Hi,
I've just finished writing an input driver for dynapro/sc3 style touch screen
drivers. As you might have guessed, that's the one we're using for our
devices.
As it is largely identical to at least the serial mouse driver and the palmax
touch screen driver (which seems to use a newer version of the same
protocol), it might be nice to put the shared code in another file, but I'm
not sure if that's worth the effort.
For now, the driver is working nicely and does not touch other parts of the
server.
Arnd <><
diff -ur --new-file pgui-dev20020109/pgserver/config.in
pgui-dev20020109-sc3/pgserver/config.in
--- pgui-dev20020109/pgserver/config.in Sun Jan 6 04:25:16 2002
+++ pgui-dev20020109-sc3/pgserver/config.in Thu Jan 10 14:08:31 2002
@@ -108,6 +108,7 @@
bool 'Touchscreen calibration' CONFIG_TOUCHSCREEN
if [ "$CONFIG_TOUCHSCREEN" = "y" ]; then
bool 'Palmax touchscreen driver' DRIVER_PALMAXTS
+ bool 'SC3 compatible touchscreen input driver' DRIVER_SC3TS
fi
bool 'SDL input driver' DRIVER_SDLINPUT
bool 'X Window System input driver' DRIVER_X11INPUT
diff -ur --new-file pgui-dev20020109/pgserver/gcore/inputdrivers.inc
pgui-dev20020109-sc3/pgserver/gcore/inputdrivers.inc
--- pgui-dev20020109/pgserver/gcore/inputdrivers.inc Sun Jan 6 02:28:45 2002
+++ pgui-dev20020109-sc3/pgserver/gcore/inputdrivers.inc Thu Jan 10 14:08:31
+2002
@@ -41,6 +41,10 @@
DRV("ucb1x00",&ucb1x00_regfunc)
#endif
+#ifdef DRIVER_SC3TS
+ DRV("sc3ts",&sc3_regfunc)
+#endif
+
#ifdef DRIVER_TTYKB
DRV("ttykb",&ttykb_regfunc)
#endif
diff -ur --new-file pgui-dev20020109/pgserver/include/pgserver/input.h
pgui-dev20020109-sc3/pgserver/include/pgserver/input.h
--- pgui-dev20020109/pgserver/include/pgserver/input.h Mon Jan 7 19:26:12 2002
+++ pgui-dev20020109-sc3/pgserver/include/pgserver/input.h Thu Jan 10 14:08:31
+2002
@@ -135,6 +135,7 @@
g_error vr3ts_regfunc(struct inlib *i);
g_error tuxts_regfunc(struct inlib *i);
g_error ucb1x00_regfunc(struct inlib *i);
+g_error sc3_regfunc(struct inlib *i);
g_error ttykb_regfunc(struct inlib *i);
g_error remorakb_regfunc(struct inlib *i);
g_error serialmouse_regfunc(struct inlib *i);
diff -ur --new-file pgui-dev20020109/pgserver/input/sc3ts.c
pgui-dev20020109-sc3/pgserver/input/sc3ts.c
--- pgui-dev20020109/pgserver/input/sc3ts.c Thu Jan 1 01:00:00 1970
+++ pgui-dev20020109-sc3/pgserver/input/sc3ts.c Thu Jan 10 14:13:16 2002
@@ -0,0 +1,173 @@
+/* $Id:$
+ *
+ * sc3ts.c - input driver for sc3 compatible touch screens
+ *
+ * (C) 2001 SSV Embedded Systems GmbH, Arnd Bergmann <[EMAIL PROTECTED]>
+ *
+ * Based on serial mouse driver, see serialmouse.c for complete
+ * changelog
+ *
+ * ---------------------------
+ *
+ * PicoGUI small and efficient client/server GUI
+ * Copyright (C) 2000,2001 Micah Dowty <[EMAIL PROTECTED]>
+ *
+ * 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
+ * of the License, 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ ***************************************************************************/
+
+#include <pgserver/common.h>
+#include <pgserver/input.h>
+#include <pgserver/widget.h>
+#include <pgserver/configfile.h>
+#include <pgserver/touchscreen.h>
+
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/termios.h>
+
+int sc3_fd;
+int btnstate;
+struct termios options;
+
+struct sc3_event {
+ u8 y_high : 3; /* lower half of horizontal position */
+ u8 x_high : 3; /* lower half of vertical position */
+ u8 pressure : 1; /* button state */
+ u8 sync : 1; /* set to 1 on first byte, 0 otherwise */
+ u8 x_low; /* upper half of horizontal position */
+ u8 y_low; /* upper half of vertical position */
+ u8 pad; /* pad to 32 bit */
+};
+
+static int minx = 76;
+static int miny = 86;
+static int maxx = 950;
+static int maxy = 935;
+
+int sc3_fd_activate(int fd) {
+ u8 buttons;
+ static u8 packet[3];
+ static int pos;
+ struct sc3_event *event = (struct sc3_event *)packet;
+ int cursorx,cursory;
+
+ if (fd != sc3_fd)
+ return 0;
+
+ /* Read a correctly-aligned sc3 packet. If the first byte isn't 0x80,
+ * it isn't correctly aligned. The sc3 packet is 3 bytes long.
+ */
+
+ if (read(sc3_fd,packet+pos,1) != 1)
+ return 1;
+ if (!(packet[0] & 0x80))
+ return 1;
+ if (pos++ < 2)
+ return 1;
+ pos = 0;
+
+ buttons = event->pressure;
+ cursorx = event->x_high << 7 | event->x_low;
+ cursory = event->y_high << 7 | event->y_low;
+
+#ifdef DEBUG_EVENT
+ {
+ int a,b,c;
+
+ a = packet[0];
+ b = packet[1];
+ c = packet[2];
+ printf("fd=%d, x=%4d, y=%4d, buttons=%2d packet = %02X %02X %02X\n",
+ sc3_fd,cursorx,cursory,buttons,a,b,c);
+ }
+#endif
+
+ touchscreen_pentoscreen(&cursorx, &cursory);
+
+ if ((buttons!=0)&&(btnstate==0)){
+ dispatch_pointing(TRIGGER_DOWN,cursorx,cursory,buttons);
+ btnstate=1;
+ }
+ if ((buttons==0)&&(btnstate==1)){
+ dispatch_pointing(TRIGGER_UP,cursorx,cursory,buttons);
+ btnstate=0;
+ }
+ if(buttons)
+ dispatch_pointing(TRIGGER_MOVE,cursorx,cursory,buttons);
+
+ return 1;
+}
+
+g_error sc3_init(void) {
+
+ g_error ret;
+
+ ret=touchscreen_init();
+ if(ret!=success)
+ return ret;
+
+
+
+ sc3_fd = open(get_param_str("input-sc3ts","device","/dev/ttyS1"),
+ O_RDONLY | O_NOCTTY | O_NDELAY);
+
+ if(sc3_fd < 0)
+ return mkerror(PG_ERRT_IO,43); /* Error opening sc3 device */
+
+ tcgetattr(sc3_fd, &options);
+ cfsetispeed(&options, B2400); /* baud rate 2400 */
+ options.c_cflag |= (CLOCAL | CREAD); /* Enable
+ receiver and set the local mode */
+ options.c_cflag &= ~PARENB; /* None parity */
+ options.c_cflag &= ~CSIZE; /* Mask the character bit
+ size */
+ options.c_cflag |= CS8; /* 8 data bits */
+ options.c_cflag &= ~CSTOPB; /* 1 stop bits */
+ options.c_cflag &= ~CRTSCTS;/* Disable hardware flow
+ control */
+ options.c_iflag &= ~(IXON | IXOFF | IXANY);/* Disable
+ software flow control */
+ /* Set raw input and output */
+ options.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG);
+ options.c_oflag &= ~OPOST;
+
+ tcsetattr(sc3_fd, TCSANOW, &options); /* set parameters */
+ return success;
+}
+
+void sc3_fd_init(int *n,fd_set *readfds,struct
+ timeval *timeout) {
+ if ((*n)<(sc3_fd+1))
+ *n = sc3_fd+1;
+ if (sc3_fd>0)
+ FD_SET(sc3_fd,readfds);
+}
+
+void sc3_close(void){
+ close(sc3_fd);
+}
+
+g_error sc3_regfunc(struct inlib *i) {
+ i->init = &sc3_init;
+ i->fd_activate = &sc3_fd_activate;
+ i->fd_init = &sc3_fd_init;
+ i->message = &touchscreen_message;
+ i->close = &sc3_close;
+ return success;
+}
diff -ur --new-file pgui-dev20020109/pgserver/input/sc3ts.c~
pgui-dev20020109-sc3/pgserver/input/sc3ts.c~
--- pgui-dev20020109/pgserver/input/sc3ts.c~ Thu Jan 1 01:00:00 1970
+++ pgui-dev20020109-sc3/pgserver/input/sc3ts.c~ Thu Jan 10 14:09:02 2002
@@ -0,0 +1,173 @@
+/* $Id: sc3ts.c,v 1.4 2001/12/14 22:56:43 micahjd Exp $
+ *
+ * sc3ts.c - input driver for sc3 compatible touch screens
+ *
+ * (C) 2001 SSV Embedded Systems GmbH, Arnd Bergmann <[EMAIL PROTECTED]>
+ *
+ * Based on serial mouse driver, see serialmouse.c for complete
+ * changelog
+ *
+ * ---------------------------
+ *
+ * PicoGUI small and efficient client/server GUI
+ * Copyright (C) 2000,2001 Micah Dowty <[EMAIL PROTECTED]>
+ *
+ * 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
+ * of the License, 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ ***************************************************************************/
+
+#include <pgserver/common.h>
+#include <pgserver/input.h>
+#include <pgserver/widget.h>
+#include <pgserver/configfile.h>
+#include <pgserver/touchscreen.h>
+
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/termios.h>
+
+int sc3_fd;
+int btnstate;
+struct termios options;
+
+struct sc3_event {
+ u8 y_high : 3; /* lower half of horizontal position */
+ u8 x_high : 3; /* lower half of vertical position */
+ u8 pressure : 1; /* button state */
+ u8 sync : 1; /* set to 1 on first byte, 0 otherwise */
+ u8 x_low; /* upper half of horizontal position */
+ u8 y_low; /* upper half of vertical position */
+ u8 pad; /* pad to 32 bit */
+};
+
+static int minx = 76;
+static int miny = 86;
+static int maxx = 950;
+static int maxy = 935;
+
+int sc3_fd_activate(int fd) {
+ u8 buttons;
+ static u8 packet[3];
+ static int pos;
+ struct sc3_event *event = (struct sc3_event *)packet;
+ int cursorx,cursory;
+
+ if (fd != sc3_fd)
+ return 0;
+
+ /* Read a correctly-aligned sc3 packet. If the first byte isn't 0x80,
+ * it isn't correctly aligned. The sc3 packet is 3 bytes long.
+ */
+
+ if (read(sc3_fd,packet+pos,1) != 1)
+ return 1;
+ if (!(packet[0] & 0x80))
+ return 1;
+ if (pos++ < 2)
+ return 1;
+ pos = 0;
+
+ buttons = event->pressure;
+ cursorx = event->x_high << 7 | event->x_low;
+ cursory = event->y_high << 7 | event->y_low;
+
+#ifdef DEBUG_EVENT
+ {
+ int a,b,c;
+
+ a = packet[0];
+ b = packet[1];
+ c = packet[2];
+ printf("fd=%d, x=%4d, y=%4d, buttons=%2d packet = %02X %02X %02X\n",
+ sc3_fd,cursorx,cursory,buttons,a,b,c);
+ }
+#endif
+
+ touchscreen_pentoscreen(&cursorx, &cursory);
+
+ if ((buttons!=0)&&(btnstate==0)){
+ dispatch_pointing(TRIGGER_DOWN,cursorx,cursory,buttons);
+ btnstate=1;
+ }
+ if ((buttons==0)&&(btnstate==1)){
+ dispatch_pointing(TRIGGER_UP,cursorx,cursory,buttons);
+ btnstate=0;
+ }
+ if(buttons)
+ dispatch_pointing(TRIGGER_MOVE,cursorx,cursory,buttons);
+
+ return 1;
+}
+
+g_error sc3_init(void) {
+
+ g_error ret;
+
+ ret=touchscreen_init();
+ if(ret!=success)
+ return ret;
+
+
+
+ sc3_fd = open(get_param_str("input-sc3ts","device","/dev/ttyS1"),
+ O_RDONLY | O_NOCTTY | O_NDELAY);
+
+ if(sc3_fd < 0)
+ return mkerror(PG_ERRT_IO,43); /* Error opening sc3 device */
+
+ tcgetattr(sc3_fd, &options);
+ cfsetispeed(&options, B2400); /* baud rate 2400 */
+ options.c_cflag |= (CLOCAL | CREAD); /* Enable
+ receiver and set the local mode */
+ options.c_cflag &= ~PARENB; /* None parity */
+ options.c_cflag &= ~CSIZE; /* Mask the character bit
+ size */
+ options.c_cflag |= CS8; /* 8 data bits */
+ options.c_cflag &= ~CSTOPB; /* 1 stop bits */
+ options.c_cflag &= ~CRTSCTS;/* Disable hardware flow
+ control */
+ options.c_iflag &= ~(IXON | IXOFF | IXANY);/* Disable
+ software flow control */
+ /* Set raw input and output */
+ options.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG);
+ options.c_oflag &= ~OPOST;
+
+ tcsetattr(sc3_fd, TCSANOW, &options); /* set parameters */
+ return success;
+}
+
+void sc3_fd_init(int *n,fd_set *readfds,struct
+ timeval *timeout) {
+ if ((*n)<(sc3_fd+1))
+ *n = sc3_fd+1;
+ if (sc3_fd>0)
+ FD_SET(sc3_fd,readfds);
+}
+
+void sc3_close(void){
+ close(sc3_fd);
+}
+
+g_error sc3_regfunc(struct inlib *i) {
+ i->init = &sc3_init;
+ i->fd_activate = &sc3_fd_activate;
+ i->fd_init = &sc3_fd_init;
+ i->message = &touchscreen_message;
+ i->close = &sc3_close;
+ return success;
+}
diff -ur --new-file pgui-dev20020109/pgserver/select.in
pgui-dev20020109-sc3/pgserver/select.in
--- pgui-dev20020109/pgserver/select.in Sun Jan 6 02:28:45 2002
+++ pgui-dev20020109-sc3/pgserver/select.in Thu Jan 10 14:08:31 2002
@@ -97,6 +97,7 @@
add_if_true serialmouse.c $DRIVER_SERIALMOUSE
add_if_true x11input.c $DRIVER_X11INPUT
add_if_true palmaxts.c $DRIVER_PALMAXTS
+add_if_true sc3ts.c $DRIVER_SC3TS
add_if_true mgl2input.c $DRIVER_MGL2INPUT
close_section
