Adding upstream version 4.9.0.upstream/4.9.0upstream

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

1 files changed, 314 insertions, 0 deletions

diff --git a/braille_tsi.c b/braille_tsi.c
new file mode 100644
index 0000000..8e05d75
--- /dev/null
+++ b/braille_tsi.c
@@ -0,0 +1,314 @@
+/*    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
+ * https://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((structkey2rc*));
+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(char *bstr, int line_length, int 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(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 */