2 * ov534-ov772x 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>
16 * This program is free software; you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License as published by
18 * the Free Software Foundation; either version 2 of the License, or
21 * This program is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 * GNU General Public License for more details.
26 * You should have received a copy of the GNU General Public License
27 * along with this program; if not, write to the Free Software
28 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
31 #define MODULE_NAME "ov534"
35 #define OV534_REG_ADDRESS 0xf1 /* sensor address */
36 #define OV534_REG_SUBADDR 0xf2
37 #define OV534_REG_WRITE 0xf3
38 #define OV534_REG_READ 0xf4
39 #define OV534_REG_OPERATION 0xf5
40 #define OV534_REG_STATUS 0xf6
42 #define OV534_OP_WRITE_3 0x37
43 #define OV534_OP_WRITE_2 0x33
44 #define OV534_OP_READ_2 0xf9
46 #define CTRL_TIMEOUT 500
48 MODULE_AUTHOR("Antonio Ospite <ospite@studenti.unina.it>");
49 MODULE_DESCRIPTION("GSPCA/OV534 USB Camera Driver");
50 MODULE_LICENSE("GPL");
52 /* specific webcam descriptor */
54 struct gspca_dev gspca_dev; /* !! must be the first item */
72 /* V4L2 controls supported by the driver */
73 static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val);
74 static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val);
75 static int sd_setexposure(struct gspca_dev *gspca_dev, __s32 val);
76 static int sd_getexposure(struct gspca_dev *gspca_dev, __s32 *val);
77 static int sd_setagc(struct gspca_dev *gspca_dev, __s32 val);
78 static int sd_getagc(struct gspca_dev *gspca_dev, __s32 *val);
79 static int sd_setsharpness(struct gspca_dev *gspca_dev, __s32 val);
80 static int sd_getsharpness(struct gspca_dev *gspca_dev, __s32 *val);
81 static int sd_sethflip(struct gspca_dev *gspca_dev, __s32 val);
82 static int sd_gethflip(struct gspca_dev *gspca_dev, __s32 *val);
83 static int sd_setvflip(struct gspca_dev *gspca_dev, __s32 val);
84 static int sd_getvflip(struct gspca_dev *gspca_dev, __s32 *val);
85 static int sd_setawb(struct gspca_dev *gspca_dev, __s32 val);
86 static int sd_getawb(struct gspca_dev *gspca_dev, __s32 *val);
87 static int sd_setaec(struct gspca_dev *gspca_dev, __s32 val);
88 static int sd_getaec(struct gspca_dev *gspca_dev, __s32 *val);
89 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
90 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
91 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val);
92 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val);
93 static int sd_setfreqfltr(struct gspca_dev *gspca_dev, __s32 val);
94 static int sd_getfreqfltr(struct gspca_dev *gspca_dev, __s32 *val);
95 static int sd_querymenu(struct gspca_dev *gspca_dev,
96 struct v4l2_querymenu *menu);
98 static const struct ctrl sd_ctrls[] = {
101 .id = V4L2_CID_BRIGHTNESS,
102 .type = V4L2_CTRL_TYPE_INTEGER,
103 .name = "Brightness",
107 #define BRIGHTNESS_DEF 0
108 .default_value = BRIGHTNESS_DEF,
110 .set = sd_setbrightness,
111 .get = sd_getbrightness,
115 .id = V4L2_CID_CONTRAST,
116 .type = V4L2_CTRL_TYPE_INTEGER,
121 #define CONTRAST_DEF 32
122 .default_value = CONTRAST_DEF,
124 .set = sd_setcontrast,
125 .get = sd_getcontrast,
130 .type = V4L2_CTRL_TYPE_INTEGER,
136 .default_value = GAIN_DEF,
143 .id = V4L2_CID_EXPOSURE,
144 .type = V4L2_CTRL_TYPE_INTEGER,
150 .default_value = EXPO_DEF,
152 .set = sd_setexposure,
153 .get = sd_getexposure,
157 .id = V4L2_CID_AUTOGAIN,
158 .type = V4L2_CTRL_TYPE_BOOLEAN,
164 .default_value = AGC_DEF,
172 .id = V4L2_CID_AUTO_WHITE_BALANCE,
173 .type = V4L2_CTRL_TYPE_BOOLEAN,
174 .name = "Auto White Balance",
179 .default_value = AWB_DEF,
186 .id = V4L2_CID_EXPOSURE_AUTO,
187 .type = V4L2_CTRL_TYPE_BOOLEAN,
188 .name = "Auto Exposure",
193 .default_value = AEC_DEF,
200 .id = V4L2_CID_SHARPNESS,
201 .type = V4L2_CTRL_TYPE_INTEGER,
206 #define SHARPNESS_DEF 0
207 .default_value = SHARPNESS_DEF,
209 .set = sd_setsharpness,
210 .get = sd_getsharpness,
214 .id = V4L2_CID_HFLIP,
215 .type = V4L2_CTRL_TYPE_BOOLEAN,
221 .default_value = HFLIP_DEF,
228 .id = V4L2_CID_VFLIP,
229 .type = V4L2_CTRL_TYPE_BOOLEAN,
235 .default_value = VFLIP_DEF,
242 .id = V4L2_CID_POWER_LINE_FREQUENCY,
243 .type = V4L2_CTRL_TYPE_MENU,
244 .name = "Light Frequency Filter",
248 #define FREQFLTR_DEF 0
249 .default_value = FREQFLTR_DEF,
251 .set = sd_setfreqfltr,
252 .get = sd_getfreqfltr,
256 static const struct v4l2_pix_format ov772x_mode[] = {
257 {320, 240, V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE,
258 .bytesperline = 320 * 2,
259 .sizeimage = 320 * 240 * 2,
260 .colorspace = V4L2_COLORSPACE_SRGB,
262 {640, 480, V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE,
263 .bytesperline = 640 * 2,
264 .sizeimage = 640 * 480 * 2,
265 .colorspace = V4L2_COLORSPACE_SRGB,
269 static const u8 qvga_rates[] = {125, 100, 75, 60, 50, 40, 30};
270 static const u8 vga_rates[] = {60, 50, 40, 30, 15};
272 static const struct framerates ov772x_framerates[] = {
275 .nrates = ARRAY_SIZE(qvga_rates),
279 .nrates = ARRAY_SIZE(vga_rates),
283 static const u8 bridge_init[][2] = {
322 { 0x1d, 0x02 }, /* payload size 0x0200 * 4 = 2048 bytes */
323 { 0x1d, 0x00 }, /* payload size */
325 { 0x1d, 0x02 }, /* frame size 0x025800 * 4 = 614400 */
326 { 0x1d, 0x58 }, /* frame size */
327 { 0x1d, 0x00 }, /* frame size */
330 { 0x1d, 0x08 }, /* turn on UVC header */
331 { 0x1d, 0x0e }, /* .. */
341 static const u8 sensor_init[][2] = {
344 /*fixme: better have a delay?*/
367 { 0x63, 0xaa }, /* AWB - was e0 */
370 { 0x13, 0xf0 }, /* com8 */
383 { 0x13, 0xff }, /* AWB */
431 { 0x8e, 0x00 }, /* De-noise threshold */
434 static const u8 bridge_start_vga[][2] = {
445 static const u8 sensor_start_vga[][2] = {
455 static const u8 bridge_start_qvga[][2] = {
466 static const u8 sensor_start_qvga[][2] = {
477 static void ov534_reg_write(struct gspca_dev *gspca_dev, u16 reg, u8 val)
479 struct usb_device *udev = gspca_dev->dev;
482 if (gspca_dev->usb_err < 0)
485 PDEBUG(D_USBO, "SET 01 0000 %04x %02x", reg, val);
486 gspca_dev->usb_buf[0] = val;
487 ret = usb_control_msg(udev,
488 usb_sndctrlpipe(udev, 0),
490 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
491 0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT);
493 err("write failed %d", ret);
494 gspca_dev->usb_err = ret;
498 static u8 ov534_reg_read(struct gspca_dev *gspca_dev, u16 reg)
500 struct usb_device *udev = gspca_dev->dev;
503 if (gspca_dev->usb_err < 0)
505 ret = usb_control_msg(udev,
506 usb_rcvctrlpipe(udev, 0),
508 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
509 0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT);
510 PDEBUG(D_USBI, "GET 01 0000 %04x %02x", reg, gspca_dev->usb_buf[0]);
512 err("read failed %d", ret);
513 gspca_dev->usb_err = ret;
515 return gspca_dev->usb_buf[0];
518 /* Two bits control LED: 0x21 bit 7 and 0x23 bit 7.
519 * (direction and output)? */
520 static void ov534_set_led(struct gspca_dev *gspca_dev, int status)
524 PDEBUG(D_CONF, "led status: %d", status);
526 data = ov534_reg_read(gspca_dev, 0x21);
528 ov534_reg_write(gspca_dev, 0x21, data);
530 data = ov534_reg_read(gspca_dev, 0x23);
536 ov534_reg_write(gspca_dev, 0x23, data);
539 data = ov534_reg_read(gspca_dev, 0x21);
541 ov534_reg_write(gspca_dev, 0x21, data);
545 static int sccb_check_status(struct gspca_dev *gspca_dev)
550 for (i = 0; i < 5; i++) {
551 data = ov534_reg_read(gspca_dev, OV534_REG_STATUS);
561 PDEBUG(D_ERR, "sccb status 0x%02x, attempt %d/5",
568 static void sccb_reg_write(struct gspca_dev *gspca_dev, u8 reg, u8 val)
570 PDEBUG(D_USBO, "sccb write: %02x %02x", reg, val);
571 ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
572 ov534_reg_write(gspca_dev, OV534_REG_WRITE, val);
573 ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_3);
575 if (!sccb_check_status(gspca_dev)) {
576 err("sccb_reg_write failed");
577 gspca_dev->usb_err = -EIO;
581 static u8 sccb_reg_read(struct gspca_dev *gspca_dev, u16 reg)
583 ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
584 ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_2);
585 if (!sccb_check_status(gspca_dev))
586 err("sccb_reg_read failed 1");
588 ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_READ_2);
589 if (!sccb_check_status(gspca_dev))
590 err("sccb_reg_read failed 2");
592 return ov534_reg_read(gspca_dev, OV534_REG_READ);
595 /* output a bridge sequence (reg - val) */
596 static void reg_w_array(struct gspca_dev *gspca_dev,
597 const u8 (*data)[2], int len)
600 ov534_reg_write(gspca_dev, (*data)[0], (*data)[1]);
605 /* output a sensor sequence (reg - val) */
606 static void sccb_w_array(struct gspca_dev *gspca_dev,
607 const u8 (*data)[2], int len)
610 if ((*data)[0] != 0xff) {
611 sccb_reg_write(gspca_dev, (*data)[0], (*data)[1]);
613 sccb_reg_read(gspca_dev, (*data)[1]);
614 sccb_reg_write(gspca_dev, 0xff, 0x00);
620 /* ov772x specific controls */
621 static void set_frame_rate(struct gspca_dev *gspca_dev)
623 struct sd *sd = (struct sd *) gspca_dev;
631 const struct rate_s *r;
632 static const struct rate_s rate_0[] = { /* 640x480 */
633 {60, 0x01, 0xc1, 0x04},
634 {50, 0x01, 0x41, 0x02},
635 {40, 0x02, 0xc1, 0x04},
636 {30, 0x04, 0x81, 0x02},
637 {15, 0x03, 0x41, 0x04},
639 static const struct rate_s rate_1[] = { /* 320x240 */
640 {125, 0x02, 0x81, 0x02},
641 {100, 0x02, 0xc1, 0x04},
642 {75, 0x03, 0xc1, 0x04},
643 {60, 0x04, 0xc1, 0x04},
644 {50, 0x02, 0x41, 0x04},
645 {40, 0x03, 0x41, 0x04},
646 {30, 0x04, 0x41, 0x04},
649 if (gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv == 0) {
651 i = ARRAY_SIZE(rate_0);
654 i = ARRAY_SIZE(rate_1);
657 if (sd->frame_rate >= r->fps)
662 sccb_reg_write(gspca_dev, 0x11, r->r11);
663 sccb_reg_write(gspca_dev, 0x0d, r->r0d);
664 ov534_reg_write(gspca_dev, 0xe5, r->re5);
666 PDEBUG(D_PROBE, "frame_rate: %d", r->fps);
669 static void setbrightness(struct gspca_dev *gspca_dev)
671 struct sd *sd = (struct sd *) gspca_dev;
673 sccb_reg_write(gspca_dev, 0x9b, sd->brightness);
676 static void setcontrast(struct gspca_dev *gspca_dev)
678 struct sd *sd = (struct sd *) gspca_dev;
680 sccb_reg_write(gspca_dev, 0x9c, sd->contrast);
683 static void setgain(struct gspca_dev *gspca_dev)
685 struct sd *sd = (struct sd *) gspca_dev;
692 switch (val & 0x30) {
710 sccb_reg_write(gspca_dev, 0x00, val);
713 static void setexposure(struct gspca_dev *gspca_dev)
715 struct sd *sd = (struct sd *) gspca_dev;
721 /* 'val' is one byte and represents half of the exposure value we are
722 * going to set into registers, a two bytes value:
724 * MSB: ((u16) val << 1) >> 8 == val >> 7
725 * LSB: ((u16) val << 1) & 0xff == val << 1
728 sccb_reg_write(gspca_dev, 0x08, val >> 7);
729 sccb_reg_write(gspca_dev, 0x10, val << 1);
732 static void setagc(struct gspca_dev *gspca_dev)
734 struct sd *sd = (struct sd *) gspca_dev;
737 sccb_reg_write(gspca_dev, 0x13,
738 sccb_reg_read(gspca_dev, 0x13) | 0x04);
739 sccb_reg_write(gspca_dev, 0x64,
740 sccb_reg_read(gspca_dev, 0x64) | 0x03);
742 sccb_reg_write(gspca_dev, 0x13,
743 sccb_reg_read(gspca_dev, 0x13) & ~0x04);
744 sccb_reg_write(gspca_dev, 0x64,
745 sccb_reg_read(gspca_dev, 0x64) & ~0x03);
751 static void setawb(struct gspca_dev *gspca_dev)
753 struct sd *sd = (struct sd *) gspca_dev;
756 sccb_reg_write(gspca_dev, 0x13,
757 sccb_reg_read(gspca_dev, 0x13) | 0x02);
758 sccb_reg_write(gspca_dev, 0x63,
759 sccb_reg_read(gspca_dev, 0x63) | 0xc0);
761 sccb_reg_write(gspca_dev, 0x13,
762 sccb_reg_read(gspca_dev, 0x13) & ~0x02);
763 sccb_reg_write(gspca_dev, 0x63,
764 sccb_reg_read(gspca_dev, 0x63) & ~0xc0);
768 static void setaec(struct gspca_dev *gspca_dev)
770 struct sd *sd = (struct sd *) gspca_dev;
773 sccb_reg_write(gspca_dev, 0x13,
774 sccb_reg_read(gspca_dev, 0x13) | 0x01);
776 sccb_reg_write(gspca_dev, 0x13,
777 sccb_reg_read(gspca_dev, 0x13) & ~0x01);
778 setexposure(gspca_dev);
782 static void setsharpness(struct gspca_dev *gspca_dev)
784 struct sd *sd = (struct sd *) gspca_dev;
788 sccb_reg_write(gspca_dev, 0x91, val); /* Auto de-noise threshold */
789 sccb_reg_write(gspca_dev, 0x8e, val); /* De-noise threshold */
792 static void sethflip(struct gspca_dev *gspca_dev)
794 struct sd *sd = (struct sd *) gspca_dev;
797 sccb_reg_write(gspca_dev, 0x0c,
798 sccb_reg_read(gspca_dev, 0x0c) | 0x40);
800 sccb_reg_write(gspca_dev, 0x0c,
801 sccb_reg_read(gspca_dev, 0x0c) & ~0x40);
804 static void setvflip(struct gspca_dev *gspca_dev)
806 struct sd *sd = (struct sd *) gspca_dev;
809 sccb_reg_write(gspca_dev, 0x0c,
810 sccb_reg_read(gspca_dev, 0x0c) | 0x80);
812 sccb_reg_write(gspca_dev, 0x0c,
813 sccb_reg_read(gspca_dev, 0x0c) & ~0x80);
816 static void setfreqfltr(struct gspca_dev *gspca_dev)
818 struct sd *sd = (struct sd *) gspca_dev;
820 if (sd->freqfltr == 0)
821 sccb_reg_write(gspca_dev, 0x2b, 0x00);
823 sccb_reg_write(gspca_dev, 0x2b, 0x9e);
827 /* this function is called at probe time */
828 static int sd_config(struct gspca_dev *gspca_dev,
829 const struct usb_device_id *id)
831 struct sd *sd = (struct sd *) gspca_dev;
834 cam = &gspca_dev->cam;
836 cam->cam_mode = ov772x_mode;
837 cam->nmodes = ARRAY_SIZE(ov772x_mode);
838 cam->mode_framerates = ov772x_framerates;
841 cam->bulk_size = 16384;
846 sd->brightness = BRIGHTNESS_DEF;
847 sd->contrast = CONTRAST_DEF;
849 sd->exposure = EXPO_DEF;
853 gspca_dev->ctrl_inac |= (1 << AWB_IDX);
857 sd->sharpness = SHARPNESS_DEF;
858 sd->hflip = HFLIP_DEF;
859 sd->vflip = VFLIP_DEF;
860 sd->freqfltr = FREQFLTR_DEF;
865 /* this function is called at probe and resume time */
866 static int sd_init(struct gspca_dev *gspca_dev)
871 ov534_reg_write(gspca_dev, 0xe7, 0x3a);
872 ov534_reg_write(gspca_dev, 0xe0, 0x08);
875 /* initialize the sensor address */
876 ov534_reg_write(gspca_dev, OV534_REG_ADDRESS, 0x42);
879 sccb_reg_write(gspca_dev, 0x12, 0x80);
882 /* probe the sensor */
883 sccb_reg_read(gspca_dev, 0x0a);
884 sensor_id = sccb_reg_read(gspca_dev, 0x0a) << 8;
885 sccb_reg_read(gspca_dev, 0x0b);
886 sensor_id |= sccb_reg_read(gspca_dev, 0x0b);
887 PDEBUG(D_PROBE, "Sensor ID: %04x", sensor_id);
890 reg_w_array(gspca_dev, bridge_init,
891 ARRAY_SIZE(bridge_init));
892 ov534_set_led(gspca_dev, 1);
893 sccb_w_array(gspca_dev, sensor_init,
894 ARRAY_SIZE(sensor_init));
895 ov534_reg_write(gspca_dev, 0xe0, 0x09);
896 ov534_set_led(gspca_dev, 0);
897 set_frame_rate(gspca_dev);
899 return gspca_dev->usb_err;
902 static int sd_start(struct gspca_dev *gspca_dev)
906 mode = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv;
907 if (mode != 0) { /* 320x240 */
908 reg_w_array(gspca_dev, bridge_start_qvga,
909 ARRAY_SIZE(bridge_start_qvga));
910 sccb_w_array(gspca_dev, sensor_start_qvga,
911 ARRAY_SIZE(sensor_start_qvga));
912 } else { /* 640x480 */
913 reg_w_array(gspca_dev, bridge_start_vga,
914 ARRAY_SIZE(bridge_start_vga));
915 sccb_w_array(gspca_dev, sensor_start_vga,
916 ARRAY_SIZE(sensor_start_vga));
918 set_frame_rate(gspca_dev);
924 setexposure(gspca_dev);
925 setbrightness(gspca_dev);
926 setcontrast(gspca_dev);
927 setsharpness(gspca_dev);
930 setfreqfltr(gspca_dev);
932 ov534_set_led(gspca_dev, 1);
933 ov534_reg_write(gspca_dev, 0xe0, 0x00);
934 return gspca_dev->usb_err;
937 static void sd_stopN(struct gspca_dev *gspca_dev)
939 ov534_reg_write(gspca_dev, 0xe0, 0x09);
940 ov534_set_led(gspca_dev, 0);
943 /* Values for bmHeaderInfo (Video and Still Image Payload Headers, 2.4.3.3) */
944 #define UVC_STREAM_EOH (1 << 7)
945 #define UVC_STREAM_ERR (1 << 6)
946 #define UVC_STREAM_STI (1 << 5)
947 #define UVC_STREAM_RES (1 << 4)
948 #define UVC_STREAM_SCR (1 << 3)
949 #define UVC_STREAM_PTS (1 << 2)
950 #define UVC_STREAM_EOF (1 << 1)
951 #define UVC_STREAM_FID (1 << 0)
953 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
956 struct sd *sd = (struct sd *) gspca_dev;
959 int remaining_len = len;
962 len = min(remaining_len, 2048);
964 /* Payloads are prefixed with a UVC-style header. We
965 consider a frame to start when the FID toggles, or the PTS
966 changes. A frame ends when EOF is set, and we've received
967 the correct number of bytes. */
969 /* Verify UVC header. Header length is always 12 */
970 if (data[0] != 12 || len < 12) {
971 PDEBUG(D_PACK, "bad header");
976 if (data[1] & UVC_STREAM_ERR) {
977 PDEBUG(D_PACK, "payload error");
981 /* Extract PTS and FID */
982 if (!(data[1] & UVC_STREAM_PTS)) {
983 PDEBUG(D_PACK, "PTS not present");
986 this_pts = (data[5] << 24) | (data[4] << 16)
987 | (data[3] << 8) | data[2];
988 this_fid = (data[1] & UVC_STREAM_FID) ? 1 : 0;
990 /* If PTS or FID has changed, start a new frame. */
991 if (this_pts != sd->last_pts || this_fid != sd->last_fid) {
992 if (gspca_dev->last_packet_type == INTER_PACKET)
993 gspca_frame_add(gspca_dev, LAST_PACKET,
995 sd->last_pts = this_pts;
996 sd->last_fid = this_fid;
997 gspca_frame_add(gspca_dev, FIRST_PACKET,
998 data + 12, len - 12);
999 /* If this packet is marked as EOF, end the frame */
1000 } else if (data[1] & UVC_STREAM_EOF) {
1002 if (gspca_dev->image_len + len - 12 !=
1003 gspca_dev->width * gspca_dev->height * 2) {
1004 PDEBUG(D_PACK, "wrong sized frame");
1007 gspca_frame_add(gspca_dev, LAST_PACKET,
1008 data + 12, len - 12);
1011 /* Add the data from this payload */
1012 gspca_frame_add(gspca_dev, INTER_PACKET,
1013 data + 12, len - 12);
1016 /* Done this payload */
1020 /* Discard data until a new frame starts. */
1021 gspca_dev->last_packet_type = DISCARD_PACKET;
1024 remaining_len -= len;
1026 } while (remaining_len > 0);
1030 static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val)
1032 struct sd *sd = (struct sd *) gspca_dev;
1035 if (gspca_dev->streaming)
1040 static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val)
1042 struct sd *sd = (struct sd *) gspca_dev;
1048 static int sd_setexposure(struct gspca_dev *gspca_dev, __s32 val)
1050 struct sd *sd = (struct sd *) gspca_dev;
1053 if (gspca_dev->streaming)
1054 setexposure(gspca_dev);
1058 static int sd_getexposure(struct gspca_dev *gspca_dev, __s32 *val)
1060 struct sd *sd = (struct sd *) gspca_dev;
1062 *val = sd->exposure;
1066 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
1068 struct sd *sd = (struct sd *) gspca_dev;
1070 sd->brightness = val;
1071 if (gspca_dev->streaming)
1072 setbrightness(gspca_dev);
1076 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
1078 struct sd *sd = (struct sd *) gspca_dev;
1080 *val = sd->brightness;
1084 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
1086 struct sd *sd = (struct sd *) gspca_dev;
1089 if (gspca_dev->streaming)
1090 setcontrast(gspca_dev);
1094 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
1096 struct sd *sd = (struct sd *) gspca_dev;
1098 *val = sd->contrast;
1102 static int sd_setagc(struct gspca_dev *gspca_dev, __s32 val)
1104 struct sd *sd = (struct sd *) gspca_dev;
1108 if (gspca_dev->streaming) {
1110 /* the auto white balance control works only
1111 * when auto gain is set */
1113 gspca_dev->ctrl_inac &= ~(1 << AWB_IDX);
1115 gspca_dev->ctrl_inac |= (1 << AWB_IDX);
1121 static int sd_getagc(struct gspca_dev *gspca_dev, __s32 *val)
1123 struct sd *sd = (struct sd *) gspca_dev;
1129 static int sd_setawb(struct gspca_dev *gspca_dev, __s32 val)
1131 struct sd *sd = (struct sd *) gspca_dev;
1134 if (gspca_dev->streaming)
1139 static int sd_getawb(struct gspca_dev *gspca_dev, __s32 *val)
1141 struct sd *sd = (struct sd *) gspca_dev;
1147 static int sd_setaec(struct gspca_dev *gspca_dev, __s32 val)
1149 struct sd *sd = (struct sd *) gspca_dev;
1152 if (gspca_dev->streaming)
1157 static int sd_getaec(struct gspca_dev *gspca_dev, __s32 *val)
1159 struct sd *sd = (struct sd *) gspca_dev;
1165 static int sd_setsharpness(struct gspca_dev *gspca_dev, __s32 val)
1167 struct sd *sd = (struct sd *) gspca_dev;
1169 sd->sharpness = val;
1170 if (gspca_dev->streaming)
1171 setsharpness(gspca_dev);
1175 static int sd_getsharpness(struct gspca_dev *gspca_dev, __s32 *val)
1177 struct sd *sd = (struct sd *) gspca_dev;
1179 *val = sd->sharpness;
1183 static int sd_sethflip(struct gspca_dev *gspca_dev, __s32 val)
1185 struct sd *sd = (struct sd *) gspca_dev;
1188 if (gspca_dev->streaming)
1189 sethflip(gspca_dev);
1193 static int sd_gethflip(struct gspca_dev *gspca_dev, __s32 *val)
1195 struct sd *sd = (struct sd *) gspca_dev;
1201 static int sd_setvflip(struct gspca_dev *gspca_dev, __s32 val)
1203 struct sd *sd = (struct sd *) gspca_dev;
1206 if (gspca_dev->streaming)
1207 setvflip(gspca_dev);
1211 static int sd_getvflip(struct gspca_dev *gspca_dev, __s32 *val)
1213 struct sd *sd = (struct sd *) gspca_dev;
1219 static int sd_setfreqfltr(struct gspca_dev *gspca_dev, __s32 val)
1221 struct sd *sd = (struct sd *) gspca_dev;
1224 if (gspca_dev->streaming)
1225 setfreqfltr(gspca_dev);
1229 static int sd_getfreqfltr(struct gspca_dev *gspca_dev, __s32 *val)
1231 struct sd *sd = (struct sd *) gspca_dev;
1233 *val = sd->freqfltr;
1237 static int sd_querymenu(struct gspca_dev *gspca_dev,
1238 struct v4l2_querymenu *menu)
1241 case V4L2_CID_POWER_LINE_FREQUENCY:
1242 switch (menu->index) {
1243 case 0: /* V4L2_CID_POWER_LINE_FREQUENCY_DISABLED */
1244 strcpy((char *) menu->name, "Disabled");
1246 case 1: /* V4L2_CID_POWER_LINE_FREQUENCY_50HZ */
1247 strcpy((char *) menu->name, "50 Hz");
1256 /* get stream parameters (framerate) */
1257 static void sd_get_streamparm(struct gspca_dev *gspca_dev,
1258 struct v4l2_streamparm *parm)
1260 struct v4l2_captureparm *cp = &parm->parm.capture;
1261 struct v4l2_fract *tpf = &cp->timeperframe;
1262 struct sd *sd = (struct sd *) gspca_dev;
1264 cp->capability |= V4L2_CAP_TIMEPERFRAME;
1266 tpf->denominator = sd->frame_rate;
1269 /* set stream parameters (framerate) */
1270 static void sd_set_streamparm(struct gspca_dev *gspca_dev,
1271 struct v4l2_streamparm *parm)
1273 struct v4l2_captureparm *cp = &parm->parm.capture;
1274 struct v4l2_fract *tpf = &cp->timeperframe;
1275 struct sd *sd = (struct sd *) gspca_dev;
1277 /* Set requested framerate */
1278 sd->frame_rate = tpf->denominator / tpf->numerator;
1279 if (gspca_dev->streaming)
1280 set_frame_rate(gspca_dev);
1282 /* Return the actual framerate */
1284 tpf->denominator = sd->frame_rate;
1287 /* sub-driver description */
1288 static const struct sd_desc sd_desc = {
1289 .name = MODULE_NAME,
1291 .nctrls = ARRAY_SIZE(sd_ctrls),
1292 .config = sd_config,
1296 .pkt_scan = sd_pkt_scan,
1297 .querymenu = sd_querymenu,
1298 .get_streamparm = sd_get_streamparm,
1299 .set_streamparm = sd_set_streamparm,
1302 /* -- module initialisation -- */
1303 static const struct usb_device_id device_table[] = {
1304 {USB_DEVICE(0x1415, 0x2000)},
1308 MODULE_DEVICE_TABLE(usb, device_table);
1310 /* -- device connect -- */
1311 static int sd_probe(struct usb_interface *intf, const struct usb_device_id *id)
1313 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
1317 static struct usb_driver sd_driver = {
1318 .name = MODULE_NAME,
1319 .id_table = device_table,
1321 .disconnect = gspca_disconnect,
1323 .suspend = gspca_suspend,
1324 .resume = gspca_resume,
1328 /* -- module insert / remove -- */
1329 static int __init sd_mod_init(void)
1331 return usb_register(&sd_driver);
1334 static void __exit sd_mod_exit(void)
1336 usb_deregister(&sd_driver);
1339 module_init(sd_mod_init);
1340 module_exit(sd_mod_exit);