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path: root/libopie/odevice.cpp
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-rw-r--r--libopie/odevice.cpp164
1 files changed, 144 insertions, 20 deletions
diff --git a/libopie/odevice.cpp b/libopie/odevice.cpp
index 95fd6bd..6e3f114 100644
--- a/libopie/odevice.cpp
+++ b/libopie/odevice.cpp
@@ -15,36 +15,42 @@
15 along with this library; see the file COPYING.LIB. If not, write to 15 along with this library; see the file COPYING.LIB. If not, write to
16 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, 16 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 Boston, MA 02111-1307, USA. 17 Boston, MA 02111-1307, USA.
18*/ 18*/
19 19
20#include <stdlib.h> 20#include <stdlib.h>
21#include <unistd.h> 21#include <unistd.h>
22#include <fcntl.h> 22#include <fcntl.h>
23#include <sys/ioctl.h> 23#include <sys/ioctl.h>
24#include <signal.h> 24#include <signal.h>
25#include <sys/time.h> 25#include <sys/time.h>
26#include <linux/soundcard.h> 26#include <linux/soundcard.h>
27#include <math.h>
27 28
28#include <qapplication.h> 29#include <qapplication.h>
29 30
30#include <qfile.h> 31#include <qfile.h>
31#include <qtextstream.h> 32#include <qtextstream.h>
32#include <qpe/sound.h> 33#include <qpe/sound.h>
33#include <qpe/resource.h> 34#include <qpe/resource.h>
34#include <qpe/config.h> 35#include <qpe/config.h>
35 36
37#include "odevice.h"
36 38
39// _IO and friends are only defined in kernel headers ...
37 40
38#include "odevice.h" 41#define OD_IO(type,area,number,args) (( type << 30 ) | ( area << 8 ) | ( number ) | ( sizeof( args ) << 16 ))
42#define OD_IOW(area,number,args) OD_IO(1,area,number,args)
43#define OD_IOR(area,number,args) OD_IO(2,area,number,args)
44#define OD_IORW(area,number,args) OD_IO(3,area,number,args)
39 45
40 46
41class ODeviceData { 47class ODeviceData {
42public: 48public:
43 QString m_vendorstr; 49 QString m_vendorstr;
44 OVendor m_vendor; 50 OVendor m_vendor;
45 51
46 QString m_modelstr; 52 QString m_modelstr;
47 OModel m_model; 53 OModel m_model;
48 54
49 QString m_systemstr; 55 QString m_systemstr;
50 OSystem m_system; 56 OSystem m_system;
@@ -52,38 +58,44 @@ public:
52 QString m_sysverstr; 58 QString m_sysverstr;
53 59
54 OLedState m_leds [4]; // just for convenience ... 60 OLedState m_leds [4]; // just for convenience ...
55}; 61};
56 62
57class ODeviceIPAQ : public ODevice { 63class ODeviceIPAQ : public ODevice {
58protected: 64protected:
59 virtual void init ( ); 65 virtual void init ( );
60 66
61public: 67public:
62 virtual bool setPowerButtonHandler ( PowerButtonHandler h ); 68 virtual bool setPowerButtonHandler ( PowerButtonHandler h );
63 69
70 virtual bool setDisplayBrightness ( int b );
71 virtual int displayBrightnessResolution ( ) const;
72
64 virtual void alarmSound ( ); 73 virtual void alarmSound ( );
65 74
66 virtual uint hasLeds ( ) const; 75 virtual uint hasLeds ( ) const;
67 virtual OLedState led ( uint which ) const; 76 virtual OLedState led ( uint which ) const;
68 virtual bool setLed ( uint which, OLedState st ); 77 virtual bool setLed ( uint which, OLedState st );
69}; 78};
70 79
71class ODeviceZaurus : public ODevice { 80class ODeviceZaurus : public ODevice {
72protected: 81protected:
73 virtual void init ( ); 82 virtual void init ( );
74 83
75 public: 84 public:
76 virtual bool setPowerButtonHandler ( PowerButtonHandler h ); 85 virtual bool setPowerButtonHandler ( PowerButtonHandler h );
77 86
87 virtual bool setDisplayBrightness ( int b );
88 virtual int displayBrightnessResolution ( ) const;
89
78 virtual void alarmSound ( ); 90 virtual void alarmSound ( );
79 virtual void keySound ( ); 91 virtual void keySound ( );
80 virtual void touchSound ( ); 92 virtual void touchSound ( );
81 93
82 virtual uint hasLeds ( ) const; 94 virtual uint hasLeds ( ) const;
83 virtual OLedState led ( uint which ) const; 95 virtual OLedState led ( uint which ) const;
84 virtual bool setLed ( uint which, OLedState st ); 96 virtual bool setLed ( uint which, OLedState st );
85 97
86protected: 98protected:
87 virtual void buzzer ( int snd ); 99 virtual void buzzer ( int snd );
88}; 100};
89 101
@@ -98,57 +110,64 @@ ODevice *ODevice::inst ( )
98 if ( QFile::exists ( "/proc/hal/model" )) 110 if ( QFile::exists ( "/proc/hal/model" ))
99 dev = new ODeviceIPAQ ( ); 111 dev = new ODeviceIPAQ ( );
100 else if ( QFile::exists ( "/dev/sharp_buz" ) || QFile::exists ( "/dev/sharp_led" )) 112 else if ( QFile::exists ( "/dev/sharp_buz" ) || QFile::exists ( "/dev/sharp_led" ))
101 dev = new ODeviceZaurus ( ); 113 dev = new ODeviceZaurus ( );
102 else 114 else
103 dev = new ODevice ( ); 115 dev = new ODevice ( );
104 116
105 dev-> init ( ); 117 dev-> init ( );
106 } 118 }
107 return dev; 119 return dev;
108} 120}
109 121
122
123/**************************************************
124 *
125 * common
126 *
127 **************************************************/
128
129
110ODevice::ODevice ( ) 130ODevice::ODevice ( )
111{ 131{
112 d = new ODeviceData; 132 d = new ODeviceData;
113 133
114 d-> m_modelstr = "Unknown"; 134 d-> m_modelstr = "Unknown";
115 d-> m_model = OMODEL_Unknown; 135 d-> m_model = OMODEL_Unknown;
116 d-> m_vendorstr = "Unkown"; 136 d-> m_vendorstr = "Unkown";
117 d-> m_vendor = OVENDOR_Unknown; 137 d-> m_vendor = OVENDOR_Unknown;
118 d-> m_systemstr = "Unkown"; 138 d-> m_systemstr = "Unkown";
119 d-> m_system = OSYSTEM_Unknown; 139 d-> m_system = OSYSTEM_Unknown;
120 d-> m_sysverstr = "0.0"; 140 d-> m_sysverstr = "0.0";
121} 141}
122 142
123void ODevice::init ( ) 143void ODevice::init ( )
124{ 144{
125} 145}
126 146
127ODevice::~ODevice ( ) 147ODevice::~ODevice ( )
128{ 148{
129 delete d; 149 delete d;
130} 150}
131 151
132//#include <linux/apm_bios.h>
133
134//#define APM_IOC_SUSPEND _IO('A',2)
135
136#define APM_IOC_SUSPEND (( 0<<30 ) | ( 'A'<<8 ) | ( 2 ) | ( 0<<16 ))
137
138bool ODevice::setPowerButtonHandler ( ODevice::PowerButtonHandler ) 152bool ODevice::setPowerButtonHandler ( ODevice::PowerButtonHandler )
139{ 153{
140 return false; 154 return false;
141} 155}
142 156
157//#include <linux/apm_bios.h>
158
159#define APM_IOC_SUSPEND OD_IO( 0, 'A', 2, 0 )
160
161
143bool ODevice::suspend ( ) 162bool ODevice::suspend ( )
144{ 163{
145 if ( d-> m_model == OMODEL_Unknown ) // better don't suspend in qvfb / on unkown devices 164 if ( d-> m_model == OMODEL_Unknown ) // better don't suspend in qvfb / on unkown devices
146 return false; 165 return false;
147 166
148 int fd; 167 int fd;
149 bool res = false; 168 bool res = false;
150 169
151 if ((( fd = ::open ( "/dev/apm_bios", O_RDWR )) >= 0 ) || 170 if ((( fd = ::open ( "/dev/apm_bios", O_RDWR )) >= 0 ) ||
152 (( fd = ::open ( "/dev/misc/apm_bios",O_RDWR )) >= 0 )) { 171 (( fd = ::open ( "/dev/misc/apm_bios",O_RDWR )) >= 0 )) {
153 struct timeval tvs, tvn; 172 struct timeval tvs, tvn;
154 173
@@ -168,24 +187,59 @@ bool ODevice::suspend ( )
168 } while ((( tvn. tv_sec - tvs. tv_sec ) * 1000 + ( tvn. tv_usec - tvs. tv_usec ) / 1000 ) < 1500 ); 187 } while ((( tvn. tv_sec - tvs. tv_sec ) * 1000 + ( tvn. tv_usec - tvs. tv_usec ) / 1000 ) < 1500 );
169 188
170 ::kill ( -::getpid ( ), SIGCONT ); // continue everything in our process group 189 ::kill ( -::getpid ( ), SIGCONT ); // continue everything in our process group
171 } 190 }
172 191
173 ::close ( fd ); 192 ::close ( fd );
174 ::signal ( SIGTSTP, SIG_DFL ); 193 ::signal ( SIGTSTP, SIG_DFL );
175 } 194 }
176 195
177 return res; 196 return res;
178} 197}
179 198
199//#include <linux/fb.h> better not rely on kernel headers in userspace ...
200
201#define FBIOBLANK OD_IO( 0, 'F', 0x11, 0 ) // 0x4611
202
203/* VESA Blanking Levels */
204#define VESA_NO_BLANKING 0
205#define VESA_VSYNC_SUSPEND 1
206#define VESA_HSYNC_SUSPEND 2
207#define VESA_POWERDOWN 3
208
209
210bool ODevice::setDisplayStatus ( bool on )
211{
212 if ( d-> m_model == OMODEL_Unknown )
213 return false;
214
215 bool res = false;
216 int fd;
217
218 if (( fd = ::open ( "/dev/fb0", O_RDWR )) >= 0 ) {
219 res = ( ::ioctl ( fd, FBIOBLANK, on ? VESA_NO_BLANKING : VESA_POWERDOWN ) == 0 );
220 ::close ( fd );
221 }
222 return res;
223}
224
225bool ODevice::setDisplayBrightness ( int )
226{
227 return false;
228}
229
230int ODevice::displayBrightnessResolution ( ) const
231{
232 return 16;
233}
180 234
181QString ODevice::vendorString ( ) 235QString ODevice::vendorString ( )
182{ 236{
183 return d-> m_vendorstr; 237 return d-> m_vendorstr;
184} 238}
185 239
186OVendor ODevice::vendor ( ) 240OVendor ODevice::vendor ( )
187{ 241{
188 return d-> m_vendor; 242 return d-> m_vendor;
189} 243}
190 244
191QString ODevice::modelString ( ) 245QString ODevice::modelString ( )
@@ -234,53 +288,54 @@ void ODevice::keySound ( )
234 if ( snd. isFinished ( )) 288 if ( snd. isFinished ( ))
235 snd. play ( ); 289 snd. play ( );
236#endif 290#endif
237#endif 291#endif
238} 292}
239 293
240void ODevice::touchSound ( ) 294void ODevice::touchSound ( )
241{ 295{
242 296
243#ifndef QT_QWS_EBX 297#ifndef QT_QWS_EBX
244#ifndef QT_NO_SOUND 298#ifndef QT_NO_SOUND
245 static Sound snd ( "touchsound" ); 299 static Sound snd ( "touchsound" );
246//qDebug("touchSound"); 300
247 if ( snd. isFinished ( )) { 301 if ( snd. isFinished ( ))
248 snd. play ( ); 302 snd. play ( );
249 // qDebug("sound should play");
250 }
251#endif 303#endif
252#endif 304#endif
253} 305}
254 306
255uint ODevice::hasLeds ( ) const 307uint ODevice::hasLeds ( ) const
256{ 308{
257 return 0; 309 return 0;
258} 310}
259 311
260OLedState ODevice::led ( uint /*which*/ ) const 312OLedState ODevice::led ( uint /*which*/ ) const
261{ 313{
262 return OLED_Off; 314 return OLED_Off;
263} 315}
264 316
265bool ODevice::setLed ( uint /*which*/, OLedState /*st*/ ) 317bool ODevice::setLed ( uint /*which*/, OLedState /*st*/ )
266{ 318{
267 return false; 319 return false;
268} 320}
269 321
270 322
271 323
272 324
273//#if defined( QT_QWS_IPAQ ) // IPAQ 325/**************************************************
274 326 *
327 * iPAQ
328 *
329 **************************************************/
275 330
276void ODeviceIPAQ::init ( ) 331void ODeviceIPAQ::init ( )
277{ 332{
278 d-> m_vendorstr = "HP"; 333 d-> m_vendorstr = "HP";
279 d-> m_vendor = OVENDOR_HP; 334 d-> m_vendor = OVENDOR_HP;
280 335
281 QFile f ( "/proc/hal/model" ); 336 QFile f ( "/proc/hal/model" );
282 337
283 if ( f. open ( IO_ReadOnly )) { 338 if ( f. open ( IO_ReadOnly )) {
284 QTextStream ts ( &f ); 339 QTextStream ts ( &f );
285 340
286 d-> m_modelstr = "H" + ts. readLine ( ); 341 d-> m_modelstr = "H" + ts. readLine ( );
@@ -306,35 +361,39 @@ void ODeviceIPAQ::init ( )
306 361
307 QTextStream ts ( &f ); 362 QTextStream ts ( &f );
308 d-> m_sysverstr = ts. readLine ( ). mid ( 10 ); 363 d-> m_sysverstr = ts. readLine ( ). mid ( 10 );
309 364
310 f. close ( ); 365 f. close ( );
311 } 366 }
312 367
313 d-> m_leds [0] = OLED_Off; 368 d-> m_leds [0] = OLED_Off;
314} 369}
315 370
316//#include <linux/h3600_ts.h> // including kernel headers is evil ... 371//#include <linux/h3600_ts.h> // including kernel headers is evil ...
317 372
318typedef struct h3600_ts_led { 373typedef struct {
319 unsigned char OffOnBlink; /* 0=off 1=on 2=Blink */ 374 unsigned char OffOnBlink; /* 0=off 1=on 2=Blink */
320 unsigned char TotalTime; /* Units of 5 seconds */ 375 unsigned char TotalTime; /* Units of 5 seconds */
321 unsigned char OnTime; /* units of 100m/s */ 376 unsigned char OnTime; /* units of 100m/s */
322 unsigned char OffTime; /* units of 100m/s */ 377 unsigned char OffTime; /* units of 100m/s */
323} LED_IN; 378} LED_IN;
324 379
380typedef struct {
381 unsigned char mode;
382 unsigned char pwr;
383 unsigned char brightness;
384} FLITE_IN;
325 385
326// #define IOC_H3600_TS_MAGIC 'f' 386#define LED_ON OD_IOW( 'f', 5, LED_IN )
327// #define LED_ON _IOW(IOC_H3600_TS_MAGIC, 5, struct h3600_ts_led) 387#define FLITE_ON OD_IOW( 'f', 7, FLITE_IN )
328#define LED_ON (( 1<<30 ) | ( 'f'<<8 ) | ( 5 ) | ( sizeof(struct h3600_ts_led)<<16 )) // _IOW only defined in kernel headers :(
329 388
330 389
331void ODeviceIPAQ::alarmSound ( ) 390void ODeviceIPAQ::alarmSound ( )
332{ 391{
333#if defined( QT_QWS_IPAQ ) // IPAQ 392#if defined( QT_QWS_IPAQ ) // IPAQ
334#ifndef QT_NO_SOUND 393#ifndef QT_NO_SOUND
335 static Sound snd ( "alarm" ); 394 static Sound snd ( "alarm" );
336 int fd; 395 int fd;
337 int vol; 396 int vol;
338 bool vol_reset = false; 397 bool vol_reset = false;
339 398
340 if ((( fd = ::open ( "/dev/sound/mixer", O_RDWR )) >= 0 ) || 399 if ((( fd = ::open ( "/dev/sound/mixer", O_RDWR )) >= 0 ) ||
@@ -381,25 +440,25 @@ OLedState ODeviceIPAQ::led ( uint which ) const
381 if ( which == 0 ) 440 if ( which == 0 )
382 return d-> m_leds [0]; 441 return d-> m_leds [0];
383 else 442 else
384 return OLED_Off; 443 return OLED_Off;
385} 444}
386 445
387bool ODeviceIPAQ::setLed ( uint which, OLedState st ) 446bool ODeviceIPAQ::setLed ( uint which, OLedState st )
388{ 447{
389 static int fd = ::open ( "/dev/touchscreen/0", O_RDWR|O_NONBLOCK ); 448 static int fd = ::open ( "/dev/touchscreen/0", O_RDWR|O_NONBLOCK );
390 449
391 if ( which == 0 ) { 450 if ( which == 0 ) {
392 if ( fd >= 0 ) { 451 if ( fd >= 0 ) {
393 struct h3600_ts_led leds; 452 LED_IN leds;
394 ::memset ( &leds, 0, sizeof( leds )); 453 ::memset ( &leds, 0, sizeof( leds ));
395 leds. TotalTime = 0; 454 leds. TotalTime = 0;
396 leds. OnTime = 0; 455 leds. OnTime = 0;
397 leds. OffTime = 1; 456 leds. OffTime = 1;
398 leds. OffOnBlink = 2; 457 leds. OffOnBlink = 2;
399 458
400 switch ( st ) { 459 switch ( st ) {
401 case OLED_Off : leds. OffOnBlink = 0; break; 460 case OLED_Off : leds. OffOnBlink = 0; break;
402 case OLED_On : leds. OffOnBlink = 1; break; 461 case OLED_On : leds. OffOnBlink = 1; break;
403 case OLED_BlinkSlow: leds. OnTime = 10; leds. OffTime = 10; break; 462 case OLED_BlinkSlow: leds. OnTime = 10; leds. OffTime = 10; break;
404 case OLED_BlinkFast: leds. OnTime = 5; leds. OffTime = 5; break; 463 case OLED_BlinkFast: leds. OnTime = 5; leds. OffTime = 5; break;
405 } 464 }
@@ -424,25 +483,62 @@ bool ODeviceIPAQ::setPowerButtonHandler ( ODevice::PowerButtonHandler p )
424 else 483 else
425 ::perror ( "write to /proc/sys/ts/suspend_button_mode" ); 484 ::perror ( "write to /proc/sys/ts/suspend_button_mode" );
426 485
427 ::close ( fd ); 486 ::close ( fd );
428 } 487 }
429 else 488 else
430 ::perror ( "/proc/sys/ts/suspend_button_mode" ); 489 ::perror ( "/proc/sys/ts/suspend_button_mode" );
431 490
432 return res; 491 return res;
433} 492}
434 493
435 494
495bool ODeviceIPAQ::setDisplayBrightness ( int bright )
496{
497 bool res = false;
498 int fd;
499
500 if ( bright > 255 )
501 bright = 255;
502 if ( bright < 0 )
503 bright = 0;
504
505 // 128 is the maximum if you want a decent lifetime for the LCD
506
507 bright = (int) (( ::pow ( 2, double( bright ) / 255.0 ) - 1 ) * 128.0 ); // logarithmic
508 //bright = ( bright + 1 ) / 2;
509
510 if ((( fd = ::open ( "/dev/ts", O_WRONLY )) >= 0 ) ||
511 (( fd = ::open ( "/dev/h3600_ts", O_WRONLY )) >= 0 )) {
512 FLITE_IN bl;
513 bl. mode = 1;
514 bl. pwr = bright ? 1 : 0;
515 bl. brightness = bright;
516 res = ( ::ioctl ( fd, FLITE_ON, &bl ) == 0 );
517 ::close ( fd );
518 }
519 return res;
520}
521
522int ODeviceIPAQ::displayBrightnessResolution ( ) const
523{
524 return 255; // really 128, but logarithmic control is smoother this way
525}
526
436 527
528/**************************************************
529 *
530 * Zaurus
531 *
532 **************************************************/
437 533
438 534
439 535
440void ODeviceZaurus::init ( ) 536void ODeviceZaurus::init ( )
441{ 537{
442 d-> m_modelstr = "Zaurus SL5000"; 538 d-> m_modelstr = "Zaurus SL5000";
443 d-> m_model = OMODEL_Zaurus_SL5000; 539 d-> m_model = OMODEL_Zaurus_SL5000;
444 d-> m_vendorstr = "Sharp"; 540 d-> m_vendorstr = "Sharp";
445 d-> m_vendor = OVENDOR_Sharp; 541 d-> m_vendor = OVENDOR_Sharp;
446 542
447 QFile f ( "/proc/filesystems" ); 543 QFile f ( "/proc/filesystems" );
448 544
@@ -511,28 +607,29 @@ typedef struct sharp_led_status {
511 int which; /* select which LED status is wanted. */ 607 int which; /* select which LED status is wanted. */
512 int status; /* set new led status if you call SHARP_LED_SETSTATUS */ 608 int status; /* set new led status if you call SHARP_LED_SETSTATUS */
513} sharp_led_status; 609} sharp_led_status;
514 610
515#define SHARP_LED_MAIL_EXISTS 9 /* mail status (exists or not) */ 611#define SHARP_LED_MAIL_EXISTS 9 /* mail status (exists or not) */
516 612
517#define LED_MAIL_NO_UNREAD_MAIL 0 /* for SHARP_LED_MAIL_EXISTS */ 613#define LED_MAIL_NO_UNREAD_MAIL 0 /* for SHARP_LED_MAIL_EXISTS */
518#define LED_MAIL_NEWMAIL_EXISTS 1 /* for SHARP_LED_MAIL_EXISTS */ 614#define LED_MAIL_NEWMAIL_EXISTS 1 /* for SHARP_LED_MAIL_EXISTS */
519#define LED_MAIL_UNREAD_MAIL_EX 2 /* for SHARP_LED_MAIL_EXISTS */ 615#define LED_MAIL_UNREAD_MAIL_EX 2 /* for SHARP_LED_MAIL_EXISTS */
520 616
521// #include <asm/sharp_apm.h> // including kernel headers is evil ... 617// #include <asm/sharp_apm.h> // including kernel headers is evil ...
522 618
523#define APM_IOCGEVTSRC (( 2 ) | ( 'A'<<8 ) | ( 203 ) | ( sizeof(int) )) 619#define APM_IOCGEVTSRC OD_IOR( 'A', 203, int )
524#define APM_IOCSEVTSRC (( 3 ) | ( 'A'<<8 ) | ( 204 ) | ( sizeof(int) )) 620#define APM_IOCSEVTSRC OD_IORW( 'A', 204, int )
525#define APM_EVT_POWER_BUTTON (1 << 0) 621#define APM_EVT_POWER_BUTTON (1 << 0)
526 622
623#define FL_IOCTL_STEP_CONTRAST 100
527 624
528 625
529void ODeviceZaurus::buzzer ( int sound ) 626void ODeviceZaurus::buzzer ( int sound )
530{ 627{
531 static int fd = ::open ( "/dev/sharp_buz", O_RDWR|O_NONBLOCK ); 628 static int fd = ::open ( "/dev/sharp_buz", O_RDWR|O_NONBLOCK );
532 629
533 if ( fd >= 0 ) 630 if ( fd >= 0 )
534 ::ioctl ( fd, SHARP_BUZZER_MAKESOUND, sound ); 631 ::ioctl ( fd, SHARP_BUZZER_MAKESOUND, sound );
535} 632}
536 633
537 634
538void ODeviceZaurus::alarmSound ( ) 635void ODeviceZaurus::alarmSound ( )
@@ -612,12 +709,39 @@ bool ODeviceZaurus::setPowerButtonHandler ( ODevice::PowerButtonHandler p )
612 perror ( "APM_IOCGEVTSRC" ); 709 perror ( "APM_IOCGEVTSRC" );
613 } 710 }
614 else 711 else
615 perror ( "APM_IOCGEVTSRC" ); 712 perror ( "APM_IOCGEVTSRC" );
616 713
617 ::close ( fd ); 714 ::close ( fd );
618 } 715 }
619 else 716 else
620 perror ( "/dev/apm_bios or /dev/misc/apm_bios" ); 717 perror ( "/dev/apm_bios or /dev/misc/apm_bios" );
621 718
622 return res; 719 return res;
623} 720}
721
722
723bool ODeviceZaurus::setDisplayBrightness ( int bright )
724{
725 bool res = false;
726 int fd;
727
728 if ( bright > 255 )
729 bright = 255;
730 if ( bright < 0 )
731 bright = 0;
732
733 if (( fd = ::open ( "/dev/fl", O_WRONLY )) >= 0 ) {
734 int bl = ( bright * 4 + 127 ) / 255; // only 4 steps on zaurus
735 if ( bright && !bl )
736 bl = 1;
737 res = ( ::ioctl ( fd, FL_IOCTL_STEP_CONTRAST, bl ) == 0 );
738 ::close ( fd );
739 }
740 return res;
741}
742
743
744int ODeviceZaurus::displayBrightnessResolution ( ) const
745{
746 return 4;
747}