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 #define DRIVER_VERSION_NUMBER KERNEL_VERSION(2, 1, 0)
28 static const char version[] = "2.1.0";
30 MODULE_AUTHOR("Jean-Francois Moine <http://moinejf.free.fr>");
31 MODULE_DESCRIPTION("OV519 USB Camera Driver");
32 MODULE_LICENSE("GPL");
34 /* global parameters */
35 static int frame_rate;
37 /* Number of times to retry a failed I2C transaction. Increase this if you
38 * are getting "Failed to read sensor ID..." */
39 static int i2c_detect_tries = 10;
41 /* ov519 device descriptor */
43 struct gspca_dev gspca_dev; /* !! must be the first item */
45 /* Determined by sensor type */
49 unsigned char primary_i2c_slave; /* I2C write id of sensor */
51 unsigned char brightness;
52 unsigned char contrast;
55 char compress; /* Should the next frame be compressed? */
56 char compress_inited; /* Are compression params uploaded? */
57 char stopped; /* Streaming is temporarily paused */
59 char frame_rate; /* current Framerate (OV519 only) */
60 char clockdiv; /* clockdiv override for OV519 only */
62 char sensor; /* Type of image sensor chip (SEN_*) */
76 /* V4L2 controls supported by the driver */
77 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
78 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
79 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val);
80 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val);
81 static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val);
82 static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val);
84 static struct ctrl sd_ctrls[] = {
85 #define SD_BRIGHTNESS 0
88 .id = V4L2_CID_BRIGHTNESS,
89 .type = V4L2_CTRL_TYPE_INTEGER,
96 .set = sd_setbrightness,
97 .get = sd_getbrightness,
102 .id = V4L2_CID_CONTRAST,
103 .type = V4L2_CTRL_TYPE_INTEGER,
108 .default_value = 127,
110 .set = sd_setcontrast,
111 .get = sd_getcontrast,
116 .id = V4L2_CID_SATURATION,
117 .type = V4L2_CTRL_TYPE_INTEGER,
118 .name = "Saturation",
122 .default_value = 127,
129 static struct cam_mode vga_mode[] = {
130 {V4L2_PIX_FMT_JPEG, 320, 240},
131 {V4L2_PIX_FMT_JPEG, 640, 480},
133 static struct cam_mode sif_mode[] = {
134 {V4L2_PIX_FMT_JPEG, 176, 144},
135 {V4L2_PIX_FMT_JPEG, 352, 288},
138 /* OV519 Camera interface register numbers */
139 #define OV519_CAM_H_SIZE 0x10
140 #define OV519_CAM_V_SIZE 0x11
141 #define OV519_CAM_X_OFFSETL 0x12
142 #define OV519_CAM_X_OFFSETH 0x13
143 #define OV519_CAM_Y_OFFSETL 0x14
144 #define OV519_CAM_Y_OFFSETH 0x15
145 #define OV519_CAM_DIVIDER 0x16
146 #define OV519_CAM_DFR 0x20
147 #define OV519_CAM_FORMAT 0x25
149 /* OV519 System Controller register numbers */
150 #define OV519_SYS_RESET1 0x51
151 #define OV519_SYS_EN_CLK1 0x54
153 #define OV519_GPIO_DATA_OUT0 0x71
154 #define OV519_GPIO_IO_CTRL0 0x72
156 #define OV511_ENDPOINT_ADDRESS 1 /* Isoc endpoint number */
159 #define R51x_I2C_W_SID 0x41
160 #define R51x_I2C_SADDR_3 0x42
161 #define R51x_I2C_SADDR_2 0x43
162 #define R51x_I2C_R_SID 0x44
163 #define R51x_I2C_DATA 0x45
164 #define R518_I2C_CTL 0x47 /* OV518(+) only */
167 #define OV7xx0_SID 0x42
168 #define OV8xx0_SID 0xa0
169 #define OV6xx0_SID 0xc0
171 /* OV7610 registers */
172 #define OV7610_REG_GAIN 0x00 /* gain setting (5:0) */
173 #define OV7610_REG_SAT 0x03 /* saturation */
174 #define OV8610_REG_HUE 0x04 /* 04 reserved */
175 #define OV7610_REG_CNT 0x05 /* Y contrast */
176 #define OV7610_REG_BRT 0x06 /* Y brightness */
177 #define OV7610_REG_COM_C 0x14 /* misc common regs */
178 #define OV7610_REG_ID_HIGH 0x1c /* manufacturer ID MSB */
179 #define OV7610_REG_ID_LOW 0x1d /* manufacturer ID LSB */
180 #define OV7610_REG_COM_I 0x29 /* misc settings */
182 /* OV7670 registers */
183 #define OV7670_REG_GAIN 0x00 /* Gain lower 8 bits (rest in vref) */
184 #define OV7670_REG_BLUE 0x01 /* blue gain */
185 #define OV7670_REG_RED 0x02 /* red gain */
186 #define OV7670_REG_VREF 0x03 /* Pieces of GAIN, VSTART, VSTOP */
187 #define OV7670_REG_COM1 0x04 /* Control 1 */
188 #define OV7670_REG_AECHH 0x07 /* AEC MS 5 bits */
189 #define OV7670_REG_COM3 0x0c /* Control 3 */
190 #define OV7670_REG_COM4 0x0d /* Control 4 */
191 #define OV7670_REG_COM5 0x0e /* All "reserved" */
192 #define OV7670_REG_COM6 0x0f /* Control 6 */
193 #define OV7670_REG_AECH 0x10 /* More bits of AEC value */
194 #define OV7670_REG_CLKRC 0x11 /* Clock control */
195 #define OV7670_REG_COM7 0x12 /* Control 7 */
196 #define OV7670_COM7_FMT_VGA 0x00
197 #define OV7670_COM7_YUV 0x00 /* YUV */
198 #define OV7670_COM7_FMT_QVGA 0x10 /* QVGA format */
199 #define OV7670_COM7_FMT_MASK 0x38
200 #define OV7670_COM7_RESET 0x80 /* Register reset */
201 #define OV7670_REG_COM8 0x13 /* Control 8 */
202 #define OV7670_COM8_AEC 0x01 /* Auto exposure enable */
203 #define OV7670_COM8_AWB 0x02 /* White balance enable */
204 #define OV7670_COM8_AGC 0x04 /* Auto gain enable */
205 #define OV7670_COM8_BFILT 0x20 /* Band filter enable */
206 #define OV7670_COM8_AECSTEP 0x40 /* Unlimited AEC step size */
207 #define OV7670_COM8_FASTAEC 0x80 /* Enable fast AGC/AEC */
208 #define OV7670_REG_COM9 0x14 /* Control 9 - gain ceiling */
209 #define OV7670_REG_COM10 0x15 /* Control 10 */
210 #define OV7670_REG_HSTART 0x17 /* Horiz start high bits */
211 #define OV7670_REG_HSTOP 0x18 /* Horiz stop high bits */
212 #define OV7670_REG_VSTART 0x19 /* Vert start high bits */
213 #define OV7670_REG_VSTOP 0x1a /* Vert stop high bits */
214 #define OV7670_REG_MVFP 0x1e /* Mirror / vflip */
215 #define OV7670_MVFP_MIRROR 0x20 /* Mirror image */
216 #define OV7670_REG_AEW 0x24 /* AGC upper limit */
217 #define OV7670_REG_AEB 0x25 /* AGC lower limit */
218 #define OV7670_REG_VPT 0x26 /* AGC/AEC fast mode op region */
219 #define OV7670_REG_HREF 0x32 /* HREF pieces */
220 #define OV7670_REG_TSLB 0x3a /* lots of stuff */
221 #define OV7670_REG_COM11 0x3b /* Control 11 */
222 #define OV7670_COM11_EXP 0x02
223 #define OV7670_COM11_HZAUTO 0x10 /* Auto detect 50/60 Hz */
224 #define OV7670_REG_COM12 0x3c /* Control 12 */
225 #define OV7670_REG_COM13 0x3d /* Control 13 */
226 #define OV7670_COM13_GAMMA 0x80 /* Gamma enable */
227 #define OV7670_COM13_UVSAT 0x40 /* UV saturation auto adjustment */
228 #define OV7670_REG_COM14 0x3e /* Control 14 */
229 #define OV7670_REG_EDGE 0x3f /* Edge enhancement factor */
230 #define OV7670_REG_COM15 0x40 /* Control 15 */
231 #define OV7670_COM15_R00FF 0xc0 /* 00 to FF */
232 #define OV7670_REG_COM16 0x41 /* Control 16 */
233 #define OV7670_COM16_AWBGAIN 0x08 /* AWB gain enable */
234 #define OV7670_REG_BRIGHT 0x55 /* Brightness */
235 #define OV7670_REG_CONTRAS 0x56 /* Contrast control */
236 #define OV7670_REG_GFIX 0x69 /* Fix gain control */
237 #define OV7670_REG_RGB444 0x8c /* RGB 444 control */
238 #define OV7670_REG_HAECC1 0x9f /* Hist AEC/AGC control 1 */
239 #define OV7670_REG_HAECC2 0xa0 /* Hist AEC/AGC control 2 */
240 #define OV7670_REG_BD50MAX 0xa5 /* 50hz banding step limit */
241 #define OV7670_REG_HAECC3 0xa6 /* Hist AEC/AGC control 3 */
242 #define OV7670_REG_HAECC4 0xa7 /* Hist AEC/AGC control 4 */
243 #define OV7670_REG_HAECC5 0xa8 /* Hist AEC/AGC control 5 */
244 #define OV7670_REG_HAECC6 0xa9 /* Hist AEC/AGC control 6 */
245 #define OV7670_REG_HAECC7 0xaa /* Hist AEC/AGC control 7 */
246 #define OV7670_REG_BD60MAX 0xab /* 60hz banding step limit */
248 struct ovsensor_window {
254 short quarter; /* Scale width and height down 2x */
255 short clockdiv; /* Clock divisor setting */
258 static unsigned char ov7670_abs_to_sm(unsigned char v)
262 return (128 - v) | 0x80;
265 /* Write a OV519 register */
266 static int reg_w(struct sd *sd, __u16 index, __u8 value)
272 ret = usb_control_msg(sd->gspca_dev.dev,
273 usb_sndctrlpipe(sd->gspca_dev.dev, 0),
274 1, /* REQ_IO (ov518/519) */
275 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
279 PDEBUG(D_ERR, "Write reg [%02x] %02x failed", index, value);
283 /* Read from a OV519 register */
284 /* returns: negative is error, pos or zero is data */
285 static int reg_r(struct sd *sd, __u16 index)
290 ret = usb_control_msg(sd->gspca_dev.dev,
291 usb_rcvctrlpipe(sd->gspca_dev.dev, 0),
293 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
294 0, index, &buf[0], 1, 500);
299 PDEBUG(D_ERR, "Read reg [0x%02x] failed", index);
303 /* Read 8 values from a OV519 register */
304 static int reg_r8(struct sd *sd,
310 ret = usb_control_msg(sd->gspca_dev.dev,
311 usb_rcvctrlpipe(sd->gspca_dev.dev, 0),
313 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
314 0, index, &buf[0], 8, 500);
319 PDEBUG(D_ERR, "Read reg 8 [0x%02x] failed", index);
324 * Writes bits at positions specified by mask to an OV51x reg. Bits that are in
325 * the same position as 1's in "mask" are cleared and set to "value". Bits
326 * that are in the same position as 0's in "mask" are preserved, regardless
327 * of their respective state in "value".
329 static int reg_w_mask(struct sd *sd,
338 value &= mask; /* Enforce mask on value */
339 ret = reg_r(sd, index);
343 oldval = ret & ~mask; /* Clear the masked bits */
344 value |= oldval; /* Set the desired bits */
346 return reg_w(sd, index, value);
350 * The OV518 I2C I/O procedure is different, hence, this function.
351 * This is normally only called from i2c_w(). Note that this function
352 * always succeeds regardless of whether the sensor is present and working.
354 static int i2c_w(struct sd *sd,
360 PDEBUG(D_USBO, "i2c 0x%02x -> [0x%02x]", value, reg);
362 /* Select camera register */
363 rc = reg_w(sd, R51x_I2C_SADDR_3, reg);
367 /* Write "value" to I2C data port of OV511 */
368 rc = reg_w(sd, R51x_I2C_DATA, value);
372 /* Initiate 3-byte write cycle */
373 rc = reg_w(sd, R518_I2C_CTL, 0x01);
375 /* wait for write complete */
379 return reg_r8(sd, R518_I2C_CTL);
383 * returns: negative is error, pos or zero is data
385 * The OV518 I2C I/O procedure is different, hence, this function.
386 * This is normally only called from i2c_r(). Note that this function
387 * always succeeds regardless of whether the sensor is present and working.
389 static int i2c_r(struct sd *sd, __u8 reg)
393 /* Select camera register */
394 rc = reg_w(sd, R51x_I2C_SADDR_2, reg);
398 /* Initiate 2-byte write cycle */
399 rc = reg_w(sd, R518_I2C_CTL, 0x03);
403 /* Initiate 2-byte read cycle */
404 rc = reg_w(sd, R518_I2C_CTL, 0x05);
407 value = reg_r(sd, R51x_I2C_DATA);
408 PDEBUG(D_USBI, "i2c [0x%02X] -> 0x%02X", reg, value);
412 /* Writes bits at positions specified by mask to an I2C reg. Bits that are in
413 * the same position as 1's in "mask" are cleared and set to "value". Bits
414 * that are in the same position as 0's in "mask" are preserved, regardless
415 * of their respective state in "value".
417 static int i2c_w_mask(struct sd *sd,
425 value &= mask; /* Enforce mask on value */
429 oldval = rc & ~mask; /* Clear the masked bits */
430 value |= oldval; /* Set the desired bits */
431 return i2c_w(sd, reg, value);
434 /* Temporarily stops OV511 from functioning. Must do this before changing
435 * registers while the camera is streaming */
436 static inline int ov51x_stop(struct sd *sd)
438 PDEBUG(D_STREAM, "stopping");
440 return reg_w(sd, OV519_SYS_RESET1, 0x0f);
443 /* Restarts OV511 after ov511_stop() is called. Has no effect if it is not
444 * actually stopped (for performance). */
445 static inline int ov51x_restart(struct sd *sd)
447 PDEBUG(D_STREAM, "restarting");
452 /* Reinitialize the stream */
453 return reg_w(sd, OV519_SYS_RESET1, 0x00);
456 /* This does an initial reset of an OmniVision sensor and ensures that I2C
457 * is synchronized. Returns <0 on failure.
459 static int init_ov_sensor(struct sd *sd)
463 /* Reset the sensor */
464 if (i2c_w(sd, 0x12, 0x80) < 0)
467 /* Wait for it to initialize */
470 for (i = 0, success = 0; i < i2c_detect_tries && !success; i++) {
471 if (i2c_r(sd, OV7610_REG_ID_HIGH) == 0x7f &&
472 i2c_r(sd, OV7610_REG_ID_LOW) == 0xa2) {
477 /* Reset the sensor */
478 if (i2c_w(sd, 0x12, 0x80) < 0)
480 /* Wait for it to initialize */
482 /* Dummy read to sync I2C */
483 if (i2c_r(sd, 0x00) < 0)
488 PDEBUG(D_PROBE, "I2C synced in %d attempt(s)", i);
492 /* Switch on standard JPEG compression. Returns 0 for success. */
493 static int ov519_init_compression(struct sd *sd)
495 if (!sd->compress_inited) {
496 if (reg_w_mask(sd, OV519_SYS_EN_CLK1, 1 << 2, 1 << 2) < 0) {
497 PDEBUG(D_ERR, "Error switching to compressed mode");
500 sd->compress_inited = 1;
505 /* Set the read and write slave IDs. The "slave" argument is the write slave,
506 * and the read slave will be set to (slave + 1).
507 * This should not be called from outside the i2c I/O functions.
508 * Sets I2C read and write slave IDs. Returns <0 for error
510 static int ov51x_set_slave_ids(struct sd *sd,
515 rc = reg_w(sd, R51x_I2C_W_SID, slave);
518 return reg_w(sd, R51x_I2C_R_SID, slave + 1);
525 struct ov_i2c_regvals {
530 static int write_regvals(struct sd *sd,
531 struct ov_regvals *regvals,
537 rc = reg_w(sd, regvals->reg, regvals->val);
545 static int write_i2c_regvals(struct sd *sd,
546 struct ov_i2c_regvals *regvals,
552 rc = i2c_w(sd, regvals->reg, regvals->val);
560 /****************************************************************************
562 * OV511 and sensor configuration
564 ***************************************************************************/
566 /* This initializes the OV8110, OV8610 sensor. The OV8110 uses
567 * the same register settings as the OV8610, since they are very similar.
569 static int ov8xx0_configure(struct sd *sd)
572 static struct ov_i2c_regvals norm_8610[] = {
579 { 0x05, 0x30 }, /* was 0x10, new from windrv 090403 */
580 { 0x06, 0x70 }, /* was 0x80, new from windrv 090403 */
589 { 0x15, 0x01 }, /* Lin and Win think different about UV order */
591 { 0x17, 0x38 }, /* was 0x2f, new from windrv 090403 */
592 { 0x18, 0xea }, /* was 0xcf, new from windrv 090403 */
593 { 0x19, 0x02 }, /* was 0x06, new from windrv 090403 */
596 { 0x20, 0xd0 }, /* was 0x90, new from windrv 090403 */
597 { 0x23, 0xc0 }, /* was 0x00, new from windrv 090403 */
598 { 0x24, 0x30 }, /* was 0x1d, new from windrv 090403 */
599 { 0x25, 0x50 }, /* was 0x57, new from windrv 090403 */
605 { 0x2b, 0xc8 }, /* was 0xcc, new from windrv 090403 */
607 { 0x2d, 0x45 }, /* was 0xd5, new from windrv 090403 */
609 { 0x2f, 0x14 }, /* was 0x01, new from windrv 090403 */
611 { 0x4d, 0x30 }, /* was 0x10, new from windrv 090403 */
612 { 0x60, 0x02 }, /* was 0x01, new from windrv 090403 */
613 { 0x61, 0x00 }, /* was 0x09, new from windrv 090403 */
614 { 0x62, 0x5f }, /* was 0xd7, new from windrv 090403 */
616 { 0x64, 0x53 }, /* new windrv 090403 says 0x57,
617 * maybe thats wrong */
621 { 0x68, 0xc0 }, /* was 0xaf, new from windrv 090403 */
625 { 0x6c, 0x99 }, /* was 0x80, old windrv says 0x00, but
626 deleting bit7 colors the first images red */
627 { 0x6d, 0x11 }, /* was 0x00, new from windrv 090403 */
628 { 0x6e, 0x11 }, /* was 0x00, new from windrv 090403 */
634 { 0x74, 0x00 },/* 0x60? - was 0x00, new from windrv 090403 */
636 { 0x76, 0x02 }, /* was 0x02, new from windrv 090403 */
641 { 0x7b, 0x10 }, /* was 0x13, new from windrv 090403 */
643 { 0x7d, 0x08 }, /* was 0x09, new from windrv 090403 */
644 { 0x7e, 0x08 }, /* was 0xc0, new from windrv 090403 */
651 { 0x85, 0x62 }, /* was 0x61, new from windrv 090403 */
657 { 0x12, 0x25 }, /* was 0x24, new from windrv 090403 */
660 PDEBUG(D_PROBE, "starting ov8xx0 configuration");
662 if (init_ov_sensor(sd) < 0)
663 PDEBUG(D_ERR|D_PROBE, "Failed to read sensor ID");
665 PDEBUG(D_PROBE, "OV86x0 initialized");
667 /* Detect sensor (sub)type */
668 rc = i2c_r(sd, OV7610_REG_COM_I);
670 PDEBUG(D_ERR, "Error detecting sensor type");
674 PDEBUG(D_PROBE, "Sensor is an OV8610");
675 sd->sensor = SEN_OV8610;
677 PDEBUG(D_ERR, "Unknown image sensor version: %d", rc & 3);
680 PDEBUG(D_PROBE, "Writing 8610 registers");
681 if (write_i2c_regvals(sd,
683 sizeof norm_8610 / sizeof norm_8610[0]))
686 /* Set sensor-specific vars */
692 /* This initializes the OV7610, OV7620, or OV76BE sensor. The OV76BE uses
693 * the same register settings as the OV7610, since they are very similar.
695 static int ov7xx0_configure(struct sd *sd)
699 /* Lawrence Glaister <lg@jfm.bc.ca> reports:
701 * Register 0x0f in the 7610 has the following effects:
703 * 0x85 (AEC method 1): Best overall, good contrast range
704 * 0x45 (AEC method 2): Very overexposed
705 * 0xa5 (spec sheet default): Ok, but the black level is
706 * shifted resulting in loss of contrast
707 * 0x05 (old driver setting): very overexposed, too much
710 static struct ov_i2c_regvals norm_7610[] = {
717 { 0x28, 0x24 }, /* 0c */
718 { 0x0f, 0x85 }, /* lg's setting */
740 static struct ov_i2c_regvals norm_7620[] = {
741 { 0x00, 0x00 }, /* gain */
742 { 0x01, 0x80 }, /* blue gain */
743 { 0x02, 0x80 }, /* red gain */
744 { 0x03, 0xc0 }, /* OV7670_REG_VREF */
806 /* 7640 and 7648. The defaults should be OK for most registers. */
807 static struct ov_i2c_regvals norm_7640[] = {
812 /* 7670. Defaults taken from OmniVision provided data,
813 * as provided by Jonathan Corbet of OLPC */
814 static struct ov_i2c_regvals norm_7670[] = {
815 { OV7670_REG_COM7, OV7670_COM7_RESET },
816 { OV7670_REG_TSLB, 0x04 }, /* OV */
817 { OV7670_REG_COM7, OV7670_COM7_FMT_VGA }, /* VGA */
818 { OV7670_REG_CLKRC, 0x1 },
820 * Set the hardware window. These values from OV don't entirely
821 * make sense - hstop is less than hstart. But they work...
823 { OV7670_REG_HSTART, 0x13 }, { OV7670_REG_HSTOP, 0x01 },
824 { OV7670_REG_HREF, 0xb6 }, { OV7670_REG_VSTART, 0x02 },
825 { OV7670_REG_VSTOP, 0x7a }, { OV7670_REG_VREF, 0x0a },
827 { OV7670_REG_COM3, 0 }, { OV7670_REG_COM14, 0 },
828 /* Mystery scaling numbers */
829 { 0x70, 0x3a }, { 0x71, 0x35 },
830 { 0x72, 0x11 }, { 0x73, 0xf0 },
833 /* { OV7670_REG_COM10, 0x0 }, */
835 /* Gamma curve values */
843 { 0x7e, 0x5a }, { 0x7f, 0x69 },
844 { 0x80, 0x76 }, { 0x81, 0x80 },
845 { 0x82, 0x88 }, { 0x83, 0x8f },
846 { 0x84, 0x96 }, { 0x85, 0xa3 },
847 { 0x86, 0xaf }, { 0x87, 0xc4 },
848 { 0x88, 0xd7 }, { 0x89, 0xe8 },
850 /* AGC and AEC parameters. Note we start by disabling those features,
851 then turn them only after tweaking the values. */
852 { OV7670_REG_COM8, OV7670_COM8_FASTAEC
853 | OV7670_COM8_AECSTEP
854 | OV7670_COM8_BFILT },
855 { OV7670_REG_GAIN, 0 }, { OV7670_REG_AECH, 0 },
856 { OV7670_REG_COM4, 0x40 }, /* magic reserved bit */
858 { OV7670_REG_COM9, 0x18 }, /* 4x gain + magic rsvd bit */
859 { OV7670_REG_BD50MAX, 0x05 }, { OV7670_REG_BD60MAX, 0x07 },
860 { OV7670_REG_AEW, 0x95 }, { OV7670_REG_AEB, 0x33 },
861 { OV7670_REG_VPT, 0xe3 }, { OV7670_REG_HAECC1, 0x78 },
862 { OV7670_REG_HAECC2, 0x68 },
864 { 0xa1, 0x03 }, /* magic */
865 { OV7670_REG_HAECC3, 0xd8 }, { OV7670_REG_HAECC4, 0xd8 },
866 { OV7670_REG_HAECC5, 0xf0 }, { OV7670_REG_HAECC6, 0x90 },
867 { OV7670_REG_HAECC7, 0x94 },
868 { OV7670_REG_COM8, OV7670_COM8_FASTAEC
869 | OV7670_COM8_AECSTEP
874 /* Almost all of these are magic "reserved" values. */
875 { OV7670_REG_COM5, 0x61 }, { OV7670_REG_COM6, 0x4b },
878 /* { OV7670_REG_MVFP, 0x07|OV7670_MVFP_MIRROR }, */
879 { OV7670_REG_MVFP, 0x07 },
880 { 0x21, 0x02 }, { 0x22, 0x91 },
881 { 0x29, 0x07 }, { 0x33, 0x0b },
882 { 0x35, 0x0b }, { 0x37, 0x1d },
883 { 0x38, 0x71 }, { 0x39, 0x2a },
884 { OV7670_REG_COM12, 0x78 }, { 0x4d, 0x40 },
885 { 0x4e, 0x20 }, { OV7670_REG_GFIX, 0 },
886 { 0x6b, 0x4a }, { 0x74, 0x10 },
887 { 0x8d, 0x4f }, { 0x8e, 0 },
888 { 0x8f, 0 }, { 0x90, 0 },
889 { 0x91, 0 }, { 0x96, 0 },
890 { 0x9a, 0 }, { 0xb0, 0x84 },
891 { 0xb1, 0x0c }, { 0xb2, 0x0e },
892 { 0xb3, 0x82 }, { 0xb8, 0x0a },
894 /* More reserved magic, some of which tweaks white balance */
895 { 0x43, 0x0a }, { 0x44, 0xf0 },
896 { 0x45, 0x34 }, { 0x46, 0x58 },
897 { 0x47, 0x28 }, { 0x48, 0x3a },
898 { 0x59, 0x88 }, { 0x5a, 0x88 },
899 { 0x5b, 0x44 }, { 0x5c, 0x67 },
900 { 0x5d, 0x49 }, { 0x5e, 0x0e },
901 { 0x6c, 0x0a }, { 0x6d, 0x55 },
902 { 0x6e, 0x11 }, { 0x6f, 0x9f },
903 /* "9e for advance AWB" */
904 { 0x6a, 0x40 }, { OV7670_REG_BLUE, 0x40 },
905 { OV7670_REG_RED, 0x60 },
906 { OV7670_REG_COM8, OV7670_COM8_FASTAEC
907 | OV7670_COM8_AECSTEP
913 /* Matrix coefficients */
914 { 0x4f, 0x80 }, { 0x50, 0x80 },
915 { 0x51, 0 }, { 0x52, 0x22 },
916 { 0x53, 0x5e }, { 0x54, 0x80 },
919 { OV7670_REG_COM16, OV7670_COM16_AWBGAIN },
920 { OV7670_REG_EDGE, 0 },
921 { 0x75, 0x05 }, { 0x76, 0xe1 },
922 { 0x4c, 0 }, { 0x77, 0x01 },
923 { OV7670_REG_COM13, 0xc3 }, { 0x4b, 0x09 },
924 { 0xc9, 0x60 }, { OV7670_REG_COM16, 0x38 },
928 { OV7670_REG_COM11, OV7670_COM11_EXP|OV7670_COM11_HZAUTO },
929 { 0xa4, 0x88 }, { 0x96, 0 },
930 { 0x97, 0x30 }, { 0x98, 0x20 },
931 { 0x99, 0x30 }, { 0x9a, 0x84 },
932 { 0x9b, 0x29 }, { 0x9c, 0x03 },
933 { 0x9d, 0x4c }, { 0x9e, 0x3f },
936 /* Extra-weird stuff. Some sort of multiplexor register */
937 { 0x79, 0x01 }, { 0xc8, 0xf0 },
938 { 0x79, 0x0f }, { 0xc8, 0x00 },
939 { 0x79, 0x10 }, { 0xc8, 0x7e },
940 { 0x79, 0x0a }, { 0xc8, 0x80 },
941 { 0x79, 0x0b }, { 0xc8, 0x01 },
942 { 0x79, 0x0c }, { 0xc8, 0x0f },
943 { 0x79, 0x0d }, { 0xc8, 0x20 },
944 { 0x79, 0x09 }, { 0xc8, 0x80 },
945 { 0x79, 0x02 }, { 0xc8, 0xc0 },
946 { 0x79, 0x03 }, { 0xc8, 0x40 },
947 { 0x79, 0x05 }, { 0xc8, 0x30 },
951 { OV7670_REG_COM7, OV7670_COM7_YUV }, /* Selects YUV mode */
952 { OV7670_REG_RGB444, 0 }, /* No RGB444 please */
953 { OV7670_REG_COM1, 0 },
954 { OV7670_REG_COM15, OV7670_COM15_R00FF },
955 { OV7670_REG_COM9, 0x18 },
956 /* 4x gain ceiling; 0x8 is reserved bit */
957 { 0x4f, 0x80 }, /* "matrix coefficient 1" */
958 { 0x50, 0x80 }, /* "matrix coefficient 2" */
959 { 0x52, 0x22 }, /* "matrix coefficient 4" */
960 { 0x53, 0x5e }, /* "matrix coefficient 5" */
961 { 0x54, 0x80 }, /* "matrix coefficient 6" */
962 { OV7670_REG_COM13, OV7670_COM13_GAMMA|OV7670_COM13_UVSAT },
965 PDEBUG(D_PROBE, "starting OV7xx0 configuration");
967 /* jfm:already done? */
968 if (init_ov_sensor(sd) < 0)
969 PDEBUG(D_ERR, "Failed to read sensor ID");
971 PDEBUG(D_PROBE, "OV7xx0 initialized");
973 /* Detect sensor (sub)type */
974 rc = i2c_r(sd, OV7610_REG_COM_I);
977 * it appears to be wrongly detected as a 7610 by default */
979 PDEBUG(D_ERR, "Error detecting sensor type");
983 /* quick hack to make OV7670s work */
984 high = i2c_r(sd, 0x0a);
985 low = i2c_r(sd, 0x0b);
986 /* info("%x, %x", high, low); */
987 if (high == 0x76 && low == 0x73) {
988 PDEBUG(D_PROBE, "Sensor is an OV7670");
989 sd->sensor = SEN_OV7670;
991 PDEBUG(D_PROBE, "Sensor is an OV7610");
992 sd->sensor = SEN_OV7610;
994 } else if ((rc & 3) == 1) {
995 /* I don't know what's different about the 76BE yet. */
996 if (i2c_r(sd, 0x15) & 1)
997 PDEBUG(D_PROBE, "Sensor is an OV7620AE");
999 PDEBUG(D_PROBE, "Sensor is an OV76BE");
1001 /* OV511+ will return all zero isoc data unless we
1002 * configure the sensor as a 7620. Someone needs to
1003 * find the exact reg. setting that causes this. */
1004 sd->sensor = SEN_OV76BE;
1005 } else if ((rc & 3) == 0) {
1006 /* try to read product id registers */
1007 high = i2c_r(sd, 0x0a);
1009 PDEBUG(D_ERR, "Error detecting camera chip PID");
1012 low = i2c_r(sd, 0x0b);
1014 PDEBUG(D_ERR, "Error detecting camera chip VER");
1019 PDEBUG(D_PROBE, "Sensor is an OV7630/OV7635");
1020 sd->sensor = SEN_OV7630;
1021 } else if (low == 0x40) {
1022 PDEBUG(D_PROBE, "Sensor is an OV7645");
1023 sd->sensor = SEN_OV7640; /* FIXME */
1024 } else if (low == 0x45) {
1025 PDEBUG(D_PROBE, "Sensor is an OV7645B");
1026 sd->sensor = SEN_OV7640; /* FIXME */
1027 } else if (low == 0x48) {
1028 PDEBUG(D_PROBE, "Sensor is an OV7648");
1029 sd->sensor = SEN_OV7640; /* FIXME */
1031 PDEBUG(D_PROBE, "Unknown sensor: 0x76%X", low);
1035 PDEBUG(D_PROBE, "Sensor is an OV7620");
1036 sd->sensor = SEN_OV7620;
1039 PDEBUG(D_ERR, "Unknown image sensor version: %d", rc & 3);
1043 if (sd->sensor == SEN_OV7620) {
1044 PDEBUG(D_PROBE, "Writing 7620 registers");
1045 if (write_i2c_regvals(sd, norm_7620,
1046 sizeof norm_7620 / sizeof norm_7620[0]))
1048 } else if (sd->sensor == SEN_OV7630) {
1049 PDEBUG(D_ERR, "7630 is not supported by this driver version");
1051 } else if (sd->sensor == SEN_OV7640) {
1052 PDEBUG(D_PROBE, "Writing 7640 registers");
1053 if (write_i2c_regvals(sd, norm_7640,
1054 sizeof norm_7640 / sizeof norm_7640[0]))
1056 } else if (sd->sensor == SEN_OV7670) {
1057 PDEBUG(D_PROBE, "Writing 7670 registers");
1058 if (write_i2c_regvals(sd, norm_7670,
1059 sizeof norm_7670 / sizeof norm_7670[0]))
1062 PDEBUG(D_PROBE, "Writing 7610 registers");
1063 if (write_i2c_regvals(sd, norm_7610,
1064 sizeof norm_7610 / sizeof norm_7610[0]))
1068 /* Set sensor-specific vars */
1070 sd->maxheight = 480;
1074 /* This initializes the OV6620, OV6630, OV6630AE, or OV6630AF sensor. */
1075 static int ov6xx0_configure(struct sd *sd)
1078 static struct ov_i2c_regvals norm_6x20[] = {
1079 { 0x12, 0x80 }, /* reset */
1082 { 0x05, 0x7f }, /* For when autoadjust is off */
1084 /* The ratio of 0x0c and 0x0d controls the white point */
1087 { 0x0f, 0x15 }, /* COMS */
1088 { 0x10, 0x75 }, /* AEC Exposure time */
1089 { 0x12, 0x24 }, /* Enable AGC */
1091 /* 0x16: 0x06 helps frame stability with moving objects */
1093 /* { 0x20, 0x30 }, * Aperture correction enable */
1094 { 0x26, 0xb2 }, /* BLC enable */
1095 /* 0x28: 0x05 Selects RGB format if RGB on */
1097 { 0x2a, 0x04 }, /* Disable framerate adjust */
1098 /* { 0x2b, 0xac }, * Framerate; Set 2a[7] first */
1100 { 0x33, 0xa0 }, /* Color Processing Parameter */
1101 { 0x34, 0xd2 }, /* Max A/D range */
1105 { 0x3c, 0x39 }, /* Enable AEC mode changing */
1106 { 0x3c, 0x3c }, /* Change AEC mode */
1107 { 0x3c, 0x24 }, /* Disable AEC mode changing */
1110 /* These next two registers (0x4a, 0x4b) are undocumented.
1111 * They control the color balance */
1114 { 0x4d, 0xd2 }, /* This reduces noise a bit */
1117 /* Do 50-53 have any effect? */
1118 /* Toggle 0x12[2] off and on here? */
1121 static struct ov_i2c_regvals norm_6x30[] = {
1122 { 0x12, 0x80 }, /* Reset */
1123 { 0x00, 0x1f }, /* Gain */
1124 { 0x01, 0x99 }, /* Blue gain */
1125 { 0x02, 0x7c }, /* Red gain */
1126 { 0x03, 0xc0 }, /* Saturation */
1127 { 0x05, 0x0a }, /* Contrast */
1128 { 0x06, 0x95 }, /* Brightness */
1129 { 0x07, 0x2d }, /* Sharpness */
1135 { 0x11, 0x00 }, /* Pixel clock = fastest */
1136 { 0x12, 0x24 }, /* Enable AGC and AWB */
1151 { 0x23, 0xc0 }, /* Crystal circuit power level */
1152 { 0x25, 0x9a }, /* Increase AEC black ratio */
1153 { 0x26, 0xb2 }, /* BLC enable */
1157 { 0x2a, 0x84 }, /* 60 Hz power */
1158 { 0x2b, 0xa8 }, /* 60 Hz power */
1160 { 0x2d, 0x95 }, /* Enable auto-brightness */
1174 { 0x40, 0x00 }, /* White bal */
1175 { 0x41, 0x00 }, /* White bal */
1177 { 0x43, 0x3f }, /* White bal */
1187 { 0x4d, 0x10 }, /* U = 0.563u, V = 0.714v */
1189 { 0x4f, 0x07 }, /* UV avg., col. killer: max */
1191 { 0x54, 0x23 }, /* Max AGC gain: 18dB */
1196 { 0x59, 0x01 }, /* AGC dark current comp.: +1 */
1198 { 0x5b, 0x0f }, /* AWB chrominance levels */
1202 { 0x12, 0x20 }, /* Toggle AWB */
1206 PDEBUG(D_PROBE, "starting sensor configuration");
1208 if (init_ov_sensor(sd) < 0) {
1209 PDEBUG(D_ERR, "Failed to read sensor ID.");
1212 PDEBUG(D_PROBE, "OV6xx0 sensor detected");
1214 /* Detect sensor (sub)type */
1215 rc = i2c_r(sd, OV7610_REG_COM_I);
1217 PDEBUG(D_ERR, "Error detecting sensor type");
1221 /* Ugh. The first two bits are the version bits, but
1222 * the entire register value must be used. I guess OVT
1223 * underestimated how many variants they would make. */
1225 sd->sensor = SEN_OV6630;
1227 "WARNING: Sensor is an OV66308. Your camera may have");
1228 PDEBUG(D_ERR, "been misdetected in previous driver versions.");
1229 } else if (rc == 0x01) {
1230 sd->sensor = SEN_OV6620;
1231 PDEBUG(D_PROBE, "Sensor is an OV6620");
1232 } else if (rc == 0x02) {
1233 sd->sensor = SEN_OV6630;
1234 PDEBUG(D_PROBE, "Sensor is an OV66308AE");
1235 } else if (rc == 0x03) {
1236 sd->sensor = SEN_OV6630;
1237 PDEBUG(D_PROBE, "Sensor is an OV66308AF");
1238 } else if (rc == 0x90) {
1239 sd->sensor = SEN_OV6630;
1241 "WARNING: Sensor is an OV66307. Your camera may have");
1242 PDEBUG(D_ERR, "been misdetected in previous driver versions.");
1244 PDEBUG(D_ERR, "FATAL: Unknown sensor version: 0x%02x", rc);
1248 /* Set sensor-specific vars */
1250 sd->maxheight = 288;
1252 if (sd->sensor == SEN_OV6620) {
1253 PDEBUG(D_PROBE, "Writing 6x20 registers");
1254 if (write_i2c_regvals(sd, norm_6x20,
1255 sizeof norm_6x20 / sizeof norm_6x20[0]))
1258 PDEBUG(D_PROBE, "Writing 6x30 registers");
1259 if (write_i2c_regvals(sd, norm_6x30,
1260 sizeof norm_6x30 / sizeof norm_6x30[0]))
1266 /* Turns on or off the LED. Only has an effect with OV511+/OV518(+)/OV519 */
1267 static void ov51x_led_control(struct sd *sd, int on)
1269 PDEBUG(D_STREAM, "LED (%s)", on ? "on" : "off");
1271 /* if (sd->bridge == BRG_OV511PLUS) */
1272 /* reg_w(sd, R511_SYS_LED_CTL, on ? 1 : 0); */
1273 /* else if (sd->bridge == BRG_OV519) */
1274 reg_w_mask(sd, OV519_GPIO_DATA_OUT0, !on, 1); /* 0 / 1 */
1275 /* else if (sd->bclass == BCL_OV518) */
1276 /* reg_w_mask(sd, R518_GPIO_OUT, on ? 0x02 : 0x00, 0x02); */
1279 /* this function is called at probe time */
1280 static int sd_config(struct gspca_dev *gspca_dev,
1281 const struct usb_device_id *id)
1283 struct sd *sd = (struct sd *) gspca_dev;
1286 /* (from ov519_configure) */
1287 static struct ov_regvals init_519[] = {
1288 { 0x5a, 0x6d }, /* EnableSystem */
1289 /* jfm trace usbsnoop3-1.txt */
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,
1306 sizeof init_519 / sizeof init_519[0]))
1308 /* jfm: not seen in windows trace */
1309 if (ov519_init_compression(sd))
1311 ov51x_led_control(sd, 0); /* turn LED off */
1314 sd->primary_i2c_slave = OV7xx0_SID;
1315 if (ov51x_set_slave_ids(sd, OV7xx0_SID) < 0)
1318 /* The OV519 must be more aggressive about sensor detection since
1319 * I2C write will never fail if the sensor is not present. We have
1320 * to try to initialize the sensor to detect its presence */
1321 if (init_ov_sensor(sd) < 0) {
1323 sd->primary_i2c_slave = OV6xx0_SID;
1324 if (ov51x_set_slave_ids(sd, OV6xx0_SID) < 0)
1327 if (init_ov_sensor(sd) < 0) {
1329 sd->primary_i2c_slave = OV8xx0_SID;
1330 if (ov51x_set_slave_ids(sd, OV8xx0_SID) < 0)
1333 if (init_ov_sensor(sd) < 0) {
1335 "Can't determine sensor slave IDs");
1338 if (ov8xx0_configure(sd) < 0) {
1340 "Failed to configure OV8xx0 sensor");
1345 if (ov6xx0_configure(sd) < 0) {
1346 PDEBUG(D_ERR, "Failed to configure OV6xx0");
1351 if (ov7xx0_configure(sd) < 0) {
1352 PDEBUG(D_ERR, "Failed to configure OV7xx0");
1357 cam = &gspca_dev->cam;
1358 cam->epaddr = OV511_ENDPOINT_ADDRESS;
1359 if (sd->maxwidth == 640) {
1360 cam->cam_mode = vga_mode;
1361 cam->nmodes = sizeof vga_mode / sizeof vga_mode[0];
1363 cam->cam_mode = sif_mode;
1364 cam->nmodes = sizeof sif_mode / sizeof sif_mode[0];
1366 cam->dev_name = (char *) id->driver_info;
1367 sd->brightness = sd_ctrls[SD_BRIGHTNESS].qctrl.default_value;
1368 sd->contrast = sd_ctrls[SD_CONTRAST].qctrl.default_value;
1369 sd->colors = sd_ctrls[SD_COLOR].qctrl.default_value;
1372 PDEBUG(D_ERR, "OV519 Config failed");
1376 /* this function is called at open time */
1377 static int sd_open(struct gspca_dev *gspca_dev)
1382 /* Sets up the OV519 with the given image parameters
1384 * OV519 needs a completely different approach, until we can figure out what
1385 * the individual registers do.
1387 * Do not put any sensor-specific code in here (including I2C I/O functions)
1389 static int ov519_mode_init_regs(struct sd *sd,
1390 int width, int height)
1392 static struct ov_regvals mode_init_519_ov7670[] = {
1393 { 0x5d, 0x03 }, /* Turn off suspend mode */
1394 { 0x53, 0x9f }, /* was 9b in 1.65-1.08 */
1395 { 0x54, 0x0f }, /* bit2 (jpeg enable) */
1396 { 0xa2, 0x20 }, /* a2-a5 are undocumented */
1400 { 0x37, 0x00 }, /* SetUsbInit */
1401 { 0x55, 0x02 }, /* 4.096 Mhz audio clock */
1402 /* Enable both fields, YUV Input, disable defect comp (why?) */
1406 { 0x17, 0x50 }, /* undocumented */
1407 { 0x37, 0x00 }, /* undocumented */
1408 { 0x40, 0xff }, /* I2C timeout counter */
1409 { 0x46, 0x00 }, /* I2C clock prescaler */
1410 { 0x59, 0x04 }, /* new from windrv 090403 */
1411 { 0xff, 0x00 }, /* undocumented */
1412 /* windows reads 0x55 at this point, why? */
1415 static struct ov_regvals mode_init_519[] = {
1416 { 0x5d, 0x03 }, /* Turn off suspend mode */
1417 { 0x53, 0x9f }, /* was 9b in 1.65-1.08 */
1418 { 0x54, 0x0f }, /* bit2 (jpeg enable) */
1419 { 0xa2, 0x20 }, /* a2-a5 are undocumented */
1423 { 0x37, 0x00 }, /* SetUsbInit */
1424 { 0x55, 0x02 }, /* 4.096 Mhz audio clock */
1425 /* Enable both fields, YUV Input, disable defect comp (why?) */
1427 { 0x17, 0x50 }, /* undocumented */
1428 { 0x37, 0x00 }, /* undocumented */
1429 { 0x40, 0xff }, /* I2C timeout counter */
1430 { 0x46, 0x00 }, /* I2C clock prescaler */
1431 { 0x59, 0x04 }, /* new from windrv 090403 */
1432 { 0xff, 0x00 }, /* undocumented */
1433 /* windows reads 0x55 at this point, why? */
1438 PDEBUG(D_CONF, "mode init %dx%d", width, height);
1440 /* if (width >= 800 && height >= 600)
1445 /* if (ov51x_stop(sd) < 0)
1448 /******** Set the mode ********/
1449 if (sd->sensor != SEN_OV7670) {
1450 if (write_regvals(sd, mode_init_519,
1451 sizeof mode_init_519 / sizeof mode_init_519[0]))
1454 if (write_regvals(sd, mode_init_519_ov7670,
1455 sizeof mode_init_519_ov7670
1456 / sizeof mode_init_519_ov7670[0]))
1460 if (sd->sensor == SEN_OV7640) {
1461 /* Select 8-bit input mode */
1462 reg_w_mask(sd, OV519_CAM_DFR, 0x10, 0x10);
1465 reg_w(sd, OV519_CAM_H_SIZE, width >> 4);
1466 reg_w(sd, OV519_CAM_V_SIZE, height >> 3);
1467 reg_w(sd, OV519_CAM_X_OFFSETL, 0x00);
1468 reg_w(sd, OV519_CAM_X_OFFSETH, 0x00);
1469 reg_w(sd, OV519_CAM_Y_OFFSETL, 0x00);
1470 reg_w(sd, OV519_CAM_Y_OFFSETH, 0x00);
1471 reg_w(sd, OV519_CAM_DIVIDER, 0x00);
1472 reg_w(sd, OV519_CAM_FORMAT, 0x03); /* YUV422 */
1473 reg_w(sd, 0x26, 0x00); /* Undocumented */
1475 /******** Set the framerate ********/
1477 sd->frame_rate = frame_rate;
1479 /* FIXME: These are only valid at the max resolution. */
1481 if (sd->sensor == SEN_OV7640) {
1482 switch (sd->frame_rate) {
1483 /*jfm: default was 30 fps */
1485 reg_w(sd, 0xa4, 0x0c);
1486 reg_w(sd, 0x23, 0xff);
1489 reg_w(sd, 0xa4, 0x0c);
1490 reg_w(sd, 0x23, 0x1f);
1493 reg_w(sd, 0xa4, 0x0c);
1494 reg_w(sd, 0x23, 0x1b);
1498 reg_w(sd, 0xa4, 0x04);
1499 reg_w(sd, 0x23, 0xff);
1503 reg_w(sd, 0xa4, 0x04);
1504 reg_w(sd, 0x23, 0x1f);
1508 reg_w(sd, 0xa4, 0x04);
1509 reg_w(sd, 0x23, 0x1b);
1513 } else if (sd->sensor == SEN_OV8610) {
1514 switch (sd->frame_rate) {
1515 default: /* 15 fps */
1517 reg_w(sd, 0xa4, 0x06);
1518 reg_w(sd, 0x23, 0xff);
1521 reg_w(sd, 0xa4, 0x06);
1522 reg_w(sd, 0x23, 0x1f);
1525 reg_w(sd, 0xa4, 0x06);
1526 reg_w(sd, 0x23, 0x1b);
1530 } else if (sd->sensor == SEN_OV7670) { /* guesses, based on 7640 */
1531 PDEBUG(D_STREAM, "Setting framerate to %d fps",
1532 (sd->frame_rate == 0) ? 15 : sd->frame_rate);
1533 switch (sd->frame_rate) {
1535 reg_w(sd, 0xa4, 0x10);
1536 reg_w(sd, 0x23, 0xff);
1539 reg_w(sd, 0xa4, 0x10);
1540 reg_w(sd, 0x23, 0x1b);
1542 default: /* 15 fps */
1544 reg_w(sd, 0xa4, 0x10);
1545 reg_w(sd, 0x23, 0xff);
1551 /* if (ov51x_restart(sd) < 0)
1554 /* Reset it just for good measure */
1555 /* if (ov51x_reset(sd, OV511_RESET_NOREGS) < 0)
1560 static int mode_init_ov_sensor_regs(struct sd *sd,
1561 struct ovsensor_window *win)
1563 int qvga = win->quarter;
1565 /******** Mode (VGA/QVGA) and sensor specific regs ********/
1566 switch (sd->sensor) {
1568 /* For OV8610 qvga means qsvga */
1569 i2c_w_mask(sd, OV7610_REG_COM_C, qvga ? (1 << 5) : 0, 1 << 5);
1572 i2c_w_mask(sd, 0x14, qvga ? 0x20 : 0x00, 0x20);
1575 /* i2c_w(sd, 0x2b, 0x00); */
1576 i2c_w_mask(sd, 0x14, qvga ? 0x20 : 0x00, 0x20);
1577 i2c_w_mask(sd, 0x28, qvga ? 0x00 : 0x20, 0x20);
1578 i2c_w(sd, 0x24, qvga ? 0x20 : 0x3a);
1579 i2c_w(sd, 0x25, qvga ? 0x30 : 0x60);
1580 i2c_w_mask(sd, 0x2d, qvga ? 0x40 : 0x00, 0x40);
1581 i2c_w_mask(sd, 0x67, qvga ? 0xf0 : 0x90, 0xf0);
1582 i2c_w_mask(sd, 0x74, qvga ? 0x20 : 0x00, 0x20);
1585 /* i2c_w(sd, 0x2b, 0x00); */
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 /* set COM7_FMT_VGA or COM7_FMT_QVGA
1600 * do we need to set anything else?
1601 * HSTART etc are set in set_ov_sensor_window itself */
1602 i2c_w_mask(sd, OV7670_REG_COM7,
1603 qvga ? OV7670_COM7_FMT_QVGA : OV7670_COM7_FMT_VGA,
1604 OV7670_COM7_FMT_MASK);
1607 i2c_w_mask(sd, 0x14, qvga ? 0x20 : 0x00, 0x20);
1610 i2c_w_mask(sd, 0x14, qvga ? 0x20 : 0x00, 0x20);
1616 /******** Palette-specific regs ********/
1617 /* Need to do work here for the OV7670 */
1619 if (sd->sensor == SEN_OV7610 || sd->sensor == SEN_OV76BE) {
1620 /* not valid on the OV6620/OV7620/6630? */
1621 i2c_w_mask(sd, 0x0e, 0x00, 0x40);
1624 /* The OV518 needs special treatment. Although both the OV518
1625 * and the OV6630 support a 16-bit video bus, only the 8 bit Y
1626 * bus is actually used. The UV bus is tied to ground.
1627 * Therefore, the OV6630 needs to be in 8-bit multiplexed
1630 /* OV7640 is 8-bit only */
1632 if (sd->sensor != SEN_OV6630 && sd->sensor != SEN_OV7640)
1633 i2c_w_mask(sd, 0x13, 0x00, 0x20);
1636 /******** Clock programming ********/
1637 /* The OV6620 needs special handling. This prevents the
1638 * severe banding that normally occurs */
1639 if (sd->sensor == SEN_OV6620) {
1642 i2c_w(sd, 0x2a, 0x04);
1643 i2c_w(sd, 0x11, win->clockdiv);
1644 i2c_w(sd, 0x2a, 0x84);
1645 /* This next setting is critical. It seems to improve
1646 * the gain or the contrast. The "reserved" bits seem
1647 * to have some effect in this case. */
1648 i2c_w(sd, 0x2d, 0x85);
1649 } else if (win->clockdiv >= 0) {
1650 i2c_w(sd, 0x11, win->clockdiv);
1653 /******** Special Features ********/
1654 /* no evidence this is possible with OV7670, either */
1656 if (sd->sensor != SEN_OV7640 && sd->sensor != SEN_OV7670)
1657 i2c_w_mask(sd, 0x12, 0x00, 0x02);
1659 /* Enable auto white balance */
1660 if (sd->sensor == SEN_OV7670)
1661 i2c_w_mask(sd, OV7670_REG_COM8, OV7670_COM8_AWB,
1664 i2c_w_mask(sd, 0x12, 0x04, 0x04);
1666 /* This will go away as soon as ov51x_mode_init_sensor_regs() */
1667 /* is fully tested. */
1668 /* 7620/6620/6630? don't have register 0x35, so play it safe */
1669 if (sd->sensor == SEN_OV7610 || sd->sensor == SEN_OV76BE) {
1670 if (win->width == 640 /*&& win->height == 480*/)
1671 i2c_w(sd, 0x35, 0x9e);
1673 i2c_w(sd, 0x35, 0x1e);
1678 static int set_ov_sensor_window(struct sd *sd,
1679 struct ovsensor_window *win)
1681 int hwsbase, hwebase, vwsbase, vwebase, hwscale, vwscale;
1682 int ret, hstart, hstop, vstop, vstart;
1685 /* The different sensor ICs handle setting up of window differently.
1686 * IF YOU SET IT WRONG, YOU WILL GET ALL ZERO ISOC DATA FROM OV51x!! */
1687 switch (sd->sensor) {
1698 vwsbase = vwebase = 0x05;
1708 hwsbase = 0x2f; /* From 7620.SET (spec is wrong) */
1710 vwsbase = vwebase = 0x05;
1715 vwsbase = vwebase = 0x03;
1718 /*handling of OV7670 hardware sensor start and stop values
1719 * is very odd, compared to the other OV sensors */
1720 vwsbase = vwebase = hwebase = hwsbase = 0x00;
1726 switch (sd->sensor) {
1729 if (win->quarter) { /* QCIF */
1734 vwscale = 1; /* The datasheet says 0;
1739 if (win->quarter) { /* QSVGA */
1747 default: /* SEN_OV7xx0 */
1748 if (win->quarter) { /* QVGA */
1757 ret = mode_init_ov_sensor_regs(sd, win);
1761 if (sd->sensor == SEN_OV8610) {
1762 i2c_w_mask(sd, 0x2d, 0x05, 0x40);
1763 /* old 0x95, new 0x05 from windrv 090403 */
1764 /* bits 5-7: reserved */
1765 i2c_w_mask(sd, 0x28, 0x20, 0x20);
1766 /* bit 5: progressive mode on */
1769 /* The below is wrong for OV7670s because their window registers
1770 * only store the high bits in 0x17 to 0x1a */
1772 /* SRH Use sd->max values instead of requested win values */
1773 /* SCS Since we're sticking with only the max hardware widths
1774 * for a given mode */
1775 /* I can hard code this for OV7670s */
1776 /* Yes, these numbers do look odd, but they're tested and work! */
1777 if (sd->sensor == SEN_OV7670) {
1778 if (win->quarter) { /* QVGA from ov7670.c by
1779 * Jonathan Corbet */
1790 /* OV7670 hardware window registers are split across
1791 * multiple locations */
1792 i2c_w(sd, OV7670_REG_HSTART, (hstart >> 3) & 0xff);
1793 i2c_w(sd, OV7670_REG_HSTOP, (hstop >> 3) & 0xff);
1794 v = i2c_r(sd, OV7670_REG_HREF);
1795 v = (v & 0xc0) | ((hstop & 0x7) << 3) | (hstart & 0x07);
1796 msleep(10); /* need to sleep between read and write to
1798 i2c_w(sd, OV7670_REG_HREF, v);
1800 i2c_w(sd, OV7670_REG_VSTART, (vstart >> 2) & 0xff);
1801 i2c_w(sd, OV7670_REG_VSTOP, (vstop >> 2) & 0xff);
1802 v = i2c_r(sd, OV7670_REG_VREF);
1803 v = (v & 0xc0) | ((vstop & 0x3) << 2) | (vstart & 0x03);
1804 msleep(10); /* need to sleep between read and write to
1806 i2c_w(sd, OV7670_REG_VREF, v);
1809 i2c_w(sd, 0x17, hwsbase + (win->x >> hwscale));
1810 i2c_w(sd, 0x18, hwebase + ((win->x + win->width) >> hwscale));
1811 i2c_w(sd, 0x19, vwsbase + (win->y >> vwscale));
1812 i2c_w(sd, 0x1a, vwebase + ((win->y + win->height) >> vwscale));
1817 static int ov_sensor_mode_setup(struct sd *sd,
1818 int width, int height)
1820 struct ovsensor_window win;
1822 /* win.format = mode; */
1824 /* Unless subcapture is enabled,
1825 * center the image window and downsample
1826 * if possible to increase the field of view */
1827 /* NOTE: OV518(+) and OV519 does downsampling on its own */
1829 win.height = height;
1830 if (width == sd->maxwidth)
1836 win.x = (win.width - width) / 2;
1837 win.y = (win.height - height) / 2;
1839 /* Clock is determined by OV519 frame rate code */
1840 win.clockdiv = sd->clockdiv;
1842 PDEBUG(D_CONF, "Setting clock divider to %d", win.clockdiv);
1843 return set_ov_sensor_window(sd, &win);
1846 /* -- start the camera -- */
1847 static void sd_start(struct gspca_dev *gspca_dev)
1849 struct sd *sd = (struct sd *) gspca_dev;
1853 ret = ov519_mode_init_regs(sd, gspca_dev->width, gspca_dev->height);
1856 ret = ov_sensor_mode_setup(sd, gspca_dev->width, gspca_dev->height);
1860 ret = ov51x_restart((struct sd *) gspca_dev);
1863 PDEBUG(D_STREAM, "camera started alt: 0x%02x", gspca_dev->alt);
1864 ov51x_led_control(sd, 1);
1867 PDEBUG(D_ERR, "camera start error:%d", ret);
1870 static void sd_stopN(struct gspca_dev *gspca_dev)
1872 ov51x_stop((struct sd *) gspca_dev);
1873 ov51x_led_control((struct sd *) gspca_dev, 0);
1876 static void sd_stop0(struct gspca_dev *gspca_dev)
1880 static void sd_close(struct gspca_dev *gspca_dev)
1884 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
1885 struct gspca_frame *frame, /* target */
1886 unsigned char *data, /* isoc packet */
1887 int len) /* iso packet length */
1889 /* Header of ov519 is 16 bytes:
1890 * Byte Value Description
1894 * 3 0xXX 0x50 = SOF, 0x51 = EOF
1895 * 9 0xXX 0x01 initial frame without data,
1896 * 0x00 standard frame with image
1897 * 14 Lo in EOF: length of image data / 8
1901 if (data[0] == 0xff && data[1] == 0xff && data[2] == 0xff) {
1903 case 0x50: /* start of frame */
1908 if (data[0] == 0xff || data[1] == 0xd8)
1909 gspca_frame_add(gspca_dev, FIRST_PACKET, frame,
1912 gspca_dev->last_packet_type = DISCARD_PACKET;
1914 case 0x51: /* end of frame */
1916 gspca_dev->last_packet_type = DISCARD_PACKET;
1917 gspca_frame_add(gspca_dev, LAST_PACKET, frame,
1923 /* intermediate packet */
1924 gspca_frame_add(gspca_dev, INTER_PACKET, frame,
1928 /* -- management routines -- */
1930 static void setbrightness(struct gspca_dev *gspca_dev)
1932 struct sd *sd = (struct sd *) gspca_dev;
1934 /* int was_streaming; */
1936 val = sd->brightness;
1937 PDEBUG(D_CONF, "brightness:%d", val);
1938 /* was_streaming = gspca_dev->streaming;
1939 * if (was_streaming)
1940 * ov51x_stop(sd); */
1941 switch (sd->sensor) {
1948 i2c_w(sd, OV7610_REG_BRT, val);
1951 /* 7620 doesn't like manual changes when in auto mode */
1953 * if (!sd->auto_brt) */
1954 i2c_w(sd, OV7610_REG_BRT, val);
1957 /*jfm - from windblows
1958 * i2c_w_mask(sd, OV7670_REG_COM8, 0, OV7670_COM8_AEC); */
1959 i2c_w(sd, OV7670_REG_BRIGHT, ov7670_abs_to_sm(val));
1962 /* if (was_streaming)
1963 * ov51x_restart(sd); */
1966 static void setcontrast(struct gspca_dev *gspca_dev)
1968 struct sd *sd = (struct sd *) gspca_dev;
1970 /* int was_streaming; */
1973 PDEBUG(D_CONF, "contrast:%d", val);
1974 /* was_streaming = gspca_dev->streaming;
1977 switch (sd->sensor) {
1980 i2c_w(sd, OV7610_REG_CNT, val);
1983 i2c_w_mask(sd, OV7610_REG_CNT, val >> 4, 0x0f);
1985 static __u8 ctab[] = {
1986 0x03, 0x09, 0x0b, 0x0f, 0x53, 0x6f, 0x35, 0x7f
1989 /* Use Y gamma control instead. Bit 0 enables it. */
1990 i2c_w(sd, 0x64, ctab[val >> 5]);
1994 static __u8 ctab[] = {
1995 0x01, 0x05, 0x09, 0x11, 0x15, 0x35, 0x37, 0x57,
1996 0x5b, 0xa5, 0xa7, 0xc7, 0xc9, 0xcf, 0xef, 0xff
1999 /* Use Y gamma control instead. Bit 0 enables it. */
2000 i2c_w(sd, 0x64, ctab[val >> 4]);
2004 /* Use gain control instead. */
2005 i2c_w(sd, OV7610_REG_GAIN, val >> 2);
2008 /* check that this isn't just the same as ov7610 */
2009 i2c_w(sd, OV7670_REG_CONTRAS, val >> 1);
2012 /* if (was_streaming)
2013 ov51x_restart(sd); */
2016 static void setcolors(struct gspca_dev *gspca_dev)
2018 struct sd *sd = (struct sd *) gspca_dev;
2020 /* int was_streaming; */
2023 PDEBUG(D_CONF, "saturation:%d", val);
2024 /* was_streaming = gspca_dev->streaming;
2027 switch (sd->sensor) {
2033 i2c_w(sd, OV7610_REG_SAT, val);
2036 /* Use UV gamma control instead. Bits 0 & 7 are reserved. */
2037 /* rc = ov_i2c_write(sd->dev, 0x62, (val >> 9) & 0x7e);
2040 i2c_w(sd, OV7610_REG_SAT, val);
2043 i2c_w(sd, OV7610_REG_SAT, val & 0xf0);
2046 /* supported later once I work out how to do it
2047 * transparently fail now! */
2048 /* set REG_COM13 values for UV sat auto mode */
2051 /* if (was_streaming)
2052 ov51x_restart(sd); */
2055 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
2057 struct sd *sd = (struct sd *) gspca_dev;
2059 sd->brightness = val;
2060 setbrightness(gspca_dev);
2064 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
2066 struct sd *sd = (struct sd *) gspca_dev;
2068 *val = sd->brightness;
2072 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
2074 struct sd *sd = (struct sd *) gspca_dev;
2077 setcontrast(gspca_dev);
2081 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
2083 struct sd *sd = (struct sd *) gspca_dev;
2085 *val = sd->contrast;
2089 static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val)
2091 struct sd *sd = (struct sd *) gspca_dev;
2094 setcolors(gspca_dev);
2098 static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val)
2100 struct sd *sd = (struct sd *) gspca_dev;
2106 /* sub-driver description */
2107 static struct sd_desc sd_desc = {
2108 .name = MODULE_NAME,
2110 .nctrls = ARRAY_SIZE(sd_ctrls),
2111 .config = sd_config,
2117 .pkt_scan = sd_pkt_scan,
2120 /* -- module initialisation -- */
2121 #define DVNM(name) .driver_info = (kernel_ulong_t) name
2122 static __devinitdata struct usb_device_id device_table[] = {
2123 {USB_DEVICE(0x041e, 0x4052), DVNM("Creative Live! VISTA IM")},
2124 {USB_DEVICE(0x041e, 0x405f), DVNM("Creative Live! VISTA VF0330")},
2125 {USB_DEVICE(0x041e, 0x4060), DVNM("Creative Live! VISTA VF0350")},
2126 {USB_DEVICE(0x041e, 0x4061), DVNM("Creative Live! VISTA VF0400")},
2127 {USB_DEVICE(0x041e, 0x4064), DVNM("Creative Live! VISTA VF0420")},
2128 {USB_DEVICE(0x041e, 0x4068), DVNM("Creative Live! VISTA VF0470")},
2129 {USB_DEVICE(0x045e, 0x028c), DVNM("Microsoft xbox cam")},
2130 {USB_DEVICE(0x054c, 0x0154), DVNM("Sonny toy4")},
2131 {USB_DEVICE(0x054c, 0x0155), DVNM("Sonny toy5")},
2132 {USB_DEVICE(0x05a9, 0x0519), DVNM("OmniVision")},
2133 {USB_DEVICE(0x05a9, 0x0530), DVNM("OmniVision")},
2134 {USB_DEVICE(0x05a9, 0x4519), DVNM("OmniVision")},
2135 {USB_DEVICE(0x05a9, 0x8519), DVNM("OmniVision")},
2139 MODULE_DEVICE_TABLE(usb, device_table);
2141 /* -- device connect -- */
2142 static int sd_probe(struct usb_interface *intf,
2143 const struct usb_device_id *id)
2145 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
2149 static struct usb_driver sd_driver = {
2150 .name = MODULE_NAME,
2151 .id_table = device_table,
2153 .disconnect = gspca_disconnect,
2156 /* -- module insert / remove -- */
2157 static int __init sd_mod_init(void)
2159 if (usb_register(&sd_driver) < 0)
2161 PDEBUG(D_PROBE, "v%s registered", version);
2164 static void __exit sd_mod_exit(void)
2166 usb_deregister(&sd_driver);
2167 PDEBUG(D_PROBE, "deregistered");
2170 module_init(sd_mod_init);
2171 module_exit(sd_mod_exit);
2173 module_param(frame_rate, int, 0644);
2174 MODULE_PARM_DESC(frame_rate, "Frame rate (5, 10, 15, 20 or 30 fps)");