diff options
Diffstat (limited to 'Source/DirectFB/inputdrivers/gunze')
| -rwxr-xr-x | Source/DirectFB/inputdrivers/gunze/Makefile.am | 30 | ||||
| -rwxr-xr-x | Source/DirectFB/inputdrivers/gunze/Makefile.in | 592 | ||||
| -rwxr-xr-x | Source/DirectFB/inputdrivers/gunze/gunze.c | 576 |
3 files changed, 1198 insertions, 0 deletions
diff --git a/Source/DirectFB/inputdrivers/gunze/Makefile.am b/Source/DirectFB/inputdrivers/gunze/Makefile.am new file mode 100755 index 0000000..ef0b9e6 --- /dev/null +++ b/Source/DirectFB/inputdrivers/gunze/Makefile.am @@ -0,0 +1,30 @@ +## Makefile.am for DirectFB/inputdrivers/gunze + +INCLUDES = \ + -I$(top_srcdir)/include \ + -I$(top_builddir)/lib \ + -I$(top_srcdir)/lib \ + -I$(top_srcdir)/src + +input_LTLIBRARIES = libdirectfb_gunze.la + +if BUILD_STATIC +input_DATA = $(input_LTLIBRARIES:.la=.o) +endif + +inputdir = $(MODULEDIR)/inputdrivers + +libdirectfb_gunze_la_SOURCES = \ + gunze.c + +libdirectfb_gunze_la_LDFLAGS = \ + -module \ + -avoid-version \ + $(DFB_LDFLAGS) + +libdirectfb_gunze_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/gunze/Makefile.in b/Source/DirectFB/inputdrivers/gunze/Makefile.in new file mode 100755 index 0000000..ceef162 --- /dev/null +++ b/Source/DirectFB/inputdrivers/gunze/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 = $(install_sh) -c -m 644 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$<.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/gunze/gunze.c b/Source/DirectFB/inputdrivers/gunze/gunze.c new file mode 100755 index 0000000..840cd33 --- /dev/null +++ b/Source/DirectFB/inputdrivers/gunze/gunze.c @@ -0,0 +1,576 @@ +/* + (c) Copyright 2005 Gnat Solutions, Inc. + + All rights reserved. + + Written by Nathanael D. Noblet <nathanael@gnat.ca> + + 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. + + This driver is a re-write from the gunze driver provided in XFree86. + Using the MuTouch driver as a skeleton. + + */ + +#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 <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( gunze ) + +#define BUFFER_SIZE 64 /* size of reception buffer */ +#define GUNZE_MAXPHYSCOORD 1023 +#define GUNZE_MAXCOORD (64*1024-1) /* oversampled, synthetic value */ +#define FLAG_TAPPING 1 +#define FLAG_WAS_UP 2 +#define BAUDRATE B9600 + +#define GunzeT_PACKET_SIZE 10 +#define GunzeT_SCREENWIDTH 1024 +#define GunzeT_SCREENHEIGHT 768 +#define GunzeT_MINX 0 +#define GunzeT_MINY 0 +#define GunzeT_DEFAULT_DEVICE "/dev/ttyS0" + +#define GUNZE_PANEL_TOUCH T +#define GUNZE_PANEL_UNTOUCH R + +#define GUNZE_SERIAL_DLEN 11 +#define GUNZE_PS2_DLEN 3 + +#define GUNZE_SECTION_NAME "gunze" +#define GUNZE_DEFAULT_CFGFILE "/etc/gunzets.calib" + +#define SYSCALL(call) while(((call) == -1) && (errno == EINTR)) + +/* +* Serial protocol (11 b): <T-or-R> <4-bytes-for-X> , <4-bytes-for-Y> 0x0d +*/ +typedef struct __GunzeTData__ +{ + const char *gunDevice; /* device file name */ + DirectThread *thread; + CoreInputDevice *device; + unsigned int x; + unsigned int y; + unsigned int screen_width; + unsigned int screen_height; + int flags; /* various flags */ + int gunType; /* TYPE_SERIAL, etc */ + int gunBaud; /* 9600 or 19200 */ + int gunDlen; /* data length (3 or 11) */ + int gunPrevX; /* previous X position */ + int gunPrevY; /* previous Y position */ + int gunSmooth; /* how smooth the motion is */ + int gunTapping; /* move-and-tap (or press-only) not implemented */ + int gunPrevButtonState; /* previous button state */ + int gunBytes; /* number of bytes read */ + unsigned char gunData[16]; /* data read on the device */ + int gunCalib[4]; /* calibration data */ + char *gunConfig; /* filename for configuration */ + int fd; +} GunzeTData; + +enum devicetypeitems { + TYPE_UNKNOWN = 0, + TYPE_SERIAL = 1, + TYPE_PS2, + TYPE_USB +}; + +static int GunzeReadCalib(GunzeTData *priv) +{ + int i=1; + int err = 1; + FILE *f; + priv->gunCalib[0]=priv->gunCalib[1]=priv->gunCalib[2]=priv->gunCalib[3]=0; + f = fopen(priv->gunConfig, "r"); + if (f) + { + char s[80]; + fgets(s, 80, f); /* discard the comment */ + if (fscanf(f, "%d %d %d %d", priv->gunCalib, priv->gunCalib+1, priv->gunCalib+2, priv->gunCalib+3) == 4) + { + D_PERROR("DirectFB/gunze: Calibration invalid 0 i:%d gunCalib[0]:%d \n",i,priv->gunCalib[0]); + err = 0; + } + + for (i=0; i<4; i++) + { + if (priv->gunCalib[i] & ~1023) + { + D_PERROR("DirectFB/gunze: Calibration invalid 0 i:%d gunCalib[i]:%d \n",i,priv->gunCalib[i]); + err++; + } + if (abs(priv->gunCalib[0] - priv->gunCalib[2]) < 100) + { + D_PERROR("DirectFB/gunze: Calibration invalid 1 0:%d 2:%d abs(%d)\n",priv->gunCalib[0],priv->gunCalib[2],abs(priv->gunCalib[0] - priv->gunCalib[2])); + err++; + } + if (abs(priv->gunCalib[1] - priv->gunCalib[3]) < 100) + { + D_PERROR("DirectFB/gunze: Calibration invalid 2 1:%d 3:%d abs(%d)\n",priv->gunCalib[1],priv->gunCalib[3],abs(priv->gunCalib[1] - priv->gunCalib[3])); + err++; + } + fclose(f); + } + } + if (err) + { + D_PERROR("DirectFB/gunze: Calibration data absent or invalid, using defaults\n"); + priv->gunCalib[0] = priv->gunCalib[1] = 128; /* 1/8 */ + priv->gunCalib[2] = priv->gunCalib[3] = 896; /* 7/8 */ + } + return 0; +} + +static int GunzeSetToOptimalCTRL(int file) +{ + struct termios newtio; + int err; + + SYSCALL(err = tcgetattr(file, &newtio)); + + if (err == -1) { + D_PERROR("DirectFB/gunze: Gunze touch screen tcgetattr failed\n"); + return 0; + } + + memset(&newtio,0, sizeof(newtio)); /* clear struct for new port settings */ +/* + BAUDRATE: Set bps rate. You could also use cfsetispeed and cfsetospeed. + CRTSCTS : output hardware flow control (only used if the cable has + all necessary lines. See sect. 7 of Serial-HOWTO) + CS8 : 8n1 (8bit,no parity,1 stopbit) + CLOCAL : local connection, no modem contol + CREAD : enable receiving characters +*/ + newtio.c_cflag = BAUDRATE | CRTSCTS | CS8 | CLOCAL | CREAD; +/* + IGNPAR : ignore bytes with parity errors + ICRNL : map CR to NL (otherwise a CR input on the other computer will not terminate input) + otherwise make device raw (no other input processing) +*/ + newtio.c_iflag = IGNPAR | ICRNL; +/* Raw output */ + newtio.c_oflag = 0; +/* + ICANON : enable canonical input + disable all echo functionality, and don't send signals to calling program +*/ + newtio.c_lflag = ICANON; + +/* + initialize all control characters + default values can be found in /usr/include/termios.h, and are given + in the comments, but we don't need them here +*/ + newtio.c_cc[VINTR] = 0; /* Ctrl-c */ + newtio.c_cc[VQUIT] = 0; /* Ctrl-\ */ + newtio.c_cc[VERASE] = 0; /* del */ + newtio.c_cc[VKILL] = 0; /* @ */ + newtio.c_cc[VEOF] = 4; /* Ctrl-d */ + newtio.c_cc[VTIME] = 0; /* inter-character timer unused */ + newtio.c_cc[VMIN] = 1; /* blocking read until 1 character arrives */ + newtio.c_cc[VSWTC] = 0; /* '\0' */ + newtio.c_cc[VSTART] = 0; /* Ctrl-q */ + newtio.c_cc[VSTOP] = 0; /* Ctrl-s */ + newtio.c_cc[VSUSP] = 0; /* Ctrl-z */ + newtio.c_cc[VEOL] = 0; /* '\0' */ + newtio.c_cc[VREPRINT] = 0; /* Ctrl-r */ + newtio.c_cc[VDISCARD] = 0; /* Ctrl-u */ + newtio.c_cc[VWERASE] = 0; /* Ctrl-w */ + newtio.c_cc[VLNEXT] = 0; /* Ctrl-v */ + newtio.c_cc[VEOL2] = 0; /* '\0' */ + + /* now clean the modem line and activate the settings for the port */ + + tcflush(file, TCIFLUSH); + err = tcsetattr(file, TCSANOW, &newtio); + if (err == -1) { + D_PERROR("DirectFB/gunze: Gunze touch screen tcsetattr TCSANOW failed\n"); + return 0; + } + + return 1; +} + +static int GunzeOpenDevice(const char *device) +{ + int fd; + int res; + + /* opens device */ + SYSCALL(fd = open(device, O_RDWR | O_NOCTTY)); + if (fd == -1) + { + D_PERROR("DirectFB/gunze: Error opening device %s\n",device); + return fd; + } + + /* setup termios settings for communication */ + if((res = GunzeSetToOptimalCTRL(fd)) == 0) + { + close(fd); + return res; + } + + return fd; +} + +/* The main routine for GunzeTouch */ +static void *GunzeTouchEventThread(DirectThread *thread, void *driver_data) +{ + GunzeTData *priv = (GunzeTData *) driver_data; + unsigned char *pkt = priv->gunData; + int len, loop; + int x =0; + int y =0; + int button =0; + int *calib = priv->gunCalib; + unsigned char buffer[BUFFER_SIZE]; + + while ((len = read( priv->fd, buffer, BUFFER_SIZE)) >= 0 || errno == EINTR) + { + + if (len <= 0) + { + D_PERROR("DirectFB/gunze: error reading Gunze touch screen device %d %d\n",errno,priv->fd); + perror(NULL); + return NULL; + } + + for(loop=0; loop<len; loop++) + { + /* if first byte, ensure that the packet is syncronized */ + if (priv->gunBytes == 0) + { + int error = 0; + if (priv->gunDlen == GUNZE_SERIAL_DLEN) + { + /* First byte is 'R' (0x52) or 'T' (0x54) */ + if ((buffer[loop] != 'R') && (buffer[loop] != 'T')) + error = 1; + } + /* PS/2 / USB Unsupported for now (basically I don't have one, and didn't test adding support will be trivial + else + { + if ( !(buffer[loop] & 0x80) || (len > loop+1 && !(buffer[loop+1] & 0x80)) || (len > loop+2 && (buffer[loop+2] & 0x80))) + error = 1; + } + */ + if (error) + { + D_PERROR("DirectFB/gunze: GunzeReadInput: bad first byte 0x%x %c\n",buffer[loop],buffer[loop]); + continue; + } + } + + pkt[priv->gunBytes++] = buffer[loop]; + + /* Hack: sometimes a serial packet gets corrupted. If so, drop it */ + if (buffer[loop] == 0x0d && priv->gunBytes != priv->gunDlen && priv->gunDlen == GUNZE_SERIAL_DLEN) + { + pkt[priv->gunBytes-1] = '\0'; + D_PERROR("DirectFB/gunze: Bad packet \"%s\" dropping it\n", pkt); + priv->gunBytes = 0; + continue; + } + + /* if whole packet collected, decode it */ + if (priv->gunBytes == priv->gunDlen) + { + DFBInputEvent evt; + + priv->gunBytes = 0; + if (priv->gunDlen == GUNZE_SERIAL_DLEN) + { + /* if T button == true */ + button = (pkt[0] == 'T'); + x = atoi((char *)pkt+1); + y = atoi((char *)pkt+6); + } + /* USB version which I haven't added support for + else + { + button = (pkt[2] & 0x40); + x = ((pkt[0] & 0x7f) << 3) | ((pkt[1] & 0x70) >> 4); + y = ((pkt[1] & 0x0f) << 6) | ((pkt[2] & 0x3f)); + } + */ + + if (x>1023 || x<0 || y>1023 || y<0) + { + D_PERROR("DirectFB/gunze: Bad packet \"%s\" -> %i,%i\n", pkt, x, y); + + priv->gunBytes = 0; + continue; + } + + /* + Ok, now that we have raw data, turn it to real data + according to calibration, smoothness, tapping and debouncing + calibrate and rescale (by multiplying by 64) + + I don't fully understand this, came from xf86Gunze.c + x = 64*128 + 64*768 * (x - calib[0])/(calib[2]-calib[0]); + y = 64*128 + 64*768 * (y - calib[1])/(calib[3]-calib[1]); + */ + + x = 8192 + 49152 * (x - calib[0])/(calib[2]-calib[0]); + y = 8192 + 49152 * (y - calib[1])/(calib[3]-calib[1]); + y = GUNZE_MAXCOORD - y; + /* smooth it down, unless first touch */ + if (!(priv->flags & FLAG_WAS_UP)) + { + x = (priv->gunPrevX * priv->gunSmooth + x)/(priv->gunSmooth+1); + y = (priv->gunPrevY * priv->gunSmooth + y)/(priv->gunSmooth+1); + } + + /* convert gunze x/y to screen dimensions */ + x = x * priv->screen_width / (GUNZE_MAXCOORD); + y = y * priv->screen_height / (GUNZE_MAXCOORD); + if (x < 0) x = 0; + if (y < 0) y = 0; + if (x > priv->screen_width) x = priv->screen_width; + if (y > priv->screen_height) y = priv->screen_height; + + if (!button) + priv->flags |= FLAG_WAS_UP; + else + priv->flags &= ~FLAG_WAS_UP; + + /* Now send events */ + + /* only post new x/y if different from previous tap */ + if ( (priv->gunPrevX != x) || (priv->gunPrevY != y) ) + { + direct_thread_testcancel (thread); + /* Dispatch axis */ + evt.type = DIET_AXISMOTION; + evt.flags = DIEF_AXISABS; + evt.axis = DIAI_X; + evt.axisabs = x; + dfb_input_dispatch (priv->device, &evt); + + evt.type = DIET_AXISMOTION; + evt.flags = DIEF_AXISABS; + evt.axis = DIAI_Y; + evt.axisabs = y; + dfb_input_dispatch (priv->device, &evt); + direct_thread_testcancel (thread); + /*printf("dispatched motion x %d y %d\n",x,y);*/ + } + /* post button state change at x/y */ + if (priv->gunPrevButtonState != button) + { + direct_thread_testcancel (thread); + + /* Dispatch axis */ + evt.type = DIET_AXISMOTION; + evt.flags = DIEF_AXISABS; + evt.axis = DIAI_X; + evt.axisabs = x; + dfb_input_dispatch (priv->device, &evt); + + evt.type = DIET_AXISMOTION; + evt.flags = DIEF_AXISABS; + evt.axis = DIAI_Y; + evt.axisabs = y; + dfb_input_dispatch (priv->device, &evt); + + /* Dispatch touch event */ + evt.type = (button) ? DIET_BUTTONPRESS:DIET_BUTTONRELEASE; + evt.flags = DIEF_NONE; + evt.button = DIBI_LEFT; + + dfb_input_dispatch (priv->device, &evt); + direct_thread_testcancel (thread); + /* printf("dispatched button x %d y %d\n",x,y); */ + } + + /* remember data */ + priv->gunPrevButtonState = button; + priv->gunPrevX = x; + priv->gunPrevY = y; + + } + } + } + + return NULL; +} + +/* exported symbols */ + +static int driver_get_available( void ) +{ + int fd; + /* + if (!dfb_config->gunze_device){ + D_PERROR("DirectFB/GunzeTouch: Missing Gunze device file using default %s!\n",GunzeT_DEFAULT_DEVICE); + fflush(NULL); + }*/ + +/* + if (!dfb_config->gunze_device) + return 0; + */ + /* TODO gotta clean this up... seems odd to open & close it like this... */ + //fd = GunzeOpenDevice (dfb_config->gunze_device); + fd = GunzeOpenDevice(GunzeT_DEFAULT_DEVICE); + if (fd < 0) + 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,"gunze" ); + snprintf(info->vendor, DFB_INPUT_DRIVER_INFO_VENDOR_LENGTH,"Gunze" ); + + info->version.major = 0; + info->version.minor = 1; +} + +static DFBResult driver_open_device(CoreInputDevice *device, + unsigned int number, + InputDeviceInfo *info, + void **driver_data) +{ + int fd; + GunzeTData *data = NULL; + const char *devname = GunzeT_DEFAULT_DEVICE; + + +// if (!dfb_config->gunze_device) +// D_PERROR("DirectFB/GunzeTouch: Missing Gunze device file using default %s!\n",GunzeT_DEFAULT_DEVICE); + + + /* open device */ + fd = GunzeOpenDevice (devname); + + if (fd < 0) { + D_PERROR("DirectFB/GunzeTouch: Error opening '%s'!\n", devname); + return DFB_INIT; + } + + data = D_CALLOC (1, sizeof(GunzeTData)); + if (!data) { + close (fd); + return D_OOM (); + } + + data->fd = fd; + data->device = device; + data->gunDevice= devname; + /* hard coded... */ + data->gunType = TYPE_SERIAL; + data->gunDlen = GUNZE_SERIAL_DLEN; + /* Must define the correct resolution of screen */ + data->screen_width = GunzeT_SCREENWIDTH; + data->screen_height = GunzeT_SCREENHEIGHT; + data->gunConfig = GUNZE_DEFAULT_CFGFILE;//(!dfb_config->gunze_calibration_file)?GUNZE_DEFAULT_CFGFILE:dfb_config->gunze_calibration_file; + + /* The following variable are defined to adjust the orientation of + * the touchscreen. Variables are either max screen height/width or 0. + * don't know how to use this as it was taken from mutouch likely not needed... + + data->min_x = GunzeT_MINX; + data->min_y = GunzeT_MINY; +*/ + /* grab calibration data */ + GunzeReadCalib(data); + + /* fill device info structure */ + snprintf(info->desc.name, DFB_INPUT_DEVICE_DESC_NAME_LENGTH,"gunze"); + snprintf(info->desc.vendor, DFB_INPUT_DEVICE_DESC_VENDOR_LENGTH,"Gunze"); + + 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, GunzeTouchEventThread, data, "GunzeTouch 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) +{ + GunzeTData *data = (GunzeTData *)driver_data; + + /* stop input thread */ + direct_thread_cancel (data->thread); + direct_thread_join (data->thread); + direct_thread_destroy (data->thread); + + /* close device */ + close (data->fd); + + /* free private data */ + D_FREE (data); +} + |