Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1/*****************************************************************************
2* *
3* easycap.h *
4* *
5*****************************************************************************/
6/*
7 *
8 * Copyright (C) 2010 R.M. Thomas <rmthomas@sciolus.org>
9 *
10 *
11 * This is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 *
16 * The software is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this software; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 *
25*/
26/*****************************************************************************/
27/*---------------------------------------------------------------------------*/
28/*
29 * THE FOLLOWING PARAMETERS ARE UNDEFINED:
30 *
31 * EASYCAP_DEBUG
32 * EASYCAP_IS_VIDEODEV_CLIENT
33 * EASYCAP_NEEDS_USBVIDEO_H
34 * EASYCAP_NEEDS_V4L2_DEVICE_H
35 * EASYCAP_NEEDS_V4L2_FOPS
36 *
37 * IF REQUIRED THEY MUST BE EXTERNALLY DEFINED, FOR EXAMPLE AS COMPILER
38 * OPTIONS.
39 */
40/*---------------------------------------------------------------------------*/
41
42#if (!defined(EASYCAP_H))
43#define EASYCAP_H
44
45#if defined(EASYCAP_DEBUG)
46#if (9 < EASYCAP_DEBUG)
47#error Debug levels 0 to 9 are okay.\
48 To achieve higher levels, remove this trap manually from easycap.h
49#endif
50#endif /*EASYCAP_DEBUG*/
51/*---------------------------------------------------------------------------*/
52/*
53 * THESE ARE FOR MAINTENANCE ONLY - NORMALLY UNDEFINED:
54 */
55/*---------------------------------------------------------------------------*/
56#undef PREFER_NTSC
57#undef EASYCAP_TESTCARD
58#undef EASYCAP_TESTTONE
59#undef LOCKFRAME
60#undef NOREADBACK
61#undef AUDIOTIME
62/*---------------------------------------------------------------------------*/
63/*
64 *
65 * DEFINE BRIDGER TO ACTIVATE THE ROUTINE FOR BRIDGING VIDEOTAPE DROPOUTS.
66 *
67 * *** UNDER DEVELOPMENT/TESTING - NOT READY YET!***
68 *
69 */
70/*---------------------------------------------------------------------------*/
71#undef BRIDGER
72/*---------------------------------------------------------------------------*/
73
74#include <linux/kernel.h>
75#include <linux/errno.h>
76#include <linux/init.h>
77#include <linux/slab.h>
78#include <linux/module.h>
79#include <linux/kref.h>
80#include <linux/smp_lock.h>
81#include <linux/usb.h>
82#include <linux/uaccess.h>
83
84#include <linux/i2c.h>
85#include <linux/version.h>
86#include <linux/workqueue.h>
87#include <linux/poll.h>
88#include <linux/mm.h>
89#include <linux/fs.h>
90#include <linux/delay.h>
91#include <linux/types.h>
92
93/*vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv*/
94#if defined(EASYCAP_IS_VIDEODEV_CLIENT)
95#if (!defined(__OLD_VIDIOC_))
96#define __OLD_VIDIOC_
97#endif /* !defined(__OLD_VIDIOC_) */
98
99#include <media/v4l2-dev.h>
100
101#if defined(EASYCAP_NEEDS_V4L2_DEVICE_H)
102#include <media/v4l2-device.h>
103#endif /*EASYCAP_NEEDS_V4L2_DEVICE_H*/
104#endif /*EASYCAP_IS_VIDEODEV_CLIENT*/
105/*^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^*/
106
107#if (!defined(__OLD_VIDIOC_))
108#define __OLD_VIDIOC_
109#endif /* !defined(__OLD_VIDIOC_) */
110#include <linux/videodev2.h>
111
112#include <linux/soundcard.h>
113
114#if defined(EASYCAP_NEEDS_USBVIDEO_H)
115#include <config/video/usbvideo.h>
116#endif /*EASYCAP_NEEDS_USBVIDEO_H*/
117
118#if (!defined(PAGE_SIZE))
119#error "PAGE_SIZE not defined"
120#endif
121
122#define STRINGIZE_AGAIN(x) #x
123#define STRINGIZE(x) STRINGIZE_AGAIN(x)
124
125/*---------------------------------------------------------------------------*/
126/* VENDOR, PRODUCT: Syntek Semiconductor Co., Ltd
127 *
128 * EITHER EasyCAP USB 2.0 Video Adapter with Audio, Model No. DC60
129 * with input cabling: AUDIO(L), AUDIO(R), CVBS, S-VIDEO.
130 *
131 * OR EasyCAP 4CHANNEL USB 2.0 DVR, Model No. EasyCAP002
132 * with input cabling: MICROPHONE, CVBS1, CVBS2, CVBS3, CVBS4.
133 */
134/*---------------------------------------------------------------------------*/
135#define USB_EASYCAP_VENDOR_ID 0x05e1
136#define USB_EASYCAP_PRODUCT_ID 0x0408
137
138#define EASYCAP_DRIVER_VERSION "0.8.21"
139#define EASYCAP_DRIVER_DESCRIPTION "easycapdc60"
140
141#define USB_SKEL_MINOR_BASE 192
142#define VIDEO_DEVICE_MANY 8
143
144/*---------------------------------------------------------------------------*/
145/*
146 * DEFAULT LUMINANCE, CONTRAST, SATURATION AND HUE
147 */
148/*---------------------------------------------------------------------------*/
149#define SAA_0A_DEFAULT 0x7F
150#define SAA_0B_DEFAULT 0x3F
151#define SAA_0C_DEFAULT 0x2F
152#define SAA_0D_DEFAULT 0x00
153/*---------------------------------------------------------------------------*/
154/*
155 * VIDEO STREAMING PARAMETERS:
156 * USB 2.0 PROVIDES FOR HIGH-BANDWIDTH ENDPOINTS WITH AN UPPER LIMIT
157 * OF 3072 BYTES PER MICROFRAME for wMaxPacketSize.
158 */
159/*---------------------------------------------------------------------------*/
160#define VIDEO_ISOC_BUFFER_MANY 16
161#define VIDEO_ISOC_ORDER 3
162#define VIDEO_ISOC_FRAMESPERDESC ((unsigned int) 1 << VIDEO_ISOC_ORDER)
163#define USB_2_0_MAXPACKETSIZE 3072
164#if (USB_2_0_MAXPACKETSIZE > PAGE_SIZE)
165#error video_isoc_buffer[.] will not be big enough
166#endif
167/*---------------------------------------------------------------------------*/
168/*
169 * VIDEO BUFFERS
170 */
171/*---------------------------------------------------------------------------*/
172#define FIELD_BUFFER_SIZE (203 * PAGE_SIZE)
173#define FRAME_BUFFER_SIZE (405 * PAGE_SIZE)
174#define FIELD_BUFFER_MANY 4
175#define FRAME_BUFFER_MANY 6
176/*---------------------------------------------------------------------------*/
177/*
178 * AUDIO STREAMING PARAMETERS
179 */
180/*---------------------------------------------------------------------------*/
181#define AUDIO_ISOC_BUFFER_MANY 16
182#define AUDIO_ISOC_ORDER 3
183#define AUDIO_ISOC_BUFFER_SIZE (PAGE_SIZE << AUDIO_ISOC_ORDER)
184/*---------------------------------------------------------------------------*/
185/*
186 * AUDIO BUFFERS
187 */
188/*---------------------------------------------------------------------------*/
189#define AUDIO_FRAGMENT_MANY 32
190/*---------------------------------------------------------------------------*/
191/*
192 * IT IS ESSENTIAL THAT EVEN-NUMBERED STANDARDS ARE 25 FRAMES PER SECOND,
193 * ODD-NUMBERED STANDARDS ARE 30 FRAMES PER SECOND.
194 * THE NUMBERING OF STANDARDS MUST NOT BE CHANGED WITHOUT DUE CARE. NOT
195 * ONLY MUST THE PARAMETER
196 * STANDARD_MANY
197 * BE CHANGED TO CORRESPOND TO THE NEW NUMBER OF STANDARDS, BUT ALSO THE
198 * NUMBERING MUST REMAIN AN UNBROKEN ASCENDING SEQUENCE: DUMMY STANDARDS
199 * MAY NEED TO BE ADDED. APPROPRIATE CHANGES WILL ALWAYS BE REQUIRED IN
200 * ROUTINE fillin_formats() AND POSSIBLY ELSEWHERE. BEWARE.
201 */
202/*---------------------------------------------------------------------------*/
203#define PAL_BGHIN 0
204#define PAL_Nc 2
205#define SECAM 4
206#define NTSC_N 6
207#define NTSC_N_443 8
208#define NTSC_M 1
209#define NTSC_443 3
210#define NTSC_M_JP 5
211#define PAL_60 7
212#define PAL_M 9
213#define STANDARD_MANY 10
214/*---------------------------------------------------------------------------*/
215/*
216 * ENUMS
217 */
218/*---------------------------------------------------------------------------*/
219enum {
220AT_720x576,
221AT_704x576,
222AT_640x480,
223AT_720x480,
224AT_360x288,
225AT_320x240,
226AT_360x240,
227RESOLUTION_MANY
228};
229enum {
230FMT_UYVY,
231FMT_YUY2,
232FMT_RGB24,
233FMT_RGB32,
234FMT_BGR24,
235FMT_BGR32,
236PIXELFORMAT_MANY
237};
238enum {
239FIELD_NONE,
240FIELD_INTERLACED,
241FIELD_ALTERNATE,
242INTERLACE_MANY
243};
244#define SETTINGS_MANY (STANDARD_MANY * \
245 RESOLUTION_MANY * \
246 2 * \
247 PIXELFORMAT_MANY * \
248 INTERLACE_MANY)
249/*---------------------------------------------------------------------------*/
250/*
251 * STRUCTURE DEFINITIONS
252 */
253/*---------------------------------------------------------------------------*/
254struct data_buffer {
255struct list_head list_head;
256void *pgo;
257void *pto;
258__u16 kount;
259};
260/*---------------------------------------------------------------------------*/
261struct data_urb {
262struct list_head list_head;
263struct urb *purb;
264int isbuf;
265int length;
266};
267/*---------------------------------------------------------------------------*/
268struct easycap_standard {
269__u16 mask;
270struct v4l2_standard v4l2_standard;
271};
272struct easycap_format {
273__u16 mask;
274char name[128];
275struct v4l2_format v4l2_format;
276};
277/*---------------------------------------------------------------------------*/
278/*
279 * easycap.ilk == 0 => CVBS+S-VIDEO HARDWARE, AUDIO wMaxPacketSize=256
280 * easycap.ilk == 2 => CVBS+S-VIDEO HARDWARE, AUDIO wMaxPacketSize=9
281 * easycap.ilk == 3 => FOUR-CVBS HARDWARE, AUDIO wMaxPacketSize=9
282 */
283/*---------------------------------------------------------------------------*/
284struct easycap {
285unsigned int audio_pages_per_fragment;
286unsigned int audio_bytes_per_fragment;
287unsigned int audio_buffer_page_many;
288
289#define UPSAMPLE
290#if defined(UPSAMPLE)
291__s16 oldaudio;
292#endif /*UPSAMPLE*/
293
294struct easycap_format easycap_format[1 + SETTINGS_MANY];
295
296int ilk;
297bool microphone;
298
299/*vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv*/
300#if defined(EASYCAP_IS_VIDEODEV_CLIENT)
301struct video_device *pvideo_device;
302#endif /*EASYCAP_IS_VIDEODEV_CLIENT*/
303/*^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^*/
304
305struct usb_device *pusb_device;
306struct usb_interface *pusb_interface;
307
308struct kref kref;
309
310struct mutex mutex_mmap_video[FRAME_BUFFER_MANY];
311struct mutex mutex_timeval0;
312struct mutex mutex_timeval1;
313
314int queued[FRAME_BUFFER_MANY];
315int done[FRAME_BUFFER_MANY];
316
317wait_queue_head_t wq_video;
318wait_queue_head_t wq_audio;
319
320int input;
321int polled;
322int standard_offset;
323int format_offset;
324
325int fps;
326int usec;
327int tolerate;
328int merit[180];
329
330struct timeval timeval0;
331struct timeval timeval1;
332struct timeval timeval2;
333struct timeval timeval7;
334long long int dnbydt;
335
336int video_interface;
337int video_altsetting_on;
338int video_altsetting_off;
339int video_endpointnumber;
340int video_isoc_maxframesize;
341int video_isoc_buffer_size;
342int video_isoc_framesperdesc;
343
344int video_isoc_streaming;
345int video_isoc_sequence;
346int video_idle;
347int video_eof;
348int video_junk;
349
350int fudge;
351
352struct data_buffer video_isoc_buffer[VIDEO_ISOC_BUFFER_MANY];
353struct data_buffer \
354 field_buffer[FIELD_BUFFER_MANY][(FIELD_BUFFER_SIZE/PAGE_SIZE)];
355struct data_buffer \
356 frame_buffer[FRAME_BUFFER_MANY][(FRAME_BUFFER_SIZE/PAGE_SIZE)];
357
358struct list_head urb_video_head;
359struct list_head *purb_video_head;
360
361int vma_many;
362
363/*---------------------------------------------------------------------------*/
364/*
365 * BUFFER INDICATORS
366 */
367/*---------------------------------------------------------------------------*/
368int field_fill; /* Field buffer being filled by easycap_complete(). */
369 /* Bumped only by easycap_complete(). */
370int field_page; /* Page of field buffer page being filled by */
371 /* easycap_complete(). */
372int field_read; /* Field buffer to be read by field2frame(). */
373 /* Bumped only by easycap_complete(). */
374int frame_fill; /* Frame buffer being filled by field2frame(). */
375 /* Bumped only by easycap_dqbuf() when */
376 /* field2frame() has created a complete frame. */
377int frame_read; /* Frame buffer offered to user by DQBUF. */
378 /* Set only by easycap_dqbuf() to trail frame_fill.*/
379int frame_lock; /* Flag set to 1 by DQBUF and cleared by QBUF */
380/*---------------------------------------------------------------------------*/
381/*
382 * IMAGE PROPERTIES
383 */
384/*---------------------------------------------------------------------------*/
385__u32 pixelformat;
386__u32 field;
387int width;
388int height;
389int bytesperpixel;
390bool byteswaporder;
391bool decimatepixel;
392bool offerfields;
393int frame_buffer_used;
394int frame_buffer_many;
395int videofieldamount;
396
397int brightness;
398int contrast;
399int saturation;
400int hue;
401
402int allocation_video_urb;
403int allocation_video_page;
404int allocation_video_struct;
405int registered_video;
406/*---------------------------------------------------------------------------*/
407/*
408 * SOUND PROPERTIES
409 */
410/*---------------------------------------------------------------------------*/
411int audio_interface;
412int audio_altsetting_on;
413int audio_altsetting_off;
414int audio_endpointnumber;
415int audio_isoc_maxframesize;
416int audio_isoc_buffer_size;
417int audio_isoc_framesperdesc;
418
419int audio_isoc_streaming;
420int audio_idle;
421int audio_eof;
422int volume;
423int mute;
424
425struct data_buffer audio_isoc_buffer[AUDIO_ISOC_BUFFER_MANY];
426
427struct list_head urb_audio_head;
428struct list_head *purb_audio_head;
429/*---------------------------------------------------------------------------*/
430/*
431 * BUFFER INDICATORS
432 */
433/*---------------------------------------------------------------------------*/
434int audio_fill; /* Audio buffer being filled by easysnd_complete(). */
435 /* Bumped only by easysnd_complete(). */
436int audio_read; /* Audio buffer page being read by easysnd_read(). */
437 /* Set by easysnd_read() to trail audio_fill by */
438 /* one fragment. */
439/*---------------------------------------------------------------------------*/
440/*
441 * SOUND PROPERTIES
442 */
443/*---------------------------------------------------------------------------*/
444
445int audio_buffer_many;
446
447int allocation_audio_urb;
448int allocation_audio_page;
449int allocation_audio_struct;
450int registered_audio;
451
452long long int audio_sample;
453long long int audio_niveau;
454long long int audio_square;
455
456struct data_buffer audio_buffer[];
457};
458/*---------------------------------------------------------------------------*/
459/*
460 * VIDEO FUNCTION PROTOTYPES
461 */
462/*---------------------------------------------------------------------------*/
463void easycap_complete(struct urb *);
464int easycap_open(struct inode *, struct file *);
465int easycap_release(struct inode *, struct file *);
466long easycap_ioctl(struct file *, unsigned int, unsigned long);
467
468/*vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv*/
469#if defined(EASYCAP_IS_VIDEODEV_CLIENT)
470int easycap_open_noinode(struct file *);
471int easycap_release_noinode(struct file *);
472int videodev_release(struct video_device *);
473#endif /*EASYCAP_IS_VIDEODEV_CLIENT*/
474/*^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^*/
475
476unsigned int easycap_poll(struct file *, poll_table *);
477int easycap_mmap(struct file *, struct vm_area_struct *);
478int easycap_usb_probe(struct usb_interface *, \
479 const struct usb_device_id *);
480void easycap_usb_disconnect(struct usb_interface *);
481void easycap_delete(struct kref *);
482
483void easycap_vma_open(struct vm_area_struct *);
484void easycap_vma_close(struct vm_area_struct *);
485int easycap_vma_fault(struct vm_area_struct *, struct vm_fault *);
486int easycap_dqbuf(struct easycap *, int);
487int submit_video_urbs(struct easycap *);
488int kill_video_urbs(struct easycap *);
489int field2frame(struct easycap *);
490int redaub(struct easycap *, void *, void *, \
491 int, int, __u8, __u8, bool);
492void debrief(struct easycap *);
493void sayreadonly(struct easycap *);
494void easycap_testcard(struct easycap *, int);
495int explain_ioctl(__u32);
496int explain_cid(__u32);
497int fillin_formats(void);
498int adjust_standard(struct easycap *, v4l2_std_id);
499int adjust_format(struct easycap *, __u32, __u32, __u32, \
500 int, bool);
501int adjust_brightness(struct easycap *, int);
502int adjust_contrast(struct easycap *, int);
503int adjust_saturation(struct easycap *, int);
504int adjust_hue(struct easycap *, int);
505int adjust_volume(struct easycap *, int);
506/*---------------------------------------------------------------------------*/
507/*
508 * AUDIO FUNCTION PROTOTYPES
509 */
510/*---------------------------------------------------------------------------*/
511void easysnd_complete(struct urb *);
512ssize_t easysnd_read(struct file *, char __user *, size_t, loff_t *);
513int easysnd_open(struct inode *, struct file *);
514int easysnd_release(struct inode *, struct file *);
515long easysnd_ioctl(struct file *, unsigned int, unsigned long);
516unsigned int easysnd_poll(struct file *, poll_table *);
517void easysnd_delete(struct kref *);
518int submit_audio_urbs(struct easycap *);
519int kill_audio_urbs(struct easycap *);
520void easysnd_testtone(struct easycap *, int);
521int audio_setup(struct easycap *);
522/*---------------------------------------------------------------------------*/
523/*
524 * LOW-LEVEL FUNCTION PROTOTYPES
525 */
526/*---------------------------------------------------------------------------*/
527int audio_gainget(struct usb_device *);
528int audio_gainset(struct usb_device *, __s8);
529
530int set_interface(struct usb_device *, __u16);
531int wakeup_device(struct usb_device *);
532int confirm_resolution(struct usb_device *);
533int confirm_stream(struct usb_device *);
534
535int setup_stk(struct usb_device *);
536int setup_saa(struct usb_device *);
537int setup_vt(struct usb_device *);
538int check_stk(struct usb_device *);
539int check_saa(struct usb_device *);
540int ready_saa(struct usb_device *);
541int merit_saa(struct usb_device *);
542int check_vt(struct usb_device *);
543int select_input(struct usb_device *, int, int);
544int set_resolution(struct usb_device *, \
545 __u16, __u16, __u16, __u16);
546
547int read_saa(struct usb_device *, __u16);
548int read_stk(struct usb_device *, __u32);
549int write_saa(struct usb_device *, __u16, __u16);
550int wait_i2c(struct usb_device *);
551int write_000(struct usb_device *, __u16, __u16);
552int start_100(struct usb_device *);
553int stop_100(struct usb_device *);
554int write_300(struct usb_device *);
555int read_vt(struct usb_device *, __u16);
556int write_vt(struct usb_device *, __u16, __u16);
557
558int set2to78(struct usb_device *);
559int set2to93(struct usb_device *);
560
561int regset(struct usb_device *, __u16, __u16);
562int regget(struct usb_device *, __u16, void *);
563/*---------------------------------------------------------------------------*/
564struct signed_div_result {
565long long int quotient;
566unsigned long long int remainder;
567} signed_div(long long int, long long int);
568/*---------------------------------------------------------------------------*/
569/*
570 * MACROS
571 */
572/*---------------------------------------------------------------------------*/
573#define GET(X, Y, Z) do { \
574 int rc; \
575 *(Z) = (__u16)0; \
576 rc = regget(X, Y, Z); \
577 if (0 > rc) { \
578 JOT(8, ":-(%i\n", __LINE__); return(rc); \
579 } \
580} while (0)
581
582#define SET(X, Y, Z) do { \
583 int rc; \
584 rc = regset(X, Y, Z); \
585 if (0 > rc) { \
586 JOT(8, ":-(%i\n", __LINE__); return(rc); \
587 } \
588} while (0)
589/*---------------------------------------------------------------------------*/
590
591#define SAY(format, args...) do { \
592 printk(KERN_DEBUG "easycap: %s: " format, __func__, ##args); \
593} while (0)
594
595
596#if defined(EASYCAP_DEBUG)
597#define JOT(n, format, args...) do { \
598 if (n <= easycap_debug) { \
599 printk(KERN_DEBUG "easycap: %s: " format, __func__, ##args); \
600 } \
601} while (0)
602#else
603#define JOT(n, format, args...) do {} while (0)
604#endif /*EASYCAP_DEBUG*/
605
606#define POUT JOT(8, ":-(in file %s line %4i\n", __FILE__, __LINE__)
607
608#define MICROSECONDS(X, Y) \
609 ((1000000*((long long int)(X.tv_sec - Y.tv_sec))) + \
610 (long long int)(X.tv_usec - Y.tv_usec))
611
612/*---------------------------------------------------------------------------*/
613/*
614 * (unsigned char *)P pointer to next byte pair
615 * (long int *)X pointer to accumulating count
616 * (long int *)Y pointer to accumulating sum
617 * (long long int *)Z pointer to accumulating sum of squares
618 */
619/*---------------------------------------------------------------------------*/
620#define SUMMER(P, X, Y, Z) do { \
621 unsigned char *p; \
622 unsigned int u0, u1, u2; \
623 long int s; \
624 p = (unsigned char *)(P); \
625 u0 = (unsigned int) (*p); \
626 u1 = (unsigned int) (*(p + 1)); \
627 u2 = (unsigned int) ((u1 << 8) | u0); \
628 if (0x8000 & u2) \
629 s = -(long int)(0x7FFF & (~u2)); \
630 else \
631 s = (long int)(0x7FFF & u2); \
632 *((X)) += (long int) 1; \
633 *((Y)) += (long int) s; \
634 *((Z)) += ((long long int)(s) * (long long int)(s)); \
635} while (0)
636/*---------------------------------------------------------------------------*/
637
638#endif /*EASYCAP_H*/