Adding upstream version 4.6.2.upstream/4.6.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 319 insertions, 0 deletions

diff --git a/braille_tsi.c b/braille_tsi.c
new file mode 100644
index 0000000..6f84913
--- /dev/null
+++ b/braille_tsi.c
@@ -0,0 +1,319 @@
+/*    bd-tsi.c, TSI specific key bindings and display commands
+ *
+ *	dotscreen
+ *	A braille interface to unix tty terminals
+ *      Authors:  Hadi Bargi Rangin  bargi@dots.physics.orst.edu
+ *                Bill Barry         barryb@dots.physics.orst.edu
+ *
+ * Copyright (c) 1995 by Science Access Project, Oregon State University.
+ *      
+ *
+ * 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 3, 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 (see the file COPYING); if not, see
+ * http://www.gnu.org/licenses/, or contact Free Software Foundation, Inc., 
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02111-1301  USA
+ *
+ ****************************************************************
+ */
+
+#include "config.h"
+#include "screen.h"
+#include "extern.h"
+#include "braille.h"
+
+#ifdef HAVE_BRAILLE
+
+extern struct display *display;
+
+struct key2rc {
+  int key;
+  int nr;
+  char *arg1;
+  char *arg2;
+};
+
+
+static int tsi_ctype = 1;        /* cursor type, 0,1,2 */
+
+static int tsi_line_type; /* indicates number of cells on powerbraille
+                          display 01=20 cells 02=40 cells 03=80 cells */
+
+static int  display_status_tsi __P((void));
+static int  write_line_tsi __P((char *, int, int));
+static void buttonpress_tsi __P((struct key2rc *));
+static void buttonpress_navigator_40 __P((void));
+static void buttonpress_powerbraille_40 __P((void));
+static void buttonpress_powerbraille_80 __P((void));
+
+int
+bd_init_powerbraille_40()
+{
+  bd.write_line_braille = write_line_tsi;
+  bd.buttonpress = buttonpress_powerbraille_40;
+  bd.bd_response_test = display_status_tsi;
+  bd.bd_ncells = 40;
+  tsi_line_type = 2;
+  return 0;
+}
+
+int
+bd_init_powerbraille_80()
+{
+  bd.write_line_braille = write_line_tsi;
+  bd.buttonpress = buttonpress_powerbraille_80;
+  bd.bd_response_test = display_status_tsi;
+  bd.bd_ncells = 80;
+  tsi_line_type = 3;
+  return 0;
+}
+
+int
+bd_init_navigator_40()
+{
+  bd.write_line_braille = write_line_tsi;
+  bd.buttonpress = buttonpress_navigator_40;
+  bd.bd_response_test = display_status_tsi;
+  bd.bd_ncells = 40;
+  tsi_line_type = 2;
+  return 0;
+}
+
+static int 
+display_status_tsi()
+{
+  char obuf[3],ibuf[20];
+  int r;
+
+  obuf[0] = 0xff;
+  obuf[1] = 0xff;
+  obuf[2] = 0x0a;
+  r = read(bd.bd_fd, ibuf, 20);		/* flush the input port */
+  r = write(bd.bd_fd, obuf, 3);
+  if (r != 3)
+    return -1;
+
+  /* we have written to the display asking for a response
+     we wait 1 second for the response, read it and if no 
+     response we wait 2 seconds, if still no response,
+     return -1 to indicate no braille  display available */
+  sleep(1);
+  r = read(bd.bd_fd, ibuf, 2);
+  if (r == -1)
+    {
+      sleep(2);
+      r = read(bd.bd_fd, ibuf, 2);
+    }
+  debug2("first chars from braille display %d %d\n",ibuf[0],ibuf[1]);
+  if (r != 2 || ibuf[0] != 0 || ibuf[1] != 5)
+    return -1;
+  
+  r= read(bd.bd_fd,ibuf,2);
+  if (r != 2)
+    return -1;
+  debug2("braille display size:%d dots:%d\n", ibuf[0], ibuf[1]);
+  bd.bd_ncells = (unsigned char)ibuf[0];
+  if (bd.bd_ncells <= 1)
+    return -1;
+  r = read(bd.bd_fd,ibuf,1);
+  if (r != 1)
+    return -1;
+  if (ibuf[0] == 'V')
+    r = read(bd.bd_fd, ibuf, 3);
+  else
+    r = read(bd.bd_fd, ibuf + 1, 2) + 1;
+  if (r != 3)
+    return -1;
+  ibuf[3] = 0;
+  debug1("braille display version %s\n", ibuf); 
+  bd.bd_version = atof(ibuf);
+  return 0;
+}
+		
+
+static int 
+write_line_tsi (bstr,line_length,  cursor_pos) 
+char *bstr;
+int line_length, cursor_pos; 
+{
+  int obp, i;
+  bd.bd_obuf[0] = 0xff;
+  bd.bd_obuf[1] = 0xff;
+  bd.bd_obuf[2] = tsi_line_type;
+  bd.bd_obuf[3] = 0x07;
+  bd.bd_obuf[4] = cursor_pos;
+  bd.bd_obuf[5] = tsi_ctype;
+  obp=6;
+
+  for (i=0; i < line_length; i++) 
+    {
+      bd.bd_obuf[2*i+obp] = 0; 
+      bd.bd_obuf[2*i+1+obp] = bd.bd_btable[(int)(unsigned char)bstr[i]];
+    }      
+  for (i=line_length; i < bd.bd_ncells; i++) 
+    {
+      bd.bd_obuf[2*i+obp] = 0; 
+      bd.bd_obuf[2*i+1+obp] = bd.bd_btable[(int)' '];
+    }      
+
+  bd.bd_obuflen = 2*bd.bd_ncells + obp ;  
+  return 0;
+}
+
+static struct key2rc keys_navigator_40[] = {
+  {0x4000000,	RC_STUFF, "-k", "kl"},		/* 1 */
+  {0x10000000, 	RC_STUFF, "-k", "kr"},		/* 3 */
+  {0x8000000,	RC_STUFF, "-k", "ku"},		/* 2 */
+  {0x20000000,	RC_STUFF, "-k", "kd"},		/* 4 */
+  {0x2000,	RC_BD_BC_LEFT, 0, 0},		/* 6 */
+  {0x8000,	RC_BD_BC_RIGHT, 0, 0},		/* 8 */
+  {0x4000,	RC_BD_BC_UP, 0, 0},		/* 7 */
+  {0x10000,	RC_BD_BC_DOWN, 0, 0},		/* 9 */
+  {0x6000,	RC_BD_UPPER_LEFT, 0, 0},	/* 6, 7 */
+  {0xc000,	RC_BD_UPPER_RIGHT, 0, 0},	/* 7, 8 */
+  {0x12000,	RC_BD_LOWER_LEFT, 0, 0},	/* 6, 9 */
+  {0x18000,	RC_BD_LOWER_RIGHT, 0, 0},	/* 8, 9 */
+  {0xa000,	RC_BD_INFO, "1032", 0},		/* bc 6, 8 */
+  {0x14000000,	RC_BD_INFO, "2301", 0},		/* sc 1, 3 */
+  {0x4008000,	RC_BD_INFO, "3330", 0},		/* bc+sc 1, 8 */
+  {0x8010000,	RC_BD_BELL, 0, 0},		/* 2, 9 */
+  {0x8004000,	RC_BD_EIGHTDOT, 0, 0},		/* 2, 7 */
+  {0x40000000,	RC_STUFF, "\015", 0},		/* 5 */
+  {0x20000,	RC_BD_LINK, 0, 0},		/* 10 */
+  {0x10002000,	RC_BD_SCROLL, 0, 0},		/* 3, 6 */
+  {0x20010000,	RC_BD_NCRC, "+", 0},		/* 4, 9 */
+  {0x14000,	RC_BD_SKIP, 0, 0},		/* 7, 9*/
+  {-1,		RC_ILLEGAL, 0, 0}
+};
+
+static struct key2rc keys_powerbraille_40[] = {
+  {0x4000000,	RC_STUFF, "-k", "kl"},		/* 1 */
+  {0x10000000, 	RC_STUFF, "-k", "kr"},		/* 3 */
+  {0x8000000,	RC_STUFF, "-k", "ku"},		/* 2 */
+  {0x20000000,	RC_STUFF, "-k", "kd"},		/* 4 */
+  {0x2000,	RC_BD_BC_LEFT, 0, 0},		/* 6 */
+  {0x8000,	RC_BD_BC_RIGHT, 0, 0},		/* 8 */
+  {0x4000,	RC_BD_BC_UP, 0, 0},		/* 7 */
+  {0x10000,	RC_BD_BC_DOWN, 0, 0},		/* 9 */
+  {0x8002000,	RC_BD_UPPER_LEFT, 0, 0},	/* 2, 6 */
+  {0xc000,	RC_BD_UPPER_RIGHT, 0, 0},	/* 7, 8 */
+  {0x20002000,	RC_BD_LOWER_LEFT, 0, 0},	/* 3, 6 */
+  {0x18000,	RC_BD_LOWER_RIGHT, 0, 0},	/* 8, 9 */
+  {0x8008000,	RC_BD_INFO, "1032", 0},		/* bc 2, 8 */
+  {0x6000,	RC_BD_INFO, "2301", 0},		/* 6, 7 */
+  {0x8004000,	RC_BD_INFO, "3330", 0},		/* bc+sc 2, 7 */
+  {0x8010000,	RC_BD_BELL, 0, 0},		/* 2, 9 */
+  {0x20008000,	RC_BD_EIGHTDOT, 0, 0},		/* 4, 6 */
+  {0x40000000,	RC_STUFF, "\015", 0},		/* 5 */
+  {0x20000,	RC_BD_LINK, 0, 0},		/* 10 */
+  {0xa000,	RC_BD_SCROLL, 0, 0},		/* 6, 8 */
+  {0x20010000,	RC_BD_NCRC, "+", 0},		/* 4, 9 */
+  {0x20004000,	RC_BD_SKIP, 0, 0},		/* 4, 7 */
+  {-1,		RC_ILLEGAL, 0, 0}
+};
+
+
+static struct key2rc keys_powerbraille_80[] = {
+  {0x4000000,	RC_STUFF, "-k", "kl"},		/* 1 */
+  {0x10000000, 	RC_STUFF, "-k", "kr"},		/* 3 */
+  {0x8000000,	RC_STUFF, "-k", "ku"},		/* 2 */
+  {0x20000000,	RC_STUFF, "-k", "kd"},		/* 4 */
+  {0x40000,	RC_BD_BC_LEFT, 0, 0},		/* 6 */
+  {0x100000,	RC_BD_BC_RIGHT, 0, 0},		/* 8 */
+  {0x4000,	RC_BD_BC_UP, 0, 0},		/* 7 */
+  {0x10000,	RC_BD_BC_DOWN, 0, 0},		/* 9 */
+  {0x44000,	RC_BD_UPPER_LEFT, 0, 0},	/* 6, 7 */
+  {0x104000,	RC_BD_UPPER_RIGHT, 0, 0},	/* 7, 8 */
+  {0x50000,	RC_BD_LOWER_LEFT, 0, 0},	/* 6, 9 */
+  {0x110000,	RC_BD_LOWER_RIGHT, 0, 0},	/* 8, 9 */
+  {0x8100000,	RC_BD_INFO, "1032", 0},		/* 2, 8 */
+  {0x8040000,	RC_BD_INFO, "2301", 0},		/* 2, 6 */
+  {0x140000,	RC_BD_INFO, "3330", 0},		/* 6, 8 */
+  {0x8010000,	RC_BD_BELL, 0, 0},		/* 2, 9 */
+  {0x8004000,	RC_BD_EIGHTDOT, 0, 0},		/* 2, 7 */
+  {0x40000000,	RC_STUFF, "\015", 0},		/* 5 */
+  {0x20000,	RC_BD_LINK, 0, 0},		/* 10 */
+  {0x20004000,	RC_BD_SCROLL, 0, 0},		/* 4, 7 */
+  {0x20010000,	RC_BD_NCRC, "+", 0},		/* 4, 9 */
+  {0x40010000,	RC_BD_SKIP, 0, 0},		/* 5, 9 */
+  {-1,		RC_ILLEGAL, 0, 0}
+};
+
+static void
+buttonpress_tsi(tab)
+struct key2rc *tab;
+{
+  int i, nb;
+  int bkeys;
+  unsigned char buf[10];
+  nb = read(bd.bd_fd, buf, 10);
+  debug1("buttonpress_tsi: read %d bytes\n", nb);
+  for (i=0, bkeys=0; i < nb; i++)
+    {   
+      switch (buf[i] & 0xE0)
+	{
+	case 0x00: bkeys += ((int)(buf[i] & 0x1f)       );  break;
+	case 0x20: bkeys += ((int)(buf[i] & 0x1f) <<  5 );  break;
+	case 0x40: bkeys += ((int)(buf[i] & 0x1f) <<  9 );  break;
+	case 0x60: bkeys += ((int)(buf[i] & 0x1f) <<  13 ); break;
+	case 0xA0: bkeys += ((int)(buf[i] & 0x1f) <<  18 ); break;
+	case 0xC0: bkeys += ((int)(buf[i] & 0x1f) <<  22 ); break;
+	case 0xE0: bkeys += ((int)(buf[i] & 0x1f) <<  26 ); break;
+	default: break;
+	}
+    }
+  debug1("bkeys %x\n", bkeys);
+  for (i = 0; tab[i].key != -1; i++)
+    if (bkeys == tab[i].key)
+      break;
+  debug1("bkey index %d\n", i);
+  if (tab[i].key != -1 && tab[i].nr != RC_ILLEGAL)
+    {
+      char *args[3];
+      int argl[2];
+      
+      struct action act;
+      args[0] = tab[i].arg1;
+      args[1] = tab[i].arg2;
+      args[2] = 0;
+      argl[0] = args[0] ? strlen(args[0]) : 0;
+      argl[1] = args[1] ? strlen(args[1]) : 0;
+      act.nr = tab[i].nr;
+      act.args = args;
+      act.argl = argl;
+      display = bd.bd_dpy;
+      DoAction(&act, -2);
+    }
+}
+
+
+static void
+buttonpress_navigator_40()
+{
+  buttonpress_tsi(keys_navigator_40);
+}
+
+static void
+buttonpress_powerbraille_40()
+{
+  buttonpress_tsi(keys_powerbraille_40);
+}
+
+static void
+buttonpress_powerbraille_80()
+{
+  buttonpress_tsi(keys_powerbraille_80);
+}
+
+#endif /* HAVE_BRAILLE */
+
+