v0.5 kick-off

server/drivers/hd44780-low.h

@@ -6,40 +6,124 @@
 
 enum ifWidth { IF_4bit, IF_8bit };
 
-//void common_init (enum ifWidth ifwidth);
-void common_init ();
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+# if TIME_WITH_SYS_TIME
+#  include <sys/time.h>
+#  include <time.h>
+# else
+#  if HAVE_SYS_TIME_H
+#   include <sys/time.h>
+#  else
+#   include <time.h>
+#  endif
+# endif
+
+
+//struct hwDependentFns;
+
+// Maximum sizes of the keypad
+// DO NOT CHANGE THESE 2 VALUES, unless you change the functions too
+#define KEYPAD_MAXX 5
+#define KEYPAD_MAXY 11
+
+typedef struct ConnectionMapping {
+	char *name;
+	int (*init_fn) (Driver *drvthis);
+	const char *helpMsg;
+} ConnectionMapping;
+
+typedef struct driver_private_data {
+
+	unsigned int port;
+
+	int width, height;
+	int cellwidth, cellheight;
+
+	// The framebuffer
+	char *framebuf;
+
+	// For incremental updates store last lcd contents
+	char *lcd_contents;
+
+	// Connection type data
+	int connectiontype_index;
+	struct hwDependentFns *hd44780_functions;
+
+	// spanList[line number] = display line number is in
+	int *spanList;
+	int numLines;
+
+	// dispVOffset is a cumulative sized array of line numbers for each display.
+	// use this to determine the vertical positioning on a given display
+	int *dispVOffset;
+	int numDisplays;
+
+	// dispSizes is the vertical size of each display. This is the same as the
+	// input span list but is kept to save some cpu cycles.
+	int *dispSizes;
+
+	// Keypad, backlight extended interface and delay options
+	char have_keypad;	 // off by default
+	char have_backlight; // off by default
+	char extIF;		 // off by default
+	int delayMult;	 // Delay multiplier for slow displays
+	char delayBus;	 // Delay if the computer can send data too fast over
+				 // its bus to LPT port
+
+	// keyMapDirect contains an array of the ascii-codes that should be generated
+	// when a directly connected key is pressed (not in matrix).
+	char *keyMapDirect[KEYPAD_MAXX];
+
+	// keyMapMatrix contrains an array with arrays of the ascii-codes that should be generated
+	// when a key in the matrix is pressed.
+	char *keyMapMatrix[KEYPAD_MAXY][KEYPAD_MAXX];
+
+	char pressed_key;
+	int pressed_key_repetitions;
+	struct timeval pressed_key_time;
+
+	int stuckinputs;
+
+	int backlight_bit;
+
+} PrivateData;
 
 // Structures holding pointers to HD44780 specific functions
 typedef struct hwDependentFns {
 	// microsec pauses
-	void (*uPause) (int microSecondsTenths);
+	void (*uPause) (PrivateData *p, int usecs);
 
 	// Senddata to the LCD
 	// dispID     - display to send data to (0 = all displays)
 	// flags      - data or instruction command (RS_DATA | RS_INSTR)
 	// ch	      - character to display or instruction value
-	void (*senddata) (unsigned char dispID, unsigned char flags, unsigned char ch);
+	void (*senddata) (PrivateData *p, unsigned char dispID, unsigned char flags, unsigned char ch);
 
 	// Switch the backlight on or off
 	// state      - to be or not to be on
-	void (*backlight) (unsigned char state);
+	void (*backlight) (PrivateData *p, unsigned char state);
 
 	// Read the keypad
 	// Ydata      - the up to 11 bits that should be put on the Y side of the matrix
 	// return     - the up to 5 bits that are read out on the X side of the matrix
-	unsigned char (*readkeypad) (unsigned int Ydata);
+	unsigned char (*readkeypad) (PrivateData *p, unsigned int Ydata);
 
 	// Scan the keypad and return a scancode.
 	// The code is the Yvalue in the high nibble and the Xvalue in the low nibble.
 	// A subdriver should do only one of two things:
 	// - set readkeypad; or
 	// - override scankeypad.
-	unsigned char (*scankeypad) ();
+	unsigned char (*scankeypad) (PrivateData *p);
 
 
 } HD44780_functions;				  /* for want of a better name :-) */
 
-extern HD44780_functions *hd44780_functions;
+
+void common_init (PrivateData *p);
+
 
 // commands for senddata
 #define RS_DATA     0x00