1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * Sunplus spca561 subdriver |
4 | * |
5 | * Copyright (C) 2004 Michel Xhaard mxhaard@magic.fr |
6 | * |
7 | * V4L2 by Jean-Francois Moine <http://moinejf.free.fr> |
8 | */ |
9 | |
10 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
11 | |
12 | #define MODULE_NAME "spca561" |
13 | |
14 | #include <linux/input.h> |
15 | #include "gspca.h" |
16 | |
17 | MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>" ); |
18 | MODULE_DESCRIPTION("GSPCA/SPCA561 USB Camera Driver" ); |
19 | MODULE_LICENSE("GPL" ); |
20 | |
21 | #define EXPOSURE_MAX (2047 + 325) |
22 | |
23 | /* specific webcam descriptor */ |
24 | struct sd { |
25 | struct gspca_dev gspca_dev; /* !! must be the first item */ |
26 | |
27 | struct { /* hue/contrast control cluster */ |
28 | struct v4l2_ctrl *contrast; |
29 | struct v4l2_ctrl *hue; |
30 | }; |
31 | struct v4l2_ctrl *autogain; |
32 | |
33 | #define EXPO12A_DEF 3 |
34 | __u8 expo12a; /* expo/gain? for rev 12a */ |
35 | |
36 | __u8 chip_revision; |
37 | #define Rev012A 0 |
38 | #define Rev072A 1 |
39 | |
40 | signed char ag_cnt; |
41 | #define AG_CNT_START 13 |
42 | }; |
43 | |
44 | static const struct v4l2_pix_format sif_012a_mode[] = { |
45 | {160, 120, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE, |
46 | .bytesperline = 160, |
47 | .sizeimage = 160 * 120, |
48 | .colorspace = V4L2_COLORSPACE_SRGB, |
49 | .priv = 3}, |
50 | {176, 144, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE, |
51 | .bytesperline = 176, |
52 | .sizeimage = 176 * 144, |
53 | .colorspace = V4L2_COLORSPACE_SRGB, |
54 | .priv = 2}, |
55 | {320, 240, V4L2_PIX_FMT_SPCA561, V4L2_FIELD_NONE, |
56 | .bytesperline = 320, |
57 | .sizeimage = 320 * 240 * 4 / 8, |
58 | .colorspace = V4L2_COLORSPACE_SRGB, |
59 | .priv = 1}, |
60 | {352, 288, V4L2_PIX_FMT_SPCA561, V4L2_FIELD_NONE, |
61 | .bytesperline = 352, |
62 | .sizeimage = 352 * 288 * 4 / 8, |
63 | .colorspace = V4L2_COLORSPACE_SRGB, |
64 | .priv = 0}, |
65 | }; |
66 | |
67 | static const struct v4l2_pix_format sif_072a_mode[] = { |
68 | {160, 120, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE, |
69 | .bytesperline = 160, |
70 | .sizeimage = 160 * 120, |
71 | .colorspace = V4L2_COLORSPACE_SRGB, |
72 | .priv = 3}, |
73 | {176, 144, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE, |
74 | .bytesperline = 176, |
75 | .sizeimage = 176 * 144, |
76 | .colorspace = V4L2_COLORSPACE_SRGB, |
77 | .priv = 2}, |
78 | {320, 240, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE, |
79 | .bytesperline = 320, |
80 | .sizeimage = 320 * 240, |
81 | .colorspace = V4L2_COLORSPACE_SRGB, |
82 | .priv = 1}, |
83 | {352, 288, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE, |
84 | .bytesperline = 352, |
85 | .sizeimage = 352 * 288, |
86 | .colorspace = V4L2_COLORSPACE_SRGB, |
87 | .priv = 0}, |
88 | }; |
89 | |
90 | /* |
91 | * Initialization data |
92 | * I'm not very sure how to split initialization from open data |
93 | * chunks. For now, we'll consider everything as initialization |
94 | */ |
95 | /* Frame packet header offsets for the spca561 */ |
96 | #define SPCA561_OFFSET_SNAP 1 |
97 | #define SPCA561_OFFSET_TYPE 2 |
98 | #define SPCA561_OFFSET_COMPRESS 3 |
99 | #define SPCA561_OFFSET_FRAMSEQ 4 |
100 | #define SPCA561_OFFSET_GPIO 5 |
101 | #define SPCA561_OFFSET_USBBUFF 6 |
102 | #define SPCA561_OFFSET_WIN2GRAVE 7 |
103 | #define SPCA561_OFFSET_WIN2RAVE 8 |
104 | #define SPCA561_OFFSET_WIN2BAVE 9 |
105 | #define SPCA561_OFFSET_WIN2GBAVE 10 |
106 | #define SPCA561_OFFSET_WIN1GRAVE 11 |
107 | #define SPCA561_OFFSET_WIN1RAVE 12 |
108 | #define SPCA561_OFFSET_WIN1BAVE 13 |
109 | #define SPCA561_OFFSET_WIN1GBAVE 14 |
110 | #define SPCA561_OFFSET_FREQ 15 |
111 | #define SPCA561_OFFSET_VSYNC 16 |
112 | #define SPCA561_INDEX_I2C_BASE 0x8800 |
113 | #define SPCA561_SNAPBIT 0x20 |
114 | #define SPCA561_SNAPCTRL 0x40 |
115 | |
116 | static const u16 rev72a_reset[][2] = { |
117 | {0x0000, 0x8114}, /* Software GPIO output data */ |
118 | {0x0001, 0x8114}, /* Software GPIO output data */ |
119 | {0x0000, 0x8112}, /* Some kind of reset */ |
120 | {} |
121 | }; |
122 | static const __u16 rev72a_init_data1[][2] = { |
123 | {0x0003, 0x8701}, /* PCLK clock delay adjustment */ |
124 | {0x0001, 0x8703}, /* HSYNC from cmos inverted */ |
125 | {0x0011, 0x8118}, /* Enable and conf sensor */ |
126 | {0x0001, 0x8118}, /* Conf sensor */ |
127 | {0x0092, 0x8804}, /* I know nothing about these */ |
128 | {0x0010, 0x8802}, /* 0x88xx registers, so I won't */ |
129 | {} |
130 | }; |
131 | static const u16 rev72a_init_sensor1[][2] = { |
132 | {0x0001, 0x000d}, |
133 | {0x0002, 0x0018}, |
134 | {0x0004, 0x0165}, |
135 | {0x0005, 0x0021}, |
136 | {0x0007, 0x00aa}, |
137 | {0x0020, 0x1504}, |
138 | {0x0039, 0x0002}, |
139 | {0x0035, 0x0010}, |
140 | {0x0009, 0x1049}, |
141 | {0x0028, 0x000b}, |
142 | {0x003b, 0x000f}, |
143 | {0x003c, 0x0000}, |
144 | {} |
145 | }; |
146 | static const __u16 rev72a_init_data2[][2] = { |
147 | {0x0018, 0x8601}, /* Pixel/line selection for color separation */ |
148 | {0x0000, 0x8602}, /* Optical black level for user setting */ |
149 | {0x0060, 0x8604}, /* Optical black horizontal offset */ |
150 | {0x0002, 0x8605}, /* Optical black vertical offset */ |
151 | {0x0000, 0x8603}, /* Non-automatic optical black level */ |
152 | {0x0002, 0x865b}, /* Horizontal offset for valid pixels */ |
153 | {0x0000, 0x865f}, /* Vertical valid pixels window (x2) */ |
154 | {0x00b0, 0x865d}, /* Horizontal valid pixels window (x2) */ |
155 | {0x0090, 0x865e}, /* Vertical valid lines window (x2) */ |
156 | {0x00e0, 0x8406}, /* Memory buffer threshold */ |
157 | {0x0000, 0x8660}, /* Compensation memory stuff */ |
158 | {0x0002, 0x8201}, /* Output address for r/w serial EEPROM */ |
159 | {0x0008, 0x8200}, /* Clear valid bit for serial EEPROM */ |
160 | {0x0001, 0x8200}, /* OprMode to be executed by hardware */ |
161 | /* from ms-win */ |
162 | {0x0000, 0x8611}, /* R offset for white balance */ |
163 | {0x00fd, 0x8612}, /* Gr offset for white balance */ |
164 | {0x0003, 0x8613}, /* B offset for white balance */ |
165 | {0x0000, 0x8614}, /* Gb offset for white balance */ |
166 | /* from ms-win */ |
167 | {0x0035, 0x8651}, /* R gain for white balance */ |
168 | {0x0040, 0x8652}, /* Gr gain for white balance */ |
169 | {0x005f, 0x8653}, /* B gain for white balance */ |
170 | {0x0040, 0x8654}, /* Gb gain for white balance */ |
171 | {0x0002, 0x8502}, /* Maximum average bit rate stuff */ |
172 | {0x0011, 0x8802}, |
173 | |
174 | {0x0087, 0x8700}, /* Set master clock (96Mhz????) */ |
175 | {0x0081, 0x8702}, /* Master clock output enable */ |
176 | |
177 | {0x0000, 0x8500}, /* Set image type (352x288 no compression) */ |
178 | /* Originally was 0x0010 (352x288 compression) */ |
179 | |
180 | {0x0002, 0x865b}, /* Horizontal offset for valid pixels */ |
181 | {0x0003, 0x865c}, /* Vertical offset for valid lines */ |
182 | {} |
183 | }; |
184 | static const u16 rev72a_init_sensor2[][2] = { |
185 | {0x0003, 0x0121}, |
186 | {0x0004, 0x0165}, |
187 | {0x0005, 0x002f}, /* blanking control column */ |
188 | {0x0006, 0x0000}, /* blanking mode row*/ |
189 | {0x000a, 0x0002}, |
190 | {0x0009, 0x1061}, /* setexposure times && pixel clock |
191 | * 0001 0 | 000 0110 0001 */ |
192 | {0x0035, 0x0014}, |
193 | {} |
194 | }; |
195 | |
196 | /******************** QC Express etch2 stuff ********************/ |
197 | static const __u16 Pb100_1map8300[][2] = { |
198 | /* reg, value */ |
199 | {0x8320, 0x3304}, |
200 | |
201 | {0x8303, 0x0125}, /* image area */ |
202 | {0x8304, 0x0169}, |
203 | {0x8328, 0x000b}, |
204 | {0x833c, 0x0001}, /*fixme: win:07*/ |
205 | |
206 | {0x832f, 0x1904}, /*fixme: was 0419*/ |
207 | {0x8307, 0x00aa}, |
208 | {0x8301, 0x0003}, |
209 | {0x8302, 0x000e}, |
210 | {} |
211 | }; |
212 | static const __u16 Pb100_2map8300[][2] = { |
213 | /* reg, value */ |
214 | {0x8339, 0x0000}, |
215 | {0x8307, 0x00aa}, |
216 | {} |
217 | }; |
218 | |
219 | static const __u16 spca561_161rev12A_data1[][2] = { |
220 | {0x29, 0x8118}, /* Control register (various enable bits) */ |
221 | {0x08, 0x8114}, /* GPIO: Led off */ |
222 | {0x0e, 0x8112}, /* 0x0e stream off 0x3e stream on */ |
223 | {0x00, 0x8102}, /* white balance - new */ |
224 | {0x92, 0x8804}, |
225 | {0x04, 0x8802}, /* windows uses 08 */ |
226 | {} |
227 | }; |
228 | static const __u16 spca561_161rev12A_data2[][2] = { |
229 | {0x21, 0x8118}, |
230 | {0x10, 0x8500}, |
231 | {0x07, 0x8601}, |
232 | {0x07, 0x8602}, |
233 | {0x04, 0x8501}, |
234 | |
235 | {0x07, 0x8201}, /* windows uses 02 */ |
236 | {0x08, 0x8200}, |
237 | {0x01, 0x8200}, |
238 | |
239 | {0x90, 0x8604}, |
240 | {0x00, 0x8605}, |
241 | {0xb0, 0x8603}, |
242 | |
243 | /* sensor gains */ |
244 | {0x07, 0x8601}, /* white balance - new */ |
245 | {0x07, 0x8602}, /* white balance - new */ |
246 | {0x00, 0x8610}, /* *red */ |
247 | {0x00, 0x8611}, /* 3f *green */ |
248 | {0x00, 0x8612}, /* green *blue */ |
249 | {0x00, 0x8613}, /* blue *green */ |
250 | {0x43, 0x8614}, /* green *red - white balance - was 0x35 */ |
251 | {0x40, 0x8615}, /* 40 *green - white balance - was 0x35 */ |
252 | {0x71, 0x8616}, /* 7a *blue - white balance - was 0x35 */ |
253 | {0x40, 0x8617}, /* 40 *green - white balance - was 0x35 */ |
254 | |
255 | {0x0c, 0x8620}, /* 0c */ |
256 | {0xc8, 0x8631}, /* c8 */ |
257 | {0xc8, 0x8634}, /* c8 */ |
258 | {0x23, 0x8635}, /* 23 */ |
259 | {0x1f, 0x8636}, /* 1f */ |
260 | {0xdd, 0x8637}, /* dd */ |
261 | {0xe1, 0x8638}, /* e1 */ |
262 | {0x1d, 0x8639}, /* 1d */ |
263 | {0x21, 0x863a}, /* 21 */ |
264 | {0xe3, 0x863b}, /* e3 */ |
265 | {0xdf, 0x863c}, /* df */ |
266 | {0xf0, 0x8505}, |
267 | {0x32, 0x850a}, |
268 | /* {0x99, 0x8700}, * - white balance - new (removed) */ |
269 | /* HDG we used to do this in stop0, making the init state and the state |
270 | after a start / stop different, so do this here instead. */ |
271 | {0x29, 0x8118}, |
272 | {} |
273 | }; |
274 | |
275 | static void reg_w_val(struct gspca_dev *gspca_dev, __u16 index, __u8 value) |
276 | { |
277 | int ret; |
278 | struct usb_device *dev = gspca_dev->dev; |
279 | |
280 | ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
281 | request: 0, /* request */ |
282 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, |
283 | value, index, NULL, size: 0, timeout: 500); |
284 | gspca_dbg(gspca_dev, D_USBO, "reg write: 0x%02x:0x%02x\n" , |
285 | index, value); |
286 | if (ret < 0) |
287 | pr_err("reg write: error %d\n" , ret); |
288 | } |
289 | |
290 | static void write_vector(struct gspca_dev *gspca_dev, |
291 | const __u16 data[][2]) |
292 | { |
293 | int i; |
294 | |
295 | i = 0; |
296 | while (data[i][1] != 0) { |
297 | reg_w_val(gspca_dev, index: data[i][1], value: data[i][0]); |
298 | i++; |
299 | } |
300 | } |
301 | |
302 | /* read 'len' bytes to gspca_dev->usb_buf */ |
303 | static void reg_r(struct gspca_dev *gspca_dev, |
304 | __u16 index, __u16 length) |
305 | { |
306 | usb_control_msg(dev: gspca_dev->dev, |
307 | usb_rcvctrlpipe(gspca_dev->dev, 0), |
308 | request: 0, /* request */ |
309 | USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, |
310 | value: 0, /* value */ |
311 | index, data: gspca_dev->usb_buf, size: length, timeout: 500); |
312 | } |
313 | |
314 | /* write 'len' bytes from gspca_dev->usb_buf */ |
315 | static void reg_w_buf(struct gspca_dev *gspca_dev, |
316 | __u16 index, __u16 len) |
317 | { |
318 | usb_control_msg(dev: gspca_dev->dev, |
319 | usb_sndctrlpipe(gspca_dev->dev, 0), |
320 | request: 0, /* request */ |
321 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, |
322 | value: 0, /* value */ |
323 | index, data: gspca_dev->usb_buf, size: len, timeout: 500); |
324 | } |
325 | |
326 | static void i2c_write(struct gspca_dev *gspca_dev, __u16 value, __u16 reg) |
327 | { |
328 | int retry = 60; |
329 | |
330 | reg_w_val(gspca_dev, index: 0x8801, value: reg); |
331 | reg_w_val(gspca_dev, index: 0x8805, value); |
332 | reg_w_val(gspca_dev, index: 0x8800, value: value >> 8); |
333 | do { |
334 | reg_r(gspca_dev, index: 0x8803, length: 1); |
335 | if (!gspca_dev->usb_buf[0]) |
336 | return; |
337 | msleep(msecs: 10); |
338 | } while (--retry); |
339 | } |
340 | |
341 | static int i2c_read(struct gspca_dev *gspca_dev, __u16 reg, __u8 mode) |
342 | { |
343 | int retry = 60; |
344 | __u8 value; |
345 | |
346 | reg_w_val(gspca_dev, index: 0x8804, value: 0x92); |
347 | reg_w_val(gspca_dev, index: 0x8801, value: reg); |
348 | reg_w_val(gspca_dev, index: 0x8802, value: mode | 0x01); |
349 | do { |
350 | reg_r(gspca_dev, index: 0x8803, length: 1); |
351 | if (!gspca_dev->usb_buf[0]) { |
352 | reg_r(gspca_dev, index: 0x8800, length: 1); |
353 | value = gspca_dev->usb_buf[0]; |
354 | reg_r(gspca_dev, index: 0x8805, length: 1); |
355 | return ((int) value << 8) | gspca_dev->usb_buf[0]; |
356 | } |
357 | msleep(msecs: 10); |
358 | } while (--retry); |
359 | return -1; |
360 | } |
361 | |
362 | static void sensor_mapwrite(struct gspca_dev *gspca_dev, |
363 | const __u16 (*sensormap)[2]) |
364 | { |
365 | while ((*sensormap)[0]) { |
366 | gspca_dev->usb_buf[0] = (*sensormap)[1]; |
367 | gspca_dev->usb_buf[1] = (*sensormap)[1] >> 8; |
368 | reg_w_buf(gspca_dev, index: (*sensormap)[0], len: 2); |
369 | sensormap++; |
370 | } |
371 | } |
372 | |
373 | static void write_sensor_72a(struct gspca_dev *gspca_dev, |
374 | const __u16 (*sensor)[2]) |
375 | { |
376 | while ((*sensor)[0]) { |
377 | i2c_write(gspca_dev, value: (*sensor)[1], reg: (*sensor)[0]); |
378 | sensor++; |
379 | } |
380 | } |
381 | |
382 | static void init_161rev12A(struct gspca_dev *gspca_dev) |
383 | { |
384 | write_vector(gspca_dev, data: spca561_161rev12A_data1); |
385 | sensor_mapwrite(gspca_dev, sensormap: Pb100_1map8300); |
386 | /*fixme: should be in sd_start*/ |
387 | write_vector(gspca_dev, data: spca561_161rev12A_data2); |
388 | sensor_mapwrite(gspca_dev, sensormap: Pb100_2map8300); |
389 | } |
390 | |
391 | /* this function is called at probe time */ |
392 | static int sd_config(struct gspca_dev *gspca_dev, |
393 | const struct usb_device_id *id) |
394 | { |
395 | struct sd *sd = (struct sd *) gspca_dev; |
396 | struct cam *cam; |
397 | __u16 vendor, product; |
398 | __u8 data1, data2; |
399 | |
400 | /* Read frm global register the USB product and vendor IDs, just to |
401 | * prove that we can communicate with the device. This works, which |
402 | * confirms at we are communicating properly and that the device |
403 | * is a 561. */ |
404 | reg_r(gspca_dev, index: 0x8104, length: 1); |
405 | data1 = gspca_dev->usb_buf[0]; |
406 | reg_r(gspca_dev, index: 0x8105, length: 1); |
407 | data2 = gspca_dev->usb_buf[0]; |
408 | vendor = (data2 << 8) | data1; |
409 | reg_r(gspca_dev, index: 0x8106, length: 1); |
410 | data1 = gspca_dev->usb_buf[0]; |
411 | reg_r(gspca_dev, index: 0x8107, length: 1); |
412 | data2 = gspca_dev->usb_buf[0]; |
413 | product = (data2 << 8) | data1; |
414 | if (vendor != id->idVendor || product != id->idProduct) { |
415 | gspca_dbg(gspca_dev, D_PROBE, "Bad vendor / product from device\n" ); |
416 | return -EINVAL; |
417 | } |
418 | |
419 | cam = &gspca_dev->cam; |
420 | cam->needs_full_bandwidth = 1; |
421 | |
422 | sd->chip_revision = id->driver_info; |
423 | if (sd->chip_revision == Rev012A) { |
424 | cam->cam_mode = sif_012a_mode; |
425 | cam->nmodes = ARRAY_SIZE(sif_012a_mode); |
426 | } else { |
427 | cam->cam_mode = sif_072a_mode; |
428 | cam->nmodes = ARRAY_SIZE(sif_072a_mode); |
429 | } |
430 | sd->expo12a = EXPO12A_DEF; |
431 | return 0; |
432 | } |
433 | |
434 | /* this function is called at probe and resume time */ |
435 | static int sd_init_12a(struct gspca_dev *gspca_dev) |
436 | { |
437 | gspca_dbg(gspca_dev, D_STREAM, "Chip revision: 012a\n" ); |
438 | init_161rev12A(gspca_dev); |
439 | return 0; |
440 | } |
441 | static int sd_init_72a(struct gspca_dev *gspca_dev) |
442 | { |
443 | gspca_dbg(gspca_dev, D_STREAM, "Chip revision: 072a\n" ); |
444 | write_vector(gspca_dev, data: rev72a_reset); |
445 | msleep(msecs: 200); |
446 | write_vector(gspca_dev, data: rev72a_init_data1); |
447 | write_sensor_72a(gspca_dev, sensor: rev72a_init_sensor1); |
448 | write_vector(gspca_dev, data: rev72a_init_data2); |
449 | write_sensor_72a(gspca_dev, sensor: rev72a_init_sensor2); |
450 | reg_w_val(gspca_dev, index: 0x8112, value: 0x30); |
451 | return 0; |
452 | } |
453 | |
454 | static void setbrightness(struct gspca_dev *gspca_dev, s32 val) |
455 | { |
456 | struct sd *sd = (struct sd *) gspca_dev; |
457 | __u16 reg; |
458 | |
459 | if (sd->chip_revision == Rev012A) |
460 | reg = 0x8610; |
461 | else |
462 | reg = 0x8611; |
463 | |
464 | reg_w_val(gspca_dev, index: reg + 0, value: val); /* R */ |
465 | reg_w_val(gspca_dev, index: reg + 1, value: val); /* Gr */ |
466 | reg_w_val(gspca_dev, index: reg + 2, value: val); /* B */ |
467 | reg_w_val(gspca_dev, index: reg + 3, value: val); /* Gb */ |
468 | } |
469 | |
470 | static void setwhite(struct gspca_dev *gspca_dev, s32 white, s32 contrast) |
471 | { |
472 | struct sd *sd = (struct sd *) gspca_dev; |
473 | __u8 blue, red; |
474 | __u16 reg; |
475 | |
476 | /* try to emulate MS-win as possible */ |
477 | red = 0x20 + white * 3 / 8; |
478 | blue = 0x90 - white * 5 / 8; |
479 | if (sd->chip_revision == Rev012A) { |
480 | reg = 0x8614; |
481 | } else { |
482 | reg = 0x8651; |
483 | red += contrast - 0x20; |
484 | blue += contrast - 0x20; |
485 | reg_w_val(gspca_dev, index: 0x8652, value: contrast + 0x20); /* Gr */ |
486 | reg_w_val(gspca_dev, index: 0x8654, value: contrast + 0x20); /* Gb */ |
487 | } |
488 | reg_w_val(gspca_dev, index: reg, value: red); |
489 | reg_w_val(gspca_dev, index: reg + 2, value: blue); |
490 | } |
491 | |
492 | /* rev 12a only */ |
493 | static void setexposure(struct gspca_dev *gspca_dev, s32 val) |
494 | { |
495 | int i, expo = 0; |
496 | |
497 | /* Register 0x8309 controls exposure for the spca561, |
498 | the basic exposure setting goes from 1-2047, where 1 is completely |
499 | dark and 2047 is very bright. It not only influences exposure but |
500 | also the framerate (to allow for longer exposure) from 1 - 300 it |
501 | only raises the exposure time then from 300 - 600 it halves the |
502 | framerate to be able to further raise the exposure time and for every |
503 | 300 more it halves the framerate again. This allows for a maximum |
504 | exposure time of circa 0.2 - 0.25 seconds (30 / (2000/3000) fps). |
505 | Sometimes this is not enough, the 1-2047 uses bits 0-10, bits 11-12 |
506 | configure a divider for the base framerate which us used at the |
507 | exposure setting of 1-300. These bits configure the base framerate |
508 | according to the following formula: fps = 60 / (value + 2) */ |
509 | |
510 | /* We choose to use the high bits setting the fixed framerate divisor |
511 | asap, as setting high basic exposure setting without the fixed |
512 | divider in combination with high gains makes the cam stop */ |
513 | static const int table[] = { 0, 450, 550, 625, EXPOSURE_MAX }; |
514 | |
515 | for (i = 0; i < ARRAY_SIZE(table) - 1; i++) { |
516 | if (val <= table[i + 1]) { |
517 | expo = val - table[i]; |
518 | if (i) |
519 | expo += 300; |
520 | expo |= i << 11; |
521 | break; |
522 | } |
523 | } |
524 | |
525 | gspca_dev->usb_buf[0] = expo; |
526 | gspca_dev->usb_buf[1] = expo >> 8; |
527 | reg_w_buf(gspca_dev, index: 0x8309, len: 2); |
528 | } |
529 | |
530 | /* rev 12a only */ |
531 | static void setgain(struct gspca_dev *gspca_dev, s32 val) |
532 | { |
533 | /* gain reg low 6 bits 0-63 gain, bit 6 and 7, both double the |
534 | sensitivity when set, so 31 + one of them set == 63, and 15 |
535 | with both of them set == 63 */ |
536 | if (val < 64) |
537 | gspca_dev->usb_buf[0] = val; |
538 | else if (val < 128) |
539 | gspca_dev->usb_buf[0] = (val / 2) | 0x40; |
540 | else |
541 | gspca_dev->usb_buf[0] = (val / 4) | 0xc0; |
542 | |
543 | gspca_dev->usb_buf[1] = 0; |
544 | reg_w_buf(gspca_dev, index: 0x8335, len: 2); |
545 | } |
546 | |
547 | static void setautogain(struct gspca_dev *gspca_dev, s32 val) |
548 | { |
549 | struct sd *sd = (struct sd *) gspca_dev; |
550 | |
551 | if (val) |
552 | sd->ag_cnt = AG_CNT_START; |
553 | else |
554 | sd->ag_cnt = -1; |
555 | } |
556 | |
557 | static int sd_start_12a(struct gspca_dev *gspca_dev) |
558 | { |
559 | int mode; |
560 | static const __u8 Reg8391[8] = |
561 | {0x92, 0x30, 0x20, 0x00, 0x0c, 0x00, 0x00, 0x00}; |
562 | |
563 | mode = gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv; |
564 | if (mode <= 1) { |
565 | /* Use compression on 320x240 and above */ |
566 | reg_w_val(gspca_dev, index: 0x8500, value: 0x10 | mode); |
567 | } else { |
568 | /* I couldn't get the compression to work below 320x240 |
569 | * Fortunately at these resolutions the bandwidth |
570 | * is sufficient to push raw frames at ~20fps */ |
571 | reg_w_val(gspca_dev, index: 0x8500, value: mode); |
572 | } /* -- qq@kuku.eu.org */ |
573 | |
574 | gspca_dev->usb_buf[0] = 0xaa; |
575 | gspca_dev->usb_buf[1] = 0x00; |
576 | reg_w_buf(gspca_dev, index: 0x8307, len: 2); |
577 | /* clock - lower 0x8X values lead to fps > 30 */ |
578 | reg_w_val(gspca_dev, index: 0x8700, value: 0x8a); |
579 | /* 0x8f 0x85 0x27 clock */ |
580 | reg_w_val(gspca_dev, index: 0x8112, value: 0x1e | 0x20); |
581 | reg_w_val(gspca_dev, index: 0x850b, value: 0x03); |
582 | memcpy(gspca_dev->usb_buf, Reg8391, 8); |
583 | reg_w_buf(gspca_dev, index: 0x8391, len: 8); |
584 | reg_w_buf(gspca_dev, index: 0x8390, len: 8); |
585 | |
586 | /* Led ON (bit 3 -> 0 */ |
587 | reg_w_val(gspca_dev, index: 0x8114, value: 0x00); |
588 | return 0; |
589 | } |
590 | static int sd_start_72a(struct gspca_dev *gspca_dev) |
591 | { |
592 | struct sd *sd = (struct sd *) gspca_dev; |
593 | int Clck; |
594 | int mode; |
595 | |
596 | write_vector(gspca_dev, data: rev72a_reset); |
597 | msleep(msecs: 200); |
598 | write_vector(gspca_dev, data: rev72a_init_data1); |
599 | write_sensor_72a(gspca_dev, sensor: rev72a_init_sensor1); |
600 | |
601 | mode = gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv; |
602 | switch (mode) { |
603 | default: |
604 | case 0: |
605 | Clck = 0x27; /* ms-win 0x87 */ |
606 | break; |
607 | case 1: |
608 | Clck = 0x25; |
609 | break; |
610 | case 2: |
611 | Clck = 0x22; |
612 | break; |
613 | case 3: |
614 | Clck = 0x21; |
615 | break; |
616 | } |
617 | reg_w_val(gspca_dev, index: 0x8700, value: Clck); /* 0x27 clock */ |
618 | reg_w_val(gspca_dev, index: 0x8702, value: 0x81); |
619 | reg_w_val(gspca_dev, index: 0x8500, value: mode); /* mode */ |
620 | write_sensor_72a(gspca_dev, sensor: rev72a_init_sensor2); |
621 | setwhite(gspca_dev, white: v4l2_ctrl_g_ctrl(ctrl: sd->hue), |
622 | contrast: v4l2_ctrl_g_ctrl(ctrl: sd->contrast)); |
623 | /* setbrightness(gspca_dev); * fixme: bad values */ |
624 | setautogain(gspca_dev, val: v4l2_ctrl_g_ctrl(ctrl: sd->autogain)); |
625 | reg_w_val(gspca_dev, index: 0x8112, value: 0x10 | 0x20); |
626 | return 0; |
627 | } |
628 | |
629 | static void sd_stopN(struct gspca_dev *gspca_dev) |
630 | { |
631 | struct sd *sd = (struct sd *) gspca_dev; |
632 | |
633 | if (sd->chip_revision == Rev012A) { |
634 | reg_w_val(gspca_dev, index: 0x8112, value: 0x0e); |
635 | /* Led Off (bit 3 -> 1 */ |
636 | reg_w_val(gspca_dev, index: 0x8114, value: 0x08); |
637 | } else { |
638 | reg_w_val(gspca_dev, index: 0x8112, value: 0x20); |
639 | /* reg_w_val(gspca_dev, 0x8102, 0x00); ?? */ |
640 | } |
641 | } |
642 | |
643 | static void do_autogain(struct gspca_dev *gspca_dev) |
644 | { |
645 | struct sd *sd = (struct sd *) gspca_dev; |
646 | int expotimes; |
647 | int pixelclk; |
648 | int gainG; |
649 | __u8 R, Gr, Gb, B; |
650 | int y; |
651 | __u8 luma_mean = 110; |
652 | __u8 luma_delta = 20; |
653 | __u8 spring = 4; |
654 | |
655 | if (sd->ag_cnt < 0) |
656 | return; |
657 | if (--sd->ag_cnt >= 0) |
658 | return; |
659 | sd->ag_cnt = AG_CNT_START; |
660 | |
661 | switch (sd->chip_revision) { |
662 | case Rev072A: |
663 | reg_r(gspca_dev, index: 0x8621, length: 1); |
664 | Gr = gspca_dev->usb_buf[0]; |
665 | reg_r(gspca_dev, index: 0x8622, length: 1); |
666 | R = gspca_dev->usb_buf[0]; |
667 | reg_r(gspca_dev, index: 0x8623, length: 1); |
668 | B = gspca_dev->usb_buf[0]; |
669 | reg_r(gspca_dev, index: 0x8624, length: 1); |
670 | Gb = gspca_dev->usb_buf[0]; |
671 | y = (77 * R + 75 * (Gr + Gb) + 29 * B) >> 8; |
672 | /* u= (128*B-(43*(Gr+Gb+R))) >> 8; */ |
673 | /* v= (128*R-(53*(Gr+Gb))-21*B) >> 8; */ |
674 | |
675 | if (y < luma_mean - luma_delta || |
676 | y > luma_mean + luma_delta) { |
677 | expotimes = i2c_read(gspca_dev, reg: 0x09, mode: 0x10); |
678 | pixelclk = 0x0800; |
679 | expotimes = expotimes & 0x07ff; |
680 | gainG = i2c_read(gspca_dev, reg: 0x35, mode: 0x10); |
681 | |
682 | expotimes += (luma_mean - y) >> spring; |
683 | gainG += (luma_mean - y) / 50; |
684 | |
685 | if (gainG > 0x3f) |
686 | gainG = 0x3f; |
687 | else if (gainG < 3) |
688 | gainG = 3; |
689 | i2c_write(gspca_dev, value: gainG, reg: 0x35); |
690 | |
691 | if (expotimes > 0x0256) |
692 | expotimes = 0x0256; |
693 | else if (expotimes < 3) |
694 | expotimes = 3; |
695 | i2c_write(gspca_dev, value: expotimes | pixelclk, reg: 0x09); |
696 | } |
697 | break; |
698 | } |
699 | } |
700 | |
701 | static void sd_pkt_scan(struct gspca_dev *gspca_dev, |
702 | u8 *data, /* isoc packet */ |
703 | int len) /* iso packet length */ |
704 | { |
705 | struct sd *sd = (struct sd *) gspca_dev; |
706 | |
707 | len--; |
708 | switch (*data++) { /* sequence number */ |
709 | case 0: /* start of frame */ |
710 | gspca_frame_add(gspca_dev, packet_type: LAST_PACKET, NULL, len: 0); |
711 | |
712 | /* This should never happen */ |
713 | if (len < 2) { |
714 | gspca_err(gspca_dev, "Short SOF packet, ignoring\n\n\n\n\n" ); |
715 | gspca_dev->last_packet_type = DISCARD_PACKET; |
716 | return; |
717 | } |
718 | |
719 | #if IS_ENABLED(CONFIG_INPUT) |
720 | if (data[0] & 0x20) { |
721 | input_report_key(dev: gspca_dev->input_dev, KEY_CAMERA, value: 1); |
722 | input_sync(dev: gspca_dev->input_dev); |
723 | input_report_key(dev: gspca_dev->input_dev, KEY_CAMERA, value: 0); |
724 | input_sync(dev: gspca_dev->input_dev); |
725 | } |
726 | #endif |
727 | |
728 | if (data[1] & 0x10) { |
729 | /* compressed bayer */ |
730 | gspca_frame_add(gspca_dev, packet_type: FIRST_PACKET, data, len); |
731 | } else { |
732 | /* raw bayer (with a header, which we skip) */ |
733 | if (sd->chip_revision == Rev012A) { |
734 | data += 20; |
735 | len -= 20; |
736 | } else { |
737 | data += 16; |
738 | len -= 16; |
739 | } |
740 | gspca_frame_add(gspca_dev, packet_type: FIRST_PACKET, data, len); |
741 | } |
742 | return; |
743 | case 0xff: /* drop (empty mpackets) */ |
744 | return; |
745 | } |
746 | gspca_frame_add(gspca_dev, packet_type: INTER_PACKET, data, len); |
747 | } |
748 | |
749 | static int sd_s_ctrl(struct v4l2_ctrl *ctrl) |
750 | { |
751 | struct gspca_dev *gspca_dev = |
752 | container_of(ctrl->handler, struct gspca_dev, ctrl_handler); |
753 | struct sd *sd = (struct sd *)gspca_dev; |
754 | |
755 | gspca_dev->usb_err = 0; |
756 | |
757 | if (!gspca_dev->streaming) |
758 | return 0; |
759 | |
760 | switch (ctrl->id) { |
761 | case V4L2_CID_BRIGHTNESS: |
762 | setbrightness(gspca_dev, val: ctrl->val); |
763 | break; |
764 | case V4L2_CID_CONTRAST: |
765 | /* hue/contrast control cluster for 72a */ |
766 | setwhite(gspca_dev, white: sd->hue->val, contrast: ctrl->val); |
767 | break; |
768 | case V4L2_CID_HUE: |
769 | /* just plain hue control for 12a */ |
770 | setwhite(gspca_dev, white: ctrl->val, contrast: 0); |
771 | break; |
772 | case V4L2_CID_EXPOSURE: |
773 | setexposure(gspca_dev, val: ctrl->val); |
774 | break; |
775 | case V4L2_CID_GAIN: |
776 | setgain(gspca_dev, val: ctrl->val); |
777 | break; |
778 | case V4L2_CID_AUTOGAIN: |
779 | setautogain(gspca_dev, val: ctrl->val); |
780 | break; |
781 | } |
782 | return gspca_dev->usb_err; |
783 | } |
784 | |
785 | static const struct v4l2_ctrl_ops sd_ctrl_ops = { |
786 | .s_ctrl = sd_s_ctrl, |
787 | }; |
788 | |
789 | static int sd_init_controls_12a(struct gspca_dev *gspca_dev) |
790 | { |
791 | struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler; |
792 | |
793 | gspca_dev->vdev.ctrl_handler = hdl; |
794 | v4l2_ctrl_handler_init(hdl, 3); |
795 | v4l2_ctrl_new_std(hdl, ops: &sd_ctrl_ops, |
796 | V4L2_CID_HUE, min: 1, max: 0x7f, step: 1, def: 0x40); |
797 | v4l2_ctrl_new_std(hdl, ops: &sd_ctrl_ops, |
798 | V4L2_CID_BRIGHTNESS, min: -128, max: 127, step: 1, def: 0); |
799 | v4l2_ctrl_new_std(hdl, ops: &sd_ctrl_ops, |
800 | V4L2_CID_EXPOSURE, min: 1, EXPOSURE_MAX, step: 1, def: 700); |
801 | v4l2_ctrl_new_std(hdl, ops: &sd_ctrl_ops, |
802 | V4L2_CID_GAIN, min: 0, max: 255, step: 1, def: 63); |
803 | |
804 | if (hdl->error) { |
805 | pr_err("Could not initialize controls\n" ); |
806 | return hdl->error; |
807 | } |
808 | return 0; |
809 | } |
810 | |
811 | static int sd_init_controls_72a(struct gspca_dev *gspca_dev) |
812 | { |
813 | struct sd *sd = (struct sd *)gspca_dev; |
814 | struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler; |
815 | |
816 | gspca_dev->vdev.ctrl_handler = hdl; |
817 | v4l2_ctrl_handler_init(hdl, 4); |
818 | sd->contrast = v4l2_ctrl_new_std(hdl, ops: &sd_ctrl_ops, |
819 | V4L2_CID_CONTRAST, min: 0, max: 0x3f, step: 1, def: 0x20); |
820 | sd->hue = v4l2_ctrl_new_std(hdl, ops: &sd_ctrl_ops, |
821 | V4L2_CID_HUE, min: 1, max: 0x7f, step: 1, def: 0x40); |
822 | v4l2_ctrl_new_std(hdl, ops: &sd_ctrl_ops, |
823 | V4L2_CID_BRIGHTNESS, min: 0, max: 0x3f, step: 1, def: 0x20); |
824 | sd->autogain = v4l2_ctrl_new_std(hdl, ops: &sd_ctrl_ops, |
825 | V4L2_CID_AUTOGAIN, min: 0, max: 1, step: 1, def: 1); |
826 | |
827 | if (hdl->error) { |
828 | pr_err("Could not initialize controls\n" ); |
829 | return hdl->error; |
830 | } |
831 | v4l2_ctrl_cluster(ncontrols: 2, controls: &sd->contrast); |
832 | return 0; |
833 | } |
834 | |
835 | /* sub-driver description */ |
836 | static const struct sd_desc sd_desc_12a = { |
837 | .name = MODULE_NAME, |
838 | .init_controls = sd_init_controls_12a, |
839 | .config = sd_config, |
840 | .init = sd_init_12a, |
841 | .start = sd_start_12a, |
842 | .stopN = sd_stopN, |
843 | .pkt_scan = sd_pkt_scan, |
844 | #if IS_ENABLED(CONFIG_INPUT) |
845 | .other_input = 1, |
846 | #endif |
847 | }; |
848 | static const struct sd_desc sd_desc_72a = { |
849 | .name = MODULE_NAME, |
850 | .init_controls = sd_init_controls_72a, |
851 | .config = sd_config, |
852 | .init = sd_init_72a, |
853 | .start = sd_start_72a, |
854 | .stopN = sd_stopN, |
855 | .pkt_scan = sd_pkt_scan, |
856 | .dq_callback = do_autogain, |
857 | #if IS_ENABLED(CONFIG_INPUT) |
858 | .other_input = 1, |
859 | #endif |
860 | }; |
861 | static const struct sd_desc *sd_desc[2] = { |
862 | &sd_desc_12a, |
863 | &sd_desc_72a |
864 | }; |
865 | |
866 | /* -- module initialisation -- */ |
867 | static const struct usb_device_id device_table[] = { |
868 | {USB_DEVICE(0x041e, 0x401a), .driver_info = Rev072A}, |
869 | {USB_DEVICE(0x041e, 0x403b), .driver_info = Rev012A}, |
870 | {USB_DEVICE(0x0458, 0x7004), .driver_info = Rev072A}, |
871 | {USB_DEVICE(0x0461, 0x0815), .driver_info = Rev072A}, |
872 | {USB_DEVICE(0x046d, 0x0928), .driver_info = Rev012A}, |
873 | {USB_DEVICE(0x046d, 0x0929), .driver_info = Rev012A}, |
874 | {USB_DEVICE(0x046d, 0x092a), .driver_info = Rev012A}, |
875 | {USB_DEVICE(0x046d, 0x092b), .driver_info = Rev012A}, |
876 | {USB_DEVICE(0x046d, 0x092c), .driver_info = Rev012A}, |
877 | {USB_DEVICE(0x046d, 0x092d), .driver_info = Rev012A}, |
878 | {USB_DEVICE(0x046d, 0x092e), .driver_info = Rev012A}, |
879 | {USB_DEVICE(0x046d, 0x092f), .driver_info = Rev012A}, |
880 | {USB_DEVICE(0x04fc, 0x0561), .driver_info = Rev072A}, |
881 | {USB_DEVICE(0x060b, 0xa001), .driver_info = Rev072A}, |
882 | {USB_DEVICE(0x10fd, 0x7e50), .driver_info = Rev072A}, |
883 | {USB_DEVICE(0xabcd, 0xcdee), .driver_info = Rev072A}, |
884 | {} |
885 | }; |
886 | |
887 | MODULE_DEVICE_TABLE(usb, device_table); |
888 | |
889 | /* -- device connect -- */ |
890 | static int sd_probe(struct usb_interface *intf, |
891 | const struct usb_device_id *id) |
892 | { |
893 | return gspca_dev_probe(intf, id, |
894 | sd_desc: sd_desc[id->driver_info], |
895 | dev_size: sizeof(struct sd), |
896 | THIS_MODULE); |
897 | } |
898 | |
899 | static struct usb_driver sd_driver = { |
900 | .name = MODULE_NAME, |
901 | .id_table = device_table, |
902 | .probe = sd_probe, |
903 | .disconnect = gspca_disconnect, |
904 | #ifdef CONFIG_PM |
905 | .suspend = gspca_suspend, |
906 | .resume = gspca_resume, |
907 | .reset_resume = gspca_resume, |
908 | #endif |
909 | }; |
910 | |
911 | module_usb_driver(sd_driver); |
912 | |