diff options
Diffstat (limited to 'Source/DirectFB/inputdrivers/elo')
| -rwxr-xr-x | Source/DirectFB/inputdrivers/elo/Makefile.am | 31 | ||||
| -rwxr-xr-x | Source/DirectFB/inputdrivers/elo/Makefile.in | 592 | ||||
| -rwxr-xr-x | Source/DirectFB/inputdrivers/elo/elo.c | 539 |
3 files changed, 1162 insertions, 0 deletions
diff --git a/Source/DirectFB/inputdrivers/elo/Makefile.am b/Source/DirectFB/inputdrivers/elo/Makefile.am new file mode 100755 index 0000000..28a3583 --- /dev/null +++ b/Source/DirectFB/inputdrivers/elo/Makefile.am @@ -0,0 +1,31 @@ +## Makefile.am for DirectFB/inputdrivers/elo + +INCLUDES = \ + -I$(top_srcdir)/include \ + -I$(top_builddir)/lib \ + -I$(top_srcdir)/lib \ + -I$(top_srcdir)/src + +input_LTLIBRARIES = libdirectfb_elo.la + +if BUILD_STATIC +input_DATA = $(input_LTLIBRARIES:.la=.o) +endif + +inputdir = $(MODULEDIR)/inputdrivers + +libdirectfb_elo_la_SOURCES = \ + elo.c + +libdirectfb_elo_la_LDFLAGS = \ + -module \ + -avoid-version \ + $(DFB_LDFLAGS) + +libdirectfb_elo_la_LIBADD = \ + $(top_builddir)/lib/direct/libdirect.la \ + $(top_builddir)/src/libdirectfb.la + + +include $(top_srcdir)/rules/libobject.make + diff --git a/Source/DirectFB/inputdrivers/elo/Makefile.in b/Source/DirectFB/inputdrivers/elo/Makefile.in new file mode 100755 index 0000000..f52684b --- /dev/null +++ b/Source/DirectFB/inputdrivers/elo/Makefile.in @@ -0,0 +1,592 @@ +# Makefile.in generated by automake 1.10.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, +# 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc. +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + + +VPATH = @srcdir@ +pkgdatadir = $(datadir)/@PACKAGE@ +pkglibdir = $(libdir)/@PACKAGE@ +pkgincludedir = $(includedir)/@PACKAGE@ +am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd +install_sh_DATA = $(install_sh) -c -m 644 +install_sh_PROGRAM = $(install_sh) -c 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install-strip + +.PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \ + clean-inputLTLIBRARIES clean-libtool ctags distclean \ + distclean-compile distclean-generic distclean-libtool \ + distclean-tags distdir dvi dvi-am html html-am info info-am \ + install install-am install-data install-data-am install-dvi \ + install-dvi-am install-exec install-exec-am install-html \ + install-html-am install-info install-info-am install-inputDATA \ + install-inputLTLIBRARIES install-man install-pdf \ + install-pdf-am install-ps install-ps-am install-strip \ + installcheck installcheck-am installdirs maintainer-clean \ + maintainer-clean-generic mostlyclean mostlyclean-compile \ + mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \ + tags uninstall uninstall-am uninstall-inputDATA \ + uninstall-inputLTLIBRARIES + +%.o: .libs/%.a %.la + rm -f $<.tmp/*.o + if test -d $<.tmp; then rmdir $<.tmp; fi + mkdir $<.tmp + (cd $<.tmp && $(AR) x ../../$<) + $(LD) -o $@ -r $<.tmp/*.o + rm -f $<.tmp/*.o && rmdir $<.tmp + +.PHONY: $(LTLIBRARIES:%.la=.libs/%.a) +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/Source/DirectFB/inputdrivers/elo/elo.c b/Source/DirectFB/inputdrivers/elo/elo.c new file mode 100755 index 0000000..0274bff --- /dev/null +++ b/Source/DirectFB/inputdrivers/elo/elo.c @@ -0,0 +1,539 @@ +/* + (c) Copyright 2003 Commercial Timesharing Inc. + + All rights reserved. + + Written by Byron Stanoszek <bstanoszek@comtime.com> and + Brandon Reynolds <bmr@comtime.com> + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the + Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. + + */ + +#include <config.h> + +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <unistd.h> +#include <errno.h> +#include <fcntl.h> + +#include <termios.h> + +#include <sys/ioctl.h> +#include <sys/types.h> +#include <sys/file.h> + +#include <linux/serial.h> + +#include <directfb.h> + +#include <core/coredefs.h> +#include <core/coretypes.h> + +#include <core/input.h> +#include <core/system.h> + +#include <misc/conf.h> + +#include <direct/debug.h> +#include <direct/mem.h> +#include <direct/messages.h> +#include <direct/memcpy.h> +#include <direct/thread.h> + +#include <core/input_driver.h> + + +DFB_INPUT_DRIVER( elo ) + +#define elo_REPORT_SIZE 5 +#define elo_PACKET_SIZE 10 +#define elo_SCREENWIDTH 4096 +#define elo_SCREENHEIGHT 4096 +#define elo_MINX 0 +#define elo_MINY 0 + + +/* Mode 1 Bit Definitions */ +#define ELO_M_INITIAL 0x01 /* Enables initial pressing detection */ +#define ELO_M_STREAM 0x02 /* Enables stream touch (when finger moves) */ +#define ELO_M_UNTOUCH 0x04 /* Enables untouch detection */ +#define ELO_M_RANGECK 0x40 /* Range checking mode */ + +/* Mode 2 Bit Definitions */ +#define ELO_M_TRIM 0x02 /* Trim Mode */ +#define ELO_M_CALIB 0x04 /* Calibration Mode */ +#define ELO_M_SCALE 0x08 /* Scaling Mode */ +#define ELO_M_TRACK 0x40 /* Tracking Mode */ + + +typedef struct __eloData__ { + int fd; + DirectThread *thread; + CoreInputDevice *device; + unsigned short x; + unsigned short y; + unsigned short screen_width; + unsigned short screen_height; + unsigned short min_x; + unsigned short min_y; + unsigned char action; +} eloData; + +static int elo_check_ack(int fd); + +static inline void __mdelay(unsigned int msec) +{ + struct timespec delay; + + delay.tv_sec = 0; + delay.tv_nsec = msec * 1000000; + nanosleep (&delay, NULL); +} + +// Write a 10-byte character packet to the touch device. +// +static inline void elo_putbuf(int fd, unsigned char *data) +{ + unsigned char packet[10]; + int i; + + packet[0]='U'; /* Special serial lead-in byte */ + memcpy(packet+1, data, 8); + packet[9]=0; + + /* Calculate checksum */ + for(i=1;i<9;i++) + packet[9]+=packet[i]; + packet[9]--; + + write(fd, packet, 10); +} +// Read a packet from the touch device. +// +static inline unsigned char *elo_getbuf(int fd) +{ + static unsigned char packet[10]; + static int len=0, start=0; + + fd_set set; + unsigned char checksum; + int i, j; + + while(1) { + /* look ahead to see if there is any data to be gotten */ + FD_ZERO(&set); + FD_SET(fd, &set); + if(!select(fd+1, &set, NULL, NULL, NULL)) + return NULL; + + /* read the next byte from the stream */ + if(read(fd, &packet[len++], 1) < 1) + exit(1); + if(!start && packet[len-1] != 0x55) { /* search for `begin-packet' 0x55 */ + len=0; + continue; + } + + start=1; + if(len < 10) /* wait until we get 10 full bytes first */ + continue; + + /* check packet checksum when finished */ + for(i=1,checksum=0;i<9;i++) + checksum+=packet[i]; + checksum--; + + /* checksum does not match */ + if(checksum != packet[9]) { + /* scan buffer for next `begin-packet' byte 0x55 */ + for(i=1;i<10;i++) + if(packet[i] == 0x55) + break; + if(i == 10) { /* No other 0x55 found */ + len=0; + continue; + } + for(j=0;i+j < 10;j++) /* Move 0x55 to front of buffer */ + packet[j]=packet[i+j]; + len=j; + continue; + } + + /* We have a match. Return buffer string */ + len=0; /* set for next match */ + + return packet+1; + } +} + +// Remove all input translations over tty serial controller. +// +// set=1: Saves current settings then turns rawmode on. +// set=0: Restores controller to previous saved value. +// +static void tty_rawmode(int fd, int set) +{ + static struct termio tbuf, termio_save; + + int ret; + + if(set) { + ioctl(fd, TCGETA, &termio_save); + tbuf=termio_save; + + /* For complete explanation of the flags set/unset below, see termios(3) + unix programmers reference manual. */ + + tbuf.c_iflag = 0; /* No input processing */ + tbuf.c_oflag = 0; /* No output processing */ + tbuf.c_lflag = 0; /* Disable erase/kill, signals, and echo */ + + tbuf.c_cflag = B9600|CS8|CLOCAL|CREAD; /* Set baud & 1-char read mode */ + + ret = ioctl(fd, TCSETAF, &tbuf); + D_INFO("Elo:tty_rawmode ioctl= %d\n",ret); + } else + ioctl(fd, TCSETAF, &termio_save); +} + +// Wait for acknowledgment. Returns 0 if no packet received or 1 for success or 2 for fail. +static int elo_check_ack(int fd) +{ + unsigned char buf[100]; + int i; + + + __mdelay(100); + fd_set set; + struct timeval timeout={0, 100000}; /* 0.1 seconds */ + FD_ZERO(&set); + FD_SET(fd, &set); + if(!select(fd+1, &set, NULL, NULL, &timeout)) { + D_INFO("Elo:elo_check_ack NO PACKET\n"); + return 0; + } + memset(buf, 0, sizeof(buf)); + ssize_t nb = read( fd, buf, sizeof(buf)-1); + if( nb >= 0) { + for( i = 0; i < nb; i++ ) { + if( buf[i] < 0x20 ) + buf[i] = 0x20; + } + buf[nb] = '\0'; /* buf now look as a string */ + char* pt = strstr( buf, "A0000"); + if ( pt != NULL ) { + D_INFO("Elo:elo_check_ack nb= %zd ACK OK\n", nb); + + return 1; + } + } + D_INFO("Elo:elo_check_ack nb= %zd ACK KO\n", nb); + return 2; +} + +// Set scaling info to touch device. Axis can be either 'X', 'Y', or 'Z'. +// +static int elo_set_scale(int fd, unsigned char axis, short low, short high) +{ + unsigned char packet[8], *ptr; + + if(axis < 'X' || axis > 'Z') + return -1; + + memset(packet, 0, 8); + packet[0]='S'; + packet[1]=axis; + packet[2]=low; + packet[3]=low >> 8; + packet[4]=high; + packet[5]=high >> 8; + + /* send packet until proper ack is received */ + while(1) { + elo_putbuf(fd, packet); + + int ret = elo_check_ack(fd); + if( ret == 1 ) // OK + return 0; + if( ret == 0 ) // No receive + return -2; + } +} + +// Set touch screen response packet mode (see #ifdefs in beginning of file). +// +static int elo_set_mode(int fd, unsigned char mode1, unsigned char mode2) +{ + unsigned char packet[8]; + + /* create packet */ + memset(packet, 0, 8); + packet[0]='M'; + packet[2]=mode1; + packet[3]=mode2; + + /* send packet until proper ack is received */ + while(1) { + elo_putbuf(fd, packet); + + int ret = elo_check_ack(fd); + if( ret == 1 ) // OK + return 0; + if( ret == 0 ) // No receive + return -2; + + } +} +// Reset the touch-screen interface. +// +static int elo_reset_touch(int fd) +{ + unsigned char packet[8]; + + /* Send reset command */ + memset(packet, 0, 8); + packet[0]='R'; + packet[1]=1; /* 0=Hard reset, 1=Soft */ + elo_putbuf(fd, packet); + + /* Wait for response */ + if(!elo_check_ack(fd)) + return -1; /* no valid packet received */ + + /* Set the proper mode of operation: + Initial Touch, Range Checking, Calibration, Scaling, and Trim. */ + + elo_set_mode(fd,ELO_M_INITIAL|ELO_M_UNTOUCH|ELO_M_RANGECK, + ELO_M_CALIB|ELO_M_SCALE|ELO_M_TRIM); + + /* Set scaling to 80 x 25 */ + elo_set_scale(fd, 'X', elo_MINX, elo_SCREENWIDTH-1); + elo_set_scale(fd, 'Y', elo_MINY, elo_SCREENHEIGHT-1); + + return 0; +} + +static int eloOpenDevice(char *device) +{ + int fd; + int res; + + if((fd = open(device, O_RDWR|O_NOCTTY)) == -1) + return -1; + + if((flock(fd, LOCK_EX|LOCK_NB)) == -1) { + D_PERROR("DirectFB/elo: Error locking '%s'!\n",device); + close(fd); + return -1; + } + + tty_rawmode(fd,1); + + if((res=elo_reset_touch(fd))) { + close(fd); + return -1; + } + + return fd; +} +// +// +static int eloGetEvent(eloData *event) +{ + unsigned char *ptr; + + /* read in the packet */ + if(!(ptr=elo_getbuf(event->fd))) + return -1; + + if(ptr[0] != 'T') + return -1; + + /* Get touch coordinates */ + event->x = ptr[2]+(ptr[3] << 8); + event->y = ptr[4]+(ptr[5] << 8); + + /* Check for invalid range -- reset touch device if so */ + if(event->x >= event->screen_width + || event->y >= event->screen_height) { + elo_reset_touch(event->fd); + return -1; + } + + event->action = ptr[1]; + + return 0; // valid touch +} + +/* The main routine for elo */ +static void *eloTouchEventThread(DirectThread *thread, void *driver_data) +{ + eloData *data = (eloData *) driver_data; + + /* Read data */ + while (1) { + DFBInputEvent evt; + + if(eloGetEvent(data) == -1) continue; + direct_thread_testcancel(thread); + + /* Dispatch axis */ + evt.type = DIET_AXISMOTION; + evt.flags = DIEF_AXISABS; + evt.axis = DIAI_X; + evt.axisabs = data->x; + dfb_input_dispatch(data->device, &evt); + + evt.type = DIET_AXISMOTION; + evt.flags = DIEF_AXISABS; + evt.axis = DIAI_Y; + evt.axisabs = data->y; + dfb_input_dispatch(data->device, &evt); + + /* Dispatch touch event */ + if(data->action & ELO_M_UNTOUCH) + evt.type = DIET_BUTTONRELEASE; + else + evt.type = DIET_BUTTONPRESS; + + evt.flags = DIEF_NONE; + evt.button = DIBI_LEFT; + + dfb_input_dispatch(data->device, &evt); + direct_thread_testcancel(thread); + } + + return NULL; +} + +/* exported symbols */ + +static int driver_get_available( void ) +{ + int fd; + + /* we will only use the ELO device if it has been configured */ + if(!dfb_config->elo_device) { + return 0; + } + fd = eloOpenDevice (dfb_config->elo_device); + if (fd < 0) { + D_INFO("Elo:driver_get_available NON OK\n"); + return 0; + } + close(fd); + + return 1; +} + +static void driver_get_info( InputDriverInfo *info ) +{ + /* fill driver info structure */ + snprintf(info->name, DFB_INPUT_DRIVER_INFO_NAME_LENGTH, + "elo" ); + snprintf(info->vendor, DFB_INPUT_DRIVER_INFO_VENDOR_LENGTH, + "elo Systems" ); + + info->version.major = 0; + info->version.minor = 2; +} + +static DFBResult driver_open_device(CoreInputDevice *device, + unsigned int number, + InputDeviceInfo *info, + void **driver_data) +{ + int fd; + eloData *data; + + /* open device */ + fd = eloOpenDevice(dfb_config->elo_device); + if(fd < 0) { + D_INFO("DirectFB/elo: Error opening '%s'!\n", dfb_config->elo_device); + return DFB_INIT; + } + + data = D_CALLOC(1, sizeof(eloData)); + if (!data) { + close(fd); + return D_OOM(); + } + + data->fd = fd; + data->device = device; + + /* Must define the correct resolution of screen */ + data->screen_width = elo_SCREENWIDTH; + data->screen_height = elo_SCREENHEIGHT; + + /* The following variable are defined to adjust the orientation of + * the touchscreen. Variables are either max screen height/width or 0. + */ + data->min_x = elo_MINX; + data->min_y = elo_MINY; + + /* fill device info structure */ + snprintf(info->desc.name, DFB_INPUT_DEVICE_DESC_NAME_LENGTH, + "elo"); + snprintf(info->desc.vendor, DFB_INPUT_DEVICE_DESC_VENDOR_LENGTH, + "elo Systems"); + + info->prefered_id = DIDID_MOUSE; + info->desc.type = DIDTF_MOUSE; + info->desc.caps = DICAPS_AXES | DICAPS_BUTTONS; + info->desc.max_axis = DIAI_Y; + info->desc.max_button = DIBI_LEFT; + + /* start input thread */ + data->thread = direct_thread_create (DTT_INPUT, eloTouchEventThread, data, "ELO Touch Input"); + + /* set private data pointer */ + *driver_data = data; + + return DFB_OK; +} + +/* + * Fetch one entry from the device's keymap if supported. + */ +static DFBResult driver_get_keymap_entry(CoreInputDevice *device, + void *driver_data, + DFBInputDeviceKeymapEntry *entry) +{ + return DFB_UNSUPPORTED; +} + +static void driver_close_device(void *driver_data) +{ + eloData *data = (eloData *)driver_data; + + /* stop input thread */ + direct_thread_cancel(data->thread); + direct_thread_join(data->thread); + direct_thread_destroy(data->thread); + + /* restore termnial settings for the port */ + tty_rawmode(data->fd,0); + + /* close device */ + close(data->fd); + + /* free private data */ + D_FREE(data); +} |