2 * ov534-ov7xxx gspca driver
4 * Copyright (C) 2008 Antonio Ospite <ospite@studenti.unina.it>
5 * Copyright (C) 2008 Jim Paris <jim@jtan.com>
6 * Copyright (C) 2009 Jean-Francois Moine http://moinejf.free.fr
8 * Based on a prototype written by Mark Ferrell <majortrips@gmail.com>
9 * USB protocol reverse engineered by Jim Paris <jim@jtan.com>
10 * https://jim.sh/svn/jim/devl/playstation/ps3/eye/test/
12 * PS3 Eye camera enhanced by Richard Kaswy http://kaswy.free.fr
13 * PS3 Eye camera - brightness, contrast, awb, agc, aec controls
14 * added by Max Thrun <bear24rw@gmail.com>
15 * PS3 Eye camera - FPS range extended by Joseph Howse
16 * <josephhowse@nummist.com> http://nummist.com
18 * This program is free software; you can redistribute it and/or modify
19 * it under the terms of the GNU General Public License as published by
20 * the Free Software Foundation; either version 2 of the License, or
23 * This program is distributed in the hope that it will be useful,
24 * but WITHOUT ANY WARRANTY; without even the implied warranty of
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
26 * GNU General Public License for more details.
28 * You should have received a copy of the GNU General Public License
29 * along with this program; if not, write to the Free Software
30 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
33 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
35 #define MODULE_NAME "ov534"
39 #include <linux/fixp-arith.h>
40 #include <media/v4l2-ctrls.h>
42 #define OV534_REG_ADDRESS 0xf1 /* sensor address */
43 #define OV534_REG_SUBADDR 0xf2
44 #define OV534_REG_WRITE 0xf3
45 #define OV534_REG_READ 0xf4
46 #define OV534_REG_OPERATION 0xf5
47 #define OV534_REG_STATUS 0xf6
49 #define OV534_OP_WRITE_3 0x37
50 #define OV534_OP_WRITE_2 0x33
51 #define OV534_OP_READ_2 0xf9
53 #define CTRL_TIMEOUT 500
55 MODULE_AUTHOR("Antonio Ospite <ospite@studenti.unina.it>");
56 MODULE_DESCRIPTION("GSPCA/OV534 USB Camera Driver");
57 MODULE_LICENSE("GPL");
59 /* specific webcam descriptor */
61 struct gspca_dev gspca_dev; /* !! must be the first item */
63 struct v4l2_ctrl_handler ctrl_handler;
64 struct v4l2_ctrl *hue;
65 struct v4l2_ctrl *saturation;
66 struct v4l2_ctrl *brightness;
67 struct v4l2_ctrl *contrast;
68 struct { /* gain control cluster */
69 struct v4l2_ctrl *autogain;
70 struct v4l2_ctrl *gain;
72 struct v4l2_ctrl *autowhitebalance;
73 struct { /* exposure control cluster */
74 struct v4l2_ctrl *autoexposure;
75 struct v4l2_ctrl *exposure;
77 struct v4l2_ctrl *sharpness;
78 struct v4l2_ctrl *hflip;
79 struct v4l2_ctrl *vflip;
80 struct v4l2_ctrl *plfreq;
94 static int sd_start(struct gspca_dev *gspca_dev);
95 static void sd_stopN(struct gspca_dev *gspca_dev);
98 static const struct v4l2_pix_format ov772x_mode[] = {
99 {320, 240, V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE,
100 .bytesperline = 320 * 2,
101 .sizeimage = 320 * 240 * 2,
102 .colorspace = V4L2_COLORSPACE_SRGB,
104 {640, 480, V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE,
105 .bytesperline = 640 * 2,
106 .sizeimage = 640 * 480 * 2,
107 .colorspace = V4L2_COLORSPACE_SRGB,
110 static const struct v4l2_pix_format ov767x_mode[] = {
111 {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
113 .sizeimage = 320 * 240 * 3 / 8 + 590,
114 .colorspace = V4L2_COLORSPACE_JPEG},
115 {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
117 .sizeimage = 640 * 480 * 3 / 8 + 590,
118 .colorspace = V4L2_COLORSPACE_JPEG},
121 static const u8 qvga_rates[] = {187, 150, 137, 125, 100, 75, 60, 50, 37, 30};
122 static const u8 vga_rates[] = {60, 50, 40, 30, 15};
124 static const struct framerates ov772x_framerates[] = {
127 .nrates = ARRAY_SIZE(qvga_rates),
131 .nrates = ARRAY_SIZE(vga_rates),
140 static const u8 bridge_init_767x[][2] = {
141 /* comments from the ms-win file apollo7670.set */
171 {0xc0, 0x50}, /* HSize 640 */
172 {0xc1, 0x3c}, /* VSize 480 */
173 {0x34, 0x05}, /* enable Audio Suspend mode */
174 {0xc2, 0x0c}, /* Input YUV */
175 {0xc3, 0xf9}, /* enable PRE */
176 {0x34, 0x05}, /* enable Audio Suspend mode */
177 {0xe7, 0x2e}, /* this solves failure of "SuspendResumeTest" */
178 {0x31, 0xf9}, /* enable 1.8V Suspend */
179 {0x35, 0x02}, /* turn on JPEG */
181 {0x25, 0x42}, /* GPIO[8]:Input */
182 {0x94, 0x11}, /* If the default setting is loaded when
183 * system boots up, this flag is closed here */
185 static const u8 sensor_init_767x[][2] = {
203 {0x7a, 0x2a}, /* set Gamma=1.6 below */
223 {0x14, 0x38}, /* gain max 16x */
303 {0x41, 0x38}, /* jfm: auto sharpness + auto de-noise */
307 {0xa4, 0x8a}, /* Night mode trigger point */
340 static const u8 bridge_start_vga_767x[][2] = {
348 {0x35, 0x02}, /* turn on JPEG */
350 {0xda, 0x00}, /* for higher clock rate(30fps) */
351 {0x34, 0x05}, /* enable Audio Suspend mode */
352 {0xc3, 0xf9}, /* enable PRE */
353 {0x8c, 0x00}, /* CIF VSize LSB[2:0] */
354 {0x8d, 0x1c}, /* output YUV */
355 /* {0x34, 0x05}, * enable Audio Suspend mode (?) */
356 {0x50, 0x00}, /* H/V divider=0 */
357 {0x51, 0xa0}, /* input H=640/4 */
358 {0x52, 0x3c}, /* input V=480/4 */
359 {0x53, 0x00}, /* offset X=0 */
360 {0x54, 0x00}, /* offset Y=0 */
361 {0x55, 0x00}, /* H/V size[8]=0 */
362 {0x57, 0x00}, /* H-size[9]=0 */
363 {0x5c, 0x00}, /* output size[9:8]=0 */
364 {0x5a, 0xa0}, /* output H=640/4 */
365 {0x5b, 0x78}, /* output V=480/4 */
370 static const u8 sensor_start_vga_767x[][2] = {
376 static const u8 bridge_start_qvga_767x[][2] = {
384 {0x35, 0x02}, /* turn on JPEG */
386 {0xc0, 0x50}, /* CIF HSize 640 */
387 {0xc1, 0x3c}, /* CIF VSize 480 */
388 {0x8c, 0x00}, /* CIF VSize LSB[2:0] */
389 {0x8d, 0x1c}, /* output YUV */
390 {0x34, 0x05}, /* enable Audio Suspend mode */
391 {0xc2, 0x4c}, /* output YUV and Enable DCW */
392 {0xc3, 0xf9}, /* enable PRE */
393 {0x1c, 0x00}, /* indirect addressing */
394 {0x1d, 0x48}, /* output YUV422 */
395 {0x50, 0x89}, /* H/V divider=/2; plus DCW AVG */
396 {0x51, 0xa0}, /* DCW input H=640/4 */
397 {0x52, 0x78}, /* DCW input V=480/4 */
398 {0x53, 0x00}, /* offset X=0 */
399 {0x54, 0x00}, /* offset Y=0 */
400 {0x55, 0x00}, /* H/V size[8]=0 */
401 {0x57, 0x00}, /* H-size[9]=0 */
402 {0x5c, 0x00}, /* DCW output size[9:8]=0 */
403 {0x5a, 0x50}, /* DCW output H=320/4 */
404 {0x5b, 0x3c}, /* DCW output V=240/4 */
409 static const u8 sensor_start_qvga_767x[][2] = {
416 static const u8 bridge_init_772x[][2] = {
455 { 0x1d, 0x02 }, /* payload size 0x0200 * 4 = 2048 bytes */
456 { 0x1d, 0x00 }, /* payload size */
458 { 0x1d, 0x02 }, /* frame size 0x025800 * 4 = 614400 */
459 { 0x1d, 0x58 }, /* frame size */
460 { 0x1d, 0x00 }, /* frame size */
463 { 0x1d, 0x08 }, /* turn on UVC header */
464 { 0x1d, 0x0e }, /* .. */
474 static const u8 sensor_init_772x[][2] = {
477 /*fixme: better have a delay?*/
500 { 0x63, 0xaa }, /* AWB - was e0 */
503 { 0x13, 0xf0 }, /* com8 */
516 { 0x13, 0xff }, /* AWB */
564 { 0x8e, 0x00 }, /* De-noise threshold */
567 static const u8 bridge_start_vga_772x[][2] = {
578 static const u8 sensor_start_vga_772x[][2] = {
588 static const u8 bridge_start_qvga_772x[][2] = {
599 static const u8 sensor_start_qvga_772x[][2] = {
610 static void ov534_reg_write(struct gspca_dev *gspca_dev, u16 reg, u8 val)
612 struct usb_device *udev = gspca_dev->dev;
615 if (gspca_dev->usb_err < 0)
618 PDEBUG(D_USBO, "SET 01 0000 %04x %02x", reg, val);
619 gspca_dev->usb_buf[0] = val;
620 ret = usb_control_msg(udev,
621 usb_sndctrlpipe(udev, 0),
623 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
624 0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT);
626 pr_err("write failed %d\n", ret);
627 gspca_dev->usb_err = ret;
631 static u8 ov534_reg_read(struct gspca_dev *gspca_dev, u16 reg)
633 struct usb_device *udev = gspca_dev->dev;
636 if (gspca_dev->usb_err < 0)
638 ret = usb_control_msg(udev,
639 usb_rcvctrlpipe(udev, 0),
641 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
642 0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT);
643 PDEBUG(D_USBI, "GET 01 0000 %04x %02x", reg, gspca_dev->usb_buf[0]);
645 pr_err("read failed %d\n", ret);
646 gspca_dev->usb_err = ret;
648 * Make sure the result is zeroed to avoid uninitialized
651 gspca_dev->usb_buf[0] = 0;
653 return gspca_dev->usb_buf[0];
656 /* Two bits control LED: 0x21 bit 7 and 0x23 bit 7.
657 * (direction and output)? */
658 static void ov534_set_led(struct gspca_dev *gspca_dev, int status)
662 PDEBUG(D_CONF, "led status: %d", status);
664 data = ov534_reg_read(gspca_dev, 0x21);
666 ov534_reg_write(gspca_dev, 0x21, data);
668 data = ov534_reg_read(gspca_dev, 0x23);
674 ov534_reg_write(gspca_dev, 0x23, data);
677 data = ov534_reg_read(gspca_dev, 0x21);
679 ov534_reg_write(gspca_dev, 0x21, data);
683 static int sccb_check_status(struct gspca_dev *gspca_dev)
688 for (i = 0; i < 5; i++) {
690 data = ov534_reg_read(gspca_dev, OV534_REG_STATUS);
700 PERR("sccb status 0x%02x, attempt %d/5",
707 static void sccb_reg_write(struct gspca_dev *gspca_dev, u8 reg, u8 val)
709 PDEBUG(D_USBO, "sccb write: %02x %02x", reg, val);
710 ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
711 ov534_reg_write(gspca_dev, OV534_REG_WRITE, val);
712 ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_3);
714 if (!sccb_check_status(gspca_dev)) {
715 pr_err("sccb_reg_write failed\n");
716 gspca_dev->usb_err = -EIO;
720 static u8 sccb_reg_read(struct gspca_dev *gspca_dev, u16 reg)
722 ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
723 ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_2);
724 if (!sccb_check_status(gspca_dev))
725 pr_err("sccb_reg_read failed 1\n");
727 ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_READ_2);
728 if (!sccb_check_status(gspca_dev))
729 pr_err("sccb_reg_read failed 2\n");
731 return ov534_reg_read(gspca_dev, OV534_REG_READ);
734 /* output a bridge sequence (reg - val) */
735 static void reg_w_array(struct gspca_dev *gspca_dev,
736 const u8 (*data)[2], int len)
739 ov534_reg_write(gspca_dev, (*data)[0], (*data)[1]);
744 /* output a sensor sequence (reg - val) */
745 static void sccb_w_array(struct gspca_dev *gspca_dev,
746 const u8 (*data)[2], int len)
749 if ((*data)[0] != 0xff) {
750 sccb_reg_write(gspca_dev, (*data)[0], (*data)[1]);
752 sccb_reg_read(gspca_dev, (*data)[1]);
753 sccb_reg_write(gspca_dev, 0xff, 0x00);
759 /* ov772x specific controls */
760 static void set_frame_rate(struct gspca_dev *gspca_dev)
762 struct sd *sd = (struct sd *) gspca_dev;
770 const struct rate_s *r;
771 static const struct rate_s rate_0[] = { /* 640x480 */
772 {60, 0x01, 0xc1, 0x04},
773 {50, 0x01, 0x41, 0x02},
774 {40, 0x02, 0xc1, 0x04},
775 {30, 0x04, 0x81, 0x02},
776 {15, 0x03, 0x41, 0x04},
778 static const struct rate_s rate_1[] = { /* 320x240 */
779 /* {205, 0x01, 0xc1, 0x02}, * 205 FPS: video is partly corrupt */
780 {187, 0x01, 0x81, 0x02}, /* 187 FPS or below: video is valid */
781 {150, 0x01, 0xc1, 0x04},
782 {137, 0x02, 0xc1, 0x02},
783 {125, 0x02, 0x81, 0x02},
784 {100, 0x02, 0xc1, 0x04},
785 {75, 0x03, 0xc1, 0x04},
786 {60, 0x04, 0xc1, 0x04},
787 {50, 0x02, 0x41, 0x04},
788 {37, 0x03, 0x41, 0x04},
789 {30, 0x04, 0x41, 0x04},
792 if (sd->sensor != SENSOR_OV772x)
794 if (gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv == 0) {
796 i = ARRAY_SIZE(rate_0);
799 i = ARRAY_SIZE(rate_1);
802 if (sd->frame_rate >= r->fps)
807 sccb_reg_write(gspca_dev, 0x11, r->r11);
808 sccb_reg_write(gspca_dev, 0x0d, r->r0d);
809 ov534_reg_write(gspca_dev, 0xe5, r->re5);
811 PDEBUG(D_PROBE, "frame_rate: %d", r->fps);
814 static void sethue(struct gspca_dev *gspca_dev, s32 val)
816 struct sd *sd = (struct sd *) gspca_dev;
818 if (sd->sensor == SENSOR_OV767x) {
824 /* According to the datasheet the registers expect HUESIN and
825 * HUECOS to be the result of the trigonometric functions,
828 * The 0x7fff here represents the maximum absolute value
829 * returned byt fixp_sin and fixp_cos, so the scaling will
830 * consider the result like in the interval [-1.0, 1.0].
832 huesin = fixp_sin16(val) * 0x80 / 0x7fff;
833 huecos = fixp_cos16(val) * 0x80 / 0x7fff;
836 sccb_reg_write(gspca_dev, 0xab,
837 sccb_reg_read(gspca_dev, 0xab) | 0x2);
840 sccb_reg_write(gspca_dev, 0xab,
841 sccb_reg_read(gspca_dev, 0xab) & ~0x2);
844 sccb_reg_write(gspca_dev, 0xa9, (u8)huecos);
845 sccb_reg_write(gspca_dev, 0xaa, (u8)huesin);
849 static void setsaturation(struct gspca_dev *gspca_dev, s32 val)
851 struct sd *sd = (struct sd *) gspca_dev;
853 if (sd->sensor == SENSOR_OV767x) {
855 static u8 color_tb[][6] = {
856 {0x42, 0x42, 0x00, 0x11, 0x30, 0x41},
857 {0x52, 0x52, 0x00, 0x16, 0x3c, 0x52},
858 {0x66, 0x66, 0x00, 0x1b, 0x4b, 0x66},
859 {0x80, 0x80, 0x00, 0x22, 0x5e, 0x80},
860 {0x9a, 0x9a, 0x00, 0x29, 0x71, 0x9a},
861 {0xb8, 0xb8, 0x00, 0x31, 0x87, 0xb8},
862 {0xdd, 0xdd, 0x00, 0x3b, 0xa2, 0xdd},
865 for (i = 0; i < ARRAY_SIZE(color_tb[0]); i++)
866 sccb_reg_write(gspca_dev, 0x4f + i, color_tb[val][i]);
868 sccb_reg_write(gspca_dev, 0xa7, val); /* U saturation */
869 sccb_reg_write(gspca_dev, 0xa8, val); /* V saturation */
873 static void setbrightness(struct gspca_dev *gspca_dev, s32 val)
875 struct sd *sd = (struct sd *) gspca_dev;
877 if (sd->sensor == SENSOR_OV767x) {
880 sccb_reg_write(gspca_dev, 0x55, val); /* bright */
882 sccb_reg_write(gspca_dev, 0x9b, val);
886 static void setcontrast(struct gspca_dev *gspca_dev, s32 val)
888 struct sd *sd = (struct sd *) gspca_dev;
890 if (sd->sensor == SENSOR_OV767x)
891 sccb_reg_write(gspca_dev, 0x56, val); /* contras */
893 sccb_reg_write(gspca_dev, 0x9c, val);
896 static void setgain(struct gspca_dev *gspca_dev, s32 val)
898 switch (val & 0x30) {
916 sccb_reg_write(gspca_dev, 0x00, val);
919 static s32 getgain(struct gspca_dev *gspca_dev)
921 return sccb_reg_read(gspca_dev, 0x00);
924 static void setexposure(struct gspca_dev *gspca_dev, s32 val)
926 struct sd *sd = (struct sd *) gspca_dev;
928 if (sd->sensor == SENSOR_OV767x) {
930 /* set only aec[9:2] */
931 sccb_reg_write(gspca_dev, 0x10, val); /* aech */
934 /* 'val' is one byte and represents half of the exposure value
935 * we are going to set into registers, a two bytes value:
937 * MSB: ((u16) val << 1) >> 8 == val >> 7
938 * LSB: ((u16) val << 1) & 0xff == val << 1
940 sccb_reg_write(gspca_dev, 0x08, val >> 7);
941 sccb_reg_write(gspca_dev, 0x10, val << 1);
945 static s32 getexposure(struct gspca_dev *gspca_dev)
947 struct sd *sd = (struct sd *) gspca_dev;
949 if (sd->sensor == SENSOR_OV767x) {
950 /* get only aec[9:2] */
951 return sccb_reg_read(gspca_dev, 0x10); /* aech */
953 u8 hi = sccb_reg_read(gspca_dev, 0x08);
954 u8 lo = sccb_reg_read(gspca_dev, 0x10);
955 return (hi << 8 | lo) >> 1;
959 static void setagc(struct gspca_dev *gspca_dev, s32 val)
962 sccb_reg_write(gspca_dev, 0x13,
963 sccb_reg_read(gspca_dev, 0x13) | 0x04);
964 sccb_reg_write(gspca_dev, 0x64,
965 sccb_reg_read(gspca_dev, 0x64) | 0x03);
967 sccb_reg_write(gspca_dev, 0x13,
968 sccb_reg_read(gspca_dev, 0x13) & ~0x04);
969 sccb_reg_write(gspca_dev, 0x64,
970 sccb_reg_read(gspca_dev, 0x64) & ~0x03);
974 static void setawb(struct gspca_dev *gspca_dev, s32 val)
976 struct sd *sd = (struct sd *) gspca_dev;
979 sccb_reg_write(gspca_dev, 0x13,
980 sccb_reg_read(gspca_dev, 0x13) | 0x02);
981 if (sd->sensor == SENSOR_OV772x)
982 sccb_reg_write(gspca_dev, 0x63,
983 sccb_reg_read(gspca_dev, 0x63) | 0xc0);
985 sccb_reg_write(gspca_dev, 0x13,
986 sccb_reg_read(gspca_dev, 0x13) & ~0x02);
987 if (sd->sensor == SENSOR_OV772x)
988 sccb_reg_write(gspca_dev, 0x63,
989 sccb_reg_read(gspca_dev, 0x63) & ~0xc0);
993 static void setaec(struct gspca_dev *gspca_dev, s32 val)
995 struct sd *sd = (struct sd *) gspca_dev;
998 data = sd->sensor == SENSOR_OV767x ?
999 0x05 : /* agc + aec */
1002 case V4L2_EXPOSURE_AUTO:
1003 sccb_reg_write(gspca_dev, 0x13,
1004 sccb_reg_read(gspca_dev, 0x13) | data);
1006 case V4L2_EXPOSURE_MANUAL:
1007 sccb_reg_write(gspca_dev, 0x13,
1008 sccb_reg_read(gspca_dev, 0x13) & ~data);
1013 static void setsharpness(struct gspca_dev *gspca_dev, s32 val)
1015 sccb_reg_write(gspca_dev, 0x91, val); /* Auto de-noise threshold */
1016 sccb_reg_write(gspca_dev, 0x8e, val); /* De-noise threshold */
1019 static void sethvflip(struct gspca_dev *gspca_dev, s32 hflip, s32 vflip)
1021 struct sd *sd = (struct sd *) gspca_dev;
1024 if (sd->sensor == SENSOR_OV767x) {
1025 val = sccb_reg_read(gspca_dev, 0x1e); /* mvfp */
1031 sccb_reg_write(gspca_dev, 0x1e, val);
1033 val = sccb_reg_read(gspca_dev, 0x0c);
1039 sccb_reg_write(gspca_dev, 0x0c, val);
1043 static void setlightfreq(struct gspca_dev *gspca_dev, s32 val)
1045 struct sd *sd = (struct sd *) gspca_dev;
1047 val = val ? 0x9e : 0x00;
1048 if (sd->sensor == SENSOR_OV767x) {
1049 sccb_reg_write(gspca_dev, 0x2a, 0x00);
1051 val = 0x9d; /* insert dummy to 25fps for 50Hz */
1053 sccb_reg_write(gspca_dev, 0x2b, val);
1057 /* this function is called at probe time */
1058 static int sd_config(struct gspca_dev *gspca_dev,
1059 const struct usb_device_id *id)
1061 struct sd *sd = (struct sd *) gspca_dev;
1064 cam = &gspca_dev->cam;
1066 cam->cam_mode = ov772x_mode;
1067 cam->nmodes = ARRAY_SIZE(ov772x_mode);
1069 sd->frame_rate = 30;
1074 static int ov534_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
1076 struct sd *sd = container_of(ctrl->handler, struct sd, ctrl_handler);
1077 struct gspca_dev *gspca_dev = &sd->gspca_dev;
1080 case V4L2_CID_AUTOGAIN:
1081 gspca_dev->usb_err = 0;
1082 if (ctrl->val && sd->gain && gspca_dev->streaming)
1083 sd->gain->val = getgain(gspca_dev);
1084 return gspca_dev->usb_err;
1086 case V4L2_CID_EXPOSURE_AUTO:
1087 gspca_dev->usb_err = 0;
1088 if (ctrl->val == V4L2_EXPOSURE_AUTO && sd->exposure &&
1089 gspca_dev->streaming)
1090 sd->exposure->val = getexposure(gspca_dev);
1091 return gspca_dev->usb_err;
1096 static int ov534_s_ctrl(struct v4l2_ctrl *ctrl)
1098 struct sd *sd = container_of(ctrl->handler, struct sd, ctrl_handler);
1099 struct gspca_dev *gspca_dev = &sd->gspca_dev;
1101 gspca_dev->usb_err = 0;
1102 if (!gspca_dev->streaming)
1107 sethue(gspca_dev, ctrl->val);
1109 case V4L2_CID_SATURATION:
1110 setsaturation(gspca_dev, ctrl->val);
1112 case V4L2_CID_BRIGHTNESS:
1113 setbrightness(gspca_dev, ctrl->val);
1115 case V4L2_CID_CONTRAST:
1116 setcontrast(gspca_dev, ctrl->val);
1118 case V4L2_CID_AUTOGAIN:
1119 /* case V4L2_CID_GAIN: */
1120 setagc(gspca_dev, ctrl->val);
1121 if (!gspca_dev->usb_err && !ctrl->val && sd->gain)
1122 setgain(gspca_dev, sd->gain->val);
1124 case V4L2_CID_AUTO_WHITE_BALANCE:
1125 setawb(gspca_dev, ctrl->val);
1127 case V4L2_CID_EXPOSURE_AUTO:
1128 /* case V4L2_CID_EXPOSURE: */
1129 setaec(gspca_dev, ctrl->val);
1130 if (!gspca_dev->usb_err && ctrl->val == V4L2_EXPOSURE_MANUAL &&
1132 setexposure(gspca_dev, sd->exposure->val);
1134 case V4L2_CID_SHARPNESS:
1135 setsharpness(gspca_dev, ctrl->val);
1137 case V4L2_CID_HFLIP:
1138 sethvflip(gspca_dev, ctrl->val, sd->vflip->val);
1140 case V4L2_CID_VFLIP:
1141 sethvflip(gspca_dev, sd->hflip->val, ctrl->val);
1143 case V4L2_CID_POWER_LINE_FREQUENCY:
1144 setlightfreq(gspca_dev, ctrl->val);
1147 return gspca_dev->usb_err;
1150 static const struct v4l2_ctrl_ops ov534_ctrl_ops = {
1151 .g_volatile_ctrl = ov534_g_volatile_ctrl,
1152 .s_ctrl = ov534_s_ctrl,
1155 static int sd_init_controls(struct gspca_dev *gspca_dev)
1157 struct sd *sd = (struct sd *) gspca_dev;
1158 struct v4l2_ctrl_handler *hdl = &sd->ctrl_handler;
1159 /* parameters with different values between the supported sensors */
1173 if (sd->sensor == SENSOR_OV767x) {
1177 brightness_min = -127;
1178 brightness_max = 127;
1180 contrast_max = 0x80;
1181 contrast_def = 0x40;
1182 exposure_min = 0x08;
1183 exposure_max = 0x60;
1184 exposure_def = 0x13;
1188 saturation_max = 255,
1189 saturation_def = 64,
1191 brightness_max = 255;
1201 gspca_dev->vdev.ctrl_handler = hdl;
1203 v4l2_ctrl_handler_init(hdl, 13);
1205 if (sd->sensor == SENSOR_OV772x)
1206 sd->hue = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1207 V4L2_CID_HUE, -90, 90, 1, 0);
1209 sd->saturation = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1210 V4L2_CID_SATURATION, saturation_min, saturation_max, 1,
1212 sd->brightness = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1213 V4L2_CID_BRIGHTNESS, brightness_min, brightness_max, 1,
1215 sd->contrast = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1216 V4L2_CID_CONTRAST, 0, contrast_max, 1, contrast_def);
1218 if (sd->sensor == SENSOR_OV772x) {
1219 sd->autogain = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1220 V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
1221 sd->gain = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1222 V4L2_CID_GAIN, 0, 63, 1, 20);
1225 sd->autoexposure = v4l2_ctrl_new_std_menu(hdl, &ov534_ctrl_ops,
1226 V4L2_CID_EXPOSURE_AUTO,
1227 V4L2_EXPOSURE_MANUAL, 0,
1228 V4L2_EXPOSURE_AUTO);
1229 sd->exposure = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1230 V4L2_CID_EXPOSURE, exposure_min, exposure_max, 1,
1233 sd->autowhitebalance = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1234 V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1);
1236 if (sd->sensor == SENSOR_OV772x)
1237 sd->sharpness = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1238 V4L2_CID_SHARPNESS, 0, 63, 1, 0);
1240 sd->hflip = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1241 V4L2_CID_HFLIP, 0, 1, 1, hflip_def);
1242 sd->vflip = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1243 V4L2_CID_VFLIP, 0, 1, 1, 0);
1244 sd->plfreq = v4l2_ctrl_new_std_menu(hdl, &ov534_ctrl_ops,
1245 V4L2_CID_POWER_LINE_FREQUENCY,
1246 V4L2_CID_POWER_LINE_FREQUENCY_50HZ, 0,
1247 V4L2_CID_POWER_LINE_FREQUENCY_DISABLED);
1250 pr_err("Could not initialize controls\n");
1254 if (sd->sensor == SENSOR_OV772x)
1255 v4l2_ctrl_auto_cluster(2, &sd->autogain, 0, true);
1257 v4l2_ctrl_auto_cluster(2, &sd->autoexposure, V4L2_EXPOSURE_MANUAL,
1263 /* this function is called at probe and resume time */
1264 static int sd_init(struct gspca_dev *gspca_dev)
1266 struct sd *sd = (struct sd *) gspca_dev;
1268 static const struct reg_array bridge_init[NSENSORS] = {
1269 [SENSOR_OV767x] = {bridge_init_767x, ARRAY_SIZE(bridge_init_767x)},
1270 [SENSOR_OV772x] = {bridge_init_772x, ARRAY_SIZE(bridge_init_772x)},
1272 static const struct reg_array sensor_init[NSENSORS] = {
1273 [SENSOR_OV767x] = {sensor_init_767x, ARRAY_SIZE(sensor_init_767x)},
1274 [SENSOR_OV772x] = {sensor_init_772x, ARRAY_SIZE(sensor_init_772x)},
1278 ov534_reg_write(gspca_dev, 0xe7, 0x3a);
1279 ov534_reg_write(gspca_dev, 0xe0, 0x08);
1282 /* initialize the sensor address */
1283 ov534_reg_write(gspca_dev, OV534_REG_ADDRESS, 0x42);
1286 sccb_reg_write(gspca_dev, 0x12, 0x80);
1289 /* probe the sensor */
1290 sccb_reg_read(gspca_dev, 0x0a);
1291 sensor_id = sccb_reg_read(gspca_dev, 0x0a) << 8;
1292 sccb_reg_read(gspca_dev, 0x0b);
1293 sensor_id |= sccb_reg_read(gspca_dev, 0x0b);
1294 PDEBUG(D_PROBE, "Sensor ID: %04x", sensor_id);
1296 if ((sensor_id & 0xfff0) == 0x7670) {
1297 sd->sensor = SENSOR_OV767x;
1298 gspca_dev->cam.cam_mode = ov767x_mode;
1299 gspca_dev->cam.nmodes = ARRAY_SIZE(ov767x_mode);
1301 sd->sensor = SENSOR_OV772x;
1302 gspca_dev->cam.bulk = 1;
1303 gspca_dev->cam.bulk_size = 16384;
1304 gspca_dev->cam.bulk_nurbs = 2;
1305 gspca_dev->cam.mode_framerates = ov772x_framerates;
1309 reg_w_array(gspca_dev, bridge_init[sd->sensor].val,
1310 bridge_init[sd->sensor].len);
1311 ov534_set_led(gspca_dev, 1);
1312 sccb_w_array(gspca_dev, sensor_init[sd->sensor].val,
1313 sensor_init[sd->sensor].len);
1315 sd_stopN(gspca_dev);
1316 /* set_frame_rate(gspca_dev); */
1318 return gspca_dev->usb_err;
1321 static int sd_start(struct gspca_dev *gspca_dev)
1323 struct sd *sd = (struct sd *) gspca_dev;
1325 static const struct reg_array bridge_start[NSENSORS][2] = {
1326 [SENSOR_OV767x] = {{bridge_start_qvga_767x,
1327 ARRAY_SIZE(bridge_start_qvga_767x)},
1328 {bridge_start_vga_767x,
1329 ARRAY_SIZE(bridge_start_vga_767x)}},
1330 [SENSOR_OV772x] = {{bridge_start_qvga_772x,
1331 ARRAY_SIZE(bridge_start_qvga_772x)},
1332 {bridge_start_vga_772x,
1333 ARRAY_SIZE(bridge_start_vga_772x)}},
1335 static const struct reg_array sensor_start[NSENSORS][2] = {
1336 [SENSOR_OV767x] = {{sensor_start_qvga_767x,
1337 ARRAY_SIZE(sensor_start_qvga_767x)},
1338 {sensor_start_vga_767x,
1339 ARRAY_SIZE(sensor_start_vga_767x)}},
1340 [SENSOR_OV772x] = {{sensor_start_qvga_772x,
1341 ARRAY_SIZE(sensor_start_qvga_772x)},
1342 {sensor_start_vga_772x,
1343 ARRAY_SIZE(sensor_start_vga_772x)}},
1346 /* (from ms-win trace) */
1347 if (sd->sensor == SENSOR_OV767x)
1348 sccb_reg_write(gspca_dev, 0x1e, 0x04);
1349 /* black sun enable ? */
1351 mode = gspca_dev->curr_mode; /* 0: 320x240, 1: 640x480 */
1352 reg_w_array(gspca_dev, bridge_start[sd->sensor][mode].val,
1353 bridge_start[sd->sensor][mode].len);
1354 sccb_w_array(gspca_dev, sensor_start[sd->sensor][mode].val,
1355 sensor_start[sd->sensor][mode].len);
1357 set_frame_rate(gspca_dev);
1360 sethue(gspca_dev, v4l2_ctrl_g_ctrl(sd->hue));
1361 setsaturation(gspca_dev, v4l2_ctrl_g_ctrl(sd->saturation));
1363 setagc(gspca_dev, v4l2_ctrl_g_ctrl(sd->autogain));
1364 setawb(gspca_dev, v4l2_ctrl_g_ctrl(sd->autowhitebalance));
1365 setaec(gspca_dev, v4l2_ctrl_g_ctrl(sd->autoexposure));
1367 setgain(gspca_dev, v4l2_ctrl_g_ctrl(sd->gain));
1368 setexposure(gspca_dev, v4l2_ctrl_g_ctrl(sd->exposure));
1369 setbrightness(gspca_dev, v4l2_ctrl_g_ctrl(sd->brightness));
1370 setcontrast(gspca_dev, v4l2_ctrl_g_ctrl(sd->contrast));
1372 setsharpness(gspca_dev, v4l2_ctrl_g_ctrl(sd->sharpness));
1373 sethvflip(gspca_dev, v4l2_ctrl_g_ctrl(sd->hflip),
1374 v4l2_ctrl_g_ctrl(sd->vflip));
1375 setlightfreq(gspca_dev, v4l2_ctrl_g_ctrl(sd->plfreq));
1377 ov534_set_led(gspca_dev, 1);
1378 ov534_reg_write(gspca_dev, 0xe0, 0x00);
1379 return gspca_dev->usb_err;
1382 static void sd_stopN(struct gspca_dev *gspca_dev)
1384 ov534_reg_write(gspca_dev, 0xe0, 0x09);
1385 ov534_set_led(gspca_dev, 0);
1388 /* Values for bmHeaderInfo (Video and Still Image Payload Headers, 2.4.3.3) */
1389 #define UVC_STREAM_EOH (1 << 7)
1390 #define UVC_STREAM_ERR (1 << 6)
1391 #define UVC_STREAM_STI (1 << 5)
1392 #define UVC_STREAM_RES (1 << 4)
1393 #define UVC_STREAM_SCR (1 << 3)
1394 #define UVC_STREAM_PTS (1 << 2)
1395 #define UVC_STREAM_EOF (1 << 1)
1396 #define UVC_STREAM_FID (1 << 0)
1398 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
1401 struct sd *sd = (struct sd *) gspca_dev;
1404 int remaining_len = len;
1407 payload_len = gspca_dev->cam.bulk ? 2048 : 2040;
1409 len = min(remaining_len, payload_len);
1411 /* Payloads are prefixed with a UVC-style header. We
1412 consider a frame to start when the FID toggles, or the PTS
1413 changes. A frame ends when EOF is set, and we've received
1414 the correct number of bytes. */
1416 /* Verify UVC header. Header length is always 12 */
1417 if (data[0] != 12 || len < 12) {
1418 PDEBUG(D_PACK, "bad header");
1423 if (data[1] & UVC_STREAM_ERR) {
1424 PDEBUG(D_PACK, "payload error");
1428 /* Extract PTS and FID */
1429 if (!(data[1] & UVC_STREAM_PTS)) {
1430 PDEBUG(D_PACK, "PTS not present");
1433 this_pts = (data[5] << 24) | (data[4] << 16)
1434 | (data[3] << 8) | data[2];
1435 this_fid = (data[1] & UVC_STREAM_FID) ? 1 : 0;
1437 /* If PTS or FID has changed, start a new frame. */
1438 if (this_pts != sd->last_pts || this_fid != sd->last_fid) {
1439 if (gspca_dev->last_packet_type == INTER_PACKET)
1440 gspca_frame_add(gspca_dev, LAST_PACKET,
1442 sd->last_pts = this_pts;
1443 sd->last_fid = this_fid;
1444 gspca_frame_add(gspca_dev, FIRST_PACKET,
1445 data + 12, len - 12);
1446 /* If this packet is marked as EOF, end the frame */
1447 } else if (data[1] & UVC_STREAM_EOF) {
1449 if (gspca_dev->pixfmt.pixelformat == V4L2_PIX_FMT_YUYV
1450 && gspca_dev->image_len + len - 12 !=
1451 gspca_dev->pixfmt.width *
1452 gspca_dev->pixfmt.height * 2) {
1453 PDEBUG(D_PACK, "wrong sized frame");
1456 gspca_frame_add(gspca_dev, LAST_PACKET,
1457 data + 12, len - 12);
1460 /* Add the data from this payload */
1461 gspca_frame_add(gspca_dev, INTER_PACKET,
1462 data + 12, len - 12);
1465 /* Done this payload */
1469 /* Discard data until a new frame starts. */
1470 gspca_dev->last_packet_type = DISCARD_PACKET;
1473 remaining_len -= len;
1475 } while (remaining_len > 0);
1478 /* get stream parameters (framerate) */
1479 static void sd_get_streamparm(struct gspca_dev *gspca_dev,
1480 struct v4l2_streamparm *parm)
1482 struct v4l2_captureparm *cp = &parm->parm.capture;
1483 struct v4l2_fract *tpf = &cp->timeperframe;
1484 struct sd *sd = (struct sd *) gspca_dev;
1486 cp->capability |= V4L2_CAP_TIMEPERFRAME;
1488 tpf->denominator = sd->frame_rate;
1491 /* set stream parameters (framerate) */
1492 static void sd_set_streamparm(struct gspca_dev *gspca_dev,
1493 struct v4l2_streamparm *parm)
1495 struct v4l2_captureparm *cp = &parm->parm.capture;
1496 struct v4l2_fract *tpf = &cp->timeperframe;
1497 struct sd *sd = (struct sd *) gspca_dev;
1499 if (tpf->numerator == 0 || tpf->denominator == 0)
1500 /* Set default framerate */
1501 sd->frame_rate = 30;
1503 /* Set requested framerate */
1504 sd->frame_rate = tpf->denominator / tpf->numerator;
1506 if (gspca_dev->streaming)
1507 set_frame_rate(gspca_dev);
1509 /* Return the actual framerate */
1511 tpf->denominator = sd->frame_rate;
1514 /* sub-driver description */
1515 static const struct sd_desc sd_desc = {
1516 .name = MODULE_NAME,
1517 .config = sd_config,
1519 .init_controls = sd_init_controls,
1522 .pkt_scan = sd_pkt_scan,
1523 .get_streamparm = sd_get_streamparm,
1524 .set_streamparm = sd_set_streamparm,
1527 /* -- module initialisation -- */
1528 static const struct usb_device_id device_table[] = {
1529 {USB_DEVICE(0x1415, 0x2000)},
1530 {USB_DEVICE(0x06f8, 0x3002)},
1534 MODULE_DEVICE_TABLE(usb, device_table);
1536 /* -- device connect -- */
1537 static int sd_probe(struct usb_interface *intf, const struct usb_device_id *id)
1539 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
1543 static struct usb_driver sd_driver = {
1544 .name = MODULE_NAME,
1545 .id_table = device_table,
1547 .disconnect = gspca_disconnect,
1549 .suspend = gspca_suspend,
1550 .resume = gspca_resume,
1551 .reset_resume = gspca_resume,
1555 module_usb_driver(sd_driver);