2 * kinect sensor device camera, gspca driver
4 * Copyright (C) 2011 Antonio Ospite <ospite@studenti.unina.it>
6 * Based on the OpenKinect project and libfreenect
7 * http://openkinect.org/wiki/Init_Analysis
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 #define MODULE_NAME "kinect"
28 #define CTRL_TIMEOUT 500
30 MODULE_AUTHOR("Antonio Ospite <ospite@studenti.unina.it>");
31 MODULE_DESCRIPTION("GSPCA/Kinect Sensor Device USB Camera Driver");
32 MODULE_LICENSE("GPL");
52 int gspca_debug = D_ERR | D_PROBE | D_CONF | D_STREAM | D_FRAM | D_PACK |
53 D_USBI | D_USBO | D_V4L2;
55 /* specific webcam descriptor */
57 struct gspca_dev gspca_dev; /* !! must be the first item */
61 /* V4L2 controls supported by the driver */
62 /* controls prototypes here */
64 static const struct ctrl sd_ctrls[] = {
67 #define MODE_640x480 0x0001
68 #define MODE_640x488 0x0002
69 #define MODE_1280x1024 0x0004
71 #define FORMAT_BAYER 0x0010
72 #define FORMAT_UYVY 0x0020
73 #define FORMAT_Y10B 0x0040
75 #define FPS_HIGH 0x0100
77 static const struct v4l2_pix_format video_camera_mode[] = {
78 {640, 480, V4L2_PIX_FMT_SGRBG8, V4L2_FIELD_NONE,
80 .sizeimage = 640 * 480,
81 .colorspace = V4L2_COLORSPACE_SRGB,
82 .priv = MODE_640x480 | FORMAT_BAYER | FPS_HIGH},
83 {640, 480, V4L2_PIX_FMT_UYVY, V4L2_FIELD_NONE,
84 .bytesperline = 640 * 2,
85 .sizeimage = 640 * 480 * 2,
86 .colorspace = V4L2_COLORSPACE_SRGB,
87 .priv = MODE_640x480 | FORMAT_UYVY},
88 {1280, 1024, V4L2_PIX_FMT_SGRBG8, V4L2_FIELD_NONE,
90 .sizeimage = 1280 * 1024,
91 .colorspace = V4L2_COLORSPACE_SRGB,
92 .priv = MODE_1280x1024 | FORMAT_BAYER},
93 {640, 488, V4L2_PIX_FMT_Y10BPACK, V4L2_FIELD_NONE,
94 .bytesperline = 640 * 10 / 8,
95 .sizeimage = 640 * 488 * 10 / 8,
96 .colorspace = V4L2_COLORSPACE_SRGB,
97 .priv = MODE_640x488 | FORMAT_Y10B | FPS_HIGH},
98 {1280, 1024, V4L2_PIX_FMT_Y10BPACK, V4L2_FIELD_NONE,
99 .bytesperline = 1280 * 10 / 8,
100 .sizeimage = 1280 * 1024 * 10 / 8,
101 .colorspace = V4L2_COLORSPACE_SRGB,
102 .priv = MODE_1280x1024 | FORMAT_Y10B},
105 static int kinect_write(struct usb_device *udev, uint8_t *data, uint16_t wLength)
107 return usb_control_msg(udev,
108 usb_sndctrlpipe(udev, 0),
110 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
111 0, 0, data, wLength, CTRL_TIMEOUT);
114 static int kinect_read(struct usb_device *udev, uint8_t *data, uint16_t wLength)
116 return usb_control_msg(udev,
117 usb_rcvctrlpipe(udev, 0),
119 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
120 0, 0, data, wLength, CTRL_TIMEOUT);
123 static int send_cmd(struct gspca_dev *gspca_dev, uint16_t cmd, void *cmdbuf,
124 unsigned int cmd_len, void *replybuf, unsigned int reply_len)
126 struct sd *sd = (struct sd *) gspca_dev;
127 struct usb_device *udev = gspca_dev->dev;
131 cam_hdr *chdr = (void*)obuf;
132 cam_hdr *rhdr = (void*)ibuf;
134 if (cmd_len & 1 || cmd_len > (0x400 - sizeof(*chdr))) {
135 err("send_cmd: Invalid command length (0x%x)", cmd_len);
139 chdr->magic[0] = 0x47;
140 chdr->magic[1] = 0x4d;
141 chdr->cmd = cpu_to_le16(cmd);
142 chdr->tag = cpu_to_le16(sd->cam_tag);
143 chdr->len = cpu_to_le16(cmd_len / 2);
145 memcpy(obuf+sizeof(*chdr), cmdbuf, cmd_len);
147 res = kinect_write(udev, obuf, cmd_len + sizeof(*chdr));
148 info("Control cmd=%04x tag=%04x len=%04x: %d", cmd, sd->cam_tag, cmd_len, res);
150 err("send_cmd: Output control transfer failed (%d)", res);
155 actual_len = kinect_read(udev, ibuf, 0x200);
156 } while (actual_len == 0);
157 info("Control reply: %d", res);
158 if (actual_len < sizeof(*rhdr)) {
159 err("send_cmd: Input control transfer failed (%d)", res);
162 actual_len -= sizeof(*rhdr);
164 if (rhdr->magic[0] != 0x52 || rhdr->magic[1] != 0x42) {
165 err("send_cmd: Bad magic %02x %02x", rhdr->magic[0], rhdr->magic[1]);
168 if (rhdr->cmd != chdr->cmd) {
169 err("send_cmd: Bad cmd %02x != %02x", rhdr->cmd, chdr->cmd);
172 if (rhdr->tag != chdr->tag) {
173 err("send_cmd: Bad tag %04x != %04x", rhdr->tag, chdr->tag);
176 if (cpu_to_le16(rhdr->len) != (actual_len/2)) {
177 err("send_cmd: Bad len %04x != %04x",
178 cpu_to_le16(rhdr->len), (int)(actual_len/2));
182 if (actual_len > reply_len) {
183 warn("send_cmd: Data buffer is %d bytes long, but got %d bytes",
184 reply_len, actual_len);
185 memcpy(replybuf, ibuf+sizeof(*rhdr), reply_len);
187 memcpy(replybuf, ibuf+sizeof(*rhdr), actual_len);
195 static int write_register(struct gspca_dev *gspca_dev, uint16_t reg, uint16_t data)
201 cmd[0] = cpu_to_le16(reg);
202 cmd[1] = cpu_to_le16(data);
204 PDEBUG(D_USBO, "Write Reg 0x%04x <= 0x%02x", reg, data);
205 res = send_cmd(gspca_dev, 0x03, cmd, 4, reply, 4);
209 warn("send_cmd returned %d [%04x %04x], 0000 expected",
210 res, reply[0], reply[1]);
215 /* this function is called at probe time */
216 static int sd_config(struct gspca_dev *gspca_dev,
217 const struct usb_device_id *id)
219 struct sd *sd = (struct sd *) gspca_dev;
224 cam = &gspca_dev->cam;
226 cam->cam_mode = video_camera_mode;
227 cam->nmodes = ARRAY_SIZE(video_camera_mode);
230 //gspca_dev->pkt_size = 960 * 2;
235 /* this function is called at probe and resume time */
236 static int sd_init(struct gspca_dev *gspca_dev)
238 PDEBUG(D_PROBE, "Kinect Camera device.");
243 static int sd_start(struct gspca_dev *gspca_dev)
246 uint8_t fmt_reg, fmt_val;
247 uint8_t res_reg, res_val;
248 uint8_t fps_reg, fps_val;
251 mode = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv;
253 if (mode & FORMAT_Y10B) {
266 if (mode & FORMAT_UYVY)
271 if (mode & MODE_1280x1024)
282 /* turn off IR-reset function */
283 write_register(gspca_dev, 0x105, 0x00);
285 /* Reset video stream */
286 write_register(gspca_dev, 0x05, 0x00);
288 /* Due to some ridiculous condition in the firmware, we have to start
289 * and stop the depth stream before the camera will hand us 1280x1024
290 * IR. This is a stupid workaround, but we've yet to find a better
293 * Thanks to Drew Fisher for figuring this out.
295 if (mode & (FORMAT_Y10B | MODE_1280x1024)) {
296 write_register(gspca_dev, 0x13, 0x01);
297 write_register(gspca_dev, 0x14, 0x1e);
298 write_register(gspca_dev, 0x06, 0x02);
299 write_register(gspca_dev, 0x06, 0x00);
302 write_register(gspca_dev, fmt_reg, fmt_val);
303 write_register(gspca_dev, res_reg, res_val);
304 write_register(gspca_dev, fps_reg, fps_val);
306 /* Start video stream */
307 write_register(gspca_dev, 0x05, mode_val);
310 write_register(gspca_dev, 0x47, 0x00);
315 static void sd_stopN(struct gspca_dev *gspca_dev)
317 write_register(gspca_dev, 0x05, 0x00); // reset video stream
320 static void sd_pkt_scan(struct gspca_dev *gspca_dev, u8 *__data, int len)
322 //struct sd *sd = (struct sd *) gspca_dev;
324 struct pkt_hdr *hdr = (void*)__data;
325 uint8_t *data = __data + sizeof(*hdr);
326 int datalen = len - sizeof(*hdr);
328 /* strm->flag == 0x80 for the color camera stream */
329 uint8_t sof = 0x80 | 1;
330 uint8_t mof = 0x80 | 2;
331 uint8_t eof = 0x80 | 5;
336 if (hdr->magic[0] != 'R' || hdr->magic[1] != 'B') {
337 warn("[Stream %02x] Invalid magic %02x%02x", 0x80, //strm->flag
338 hdr->magic[0], hdr->magic[1]);
342 if (hdr->flag == sof)
343 gspca_frame_add(gspca_dev, FIRST_PACKET, data, datalen);
345 else if (hdr->flag == mof)
346 gspca_frame_add(gspca_dev, INTER_PACKET, data, datalen);
348 else if(hdr->flag == eof)
349 gspca_frame_add(gspca_dev, LAST_PACKET, data, datalen);
352 warn("Not recognized...");
355 /* sub-driver description */
356 static const struct sd_desc sd_desc = {
359 .nctrls = ARRAY_SIZE(sd_ctrls),
364 .pkt_scan = sd_pkt_scan,
366 .querymenu = sd_querymenu,
367 .get_streamparm = sd_get_streamparm,
368 .set_streamparm = sd_set_streamparm,
372 /* -- module initialisation -- */
373 static const __devinitdata struct usb_device_id device_table[] = {
374 {USB_DEVICE(0x045e, 0x02ae)},
378 MODULE_DEVICE_TABLE(usb, device_table);
380 /* -- device connect -- */
381 static int sd_probe(struct usb_interface *intf, const struct usb_device_id *id)
383 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
387 static struct usb_driver sd_driver = {
389 .id_table = device_table,
391 .disconnect = gspca_disconnect,
393 .suspend = gspca_suspend,
394 .resume = gspca_resume,
398 /* -- module insert / remove -- */
399 static int __init sd_mod_init(void)
401 return usb_register(&sd_driver);
404 static void __exit sd_mod_exit(void)
406 usb_deregister(&sd_driver);
409 module_init(sd_mod_init);
410 module_exit(sd_mod_exit);