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4c98834a EA |
1 | /* |
2 | * Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher | |
3 | * Mark Cave-Ayland, Carlo E Prelz, Dick Streefland | |
4 | * Copyright (c) 2002, 2003 Tuukka Toivonen | |
5 | * Copyright (c) 2008 Erik Andrén | |
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 | * (at your option) 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 | * P/N 861037: Sensor HDCS1000 ASIC STV0600 | |
22 | * P/N 861050-0010: Sensor HDCS1000 ASIC STV0600 | |
23 | * P/N 861050-0020: Sensor Photobit PB100 ASIC STV0600-1 - QuickCam Express | |
24 | * P/N 861055: Sensor ST VV6410 ASIC STV0610 - LEGO cam | |
25 | * P/N 861075-0040: Sensor HDCS1000 ASIC | |
26 | * P/N 961179-0700: Sensor ST VV6410 ASIC STV0602 - Dexxa WebCam USB | |
27 | * P/N 861040-0000: Sensor ST VV6410 ASIC STV0610 - QuickCam Web | |
28 | */ | |
29 | ||
133a9fe9 JP |
30 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
31 | ||
0158e98f | 32 | #include <linux/input.h> |
4c98834a EA |
33 | #include "stv06xx_sensor.h" |
34 | ||
35 | MODULE_AUTHOR("Erik Andrén"); | |
36 | MODULE_DESCRIPTION("STV06XX USB Camera Driver"); | |
37 | MODULE_LICENSE("GPL"); | |
38 | ||
90ab5ee9 RR |
39 | static bool dump_bridge; |
40 | static bool dump_sensor; | |
4c98834a EA |
41 | |
42 | int stv06xx_write_bridge(struct sd *sd, u16 address, u16 i2c_data) | |
43 | { | |
44 | int err; | |
c93396e1 | 45 | struct gspca_dev *gspca_dev = (struct gspca_dev *)sd; |
4c98834a EA |
46 | struct usb_device *udev = sd->gspca_dev.dev; |
47 | __u8 *buf = sd->gspca_dev.usb_buf; | |
c93396e1 | 48 | |
4c98834a EA |
49 | u8 len = (i2c_data > 0xff) ? 2 : 1; |
50 | ||
51 | buf[0] = i2c_data & 0xff; | |
52 | buf[1] = (i2c_data >> 8) & 0xff; | |
53 | ||
54 | err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), | |
55 | 0x04, 0x40, address, 0, buf, len, | |
56 | STV06XX_URB_MSG_TIMEOUT); | |
57 | ||
4c98834a EA |
58 | PDEBUG(D_CONF, "Written 0x%x to address 0x%x, status: %d", |
59 | i2c_data, address, err); | |
60 | ||
61 | return (err < 0) ? err : 0; | |
62 | } | |
63 | ||
64 | int stv06xx_read_bridge(struct sd *sd, u16 address, u8 *i2c_data) | |
65 | { | |
66 | int err; | |
c93396e1 | 67 | struct gspca_dev *gspca_dev = (struct gspca_dev *)sd; |
4c98834a EA |
68 | struct usb_device *udev = sd->gspca_dev.dev; |
69 | __u8 *buf = sd->gspca_dev.usb_buf; | |
70 | ||
71 | err = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), | |
72 | 0x04, 0xc0, address, 0, buf, 1, | |
73 | STV06XX_URB_MSG_TIMEOUT); | |
74 | ||
75 | *i2c_data = buf[0]; | |
76 | ||
be3bdfb6 | 77 | PDEBUG(D_CONF, "Reading 0x%x from address 0x%x, status %d", |
4c98834a EA |
78 | *i2c_data, address, err); |
79 | ||
80 | return (err < 0) ? err : 0; | |
81 | } | |
82 | ||
83 | /* Wraps the normal write sensor bytes / words functions for writing a | |
84 | single value */ | |
85 | int stv06xx_write_sensor(struct sd *sd, u8 address, u16 value) | |
86 | { | |
87 | if (sd->sensor->i2c_len == 2) { | |
88 | u16 data[2] = { address, value }; | |
89 | return stv06xx_write_sensor_words(sd, data, 1); | |
90 | } else { | |
91 | u8 data[2] = { address, value }; | |
92 | return stv06xx_write_sensor_bytes(sd, data, 1); | |
93 | } | |
94 | } | |
95 | ||
96 | static int stv06xx_write_sensor_finish(struct sd *sd) | |
97 | { | |
98 | int err = 0; | |
99 | ||
8668d504 | 100 | if (sd->bridge == BRIDGE_STV610) { |
4c98834a EA |
101 | struct usb_device *udev = sd->gspca_dev.dev; |
102 | __u8 *buf = sd->gspca_dev.usb_buf; | |
103 | ||
4c98834a EA |
104 | buf[0] = 0; |
105 | err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), | |
106 | 0x04, 0x40, 0x1704, 0, buf, 1, | |
107 | STV06XX_URB_MSG_TIMEOUT); | |
108 | } | |
109 | ||
110 | return (err < 0) ? err : 0; | |
111 | } | |
112 | ||
113 | int stv06xx_write_sensor_bytes(struct sd *sd, const u8 *data, u8 len) | |
114 | { | |
115 | int err, i, j; | |
c93396e1 | 116 | struct gspca_dev *gspca_dev = (struct gspca_dev *)sd; |
4c98834a EA |
117 | struct usb_device *udev = sd->gspca_dev.dev; |
118 | __u8 *buf = sd->gspca_dev.usb_buf; | |
119 | ||
be3bdfb6 | 120 | PDEBUG(D_CONF, "I2C: Command buffer contains %d entries", len); |
4c98834a EA |
121 | for (i = 0; i < len;) { |
122 | /* Build the command buffer */ | |
123 | memset(buf, 0, I2C_BUFFER_LENGTH); | |
124 | for (j = 0; j < I2C_MAX_BYTES && i < len; j++, i++) { | |
125 | buf[j] = data[2*i]; | |
126 | buf[0x10 + j] = data[2*i+1]; | |
be3bdfb6 | 127 | PDEBUG(D_CONF, "I2C: Writing 0x%02x to reg 0x%02x", |
4c98834a EA |
128 | data[2*i+1], data[2*i]); |
129 | } | |
130 | buf[0x20] = sd->sensor->i2c_addr; | |
131 | buf[0x21] = j - 1; /* Number of commands to send - 1 */ | |
132 | buf[0x22] = I2C_WRITE_CMD; | |
133 | err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), | |
134 | 0x04, 0x40, 0x0400, 0, buf, | |
135 | I2C_BUFFER_LENGTH, | |
136 | STV06XX_URB_MSG_TIMEOUT); | |
a8ca20b2 EA |
137 | if (err < 0) |
138 | return err; | |
272ece5e MCC |
139 | } |
140 | return stv06xx_write_sensor_finish(sd); | |
4c98834a EA |
141 | } |
142 | ||
143 | int stv06xx_write_sensor_words(struct sd *sd, const u16 *data, u8 len) | |
144 | { | |
145 | int err, i, j; | |
c93396e1 | 146 | struct gspca_dev *gspca_dev = (struct gspca_dev *)sd; |
4c98834a EA |
147 | struct usb_device *udev = sd->gspca_dev.dev; |
148 | __u8 *buf = sd->gspca_dev.usb_buf; | |
149 | ||
be3bdfb6 | 150 | PDEBUG(D_CONF, "I2C: Command buffer contains %d entries", len); |
4c98834a EA |
151 | |
152 | for (i = 0; i < len;) { | |
153 | /* Build the command buffer */ | |
154 | memset(buf, 0, I2C_BUFFER_LENGTH); | |
155 | for (j = 0; j < I2C_MAX_WORDS && i < len; j++, i++) { | |
156 | buf[j] = data[2*i]; | |
157 | buf[0x10 + j * 2] = data[2*i+1]; | |
158 | buf[0x10 + j * 2 + 1] = data[2*i+1] >> 8; | |
be3bdfb6 | 159 | PDEBUG(D_CONF, "I2C: Writing 0x%04x to reg 0x%02x", |
4c98834a EA |
160 | data[2*i+1], data[2*i]); |
161 | } | |
162 | buf[0x20] = sd->sensor->i2c_addr; | |
163 | buf[0x21] = j - 1; /* Number of commands to send - 1 */ | |
164 | buf[0x22] = I2C_WRITE_CMD; | |
165 | err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), | |
166 | 0x04, 0x40, 0x0400, 0, buf, | |
167 | I2C_BUFFER_LENGTH, | |
168 | STV06XX_URB_MSG_TIMEOUT); | |
169 | if (err < 0) | |
170 | return err; | |
171 | } | |
172 | return stv06xx_write_sensor_finish(sd); | |
173 | } | |
174 | ||
175 | int stv06xx_read_sensor(struct sd *sd, const u8 address, u16 *value) | |
176 | { | |
177 | int err; | |
c93396e1 | 178 | struct gspca_dev *gspca_dev = (struct gspca_dev *)sd; |
4c98834a EA |
179 | struct usb_device *udev = sd->gspca_dev.dev; |
180 | __u8 *buf = sd->gspca_dev.usb_buf; | |
181 | ||
182 | err = stv06xx_write_bridge(sd, STV_I2C_FLUSH, sd->sensor->i2c_flush); | |
183 | if (err < 0) | |
184 | return err; | |
185 | ||
186 | /* Clear mem */ | |
187 | memset(buf, 0, I2C_BUFFER_LENGTH); | |
188 | ||
189 | buf[0] = address; | |
190 | buf[0x20] = sd->sensor->i2c_addr; | |
191 | buf[0x21] = 0; | |
192 | ||
193 | /* Read I2C register */ | |
194 | buf[0x22] = I2C_READ_CMD; | |
195 | ||
196 | err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), | |
197 | 0x04, 0x40, 0x1400, 0, buf, I2C_BUFFER_LENGTH, | |
198 | STV06XX_URB_MSG_TIMEOUT); | |
199 | if (err < 0) { | |
133a9fe9 | 200 | pr_err("I2C: Read error writing address: %d\n", err); |
4c98834a EA |
201 | return err; |
202 | } | |
203 | ||
204 | err = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), | |
205 | 0x04, 0xc0, 0x1410, 0, buf, sd->sensor->i2c_len, | |
206 | STV06XX_URB_MSG_TIMEOUT); | |
207 | if (sd->sensor->i2c_len == 2) | |
208 | *value = buf[0] | (buf[1] << 8); | |
209 | else | |
210 | *value = buf[0]; | |
211 | ||
be3bdfb6 | 212 | PDEBUG(D_CONF, "I2C: Read 0x%x from address 0x%x, status: %d", |
4c98834a EA |
213 | *value, address, err); |
214 | ||
215 | return (err < 0) ? err : 0; | |
216 | } | |
217 | ||
218 | /* Dumps all bridge registers */ | |
219 | static void stv06xx_dump_bridge(struct sd *sd) | |
220 | { | |
221 | int i; | |
222 | u8 data, buf; | |
223 | ||
133a9fe9 | 224 | pr_info("Dumping all stv06xx bridge registers\n"); |
4c98834a EA |
225 | for (i = 0x1400; i < 0x160f; i++) { |
226 | stv06xx_read_bridge(sd, i, &data); | |
227 | ||
133a9fe9 | 228 | pr_info("Read 0x%x from address 0x%x\n", data, i); |
4c98834a EA |
229 | } |
230 | ||
133a9fe9 | 231 | pr_info("Testing stv06xx bridge registers for writability\n"); |
4c98834a EA |
232 | for (i = 0x1400; i < 0x160f; i++) { |
233 | stv06xx_read_bridge(sd, i, &data); | |
234 | buf = data; | |
235 | ||
236 | stv06xx_write_bridge(sd, i, 0xff); | |
237 | stv06xx_read_bridge(sd, i, &data); | |
238 | if (data == 0xff) | |
133a9fe9 | 239 | pr_info("Register 0x%x is read/write\n", i); |
4c98834a | 240 | else if (data != buf) |
133a9fe9 JP |
241 | pr_info("Register 0x%x is read/write, but only partially\n", |
242 | i); | |
4c98834a | 243 | else |
133a9fe9 | 244 | pr_info("Register 0x%x is read-only\n", i); |
4c98834a EA |
245 | |
246 | stv06xx_write_bridge(sd, i, buf); | |
247 | } | |
248 | } | |
249 | ||
250 | /* this function is called at probe and resume time */ | |
251 | static int stv06xx_init(struct gspca_dev *gspca_dev) | |
252 | { | |
253 | struct sd *sd = (struct sd *) gspca_dev; | |
254 | int err; | |
255 | ||
256 | PDEBUG(D_PROBE, "Initializing camera"); | |
257 | ||
258 | /* Let the usb init settle for a bit | |
259 | before performing the initialization */ | |
260 | msleep(250); | |
261 | ||
262 | err = sd->sensor->init(sd); | |
263 | ||
8668d504 | 264 | if (dump_sensor && sd->sensor->dump) |
4c98834a EA |
265 | sd->sensor->dump(sd); |
266 | ||
267 | return (err < 0) ? err : 0; | |
268 | } | |
269 | ||
dec9c514 HV |
270 | /* this function is called at probe time */ |
271 | static int stv06xx_init_controls(struct gspca_dev *gspca_dev) | |
272 | { | |
273 | struct sd *sd = (struct sd *) gspca_dev; | |
274 | ||
275 | PDEBUG(D_PROBE, "Initializing controls"); | |
276 | ||
a8a47860 | 277 | gspca_dev->vdev.ctrl_handler = &gspca_dev->ctrl_handler; |
dec9c514 HV |
278 | return sd->sensor->init_controls(sd); |
279 | } | |
280 | ||
4c98834a EA |
281 | /* Start the camera */ |
282 | static int stv06xx_start(struct gspca_dev *gspca_dev) | |
283 | { | |
284 | struct sd *sd = (struct sd *) gspca_dev; | |
c0b33bdc HG |
285 | struct usb_host_interface *alt; |
286 | struct usb_interface *intf; | |
287 | int err, packet_size; | |
288 | ||
289 | intf = usb_ifnum_to_if(sd->gspca_dev.dev, sd->gspca_dev.iface); | |
290 | alt = usb_altnum_to_altsetting(intf, sd->gspca_dev.alt); | |
291 | if (!alt) { | |
c93396e1 | 292 | PERR("Couldn't get altsetting"); |
c0b33bdc HG |
293 | return -EIO; |
294 | } | |
295 | ||
296 | packet_size = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize); | |
297 | err = stv06xx_write_bridge(sd, STV_ISO_SIZE_L, packet_size); | |
298 | if (err < 0) | |
299 | return err; | |
4c98834a EA |
300 | |
301 | /* Prepare the sensor for start */ | |
302 | err = sd->sensor->start(sd); | |
303 | if (err < 0) | |
304 | goto out; | |
305 | ||
306 | /* Start isochronous streaming */ | |
307 | err = stv06xx_write_bridge(sd, STV_ISO_ENABLE, 1); | |
308 | ||
309 | out: | |
310 | if (err < 0) | |
311 | PDEBUG(D_STREAM, "Starting stream failed"); | |
312 | else | |
313 | PDEBUG(D_STREAM, "Started streaming"); | |
314 | ||
315 | return (err < 0) ? err : 0; | |
316 | } | |
317 | ||
c0b33bdc HG |
318 | static int stv06xx_isoc_init(struct gspca_dev *gspca_dev) |
319 | { | |
320 | struct usb_host_interface *alt; | |
321 | struct sd *sd = (struct sd *) gspca_dev; | |
322 | ||
323 | /* Start isoc bandwidth "negotiation" at max isoc bandwidth */ | |
5dae603d | 324 | alt = &gspca_dev->dev->actconfig->intf_cache[0]->altsetting[1]; |
c0b33bdc HG |
325 | alt->endpoint[0].desc.wMaxPacketSize = |
326 | cpu_to_le16(sd->sensor->max_packet_size[gspca_dev->curr_mode]); | |
327 | ||
328 | return 0; | |
329 | } | |
330 | ||
331 | static int stv06xx_isoc_nego(struct gspca_dev *gspca_dev) | |
332 | { | |
333 | int ret, packet_size, min_packet_size; | |
334 | struct usb_host_interface *alt; | |
335 | struct sd *sd = (struct sd *) gspca_dev; | |
336 | ||
5dae603d | 337 | alt = &gspca_dev->dev->actconfig->intf_cache[0]->altsetting[1]; |
c0b33bdc HG |
338 | packet_size = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize); |
339 | min_packet_size = sd->sensor->min_packet_size[gspca_dev->curr_mode]; | |
340 | if (packet_size <= min_packet_size) | |
341 | return -EIO; | |
342 | ||
343 | packet_size -= 100; | |
344 | if (packet_size < min_packet_size) | |
345 | packet_size = min_packet_size; | |
346 | alt->endpoint[0].desc.wMaxPacketSize = cpu_to_le16(packet_size); | |
347 | ||
348 | ret = usb_set_interface(gspca_dev->dev, gspca_dev->iface, 1); | |
349 | if (ret < 0) | |
c93396e1 | 350 | PERR("set alt 1 err %d", ret); |
c0b33bdc HG |
351 | |
352 | return ret; | |
353 | } | |
354 | ||
4c98834a EA |
355 | static void stv06xx_stopN(struct gspca_dev *gspca_dev) |
356 | { | |
357 | int err; | |
358 | struct sd *sd = (struct sd *) gspca_dev; | |
359 | ||
360 | /* stop ISO-streaming */ | |
361 | err = stv06xx_write_bridge(sd, STV_ISO_ENABLE, 0); | |
362 | if (err < 0) | |
363 | goto out; | |
364 | ||
365 | err = sd->sensor->stop(sd); | |
4c98834a EA |
366 | |
367 | out: | |
368 | if (err < 0) | |
369 | PDEBUG(D_STREAM, "Failed to stop stream"); | |
370 | else | |
371 | PDEBUG(D_STREAM, "Stopped streaming"); | |
372 | } | |
373 | ||
374 | /* | |
375 | * Analyse an USB packet of the data stream and store it appropriately. | |
376 | * Each packet contains an integral number of chunks. Each chunk has | |
377 | * 2-bytes identification, followed by 2-bytes that describe the chunk | |
378 | * length. Known/guessed chunk identifications are: | |
379 | * 8001/8005/C001/C005 - Begin new frame | |
380 | * 8002/8006/C002/C006 - End frame | |
381 | * 0200/4200 - Contains actual image data, bayer or compressed | |
382 | * 0005 - 11 bytes of unknown data | |
383 | * 0100 - 2 bytes of unknown data | |
384 | * The 0005 and 0100 chunks seem to appear only in compressed stream. | |
385 | */ | |
386 | static void stv06xx_pkt_scan(struct gspca_dev *gspca_dev, | |
76dd272b | 387 | u8 *data, /* isoc packet */ |
4c98834a EA |
388 | int len) /* iso packet length */ |
389 | { | |
8668d504 HG |
390 | struct sd *sd = (struct sd *) gspca_dev; |
391 | ||
4c98834a EA |
392 | PDEBUG(D_PACK, "Packet of length %d arrived", len); |
393 | ||
394 | /* A packet may contain several frames | |
395 | loop until the whole packet is reached */ | |
396 | while (len) { | |
397 | int id, chunk_len; | |
398 | ||
399 | if (len < 4) { | |
400 | PDEBUG(D_PACK, "Packet is smaller than 4 bytes"); | |
401 | return; | |
402 | } | |
403 | ||
404 | /* Capture the id */ | |
405 | id = (data[0] << 8) | data[1]; | |
406 | ||
407 | /* Capture the chunk length */ | |
408 | chunk_len = (data[2] << 8) | data[3]; | |
409 | PDEBUG(D_PACK, "Chunk id: %x, length: %d", id, chunk_len); | |
410 | ||
411 | data += 4; | |
412 | len -= 4; | |
413 | ||
414 | if (len < chunk_len) { | |
c93396e1 | 415 | PERR("URB packet length is smaller" |
4c98834a | 416 | " than the specified chunk length"); |
8668d504 | 417 | gspca_dev->last_packet_type = DISCARD_PACKET; |
4c98834a EA |
418 | return; |
419 | } | |
420 | ||
8668d504 | 421 | /* First byte seem to be 02=data 2nd byte is unknown??? */ |
1d00d6c1 | 422 | if (sd->bridge == BRIDGE_ST6422 && (id & 0xff00) == 0x0200) |
8668d504 HG |
423 | goto frame_data; |
424 | ||
4c98834a EA |
425 | switch (id) { |
426 | case 0x0200: | |
427 | case 0x4200: | |
8668d504 | 428 | frame_data: |
4c98834a EA |
429 | PDEBUG(D_PACK, "Frame data packet detected"); |
430 | ||
8668d504 HG |
431 | if (sd->to_skip) { |
432 | int skip = (sd->to_skip < chunk_len) ? | |
433 | sd->to_skip : chunk_len; | |
434 | data += skip; | |
435 | len -= skip; | |
436 | chunk_len -= skip; | |
437 | sd->to_skip -= skip; | |
438 | } | |
439 | ||
76dd272b | 440 | gspca_frame_add(gspca_dev, INTER_PACKET, |
4c98834a EA |
441 | data, chunk_len); |
442 | break; | |
443 | ||
444 | case 0x8001: | |
445 | case 0x8005: | |
446 | case 0xc001: | |
447 | case 0xc005: | |
448 | PDEBUG(D_PACK, "Starting new frame"); | |
449 | ||
450 | /* Create a new frame, chunk length should be zero */ | |
451 | gspca_frame_add(gspca_dev, FIRST_PACKET, | |
76dd272b | 452 | NULL, 0); |
4c98834a | 453 | |
8668d504 | 454 | if (sd->bridge == BRIDGE_ST6422) |
1966bc2a | 455 | sd->to_skip = gspca_dev->pixfmt.width * 4; |
8668d504 | 456 | |
4c98834a | 457 | if (chunk_len) |
c93396e1 | 458 | PERR("Chunk length is " |
4c98834a EA |
459 | "non-zero on a SOF"); |
460 | break; | |
461 | ||
462 | case 0x8002: | |
463 | case 0x8006: | |
464 | case 0xc002: | |
465 | PDEBUG(D_PACK, "End of frame detected"); | |
466 | ||
467 | /* Complete the last frame (if any) */ | |
76dd272b JFM |
468 | gspca_frame_add(gspca_dev, LAST_PACKET, |
469 | NULL, 0); | |
4c98834a EA |
470 | |
471 | if (chunk_len) | |
c93396e1 | 472 | PERR("Chunk length is " |
4c98834a EA |
473 | "non-zero on a EOF"); |
474 | break; | |
475 | ||
476 | case 0x0005: | |
477 | PDEBUG(D_PACK, "Chunk 0x005 detected"); | |
478 | /* Unknown chunk with 11 bytes of data, | |
479 | occurs just before end of each frame | |
480 | in compressed mode */ | |
481 | break; | |
482 | ||
483 | case 0x0100: | |
484 | PDEBUG(D_PACK, "Chunk 0x0100 detected"); | |
485 | /* Unknown chunk with 2 bytes of data, | |
486 | occurs 2-3 times per USB interrupt */ | |
487 | break; | |
8668d504 HG |
488 | case 0x42ff: |
489 | PDEBUG(D_PACK, "Chunk 0x42ff detected"); | |
490 | /* Special chunk seen sometimes on the ST6422 */ | |
491 | break; | |
4c98834a | 492 | default: |
8668d504 | 493 | PDEBUG(D_PACK, "Unknown chunk 0x%04x detected", id); |
4c98834a EA |
494 | /* Unknown chunk */ |
495 | } | |
496 | data += chunk_len; | |
497 | len -= chunk_len; | |
498 | } | |
499 | } | |
500 | ||
00ddb707 | 501 | #if IS_ENABLED(CONFIG_INPUT) |
0158e98f HG |
502 | static int sd_int_pkt_scan(struct gspca_dev *gspca_dev, |
503 | u8 *data, /* interrupt packet data */ | |
504 | int len) /* interrupt packet length */ | |
505 | { | |
506 | int ret = -EINVAL; | |
507 | ||
13e6c9f4 | 508 | if (len == 1 && (data[0] == 0x80 || data[0] == 0x10)) { |
0158e98f HG |
509 | input_report_key(gspca_dev->input_dev, KEY_CAMERA, 1); |
510 | input_sync(gspca_dev->input_dev); | |
511 | ret = 0; | |
512 | } | |
513 | ||
13e6c9f4 | 514 | if (len == 1 && (data[0] == 0x88 || data[0] == 0x11)) { |
0158e98f HG |
515 | input_report_key(gspca_dev->input_dev, KEY_CAMERA, 0); |
516 | input_sync(gspca_dev->input_dev); | |
517 | ret = 0; | |
518 | } | |
519 | ||
520 | return ret; | |
521 | } | |
522 | #endif | |
523 | ||
4c98834a EA |
524 | static int stv06xx_config(struct gspca_dev *gspca_dev, |
525 | const struct usb_device_id *id); | |
526 | ||
527 | /* sub-driver description */ | |
528 | static const struct sd_desc sd_desc = { | |
529 | .name = MODULE_NAME, | |
530 | .config = stv06xx_config, | |
531 | .init = stv06xx_init, | |
dec9c514 | 532 | .init_controls = stv06xx_init_controls, |
4c98834a EA |
533 | .start = stv06xx_start, |
534 | .stopN = stv06xx_stopN, | |
0158e98f | 535 | .pkt_scan = stv06xx_pkt_scan, |
c0b33bdc HG |
536 | .isoc_init = stv06xx_isoc_init, |
537 | .isoc_nego = stv06xx_isoc_nego, | |
00ddb707 | 538 | #if IS_ENABLED(CONFIG_INPUT) |
0158e98f HG |
539 | .int_pkt_scan = sd_int_pkt_scan, |
540 | #endif | |
4c98834a EA |
541 | }; |
542 | ||
543 | /* This function is called at probe time */ | |
544 | static int stv06xx_config(struct gspca_dev *gspca_dev, | |
545 | const struct usb_device_id *id) | |
546 | { | |
547 | struct sd *sd = (struct sd *) gspca_dev; | |
4c98834a EA |
548 | |
549 | PDEBUG(D_PROBE, "Configuring camera"); | |
550 | ||
8668d504 | 551 | sd->bridge = id->driver_info; |
d67a1ada | 552 | gspca_dev->sd_desc = &sd_desc; |
4c98834a EA |
553 | |
554 | if (dump_bridge) | |
555 | stv06xx_dump_bridge(sd); | |
556 | ||
8668d504 HG |
557 | sd->sensor = &stv06xx_sensor_st6422; |
558 | if (!sd->sensor->probe(sd)) | |
559 | return 0; | |
560 | ||
4c98834a EA |
561 | sd->sensor = &stv06xx_sensor_vv6410; |
562 | if (!sd->sensor->probe(sd)) | |
563 | return 0; | |
564 | ||
565 | sd->sensor = &stv06xx_sensor_hdcs1x00; | |
566 | if (!sd->sensor->probe(sd)) | |
567 | return 0; | |
568 | ||
569 | sd->sensor = &stv06xx_sensor_hdcs1020; | |
570 | if (!sd->sensor->probe(sd)) | |
571 | return 0; | |
572 | ||
573 | sd->sensor = &stv06xx_sensor_pb0100; | |
574 | if (!sd->sensor->probe(sd)) | |
575 | return 0; | |
576 | ||
577 | sd->sensor = NULL; | |
578 | return -ENODEV; | |
579 | } | |
580 | ||
581 | ||
582 | ||
583 | /* -- module initialisation -- */ | |
95c967c1 | 584 | static const struct usb_device_id device_table[] = { |
8668d504 HG |
585 | /* QuickCam Express */ |
586 | {USB_DEVICE(0x046d, 0x0840), .driver_info = BRIDGE_STV600 }, | |
587 | /* LEGO cam / QuickCam Web */ | |
588 | {USB_DEVICE(0x046d, 0x0850), .driver_info = BRIDGE_STV610 }, | |
589 | /* Dexxa WebCam USB */ | |
590 | {USB_DEVICE(0x046d, 0x0870), .driver_info = BRIDGE_STV602 }, | |
591 | /* QuickCam Messenger */ | |
592 | {USB_DEVICE(0x046D, 0x08F0), .driver_info = BRIDGE_ST6422 }, | |
593 | /* QuickCam Communicate */ | |
594 | {USB_DEVICE(0x046D, 0x08F5), .driver_info = BRIDGE_ST6422 }, | |
595 | /* QuickCam Messenger (new) */ | |
596 | {USB_DEVICE(0x046D, 0x08F6), .driver_info = BRIDGE_ST6422 }, | |
4c98834a EA |
597 | {} |
598 | }; | |
599 | MODULE_DEVICE_TABLE(usb, device_table); | |
600 | ||
601 | /* -- device connect -- */ | |
602 | static int sd_probe(struct usb_interface *intf, | |
603 | const struct usb_device_id *id) | |
604 | { | |
4c98834a EA |
605 | return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd), |
606 | THIS_MODULE); | |
607 | } | |
608 | ||
8a787b40 | 609 | static void sd_disconnect(struct usb_interface *intf) |
4c98834a EA |
610 | { |
611 | struct gspca_dev *gspca_dev = usb_get_intfdata(intf); | |
612 | struct sd *sd = (struct sd *) gspca_dev; | |
dec9c514 | 613 | void *priv = sd->sensor_priv; |
4c98834a EA |
614 | PDEBUG(D_PROBE, "Disconnecting the stv06xx device"); |
615 | ||
dec9c514 | 616 | sd->sensor = NULL; |
4c98834a | 617 | gspca_disconnect(intf); |
dec9c514 | 618 | kfree(priv); |
4c98834a EA |
619 | } |
620 | ||
621 | static struct usb_driver sd_driver = { | |
622 | .name = MODULE_NAME, | |
623 | .id_table = device_table, | |
624 | .probe = sd_probe, | |
625 | .disconnect = sd_disconnect, | |
626 | #ifdef CONFIG_PM | |
627 | .suspend = gspca_suspend, | |
628 | .resume = gspca_resume, | |
dec9c514 | 629 | .reset_resume = gspca_resume, |
4c98834a EA |
630 | #endif |
631 | }; | |
632 | ||
ecb3b2b3 | 633 | module_usb_driver(sd_driver); |
4c98834a EA |
634 | |
635 | module_param(dump_bridge, bool, S_IRUGO | S_IWUSR); | |
636 | MODULE_PARM_DESC(dump_bridge, "Dumps all usb bridge registers at startup"); | |
637 | ||
638 | module_param(dump_sensor, bool, S_IRUGO | S_IWUSR); | |
639 | MODULE_PARM_DESC(dump_sensor, "Dumps all sensor registers at startup"); |