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Diffstat (limited to 'drivers/media/usb/gspca/mars.c')
-rw-r--r--drivers/media/usb/gspca/mars.c439
1 files changed, 439 insertions, 0 deletions
diff --git a/drivers/media/usb/gspca/mars.c b/drivers/media/usb/gspca/mars.c
new file mode 100644
index 000000000000..ff2c5abf115b
--- /dev/null
+++ b/drivers/media/usb/gspca/mars.c
@@ -0,0 +1,439 @@
1/*
2 * Mars-Semi MR97311A library
3 * Copyright (C) 2005 <bradlch@hotmail.com>
4 *
5 * V4L2 by Jean-Francois Moine <http://moinejf.free.fr>
6 *
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
10 * any later version.
11 *
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.
16 *
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
20 */
21
22#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
23
24#define MODULE_NAME "mars"
25
26#include "gspca.h"
27#include "jpeg.h"
28
29MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
30MODULE_DESCRIPTION("GSPCA/Mars USB Camera Driver");
31MODULE_LICENSE("GPL");
32
33#define QUALITY 50
34
35/* specific webcam descriptor */
36struct sd {
37 struct gspca_dev gspca_dev; /* !! must be the first item */
38
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;
46 };
47 u8 jpeg_hdr[JPEG_HDR_SZ];
48};
49
50/* V4L2 controls supported by the driver */
51static void setbrightness(struct gspca_dev *gspca_dev, s32 val);
52static void setcolors(struct gspca_dev *gspca_dev, s32 val);
53static void setgamma(struct gspca_dev *gspca_dev, s32 val);
54static void setsharpness(struct gspca_dev *gspca_dev, s32 val);
55
56static const struct v4l2_pix_format vga_mode[] = {
57 {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
58 .bytesperline = 320,
59 .sizeimage = 320 * 240 * 3 / 8 + 590,
60 .colorspace = V4L2_COLORSPACE_JPEG,
61 .priv = 2},
62 {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
63 .bytesperline = 640,
64 .sizeimage = 640 * 480 * 3 / 8 + 590,
65 .colorspace = V4L2_COLORSPACE_JPEG,
66 .priv = 1},
67};
68
69static 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
78};
79
80/* write <len> bytes from gspca_dev->usb_buf */
81static void reg_w(struct gspca_dev *gspca_dev,
82 int len)
83{
84 int alen, ret;
85
86 if (gspca_dev->usb_err < 0)
87 return;
88
89 ret = usb_bulk_msg(gspca_dev->dev,
90 usb_sndbulkpipe(gspca_dev->dev, 4),
91 gspca_dev->usb_buf,
92 len,
93 &alen,
94 500); /* timeout in milliseconds */
95 if (ret < 0) {
96 pr_err("reg write [%02x] error %d\n",
97 gspca_dev->usb_buf[0], ret);
98 gspca_dev->usb_err = ret;
99 }
100}
101
102static void mi_w(struct gspca_dev *gspca_dev,
103 u8 addr,
104 u8 value)
105{
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;
110
111 reg_w(gspca_dev, 4);
112}
113
114static void setbrightness(struct gspca_dev *gspca_dev, s32 val)
115{
116 gspca_dev->usb_buf[0] = 0x61;
117 gspca_dev->usb_buf[1] = val;
118 reg_w(gspca_dev, 2);
119}
120
121static void setcolors(struct gspca_dev *gspca_dev, s32 val)
122{
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;
126 reg_w(gspca_dev, 3);
127}
128
129static void setgamma(struct gspca_dev *gspca_dev, s32 val)
130{
131 gspca_dev->usb_buf[0] = 0x06;
132 gspca_dev->usb_buf[1] = val * 0x40;
133 reg_w(gspca_dev, 2);
134}
135
136static void setsharpness(struct gspca_dev *gspca_dev, s32 val)
137{
138 gspca_dev->usb_buf[0] = 0x67;
139 gspca_dev->usb_buf[1] = val * 4 + 3;
140 reg_w(gspca_dev, 2);
141}
142
143static void setilluminators(struct gspca_dev *gspca_dev, bool top, bool bottom)
144{
145 /* both are off if not streaming */
146 gspca_dev->usb_buf[0] = 0x22;
147 if (top)
148 gspca_dev->usb_buf[1] = 0x76;
149 else if (bottom)
150 gspca_dev->usb_buf[1] = 0x7a;
151 else
152 gspca_dev->usb_buf[1] = 0x7e;
153 reg_w(gspca_dev, 2);
154}
155
156static int mars_s_ctrl(struct v4l2_ctrl *ctrl)
157{
158 struct gspca_dev *gspca_dev =
159 container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
160 struct sd *sd = (struct sd *)gspca_dev;
161
162 gspca_dev->usb_err = 0;
163
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;
170 }
171
172 if (!gspca_dev->streaming)
173 return 0;
174
175 switch (ctrl->id) {
176 case V4L2_CID_BRIGHTNESS:
177 setbrightness(gspca_dev, ctrl->val);
178 break;
179 case V4L2_CID_SATURATION:
180 setcolors(gspca_dev, ctrl->val);
181 break;
182 case V4L2_CID_GAMMA:
183 setgamma(gspca_dev, ctrl->val);
184 break;
185 case V4L2_CID_ILLUMINATORS_1:
186 setilluminators(gspca_dev, sd->illum_top->val,
187 sd->illum_bottom->val);
188 break;
189 case V4L2_CID_SHARPNESS:
190 setsharpness(gspca_dev, ctrl->val);
191 break;
192 default:
193 return -EINVAL;
194 }
195 return gspca_dev->usb_err;
196}
197
198static const struct v4l2_ctrl_ops mars_ctrl_ops = {
199 .s_ctrl = mars_s_ctrl,
200};
201
202/* this function is called at probe time */
203static int sd_init_controls(struct gspca_dev *gspca_dev)
204{
205 struct sd *sd = (struct sd *) gspca_dev;
206 struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;
207
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;
224 if (hdl->error) {
225 pr_err("Could not initialize controls\n");
226 return hdl->error;
227 }
228 v4l2_ctrl_cluster(2, &sd->illum_top);
229 return 0;
230}
231
232/* this function is called at probe time */
233static int sd_config(struct gspca_dev *gspca_dev,
234 const struct usb_device_id *id)
235{
236 struct cam *cam;
237
238 cam = &gspca_dev->cam;
239 cam->cam_mode = vga_mode;
240 cam->nmodes = ARRAY_SIZE(vga_mode);
241 return 0;
242}
243
244/* this function is called at probe and resume time */
245static int sd_init(struct gspca_dev *gspca_dev)
246{
247 return 0;
248}
249
250static int sd_start(struct gspca_dev *gspca_dev)
251{
252 struct sd *sd = (struct sd *) gspca_dev;
253 u8 *data;
254 int i;
255
256 /* create the JPEG header */
257 jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
258 0x21); /* JPEG 422 */
259 jpeg_set_qual(sd->jpeg_hdr, QUALITY);
260
261 data = gspca_dev->usb_buf;
262
263 data[0] = 0x01; /* address */
264 data[1] = 0x01;
265 reg_w(gspca_dev, 2);
266
267 /*
268 Initialize the MR97113 chip register
269 */
270 data[0] = 0x00; /* address */
271 data[1] = 0x0c | 0x01; /* reg 0 */
272 data[2] = 0x01; /* reg 1 */
273 data[3] = gspca_dev->width / 8; /* h_size , reg 2 */
274 data[4] = gspca_dev->height / 8; /* v_size , reg 3 */
275 data[5] = 0x30; /* reg 4, MI, PAS5101 :
276 * 0x30 for 24mhz , 0x28 for 12mhz */
277 data[6] = 0x02; /* reg 5, H start - was 0x04 */
278 data[7] = v4l2_ctrl_g_ctrl(sd->gamma) * 0x40; /* reg 0x06: gamma */
279 data[8] = 0x01; /* reg 7, V start - was 0x03 */
280/* if (h_size == 320 ) */
281/* data[9]= 0x56; * reg 8, 24MHz, 2:1 scale down */
282/* else */
283 data[9] = 0x52; /* reg 8, 24MHz, no scale down */
284/*jfm: from win trace*/
285 data[10] = 0x18;
286
287 reg_w(gspca_dev, 11);
288
289 data[0] = 0x23; /* address */
290 data[1] = 0x09; /* reg 35, append frame header */
291
292 reg_w(gspca_dev, 2);
293
294 data[0] = 0x3c; /* address */
295/* if (gspca_dev->width == 1280) */
296/* data[1] = 200; * reg 60, pc-cam frame size
297 * (unit: 4KB) 800KB */
298/* else */
299 data[1] = 50; /* 50 reg 60, pc-cam frame size
300 * (unit: 4KB) 200KB */
301 reg_w(gspca_dev, 2);
302
303 /* auto dark-gain */
304 data[0] = 0x5e; /* address */
305 data[1] = 0; /* reg 94, Y Gain (auto) */
306/*jfm: from win trace*/
307 /* reg 0x5f/0x60 (LE) = saturation */
308 /* h (60): xxxx x100
309 * l (5f): xxxx x000 */
310 data[2] = v4l2_ctrl_g_ctrl(sd->saturation) << 3;
311 data[3] = ((v4l2_ctrl_g_ctrl(sd->saturation) >> 2) & 0xf8) | 0x04;
312 data[4] = v4l2_ctrl_g_ctrl(sd->brightness); /* reg 0x61 = brightness */
313 data[5] = 0x00;
314
315 reg_w(gspca_dev, 6);
316
317 data[0] = 0x67;
318/*jfm: from win trace*/
319 data[1] = v4l2_ctrl_g_ctrl(sd->sharpness) * 4 + 3;
320 data[2] = 0x14;
321 reg_w(gspca_dev, 3);
322
323 data[0] = 0x69;
324 data[1] = 0x2f;
325 data[2] = 0x28;
326 data[3] = 0x42;
327 reg_w(gspca_dev, 4);
328
329 data[0] = 0x63;
330 data[1] = 0x07;
331 reg_w(gspca_dev, 2);
332/*jfm: win trace - many writes here to reg 0x64*/
333
334 /* initialize the MI sensor */
335 for (i = 0; i < sizeof mi_data; i++)
336 mi_w(gspca_dev, i + 1, mi_data[i]);
337
338 data[0] = 0x00;
339 data[1] = 0x4d; /* ISOC transferring enable... */
340 reg_w(gspca_dev, 2);
341
342 setilluminators(gspca_dev, v4l2_ctrl_g_ctrl(sd->illum_top),
343 v4l2_ctrl_g_ctrl(sd->illum_bottom));
344
345 return gspca_dev->usb_err;
346}
347
348static void sd_stopN(struct gspca_dev *gspca_dev)
349{
350 struct sd *sd = (struct sd *) gspca_dev;
351
352 if (v4l2_ctrl_g_ctrl(sd->illum_top) ||
353 v4l2_ctrl_g_ctrl(sd->illum_bottom)) {
354 setilluminators(gspca_dev, false, false);
355 msleep(20);
356 }
357
358 gspca_dev->usb_buf[0] = 1;
359 gspca_dev->usb_buf[1] = 0;
360 reg_w(gspca_dev, 2);
361}
362
363static void sd_pkt_scan(struct gspca_dev *gspca_dev,
364 u8 *data, /* isoc packet */
365 int len) /* iso packet length */
366{
367 struct sd *sd = (struct sd *) gspca_dev;
368 int p;
369
370 if (len < 6) {
371/* gspca_dev->last_packet_type = DISCARD_PACKET; */
372 return;
373 }
374 for (p = 0; p < len - 6; p++) {
375 if (data[0 + p] == 0xff
376 && data[1 + p] == 0xff
377 && data[2 + p] == 0x00
378 && data[3 + p] == 0xff
379 && data[4 + p] == 0x96) {
380 if (data[5 + p] == 0x64
381 || data[5 + p] == 0x65
382 || data[5 + p] == 0x66
383 || data[5 + p] == 0x67) {
384 PDEBUG(D_PACK, "sof offset: %d len: %d",
385 p, len);
386 gspca_frame_add(gspca_dev, LAST_PACKET,
387 data, p);
388
389 /* put the JPEG header */
390 gspca_frame_add(gspca_dev, FIRST_PACKET,
391 sd->jpeg_hdr, JPEG_HDR_SZ);
392 data += p + 16;
393 len -= p + 16;
394 break;
395 }
396 }
397 }
398 gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
399}
400
401/* sub-driver description */
402static const struct sd_desc sd_desc = {
403 .name = MODULE_NAME,
404 .config = sd_config,
405 .init = sd_init,
406 .init_controls = sd_init_controls,
407 .start = sd_start,
408 .stopN = sd_stopN,
409 .pkt_scan = sd_pkt_scan,
410};
411
412/* -- module initialisation -- */
413static const struct usb_device_id device_table[] = {
414 {USB_DEVICE(0x093a, 0x050f)},
415 {}
416};
417MODULE_DEVICE_TABLE(usb, device_table);
418
419/* -- device connect -- */
420static int sd_probe(struct usb_interface *intf,
421 const struct usb_device_id *id)
422{
423 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
424 THIS_MODULE);
425}
426
427static struct usb_driver sd_driver = {
428 .name = MODULE_NAME,
429 .id_table = device_table,
430 .probe = sd_probe,
431 .disconnect = gspca_disconnect,
432#ifdef CONFIG_PM
433 .suspend = gspca_suspend,
434 .resume = gspca_resume,
435 .reset_resume = gspca_resume,
436#endif
437};
438
439module_usb_driver(sd_driver);
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