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 pr_fmt(fmt) KBUILD_MODNAME ": " fmt
24 #define MODULE_NAME "mars"
29 MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
30 MODULE_DESCRIPTION("GSPCA/Mars USB Camera Driver");
31 MODULE_LICENSE("GPL");
35 /* specific webcam descriptor */
37 struct gspca_dev gspca_dev; /* !! must be the first item */
39 struct v4l2_ctrl *brightness;
40 struct v4l2_ctrl *saturation;
41 struct v4l2_ctrl *sharpness;
42 struct v4l2_ctrl *gamma;
43 struct { /* illuminator control cluster */
44 struct v4l2_ctrl *illum_top;
45 struct v4l2_ctrl *illum_bottom;
47 u8 jpeg_hdr[JPEG_HDR_SZ];
50 /* V4L2 controls supported by the driver */
51 static void setbrightness(struct gspca_dev *gspca_dev, s32 val);
52 static void setcolors(struct gspca_dev *gspca_dev, s32 val);
53 static void setgamma(struct gspca_dev *gspca_dev, s32 val);
54 static void setsharpness(struct gspca_dev *gspca_dev, s32 val);
56 static const struct v4l2_pix_format vga_mode[] = {
57 {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
59 .sizeimage = 320 * 240 * 3 / 8 + 590,
60 .colorspace = V4L2_COLORSPACE_JPEG,
62 {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
64 .sizeimage = 640 * 480 * 3 / 8 + 590,
65 .colorspace = V4L2_COLORSPACE_JPEG,
69 static const __u8 mi_data[0x20] = {
70 /* 01 02 03 04 05 06 07 08 */
71 0x48, 0x22, 0x01, 0x47, 0x10, 0x00, 0x00, 0x00,
72 /* 09 0a 0b 0c 0d 0e 0f 10 */
73 0x00, 0x01, 0x30, 0x01, 0x30, 0x01, 0x30, 0x01,
74 /* 11 12 13 14 15 16 17 18 */
75 0x30, 0x00, 0x04, 0x00, 0x06, 0x01, 0xe2, 0x02,
76 /* 19 1a 1b 1c 1d 1e 1f 20 */
77 0x82, 0x00, 0x20, 0x17, 0x80, 0x08, 0x0c, 0x00
80 /* write <len> bytes from gspca_dev->usb_buf */
81 static void reg_w(struct gspca_dev *gspca_dev,
86 if (gspca_dev->usb_err < 0)
89 ret = usb_bulk_msg(gspca_dev->dev,
90 usb_sndbulkpipe(gspca_dev->dev, 4),
94 500); /* timeout in milliseconds */
96 pr_err("reg write [%02x] error %d\n",
97 gspca_dev->usb_buf[0], ret);
98 gspca_dev->usb_err = ret;
102 static void mi_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] = addr;
109 gspca_dev->usb_buf[3] = value;
114 static void setbrightness(struct gspca_dev *gspca_dev, s32 val)
116 gspca_dev->usb_buf[0] = 0x61;
117 gspca_dev->usb_buf[1] = val;
121 static void setcolors(struct gspca_dev *gspca_dev, s32 val)
123 gspca_dev->usb_buf[0] = 0x5f;
124 gspca_dev->usb_buf[1] = val << 3;
125 gspca_dev->usb_buf[2] = ((val >> 2) & 0xf8) | 0x04;
129 static void setgamma(struct gspca_dev *gspca_dev, s32 val)
131 gspca_dev->usb_buf[0] = 0x06;
132 gspca_dev->usb_buf[1] = val * 0x40;
136 static void setsharpness(struct gspca_dev *gspca_dev, s32 val)
138 gspca_dev->usb_buf[0] = 0x67;
139 gspca_dev->usb_buf[1] = val * 4 + 3;
143 static void setilluminators(struct gspca_dev *gspca_dev, bool top, bool bottom)
145 /* both are off if not streaming */
146 gspca_dev->usb_buf[0] = 0x22;
148 gspca_dev->usb_buf[1] = 0x76;
150 gspca_dev->usb_buf[1] = 0x7a;
152 gspca_dev->usb_buf[1] = 0x7e;
156 static int mars_s_ctrl(struct v4l2_ctrl *ctrl)
158 struct gspca_dev *gspca_dev =
159 container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
160 struct sd *sd = (struct sd *)gspca_dev;
162 gspca_dev->usb_err = 0;
164 if (ctrl->id == V4L2_CID_ILLUMINATORS_1) {
165 /* only one can be on at a time */
166 if (ctrl->is_new && ctrl->val)
167 sd->illum_bottom->val = 0;
168 if (sd->illum_bottom->is_new && sd->illum_bottom->val)
169 sd->illum_top->val = 0;
172 if (!gspca_dev->streaming)
176 case V4L2_CID_BRIGHTNESS:
177 setbrightness(gspca_dev, ctrl->val);
179 case V4L2_CID_SATURATION:
180 setcolors(gspca_dev, ctrl->val);
183 setgamma(gspca_dev, ctrl->val);
185 case V4L2_CID_ILLUMINATORS_1:
186 setilluminators(gspca_dev, sd->illum_top->val,
187 sd->illum_bottom->val);
189 case V4L2_CID_SHARPNESS:
190 setsharpness(gspca_dev, ctrl->val);
195 return gspca_dev->usb_err;
198 static const struct v4l2_ctrl_ops mars_ctrl_ops = {
199 .s_ctrl = mars_s_ctrl,
202 /* this function is called at probe time */
203 static int sd_init_controls(struct gspca_dev *gspca_dev)
205 struct sd *sd = (struct sd *) gspca_dev;
206 struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;
208 gspca_dev->vdev.ctrl_handler = hdl;
209 v4l2_ctrl_handler_init(hdl, 6);
210 sd->brightness = v4l2_ctrl_new_std(hdl, &mars_ctrl_ops,
211 V4L2_CID_BRIGHTNESS, 0, 30, 1, 15);
212 sd->saturation = v4l2_ctrl_new_std(hdl, &mars_ctrl_ops,
213 V4L2_CID_SATURATION, 0, 255, 1, 200);
214 sd->gamma = v4l2_ctrl_new_std(hdl, &mars_ctrl_ops,
215 V4L2_CID_GAMMA, 0, 3, 1, 1);
216 sd->sharpness = v4l2_ctrl_new_std(hdl, &mars_ctrl_ops,
217 V4L2_CID_SHARPNESS, 0, 2, 1, 1);
218 sd->illum_top = v4l2_ctrl_new_std(hdl, &mars_ctrl_ops,
219 V4L2_CID_ILLUMINATORS_1, 0, 1, 1, 0);
220 sd->illum_top->flags |= V4L2_CTRL_FLAG_UPDATE;
221 sd->illum_bottom = v4l2_ctrl_new_std(hdl, &mars_ctrl_ops,
222 V4L2_CID_ILLUMINATORS_2, 0, 1, 1, 0);
223 sd->illum_bottom->flags |= V4L2_CTRL_FLAG_UPDATE;
225 pr_err("Could not initialize controls\n");
228 v4l2_ctrl_cluster(2, &sd->illum_top);
232 /* this function is called at probe time */
233 static int sd_config(struct gspca_dev *gspca_dev,
234 const struct usb_device_id *id)
238 cam = &gspca_dev->cam;
239 cam->cam_mode = vga_mode;
240 cam->nmodes = ARRAY_SIZE(vga_mode);
244 /* this function is called at probe and resume time */
245 static int sd_init(struct gspca_dev *gspca_dev)
250 static int sd_start(struct gspca_dev *gspca_dev)
252 struct sd *sd = (struct sd *) gspca_dev;
256 /* create the JPEG header */
257 jpeg_define(sd->jpeg_hdr, gspca_dev->pixfmt.height,
258 gspca_dev->pixfmt.width,
259 0x21); /* JPEG 422 */
260 jpeg_set_qual(sd->jpeg_hdr, QUALITY);
262 data = gspca_dev->usb_buf;
264 data[0] = 0x01; /* address */
269 Initialize the MR97113 chip register
271 data[0] = 0x00; /* address */
272 data[1] = 0x0c | 0x01; /* reg 0 */
273 data[2] = 0x01; /* reg 1 */
274 data[3] = gspca_dev->pixfmt.width / 8; /* h_size , reg 2 */
275 data[4] = gspca_dev->pixfmt.height / 8; /* v_size , reg 3 */
276 data[5] = 0x30; /* reg 4, MI, PAS5101 :
277 * 0x30 for 24mhz , 0x28 for 12mhz */
278 data[6] = 0x02; /* reg 5, H start - was 0x04 */
279 data[7] = v4l2_ctrl_g_ctrl(sd->gamma) * 0x40; /* reg 0x06: gamma */
280 data[8] = 0x01; /* reg 7, V start - was 0x03 */
281 /* if (h_size == 320 ) */
282 /* data[9]= 0x56; * reg 8, 24MHz, 2:1 scale down */
284 data[9] = 0x52; /* reg 8, 24MHz, no scale down */
285 /*jfm: from win trace*/
288 reg_w(gspca_dev, 11);
290 data[0] = 0x23; /* address */
291 data[1] = 0x09; /* reg 35, append frame header */
295 data[0] = 0x3c; /* address */
296 /* if (gspca_dev->width == 1280) */
297 /* data[1] = 200; * reg 60, pc-cam frame size
298 * (unit: 4KB) 800KB */
300 data[1] = 50; /* 50 reg 60, pc-cam frame size
301 * (unit: 4KB) 200KB */
305 data[0] = 0x5e; /* address */
306 data[1] = 0; /* reg 94, Y Gain (auto) */
307 /*jfm: from win trace*/
308 /* reg 0x5f/0x60 (LE) = saturation */
310 * l (5f): xxxx x000 */
311 data[2] = v4l2_ctrl_g_ctrl(sd->saturation) << 3;
312 data[3] = ((v4l2_ctrl_g_ctrl(sd->saturation) >> 2) & 0xf8) | 0x04;
313 data[4] = v4l2_ctrl_g_ctrl(sd->brightness); /* reg 0x61 = brightness */
319 /*jfm: from win trace*/
320 data[1] = v4l2_ctrl_g_ctrl(sd->sharpness) * 4 + 3;
333 /*jfm: win trace - many writes here to reg 0x64*/
335 /* initialize the MI sensor */
336 for (i = 0; i < sizeof mi_data; i++)
337 mi_w(gspca_dev, i + 1, mi_data[i]);
340 data[1] = 0x4d; /* ISOC transferring enable... */
343 setilluminators(gspca_dev, v4l2_ctrl_g_ctrl(sd->illum_top),
344 v4l2_ctrl_g_ctrl(sd->illum_bottom));
346 return gspca_dev->usb_err;
349 static void sd_stopN(struct gspca_dev *gspca_dev)
351 struct sd *sd = (struct sd *) gspca_dev;
353 if (v4l2_ctrl_g_ctrl(sd->illum_top) ||
354 v4l2_ctrl_g_ctrl(sd->illum_bottom)) {
355 setilluminators(gspca_dev, false, false);
359 gspca_dev->usb_buf[0] = 1;
360 gspca_dev->usb_buf[1] = 0;
364 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
365 u8 *data, /* isoc packet */
366 int len) /* iso packet length */
368 struct sd *sd = (struct sd *) gspca_dev;
372 /* gspca_dev->last_packet_type = DISCARD_PACKET; */
375 for (p = 0; p < len - 6; p++) {
376 if (data[0 + p] == 0xff
377 && data[1 + p] == 0xff
378 && data[2 + p] == 0x00
379 && data[3 + p] == 0xff
380 && data[4 + p] == 0x96) {
381 if (data[5 + p] == 0x64
382 || data[5 + p] == 0x65
383 || data[5 + p] == 0x66
384 || data[5 + p] == 0x67) {
385 PDEBUG(D_PACK, "sof offset: %d len: %d",
387 gspca_frame_add(gspca_dev, LAST_PACKET,
390 /* put the JPEG header */
391 gspca_frame_add(gspca_dev, FIRST_PACKET,
392 sd->jpeg_hdr, JPEG_HDR_SZ);
399 gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
402 /* sub-driver description */
403 static const struct sd_desc sd_desc = {
407 .init_controls = sd_init_controls,
410 .pkt_scan = sd_pkt_scan,
413 /* -- module initialisation -- */
414 static const struct usb_device_id device_table[] = {
415 {USB_DEVICE(0x093a, 0x050f)},
418 MODULE_DEVICE_TABLE(usb, device_table);
420 /* -- device connect -- */
421 static int sd_probe(struct usb_interface *intf,
422 const struct usb_device_id *id)
424 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
428 static struct usb_driver sd_driver = {
430 .id_table = device_table,
432 .disconnect = gspca_disconnect,
434 .suspend = gspca_suspend,
435 .resume = gspca_resume,
436 .reset_resume = gspca_resume,
440 module_usb_driver(sd_driver);