diff options
Diffstat (limited to 'Source/DirectFB/inputdrivers/sonypi/sonypi.c')
| -rwxr-xr-x | Source/DirectFB/inputdrivers/sonypi/sonypi.c | 265 |
1 files changed, 265 insertions, 0 deletions
diff --git a/Source/DirectFB/inputdrivers/sonypi/sonypi.c b/Source/DirectFB/inputdrivers/sonypi/sonypi.c new file mode 100755 index 0000000..0632d25 --- /dev/null +++ b/Source/DirectFB/inputdrivers/sonypi/sonypi.c @@ -0,0 +1,265 @@ +/* + (c) Copyright 2001-2009 The world wide DirectFB Open Source Community (directfb.org) + (c) Copyright 2000-2004 Convergence (integrated media) GmbH + + All rights reserved. + + Written by Denis Oliver Kropp <dok@directfb.org>, + Andreas Hundt <andi@fischlustig.de>, + Sven Neumann <neo@directfb.org>, + Ville Syrjälä <syrjala@sci.fi> and + Claudio Ciccani <klan@users.sf.net>. + + 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 <string.h> +#include <unistd.h> +#include <errno.h> + +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/ioctl.h> + +#include <fcntl.h> + +#include <linux/sonypi.h> + +#include <directfb.h> + +#include <core/coredefs.h> +#include <core/coretypes.h> +#include <core/input.h> + +#include <direct/debug.h> +#include <direct/mem.h> +#include <direct/messages.h> +#include <direct/thread.h> + +#include <core/input_driver.h> + + +DFB_INPUT_DRIVER( sonypi ) + +#define DEVICE "/dev/sonypi" + + +/* + * declaration of private data + */ +typedef struct { + CoreInputDevice *device; + DirectThread *thread; + + int fd; +} SonypiData; + + +/* + * Input thread reading from device. + * Generates events on incoming data. + */ +static void* +sonypiEventThread( DirectThread *thread, void *driver_data ) +{ + SonypiData *data = (SonypiData*) driver_data; + int readlen; + u8 buffer[16]; + + /* loop until error occurs except EINTR */ + while ((readlen = read( data->fd, buffer, 16 )) > 0 || errno == EINTR) { + int i; + DFBInputEvent evt; + + direct_thread_testcancel( thread ); + + /* process each byte */ + for (i=0; i<readlen; i++) { + + /* check for jogdial events */ + switch (buffer[i]) { + case SONYPI_EVENT_JOGDIAL_DOWN: + case SONYPI_EVENT_JOGDIAL_UP: + case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED: + case SONYPI_EVENT_JOGDIAL_UP_PRESSED: + evt.type = DIET_AXISMOTION; + evt.axis = DIAI_Z; + evt.flags = DIEF_AXISREL; + + if (buffer[i] == SONYPI_EVENT_JOGDIAL_DOWN || + buffer[i] == SONYPI_EVENT_JOGDIAL_DOWN_PRESSED) + evt.axisrel = 1; + else + evt.axisrel = -1; + + dfb_input_dispatch( data->device, &evt ); + break; + + case SONYPI_EVENT_JOGDIAL_PRESSED: + case SONYPI_EVENT_JOGDIAL_RELEASED: + if (buffer[i] == SONYPI_EVENT_JOGDIAL_PRESSED) + evt.type = DIET_BUTTONPRESS; + else + evt.type = DIET_BUTTONRELEASE; + + evt.flags = DIEF_NONE; /* button is always valid */ + evt.button = DIBI_MIDDLE; + + dfb_input_dispatch( data->device, &evt ); + break; + + default: + ; + } + } + } + + if (readlen < 0) + D_PERROR ("sonypi thread died\n"); + + return NULL; +} + +/* exported symbols */ + +/* + * Return the number of available devices. + * Called once during initialization of DirectFB. + */ +static int +driver_get_available( void ) +{ + int fd; + + /* Check if we are able to open device for reading */ + if ((fd = open( DEVICE, O_RDONLY )) < 0) + return 0; + + close(fd); + + return 1; +} + +/* + * Fill out general information about this driver. + * Called once during initialization of DirectFB. + */ +static void +driver_get_info( InputDriverInfo *info ) +{ + /* fill driver info structure */ + snprintf ( info->name, + DFB_INPUT_DRIVER_INFO_NAME_LENGTH, "SonyPI Jogdial Driver" ); + snprintf ( info->vendor, + DFB_INPUT_DRIVER_INFO_VENDOR_LENGTH, "Denis Oliver Kropp" ); + + info->version.major = 0; + info->version.minor = 1; +} + +/* + * Open the device, fill out information about it, + * allocate and fill private data, start input thread. + * Called during initialization, resuming or taking over mastership. + */ +static DFBResult +driver_open_device( CoreInputDevice *device, + unsigned int number, + InputDeviceInfo *info, + void **driver_data ) +{ + int fd; + SonypiData *data; + + /* open device */ + fd = open( DEVICE, O_RDONLY); + if (fd < 0) { + D_PERROR( "DirectFB/sonypi: could not open device" ); + return DFB_INIT; + } + + /* set device name */ + snprintf( info->desc.name, + DFB_INPUT_DEVICE_DESC_NAME_LENGTH, "PI Jogdial" ); + + /* set device vendor */ + snprintf( info->desc.vendor, + DFB_INPUT_DEVICE_DESC_VENDOR_LENGTH, "Sony" ); + + /* set one of the primary input device IDs */ + info->prefered_id = DIDID_MOUSE; + + /* set type flags */ + info->desc.type = DIDTF_MOUSE; + + /* set capabilities */ + info->desc.caps = DICAPS_BUTTONS | DICAPS_AXES; + info->desc.max_axis = DIAI_Z; + info->desc.max_button = DIBI_MIDDLE; + + + /* allocate and fill private data */ + data = D_CALLOC( 1, sizeof(SonypiData) ); + if (!data) { + close( fd ); + return D_OOM(); + } + + data->fd = fd; + data->device = device; + + /* start input thread */ + data->thread = direct_thread_create( DTT_INPUT, sonypiEventThread, data, "Sony PI 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; +} + +/* + * End thread, close device and free private data. + */ +static void +driver_close_device( void *driver_data ) +{ + SonypiData *data = (SonypiData*) driver_data; + + /* stop input thread */ + direct_thread_cancel( data->thread ); + direct_thread_join( data->thread ); + direct_thread_destroy( data->thread ); + + /* close file */ + close( data->fd ); + + /* free private data */ + D_FREE ( data ); +} + |