e758fbf856934974e847c3d5b348d237a0001;hp=e69de29bb2d1d6434b8b29ae775ad8c2e48c5391;hpb=b5a1402b18d2f8cb360bf2fc524609b374bac8ec;p=tpg%2Facess2.git

diff --git a/AcessNative/acesskernel_src/mouse.c b/AcessNative/acesskernel_src/mouse.c
index e69de29b..0ff9e8a8 100644
--- a/AcessNative/acesskernel_src/mouse.c
+++ b/AcessNative/acesskernel_src/mouse.c
@@ -0,0 +1,170 @@
+/*
+ * Acess2 Kernel - Mouse Mulitplexing Driver
+ * - By John Hodge (thePowersGang)
+ *
+ * main.c
+ * - Mouse mulitplexing
+ */
+#define DEBUG	0
+#define VERSION	VER2(0,1)
+#include <acess.h>
+#include <modules.h>
+#include <fs_devfs.h>
+#include "include/mouse_int.h"
+
+// === PROTOTYPES ===
+ int	Mouse_Install(char **Arguments);
+ int	Mouse_Cleanup(void);
+// - "User" side
+ int	Mouse_Root_ReadDir(tVFS_Node *Node, int Pos, char Dest[FILENAME_MAX]);
+tVFS_Node	*Mouse_Root_FindDir(tVFS_Node *Node, const char *Name);
+ int	Mouse_Dev_IOCtl(tVFS_Node *Node, int ID, void *Data);
+size_t	Mouse_Dev_Read(tVFS_Node *Node, off_t Offset, size_t Length, void *Data);
+// - Device Side
+void	Mouse_HandleEvent(Uint32 ButtonState, int *AxisDeltas, int *AxisValues);
+
+// === GLOBALS ===
+tVFS_NodeType	gMouse_RootNodeType = {
+	.ReadDir = Mouse_Root_ReadDir,
+	.FindDir = Mouse_Root_FindDir
+};
+tVFS_NodeType	gMouse_DevNodeType = {
+	.IOCtl = Mouse_Dev_IOCtl,
+	.Read = Mouse_Dev_Read
+};
+tDevFS_Driver	gMouse_DevInfo = {
+	NULL, "Mouse",
+	{ .Flags = VFS_FFLAG_DIRECTORY, .Type = &gMouse_RootNodeType, .Size = 1 }
+};
+tPointer	gMouse_Pointer;
+
+// === CODE ===
+/**
+ * \brief Initialise the keyboard driver
+ */
+int Mouse_Install(char **Arguments)
+{
+	/// - Register with DevFS
+	DevFS_AddDevice( &gMouse_DevInfo );
+
+	gMouse_Pointer.Node.Type = &gMouse_DevNodeType;
+	gMouse_Pointer.Node.ImplPtr = &gMouse_Pointer;
+	gMouse_Pointer.FileHeader = (void*)gMouse_Pointer.FileData;
+	gMouse_Pointer.Axies = (void*)( gMouse_Pointer.FileHeader + 1 );
+	gMouse_Pointer.Buttons = (void*)( gMouse_Pointer.Axies + MAX_AXIES );
+	gMouse_Pointer.FileHeader->NAxies = MAX_AXIES;
+	gMouse_Pointer.FileHeader->NButtons = MAX_BUTTONS;
+
+	return 0;
+}
+
+/**
+ * \brief Pre-unload cleanup function
+ */
+int Mouse_Cleanup(void)
+{
+	return 0;
+}
+
+// --- VFS Interface ---
+int Mouse_Root_ReadDir(tVFS_Node *Node, int Pos, char Dest[FILENAME_MAX])
+{
+	if( Pos != 0 )
+		return -EINVAL;
+	strcpy(Dest, "system");
+	return 0;
+}
+
+tVFS_Node *Mouse_Root_FindDir(tVFS_Node *Node, const char *Name)
+{
+	if( strcmp(Name, "system") != 0 )	return NULL;
+	return &gMouse_Pointer.Node;
+}
+
+static const char *csaIOCTL_NAMES[] = {DRV_IOCTLNAMES, DRV_JOY_IOCTLNAMES, NULL};
+/**
+ * \brief IOCtl handler for the mouse
+ */
+int Mouse_Dev_IOCtl(tVFS_Node *Node, int ID, void *Data)
+{
+	tJoystick_NumValue	*numval = Data;
+	tPointer	*ptr = Node->ImplPtr;
+	switch(ID)
+	{
+	BASE_IOCTLS(DRV_TYPE_MOUSE, "Mouse", VERSION, csaIOCTL_NAMES);
+
+	case JOY_IOCTL_GETSETAXISLIMIT:
+		if( !numval || !CheckMem(numval, sizeof(*numval)) )
+			return -1;
+		LOG("GetSetAxisLimit %i = %i", numval->Num, numval->Value);
+		if(numval->Num < 0 || numval->Num >= ptr->FileHeader->NAxies)
+			return 0;
+		if(numval->Value != -1)
+			ptr->AxisLimits[numval->Num] = numval->Value;
+		return ptr->AxisLimits[numval->Num];
+
+	case JOY_IOCTL_GETSETAXISPOSITION:
+		if( !numval || !CheckMem(numval, sizeof(*numval)) )
+			return -1;
+		if(numval->Num < 0 || numval->Num >= ptr->FileHeader->NAxies)
+			return 0;
+		if(numval->Value != -1)
+			ptr->Axies[numval->Num].CursorPos = numval->Value;
+		return ptr->Axies[numval->Num].CursorPos;
+	}
+	return -1;
+}
+
+/**
+ * \brief Read from a device
+ */
+size_t Mouse_Dev_Read(tVFS_Node *Node, off_t Offset, size_t Length, void *Data)
+{
+	tPointer *ptr = Node->ImplPtr;
+	 int	n_buttons = ptr->FileHeader->NButtons;
+	 int	n_axies = ptr->FileHeader->NAxies;
+
+	ENTER("pNode iLength pData", Node, Length, Data);
+
+	// TODO: Locking (Acquire)
+
+	Length = MIN(
+		Length, 
+		sizeof(tJoystick_FileHeader) + n_axies*sizeof(tJoystick_Axis) + n_buttons
+		);
+
+	// Mark as checked
+	VFS_MarkAvaliable( Node, 0 );
+
+	memcpy( Data, ptr->FileData, Length );
+
+	// TODO: Locking (Release)
+
+	LEAVE('i', Length);
+	return Length;
+}
+
+// --- Device Interface ---
+/*
+ * Handle a mouse event (movement or button press/release)
+ * - See Input/Mouse/include/mouse.h
+ */
+void Mouse_HandleEvent(Uint32 ButtonState, int *AxisDeltas, int *AxisValues)
+{
+	tPointer *ptr = &gMouse_Pointer;
+	
+	ENTER("pHandle xButtonState pAxisDeltas", Handle, ButtonState, AxisDeltas);
+
+	// Update cursor position
+	for( int i = 0; i < 2; i ++ )
+	{
+		ptr->Axies[i].CursorPos = AxisValues[i];
+		ptr->Axies[i].CurValue = AxisDeltas ? AxisDeltas[i] : 0;
+	}
+	for( int i = 0; i < 5; i ++ )
+		ptr->Buttons[i] = ButtonState & (1 << i) ? 255 : 0;
+
+	VFS_MarkAvaliable( &ptr->Node, 1 );
+	LEAVE('-');
+}
+