Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 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 | |
Hans de Goede | 0158e98 | 2010-02-20 11:26:07 -0300 | [diff] [blame] | 30 | #include <linux/input.h> |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 31 | #include "stv06xx_sensor.h" |
| 32 | |
| 33 | MODULE_AUTHOR("Erik Andrén"); |
| 34 | MODULE_DESCRIPTION("STV06XX USB Camera Driver"); |
| 35 | MODULE_LICENSE("GPL"); |
| 36 | |
Mauro Carvalho Chehab | 8a787b4 | 2008-12-29 18:35:51 -0300 | [diff] [blame] | 37 | static int dump_bridge; |
| 38 | static int dump_sensor; |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 39 | |
| 40 | int stv06xx_write_bridge(struct sd *sd, u16 address, u16 i2c_data) |
| 41 | { |
| 42 | int err; |
| 43 | struct usb_device *udev = sd->gspca_dev.dev; |
| 44 | __u8 *buf = sd->gspca_dev.usb_buf; |
| 45 | u8 len = (i2c_data > 0xff) ? 2 : 1; |
| 46 | |
| 47 | buf[0] = i2c_data & 0xff; |
| 48 | buf[1] = (i2c_data >> 8) & 0xff; |
| 49 | |
| 50 | err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
| 51 | 0x04, 0x40, address, 0, buf, len, |
| 52 | STV06XX_URB_MSG_TIMEOUT); |
| 53 | |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 54 | PDEBUG(D_CONF, "Written 0x%x to address 0x%x, status: %d", |
| 55 | i2c_data, address, err); |
| 56 | |
| 57 | return (err < 0) ? err : 0; |
| 58 | } |
| 59 | |
| 60 | int stv06xx_read_bridge(struct sd *sd, u16 address, u8 *i2c_data) |
| 61 | { |
| 62 | int err; |
| 63 | struct usb_device *udev = sd->gspca_dev.dev; |
| 64 | __u8 *buf = sd->gspca_dev.usb_buf; |
| 65 | |
| 66 | err = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), |
| 67 | 0x04, 0xc0, address, 0, buf, 1, |
| 68 | STV06XX_URB_MSG_TIMEOUT); |
| 69 | |
| 70 | *i2c_data = buf[0]; |
| 71 | |
Erik Andrén | be3bdfb | 2009-06-22 11:12:29 -0300 | [diff] [blame] | 72 | PDEBUG(D_CONF, "Reading 0x%x from address 0x%x, status %d", |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 73 | *i2c_data, address, err); |
| 74 | |
| 75 | return (err < 0) ? err : 0; |
| 76 | } |
| 77 | |
| 78 | /* Wraps the normal write sensor bytes / words functions for writing a |
| 79 | single value */ |
| 80 | int stv06xx_write_sensor(struct sd *sd, u8 address, u16 value) |
| 81 | { |
| 82 | if (sd->sensor->i2c_len == 2) { |
| 83 | u16 data[2] = { address, value }; |
| 84 | return stv06xx_write_sensor_words(sd, data, 1); |
| 85 | } else { |
| 86 | u8 data[2] = { address, value }; |
| 87 | return stv06xx_write_sensor_bytes(sd, data, 1); |
| 88 | } |
| 89 | } |
| 90 | |
| 91 | static int stv06xx_write_sensor_finish(struct sd *sd) |
| 92 | { |
| 93 | int err = 0; |
| 94 | |
Hans de Goede | 8668d50 | 2009-06-17 18:37:57 -0300 | [diff] [blame] | 95 | if (sd->bridge == BRIDGE_STV610) { |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 96 | struct usb_device *udev = sd->gspca_dev.dev; |
| 97 | __u8 *buf = sd->gspca_dev.usb_buf; |
| 98 | |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 99 | buf[0] = 0; |
| 100 | err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
| 101 | 0x04, 0x40, 0x1704, 0, buf, 1, |
| 102 | STV06XX_URB_MSG_TIMEOUT); |
| 103 | } |
| 104 | |
| 105 | return (err < 0) ? err : 0; |
| 106 | } |
| 107 | |
| 108 | int stv06xx_write_sensor_bytes(struct sd *sd, const u8 *data, u8 len) |
| 109 | { |
| 110 | int err, i, j; |
| 111 | struct usb_device *udev = sd->gspca_dev.dev; |
| 112 | __u8 *buf = sd->gspca_dev.usb_buf; |
| 113 | |
Erik Andrén | be3bdfb | 2009-06-22 11:12:29 -0300 | [diff] [blame] | 114 | PDEBUG(D_CONF, "I2C: Command buffer contains %d entries", len); |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 115 | for (i = 0; i < len;) { |
| 116 | /* Build the command buffer */ |
| 117 | memset(buf, 0, I2C_BUFFER_LENGTH); |
| 118 | for (j = 0; j < I2C_MAX_BYTES && i < len; j++, i++) { |
| 119 | buf[j] = data[2*i]; |
| 120 | buf[0x10 + j] = data[2*i+1]; |
Erik Andrén | be3bdfb | 2009-06-22 11:12:29 -0300 | [diff] [blame] | 121 | PDEBUG(D_CONF, "I2C: Writing 0x%02x to reg 0x%02x", |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 122 | data[2*i+1], data[2*i]); |
| 123 | } |
| 124 | buf[0x20] = sd->sensor->i2c_addr; |
| 125 | buf[0x21] = j - 1; /* Number of commands to send - 1 */ |
| 126 | buf[0x22] = I2C_WRITE_CMD; |
| 127 | err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
| 128 | 0x04, 0x40, 0x0400, 0, buf, |
| 129 | I2C_BUFFER_LENGTH, |
| 130 | STV06XX_URB_MSG_TIMEOUT); |
Erik Andrén | a8ca20b | 2009-09-18 14:31:03 -0300 | [diff] [blame] | 131 | if (err < 0) |
| 132 | return err; |
Mauro Carvalho Chehab | 272ece5 | 2009-08-20 10:18:29 -0300 | [diff] [blame] | 133 | } |
| 134 | return stv06xx_write_sensor_finish(sd); |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 135 | } |
| 136 | |
| 137 | int stv06xx_write_sensor_words(struct sd *sd, const u16 *data, u8 len) |
| 138 | { |
| 139 | int err, i, j; |
| 140 | struct usb_device *udev = sd->gspca_dev.dev; |
| 141 | __u8 *buf = sd->gspca_dev.usb_buf; |
| 142 | |
Erik Andrén | be3bdfb | 2009-06-22 11:12:29 -0300 | [diff] [blame] | 143 | PDEBUG(D_CONF, "I2C: Command buffer contains %d entries", len); |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 144 | |
| 145 | for (i = 0; i < len;) { |
| 146 | /* Build the command buffer */ |
| 147 | memset(buf, 0, I2C_BUFFER_LENGTH); |
| 148 | for (j = 0; j < I2C_MAX_WORDS && i < len; j++, i++) { |
| 149 | buf[j] = data[2*i]; |
| 150 | buf[0x10 + j * 2] = data[2*i+1]; |
| 151 | buf[0x10 + j * 2 + 1] = data[2*i+1] >> 8; |
Erik Andrén | be3bdfb | 2009-06-22 11:12:29 -0300 | [diff] [blame] | 152 | PDEBUG(D_CONF, "I2C: Writing 0x%04x to reg 0x%02x", |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 153 | data[2*i+1], data[2*i]); |
| 154 | } |
| 155 | buf[0x20] = sd->sensor->i2c_addr; |
| 156 | buf[0x21] = j - 1; /* Number of commands to send - 1 */ |
| 157 | buf[0x22] = I2C_WRITE_CMD; |
| 158 | err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
| 159 | 0x04, 0x40, 0x0400, 0, buf, |
| 160 | I2C_BUFFER_LENGTH, |
| 161 | STV06XX_URB_MSG_TIMEOUT); |
| 162 | if (err < 0) |
| 163 | return err; |
| 164 | } |
| 165 | return stv06xx_write_sensor_finish(sd); |
| 166 | } |
| 167 | |
| 168 | int stv06xx_read_sensor(struct sd *sd, const u8 address, u16 *value) |
| 169 | { |
| 170 | int err; |
| 171 | struct usb_device *udev = sd->gspca_dev.dev; |
| 172 | __u8 *buf = sd->gspca_dev.usb_buf; |
| 173 | |
| 174 | err = stv06xx_write_bridge(sd, STV_I2C_FLUSH, sd->sensor->i2c_flush); |
| 175 | if (err < 0) |
| 176 | return err; |
| 177 | |
| 178 | /* Clear mem */ |
| 179 | memset(buf, 0, I2C_BUFFER_LENGTH); |
| 180 | |
| 181 | buf[0] = address; |
| 182 | buf[0x20] = sd->sensor->i2c_addr; |
| 183 | buf[0x21] = 0; |
| 184 | |
| 185 | /* Read I2C register */ |
| 186 | buf[0x22] = I2C_READ_CMD; |
| 187 | |
| 188 | err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
| 189 | 0x04, 0x40, 0x1400, 0, buf, I2C_BUFFER_LENGTH, |
| 190 | STV06XX_URB_MSG_TIMEOUT); |
| 191 | if (err < 0) { |
Erik Andrén | be3bdfb | 2009-06-22 11:12:29 -0300 | [diff] [blame] | 192 | PDEBUG(D_ERR, "I2C: Read error writing address: %d", err); |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 193 | return err; |
| 194 | } |
| 195 | |
| 196 | err = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), |
| 197 | 0x04, 0xc0, 0x1410, 0, buf, sd->sensor->i2c_len, |
| 198 | STV06XX_URB_MSG_TIMEOUT); |
| 199 | if (sd->sensor->i2c_len == 2) |
| 200 | *value = buf[0] | (buf[1] << 8); |
| 201 | else |
| 202 | *value = buf[0]; |
| 203 | |
Erik Andrén | be3bdfb | 2009-06-22 11:12:29 -0300 | [diff] [blame] | 204 | PDEBUG(D_CONF, "I2C: Read 0x%x from address 0x%x, status: %d", |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 205 | *value, address, err); |
| 206 | |
| 207 | return (err < 0) ? err : 0; |
| 208 | } |
| 209 | |
| 210 | /* Dumps all bridge registers */ |
| 211 | static void stv06xx_dump_bridge(struct sd *sd) |
| 212 | { |
| 213 | int i; |
| 214 | u8 data, buf; |
| 215 | |
| 216 | info("Dumping all stv06xx bridge registers"); |
| 217 | for (i = 0x1400; i < 0x160f; i++) { |
| 218 | stv06xx_read_bridge(sd, i, &data); |
| 219 | |
| 220 | info("Read 0x%x from address 0x%x", data, i); |
| 221 | } |
| 222 | |
Erik Andrén | 6a1b262 | 2009-12-26 18:00:02 -0300 | [diff] [blame] | 223 | info("Testing stv06xx bridge registers for writability"); |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 224 | for (i = 0x1400; i < 0x160f; i++) { |
| 225 | stv06xx_read_bridge(sd, i, &data); |
| 226 | buf = data; |
| 227 | |
| 228 | stv06xx_write_bridge(sd, i, 0xff); |
| 229 | stv06xx_read_bridge(sd, i, &data); |
| 230 | if (data == 0xff) |
| 231 | info("Register 0x%x is read/write", i); |
| 232 | else if (data != buf) |
| 233 | info("Register 0x%x is read/write," |
Erik Andrén | 6a1b262 | 2009-12-26 18:00:02 -0300 | [diff] [blame] | 234 | " but only partially", i); |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 235 | else |
| 236 | info("Register 0x%x is read-only", i); |
| 237 | |
| 238 | stv06xx_write_bridge(sd, i, buf); |
| 239 | } |
| 240 | } |
| 241 | |
| 242 | /* this function is called at probe and resume time */ |
| 243 | static int stv06xx_init(struct gspca_dev *gspca_dev) |
| 244 | { |
| 245 | struct sd *sd = (struct sd *) gspca_dev; |
| 246 | int err; |
| 247 | |
| 248 | PDEBUG(D_PROBE, "Initializing camera"); |
| 249 | |
| 250 | /* Let the usb init settle for a bit |
| 251 | before performing the initialization */ |
| 252 | msleep(250); |
| 253 | |
| 254 | err = sd->sensor->init(sd); |
| 255 | |
Hans de Goede | 8668d50 | 2009-06-17 18:37:57 -0300 | [diff] [blame] | 256 | if (dump_sensor && sd->sensor->dump) |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 257 | sd->sensor->dump(sd); |
| 258 | |
| 259 | return (err < 0) ? err : 0; |
| 260 | } |
| 261 | |
| 262 | /* Start the camera */ |
| 263 | static int stv06xx_start(struct gspca_dev *gspca_dev) |
| 264 | { |
| 265 | struct sd *sd = (struct sd *) gspca_dev; |
| 266 | int err; |
| 267 | |
| 268 | /* Prepare the sensor for start */ |
| 269 | err = sd->sensor->start(sd); |
| 270 | if (err < 0) |
| 271 | goto out; |
| 272 | |
| 273 | /* Start isochronous streaming */ |
| 274 | err = stv06xx_write_bridge(sd, STV_ISO_ENABLE, 1); |
| 275 | |
| 276 | out: |
| 277 | if (err < 0) |
| 278 | PDEBUG(D_STREAM, "Starting stream failed"); |
| 279 | else |
| 280 | PDEBUG(D_STREAM, "Started streaming"); |
| 281 | |
| 282 | return (err < 0) ? err : 0; |
| 283 | } |
| 284 | |
| 285 | static void stv06xx_stopN(struct gspca_dev *gspca_dev) |
| 286 | { |
| 287 | int err; |
| 288 | struct sd *sd = (struct sd *) gspca_dev; |
| 289 | |
| 290 | /* stop ISO-streaming */ |
| 291 | err = stv06xx_write_bridge(sd, STV_ISO_ENABLE, 0); |
| 292 | if (err < 0) |
| 293 | goto out; |
| 294 | |
| 295 | err = sd->sensor->stop(sd); |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 296 | |
| 297 | out: |
| 298 | if (err < 0) |
| 299 | PDEBUG(D_STREAM, "Failed to stop stream"); |
| 300 | else |
| 301 | PDEBUG(D_STREAM, "Stopped streaming"); |
| 302 | } |
| 303 | |
| 304 | /* |
| 305 | * Analyse an USB packet of the data stream and store it appropriately. |
| 306 | * Each packet contains an integral number of chunks. Each chunk has |
| 307 | * 2-bytes identification, followed by 2-bytes that describe the chunk |
| 308 | * length. Known/guessed chunk identifications are: |
| 309 | * 8001/8005/C001/C005 - Begin new frame |
| 310 | * 8002/8006/C002/C006 - End frame |
| 311 | * 0200/4200 - Contains actual image data, bayer or compressed |
| 312 | * 0005 - 11 bytes of unknown data |
| 313 | * 0100 - 2 bytes of unknown data |
| 314 | * The 0005 and 0100 chunks seem to appear only in compressed stream. |
| 315 | */ |
| 316 | static void stv06xx_pkt_scan(struct gspca_dev *gspca_dev, |
Jean-Francois Moine | 76dd272 | 2009-11-13 09:21:03 -0300 | [diff] [blame] | 317 | u8 *data, /* isoc packet */ |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 318 | int len) /* iso packet length */ |
| 319 | { |
Hans de Goede | 8668d50 | 2009-06-17 18:37:57 -0300 | [diff] [blame] | 320 | struct sd *sd = (struct sd *) gspca_dev; |
| 321 | |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 322 | PDEBUG(D_PACK, "Packet of length %d arrived", len); |
| 323 | |
| 324 | /* A packet may contain several frames |
| 325 | loop until the whole packet is reached */ |
| 326 | while (len) { |
| 327 | int id, chunk_len; |
| 328 | |
| 329 | if (len < 4) { |
| 330 | PDEBUG(D_PACK, "Packet is smaller than 4 bytes"); |
| 331 | return; |
| 332 | } |
| 333 | |
| 334 | /* Capture the id */ |
| 335 | id = (data[0] << 8) | data[1]; |
| 336 | |
| 337 | /* Capture the chunk length */ |
| 338 | chunk_len = (data[2] << 8) | data[3]; |
| 339 | PDEBUG(D_PACK, "Chunk id: %x, length: %d", id, chunk_len); |
| 340 | |
| 341 | data += 4; |
| 342 | len -= 4; |
| 343 | |
| 344 | if (len < chunk_len) { |
| 345 | PDEBUG(D_ERR, "URB packet length is smaller" |
| 346 | " than the specified chunk length"); |
Hans de Goede | 8668d50 | 2009-06-17 18:37:57 -0300 | [diff] [blame] | 347 | gspca_dev->last_packet_type = DISCARD_PACKET; |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 348 | return; |
| 349 | } |
| 350 | |
Hans de Goede | 8668d50 | 2009-06-17 18:37:57 -0300 | [diff] [blame] | 351 | /* First byte seem to be 02=data 2nd byte is unknown??? */ |
| 352 | if (sd->bridge == BRIDGE_ST6422 && (id & 0xFF00) == 0x0200) |
| 353 | goto frame_data; |
| 354 | |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 355 | switch (id) { |
| 356 | case 0x0200: |
| 357 | case 0x4200: |
Hans de Goede | 8668d50 | 2009-06-17 18:37:57 -0300 | [diff] [blame] | 358 | frame_data: |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 359 | PDEBUG(D_PACK, "Frame data packet detected"); |
| 360 | |
Hans de Goede | 8668d50 | 2009-06-17 18:37:57 -0300 | [diff] [blame] | 361 | if (sd->to_skip) { |
| 362 | int skip = (sd->to_skip < chunk_len) ? |
| 363 | sd->to_skip : chunk_len; |
| 364 | data += skip; |
| 365 | len -= skip; |
| 366 | chunk_len -= skip; |
| 367 | sd->to_skip -= skip; |
| 368 | } |
| 369 | |
Jean-Francois Moine | 76dd272 | 2009-11-13 09:21:03 -0300 | [diff] [blame] | 370 | gspca_frame_add(gspca_dev, INTER_PACKET, |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 371 | data, chunk_len); |
| 372 | break; |
| 373 | |
| 374 | case 0x8001: |
| 375 | case 0x8005: |
| 376 | case 0xc001: |
| 377 | case 0xc005: |
| 378 | PDEBUG(D_PACK, "Starting new frame"); |
| 379 | |
| 380 | /* Create a new frame, chunk length should be zero */ |
| 381 | gspca_frame_add(gspca_dev, FIRST_PACKET, |
Jean-Francois Moine | 76dd272 | 2009-11-13 09:21:03 -0300 | [diff] [blame] | 382 | NULL, 0); |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 383 | |
Hans de Goede | 8668d50 | 2009-06-17 18:37:57 -0300 | [diff] [blame] | 384 | if (sd->bridge == BRIDGE_ST6422) |
| 385 | sd->to_skip = gspca_dev->width * 4; |
| 386 | |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 387 | if (chunk_len) |
| 388 | PDEBUG(D_ERR, "Chunk length is " |
| 389 | "non-zero on a SOF"); |
| 390 | break; |
| 391 | |
| 392 | case 0x8002: |
| 393 | case 0x8006: |
| 394 | case 0xc002: |
| 395 | PDEBUG(D_PACK, "End of frame detected"); |
| 396 | |
| 397 | /* Complete the last frame (if any) */ |
Jean-Francois Moine | 76dd272 | 2009-11-13 09:21:03 -0300 | [diff] [blame] | 398 | gspca_frame_add(gspca_dev, LAST_PACKET, |
| 399 | NULL, 0); |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 400 | |
| 401 | if (chunk_len) |
| 402 | PDEBUG(D_ERR, "Chunk length is " |
| 403 | "non-zero on a EOF"); |
| 404 | break; |
| 405 | |
| 406 | case 0x0005: |
| 407 | PDEBUG(D_PACK, "Chunk 0x005 detected"); |
| 408 | /* Unknown chunk with 11 bytes of data, |
| 409 | occurs just before end of each frame |
| 410 | in compressed mode */ |
| 411 | break; |
| 412 | |
| 413 | case 0x0100: |
| 414 | PDEBUG(D_PACK, "Chunk 0x0100 detected"); |
| 415 | /* Unknown chunk with 2 bytes of data, |
| 416 | occurs 2-3 times per USB interrupt */ |
| 417 | break; |
Hans de Goede | 8668d50 | 2009-06-17 18:37:57 -0300 | [diff] [blame] | 418 | case 0x42ff: |
| 419 | PDEBUG(D_PACK, "Chunk 0x42ff detected"); |
| 420 | /* Special chunk seen sometimes on the ST6422 */ |
| 421 | break; |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 422 | default: |
Hans de Goede | 8668d50 | 2009-06-17 18:37:57 -0300 | [diff] [blame] | 423 | PDEBUG(D_PACK, "Unknown chunk 0x%04x detected", id); |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 424 | /* Unknown chunk */ |
| 425 | } |
| 426 | data += chunk_len; |
| 427 | len -= chunk_len; |
| 428 | } |
| 429 | } |
| 430 | |
Hans de Goede | 0158e98 | 2010-02-20 11:26:07 -0300 | [diff] [blame] | 431 | #ifdef CONFIG_INPUT |
| 432 | static int sd_int_pkt_scan(struct gspca_dev *gspca_dev, |
| 433 | u8 *data, /* interrupt packet data */ |
| 434 | int len) /* interrupt packet length */ |
| 435 | { |
| 436 | int ret = -EINVAL; |
| 437 | |
| 438 | if (len == 1 && data[0] == 0x80) { |
| 439 | input_report_key(gspca_dev->input_dev, KEY_CAMERA, 1); |
| 440 | input_sync(gspca_dev->input_dev); |
| 441 | ret = 0; |
| 442 | } |
| 443 | |
| 444 | if (len == 1 && data[0] == 0x88) { |
| 445 | input_report_key(gspca_dev->input_dev, KEY_CAMERA, 0); |
| 446 | input_sync(gspca_dev->input_dev); |
| 447 | ret = 0; |
| 448 | } |
| 449 | |
| 450 | return ret; |
| 451 | } |
| 452 | #endif |
| 453 | |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 454 | static int stv06xx_config(struct gspca_dev *gspca_dev, |
| 455 | const struct usb_device_id *id); |
| 456 | |
| 457 | /* sub-driver description */ |
| 458 | static const struct sd_desc sd_desc = { |
| 459 | .name = MODULE_NAME, |
| 460 | .config = stv06xx_config, |
| 461 | .init = stv06xx_init, |
| 462 | .start = stv06xx_start, |
| 463 | .stopN = stv06xx_stopN, |
Hans de Goede | 0158e98 | 2010-02-20 11:26:07 -0300 | [diff] [blame] | 464 | .pkt_scan = stv06xx_pkt_scan, |
| 465 | #ifdef CONFIG_INPUT |
| 466 | .int_pkt_scan = sd_int_pkt_scan, |
| 467 | #endif |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 468 | }; |
| 469 | |
| 470 | /* This function is called at probe time */ |
| 471 | static int stv06xx_config(struct gspca_dev *gspca_dev, |
| 472 | const struct usb_device_id *id) |
| 473 | { |
| 474 | struct sd *sd = (struct sd *) gspca_dev; |
| 475 | struct cam *cam; |
| 476 | |
| 477 | PDEBUG(D_PROBE, "Configuring camera"); |
| 478 | |
| 479 | cam = &gspca_dev->cam; |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 480 | sd->desc = sd_desc; |
Hans de Goede | 8668d50 | 2009-06-17 18:37:57 -0300 | [diff] [blame] | 481 | sd->bridge = id->driver_info; |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 482 | gspca_dev->sd_desc = &sd->desc; |
| 483 | |
| 484 | if (dump_bridge) |
| 485 | stv06xx_dump_bridge(sd); |
| 486 | |
Hans de Goede | 8668d50 | 2009-06-17 18:37:57 -0300 | [diff] [blame] | 487 | sd->sensor = &stv06xx_sensor_st6422; |
| 488 | if (!sd->sensor->probe(sd)) |
| 489 | return 0; |
| 490 | |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 491 | sd->sensor = &stv06xx_sensor_vv6410; |
| 492 | if (!sd->sensor->probe(sd)) |
| 493 | return 0; |
| 494 | |
| 495 | sd->sensor = &stv06xx_sensor_hdcs1x00; |
| 496 | if (!sd->sensor->probe(sd)) |
| 497 | return 0; |
| 498 | |
| 499 | sd->sensor = &stv06xx_sensor_hdcs1020; |
| 500 | if (!sd->sensor->probe(sd)) |
| 501 | return 0; |
| 502 | |
| 503 | sd->sensor = &stv06xx_sensor_pb0100; |
| 504 | if (!sd->sensor->probe(sd)) |
| 505 | return 0; |
| 506 | |
| 507 | sd->sensor = NULL; |
| 508 | return -ENODEV; |
| 509 | } |
| 510 | |
| 511 | |
| 512 | |
| 513 | /* -- module initialisation -- */ |
| 514 | static const __devinitdata struct usb_device_id device_table[] = { |
Hans de Goede | 8668d50 | 2009-06-17 18:37:57 -0300 | [diff] [blame] | 515 | /* QuickCam Express */ |
| 516 | {USB_DEVICE(0x046d, 0x0840), .driver_info = BRIDGE_STV600 }, |
| 517 | /* LEGO cam / QuickCam Web */ |
| 518 | {USB_DEVICE(0x046d, 0x0850), .driver_info = BRIDGE_STV610 }, |
| 519 | /* Dexxa WebCam USB */ |
| 520 | {USB_DEVICE(0x046d, 0x0870), .driver_info = BRIDGE_STV602 }, |
| 521 | /* QuickCam Messenger */ |
| 522 | {USB_DEVICE(0x046D, 0x08F0), .driver_info = BRIDGE_ST6422 }, |
| 523 | /* QuickCam Communicate */ |
| 524 | {USB_DEVICE(0x046D, 0x08F5), .driver_info = BRIDGE_ST6422 }, |
| 525 | /* QuickCam Messenger (new) */ |
| 526 | {USB_DEVICE(0x046D, 0x08F6), .driver_info = BRIDGE_ST6422 }, |
| 527 | /* QuickCam Messenger (new) */ |
| 528 | {USB_DEVICE(0x046D, 0x08DA), .driver_info = BRIDGE_ST6422 }, |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 529 | {} |
| 530 | }; |
| 531 | MODULE_DEVICE_TABLE(usb, device_table); |
| 532 | |
| 533 | /* -- device connect -- */ |
| 534 | static int sd_probe(struct usb_interface *intf, |
| 535 | const struct usb_device_id *id) |
| 536 | { |
| 537 | PDEBUG(D_PROBE, "Probing for a stv06xx device"); |
| 538 | return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd), |
| 539 | THIS_MODULE); |
| 540 | } |
| 541 | |
Mauro Carvalho Chehab | 8a787b4 | 2008-12-29 18:35:51 -0300 | [diff] [blame] | 542 | static void sd_disconnect(struct usb_interface *intf) |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 543 | { |
| 544 | struct gspca_dev *gspca_dev = usb_get_intfdata(intf); |
| 545 | struct sd *sd = (struct sd *) gspca_dev; |
| 546 | PDEBUG(D_PROBE, "Disconnecting the stv06xx device"); |
| 547 | |
| 548 | if (sd->sensor->disconnect) |
| 549 | sd->sensor->disconnect(sd); |
| 550 | gspca_disconnect(intf); |
| 551 | } |
| 552 | |
| 553 | static struct usb_driver sd_driver = { |
| 554 | .name = MODULE_NAME, |
| 555 | .id_table = device_table, |
| 556 | .probe = sd_probe, |
| 557 | .disconnect = sd_disconnect, |
| 558 | #ifdef CONFIG_PM |
| 559 | .suspend = gspca_suspend, |
| 560 | .resume = gspca_resume, |
| 561 | #endif |
| 562 | }; |
| 563 | |
| 564 | /* -- module insert / remove -- */ |
| 565 | static int __init sd_mod_init(void) |
| 566 | { |
Alexey Klimov | f69e952 | 2009-01-01 13:02:07 -0300 | [diff] [blame] | 567 | int ret; |
| 568 | ret = usb_register(&sd_driver); |
| 569 | if (ret < 0) |
Alexey Klimov | e6b1484 | 2009-01-01 13:04:58 -0300 | [diff] [blame] | 570 | return ret; |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 571 | PDEBUG(D_PROBE, "registered"); |
| 572 | return 0; |
| 573 | } |
| 574 | static void __exit sd_mod_exit(void) |
| 575 | { |
| 576 | usb_deregister(&sd_driver); |
| 577 | PDEBUG(D_PROBE, "deregistered"); |
| 578 | } |
| 579 | |
| 580 | module_init(sd_mod_init); |
| 581 | module_exit(sd_mod_exit); |
| 582 | |
| 583 | module_param(dump_bridge, bool, S_IRUGO | S_IWUSR); |
| 584 | MODULE_PARM_DESC(dump_bridge, "Dumps all usb bridge registers at startup"); |
| 585 | |
| 586 | module_param(dump_sensor, bool, S_IRUGO | S_IWUSR); |
| 587 | MODULE_PARM_DESC(dump_sensor, "Dumps all sensor registers at startup"); |