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.
29 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
31 #define MODULE_NAME "ov534"
35 #include <linux/fixp-arith.h>
36 #include <media/v4l2-ctrls.h>
38 #define OV534_REG_ADDRESS 0xf1 /* sensor address */
39 #define OV534_REG_SUBADDR 0xf2
40 #define OV534_REG_WRITE 0xf3
41 #define OV534_REG_READ 0xf4
42 #define OV534_REG_OPERATION 0xf5
43 #define OV534_REG_STATUS 0xf6
45 #define OV534_OP_WRITE_3 0x37
46 #define OV534_OP_WRITE_2 0x33
47 #define OV534_OP_READ_2 0xf9
49 #define CTRL_TIMEOUT 500
50 #define DEFAULT_FRAME_RATE 30
52 MODULE_AUTHOR("Antonio Ospite <ospite@studenti.unina.it>");
53 MODULE_DESCRIPTION("GSPCA/OV534 USB Camera Driver");
54 MODULE_LICENSE("GPL");
56 /* specific webcam descriptor */
58 struct gspca_dev gspca_dev; /* !! must be the first item */
60 struct v4l2_ctrl_handler ctrl_handler;
61 struct v4l2_ctrl *hue;
62 struct v4l2_ctrl *saturation;
63 struct v4l2_ctrl *brightness;
64 struct v4l2_ctrl *contrast;
65 struct { /* gain control cluster */
66 struct v4l2_ctrl *autogain;
67 struct v4l2_ctrl *gain;
69 struct v4l2_ctrl *autowhitebalance;
70 struct { /* exposure control cluster */
71 struct v4l2_ctrl *autoexposure;
72 struct v4l2_ctrl *exposure;
74 struct v4l2_ctrl *sharpness;
75 struct v4l2_ctrl *hflip;
76 struct v4l2_ctrl *vflip;
77 struct v4l2_ctrl *plfreq;
91 static int sd_start(struct gspca_dev *gspca_dev);
92 static void sd_stopN(struct gspca_dev *gspca_dev);
95 static const struct v4l2_pix_format ov772x_mode[] = {
96 {320, 240, V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE,
97 .bytesperline = 320 * 2,
98 .sizeimage = 320 * 240 * 2,
99 .colorspace = V4L2_COLORSPACE_SRGB,
101 {640, 480, V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE,
102 .bytesperline = 640 * 2,
103 .sizeimage = 640 * 480 * 2,
104 .colorspace = V4L2_COLORSPACE_SRGB,
107 static const struct v4l2_pix_format ov767x_mode[] = {
108 {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
110 .sizeimage = 320 * 240 * 3 / 8 + 590,
111 .colorspace = V4L2_COLORSPACE_JPEG},
112 {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
114 .sizeimage = 640 * 480 * 3 / 8 + 590,
115 .colorspace = V4L2_COLORSPACE_JPEG},
118 static const u8 qvga_rates[] = {187, 150, 137, 125, 100, 75, 60, 50, 37, 30};
119 static const u8 vga_rates[] = {60, 50, 40, 30, 15};
121 static const struct framerates ov772x_framerates[] = {
124 .nrates = ARRAY_SIZE(qvga_rates),
128 .nrates = ARRAY_SIZE(vga_rates),
137 static const u8 bridge_init_767x[][2] = {
138 /* comments from the ms-win file apollo7670.set */
168 {0xc0, 0x50}, /* HSize 640 */
169 {0xc1, 0x3c}, /* VSize 480 */
170 {0x34, 0x05}, /* enable Audio Suspend mode */
171 {0xc2, 0x0c}, /* Input YUV */
172 {0xc3, 0xf9}, /* enable PRE */
173 {0x34, 0x05}, /* enable Audio Suspend mode */
174 {0xe7, 0x2e}, /* this solves failure of "SuspendResumeTest" */
175 {0x31, 0xf9}, /* enable 1.8V Suspend */
176 {0x35, 0x02}, /* turn on JPEG */
178 {0x25, 0x42}, /* GPIO[8]:Input */
179 {0x94, 0x11}, /* If the default setting is loaded when
180 * system boots up, this flag is closed here */
182 static const u8 sensor_init_767x[][2] = {
200 {0x7a, 0x2a}, /* set Gamma=1.6 below */
220 {0x14, 0x38}, /* gain max 16x */
300 {0x41, 0x38}, /* jfm: auto sharpness + auto de-noise */
304 {0xa4, 0x8a}, /* Night mode trigger point */
337 static const u8 bridge_start_vga_767x[][2] = {
345 {0x35, 0x02}, /* turn on JPEG */
347 {0xda, 0x00}, /* for higher clock rate(30fps) */
348 {0x34, 0x05}, /* enable Audio Suspend mode */
349 {0xc3, 0xf9}, /* enable PRE */
350 {0x8c, 0x00}, /* CIF VSize LSB[2:0] */
351 {0x8d, 0x1c}, /* output YUV */
352 /* {0x34, 0x05}, * enable Audio Suspend mode (?) */
353 {0x50, 0x00}, /* H/V divider=0 */
354 {0x51, 0xa0}, /* input H=640/4 */
355 {0x52, 0x3c}, /* input V=480/4 */
356 {0x53, 0x00}, /* offset X=0 */
357 {0x54, 0x00}, /* offset Y=0 */
358 {0x55, 0x00}, /* H/V size[8]=0 */
359 {0x57, 0x00}, /* H-size[9]=0 */
360 {0x5c, 0x00}, /* output size[9:8]=0 */
361 {0x5a, 0xa0}, /* output H=640/4 */
362 {0x5b, 0x78}, /* output V=480/4 */
367 static const u8 sensor_start_vga_767x[][2] = {
373 static const u8 bridge_start_qvga_767x[][2] = {
381 {0x35, 0x02}, /* turn on JPEG */
383 {0xc0, 0x50}, /* CIF HSize 640 */
384 {0xc1, 0x3c}, /* CIF VSize 480 */
385 {0x8c, 0x00}, /* CIF VSize LSB[2:0] */
386 {0x8d, 0x1c}, /* output YUV */
387 {0x34, 0x05}, /* enable Audio Suspend mode */
388 {0xc2, 0x4c}, /* output YUV and Enable DCW */
389 {0xc3, 0xf9}, /* enable PRE */
390 {0x1c, 0x00}, /* indirect addressing */
391 {0x1d, 0x48}, /* output YUV422 */
392 {0x50, 0x89}, /* H/V divider=/2; plus DCW AVG */
393 {0x51, 0xa0}, /* DCW input H=640/4 */
394 {0x52, 0x78}, /* DCW input V=480/4 */
395 {0x53, 0x00}, /* offset X=0 */
396 {0x54, 0x00}, /* offset Y=0 */
397 {0x55, 0x00}, /* H/V size[8]=0 */
398 {0x57, 0x00}, /* H-size[9]=0 */
399 {0x5c, 0x00}, /* DCW output size[9:8]=0 */
400 {0x5a, 0x50}, /* DCW output H=320/4 */
401 {0x5b, 0x3c}, /* DCW output V=240/4 */
406 static const u8 sensor_start_qvga_767x[][2] = {
413 static const u8 bridge_init_772x[][2] = {
452 { 0x1d, 0x02 }, /* payload size 0x0200 * 4 = 2048 bytes */
453 { 0x1d, 0x00 }, /* payload size */
455 { 0x1d, 0x02 }, /* frame size 0x025800 * 4 = 614400 */
456 { 0x1d, 0x58 }, /* frame size */
457 { 0x1d, 0x00 }, /* frame size */
460 { 0x1d, 0x08 }, /* turn on UVC header */
461 { 0x1d, 0x0e }, /* .. */
471 static const u8 sensor_init_772x[][2] = {
474 /*fixme: better have a delay?*/
497 { 0x63, 0xaa }, /* AWB - was e0 */
500 { 0x13, 0xf0 }, /* com8 */
513 { 0x13, 0xff }, /* AWB */
561 { 0x8e, 0x00 }, /* De-noise threshold */
564 static const u8 bridge_start_vga_772x[][2] = {
575 static const u8 sensor_start_vga_772x[][2] = {
585 static const u8 bridge_start_qvga_772x[][2] = {
596 static const u8 sensor_start_qvga_772x[][2] = {
607 static void ov534_reg_write(struct gspca_dev *gspca_dev, u16 reg, u8 val)
609 struct usb_device *udev = gspca_dev->dev;
612 if (gspca_dev->usb_err < 0)
615 gspca_dbg(gspca_dev, D_USBO, "SET 01 0000 %04x %02x\n", reg, val);
616 gspca_dev->usb_buf[0] = val;
617 ret = usb_control_msg(udev,
618 usb_sndctrlpipe(udev, 0),
620 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
621 0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT);
623 pr_err("write failed %d\n", ret);
624 gspca_dev->usb_err = ret;
628 static u8 ov534_reg_read(struct gspca_dev *gspca_dev, u16 reg)
630 struct usb_device *udev = gspca_dev->dev;
633 if (gspca_dev->usb_err < 0)
635 ret = usb_control_msg(udev,
636 usb_rcvctrlpipe(udev, 0),
638 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
639 0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT);
640 gspca_dbg(gspca_dev, D_USBI, "GET 01 0000 %04x %02x\n",
641 reg, gspca_dev->usb_buf[0]);
643 pr_err("read failed %d\n", ret);
644 gspca_dev->usb_err = ret;
646 return gspca_dev->usb_buf[0];
649 /* Two bits control LED: 0x21 bit 7 and 0x23 bit 7.
650 * (direction and output)? */
651 static void ov534_set_led(struct gspca_dev *gspca_dev, int status)
655 gspca_dbg(gspca_dev, D_CONF, "led status: %d\n", status);
657 data = ov534_reg_read(gspca_dev, 0x21);
659 ov534_reg_write(gspca_dev, 0x21, data);
661 data = ov534_reg_read(gspca_dev, 0x23);
667 ov534_reg_write(gspca_dev, 0x23, data);
670 data = ov534_reg_read(gspca_dev, 0x21);
672 ov534_reg_write(gspca_dev, 0x21, data);
676 static int sccb_check_status(struct gspca_dev *gspca_dev)
681 for (i = 0; i < 5; i++) {
683 data = ov534_reg_read(gspca_dev, OV534_REG_STATUS);
693 gspca_err(gspca_dev, "sccb status 0x%02x, attempt %d/5\n",
700 static void sccb_reg_write(struct gspca_dev *gspca_dev, u8 reg, u8 val)
702 gspca_dbg(gspca_dev, D_USBO, "sccb write: %02x %02x\n", reg, val);
703 ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
704 ov534_reg_write(gspca_dev, OV534_REG_WRITE, val);
705 ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_3);
707 if (!sccb_check_status(gspca_dev)) {
708 pr_err("sccb_reg_write failed\n");
709 gspca_dev->usb_err = -EIO;
713 static u8 sccb_reg_read(struct gspca_dev *gspca_dev, u16 reg)
715 ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
716 ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_2);
717 if (!sccb_check_status(gspca_dev))
718 pr_err("sccb_reg_read failed 1\n");
720 ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_READ_2);
721 if (!sccb_check_status(gspca_dev))
722 pr_err("sccb_reg_read failed 2\n");
724 return ov534_reg_read(gspca_dev, OV534_REG_READ);
727 /* output a bridge sequence (reg - val) */
728 static void reg_w_array(struct gspca_dev *gspca_dev,
729 const u8 (*data)[2], int len)
732 ov534_reg_write(gspca_dev, (*data)[0], (*data)[1]);
737 /* output a sensor sequence (reg - val) */
738 static void sccb_w_array(struct gspca_dev *gspca_dev,
739 const u8 (*data)[2], int len)
742 if ((*data)[0] != 0xff) {
743 sccb_reg_write(gspca_dev, (*data)[0], (*data)[1]);
745 sccb_reg_read(gspca_dev, (*data)[1]);
746 sccb_reg_write(gspca_dev, 0xff, 0x00);
752 /* ov772x specific controls */
753 static void set_frame_rate(struct gspca_dev *gspca_dev)
755 struct sd *sd = (struct sd *) gspca_dev;
763 const struct rate_s *r;
764 static const struct rate_s rate_0[] = { /* 640x480 */
765 {60, 0x01, 0xc1, 0x04},
766 {50, 0x01, 0x41, 0x02},
767 {40, 0x02, 0xc1, 0x04},
768 {30, 0x04, 0x81, 0x02},
769 {15, 0x03, 0x41, 0x04},
771 static const struct rate_s rate_1[] = { /* 320x240 */
772 /* {205, 0x01, 0xc1, 0x02}, * 205 FPS: video is partly corrupt */
773 {187, 0x01, 0x81, 0x02}, /* 187 FPS or below: video is valid */
774 {150, 0x01, 0xc1, 0x04},
775 {137, 0x02, 0xc1, 0x02},
776 {125, 0x02, 0x81, 0x02},
777 {100, 0x02, 0xc1, 0x04},
778 {75, 0x03, 0xc1, 0x04},
779 {60, 0x04, 0xc1, 0x04},
780 {50, 0x02, 0x41, 0x04},
781 {37, 0x03, 0x41, 0x04},
782 {30, 0x04, 0x41, 0x04},
785 if (sd->sensor != SENSOR_OV772x)
787 if (gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv == 0) {
789 i = ARRAY_SIZE(rate_0);
792 i = ARRAY_SIZE(rate_1);
795 if (sd->frame_rate >= r->fps)
800 sccb_reg_write(gspca_dev, 0x11, r->r11);
801 sccb_reg_write(gspca_dev, 0x0d, r->r0d);
802 ov534_reg_write(gspca_dev, 0xe5, r->re5);
804 gspca_dbg(gspca_dev, D_PROBE, "frame_rate: %d\n", r->fps);
807 static void sethue(struct gspca_dev *gspca_dev, s32 val)
809 struct sd *sd = (struct sd *) gspca_dev;
811 if (sd->sensor == SENSOR_OV767x) {
817 /* According to the datasheet the registers expect HUESIN and
818 * HUECOS to be the result of the trigonometric functions,
821 * The 0x7fff here represents the maximum absolute value
822 * returned byt fixp_sin and fixp_cos, so the scaling will
823 * consider the result like in the interval [-1.0, 1.0].
825 huesin = fixp_sin16(val) * 0x80 / 0x7fff;
826 huecos = fixp_cos16(val) * 0x80 / 0x7fff;
829 sccb_reg_write(gspca_dev, 0xab,
830 sccb_reg_read(gspca_dev, 0xab) | 0x2);
833 sccb_reg_write(gspca_dev, 0xab,
834 sccb_reg_read(gspca_dev, 0xab) & ~0x2);
837 sccb_reg_write(gspca_dev, 0xa9, (u8)huecos);
838 sccb_reg_write(gspca_dev, 0xaa, (u8)huesin);
842 static void setsaturation(struct gspca_dev *gspca_dev, s32 val)
844 struct sd *sd = (struct sd *) gspca_dev;
846 if (sd->sensor == SENSOR_OV767x) {
848 static u8 color_tb[][6] = {
849 {0x42, 0x42, 0x00, 0x11, 0x30, 0x41},
850 {0x52, 0x52, 0x00, 0x16, 0x3c, 0x52},
851 {0x66, 0x66, 0x00, 0x1b, 0x4b, 0x66},
852 {0x80, 0x80, 0x00, 0x22, 0x5e, 0x80},
853 {0x9a, 0x9a, 0x00, 0x29, 0x71, 0x9a},
854 {0xb8, 0xb8, 0x00, 0x31, 0x87, 0xb8},
855 {0xdd, 0xdd, 0x00, 0x3b, 0xa2, 0xdd},
858 for (i = 0; i < ARRAY_SIZE(color_tb[0]); i++)
859 sccb_reg_write(gspca_dev, 0x4f + i, color_tb[val][i]);
861 sccb_reg_write(gspca_dev, 0xa7, val); /* U saturation */
862 sccb_reg_write(gspca_dev, 0xa8, val); /* V saturation */
866 static void setbrightness(struct gspca_dev *gspca_dev, s32 val)
868 struct sd *sd = (struct sd *) gspca_dev;
870 if (sd->sensor == SENSOR_OV767x) {
873 sccb_reg_write(gspca_dev, 0x55, val); /* bright */
875 sccb_reg_write(gspca_dev, 0x9b, val);
879 static void setcontrast(struct gspca_dev *gspca_dev, s32 val)
881 struct sd *sd = (struct sd *) gspca_dev;
883 if (sd->sensor == SENSOR_OV767x)
884 sccb_reg_write(gspca_dev, 0x56, val); /* contras */
886 sccb_reg_write(gspca_dev, 0x9c, val);
889 static void setgain(struct gspca_dev *gspca_dev, s32 val)
891 switch (val & 0x30) {
909 sccb_reg_write(gspca_dev, 0x00, val);
912 static s32 getgain(struct gspca_dev *gspca_dev)
914 return sccb_reg_read(gspca_dev, 0x00);
917 static void setexposure(struct gspca_dev *gspca_dev, s32 val)
919 struct sd *sd = (struct sd *) gspca_dev;
921 if (sd->sensor == SENSOR_OV767x) {
923 /* set only aec[9:2] */
924 sccb_reg_write(gspca_dev, 0x10, val); /* aech */
927 /* 'val' is one byte and represents half of the exposure value
928 * we are going to set into registers, a two bytes value:
930 * MSB: ((u16) val << 1) >> 8 == val >> 7
931 * LSB: ((u16) val << 1) & 0xff == val << 1
933 sccb_reg_write(gspca_dev, 0x08, val >> 7);
934 sccb_reg_write(gspca_dev, 0x10, val << 1);
938 static s32 getexposure(struct gspca_dev *gspca_dev)
940 struct sd *sd = (struct sd *) gspca_dev;
942 if (sd->sensor == SENSOR_OV767x) {
943 /* get only aec[9:2] */
944 return sccb_reg_read(gspca_dev, 0x10); /* aech */
946 u8 hi = sccb_reg_read(gspca_dev, 0x08);
947 u8 lo = sccb_reg_read(gspca_dev, 0x10);
948 return (hi << 8 | lo) >> 1;
952 static void setagc(struct gspca_dev *gspca_dev, s32 val)
955 sccb_reg_write(gspca_dev, 0x13,
956 sccb_reg_read(gspca_dev, 0x13) | 0x04);
957 sccb_reg_write(gspca_dev, 0x64,
958 sccb_reg_read(gspca_dev, 0x64) | 0x03);
960 sccb_reg_write(gspca_dev, 0x13,
961 sccb_reg_read(gspca_dev, 0x13) & ~0x04);
962 sccb_reg_write(gspca_dev, 0x64,
963 sccb_reg_read(gspca_dev, 0x64) & ~0x03);
967 static void setawb(struct gspca_dev *gspca_dev, s32 val)
969 struct sd *sd = (struct sd *) gspca_dev;
972 sccb_reg_write(gspca_dev, 0x13,
973 sccb_reg_read(gspca_dev, 0x13) | 0x02);
974 if (sd->sensor == SENSOR_OV772x)
975 sccb_reg_write(gspca_dev, 0x63,
976 sccb_reg_read(gspca_dev, 0x63) | 0xc0);
978 sccb_reg_write(gspca_dev, 0x13,
979 sccb_reg_read(gspca_dev, 0x13) & ~0x02);
980 if (sd->sensor == SENSOR_OV772x)
981 sccb_reg_write(gspca_dev, 0x63,
982 sccb_reg_read(gspca_dev, 0x63) & ~0xc0);
986 static void setaec(struct gspca_dev *gspca_dev, s32 val)
988 struct sd *sd = (struct sd *) gspca_dev;
991 data = sd->sensor == SENSOR_OV767x ?
992 0x05 : /* agc + aec */
995 case V4L2_EXPOSURE_AUTO:
996 sccb_reg_write(gspca_dev, 0x13,
997 sccb_reg_read(gspca_dev, 0x13) | data);
999 case V4L2_EXPOSURE_MANUAL:
1000 sccb_reg_write(gspca_dev, 0x13,
1001 sccb_reg_read(gspca_dev, 0x13) & ~data);
1006 static void setsharpness(struct gspca_dev *gspca_dev, s32 val)
1008 sccb_reg_write(gspca_dev, 0x91, val); /* Auto de-noise threshold */
1009 sccb_reg_write(gspca_dev, 0x8e, val); /* De-noise threshold */
1012 static void sethvflip(struct gspca_dev *gspca_dev, s32 hflip, s32 vflip)
1014 struct sd *sd = (struct sd *) gspca_dev;
1017 if (sd->sensor == SENSOR_OV767x) {
1018 val = sccb_reg_read(gspca_dev, 0x1e); /* mvfp */
1024 sccb_reg_write(gspca_dev, 0x1e, val);
1026 val = sccb_reg_read(gspca_dev, 0x0c);
1032 sccb_reg_write(gspca_dev, 0x0c, val);
1036 static void setlightfreq(struct gspca_dev *gspca_dev, s32 val)
1038 struct sd *sd = (struct sd *) gspca_dev;
1040 val = val ? 0x9e : 0x00;
1041 if (sd->sensor == SENSOR_OV767x) {
1042 sccb_reg_write(gspca_dev, 0x2a, 0x00);
1044 val = 0x9d; /* insert dummy to 25fps for 50Hz */
1046 sccb_reg_write(gspca_dev, 0x2b, val);
1050 /* this function is called at probe time */
1051 static int sd_config(struct gspca_dev *gspca_dev,
1052 const struct usb_device_id *id)
1054 struct sd *sd = (struct sd *) gspca_dev;
1057 cam = &gspca_dev->cam;
1059 cam->cam_mode = ov772x_mode;
1060 cam->nmodes = ARRAY_SIZE(ov772x_mode);
1062 sd->frame_rate = DEFAULT_FRAME_RATE;
1067 static int ov534_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
1069 struct sd *sd = container_of(ctrl->handler, struct sd, ctrl_handler);
1070 struct gspca_dev *gspca_dev = &sd->gspca_dev;
1073 case V4L2_CID_AUTOGAIN:
1074 gspca_dev->usb_err = 0;
1075 if (ctrl->val && sd->gain && gspca_dev->streaming)
1076 sd->gain->val = getgain(gspca_dev);
1077 return gspca_dev->usb_err;
1079 case V4L2_CID_EXPOSURE_AUTO:
1080 gspca_dev->usb_err = 0;
1081 if (ctrl->val == V4L2_EXPOSURE_AUTO && sd->exposure &&
1082 gspca_dev->streaming)
1083 sd->exposure->val = getexposure(gspca_dev);
1084 return gspca_dev->usb_err;
1089 static int ov534_s_ctrl(struct v4l2_ctrl *ctrl)
1091 struct sd *sd = container_of(ctrl->handler, struct sd, ctrl_handler);
1092 struct gspca_dev *gspca_dev = &sd->gspca_dev;
1094 gspca_dev->usb_err = 0;
1095 if (!gspca_dev->streaming)
1100 sethue(gspca_dev, ctrl->val);
1102 case V4L2_CID_SATURATION:
1103 setsaturation(gspca_dev, ctrl->val);
1105 case V4L2_CID_BRIGHTNESS:
1106 setbrightness(gspca_dev, ctrl->val);
1108 case V4L2_CID_CONTRAST:
1109 setcontrast(gspca_dev, ctrl->val);
1111 case V4L2_CID_AUTOGAIN:
1112 /* case V4L2_CID_GAIN: */
1113 setagc(gspca_dev, ctrl->val);
1114 if (!gspca_dev->usb_err && !ctrl->val && sd->gain)
1115 setgain(gspca_dev, sd->gain->val);
1117 case V4L2_CID_AUTO_WHITE_BALANCE:
1118 setawb(gspca_dev, ctrl->val);
1120 case V4L2_CID_EXPOSURE_AUTO:
1121 /* case V4L2_CID_EXPOSURE: */
1122 setaec(gspca_dev, ctrl->val);
1123 if (!gspca_dev->usb_err && ctrl->val == V4L2_EXPOSURE_MANUAL &&
1125 setexposure(gspca_dev, sd->exposure->val);
1127 case V4L2_CID_SHARPNESS:
1128 setsharpness(gspca_dev, ctrl->val);
1130 case V4L2_CID_HFLIP:
1131 sethvflip(gspca_dev, ctrl->val, sd->vflip->val);
1133 case V4L2_CID_VFLIP:
1134 sethvflip(gspca_dev, sd->hflip->val, ctrl->val);
1136 case V4L2_CID_POWER_LINE_FREQUENCY:
1137 setlightfreq(gspca_dev, ctrl->val);
1140 return gspca_dev->usb_err;
1143 static const struct v4l2_ctrl_ops ov534_ctrl_ops = {
1144 .g_volatile_ctrl = ov534_g_volatile_ctrl,
1145 .s_ctrl = ov534_s_ctrl,
1148 static int sd_init_controls(struct gspca_dev *gspca_dev)
1150 struct sd *sd = (struct sd *) gspca_dev;
1151 struct v4l2_ctrl_handler *hdl = &sd->ctrl_handler;
1152 /* parameters with different values between the supported sensors */
1166 if (sd->sensor == SENSOR_OV767x) {
1170 brightness_min = -127;
1171 brightness_max = 127;
1173 contrast_max = 0x80;
1174 contrast_def = 0x40;
1175 exposure_min = 0x08;
1176 exposure_max = 0x60;
1177 exposure_def = 0x13;
1181 saturation_max = 255,
1182 saturation_def = 64,
1184 brightness_max = 255;
1194 gspca_dev->vdev.ctrl_handler = hdl;
1196 v4l2_ctrl_handler_init(hdl, 13);
1198 if (sd->sensor == SENSOR_OV772x)
1199 sd->hue = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1200 V4L2_CID_HUE, -90, 90, 1, 0);
1202 sd->saturation = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1203 V4L2_CID_SATURATION, saturation_min, saturation_max, 1,
1205 sd->brightness = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1206 V4L2_CID_BRIGHTNESS, brightness_min, brightness_max, 1,
1208 sd->contrast = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1209 V4L2_CID_CONTRAST, 0, contrast_max, 1, contrast_def);
1211 if (sd->sensor == SENSOR_OV772x) {
1212 sd->autogain = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1213 V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
1214 sd->gain = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1215 V4L2_CID_GAIN, 0, 63, 1, 20);
1218 sd->autoexposure = v4l2_ctrl_new_std_menu(hdl, &ov534_ctrl_ops,
1219 V4L2_CID_EXPOSURE_AUTO,
1220 V4L2_EXPOSURE_MANUAL, 0,
1221 V4L2_EXPOSURE_AUTO);
1222 sd->exposure = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1223 V4L2_CID_EXPOSURE, exposure_min, exposure_max, 1,
1226 sd->autowhitebalance = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1227 V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1);
1229 if (sd->sensor == SENSOR_OV772x)
1230 sd->sharpness = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1231 V4L2_CID_SHARPNESS, 0, 63, 1, 0);
1233 sd->hflip = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1234 V4L2_CID_HFLIP, 0, 1, 1, hflip_def);
1235 sd->vflip = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1236 V4L2_CID_VFLIP, 0, 1, 1, 0);
1237 sd->plfreq = v4l2_ctrl_new_std_menu(hdl, &ov534_ctrl_ops,
1238 V4L2_CID_POWER_LINE_FREQUENCY,
1239 V4L2_CID_POWER_LINE_FREQUENCY_50HZ, 0,
1240 V4L2_CID_POWER_LINE_FREQUENCY_DISABLED);
1243 pr_err("Could not initialize controls\n");
1247 if (sd->sensor == SENSOR_OV772x)
1248 v4l2_ctrl_auto_cluster(2, &sd->autogain, 0, true);
1250 v4l2_ctrl_auto_cluster(2, &sd->autoexposure, V4L2_EXPOSURE_MANUAL,
1256 /* this function is called at probe and resume time */
1257 static int sd_init(struct gspca_dev *gspca_dev)
1259 struct sd *sd = (struct sd *) gspca_dev;
1261 static const struct reg_array bridge_init[NSENSORS] = {
1262 [SENSOR_OV767x] = {bridge_init_767x, ARRAY_SIZE(bridge_init_767x)},
1263 [SENSOR_OV772x] = {bridge_init_772x, ARRAY_SIZE(bridge_init_772x)},
1265 static const struct reg_array sensor_init[NSENSORS] = {
1266 [SENSOR_OV767x] = {sensor_init_767x, ARRAY_SIZE(sensor_init_767x)},
1267 [SENSOR_OV772x] = {sensor_init_772x, ARRAY_SIZE(sensor_init_772x)},
1271 ov534_reg_write(gspca_dev, 0xe7, 0x3a);
1272 ov534_reg_write(gspca_dev, 0xe0, 0x08);
1275 /* initialize the sensor address */
1276 ov534_reg_write(gspca_dev, OV534_REG_ADDRESS, 0x42);
1279 sccb_reg_write(gspca_dev, 0x12, 0x80);
1282 /* probe the sensor */
1283 sccb_reg_read(gspca_dev, 0x0a);
1284 sensor_id = sccb_reg_read(gspca_dev, 0x0a) << 8;
1285 sccb_reg_read(gspca_dev, 0x0b);
1286 sensor_id |= sccb_reg_read(gspca_dev, 0x0b);
1287 gspca_dbg(gspca_dev, D_PROBE, "Sensor ID: %04x\n", sensor_id);
1289 if ((sensor_id & 0xfff0) == 0x7670) {
1290 sd->sensor = SENSOR_OV767x;
1291 gspca_dev->cam.cam_mode = ov767x_mode;
1292 gspca_dev->cam.nmodes = ARRAY_SIZE(ov767x_mode);
1294 sd->sensor = SENSOR_OV772x;
1295 gspca_dev->cam.bulk = 1;
1296 gspca_dev->cam.bulk_size = 16384;
1297 gspca_dev->cam.bulk_nurbs = 2;
1298 gspca_dev->cam.mode_framerates = ov772x_framerates;
1302 reg_w_array(gspca_dev, bridge_init[sd->sensor].val,
1303 bridge_init[sd->sensor].len);
1304 ov534_set_led(gspca_dev, 1);
1305 sccb_w_array(gspca_dev, sensor_init[sd->sensor].val,
1306 sensor_init[sd->sensor].len);
1308 sd_stopN(gspca_dev);
1309 /* set_frame_rate(gspca_dev); */
1311 return gspca_dev->usb_err;
1314 static int sd_start(struct gspca_dev *gspca_dev)
1316 struct sd *sd = (struct sd *) gspca_dev;
1318 static const struct reg_array bridge_start[NSENSORS][2] = {
1319 [SENSOR_OV767x] = {{bridge_start_qvga_767x,
1320 ARRAY_SIZE(bridge_start_qvga_767x)},
1321 {bridge_start_vga_767x,
1322 ARRAY_SIZE(bridge_start_vga_767x)}},
1323 [SENSOR_OV772x] = {{bridge_start_qvga_772x,
1324 ARRAY_SIZE(bridge_start_qvga_772x)},
1325 {bridge_start_vga_772x,
1326 ARRAY_SIZE(bridge_start_vga_772x)}},
1328 static const struct reg_array sensor_start[NSENSORS][2] = {
1329 [SENSOR_OV767x] = {{sensor_start_qvga_767x,
1330 ARRAY_SIZE(sensor_start_qvga_767x)},
1331 {sensor_start_vga_767x,
1332 ARRAY_SIZE(sensor_start_vga_767x)}},
1333 [SENSOR_OV772x] = {{sensor_start_qvga_772x,
1334 ARRAY_SIZE(sensor_start_qvga_772x)},
1335 {sensor_start_vga_772x,
1336 ARRAY_SIZE(sensor_start_vga_772x)}},
1339 /* (from ms-win trace) */
1340 if (sd->sensor == SENSOR_OV767x)
1341 sccb_reg_write(gspca_dev, 0x1e, 0x04);
1342 /* black sun enable ? */
1344 mode = gspca_dev->curr_mode; /* 0: 320x240, 1: 640x480 */
1345 reg_w_array(gspca_dev, bridge_start[sd->sensor][mode].val,
1346 bridge_start[sd->sensor][mode].len);
1347 sccb_w_array(gspca_dev, sensor_start[sd->sensor][mode].val,
1348 sensor_start[sd->sensor][mode].len);
1350 set_frame_rate(gspca_dev);
1353 sethue(gspca_dev, v4l2_ctrl_g_ctrl(sd->hue));
1354 setsaturation(gspca_dev, v4l2_ctrl_g_ctrl(sd->saturation));
1356 setagc(gspca_dev, v4l2_ctrl_g_ctrl(sd->autogain));
1357 setawb(gspca_dev, v4l2_ctrl_g_ctrl(sd->autowhitebalance));
1358 setaec(gspca_dev, v4l2_ctrl_g_ctrl(sd->autoexposure));
1360 setgain(gspca_dev, v4l2_ctrl_g_ctrl(sd->gain));
1361 setexposure(gspca_dev, v4l2_ctrl_g_ctrl(sd->exposure));
1362 setbrightness(gspca_dev, v4l2_ctrl_g_ctrl(sd->brightness));
1363 setcontrast(gspca_dev, v4l2_ctrl_g_ctrl(sd->contrast));
1365 setsharpness(gspca_dev, v4l2_ctrl_g_ctrl(sd->sharpness));
1366 sethvflip(gspca_dev, v4l2_ctrl_g_ctrl(sd->hflip),
1367 v4l2_ctrl_g_ctrl(sd->vflip));
1368 setlightfreq(gspca_dev, v4l2_ctrl_g_ctrl(sd->plfreq));
1370 ov534_set_led(gspca_dev, 1);
1371 ov534_reg_write(gspca_dev, 0xe0, 0x00);
1372 return gspca_dev->usb_err;
1375 static void sd_stopN(struct gspca_dev *gspca_dev)
1377 ov534_reg_write(gspca_dev, 0xe0, 0x09);
1378 ov534_set_led(gspca_dev, 0);
1381 /* Values for bmHeaderInfo (Video and Still Image Payload Headers, 2.4.3.3) */
1382 #define UVC_STREAM_EOH (1 << 7)
1383 #define UVC_STREAM_ERR (1 << 6)
1384 #define UVC_STREAM_STI (1 << 5)
1385 #define UVC_STREAM_RES (1 << 4)
1386 #define UVC_STREAM_SCR (1 << 3)
1387 #define UVC_STREAM_PTS (1 << 2)
1388 #define UVC_STREAM_EOF (1 << 1)
1389 #define UVC_STREAM_FID (1 << 0)
1391 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
1394 struct sd *sd = (struct sd *) gspca_dev;
1397 int remaining_len = len;
1400 payload_len = gspca_dev->cam.bulk ? 2048 : 2040;
1402 len = min(remaining_len, payload_len);
1404 /* Payloads are prefixed with a UVC-style header. We
1405 consider a frame to start when the FID toggles, or the PTS
1406 changes. A frame ends when EOF is set, and we've received
1407 the correct number of bytes. */
1409 /* Verify UVC header. Header length is always 12 */
1410 if (data[0] != 12 || len < 12) {
1411 gspca_dbg(gspca_dev, D_PACK, "bad header\n");
1416 if (data[1] & UVC_STREAM_ERR) {
1417 gspca_dbg(gspca_dev, D_PACK, "payload error\n");
1421 /* Extract PTS and FID */
1422 if (!(data[1] & UVC_STREAM_PTS)) {
1423 gspca_dbg(gspca_dev, D_PACK, "PTS not present\n");
1426 this_pts = (data[5] << 24) | (data[4] << 16)
1427 | (data[3] << 8) | data[2];
1428 this_fid = (data[1] & UVC_STREAM_FID) ? 1 : 0;
1430 /* If PTS or FID has changed, start a new frame. */
1431 if (this_pts != sd->last_pts || this_fid != sd->last_fid) {
1432 if (gspca_dev->last_packet_type == INTER_PACKET)
1433 gspca_frame_add(gspca_dev, LAST_PACKET,
1435 sd->last_pts = this_pts;
1436 sd->last_fid = this_fid;
1437 gspca_frame_add(gspca_dev, FIRST_PACKET,
1438 data + 12, len - 12);
1439 /* If this packet is marked as EOF, end the frame */
1440 } else if (data[1] & UVC_STREAM_EOF) {
1442 if (gspca_dev->pixfmt.pixelformat == V4L2_PIX_FMT_YUYV
1443 && gspca_dev->image_len + len - 12 !=
1444 gspca_dev->pixfmt.width *
1445 gspca_dev->pixfmt.height * 2) {
1446 gspca_dbg(gspca_dev, D_PACK, "wrong sized frame\n");
1449 gspca_frame_add(gspca_dev, LAST_PACKET,
1450 data + 12, len - 12);
1453 /* Add the data from this payload */
1454 gspca_frame_add(gspca_dev, INTER_PACKET,
1455 data + 12, len - 12);
1458 /* Done this payload */
1462 /* Discard data until a new frame starts. */
1463 gspca_dev->last_packet_type = DISCARD_PACKET;
1466 remaining_len -= len;
1468 } while (remaining_len > 0);
1471 /* get stream parameters (framerate) */
1472 static void sd_get_streamparm(struct gspca_dev *gspca_dev,
1473 struct v4l2_streamparm *parm)
1475 struct v4l2_captureparm *cp = &parm->parm.capture;
1476 struct v4l2_fract *tpf = &cp->timeperframe;
1477 struct sd *sd = (struct sd *) gspca_dev;
1479 cp->capability |= V4L2_CAP_TIMEPERFRAME;
1481 tpf->denominator = sd->frame_rate;
1484 /* set stream parameters (framerate) */
1485 static void sd_set_streamparm(struct gspca_dev *gspca_dev,
1486 struct v4l2_streamparm *parm)
1488 struct v4l2_captureparm *cp = &parm->parm.capture;
1489 struct v4l2_fract *tpf = &cp->timeperframe;
1490 struct sd *sd = (struct sd *) gspca_dev;
1492 if (tpf->numerator == 0 || tpf->denominator == 0)
1493 sd->frame_rate = DEFAULT_FRAME_RATE;
1495 sd->frame_rate = tpf->denominator / tpf->numerator;
1497 if (gspca_dev->streaming)
1498 set_frame_rate(gspca_dev);
1500 /* Return the actual framerate */
1502 tpf->denominator = sd->frame_rate;
1505 /* sub-driver description */
1506 static const struct sd_desc sd_desc = {
1507 .name = MODULE_NAME,
1508 .config = sd_config,
1510 .init_controls = sd_init_controls,
1513 .pkt_scan = sd_pkt_scan,
1514 .get_streamparm = sd_get_streamparm,
1515 .set_streamparm = sd_set_streamparm,
1518 /* -- module initialisation -- */
1519 static const struct usb_device_id device_table[] = {
1520 {USB_DEVICE(0x1415, 0x2000)},
1521 {USB_DEVICE(0x06f8, 0x3002)},
1525 MODULE_DEVICE_TABLE(usb, device_table);
1527 /* -- device connect -- */
1528 static int sd_probe(struct usb_interface *intf, const struct usb_device_id *id)
1530 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
1534 static struct usb_driver sd_driver = {
1535 .name = MODULE_NAME,
1536 .id_table = device_table,
1538 .disconnect = gspca_disconnect,
1540 .suspend = gspca_suspend,
1541 .resume = gspca_resume,
1542 .reset_resume = gspca_resume,
1546 module_usb_driver(sd_driver);