4 * Copyright (C) 2008 Jean-Francois Moine (http://moinejf.free.fr)
6 * (This module is adapted from the ov51x-jpeg package)
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 #define MODULE_NAME "ov519"
27 MODULE_AUTHOR("Jean-Francois Moine <http://moinejf.free.fr>");
28 MODULE_DESCRIPTION("OV519 USB Camera Driver");
29 MODULE_LICENSE("GPL");
31 /* global parameters */
32 static int frame_rate;
34 /* Number of times to retry a failed I2C transaction. Increase this if you
35 * are getting "Failed to read sensor ID..." */
36 static int i2c_detect_tries = 10;
38 /* ov519 device descriptor */
40 struct gspca_dev gspca_dev; /* !! must be the first item */
42 /* Determined by sensor type */
51 __u8 stopped; /* Streaming is temporarily paused */
53 __u8 frame_rate; /* current Framerate (OV519 only) */
54 __u8 clockdiv; /* clockdiv override for OV519 only */
56 char sensor; /* Type of image sensor chip (SEN_*) */
68 /* V4L2 controls supported by the driver */
69 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
70 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
71 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val);
72 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val);
73 static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val);
74 static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val);
75 static int sd_sethflip(struct gspca_dev *gspca_dev, __s32 val);
76 static int sd_gethflip(struct gspca_dev *gspca_dev, __s32 *val);
77 static int sd_setvflip(struct gspca_dev *gspca_dev, __s32 val);
78 static int sd_getvflip(struct gspca_dev *gspca_dev, __s32 *val);
80 static struct ctrl sd_ctrls[] = {
83 .id = V4L2_CID_BRIGHTNESS,
84 .type = V4L2_CTRL_TYPE_INTEGER,
89 #define BRIGHTNESS_DEF 127
90 .default_value = BRIGHTNESS_DEF,
92 .set = sd_setbrightness,
93 .get = sd_getbrightness,
97 .id = V4L2_CID_CONTRAST,
98 .type = V4L2_CTRL_TYPE_INTEGER,
103 #define CONTRAST_DEF 127
104 .default_value = CONTRAST_DEF,
106 .set = sd_setcontrast,
107 .get = sd_getcontrast,
111 .id = V4L2_CID_SATURATION,
112 .type = V4L2_CTRL_TYPE_INTEGER,
117 #define COLOR_DEF 127
118 .default_value = COLOR_DEF,
123 /* next controls work with ov7670 only */
127 .id = V4L2_CID_HFLIP,
128 .type = V4L2_CTRL_TYPE_BOOLEAN,
134 .default_value = HFLIP_DEF,
142 .id = V4L2_CID_VFLIP,
143 .type = V4L2_CTRL_TYPE_BOOLEAN,
149 .default_value = VFLIP_DEF,
156 static struct v4l2_pix_format vga_mode[] = {
157 {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
159 .sizeimage = 320 * 240 * 3 / 8 + 590,
160 .colorspace = V4L2_COLORSPACE_JPEG,
162 {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
164 .sizeimage = 640 * 480 * 3 / 8 + 590,
165 .colorspace = V4L2_COLORSPACE_JPEG,
168 static struct v4l2_pix_format sif_mode[] = {
169 {176, 144, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
171 .sizeimage = 176 * 144 * 3 / 8 + 590,
172 .colorspace = V4L2_COLORSPACE_JPEG,
174 {352, 288, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
176 .sizeimage = 352 * 288 * 3 / 8 + 590,
177 .colorspace = V4L2_COLORSPACE_JPEG,
181 /* OV519 Camera interface register numbers */
182 #define OV519_R10_H_SIZE 0x10
183 #define OV519_R11_V_SIZE 0x11
184 #define OV519_R12_X_OFFSETL 0x12
185 #define OV519_R13_X_OFFSETH 0x13
186 #define OV519_R14_Y_OFFSETL 0x14
187 #define OV519_R15_Y_OFFSETH 0x15
188 #define OV519_R16_DIVIDER 0x16
189 #define OV519_R20_DFR 0x20
190 #define OV519_R25_FORMAT 0x25
192 /* OV519 System Controller register numbers */
193 #define OV519_SYS_RESET1 0x51
194 #define OV519_SYS_EN_CLK1 0x54
196 #define OV519_GPIO_DATA_OUT0 0x71
197 #define OV519_GPIO_IO_CTRL0 0x72
199 #define OV511_ENDPOINT_ADDRESS 1 /* Isoc endpoint number */
202 #define R51x_I2C_W_SID 0x41
203 #define R51x_I2C_SADDR_3 0x42
204 #define R51x_I2C_SADDR_2 0x43
205 #define R51x_I2C_R_SID 0x44
206 #define R51x_I2C_DATA 0x45
207 #define R518_I2C_CTL 0x47 /* OV518(+) only */
210 #define OV7xx0_SID 0x42
211 #define OV8xx0_SID 0xa0
212 #define OV6xx0_SID 0xc0
214 /* OV7610 registers */
215 #define OV7610_REG_GAIN 0x00 /* gain setting (5:0) */
216 #define OV7610_REG_SAT 0x03 /* saturation */
217 #define OV8610_REG_HUE 0x04 /* 04 reserved */
218 #define OV7610_REG_CNT 0x05 /* Y contrast */
219 #define OV7610_REG_BRT 0x06 /* Y brightness */
220 #define OV7610_REG_COM_C 0x14 /* misc common regs */
221 #define OV7610_REG_ID_HIGH 0x1c /* manufacturer ID MSB */
222 #define OV7610_REG_ID_LOW 0x1d /* manufacturer ID LSB */
223 #define OV7610_REG_COM_I 0x29 /* misc settings */
225 /* OV7670 registers */
226 #define OV7670_REG_GAIN 0x00 /* Gain lower 8 bits (rest in vref) */
227 #define OV7670_REG_BLUE 0x01 /* blue gain */
228 #define OV7670_REG_RED 0x02 /* red gain */
229 #define OV7670_REG_VREF 0x03 /* Pieces of GAIN, VSTART, VSTOP */
230 #define OV7670_REG_COM1 0x04 /* Control 1 */
231 #define OV7670_REG_AECHH 0x07 /* AEC MS 5 bits */
232 #define OV7670_REG_COM3 0x0c /* Control 3 */
233 #define OV7670_REG_COM4 0x0d /* Control 4 */
234 #define OV7670_REG_COM5 0x0e /* All "reserved" */
235 #define OV7670_REG_COM6 0x0f /* Control 6 */
236 #define OV7670_REG_AECH 0x10 /* More bits of AEC value */
237 #define OV7670_REG_CLKRC 0x11 /* Clock control */
238 #define OV7670_REG_COM7 0x12 /* Control 7 */
239 #define OV7670_COM7_FMT_VGA 0x00
240 #define OV7670_COM7_YUV 0x00 /* YUV */
241 #define OV7670_COM7_FMT_QVGA 0x10 /* QVGA format */
242 #define OV7670_COM7_FMT_MASK 0x38
243 #define OV7670_COM7_RESET 0x80 /* Register reset */
244 #define OV7670_REG_COM8 0x13 /* Control 8 */
245 #define OV7670_COM8_AEC 0x01 /* Auto exposure enable */
246 #define OV7670_COM8_AWB 0x02 /* White balance enable */
247 #define OV7670_COM8_AGC 0x04 /* Auto gain enable */
248 #define OV7670_COM8_BFILT 0x20 /* Band filter enable */
249 #define OV7670_COM8_AECSTEP 0x40 /* Unlimited AEC step size */
250 #define OV7670_COM8_FASTAEC 0x80 /* Enable fast AGC/AEC */
251 #define OV7670_REG_COM9 0x14 /* Control 9 - gain ceiling */
252 #define OV7670_REG_COM10 0x15 /* Control 10 */
253 #define OV7670_REG_HSTART 0x17 /* Horiz start high bits */
254 #define OV7670_REG_HSTOP 0x18 /* Horiz stop high bits */
255 #define OV7670_REG_VSTART 0x19 /* Vert start high bits */
256 #define OV7670_REG_VSTOP 0x1a /* Vert stop high bits */
257 #define OV7670_REG_MVFP 0x1e /* Mirror / vflip */
258 #define OV7670_MVFP_VFLIP 0x10 /* vertical flip */
259 #define OV7670_MVFP_MIRROR 0x20 /* Mirror image */
260 #define OV7670_REG_AEW 0x24 /* AGC upper limit */
261 #define OV7670_REG_AEB 0x25 /* AGC lower limit */
262 #define OV7670_REG_VPT 0x26 /* AGC/AEC fast mode op region */
263 #define OV7670_REG_HREF 0x32 /* HREF pieces */
264 #define OV7670_REG_TSLB 0x3a /* lots of stuff */
265 #define OV7670_REG_COM11 0x3b /* Control 11 */
266 #define OV7670_COM11_EXP 0x02
267 #define OV7670_COM11_HZAUTO 0x10 /* Auto detect 50/60 Hz */
268 #define OV7670_REG_COM12 0x3c /* Control 12 */
269 #define OV7670_REG_COM13 0x3d /* Control 13 */
270 #define OV7670_COM13_GAMMA 0x80 /* Gamma enable */
271 #define OV7670_COM13_UVSAT 0x40 /* UV saturation auto adjustment */
272 #define OV7670_REG_COM14 0x3e /* Control 14 */
273 #define OV7670_REG_EDGE 0x3f /* Edge enhancement factor */
274 #define OV7670_REG_COM15 0x40 /* Control 15 */
275 #define OV7670_COM15_R00FF 0xc0 /* 00 to FF */
276 #define OV7670_REG_COM16 0x41 /* Control 16 */
277 #define OV7670_COM16_AWBGAIN 0x08 /* AWB gain enable */
278 #define OV7670_REG_BRIGHT 0x55 /* Brightness */
279 #define OV7670_REG_CONTRAS 0x56 /* Contrast control */
280 #define OV7670_REG_GFIX 0x69 /* Fix gain control */
281 #define OV7670_REG_RGB444 0x8c /* RGB 444 control */
282 #define OV7670_REG_HAECC1 0x9f /* Hist AEC/AGC control 1 */
283 #define OV7670_REG_HAECC2 0xa0 /* Hist AEC/AGC control 2 */
284 #define OV7670_REG_BD50MAX 0xa5 /* 50hz banding step limit */
285 #define OV7670_REG_HAECC3 0xa6 /* Hist AEC/AGC control 3 */
286 #define OV7670_REG_HAECC4 0xa7 /* Hist AEC/AGC control 4 */
287 #define OV7670_REG_HAECC5 0xa8 /* Hist AEC/AGC control 5 */
288 #define OV7670_REG_HAECC6 0xa9 /* Hist AEC/AGC control 6 */
289 #define OV7670_REG_HAECC7 0xaa /* Hist AEC/AGC control 7 */
290 #define OV7670_REG_BD60MAX 0xab /* 60hz banding step limit */
296 struct ov_i2c_regvals {
301 static const struct ov_i2c_regvals norm_6x20[] = {
302 { 0x12, 0x80 }, /* reset */
305 { 0x05, 0x7f }, /* For when autoadjust is off */
307 /* The ratio of 0x0c and 0x0d controls the white point */
310 { 0x0f, 0x15 }, /* COMS */
311 { 0x10, 0x75 }, /* AEC Exposure time */
312 { 0x12, 0x24 }, /* Enable AGC */
314 /* 0x16: 0x06 helps frame stability with moving objects */
316 /* { 0x20, 0x30 }, * Aperture correction enable */
317 { 0x26, 0xb2 }, /* BLC enable */
318 /* 0x28: 0x05 Selects RGB format if RGB on */
320 { 0x2a, 0x04 }, /* Disable framerate adjust */
321 /* { 0x2b, 0xac }, * Framerate; Set 2a[7] first */
323 { 0x33, 0xa0 }, /* Color Processing Parameter */
324 { 0x34, 0xd2 }, /* Max A/D range */
328 { 0x3c, 0x39 }, /* Enable AEC mode changing */
329 { 0x3c, 0x3c }, /* Change AEC mode */
330 { 0x3c, 0x24 }, /* Disable AEC mode changing */
333 /* These next two registers (0x4a, 0x4b) are undocumented.
334 * They control the color balance */
337 { 0x4d, 0xd2 }, /* This reduces noise a bit */
340 /* Do 50-53 have any effect? */
341 /* Toggle 0x12[2] off and on here? */
344 static const struct ov_i2c_regvals norm_6x30[] = {
345 { 0x12, 0x80 }, /* Reset */
346 { 0x00, 0x1f }, /* Gain */
347 { 0x01, 0x99 }, /* Blue gain */
348 { 0x02, 0x7c }, /* Red gain */
349 { 0x03, 0xc0 }, /* Saturation */
350 { 0x05, 0x0a }, /* Contrast */
351 { 0x06, 0x95 }, /* Brightness */
352 { 0x07, 0x2d }, /* Sharpness */
358 { 0x11, 0x00 }, /* Pixel clock = fastest */
359 { 0x12, 0x24 }, /* Enable AGC and AWB */
374 { 0x23, 0xc0 }, /* Crystal circuit power level */
375 { 0x25, 0x9a }, /* Increase AEC black ratio */
376 { 0x26, 0xb2 }, /* BLC enable */
380 { 0x2a, 0x84 }, /* 60 Hz power */
381 { 0x2b, 0xa8 }, /* 60 Hz power */
383 { 0x2d, 0x95 }, /* Enable auto-brightness */
397 { 0x40, 0x00 }, /* White bal */
398 { 0x41, 0x00 }, /* White bal */
400 { 0x43, 0x3f }, /* White bal */
410 { 0x4d, 0x10 }, /* U = 0.563u, V = 0.714v */
412 { 0x4f, 0x07 }, /* UV avg., col. killer: max */
414 { 0x54, 0x23 }, /* Max AGC gain: 18dB */
419 { 0x59, 0x01 }, /* AGC dark current comp.: +1 */
421 { 0x5b, 0x0f }, /* AWB chrominance levels */
425 { 0x12, 0x20 }, /* Toggle AWB */
429 /* Lawrence Glaister <lg@jfm.bc.ca> reports:
431 * Register 0x0f in the 7610 has the following effects:
433 * 0x85 (AEC method 1): Best overall, good contrast range
434 * 0x45 (AEC method 2): Very overexposed
435 * 0xa5 (spec sheet default): Ok, but the black level is
436 * shifted resulting in loss of contrast
437 * 0x05 (old driver setting): very overexposed, too much
440 static const struct ov_i2c_regvals norm_7610[] = {
447 { 0x28, 0x24 }, /* 0c */
448 { 0x0f, 0x85 }, /* lg's setting */
470 static const struct ov_i2c_regvals norm_7620[] = {
471 { 0x00, 0x00 }, /* gain */
472 { 0x01, 0x80 }, /* blue gain */
473 { 0x02, 0x80 }, /* red gain */
474 { 0x03, 0xc0 }, /* OV7670_REG_VREF */
536 /* 7640 and 7648. The defaults should be OK for most registers. */
537 static const struct ov_i2c_regvals norm_7640[] = {
542 /* 7670. Defaults taken from OmniVision provided data,
543 * as provided by Jonathan Corbet of OLPC */
544 static const struct ov_i2c_regvals norm_7670[] = {
545 { OV7670_REG_COM7, OV7670_COM7_RESET },
546 { OV7670_REG_TSLB, 0x04 }, /* OV */
547 { OV7670_REG_COM7, OV7670_COM7_FMT_VGA }, /* VGA */
548 { OV7670_REG_CLKRC, 0x01 },
550 * Set the hardware window. These values from OV don't entirely
551 * make sense - hstop is less than hstart. But they work...
553 { OV7670_REG_HSTART, 0x13 },
554 { OV7670_REG_HSTOP, 0x01 },
555 { OV7670_REG_HREF, 0xb6 },
556 { OV7670_REG_VSTART, 0x02 },
557 { OV7670_REG_VSTOP, 0x7a },
558 { OV7670_REG_VREF, 0x0a },
560 { OV7670_REG_COM3, 0x00 },
561 { OV7670_REG_COM14, 0x00 },
562 /* Mystery scaling numbers */
568 /* { OV7670_REG_COM10, 0x0 }, */
570 /* Gamma curve values */
588 /* AGC and AEC parameters. Note we start by disabling those features,
589 then turn them only after tweaking the values. */
590 { OV7670_REG_COM8, OV7670_COM8_FASTAEC
591 | OV7670_COM8_AECSTEP
592 | OV7670_COM8_BFILT },
593 { OV7670_REG_GAIN, 0x00 },
594 { OV7670_REG_AECH, 0x00 },
595 { OV7670_REG_COM4, 0x40 }, /* magic reserved bit */
596 { OV7670_REG_COM9, 0x18 }, /* 4x gain + magic rsvd bit */
597 { OV7670_REG_BD50MAX, 0x05 },
598 { OV7670_REG_BD60MAX, 0x07 },
599 { OV7670_REG_AEW, 0x95 },
600 { OV7670_REG_AEB, 0x33 },
601 { OV7670_REG_VPT, 0xe3 },
602 { OV7670_REG_HAECC1, 0x78 },
603 { OV7670_REG_HAECC2, 0x68 },
604 { 0xa1, 0x03 }, /* magic */
605 { OV7670_REG_HAECC3, 0xd8 },
606 { OV7670_REG_HAECC4, 0xd8 },
607 { OV7670_REG_HAECC5, 0xf0 },
608 { OV7670_REG_HAECC6, 0x90 },
609 { OV7670_REG_HAECC7, 0x94 },
610 { OV7670_REG_COM8, OV7670_COM8_FASTAEC
611 | OV7670_COM8_AECSTEP
616 /* Almost all of these are magic "reserved" values. */
617 { OV7670_REG_COM5, 0x61 },
618 { OV7670_REG_COM6, 0x4b },
620 { OV7670_REG_MVFP, 0x07 },
629 { OV7670_REG_COM12, 0x78 },
632 { OV7670_REG_GFIX, 0x00 },
648 /* More reserved magic, some of which tweaks white balance */
665 /* "9e for advance AWB" */
667 { OV7670_REG_BLUE, 0x40 },
668 { OV7670_REG_RED, 0x60 },
669 { OV7670_REG_COM8, OV7670_COM8_FASTAEC
670 | OV7670_COM8_AECSTEP
676 /* Matrix coefficients */
685 { OV7670_REG_COM16, OV7670_COM16_AWBGAIN },
686 { OV7670_REG_EDGE, 0x00 },
691 { OV7670_REG_COM13, OV7670_COM13_GAMMA
696 { OV7670_REG_COM16, 0x38 },
700 { OV7670_REG_COM11, OV7670_COM11_EXP|OV7670_COM11_HZAUTO },
713 /* Extra-weird stuff. Some sort of multiplexor register */
739 static const struct ov_i2c_regvals norm_8610[] = {
746 { 0x05, 0x30 }, /* was 0x10, new from windrv 090403 */
747 { 0x06, 0x70 }, /* was 0x80, new from windrv 090403 */
756 { 0x15, 0x01 }, /* Lin and Win think different about UV order */
758 { 0x17, 0x38 }, /* was 0x2f, new from windrv 090403 */
759 { 0x18, 0xea }, /* was 0xcf, new from windrv 090403 */
760 { 0x19, 0x02 }, /* was 0x06, new from windrv 090403 */
763 { 0x20, 0xd0 }, /* was 0x90, new from windrv 090403 */
764 { 0x23, 0xc0 }, /* was 0x00, new from windrv 090403 */
765 { 0x24, 0x30 }, /* was 0x1d, new from windrv 090403 */
766 { 0x25, 0x50 }, /* was 0x57, new from windrv 090403 */
772 { 0x2b, 0xc8 }, /* was 0xcc, new from windrv 090403 */
774 { 0x2d, 0x45 }, /* was 0xd5, new from windrv 090403 */
776 { 0x2f, 0x14 }, /* was 0x01, new from windrv 090403 */
778 { 0x4d, 0x30 }, /* was 0x10, new from windrv 090403 */
779 { 0x60, 0x02 }, /* was 0x01, new from windrv 090403 */
780 { 0x61, 0x00 }, /* was 0x09, new from windrv 090403 */
781 { 0x62, 0x5f }, /* was 0xd7, new from windrv 090403 */
783 { 0x64, 0x53 }, /* new windrv 090403 says 0x57,
784 * maybe thats wrong */
788 { 0x68, 0xc0 }, /* was 0xaf, new from windrv 090403 */
792 { 0x6c, 0x99 }, /* was 0x80, old windrv says 0x00, but
793 * deleting bit7 colors the first images red */
794 { 0x6d, 0x11 }, /* was 0x00, new from windrv 090403 */
795 { 0x6e, 0x11 }, /* was 0x00, new from windrv 090403 */
801 { 0x74, 0x00 },/* 0x60? - was 0x00, new from windrv 090403 */
803 { 0x76, 0x02 }, /* was 0x02, new from windrv 090403 */
808 { 0x7b, 0x10 }, /* was 0x13, new from windrv 090403 */
810 { 0x7d, 0x08 }, /* was 0x09, new from windrv 090403 */
811 { 0x7e, 0x08 }, /* was 0xc0, new from windrv 090403 */
818 { 0x85, 0x62 }, /* was 0x61, new from windrv 090403 */
824 { 0x12, 0x25 }, /* was 0x24, new from windrv 090403 */
827 static unsigned char ov7670_abs_to_sm(unsigned char v)
831 return (128 - v) | 0x80;
834 /* Write a OV519 register */
835 static int reg_w(struct sd *sd, __u16 index, __u8 value)
839 sd->gspca_dev.usb_buf[0] = value;
840 ret = usb_control_msg(sd->gspca_dev.dev,
841 usb_sndctrlpipe(sd->gspca_dev.dev, 0),
842 1, /* REQ_IO (ov518/519) */
843 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
845 sd->gspca_dev.usb_buf, 1, 500);
847 PDEBUG(D_ERR, "Write reg [%02x] %02x failed", index, value);
851 /* Read from a OV519 register */
852 /* returns: negative is error, pos or zero is data */
853 static int reg_r(struct sd *sd, __u16 index)
857 ret = usb_control_msg(sd->gspca_dev.dev,
858 usb_rcvctrlpipe(sd->gspca_dev.dev, 0),
860 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
861 0, index, sd->gspca_dev.usb_buf, 1, 500);
864 ret = sd->gspca_dev.usb_buf[0];
866 PDEBUG(D_ERR, "Read reg [0x%02x] failed", index);
870 /* Read 8 values from a OV519 register */
871 static int reg_r8(struct sd *sd,
876 ret = usb_control_msg(sd->gspca_dev.dev,
877 usb_rcvctrlpipe(sd->gspca_dev.dev, 0),
879 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
880 0, index, sd->gspca_dev.usb_buf, 8, 500);
883 ret = sd->gspca_dev.usb_buf[0];
885 PDEBUG(D_ERR, "Read reg 8 [0x%02x] failed", index);
890 * Writes bits at positions specified by mask to an OV51x reg. Bits that are in
891 * the same position as 1's in "mask" are cleared and set to "value". Bits
892 * that are in the same position as 0's in "mask" are preserved, regardless
893 * of their respective state in "value".
895 static int reg_w_mask(struct sd *sd,
904 value &= mask; /* Enforce mask on value */
905 ret = reg_r(sd, index);
909 oldval = ret & ~mask; /* Clear the masked bits */
910 value |= oldval; /* Set the desired bits */
912 return reg_w(sd, index, value);
916 * The OV518 I2C I/O procedure is different, hence, this function.
917 * This is normally only called from i2c_w(). Note that this function
918 * always succeeds regardless of whether the sensor is present and working.
920 static int i2c_w(struct sd *sd,
926 PDEBUG(D_USBO, "i2c 0x%02x -> [0x%02x]", value, reg);
928 /* Select camera register */
929 rc = reg_w(sd, R51x_I2C_SADDR_3, reg);
933 /* Write "value" to I2C data port of OV511 */
934 rc = reg_w(sd, R51x_I2C_DATA, value);
938 /* Initiate 3-byte write cycle */
939 rc = reg_w(sd, R518_I2C_CTL, 0x01);
943 /* wait for write complete */
945 return reg_r8(sd, R518_I2C_CTL);
949 * returns: negative is error, pos or zero is data
951 * The OV518 I2C I/O procedure is different, hence, this function.
952 * This is normally only called from i2c_r(). Note that this function
953 * always succeeds regardless of whether the sensor is present and working.
955 static int i2c_r(struct sd *sd, __u8 reg)
959 /* Select camera register */
960 rc = reg_w(sd, R51x_I2C_SADDR_2, reg);
964 /* Initiate 2-byte write cycle */
965 rc = reg_w(sd, R518_I2C_CTL, 0x03);
969 /* Initiate 2-byte read cycle */
970 rc = reg_w(sd, R518_I2C_CTL, 0x05);
973 value = reg_r(sd, R51x_I2C_DATA);
974 PDEBUG(D_USBI, "i2c [0x%02X] -> 0x%02X", reg, value);
978 /* Writes bits at positions specified by mask to an I2C reg. Bits that are in
979 * the same position as 1's in "mask" are cleared and set to "value". Bits
980 * that are in the same position as 0's in "mask" are preserved, regardless
981 * of their respective state in "value".
983 static int i2c_w_mask(struct sd *sd,
991 value &= mask; /* Enforce mask on value */
995 oldval = rc & ~mask; /* Clear the masked bits */
996 value |= oldval; /* Set the desired bits */
997 return i2c_w(sd, reg, value);
1000 /* Temporarily stops OV511 from functioning. Must do this before changing
1001 * registers while the camera is streaming */
1002 static inline int ov51x_stop(struct sd *sd)
1004 PDEBUG(D_STREAM, "stopping");
1006 return reg_w(sd, OV519_SYS_RESET1, 0x0f);
1009 /* Restarts OV511 after ov511_stop() is called. Has no effect if it is not
1010 * actually stopped (for performance). */
1011 static inline int ov51x_restart(struct sd *sd)
1013 PDEBUG(D_STREAM, "restarting");
1018 /* Reinitialize the stream */
1019 return reg_w(sd, OV519_SYS_RESET1, 0x00);
1022 /* This does an initial reset of an OmniVision sensor and ensures that I2C
1023 * is synchronized. Returns <0 on failure.
1025 static int init_ov_sensor(struct sd *sd)
1029 /* Reset the sensor */
1030 if (i2c_w(sd, 0x12, 0x80) < 0)
1033 /* Wait for it to initialize */
1036 for (i = 0; i < i2c_detect_tries; i++) {
1037 if (i2c_r(sd, OV7610_REG_ID_HIGH) == 0x7f &&
1038 i2c_r(sd, OV7610_REG_ID_LOW) == 0xa2) {
1039 PDEBUG(D_PROBE, "I2C synced in %d attempt(s)", i);
1043 /* Reset the sensor */
1044 if (i2c_w(sd, 0x12, 0x80) < 0)
1046 /* Wait for it to initialize */
1048 /* Dummy read to sync I2C */
1049 if (i2c_r(sd, 0x00) < 0)
1055 /* Set the read and write slave IDs. The "slave" argument is the write slave,
1056 * and the read slave will be set to (slave + 1).
1057 * This should not be called from outside the i2c I/O functions.
1058 * Sets I2C read and write slave IDs. Returns <0 for error
1060 static int ov51x_set_slave_ids(struct sd *sd,
1065 rc = reg_w(sd, R51x_I2C_W_SID, slave);
1068 return reg_w(sd, R51x_I2C_R_SID, slave + 1);
1071 static int write_regvals(struct sd *sd,
1072 const struct ov_regvals *regvals,
1078 rc = reg_w(sd, regvals->reg, regvals->val);
1086 static int write_i2c_regvals(struct sd *sd,
1087 const struct ov_i2c_regvals *regvals,
1093 rc = i2c_w(sd, regvals->reg, regvals->val);
1101 /****************************************************************************
1103 * OV511 and sensor configuration
1105 ***************************************************************************/
1107 /* This initializes the OV8110, OV8610 sensor. The OV8110 uses
1108 * the same register settings as the OV8610, since they are very similar.
1110 static int ov8xx0_configure(struct sd *sd)
1114 PDEBUG(D_PROBE, "starting ov8xx0 configuration");
1116 /* Detect sensor (sub)type */
1117 rc = i2c_r(sd, OV7610_REG_COM_I);
1119 PDEBUG(D_ERR, "Error detecting sensor type");
1122 if ((rc & 3) == 1) {
1123 sd->sensor = SEN_OV8610;
1125 PDEBUG(D_ERR, "Unknown image sensor version: %d", rc & 3);
1129 /* Set sensor-specific vars */
1130 /* sd->sif = 0; already done */
1134 /* This initializes the OV7610, OV7620, or OV76BE sensor. The OV76BE uses
1135 * the same register settings as the OV7610, since they are very similar.
1137 static int ov7xx0_configure(struct sd *sd)
1142 PDEBUG(D_PROBE, "starting OV7xx0 configuration");
1144 /* Detect sensor (sub)type */
1145 rc = i2c_r(sd, OV7610_REG_COM_I);
1148 * it appears to be wrongly detected as a 7610 by default */
1150 PDEBUG(D_ERR, "Error detecting sensor type");
1153 if ((rc & 3) == 3) {
1154 /* quick hack to make OV7670s work */
1155 high = i2c_r(sd, 0x0a);
1156 low = i2c_r(sd, 0x0b);
1157 /* info("%x, %x", high, low); */
1158 if (high == 0x76 && low == 0x73) {
1159 PDEBUG(D_PROBE, "Sensor is an OV7670");
1160 sd->sensor = SEN_OV7670;
1162 PDEBUG(D_PROBE, "Sensor is an OV7610");
1163 sd->sensor = SEN_OV7610;
1165 } else if ((rc & 3) == 1) {
1166 /* I don't know what's different about the 76BE yet. */
1167 if (i2c_r(sd, 0x15) & 1)
1168 PDEBUG(D_PROBE, "Sensor is an OV7620AE");
1170 PDEBUG(D_PROBE, "Sensor is an OV76BE");
1172 /* OV511+ will return all zero isoc data unless we
1173 * configure the sensor as a 7620. Someone needs to
1174 * find the exact reg. setting that causes this. */
1175 sd->sensor = SEN_OV76BE;
1176 } else if ((rc & 3) == 0) {
1177 /* try to read product id registers */
1178 high = i2c_r(sd, 0x0a);
1180 PDEBUG(D_ERR, "Error detecting camera chip PID");
1183 low = i2c_r(sd, 0x0b);
1185 PDEBUG(D_ERR, "Error detecting camera chip VER");
1191 PDEBUG(D_PROBE, "Sensor is an OV7630/OV7635");
1193 "7630 is not supported by this driver");
1196 PDEBUG(D_PROBE, "Sensor is an OV7645");
1197 sd->sensor = SEN_OV7640; /* FIXME */
1200 PDEBUG(D_PROBE, "Sensor is an OV7645B");
1201 sd->sensor = SEN_OV7640; /* FIXME */
1204 PDEBUG(D_PROBE, "Sensor is an OV7648");
1205 sd->sensor = SEN_OV7640; /* FIXME */
1208 PDEBUG(D_PROBE, "Unknown sensor: 0x76%x", low);
1212 PDEBUG(D_PROBE, "Sensor is an OV7620");
1213 sd->sensor = SEN_OV7620;
1216 PDEBUG(D_ERR, "Unknown image sensor version: %d", rc & 3);
1220 /* Set sensor-specific vars */
1221 /* sd->sif = 0; already done */
1225 /* This initializes the OV6620, OV6630, OV6630AE, or OV6630AF sensor. */
1226 static int ov6xx0_configure(struct sd *sd)
1229 PDEBUG(D_PROBE, "starting OV6xx0 configuration");
1231 /* Detect sensor (sub)type */
1232 rc = i2c_r(sd, OV7610_REG_COM_I);
1234 PDEBUG(D_ERR, "Error detecting sensor type");
1238 /* Ugh. The first two bits are the version bits, but
1239 * the entire register value must be used. I guess OVT
1240 * underestimated how many variants they would make. */
1243 sd->sensor = SEN_OV6630;
1245 "WARNING: Sensor is an OV66308. Your camera may have");
1246 PDEBUG(D_ERR, "been misdetected in previous driver versions.");
1249 sd->sensor = SEN_OV6620;
1252 sd->sensor = SEN_OV6630;
1253 PDEBUG(D_PROBE, "Sensor is an OV66308AE");
1256 sd->sensor = SEN_OV6630;
1257 PDEBUG(D_PROBE, "Sensor is an OV66308AF");
1260 sd->sensor = SEN_OV6630;
1262 "WARNING: Sensor is an OV66307. Your camera may have");
1263 PDEBUG(D_ERR, "been misdetected in previous driver versions.");
1266 PDEBUG(D_ERR, "FATAL: Unknown sensor version: 0x%02x", rc);
1270 /* Set sensor-specific vars */
1276 /* Turns on or off the LED. Only has an effect with OV511+/OV518(+)/OV519 */
1277 static void ov51x_led_control(struct sd *sd, int on)
1279 reg_w_mask(sd, OV519_GPIO_DATA_OUT0, !on, 1); /* 0 / 1 */
1282 /* this function is called at probe time */
1283 static int sd_config(struct gspca_dev *gspca_dev,
1284 const struct usb_device_id *id)
1286 struct sd *sd = (struct sd *) gspca_dev;
1289 static const struct ov_regvals init_519[] = {
1290 { 0x5a, 0x6d }, /* EnableSystem */
1292 { 0x54, 0xff }, /* set bit2 to enable jpeg */
1296 /* Set LED pin to output mode. Bit 4 must be cleared or sensor
1297 * detection will fail. This deserves further investigation. */
1298 { OV519_GPIO_IO_CTRL0, 0xee },
1299 { 0x51, 0x0f }, /* SetUsbInit */
1302 /* windows reads 0x55 at this point*/
1305 if (write_regvals(sd, init_519, ARRAY_SIZE(init_519)))
1307 ov51x_led_control(sd, 0); /* turn LED off */
1310 if (ov51x_set_slave_ids(sd, OV7xx0_SID) < 0)
1313 /* The OV519 must be more aggressive about sensor detection since
1314 * I2C write will never fail if the sensor is not present. We have
1315 * to try to initialize the sensor to detect its presence */
1316 if (init_ov_sensor(sd) >= 0) {
1317 if (ov7xx0_configure(sd) < 0) {
1318 PDEBUG(D_ERR, "Failed to configure OV7xx0");
1324 if (ov51x_set_slave_ids(sd, OV6xx0_SID) < 0)
1327 if (init_ov_sensor(sd) >= 0) {
1328 if (ov6xx0_configure(sd) < 0) {
1329 PDEBUG(D_ERR, "Failed to configure OV6xx0");
1335 if (ov51x_set_slave_ids(sd, OV8xx0_SID) < 0)
1338 if (init_ov_sensor(sd) < 0) {
1340 "Can't determine sensor slave IDs");
1343 if (ov8xx0_configure(sd) < 0) {
1345 "Failed to configure OV8xx0 sensor");
1351 cam = &gspca_dev->cam;
1352 cam->epaddr = OV511_ENDPOINT_ADDRESS;
1354 cam->cam_mode = vga_mode;
1355 cam->nmodes = ARRAY_SIZE(vga_mode);
1357 cam->cam_mode = sif_mode;
1358 cam->nmodes = ARRAY_SIZE(sif_mode);
1360 sd->brightness = BRIGHTNESS_DEF;
1361 sd->contrast = CONTRAST_DEF;
1362 sd->colors = COLOR_DEF;
1363 sd->hflip = HFLIP_DEF;
1364 sd->vflip = VFLIP_DEF;
1365 if (sd->sensor != SEN_OV7670)
1366 gspca_dev->ctrl_dis = (1 << HFLIP_IDX)
1370 PDEBUG(D_ERR, "OV519 Config failed");
1374 /* this function is called at probe and resume time */
1375 static int sd_init(struct gspca_dev *gspca_dev)
1377 struct sd *sd = (struct sd *) gspca_dev;
1379 /* initialize the sensor */
1380 switch (sd->sensor) {
1382 if (write_i2c_regvals(sd, norm_6x20, ARRAY_SIZE(norm_6x20)))
1386 if (write_i2c_regvals(sd, norm_6x30, ARRAY_SIZE(norm_6x30)))
1390 /* case SEN_OV7610: */
1391 /* case SEN_OV76BE: */
1392 if (write_i2c_regvals(sd, norm_7610, ARRAY_SIZE(norm_7610)))
1396 if (write_i2c_regvals(sd, norm_7620, ARRAY_SIZE(norm_7620)))
1400 if (write_i2c_regvals(sd, norm_7640, ARRAY_SIZE(norm_7640)))
1404 if (write_i2c_regvals(sd, norm_7670, ARRAY_SIZE(norm_7670)))
1408 if (write_i2c_regvals(sd, norm_8610, ARRAY_SIZE(norm_8610)))
1415 /* Sets up the OV519 with the given image parameters
1417 * OV519 needs a completely different approach, until we can figure out what
1418 * the individual registers do.
1420 * Do not put any sensor-specific code in here (including I2C I/O functions)
1422 static int ov519_mode_init_regs(struct sd *sd)
1424 static const struct ov_regvals mode_init_519_ov7670[] = {
1425 { 0x5d, 0x03 }, /* Turn off suspend mode */
1426 { 0x53, 0x9f }, /* was 9b in 1.65-1.08 */
1427 { 0x54, 0x0f }, /* bit2 (jpeg enable) */
1428 { 0xa2, 0x20 }, /* a2-a5 are undocumented */
1432 { 0x37, 0x00 }, /* SetUsbInit */
1433 { 0x55, 0x02 }, /* 4.096 Mhz audio clock */
1434 /* Enable both fields, YUV Input, disable defect comp (why?) */
1438 { 0x17, 0x50 }, /* undocumented */
1439 { 0x37, 0x00 }, /* undocumented */
1440 { 0x40, 0xff }, /* I2C timeout counter */
1441 { 0x46, 0x00 }, /* I2C clock prescaler */
1442 { 0x59, 0x04 }, /* new from windrv 090403 */
1443 { 0xff, 0x00 }, /* undocumented */
1444 /* windows reads 0x55 at this point, why? */
1447 static const struct ov_regvals mode_init_519[] = {
1448 { 0x5d, 0x03 }, /* Turn off suspend mode */
1449 { 0x53, 0x9f }, /* was 9b in 1.65-1.08 */
1450 { 0x54, 0x0f }, /* bit2 (jpeg enable) */
1451 { 0xa2, 0x20 }, /* a2-a5 are undocumented */
1455 { 0x37, 0x00 }, /* SetUsbInit */
1456 { 0x55, 0x02 }, /* 4.096 Mhz audio clock */
1457 /* Enable both fields, YUV Input, disable defect comp (why?) */
1459 { 0x17, 0x50 }, /* undocumented */
1460 { 0x37, 0x00 }, /* undocumented */
1461 { 0x40, 0xff }, /* I2C timeout counter */
1462 { 0x46, 0x00 }, /* I2C clock prescaler */
1463 { 0x59, 0x04 }, /* new from windrv 090403 */
1464 { 0xff, 0x00 }, /* undocumented */
1465 /* windows reads 0x55 at this point, why? */
1468 /******** Set the mode ********/
1469 if (sd->sensor != SEN_OV7670) {
1470 if (write_regvals(sd, mode_init_519,
1471 ARRAY_SIZE(mode_init_519)))
1473 if (sd->sensor == SEN_OV7640) {
1474 /* Select 8-bit input mode */
1475 reg_w_mask(sd, OV519_R20_DFR, 0x10, 0x10);
1478 if (write_regvals(sd, mode_init_519_ov7670,
1479 ARRAY_SIZE(mode_init_519_ov7670)))
1483 reg_w(sd, OV519_R10_H_SIZE, sd->gspca_dev.width >> 4);
1484 reg_w(sd, OV519_R11_V_SIZE, sd->gspca_dev.height >> 3);
1485 reg_w(sd, OV519_R12_X_OFFSETL, 0x00);
1486 reg_w(sd, OV519_R13_X_OFFSETH, 0x00);
1487 reg_w(sd, OV519_R14_Y_OFFSETL, 0x00);
1488 reg_w(sd, OV519_R15_Y_OFFSETH, 0x00);
1489 reg_w(sd, OV519_R16_DIVIDER, 0x00);
1490 reg_w(sd, OV519_R25_FORMAT, 0x03); /* YUV422 */
1491 reg_w(sd, 0x26, 0x00); /* Undocumented */
1493 /******** Set the framerate ********/
1495 sd->frame_rate = frame_rate;
1497 /* FIXME: These are only valid at the max resolution. */
1499 switch (sd->sensor) {
1501 switch (sd->frame_rate) {
1504 reg_w(sd, 0xa4, 0x0c);
1505 reg_w(sd, 0x23, 0xff);
1508 reg_w(sd, 0xa4, 0x0c);
1509 reg_w(sd, 0x23, 0x1f);
1512 reg_w(sd, 0xa4, 0x0c);
1513 reg_w(sd, 0x23, 0x1b);
1516 reg_w(sd, 0xa4, 0x04);
1517 reg_w(sd, 0x23, 0xff);
1521 reg_w(sd, 0xa4, 0x04);
1522 reg_w(sd, 0x23, 0x1f);
1526 reg_w(sd, 0xa4, 0x04);
1527 reg_w(sd, 0x23, 0x1b);
1533 switch (sd->frame_rate) {
1534 default: /* 15 fps */
1536 reg_w(sd, 0xa4, 0x06);
1537 reg_w(sd, 0x23, 0xff);
1540 reg_w(sd, 0xa4, 0x06);
1541 reg_w(sd, 0x23, 0x1f);
1544 reg_w(sd, 0xa4, 0x06);
1545 reg_w(sd, 0x23, 0x1b);
1549 case SEN_OV7670: /* guesses, based on 7640 */
1550 PDEBUG(D_STREAM, "Setting framerate to %d fps",
1551 (sd->frame_rate == 0) ? 15 : sd->frame_rate);
1552 reg_w(sd, 0xa4, 0x10);
1553 switch (sd->frame_rate) {
1555 reg_w(sd, 0x23, 0xff);
1558 reg_w(sd, 0x23, 0x1b);
1562 reg_w(sd, 0x23, 0xff);
1571 static int mode_init_ov_sensor_regs(struct sd *sd)
1573 struct gspca_dev *gspca_dev;
1576 gspca_dev = &sd->gspca_dev;
1577 qvga = gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv;
1579 /******** Mode (VGA/QVGA) and sensor specific regs ********/
1580 switch (sd->sensor) {
1582 /* For OV8610 qvga means qsvga */
1583 i2c_w_mask(sd, OV7610_REG_COM_C, qvga ? (1 << 5) : 0, 1 << 5);
1586 i2c_w_mask(sd, 0x14, qvga ? 0x20 : 0x00, 0x20);
1589 /* i2c_w(sd, 0x2b, 0x00); */
1590 i2c_w_mask(sd, 0x14, qvga ? 0x20 : 0x00, 0x20);
1591 i2c_w_mask(sd, 0x28, qvga ? 0x00 : 0x20, 0x20);
1592 i2c_w(sd, 0x24, qvga ? 0x20 : 0x3a);
1593 i2c_w(sd, 0x25, qvga ? 0x30 : 0x60);
1594 i2c_w_mask(sd, 0x2d, qvga ? 0x40 : 0x00, 0x40);
1595 i2c_w_mask(sd, 0x67, qvga ? 0xf0 : 0x90, 0xf0);
1596 i2c_w_mask(sd, 0x74, qvga ? 0x20 : 0x00, 0x20);
1599 /* i2c_w(sd, 0x2b, 0x00); */
1600 i2c_w_mask(sd, 0x14, qvga ? 0x20 : 0x00, 0x20);
1603 /* i2c_w(sd, 0x2b, 0x00); */
1604 i2c_w_mask(sd, 0x14, qvga ? 0x20 : 0x00, 0x20);
1605 i2c_w_mask(sd, 0x28, qvga ? 0x00 : 0x20, 0x20);
1606 /* i2c_w(sd, 0x24, qvga ? 0x20 : 0x3a); */
1607 /* i2c_w(sd, 0x25, qvga ? 0x30 : 0x60); */
1608 /* i2c_w_mask(sd, 0x2d, qvga ? 0x40 : 0x00, 0x40); */
1609 /* i2c_w_mask(sd, 0x67, qvga ? 0xf0 : 0x90, 0xf0); */
1610 /* i2c_w_mask(sd, 0x74, qvga ? 0x20 : 0x00, 0x20); */
1613 /* set COM7_FMT_VGA or COM7_FMT_QVGA
1614 * do we need to set anything else?
1615 * HSTART etc are set in set_ov_sensor_window itself */
1616 i2c_w_mask(sd, OV7670_REG_COM7,
1617 qvga ? OV7670_COM7_FMT_QVGA : OV7670_COM7_FMT_VGA,
1618 OV7670_COM7_FMT_MASK);
1622 i2c_w_mask(sd, 0x14, qvga ? 0x20 : 0x00, 0x20);
1628 /******** Palette-specific regs ********/
1629 if (sd->sensor == SEN_OV7610 || sd->sensor == SEN_OV76BE) {
1630 /* not valid on the OV6620/OV7620/6630? */
1631 i2c_w_mask(sd, 0x0e, 0x00, 0x40);
1634 /* The OV518 needs special treatment. Although both the OV518
1635 * and the OV6630 support a 16-bit video bus, only the 8 bit Y
1636 * bus is actually used. The UV bus is tied to ground.
1637 * Therefore, the OV6630 needs to be in 8-bit multiplexed
1640 /* OV7640 is 8-bit only */
1642 if (sd->sensor != SEN_OV6630 && sd->sensor != SEN_OV7640)
1643 i2c_w_mask(sd, 0x13, 0x00, 0x20);
1645 /******** Clock programming ********/
1646 /* The OV6620 needs special handling. This prevents the
1647 * severe banding that normally occurs */
1648 if (sd->sensor == SEN_OV6620) {
1651 i2c_w(sd, 0x2a, 0x04);
1652 i2c_w(sd, 0x11, sd->clockdiv);
1653 i2c_w(sd, 0x2a, 0x84);
1654 /* This next setting is critical. It seems to improve
1655 * the gain or the contrast. The "reserved" bits seem
1656 * to have some effect in this case. */
1657 i2c_w(sd, 0x2d, 0x85);
1659 i2c_w(sd, 0x11, sd->clockdiv);
1662 /******** Special Features ********/
1663 /* no evidence this is possible with OV7670, either */
1665 if (sd->sensor != SEN_OV7640 && sd->sensor != SEN_OV7670)
1666 i2c_w_mask(sd, 0x12, 0x00, 0x02);
1668 /* Enable auto white balance */
1669 if (sd->sensor == SEN_OV7670)
1670 i2c_w_mask(sd, OV7670_REG_COM8, OV7670_COM8_AWB,
1673 i2c_w_mask(sd, 0x12, 0x04, 0x04);
1675 /* This will go away as soon as ov51x_mode_init_sensor_regs() */
1676 /* is fully tested. */
1677 /* 7620/6620/6630? don't have register 0x35, so play it safe */
1678 if (sd->sensor == SEN_OV7610 || sd->sensor == SEN_OV76BE) {
1680 i2c_w(sd, 0x35, 0x9e);
1682 i2c_w(sd, 0x35, 0x1e);
1687 static void sethvflip(struct sd *sd)
1689 if (sd->sensor != SEN_OV7670)
1691 if (sd->gspca_dev.streaming)
1693 i2c_w_mask(sd, OV7670_REG_MVFP,
1694 OV7670_MVFP_MIRROR * sd->hflip
1695 | OV7670_MVFP_VFLIP * sd->vflip,
1696 OV7670_MVFP_MIRROR | OV7670_MVFP_VFLIP);
1697 if (sd->gspca_dev.streaming)
1701 static int set_ov_sensor_window(struct sd *sd)
1703 struct gspca_dev *gspca_dev;
1705 int hwsbase, hwebase, vwsbase, vwebase, hwscale, vwscale;
1706 int ret, hstart, hstop, vstop, vstart;
1709 gspca_dev = &sd->gspca_dev;
1710 qvga = gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv;
1712 /* The different sensor ICs handle setting up of window differently.
1713 * IF YOU SET IT WRONG, YOU WILL GET ALL ZERO ISOC DATA FROM OV51x!! */
1714 switch (sd->sensor) {
1725 vwsbase = vwebase = 0x05;
1735 hwsbase = 0x2f; /* From 7620.SET (spec is wrong) */
1737 vwsbase = vwebase = 0x05;
1742 vwsbase = vwebase = 0x03;
1745 /*handling of OV7670 hardware sensor start and stop values
1746 * is very odd, compared to the other OV sensors */
1747 vwsbase = vwebase = hwebase = hwsbase = 0x00;
1753 switch (sd->sensor) {
1756 if (qvga) { /* QCIF */
1761 vwscale = 1; /* The datasheet says 0;
1766 if (qvga) { /* QSVGA */
1774 default: /* SEN_OV7xx0 */
1775 if (qvga) { /* QVGA */
1784 ret = mode_init_ov_sensor_regs(sd);
1788 if (sd->sensor == SEN_OV8610) {
1789 i2c_w_mask(sd, 0x2d, 0x05, 0x40);
1790 /* old 0x95, new 0x05 from windrv 090403 */
1791 /* bits 5-7: reserved */
1792 i2c_w_mask(sd, 0x28, 0x20, 0x20);
1793 /* bit 5: progressive mode on */
1796 /* The below is wrong for OV7670s because their window registers
1797 * only store the high bits in 0x17 to 0x1a */
1799 /* SRH Use sd->max values instead of requested win values */
1800 /* SCS Since we're sticking with only the max hardware widths
1801 * for a given mode */
1802 /* I can hard code this for OV7670s */
1803 /* Yes, these numbers do look odd, but they're tested and work! */
1804 if (sd->sensor == SEN_OV7670) {
1805 if (qvga) { /* QVGA from ov7670.c by
1806 * Jonathan Corbet */
1817 /* OV7670 hardware window registers are split across
1818 * multiple locations */
1819 i2c_w(sd, OV7670_REG_HSTART, hstart >> 3);
1820 i2c_w(sd, OV7670_REG_HSTOP, hstop >> 3);
1821 v = i2c_r(sd, OV7670_REG_HREF);
1822 v = (v & 0xc0) | ((hstop & 0x7) << 3) | (hstart & 0x07);
1823 msleep(10); /* need to sleep between read and write to
1825 i2c_w(sd, OV7670_REG_HREF, v);
1827 i2c_w(sd, OV7670_REG_VSTART, vstart >> 2);
1828 i2c_w(sd, OV7670_REG_VSTOP, vstop >> 2);
1829 v = i2c_r(sd, OV7670_REG_VREF);
1830 v = (v & 0xc0) | ((vstop & 0x3) << 2) | (vstart & 0x03);
1831 msleep(10); /* need to sleep between read and write to
1833 i2c_w(sd, OV7670_REG_VREF, v);
1836 i2c_w(sd, 0x17, hwsbase);
1837 i2c_w(sd, 0x18, hwebase + (sd->gspca_dev.width >> hwscale));
1838 i2c_w(sd, 0x19, vwsbase);
1839 i2c_w(sd, 0x1a, vwebase + (sd->gspca_dev.height >> vwscale));
1844 /* -- start the camera -- */
1845 static int sd_start(struct gspca_dev *gspca_dev)
1847 struct sd *sd = (struct sd *) gspca_dev;
1850 ret = ov519_mode_init_regs(sd);
1853 ret = set_ov_sensor_window(sd);
1857 ret = ov51x_restart(sd);
1860 ov51x_led_control(sd, 1);
1863 PDEBUG(D_ERR, "camera start error:%d", ret);
1867 static void sd_stopN(struct gspca_dev *gspca_dev)
1869 struct sd *sd = (struct sd *) gspca_dev;
1872 ov51x_led_control(sd, 0);
1875 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
1876 struct gspca_frame *frame, /* target */
1877 __u8 *data, /* isoc packet */
1878 int len) /* iso packet length */
1880 /* Header of ov519 is 16 bytes:
1881 * Byte Value Description
1885 * 3 0xXX 0x50 = SOF, 0x51 = EOF
1886 * 9 0xXX 0x01 initial frame without data,
1887 * 0x00 standard frame with image
1888 * 14 Lo in EOF: length of image data / 8
1892 if (data[0] == 0xff && data[1] == 0xff && data[2] == 0xff) {
1894 case 0x50: /* start of frame */
1899 if (data[0] == 0xff || data[1] == 0xd8)
1900 gspca_frame_add(gspca_dev, FIRST_PACKET, frame,
1903 gspca_dev->last_packet_type = DISCARD_PACKET;
1905 case 0x51: /* end of frame */
1907 gspca_dev->last_packet_type = DISCARD_PACKET;
1908 gspca_frame_add(gspca_dev, LAST_PACKET, frame,
1914 /* intermediate packet */
1915 gspca_frame_add(gspca_dev, INTER_PACKET, frame,
1919 /* -- management routines -- */
1921 static void setbrightness(struct gspca_dev *gspca_dev)
1923 struct sd *sd = (struct sd *) gspca_dev;
1926 val = sd->brightness;
1927 switch (sd->sensor) {
1934 i2c_w(sd, OV7610_REG_BRT, val);
1937 /* 7620 doesn't like manual changes when in auto mode */
1939 * if (!sd->auto_brt) */
1940 i2c_w(sd, OV7610_REG_BRT, val);
1944 * i2c_w_mask(sd, OV7670_REG_COM8, 0, OV7670_COM8_AEC); */
1945 i2c_w(sd, OV7670_REG_BRIGHT, ov7670_abs_to_sm(val));
1950 static void setcontrast(struct gspca_dev *gspca_dev)
1952 struct sd *sd = (struct sd *) gspca_dev;
1956 switch (sd->sensor) {
1959 i2c_w(sd, OV7610_REG_CNT, val);
1962 i2c_w_mask(sd, OV7610_REG_CNT, val >> 4, 0x0f);
1964 static const __u8 ctab[] = {
1965 0x03, 0x09, 0x0b, 0x0f, 0x53, 0x6f, 0x35, 0x7f
1968 /* Use Y gamma control instead. Bit 0 enables it. */
1969 i2c_w(sd, 0x64, ctab[val >> 5]);
1973 static const __u8 ctab[] = {
1974 0x01, 0x05, 0x09, 0x11, 0x15, 0x35, 0x37, 0x57,
1975 0x5b, 0xa5, 0xa7, 0xc7, 0xc9, 0xcf, 0xef, 0xff
1978 /* Use Y gamma control instead. Bit 0 enables it. */
1979 i2c_w(sd, 0x64, ctab[val >> 4]);
1983 /* Use gain control instead. */
1984 i2c_w(sd, OV7610_REG_GAIN, val >> 2);
1987 /* check that this isn't just the same as ov7610 */
1988 i2c_w(sd, OV7670_REG_CONTRAS, val >> 1);
1993 static void setcolors(struct gspca_dev *gspca_dev)
1995 struct sd *sd = (struct sd *) gspca_dev;
1999 switch (sd->sensor) {
2005 i2c_w(sd, OV7610_REG_SAT, val);
2008 /* Use UV gamma control instead. Bits 0 & 7 are reserved. */
2009 /* rc = ov_i2c_write(sd->dev, 0x62, (val >> 9) & 0x7e);
2012 i2c_w(sd, OV7610_REG_SAT, val);
2015 i2c_w(sd, OV7610_REG_SAT, val & 0xf0);
2018 /* supported later once I work out how to do it
2019 * transparently fail now! */
2020 /* set REG_COM13 values for UV sat auto mode */
2025 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
2027 struct sd *sd = (struct sd *) gspca_dev;
2029 sd->brightness = val;
2030 if (gspca_dev->streaming)
2031 setbrightness(gspca_dev);
2035 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
2037 struct sd *sd = (struct sd *) gspca_dev;
2039 *val = sd->brightness;
2043 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
2045 struct sd *sd = (struct sd *) gspca_dev;
2048 if (gspca_dev->streaming)
2049 setcontrast(gspca_dev);
2053 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
2055 struct sd *sd = (struct sd *) gspca_dev;
2057 *val = sd->contrast;
2061 static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val)
2063 struct sd *sd = (struct sd *) gspca_dev;
2066 if (gspca_dev->streaming)
2067 setcolors(gspca_dev);
2071 static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val)
2073 struct sd *sd = (struct sd *) gspca_dev;
2079 static int sd_sethflip(struct gspca_dev *gspca_dev, __s32 val)
2081 struct sd *sd = (struct sd *) gspca_dev;
2084 if (gspca_dev->streaming)
2089 static int sd_gethflip(struct gspca_dev *gspca_dev, __s32 *val)
2091 struct sd *sd = (struct sd *) gspca_dev;
2097 static int sd_setvflip(struct gspca_dev *gspca_dev, __s32 val)
2099 struct sd *sd = (struct sd *) gspca_dev;
2102 if (gspca_dev->streaming)
2107 static int sd_getvflip(struct gspca_dev *gspca_dev, __s32 *val)
2109 struct sd *sd = (struct sd *) gspca_dev;
2115 /* sub-driver description */
2116 static const struct sd_desc sd_desc = {
2117 .name = MODULE_NAME,
2119 .nctrls = ARRAY_SIZE(sd_ctrls),
2120 .config = sd_config,
2124 .pkt_scan = sd_pkt_scan,
2127 /* -- module initialisation -- */
2128 static const __devinitdata struct usb_device_id device_table[] = {
2129 {USB_DEVICE(0x041e, 0x4052)},
2130 {USB_DEVICE(0x041e, 0x405f)},
2131 {USB_DEVICE(0x041e, 0x4060)},
2132 {USB_DEVICE(0x041e, 0x4061)},
2133 {USB_DEVICE(0x041e, 0x4064)},
2134 {USB_DEVICE(0x041e, 0x4068)},
2135 {USB_DEVICE(0x045e, 0x028c)},
2136 {USB_DEVICE(0x054c, 0x0154)},
2137 {USB_DEVICE(0x054c, 0x0155)},
2138 {USB_DEVICE(0x05a9, 0x0519)},
2139 {USB_DEVICE(0x05a9, 0x0530)},
2140 {USB_DEVICE(0x05a9, 0x4519)},
2141 {USB_DEVICE(0x05a9, 0x8519)},
2145 MODULE_DEVICE_TABLE(usb, device_table);
2147 /* -- device connect -- */
2148 static int sd_probe(struct usb_interface *intf,
2149 const struct usb_device_id *id)
2151 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
2155 static struct usb_driver sd_driver = {
2156 .name = MODULE_NAME,
2157 .id_table = device_table,
2159 .disconnect = gspca_disconnect,
2161 .suspend = gspca_suspend,
2162 .resume = gspca_resume,
2166 /* -- module insert / remove -- */
2167 static int __init sd_mod_init(void)
2169 if (usb_register(&sd_driver) < 0)
2171 PDEBUG(D_PROBE, "registered");
2174 static void __exit sd_mod_exit(void)
2176 usb_deregister(&sd_driver);
2177 PDEBUG(D_PROBE, "deregistered");
2180 module_init(sd_mod_init);
2181 module_exit(sd_mod_exit);
2183 module_param(frame_rate, int, 0644);
2184 MODULE_PARM_DESC(frame_rate, "Frame rate (5, 10, 15, 20 or 30 fps)");