[lcd4linux @ 2000-05-02 06:05:00 by reinelt]

driver for 3Com Palm Pilot added

1 files changed, 288 insertions, 0 deletions

diff --git a/PalmPilot.c b/PalmPilot.c
new file mode 100644
index 0000000..68c35fa
--- /dev/null
+++ b/PalmPilot.c
@@ -0,0 +1,288 @@
+/* $Id: PalmPilot.c,v 1.1 2000/05/02 06:05:00 reinelt Exp $
+ *
+ * driver for 3Com Palm Pilot
+ *
+ * Copyright 2000 by Michael Reinelt (reinelt@eunet.at)
+ *
+ * This program 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.
+ *
+ * This program 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: PalmPilot.c,v $
+ * Revision 1.1  2000/05/02 06:05:00  reinelt
+ *
+ * driver for 3Com Palm Pilot added
+ *
+ */
+
+/* 
+ *
+ * exported fuctions:
+ *
+ * struct LCD PalmPilot[]
+ *
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <signal.h>
+#include <errno.h>
+#include <termios.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include "debug.h"
+#include "cfg.h"
+#include "lock.h"
+#include "display.h"
+#include "pixmap.h"
+
+#define BARS ( BAR_L | BAR_R | BAR_U | BAR_D | BAR_H2 | BAR_V2 )
+
+static LCD Lcd;
+static char *Port=NULL;
+static speed_t Speed;
+static int Device=-1;
+
+static int pixel=-1;
+static int pgap=0;
+static int rgap=0;
+static int cgap=0;
+static int border=0;
+
+static int Palm_open (void)
+{
+  int fd;
+  pid_t pid;
+  struct termios portset;
+  
+  if ((pid=lock_port(Port))!=0) {
+    if (pid==-1)
+      fprintf (stderr, "PalmPilot: port %s could not be locked\n", Port);
+    else
+      fprintf (stderr, "PalmPilot: port %s is locked by process %d\n", Port, pid);
+    return -1;
+  }
+  fd = open(Port, O_RDWR | O_NOCTTY | O_NDELAY); 
+  if (fd==-1) {
+    fprintf (stderr, "PalmPilot: open(%s) failed: %s\n", Port, strerror(errno));
+    return -1;
+  }
+  if (tcgetattr(fd, &portset)==-1) {
+    fprintf (stderr, "PalmPilot: tcgetattr(%s) failed: %s\n", Port, strerror(errno));
+    return -1;
+  }
+  cfmakeraw(&portset);
+  cfsetospeed(&portset, Speed);
+  if (tcsetattr(fd, TCSANOW, &portset)==-1) {
+    fprintf (stderr, "PalmPilot: tcsetattr(%s) failed: %s\n", Port, strerror(errno));
+    return -1;
+  }
+  return fd;
+}
+
+static void Palm_write (char *string, int len)
+{
+  if (Device==-1) return;
+  if (write (Device, string, len)==-1) {
+    if (errno==EAGAIN) {
+      usleep(1000);
+      if (write (Device, string, len)>=0) return;
+    }
+    fprintf (stderr, "PalmPilot: write(%s) failed: %s\n", Port, strerror(errno));
+  }
+}
+
+int Palm_flush (void)
+{
+  static unsigned char *bitbuf=NULL;
+  static unsigned char *rowbuf=NULL;
+  int xsize, ysize, row, col;
+
+  xsize=2*border+(Lcd.cols-1)*cgap+Lcd.cols*Lcd.xres*pixel+(Lcd.cols*Lcd.xres-1)*pgap;
+  ysize=2*border+(Lcd.rows-1)*rgap+Lcd.rows*Lcd.yres*pixel+(Lcd.rows*Lcd.yres-1)*pgap;
+  
+  if (bitbuf==NULL) {
+    if ((bitbuf=malloc(xsize*ysize*sizeof(*bitbuf)))==NULL) {
+      fprintf (stderr, "PalmPilot: malloc(%d) failed: %s\n", xsize*ysize*sizeof(*bitbuf), strerror(errno));
+      return -1;
+    }
+  }
+  
+  if (rowbuf==NULL) {
+    if ((rowbuf=malloc(((xsize+7)/8)*sizeof(*rowbuf)))==NULL) {
+      fprintf (stderr, "PalmPilot: malloc(%d) failed: %s\n", ((xsize+7)/8)*sizeof(*rowbuf), strerror(errno));
+      return -1;
+    }
+  }
+  
+  memset (bitbuf, 0, xsize*ysize*sizeof(*bitbuf));
+  
+  for (row=0; row<Lcd.rows*Lcd.yres; row++) {
+    int y=border+(row/Lcd.yres)*rgap+row*(pixel+pgap);
+    for (col=0; col<Lcd.cols*Lcd.xres; col++) {
+      int x=border+(col/Lcd.xres)*cgap+col*(pixel+pgap);
+      int a, b;
+      for (a=0; a<pixel; a++)
+	for (b=0; b<pixel; b++)
+	  bitbuf[y*xsize+x+a*xsize+b]=LCDpixmap[row*Lcd.cols*Lcd.xres+col];
+    }
+  }
+  
+  sprintf (rowbuf, "%c%c", xsize, ysize);
+  Palm_write (rowbuf, 2);
+
+  for (row=0; row<ysize; row++) {
+    memset (rowbuf, 0, (xsize+7)/8);
+    for (col=0; col<xsize; col++) {
+      rowbuf[col/8]<<=1;
+      rowbuf[col/8]|=bitbuf[row*xsize+col];
+    }
+    rowbuf[xsize/8]<<=(8-xsize%8)&7;
+    Palm_write (rowbuf, (xsize+7)/8);
+  }
+  
+  return 0;
+}
+
+int Palm_clear (void)
+{
+  if (pix_clear()!=0) 
+    return -1;
+  
+  return Palm_flush();
+}
+
+static void Palm_quit (int signal); //forward declaration
+
+int Palm_init (LCD *Self)
+{
+  char *port, *speed, *s;
+  int rows=-1, cols=-1;
+  int xres=1, yres=-1;
+
+  if (Port) {
+    free (Port);
+    Port=NULL;
+  }
+
+  port=cfg_get ("Port");
+  if (port==NULL || *port=='\0') {
+    fprintf (stderr, "PalmPilot: no 'Port' entry in %s\n", cfg_file());
+    return -1;
+  }
+  Port=strdup(port);
+
+  speed=cfg_get("Speed")?:"19200";
+  
+  switch (atoi(speed)) {
+  case 1200:
+    Speed=B1200;
+    break;
+  case 2400:
+    Speed=B2400;
+    break;
+  case 4800:
+    Speed=B4800;
+    break;
+  case 9600:
+    Speed=B9600;
+    break;
+  case 19200:
+    Speed=B19200;
+    break;
+  default:
+    fprintf (stderr, "PalmPilot: unsupported speed '%s' in %s\n", speed, cfg_file());
+    return -1;
+  }    
+
+  debug ("using port %s at %d baud\n", Port, atoi(speed));
+
+  if (sscanf(s=cfg_get("size")?:"20x4", "%dx%d", &cols, &rows)!=2 || rows<1 || cols<1) {
+    fprintf (stderr, "PalmPilot: bad size '%s'\n", s);
+    return -1;
+  }
+
+  if (sscanf(s=cfg_get("font")?:"6x8", "%dx%d", &xres, &yres)!=2 || xres<5 || yres<7) {
+    fprintf (stderr, "PalmPilot: bad font '%s'\n", s);
+    return -1;
+  }
+
+  if (sscanf(s=cfg_get("pixel")?:"1+0", "%d+%d", &pixel, &pgap)!=2 || pixel<1 || pgap<0) {
+    fprintf (stderr, "PalmPilot: bad pixel '%s'\n", s);
+    return -1;
+  }
+
+  if (sscanf(s=cfg_get("gap")?:"0x0", "%dx%d", &cgap, &rgap)!=2 || cgap<-1 || rgap<-1) {
+    fprintf (stderr, "PalmPilot: bad gap '%s'\n", s);
+    return -1;
+  }
+  if (rgap<0) rgap=pixel+pgap;
+  if (cgap<0) cgap=pixel+pgap;
+
+  border=atoi(cfg_get("border")?:"0");
+
+  if (pix_init (rows, cols, xres, yres)!=0) {
+    fprintf (stderr, "PalmPilot: pix_init(%d, %d, %d, %d) failed\n", rows, cols, xres, yres);
+    return -1;
+  }
+
+  Self->rows=rows;
+  Self->cols=cols;
+  Self->xres=xres;
+  Self->yres=yres;
+  Lcd=*Self;
+
+  // Device=open ("PalmOrb.dat", O_WRONLY | O_CREAT | O_TRUNC, 0644);
+  Device=Palm_open();
+  if (Device==-1) return -1;
+
+  pix_clear();
+
+  signal(SIGINT,  Palm_quit);
+  signal(SIGQUIT, Palm_quit);
+  signal(SIGTERM, Palm_quit);
+
+  return 0;
+}
+
+int Palm_put (int row, int col, char *text)
+{
+  return pix_put (row, col, text);
+}
+
+int Palm_bar (int type, int row, int col, int max, int len1, int len2)
+{
+  return pix_bar (type, row, col, max, len1, len2);
+}
+
+int lcd_hello (void); // prototype from lcd4linux.c
+
+static void Palm_quit (int signal)
+{
+  debug ("got signal %d\n", signal);
+  Palm_clear();
+  lcd_hello();
+  close (Device);
+  unlock_port (Port);
+  exit (0);
+}
+
+LCD PalmPilot[] = {
+  { "PalmPilot", 0, 0, 0, 0, BARS, Palm_init, Palm_clear, Palm_put, Palm_bar, Palm_flush },
+  { NULL }
+};