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34#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
35
36#include "stv06xx_pb0100.h"
37
38struct pb0100_ctrls {
39 struct {
40 struct v4l2_ctrl *autogain;
41 struct v4l2_ctrl *gain;
42 struct v4l2_ctrl *exposure;
43 struct v4l2_ctrl *red;
44 struct v4l2_ctrl *blue;
45 struct v4l2_ctrl *natural;
46 };
47 struct v4l2_ctrl *target;
48};
49
50static struct v4l2_pix_format pb0100_mode[] = {
51
52
53 {
54 320,
55 240,
56 V4L2_PIX_FMT_SGRBG8,
57 V4L2_FIELD_NONE,
58 .sizeimage = 320 * 240,
59 .bytesperline = 320,
60 .colorspace = V4L2_COLORSPACE_SRGB,
61 .priv = PB0100_CROP_TO_VGA
62 },
63 {
64 352,
65 288,
66 V4L2_PIX_FMT_SGRBG8,
67 V4L2_FIELD_NONE,
68 .sizeimage = 352 * 288,
69 .bytesperline = 352,
70 .colorspace = V4L2_COLORSPACE_SRGB,
71 .priv = 0
72 }
73};
74
75static int pb0100_s_ctrl(struct v4l2_ctrl *ctrl)
76{
77 struct gspca_dev *gspca_dev =
78 container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
79 struct sd *sd = (struct sd *)gspca_dev;
80 struct pb0100_ctrls *ctrls = sd->sensor_priv;
81 int err = -EINVAL;
82
83 switch (ctrl->id) {
84 case V4L2_CID_AUTOGAIN:
85 err = pb0100_set_autogain(gspca_dev, ctrl->val);
86 if (err)
87 break;
88 if (ctrl->val)
89 break;
90 err = pb0100_set_gain(gspca_dev, ctrls->gain->val);
91 if (err)
92 break;
93 err = pb0100_set_exposure(gspca_dev, ctrls->exposure->val);
94 break;
95 case V4L2_CTRL_CLASS_USER + 0x1001:
96 err = pb0100_set_autogain_target(gspca_dev, ctrl->val);
97 break;
98 }
99 return err;
100}
101
102static const struct v4l2_ctrl_ops pb0100_ctrl_ops = {
103 .s_ctrl = pb0100_s_ctrl,
104};
105
106static int pb0100_init_controls(struct sd *sd)
107{
108 struct v4l2_ctrl_handler *hdl = &sd->gspca_dev.ctrl_handler;
109 struct pb0100_ctrls *ctrls;
110 static const struct v4l2_ctrl_config autogain_target = {
111 .ops = &pb0100_ctrl_ops,
112 .id = V4L2_CTRL_CLASS_USER + 0x1000,
113 .type = V4L2_CTRL_TYPE_INTEGER,
114 .name = "Automatic Gain Target",
115 .max = 255,
116 .step = 1,
117 .def = 128,
118 };
119 static const struct v4l2_ctrl_config natural_light = {
120 .ops = &pb0100_ctrl_ops,
121 .id = V4L2_CTRL_CLASS_USER + 0x1001,
122 .type = V4L2_CTRL_TYPE_BOOLEAN,
123 .name = "Natural Light Source",
124 .max = 1,
125 .step = 1,
126 .def = 1,
127 };
128
129 ctrls = kzalloc(sizeof(*ctrls), GFP_KERNEL);
130 if (!ctrls)
131 return -ENOMEM;
132
133 v4l2_ctrl_handler_init(hdl, 6);
134 ctrls->autogain = v4l2_ctrl_new_std(hdl, &pb0100_ctrl_ops,
135 V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
136 ctrls->exposure = v4l2_ctrl_new_std(hdl, &pb0100_ctrl_ops,
137 V4L2_CID_EXPOSURE, 0, 511, 1, 12);
138 ctrls->gain = v4l2_ctrl_new_std(hdl, &pb0100_ctrl_ops,
139 V4L2_CID_GAIN, 0, 255, 1, 128);
140 ctrls->red = v4l2_ctrl_new_std(hdl, &pb0100_ctrl_ops,
141 V4L2_CID_RED_BALANCE, -255, 255, 1, 0);
142 ctrls->blue = v4l2_ctrl_new_std(hdl, &pb0100_ctrl_ops,
143 V4L2_CID_BLUE_BALANCE, -255, 255, 1, 0);
144 ctrls->natural = v4l2_ctrl_new_custom(hdl, &natural_light, NULL);
145 ctrls->target = v4l2_ctrl_new_custom(hdl, &autogain_target, NULL);
146 if (hdl->error) {
147 kfree(ctrls);
148 return hdl->error;
149 }
150 sd->sensor_priv = ctrls;
151 v4l2_ctrl_auto_cluster(5, &ctrls->autogain, 0, false);
152 return 0;
153}
154
155static int pb0100_probe(struct sd *sd)
156{
157 u16 sensor;
158 int err;
159
160 err = stv06xx_read_sensor(sd, PB_IDENT, &sensor);
161
162 if (err < 0)
163 return -ENODEV;
164 if ((sensor >> 8) != 0x64)
165 return -ENODEV;
166
167 pr_info("Photobit pb0100 sensor detected\n");
168
169 sd->gspca_dev.cam.cam_mode = pb0100_mode;
170 sd->gspca_dev.cam.nmodes = ARRAY_SIZE(pb0100_mode);
171
172 return 0;
173}
174
175static int pb0100_start(struct sd *sd)
176{
177 int err, packet_size, max_packet_size;
178 struct usb_host_interface *alt;
179 struct usb_interface *intf;
180 struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
181 struct cam *cam = &sd->gspca_dev.cam;
182 u32 mode = cam->cam_mode[sd->gspca_dev.curr_mode].priv;
183
184 intf = usb_ifnum_to_if(sd->gspca_dev.dev, sd->gspca_dev.iface);
185 alt = usb_altnum_to_altsetting(intf, sd->gspca_dev.alt);
186 if (!alt)
187 return -ENODEV;
188 packet_size = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize);
189
190
191 max_packet_size = sd->sensor->max_packet_size[sd->gspca_dev.curr_mode];
192 if (packet_size < max_packet_size)
193 stv06xx_write_sensor(sd, PB_ROWSPEED, BIT(4)|BIT(3)|BIT(1));
194 else
195 stv06xx_write_sensor(sd, PB_ROWSPEED, BIT(5)|BIT(3)|BIT(1));
196
197
198 if (mode & PB0100_CROP_TO_VGA) {
199 stv06xx_write_sensor(sd, PB_RSTART, 30);
200 stv06xx_write_sensor(sd, PB_CSTART, 20);
201 stv06xx_write_sensor(sd, PB_RWSIZE, 240 - 1);
202 stv06xx_write_sensor(sd, PB_CWSIZE, 320 - 1);
203 } else {
204 stv06xx_write_sensor(sd, PB_RSTART, 8);
205 stv06xx_write_sensor(sd, PB_CSTART, 4);
206 stv06xx_write_sensor(sd, PB_RWSIZE, 288 - 1);
207 stv06xx_write_sensor(sd, PB_CWSIZE, 352 - 1);
208 }
209
210 if (mode & PB0100_SUBSAMPLE) {
211 stv06xx_write_bridge(sd, STV_Y_CTRL, 0x02);
212 stv06xx_write_bridge(sd, STV_X_CTRL, 0x06);
213
214 stv06xx_write_bridge(sd, STV_SCAN_RATE, 0x10);
215 } else {
216 stv06xx_write_bridge(sd, STV_Y_CTRL, 0x01);
217 stv06xx_write_bridge(sd, STV_X_CTRL, 0x0a);
218
219 stv06xx_write_bridge(sd, STV_SCAN_RATE, 0x20);
220 }
221
222 err = stv06xx_write_sensor(sd, PB_CONTROL, BIT(5)|BIT(3)|BIT(1));
223 gspca_dbg(gspca_dev, D_STREAM, "Started stream, status: %d\n", err);
224
225 return (err < 0) ? err : 0;
226}
227
228static int pb0100_stop(struct sd *sd)
229{
230 struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
231 int err;
232
233 err = stv06xx_write_sensor(sd, PB_ABORTFRAME, 1);
234
235 if (err < 0)
236 goto out;
237
238
239 err = stv06xx_write_sensor(sd, PB_CONTROL, BIT(5)|BIT(3));
240
241 gspca_dbg(gspca_dev, D_STREAM, "Halting stream\n");
242out:
243 return (err < 0) ? err : 0;
244}
245
246
247
248
249
250static int pb0100_init(struct sd *sd)
251{
252 stv06xx_write_bridge(sd, STV_REG00, 1);
253 stv06xx_write_bridge(sd, STV_SCAN_RATE, 0);
254
255
256 stv06xx_write_sensor(sd, PB_RESET, 1);
257 stv06xx_write_sensor(sd, PB_RESET, 0);
258
259
260 stv06xx_write_sensor(sd, PB_CONTROL, BIT(5)|BIT(3));
261
262
263 stv06xx_write_sensor(sd, PB_PREADCTRL, BIT(12)|BIT(10)|BIT(6));
264 stv06xx_write_sensor(sd, PB_ADCGLOBALGAIN, 12);
265
266
267
268
269 stv06xx_write_sensor(sd, PB_R28, 12);
270
271 stv06xx_write_sensor(sd, PB_ADCMAXGAIN, 180);
272
273 stv06xx_write_sensor(sd, PB_ADCMINGAIN, 12);
274
275
276 stv06xx_write_sensor(sd, PB_R54, 3);
277
278
279 stv06xx_write_sensor(sd, PB_R55, 0);
280 stv06xx_write_sensor(sd, PB_UPDATEINT, 1);
281
282 stv06xx_write_sensor(sd, PB_R15, 800);
283
284 stv06xx_write_sensor(sd, PB_R17, 10);
285
286 stv06xx_write_sensor(sd, PB_EXPGAIN, 0);
287
288
289 stv06xx_write_sensor(sd, PB_VOFFSET, 0);
290
291 stv06xx_write_sensor(sd, PB_ADCGAINH, 11);
292
293 stv06xx_write_sensor(sd, PB_ADCGAINL, 0);
294
295
296 stv06xx_write_bridge(sd, STV_REG00, 0x11);
297 stv06xx_write_bridge(sd, STV_REG03, 0x45);
298 stv06xx_write_bridge(sd, STV_REG04, 0x07);
299
300
301 stv06xx_write_sensor(sd, PB_ROWSPEED, BIT(4)|BIT(3)|BIT(1));
302 stv06xx_write_sensor(sd, PB_CFILLIN, 14);
303 stv06xx_write_sensor(sd, PB_VBL, 0);
304 stv06xx_write_sensor(sd, PB_FINTTIME, 0);
305 stv06xx_write_sensor(sd, PB_RINTTIME, 123);
306
307 stv06xx_write_bridge(sd, STV_REG01, 0xc2);
308 stv06xx_write_bridge(sd, STV_REG02, 0xb0);
309 return 0;
310}
311
312static int pb0100_dump(struct sd *sd)
313{
314 return 0;
315}
316
317static int pb0100_set_gain(struct gspca_dev *gspca_dev, __s32 val)
318{
319 int err;
320 struct sd *sd = (struct sd *) gspca_dev;
321 struct pb0100_ctrls *ctrls = sd->sensor_priv;
322
323 err = stv06xx_write_sensor(sd, PB_G1GAIN, val);
324 if (!err)
325 err = stv06xx_write_sensor(sd, PB_G2GAIN, val);
326 gspca_dbg(gspca_dev, D_CONF, "Set green gain to %d, status: %d\n",
327 val, err);
328
329 if (!err)
330 err = pb0100_set_red_balance(gspca_dev, ctrls->red->val);
331 if (!err)
332 err = pb0100_set_blue_balance(gspca_dev, ctrls->blue->val);
333
334 return err;
335}
336
337static int pb0100_set_red_balance(struct gspca_dev *gspca_dev, __s32 val)
338{
339 int err;
340 struct sd *sd = (struct sd *) gspca_dev;
341 struct pb0100_ctrls *ctrls = sd->sensor_priv;
342
343 val += ctrls->gain->val;
344 if (val < 0)
345 val = 0;
346 else if (val > 255)
347 val = 255;
348
349 err = stv06xx_write_sensor(sd, PB_RGAIN, val);
350 gspca_dbg(gspca_dev, D_CONF, "Set red gain to %d, status: %d\n",
351 val, err);
352
353 return err;
354}
355
356static int pb0100_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val)
357{
358 int err;
359 struct sd *sd = (struct sd *) gspca_dev;
360 struct pb0100_ctrls *ctrls = sd->sensor_priv;
361
362 val += ctrls->gain->val;
363 if (val < 0)
364 val = 0;
365 else if (val > 255)
366 val = 255;
367
368 err = stv06xx_write_sensor(sd, PB_BGAIN, val);
369 gspca_dbg(gspca_dev, D_CONF, "Set blue gain to %d, status: %d\n",
370 val, err);
371
372 return err;
373}
374
375static int pb0100_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
376{
377 struct sd *sd = (struct sd *) gspca_dev;
378 int err;
379
380 err = stv06xx_write_sensor(sd, PB_RINTTIME, val);
381 gspca_dbg(gspca_dev, D_CONF, "Set exposure to %d, status: %d\n",
382 val, err);
383
384 return err;
385}
386
387static int pb0100_set_autogain(struct gspca_dev *gspca_dev, __s32 val)
388{
389 int err;
390 struct sd *sd = (struct sd *) gspca_dev;
391 struct pb0100_ctrls *ctrls = sd->sensor_priv;
392
393 if (val) {
394 if (ctrls->natural->val)
395 val = BIT(6)|BIT(4)|BIT(0);
396 else
397 val = BIT(4)|BIT(0);
398 } else
399 val = 0;
400
401 err = stv06xx_write_sensor(sd, PB_EXPGAIN, val);
402 gspca_dbg(gspca_dev, D_CONF, "Set autogain to %d (natural: %d), status: %d\n",
403 val, ctrls->natural->val, err);
404
405 return err;
406}
407
408static int pb0100_set_autogain_target(struct gspca_dev *gspca_dev, __s32 val)
409{
410 int err, totalpixels, brightpixels, darkpixels;
411 struct sd *sd = (struct sd *) gspca_dev;
412
413
414
415 totalpixels = gspca_dev->pixfmt.width * gspca_dev->pixfmt.height;
416 totalpixels = totalpixels/(8*8) + totalpixels/(64*64);
417
418 brightpixels = (totalpixels * val) >> 8;
419 darkpixels = totalpixels - brightpixels;
420 err = stv06xx_write_sensor(sd, PB_R21, brightpixels);
421 if (!err)
422 err = stv06xx_write_sensor(sd, PB_R22, darkpixels);
423
424 gspca_dbg(gspca_dev, D_CONF, "Set autogain target to %d, status: %d\n",
425 val, err);
426
427 return err;
428}
429