2 * Syntek DV4000 (STK014) subdriver
4 * Copyright (C) 2008 Jean-Francois Moine (http://moinejf.free.fr)
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 #define MODULE_NAME "stk014"
26 MODULE_AUTHOR("Jean-Francois Moine <http://moinejf.free.fr>");
27 MODULE_DESCRIPTION("Syntek DV4000 (STK014) USB Camera Driver");
28 MODULE_LICENSE("GPL");
30 /* specific webcam descriptor */
32 struct gspca_dev gspca_dev
; /* !! must be the first item */
34 unsigned char brightness
;
35 unsigned char contrast
;
37 unsigned char lightfreq
;
40 /* global parameters */
41 static int sd_quant
= 7; /* <= 4 KO - 7: good (enough!) */
43 /* V4L2 controls supported by the driver */
44 static int sd_setbrightness(struct gspca_dev
*gspca_dev
, __s32 val
);
45 static int sd_getbrightness(struct gspca_dev
*gspca_dev
, __s32
*val
);
46 static int sd_setcontrast(struct gspca_dev
*gspca_dev
, __s32 val
);
47 static int sd_getcontrast(struct gspca_dev
*gspca_dev
, __s32
*val
);
48 static int sd_setcolors(struct gspca_dev
*gspca_dev
, __s32 val
);
49 static int sd_getcolors(struct gspca_dev
*gspca_dev
, __s32
*val
);
50 static int sd_setfreq(struct gspca_dev
*gspca_dev
, __s32 val
);
51 static int sd_getfreq(struct gspca_dev
*gspca_dev
, __s32
*val
);
53 static struct ctrl sd_ctrls
[] = {
56 .id
= V4L2_CID_BRIGHTNESS
,
57 .type
= V4L2_CTRL_TYPE_INTEGER
,
62 #define BRIGHTNESS_DEF 127
63 .default_value
= BRIGHTNESS_DEF
,
65 .set
= sd_setbrightness
,
66 .get
= sd_getbrightness
,
70 .id
= V4L2_CID_CONTRAST
,
71 .type
= V4L2_CTRL_TYPE_INTEGER
,
76 #define CONTRAST_DEF 127
77 .default_value
= CONTRAST_DEF
,
79 .set
= sd_setcontrast
,
80 .get
= sd_getcontrast
,
84 .id
= V4L2_CID_SATURATION
,
85 .type
= V4L2_CTRL_TYPE_INTEGER
,
91 .default_value
= COLOR_DEF
,
98 .id
= V4L2_CID_POWER_LINE_FREQUENCY
,
99 .type
= V4L2_CTRL_TYPE_MENU
,
100 .name
= "Light frequency filter",
102 .maximum
= 2, /* 0: 0, 1: 50Hz, 2:60Hz */
105 .default_value
= FREQ_DEF
,
112 static const struct v4l2_pix_format vga_mode
[] = {
113 {320, 240, V4L2_PIX_FMT_JPEG
, V4L2_FIELD_NONE
,
115 .sizeimage
= 320 * 240 * 3 / 8 + 590,
116 .colorspace
= V4L2_COLORSPACE_JPEG
,
118 {640, 480, V4L2_PIX_FMT_JPEG
, V4L2_FIELD_NONE
,
120 .sizeimage
= 640 * 480 * 3 / 8 + 590,
121 .colorspace
= V4L2_COLORSPACE_JPEG
,
125 /* -- read a register -- */
126 static int reg_r(struct gspca_dev
*gspca_dev
,
129 struct usb_device
*dev
= gspca_dev
->dev
;
132 ret
= usb_control_msg(dev
, usb_rcvctrlpipe(dev
, 0),
134 USB_DIR_IN
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
137 gspca_dev
->usb_buf
, 1,
140 PDEBUG(D_ERR
, "reg_r err %d", ret
);
143 return gspca_dev
->usb_buf
[0];
146 /* -- write a register -- */
147 static int reg_w(struct gspca_dev
*gspca_dev
,
148 __u16 index
, __u16 value
)
150 struct usb_device
*dev
= gspca_dev
->dev
;
153 ret
= usb_control_msg(dev
, usb_sndctrlpipe(dev
, 0),
155 USB_DIR_OUT
| USB_TYPE_VENDOR
| USB_RECIP_DEVICE
,
162 PDEBUG(D_ERR
, "reg_w err %d", ret
);
166 /* -- get a bulk value (4 bytes) -- */
167 static int rcv_val(struct gspca_dev
*gspca_dev
,
170 struct usb_device
*dev
= gspca_dev
->dev
;
173 reg_w(gspca_dev
, 0x634, (ads
>> 16) & 0xff);
174 reg_w(gspca_dev
, 0x635, (ads
>> 8) & 0xff);
175 reg_w(gspca_dev
, 0x636, ads
& 0xff);
176 reg_w(gspca_dev
, 0x637, 0);
177 reg_w(gspca_dev
, 0x638, 4); /* len & 0xff */
178 reg_w(gspca_dev
, 0x639, 0); /* len >> 8 */
179 reg_w(gspca_dev
, 0x63a, 0);
180 reg_w(gspca_dev
, 0x63b, 0);
181 reg_w(gspca_dev
, 0x630, 5);
182 ret
= usb_bulk_msg(dev
,
183 usb_rcvbulkpipe(dev
, 5),
187 500); /* timeout in milliseconds */
191 /* -- send a bulk value -- */
192 static int snd_val(struct gspca_dev
*gspca_dev
,
196 struct usb_device
*dev
= gspca_dev
->dev
;
200 if (ads
== 0x003f08) {
201 ret
= reg_r(gspca_dev
, 0x0704);
204 ret
= reg_r(gspca_dev
, 0x0705);
207 seq
= ret
; /* keep the sequence number */
208 ret
= reg_r(gspca_dev
, 0x0650);
211 reg_w(gspca_dev
, 0x654, seq
);
213 reg_w(gspca_dev
, 0x654, (ads
>> 16) & 0xff);
215 reg_w(gspca_dev
, 0x655, (ads
>> 8) & 0xff);
216 reg_w(gspca_dev
, 0x656, ads
& 0xff);
217 reg_w(gspca_dev
, 0x657, 0);
218 reg_w(gspca_dev
, 0x658, 0x04); /* size */
219 reg_w(gspca_dev
, 0x659, 0);
220 reg_w(gspca_dev
, 0x65a, 0);
221 reg_w(gspca_dev
, 0x65b, 0);
222 reg_w(gspca_dev
, 0x650, 5);
223 gspca_dev
->usb_buf
[0] = val
>> 24;
224 gspca_dev
->usb_buf
[1] = val
>> 16;
225 gspca_dev
->usb_buf
[2] = val
>> 8;
226 gspca_dev
->usb_buf
[3] = val
;
227 ret
= usb_bulk_msg(dev
,
228 usb_sndbulkpipe(dev
, 6),
232 500); /* timeout in milliseconds */
235 if (ads
== 0x003f08) {
238 reg_w(gspca_dev
, 0x705, seq
);
242 PDEBUG(D_ERR
, "snd_val err %d", ret
);
246 /* set a camera parameter */
247 static int set_par(struct gspca_dev
*gspca_dev
,
250 return snd_val(gspca_dev
, 0x003f08, parval
);
253 static void setbrightness(struct gspca_dev
*gspca_dev
)
255 struct sd
*sd
= (struct sd
*) gspca_dev
;
258 parval
= 0x06000000 /* whiteness */
259 + (sd
->brightness
<< 16);
260 set_par(gspca_dev
, parval
);
263 static void setcontrast(struct gspca_dev
*gspca_dev
)
265 struct sd
*sd
= (struct sd
*) gspca_dev
;
268 parval
= 0x07000000 /* contrast */
269 + (sd
->contrast
<< 16);
270 set_par(gspca_dev
, parval
);
273 static void setcolors(struct gspca_dev
*gspca_dev
)
275 struct sd
*sd
= (struct sd
*) gspca_dev
;
278 parval
= 0x08000000 /* saturation */
279 + (sd
->colors
<< 16);
280 set_par(gspca_dev
, parval
);
283 static void setfreq(struct gspca_dev
*gspca_dev
)
285 struct sd
*sd
= (struct sd
*) gspca_dev
;
287 set_par(gspca_dev
, sd
->lightfreq
== 1
288 ? 0x33640000 /* 50 Hz */
289 : 0x33780000); /* 60 Hz */
292 /* this function is called at probe time */
293 static int sd_config(struct gspca_dev
*gspca_dev
,
294 const struct usb_device_id
*id
)
296 struct sd
*sd
= (struct sd
*) gspca_dev
;
297 struct cam
*cam
= &gspca_dev
->cam
;
300 gspca_dev
->cam
.cam_mode
= vga_mode
;
301 gspca_dev
->cam
.nmodes
= ARRAY_SIZE(vga_mode
);
302 sd
->brightness
= BRIGHTNESS_DEF
;
303 sd
->contrast
= CONTRAST_DEF
;
304 sd
->colors
= COLOR_DEF
;
305 sd
->lightfreq
= FREQ_DEF
;
309 /* this function is called at probe and resume time */
310 static int sd_init(struct gspca_dev
*gspca_dev
)
314 /* check if the device responds */
315 usb_set_interface(gspca_dev
->dev
, gspca_dev
->iface
, 1);
316 ret
= reg_r(gspca_dev
, 0x0740);
320 PDEBUG(D_ERR
|D_STREAM
, "init reg: 0x%02x", ret
);
326 /* -- start the camera -- */
327 static int sd_start(struct gspca_dev
*gspca_dev
)
331 /* work on alternate 1 */
332 usb_set_interface(gspca_dev
->dev
, gspca_dev
->iface
, 1);
334 set_par(gspca_dev
, 0x10000000);
335 set_par(gspca_dev
, 0x00000000);
336 set_par(gspca_dev
, 0x8002e001);
337 set_par(gspca_dev
, 0x14000000);
338 if (gspca_dev
->width
> 320)
339 value
= 0x8002e001; /* 640x480 */
341 value
= 0x4001f000; /* 320x240 */
342 set_par(gspca_dev
, value
);
343 ret
= usb_set_interface(gspca_dev
->dev
,
347 PDEBUG(D_ERR
|D_STREAM
, "set intf %d %d failed",
348 gspca_dev
->iface
, gspca_dev
->alt
);
351 ret
= reg_r(gspca_dev
, 0x0630);
354 rcv_val(gspca_dev
, 0x000020); /* << (value ff ff ff ff) */
355 ret
= reg_r(gspca_dev
, 0x0650);
358 snd_val(gspca_dev
, 0x000020, 0xffffffff);
359 reg_w(gspca_dev
, 0x0620, 0);
360 reg_w(gspca_dev
, 0x0630, 0);
361 reg_w(gspca_dev
, 0x0640, 0);
362 reg_w(gspca_dev
, 0x0650, 0);
363 reg_w(gspca_dev
, 0x0660, 0);
364 setbrightness(gspca_dev
); /* whiteness */
365 setcontrast(gspca_dev
); /* contrast */
366 setcolors(gspca_dev
); /* saturation */
367 set_par(gspca_dev
, 0x09800000); /* Red ? */
368 set_par(gspca_dev
, 0x0a800000); /* Green ? */
369 set_par(gspca_dev
, 0x0b800000); /* Blue ? */
370 set_par(gspca_dev
, 0x0d030000); /* Gamma ? */
371 setfreq(gspca_dev
); /* light frequency */
373 /* start the video flow */
374 set_par(gspca_dev
, 0x01000000);
375 set_par(gspca_dev
, 0x01000000);
376 PDEBUG(D_STREAM
, "camera started alt: 0x%02x", gspca_dev
->alt
);
379 PDEBUG(D_ERR
|D_STREAM
, "camera start err %d", ret
);
383 static void sd_stopN(struct gspca_dev
*gspca_dev
)
385 struct usb_device
*dev
= gspca_dev
->dev
;
387 set_par(gspca_dev
, 0x02000000);
388 set_par(gspca_dev
, 0x02000000);
389 usb_set_interface(dev
, gspca_dev
->iface
, 1);
390 reg_r(gspca_dev
, 0x0630);
391 rcv_val(gspca_dev
, 0x000020); /* << (value ff ff ff ff) */
392 reg_r(gspca_dev
, 0x0650);
393 snd_val(gspca_dev
, 0x000020, 0xffffffff);
394 reg_w(gspca_dev
, 0x0620, 0);
395 reg_w(gspca_dev
, 0x0630, 0);
396 reg_w(gspca_dev
, 0x0640, 0);
397 reg_w(gspca_dev
, 0x0650, 0);
398 reg_w(gspca_dev
, 0x0660, 0);
399 PDEBUG(D_STREAM
, "camera stopped");
402 static void sd_pkt_scan(struct gspca_dev
*gspca_dev
,
403 struct gspca_frame
*frame
, /* target */
404 __u8
*data
, /* isoc packet */
405 int len
) /* iso packet length */
407 static unsigned char ffd9
[] = {0xff, 0xd9};
409 /* a frame starts with:
411 * - 0x08 0x00 - length (little endian ?!)
412 * - 4 bytes = size of whole frame (BE - including header)
415 * - .. JPEG image with escape sequences (ff 00)
416 * (without ending - ff d9)
418 if (data
[0] == 0xff && data
[1] == 0xfe) {
419 frame
= gspca_frame_add(gspca_dev
, LAST_PACKET
, frame
,
422 /* put the JPEG 411 header */
423 jpeg_put_header(gspca_dev
, frame
, sd_quant
, 0x22);
425 /* beginning of the frame */
430 gspca_frame_add(gspca_dev
, INTER_PACKET
, frame
, data
, len
);
433 static int sd_setbrightness(struct gspca_dev
*gspca_dev
, __s32 val
)
435 struct sd
*sd
= (struct sd
*) gspca_dev
;
437 sd
->brightness
= val
;
438 if (gspca_dev
->streaming
)
439 setbrightness(gspca_dev
);
443 static int sd_getbrightness(struct gspca_dev
*gspca_dev
, __s32
*val
)
445 struct sd
*sd
= (struct sd
*) gspca_dev
;
447 *val
= sd
->brightness
;
451 static int sd_setcontrast(struct gspca_dev
*gspca_dev
, __s32 val
)
453 struct sd
*sd
= (struct sd
*) gspca_dev
;
456 if (gspca_dev
->streaming
)
457 setcontrast(gspca_dev
);
461 static int sd_getcontrast(struct gspca_dev
*gspca_dev
, __s32
*val
)
463 struct sd
*sd
= (struct sd
*) gspca_dev
;
469 static int sd_setcolors(struct gspca_dev
*gspca_dev
, __s32 val
)
471 struct sd
*sd
= (struct sd
*) gspca_dev
;
474 if (gspca_dev
->streaming
)
475 setcolors(gspca_dev
);
479 static int sd_getcolors(struct gspca_dev
*gspca_dev
, __s32
*val
)
481 struct sd
*sd
= (struct sd
*) gspca_dev
;
487 static int sd_setfreq(struct gspca_dev
*gspca_dev
, __s32 val
)
489 struct sd
*sd
= (struct sd
*) gspca_dev
;
492 if (gspca_dev
->streaming
)
497 static int sd_getfreq(struct gspca_dev
*gspca_dev
, __s32
*val
)
499 struct sd
*sd
= (struct sd
*) gspca_dev
;
501 *val
= sd
->lightfreq
;
505 static int sd_querymenu(struct gspca_dev
*gspca_dev
,
506 struct v4l2_querymenu
*menu
)
509 case V4L2_CID_POWER_LINE_FREQUENCY
:
510 switch (menu
->index
) {
511 case 1: /* V4L2_CID_POWER_LINE_FREQUENCY_50HZ */
512 strcpy((char *) menu
->name
, "50 Hz");
514 case 2: /* V4L2_CID_POWER_LINE_FREQUENCY_60HZ */
515 strcpy((char *) menu
->name
, "60 Hz");
523 /* sub-driver description */
524 static const struct sd_desc sd_desc
= {
527 .nctrls
= ARRAY_SIZE(sd_ctrls
),
532 .pkt_scan
= sd_pkt_scan
,
533 .querymenu
= sd_querymenu
,
536 /* -- module initialisation -- */
537 static const __devinitdata
struct usb_device_id device_table
[] = {
538 {USB_DEVICE(0x05e1, 0x0893)},
541 MODULE_DEVICE_TABLE(usb
, device_table
);
543 /* -- device connect -- */
544 static int sd_probe(struct usb_interface
*intf
,
545 const struct usb_device_id
*id
)
547 return gspca_dev_probe(intf
, id
, &sd_desc
, sizeof(struct sd
),
551 static struct usb_driver sd_driver
= {
553 .id_table
= device_table
,
555 .disconnect
= gspca_disconnect
,
557 .suspend
= gspca_suspend
,
558 .resume
= gspca_resume
,
562 /* -- module insert / remove -- */
563 static int __init
sd_mod_init(void)
565 if (usb_register(&sd_driver
) < 0)
570 static void __exit
sd_mod_exit(void)
572 usb_deregister(&sd_driver
);
573 info("deregistered");
576 module_init(sd_mod_init
);
577 module_exit(sd_mod_exit
);
579 module_param_named(quant
, sd_quant
, int, 0644);
580 MODULE_PARM_DESC(quant
, "Quantization index (0..8)");