drivers/media/video/cx231xx/cx231xx-core.c

   1 /*
   2    cx231xx-core.c - driver for Conexant Cx23100/101/102
   3                                 USB video capture devices
   4
   5    Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
   6                                 Based on em28xx driver
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  */
  22
  23 #include <linux/init.h>
  24 #include <linux/list.h>
  25 #include <linux/module.h>
  26 #include <linux/slab.h>
  27 #include <linux/usb.h>
  28 #include <linux/vmalloc.h>
  29 #include <media/v4l2-common.h>
  30 #include <media/tuner.h>
  31
  32 #include "cx231xx.h"
  33 #include "cx231xx-reg.h"
  34
  35 /* #define ENABLE_DEBUG_ISOC_FRAMES */
  36
  37 static unsigned int core_debug;
  38 module_param(core_debug, int, 0644);
  39 MODULE_PARM_DESC(core_debug, "enable debug messages [core]");
  40
  41 #define cx231xx_coredbg(fmt, arg...) do {\
  42         if (core_debug) \
  43                 printk(KERN_INFO "%s %s :"fmt, \
  44                          dev->name, __func__ , ##arg); } while (0)
  45
  46 static unsigned int reg_debug;
  47 module_param(reg_debug, int, 0644);
  48 MODULE_PARM_DESC(reg_debug, "enable debug messages [URB reg]");
  49
  50 #define cx231xx_regdbg(fmt, arg...) do {\
  51         if (reg_debug) \
  52                 printk(KERN_INFO "%s %s :"fmt, \
  53                          dev->name, __func__ , ##arg); } while (0)
  54
  55 static int alt = CX231XX_PINOUT;
  56 module_param(alt, int, 0644);
  57 MODULE_PARM_DESC(alt, "alternate setting to use for video endpoint");
  58
  59 #define cx231xx_isocdbg(fmt, arg...) do {\
  60         if (core_debug) \
  61                 printk(KERN_INFO "%s %s :"fmt, \
  62                          dev->name, __func__ , ##arg); } while (0)
  63
  64 /*****************************************************************
  65 *             Device control list functions                                      *
  66 ******************************************************************/
  67
  68 LIST_HEAD(cx231xx_devlist);
  69 static DEFINE_MUTEX(cx231xx_devlist_mutex);
  70
  71 /*
  72  * cx231xx_realease_resources()
  73  * unregisters the v4l2,i2c and usb devices
  74  * called when the device gets disconected or at module unload
  75 */
  76 void cx231xx_remove_from_devlist(struct cx231xx *dev)
  77 {
  78         if (dev == NULL)
  79                 return;
  80         if (dev->udev == NULL)
  81                 return;
  82
  83         if (atomic_read(&dev->devlist_count) > 0) {
  84                 mutex_lock(&cx231xx_devlist_mutex);
  85                 list_del(&dev->devlist);
  86                 atomic_dec(&dev->devlist_count);
  87                 mutex_unlock(&cx231xx_devlist_mutex);
  88         }
  89 };
  90
  91 void cx231xx_add_into_devlist(struct cx231xx *dev)
  92 {
  93         mutex_lock(&cx231xx_devlist_mutex);
  94         list_add_tail(&dev->devlist, &cx231xx_devlist);
  95         atomic_inc(&dev->devlist_count);
  96         mutex_unlock(&cx231xx_devlist_mutex);
  97 };
  98
  99 static LIST_HEAD(cx231xx_extension_devlist);
 100
 101 int cx231xx_register_extension(struct cx231xx_ops *ops)
 102 {
 103         struct cx231xx *dev = NULL;
 104
 105         mutex_lock(&cx231xx_devlist_mutex);
 106         list_add_tail(&ops->next, &cx231xx_extension_devlist);
 107         list_for_each_entry(dev, &cx231xx_devlist, devlist)
 108                 ops->init(dev);
 109
 110         printk(KERN_INFO DRIVER_NAME ": %s initialized\n", ops->name);
 111         mutex_unlock(&cx231xx_devlist_mutex);
 112         return 0;
 113 }
 114 EXPORT_SYMBOL(cx231xx_register_extension);
 115
 116 void cx231xx_unregister_extension(struct cx231xx_ops *ops)
 117 {
 118         struct cx231xx *dev = NULL;
 119
 120         mutex_lock(&cx231xx_devlist_mutex);
 121         list_for_each_entry(dev, &cx231xx_devlist, devlist)
 122                 ops->fini(dev);
 123
 124
 125         printk(KERN_INFO DRIVER_NAME ": %s removed\n", ops->name);
 126         list_del(&ops->next);
 127         mutex_unlock(&cx231xx_devlist_mutex);
 128 }
 129 EXPORT_SYMBOL(cx231xx_unregister_extension);
 130
 131 void cx231xx_init_extension(struct cx231xx *dev)
 132 {
 133         struct cx231xx_ops *ops = NULL;
 134
 135         mutex_lock(&cx231xx_devlist_mutex);
 136         if (!list_empty(&cx231xx_extension_devlist)) {
 137                 list_for_each_entry(ops, &cx231xx_extension_devlist, next) {
 138                         if (ops->init)
 139                                 ops->init(dev);
 140                 }
 141         }
 142         mutex_unlock(&cx231xx_devlist_mutex);
 143 }
 144
 145 void cx231xx_close_extension(struct cx231xx *dev)
 146 {
 147         struct cx231xx_ops *ops = NULL;
 148
 149         mutex_lock(&cx231xx_devlist_mutex);
 150         if (!list_empty(&cx231xx_extension_devlist)) {
 151                 list_for_each_entry(ops, &cx231xx_extension_devlist, next) {
 152                         if (ops->fini)
 153                                 ops->fini(dev);
 154                 }
 155         }
 156         mutex_unlock(&cx231xx_devlist_mutex);
 157 }
 158
 159 /****************************************************************
 160 *               U S B related functions                         *
 161 *****************************************************************/
 162 int cx231xx_send_usb_command(struct cx231xx_i2c *i2c_bus,
 163                              struct cx231xx_i2c_xfer_data *req_data)
 164 {
 165         int status = 0;
 166         struct cx231xx *dev = i2c_bus->dev;
 167         struct VENDOR_REQUEST_IN ven_req;
 168
 169         u8 saddr_len = 0;
 170         u8 _i2c_period = 0;
 171         u8 _i2c_nostop = 0;
 172         u8 _i2c_reserve = 0;
 173
 174         /* Get the I2C period, nostop and reserve parameters */
 175         _i2c_period = i2c_bus->i2c_period;
 176         _i2c_nostop = i2c_bus->i2c_nostop;
 177         _i2c_reserve = i2c_bus->i2c_reserve;
 178
 179         saddr_len = req_data->saddr_len;
 180
 181         /* Set wValue */
 182         if (saddr_len == 1)     /* need check saddr_len == 0  */
 183                 ven_req.wValue =
 184                     req_data->
 185                     dev_addr << 9 | _i2c_period << 4 | saddr_len << 2 |
 186                     _i2c_nostop << 1 | I2C_SYNC | _i2c_reserve << 6;
 187         else
 188                 ven_req.wValue =
 189                     req_data->
 190                     dev_addr << 9 | _i2c_period << 4 | saddr_len << 2 |
 191                     _i2c_nostop << 1 | I2C_SYNC | _i2c_reserve << 6;
 192
 193         /* set channel number */
 194         if (req_data->direction & I2C_M_RD) {
 195                 /* channel number, for read,spec required channel_num +4 */
 196                 ven_req.bRequest = i2c_bus->nr + 4;
 197         } else
 198                 ven_req.bRequest = i2c_bus->nr; /* channel number,  */
 199
 200         /* set index value */
 201         switch (saddr_len) {
 202         case 0:
 203                 ven_req.wIndex = 0;     /* need check */
 204                 break;
 205         case 1:
 206                 ven_req.wIndex = (req_data->saddr_dat & 0xff);
 207                 break;
 208         case 2:
 209                 ven_req.wIndex = req_data->saddr_dat;
 210                 break;
 211         }
 212
 213         /* set wLength value */
 214         ven_req.wLength = req_data->buf_size;
 215
 216         /* set bData value */
 217         ven_req.bData = 0;
 218
 219         /* set the direction */
 220         if (req_data->direction) {
 221                 ven_req.direction = USB_DIR_IN;
 222                 memset(req_data->p_buffer, 0x00, ven_req.wLength);
 223         } else
 224                 ven_req.direction = USB_DIR_OUT;
 225
 226         /* set the buffer for read / write */
 227         ven_req.pBuff = req_data->p_buffer;
 228
 229
 230         /* call common vendor command request */
 231         status = cx231xx_send_vendor_cmd(dev, &ven_req);
 232         if (status < 0) {
 233                 cx231xx_info
 234                     ("UsbInterface::sendCommand, failed with status -%d\n",
 235                      status);
 236         }
 237
 238         return status;
 239 }
 240 EXPORT_SYMBOL_GPL(cx231xx_send_usb_command);
 241
 242 /*
 243  * cx231xx_read_ctrl_reg()
 244  * reads data from the usb device specifying bRequest and wValue
 245  */
 246 int cx231xx_read_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg,
 247                           char *buf, int len)
 248 {
 249         u8 val = 0;
 250         int ret;
 251         int pipe = usb_rcvctrlpipe(dev->udev, 0);
 252
 253         if (dev->state & DEV_DISCONNECTED)
 254                 return -ENODEV;
 255
 256         if (len > URB_MAX_CTRL_SIZE)
 257                 return -EINVAL;
 258
 259         switch (len) {
 260         case 1:
 261                 val = ENABLE_ONE_BYTE;
 262                 break;
 263         case 2:
 264                 val = ENABLE_TWE_BYTE;
 265                 break;
 266         case 3:
 267                 val = ENABLE_THREE_BYTE;
 268                 break;
 269         case 4:
 270                 val = ENABLE_FOUR_BYTE;
 271                 break;
 272         default:
 273                 val = 0xFF;     /* invalid option */
 274         }
 275
 276         if (val == 0xFF)
 277                 return -EINVAL;
 278
 279         if (reg_debug) {
 280                 cx231xx_isocdbg("(pipe 0x%08x): "
 281                                 "IN:  %02x %02x %02x %02x %02x %02x %02x %02x ",
 282                                 pipe,
 283                                 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 284                                 req, 0, val,
 285                                 reg & 0xff, reg >> 8, len & 0xff, len >> 8);
 286         }
 287
 288         mutex_lock(&dev->ctrl_urb_lock);
 289         ret = usb_control_msg(dev->udev, pipe, req,
 290                               USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 291                               val, reg, dev->urb_buf, len, HZ);
 292         if (ret < 0) {
 293                 cx231xx_isocdbg(" failed!\n");
 294                 mutex_unlock(&dev->ctrl_urb_lock);
 295                 return ret;
 296         }
 297
 298         if (len)
 299                 memcpy(buf, dev->urb_buf, len);
 300
 301         mutex_unlock(&dev->ctrl_urb_lock);
 302
 303         if (reg_debug) {
 304                 int byte;
 305
 306                 cx231xx_isocdbg("<<<");
 307                 for (byte = 0; byte < len; byte++)
 308                         cx231xx_isocdbg(" %02x", (unsigned char)buf[byte]);
 309                 cx231xx_isocdbg("\n");
 310         }
 311
 312         return ret;
 313 }
 314
 315 int cx231xx_send_vendor_cmd(struct cx231xx *dev,
 316                                 struct VENDOR_REQUEST_IN *ven_req)
 317 {
 318         int ret;
 319         int pipe = 0;
 320         int unsend_size = 0;
 321         u8 *pdata;
 322
 323         if (dev->state & DEV_DISCONNECTED)
 324                 return -ENODEV;
 325
 326         if ((ven_req->wLength > URB_MAX_CTRL_SIZE))
 327                 return -EINVAL;
 328
 329         if (ven_req->direction)
 330                 pipe = usb_rcvctrlpipe(dev->udev, 0);
 331         else
 332                 pipe = usb_sndctrlpipe(dev->udev, 0);
 333
 334         if (reg_debug) {
 335                 int byte;
 336
 337                 cx231xx_isocdbg("(pipe 0x%08x): "
 338                                 "OUT: %02x %02x %02x %04x %04x %04x >>>",
 339                                 pipe,
 340                                 ven_req->
 341                                 direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 342                                 ven_req->bRequest, 0, ven_req->wValue,
 343                                 ven_req->wIndex, ven_req->wLength);
 344
 345                 for (byte = 0; byte < ven_req->wLength; byte++)
 346                         cx231xx_isocdbg(" %02x",
 347                                         (unsigned char)ven_req->pBuff[byte]);
 348                 cx231xx_isocdbg("\n");
 349         }
 350
 351
 352 /*
 353 If the cx23102 read more than 4 bytes with i2c bus,
 354 need chop to 4 byte per request
 355 */
 356         if ((ven_req->wLength > 4) && ((ven_req->bRequest == 0x4) ||
 357                                         (ven_req->bRequest == 0x5) ||
 358                                         (ven_req->bRequest == 0x6))) {
 359                 unsend_size = 0;
 360                 pdata = ven_req->pBuff;
 361
 362
 363                 unsend_size = ven_req->wLength;
 364
 365                 mutex_lock(&dev->ctrl_urb_lock);
 366                 /* the first package*/
 367                 ven_req->wValue = ven_req->wValue & 0xFFFB;
 368                 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x2;
 369                 /*printk(KERN_INFO " !!!!! 0x%x 0x%x 0x%x 0x%x \n",
 370                         ven_req->bRequest,
 371                         ven_req->direction | USB_TYPE_VENDOR |
 372                         USB_RECIP_DEVICE,ven_req->wValue,ven_req->wIndex);*/
 373                 ret = usb_control_msg(dev->udev, pipe, ven_req->bRequest,
 374                         ven_req->
 375                         direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 376                         ven_req->wValue, ven_req->wIndex, pdata,
 377                         0x0004, HZ);
 378                 unsend_size = unsend_size - 4;
 379                 mutex_unlock(&dev->ctrl_urb_lock);
 380
 381                 /* the middle package*/
 382                 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x42;
 383                 while (unsend_size - 4 > 0) {
 384                         pdata = pdata + 4;
 385                         /*printk(KERN_INFO " !!!!! 0x%x 0x%x 0x%x 0x%x \n",
 386                                 ven_req->bRequest,
 387                                 ven_req->direction | USB_TYPE_VENDOR |
 388                                 USB_RECIP_DEVICE,
 389                                 ven_req->wValue,ven_req->wIndex);*/
 390                         mutex_lock(&dev->ctrl_urb_lock);
 391                         ret = usb_control_msg(dev->udev, pipe,
 392                                  ven_req->bRequest,
 393                                 ven_req->
 394                                 direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 395                                 ven_req->wValue, ven_req->wIndex, pdata,
 396                                 0x0004, HZ);
 397                         mutex_unlock(&dev->ctrl_urb_lock);
 398                         unsend_size = unsend_size - 4;
 399                 }
 400
 401
 402                 /* the last package*/
 403                 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x40;
 404                 pdata = pdata + 4;
 405                 /*printk(KERN_INFO " !!!!! 0x%x 0x%x 0x%x 0x%x \n",
 406                         ven_req->bRequest,
 407                         ven_req->direction | USB_TYPE_VENDOR |
 408                         USB_RECIP_DEVICE,ven_req->wValue,ven_req->wIndex);*/
 409                 mutex_lock(&dev->ctrl_urb_lock);
 410                 ret = usb_control_msg(dev->udev, pipe, ven_req->bRequest,
 411                         ven_req->
 412                         direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 413                         ven_req->wValue, ven_req->wIndex, pdata,
 414                         unsend_size, HZ);
 415                 mutex_unlock(&dev->ctrl_urb_lock);
 416                 /*printk(KERN_INFO " @@@@@ temp_buffer[0]=0x%x 0x%x 0x%x 0x%x
 417                           0x%x 0x%x\n",ven_req->pBuff[0],ven_req->pBuff[1],
 418                         ven_req->pBuff[2], ven_req->pBuff[3],ven_req->pBuff[4],
 419                         ven_req->pBuff[5]);*/
 420
 421         } else {
 422                 mutex_lock(&dev->ctrl_urb_lock);
 423                 ret = usb_control_msg(dev->udev, pipe, ven_req->bRequest,
 424                                 ven_req->
 425                                 direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 426                                 ven_req->wValue, ven_req->wIndex,
 427                                  ven_req->pBuff, ven_req->wLength, HZ);
 428                 mutex_unlock(&dev->ctrl_urb_lock);
 429
 430         }
 431
 432         return ret;
 433 }
 434
 435 /*
 436  * cx231xx_write_ctrl_reg()
 437  * sends data to the usb device, specifying bRequest
 438  */
 439 int cx231xx_write_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg, char *buf,
 440                            int len)
 441 {
 442         u8 val = 0;
 443         int ret;
 444         int pipe = usb_sndctrlpipe(dev->udev, 0);
 445
 446         if (dev->state & DEV_DISCONNECTED)
 447                 return -ENODEV;
 448
 449         if ((len < 1) || (len > URB_MAX_CTRL_SIZE))
 450                 return -EINVAL;
 451
 452         switch (len) {
 453         case 1:
 454                 val = ENABLE_ONE_BYTE;
 455                 break;
 456         case 2:
 457                 val = ENABLE_TWE_BYTE;
 458                 break;
 459         case 3:
 460                 val = ENABLE_THREE_BYTE;
 461                 break;
 462         case 4:
 463                 val = ENABLE_FOUR_BYTE;
 464                 break;
 465         default:
 466                 val = 0xFF;     /* invalid option */
 467         }
 468
 469         if (val == 0xFF)
 470                 return -EINVAL;
 471
 472         if (reg_debug) {
 473                 int byte;
 474
 475                 cx231xx_isocdbg("(pipe 0x%08x): "
 476                         "OUT: %02x %02x %02x %02x %02x %02x %02x %02x >>>",
 477                         pipe,
 478                         USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 479                         req, 0, val, reg & 0xff,
 480                         reg >> 8, len & 0xff, len >> 8);
 481
 482                 for (byte = 0; byte < len; byte++)
 483                         cx231xx_isocdbg(" %02x", (unsigned char)buf[byte]);
 484                 cx231xx_isocdbg("\n");
 485         }
 486
 487         mutex_lock(&dev->ctrl_urb_lock);
 488         memcpy(dev->urb_buf, buf, len);
 489         ret = usb_control_msg(dev->udev, pipe, req,
 490                               USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 491                               val, reg, dev->urb_buf, len, HZ);
 492         mutex_unlock(&dev->ctrl_urb_lock);
 493
 494         return ret;
 495 }
 496
 497 /****************************************************************
 498 *           USB Alternate Setting functions                     *
 499 *****************************************************************/
 500
 501 int cx231xx_set_video_alternate(struct cx231xx *dev)
 502 {
 503         int errCode, prev_alt = dev->video_mode.alt;
 504         unsigned int min_pkt_size = dev->width * 2 + 4;
 505         u32 usb_interface_index = 0;
 506
 507         /* When image size is bigger than a certain value,
 508            the frame size should be increased, otherwise, only
 509            green screen will be received.
 510          */
 511         if (dev->width * 2 * dev->height > 720 * 240 * 2)
 512                 min_pkt_size *= 2;
 513
 514         if (dev->width > 360) {
 515                 /* resolutions: 720,704,640 */
 516                 dev->video_mode.alt = 3;
 517         } else if (dev->width > 180) {
 518                 /* resolutions: 360,352,320,240 */
 519                 dev->video_mode.alt = 2;
 520         } else if (dev->width > 0) {
 521                 /* resolutions: 180,176,160,128,88 */
 522                 dev->video_mode.alt = 1;
 523         } else {
 524                 /* Change to alt0 BULK to release USB bandwidth */
 525                 dev->video_mode.alt = 0;
 526         }
 527
 528         if (dev->USE_ISO == 0)
 529                 dev->video_mode.alt = 0;
 530
 531         cx231xx_coredbg("dev->video_mode.alt= %d\n", dev->video_mode.alt);
 532
 533         /* Get the correct video interface Index */
 534         usb_interface_index =
 535             dev->current_pcb_config.hs_config_info[0].interface_info.
 536             video_index + 1;
 537
 538         if (dev->video_mode.alt != prev_alt) {
 539                 cx231xx_coredbg("minimum isoc packet size: %u (alt=%d)\n",
 540                                 min_pkt_size, dev->video_mode.alt);
 541
 542                 if (dev->video_mode.alt_max_pkt_size != NULL)
 543                         dev->video_mode.max_pkt_size =
 544                         dev->video_mode.alt_max_pkt_size[dev->video_mode.alt];
 545                 cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u\n",
 546                                 dev->video_mode.alt,
 547                                 dev->video_mode.max_pkt_size);
 548                 errCode =
 549                     usb_set_interface(dev->udev, usb_interface_index,
 550                                       dev->video_mode.alt);
 551                 if (errCode < 0) {
 552                         cx231xx_errdev
 553                             ("cannot change alt number to %d (error=%i)\n",
 554                              dev->video_mode.alt, errCode);
 555                         return errCode;
 556                 }
 557         }
 558         return 0;
 559 }
 560
 561 int cx231xx_set_alt_setting(struct cx231xx *dev, u8 index, u8 alt)
 562 {
 563         int status = 0;
 564         u32 usb_interface_index = 0;
 565         u32 max_pkt_size = 0;
 566
 567         switch (index) {
 568         case INDEX_TS1:
 569                 usb_interface_index =
 570                     dev->current_pcb_config.hs_config_info[0].interface_info.
 571                     ts1_index + 1;
 572                 dev->ts1_mode.alt = alt;
 573                 if (dev->ts1_mode.alt_max_pkt_size != NULL)
 574                         max_pkt_size = dev->ts1_mode.max_pkt_size =
 575                             dev->ts1_mode.alt_max_pkt_size[dev->ts1_mode.alt];
 576                 break;
 577         case INDEX_TS2:
 578                 usb_interface_index =
 579                     dev->current_pcb_config.hs_config_info[0].interface_info.
 580                     ts2_index + 1;
 581                 break;
 582         case INDEX_AUDIO:
 583                 usb_interface_index =
 584                     dev->current_pcb_config.hs_config_info[0].interface_info.
 585                     audio_index + 1;
 586                 dev->adev.alt = alt;
 587                 if (dev->adev.alt_max_pkt_size != NULL)
 588                         max_pkt_size = dev->adev.max_pkt_size =
 589                             dev->adev.alt_max_pkt_size[dev->adev.alt];
 590                 break;
 591         case INDEX_VIDEO:
 592                 usb_interface_index =
 593                     dev->current_pcb_config.hs_config_info[0].interface_info.
 594                     video_index + 1;
 595                 dev->video_mode.alt = alt;
 596                 if (dev->video_mode.alt_max_pkt_size != NULL)
 597                         max_pkt_size = dev->video_mode.max_pkt_size =
 598                             dev->video_mode.alt_max_pkt_size[dev->video_mode.
 599                                                              alt];
 600                 break;
 601         case INDEX_VANC:
 602                 usb_interface_index =
 603                     dev->current_pcb_config.hs_config_info[0].interface_info.
 604                     vanc_index + 1;
 605                 dev->vbi_mode.alt = alt;
 606                 if (dev->vbi_mode.alt_max_pkt_size != NULL)
 607                         max_pkt_size = dev->vbi_mode.max_pkt_size =
 608                             dev->vbi_mode.alt_max_pkt_size[dev->vbi_mode.alt];
 609                 break;
 610         case INDEX_HANC:
 611                 usb_interface_index =
 612                     dev->current_pcb_config.hs_config_info[0].interface_info.
 613                     hanc_index + 1;
 614                 dev->sliced_cc_mode.alt = alt;
 615                 if (dev->sliced_cc_mode.alt_max_pkt_size != NULL)
 616                         max_pkt_size = dev->sliced_cc_mode.max_pkt_size =
 617                             dev->sliced_cc_mode.alt_max_pkt_size[dev->
 618                                                                  sliced_cc_mode.
 619                                                                  alt];
 620                 break;
 621         default:
 622                 break;
 623         }
 624
 625         if (alt > 0 && max_pkt_size == 0) {
 626                 cx231xx_errdev
 627                 ("can't change interface %d alt no. to %d: Max. Pkt size = 0\n",
 628                 usb_interface_index, alt);
 629                 /*To workaround error number=-71 on EP0 for videograbber,
 630                  need add following codes.*/
 631                 if (dev->model != CX231XX_BOARD_CNXT_VIDEO_GRABBER)
 632                         return -1;
 633         }
 634
 635         cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u,"
 636                         "Interface = %d\n", alt, max_pkt_size,
 637                         usb_interface_index);
 638
 639         if (usb_interface_index > 0) {
 640                 status = usb_set_interface(dev->udev, usb_interface_index, alt);
 641                 if (status < 0) {
 642                         cx231xx_errdev
 643                         ("can't change interface %d alt no. to %d (err=%i)\n",
 644                         usb_interface_index, alt, status);
 645                         return status;
 646                 }
 647         }
 648
 649         return status;
 650 }
 651 EXPORT_SYMBOL_GPL(cx231xx_set_alt_setting);
 652
 653 int cx231xx_gpio_set(struct cx231xx *dev, struct cx231xx_reg_seq *gpio)
 654 {
 655         int rc = 0;
 656
 657         if (!gpio)
 658                 return rc;
 659
 660         /* Send GPIO reset sequences specified at board entry */
 661         while (gpio->sleep >= 0) {
 662                 rc = cx231xx_set_gpio_value(dev, gpio->bit, gpio->val);
 663                 if (rc < 0)
 664                         return rc;
 665
 666                 if (gpio->sleep > 0)
 667                         msleep(gpio->sleep);
 668
 669                 gpio++;
 670         }
 671         return rc;
 672 }
 673
 674 int cx231xx_demod_reset(struct cx231xx *dev)
 675 {
 676
 677         u8 status = 0;
 678         u8 value[4] = { 0, 0, 0, 0 };
 679
 680         status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
 681                                  value, 4);
 682
 683         cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
 684                         value[0], value[1], value[2], value[3]);
 685
 686         cx231xx_coredbg("Enter cx231xx_demod_reset()\n");
 687
 688                 value[1] = (u8) 0x3;
 689                 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
 690                                                 PWR_CTL_EN, value, 4);
 691                         msleep(10);
 692
 693                 value[1] = (u8) 0x0;
 694                 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
 695                                                 PWR_CTL_EN, value, 4);
 696                         msleep(10);
 697
 698                 value[1] = (u8) 0x3;
 699                 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
 700                                                 PWR_CTL_EN, value, 4);
 701                         msleep(10);
 702
 703
 704
 705         status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
 706                                  value, 4);
 707
 708         cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
 709                         value[0], value[1], value[2], value[3]);
 710
 711         return status;
 712 }
 713 EXPORT_SYMBOL_GPL(cx231xx_demod_reset);
 714 int is_fw_load(struct cx231xx *dev)
 715 {
 716         return cx231xx_check_fw(dev);
 717 }
 718 EXPORT_SYMBOL_GPL(is_fw_load);
 719
 720 int cx231xx_set_mode(struct cx231xx *dev, enum cx231xx_mode set_mode)
 721 {
 722         int errCode = 0;
 723
 724         if (dev->mode == set_mode)
 725                 return 0;
 726
 727         if (set_mode == CX231XX_SUSPEND) {
 728                 /* Set the chip in power saving mode */
 729                 dev->mode = set_mode;
 730         }
 731
 732         /* Resource is locked */
 733         if (dev->mode != CX231XX_SUSPEND)
 734                 return -EINVAL;
 735
 736         dev->mode = set_mode;
 737
 738         if (dev->mode == CX231XX_DIGITAL_MODE)/* Set Digital power mode */ {
 739         /* set AGC mode to Digital */
 740                 switch (dev->model) {
 741                 case CX231XX_BOARD_CNXT_CARRAERA:
 742                 case CX231XX_BOARD_CNXT_RDE_250:
 743                 case CX231XX_BOARD_CNXT_SHELBY:
 744                 case CX231XX_BOARD_CNXT_RDU_250:
 745                 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
 746                         break;
 747                 case CX231XX_BOARD_CNXT_RDE_253S:
 748                 case CX231XX_BOARD_CNXT_RDU_253S:
 749                 case CX231XX_BOARD_HAUPPAUGE_EXETER:
 750                 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
 751                         break;
 752                 default:
 753                         break;
 754                 }
 755         } else/* Set Analog Power mode */ {
 756         /* set AGC mode to Analog */
 757                 switch (dev->model) {
 758                 case CX231XX_BOARD_CNXT_CARRAERA:
 759                 case CX231XX_BOARD_CNXT_RDE_250:
 760                 case CX231XX_BOARD_CNXT_SHELBY:
 761                 case CX231XX_BOARD_CNXT_RDU_250:
 762                 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
 763                         break;
 764                 case CX231XX_BOARD_CNXT_RDE_253S:
 765                 case CX231XX_BOARD_CNXT_RDU_253S:
 766                 case CX231XX_BOARD_HAUPPAUGE_EXETER:
 767                 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
 768                         break;
 769                 default:
 770                         break;
 771                 }
 772         }
 773
 774         return 0;
 775 }
 776 EXPORT_SYMBOL_GPL(cx231xx_set_mode);
 777
 778 int cx231xx_ep5_bulkout(struct cx231xx *dev, u8 *firmware, u16 size)
 779 {
 780         int errCode = 0;
 781         int actlen, ret = -ENOMEM;
 782         u32 *buffer;
 783
 784 buffer = kzalloc(4096, GFP_KERNEL);
 785         if (buffer == NULL) {
 786                 cx231xx_info("out of mem\n");
 787                 return -ENOMEM;
 788         }
 789         memcpy(&buffer[0], firmware, 4096);
 790
 791         ret = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 5),
 792                                  buffer, 4096, &actlen, 2000);
 793
 794         if (ret)
 795                 cx231xx_info("bulk message failed: %d (%d/%d)", ret,
 796                                  size, actlen);
 797         else {
 798                 errCode = actlen != size ? -1 : 0;
 799         }
 800 kfree(buffer);
 801         return 0;
 802 }
 803
 804 /*****************************************************************
 805 *                URB Streaming functions                         *
 806 ******************************************************************/
 807
 808 /*
 809  * IRQ callback, called by URB callback
 810  */
 811 static void cx231xx_isoc_irq_callback(struct urb *urb)
 812 {
 813         struct cx231xx_dmaqueue *dma_q = urb->context;
 814         struct cx231xx_video_mode *vmode =
 815             container_of(dma_q, struct cx231xx_video_mode, vidq);
 816         struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
 817         int rc, i;
 818
 819         switch (urb->status) {
 820         case 0:         /* success */
 821         case -ETIMEDOUT:        /* NAK */
 822                 break;
 823         case -ECONNRESET:       /* kill */
 824         case -ENOENT:
 825         case -ESHUTDOWN:
 826                 return;
 827         default:                /* error */
 828                 cx231xx_isocdbg("urb completition error %d.\n", urb->status);
 829                 break;
 830         }
 831
 832         /* Copy data from URB */
 833         spin_lock(&dev->video_mode.slock);
 834         rc = dev->video_mode.isoc_ctl.isoc_copy(dev, urb);
 835         spin_unlock(&dev->video_mode.slock);
 836
 837         /* Reset urb buffers */
 838         for (i = 0; i < urb->number_of_packets; i++) {
 839                 urb->iso_frame_desc[i].status = 0;
 840                 urb->iso_frame_desc[i].actual_length = 0;
 841         }
 842         urb->status = 0;
 843
 844         urb->status = usb_submit_urb(urb, GFP_ATOMIC);
 845         if (urb->status) {
 846                 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
 847                                 urb->status);
 848         }
 849 }
 850 /*****************************************************************
 851 *                URB Streaming functions                         *
 852 ******************************************************************/
 853
 854 /*
 855  * IRQ callback, called by URB callback
 856  */
 857 static void cx231xx_bulk_irq_callback(struct urb *urb)
 858 {
 859         struct cx231xx_dmaqueue *dma_q = urb->context;
 860         struct cx231xx_video_mode *vmode =
 861             container_of(dma_q, struct cx231xx_video_mode, vidq);
 862         struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
 863         int rc;
 864
 865         switch (urb->status) {
 866         case 0:         /* success */
 867         case -ETIMEDOUT:        /* NAK */
 868                 break;
 869         case -ECONNRESET:       /* kill */
 870         case -ENOENT:
 871         case -ESHUTDOWN:
 872                 return;
 873         default:                /* error */
 874                 cx231xx_isocdbg("urb completition error %d.\n", urb->status);
 875                 break;
 876         }
 877
 878         /* Copy data from URB */
 879         spin_lock(&dev->video_mode.slock);
 880         rc = dev->video_mode.bulk_ctl.bulk_copy(dev, urb);
 881         spin_unlock(&dev->video_mode.slock);
 882
 883         /* Reset urb buffers */
 884         urb->status = 0;
 885
 886         urb->status = usb_submit_urb(urb, GFP_ATOMIC);
 887         if (urb->status) {
 888                 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
 889                                 urb->status);
 890         }
 891 }
 892 /*
 893  * Stop and Deallocate URBs
 894  */
 895 void cx231xx_uninit_isoc(struct cx231xx *dev)
 896 {
 897         struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
 898         struct urb *urb;
 899         int i;
 900
 901         cx231xx_isocdbg("cx231xx: called cx231xx_uninit_isoc\n");
 902
 903         dev->video_mode.isoc_ctl.nfields = -1;
 904         for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
 905                 urb = dev->video_mode.isoc_ctl.urb[i];
 906                 if (urb) {
 907                         if (!irqs_disabled())
 908                                 usb_kill_urb(urb);
 909                         else
 910                                 usb_unlink_urb(urb);
 911
 912                         if (dev->video_mode.isoc_ctl.transfer_buffer[i]) {
 913                                 usb_free_coherent(dev->udev,
 914                                                   urb->transfer_buffer_length,
 915                                                   dev->video_mode.isoc_ctl.
 916                                                   transfer_buffer[i],
 917                                                   urb->transfer_dma);
 918                         }
 919                         usb_free_urb(urb);
 920                         dev->video_mode.isoc_ctl.urb[i] = NULL;
 921                 }
 922                 dev->video_mode.isoc_ctl.transfer_buffer[i] = NULL;
 923         }
 924
 925         kfree(dev->video_mode.isoc_ctl.urb);
 926         kfree(dev->video_mode.isoc_ctl.transfer_buffer);
 927         kfree(dma_q->p_left_data);
 928
 929         dev->video_mode.isoc_ctl.urb = NULL;
 930         dev->video_mode.isoc_ctl.transfer_buffer = NULL;
 931         dev->video_mode.isoc_ctl.num_bufs = 0;
 932         dma_q->p_left_data = NULL;
 933
 934         if (dev->mode_tv == 0)
 935                 cx231xx_capture_start(dev, 0, Raw_Video);
 936         else
 937                 cx231xx_capture_start(dev, 0, TS1_serial_mode);
 938
 939
 940 }
 941 EXPORT_SYMBOL_GPL(cx231xx_uninit_isoc);
 942
 943 /*
 944  * Stop and Deallocate URBs
 945  */
 946 void cx231xx_uninit_bulk(struct cx231xx *dev)
 947 {
 948         struct urb *urb;
 949         int i;
 950
 951         cx231xx_isocdbg("cx231xx: called cx231xx_uninit_bulk\n");
 952
 953         dev->video_mode.bulk_ctl.nfields = -1;
 954         for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
 955                 urb = dev->video_mode.bulk_ctl.urb[i];
 956                 if (urb) {
 957                         if (!irqs_disabled())
 958                                 usb_kill_urb(urb);
 959                         else
 960                                 usb_unlink_urb(urb);
 961
 962                         if (dev->video_mode.bulk_ctl.transfer_buffer[i]) {
 963                                 usb_free_coherent(dev->udev,
 964                                                 urb->transfer_buffer_length,
 965                                                 dev->video_mode.isoc_ctl.
 966                                                 transfer_buffer[i],
 967                                                 urb->transfer_dma);
 968                         }
 969                         usb_free_urb(urb);
 970                         dev->video_mode.bulk_ctl.urb[i] = NULL;
 971                 }
 972                 dev->video_mode.bulk_ctl.transfer_buffer[i] = NULL;
 973         }
 974
 975         kfree(dev->video_mode.bulk_ctl.urb);
 976         kfree(dev->video_mode.bulk_ctl.transfer_buffer);
 977
 978         dev->video_mode.bulk_ctl.urb = NULL;
 979         dev->video_mode.bulk_ctl.transfer_buffer = NULL;
 980         dev->video_mode.bulk_ctl.num_bufs = 0;
 981
 982         if (dev->mode_tv == 0)
 983                 cx231xx_capture_start(dev, 0, Raw_Video);
 984         else
 985                 cx231xx_capture_start(dev, 0, TS1_serial_mode);
 986
 987
 988 }
 989 EXPORT_SYMBOL_GPL(cx231xx_uninit_bulk);
 990
 991 /*
 992  * Allocate URBs and start IRQ
 993  */
 994 int cx231xx_init_isoc(struct cx231xx *dev, int max_packets,
 995                       int num_bufs, int max_pkt_size,
 996                       int (*isoc_copy) (struct cx231xx *dev, struct urb *urb))
 997 {
 998         struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
 999         int i;
1000         int sb_size, pipe;
1001         struct urb *urb;
1002         int j, k;
1003         int rc;
1004
1005         dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
1006
1007         cx231xx_coredbg("Setting Video mux to %d\n", dev->video_input);
1008
1009         video_mux(dev, dev->video_input);
1010
1011         /* De-allocates all pending stuff */
1012         cx231xx_uninit_isoc(dev);
1013
1014         dma_q->p_left_data = kzalloc(4096, GFP_KERNEL);
1015         if (dma_q->p_left_data == NULL) {
1016                 cx231xx_info("out of mem\n");
1017                 return -ENOMEM;
1018         }
1019
1020
1021
1022         dev->video_mode.isoc_ctl.isoc_copy = isoc_copy;
1023         dev->video_mode.isoc_ctl.num_bufs = num_bufs;
1024         dma_q->pos = 0;
1025         dma_q->is_partial_line = 0;
1026         dma_q->last_sav = 0;
1027         dma_q->current_field = -1;
1028         dma_q->field1_done = 0;
1029         dma_q->lines_per_field = dev->height / 2;
1030         dma_q->bytes_left_in_line = dev->width << 1;
1031         dma_q->lines_completed = 0;
1032         dma_q->mpeg_buffer_done = 0;
1033         dma_q->left_data_count = 0;
1034         dma_q->mpeg_buffer_completed = 0;
1035         dma_q->add_ps_package_head = CX231XX_NEED_ADD_PS_PACKAGE_HEAD;
1036         dma_q->ps_head[0] = 0x00;
1037         dma_q->ps_head[1] = 0x00;
1038         dma_q->ps_head[2] = 0x01;
1039         dma_q->ps_head[3] = 0xBA;
1040         for (i = 0; i < 8; i++)
1041                 dma_q->partial_buf[i] = 0;
1042
1043         dev->video_mode.isoc_ctl.urb =
1044             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1045         if (!dev->video_mode.isoc_ctl.urb) {
1046                 cx231xx_errdev("cannot alloc memory for usb buffers\n");
1047                 return -ENOMEM;
1048         }
1049
1050         dev->video_mode.isoc_ctl.transfer_buffer =
1051             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1052         if (!dev->video_mode.isoc_ctl.transfer_buffer) {
1053                 cx231xx_errdev("cannot allocate memory for usbtransfer\n");
1054                 kfree(dev->video_mode.isoc_ctl.urb);
1055                 return -ENOMEM;
1056         }
1057
1058         dev->video_mode.isoc_ctl.max_pkt_size = max_pkt_size;
1059         dev->video_mode.isoc_ctl.buf = NULL;
1060
1061         sb_size = max_packets * dev->video_mode.isoc_ctl.max_pkt_size;
1062
1063         if (dev->mode_tv == 1)
1064                 dev->video_mode.end_point_addr = 0x81;
1065         else
1066                 dev->video_mode.end_point_addr = 0x84;
1067
1068
1069         /* allocate urbs and transfer buffers */
1070         for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1071                 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
1072                 if (!urb) {
1073                         cx231xx_err("cannot alloc isoc_ctl.urb %i\n", i);
1074                         cx231xx_uninit_isoc(dev);
1075                         return -ENOMEM;
1076                 }
1077                 dev->video_mode.isoc_ctl.urb[i] = urb;
1078
1079                 dev->video_mode.isoc_ctl.transfer_buffer[i] =
1080                     usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1081                                        &urb->transfer_dma);
1082                 if (!dev->video_mode.isoc_ctl.transfer_buffer[i]) {
1083                         cx231xx_err("unable to allocate %i bytes for transfer"
1084                                     " buffer %i%s\n",
1085                                     sb_size, i,
1086                                     in_interrupt() ? " while in int" : "");
1087                         cx231xx_uninit_isoc(dev);
1088                         return -ENOMEM;
1089                 }
1090                 memset(dev->video_mode.isoc_ctl.transfer_buffer[i], 0, sb_size);
1091
1092                 pipe =
1093                     usb_rcvisocpipe(dev->udev, dev->video_mode.end_point_addr);
1094
1095                 usb_fill_int_urb(urb, dev->udev, pipe,
1096                                  dev->video_mode.isoc_ctl.transfer_buffer[i],
1097                                  sb_size, cx231xx_isoc_irq_callback, dma_q, 1);
1098
1099                 urb->number_of_packets = max_packets;
1100                 urb->transfer_flags = URB_ISO_ASAP;
1101
1102                 k = 0;
1103                 for (j = 0; j < max_packets; j++) {
1104                         urb->iso_frame_desc[j].offset = k;
1105                         urb->iso_frame_desc[j].length =
1106                             dev->video_mode.isoc_ctl.max_pkt_size;
1107                         k += dev->video_mode.isoc_ctl.max_pkt_size;
1108                 }
1109         }
1110
1111         init_waitqueue_head(&dma_q->wq);
1112
1113         /* submit urbs and enables IRQ */
1114         for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1115                 rc = usb_submit_urb(dev->video_mode.isoc_ctl.urb[i],
1116                                     GFP_ATOMIC);
1117                 if (rc) {
1118                         cx231xx_err("submit of urb %i failed (error=%i)\n", i,
1119                                     rc);
1120                         cx231xx_uninit_isoc(dev);
1121                         return rc;
1122                 }
1123         }
1124
1125         if (dev->mode_tv == 0)
1126                 cx231xx_capture_start(dev, 1, Raw_Video);
1127         else
1128                 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1129
1130         return 0;
1131 }
1132 EXPORT_SYMBOL_GPL(cx231xx_init_isoc);
1133
1134 /*
1135  * Allocate URBs and start IRQ
1136  */
1137 int cx231xx_init_bulk(struct cx231xx *dev, int max_packets,
1138                       int num_bufs, int max_pkt_size,
1139                       int (*bulk_copy) (struct cx231xx *dev, struct urb *urb))
1140 {
1141         struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
1142         int i;
1143         int sb_size, pipe;
1144         struct urb *urb;
1145         int rc;
1146
1147         dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
1148
1149         cx231xx_coredbg("Setting Video mux to %d\n", dev->video_input);
1150
1151         video_mux(dev, dev->video_input);
1152
1153         /* De-allocates all pending stuff */
1154         cx231xx_uninit_bulk(dev);
1155
1156         dev->video_mode.bulk_ctl.bulk_copy = bulk_copy;
1157         dev->video_mode.bulk_ctl.num_bufs = num_bufs;
1158         dma_q->pos = 0;
1159         dma_q->is_partial_line = 0;
1160         dma_q->last_sav = 0;
1161         dma_q->current_field = -1;
1162         dma_q->field1_done = 0;
1163         dma_q->lines_per_field = dev->height / 2;
1164         dma_q->bytes_left_in_line = dev->width << 1;
1165         dma_q->lines_completed = 0;
1166         dma_q->mpeg_buffer_done = 0;
1167         dma_q->left_data_count = 0;
1168         dma_q->mpeg_buffer_completed = 0;
1169         dma_q->ps_head[0] = 0x00;
1170         dma_q->ps_head[1] = 0x00;
1171         dma_q->ps_head[2] = 0x01;
1172         dma_q->ps_head[3] = 0xBA;
1173         for (i = 0; i < 8; i++)
1174                 dma_q->partial_buf[i] = 0;
1175
1176         dev->video_mode.bulk_ctl.urb =
1177             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1178         if (!dev->video_mode.bulk_ctl.urb) {
1179                 cx231xx_errdev("cannot alloc memory for usb buffers\n");
1180                 return -ENOMEM;
1181         }
1182
1183         dev->video_mode.bulk_ctl.transfer_buffer =
1184             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1185         if (!dev->video_mode.bulk_ctl.transfer_buffer) {
1186                 cx231xx_errdev("cannot allocate memory for usbtransfer\n");
1187                 kfree(dev->video_mode.bulk_ctl.urb);
1188                 return -ENOMEM;
1189         }
1190
1191         dev->video_mode.bulk_ctl.max_pkt_size = max_pkt_size;
1192         dev->video_mode.bulk_ctl.buf = NULL;
1193
1194         sb_size = max_packets * dev->video_mode.bulk_ctl.max_pkt_size;
1195
1196         if (dev->mode_tv == 1)
1197                 dev->video_mode.end_point_addr = 0x81;
1198         else
1199                 dev->video_mode.end_point_addr = 0x84;
1200
1201
1202         /* allocate urbs and transfer buffers */
1203         for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1204                 urb = usb_alloc_urb(0, GFP_KERNEL);
1205                 if (!urb) {
1206                         cx231xx_err("cannot alloc bulk_ctl.urb %i\n", i);
1207                         cx231xx_uninit_bulk(dev);
1208                         return -ENOMEM;
1209                 }
1210                 dev->video_mode.bulk_ctl.urb[i] = urb;
1211                 urb->transfer_flags = 0;
1212
1213                 dev->video_mode.bulk_ctl.transfer_buffer[i] =
1214                     usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1215                                      &urb->transfer_dma);
1216                 if (!dev->video_mode.bulk_ctl.transfer_buffer[i]) {
1217                         cx231xx_err("unable to allocate %i bytes for transfer"
1218                                     " buffer %i%s\n",
1219                                     sb_size, i,
1220                                     in_interrupt() ? " while in int" : "");
1221                         cx231xx_uninit_bulk(dev);
1222                         return -ENOMEM;
1223                 }
1224                 memset(dev->video_mode.bulk_ctl.transfer_buffer[i], 0, sb_size);
1225
1226                 pipe = usb_rcvbulkpipe(dev->udev,
1227                                  dev->video_mode.end_point_addr);
1228                 usb_fill_bulk_urb(urb, dev->udev, pipe,
1229                                   dev->video_mode.bulk_ctl.transfer_buffer[i],
1230                                   sb_size, cx231xx_bulk_irq_callback, dma_q);
1231         }
1232
1233         init_waitqueue_head(&dma_q->wq);
1234
1235         /* submit urbs and enables IRQ */
1236         for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1237                 rc = usb_submit_urb(dev->video_mode.bulk_ctl.urb[i],
1238                                     GFP_ATOMIC);
1239                 if (rc) {
1240                         cx231xx_err("submit of urb %i failed (error=%i)\n", i,
1241                                     rc);
1242                         cx231xx_uninit_bulk(dev);
1243                         return rc;
1244                 }
1245         }
1246
1247         if (dev->mode_tv == 0)
1248                 cx231xx_capture_start(dev, 1, Raw_Video);
1249         else
1250                 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1251
1252         return 0;
1253 }
1254 EXPORT_SYMBOL_GPL(cx231xx_init_bulk);
1255 void cx231xx_stop_TS1(struct cx231xx *dev)
1256 {
1257         int status = 0;
1258         u8 val[4] = { 0, 0, 0, 0 };
1259
1260                         val[0] = 0x00;
1261                         val[1] = 0x03;
1262                         val[2] = 0x00;
1263                         val[3] = 0x00;
1264                         status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1265                                  TS_MODE_REG, val, 4);
1266
1267                         val[0] = 0x00;
1268                         val[1] = 0x70;
1269                         val[2] = 0x04;
1270                         val[3] = 0x00;
1271                         status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1272                                  TS1_CFG_REG, val, 4);
1273 }
1274 /* EXPORT_SYMBOL_GPL(cx231xx_stop_TS1); */
1275 void cx231xx_start_TS1(struct cx231xx *dev)
1276 {
1277         int status = 0;
1278         u8 val[4] = { 0, 0, 0, 0 };
1279
1280                         val[0] = 0x03;
1281                         val[1] = 0x03;
1282                         val[2] = 0x00;
1283                         val[3] = 0x00;
1284                         status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1285                                  TS_MODE_REG, val, 4);
1286
1287                         val[0] = 0x04;
1288                         val[1] = 0xA3;
1289                         val[2] = 0x3B;
1290                         val[3] = 0x00;
1291                         status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1292                                  TS1_CFG_REG, val, 4);
1293 }
1294 /* EXPORT_SYMBOL_GPL(cx231xx_start_TS1); */
1295 /*****************************************************************
1296 *             Device Init/UnInit functions                       *
1297 ******************************************************************/
1298 int cx231xx_dev_init(struct cx231xx *dev)
1299 {
1300         int errCode = 0;
1301
1302         /* Initialize I2C bus */
1303
1304         /* External Master 1 Bus */
1305         dev->i2c_bus[0].nr = 0;
1306         dev->i2c_bus[0].dev = dev;
1307         dev->i2c_bus[0].i2c_period = I2C_SPEED_100K;    /* 100 KHz */
1308         dev->i2c_bus[0].i2c_nostop = 0;
1309         dev->i2c_bus[0].i2c_reserve = 0;
1310
1311         /* External Master 2 Bus */
1312         dev->i2c_bus[1].nr = 1;
1313         dev->i2c_bus[1].dev = dev;
1314         dev->i2c_bus[1].i2c_period = I2C_SPEED_100K;    /* 100 KHz */
1315         dev->i2c_bus[1].i2c_nostop = 0;
1316         dev->i2c_bus[1].i2c_reserve = 0;
1317
1318         /* Internal Master 3 Bus */
1319         dev->i2c_bus[2].nr = 2;
1320         dev->i2c_bus[2].dev = dev;
1321         dev->i2c_bus[2].i2c_period = I2C_SPEED_400K;    /* 400kHz */
1322         dev->i2c_bus[2].i2c_nostop = 0;
1323         dev->i2c_bus[2].i2c_reserve = 0;
1324
1325         /* register I2C buses */
1326         cx231xx_i2c_register(&dev->i2c_bus[0]);
1327         cx231xx_i2c_register(&dev->i2c_bus[1]);
1328         cx231xx_i2c_register(&dev->i2c_bus[2]);
1329
1330         /* init hardware */
1331         /* Note : with out calling set power mode function,
1332         afe can not be set up correctly */
1333         if (dev->model == CX231XX_BOARD_CNXT_VIDEO_GRABBER) {
1334                 errCode = cx231xx_set_power_mode(dev,
1335                                  POLARIS_AVMODE_ENXTERNAL_AV);
1336                 if (errCode < 0) {
1337                         cx231xx_errdev
1338                         ("%s: Failed to set Power - errCode [%d]!\n",
1339                         __func__, errCode);
1340                         return errCode;
1341                 }
1342         } else {
1343                 errCode = cx231xx_set_power_mode(dev,
1344                                  POLARIS_AVMODE_ANALOGT_TV);
1345                 if (errCode < 0) {
1346                         cx231xx_errdev
1347                         ("%s: Failed to set Power - errCode [%d]!\n",
1348                         __func__, errCode);
1349                         return errCode;
1350                 }
1351         }
1352
1353         /* reset the Tuner */
1354         if ((dev->model == CX231XX_BOARD_CNXT_CARRAERA) ||
1355                 (dev->model == CX231XX_BOARD_CNXT_RDE_250) ||
1356                 (dev->model == CX231XX_BOARD_CNXT_SHELBY) ||
1357                 (dev->model == CX231XX_BOARD_CNXT_RDU_250))
1358                         cx231xx_gpio_set(dev, dev->board.tuner_gpio);
1359
1360         /* initialize Colibri block */
1361         errCode = cx231xx_afe_init_super_block(dev, 0x23c);
1362         if (errCode < 0) {
1363                 cx231xx_errdev
1364                     ("%s: cx231xx_afe init super block - errCode [%d]!\n",
1365                      __func__, errCode);
1366                 return errCode;
1367         }
1368         errCode = cx231xx_afe_init_channels(dev);
1369         if (errCode < 0) {
1370                 cx231xx_errdev
1371                     ("%s: cx231xx_afe init channels - errCode [%d]!\n",
1372                      __func__, errCode);
1373                 return errCode;
1374         }
1375
1376         /* Set DIF in By pass mode */
1377         errCode = cx231xx_dif_set_standard(dev, DIF_USE_BASEBAND);
1378         if (errCode < 0) {
1379                 cx231xx_errdev
1380                     ("%s: cx231xx_dif set to By pass mode - errCode [%d]!\n",
1381                      __func__, errCode);
1382                 return errCode;
1383         }
1384
1385         /* I2S block related functions */
1386         errCode = cx231xx_i2s_blk_initialize(dev);
1387         if (errCode < 0) {
1388                 cx231xx_errdev
1389                     ("%s: cx231xx_i2s block initialize - errCode [%d]!\n",
1390                      __func__, errCode);
1391                 return errCode;
1392         }
1393
1394         /* init control pins */
1395         errCode = cx231xx_init_ctrl_pin_status(dev);
1396         if (errCode < 0) {
1397                 cx231xx_errdev("%s: cx231xx_init ctrl pins - errCode [%d]!\n",
1398                                __func__, errCode);
1399                 return errCode;
1400         }
1401
1402         /* set AGC mode to Analog */
1403         switch (dev->model) {
1404         case CX231XX_BOARD_CNXT_CARRAERA:
1405         case CX231XX_BOARD_CNXT_RDE_250:
1406         case CX231XX_BOARD_CNXT_SHELBY:
1407         case CX231XX_BOARD_CNXT_RDU_250:
1408         errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
1409                 break;
1410         case CX231XX_BOARD_CNXT_RDE_253S:
1411         case CX231XX_BOARD_CNXT_RDU_253S:
1412         case CX231XX_BOARD_HAUPPAUGE_EXETER:
1413         errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
1414                 break;
1415         default:
1416                 break;
1417         }
1418         if (errCode < 0) {
1419                 cx231xx_errdev
1420                     ("%s: cx231xx_AGC mode to Analog - errCode [%d]!\n",
1421                      __func__, errCode);
1422                 return errCode;
1423         }
1424
1425         /* set all alternate settings to zero initially */
1426         cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
1427         cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1428         cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
1429         if (dev->board.has_dvb)
1430                 cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
1431
1432         /* set the I2C master port to 3 on channel 1 */
1433         if (dev->model != CX231XX_BOARD_CNXT_VIDEO_GRABBER)
1434                 errCode = cx231xx_enable_i2c_for_tuner(dev, I2C_3);
1435
1436         return errCode;
1437 }
1438 EXPORT_SYMBOL_GPL(cx231xx_dev_init);
1439
1440 void cx231xx_dev_uninit(struct cx231xx *dev)
1441 {
1442         /* Un Initialize I2C bus */
1443         cx231xx_i2c_unregister(&dev->i2c_bus[2]);
1444         cx231xx_i2c_unregister(&dev->i2c_bus[1]);
1445         cx231xx_i2c_unregister(&dev->i2c_bus[0]);
1446 }
1447 EXPORT_SYMBOL_GPL(cx231xx_dev_uninit);
1448
1449 /*****************************************************************
1450 *              G P I O related functions                         *
1451 ******************************************************************/
1452 int cx231xx_send_gpio_cmd(struct cx231xx *dev, u32 gpio_bit, u8 *gpio_val,
1453                           u8 len, u8 request, u8 direction)
1454 {
1455         int status = 0;
1456         struct VENDOR_REQUEST_IN ven_req;
1457
1458         /* Set wValue */
1459         ven_req.wValue = (u16) (gpio_bit >> 16 & 0xffff);
1460
1461         /* set request */
1462         if (!request) {
1463                 if (direction)
1464                         ven_req.bRequest = VRT_GET_GPIO;        /* 0x8 gpio */
1465                 else
1466                         ven_req.bRequest = VRT_SET_GPIO;        /* 0x9 gpio */
1467         } else {
1468                 if (direction)
1469                         ven_req.bRequest = VRT_GET_GPIE;        /* 0xa gpie */
1470                 else
1471                         ven_req.bRequest = VRT_SET_GPIE;        /* 0xb gpie */
1472         }
1473
1474         /* set index value */
1475         ven_req.wIndex = (u16) (gpio_bit & 0xffff);
1476
1477         /* set wLength value */
1478         ven_req.wLength = len;
1479
1480         /* set bData value */
1481         ven_req.bData = 0;
1482
1483         /* set the buffer for read / write */
1484         ven_req.pBuff = gpio_val;
1485
1486         /* set the direction */
1487         if (direction) {
1488                 ven_req.direction = USB_DIR_IN;
1489                 memset(ven_req.pBuff, 0x00, ven_req.wLength);
1490         } else
1491                 ven_req.direction = USB_DIR_OUT;
1492
1493
1494         /* call common vendor command request */
1495         status = cx231xx_send_vendor_cmd(dev, &ven_req);
1496         if (status < 0) {
1497                 cx231xx_info
1498                     ("UsbInterface::sendCommand, failed with status -%d\n",
1499                      status);
1500         }
1501
1502         return status;
1503 }
1504 EXPORT_SYMBOL_GPL(cx231xx_send_gpio_cmd);
1505
1506 /*****************************************************************
1507  *    C O N T R O L - Register R E A D / W R I T E functions     *
1508  *****************************************************************/
1509 int cx231xx_mode_register(struct cx231xx *dev, u16 address, u32 mode)
1510 {
1511         u8 value[4] = { 0x0, 0x0, 0x0, 0x0 };
1512         u32 tmp = 0;
1513         int status = 0;
1514
1515         status =
1516             cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, address, value, 4);
1517         if (status < 0)
1518                 return status;
1519
1520         tmp = *((u32 *) value);
1521         tmp |= mode;
1522
1523         value[0] = (u8) tmp;
1524         value[1] = (u8) (tmp >> 8);
1525         value[2] = (u8) (tmp >> 16);
1526         value[3] = (u8) (tmp >> 24);
1527
1528         status =
1529             cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, address, value, 4);
1530
1531         return status;
1532 }
1533
1534 /*****************************************************************
1535  *            I 2 C Internal C O N T R O L   functions           *
1536  *****************************************************************/
1537 int cx231xx_read_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1538                           u8 saddr_len, u32 *data, u8 data_len, int master)
1539 {
1540         int status = 0;
1541         struct cx231xx_i2c_xfer_data req_data;
1542         u8 value[64] = "0";
1543
1544         if (saddr_len == 0)
1545                 saddr = 0;
1546         else if (saddr_len == 0)
1547                 saddr &= 0xff;
1548
1549         /* prepare xfer_data struct */
1550         req_data.dev_addr = dev_addr >> 1;
1551         req_data.direction = I2C_M_RD;
1552         req_data.saddr_len = saddr_len;
1553         req_data.saddr_dat = saddr;
1554         req_data.buf_size = data_len;
1555         req_data.p_buffer = (u8 *) value;
1556
1557         /* usb send command */
1558         if (master == 0)
1559                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1560                                          &req_data);
1561         else if (master == 1)
1562                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1563                                          &req_data);
1564         else if (master == 2)
1565                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1566                                          &req_data);
1567
1568         if (status >= 0) {
1569                 /* Copy the data read back to main buffer */
1570                 if (data_len == 1)
1571                         *data = value[0];
1572                 else if (data_len == 4)
1573                         *data =
1574                             value[0] | value[1] << 8 | value[2] << 16 | value[3]
1575                             << 24;
1576                 else if (data_len > 4)
1577                         *data = value[saddr];
1578         }
1579
1580         return status;
1581 }
1582
1583 int cx231xx_write_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1584                            u8 saddr_len, u32 data, u8 data_len, int master)
1585 {
1586         int status = 0;
1587         u8 value[4] = { 0, 0, 0, 0 };
1588         struct cx231xx_i2c_xfer_data req_data;
1589
1590         value[0] = (u8) data;
1591         value[1] = (u8) (data >> 8);
1592         value[2] = (u8) (data >> 16);
1593         value[3] = (u8) (data >> 24);
1594
1595         if (saddr_len == 0)
1596                 saddr = 0;
1597         else if (saddr_len == 0)
1598                 saddr &= 0xff;
1599
1600         /* prepare xfer_data struct */
1601         req_data.dev_addr = dev_addr >> 1;
1602         req_data.direction = 0;
1603         req_data.saddr_len = saddr_len;
1604         req_data.saddr_dat = saddr;
1605         req_data.buf_size = data_len;
1606         req_data.p_buffer = value;
1607
1608         /* usb send command */
1609         if (master == 0)
1610                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1611                                  &req_data);
1612         else if (master == 1)
1613                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1614                                  &req_data);
1615         else if (master == 2)
1616                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1617                                  &req_data);
1618
1619         return status;
1620 }
1621
1622 int cx231xx_read_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1623                           u8 saddr_len, u32 *data, u8 data_len)
1624 {
1625         int status = 0;
1626         struct cx231xx_i2c_xfer_data req_data;
1627         u8 value[4] = { 0, 0, 0, 0 };
1628
1629         if (saddr_len == 0)
1630                 saddr = 0;
1631         else if (saddr_len == 0)
1632                 saddr &= 0xff;
1633
1634         /* prepare xfer_data struct */
1635         req_data.dev_addr = dev_addr >> 1;
1636         req_data.direction = I2C_M_RD;
1637         req_data.saddr_len = saddr_len;
1638         req_data.saddr_dat = saddr;
1639         req_data.buf_size = data_len;
1640         req_data.p_buffer = (u8 *) value;
1641
1642         /* usb send command */
1643         status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1644
1645         if (status >= 0) {
1646                 /* Copy the data read back to main buffer */
1647                 if (data_len == 1)
1648                         *data = value[0];
1649                 else
1650                         *data =
1651                             value[0] | value[1] << 8 | value[2] << 16 | value[3]
1652                             << 24;
1653         }
1654
1655         return status;
1656 }
1657
1658 int cx231xx_write_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1659                            u8 saddr_len, u32 data, u8 data_len)
1660 {
1661         int status = 0;
1662         u8 value[4] = { 0, 0, 0, 0 };
1663         struct cx231xx_i2c_xfer_data req_data;
1664
1665         value[0] = (u8) data;
1666         value[1] = (u8) (data >> 8);
1667         value[2] = (u8) (data >> 16);
1668         value[3] = (u8) (data >> 24);
1669
1670         if (saddr_len == 0)
1671                 saddr = 0;
1672         else if (saddr_len == 0)
1673                 saddr &= 0xff;
1674
1675         /* prepare xfer_data struct */
1676         req_data.dev_addr = dev_addr >> 1;
1677         req_data.direction = 0;
1678         req_data.saddr_len = saddr_len;
1679         req_data.saddr_dat = saddr;
1680         req_data.buf_size = data_len;
1681         req_data.p_buffer = value;
1682
1683         /* usb send command */
1684         status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1685
1686         return status;
1687 }
1688
1689 int cx231xx_reg_mask_write(struct cx231xx *dev, u8 dev_addr, u8 size,
1690                            u16 register_address, u8 bit_start, u8 bit_end,
1691                            u32 value)
1692 {
1693         int status = 0;
1694         u32 tmp;
1695         u32 mask = 0;
1696         int i;
1697
1698         if (bit_start > (size - 1) || bit_end > (size - 1))
1699                 return -1;
1700
1701         if (size == 8) {
1702                 status =
1703                     cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1704                                           &tmp, 1);
1705         } else {
1706                 status =
1707                     cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1708                                           &tmp, 4);
1709         }
1710
1711         if (status < 0)
1712                 return status;
1713
1714         mask = 1 << bit_end;
1715         for (i = bit_end; i > bit_start && i > 0; i--)
1716                 mask = mask + (1 << (i - 1));
1717
1718         value <<= bit_start;
1719
1720         if (size == 8) {
1721                 tmp &= ~mask;
1722                 tmp |= value;
1723                 tmp &= 0xff;
1724                 status =
1725                     cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1726                                            tmp, 1);
1727         } else {
1728                 tmp &= ~mask;
1729                 tmp |= value;
1730                 status =
1731                     cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1732                                            tmp, 4);
1733         }
1734
1735         return status;
1736 }
1737
1738 int cx231xx_read_modify_write_i2c_dword(struct cx231xx *dev, u8 dev_addr,
1739                                         u16 saddr, u32 mask, u32 value)
1740 {
1741         u32 temp;
1742         int status = 0;
1743
1744         status = cx231xx_read_i2c_data(dev, dev_addr, saddr, 2, &temp, 4);
1745
1746         if (status < 0)
1747                 return status;
1748
1749         temp &= ~mask;
1750         temp |= value;
1751
1752         status = cx231xx_write_i2c_data(dev, dev_addr, saddr, 2, temp, 4);
1753
1754         return status;
1755 }
1756
1757 u32 cx231xx_set_field(u32 field_mask, u32 data)
1758 {
1759         u32 temp;
1760
1761         for (temp = field_mask; (temp & 1) == 0; temp >>= 1)
1762                 data <<= 1;
1763
1764         return data;
1765 }