[lcd4linux @ 2004-01-09 17:03:06 by reinelt]

initiated transfer to new driver architecture
new file 'drv.c' will someday replace 'display.c'
new file 'drv_MatrixOrbital.c' will replace 'MatrixOrbital.c'
due to this 'soft' transfer lcd4linux should stay usable during the switch
(at least I hope so)

git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@299 3ae390bd-cb1e-0410-b409-cd5a39f66f1f

1 files changed, 184 insertions, 0 deletions

diff --git a/drv.c b/drv.c
new file mode 100644
index 0000000..1356421
--- /dev/null
+++ b/drv.c
@@ -0,0 +1,184 @@
+/* $Id: drv.c,v 1.1 2004/01/09 17:03:07 reinelt Exp $
+ *
+ * new framework for display drivers
+ *
+ * Copyright 1999-2003 Michael Reinelt <reinelt@eunet.at>
+ * Copyright 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
+ *
+ * This file is part of LCD4Linux.
+ *
+ * LCD4Linux is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * LCD4Linux is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ * $Log: drv.c,v $
+ * Revision 1.1  2004/01/09 17:03:07  reinelt
+ * initiated transfer to new driver architecture
+ * new file 'drv.c' will someday replace 'display.c'
+ * new file 'drv_MatrixOrbital.c' will replace 'MatrixOrbital.c'
+ * due to this 'soft' transfer lcd4linux should stay usable during the switch
+ * (at least I hope so)
+ *
+ */
+
+/* 
+ * exported functions:
+ *
+ * drv_list (void)
+ *   lists all available drivers to stdout
+ *
+ * drv_init (char *driver)
+ *    initializes the named driver
+ *
+ * drv_query (int *rows, int *cols, int *xres, int *yres, int *bars, int *gpos)
+ *    queries the attributes of the selected driver
+ *
+ * drv_clear ()
+ *    clears the display
+ *
+ * int drv_put (int row, int col, char *text)
+ *    writes text at row, col
+ *
+ * int drv_bar (int type, int row, int col, int max, int len1, int len2)
+ *    draws a specified bar at row, col with len
+ *
+ * int drv_icon (int num, int seq, int row, int col)
+ *    draws icon #num sequence #seq at row, col
+ *
+ * int drv_gpo (int num, int val)
+ *    sets GPO #num to val
+ *
+ * int drv_flush (void)
+ *    flushes the framebuffer to the display
+ *
+ * int drv_quit (void)
+ *    de-initializes the driver
+ */
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "debug.h"
+#include "cfg.h"
+#include "drv.h"
+
+extern DRIVER drv_BeckmannEgle;
+extern DRIVER drv_Crystalfontz;
+extern DRIVER drv_Cwlinux;
+extern DRIVER drv_HD44780;
+extern DRIVER drv_M50530;
+extern DRIVER drv_T6963;
+extern DRIVER drv_USBDRIVER;
+extern DRIVER drv_MatrixOrbital;
+extern DRIVER drv_MilfordInstruments;
+extern DRIVER drv_PalmPilot;
+extern DRIVER drv_Raster;
+extern DRIVER drv_XWindow;
+extern DRIVER drv_Text;
+
+// output file for Raster driver
+// has to be defined here because it's referenced
+// even if the raster driver is not included!
+char *output=NULL;
+
+DRIVER *Driver[] = {
+#ifdef WITH_MATRIXORBITAL
+  &drv_MatrixOrbital,
+#endif
+  /* Fixme
+     #ifdef WITH_BECKMANNEGLE
+     &BeckmannEgle,
+     #endif
+     #ifdef WITH_CRYSTALFONTZ
+     &Crystalfontz,
+     #endif
+     #ifdef WITH_CWLINUX
+     &Cwlinux,
+     #endif
+     #ifdef WITH_HD44780
+     &HD44780,
+     #endif
+     #ifdef WITH_M50530
+     &M50530,
+     #endif
+     #ifdef WITH_T6963
+     &T6963,
+     #endif
+     #ifdef WITH_USBLCD
+     &USBLCD,
+     #endif
+     #ifdef WITH_MATRIXORBITAL
+     &MatrixOrbital,
+     #endif
+     #ifdef WITH_MILINST
+     &MilfordInstruments,
+     #endif
+     #ifdef WITH_PALMPILOT
+     &PalmPilot,
+     #endif
+     #if defined (WITH_PNG) || defined(WITH_PPM)
+     &Raster,
+     #endif
+     #ifdef WITH_X11
+     &XWindow,
+     #endif
+     #ifdef WITH_TEXT
+     &Text,
+     #endif
+  */
+  NULL,
+};
+
+
+static DRIVER *Lcd = NULL;
+
+
+int drv_list (void)
+{
+  int i;
+
+  printf ("available display drivers:");
+  
+  for (i=0; Driver[i]; i++) {
+    printf ("\n   %-20s: ", Driver[i]->name);
+    if (Driver[i]->list) Driver[i]->list();
+  }
+  printf ("\n");
+  return 0;
+}
+
+
+int drv_init (char *section, char *driver)
+{
+  int i;
+  for (i=0; Driver[i]; i++) {
+    if (strcmp (Driver[i]->name, driver)==0) {
+      Lcd=Driver[i];
+      if (Lcd->init==NULL) return 0;
+      return Lcd->init(Lcd);
+    }
+  }
+  error ("drv_init(%s) failed: no such driver", driver);
+  return -1;
+}
+
+
+int drv_quit (void)
+{
+  if (Lcd->quit==NULL) return 0;
+  return Lcd->quit();
+}