2 * OmniVision OV511 Camera-to-USB Bridge Driver
4 * Copyright (c) 1999-2003 Mark W. McClelland
5 * Original decompression code Copyright 1998-2000 OmniVision Technologies
6 * Many improvements by Bret Wallach <bwallac1@san.rr.com>
7 * Color fixes by by Orion Sky Lawlor <olawlor@acm.org> (2/26/2000)
8 * Snapshot code by Kevin Moore
9 * OV7620 fixes by Charl P. Botha <cpbotha@ieee.org>
10 * Changes by Claudio Matsuoka <claudio@conectiva.com>
11 * Original SAA7111A code by Dave Perks <dperks@ibm.net>
12 * URB error messages from pwc driver by Nemosoft
13 * generic_ioctl() code from videodev.c by Gerd Knorr and Alan Cox
14 * Memory management (rvmalloc) code from bttv driver, by Gerd Knorr and others
16 * Based on the Linux CPiA driver written by Peter Pregler,
17 * Scott J. Bertin and Johannes Erdfelt.
19 * Please see the file: Documentation/usb/ov511.txt
20 * and the website at: http://alpha.dyndns.org/ov511
23 * This program is free software; you can redistribute it and/or modify it
24 * under the terms of the GNU General Public License as published by the
25 * Free Software Foundation; either version 2 of the License, or (at your
26 * option) any later version.
28 * This program is distributed in the hope that it will be useful, but
29 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
30 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
33 * You should have received a copy of the GNU General Public License
34 * along with this program; if not, write to the Free Software Foundation,
35 * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
38 #include <linux/config.h>
39 #include <linux/module.h>
40 #include <linux/init.h>
41 #include <linux/vmalloc.h>
42 #include <linux/slab.h>
43 #include <linux/ctype.h>
44 #include <linux/pagemap.h>
45 #include <asm/semaphore.h>
46 #include <asm/processor.h>
48 #include <linux/device.h>
50 #if defined (__i386__)
51 #include <asm/cpufeature.h>
59 #define DRIVER_VERSION "v1.64 for Linux 2.5"
60 #define EMAIL "mark@alpha.dyndns.org"
61 #define DRIVER_AUTHOR "Mark McClelland <mark@alpha.dyndns.org> & Bret Wallach \
62 & Orion Sky Lawlor <olawlor@acm.org> & Kevin Moore & Charl P. Botha \
63 <cpbotha@ieee.org> & Claudio Matsuoka <claudio@conectiva.com>"
64 #define DRIVER_DESC "ov511 USB Camera Driver"
66 #define OV511_I2C_RETRIES 3
67 #define ENABLE_Y_QUANTABLE 1
68 #define ENABLE_UV_QUANTABLE 1
70 #define OV511_MAX_UNIT_VIDEO 16
72 /* Pixel count * bytes per YUV420 pixel (1.5) */
73 #define MAX_FRAME_SIZE(w, h) ((w) * (h) * 3 / 2)
75 #define MAX_DATA_SIZE(w, h) (MAX_FRAME_SIZE(w, h) + sizeof(struct timeval))
77 /* Max size * bytes per YUV420 pixel (1.5) + one extra isoc frame for safety */
78 #define MAX_RAW_DATA_SIZE(w, h) ((w) * (h) * 3 / 2 + 1024)
80 #define FATAL_ERROR(rc) ((rc) < 0 && (rc) != -EPERM)
82 /**********************************************************************
84 * (See ov511.txt for detailed descriptions of these)
85 **********************************************************************/
87 /* These variables (and all static globals) default to zero */
88 static int autobright = 1;
89 static int autogain = 1;
90 static int autoexp = 1;
98 static int dump_bridge;
99 static int dump_sensor;
101 static int phy = 0x1f;
102 static int phuv = 0x05;
103 static int pvy = 0x06;
104 static int pvuv = 0x06;
105 static int qhy = 0x14;
106 static int qhuv = 0x03;
107 static int qvy = 0x04;
108 static int qvuv = 0x04;
109 static int lightfreq;
110 static int bandingfilter;
111 static int clockdiv = -1;
112 static int packetsize = -1;
113 static int framedrop = -1;
115 static int force_palette;
116 static int backlight;
117 static int unit_video[OV511_MAX_UNIT_VIDEO];
118 static int remove_zeros;
120 static int ov518_color;
122 module_param(autobright, int, 0);
123 MODULE_PARM_DESC(autobright, "Sensor automatically changes brightness");
124 module_param(autogain, int, 0);
125 MODULE_PARM_DESC(autogain, "Sensor automatically changes gain");
126 module_param(autoexp, int, 0);
127 MODULE_PARM_DESC(autoexp, "Sensor automatically changes exposure");
128 module_param(debug, int, 0);
129 MODULE_PARM_DESC(debug,
130 "Debug level: 0=none, 1=inits, 2=warning, 3=config, 4=functions, 5=max");
131 module_param(snapshot, int, 0);
132 MODULE_PARM_DESC(snapshot, "Enable snapshot mode");
133 module_param(cams, int, 0);
134 MODULE_PARM_DESC(cams, "Number of simultaneous cameras");
135 module_param(compress, int, 0);
136 MODULE_PARM_DESC(compress, "Turn on compression");
137 module_param(testpat, int, 0);
138 MODULE_PARM_DESC(testpat,
139 "Replace image with vertical bar testpattern (only partially working)");
140 module_param(dumppix, int, 0);
141 MODULE_PARM_DESC(dumppix, "Dump raw pixel data");
142 module_param(led, int, 0);
143 MODULE_PARM_DESC(led,
144 "LED policy (OV511+ or later). 0=off, 1=on (default), 2=auto (on when open)");
145 module_param(dump_bridge, int, 0);
146 MODULE_PARM_DESC(dump_bridge, "Dump the bridge registers");
147 module_param(dump_sensor, int, 0);
148 MODULE_PARM_DESC(dump_sensor, "Dump the sensor registers");
149 module_param(printph, int, 0);
150 MODULE_PARM_DESC(printph, "Print frame start/end headers");
151 module_param(phy, int, 0);
152 MODULE_PARM_DESC(phy, "Prediction range (horiz. Y)");
153 module_param(phuv, int, 0);
154 MODULE_PARM_DESC(phuv, "Prediction range (horiz. UV)");
155 module_param(pvy, int, 0);
156 MODULE_PARM_DESC(pvy, "Prediction range (vert. Y)");
157 module_param(pvuv, int, 0);
158 MODULE_PARM_DESC(pvuv, "Prediction range (vert. UV)");
159 module_param(qhy, int, 0);
160 MODULE_PARM_DESC(qhy, "Quantization threshold (horiz. Y)");
161 module_param(qhuv, int, 0);
162 MODULE_PARM_DESC(qhuv, "Quantization threshold (horiz. UV)");
163 module_param(qvy, int, 0);
164 MODULE_PARM_DESC(qvy, "Quantization threshold (vert. Y)");
165 module_param(qvuv, int, 0);
166 MODULE_PARM_DESC(qvuv, "Quantization threshold (vert. UV)");
167 module_param(lightfreq, int, 0);
168 MODULE_PARM_DESC(lightfreq,
169 "Light frequency. Set to 50 or 60 Hz, or zero for default settings");
170 module_param(bandingfilter, int, 0);
171 MODULE_PARM_DESC(bandingfilter,
172 "Enable banding filter (to reduce effects of fluorescent lighting)");
173 module_param(clockdiv, int, 0);
174 MODULE_PARM_DESC(clockdiv, "Force pixel clock divisor to a specific value");
175 module_param(packetsize, int, 0);
176 MODULE_PARM_DESC(packetsize, "Force a specific isoc packet size");
177 module_param(framedrop, int, 0);
178 MODULE_PARM_DESC(framedrop, "Force a specific frame drop register setting");
179 module_param(fastset, int, 0);
180 MODULE_PARM_DESC(fastset, "Allows picture settings to take effect immediately");
181 module_param(force_palette, int, 0);
182 MODULE_PARM_DESC(force_palette, "Force the palette to a specific value");
183 module_param(backlight, int, 0);
184 MODULE_PARM_DESC(backlight, "For objects that are lit from behind");
186 module_param_array(unit_video, int, &num_uv, 0);
187 MODULE_PARM_DESC(unit_video,
188 "Force use of specific minor number(s). 0 is not allowed.");
189 module_param(remove_zeros, int, 0);
190 MODULE_PARM_DESC(remove_zeros,
191 "Remove zero-padding from uncompressed incoming data");
192 module_param(mirror, int, 0);
193 MODULE_PARM_DESC(mirror, "Reverse image horizontally");
194 module_param(ov518_color, int, 0);
195 MODULE_PARM_DESC(ov518_color, "Enable OV518 color (experimental)");
197 MODULE_AUTHOR(DRIVER_AUTHOR);
198 MODULE_DESCRIPTION(DRIVER_DESC);
199 MODULE_LICENSE("GPL");
201 /**********************************************************************
202 * Miscellaneous Globals
203 **********************************************************************/
205 static struct usb_driver ov511_driver;
207 static struct ov51x_decomp_ops *ov511_decomp_ops;
208 static struct ov51x_decomp_ops *ov511_mmx_decomp_ops;
209 static struct ov51x_decomp_ops *ov518_decomp_ops;
210 static struct ov51x_decomp_ops *ov518_mmx_decomp_ops;
212 /* Number of times to retry a failed I2C transaction. Increase this if you
213 * are getting "Failed to read sensor ID..." */
214 static int i2c_detect_tries = 5;
216 /* MMX support is present in kernel and CPU. Checked upon decomp module load. */
217 #if defined(__i386__) || defined(__x86_64__)
218 #define ov51x_mmx_available (cpu_has_mmx)
220 #define ov51x_mmx_available (0)
223 static struct usb_device_id device_table [] = {
224 { USB_DEVICE(VEND_OMNIVISION, PROD_OV511) },
225 { USB_DEVICE(VEND_OMNIVISION, PROD_OV511PLUS) },
226 { USB_DEVICE(VEND_OMNIVISION, PROD_OV518) },
227 { USB_DEVICE(VEND_OMNIVISION, PROD_OV518PLUS) },
228 { USB_DEVICE(VEND_MATTEL, PROD_ME2CAM) },
229 { } /* Terminating entry */
232 MODULE_DEVICE_TABLE (usb, device_table);
234 static unsigned char yQuanTable511[] = OV511_YQUANTABLE;
235 static unsigned char uvQuanTable511[] = OV511_UVQUANTABLE;
236 static unsigned char yQuanTable518[] = OV518_YQUANTABLE;
237 static unsigned char uvQuanTable518[] = OV518_UVQUANTABLE;
239 /**********************************************************************
241 **********************************************************************/
243 /* Known OV511-based cameras */
244 static struct symbolic_list camlist[] = {
245 { 0, "Generic Camera (no ID)" },
246 { 1, "Mustek WCam 3X" },
247 { 3, "D-Link DSB-C300" },
248 { 4, "Generic OV511/OV7610" },
249 { 5, "Puretek PT-6007" },
250 { 6, "Lifeview USB Life TV (NTSC)" },
251 { 21, "Creative Labs WebCam 3" },
252 { 22, "Lifeview USB Life TV (PAL D/K+B/G)" },
254 { 38, "Lifeview USB Life TV (PAL)" },
255 { 41, "Samsung Anycam MPC-M10" },
256 { 43, "Mtekvision Zeca MV402" },
258 { 70, "Lifeview USB Life TV (PAL/SECAM)" },
259 { 100, "Lifeview RoboCam" },
260 { 102, "AverMedia InterCam Elite" },
261 { 112, "MediaForte MV300" }, /* or OV7110 evaluation kit */
262 { 134, "Ezonics EZCam II" },
263 { 192, "Webeye 2000B" },
264 { 253, "Alpha Vision Tech. AlphaCam SE" },
268 /* Video4Linux1 Palettes */
269 static struct symbolic_list v4l1_plist[] = {
270 { VIDEO_PALETTE_GREY, "GREY" },
271 { VIDEO_PALETTE_HI240, "HI240" },
272 { VIDEO_PALETTE_RGB565, "RGB565" },
273 { VIDEO_PALETTE_RGB24, "RGB24" },
274 { VIDEO_PALETTE_RGB32, "RGB32" },
275 { VIDEO_PALETTE_RGB555, "RGB555" },
276 { VIDEO_PALETTE_YUV422, "YUV422" },
277 { VIDEO_PALETTE_YUYV, "YUYV" },
278 { VIDEO_PALETTE_UYVY, "UYVY" },
279 { VIDEO_PALETTE_YUV420, "YUV420" },
280 { VIDEO_PALETTE_YUV411, "YUV411" },
281 { VIDEO_PALETTE_RAW, "RAW" },
282 { VIDEO_PALETTE_YUV422P,"YUV422P" },
283 { VIDEO_PALETTE_YUV411P,"YUV411P" },
284 { VIDEO_PALETTE_YUV420P,"YUV420P" },
285 { VIDEO_PALETTE_YUV410P,"YUV410P" },
289 static struct symbolic_list brglist[] = {
290 { BRG_OV511, "OV511" },
291 { BRG_OV511PLUS, "OV511+" },
292 { BRG_OV518, "OV518" },
293 { BRG_OV518PLUS, "OV518+" },
297 static struct symbolic_list senlist[] = {
298 { SEN_OV76BE, "OV76BE" },
299 { SEN_OV7610, "OV7610" },
300 { SEN_OV7620, "OV7620" },
301 { SEN_OV7620AE, "OV7620AE" },
302 { SEN_OV6620, "OV6620" },
303 { SEN_OV6630, "OV6630" },
304 { SEN_OV6630AE, "OV6630AE" },
305 { SEN_OV6630AF, "OV6630AF" },
306 { SEN_OV8600, "OV8600" },
307 { SEN_KS0127, "KS0127" },
308 { SEN_KS0127B, "KS0127B" },
309 { SEN_SAA7111A, "SAA7111A" },
313 /* URB error codes: */
314 static struct symbolic_list urb_errlist[] = {
315 { -ENOSR, "Buffer error (overrun)" },
316 { -EPIPE, "Stalled (device not responding)" },
317 { -EOVERFLOW, "Babble (bad cable?)" },
318 { -EPROTO, "Bit-stuff error (bad cable?)" },
319 { -EILSEQ, "CRC/Timeout" },
320 { -ETIMEDOUT, "NAK (device does not respond)" },
324 /**********************************************************************
326 **********************************************************************/
328 rvmalloc(unsigned long size)
333 size = PAGE_ALIGN(size);
334 mem = vmalloc_32(size);
338 memset(mem, 0, size); /* Clear the ram out, no junk to the user */
339 adr = (unsigned long) mem;
341 SetPageReserved(vmalloc_to_page((void *)adr));
350 rvfree(void *mem, unsigned long size)
357 adr = (unsigned long) mem;
358 while ((long) size > 0) {
359 ClearPageReserved(vmalloc_to_page((void *)adr));
366 /**********************************************************************
370 **********************************************************************/
372 /* Write an OV51x register */
374 reg_w(struct usb_ov511 *ov, unsigned char reg, unsigned char value)
378 PDEBUG(5, "0x%02X:0x%02X", reg, value);
380 down(&ov->cbuf_lock);
382 rc = usb_control_msg(ov->dev,
383 usb_sndctrlpipe(ov->dev, 0),
384 (ov->bclass == BCL_OV518)?1:2 /* REG_IO */,
385 USB_TYPE_VENDOR | USB_RECIP_DEVICE,
386 0, (__u16)reg, &ov->cbuf[0], 1, HZ);
390 err("reg write: error %d: %s", rc, symbolic(urb_errlist, rc));
395 /* Read from an OV51x register */
396 /* returns: negative is error, pos or zero is data */
398 reg_r(struct usb_ov511 *ov, unsigned char reg)
402 down(&ov->cbuf_lock);
403 rc = usb_control_msg(ov->dev,
404 usb_rcvctrlpipe(ov->dev, 0),
405 (ov->bclass == BCL_OV518)?1:3 /* REG_IO */,
406 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
407 0, (__u16)reg, &ov->cbuf[0], 1, HZ);
410 err("reg read: error %d: %s", rc, symbolic(urb_errlist, rc));
413 PDEBUG(5, "0x%02X:0x%02X", reg, ov->cbuf[0]);
422 * Writes bits at positions specified by mask to an OV51x reg. Bits that are in
423 * the same position as 1's in "mask" are cleared and set to "value". Bits
424 * that are in the same position as 0's in "mask" are preserved, regardless
425 * of their respective state in "value".
428 reg_w_mask(struct usb_ov511 *ov,
434 unsigned char oldval, newval;
436 ret = reg_r(ov, reg);
440 oldval = (unsigned char) ret;
441 oldval &= (~mask); /* Clear the masked bits */
442 value &= mask; /* Enforce mask on value */
443 newval = oldval | value; /* Set the desired bits */
445 return (reg_w(ov, reg, newval));
449 * Writes multiple (n) byte value to a single register. Only valid with certain
450 * registers (0x30 and 0xc4 - 0xce).
453 ov518_reg_w32(struct usb_ov511 *ov, unsigned char reg, u32 val, int n)
457 PDEBUG(5, "0x%02X:%7d, n=%d", reg, val, n);
459 down(&ov->cbuf_lock);
461 *((__le32 *)ov->cbuf) = __cpu_to_le32(val);
463 rc = usb_control_msg(ov->dev,
464 usb_sndctrlpipe(ov->dev, 0),
466 USB_TYPE_VENDOR | USB_RECIP_DEVICE,
467 0, (__u16)reg, ov->cbuf, n, HZ);
471 err("reg write multiple: error %d: %s", rc,
472 symbolic(urb_errlist, rc));
478 ov511_upload_quan_tables(struct usb_ov511 *ov)
480 unsigned char *pYTable = yQuanTable511;
481 unsigned char *pUVTable = uvQuanTable511;
482 unsigned char val0, val1;
483 int i, rc, reg = R511_COMP_LUT_BEGIN;
485 PDEBUG(4, "Uploading quantization tables");
487 for (i = 0; i < OV511_QUANTABLESIZE / 2; i++) {
488 if (ENABLE_Y_QUANTABLE) {
494 rc = reg_w(ov, reg, val0);
499 if (ENABLE_UV_QUANTABLE) {
505 rc = reg_w(ov, reg + OV511_QUANTABLESIZE/2, val0);
516 /* OV518 quantization tables are 8x4 (instead of 8x8) */
518 ov518_upload_quan_tables(struct usb_ov511 *ov)
520 unsigned char *pYTable = yQuanTable518;
521 unsigned char *pUVTable = uvQuanTable518;
522 unsigned char val0, val1;
523 int i, rc, reg = R511_COMP_LUT_BEGIN;
525 PDEBUG(4, "Uploading quantization tables");
527 for (i = 0; i < OV518_QUANTABLESIZE / 2; i++) {
528 if (ENABLE_Y_QUANTABLE) {
534 rc = reg_w(ov, reg, val0);
539 if (ENABLE_UV_QUANTABLE) {
545 rc = reg_w(ov, reg + OV518_QUANTABLESIZE/2, val0);
557 ov51x_reset(struct usb_ov511 *ov, unsigned char reset_type)
561 /* Setting bit 0 not allowed on 518/518Plus */
562 if (ov->bclass == BCL_OV518)
565 PDEBUG(4, "Reset: type=0x%02X", reset_type);
567 rc = reg_w(ov, R51x_SYS_RESET, reset_type);
568 rc = reg_w(ov, R51x_SYS_RESET, 0);
571 err("reset: command failed");
576 /**********************************************************************
578 * Low-level I2C I/O functions
580 **********************************************************************/
582 /* NOTE: Do not call this function directly!
583 * The OV518 I2C I/O procedure is different, hence, this function.
584 * This is normally only called from i2c_w(). Note that this function
585 * always succeeds regardless of whether the sensor is present and working.
588 ov518_i2c_write_internal(struct usb_ov511 *ov,
594 PDEBUG(5, "0x%02X:0x%02X", reg, value);
596 /* Select camera register */
597 rc = reg_w(ov, R51x_I2C_SADDR_3, reg);
601 /* Write "value" to I2C data port of OV511 */
602 rc = reg_w(ov, R51x_I2C_DATA, value);
606 /* Initiate 3-byte write cycle */
607 rc = reg_w(ov, R518_I2C_CTL, 0x01);
614 /* NOTE: Do not call this function directly! */
616 ov511_i2c_write_internal(struct usb_ov511 *ov,
622 PDEBUG(5, "0x%02X:0x%02X", reg, value);
624 /* Three byte write cycle */
625 for (retries = OV511_I2C_RETRIES; ; ) {
626 /* Select camera register */
627 rc = reg_w(ov, R51x_I2C_SADDR_3, reg);
631 /* Write "value" to I2C data port of OV511 */
632 rc = reg_w(ov, R51x_I2C_DATA, value);
636 /* Initiate 3-byte write cycle */
637 rc = reg_w(ov, R511_I2C_CTL, 0x01);
641 /* Retry until idle */
643 rc = reg_r(ov, R511_I2C_CTL);
644 while (rc > 0 && ((rc&1) == 0));
655 reg_w(ov, R511_I2C_CTL, 0x10);
658 err("i2c write retries exhausted");
667 /* NOTE: Do not call this function directly!
668 * The OV518 I2C I/O procedure is different, hence, this function.
669 * This is normally only called from i2c_r(). Note that this function
670 * always succeeds regardless of whether the sensor is present and working.
673 ov518_i2c_read_internal(struct usb_ov511 *ov, unsigned char reg)
677 /* Select camera register */
678 rc = reg_w(ov, R51x_I2C_SADDR_2, reg);
682 /* Initiate 2-byte write cycle */
683 rc = reg_w(ov, R518_I2C_CTL, 0x03);
687 /* Initiate 2-byte read cycle */
688 rc = reg_w(ov, R518_I2C_CTL, 0x05);
692 value = reg_r(ov, R51x_I2C_DATA);
694 PDEBUG(5, "0x%02X:0x%02X", reg, value);
699 /* NOTE: Do not call this function directly!
700 * returns: negative is error, pos or zero is data */
702 ov511_i2c_read_internal(struct usb_ov511 *ov, unsigned char reg)
704 int rc, value, retries;
706 /* Two byte write cycle */
707 for (retries = OV511_I2C_RETRIES; ; ) {
708 /* Select camera register */
709 rc = reg_w(ov, R51x_I2C_SADDR_2, reg);
713 /* Initiate 2-byte write cycle */
714 rc = reg_w(ov, R511_I2C_CTL, 0x03);
718 /* Retry until idle */
720 rc = reg_r(ov, R511_I2C_CTL);
721 while (rc > 0 && ((rc&1) == 0));
725 if ((rc&2) == 0) /* Ack? */
729 reg_w(ov, R511_I2C_CTL, 0x10);
732 err("i2c write retries exhausted");
737 /* Two byte read cycle */
738 for (retries = OV511_I2C_RETRIES; ; ) {
739 /* Initiate 2-byte read cycle */
740 rc = reg_w(ov, R511_I2C_CTL, 0x05);
744 /* Retry until idle */
746 rc = reg_r(ov, R511_I2C_CTL);
747 while (rc > 0 && ((rc&1) == 0));
751 if ((rc&2) == 0) /* Ack? */
755 rc = reg_w(ov, R511_I2C_CTL, 0x10);
760 err("i2c read retries exhausted");
765 value = reg_r(ov, R51x_I2C_DATA);
767 PDEBUG(5, "0x%02X:0x%02X", reg, value);
769 /* This is needed to make i2c_w() work */
770 rc = reg_w(ov, R511_I2C_CTL, 0x05);
777 /* returns: negative is error, pos or zero is data */
779 i2c_r(struct usb_ov511 *ov, unsigned char reg)
785 if (ov->bclass == BCL_OV518)
786 rc = ov518_i2c_read_internal(ov, reg);
788 rc = ov511_i2c_read_internal(ov, reg);
796 i2c_w(struct usb_ov511 *ov, unsigned char reg, unsigned char value)
802 if (ov->bclass == BCL_OV518)
803 rc = ov518_i2c_write_internal(ov, reg, value);
805 rc = ov511_i2c_write_internal(ov, reg, value);
812 /* Do not call this function directly! */
814 ov51x_i2c_write_mask_internal(struct usb_ov511 *ov,
820 unsigned char oldval, newval;
825 if (ov->bclass == BCL_OV518)
826 rc = ov518_i2c_read_internal(ov, reg);
828 rc = ov511_i2c_read_internal(ov, reg);
832 oldval = (unsigned char) rc;
833 oldval &= (~mask); /* Clear the masked bits */
834 value &= mask; /* Enforce mask on value */
835 newval = oldval | value; /* Set the desired bits */
838 if (ov->bclass == BCL_OV518)
839 return (ov518_i2c_write_internal(ov, reg, newval));
841 return (ov511_i2c_write_internal(ov, reg, newval));
844 /* Writes bits at positions specified by mask to an I2C reg. Bits that are in
845 * the same position as 1's in "mask" are cleared and set to "value". Bits
846 * that are in the same position as 0's in "mask" are preserved, regardless
847 * of their respective state in "value".
850 i2c_w_mask(struct usb_ov511 *ov,
858 rc = ov51x_i2c_write_mask_internal(ov, reg, value, mask);
864 /* Set the read and write slave IDs. The "slave" argument is the write slave,
865 * and the read slave will be set to (slave + 1). ov->i2c_lock should be held
866 * when calling this. This should not be called from outside the i2c I/O
870 i2c_set_slave_internal(struct usb_ov511 *ov, unsigned char slave)
874 rc = reg_w(ov, R51x_I2C_W_SID, slave);
878 rc = reg_w(ov, R51x_I2C_R_SID, slave + 1);
885 /* Write to a specific I2C slave ID and register, using the specified mask */
887 i2c_w_slave(struct usb_ov511 *ov,
897 /* Set new slave IDs */
898 rc = i2c_set_slave_internal(ov, slave);
902 rc = ov51x_i2c_write_mask_internal(ov, reg, value, mask);
905 /* Restore primary IDs */
906 if (i2c_set_slave_internal(ov, ov->primary_i2c_slave) < 0)
907 err("Couldn't restore primary I2C slave");
913 /* Read from a specific I2C slave ID and register */
915 i2c_r_slave(struct usb_ov511 *ov,
923 /* Set new slave IDs */
924 rc = i2c_set_slave_internal(ov, slave);
928 if (ov->bclass == BCL_OV518)
929 rc = ov518_i2c_read_internal(ov, reg);
931 rc = ov511_i2c_read_internal(ov, reg);
934 /* Restore primary IDs */
935 if (i2c_set_slave_internal(ov, ov->primary_i2c_slave) < 0)
936 err("Couldn't restore primary I2C slave");
942 /* Sets I2C read and write slave IDs. Returns <0 for error */
944 ov51x_set_slave_ids(struct usb_ov511 *ov, unsigned char sid)
950 rc = i2c_set_slave_internal(ov, sid);
954 // FIXME: Is this actually necessary?
955 rc = ov51x_reset(ov, OV511_RESET_NOREGS);
962 write_regvals(struct usb_ov511 *ov, struct ov511_regvals * pRegvals)
966 while (pRegvals->bus != OV511_DONE_BUS) {
967 if (pRegvals->bus == OV511_REG_BUS) {
968 if ((rc = reg_w(ov, pRegvals->reg, pRegvals->val)) < 0)
970 } else if (pRegvals->bus == OV511_I2C_BUS) {
971 if ((rc = i2c_w(ov, pRegvals->reg, pRegvals->val)) < 0)
974 err("Bad regval array");
984 dump_i2c_range(struct usb_ov511 *ov, int reg1, int regn)
988 for (i = reg1; i <= regn; i++) {
990 info("Sensor[0x%02X] = 0x%02X", i, rc);
995 dump_i2c_regs(struct usb_ov511 *ov)
998 dump_i2c_range(ov, 0x00, 0x7C);
1002 dump_reg_range(struct usb_ov511 *ov, int reg1, int regn)
1006 for (i = reg1; i <= regn; i++) {
1008 info("OV511[0x%02X] = 0x%02X", i, rc);
1013 ov511_dump_regs(struct usb_ov511 *ov)
1015 info("CAMERA INTERFACE REGS");
1016 dump_reg_range(ov, 0x10, 0x1f);
1017 info("DRAM INTERFACE REGS");
1018 dump_reg_range(ov, 0x20, 0x23);
1019 info("ISO FIFO REGS");
1020 dump_reg_range(ov, 0x30, 0x31);
1022 dump_reg_range(ov, 0x38, 0x39);
1023 dump_reg_range(ov, 0x3e, 0x3e);
1025 dump_reg_range(ov, 0x40, 0x49);
1026 info("SYSTEM CONTROL REGS");
1027 dump_reg_range(ov, 0x50, 0x55);
1028 dump_reg_range(ov, 0x5e, 0x5f);
1029 info("OmniCE REGS");
1030 dump_reg_range(ov, 0x70, 0x79);
1031 /* NOTE: Quantization tables are not readable. You will get the value
1032 * in reg. 0x79 for every table register */
1033 dump_reg_range(ov, 0x80, 0x9f);
1034 dump_reg_range(ov, 0xa0, 0xbf);
1039 ov518_dump_regs(struct usb_ov511 *ov)
1041 info("VIDEO MODE REGS");
1042 dump_reg_range(ov, 0x20, 0x2f);
1043 info("DATA PUMP AND SNAPSHOT REGS");
1044 dump_reg_range(ov, 0x30, 0x3f);
1046 dump_reg_range(ov, 0x40, 0x4f);
1047 info("SYSTEM CONTROL AND VENDOR REGS");
1048 dump_reg_range(ov, 0x50, 0x5f);
1050 dump_reg_range(ov, 0x60, 0x6f);
1052 dump_reg_range(ov, 0x70, 0x7f);
1053 info("Y QUANTIZATION TABLE");
1054 dump_reg_range(ov, 0x80, 0x8f);
1055 info("UV QUANTIZATION TABLE");
1056 dump_reg_range(ov, 0x90, 0x9f);
1058 dump_reg_range(ov, 0xa0, 0xbf);
1060 dump_reg_range(ov, 0xc0, 0xcf);
1064 /*****************************************************************************/
1066 /* Temporarily stops OV511 from functioning. Must do this before changing
1067 * registers while the camera is streaming */
1069 ov51x_stop(struct usb_ov511 *ov)
1071 PDEBUG(4, "stopping");
1073 if (ov->bclass == BCL_OV518)
1074 return (reg_w_mask(ov, R51x_SYS_RESET, 0x3a, 0x3a));
1076 return (reg_w(ov, R51x_SYS_RESET, 0x3d));
1079 /* Restarts OV511 after ov511_stop() is called. Has no effect if it is not
1080 * actually stopped (for performance). */
1082 ov51x_restart(struct usb_ov511 *ov)
1085 PDEBUG(4, "restarting");
1088 /* Reinitialize the stream */
1089 if (ov->bclass == BCL_OV518)
1090 reg_w(ov, 0x2f, 0x80);
1092 return (reg_w(ov, R51x_SYS_RESET, 0x00));
1098 /* Sleeps until no frames are active. Returns !0 if got signal */
1100 ov51x_wait_frames_inactive(struct usb_ov511 *ov)
1102 return wait_event_interruptible(ov->wq, ov->curframe < 0);
1105 /* Resets the hardware snapshot button */
1107 ov51x_clear_snapshot(struct usb_ov511 *ov)
1109 if (ov->bclass == BCL_OV511) {
1110 reg_w(ov, R51x_SYS_SNAP, 0x00);
1111 reg_w(ov, R51x_SYS_SNAP, 0x02);
1112 reg_w(ov, R51x_SYS_SNAP, 0x00);
1113 } else if (ov->bclass == BCL_OV518) {
1114 warn("snapshot reset not supported yet on OV518(+)");
1116 err("clear snap: invalid bridge type");
1121 /* Checks the status of the snapshot button. Returns 1 if it was pressed since
1122 * it was last cleared, and zero in all other cases (including errors) */
1124 ov51x_check_snapshot(struct usb_ov511 *ov)
1126 int ret, status = 0;
1128 if (ov->bclass == BCL_OV511) {
1129 ret = reg_r(ov, R51x_SYS_SNAP);
1131 err("Error checking snspshot status (%d)", ret);
1132 } else if (ret & 0x08) {
1135 } else if (ov->bclass == BCL_OV518) {
1136 warn("snapshot check not supported yet on OV518(+)");
1138 err("check snap: invalid bridge type");
1145 /* This does an initial reset of an OmniVision sensor and ensures that I2C
1146 * is synchronized. Returns <0 for failure.
1149 init_ov_sensor(struct usb_ov511 *ov)
1153 /* Reset the sensor */
1154 if (i2c_w(ov, 0x12, 0x80) < 0)
1157 /* Wait for it to initialize */
1160 for (i = 0, success = 0; i < i2c_detect_tries && !success; i++) {
1161 if ((i2c_r(ov, OV7610_REG_ID_HIGH) == 0x7F) &&
1162 (i2c_r(ov, OV7610_REG_ID_LOW) == 0xA2)) {
1167 /* Reset the sensor */
1168 if (i2c_w(ov, 0x12, 0x80) < 0)
1170 /* Wait for it to initialize */
1172 /* Dummy read to sync I2C */
1173 if (i2c_r(ov, 0x00) < 0)
1180 PDEBUG(1, "I2C synced in %d attempt(s)", i);
1186 ov511_set_packet_size(struct usb_ov511 *ov, int size)
1190 if (ov51x_stop(ov) < 0)
1195 if (ov->bridge == BRG_OV511) {
1197 alt = OV511_ALT_SIZE_0;
1198 else if (size == 257)
1199 alt = OV511_ALT_SIZE_257;
1200 else if (size == 513)
1201 alt = OV511_ALT_SIZE_513;
1202 else if (size == 769)
1203 alt = OV511_ALT_SIZE_769;
1204 else if (size == 993)
1205 alt = OV511_ALT_SIZE_993;
1207 err("Set packet size: invalid size (%d)", size);
1210 } else if (ov->bridge == BRG_OV511PLUS) {
1212 alt = OV511PLUS_ALT_SIZE_0;
1213 else if (size == 33)
1214 alt = OV511PLUS_ALT_SIZE_33;
1215 else if (size == 129)
1216 alt = OV511PLUS_ALT_SIZE_129;
1217 else if (size == 257)
1218 alt = OV511PLUS_ALT_SIZE_257;
1219 else if (size == 385)
1220 alt = OV511PLUS_ALT_SIZE_385;
1221 else if (size == 513)
1222 alt = OV511PLUS_ALT_SIZE_513;
1223 else if (size == 769)
1224 alt = OV511PLUS_ALT_SIZE_769;
1225 else if (size == 961)
1226 alt = OV511PLUS_ALT_SIZE_961;
1228 err("Set packet size: invalid size (%d)", size);
1232 err("Set packet size: Invalid bridge type");
1236 PDEBUG(3, "%d, mult=%d, alt=%d", size, mult, alt);
1238 if (reg_w(ov, R51x_FIFO_PSIZE, mult) < 0)
1241 if (usb_set_interface(ov->dev, ov->iface, alt) < 0) {
1242 err("Set packet size: set interface error");
1246 if (ov51x_reset(ov, OV511_RESET_NOREGS) < 0)
1249 ov->packet_size = size;
1251 if (ov51x_restart(ov) < 0)
1257 /* Note: Unlike the OV511/OV511+, the size argument does NOT include the
1258 * optional packet number byte. The actual size *is* stored in ov->packet_size,
1261 ov518_set_packet_size(struct usb_ov511 *ov, int size)
1265 if (ov51x_stop(ov) < 0)
1268 if (ov->bclass == BCL_OV518) {
1270 alt = OV518_ALT_SIZE_0;
1271 else if (size == 128)
1272 alt = OV518_ALT_SIZE_128;
1273 else if (size == 256)
1274 alt = OV518_ALT_SIZE_256;
1275 else if (size == 384)
1276 alt = OV518_ALT_SIZE_384;
1277 else if (size == 512)
1278 alt = OV518_ALT_SIZE_512;
1279 else if (size == 640)
1280 alt = OV518_ALT_SIZE_640;
1281 else if (size == 768)
1282 alt = OV518_ALT_SIZE_768;
1283 else if (size == 896)
1284 alt = OV518_ALT_SIZE_896;
1286 err("Set packet size: invalid size (%d)", size);
1290 err("Set packet size: Invalid bridge type");
1294 PDEBUG(3, "%d, alt=%d", size, alt);
1296 ov->packet_size = size;
1298 /* Program ISO FIFO size reg (packet number isn't included) */
1299 ov518_reg_w32(ov, 0x30, size, 2);
1301 if (ov->packet_numbering)
1305 if (usb_set_interface(ov->dev, ov->iface, alt) < 0) {
1306 err("Set packet size: set interface error");
1310 /* Initialize the stream */
1311 if (reg_w(ov, 0x2f, 0x80) < 0)
1314 if (ov51x_restart(ov) < 0)
1317 if (ov51x_reset(ov, OV511_RESET_NOREGS) < 0)
1323 /* Upload compression params and quantization tables. Returns 0 for success. */
1325 ov511_init_compression(struct usb_ov511 *ov)
1329 if (!ov->compress_inited) {
1330 reg_w(ov, 0x70, phy);
1331 reg_w(ov, 0x71, phuv);
1332 reg_w(ov, 0x72, pvy);
1333 reg_w(ov, 0x73, pvuv);
1334 reg_w(ov, 0x74, qhy);
1335 reg_w(ov, 0x75, qhuv);
1336 reg_w(ov, 0x76, qvy);
1337 reg_w(ov, 0x77, qvuv);
1339 if (ov511_upload_quan_tables(ov) < 0) {
1340 err("Error uploading quantization tables");
1346 ov->compress_inited = 1;
1351 /* Upload compression params and quantization tables. Returns 0 for success. */
1353 ov518_init_compression(struct usb_ov511 *ov)
1357 if (!ov->compress_inited) {
1358 if (ov518_upload_quan_tables(ov) < 0) {
1359 err("Error uploading quantization tables");
1365 ov->compress_inited = 1;
1370 /* -------------------------------------------------------------------------- */
1372 /* Sets sensor's contrast setting to "val" */
1374 sensor_set_contrast(struct usb_ov511 *ov, unsigned short val)
1378 PDEBUG(3, "%d", val);
1380 if (ov->stop_during_set)
1381 if (ov51x_stop(ov) < 0)
1384 switch (ov->sensor) {
1388 rc = i2c_w(ov, OV7610_REG_CNT, val >> 8);
1395 rc = i2c_w_mask(ov, OV7610_REG_CNT, val >> 12, 0x0f);
1402 unsigned char ctab[] = {
1403 0x01, 0x05, 0x09, 0x11, 0x15, 0x35, 0x37, 0x57,
1404 0x5b, 0xa5, 0xa7, 0xc7, 0xc9, 0xcf, 0xef, 0xff
1407 /* Use Y gamma control instead. Bit 0 enables it. */
1408 rc = i2c_w(ov, 0x64, ctab[val>>12]);
1415 rc = i2c_w(ov, 0x0b, val >> 9);
1422 PDEBUG(3, "Unsupported with this sensor");
1428 rc = 0; /* Success */
1431 if (ov51x_restart(ov) < 0)
1437 /* Gets sensor's contrast setting */
1439 sensor_get_contrast(struct usb_ov511 *ov, unsigned short *val)
1443 switch (ov->sensor) {
1446 rc = i2c_r(ov, OV7610_REG_CNT);
1453 rc = i2c_r(ov, OV7610_REG_CNT);
1460 /* Use Y gamma reg instead. Bit 0 is the enable bit. */
1461 rc = i2c_r(ov, 0x64);
1465 *val = (rc & 0xfe) << 8;
1468 *val = ov->contrast;
1471 PDEBUG(3, "Unsupported with this sensor");
1475 PDEBUG(3, "%d", *val);
1476 ov->contrast = *val;
1481 /* -------------------------------------------------------------------------- */
1483 /* Sets sensor's brightness setting to "val" */
1485 sensor_set_brightness(struct usb_ov511 *ov, unsigned short val)
1489 PDEBUG(4, "%d", val);
1491 if (ov->stop_during_set)
1492 if (ov51x_stop(ov) < 0)
1495 switch (ov->sensor) {
1500 rc = i2c_w(ov, OV7610_REG_BRT, val >> 8);
1505 /* 7620 doesn't like manual changes when in auto mode */
1506 if (!ov->auto_brt) {
1507 rc = i2c_w(ov, OV7610_REG_BRT, val >> 8);
1513 rc = i2c_w(ov, 0x0a, val >> 8);
1518 PDEBUG(3, "Unsupported with this sensor");
1523 rc = 0; /* Success */
1524 ov->brightness = val;
1526 if (ov51x_restart(ov) < 0)
1532 /* Gets sensor's brightness setting */
1534 sensor_get_brightness(struct usb_ov511 *ov, unsigned short *val)
1538 switch (ov->sensor) {
1544 rc = i2c_r(ov, OV7610_REG_BRT);
1551 *val = ov->brightness;
1554 PDEBUG(3, "Unsupported with this sensor");
1558 PDEBUG(3, "%d", *val);
1559 ov->brightness = *val;
1564 /* -------------------------------------------------------------------------- */
1566 /* Sets sensor's saturation (color intensity) setting to "val" */
1568 sensor_set_saturation(struct usb_ov511 *ov, unsigned short val)
1572 PDEBUG(3, "%d", val);
1574 if (ov->stop_during_set)
1575 if (ov51x_stop(ov) < 0)
1578 switch (ov->sensor) {
1583 rc = i2c_w(ov, OV7610_REG_SAT, val >> 8);
1588 // /* Use UV gamma control instead. Bits 0 & 7 are reserved. */
1589 // rc = ov_i2c_write(ov->dev, 0x62, (val >> 9) & 0x7e);
1592 rc = i2c_w(ov, OV7610_REG_SAT, val >> 8);
1597 rc = i2c_w(ov, 0x0c, val >> 9);
1602 PDEBUG(3, "Unsupported with this sensor");
1607 rc = 0; /* Success */
1610 if (ov51x_restart(ov) < 0)
1616 /* Gets sensor's saturation (color intensity) setting */
1618 sensor_get_saturation(struct usb_ov511 *ov, unsigned short *val)
1622 switch (ov->sensor) {
1627 rc = i2c_r(ov, OV7610_REG_SAT);
1634 // /* Use UV gamma reg instead. Bits 0 & 7 are reserved. */
1635 // rc = i2c_r(ov, 0x62);
1639 // *val = (rc & 0x7e) << 9;
1640 rc = i2c_r(ov, OV7610_REG_SAT);
1650 PDEBUG(3, "Unsupported with this sensor");
1654 PDEBUG(3, "%d", *val);
1660 /* -------------------------------------------------------------------------- */
1662 /* Sets sensor's hue (red/blue balance) setting to "val" */
1664 sensor_set_hue(struct usb_ov511 *ov, unsigned short val)
1668 PDEBUG(3, "%d", val);
1670 if (ov->stop_during_set)
1671 if (ov51x_stop(ov) < 0)
1674 switch (ov->sensor) {
1678 rc = i2c_w(ov, OV7610_REG_RED, 0xFF - (val >> 8));
1682 rc = i2c_w(ov, OV7610_REG_BLUE, val >> 8);
1687 // Hue control is causing problems. I will enable it once it's fixed.
1689 rc = i2c_w(ov, 0x7a, (unsigned char)(val >> 8) + 0xb);
1693 rc = i2c_w(ov, 0x79, (unsigned char)(val >> 8) + 0xb);
1699 rc = i2c_w(ov, 0x0d, (val + 32768) >> 8);
1704 PDEBUG(3, "Unsupported with this sensor");
1709 rc = 0; /* Success */
1712 if (ov51x_restart(ov) < 0)
1718 /* Gets sensor's hue (red/blue balance) setting */
1720 sensor_get_hue(struct usb_ov511 *ov, unsigned short *val)
1724 switch (ov->sensor) {
1728 rc = i2c_r(ov, OV7610_REG_BLUE);
1735 rc = i2c_r(ov, 0x7a);
1745 PDEBUG(3, "Unsupported with this sensor");
1749 PDEBUG(3, "%d", *val);
1755 /* -------------------------------------------------------------------------- */
1758 sensor_set_picture(struct usb_ov511 *ov, struct video_picture *p)
1762 PDEBUG(4, "sensor_set_picture");
1764 ov->whiteness = p->whiteness;
1766 /* Don't return error if a setting is unsupported, or rest of settings
1767 * will not be performed */
1769 rc = sensor_set_contrast(ov, p->contrast);
1770 if (FATAL_ERROR(rc))
1773 rc = sensor_set_brightness(ov, p->brightness);
1774 if (FATAL_ERROR(rc))
1777 rc = sensor_set_saturation(ov, p->colour);
1778 if (FATAL_ERROR(rc))
1781 rc = sensor_set_hue(ov, p->hue);
1782 if (FATAL_ERROR(rc))
1789 sensor_get_picture(struct usb_ov511 *ov, struct video_picture *p)
1793 PDEBUG(4, "sensor_get_picture");
1795 /* Don't return error if a setting is unsupported, or rest of settings
1796 * will not be performed */
1798 rc = sensor_get_contrast(ov, &(p->contrast));
1799 if (FATAL_ERROR(rc))
1802 rc = sensor_get_brightness(ov, &(p->brightness));
1803 if (FATAL_ERROR(rc))
1806 rc = sensor_get_saturation(ov, &(p->colour));
1807 if (FATAL_ERROR(rc))
1810 rc = sensor_get_hue(ov, &(p->hue));
1811 if (FATAL_ERROR(rc))
1814 p->whiteness = 105 << 8;
1820 // FIXME: Exposure range is only 0x00-0x7f in interlace mode
1821 /* Sets current exposure for sensor. This only has an effect if auto-exposure
1824 sensor_set_exposure(struct usb_ov511 *ov, unsigned char val)
1828 PDEBUG(3, "%d", val);
1830 if (ov->stop_during_set)
1831 if (ov51x_stop(ov) < 0)
1834 switch (ov->sensor) {
1841 rc = i2c_w(ov, 0x10, val);
1849 PDEBUG(3, "Unsupported with this sensor");
1852 err("Sensor not supported for set_exposure");
1856 rc = 0; /* Success */
1859 if (ov51x_restart(ov) < 0)
1866 /* Gets current exposure level from sensor, regardless of whether it is under
1867 * manual control. */
1869 sensor_get_exposure(struct usb_ov511 *ov, unsigned char *val)
1873 switch (ov->sensor) {
1880 rc = i2c_r(ov, 0x10);
1890 PDEBUG(3, "Unsupported with this sensor");
1893 err("Sensor not supported for get_exposure");
1897 PDEBUG(3, "%d", *val);
1898 ov->exposure = *val;
1903 /* Turns on or off the LED. Only has an effect with OV511+/OV518(+) */
1905 ov51x_led_control(struct usb_ov511 *ov, int enable)
1907 PDEBUG(4, " (%s)", enable ? "turn on" : "turn off");
1909 if (ov->bridge == BRG_OV511PLUS)
1910 reg_w(ov, R511_SYS_LED_CTL, enable ? 1 : 0);
1911 else if (ov->bclass == BCL_OV518)
1912 reg_w_mask(ov, R518_GPIO_OUT, enable ? 0x02 : 0x00, 0x02);
1917 /* Matches the sensor's internal frame rate to the lighting frequency.
1918 * Valid frequencies are:
1919 * 50 - 50Hz, for European and Asian lighting
1920 * 60 - 60Hz, for American lighting
1922 * Tested with: OV7610, OV7620, OV76BE, OV6620
1923 * Unsupported: KS0127, KS0127B, SAA7111A
1924 * Returns: 0 for success
1927 sensor_set_light_freq(struct usb_ov511 *ov, int freq)
1931 PDEBUG(4, "%d Hz", freq);
1935 else if (freq == 50)
1938 err("Invalid light freq (%d Hz)", freq);
1942 switch (ov->sensor) {
1944 i2c_w_mask(ov, 0x2a, sixty?0x00:0x80, 0x80);
1945 i2c_w(ov, 0x2b, sixty?0x00:0xac);
1946 i2c_w_mask(ov, 0x13, 0x10, 0x10);
1947 i2c_w_mask(ov, 0x13, 0x00, 0x10);
1952 i2c_w_mask(ov, 0x2a, sixty?0x00:0x80, 0x80);
1953 i2c_w(ov, 0x2b, sixty?0x00:0xac);
1954 i2c_w_mask(ov, 0x76, 0x01, 0x01);
1958 i2c_w(ov, 0x2b, sixty?0xa8:0x28);
1959 i2c_w(ov, 0x2a, sixty?0x84:0xa4);
1964 PDEBUG(5, "Unsupported with this sensor");
1967 err("Sensor not supported for set_light_freq");
1971 ov->lightfreq = freq;
1976 /* If enable is true, turn on the sensor's banding filter, otherwise turn it
1977 * off. This filter tries to reduce the pattern of horizontal light/dark bands
1978 * caused by some (usually fluorescent) lighting. The light frequency must be
1979 * set either before or after enabling it with ov51x_set_light_freq().
1981 * Tested with: OV7610, OV7620, OV76BE, OV6620.
1982 * Unsupported: KS0127, KS0127B, SAA7111A
1983 * Returns: 0 for success
1986 sensor_set_banding_filter(struct usb_ov511 *ov, int enable)
1990 PDEBUG(4, " (%s)", enable ? "turn on" : "turn off");
1992 if (ov->sensor == SEN_KS0127 || ov->sensor == SEN_KS0127B
1993 || ov->sensor == SEN_SAA7111A) {
1994 PDEBUG(5, "Unsupported with this sensor");
1998 rc = i2c_w_mask(ov, 0x2d, enable?0x04:0x00, 0x04);
2002 ov->bandfilt = enable;
2007 /* If enable is true, turn on the sensor's auto brightness control, otherwise
2010 * Unsupported: KS0127, KS0127B, SAA7111A
2011 * Returns: 0 for success
2014 sensor_set_auto_brightness(struct usb_ov511 *ov, int enable)
2018 PDEBUG(4, " (%s)", enable ? "turn on" : "turn off");
2020 if (ov->sensor == SEN_KS0127 || ov->sensor == SEN_KS0127B
2021 || ov->sensor == SEN_SAA7111A) {
2022 PDEBUG(5, "Unsupported with this sensor");
2026 rc = i2c_w_mask(ov, 0x2d, enable?0x10:0x00, 0x10);
2030 ov->auto_brt = enable;
2035 /* If enable is true, turn on the sensor's auto exposure control, otherwise
2038 * Unsupported: KS0127, KS0127B, SAA7111A
2039 * Returns: 0 for success
2042 sensor_set_auto_exposure(struct usb_ov511 *ov, int enable)
2044 PDEBUG(4, " (%s)", enable ? "turn on" : "turn off");
2046 switch (ov->sensor) {
2048 i2c_w_mask(ov, 0x29, enable?0x00:0x80, 0x80);
2054 i2c_w_mask(ov, 0x13, enable?0x01:0x00, 0x01);
2057 i2c_w_mask(ov, 0x28, enable?0x00:0x10, 0x10);
2062 PDEBUG(5, "Unsupported with this sensor");
2065 err("Sensor not supported for set_auto_exposure");
2069 ov->auto_exp = enable;
2074 /* Modifies the sensor's exposure algorithm to allow proper exposure of objects
2075 * that are illuminated from behind.
2077 * Tested with: OV6620, OV7620
2078 * Unsupported: OV7610, OV76BE, KS0127, KS0127B, SAA7111A
2079 * Returns: 0 for success
2082 sensor_set_backlight(struct usb_ov511 *ov, int enable)
2084 PDEBUG(4, " (%s)", enable ? "turn on" : "turn off");
2086 switch (ov->sensor) {
2089 i2c_w_mask(ov, 0x68, enable?0xe0:0xc0, 0xe0);
2090 i2c_w_mask(ov, 0x29, enable?0x08:0x00, 0x08);
2091 i2c_w_mask(ov, 0x28, enable?0x02:0x00, 0x02);
2094 i2c_w_mask(ov, 0x4e, enable?0xe0:0xc0, 0xe0);
2095 i2c_w_mask(ov, 0x29, enable?0x08:0x00, 0x08);
2096 i2c_w_mask(ov, 0x0e, enable?0x80:0x00, 0x80);
2099 i2c_w_mask(ov, 0x4e, enable?0x80:0x60, 0xe0);
2100 i2c_w_mask(ov, 0x29, enable?0x08:0x00, 0x08);
2101 i2c_w_mask(ov, 0x28, enable?0x02:0x00, 0x02);
2108 PDEBUG(5, "Unsupported with this sensor");
2111 err("Sensor not supported for set_backlight");
2115 ov->backlight = enable;
2121 sensor_set_mirror(struct usb_ov511 *ov, int enable)
2123 PDEBUG(4, " (%s)", enable ? "turn on" : "turn off");
2125 switch (ov->sensor) {
2132 i2c_w_mask(ov, 0x12, enable?0x40:0x00, 0x40);
2137 PDEBUG(5, "Unsupported with this sensor");
2140 err("Sensor not supported for set_mirror");
2144 ov->mirror = enable;
2149 /* Returns number of bits per pixel (regardless of where they are located;
2150 * planar or not), or zero for unsupported format.
2153 get_depth(int palette)
2156 case VIDEO_PALETTE_GREY: return 8;
2157 case VIDEO_PALETTE_YUV420: return 12;
2158 case VIDEO_PALETTE_YUV420P: return 12; /* Planar */
2159 default: return 0; /* Invalid format */
2163 /* Bytes per frame. Used by read(). Return of 0 indicates error */
2164 static inline long int
2165 get_frame_length(struct ov511_frame *frame)
2170 return ((frame->width * frame->height
2171 * get_depth(frame->format)) >> 3);
2175 mode_init_ov_sensor_regs(struct usb_ov511 *ov, int width, int height,
2176 int mode, int sub_flag, int qvga)
2180 /******** Mode (VGA/QVGA) and sensor specific regs ********/
2182 switch (ov->sensor) {
2184 i2c_w(ov, 0x14, qvga?0x24:0x04);
2185 // FIXME: Does this improve the image quality or frame rate?
2187 i2c_w_mask(ov, 0x28, qvga?0x00:0x20, 0x20);
2188 i2c_w(ov, 0x24, 0x10);
2189 i2c_w(ov, 0x25, qvga?0x40:0x8a);
2190 i2c_w(ov, 0x2f, qvga?0x30:0xb0);
2191 i2c_w(ov, 0x35, qvga?0x1c:0x9c);
2195 // i2c_w(ov, 0x2b, 0x00);
2196 i2c_w(ov, 0x14, qvga?0xa4:0x84);
2197 i2c_w_mask(ov, 0x28, qvga?0x00:0x20, 0x20);
2198 i2c_w(ov, 0x24, qvga?0x20:0x3a);
2199 i2c_w(ov, 0x25, qvga?0x30:0x60);
2200 i2c_w_mask(ov, 0x2d, qvga?0x40:0x00, 0x40);
2201 i2c_w_mask(ov, 0x67, qvga?0xf0:0x90, 0xf0);
2202 i2c_w_mask(ov, 0x74, qvga?0x20:0x00, 0x20);
2205 // i2c_w(ov, 0x2b, 0x00);
2206 i2c_w(ov, 0x14, qvga?0xa4:0x84);
2207 // FIXME: Enable this once 7620AE uses 7620 initial settings
2209 i2c_w_mask(ov, 0x28, qvga?0x00:0x20, 0x20);
2210 i2c_w(ov, 0x24, qvga?0x20:0x3a);
2211 i2c_w(ov, 0x25, qvga?0x30:0x60);
2212 i2c_w_mask(ov, 0x2d, qvga?0x40:0x00, 0x40);
2213 i2c_w_mask(ov, 0x67, qvga?0xb0:0x90, 0xf0);
2214 i2c_w_mask(ov, 0x74, qvga?0x20:0x00, 0x20);
2218 i2c_w(ov, 0x14, qvga?0x24:0x04);
2221 i2c_w(ov, 0x14, qvga?0xa0:0x80);
2224 err("Invalid sensor");
2228 /******** Palette-specific regs ********/
2230 if (mode == VIDEO_PALETTE_GREY) {
2231 if (ov->sensor == SEN_OV7610 || ov->sensor == SEN_OV76BE) {
2232 /* these aren't valid on the OV6620/OV7620/6630? */
2233 i2c_w_mask(ov, 0x0e, 0x40, 0x40);
2236 if (ov->sensor == SEN_OV6630 && ov->bridge == BRG_OV518
2238 i2c_w_mask(ov, 0x12, 0x00, 0x10);
2239 i2c_w_mask(ov, 0x13, 0x00, 0x20);
2241 i2c_w_mask(ov, 0x13, 0x20, 0x20);
2244 if (ov->sensor == SEN_OV7610 || ov->sensor == SEN_OV76BE) {
2245 /* not valid on the OV6620/OV7620/6630? */
2246 i2c_w_mask(ov, 0x0e, 0x00, 0x40);
2249 /* The OV518 needs special treatment. Although both the OV518
2250 * and the OV6630 support a 16-bit video bus, only the 8 bit Y
2251 * bus is actually used. The UV bus is tied to ground.
2252 * Therefore, the OV6630 needs to be in 8-bit multiplexed
2255 if (ov->sensor == SEN_OV6630 && ov->bridge == BRG_OV518
2257 i2c_w_mask(ov, 0x12, 0x10, 0x10);
2258 i2c_w_mask(ov, 0x13, 0x20, 0x20);
2260 i2c_w_mask(ov, 0x13, 0x00, 0x20);
2264 /******** Clock programming ********/
2266 /* The OV6620 needs special handling. This prevents the
2267 * severe banding that normally occurs */
2268 if (ov->sensor == SEN_OV6620 || ov->sensor == SEN_OV6630)
2272 i2c_w(ov, 0x2a, 0x04);
2275 // clock = 0; /* This ensures the highest frame rate */
2277 } else if (clockdiv == -1) { /* If user didn't override it */
2278 clock = 3; /* Gives better exposure time */
2283 PDEBUG(4, "Setting clock divisor to %d", clock);
2285 i2c_w(ov, 0x11, clock);
2287 i2c_w(ov, 0x2a, 0x84);
2288 /* This next setting is critical. It seems to improve
2289 * the gain or the contrast. The "reserved" bits seem
2290 * to have some effect in this case. */
2291 i2c_w(ov, 0x2d, 0x85);
2296 clock = 1; /* This ensures the highest frame rate */
2297 } else if (clockdiv == -1) { /* If user didn't override it */
2298 /* Calculate and set the clock divisor */
2299 clock = ((sub_flag ? ov->subw * ov->subh
2301 * (mode == VIDEO_PALETTE_GREY ? 2 : 3) / 2)
2307 PDEBUG(4, "Setting clock divisor to %d", clock);
2309 i2c_w(ov, 0x11, clock);
2312 /******** Special Features ********/
2315 i2c_w(ov, 0x16, framedrop);
2318 i2c_w_mask(ov, 0x12, (testpat?0x02:0x00), 0x02);
2320 /* Enable auto white balance */
2321 i2c_w_mask(ov, 0x12, 0x04, 0x04);
2323 // This will go away as soon as ov51x_mode_init_sensor_regs()
2325 /* 7620/6620/6630? don't have register 0x35, so play it safe */
2326 if (ov->sensor == SEN_OV7610 || ov->sensor == SEN_OV76BE) {
2327 if (width == 640 && height == 480)
2328 i2c_w(ov, 0x35, 0x9e);
2330 i2c_w(ov, 0x35, 0x1e);
2337 set_ov_sensor_window(struct usb_ov511 *ov, int width, int height, int mode,
2341 int hwsbase, hwebase, vwsbase, vwebase, hwsize, vwsize;
2342 int hoffset, voffset, hwscale = 0, vwscale = 0;
2344 /* The different sensor ICs handle setting up of window differently.
2345 * IF YOU SET IT WRONG, YOU WILL GET ALL ZERO ISOC DATA FROM OV51x!!! */
2346 switch (ov->sensor) {
2351 vwsbase = vwebase = 0x05;
2361 hwsbase = 0x2f; /* From 7620.SET (spec is wrong) */
2363 vwsbase = vwebase = 0x05;
2366 err("Invalid sensor");
2370 if (ov->sensor == SEN_OV6620 || ov->sensor == SEN_OV6630) {
2371 /* Note: OV518(+) does downsample on its own) */
2372 if ((width > 176 && height > 144)
2373 || ov->bclass == BCL_OV518) { /* CIF */
2374 ret = mode_init_ov_sensor_regs(ov, width, height,
2379 vwscale = 1; /* The datasheet says 0; it's wrong */
2382 } else if (width > 176 || height > 144) {
2383 err("Illegal dimensions");
2386 ret = mode_init_ov_sensor_regs(ov, width, height,
2394 if (width > 320 && height > 240) { /* VGA */
2395 ret = mode_init_ov_sensor_regs(ov, width, height,
2403 } else if (width > 320 || height > 240) {
2404 err("Illegal dimensions");
2407 ret = mode_init_ov_sensor_regs(ov, width, height,
2417 /* Center the window */
2418 hoffset = ((hwsize - width) / 2) >> hwscale;
2419 voffset = ((vwsize - height) / 2) >> vwscale;
2421 /* FIXME! - This needs to be changed to support 160x120 and 6620!!! */
2423 i2c_w(ov, 0x17, hwsbase+(ov->subx>>hwscale));
2424 i2c_w(ov, 0x18, hwebase+((ov->subx+ov->subw)>>hwscale));
2425 i2c_w(ov, 0x19, vwsbase+(ov->suby>>vwscale));
2426 i2c_w(ov, 0x1a, vwebase+((ov->suby+ov->subh)>>vwscale));
2428 i2c_w(ov, 0x17, hwsbase + hoffset);
2429 i2c_w(ov, 0x18, hwebase + hoffset + (hwsize>>hwscale));
2430 i2c_w(ov, 0x19, vwsbase + voffset);
2431 i2c_w(ov, 0x1a, vwebase + voffset + (vwsize>>vwscale));
2442 /* Set up the OV511/OV511+ with the given image parameters.
2444 * Do not put any sensor-specific code in here (including I2C I/O functions)
2447 ov511_mode_init_regs(struct usb_ov511 *ov,
2448 int width, int height, int mode, int sub_flag)
2457 PDEBUG(3, "width:%d, height:%d, mode:%d, sub:%d",
2458 width, height, mode, sub_flag);
2460 // FIXME: This should be moved to a 7111a-specific function once
2461 // subcapture is dealt with properly
2462 if (ov->sensor == SEN_SAA7111A) {
2463 if (width == 320 && height == 240) {
2464 /* No need to do anything special */
2465 } else if (width == 640 && height == 480) {
2466 /* Set the OV511 up as 320x480, but keep the
2467 * V4L resolution as 640x480 */
2470 err("SAA7111A only allows 320x240 or 640x480");
2475 /* Make sure width and height are a multiple of 8 */
2476 if (width % 8 || height % 8) {
2477 err("Invalid size (%d, %d) (mode = %d)", width, height, mode);
2481 if (width < ov->minwidth || height < ov->minheight) {
2482 err("Requested dimensions are too small");
2486 if (ov51x_stop(ov) < 0)
2489 if (mode == VIDEO_PALETTE_GREY) {
2490 reg_w(ov, R511_CAM_UV_EN, 0x00);
2491 reg_w(ov, R511_SNAP_UV_EN, 0x00);
2492 reg_w(ov, R511_SNAP_OPTS, 0x01);
2494 reg_w(ov, R511_CAM_UV_EN, 0x01);
2495 reg_w(ov, R511_SNAP_UV_EN, 0x01);
2496 reg_w(ov, R511_SNAP_OPTS, 0x03);
2499 /* Here I'm assuming that snapshot size == image size.
2500 * I hope that's always true. --claudio
2502 hsegs = (width >> 3) - 1;
2503 vsegs = (height >> 3) - 1;
2505 reg_w(ov, R511_CAM_PXCNT, hsegs);
2506 reg_w(ov, R511_CAM_LNCNT, vsegs);
2507 reg_w(ov, R511_CAM_PXDIV, 0x00);
2508 reg_w(ov, R511_CAM_LNDIV, 0x00);
2510 /* YUV420, low pass filter on */
2511 reg_w(ov, R511_CAM_OPTS, 0x03);
2513 /* Snapshot additions */
2514 reg_w(ov, R511_SNAP_PXCNT, hsegs);
2515 reg_w(ov, R511_SNAP_LNCNT, vsegs);
2516 reg_w(ov, R511_SNAP_PXDIV, 0x00);
2517 reg_w(ov, R511_SNAP_LNDIV, 0x00);
2520 /* Enable Y and UV quantization and compression */
2521 reg_w(ov, R511_COMP_EN, 0x07);
2522 reg_w(ov, R511_COMP_LUT_EN, 0x03);
2523 ov51x_reset(ov, OV511_RESET_OMNICE);
2526 if (ov51x_restart(ov) < 0)
2532 /* Sets up the OV518/OV518+ with the given image parameters
2534 * OV518 needs a completely different approach, until we can figure out what
2535 * the individual registers do. Also, only 15 FPS is supported now.
2537 * Do not put any sensor-specific code in here (including I2C I/O functions)
2540 ov518_mode_init_regs(struct usb_ov511 *ov,
2541 int width, int height, int mode, int sub_flag)
2543 int hsegs, vsegs, hi_res;
2550 PDEBUG(3, "width:%d, height:%d, mode:%d, sub:%d",
2551 width, height, mode, sub_flag);
2553 if (width % 16 || height % 8) {
2554 err("Invalid size (%d, %d)", width, height);
2558 if (width < ov->minwidth || height < ov->minheight) {
2559 err("Requested dimensions are too small");
2563 if (width >= 320 && height >= 240) {
2565 } else if (width >= 320 || height >= 240) {
2566 err("Invalid width/height combination (%d, %d)", width, height);
2572 if (ov51x_stop(ov) < 0)
2575 /******** Set the mode ********/
2586 if (ov->bridge == BRG_OV518 && ov518_color) {
2587 /* OV518 needs U and V swapped */
2588 i2c_w_mask(ov, 0x15, 0x00, 0x01);
2590 if (mode == VIDEO_PALETTE_GREY) {
2591 /* Set 16-bit input format (UV data are ignored) */
2592 reg_w_mask(ov, 0x20, 0x00, 0x08);
2594 /* Set 8-bit (4:0:0) output format */
2595 reg_w_mask(ov, 0x28, 0x00, 0xf0);
2596 reg_w_mask(ov, 0x38, 0x00, 0xf0);
2598 /* Set 8-bit (YVYU) input format */
2599 reg_w_mask(ov, 0x20, 0x08, 0x08);
2601 /* Set 12-bit (4:2:0) output format */
2602 reg_w_mask(ov, 0x28, 0x80, 0xf0);
2603 reg_w_mask(ov, 0x38, 0x80, 0xf0);
2606 reg_w(ov, 0x28, (mode == VIDEO_PALETTE_GREY) ? 0x00:0x80);
2607 reg_w(ov, 0x38, (mode == VIDEO_PALETTE_GREY) ? 0x00:0x80);
2613 reg_w(ov, 0x29, hsegs);
2614 reg_w(ov, 0x2a, vsegs);
2616 reg_w(ov, 0x39, hsegs);
2617 reg_w(ov, 0x3a, vsegs);
2619 /* Windows driver does this here; who knows why */
2620 reg_w(ov, 0x2f, 0x80);
2622 /******** Set the framerate (to 15 FPS) ********/
2624 /* Mode independent, but framerate dependent, regs */
2625 reg_w(ov, 0x51, 0x02); /* Clock divider; lower==faster */
2626 reg_w(ov, 0x22, 0x18);
2627 reg_w(ov, 0x23, 0xff);
2629 if (ov->bridge == BRG_OV518PLUS)
2630 reg_w(ov, 0x21, 0x19);
2632 reg_w(ov, 0x71, 0x19); /* Compression-related? */
2634 // FIXME: Sensor-specific
2635 /* Bit 5 is what matters here. Of course, it is "reserved" */
2636 i2c_w(ov, 0x54, 0x23);
2638 reg_w(ov, 0x2f, 0x80);
2640 if (ov->bridge == BRG_OV518PLUS) {
2641 reg_w(ov, 0x24, 0x94);
2642 reg_w(ov, 0x25, 0x90);
2643 ov518_reg_w32(ov, 0xc4, 400, 2); /* 190h */
2644 ov518_reg_w32(ov, 0xc6, 540, 2); /* 21ch */
2645 ov518_reg_w32(ov, 0xc7, 540, 2); /* 21ch */
2646 ov518_reg_w32(ov, 0xc8, 108, 2); /* 6ch */
2647 ov518_reg_w32(ov, 0xca, 131098, 3); /* 2001ah */
2648 ov518_reg_w32(ov, 0xcb, 532, 2); /* 214h */
2649 ov518_reg_w32(ov, 0xcc, 2400, 2); /* 960h */
2650 ov518_reg_w32(ov, 0xcd, 32, 2); /* 20h */
2651 ov518_reg_w32(ov, 0xce, 608, 2); /* 260h */
2653 reg_w(ov, 0x24, 0x9f);
2654 reg_w(ov, 0x25, 0x90);
2655 ov518_reg_w32(ov, 0xc4, 400, 2); /* 190h */
2656 ov518_reg_w32(ov, 0xc6, 500, 2); /* 1f4h */
2657 ov518_reg_w32(ov, 0xc7, 500, 2); /* 1f4h */
2658 ov518_reg_w32(ov, 0xc8, 142, 2); /* 8eh */
2659 ov518_reg_w32(ov, 0xca, 131098, 3); /* 2001ah */
2660 ov518_reg_w32(ov, 0xcb, 532, 2); /* 214h */
2661 ov518_reg_w32(ov, 0xcc, 2000, 2); /* 7d0h */
2662 ov518_reg_w32(ov, 0xcd, 32, 2); /* 20h */
2663 ov518_reg_w32(ov, 0xce, 608, 2); /* 260h */
2666 reg_w(ov, 0x2f, 0x80);
2668 if (ov51x_restart(ov) < 0)
2671 /* Reset it just for good measure */
2672 if (ov51x_reset(ov, OV511_RESET_NOREGS) < 0)
2678 /* This is a wrapper around the OV511, OV518, and sensor specific functions */
2680 mode_init_regs(struct usb_ov511 *ov,
2681 int width, int height, int mode, int sub_flag)
2685 if (!ov || !ov->dev)
2688 if (ov->bclass == BCL_OV518) {
2689 rc = ov518_mode_init_regs(ov, width, height, mode, sub_flag);
2691 rc = ov511_mode_init_regs(ov, width, height, mode, sub_flag);
2694 if (FATAL_ERROR(rc))
2697 switch (ov->sensor) {
2704 rc = set_ov_sensor_window(ov, width, height, mode, sub_flag);
2708 err("KS0127-series decoders not supported yet");
2712 // rc = mode_init_saa_sensor_regs(ov, width, height, mode,
2715 PDEBUG(1, "SAA status = 0x%02X", i2c_r(ov, 0x1f));
2718 err("Unknown sensor");
2722 if (FATAL_ERROR(rc))
2725 /* Sensor-independent settings */
2726 rc = sensor_set_auto_brightness(ov, ov->auto_brt);
2727 if (FATAL_ERROR(rc))
2730 rc = sensor_set_auto_exposure(ov, ov->auto_exp);
2731 if (FATAL_ERROR(rc))
2734 rc = sensor_set_banding_filter(ov, bandingfilter);
2735 if (FATAL_ERROR(rc))
2738 if (ov->lightfreq) {
2739 rc = sensor_set_light_freq(ov, lightfreq);
2740 if (FATAL_ERROR(rc))
2744 rc = sensor_set_backlight(ov, ov->backlight);
2745 if (FATAL_ERROR(rc))
2748 rc = sensor_set_mirror(ov, ov->mirror);
2749 if (FATAL_ERROR(rc))
2755 /* This sets the default image parameters. This is useful for apps that use
2756 * read() and do not set these.
2759 ov51x_set_default_params(struct usb_ov511 *ov)
2763 /* Set default sizes in case IOCTL (VIDIOCMCAPTURE) is not used
2764 * (using read() instead). */
2765 for (i = 0; i < OV511_NUMFRAMES; i++) {
2766 ov->frame[i].width = ov->maxwidth;
2767 ov->frame[i].height = ov->maxheight;
2768 ov->frame[i].bytes_read = 0;
2770 ov->frame[i].format = force_palette;
2772 ov->frame[i].format = VIDEO_PALETTE_YUV420;
2774 ov->frame[i].depth = get_depth(ov->frame[i].format);
2777 PDEBUG(3, "%dx%d, %s", ov->maxwidth, ov->maxheight,
2778 symbolic(v4l1_plist, ov->frame[0].format));
2780 /* Initialize to max width/height, YUV420 or RGB24 (if supported) */
2781 if (mode_init_regs(ov, ov->maxwidth, ov->maxheight,
2782 ov->frame[0].format, 0) < 0)
2788 /**********************************************************************
2790 * Video decoder stuff
2792 **********************************************************************/
2794 /* Set analog input port of decoder */
2796 decoder_set_input(struct usb_ov511 *ov, int input)
2798 PDEBUG(4, "port %d", input);
2800 switch (ov->sensor) {
2804 i2c_w_mask(ov, 0x02, input, 0x07);
2805 /* Bypass chrominance trap for modes 4..7 */
2806 i2c_w_mask(ov, 0x09, (input > 3) ? 0x80:0x00, 0x80);
2816 /* Get ASCII name of video input */
2818 decoder_get_input_name(struct usb_ov511 *ov, int input, char *name)
2820 switch (ov->sensor) {
2823 if (input < 0 || input > 7)
2826 sprintf(name, "CVBS-%d", input);
2827 else // if (input < 8)
2828 sprintf(name, "S-Video-%d", input - 4);
2832 sprintf(name, "%s", "Camera");
2838 /* Set norm (NTSC, PAL, SECAM, AUTO) */
2840 decoder_set_norm(struct usb_ov511 *ov, int norm)
2842 PDEBUG(4, "%d", norm);
2844 switch (ov->sensor) {
2849 if (norm == VIDEO_MODE_NTSC) {
2850 reg_8 = 0x40; /* 60 Hz */
2851 reg_e = 0x00; /* NTSC M / PAL BGHI */
2852 } else if (norm == VIDEO_MODE_PAL) {
2853 reg_8 = 0x00; /* 50 Hz */
2854 reg_e = 0x00; /* NTSC M / PAL BGHI */
2855 } else if (norm == VIDEO_MODE_AUTO) {
2856 reg_8 = 0x80; /* Auto field detect */
2857 reg_e = 0x00; /* NTSC M / PAL BGHI */
2858 } else if (norm == VIDEO_MODE_SECAM) {
2859 reg_8 = 0x00; /* 50 Hz */
2860 reg_e = 0x50; /* SECAM / PAL 4.43 */
2865 i2c_w_mask(ov, 0x08, reg_8, 0xc0);
2866 i2c_w_mask(ov, 0x0e, reg_e, 0x70);
2876 /**********************************************************************
2880 **********************************************************************/
2882 /* Copies a 64-byte segment at pIn to an 8x8 block at pOut. The width of the
2883 * image at pOut is specified by w.
2886 make_8x8(unsigned char *pIn, unsigned char *pOut, int w)
2888 unsigned char *pOut1 = pOut;
2891 for (y = 0; y < 8; y++) {
2893 for (x = 0; x < 8; x++) {
2901 * For RAW BW (YUV 4:0:0) images, data show up in 256 byte segments.
2902 * The segments represent 4 squares of 8x8 pixels as follows:
2904 * 0 1 ... 7 64 65 ... 71 ... 192 193 ... 199
2905 * 8 9 ... 15 72 73 ... 79 200 201 ... 207
2907 * 56 57 ... 63 120 121 ... 127 248 249 ... 255
2911 yuv400raw_to_yuv400p(struct ov511_frame *frame,
2912 unsigned char *pIn0, unsigned char *pOut0)
2915 unsigned char *pIn, *pOut, *pOutLine;
2920 for (y = 0; y < frame->rawheight - 1; y += 8) {
2922 for (x = 0; x < frame->rawwidth - 1; x += 8) {
2923 make_8x8(pIn, pOut, frame->rawwidth);
2927 pOutLine += 8 * frame->rawwidth;
2932 * For YUV 4:2:0 images, the data show up in 384 byte segments.
2933 * The first 64 bytes of each segment are U, the next 64 are V. The U and
2934 * V are arranged as follows:
2941 * U and V are shipped at half resolution (1 U,V sample -> one 2x2 block).
2943 * The next 256 bytes are full resolution Y data and represent 4 squares
2944 * of 8x8 pixels as follows:
2946 * 0 1 ... 7 64 65 ... 71 ... 192 193 ... 199
2947 * 8 9 ... 15 72 73 ... 79 200 201 ... 207
2949 * 56 57 ... 63 120 121 ... 127 ... 248 249 ... 255
2951 * Note that the U and V data in one segment represent a 16 x 16 pixel
2952 * area, but the Y data represent a 32 x 8 pixel area. If the width is not an
2953 * even multiple of 32, the extra 8x8 blocks within a 32x8 block belong to the
2954 * next horizontal stripe.
2956 * If dumppix module param is set, _parse_data just dumps the incoming segments,
2957 * verbatim, in order, into the frame. When used with vidcat -f ppm -s 640x480
2958 * this puts the data on the standard output and can be analyzed with the
2959 * parseppm.c utility I wrote. That's a much faster way for figuring out how
2960 * these data are scrambled.
2963 /* Converts from raw, uncompressed segments at pIn0 to a YUV420P frame at pOut0.
2965 * FIXME: Currently only handles width and height that are multiples of 16
2968 yuv420raw_to_yuv420p(struct ov511_frame *frame,
2969 unsigned char *pIn0, unsigned char *pOut0)
2972 unsigned char *pIn, *pOut, *pOutLine;
2973 const unsigned int a = frame->rawwidth * frame->rawheight;
2974 const unsigned int w = frame->rawwidth / 2;
2978 pOutLine = pOut0 + a;
2979 for (y = 0; y < frame->rawheight - 1; y += 16) {
2981 for (x = 0; x < frame->rawwidth - 1; x += 16) {
2982 make_8x8(pIn, pOut, w);
2983 make_8x8(pIn + 64, pOut + a/4, w);
2994 for (y = 0; y < frame->rawheight - 1; y += 8) {
2996 for (x = 0; x < frame->rawwidth - 1; x += 8) {
2997 make_8x8(pIn, pOut, frame->rawwidth);
3005 pOutLine += 8 * frame->rawwidth;
3009 /**********************************************************************
3013 **********************************************************************/
3015 /* Chooses a decompression module, locks it, and sets ov->decomp_ops
3016 * accordingly. Returns -ENXIO if decompressor is not available, otherwise
3017 * returns 0 if no other error.
3020 request_decompressor(struct usb_ov511 *ov)
3025 if (ov->decomp_ops) {
3026 err("ERROR: Decompressor already requested!");
3032 /* Try to get MMX, and fall back on no-MMX if necessary */
3033 if (ov->bclass == BCL_OV511) {
3034 if (ov511_mmx_decomp_ops) {
3035 PDEBUG(3, "Using OV511 MMX decompressor");
3036 ov->decomp_ops = ov511_mmx_decomp_ops;
3037 } else if (ov511_decomp_ops) {
3038 PDEBUG(3, "Using OV511 decompressor");
3039 ov->decomp_ops = ov511_decomp_ops;
3041 err("No decompressor available");
3043 } else if (ov->bclass == BCL_OV518) {
3044 if (ov518_mmx_decomp_ops) {
3045 PDEBUG(3, "Using OV518 MMX decompressor");
3046 ov->decomp_ops = ov518_mmx_decomp_ops;
3047 } else if (ov518_decomp_ops) {
3048 PDEBUG(3, "Using OV518 decompressor");
3049 ov->decomp_ops = ov518_decomp_ops;
3051 err("No decompressor available");
3054 err("Unknown bridge");
3057 if (!ov->decomp_ops)
3060 if (!ov->decomp_ops->owner) {
3061 ov->decomp_ops = NULL;
3065 if (!try_module_get(ov->decomp_ops->owner))
3076 /* Unlocks decompression module and nulls ov->decomp_ops. Safe to call even
3077 * if ov->decomp_ops is NULL.
3080 release_decompressor(struct usb_ov511 *ov)
3082 int released = 0; /* Did we actually do anything? */
3089 if (ov->decomp_ops) {
3090 module_put(ov->decomp_ops->owner);
3094 ov->decomp_ops = NULL;
3099 PDEBUG(3, "Decompressor released");
3103 decompress(struct usb_ov511 *ov, struct ov511_frame *frame,
3104 unsigned char *pIn0, unsigned char *pOut0)
3106 if (!ov->decomp_ops)
3107 if (request_decompressor(ov))
3110 PDEBUG(4, "Decompressing %d bytes", frame->bytes_recvd);
3112 if (frame->format == VIDEO_PALETTE_GREY
3113 && ov->decomp_ops->decomp_400) {
3114 int ret = ov->decomp_ops->decomp_400(
3120 frame->bytes_recvd);
3121 PDEBUG(4, "DEBUG: decomp_400 returned %d", ret);
3122 } else if (frame->format != VIDEO_PALETTE_GREY
3123 && ov->decomp_ops->decomp_420) {
3124 int ret = ov->decomp_ops->decomp_420(
3130 frame->bytes_recvd);
3131 PDEBUG(4, "DEBUG: decomp_420 returned %d", ret);
3133 err("Decompressor does not support this format");
3137 /**********************************************************************
3141 **********************************************************************/
3143 /* Fuses even and odd fields together, and doubles width.
3144 * INPUT: an odd field followed by an even field at pIn0, in YUV planar format
3145 * OUTPUT: a normal YUV planar image, with correct aspect ratio
3148 deinterlace(struct ov511_frame *frame, int rawformat,
3149 unsigned char *pIn0, unsigned char *pOut0)
3151 const int fieldheight = frame->rawheight / 2;
3152 const int fieldpix = fieldheight * frame->rawwidth;
3153 const int w = frame->width;
3155 unsigned char *pInEven, *pInOdd, *pOut;
3157 PDEBUG(5, "fieldheight=%d", fieldheight);
3159 if (frame->rawheight != frame->height) {
3160 err("invalid height");
3164 if ((frame->rawwidth * 2) != frame->width) {
3165 err("invalid width");
3171 pInEven = pInOdd + fieldpix;
3173 for (y = 0; y < fieldheight; y++) {
3174 for (x = 0; x < frame->rawwidth; x++) {
3176 *(pOut+1) = *pInEven++;
3177 *(pOut+w) = *pInOdd;
3178 *(pOut+w+1) = *pInOdd++;
3184 if (rawformat == RAWFMT_YUV420) {
3186 pInOdd = pIn0 + fieldpix * 2;
3187 pInEven = pInOdd + fieldpix / 4;
3188 for (y = 0; y < fieldheight / 2; y++) {
3189 for (x = 0; x < frame->rawwidth / 2; x++) {
3191 *(pOut+1) = *pInEven++;
3192 *(pOut+w/2) = *pInOdd;
3193 *(pOut+w/2+1) = *pInOdd++;
3199 pInOdd = pIn0 + fieldpix * 2 + fieldpix / 2;
3200 pInEven = pInOdd + fieldpix / 4;
3201 for (y = 0; y < fieldheight / 2; y++) {
3202 for (x = 0; x < frame->rawwidth / 2; x++) {
3204 *(pOut+1) = *pInEven++;
3205 *(pOut+w/2) = *pInOdd;
3206 *(pOut+w/2+1) = *pInOdd++;
3215 ov51x_postprocess_grey(struct usb_ov511 *ov, struct ov511_frame *frame)
3217 /* Deinterlace frame, if necessary */
3218 if (ov->sensor == SEN_SAA7111A && frame->rawheight >= 480) {
3219 if (frame->compressed)
3220 decompress(ov, frame, frame->rawdata,
3223 yuv400raw_to_yuv400p(frame, frame->rawdata,
3226 deinterlace(frame, RAWFMT_YUV400, frame->tempdata,
3229 if (frame->compressed)
3230 decompress(ov, frame, frame->rawdata,
3233 yuv400raw_to_yuv400p(frame, frame->rawdata,
3238 /* Process raw YUV420 data into standard YUV420P */
3240 ov51x_postprocess_yuv420(struct usb_ov511 *ov, struct ov511_frame *frame)
3242 /* Deinterlace frame, if necessary */
3243 if (ov->sensor == SEN_SAA7111A && frame->rawheight >= 480) {
3244 if (frame->compressed)
3245 decompress(ov, frame, frame->rawdata, frame->tempdata);
3247 yuv420raw_to_yuv420p(frame, frame->rawdata,
3250 deinterlace(frame, RAWFMT_YUV420, frame->tempdata,
3253 if (frame->compressed)
3254 decompress(ov, frame, frame->rawdata, frame->data);
3256 yuv420raw_to_yuv420p(frame, frame->rawdata,
3261 /* Post-processes the specified frame. This consists of:
3262 * 1. Decompress frame, if necessary
3263 * 2. Deinterlace frame and scale to proper size, if necessary
3264 * 3. Convert from YUV planar to destination format, if necessary
3265 * 4. Fix the RGB offset, if necessary
3268 ov51x_postprocess(struct usb_ov511 *ov, struct ov511_frame *frame)
3271 memset(frame->data, 0,
3272 MAX_DATA_SIZE(ov->maxwidth, ov->maxheight));
3273 PDEBUG(4, "Dumping %d bytes", frame->bytes_recvd);
3274 memcpy(frame->data, frame->rawdata, frame->bytes_recvd);
3276 switch (frame->format) {
3277 case VIDEO_PALETTE_GREY:
3278 ov51x_postprocess_grey(ov, frame);
3280 case VIDEO_PALETTE_YUV420:
3281 case VIDEO_PALETTE_YUV420P:
3282 ov51x_postprocess_yuv420(ov, frame);
3285 err("Cannot convert data to %s",
3286 symbolic(v4l1_plist, frame->format));
3291 /**********************************************************************
3293 * OV51x data transfer, IRQ handler
3295 **********************************************************************/
3298 ov511_move_data(struct usb_ov511 *ov, unsigned char *in, int n)
3301 int pnum = in[ov->packet_size - 1]; /* Get packet number */
3302 int max_raw = MAX_RAW_DATA_SIZE(ov->maxwidth, ov->maxheight);
3303 struct ov511_frame *frame = &ov->frame[ov->curframe];
3306 /* SOF/EOF packets have 1st to 8th bytes zeroed and the 9th
3307 * byte non-zero. The EOF packet has image width/height in the
3308 * 10th and 11th bytes. The 9th byte is given as follows:
3311 * 6: compression enabled
3312 * 5: 422/420/400 modes
3313 * 4: 422/420/400 modes
3315 * 2: snapshot button on
3321 info("ph(%3d): %2x %2x %2x %2x %2x %2x %2x %2x %2x %2x %2x %2x",
3322 pnum, in[0], in[1], in[2], in[3], in[4], in[5], in[6],
3323 in[7], in[8], in[9], in[10], in[11]);
3326 /* Check for SOF/EOF packet */
3327 if ((in[0] | in[1] | in[2] | in[3] | in[4] | in[5] | in[6] | in[7]) ||
3333 ts = (struct timeval *)(frame->data
3334 + MAX_FRAME_SIZE(ov->maxwidth, ov->maxheight));
3335 do_gettimeofday(ts);
3337 /* Get the actual frame size from the EOF header */
3338 frame->rawwidth = ((int)(in[9]) + 1) * 8;
3339 frame->rawheight = ((int)(in[10]) + 1) * 8;
3341 PDEBUG(4, "Frame end, frame=%d, pnum=%d, w=%d, h=%d, recvd=%d",
3342 ov->curframe, pnum, frame->rawwidth, frame->rawheight,
3343 frame->bytes_recvd);
3345 /* Validate the header data */
3346 RESTRICT_TO_RANGE(frame->rawwidth, ov->minwidth, ov->maxwidth);
3347 RESTRICT_TO_RANGE(frame->rawheight, ov->minheight,
3350 /* Don't allow byte count to exceed buffer size */
3351 RESTRICT_TO_RANGE(frame->bytes_recvd, 8, max_raw);
3353 if (frame->scanstate == STATE_LINES) {
3356 frame->grabstate = FRAME_DONE;
3357 wake_up_interruptible(&frame->wq);
3359 /* If next frame is ready or grabbing,
3361 nextf = (ov->curframe + 1) % OV511_NUMFRAMES;
3362 if (ov->frame[nextf].grabstate == FRAME_READY
3363 || ov->frame[nextf].grabstate == FRAME_GRABBING) {
3364 ov->curframe = nextf;
3365 ov->frame[nextf].scanstate = STATE_SCANNING;
3367 if (frame->grabstate == FRAME_DONE) {
3368 PDEBUG(4, "** Frame done **");
3370 PDEBUG(4, "Frame not ready? state = %d",
3371 ov->frame[nextf].grabstate);
3377 PDEBUG(5, "Frame done, but not scanning");
3379 /* Image corruption caused by misplaced frame->segment = 0
3380 * fixed by carlosf@conectiva.com.br
3384 PDEBUG(4, "Frame start, framenum = %d", ov->curframe);
3386 /* Check to see if it's a snapshot frame */
3387 /* FIXME?? Should the snapshot reset go here? Performance? */
3389 frame->snapshot = 1;
3390 PDEBUG(3, "snapshot detected");
3393 frame->scanstate = STATE_LINES;
3394 frame->bytes_recvd = 0;
3395 frame->compressed = in[8] & 0x40;
3399 /* Are we in a frame? */
3400 if (frame->scanstate != STATE_LINES) {
3401 PDEBUG(5, "Not in a frame; packet skipped");
3405 /* If frame start, skip header */
3406 if (frame->bytes_recvd == 0)
3411 num = n - offset - 1;
3413 /* Dump all data exactly as received */
3415 frame->bytes_recvd += n - 1;
3416 if (frame->bytes_recvd <= max_raw)
3417 memcpy(frame->rawdata + frame->bytes_recvd - (n - 1),
3420 PDEBUG(3, "Raw data buffer overrun!! (%d)",
3421 frame->bytes_recvd - max_raw);
3422 } else if (!frame->compressed && !remove_zeros) {
3423 frame->bytes_recvd += num;
3424 if (frame->bytes_recvd <= max_raw)
3425 memcpy(frame->rawdata + frame->bytes_recvd - num,
3428 PDEBUG(3, "Raw data buffer overrun!! (%d)",
3429 frame->bytes_recvd - max_raw);
3430 } else { /* Remove all-zero FIFO lines (aligned 32-byte blocks) */
3431 int b, read = 0, allzero, copied = 0;
3433 frame->bytes_recvd += 32 - offset; // Bytes out
3434 memcpy(frame->rawdata, in + offset, 32 - offset);
3438 while (read < n - 1) {
3440 for (b = 0; b < 32; b++) {
3450 if (frame->bytes_recvd + copied + 32 <= max_raw)
3452 memcpy(frame->rawdata
3453 + frame->bytes_recvd + copied,
3457 PDEBUG(3, "Raw data buffer overrun!!");
3463 frame->bytes_recvd += copied;
3468 ov518_move_data(struct usb_ov511 *ov, unsigned char *in, int n)
3470 int max_raw = MAX_RAW_DATA_SIZE(ov->maxwidth, ov->maxheight);
3471 struct ov511_frame *frame = &ov->frame[ov->curframe];
3474 /* Don't copy the packet number byte */
3475 if (ov->packet_numbering)
3478 /* A false positive here is likely, until OVT gives me
3479 * the definitive SOF/EOF format */
3480 if ((!(in[0] | in[1] | in[2] | in[3] | in[5])) && in[6]) {
3482 info("ph: %2x %2x %2x %2x %2x %2x %2x %2x", in[0],
3483 in[1], in[2], in[3], in[4], in[5], in[6], in[7]);
3486 if (frame->scanstate == STATE_LINES) {
3487 PDEBUG(4, "Detected frame end/start");
3489 } else { //scanstate == STATE_SCANNING
3491 PDEBUG(4, "Frame start, framenum = %d", ov->curframe);
3499 ts = (struct timeval *)(frame->data
3500 + MAX_FRAME_SIZE(ov->maxwidth, ov->maxheight));
3501 do_gettimeofday(ts);
3503 PDEBUG(4, "Frame end, curframe = %d, hw=%d, vw=%d, recvd=%d",
3505 (int)(in[9]), (int)(in[10]), frame->bytes_recvd);
3507 // FIXME: Since we don't know the header formats yet,
3508 // there is no way to know what the actual image size is
3509 frame->rawwidth = frame->width;
3510 frame->rawheight = frame->height;
3512 /* Validate the header data */
3513 RESTRICT_TO_RANGE(frame->rawwidth, ov->minwidth, ov->maxwidth);
3514 RESTRICT_TO_RANGE(frame->rawheight, ov->minheight, ov->maxheight);
3516 /* Don't allow byte count to exceed buffer size */
3517 RESTRICT_TO_RANGE(frame->bytes_recvd, 8, max_raw);
3519 if (frame->scanstate == STATE_LINES) {
3522 frame->grabstate = FRAME_DONE;
3523 wake_up_interruptible(&frame->wq);
3525 /* If next frame is ready or grabbing,
3527 nextf = (ov->curframe + 1) % OV511_NUMFRAMES;
3528 if (ov->frame[nextf].grabstate == FRAME_READY
3529 || ov->frame[nextf].grabstate == FRAME_GRABBING) {
3530 ov->curframe = nextf;
3531 ov->frame[nextf].scanstate = STATE_SCANNING;
3532 frame = &ov->frame[nextf];
3534 if (frame->grabstate == FRAME_DONE) {
3535 PDEBUG(4, "** Frame done **");
3537 PDEBUG(4, "Frame not ready? state = %d",
3538 ov->frame[nextf].grabstate);
3542 PDEBUG(4, "SOF dropped (no active frame)");
3543 return; /* Nowhere to store this frame */
3547 PDEBUG(4, "Starting capture on frame %d", frame->framenum);
3549 // Snapshot not reverse-engineered yet.
3551 /* Check to see if it's a snapshot frame */
3552 /* FIXME?? Should the snapshot reset go here? Performance? */
3554 frame->snapshot = 1;
3555 PDEBUG(3, "snapshot detected");
3558 frame->scanstate = STATE_LINES;
3559 frame->bytes_recvd = 0;
3560 frame->compressed = 1;
3563 /* Are we in a frame? */
3564 if (frame->scanstate != STATE_LINES) {
3565 PDEBUG(4, "scanstate: no SOF yet");
3569 /* Dump all data exactly as received */
3571 frame->bytes_recvd += n;
3572 if (frame->bytes_recvd <= max_raw)
3573 memcpy(frame->rawdata + frame->bytes_recvd - n, in, n);
3575 PDEBUG(3, "Raw data buffer overrun!! (%d)",
3576 frame->bytes_recvd - max_raw);
3578 /* All incoming data are divided into 8-byte segments. If the
3579 * segment contains all zero bytes, it must be skipped. These
3580 * zero-segments allow the OV518 to mainain a constant data rate
3581 * regardless of the effectiveness of the compression. Segments
3582 * are aligned relative to the beginning of each isochronous
3583 * packet. The first segment in each image is a header (the
3584 * decompressor skips it later).
3587 int b, read = 0, allzero, copied = 0;
3591 for (b = 0; b < 8; b++) {
3601 if (frame->bytes_recvd + copied + 8 <= max_raw)
3603 memcpy(frame->rawdata
3604 + frame->bytes_recvd + copied,
3608 PDEBUG(3, "Raw data buffer overrun!!");
3613 frame->bytes_recvd += copied;
3618 ov51x_isoc_irq(struct urb *urb, struct pt_regs *regs)
3621 struct usb_ov511 *ov;
3622 struct ov511_sbuf *sbuf;
3624 if (!urb->context) {
3625 PDEBUG(4, "no context");
3629 sbuf = urb->context;
3632 if (!ov || !ov->dev || !ov->user) {
3633 PDEBUG(4, "no device, or not open");
3637 if (!ov->streaming) {
3638 PDEBUG(4, "hmmm... not streaming, but got interrupt");
3642 if (urb->status == -ENOENT || urb->status == -ECONNRESET) {
3643 PDEBUG(4, "URB unlinked");
3647 if (urb->status != -EINPROGRESS && urb->status != 0) {
3648 err("ERROR: urb->status=%d: %s", urb->status,
3649 symbolic(urb_errlist, urb->status));
3652 /* Copy the data received into our frame buffer */
3653 PDEBUG(5, "sbuf[%d]: Moving %d packets", sbuf->n,
3654 urb->number_of_packets);
3655 for (i = 0; i < urb->number_of_packets; i++) {
3656 /* Warning: Don't call *_move_data() if no frame active! */
3657 if (ov->curframe >= 0) {
3658 int n = urb->iso_frame_desc[i].actual_length;
3659 int st = urb->iso_frame_desc[i].status;
3660 unsigned char *cdata;
3662 urb->iso_frame_desc[i].actual_length = 0;
3663 urb->iso_frame_desc[i].status = 0;
3665 cdata = urb->transfer_buffer
3666 + urb->iso_frame_desc[i].offset;
3669 PDEBUG(4, "Zero-length packet");
3674 PDEBUG(2, "data error: [%d] len=%d, status=%d",
3677 if (ov->bclass == BCL_OV511)
3678 ov511_move_data(ov, cdata, n);
3679 else if (ov->bclass == BCL_OV518)
3680 ov518_move_data(ov, cdata, n);
3682 err("Unknown bridge device (%d)", ov->bridge);
3684 } else if (waitqueue_active(&ov->wq)) {
3685 wake_up_interruptible(&ov->wq);
3689 /* Resubmit this URB */
3691 if ((i = usb_submit_urb(urb, GFP_ATOMIC)) != 0)
3692 err("usb_submit_urb() ret %d", i);
3697 /****************************************************************************
3699 * Stream initialization and termination
3701 ***************************************************************************/
3704 ov51x_init_isoc(struct usb_ov511 *ov)
3707 int fx, err, n, size;
3709 PDEBUG(3, "*** Initializing capture ***");
3713 if (ov->bridge == BRG_OV511) {
3718 else if (cams == 3 || cams == 4)
3721 err("\"cams\" parameter too high!");
3724 } else if (ov->bridge == BRG_OV511PLUS) {
3729 else if (cams == 3 || cams == 4)
3731 else if (cams >= 5 && cams <= 8)
3733 else if (cams >= 9 && cams <= 31)
3736 err("\"cams\" parameter too high!");
3739 } else if (ov->bclass == BCL_OV518) {
3744 else if (cams == 3 || cams == 4)
3746 else if (cams >= 5 && cams <= 8)
3749 err("\"cams\" parameter too high!");
3753 err("invalid bridge type");
3757 // FIXME: OV518 is hardcoded to 15 FPS (alternate 5) for now
3758 if (ov->bclass == BCL_OV518) {
3759 if (packetsize == -1) {
3760 ov518_set_packet_size(ov, 640);
3762 info("Forcing packet size to %d", packetsize);
3763 ov518_set_packet_size(ov, packetsize);
3766 if (packetsize == -1) {
3767 ov511_set_packet_size(ov, size);
3769 info("Forcing packet size to %d", packetsize);
3770 ov511_set_packet_size(ov, packetsize);
3774 for (n = 0; n < OV511_NUMSBUF; n++) {
3775 urb = usb_alloc_urb(FRAMES_PER_DESC, GFP_KERNEL);
3777 err("init isoc: usb_alloc_urb ret. NULL");
3780 ov->sbuf[n].urb = urb;
3782 urb->context = &ov->sbuf[n];
3783 urb->pipe = usb_rcvisocpipe(ov->dev, OV511_ENDPOINT_ADDRESS);
3784 urb->transfer_flags = URB_ISO_ASAP;
3785 urb->transfer_buffer = ov->sbuf[n].data;
3786 urb->complete = ov51x_isoc_irq;
3787 urb->number_of_packets = FRAMES_PER_DESC;
3788 urb->transfer_buffer_length = ov->packet_size * FRAMES_PER_DESC;
3790 for (fx = 0; fx < FRAMES_PER_DESC; fx++) {
3791 urb->iso_frame_desc[fx].offset = ov->packet_size * fx;
3792 urb->iso_frame_desc[fx].length = ov->packet_size;
3798 for (n = 0; n < OV511_NUMSBUF; n++) {
3799 ov->sbuf[n].urb->dev = ov->dev;
3800 err = usb_submit_urb(ov->sbuf[n].urb, GFP_KERNEL);
3802 err("init isoc: usb_submit_urb(%d) ret %d", n, err);
3811 ov51x_unlink_isoc(struct usb_ov511 *ov)
3815 /* Unschedule all of the iso td's */
3816 for (n = OV511_NUMSBUF - 1; n >= 0; n--) {
3817 if (ov->sbuf[n].urb) {
3818 usb_kill_urb(ov->sbuf[n].urb);
3819 usb_free_urb(ov->sbuf[n].urb);
3820 ov->sbuf[n].urb = NULL;
3826 ov51x_stop_isoc(struct usb_ov511 *ov)
3828 if (!ov->streaming || !ov->dev)
3831 PDEBUG(3, "*** Stopping capture ***");
3833 if (ov->bclass == BCL_OV518)
3834 ov518_set_packet_size(ov, 0);
3836 ov511_set_packet_size(ov, 0);
3840 ov51x_unlink_isoc(ov);
3844 ov51x_new_frame(struct usb_ov511 *ov, int framenum)
3846 struct ov511_frame *frame;
3849 PDEBUG(4, "ov->curframe = %d, framenum = %d", ov->curframe, framenum);
3854 /* If we're not grabbing a frame right now and the other frame is */
3855 /* ready to be grabbed into, then use it instead */
3856 if (ov->curframe == -1) {
3857 newnum = (framenum - 1 + OV511_NUMFRAMES) % OV511_NUMFRAMES;
3858 if (ov->frame[newnum].grabstate == FRAME_READY)
3863 frame = &ov->frame[framenum];
3865 PDEBUG(4, "framenum = %d, width = %d, height = %d", framenum,
3866 frame->width, frame->height);
3868 frame->grabstate = FRAME_GRABBING;
3869 frame->scanstate = STATE_SCANNING;
3870 frame->snapshot = 0;
3872 ov->curframe = framenum;
3874 /* Make sure it's not too big */
3875 if (frame->width > ov->maxwidth)
3876 frame->width = ov->maxwidth;
3878 frame->width &= ~7L; /* Multiple of 8 */
3880 if (frame->height > ov->maxheight)
3881 frame->height = ov->maxheight;
3883 frame->height &= ~3L; /* Multiple of 4 */
3888 /****************************************************************************
3892 ***************************************************************************/
3895 * - You must acquire buf_lock before entering this function.
3896 * - Because this code will free any non-null pointer, you must be sure to null
3897 * them if you explicitly free them somewhere else!
3900 ov51x_do_dealloc(struct usb_ov511 *ov)
3903 PDEBUG(4, "entered");
3906 rvfree(ov->fbuf, OV511_NUMFRAMES
3907 * MAX_DATA_SIZE(ov->maxwidth, ov->maxheight));
3917 vfree(ov->tempfbuf);
3918 ov->tempfbuf = NULL;
3921 for (i = 0; i < OV511_NUMSBUF; i++) {
3922 if (ov->sbuf[i].data) {
3923 kfree(ov->sbuf[i].data);
3924 ov->sbuf[i].data = NULL;
3928 for (i = 0; i < OV511_NUMFRAMES; i++) {
3929 ov->frame[i].data = NULL;
3930 ov->frame[i].rawdata = NULL;
3931 ov->frame[i].tempdata = NULL;
3932 if (ov->frame[i].compbuf) {
3933 free_page((unsigned long) ov->frame[i].compbuf);
3934 ov->frame[i].compbuf = NULL;
3938 PDEBUG(4, "buffer memory deallocated");
3939 ov->buf_state = BUF_NOT_ALLOCATED;
3940 PDEBUG(4, "leaving");
3944 ov51x_alloc(struct usb_ov511 *ov)
3947 const int w = ov->maxwidth;
3948 const int h = ov->maxheight;
3949 const int data_bufsize = OV511_NUMFRAMES * MAX_DATA_SIZE(w, h);
3950 const int raw_bufsize = OV511_NUMFRAMES * MAX_RAW_DATA_SIZE(w, h);
3952 PDEBUG(4, "entered");
3953 down(&ov->buf_lock);
3955 if (ov->buf_state == BUF_ALLOCATED)
3958 ov->fbuf = rvmalloc(data_bufsize);
3962 ov->rawfbuf = vmalloc(raw_bufsize);
3966 memset(ov->rawfbuf, 0, raw_bufsize);
3968 ov->tempfbuf = vmalloc(raw_bufsize);
3972 memset(ov->tempfbuf, 0, raw_bufsize);
3974 for (i = 0; i < OV511_NUMSBUF; i++) {
3975 ov->sbuf[i].data = kmalloc(FRAMES_PER_DESC *
3976 MAX_FRAME_SIZE_PER_DESC, GFP_KERNEL);
3977 if (!ov->sbuf[i].data)
3980 PDEBUG(4, "sbuf[%d] @ %p", i, ov->sbuf[i].data);
3983 for (i = 0; i < OV511_NUMFRAMES; i++) {
3984 ov->frame[i].data = ov->fbuf + i * MAX_DATA_SIZE(w, h);
3985 ov->frame[i].rawdata = ov->rawfbuf
3986 + i * MAX_RAW_DATA_SIZE(w, h);
3987 ov->frame[i].tempdata = ov->tempfbuf
3988 + i * MAX_RAW_DATA_SIZE(w, h);
3990 ov->frame[i].compbuf =
3991 (unsigned char *) __get_free_page(GFP_KERNEL);
3992 if (!ov->frame[i].compbuf)
3995 PDEBUG(4, "frame[%d] @ %p", i, ov->frame[i].data);
3998 ov->buf_state = BUF_ALLOCATED;
4001 PDEBUG(4, "leaving");
4004 ov51x_do_dealloc(ov);
4006 PDEBUG(4, "errored");
4011 ov51x_dealloc(struct usb_ov511 *ov)
4013 PDEBUG(4, "entered");
4014 down(&ov->buf_lock);
4015 ov51x_do_dealloc(ov);
4017 PDEBUG(4, "leaving");
4020 /****************************************************************************
4024 ***************************************************************************/
4027 ov51x_v4l1_open(struct inode *inode, struct file *file)
4029 struct video_device *vdev = video_devdata(file);
4030 struct usb_ov511 *ov = video_get_drvdata(vdev);
4033 PDEBUG(4, "opening");
4043 /* In case app doesn't set them... */
4044 err = ov51x_set_default_params(ov);
4048 /* Make sure frames are reset */
4049 for (i = 0; i < OV511_NUMFRAMES; i++) {
4050 ov->frame[i].grabstate = FRAME_UNUSED;
4051 ov->frame[i].bytes_read = 0;
4054 /* If compression is on, make sure now that a
4055 * decompressor can be loaded */
4056 if (ov->compress && !ov->decomp_ops) {
4057 err = request_decompressor(ov);
4058 if (err && !dumppix)
4062 err = ov51x_alloc(ov);
4066 err = ov51x_init_isoc(ov);
4073 file->private_data = vdev;
4075 if (ov->led_policy == LED_AUTO)
4076 ov51x_led_control(ov, 1);
4084 ov51x_v4l1_close(struct inode *inode, struct file *file)
4086 struct video_device *vdev = file->private_data;
4087 struct usb_ov511 *ov = video_get_drvdata(vdev);
4089 PDEBUG(4, "ov511_close");
4094 ov51x_stop_isoc(ov);
4096 release_decompressor(ov);
4098 if (ov->led_policy == LED_AUTO)
4099 ov51x_led_control(ov, 0);
4106 /* Device unplugged while open. Only a minimum of unregistration is done
4107 * here; the disconnect callback already did the rest. */
4109 down(&ov->cbuf_lock);
4119 file->private_data = NULL;
4123 /* Do not call this function directly! */
4125 ov51x_v4l1_ioctl_internal(struct inode *inode, struct file *file,
4126 unsigned int cmd, void *arg)
4128 struct video_device *vdev = file->private_data;
4129 struct usb_ov511 *ov = video_get_drvdata(vdev);
4130 PDEBUG(5, "IOCtl: 0x%X", cmd);
4138 struct video_capability *b = arg;
4140 PDEBUG(4, "VIDIOCGCAP");
4142 memset(b, 0, sizeof(struct video_capability));
4143 sprintf(b->name, "%s USB Camera",
4144 symbolic(brglist, ov->bridge));
4145 b->type = VID_TYPE_CAPTURE | VID_TYPE_SUBCAPTURE;
4146 b->channels = ov->num_inputs;
4148 b->maxwidth = ov->maxwidth;
4149 b->maxheight = ov->maxheight;
4150 b->minwidth = ov->minwidth;
4151 b->minheight = ov->minheight;
4157 struct video_channel *v = arg;
4159 PDEBUG(4, "VIDIOCGCHAN");
4161 if ((unsigned)(v->channel) >= ov->num_inputs) {
4162 err("Invalid channel (%d)", v->channel);
4167 v->type = VIDEO_TYPE_CAMERA;
4169 // v->flags |= (ov->has_decoder) ? VIDEO_VC_NORM : 0;
4171 decoder_get_input_name(ov, v->channel, v->name);
4177 struct video_channel *v = arg;
4180 PDEBUG(4, "VIDIOCSCHAN");
4182 /* Make sure it's not a camera */
4183 if (!ov->has_decoder) {
4184 if (v->channel == 0)
4190 if (v->norm != VIDEO_MODE_PAL &&
4191 v->norm != VIDEO_MODE_NTSC &&
4192 v->norm != VIDEO_MODE_SECAM &&
4193 v->norm != VIDEO_MODE_AUTO) {
4194 err("Invalid norm (%d)", v->norm);
4198 if ((unsigned)(v->channel) >= ov->num_inputs) {
4199 err("Invalid channel (%d)", v->channel);
4203 err = decoder_set_input(ov, v->channel);
4207 err = decoder_set_norm(ov, v->norm);
4215 struct video_picture *p = arg;
4217 PDEBUG(4, "VIDIOCGPICT");
4219 memset(p, 0, sizeof(struct video_picture));
4220 if (sensor_get_picture(ov, p))
4223 /* Can we get these from frame[0]? -claudio? */
4224 p->depth = ov->frame[0].depth;
4225 p->palette = ov->frame[0].format;
4231 struct video_picture *p = arg;
4234 PDEBUG(4, "VIDIOCSPICT");
4236 if (!get_depth(p->palette))
4239 if (sensor_set_picture(ov, p))
4242 if (force_palette && p->palette != force_palette) {
4243 info("Palette rejected (%s)",
4244 symbolic(v4l1_plist, p->palette));
4248 // FIXME: Format should be independent of frames
4249 if (p->palette != ov->frame[0].format) {
4250 PDEBUG(4, "Detected format change");
4252 rc = ov51x_wait_frames_inactive(ov);
4256 mode_init_regs(ov, ov->frame[0].width,
4257 ov->frame[0].height, p->palette, ov->sub_flag);
4260 PDEBUG(4, "Setting depth=%d, palette=%s",
4261 p->depth, symbolic(v4l1_plist, p->palette));
4263 for (i = 0; i < OV511_NUMFRAMES; i++) {
4264 ov->frame[i].depth = p->depth;
4265 ov->frame[i].format = p->palette;
4270 case VIDIOCGCAPTURE:
4274 PDEBUG(4, "VIDIOCGCAPTURE");
4279 case VIDIOCSCAPTURE:
4281 struct video_capture *vc = arg;
4283 PDEBUG(4, "VIDIOCSCAPTURE");
4299 if (vc->height == 0)
4304 ov->subw = vc->width;
4305 ov->subh = vc->height;
4311 struct video_window *vw = arg;
4314 PDEBUG(4, "VIDIOCSWIN: %dx%d", vw->width, vw->height);
4321 if (vw->height != ov->maxheight)
4323 if (vw->width != ov->maxwidth)
4327 rc = ov51x_wait_frames_inactive(ov);
4331 rc = mode_init_regs(ov, vw->width, vw->height,
4332 ov->frame[0].format, ov->sub_flag);
4336 for (i = 0; i < OV511_NUMFRAMES; i++) {
4337 ov->frame[i].width = vw->width;
4338 ov->frame[i].height = vw->height;
4345 struct video_window *vw = arg;
4347 memset(vw, 0, sizeof(struct video_window));
4348 vw->x = 0; /* FIXME */
4350 vw->width = ov->frame[0].width;
4351 vw->height = ov->frame[0].height;
4354 PDEBUG(4, "VIDIOCGWIN: %dx%d", vw->width, vw->height);
4360 struct video_mbuf *vm = arg;
4363 PDEBUG(4, "VIDIOCGMBUF");
4365 memset(vm, 0, sizeof(struct video_mbuf));
4366 vm->size = OV511_NUMFRAMES
4367 * MAX_DATA_SIZE(ov->maxwidth, ov->maxheight);
4368 vm->frames = OV511_NUMFRAMES;
4371 for (i = 1; i < OV511_NUMFRAMES; i++) {
4372 vm->offsets[i] = vm->offsets[i-1]
4373 + MAX_DATA_SIZE(ov->maxwidth, ov->maxheight);
4378 case VIDIOCMCAPTURE:
4380 struct video_mmap *vm = arg;
4382 unsigned int f = vm->frame;
4384 PDEBUG(4, "VIDIOCMCAPTURE: frame: %d, %dx%d, %s", f, vm->width,
4385 vm->height, symbolic(v4l1_plist, vm->format));
4387 depth = get_depth(vm->format);
4389 PDEBUG(2, "VIDIOCMCAPTURE: invalid format (%s)",
4390 symbolic(v4l1_plist, vm->format));
4394 if (f >= OV511_NUMFRAMES) {
4395 err("VIDIOCMCAPTURE: invalid frame (%d)", f);
4399 if (vm->width > ov->maxwidth
4400 || vm->height > ov->maxheight) {
4401 err("VIDIOCMCAPTURE: requested dimensions too big");
4405 if (ov->frame[f].grabstate == FRAME_GRABBING) {
4406 PDEBUG(4, "VIDIOCMCAPTURE: already grabbing");
4410 if (force_palette && (vm->format != force_palette)) {
4411 PDEBUG(2, "palette rejected (%s)",
4412 symbolic(v4l1_plist, vm->format));
4416 if ((ov->frame[f].width != vm->width) ||
4417 (ov->frame[f].height != vm->height) ||
4418 (ov->frame[f].format != vm->format) ||
4419 (ov->frame[f].sub_flag != ov->sub_flag) ||
4420 (ov->frame[f].depth != depth)) {
4421 PDEBUG(4, "VIDIOCMCAPTURE: change in image parameters");
4423 rc = ov51x_wait_frames_inactive(ov);
4427 rc = mode_init_regs(ov, vm->width, vm->height,
4428 vm->format, ov->sub_flag);
4431 PDEBUG(1, "Got error while initializing regs ");
4435 ov->frame[f].width = vm->width;
4436 ov->frame[f].height = vm->height;
4437 ov->frame[f].format = vm->format;
4438 ov->frame[f].sub_flag = ov->sub_flag;
4439 ov->frame[f].depth = depth;
4442 /* Mark it as ready */
4443 ov->frame[f].grabstate = FRAME_READY;
4445 PDEBUG(4, "VIDIOCMCAPTURE: renewing frame %d", f);
4447 return ov51x_new_frame(ov, f);
4451 unsigned int fnum = *((unsigned int *) arg);
4452 struct ov511_frame *frame;
4455 if (fnum >= OV511_NUMFRAMES) {
4456 err("VIDIOCSYNC: invalid frame (%d)", fnum);
4460 frame = &ov->frame[fnum];
4462 PDEBUG(4, "syncing to frame %d, grabstate = %d", fnum,
4465 switch (frame->grabstate) {
4469 case FRAME_GRABBING:
4475 rc = wait_event_interruptible(frame->wq,
4476 (frame->grabstate == FRAME_DONE)
4477 || (frame->grabstate == FRAME_ERROR));
4482 if (frame->grabstate == FRAME_ERROR) {
4483 if ((rc = ov51x_new_frame(ov, fnum)) < 0)
4489 if (ov->snap_enabled && !frame->snapshot) {
4490 if ((rc = ov51x_new_frame(ov, fnum)) < 0)
4495 frame->grabstate = FRAME_UNUSED;
4497 /* Reset the hardware snapshot button */
4498 /* FIXME - Is this the best place for this? */
4499 if ((ov->snap_enabled) && (frame->snapshot)) {
4500 frame->snapshot = 0;
4501 ov51x_clear_snapshot(ov);
4504 /* Decompression, format conversion, etc... */
4505 ov51x_postprocess(ov, frame);
4514 struct video_buffer *vb = arg;
4516 PDEBUG(4, "VIDIOCGFBUF");
4518 memset(vb, 0, sizeof(struct video_buffer));
4524 struct video_unit *vu = arg;
4526 PDEBUG(4, "VIDIOCGUNIT");
4528 memset(vu, 0, sizeof(struct video_unit));
4530 vu->video = ov->vdev->minor;
4531 vu->vbi = VIDEO_NO_UNIT;
4532 vu->radio = VIDEO_NO_UNIT;
4533 vu->audio = VIDEO_NO_UNIT;
4534 vu->teletext = VIDEO_NO_UNIT;
4540 struct ov511_i2c_struct *w = arg;
4542 return i2c_w_slave(ov, w->slave, w->reg, w->value, w->mask);
4546 struct ov511_i2c_struct *r = arg;
4549 rc = i2c_r_slave(ov, r->slave, r->reg);
4557 PDEBUG(3, "Unsupported IOCtl: 0x%X", cmd);
4558 return -ENOIOCTLCMD;
4565 ov51x_v4l1_ioctl(struct inode *inode, struct file *file,
4566 unsigned int cmd, unsigned long arg)
4568 struct video_device *vdev = file->private_data;
4569 struct usb_ov511 *ov = video_get_drvdata(vdev);
4572 if (down_interruptible(&ov->lock))
4575 rc = video_usercopy(inode, file, cmd, arg, ov51x_v4l1_ioctl_internal);
4582 ov51x_v4l1_read(struct file *file, char __user *buf, size_t cnt, loff_t *ppos)
4584 struct video_device *vdev = file->private_data;
4585 int noblock = file->f_flags&O_NONBLOCK;
4586 unsigned long count = cnt;
4587 struct usb_ov511 *ov = video_get_drvdata(vdev);
4588 int i, rc = 0, frmx = -1;
4589 struct ov511_frame *frame;
4591 if (down_interruptible(&ov->lock))
4594 PDEBUG(4, "%ld bytes, noblock=%d", count, noblock);
4596 if (!vdev || !buf) {
4606 // FIXME: Only supports two frames
4607 /* See if a frame is completed, then use it. */
4608 if (ov->frame[0].grabstate >= FRAME_DONE) /* _DONE or _ERROR */
4610 else if (ov->frame[1].grabstate >= FRAME_DONE)/* _DONE or _ERROR */
4613 /* If nonblocking we return immediately */
4614 if (noblock && (frmx == -1)) {
4619 /* If no FRAME_DONE, look for a FRAME_GRABBING state. */
4620 /* See if a frame is in process (grabbing), then use it. */
4622 if (ov->frame[0].grabstate == FRAME_GRABBING)
4624 else if (ov->frame[1].grabstate == FRAME_GRABBING)
4628 /* If no frame is active, start one. */
4630 if ((rc = ov51x_new_frame(ov, frmx = 0))) {
4631 err("read: ov51x_new_frame error");
4636 frame = &ov->frame[frmx];
4644 /* Wait while we're grabbing the image */
4645 PDEBUG(4, "Waiting image grabbing");
4646 rc = wait_event_interruptible(frame->wq,
4647 (frame->grabstate == FRAME_DONE)
4648 || (frame->grabstate == FRAME_ERROR));
4653 PDEBUG(4, "Got image, frame->grabstate = %d", frame->grabstate);
4654 PDEBUG(4, "bytes_recvd = %d", frame->bytes_recvd);
4656 if (frame->grabstate == FRAME_ERROR) {
4657 frame->bytes_read = 0;
4658 err("** ick! ** Errored frame %d", ov->curframe);
4659 if (ov51x_new_frame(ov, frmx)) {
4660 err("read: ov51x_new_frame error");
4667 /* Repeat until we get a snapshot frame */
4668 if (ov->snap_enabled)
4669 PDEBUG(4, "Waiting snapshot frame");
4670 if (ov->snap_enabled && !frame->snapshot) {
4671 frame->bytes_read = 0;
4672 if ((rc = ov51x_new_frame(ov, frmx))) {
4673 err("read: ov51x_new_frame error");
4679 /* Clear the snapshot */
4680 if (ov->snap_enabled && frame->snapshot) {
4681 frame->snapshot = 0;
4682 ov51x_clear_snapshot(ov);
4685 /* Decompression, format conversion, etc... */
4686 ov51x_postprocess(ov, frame);
4688 PDEBUG(4, "frmx=%d, bytes_read=%ld, length=%ld", frmx,
4690 get_frame_length(frame));
4692 /* copy bytes to user space; we allow for partials reads */
4693 // if ((count + frame->bytes_read)
4694 // > get_frame_length((struct ov511_frame *)frame))
4695 // count = frame->scanlength - frame->bytes_read;
4697 /* FIXME - count hardwired to be one frame... */
4698 count = get_frame_length(frame);
4700 PDEBUG(4, "Copy to user space: %ld bytes", count);
4701 if ((i = copy_to_user(buf, frame->data + frame->bytes_read, count))) {
4702 PDEBUG(4, "Copy failed! %d bytes not copied", i);
4707 frame->bytes_read += count;
4708 PDEBUG(4, "{copy} count used=%ld, new bytes_read=%ld",
4709 count, frame->bytes_read);
4711 /* If all data have been read... */
4712 if (frame->bytes_read
4713 >= get_frame_length(frame)) {
4714 frame->bytes_read = 0;
4716 // FIXME: Only supports two frames
4717 /* Mark it as available to be used again. */
4718 ov->frame[frmx].grabstate = FRAME_UNUSED;
4719 if ((rc = ov51x_new_frame(ov, !frmx))) {
4720 err("ov51x_new_frame returned error");
4725 PDEBUG(4, "read finished, returning %ld (sweet)", count);
4736 ov51x_v4l1_mmap(struct file *file, struct vm_area_struct *vma)
4738 struct video_device *vdev = file->private_data;
4739 unsigned long start = vma->vm_start;
4740 unsigned long size = vma->vm_end - vma->vm_start;
4741 struct usb_ov511 *ov = video_get_drvdata(vdev);
4742 unsigned long page, pos;
4744 if (ov->dev == NULL)
4747 PDEBUG(4, "mmap: %ld (%lX) bytes", size, size);
4749 if (size > (((OV511_NUMFRAMES
4750 * MAX_DATA_SIZE(ov->maxwidth, ov->maxheight)
4751 + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1))))
4754 if (down_interruptible(&ov->lock))
4757 pos = (unsigned long)ov->fbuf;
4759 page = vmalloc_to_pfn((void *)pos);
4760 if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) {
4766 if (size > PAGE_SIZE)
4776 static struct file_operations ov511_fops = {
4777 .owner = THIS_MODULE,
4778 .open = ov51x_v4l1_open,
4779 .release = ov51x_v4l1_close,
4780 .read = ov51x_v4l1_read,
4781 .mmap = ov51x_v4l1_mmap,
4782 .ioctl = ov51x_v4l1_ioctl,
4783 .llseek = no_llseek,
4786 static struct video_device vdev_template = {
4787 .owner = THIS_MODULE,
4788 .name = "OV511 USB Camera",
4789 .type = VID_TYPE_CAPTURE,
4790 .hardware = VID_HARDWARE_OV511,
4791 .fops = &ov511_fops,
4792 .release = video_device_release,
4796 /****************************************************************************
4798 * OV511 and sensor configuration
4800 ***************************************************************************/
4802 /* This initializes the OV7610, OV7620, or OV76BE sensor. The OV76BE uses
4803 * the same register settings as the OV7610, since they are very similar.
4806 ov7xx0_configure(struct usb_ov511 *ov)
4811 /* Lawrence Glaister <lg@jfm.bc.ca> reports:
4813 * Register 0x0f in the 7610 has the following effects:
4815 * 0x85 (AEC method 1): Best overall, good contrast range
4816 * 0x45 (AEC method 2): Very overexposed
4817 * 0xa5 (spec sheet default): Ok, but the black level is
4818 * shifted resulting in loss of contrast
4819 * 0x05 (old driver setting): very overexposed, too much
4822 static struct ov511_regvals aRegvalsNorm7610[] = {
4823 { OV511_I2C_BUS, 0x10, 0xff },
4824 { OV511_I2C_BUS, 0x16, 0x06 },
4825 { OV511_I2C_BUS, 0x28, 0x24 },
4826 { OV511_I2C_BUS, 0x2b, 0xac },
4827 { OV511_I2C_BUS, 0x12, 0x00 },
4828 { OV511_I2C_BUS, 0x38, 0x81 },
4829 { OV511_I2C_BUS, 0x28, 0x24 }, /* 0c */
4830 { OV511_I2C_BUS, 0x0f, 0x85 }, /* lg's setting */
4831 { OV511_I2C_BUS, 0x15, 0x01 },
4832 { OV511_I2C_BUS, 0x20, 0x1c },
4833 { OV511_I2C_BUS, 0x23, 0x2a },
4834 { OV511_I2C_BUS, 0x24, 0x10 },
4835 { OV511_I2C_BUS, 0x25, 0x8a },
4836 { OV511_I2C_BUS, 0x26, 0xa2 },
4837 { OV511_I2C_BUS, 0x27, 0xc2 },
4838 { OV511_I2C_BUS, 0x2a, 0x04 },
4839 { OV511_I2C_BUS, 0x2c, 0xfe },
4840 { OV511_I2C_BUS, 0x2d, 0x93 },
4841 { OV511_I2C_BUS, 0x30, 0x71 },
4842 { OV511_I2C_BUS, 0x31, 0x60 },
4843 { OV511_I2C_BUS, 0x32, 0x26 },
4844 { OV511_I2C_BUS, 0x33, 0x20 },
4845 { OV511_I2C_BUS, 0x34, 0x48 },
4846 { OV511_I2C_BUS, 0x12, 0x24 },
4847 { OV511_I2C_BUS, 0x11, 0x01 },
4848 { OV511_I2C_BUS, 0x0c, 0x24 },
4849 { OV511_I2C_BUS, 0x0d, 0x24 },
4850 { OV511_DONE_BUS, 0x0, 0x00 },
4853 static struct ov511_regvals aRegvalsNorm7620[] = {
4854 { OV511_I2C_BUS, 0x00, 0x00 },
4855 { OV511_I2C_BUS, 0x01, 0x80 },
4856 { OV511_I2C_BUS, 0x02, 0x80 },
4857 { OV511_I2C_BUS, 0x03, 0xc0 },
4858 { OV511_I2C_BUS, 0x06, 0x60 },
4859 { OV511_I2C_BUS, 0x07, 0x00 },
4860 { OV511_I2C_BUS, 0x0c, 0x24 },
4861 { OV511_I2C_BUS, 0x0c, 0x24 },
4862 { OV511_I2C_BUS, 0x0d, 0x24 },
4863 { OV511_I2C_BUS, 0x11, 0x01 },
4864 { OV511_I2C_BUS, 0x12, 0x24 },
4865 { OV511_I2C_BUS, 0x13, 0x01 },
4866 { OV511_I2C_BUS, 0x14, 0x84 },
4867 { OV511_I2C_BUS, 0x15, 0x01 },
4868 { OV511_I2C_BUS, 0x16, 0x03 },
4869 { OV511_I2C_BUS, 0x17, 0x2f },
4870 { OV511_I2C_BUS, 0x18, 0xcf },
4871 { OV511_I2C_BUS, 0x19, 0x06 },
4872 { OV511_I2C_BUS, 0x1a, 0xf5 },
4873 { OV511_I2C_BUS, 0x1b, 0x00 },
4874 { OV511_I2C_BUS, 0x20, 0x18 },
4875 { OV511_I2C_BUS, 0x21, 0x80 },
4876 { OV511_I2C_BUS, 0x22, 0x80 },
4877 { OV511_I2C_BUS, 0x23, 0x00 },
4878 { OV511_I2C_BUS, 0x26, 0xa2 },
4879 { OV511_I2C_BUS, 0x27, 0xea },
4880 { OV511_I2C_BUS, 0x28, 0x20 },
4881 { OV511_I2C_BUS, 0x29, 0x00 },
4882 { OV511_I2C_BUS, 0x2a, 0x10 },
4883 { OV511_I2C_BUS, 0x2b, 0x00 },
4884 { OV511_I2C_BUS, 0x2c, 0x88 },
4885 { OV511_I2C_BUS, 0x2d, 0x91 },
4886 { OV511_I2C_BUS, 0x2e, 0x80 },
4887 { OV511_I2C_BUS, 0x2f, 0x44 },
4888 { OV511_I2C_BUS, 0x60, 0x27 },
4889 { OV511_I2C_BUS, 0x61, 0x02 },
4890 { OV511_I2C_BUS, 0x62, 0x5f },
4891 { OV511_I2C_BUS, 0x63, 0xd5 },
4892 { OV511_I2C_BUS, 0x64, 0x57 },
4893 { OV511_I2C_BUS, 0x65, 0x83 },
4894 { OV511_I2C_BUS, 0x66, 0x55 },
4895 { OV511_I2C_BUS, 0x67, 0x92 },
4896 { OV511_I2C_BUS, 0x68, 0xcf },
4897 { OV511_I2C_BUS, 0x69, 0x76 },
4898 { OV511_I2C_BUS, 0x6a, 0x22 },
4899 { OV511_I2C_BUS, 0x6b, 0x00 },
4900 { OV511_I2C_BUS, 0x6c, 0x02 },
4901 { OV511_I2C_BUS, 0x6d, 0x44 },
4902 { OV511_I2C_BUS, 0x6e, 0x80 },
4903 { OV511_I2C_BUS, 0x6f, 0x1d },
4904 { OV511_I2C_BUS, 0x70, 0x8b },
4905 { OV511_I2C_BUS, 0x71, 0x00 },
4906 { OV511_I2C_BUS, 0x72, 0x14 },
4907 { OV511_I2C_BUS, 0x73, 0x54 },
4908 { OV511_I2C_BUS, 0x74, 0x00 },
4909 { OV511_I2C_BUS, 0x75, 0x8e },
4910 { OV511_I2C_BUS, 0x76, 0x00 },
4911 { OV511_I2C_BUS, 0x77, 0xff },
4912 { OV511_I2C_BUS, 0x78, 0x80 },
4913 { OV511_I2C_BUS, 0x79, 0x80 },
4914 { OV511_I2C_BUS, 0x7a, 0x80 },
4915 { OV511_I2C_BUS, 0x7b, 0xe2 },
4916 { OV511_I2C_BUS, 0x7c, 0x00 },
4917 { OV511_DONE_BUS, 0x0, 0x00 },
4920 PDEBUG(4, "starting configuration");
4922 /* This looks redundant, but is necessary for WebCam 3 */
4923 ov->primary_i2c_slave = OV7xx0_SID;
4924 if (ov51x_set_slave_ids(ov, OV7xx0_SID) < 0)
4927 if (init_ov_sensor(ov) >= 0) {
4928 PDEBUG(1, "OV7xx0 sensor initalized (method 1)");
4930 /* Reset the 76xx */
4931 if (i2c_w(ov, 0x12, 0x80) < 0)
4934 /* Wait for it to initialize */
4939 while (i <= i2c_detect_tries) {
4940 if ((i2c_r(ov, OV7610_REG_ID_HIGH) == 0x7F) &&
4941 (i2c_r(ov, OV7610_REG_ID_LOW) == 0xA2)) {
4949 // Was (i == i2c_detect_tries) previously. This obviously used to always report
4950 // success. Whether anyone actually depended on that bug is unknown
4951 if ((i >= i2c_detect_tries) && (success == 0)) {
4952 err("Failed to read sensor ID. You might not have an");
4953 err("OV7610/20, or it may be not responding. Report");
4954 err("this to " EMAIL);
4955 err("This is only a warning. You can attempt to use");
4956 err("your camera anyway");
4957 // Only issue a warning for now
4960 PDEBUG(1, "OV7xx0 initialized (method 2, %dx)", i+1);
4964 /* Detect sensor (sub)type */
4965 rc = i2c_r(ov, OV7610_REG_COM_I);
4968 err("Error detecting sensor type");
4970 } else if ((rc & 3) == 3) {
4971 info("Sensor is an OV7610");
4972 ov->sensor = SEN_OV7610;
4973 } else if ((rc & 3) == 1) {
4974 /* I don't know what's different about the 76BE yet. */
4975 if (i2c_r(ov, 0x15) & 1)
4976 info("Sensor is an OV7620AE");
4978 info("Sensor is an OV76BE");
4980 /* OV511+ will return all zero isoc data unless we
4981 * configure the sensor as a 7620. Someone needs to
4982 * find the exact reg. setting that causes this. */
4983 if (ov->bridge == BRG_OV511PLUS) {
4984 info("Enabling 511+/7620AE workaround");
4985 ov->sensor = SEN_OV7620;
4987 ov->sensor = SEN_OV76BE;
4989 } else if ((rc & 3) == 0) {
4990 info("Sensor is an OV7620");
4991 ov->sensor = SEN_OV7620;
4993 err("Unknown image sensor version: %d", rc & 3);
4997 if (ov->sensor == SEN_OV7620) {
4998 PDEBUG(4, "Writing 7620 registers");
4999 if (write_regvals(ov, aRegvalsNorm7620))
5002 PDEBUG(4, "Writing 7610 registers");
5003 if (write_regvals(ov, aRegvalsNorm7610))
5007 /* Set sensor-specific vars */
5009 ov->maxheight = 480;
5013 // FIXME: These do not match the actual settings yet
5014 ov->brightness = 0x80 << 8;
5015 ov->contrast = 0x80 << 8;
5016 ov->colour = 0x80 << 8;
5017 ov->hue = 0x80 << 8;
5022 /* This initializes the OV6620, OV6630, OV6630AE, or OV6630AF sensor. */
5024 ov6xx0_configure(struct usb_ov511 *ov)
5028 static struct ov511_regvals aRegvalsNorm6x20[] = {
5029 { OV511_I2C_BUS, 0x12, 0x80 }, /* reset */
5030 { OV511_I2C_BUS, 0x11, 0x01 },
5031 { OV511_I2C_BUS, 0x03, 0x60 },
5032 { OV511_I2C_BUS, 0x05, 0x7f }, /* For when autoadjust is off */
5033 { OV511_I2C_BUS, 0x07, 0xa8 },
5034 /* The ratio of 0x0c and 0x0d controls the white point */
5035 { OV511_I2C_BUS, 0x0c, 0x24 },
5036 { OV511_I2C_BUS, 0x0d, 0x24 },
5037 { OV511_I2C_BUS, 0x0f, 0x15 }, /* COMS */
5038 { OV511_I2C_BUS, 0x10, 0x75 }, /* AEC Exposure time */
5039 { OV511_I2C_BUS, 0x12, 0x24 }, /* Enable AGC */
5040 { OV511_I2C_BUS, 0x14, 0x04 },
5041 /* 0x16: 0x06 helps frame stability with moving objects */
5042 { OV511_I2C_BUS, 0x16, 0x06 },
5043 // { OV511_I2C_BUS, 0x20, 0x30 }, /* Aperture correction enable */
5044 { OV511_I2C_BUS, 0x26, 0xb2 }, /* BLC enable */
5045 /* 0x28: 0x05 Selects RGB format if RGB on */
5046 { OV511_I2C_BUS, 0x28, 0x05 },
5047 { OV511_I2C_BUS, 0x2a, 0x04 }, /* Disable framerate adjust */
5048 // { OV511_I2C_BUS, 0x2b, 0xac }, /* Framerate; Set 2a[7] first */
5049 { OV511_I2C_BUS, 0x2d, 0x99 },
5050 { OV511_I2C_BUS, 0x33, 0xa0 }, /* Color Procesing Parameter */
5051 { OV511_I2C_BUS, 0x34, 0xd2 }, /* Max A/D range */
5052 { OV511_I2C_BUS, 0x38, 0x8b },
5053 { OV511_I2C_BUS, 0x39, 0x40 },
5055 { OV511_I2C_BUS, 0x3c, 0x39 }, /* Enable AEC mode changing */
5056 { OV511_I2C_BUS, 0x3c, 0x3c }, /* Change AEC mode */
5057 { OV511_I2C_BUS, 0x3c, 0x24 }, /* Disable AEC mode changing */
5059 { OV511_I2C_BUS, 0x3d, 0x80 },
5060 /* These next two registers (0x4a, 0x4b) are undocumented. They
5061 * control the color balance */
5062 { OV511_I2C_BUS, 0x4a, 0x80 },
5063 { OV511_I2C_BUS, 0x4b, 0x80 },
5064 { OV511_I2C_BUS, 0x4d, 0xd2 }, /* This reduces noise a bit */
5065 { OV511_I2C_BUS, 0x4e, 0xc1 },
5066 { OV511_I2C_BUS, 0x4f, 0x04 },
5067 // Do 50-53 have any effect?
5068 // Toggle 0x12[2] off and on here?
5069 { OV511_DONE_BUS, 0x0, 0x00 }, /* END MARKER */
5072 static struct ov511_regvals aRegvalsNorm6x30[] = {
5073 /*OK*/ { OV511_I2C_BUS, 0x12, 0x80 }, /* reset */
5074 { OV511_I2C_BUS, 0x11, 0x00 },
5075 /*OK*/ { OV511_I2C_BUS, 0x03, 0x60 },
5076 /*0A?*/ { OV511_I2C_BUS, 0x05, 0x7f }, /* For when autoadjust is off */
5077 { OV511_I2C_BUS, 0x07, 0xa8 },
5078 /* The ratio of 0x0c and 0x0d controls the white point */
5079 /*OK*/ { OV511_I2C_BUS, 0x0c, 0x24 },
5080 /*OK*/ { OV511_I2C_BUS, 0x0d, 0x24 },
5081 /*A*/ { OV511_I2C_BUS, 0x0e, 0x20 },
5082 // /*04?*/ { OV511_I2C_BUS, 0x14, 0x80 },
5083 { OV511_I2C_BUS, 0x16, 0x03 },
5084 // /*OK*/ { OV511_I2C_BUS, 0x20, 0x30 }, /* Aperture correction enable */
5085 // 21 & 22? The suggested values look wrong. Go with default
5086 /*A*/ { OV511_I2C_BUS, 0x23, 0xc0 },
5087 /*A*/ { OV511_I2C_BUS, 0x25, 0x9a }, // Check this against default
5088 // /*OK*/ { OV511_I2C_BUS, 0x26, 0xb2 }, /* BLC enable */
5090 /* 0x28: 0x05 Selects RGB format if RGB on */
5091 // /*04?*/ { OV511_I2C_BUS, 0x28, 0x05 },
5092 // /*04?*/ { OV511_I2C_BUS, 0x28, 0x45 }, // DEBUG: Tristate UV bus
5094 /*OK*/ { OV511_I2C_BUS, 0x2a, 0x04 }, /* Disable framerate adjust */
5095 // /*OK*/ { OV511_I2C_BUS, 0x2b, 0xac }, /* Framerate; Set 2a[7] first */
5096 { OV511_I2C_BUS, 0x2d, 0x99 },
5097 // /*A*/ { OV511_I2C_BUS, 0x33, 0x26 }, // Reserved bits on 6620
5098 // /*d2?*/ { OV511_I2C_BUS, 0x34, 0x03 }, /* Max A/D range */
5099 // /*8b?*/ { OV511_I2C_BUS, 0x38, 0x83 },
5100 // /*40?*/ { OV511_I2C_BUS, 0x39, 0xc0 }, // 6630 adds bit 7
5101 // { OV511_I2C_BUS, 0x3c, 0x39 }, /* Enable AEC mode changing */
5102 // { OV511_I2C_BUS, 0x3c, 0x3c }, /* Change AEC mode */
5103 // { OV511_I2C_BUS, 0x3c, 0x24 }, /* Disable AEC mode changing */
5104 { OV511_I2C_BUS, 0x3d, 0x80 },
5105 // /*A*/ { OV511_I2C_BUS, 0x3f, 0x0e },
5107 /* These next two registers (0x4a, 0x4b) are undocumented. They
5108 * control the color balance */
5109 // /*OK?*/ { OV511_I2C_BUS, 0x4a, 0x80 }, // Check these
5110 // /*OK?*/ { OV511_I2C_BUS, 0x4b, 0x80 },
5111 { OV511_I2C_BUS, 0x4d, 0x10 }, /* U = 0.563u, V = 0.714v */
5112 /*c1?*/ { OV511_I2C_BUS, 0x4e, 0x40 },
5114 /* UV average mode, color killer: strongest */
5115 { OV511_I2C_BUS, 0x4f, 0x07 },
5117 { OV511_I2C_BUS, 0x54, 0x23 }, /* Max AGC gain: 18dB */
5118 { OV511_I2C_BUS, 0x57, 0x81 }, /* (default) */
5119 { OV511_I2C_BUS, 0x59, 0x01 }, /* AGC dark current comp: +1 */
5120 { OV511_I2C_BUS, 0x5a, 0x2c }, /* (undocumented) */
5121 { OV511_I2C_BUS, 0x5b, 0x0f }, /* AWB chrominance levels */
5122 // { OV511_I2C_BUS, 0x5c, 0x10 },
5123 { OV511_DONE_BUS, 0x0, 0x00 }, /* END MARKER */
5126 PDEBUG(4, "starting sensor configuration");
5128 if (init_ov_sensor(ov) < 0) {
5129 err("Failed to read sensor ID. You might not have an OV6xx0,");
5130 err("or it may be not responding. Report this to " EMAIL);
5133 PDEBUG(1, "OV6xx0 sensor detected");
5136 /* Detect sensor (sub)type */
5137 rc = i2c_r(ov, OV7610_REG_COM_I);
5140 err("Error detecting sensor type");
5144 if ((rc & 3) == 0) {
5145 ov->sensor = SEN_OV6630;
5146 info("Sensor is an OV6630");
5147 } else if ((rc & 3) == 1) {
5148 ov->sensor = SEN_OV6620;
5149 info("Sensor is an OV6620");
5150 } else if ((rc & 3) == 2) {
5151 ov->sensor = SEN_OV6630;
5152 info("Sensor is an OV6630AE");
5153 } else if ((rc & 3) == 3) {
5154 ov->sensor = SEN_OV6630;
5155 info("Sensor is an OV6630AF");
5158 /* Set sensor-specific vars */
5160 ov->maxheight = 288;
5164 // FIXME: These do not match the actual settings yet
5165 ov->brightness = 0x80 << 8;
5166 ov->contrast = 0x80 << 8;
5167 ov->colour = 0x80 << 8;
5168 ov->hue = 0x80 << 8;
5170 if (ov->sensor == SEN_OV6620) {
5171 PDEBUG(4, "Writing 6x20 registers");
5172 if (write_regvals(ov, aRegvalsNorm6x20))
5175 PDEBUG(4, "Writing 6x30 registers");
5176 if (write_regvals(ov, aRegvalsNorm6x30))
5183 /* This initializes the KS0127 and KS0127B video decoders. */
5185 ks0127_configure(struct usb_ov511 *ov)
5189 // FIXME: I don't know how to sync or reset it yet
5191 if (ov51x_init_ks_sensor(ov) < 0) {
5192 err("Failed to initialize the KS0127");
5195 PDEBUG(1, "KS012x(B) sensor detected");
5199 /* Detect decoder subtype */
5200 rc = i2c_r(ov, 0x00);
5202 err("Error detecting sensor type");
5204 } else if (rc & 0x08) {
5205 rc = i2c_r(ov, 0x3d);
5207 err("Error detecting sensor type");
5209 } else if ((rc & 0x0f) == 0) {
5210 info("Sensor is a KS0127");
5211 ov->sensor = SEN_KS0127;
5212 } else if ((rc & 0x0f) == 9) {
5213 info("Sensor is a KS0127B Rev. A");
5214 ov->sensor = SEN_KS0127B;
5217 err("Error: Sensor is an unsupported KS0122");
5221 /* Set sensor-specific vars */
5223 ov->maxheight = 480;
5227 // FIXME: These do not match the actual settings yet
5228 ov->brightness = 0x80 << 8;
5229 ov->contrast = 0x80 << 8;
5230 ov->colour = 0x80 << 8;
5231 ov->hue = 0x80 << 8;
5233 /* This device is not supported yet. Bail out now... */
5234 err("This sensor is not supported yet.");
5240 /* This initializes the SAA7111A video decoder. */
5242 saa7111a_configure(struct usb_ov511 *ov)
5246 /* Since there is no register reset command, all registers must be
5247 * written, otherwise gives erratic results */
5248 static struct ov511_regvals aRegvalsNormSAA7111A[] = {
5249 { OV511_I2C_BUS, 0x06, 0xce },
5250 { OV511_I2C_BUS, 0x07, 0x00 },
5251 { OV511_I2C_BUS, 0x10, 0x44 }, /* YUV422, 240/286 lines */
5252 { OV511_I2C_BUS, 0x0e, 0x01 }, /* NTSC M or PAL BGHI */
5253 { OV511_I2C_BUS, 0x00, 0x00 },
5254 { OV511_I2C_BUS, 0x01, 0x00 },
5255 { OV511_I2C_BUS, 0x03, 0x23 },
5256 { OV511_I2C_BUS, 0x04, 0x00 },
5257 { OV511_I2C_BUS, 0x05, 0x00 },
5258 { OV511_I2C_BUS, 0x08, 0xc8 }, /* Auto field freq */
5259 { OV511_I2C_BUS, 0x09, 0x01 }, /* Chrom. trap off, APER=0.25 */
5260 { OV511_I2C_BUS, 0x0a, 0x80 }, /* BRIG=128 */
5261 { OV511_I2C_BUS, 0x0b, 0x40 }, /* CONT=1.0 */
5262 { OV511_I2C_BUS, 0x0c, 0x40 }, /* SATN=1.0 */
5263 { OV511_I2C_BUS, 0x0d, 0x00 }, /* HUE=0 */
5264 { OV511_I2C_BUS, 0x0f, 0x00 },
5265 { OV511_I2C_BUS, 0x11, 0x0c },
5266 { OV511_I2C_BUS, 0x12, 0x00 },
5267 { OV511_I2C_BUS, 0x13, 0x00 },
5268 { OV511_I2C_BUS, 0x14, 0x00 },
5269 { OV511_I2C_BUS, 0x15, 0x00 },
5270 { OV511_I2C_BUS, 0x16, 0x00 },
5271 { OV511_I2C_BUS, 0x17, 0x00 },
5272 { OV511_I2C_BUS, 0x02, 0xc0 }, /* Composite input 0 */
5273 { OV511_DONE_BUS, 0x0, 0x00 },
5276 // FIXME: I don't know how to sync or reset it yet
5278 if (ov51x_init_saa_sensor(ov) < 0) {
5279 err("Failed to initialize the SAA7111A");
5282 PDEBUG(1, "SAA7111A sensor detected");
5286 /* 640x480 not supported with PAL */
5289 ov->maxheight = 240; /* Even field only */
5292 ov->maxheight = 480; /* Even/Odd fields */
5296 ov->minheight = 240; /* Even field only */
5298 ov->has_decoder = 1;
5300 ov->norm = VIDEO_MODE_AUTO;
5301 ov->stop_during_set = 0; /* Decoder guarantees stable image */
5303 /* Decoder doesn't change these values, so we use these instead of
5304 * acutally reading the registers (which doesn't work) */
5305 ov->brightness = 0x80 << 8;
5306 ov->contrast = 0x40 << 9;
5307 ov->colour = 0x40 << 9;
5310 PDEBUG(4, "Writing SAA7111A registers");
5311 if (write_regvals(ov, aRegvalsNormSAA7111A))
5314 /* Detect version of decoder. This must be done after writing the
5315 * initial regs or the decoder will lock up. */
5316 rc = i2c_r(ov, 0x00);
5319 err("Error detecting sensor version");
5322 info("Sensor is an SAA7111A (version 0x%x)", rc);
5323 ov->sensor = SEN_SAA7111A;
5326 // FIXME: Fix this for OV518(+)
5327 /* Latch to negative edge of clock. Otherwise, we get incorrect
5328 * colors and jitter in the digital signal. */
5329 if (ov->bclass == BCL_OV511)
5330 reg_w(ov, 0x11, 0x00);
5332 warn("SAA7111A not yet supported with OV518/OV518+");
5337 /* This initializes the OV511/OV511+ and the sensor */
5339 ov511_configure(struct usb_ov511 *ov)
5341 static struct ov511_regvals aRegvalsInit511[] = {
5342 { OV511_REG_BUS, R51x_SYS_RESET, 0x7f },
5343 { OV511_REG_BUS, R51x_SYS_INIT, 0x01 },
5344 { OV511_REG_BUS, R51x_SYS_RESET, 0x7f },
5345 { OV511_REG_BUS, R51x_SYS_INIT, 0x01 },
5346 { OV511_REG_BUS, R51x_SYS_RESET, 0x3f },
5347 { OV511_REG_BUS, R51x_SYS_INIT, 0x01 },
5348 { OV511_REG_BUS, R51x_SYS_RESET, 0x3d },
5349 { OV511_DONE_BUS, 0x0, 0x00},
5352 static struct ov511_regvals aRegvalsNorm511[] = {
5353 { OV511_REG_BUS, R511_DRAM_FLOW_CTL, 0x01 },
5354 { OV511_REG_BUS, R51x_SYS_SNAP, 0x00 },
5355 { OV511_REG_BUS, R51x_SYS_SNAP, 0x02 },
5356 { OV511_REG_BUS, R51x_SYS_SNAP, 0x00 },
5357 { OV511_REG_BUS, R511_FIFO_OPTS, 0x1f },
5358 { OV511_REG_BUS, R511_COMP_EN, 0x00 },
5359 { OV511_REG_BUS, R511_COMP_LUT_EN, 0x03 },
5360 { OV511_DONE_BUS, 0x0, 0x00 },
5363 static struct ov511_regvals aRegvalsNorm511Plus[] = {
5364 { OV511_REG_BUS, R511_DRAM_FLOW_CTL, 0xff },
5365 { OV511_REG_BUS, R51x_SYS_SNAP, 0x00 },
5366 { OV511_REG_BUS, R51x_SYS_SNAP, 0x02 },
5367 { OV511_REG_BUS, R51x_SYS_SNAP, 0x00 },
5368 { OV511_REG_BUS, R511_FIFO_OPTS, 0xff },
5369 { OV511_REG_BUS, R511_COMP_EN, 0x00 },
5370 { OV511_REG_BUS, R511_COMP_LUT_EN, 0x03 },
5371 { OV511_DONE_BUS, 0x0, 0x00 },
5376 ov->customid = reg_r(ov, R511_SYS_CUST_ID);
5377 if (ov->customid < 0) {
5378 err("Unable to read camera bridge registers");
5382 PDEBUG (1, "CustomID = %d", ov->customid);
5383 ov->desc = symbolic(camlist, ov->customid);
5384 info("model: %s", ov->desc);
5386 if (0 == strcmp(ov->desc, NOT_DEFINED_STR)) {
5387 err("Camera type (%d) not recognized", ov->customid);
5388 err("Please notify " EMAIL " of the name,");
5389 err("manufacturer, model, and this number of your camera.");
5390 err("Also include the output of the detection process.");
5393 if (ov->customid == 70) /* USB Life TV (PAL/SECAM) */
5396 if (write_regvals(ov, aRegvalsInit511))
5399 if (ov->led_policy == LED_OFF || ov->led_policy == LED_AUTO)
5400 ov51x_led_control(ov, 0);
5402 /* The OV511+ has undocumented bits in the flow control register.
5403 * Setting it to 0xff fixes the corruption with moving objects. */
5404 if (ov->bridge == BRG_OV511) {
5405 if (write_regvals(ov, aRegvalsNorm511))
5407 } else if (ov->bridge == BRG_OV511PLUS) {
5408 if (write_regvals(ov, aRegvalsNorm511Plus))
5411 err("Invalid bridge");
5414 if (ov511_init_compression(ov))
5417 ov->packet_numbering = 1;
5418 ov511_set_packet_size(ov, 0);
5420 ov->snap_enabled = snapshot;
5423 PDEBUG(3, "Testing for 0V7xx0");
5424 ov->primary_i2c_slave = OV7xx0_SID;
5425 if (ov51x_set_slave_ids(ov, OV7xx0_SID) < 0)
5428 if (i2c_w(ov, 0x12, 0x80) < 0) {
5430 PDEBUG(3, "Testing for 0V6xx0");
5431 ov->primary_i2c_slave = OV6xx0_SID;
5432 if (ov51x_set_slave_ids(ov, OV6xx0_SID) < 0)
5435 if (i2c_w(ov, 0x12, 0x80) < 0) {
5437 PDEBUG(3, "Testing for 0V8xx0");
5438 ov->primary_i2c_slave = OV8xx0_SID;
5439 if (ov51x_set_slave_ids(ov, OV8xx0_SID) < 0)
5442 if (i2c_w(ov, 0x12, 0x80) < 0) {
5443 /* Test for SAA7111A */
5444 PDEBUG(3, "Testing for SAA7111A");
5445 ov->primary_i2c_slave = SAA7111A_SID;
5446 if (ov51x_set_slave_ids(ov, SAA7111A_SID) < 0)
5449 if (i2c_w(ov, 0x0d, 0x00) < 0) {
5450 /* Test for KS0127 */
5451 PDEBUG(3, "Testing for KS0127");
5452 ov->primary_i2c_slave = KS0127_SID;
5453 if (ov51x_set_slave_ids(ov, KS0127_SID) < 0)
5456 if (i2c_w(ov, 0x10, 0x00) < 0) {
5457 err("Can't determine sensor slave IDs");
5460 if (ks0127_configure(ov) < 0) {
5461 err("Failed to configure KS0127");
5466 if (saa7111a_configure(ov) < 0) {
5467 err("Failed to configure SAA7111A");
5472 err("Detected unsupported OV8xx0 sensor");
5476 if (ov6xx0_configure(ov) < 0) {
5477 err("Failed to configure OV6xx0");
5482 if (ov7xx0_configure(ov) < 0) {
5483 err("Failed to configure OV7xx0");
5491 err("OV511 Config failed");
5496 /* This initializes the OV518/OV518+ and the sensor */
5498 ov518_configure(struct usb_ov511 *ov)
5500 /* For 518 and 518+ */
5501 static struct ov511_regvals aRegvalsInit518[] = {
5502 { OV511_REG_BUS, R51x_SYS_RESET, 0x40 },
5503 { OV511_REG_BUS, R51x_SYS_INIT, 0xe1 },
5504 { OV511_REG_BUS, R51x_SYS_RESET, 0x3e },
5505 { OV511_REG_BUS, R51x_SYS_INIT, 0xe1 },
5506 { OV511_REG_BUS, R51x_SYS_RESET, 0x00 },
5507 { OV511_REG_BUS, R51x_SYS_INIT, 0xe1 },
5508 { OV511_REG_BUS, 0x46, 0x00 },
5509 { OV511_REG_BUS, 0x5d, 0x03 },
5510 { OV511_DONE_BUS, 0x0, 0x00},
5513 static struct ov511_regvals aRegvalsNorm518[] = {
5514 { OV511_REG_BUS, R51x_SYS_SNAP, 0x02 }, /* Reset */
5515 { OV511_REG_BUS, R51x_SYS_SNAP, 0x01 }, /* Enable */
5516 { OV511_REG_BUS, 0x31, 0x0f },
5517 { OV511_REG_BUS, 0x5d, 0x03 },
5518 { OV511_REG_BUS, 0x24, 0x9f },
5519 { OV511_REG_BUS, 0x25, 0x90 },
5520 { OV511_REG_BUS, 0x20, 0x00 },
5521 { OV511_REG_BUS, 0x51, 0x04 },
5522 { OV511_REG_BUS, 0x71, 0x19 },
5523 { OV511_DONE_BUS, 0x0, 0x00 },
5526 static struct ov511_regvals aRegvalsNorm518Plus[] = {
5527 { OV511_REG_BUS, R51x_SYS_SNAP, 0x02 }, /* Reset */
5528 { OV511_REG_BUS, R51x_SYS_SNAP, 0x01 }, /* Enable */
5529 { OV511_REG_BUS, 0x31, 0x0f },
5530 { OV511_REG_BUS, 0x5d, 0x03 },
5531 { OV511_REG_BUS, 0x24, 0x9f },
5532 { OV511_REG_BUS, 0x25, 0x90 },
5533 { OV511_REG_BUS, 0x20, 0x60 },
5534 { OV511_REG_BUS, 0x51, 0x02 },
5535 { OV511_REG_BUS, 0x71, 0x19 },
5536 { OV511_REG_BUS, 0x40, 0xff },
5537 { OV511_REG_BUS, 0x41, 0x42 },
5538 { OV511_REG_BUS, 0x46, 0x00 },
5539 { OV511_REG_BUS, 0x33, 0x04 },
5540 { OV511_REG_BUS, 0x21, 0x19 },
5541 { OV511_REG_BUS, 0x3f, 0x10 },
5542 { OV511_DONE_BUS, 0x0, 0x00 },
5547 /* First 5 bits of custom ID reg are a revision ID on OV518 */
5548 info("Device revision %d", 0x1F & reg_r(ov, R511_SYS_CUST_ID));
5550 /* Give it the default description */
5551 ov->desc = symbolic(camlist, 0);
5553 if (write_regvals(ov, aRegvalsInit518))
5556 /* Set LED GPIO pin to output mode */
5557 if (reg_w_mask(ov, 0x57, 0x00, 0x02) < 0)
5560 /* LED is off by default with OV518; have to explicitly turn it on */
5561 if (ov->led_policy == LED_OFF || ov->led_policy == LED_AUTO)
5562 ov51x_led_control(ov, 0);
5564 ov51x_led_control(ov, 1);
5566 /* Don't require compression if dumppix is enabled; otherwise it's
5567 * required. OV518 has no uncompressed mode, to save RAM. */
5568 if (!dumppix && !ov->compress) {
5570 warn("Compression required with OV518...enabling");
5573 if (ov->bridge == BRG_OV518) {
5574 if (write_regvals(ov, aRegvalsNorm518))
5576 } else if (ov->bridge == BRG_OV518PLUS) {
5577 if (write_regvals(ov, aRegvalsNorm518Plus))
5580 err("Invalid bridge");
5583 if (reg_w(ov, 0x2f, 0x80) < 0)
5586 if (ov518_init_compression(ov))
5589 if (ov->bridge == BRG_OV518)
5591 struct usb_interface *ifp;
5592 struct usb_host_interface *alt;
5595 ifp = usb_ifnum_to_if(ov->dev, 0);
5597 alt = usb_altnum_to_altsetting(ifp, 7);
5599 mxps = alt->endpoint[0].desc.wMaxPacketSize;
5602 /* Some OV518s have packet numbering by default, some don't */
5604 ov->packet_numbering = 1;
5606 ov->packet_numbering = 0;
5608 /* OV518+ has packet numbering turned on by default */
5609 ov->packet_numbering = 1;
5612 ov518_set_packet_size(ov, 0);
5614 ov->snap_enabled = snapshot;
5617 ov->primary_i2c_slave = OV7xx0_SID;
5618 if (ov51x_set_slave_ids(ov, OV7xx0_SID) < 0)
5621 /* The OV518 must be more aggressive about sensor detection since
5622 * I2C write will never fail if the sensor is not present. We have
5623 * to try to initialize the sensor to detect its presence */
5625 if (init_ov_sensor(ov) < 0) {
5627 ov->primary_i2c_slave = OV6xx0_SID;
5628 if (ov51x_set_slave_ids(ov, OV6xx0_SID) < 0)
5631 if (init_ov_sensor(ov) < 0) {
5633 ov->primary_i2c_slave = OV8xx0_SID;
5634 if (ov51x_set_slave_ids(ov, OV8xx0_SID) < 0)
5637 if (init_ov_sensor(ov) < 0) {
5638 err("Can't determine sensor slave IDs");
5641 err("Detected unsupported OV8xx0 sensor");
5645 if (ov6xx0_configure(ov) < 0) {
5646 err("Failed to configure OV6xx0");
5651 if (ov7xx0_configure(ov) < 0) {
5652 err("Failed to configure OV7xx0");
5658 ov->maxheight = 288;
5660 // The OV518 cannot go as low as the sensor can
5662 ov->minheight = 120;
5667 err("OV518 Config failed");
5672 /****************************************************************************
5674 ***************************************************************************/
5676 static inline struct usb_ov511 *cd_to_ov(struct class_device *cd)
5678 struct video_device *vdev = to_video_device(cd);
5679 return video_get_drvdata(vdev);
5682 static ssize_t show_custom_id(struct class_device *cd, char *buf)
5684 struct usb_ov511 *ov = cd_to_ov(cd);
5685 return sprintf(buf, "%d\n", ov->customid);
5687 static CLASS_DEVICE_ATTR(custom_id, S_IRUGO, show_custom_id, NULL);
5689 static ssize_t show_model(struct class_device *cd, char *buf)
5691 struct usb_ov511 *ov = cd_to_ov(cd);
5692 return sprintf(buf, "%s\n", ov->desc);
5694 static CLASS_DEVICE_ATTR(model, S_IRUGO, show_model, NULL);
5696 static ssize_t show_bridge(struct class_device *cd, char *buf)
5698 struct usb_ov511 *ov = cd_to_ov(cd);
5699 return sprintf(buf, "%s\n", symbolic(brglist, ov->bridge));
5701 static CLASS_DEVICE_ATTR(bridge, S_IRUGO, show_bridge, NULL);
5703 static ssize_t show_sensor(struct class_device *cd, char *buf)
5705 struct usb_ov511 *ov = cd_to_ov(cd);
5706 return sprintf(buf, "%s\n", symbolic(senlist, ov->sensor));
5708 static CLASS_DEVICE_ATTR(sensor, S_IRUGO, show_sensor, NULL);
5710 static ssize_t show_brightness(struct class_device *cd, char *buf)
5712 struct usb_ov511 *ov = cd_to_ov(cd);
5717 sensor_get_brightness(ov, &x);
5718 return sprintf(buf, "%d\n", x >> 8);
5720 static CLASS_DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL);
5722 static ssize_t show_saturation(struct class_device *cd, char *buf)
5724 struct usb_ov511 *ov = cd_to_ov(cd);
5729 sensor_get_saturation(ov, &x);
5730 return sprintf(buf, "%d\n", x >> 8);
5732 static CLASS_DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL);
5734 static ssize_t show_contrast(struct class_device *cd, char *buf)
5736 struct usb_ov511 *ov = cd_to_ov(cd);
5741 sensor_get_contrast(ov, &x);
5742 return sprintf(buf, "%d\n", x >> 8);
5744 static CLASS_DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL);
5746 static ssize_t show_hue(struct class_device *cd, char *buf)
5748 struct usb_ov511 *ov = cd_to_ov(cd);
5753 sensor_get_hue(ov, &x);
5754 return sprintf(buf, "%d\n", x >> 8);
5756 static CLASS_DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL);
5758 static ssize_t show_exposure(struct class_device *cd, char *buf)
5760 struct usb_ov511 *ov = cd_to_ov(cd);
5765 sensor_get_exposure(ov, &exp);
5766 return sprintf(buf, "%d\n", exp >> 8);
5768 static CLASS_DEVICE_ATTR(exposure, S_IRUGO, show_exposure, NULL);
5770 static void ov_create_sysfs(struct video_device *vdev)
5772 video_device_create_file(vdev, &class_device_attr_custom_id);
5773 video_device_create_file(vdev, &class_device_attr_model);
5774 video_device_create_file(vdev, &class_device_attr_bridge);
5775 video_device_create_file(vdev, &class_device_attr_sensor);
5776 video_device_create_file(vdev, &class_device_attr_brightness);
5777 video_device_create_file(vdev, &class_device_attr_saturation);
5778 video_device_create_file(vdev, &class_device_attr_contrast);
5779 video_device_create_file(vdev, &class_device_attr_hue);
5780 video_device_create_file(vdev, &class_device_attr_exposure);
5783 /****************************************************************************
5785 ***************************************************************************/
5788 ov51x_probe(struct usb_interface *intf, const struct usb_device_id *id)
5790 struct usb_device *dev = interface_to_usbdev(intf);
5791 struct usb_interface_descriptor *idesc;
5792 struct usb_ov511 *ov;
5795 PDEBUG(1, "probing for device...");
5797 /* We don't handle multi-config cameras */
5798 if (dev->descriptor.bNumConfigurations != 1)
5801 idesc = &intf->cur_altsetting->desc;
5803 if (idesc->bInterfaceClass != 0xFF)
5805 if (idesc->bInterfaceSubClass != 0x00)
5808 if ((ov = kmalloc(sizeof(*ov), GFP_KERNEL)) == NULL) {
5809 err("couldn't kmalloc ov struct");
5813 memset(ov, 0, sizeof(*ov));
5816 ov->iface = idesc->bInterfaceNumber;
5817 ov->led_policy = led;
5818 ov->compress = compress;
5819 ov->lightfreq = lightfreq;
5820 ov->num_inputs = 1; /* Video decoder init functs. change this */
5821 ov->stop_during_set = !fastset;
5822 ov->backlight = backlight;
5823 ov->mirror = mirror;
5824 ov->auto_brt = autobright;
5825 ov->auto_gain = autogain;
5826 ov->auto_exp = autoexp;
5828 switch (dev->descriptor.idProduct) {
5830 ov->bridge = BRG_OV511;
5831 ov->bclass = BCL_OV511;
5833 case PROD_OV511PLUS:
5834 ov->bridge = BRG_OV511PLUS;
5835 ov->bclass = BCL_OV511;
5838 ov->bridge = BRG_OV518;
5839 ov->bclass = BCL_OV518;
5841 case PROD_OV518PLUS:
5842 ov->bridge = BRG_OV518PLUS;
5843 ov->bclass = BCL_OV518;
5846 if (dev->descriptor.idVendor != VEND_MATTEL)
5848 ov->bridge = BRG_OV511PLUS;
5849 ov->bclass = BCL_OV511;
5852 err("Unknown product ID 0x%04x", dev->descriptor.idProduct);
5856 info("USB %s video device found", symbolic(brglist, ov->bridge));
5858 init_waitqueue_head(&ov->wq);
5860 init_MUTEX(&ov->lock); /* to 1 == available */
5861 init_MUTEX(&ov->buf_lock);
5862 init_MUTEX(&ov->param_lock);
5863 init_MUTEX(&ov->i2c_lock);
5864 init_MUTEX(&ov->cbuf_lock);
5866 ov->buf_state = BUF_NOT_ALLOCATED;
5868 if (usb_make_path(dev, ov->usb_path, OV511_USB_PATH_LEN) < 0) {
5869 err("usb_make_path error");
5873 /* Allocate control transfer buffer. */
5874 /* Must be kmalloc()'ed, for DMA compatibility */
5875 ov->cbuf = kmalloc(OV511_CBUF_SIZE, GFP_KERNEL);
5879 if (ov->bclass == BCL_OV518) {
5880 if (ov518_configure(ov) < 0)
5883 if (ov511_configure(ov) < 0)
5887 for (i = 0; i < OV511_NUMFRAMES; i++) {
5888 ov->frame[i].framenum = i;
5889 init_waitqueue_head(&ov->frame[i].wq);
5892 for (i = 0; i < OV511_NUMSBUF; i++) {
5893 ov->sbuf[i].ov = ov;
5894 spin_lock_init(&ov->sbuf[i].lock);
5898 /* Unnecessary? (This is done on open(). Need to make sure variables
5899 * are properly initialized without this before removing it, though). */
5900 if (ov51x_set_default_params(ov) < 0)
5905 if (ov->bclass == BCL_OV511)
5906 ov511_dump_regs(ov);
5908 ov518_dump_regs(ov);
5912 ov->vdev = video_device_alloc();
5916 memcpy(ov->vdev, &vdev_template, sizeof(*ov->vdev));
5917 ov->vdev->dev = &dev->dev;
5918 video_set_drvdata(ov->vdev, ov);
5920 for (i = 0; i < OV511_MAX_UNIT_VIDEO; i++) {
5921 /* Minor 0 cannot be specified; assume user wants autodetect */
5922 if (unit_video[i] == 0)
5925 if (video_register_device(ov->vdev, VFL_TYPE_GRABBER,
5926 unit_video[i]) >= 0) {
5931 /* Use the next available one */
5932 if ((ov->vdev->minor == -1) &&
5933 video_register_device(ov->vdev, VFL_TYPE_GRABBER, -1) < 0) {
5934 err("video_register_device failed");
5938 info("Device at %s registered to minor %d", ov->usb_path,
5941 usb_set_intfdata(intf, ov);
5942 ov_create_sysfs(ov->vdev);
5947 if (-1 == ov->vdev->minor)
5948 video_device_release(ov->vdev);
5950 video_unregister_device(ov->vdev);
5955 down(&ov->cbuf_lock);
5967 err("Camera initialization failed");
5972 ov51x_disconnect(struct usb_interface *intf)
5974 struct usb_ov511 *ov = usb_get_intfdata(intf);
5979 usb_set_intfdata (intf, NULL);
5985 video_unregister_device(ov->vdev);
5987 for (n = 0; n < OV511_NUMFRAMES; n++)
5988 ov->frame[n].grabstate = FRAME_ERROR;
5992 /* This will cause the process to request another frame */
5993 for (n = 0; n < OV511_NUMFRAMES; n++)
5994 wake_up_interruptible(&ov->frame[n].wq);
5996 wake_up_interruptible(&ov->wq);
5999 ov51x_unlink_isoc(ov);
6003 /* Free the memory */
6004 if (ov && !ov->user) {
6005 down(&ov->cbuf_lock);
6015 PDEBUG(3, "Disconnect complete");
6018 static struct usb_driver ov511_driver = {
6019 .owner = THIS_MODULE,
6021 .id_table = device_table,
6022 .probe = ov51x_probe,
6023 .disconnect = ov51x_disconnect
6026 /****************************************************************************
6030 ***************************************************************************/
6032 /* Returns 0 for success */
6034 ov511_register_decomp_module(int ver, struct ov51x_decomp_ops *ops, int ov518,
6037 if (ver != DECOMP_INTERFACE_VER) {
6038 err("Decompression module has incompatible");
6039 err("interface version %d", ver);
6040 err("Interface version %d is required", DECOMP_INTERFACE_VER);
6047 if (mmx && !ov51x_mmx_available) {
6048 err("MMX not available on this system or kernel");
6056 if (ov518_mmx_decomp_ops)
6059 ov518_mmx_decomp_ops = ops;
6061 if (ov518_decomp_ops)
6064 ov518_decomp_ops = ops;
6068 if (ov511_mmx_decomp_ops)
6071 ov511_mmx_decomp_ops = ops;
6073 if (ov511_decomp_ops)
6076 ov511_decomp_ops = ops;
6089 ov511_deregister_decomp_module(int ov518, int mmx)
6095 ov518_mmx_decomp_ops = NULL;
6097 ov518_decomp_ops = NULL;
6100 ov511_mmx_decomp_ops = NULL;
6102 ov511_decomp_ops = NULL;
6109 usb_ov511_init(void)
6113 retval = usb_register(&ov511_driver);
6117 info(DRIVER_VERSION " : " DRIVER_DESC);
6124 usb_ov511_exit(void)
6126 usb_deregister(&ov511_driver);
6127 info("driver deregistered");
6131 module_init(usb_ov511_init);
6132 module_exit(usb_ov511_exit);
6134 EXPORT_SYMBOL(ov511_register_decomp_module);
6135 EXPORT_SYMBOL(ov511_deregister_decomp_module);