mars.c revision 012d6b029ec17f45374303bbdccd0bc206725751
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 MODULE_NAME "mars" 23 24#include "gspca.h" 25#include "jpeg.h" 26 27MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>"); 28MODULE_DESCRIPTION("GSPCA/Mars USB Camera Driver"); 29MODULE_LICENSE("GPL"); 30 31/* specific webcam descriptor */ 32struct sd { 33 struct gspca_dev gspca_dev; /* !! must be the first item */ 34 35 char qindex; 36}; 37 38/* V4L2 controls supported by the driver */ 39static struct ctrl sd_ctrls[] = { 40}; 41 42static struct v4l2_pix_format vga_mode[] = { 43 {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE, 44 .bytesperline = 320, 45 .sizeimage = 320 * 240 * 3 / 8 + 589, 46 .colorspace = V4L2_COLORSPACE_JPEG, 47 .priv = 2}, 48 {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE, 49 .bytesperline = 640, 50 .sizeimage = 640 * 480 * 3 / 8 + 590, 51 .colorspace = V4L2_COLORSPACE_JPEG, 52 .priv = 1}, 53}; 54 55/* MI Register table //elvis */ 56enum { 57 REG_HW_MI_0, 58 REG_HW_MI_1, 59 REG_HW_MI_2, 60 REG_HW_MI_3, 61 REG_HW_MI_4, 62 REG_HW_MI_5, 63 REG_HW_MI_6, 64 REG_HW_MI_7, 65 REG_HW_MI_9 = 0x09, 66 REG_HW_MI_B = 0x0B, 67 REG_HW_MI_C, 68 REG_HW_MI_D, 69 REG_HW_MI_1E = 0x1E, 70 REG_HW_MI_20 = 0x20, 71 REG_HW_MI_2B = 0x2B, 72 REG_HW_MI_2C, 73 REG_HW_MI_2D, 74 REG_HW_MI_2E, 75 REG_HW_MI_35 = 0x35, 76 REG_HW_MI_5F = 0x5f, 77 REG_HW_MI_60, 78 REG_HW_MI_61, 79 REG_HW_MI_62, 80 REG_HW_MI_63, 81 REG_HW_MI_64, 82 REG_HW_MI_F1 = 0xf1, 83 ATTR_TOTAL_MI_REG = 0xf2 84}; 85 86/* the bytes to write are in gspca_dev->usb_buf */ 87static int reg_w(struct gspca_dev *gspca_dev, 88 __u16 index, int len) 89{ 90 int rc; 91 92 rc = usb_control_msg(gspca_dev->dev, 93 usb_sndbulkpipe(gspca_dev->dev, 4), 94 0x12, 95 0xc8, /* ?? */ 96 0, /* value */ 97 index, gspca_dev->usb_buf, len, 500); 98 if (rc < 0) 99 PDEBUG(D_ERR, "reg write [%02x] error %d", index, rc); 100 return rc; 101} 102 103static int reg_w_buf(struct gspca_dev *gspca_dev, 104 __u16 index, __u8 *buf, int len) 105{ 106 int rc; 107 108 rc = usb_control_msg(gspca_dev->dev, 109 usb_sndbulkpipe(gspca_dev->dev, 4), 110 0x12, 111 0xc8, /* ?? */ 112 0, /* value */ 113 index, buf, len, 500); 114 if (rc < 0) 115 PDEBUG(D_ERR, "reg write [%02x] error %d", index, rc); 116 return rc; 117} 118 119static void bulk_w(struct gspca_dev *gspca_dev, 120 __u16 *pch, 121 __u16 Address) 122{ 123 gspca_dev->usb_buf[0] = 0x1f; 124 gspca_dev->usb_buf[1] = 0; /* control byte */ 125 gspca_dev->usb_buf[2] = Address; 126 gspca_dev->usb_buf[3] = *pch >> 8; /* high byte */ 127 gspca_dev->usb_buf[4] = *pch; /* low byte */ 128 129 reg_w(gspca_dev, Address, 5); 130} 131 132/* this function is called at probe time */ 133static int sd_config(struct gspca_dev *gspca_dev, 134 const struct usb_device_id *id) 135{ 136 struct sd *sd = (struct sd *) gspca_dev; 137 struct cam *cam; 138 139 cam = &gspca_dev->cam; 140 cam->epaddr = 0x01; 141 cam->cam_mode = vga_mode; 142 cam->nmodes = sizeof vga_mode / sizeof vga_mode[0]; 143 sd->qindex = 1; /* set the quantization table */ 144 return 0; 145} 146 147/* this function is called at probe and resume time */ 148static int sd_init(struct gspca_dev *gspca_dev) 149{ 150 return 0; 151} 152 153static void sd_start(struct gspca_dev *gspca_dev) 154{ 155 int err_code; 156 __u8 *data; 157 __u16 *MI_buf; 158 int h_size, v_size; 159 int intpipe; 160 161 PDEBUG(D_STREAM, "camera start, iface %d, alt 8", gspca_dev->iface); 162 if (usb_set_interface(gspca_dev->dev, gspca_dev->iface, 8) < 0) { 163 PDEBUG(D_ERR|D_STREAM, "Set packet size: set interface error"); 164 return; 165 } 166 167 data = gspca_dev->usb_buf; 168 data[0] = 0x01; /* address */ 169 data[1] = 0x01; 170 171 err_code = reg_w(gspca_dev, data[0], 2); 172 if (err_code < 0) 173 return; 174 175 /* 176 Initialize the MR97113 chip register 177 */ 178 data = kmalloc(16, GFP_KERNEL); 179 data[0] = 0x00; /* address */ 180 data[1] = 0x0c | 0x01; /* reg 0 */ 181 data[2] = 0x01; /* reg 1 */ 182 h_size = gspca_dev->width; 183 v_size = gspca_dev->height; 184 data[3] = h_size / 8; /* h_size , reg 2 */ 185 data[4] = v_size / 8; /* v_size , reg 3 */ 186 data[5] = 0x30; /* reg 4, MI, PAS5101 : 187 * 0x30 for 24mhz , 0x28 for 12mhz */ 188 data[6] = 4; /* reg 5, H start */ 189 data[7] = 0xc0; /* reg 6, gamma 1.5 */ 190 data[8] = 3; /* reg 7, V start */ 191/* if (h_size == 320 ) */ 192/* data[9]= 0x56; * reg 8, 24MHz, 2:1 scale down */ 193/* else */ 194 data[9] = 0x52; /* reg 8, 24MHz, no scale down */ 195 data[10] = 0x5d; /* reg 9, I2C device address 196 * [for PAS5101 (0x40)] [for MI (0x5d)] */ 197 198 err_code = reg_w_buf(gspca_dev, data[0], data, 11); 199 kfree(data); 200 if (err_code < 0) 201 return; 202 203 data = gspca_dev->usb_buf; 204 data[0] = 0x23; /* address */ 205 data[1] = 0x09; /* reg 35, append frame header */ 206 207 err_code = reg_w(gspca_dev, data[0], 2); 208 if (err_code < 0) 209 return; 210 211 data[0] = 0x3c; /* address */ 212/* if (gspca_dev->width == 1280) */ 213/* data[1] = 200; * reg 60, pc-cam frame size 214 * (unit: 4KB) 800KB */ 215/* else */ 216 data[1] = 50; /* 50 reg 60, pc-cam frame size 217 * (unit: 4KB) 200KB */ 218 err_code = reg_w(gspca_dev, data[0], 2); 219 if (err_code < 0) 220 return; 221 222 if (0) { /* fixed dark-gain */ 223 data[1] = 0; /* reg 94, Y Gain (1.75) */ 224 data[2] = 0; /* reg 95, UV Gain (1.75) */ 225 data[3] = 0x3f; /* reg 96, Y Gain/UV Gain/disable 226 * auto dark-gain */ 227 data[4] = 0; /* reg 97, set fixed dark level */ 228 data[5] = 0; /* reg 98, don't care */ 229 } else { /* auto dark-gain */ 230 data[1] = 0; /* reg 94, Y Gain (auto) */ 231 data[2] = 0; /* reg 95, UV Gain (1.75) */ 232 data[3] = 0x78; /* reg 96, Y Gain/UV Gain/disable 233 * auto dark-gain */ 234 switch (gspca_dev->width) { 235/* case 1280: */ 236/* data[4] = 154; 237 * reg 97, %3 shadow point (unit: 256 pixel) */ 238/* data[5] = 51; 239 * reg 98, %1 highlight point 240 * (uint: 256 pixel) */ 241/* break; */ 242 default: 243/* case 640: */ 244 data[4] = 36; /* reg 97, %3 shadow point 245 * (unit: 256 pixel) */ 246 data[5] = 12; /* reg 98, %1 highlight point 247 * (uint: 256 pixel) */ 248 break; 249 case 320: 250 data[4] = 9; /* reg 97, %3 shadow point 251 * (unit: 256 pixel) */ 252 data[5] = 3; /* reg 98, %1 highlight point 253 * (uint: 256 pixel) */ 254 break; 255 } 256 } 257 /* auto dark-gain */ 258 data[0] = 0x5e; /* address */ 259 260 err_code = reg_w(gspca_dev, data[0], 6); 261 if (err_code < 0) 262 return; 263 264 data[0] = 0x67; 265 data[1] = 0x13; /* reg 103, first pixel B, disable sharpness */ 266 err_code = reg_w(gspca_dev, data[0], 2); 267 if (err_code < 0) 268 return; 269 270 /* 271 * initialize the value of MI sensor... 272 */ 273 MI_buf = kzalloc(ATTR_TOTAL_MI_REG * sizeof *MI_buf, GFP_KERNEL); 274 MI_buf[REG_HW_MI_1] = 0x000a; 275 MI_buf[REG_HW_MI_2] = 0x000c; 276 MI_buf[REG_HW_MI_3] = 0x0405; 277 MI_buf[REG_HW_MI_4] = 0x0507; 278 /* mi_Attr_Reg_[REG_HW_MI_5] = 0x01ff;//13 */ 279 MI_buf[REG_HW_MI_5] = 0x0013; /* 13 */ 280 MI_buf[REG_HW_MI_6] = 0x001f; /* vertical blanking */ 281 /* mi_Attr_Reg_[REG_HW_MI_6] = 0x0400; // vertical blanking */ 282 MI_buf[REG_HW_MI_7] = 0x0002; 283 /* mi_Attr_Reg_[REG_HW_MI_9] = 0x015f; */ 284 /* mi_Attr_Reg_[REG_HW_MI_9] = 0x030f; */ 285 MI_buf[REG_HW_MI_9] = 0x0374; 286 MI_buf[REG_HW_MI_B] = 0x0000; 287 MI_buf[REG_HW_MI_C] = 0x0000; 288 MI_buf[REG_HW_MI_D] = 0x0000; 289 MI_buf[REG_HW_MI_1E] = 0x8000; 290/* mi_Attr_Reg_[REG_HW_MI_20] = 0x1104; */ 291 MI_buf[REG_HW_MI_20] = 0x1104; /* 0x111c; */ 292 MI_buf[REG_HW_MI_2B] = 0x0008; 293/* mi_Attr_Reg_[REG_HW_MI_2C] = 0x000f; */ 294 MI_buf[REG_HW_MI_2C] = 0x001f; /* lita suggest */ 295 MI_buf[REG_HW_MI_2D] = 0x0008; 296 MI_buf[REG_HW_MI_2E] = 0x0008; 297 MI_buf[REG_HW_MI_35] = 0x0051; 298 MI_buf[REG_HW_MI_5F] = 0x0904; /* fail to write */ 299 MI_buf[REG_HW_MI_60] = 0x0000; 300 MI_buf[REG_HW_MI_61] = 0x0000; 301 MI_buf[REG_HW_MI_62] = 0x0498; 302 MI_buf[REG_HW_MI_63] = 0x0000; 303 MI_buf[REG_HW_MI_64] = 0x0000; 304 MI_buf[REG_HW_MI_F1] = 0x0001; 305 /* changing while setting up the different value of dx/dy */ 306 307 if (gspca_dev->width != 1280) { 308 MI_buf[0x01] = 0x010a; 309 MI_buf[0x02] = 0x014c; 310 MI_buf[0x03] = 0x01e5; 311 MI_buf[0x04] = 0x0287; 312 } 313 MI_buf[0x20] = 0x1104; 314 315 bulk_w(gspca_dev, MI_buf + 1, 1); 316 bulk_w(gspca_dev, MI_buf + 2, 2); 317 bulk_w(gspca_dev, MI_buf + 3, 3); 318 bulk_w(gspca_dev, MI_buf + 4, 4); 319 bulk_w(gspca_dev, MI_buf + 5, 5); 320 bulk_w(gspca_dev, MI_buf + 6, 6); 321 bulk_w(gspca_dev, MI_buf + 7, 7); 322 bulk_w(gspca_dev, MI_buf + 9, 9); 323 bulk_w(gspca_dev, MI_buf + 0x0b, 0x0b); 324 bulk_w(gspca_dev, MI_buf + 0x0c, 0x0c); 325 bulk_w(gspca_dev, MI_buf + 0x0d, 0x0d); 326 bulk_w(gspca_dev, MI_buf + 0x1e, 0x1e); 327 bulk_w(gspca_dev, MI_buf + 0x20, 0x20); 328 bulk_w(gspca_dev, MI_buf + 0x2b, 0x2b); 329 bulk_w(gspca_dev, MI_buf + 0x2c, 0x2c); 330 bulk_w(gspca_dev, MI_buf + 0x2d, 0x2d); 331 bulk_w(gspca_dev, MI_buf + 0x2e, 0x2e); 332 bulk_w(gspca_dev, MI_buf + 0x35, 0x35); 333 bulk_w(gspca_dev, MI_buf + 0x5f, 0x5f); 334 bulk_w(gspca_dev, MI_buf + 0x60, 0x60); 335 bulk_w(gspca_dev, MI_buf + 0x61, 0x61); 336 bulk_w(gspca_dev, MI_buf + 0x62, 0x62); 337 bulk_w(gspca_dev, MI_buf + 0x63, 0x63); 338 bulk_w(gspca_dev, MI_buf + 0x64, 0x64); 339 bulk_w(gspca_dev, MI_buf + 0xf1, 0xf1); 340 kfree(MI_buf); 341 342 intpipe = usb_sndintpipe(gspca_dev->dev, 0); 343 err_code = usb_clear_halt(gspca_dev->dev, intpipe); 344 345 data[0] = 0x00; 346 data[1] = 0x4d; /* ISOC transfering enable... */ 347 reg_w(gspca_dev, data[0], 2); 348} 349 350static void sd_stopN(struct gspca_dev *gspca_dev) 351{ 352 int result; 353 354 gspca_dev->usb_buf[0] = 1; 355 gspca_dev->usb_buf[1] = 0; 356 result = reg_w(gspca_dev, gspca_dev->usb_buf[0], 2); 357 if (result < 0) 358 PDEBUG(D_ERR, "Camera Stop failed"); 359} 360 361static void sd_pkt_scan(struct gspca_dev *gspca_dev, 362 struct gspca_frame *frame, /* target */ 363 __u8 *data, /* isoc packet */ 364 int len) /* iso packet length */ 365{ 366 struct sd *sd = (struct sd *) gspca_dev; 367 int p; 368 369 if (len < 6) { 370/* gspca_dev->last_packet_type = DISCARD_PACKET; */ 371 return; 372 } 373 for (p = 0; p < len - 6; p++) { 374 if (data[0 + p] == 0xff 375 && data[1 + p] == 0xff 376 && data[2 + p] == 0x00 377 && data[3 + p] == 0xff 378 && data[4 + p] == 0x96) { 379 if (data[5 + p] == 0x64 380 || data[5 + p] == 0x65 381 || data[5 + p] == 0x66 382 || data[5 + p] == 0x67) { 383 PDEBUG(D_PACK, "sof offset: %d leng: %d", 384 p, len); 385 frame = gspca_frame_add(gspca_dev, LAST_PACKET, 386 frame, data, 0); 387 388 /* put the JPEG header */ 389 jpeg_put_header(gspca_dev, frame, 390 sd->qindex, 0x21); 391 data += 16; 392 len -= 16; 393 break; 394 } 395 } 396 } 397 gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len); 398} 399 400/* sub-driver description */ 401static const struct sd_desc sd_desc = { 402 .name = MODULE_NAME, 403 .ctrls = sd_ctrls, 404 .nctrls = ARRAY_SIZE(sd_ctrls), 405 .config = sd_config, 406 .init = sd_init, 407 .start = sd_start, 408 .stopN = sd_stopN, 409 .pkt_scan = sd_pkt_scan, 410}; 411 412/* -- module initialisation -- */ 413static const __devinitdata 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#endif 436}; 437 438/* -- module insert / remove -- */ 439static int __init sd_mod_init(void) 440{ 441 if (usb_register(&sd_driver) < 0) 442 return -1; 443 PDEBUG(D_PROBE, "registered"); 444 return 0; 445} 446static void __exit sd_mod_exit(void) 447{ 448 usb_deregister(&sd_driver); 449 PDEBUG(D_PROBE, "deregistered"); 450} 451 452module_init(sd_mod_init); 453module_exit(sd_mod_exit); 454