2 * Mars-Semi MR97311A library
3 * Copyright (C) 2005 <bradlch@hotmail.com>
5 * V4L2 by Jean-Francois Moine <http://moinejf.free.fr>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #define MODULE_NAME "mars"
25 #define QUANT_VAL 1 /* quantization table */
28 MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
29 MODULE_DESCRIPTION("GSPCA/Mars USB Camera Driver");
30 MODULE_LICENSE("GPL");
32 /* specific webcam descriptor */
34 struct gspca_dev gspca_dev; /* !! must be the first item */
37 /* V4L2 controls supported by the driver */
38 static struct ctrl sd_ctrls[] = {
41 static const struct v4l2_pix_format vga_mode[] = {
42 {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
44 .sizeimage = 320 * 240 * 3 / 8 + 589,
45 .colorspace = V4L2_COLORSPACE_JPEG,
47 {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
49 .sizeimage = 640 * 480 * 3 / 8 + 590,
50 .colorspace = V4L2_COLORSPACE_JPEG,
54 /* MI Register table //elvis */
82 ATTR_TOTAL_MI_REG = 0xf2
85 /* the bytes to write are in gspca_dev->usb_buf */
86 static int reg_w(struct gspca_dev *gspca_dev,
91 rc = usb_control_msg(gspca_dev->dev,
92 usb_sndbulkpipe(gspca_dev->dev, 4),
96 index, gspca_dev->usb_buf, len, 500);
98 PDEBUG(D_ERR, "reg write [%02x] error %d", index, rc);
102 static void bulk_w(struct gspca_dev *gspca_dev,
106 gspca_dev->usb_buf[0] = 0x1f;
107 gspca_dev->usb_buf[1] = 0; /* control byte */
108 gspca_dev->usb_buf[2] = Address;
109 gspca_dev->usb_buf[3] = *pch >> 8; /* high byte */
110 gspca_dev->usb_buf[4] = *pch; /* low byte */
112 reg_w(gspca_dev, Address, 5);
115 /* this function is called at probe time */
116 static int sd_config(struct gspca_dev *gspca_dev,
117 const struct usb_device_id *id)
121 cam = &gspca_dev->cam;
122 cam->cam_mode = vga_mode;
123 cam->nmodes = ARRAY_SIZE(vga_mode);
127 /* this function is called at probe and resume time */
128 static int sd_init(struct gspca_dev *gspca_dev)
133 static int sd_start(struct gspca_dev *gspca_dev)
141 PDEBUG(D_STREAM, "camera start, iface %d, alt 8", gspca_dev->iface);
142 err_code = usb_set_interface(gspca_dev->dev, gspca_dev->iface, 8);
144 PDEBUG(D_ERR|D_STREAM, "Set packet size: set interface error");
148 data = gspca_dev->usb_buf;
149 data[0] = 0x01; /* address */
152 err_code = reg_w(gspca_dev, data[0], 2);
157 Initialize the MR97113 chip register
159 data[0] = 0x00; /* address */
160 data[1] = 0x0c | 0x01; /* reg 0 */
161 data[2] = 0x01; /* reg 1 */
162 h_size = gspca_dev->width;
163 v_size = gspca_dev->height;
164 data[3] = h_size / 8; /* h_size , reg 2 */
165 data[4] = v_size / 8; /* v_size , reg 3 */
166 data[5] = 0x30; /* reg 4, MI, PAS5101 :
167 * 0x30 for 24mhz , 0x28 for 12mhz */
168 data[6] = 4; /* reg 5, H start */
169 data[7] = 0xc0; /* reg 6, gamma 1.5 */
170 data[8] = 3; /* reg 7, V start */
171 /* if (h_size == 320 ) */
172 /* data[9]= 0x56; * reg 8, 24MHz, 2:1 scale down */
174 data[9] = 0x52; /* reg 8, 24MHz, no scale down */
175 data[10] = 0x5d; /* reg 9, I2C device address
176 * [for PAS5101 (0x40)] [for MI (0x5d)] */
178 err_code = reg_w(gspca_dev, data[0], 11);
182 data[0] = 0x23; /* address */
183 data[1] = 0x09; /* reg 35, append frame header */
185 err_code = reg_w(gspca_dev, data[0], 2);
189 data[0] = 0x3c; /* address */
190 /* if (gspca_dev->width == 1280) */
191 /* data[1] = 200; * reg 60, pc-cam frame size
192 * (unit: 4KB) 800KB */
194 data[1] = 50; /* 50 reg 60, pc-cam frame size
195 * (unit: 4KB) 200KB */
196 err_code = reg_w(gspca_dev, data[0], 2);
200 if (0) { /* fixed dark-gain */
201 data[1] = 0; /* reg 94, Y Gain (1.75) */
202 data[2] = 0; /* reg 95, UV Gain (1.75) */
203 data[3] = 0x3f; /* reg 96, Y Gain/UV Gain/disable
205 data[4] = 0; /* reg 97, set fixed dark level */
206 data[5] = 0; /* reg 98, don't care */
207 } else { /* auto dark-gain */
208 data[1] = 0; /* reg 94, Y Gain (auto) */
209 data[2] = 0; /* reg 95, UV Gain (1.75) */
210 data[3] = 0x78; /* reg 96, Y Gain/UV Gain/disable
212 switch (gspca_dev->width) {
215 * reg 97, %3 shadow point (unit: 256 pixel) */
217 * reg 98, %1 highlight point
218 * (uint: 256 pixel) */
222 data[4] = 36; /* reg 97, %3 shadow point
223 * (unit: 256 pixel) */
224 data[5] = 12; /* reg 98, %1 highlight point
225 * (uint: 256 pixel) */
228 data[4] = 9; /* reg 97, %3 shadow point
229 * (unit: 256 pixel) */
230 data[5] = 3; /* reg 98, %1 highlight point
231 * (uint: 256 pixel) */
236 data[0] = 0x5e; /* address */
238 err_code = reg_w(gspca_dev, data[0], 6);
243 data[1] = 0x13; /* reg 103, first pixel B, disable sharpness */
244 err_code = reg_w(gspca_dev, data[0], 2);
249 * initialize the value of MI sensor...
251 MI_buf = kzalloc(ATTR_TOTAL_MI_REG * sizeof *MI_buf, GFP_KERNEL);
252 MI_buf[REG_HW_MI_1] = 0x000a;
253 MI_buf[REG_HW_MI_2] = 0x000c;
254 MI_buf[REG_HW_MI_3] = 0x0405;
255 MI_buf[REG_HW_MI_4] = 0x0507;
256 /* mi_Attr_Reg_[REG_HW_MI_5] = 0x01ff;//13 */
257 MI_buf[REG_HW_MI_5] = 0x0013; /* 13 */
258 MI_buf[REG_HW_MI_6] = 0x001f; /* vertical blanking */
259 /* mi_Attr_Reg_[REG_HW_MI_6] = 0x0400; // vertical blanking */
260 MI_buf[REG_HW_MI_7] = 0x0002;
261 /* mi_Attr_Reg_[REG_HW_MI_9] = 0x015f; */
262 /* mi_Attr_Reg_[REG_HW_MI_9] = 0x030f; */
263 MI_buf[REG_HW_MI_9] = 0x0374;
264 MI_buf[REG_HW_MI_B] = 0x0000;
265 MI_buf[REG_HW_MI_C] = 0x0000;
266 MI_buf[REG_HW_MI_D] = 0x0000;
267 MI_buf[REG_HW_MI_1E] = 0x8000;
268 /* mi_Attr_Reg_[REG_HW_MI_20] = 0x1104; */
269 MI_buf[REG_HW_MI_20] = 0x1104; /* 0x111c; */
270 MI_buf[REG_HW_MI_2B] = 0x0008;
271 /* mi_Attr_Reg_[REG_HW_MI_2C] = 0x000f; */
272 MI_buf[REG_HW_MI_2C] = 0x001f; /* lita suggest */
273 MI_buf[REG_HW_MI_2D] = 0x0008;
274 MI_buf[REG_HW_MI_2E] = 0x0008;
275 MI_buf[REG_HW_MI_35] = 0x0051;
276 MI_buf[REG_HW_MI_5F] = 0x0904; /* fail to write */
277 MI_buf[REG_HW_MI_60] = 0x0000;
278 MI_buf[REG_HW_MI_61] = 0x0000;
279 MI_buf[REG_HW_MI_62] = 0x0498;
280 MI_buf[REG_HW_MI_63] = 0x0000;
281 MI_buf[REG_HW_MI_64] = 0x0000;
282 MI_buf[REG_HW_MI_F1] = 0x0001;
283 /* changing while setting up the different value of dx/dy */
285 if (gspca_dev->width != 1280) {
286 MI_buf[0x01] = 0x010a;
287 MI_buf[0x02] = 0x014c;
288 MI_buf[0x03] = 0x01e5;
289 MI_buf[0x04] = 0x0287;
291 MI_buf[0x20] = 0x1104;
293 bulk_w(gspca_dev, MI_buf + 1, 1);
294 bulk_w(gspca_dev, MI_buf + 2, 2);
295 bulk_w(gspca_dev, MI_buf + 3, 3);
296 bulk_w(gspca_dev, MI_buf + 4, 4);
297 bulk_w(gspca_dev, MI_buf + 5, 5);
298 bulk_w(gspca_dev, MI_buf + 6, 6);
299 bulk_w(gspca_dev, MI_buf + 7, 7);
300 bulk_w(gspca_dev, MI_buf + 9, 9);
301 bulk_w(gspca_dev, MI_buf + 0x0b, 0x0b);
302 bulk_w(gspca_dev, MI_buf + 0x0c, 0x0c);
303 bulk_w(gspca_dev, MI_buf + 0x0d, 0x0d);
304 bulk_w(gspca_dev, MI_buf + 0x1e, 0x1e);
305 bulk_w(gspca_dev, MI_buf + 0x20, 0x20);
306 bulk_w(gspca_dev, MI_buf + 0x2b, 0x2b);
307 bulk_w(gspca_dev, MI_buf + 0x2c, 0x2c);
308 bulk_w(gspca_dev, MI_buf + 0x2d, 0x2d);
309 bulk_w(gspca_dev, MI_buf + 0x2e, 0x2e);
310 bulk_w(gspca_dev, MI_buf + 0x35, 0x35);
311 bulk_w(gspca_dev, MI_buf + 0x5f, 0x5f);
312 bulk_w(gspca_dev, MI_buf + 0x60, 0x60);
313 bulk_w(gspca_dev, MI_buf + 0x61, 0x61);
314 bulk_w(gspca_dev, MI_buf + 0x62, 0x62);
315 bulk_w(gspca_dev, MI_buf + 0x63, 0x63);
316 bulk_w(gspca_dev, MI_buf + 0x64, 0x64);
317 bulk_w(gspca_dev, MI_buf + 0xf1, 0xf1);
320 intpipe = usb_sndintpipe(gspca_dev->dev, 0);
321 err_code = usb_clear_halt(gspca_dev->dev, intpipe);
324 data[1] = 0x4d; /* ISOC transfering enable... */
325 reg_w(gspca_dev, data[0], 2);
329 static void sd_stopN(struct gspca_dev *gspca_dev)
333 gspca_dev->usb_buf[0] = 1;
334 gspca_dev->usb_buf[1] = 0;
335 result = reg_w(gspca_dev, gspca_dev->usb_buf[0], 2);
337 PDEBUG(D_ERR, "Camera Stop failed");
340 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
341 struct gspca_frame *frame, /* target */
342 __u8 *data, /* isoc packet */
343 int len) /* iso packet length */
348 /* gspca_dev->last_packet_type = DISCARD_PACKET; */
351 for (p = 0; p < len - 6; p++) {
352 if (data[0 + p] == 0xff
353 && data[1 + p] == 0xff
354 && data[2 + p] == 0x00
355 && data[3 + p] == 0xff
356 && data[4 + p] == 0x96) {
357 if (data[5 + p] == 0x64
358 || data[5 + p] == 0x65
359 || data[5 + p] == 0x66
360 || data[5 + p] == 0x67) {
361 PDEBUG(D_PACK, "sof offset: %d leng: %d",
363 frame = gspca_frame_add(gspca_dev, LAST_PACKET,
366 /* put the JPEG header */
367 jpeg_put_header(gspca_dev, frame, 0x21);
374 gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
377 /* sub-driver description */
378 static const struct sd_desc sd_desc = {
381 .nctrls = ARRAY_SIZE(sd_ctrls),
386 .pkt_scan = sd_pkt_scan,
389 /* -- module initialisation -- */
390 static const __devinitdata struct usb_device_id device_table[] = {
391 {USB_DEVICE(0x093a, 0x050f)},
394 MODULE_DEVICE_TABLE(usb, device_table);
396 /* -- device connect -- */
397 static int sd_probe(struct usb_interface *intf,
398 const struct usb_device_id *id)
400 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
404 static struct usb_driver sd_driver = {
406 .id_table = device_table,
408 .disconnect = gspca_disconnect,
410 .suspend = gspca_suspend,
411 .resume = gspca_resume,
415 /* -- module insert / remove -- */
416 static int __init sd_mod_init(void)
419 ret = usb_register(&sd_driver);
422 PDEBUG(D_PROBE, "registered");
425 static void __exit sd_mod_exit(void)
427 usb_deregister(&sd_driver);
428 PDEBUG(D_PROBE, "deregistered");
431 module_init(sd_mod_init);
432 module_exit(sd_mod_exit);