-/*\r
- * freeglut_input_devices.c\r
- *\r
- * Handles miscellaneous input devices via direct serial-port access.\r
- * Proper X11 XInput device support is not yet supported.\r
- * Also lacks Mac support.\r
- *\r
- * Written by Joe Krahn <krahn@niehs.nih.gov> 2005\r
- *\r
- * Copyright (c) 2005 Stephen J. Baker. All Rights Reserved.\r
- *\r
- * Permission is hereby granted, free of charge, to any person obtaining a\r
- * copy of this software and associated documentation files (the "Software"),\r
- * to deal in the Software without restriction, including without limitation\r
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,\r
- * and/or sell copies of the Software, and to permit persons to whom the\r
- * Software is furnished to do so, subject to the following conditions:\r
- *\r
- * The above copyright notice and this permission notice shall be included\r
- * in all copies or substantial portions of the Software.\r
- *\r
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS\r
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\r
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL\r
- * PAWEL W. OLSZTA OR STEPHEN J. BAKER BE LIABLE FOR ANY CLAIM, DAMAGES OR\r
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,\r
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\r
- * DEALINGS IN THE SOFTWARE.\r
- */\r
-\r
-#ifdef HAVE_CONFIG_H\r
-# include "config.h"\r
-#endif\r
-\r
-#include <GL/freeglut.h>\r
-#include "freeglut_internal.h"\r
-\r
-#if TARGET_HOST_POSIX_X11\r
-#ifdef HAVE_ERRNO_H\r
-#include <errno.h>\r
-#endif\r
-#include <sys/ioctl.h>\r
-#include <stdio.h>\r
-#include <stdlib.h>\r
-#include <string.h>\r
-#include <termios.h>\r
-#include <fcntl.h>\r
-\r
-struct {\r
- int fd;\r
- struct termios termio, termio_save;\r
-} _serialport;\r
-\r
-#endif\r
-\r
-typedef struct _serialport SERIALPORT;\r
-\r
-\r
-/********************* Dialbox definitions ***********************/\r
-\r
-#define DIAL_NUM_VALUATORS 8\r
-\r
-/* dial parser state machine states */\r
-#define DIAL_NEW (-1)\r
-#define DIAL_WHICH_DEVICE 0\r
-#define DIAL_VALUE_HIGH 1\r
-#define DIAL_VALUE_LOW 2\r
-\r
-/* dial/button box commands */\r
-#define DIAL_INITIALIZE 0x20\r
-#define DIAL_SET_LEDS 0x75\r
-#define DIAL_SET_TEXT 0x61\r
-#define DIAL_SET_AUTO_DIALS 0x50\r
-#define DIAL_SET_AUTO_DELTA_DIALS 0x51\r
-#define DIAL_SET_FILTER 0x53\r
-#define DIAL_SET_BUTTONS_MOM_TYPE 0x71\r
-#define DIAL_SET_AUTO_MOM_BUTTONS 0x73\r
-#define DIAL_SET_ALL_LEDS 0x4b\r
-#define DIAL_CLEAR_ALL_LEDS 0x4c\r
-\r
-/* dial/button box replies and events */\r
-#define DIAL_INITIALIZED 0x20\r
-#define DIAL_BASE 0x30\r
-#define DIAL_DELTA_BASE 0x40\r
-#define DIAL_PRESS_BASE 0xc0\r
-#define DIAL_RELEASE_BASE 0xe0\r
-\r
-/* macros to determine reply type */\r
-#define IS_DIAL_EVENT(ch) (((ch)>=DIAL_BASE)&&((ch)<DIAL_BASE+DIAL_NUM_VALUATORS))\r
-#define IS_KEY_PRESS(ch) (((ch)>=DIAL_PRESS_BASE)&&((ch)<DIAL_PRESS_BASE+DIAL_NUM_BUTTONS))\r
-#define IS_KEY_RELEASE(ch) (((ch)>=DIAL_RELEASE_BASE)&&((ch)<DIAL_RELEASE_BASE+DIAL_NUM_BUTTONS))\r
-#define IS_INIT_EVENT(ch) ((ch)==DIAL_INITIALIZED)\r
-\r
-/*****************************************************************/\r
-\r
-extern SERIALPORT *serial_open ( const char *device );\r
-extern void serial_close ( SERIALPORT *port );\r
-extern int serial_getchar ( SERIALPORT *port );\r
-extern int serial_putchar ( SERIALPORT *port, unsigned char ch );\r
-extern void serial_flush ( SERIALPORT *port );\r
-\r
-extern void fgPlatformRegisterDialDevice ( const char *dial_device );\r
-static void send_dial_event(int dial, int value);\r
-static void poll_dials(int id);\r
-\r
-/* local variables */\r
-static SERIALPORT *dialbox_port=NULL;\r
-\r
-/*****************************************************************/\r
-\r
-/*\r
- * Implementation for glutDeviceGet(GLUT_HAS_DIAL_AND_BUTTON_BOX)\r
- */\r
-int fgInputDeviceDetect( void )\r
-{\r
- fgInitialiseInputDevices ();\r
-\r
- if ( !dialbox_port )\r
- return 0;\r
-\r
- if ( !fgState.InputDevsInitialised )\r
- return 0;\r
-\r
- return 1;\r
-}\r
-\r
-/*\r
- * Try initializing the input device(s)\r
- */\r
-#if TARGET_HOST_POSIX_X11\r
-void fgPlatformRegisterDialDevice ( const char *dial_device )\r
-{\r
-}\r
-#endif\r
-\r
-void fgInitialiseInputDevices ( void )\r
-{\r
- if( !fgState.InputDevsInitialised )\r
- {\r
- const char *dial_device=NULL;\r
- dial_device = getenv ( "GLUT_DIALS_SERIAL" );\r
- fgPlatformRegisterDialDevice ( dial_device );\r
-\r
- if ( !dial_device ) return;\r
- if ( !( dialbox_port = serial_open ( dial_device ) ) ) return;\r
- serial_putchar(dialbox_port,DIAL_INITIALIZE);\r
- glutTimerFunc ( 10, poll_dials, 0 );\r
- fgState.InputDevsInitialised = GL_TRUE;\r
- }\r
-}\r
-\r
-/*\r
- *\r
- */\r
-void fgInputDeviceClose( void )\r
-{\r
- if ( fgState.InputDevsInitialised )\r
- {\r
- serial_close ( dialbox_port );\r
- dialbox_port = NULL;\r
- fgState.InputDevsInitialised = GL_FALSE;\r
- }\r
-}\r
-\r
-/********************************************************************/\r
-\r
-/* Check all windows for dialbox callbacks */\r
-static void fghcbEnumDialCallbacks ( SFG_Window *window, SFG_Enumerator *enumerator )\r
-{\r
- /* Built-in to INVOKE_WCB(): if window->Callbacks[CB_Dials] */\r
- INVOKE_WCB ( *window,Dials, ( ((int*)enumerator->data)[0], ((int*)enumerator->data)[1]) );\r
- fgEnumSubWindows ( window, fghcbEnumDialCallbacks, enumerator );\r
-}\r
-\r
-static void send_dial_event ( int num, int value )\r
-{\r
- SFG_Enumerator enumerator;\r
- int data[2];\r
- data[0] = num;\r
- data[1] = value;\r
- enumerator.found = GL_FALSE;\r
- enumerator.data = data;\r
- fgEnumWindows ( fghcbEnumDialCallbacks, &enumerator );\r
-}\r
-\r
-/********************************************************************/\r
-static void poll_dials ( int id )\r
-{\r
- int data;\r
- static int dial_state = DIAL_NEW;\r
- static int dial_which;\r
- static int dial_value;\r
- static int dials[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };\r
-\r
- if ( !dialbox_port ) return;\r
-\r
- while ( (data=serial_getchar(dialbox_port)) != EOF )\r
- {\r
- if ( ( dial_state > DIAL_WHICH_DEVICE ) || IS_DIAL_EVENT ( data ) )\r
- {\r
- switch ( dial_state )\r
- {\r
- case DIAL_WHICH_DEVICE:\r
- dial_which = data - DIAL_BASE;\r
- dial_state++;\r
- break;\r
- case DIAL_VALUE_HIGH:\r
- dial_value = ( data << 8 );\r
- dial_state++;\r
- break;\r
- case DIAL_VALUE_LOW:\r
- dial_value |= data;\r
- if ( dial_value & 0x8000 ) dial_value -= 0x10000;\r
- dials[dial_which] = dial_value;\r
- send_dial_event ( dial_which + 1, dial_value * 360 / 256 );\r
- dial_state = DIAL_WHICH_DEVICE;\r
- break;\r
- default:\r
- /* error: Impossible state value! */\r
- break;\r
- }\r
- }\r
- else if ( data == DIAL_INITIALIZED )\r
- {\r
- fgState.InputDevsInitialised = GL_TRUE;\r
- dial_state = DIAL_WHICH_DEVICE;\r
- serial_putchar(dialbox_port,DIAL_SET_AUTO_DIALS);\r
- serial_putchar(dialbox_port,0xff);\r
- serial_putchar(dialbox_port,0xff);\r
- }\r
- else /* Unknown data; try flushing. */\r
- serial_flush(dialbox_port);\r
- }\r
-\r
- glutTimerFunc ( 2, poll_dials, 0 );\r
-}\r
-\r
-\r
-/******** OS Specific Serial I/O routines *******/\r
-#if TARGET_HOST_POSIX_X11 /* ==> Linux/BSD/UNIX POSIX serial I/O */\r
-static SERIALPORT *serial_open ( const char *device )\r
-{\r
- int fd;\r
- struct termios termio;\r
- SERIALPORT *port;\r
-\r
- fd = open(device, O_RDWR | O_NONBLOCK );\r
- if (fd <0) {\r
- perror(device);\r
- return NULL;\r
- }\r
-\r
- port = malloc(sizeof(SERIALPORT));\r
- memset(port, 0, sizeof(SERIALPORT));\r
- port->fd = fd;\r
-\r
- /* save current port settings */\r
- tcgetattr(fd,&port->termio_save);\r
-\r
- memset(&termio, 0, sizeof(termio));\r
- termio.c_cflag = CS8 | CREAD | HUPCL ;\r
- termio.c_iflag = IGNPAR | IGNBRK ;\r
- termio.c_cc[VTIME] = 0; /* inter-character timer */\r
- termio.c_cc[VMIN] = 1; /* block read until 1 chars received, when blocking I/O */\r
-\r
- cfsetispeed(&termio, B9600);\r
- cfsetospeed(&termio, B9600);\r
- tcsetattr(fd,TCSANOW,&termio);\r
-\r
- serial_flush(port);\r
- return port;\r
-}\r
-\r
-static void serial_close(SERIALPORT *port)\r
-{\r
- if (port)\r
- {\r
- /* restore old port settings */\r
- tcsetattr(port->fd,TCSANOW,&port->termio_save);\r
- close(port->fd);\r
- free(port);\r
- }\r
-}\r
-\r
-static int serial_getchar(SERIALPORT *port)\r
-{\r
- unsigned char ch;\r
- if (!port) return EOF;\r
- if (read(port->fd,&ch,1)) return ch;\r
- return EOF;\r
-}\r
-\r
-static int serial_putchar(SERIALPORT *port, unsigned char ch){\r
- if (!port) return 0;\r
- return write(port->fd,&ch,1);\r
-}\r
-\r
-static void serial_flush ( SERIALPORT *port )\r
-{\r
- tcflush ( port->fd, TCIOFLUSH );\r
-}\r
-\r
-#endif\r
+/*
+ * freeglut_input_devices.c
+ *
+ * Handles miscellaneous input devices via direct serial-port access.
+ * Proper X11 XInput device support is not yet supported.
+ * Also lacks Mac support.
+ *
+ * Written by Joe Krahn <krahn@niehs.nih.gov> 2005
+ *
+ * Copyright (c) 2005 Stephen J. Baker. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * PAWEL W. OLSZTA OR STEPHEN J. BAKER BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <GL/freeglut.h>
+#include "freeglut_internal.h"
+
+typedef struct _serialport SERIALPORT;
+
+
+/********************* Dialbox definitions ***********************/
+
+#define DIAL_NUM_VALUATORS 8
+
+/* dial parser state machine states */
+#define DIAL_NEW (-1)
+#define DIAL_WHICH_DEVICE 0
+#define DIAL_VALUE_HIGH 1
+#define DIAL_VALUE_LOW 2
+
+/* dial/button box commands */
+#define DIAL_INITIALIZE 0x20
+#define DIAL_SET_LEDS 0x75
+#define DIAL_SET_TEXT 0x61
+#define DIAL_SET_AUTO_DIALS 0x50
+#define DIAL_SET_AUTO_DELTA_DIALS 0x51
+#define DIAL_SET_FILTER 0x53
+#define DIAL_SET_BUTTONS_MOM_TYPE 0x71
+#define DIAL_SET_AUTO_MOM_BUTTONS 0x73
+#define DIAL_SET_ALL_LEDS 0x4b
+#define DIAL_CLEAR_ALL_LEDS 0x4c
+
+/* dial/button box replies and events */
+#define DIAL_INITIALIZED 0x20
+#define DIAL_BASE 0x30
+#define DIAL_DELTA_BASE 0x40
+#define DIAL_PRESS_BASE 0xc0
+#define DIAL_RELEASE_BASE 0xe0
+
+/* macros to determine reply type */
+#define IS_DIAL_EVENT(ch) (((ch)>=DIAL_BASE)&&((ch)<DIAL_BASE+DIAL_NUM_VALUATORS))
+#define IS_KEY_PRESS(ch) (((ch)>=DIAL_PRESS_BASE)&&((ch)<DIAL_PRESS_BASE+DIAL_NUM_BUTTONS))
+#define IS_KEY_RELEASE(ch) (((ch)>=DIAL_RELEASE_BASE)&&((ch)<DIAL_RELEASE_BASE+DIAL_NUM_BUTTONS))
+#define IS_INIT_EVENT(ch) ((ch)==DIAL_INITIALIZED)
+
+/*****************************************************************/
+
+extern SERIALPORT *serial_open ( const char *device );
+extern void serial_close ( SERIALPORT *port );
+extern int serial_getchar ( SERIALPORT *port );
+extern int serial_putchar ( SERIALPORT *port, unsigned char ch );
+extern void serial_flush ( SERIALPORT *port );
+
+extern void fgPlatformRegisterDialDevice ( const char *dial_device );
+static void send_dial_event(int dial, int value);
+static void poll_dials(int id);
+
+/* local variables */
+static SERIALPORT *dialbox_port=NULL;
+
+/*****************************************************************/
+
+/*
+ * Implementation for glutDeviceGet(GLUT_HAS_DIAL_AND_BUTTON_BOX)
+ */
+int fgInputDeviceDetect( void )
+{
+ fgInitialiseInputDevices ();
+
+ if ( !dialbox_port )
+ return 0;
+
+ if ( !fgState.InputDevsInitialised )
+ return 0;
+
+ return 1;
+}
+
+/*
+ * Try initializing the input device(s)
+ */
+void fgInitialiseInputDevices ( void )
+{
+ if( !fgState.InputDevsInitialised )
+ {
+ const char *dial_device=NULL;
+ dial_device = getenv ( "GLUT_DIALS_SERIAL" );
+ fgPlatformRegisterDialDevice ( dial_device );
+
+ if ( !dial_device ) return;
+ if ( !( dialbox_port = serial_open ( dial_device ) ) ) return;
+ serial_putchar(dialbox_port,DIAL_INITIALIZE);
+ glutTimerFunc ( 10, poll_dials, 0 );
+ fgState.InputDevsInitialised = GL_TRUE;
+ }
+}
+
+/*
+ *
+ */
+void fgInputDeviceClose( void )
+{
+ if ( fgState.InputDevsInitialised )
+ {
+ serial_close ( dialbox_port );
+ dialbox_port = NULL;
+ fgState.InputDevsInitialised = GL_FALSE;
+ }
+}
+
+/********************************************************************/
+
+/* Check all windows for dialbox callbacks */
+static void fghcbEnumDialCallbacks ( SFG_Window *window, SFG_Enumerator *enumerator )
+{
+ /* Built-in to INVOKE_WCB(): if window->Callbacks[CB_Dials] */
+ INVOKE_WCB ( *window,Dials, ( ((int*)enumerator->data)[0], ((int*)enumerator->data)[1]) );
+ fgEnumSubWindows ( window, fghcbEnumDialCallbacks, enumerator );
+}
+
+static void send_dial_event ( int num, int value )
+{
+ SFG_Enumerator enumerator;
+ int data[2];
+ data[0] = num;
+ data[1] = value;
+ enumerator.found = GL_FALSE;
+ enumerator.data = data;
+ fgEnumWindows ( fghcbEnumDialCallbacks, &enumerator );
+}
+
+/********************************************************************/
+static void poll_dials ( int id )
+{
+ int data;
+ static int dial_state = DIAL_NEW;
+ static int dial_which;
+ static int dial_value;
+ static int dials[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
+
+ if ( !dialbox_port ) return;
+
+ while ( (data=serial_getchar(dialbox_port)) != EOF )
+ {
+ if ( ( dial_state > DIAL_WHICH_DEVICE ) || IS_DIAL_EVENT ( data ) )
+ {
+ switch ( dial_state )
+ {
+ case DIAL_WHICH_DEVICE:
+ dial_which = data - DIAL_BASE;
+ dial_state++;
+ break;
+ case DIAL_VALUE_HIGH:
+ dial_value = ( data << 8 );
+ dial_state++;
+ break;
+ case DIAL_VALUE_LOW:
+ dial_value |= data;
+ if ( dial_value & 0x8000 ) dial_value -= 0x10000;
+ dials[dial_which] = dial_value;
+ send_dial_event ( dial_which + 1, dial_value * 360 / 256 );
+ dial_state = DIAL_WHICH_DEVICE;
+ break;
+ default:
+ /* error: Impossible state value! */
+ break;
+ }
+ }
+ else if ( data == DIAL_INITIALIZED )
+ {
+ fgState.InputDevsInitialised = GL_TRUE;
+ dial_state = DIAL_WHICH_DEVICE;
+ serial_putchar(dialbox_port,DIAL_SET_AUTO_DIALS);
+ serial_putchar(dialbox_port,0xff);
+ serial_putchar(dialbox_port,0xff);
+ }
+ else /* Unknown data; try flushing. */
+ serial_flush(dialbox_port);
+ }
+
+ glutTimerFunc ( 2, poll_dials, 0 );
+}
+
projects / freeglut / blobdiff