drivers/media/usb/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 "cx231xx.h"
  24 #include <linux/init.h>
  25 #include <linux/list.h>
  26 #include <linux/module.h>
  27 #include <linux/slab.h>
  28 #include <linux/vmalloc.h>
  29 #include <media/v4l2-common.h>
  30 #include <media/tuner.h>
  31
  32 #include "cx231xx-reg.h"
  33
  34 /* #define ENABLE_DEBUG_ISOC_FRAMES */
  35
  36 static unsigned int core_debug;
  37 module_param(core_debug, int, 0644);
  38 MODULE_PARM_DESC(core_debug, "enable debug messages [core]");
  39
  40 #define cx231xx_coredbg(fmt, arg...) do {\
  41         if (core_debug) \
  42                 printk(KERN_INFO "%s %s :"fmt, \
  43                          dev->name, __func__ , ##arg); } while (0)
  44
  45 static unsigned int reg_debug;
  46 module_param(reg_debug, int, 0644);
  47 MODULE_PARM_DESC(reg_debug, "enable debug messages [URB reg]");
  48
  49 static int alt = CX231XX_PINOUT;
  50 module_param(alt, int, 0644);
  51 MODULE_PARM_DESC(alt, "alternate setting to use for video endpoint");
  52
  53 #define cx231xx_isocdbg(fmt, arg...) do {\
  54         if (core_debug) \
  55                 printk(KERN_INFO "%s %s :"fmt, \
  56                          dev->name, __func__ , ##arg); } while (0)
  57
  58 /*****************************************************************
  59 *             Device control list functions                                      *
  60 ******************************************************************/
  61
  62 LIST_HEAD(cx231xx_devlist);
  63 static DEFINE_MUTEX(cx231xx_devlist_mutex);
  64
  65 /*
  66  * cx231xx_realease_resources()
  67  * unregisters the v4l2,i2c and usb devices
  68  * called when the device gets disconected or at module unload
  69 */
  70 void cx231xx_remove_from_devlist(struct cx231xx *dev)
  71 {
  72         if (dev == NULL)
  73                 return;
  74         if (dev->udev == NULL)
  75                 return;
  76
  77         if (atomic_read(&dev->devlist_count) > 0) {
  78                 mutex_lock(&cx231xx_devlist_mutex);
  79                 list_del(&dev->devlist);
  80                 atomic_dec(&dev->devlist_count);
  81                 mutex_unlock(&cx231xx_devlist_mutex);
  82         }
  83 };
  84
  85 void cx231xx_add_into_devlist(struct cx231xx *dev)
  86 {
  87         mutex_lock(&cx231xx_devlist_mutex);
  88         list_add_tail(&dev->devlist, &cx231xx_devlist);
  89         atomic_inc(&dev->devlist_count);
  90         mutex_unlock(&cx231xx_devlist_mutex);
  91 };
  92
  93 static LIST_HEAD(cx231xx_extension_devlist);
  94
  95 int cx231xx_register_extension(struct cx231xx_ops *ops)
  96 {
  97         struct cx231xx *dev = NULL;
  98
  99         mutex_lock(&cx231xx_devlist_mutex);
 100         list_add_tail(&ops->next, &cx231xx_extension_devlist);
 101         list_for_each_entry(dev, &cx231xx_devlist, devlist) {
 102                 ops->init(dev);
 103                 dev_info(dev->dev, "%s initialized\n", ops->name);
 104         }
 105         mutex_unlock(&cx231xx_devlist_mutex);
 106         return 0;
 107 }
 108 EXPORT_SYMBOL(cx231xx_register_extension);
 109
 110 void cx231xx_unregister_extension(struct cx231xx_ops *ops)
 111 {
 112         struct cx231xx *dev = NULL;
 113
 114         mutex_lock(&cx231xx_devlist_mutex);
 115         list_for_each_entry(dev, &cx231xx_devlist, devlist) {
 116                 ops->fini(dev);
 117                 dev_info(dev->dev, "%s removed\n", ops->name);
 118         }
 119
 120         list_del(&ops->next);
 121         mutex_unlock(&cx231xx_devlist_mutex);
 122 }
 123 EXPORT_SYMBOL(cx231xx_unregister_extension);
 124
 125 void cx231xx_init_extension(struct cx231xx *dev)
 126 {
 127         struct cx231xx_ops *ops = NULL;
 128
 129         mutex_lock(&cx231xx_devlist_mutex);
 130         if (!list_empty(&cx231xx_extension_devlist)) {
 131                 list_for_each_entry(ops, &cx231xx_extension_devlist, next) {
 132                         if (ops->init)
 133                                 ops->init(dev);
 134                 }
 135         }
 136         mutex_unlock(&cx231xx_devlist_mutex);
 137 }
 138
 139 void cx231xx_close_extension(struct cx231xx *dev)
 140 {
 141         struct cx231xx_ops *ops = NULL;
 142
 143         mutex_lock(&cx231xx_devlist_mutex);
 144         if (!list_empty(&cx231xx_extension_devlist)) {
 145                 list_for_each_entry(ops, &cx231xx_extension_devlist, next) {
 146                         if (ops->fini)
 147                                 ops->fini(dev);
 148                 }
 149         }
 150         mutex_unlock(&cx231xx_devlist_mutex);
 151 }
 152
 153 /****************************************************************
 154 *               U S B related functions                         *
 155 *****************************************************************/
 156 int cx231xx_send_usb_command(struct cx231xx_i2c *i2c_bus,
 157                              struct cx231xx_i2c_xfer_data *req_data)
 158 {
 159         int status = 0;
 160         struct cx231xx *dev = i2c_bus->dev;
 161         struct VENDOR_REQUEST_IN ven_req;
 162
 163         u8 saddr_len = 0;
 164         u8 _i2c_period = 0;
 165         u8 _i2c_nostop = 0;
 166         u8 _i2c_reserve = 0;
 167
 168         if (dev->state & DEV_DISCONNECTED)
 169                 return -ENODEV;
 170
 171         /* Get the I2C period, nostop and reserve parameters */
 172         _i2c_period = i2c_bus->i2c_period;
 173         _i2c_nostop = i2c_bus->i2c_nostop;
 174         _i2c_reserve = i2c_bus->i2c_reserve;
 175
 176         saddr_len = req_data->saddr_len;
 177
 178         /* Set wValue */
 179         ven_req.wValue = (req_data->dev_addr << 9 | _i2c_period << 4 |
 180                           saddr_len << 2 | _i2c_nostop << 1 | I2C_SYNC |
 181                           _i2c_reserve << 6);
 182
 183         /* set channel number */
 184         if (req_data->direction & I2C_M_RD) {
 185                 /* channel number, for read,spec required channel_num +4 */
 186                 ven_req.bRequest = i2c_bus->nr + 4;
 187         } else
 188                 ven_req.bRequest = i2c_bus->nr; /* channel number,  */
 189
 190         /* set index value */
 191         switch (saddr_len) {
 192         case 0:
 193                 ven_req.wIndex = 0;     /* need check */
 194                 break;
 195         case 1:
 196                 ven_req.wIndex = (req_data->saddr_dat & 0xff);
 197                 break;
 198         case 2:
 199                 ven_req.wIndex = req_data->saddr_dat;
 200                 break;
 201         }
 202
 203         /* set wLength value */
 204         ven_req.wLength = req_data->buf_size;
 205
 206         /* set bData value */
 207         ven_req.bData = 0;
 208
 209         /* set the direction */
 210         if (req_data->direction) {
 211                 ven_req.direction = USB_DIR_IN;
 212                 memset(req_data->p_buffer, 0x00, ven_req.wLength);
 213         } else
 214                 ven_req.direction = USB_DIR_OUT;
 215
 216         /* set the buffer for read / write */
 217         ven_req.pBuff = req_data->p_buffer;
 218
 219
 220         /* call common vendor command request */
 221         status = cx231xx_send_vendor_cmd(dev, &ven_req);
 222         if (status < 0 && !dev->i2c_scan_running) {
 223                 dev_err(dev->dev, "%s: failed with status -%d\n",
 224                         __func__, status);
 225         }
 226
 227         return status;
 228 }
 229 EXPORT_SYMBOL_GPL(cx231xx_send_usb_command);
 230
 231 /*
 232  * Sends/Receives URB control messages, assuring to use a kalloced buffer
 233  * for all operations (dev->urb_buf), to avoid using stacked buffers, as
 234  * they aren't safe for usage with USB, due to DMA restrictions.
 235  * Also implements the debug code for control URB's.
 236  */
 237 static int __usb_control_msg(struct cx231xx *dev, unsigned int pipe,
 238         __u8 request, __u8 requesttype, __u16 value, __u16 index,
 239         void *data, __u16 size, int timeout)
 240 {
 241         int rc, i;
 242
 243         if (reg_debug) {
 244                 printk(KERN_DEBUG "%s: (pipe 0x%08x): "
 245                                 "%s:  %02x %02x %02x %02x %02x %02x %02x %02x ",
 246                                 dev->name,
 247                                 pipe,
 248                                 (requesttype & USB_DIR_IN) ? "IN" : "OUT",
 249                                 requesttype,
 250                                 request,
 251                                 value & 0xff, value >> 8,
 252                                 index & 0xff, index >> 8,
 253                                 size & 0xff, size >> 8);
 254                 if (!(requesttype & USB_DIR_IN)) {
 255                         printk(KERN_CONT ">>>");
 256                         for (i = 0; i < size; i++)
 257                                 printk(KERN_CONT " %02x",
 258                                        ((unsigned char *)data)[i]);
 259                 }
 260         }
 261
 262         /* Do the real call to usb_control_msg */
 263         mutex_lock(&dev->ctrl_urb_lock);
 264         if (!(requesttype & USB_DIR_IN) && size)
 265                 memcpy(dev->urb_buf, data, size);
 266         rc = usb_control_msg(dev->udev, pipe, request, requesttype, value,
 267                              index, dev->urb_buf, size, timeout);
 268         if ((requesttype & USB_DIR_IN) && size)
 269                 memcpy(data, dev->urb_buf, size);
 270         mutex_unlock(&dev->ctrl_urb_lock);
 271
 272         if (reg_debug) {
 273                 if (unlikely(rc < 0)) {
 274                         printk(KERN_CONT "FAILED!\n");
 275                         return rc;
 276                 }
 277
 278                 if ((requesttype & USB_DIR_IN)) {
 279                         printk(KERN_CONT "<<<");
 280                         for (i = 0; i < size; i++)
 281                                 printk(KERN_CONT " %02x",
 282                                        ((unsigned char *)data)[i]);
 283                 }
 284                 printk(KERN_CONT "\n");
 285         }
 286
 287         return rc;
 288 }
 289
 290
 291 /*
 292  * cx231xx_read_ctrl_reg()
 293  * reads data from the usb device specifying bRequest and wValue
 294  */
 295 int cx231xx_read_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg,
 296                           char *buf, int len)
 297 {
 298         u8 val = 0;
 299         int ret;
 300         int pipe = usb_rcvctrlpipe(dev->udev, 0);
 301
 302         if (dev->state & DEV_DISCONNECTED)
 303                 return -ENODEV;
 304
 305         if (len > URB_MAX_CTRL_SIZE)
 306                 return -EINVAL;
 307
 308         switch (len) {
 309         case 1:
 310                 val = ENABLE_ONE_BYTE;
 311                 break;
 312         case 2:
 313                 val = ENABLE_TWE_BYTE;
 314                 break;
 315         case 3:
 316                 val = ENABLE_THREE_BYTE;
 317                 break;
 318         case 4:
 319                 val = ENABLE_FOUR_BYTE;
 320                 break;
 321         default:
 322                 val = 0xFF;     /* invalid option */
 323         }
 324
 325         if (val == 0xFF)
 326                 return -EINVAL;
 327
 328         ret = __usb_control_msg(dev, pipe, req,
 329                               USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 330                               val, reg, buf, len, HZ);
 331         return ret;
 332 }
 333
 334 int cx231xx_send_vendor_cmd(struct cx231xx *dev,
 335                                 struct VENDOR_REQUEST_IN *ven_req)
 336 {
 337         int ret;
 338         int pipe = 0;
 339         int unsend_size = 0;
 340         u8 *pdata;
 341
 342         if (dev->state & DEV_DISCONNECTED)
 343                 return -ENODEV;
 344
 345         if ((ven_req->wLength > URB_MAX_CTRL_SIZE))
 346                 return -EINVAL;
 347
 348         if (ven_req->direction)
 349                 pipe = usb_rcvctrlpipe(dev->udev, 0);
 350         else
 351                 pipe = usb_sndctrlpipe(dev->udev, 0);
 352
 353         /*
 354          * If the cx23102 read more than 4 bytes with i2c bus,
 355          * need chop to 4 byte per request
 356          */
 357         if ((ven_req->wLength > 4) && ((ven_req->bRequest == 0x4) ||
 358                                         (ven_req->bRequest == 0x5) ||
 359                                         (ven_req->bRequest == 0x6) ||
 360
 361                                         /* Internal Master 3 Bus can send
 362                                          * and receive only 4 bytes per time
 363                                          */
 364                                         (ven_req->bRequest == 0x2))) {
 365                 unsend_size = 0;
 366                 pdata = ven_req->pBuff;
 367
 368
 369                 unsend_size = ven_req->wLength;
 370
 371                 /* the first package */
 372                 ven_req->wValue = ven_req->wValue & 0xFFFB;
 373                 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x2;
 374                 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
 375                         ven_req->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
 380                 /* the middle package */
 381                 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x42;
 382                 while (unsend_size - 4 > 0) {
 383                         pdata = pdata + 4;
 384                         ret = __usb_control_msg(dev, pipe,
 385                                 ven_req->bRequest,
 386                                 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 387                                 ven_req->wValue, ven_req->wIndex, pdata,
 388                                 0x0004, HZ);
 389                         unsend_size = unsend_size - 4;
 390                 }
 391
 392                 /* the last package */
 393                 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x40;
 394                 pdata = pdata + 4;
 395                 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
 396                         ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 397                         ven_req->wValue, ven_req->wIndex, pdata,
 398                         unsend_size, HZ);
 399         } else {
 400                 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
 401                                 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 402                                 ven_req->wValue, ven_req->wIndex,
 403                                 ven_req->pBuff, ven_req->wLength, HZ);
 404         }
 405
 406         return ret;
 407 }
 408
 409 /*
 410  * cx231xx_write_ctrl_reg()
 411  * sends data to the usb device, specifying bRequest
 412  */
 413 int cx231xx_write_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg, char *buf,
 414                            int len)
 415 {
 416         u8 val = 0;
 417         int ret;
 418         int pipe = usb_sndctrlpipe(dev->udev, 0);
 419
 420         if (dev->state & DEV_DISCONNECTED)
 421                 return -ENODEV;
 422
 423         if ((len < 1) || (len > URB_MAX_CTRL_SIZE))
 424                 return -EINVAL;
 425
 426         switch (len) {
 427         case 1:
 428                 val = ENABLE_ONE_BYTE;
 429                 break;
 430         case 2:
 431                 val = ENABLE_TWE_BYTE;
 432                 break;
 433         case 3:
 434                 val = ENABLE_THREE_BYTE;
 435                 break;
 436         case 4:
 437                 val = ENABLE_FOUR_BYTE;
 438                 break;
 439         default:
 440                 val = 0xFF;     /* invalid option */
 441         }
 442
 443         if (val == 0xFF)
 444                 return -EINVAL;
 445
 446         if (reg_debug) {
 447                 int byte;
 448
 449                 cx231xx_isocdbg("(pipe 0x%08x): "
 450                         "OUT: %02x %02x %02x %02x %02x %02x %02x %02x >>>",
 451                         pipe,
 452                         USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 453                         req, 0, val, reg & 0xff,
 454                         reg >> 8, len & 0xff, len >> 8);
 455
 456                 for (byte = 0; byte < len; byte++)
 457                         cx231xx_isocdbg(" %02x", (unsigned char)buf[byte]);
 458                 cx231xx_isocdbg("\n");
 459         }
 460
 461         ret = __usb_control_msg(dev, pipe, req,
 462                               USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 463                               val, reg, buf, len, HZ);
 464
 465         return ret;
 466 }
 467
 468 /****************************************************************
 469 *           USB Alternate Setting functions                     *
 470 *****************************************************************/
 471
 472 int cx231xx_set_video_alternate(struct cx231xx *dev)
 473 {
 474         int errCode, prev_alt = dev->video_mode.alt;
 475         unsigned int min_pkt_size = dev->width * 2 + 4;
 476         u32 usb_interface_index = 0;
 477
 478         /* When image size is bigger than a certain value,
 479            the frame size should be increased, otherwise, only
 480            green screen will be received.
 481          */
 482         if (dev->width * 2 * dev->height > 720 * 240 * 2)
 483                 min_pkt_size *= 2;
 484
 485         if (dev->width > 360) {
 486                 /* resolutions: 720,704,640 */
 487                 dev->video_mode.alt = 3;
 488         } else if (dev->width > 180) {
 489                 /* resolutions: 360,352,320,240 */
 490                 dev->video_mode.alt = 2;
 491         } else if (dev->width > 0) {
 492                 /* resolutions: 180,176,160,128,88 */
 493                 dev->video_mode.alt = 1;
 494         } else {
 495                 /* Change to alt0 BULK to release USB bandwidth */
 496                 dev->video_mode.alt = 0;
 497         }
 498
 499         if (dev->USE_ISO == 0)
 500                 dev->video_mode.alt = 0;
 501
 502         cx231xx_coredbg("dev->video_mode.alt= %d\n", dev->video_mode.alt);
 503
 504         /* Get the correct video interface Index */
 505         usb_interface_index =
 506             dev->current_pcb_config.hs_config_info[0].interface_info.
 507             video_index + 1;
 508
 509         if (dev->video_mode.alt != prev_alt) {
 510                 cx231xx_coredbg("minimum isoc packet size: %u (alt=%d)\n",
 511                                 min_pkt_size, dev->video_mode.alt);
 512
 513                 if (dev->video_mode.alt_max_pkt_size != NULL)
 514                         dev->video_mode.max_pkt_size =
 515                         dev->video_mode.alt_max_pkt_size[dev->video_mode.alt];
 516                 cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u\n",
 517                                 dev->video_mode.alt,
 518                                 dev->video_mode.max_pkt_size);
 519                 errCode =
 520                     usb_set_interface(dev->udev, usb_interface_index,
 521                                       dev->video_mode.alt);
 522                 if (errCode < 0) {
 523                         dev_err(dev->dev,
 524                                 "cannot change alt number to %d (error=%i)\n",
 525                                 dev->video_mode.alt, errCode);
 526                         return errCode;
 527                 }
 528         }
 529         return 0;
 530 }
 531
 532 int cx231xx_set_alt_setting(struct cx231xx *dev, u8 index, u8 alt)
 533 {
 534         int status = 0;
 535         u32 usb_interface_index = 0;
 536         u32 max_pkt_size = 0;
 537
 538         switch (index) {
 539         case INDEX_TS1:
 540                 usb_interface_index =
 541                     dev->current_pcb_config.hs_config_info[0].interface_info.
 542                     ts1_index + 1;
 543                 dev->ts1_mode.alt = alt;
 544                 if (dev->ts1_mode.alt_max_pkt_size != NULL)
 545                         max_pkt_size = dev->ts1_mode.max_pkt_size =
 546                             dev->ts1_mode.alt_max_pkt_size[dev->ts1_mode.alt];
 547                 break;
 548         case INDEX_TS2:
 549                 usb_interface_index =
 550                     dev->current_pcb_config.hs_config_info[0].interface_info.
 551                     ts2_index + 1;
 552                 break;
 553         case INDEX_AUDIO:
 554                 usb_interface_index =
 555                     dev->current_pcb_config.hs_config_info[0].interface_info.
 556                     audio_index + 1;
 557                 dev->adev.alt = alt;
 558                 if (dev->adev.alt_max_pkt_size != NULL)
 559                         max_pkt_size = dev->adev.max_pkt_size =
 560                             dev->adev.alt_max_pkt_size[dev->adev.alt];
 561                 break;
 562         case INDEX_VIDEO:
 563                 usb_interface_index =
 564                     dev->current_pcb_config.hs_config_info[0].interface_info.
 565                     video_index + 1;
 566                 dev->video_mode.alt = alt;
 567                 if (dev->video_mode.alt_max_pkt_size != NULL)
 568                         max_pkt_size = dev->video_mode.max_pkt_size =
 569                             dev->video_mode.alt_max_pkt_size[dev->video_mode.
 570                                                              alt];
 571                 break;
 572         case INDEX_VANC:
 573                 if (dev->board.no_alt_vanc)
 574                         return 0;
 575                 usb_interface_index =
 576                     dev->current_pcb_config.hs_config_info[0].interface_info.
 577                     vanc_index + 1;
 578                 dev->vbi_mode.alt = alt;
 579                 if (dev->vbi_mode.alt_max_pkt_size != NULL)
 580                         max_pkt_size = dev->vbi_mode.max_pkt_size =
 581                             dev->vbi_mode.alt_max_pkt_size[dev->vbi_mode.alt];
 582                 break;
 583         case INDEX_HANC:
 584                 usb_interface_index =
 585                     dev->current_pcb_config.hs_config_info[0].interface_info.
 586                     hanc_index + 1;
 587                 dev->sliced_cc_mode.alt = alt;
 588                 if (dev->sliced_cc_mode.alt_max_pkt_size != NULL)
 589                         max_pkt_size = dev->sliced_cc_mode.max_pkt_size =
 590                             dev->sliced_cc_mode.alt_max_pkt_size[dev->
 591                                                                  sliced_cc_mode.
 592                                                                  alt];
 593                 break;
 594         default:
 595                 break;
 596         }
 597
 598         if (alt > 0 && max_pkt_size == 0) {
 599                 dev_err(dev->dev,
 600                         "can't change interface %d alt no. to %d: Max. Pkt size = 0\n",
 601                         usb_interface_index, alt);
 602                 /*To workaround error number=-71 on EP0 for videograbber,
 603                  need add following codes.*/
 604                 if (dev->board.no_alt_vanc)
 605                         return -1;
 606         }
 607
 608         cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u,"
 609                         "Interface = %d\n", alt, max_pkt_size,
 610                         usb_interface_index);
 611
 612         if (usb_interface_index > 0) {
 613                 status = usb_set_interface(dev->udev, usb_interface_index, alt);
 614                 if (status < 0) {
 615                         dev_err(dev->dev,
 616                                 "can't change interface %d alt no. to %d (err=%i)\n",
 617                                 usb_interface_index, alt, status);
 618                         return status;
 619                 }
 620         }
 621
 622         return status;
 623 }
 624 EXPORT_SYMBOL_GPL(cx231xx_set_alt_setting);
 625
 626 int cx231xx_gpio_set(struct cx231xx *dev, struct cx231xx_reg_seq *gpio)
 627 {
 628         int rc = 0;
 629
 630         if (!gpio)
 631                 return rc;
 632
 633         /* Send GPIO reset sequences specified at board entry */
 634         while (gpio->sleep >= 0) {
 635                 rc = cx231xx_set_gpio_value(dev, gpio->bit, gpio->val);
 636                 if (rc < 0)
 637                         return rc;
 638
 639                 if (gpio->sleep > 0)
 640                         msleep(gpio->sleep);
 641
 642                 gpio++;
 643         }
 644         return rc;
 645 }
 646
 647 int cx231xx_demod_reset(struct cx231xx *dev)
 648 {
 649
 650         u8 status = 0;
 651         u8 value[4] = { 0, 0, 0, 0 };
 652
 653         status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
 654                                  value, 4);
 655
 656         cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
 657                         value[0], value[1], value[2], value[3]);
 658
 659         cx231xx_coredbg("Enter cx231xx_demod_reset()\n");
 660
 661         value[1] = (u8) 0x3;
 662         status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
 663                                         PWR_CTL_EN, value, 4);
 664         msleep(10);
 665
 666         value[1] = (u8) 0x0;
 667         status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
 668                                         PWR_CTL_EN, value, 4);
 669         msleep(10);
 670
 671         value[1] = (u8) 0x3;
 672         status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
 673                                         PWR_CTL_EN, value, 4);
 674         msleep(10);
 675
 676         status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
 677                                  value, 4);
 678
 679         cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
 680                         value[0], value[1], value[2], value[3]);
 681
 682         return status;
 683 }
 684 EXPORT_SYMBOL_GPL(cx231xx_demod_reset);
 685 int is_fw_load(struct cx231xx *dev)
 686 {
 687         return cx231xx_check_fw(dev);
 688 }
 689 EXPORT_SYMBOL_GPL(is_fw_load);
 690
 691 int cx231xx_set_mode(struct cx231xx *dev, enum cx231xx_mode set_mode)
 692 {
 693         int errCode = 0;
 694
 695         if (dev->mode == set_mode)
 696                 return 0;
 697
 698         if (set_mode == CX231XX_SUSPEND) {
 699                 /* Set the chip in power saving mode */
 700                 dev->mode = set_mode;
 701         }
 702
 703         /* Resource is locked */
 704         if (dev->mode != CX231XX_SUSPEND)
 705                 return -EINVAL;
 706
 707         dev->mode = set_mode;
 708
 709         if (dev->mode == CX231XX_DIGITAL_MODE)/* Set Digital power mode */ {
 710         /* set AGC mode to Digital */
 711                 switch (dev->model) {
 712                 case CX231XX_BOARD_CNXT_CARRAERA:
 713                 case CX231XX_BOARD_CNXT_RDE_250:
 714                 case CX231XX_BOARD_CNXT_SHELBY:
 715                 case CX231XX_BOARD_CNXT_RDU_250:
 716                 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
 717                         break;
 718                 case CX231XX_BOARD_CNXT_RDE_253S:
 719                 case CX231XX_BOARD_CNXT_RDU_253S:
 720                 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
 721                         errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
 722                         break;
 723                 case CX231XX_BOARD_HAUPPAUGE_EXETER:
 724                 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
 725                         errCode = cx231xx_set_power_mode(dev,
 726                                                 POLARIS_AVMODE_DIGITAL);
 727                         break;
 728                 default:
 729                         break;
 730                 }
 731         } else/* Set Analog Power mode */ {
 732         /* set AGC mode to Analog */
 733                 switch (dev->model) {
 734                 case CX231XX_BOARD_CNXT_CARRAERA:
 735                 case CX231XX_BOARD_CNXT_RDE_250:
 736                 case CX231XX_BOARD_CNXT_SHELBY:
 737                 case CX231XX_BOARD_CNXT_RDU_250:
 738                 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
 739                         break;
 740                 case CX231XX_BOARD_CNXT_RDE_253S:
 741                 case CX231XX_BOARD_CNXT_RDU_253S:
 742                 case CX231XX_BOARD_HAUPPAUGE_EXETER:
 743                 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
 744                 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
 745                 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
 746                 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
 747                         errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
 748                         break;
 749                 default:
 750                         break;
 751                 }
 752         }
 753
 754         if (errCode < 0) {
 755                 dev_err(dev->dev, "Failed to set devmode to %s: error: %i",
 756                         dev->mode == CX231XX_DIGITAL_MODE ? "digital" : "analog",
 757                         errCode);
 758                 return errCode;
 759         }
 760
 761         return 0;
 762 }
 763 EXPORT_SYMBOL_GPL(cx231xx_set_mode);
 764
 765 int cx231xx_ep5_bulkout(struct cx231xx *dev, u8 *firmware, u16 size)
 766 {
 767         int errCode = 0;
 768         int actlen = -1;
 769         int ret = -ENOMEM;
 770         u32 *buffer;
 771
 772         buffer = kzalloc(4096, GFP_KERNEL);
 773         if (buffer == NULL)
 774                 return -ENOMEM;
 775         memcpy(&buffer[0], firmware, 4096);
 776
 777         ret = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 5),
 778                         buffer, 4096, &actlen, 2000);
 779
 780         if (ret)
 781                 dev_err(dev->dev,
 782                         "bulk message failed: %d (%d/%d)", ret,
 783                         size, actlen);
 784         else {
 785                 errCode = actlen != size ? -1 : 0;
 786         }
 787         kfree(buffer);
 788         return errCode;
 789 }
 790
 791 /*****************************************************************
 792 *                URB Streaming functions                         *
 793 ******************************************************************/
 794
 795 /*
 796  * IRQ callback, called by URB callback
 797  */
 798 static void cx231xx_isoc_irq_callback(struct urb *urb)
 799 {
 800         struct cx231xx_dmaqueue *dma_q = urb->context;
 801         struct cx231xx_video_mode *vmode =
 802             container_of(dma_q, struct cx231xx_video_mode, vidq);
 803         struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
 804         int i;
 805
 806         switch (urb->status) {
 807         case 0:         /* success */
 808         case -ETIMEDOUT:        /* NAK */
 809                 break;
 810         case -ECONNRESET:       /* kill */
 811         case -ENOENT:
 812         case -ESHUTDOWN:
 813                 return;
 814         default:                /* error */
 815                 cx231xx_isocdbg("urb completion error %d.\n", urb->status);
 816                 break;
 817         }
 818
 819         /* Copy data from URB */
 820         spin_lock(&dev->video_mode.slock);
 821         dev->video_mode.isoc_ctl.isoc_copy(dev, urb);
 822         spin_unlock(&dev->video_mode.slock);
 823
 824         /* Reset urb buffers */
 825         for (i = 0; i < urb->number_of_packets; i++) {
 826                 urb->iso_frame_desc[i].status = 0;
 827                 urb->iso_frame_desc[i].actual_length = 0;
 828         }
 829
 830         urb->status = usb_submit_urb(urb, GFP_ATOMIC);
 831         if (urb->status) {
 832                 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
 833                                 urb->status);
 834         }
 835 }
 836 /*****************************************************************
 837 *                URB Streaming functions                         *
 838 ******************************************************************/
 839
 840 /*
 841  * IRQ callback, called by URB callback
 842  */
 843 static void cx231xx_bulk_irq_callback(struct urb *urb)
 844 {
 845         struct cx231xx_dmaqueue *dma_q = urb->context;
 846         struct cx231xx_video_mode *vmode =
 847             container_of(dma_q, struct cx231xx_video_mode, vidq);
 848         struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
 849
 850         switch (urb->status) {
 851         case 0:         /* success */
 852         case -ETIMEDOUT:        /* NAK */
 853                 break;
 854         case -ECONNRESET:       /* kill */
 855         case -ENOENT:
 856         case -ESHUTDOWN:
 857                 return;
 858         case -EPIPE:            /* stall */
 859                 cx231xx_isocdbg("urb completion error - device is stalled.\n");
 860                 return;
 861         default:                /* error */
 862                 cx231xx_isocdbg("urb completion error %d.\n", urb->status);
 863                 break;
 864         }
 865
 866         /* Copy data from URB */
 867         spin_lock(&dev->video_mode.slock);
 868         dev->video_mode.bulk_ctl.bulk_copy(dev, urb);
 869         spin_unlock(&dev->video_mode.slock);
 870
 871         /* Reset urb buffers */
 872         urb->status = usb_submit_urb(urb, GFP_ATOMIC);
 873         if (urb->status) {
 874                 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
 875                                 urb->status);
 876         }
 877 }
 878 /*
 879  * Stop and Deallocate URBs
 880  */
 881 void cx231xx_uninit_isoc(struct cx231xx *dev)
 882 {
 883         struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
 884         struct urb *urb;
 885         int i;
 886         bool broken_pipe = false;
 887
 888         cx231xx_isocdbg("cx231xx: called cx231xx_uninit_isoc\n");
 889
 890         dev->video_mode.isoc_ctl.nfields = -1;
 891         for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
 892                 urb = dev->video_mode.isoc_ctl.urb[i];
 893                 if (urb) {
 894                         if (!irqs_disabled())
 895                                 usb_kill_urb(urb);
 896                         else
 897                                 usb_unlink_urb(urb);
 898
 899                         if (dev->video_mode.isoc_ctl.transfer_buffer[i]) {
 900                                 usb_free_coherent(dev->udev,
 901                                                   urb->transfer_buffer_length,
 902                                                   dev->video_mode.isoc_ctl.
 903                                                   transfer_buffer[i],
 904                                                   urb->transfer_dma);
 905                         }
 906                         if (urb->status == -EPIPE) {
 907                                 broken_pipe = true;
 908                         }
 909                         usb_free_urb(urb);
 910                         dev->video_mode.isoc_ctl.urb[i] = NULL;
 911                 }
 912                 dev->video_mode.isoc_ctl.transfer_buffer[i] = NULL;
 913         }
 914
 915         if (broken_pipe) {
 916                 cx231xx_isocdbg("Reset endpoint to recover broken pipe.");
 917                 usb_reset_endpoint(dev->udev, dev->video_mode.end_point_addr);
 918         }
 919         kfree(dev->video_mode.isoc_ctl.urb);
 920         kfree(dev->video_mode.isoc_ctl.transfer_buffer);
 921         kfree(dma_q->p_left_data);
 922
 923         dev->video_mode.isoc_ctl.urb = NULL;
 924         dev->video_mode.isoc_ctl.transfer_buffer = NULL;
 925         dev->video_mode.isoc_ctl.num_bufs = 0;
 926         dma_q->p_left_data = NULL;
 927
 928         if (dev->mode_tv == 0)
 929                 cx231xx_capture_start(dev, 0, Raw_Video);
 930         else
 931                 cx231xx_capture_start(dev, 0, TS1_serial_mode);
 932
 933
 934 }
 935 EXPORT_SYMBOL_GPL(cx231xx_uninit_isoc);
 936
 937 /*
 938  * Stop and Deallocate URBs
 939  */
 940 void cx231xx_uninit_bulk(struct cx231xx *dev)
 941 {
 942         struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
 943         struct urb *urb;
 944         int i;
 945         bool broken_pipe = false;
 946
 947         cx231xx_isocdbg("cx231xx: called cx231xx_uninit_bulk\n");
 948
 949         dev->video_mode.bulk_ctl.nfields = -1;
 950         for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
 951                 urb = dev->video_mode.bulk_ctl.urb[i];
 952                 if (urb) {
 953                         if (!irqs_disabled())
 954                                 usb_kill_urb(urb);
 955                         else
 956                                 usb_unlink_urb(urb);
 957
 958                         if (dev->video_mode.bulk_ctl.transfer_buffer[i]) {
 959                                 usb_free_coherent(dev->udev,
 960                                                 urb->transfer_buffer_length,
 961                                                 dev->video_mode.bulk_ctl.
 962                                                 transfer_buffer[i],
 963                                                 urb->transfer_dma);
 964                         }
 965                         if (urb->status == -EPIPE) {
 966                                 broken_pipe = true;
 967                         }
 968                         usb_free_urb(urb);
 969                         dev->video_mode.bulk_ctl.urb[i] = NULL;
 970                 }
 971                 dev->video_mode.bulk_ctl.transfer_buffer[i] = NULL;
 972         }
 973
 974         if (broken_pipe) {
 975                 cx231xx_isocdbg("Reset endpoint to recover broken pipe.");
 976                 usb_reset_endpoint(dev->udev, dev->video_mode.end_point_addr);
 977         }
 978         kfree(dev->video_mode.bulk_ctl.urb);
 979         kfree(dev->video_mode.bulk_ctl.transfer_buffer);
 980         kfree(dma_q->p_left_data);
 981
 982         dev->video_mode.bulk_ctl.urb = NULL;
 983         dev->video_mode.bulk_ctl.transfer_buffer = NULL;
 984         dev->video_mode.bulk_ctl.num_bufs = 0;
 985         dma_q->p_left_data = NULL;
 986
 987         if (dev->mode_tv == 0)
 988                 cx231xx_capture_start(dev, 0, Raw_Video);
 989         else
 990                 cx231xx_capture_start(dev, 0, TS1_serial_mode);
 991
 992
 993 }
 994 EXPORT_SYMBOL_GPL(cx231xx_uninit_bulk);
 995
 996 /*
 997  * Allocate URBs and start IRQ
 998  */
 999 int cx231xx_init_isoc(struct cx231xx *dev, int max_packets,
1000                       int num_bufs, int max_pkt_size,
1001                       int (*isoc_copy) (struct cx231xx *dev, struct urb *urb))
1002 {
1003         struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
1004         int i;
1005         int sb_size, pipe;
1006         struct urb *urb;
1007         int j, k;
1008         int rc;
1009
1010         /* De-allocates all pending stuff */
1011         cx231xx_uninit_isoc(dev);
1012
1013         dma_q->p_left_data = kzalloc(4096, GFP_KERNEL);
1014         if (dma_q->p_left_data == NULL)
1015                 return -ENOMEM;
1016
1017         dev->video_mode.isoc_ctl.isoc_copy = isoc_copy;
1018         dev->video_mode.isoc_ctl.num_bufs = num_bufs;
1019         dma_q->pos = 0;
1020         dma_q->is_partial_line = 0;
1021         dma_q->last_sav = 0;
1022         dma_q->current_field = -1;
1023         dma_q->field1_done = 0;
1024         dma_q->lines_per_field = dev->height / 2;
1025         dma_q->bytes_left_in_line = dev->width << 1;
1026         dma_q->lines_completed = 0;
1027         dma_q->mpeg_buffer_done = 0;
1028         dma_q->left_data_count = 0;
1029         dma_q->mpeg_buffer_completed = 0;
1030         dma_q->add_ps_package_head = CX231XX_NEED_ADD_PS_PACKAGE_HEAD;
1031         dma_q->ps_head[0] = 0x00;
1032         dma_q->ps_head[1] = 0x00;
1033         dma_q->ps_head[2] = 0x01;
1034         dma_q->ps_head[3] = 0xBA;
1035         for (i = 0; i < 8; i++)
1036                 dma_q->partial_buf[i] = 0;
1037
1038         dev->video_mode.isoc_ctl.urb =
1039             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1040         if (!dev->video_mode.isoc_ctl.urb) {
1041                 dev_err(dev->dev,
1042                         "cannot alloc memory for usb buffers\n");
1043                 return -ENOMEM;
1044         }
1045
1046         dev->video_mode.isoc_ctl.transfer_buffer =
1047             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1048         if (!dev->video_mode.isoc_ctl.transfer_buffer) {
1049                 dev_err(dev->dev,
1050                         "cannot allocate memory for usbtransfer\n");
1051                 kfree(dev->video_mode.isoc_ctl.urb);
1052                 return -ENOMEM;
1053         }
1054
1055         dev->video_mode.isoc_ctl.max_pkt_size = max_pkt_size;
1056         dev->video_mode.isoc_ctl.buf = NULL;
1057
1058         sb_size = max_packets * dev->video_mode.isoc_ctl.max_pkt_size;
1059
1060         if (dev->mode_tv == 1)
1061                 dev->video_mode.end_point_addr = 0x81;
1062         else
1063                 dev->video_mode.end_point_addr = 0x84;
1064
1065
1066         /* allocate urbs and transfer buffers */
1067         for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1068                 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
1069                 if (!urb) {
1070                         cx231xx_uninit_isoc(dev);
1071                         return -ENOMEM;
1072                 }
1073                 dev->video_mode.isoc_ctl.urb[i] = urb;
1074
1075                 dev->video_mode.isoc_ctl.transfer_buffer[i] =
1076                     usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1077                                        &urb->transfer_dma);
1078                 if (!dev->video_mode.isoc_ctl.transfer_buffer[i]) {
1079                         dev_err(dev->dev,
1080                                 "unable to allocate %i bytes for transfer buffer %i%s\n",
1081                                 sb_size, i,
1082                                 in_interrupt() ? " while in int" : "");
1083                         cx231xx_uninit_isoc(dev);
1084                         return -ENOMEM;
1085                 }
1086                 memset(dev->video_mode.isoc_ctl.transfer_buffer[i], 0, sb_size);
1087
1088                 pipe =
1089                     usb_rcvisocpipe(dev->udev, dev->video_mode.end_point_addr);
1090
1091                 usb_fill_int_urb(urb, dev->udev, pipe,
1092                                  dev->video_mode.isoc_ctl.transfer_buffer[i],
1093                                  sb_size, cx231xx_isoc_irq_callback, dma_q, 1);
1094
1095                 urb->number_of_packets = max_packets;
1096                 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
1097
1098                 k = 0;
1099                 for (j = 0; j < max_packets; j++) {
1100                         urb->iso_frame_desc[j].offset = k;
1101                         urb->iso_frame_desc[j].length =
1102                             dev->video_mode.isoc_ctl.max_pkt_size;
1103                         k += dev->video_mode.isoc_ctl.max_pkt_size;
1104                 }
1105         }
1106
1107         init_waitqueue_head(&dma_q->wq);
1108
1109         /* submit urbs and enables IRQ */
1110         for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1111                 rc = usb_submit_urb(dev->video_mode.isoc_ctl.urb[i],
1112                                     GFP_ATOMIC);
1113                 if (rc) {
1114                         dev_err(dev->dev,
1115                                 "submit of urb %i failed (error=%i)\n", i,
1116                                 rc);
1117                         cx231xx_uninit_isoc(dev);
1118                         return rc;
1119                 }
1120         }
1121
1122         if (dev->mode_tv == 0)
1123                 cx231xx_capture_start(dev, 1, Raw_Video);
1124         else
1125                 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1126
1127         return 0;
1128 }
1129 EXPORT_SYMBOL_GPL(cx231xx_init_isoc);
1130
1131 /*
1132  * Allocate URBs and start IRQ
1133  */
1134 int cx231xx_init_bulk(struct cx231xx *dev, int max_packets,
1135                       int num_bufs, int max_pkt_size,
1136                       int (*bulk_copy) (struct cx231xx *dev, struct urb *urb))
1137 {
1138         struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
1139         int i;
1140         int sb_size, pipe;
1141         struct urb *urb;
1142         int rc;
1143
1144         dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
1145
1146         cx231xx_coredbg("Setting Video mux to %d\n", dev->video_input);
1147
1148         video_mux(dev, dev->video_input);
1149
1150         /* De-allocates all pending stuff */
1151         cx231xx_uninit_bulk(dev);
1152
1153         dev->video_mode.bulk_ctl.bulk_copy = bulk_copy;
1154         dev->video_mode.bulk_ctl.num_bufs = num_bufs;
1155         dma_q->pos = 0;
1156         dma_q->is_partial_line = 0;
1157         dma_q->last_sav = 0;
1158         dma_q->current_field = -1;
1159         dma_q->field1_done = 0;
1160         dma_q->lines_per_field = dev->height / 2;
1161         dma_q->bytes_left_in_line = dev->width << 1;
1162         dma_q->lines_completed = 0;
1163         dma_q->mpeg_buffer_done = 0;
1164         dma_q->left_data_count = 0;
1165         dma_q->mpeg_buffer_completed = 0;
1166         dma_q->ps_head[0] = 0x00;
1167         dma_q->ps_head[1] = 0x00;
1168         dma_q->ps_head[2] = 0x01;
1169         dma_q->ps_head[3] = 0xBA;
1170         for (i = 0; i < 8; i++)
1171                 dma_q->partial_buf[i] = 0;
1172
1173         dev->video_mode.bulk_ctl.urb =
1174             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1175         if (!dev->video_mode.bulk_ctl.urb) {
1176                 dev_err(dev->dev,
1177                         "cannot alloc memory for usb buffers\n");
1178                 return -ENOMEM;
1179         }
1180
1181         dev->video_mode.bulk_ctl.transfer_buffer =
1182             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1183         if (!dev->video_mode.bulk_ctl.transfer_buffer) {
1184                 dev_err(dev->dev,
1185                         "cannot allocate memory for usbtransfer\n");
1186                 kfree(dev->video_mode.bulk_ctl.urb);
1187                 return -ENOMEM;
1188         }
1189
1190         dev->video_mode.bulk_ctl.max_pkt_size = max_pkt_size;
1191         dev->video_mode.bulk_ctl.buf = NULL;
1192
1193         sb_size = max_packets * dev->video_mode.bulk_ctl.max_pkt_size;
1194
1195         if (dev->mode_tv == 1)
1196                 dev->video_mode.end_point_addr = 0x81;
1197         else
1198                 dev->video_mode.end_point_addr = 0x84;
1199
1200
1201         /* allocate urbs and transfer buffers */
1202         for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1203                 urb = usb_alloc_urb(0, GFP_KERNEL);
1204                 if (!urb) {
1205                         cx231xx_uninit_bulk(dev);
1206                         return -ENOMEM;
1207                 }
1208                 dev->video_mode.bulk_ctl.urb[i] = urb;
1209                 urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
1210
1211                 dev->video_mode.bulk_ctl.transfer_buffer[i] =
1212                     usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1213                                      &urb->transfer_dma);
1214                 if (!dev->video_mode.bulk_ctl.transfer_buffer[i]) {
1215                         dev_err(dev->dev,
1216                                 "unable to allocate %i bytes for transfer buffer %i%s\n",
1217                                 sb_size, i,
1218                                 in_interrupt() ? " while in int" : "");
1219                         cx231xx_uninit_bulk(dev);
1220                         return -ENOMEM;
1221                 }
1222                 memset(dev->video_mode.bulk_ctl.transfer_buffer[i], 0, sb_size);
1223
1224                 pipe = usb_rcvbulkpipe(dev->udev,
1225                                  dev->video_mode.end_point_addr);
1226                 usb_fill_bulk_urb(urb, dev->udev, pipe,
1227                                   dev->video_mode.bulk_ctl.transfer_buffer[i],
1228                                   sb_size, cx231xx_bulk_irq_callback, dma_q);
1229         }
1230
1231         /* clear halt */
1232         rc = usb_clear_halt(dev->udev, dev->video_mode.bulk_ctl.urb[0]->pipe);
1233         if (rc < 0) {
1234                 dev_err(dev->dev,
1235                         "failed to clear USB bulk endpoint stall/halt condition (error=%i)\n",
1236                         rc);
1237                 cx231xx_uninit_bulk(dev);
1238                 return rc;
1239         }
1240
1241         init_waitqueue_head(&dma_q->wq);
1242
1243         /* submit urbs and enables IRQ */
1244         for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1245                 rc = usb_submit_urb(dev->video_mode.bulk_ctl.urb[i],
1246                                     GFP_ATOMIC);
1247                 if (rc) {
1248                         dev_err(dev->dev,
1249                                 "submit of urb %i failed (error=%i)\n", i, rc);
1250                         cx231xx_uninit_bulk(dev);
1251                         return rc;
1252                 }
1253         }
1254
1255         if (dev->mode_tv == 0)
1256                 cx231xx_capture_start(dev, 1, Raw_Video);
1257         else
1258                 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1259
1260         return 0;
1261 }
1262 EXPORT_SYMBOL_GPL(cx231xx_init_bulk);
1263 void cx231xx_stop_TS1(struct cx231xx *dev)
1264 {
1265         u8 val[4] = { 0, 0, 0, 0 };
1266
1267         val[0] = 0x00;
1268         val[1] = 0x03;
1269         val[2] = 0x00;
1270         val[3] = 0x00;
1271         cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1272                         TS_MODE_REG, val, 4);
1273
1274         val[0] = 0x00;
1275         val[1] = 0x70;
1276         val[2] = 0x04;
1277         val[3] = 0x00;
1278         cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1279                         TS1_CFG_REG, val, 4);
1280 }
1281 /* EXPORT_SYMBOL_GPL(cx231xx_stop_TS1); */
1282 void cx231xx_start_TS1(struct cx231xx *dev)
1283 {
1284         u8 val[4] = { 0, 0, 0, 0 };
1285
1286         val[0] = 0x03;
1287         val[1] = 0x03;
1288         val[2] = 0x00;
1289         val[3] = 0x00;
1290         cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1291                         TS_MODE_REG, val, 4);
1292
1293         val[0] = 0x04;
1294         val[1] = 0xA3;
1295         val[2] = 0x3B;
1296         val[3] = 0x00;
1297         cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1298                         TS1_CFG_REG, val, 4);
1299 }
1300 /* EXPORT_SYMBOL_GPL(cx231xx_start_TS1); */
1301 /*****************************************************************
1302 *             Device Init/UnInit functions                       *
1303 ******************************************************************/
1304 int cx231xx_dev_init(struct cx231xx *dev)
1305 {
1306         int errCode = 0;
1307
1308         /* Initialize I2C bus */
1309
1310         /* External Master 1 Bus */
1311         dev->i2c_bus[0].nr = 0;
1312         dev->i2c_bus[0].dev = dev;
1313         dev->i2c_bus[0].i2c_period = I2C_SPEED_100K;    /* 100 KHz */
1314         dev->i2c_bus[0].i2c_nostop = 0;
1315         dev->i2c_bus[0].i2c_reserve = 0;
1316
1317         /* External Master 2 Bus */
1318         dev->i2c_bus[1].nr = 1;
1319         dev->i2c_bus[1].dev = dev;
1320         dev->i2c_bus[1].i2c_period = I2C_SPEED_100K;    /* 100 KHz */
1321         dev->i2c_bus[1].i2c_nostop = 0;
1322         dev->i2c_bus[1].i2c_reserve = 0;
1323
1324         /* Internal Master 3 Bus */
1325         dev->i2c_bus[2].nr = 2;
1326         dev->i2c_bus[2].dev = dev;
1327         dev->i2c_bus[2].i2c_period = I2C_SPEED_100K;    /* 100kHz */
1328         dev->i2c_bus[2].i2c_nostop = 0;
1329         dev->i2c_bus[2].i2c_reserve = 0;
1330
1331         /* register I2C buses */
1332         errCode = cx231xx_i2c_register(&dev->i2c_bus[0]);
1333         if (errCode < 0)
1334                 return errCode;
1335         errCode = cx231xx_i2c_register(&dev->i2c_bus[1]);
1336         if (errCode < 0)
1337                 return errCode;
1338         errCode = cx231xx_i2c_register(&dev->i2c_bus[2]);
1339         if (errCode < 0)
1340                 return errCode;
1341
1342         errCode = cx231xx_i2c_mux_create(dev);
1343         if (errCode < 0) {
1344                 dev_err(dev->dev,
1345                         "%s: Failed to create I2C mux\n", __func__);
1346                 return errCode;
1347         }
1348         errCode = cx231xx_i2c_mux_register(dev, 0);
1349         if (errCode < 0)
1350                 return errCode;
1351
1352         errCode = cx231xx_i2c_mux_register(dev, 1);
1353         if (errCode < 0)
1354                 return errCode;
1355
1356         /* scan the real bus segments in the order of physical port numbers */
1357         cx231xx_do_i2c_scan(dev, I2C_0);
1358         cx231xx_do_i2c_scan(dev, I2C_1_MUX_1);
1359         cx231xx_do_i2c_scan(dev, I2C_2);
1360         cx231xx_do_i2c_scan(dev, I2C_1_MUX_3);
1361
1362         /* init hardware */
1363         /* Note : with out calling set power mode function,
1364         afe can not be set up correctly */
1365         if (dev->board.external_av) {
1366                 errCode = cx231xx_set_power_mode(dev,
1367                                  POLARIS_AVMODE_ENXTERNAL_AV);
1368                 if (errCode < 0) {
1369                         dev_err(dev->dev,
1370                                 "%s: Failed to set Power - errCode [%d]!\n",
1371                                 __func__, errCode);
1372                         return errCode;
1373                 }
1374         } else {
1375                 errCode = cx231xx_set_power_mode(dev,
1376                                  POLARIS_AVMODE_ANALOGT_TV);
1377                 if (errCode < 0) {
1378                         dev_err(dev->dev,
1379                                 "%s: Failed to set Power - errCode [%d]!\n",
1380                                 __func__, errCode);
1381                         return errCode;
1382                 }
1383         }
1384
1385         /* reset the Tuner, if it is a Xceive tuner */
1386         if ((dev->board.tuner_type == TUNER_XC5000) ||
1387             (dev->board.tuner_type == TUNER_XC2028))
1388                         cx231xx_gpio_set(dev, dev->board.tuner_gpio);
1389
1390         /* initialize Colibri block */
1391         errCode = cx231xx_afe_init_super_block(dev, 0x23c);
1392         if (errCode < 0) {
1393                 dev_err(dev->dev,
1394                         "%s: cx231xx_afe init super block - errCode [%d]!\n",
1395                         __func__, errCode);
1396                 return errCode;
1397         }
1398         errCode = cx231xx_afe_init_channels(dev);
1399         if (errCode < 0) {
1400                 dev_err(dev->dev,
1401                         "%s: cx231xx_afe init channels - errCode [%d]!\n",
1402                         __func__, errCode);
1403                 return errCode;
1404         }
1405
1406         /* Set DIF in By pass mode */
1407         errCode = cx231xx_dif_set_standard(dev, DIF_USE_BASEBAND);
1408         if (errCode < 0) {
1409                 dev_err(dev->dev,
1410                         "%s: cx231xx_dif set to By pass mode - errCode [%d]!\n",
1411                         __func__, errCode);
1412                 return errCode;
1413         }
1414
1415         /* I2S block related functions */
1416         errCode = cx231xx_i2s_blk_initialize(dev);
1417         if (errCode < 0) {
1418                 dev_err(dev->dev,
1419                         "%s: cx231xx_i2s block initialize - errCode [%d]!\n",
1420                         __func__, errCode);
1421                 return errCode;
1422         }
1423
1424         /* init control pins */
1425         errCode = cx231xx_init_ctrl_pin_status(dev);
1426         if (errCode < 0) {
1427                 dev_err(dev->dev,
1428                         "%s: cx231xx_init ctrl pins - errCode [%d]!\n",
1429                         __func__, errCode);
1430                 return errCode;
1431         }
1432
1433         /* set AGC mode to Analog */
1434         switch (dev->model) {
1435         case CX231XX_BOARD_CNXT_CARRAERA:
1436         case CX231XX_BOARD_CNXT_RDE_250:
1437         case CX231XX_BOARD_CNXT_SHELBY:
1438         case CX231XX_BOARD_CNXT_RDU_250:
1439         errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
1440                 break;
1441         case CX231XX_BOARD_CNXT_RDE_253S:
1442         case CX231XX_BOARD_CNXT_RDU_253S:
1443         case CX231XX_BOARD_HAUPPAUGE_EXETER:
1444         case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
1445         case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
1446         case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
1447         case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
1448         errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
1449                 break;
1450         default:
1451                 break;
1452         }
1453         if (errCode < 0) {
1454                 dev_err(dev->dev,
1455                         "%s: cx231xx_AGC mode to Analog - errCode [%d]!\n",
1456                         __func__, errCode);
1457                 return errCode;
1458         }
1459
1460         /* set all alternate settings to zero initially */
1461         cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
1462         cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1463         cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
1464         if (dev->board.has_dvb)
1465                 cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
1466
1467         errCode = 0;
1468         return errCode;
1469 }
1470 EXPORT_SYMBOL_GPL(cx231xx_dev_init);
1471
1472 void cx231xx_dev_uninit(struct cx231xx *dev)
1473 {
1474         /* Un Initialize I2C bus */
1475         cx231xx_i2c_mux_unregister(dev);
1476         cx231xx_i2c_unregister(&dev->i2c_bus[2]);
1477         cx231xx_i2c_unregister(&dev->i2c_bus[1]);
1478         cx231xx_i2c_unregister(&dev->i2c_bus[0]);
1479 }
1480 EXPORT_SYMBOL_GPL(cx231xx_dev_uninit);
1481
1482 /*****************************************************************
1483 *              G P I O related functions                         *
1484 ******************************************************************/
1485 int cx231xx_send_gpio_cmd(struct cx231xx *dev, u32 gpio_bit, u8 *gpio_val,
1486                           u8 len, u8 request, u8 direction)
1487 {
1488         int status = 0;
1489         struct VENDOR_REQUEST_IN ven_req;
1490
1491         /* Set wValue */
1492         ven_req.wValue = (u16) (gpio_bit >> 16 & 0xffff);
1493
1494         /* set request */
1495         if (!request) {
1496                 if (direction)
1497                         ven_req.bRequest = VRT_GET_GPIO;        /* 0x9 gpio */
1498                 else
1499                         ven_req.bRequest = VRT_SET_GPIO;        /* 0x8 gpio */
1500         } else {
1501                 if (direction)
1502                         ven_req.bRequest = VRT_GET_GPIE;        /* 0xb gpie */
1503                 else
1504                         ven_req.bRequest = VRT_SET_GPIE;        /* 0xa gpie */
1505         }
1506
1507         /* set index value */
1508         ven_req.wIndex = (u16) (gpio_bit & 0xffff);
1509
1510         /* set wLength value */
1511         ven_req.wLength = len;
1512
1513         /* set bData value */
1514         ven_req.bData = 0;
1515
1516         /* set the buffer for read / write */
1517         ven_req.pBuff = gpio_val;
1518
1519         /* set the direction */
1520         if (direction) {
1521                 ven_req.direction = USB_DIR_IN;
1522                 memset(ven_req.pBuff, 0x00, ven_req.wLength);
1523         } else
1524                 ven_req.direction = USB_DIR_OUT;
1525
1526
1527         /* call common vendor command request */
1528         status = cx231xx_send_vendor_cmd(dev, &ven_req);
1529         if (status < 0) {
1530                 dev_err(dev->dev, "%s: failed with status -%d\n",
1531                         __func__, status);
1532         }
1533
1534         return status;
1535 }
1536 EXPORT_SYMBOL_GPL(cx231xx_send_gpio_cmd);
1537
1538 /*****************************************************************
1539  *    C O N T R O L - Register R E A D / W R I T E functions     *
1540  *****************************************************************/
1541 int cx231xx_mode_register(struct cx231xx *dev, u16 address, u32 mode)
1542 {
1543         u8 value[4] = { 0x0, 0x0, 0x0, 0x0 };
1544         u32 tmp = 0;
1545         int status = 0;
1546
1547         status =
1548             cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, address, value, 4);
1549         if (status < 0)
1550                 return status;
1551
1552         tmp = le32_to_cpu(*((__le32 *) value));
1553         tmp |= mode;
1554
1555         value[0] = (u8) tmp;
1556         value[1] = (u8) (tmp >> 8);
1557         value[2] = (u8) (tmp >> 16);
1558         value[3] = (u8) (tmp >> 24);
1559
1560         status =
1561             cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, address, value, 4);
1562
1563         return status;
1564 }
1565
1566 /*****************************************************************
1567  *            I 2 C Internal C O N T R O L   functions           *
1568  *****************************************************************/
1569 int cx231xx_read_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1570                           u8 saddr_len, u32 *data, u8 data_len, int master)
1571 {
1572         int status = 0;
1573         struct cx231xx_i2c_xfer_data req_data;
1574         u8 value[64] = "0";
1575
1576         if (saddr_len == 0)
1577                 saddr = 0;
1578         else if (saddr_len == 1)
1579                 saddr &= 0xff;
1580
1581         /* prepare xfer_data struct */
1582         req_data.dev_addr = dev_addr >> 1;
1583         req_data.direction = I2C_M_RD;
1584         req_data.saddr_len = saddr_len;
1585         req_data.saddr_dat = saddr;
1586         req_data.buf_size = data_len;
1587         req_data.p_buffer = (u8 *) value;
1588
1589         /* usb send command */
1590         if (master == 0)
1591                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1592                                          &req_data);
1593         else if (master == 1)
1594                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1595                                          &req_data);
1596         else if (master == 2)
1597                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1598                                          &req_data);
1599
1600         if (status >= 0) {
1601                 /* Copy the data read back to main buffer */
1602                 if (data_len == 1)
1603                         *data = value[0];
1604                 else if (data_len == 4)
1605                         *data =
1606                             value[0] | value[1] << 8 | value[2] << 16 | value[3]
1607                             << 24;
1608                 else if (data_len > 4)
1609                         *data = value[saddr];
1610         }
1611
1612         return status;
1613 }
1614
1615 int cx231xx_write_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1616                            u8 saddr_len, u32 data, u8 data_len, int master)
1617 {
1618         int status = 0;
1619         u8 value[4] = { 0, 0, 0, 0 };
1620         struct cx231xx_i2c_xfer_data req_data;
1621
1622         value[0] = (u8) data;
1623         value[1] = (u8) (data >> 8);
1624         value[2] = (u8) (data >> 16);
1625         value[3] = (u8) (data >> 24);
1626
1627         if (saddr_len == 0)
1628                 saddr = 0;
1629         else if (saddr_len == 1)
1630                 saddr &= 0xff;
1631
1632         /* prepare xfer_data struct */
1633         req_data.dev_addr = dev_addr >> 1;
1634         req_data.direction = 0;
1635         req_data.saddr_len = saddr_len;
1636         req_data.saddr_dat = saddr;
1637         req_data.buf_size = data_len;
1638         req_data.p_buffer = value;
1639
1640         /* usb send command */
1641         if (master == 0)
1642                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1643                                  &req_data);
1644         else if (master == 1)
1645                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1646                                  &req_data);
1647         else if (master == 2)
1648                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1649                                  &req_data);
1650
1651         return status;
1652 }
1653
1654 int cx231xx_read_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1655                           u8 saddr_len, u32 *data, u8 data_len)
1656 {
1657         int status = 0;
1658         struct cx231xx_i2c_xfer_data req_data;
1659         u8 value[4] = { 0, 0, 0, 0 };
1660
1661         if (saddr_len == 0)
1662                 saddr = 0;
1663         else if (saddr_len == 1)
1664                 saddr &= 0xff;
1665
1666         /* prepare xfer_data struct */
1667         req_data.dev_addr = dev_addr >> 1;
1668         req_data.direction = I2C_M_RD;
1669         req_data.saddr_len = saddr_len;
1670         req_data.saddr_dat = saddr;
1671         req_data.buf_size = data_len;
1672         req_data.p_buffer = (u8 *) value;
1673
1674         /* usb send command */
1675         status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1676
1677         if (status >= 0) {
1678                 /* Copy the data read back to main buffer */
1679                 if (data_len == 1)
1680                         *data = value[0];
1681                 else
1682                         *data =
1683                             value[0] | value[1] << 8 | value[2] << 16 | value[3]
1684                             << 24;
1685         }
1686
1687         return status;
1688 }
1689
1690 int cx231xx_write_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1691                            u8 saddr_len, u32 data, u8 data_len)
1692 {
1693         int status = 0;
1694         u8 value[4] = { 0, 0, 0, 0 };
1695         struct cx231xx_i2c_xfer_data req_data;
1696
1697         value[0] = (u8) data;
1698         value[1] = (u8) (data >> 8);
1699         value[2] = (u8) (data >> 16);
1700         value[3] = (u8) (data >> 24);
1701
1702         if (saddr_len == 0)
1703                 saddr = 0;
1704         else if (saddr_len == 1)
1705                 saddr &= 0xff;
1706
1707         /* prepare xfer_data struct */
1708         req_data.dev_addr = dev_addr >> 1;
1709         req_data.direction = 0;
1710         req_data.saddr_len = saddr_len;
1711         req_data.saddr_dat = saddr;
1712         req_data.buf_size = data_len;
1713         req_data.p_buffer = value;
1714
1715         /* usb send command */
1716         status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1717
1718         return status;
1719 }
1720
1721 int cx231xx_reg_mask_write(struct cx231xx *dev, u8 dev_addr, u8 size,
1722                            u16 register_address, u8 bit_start, u8 bit_end,
1723                            u32 value)
1724 {
1725         int status = 0;
1726         u32 tmp;
1727         u32 mask = 0;
1728         int i;
1729
1730         if (bit_start > (size - 1) || bit_end > (size - 1))
1731                 return -1;
1732
1733         if (size == 8) {
1734                 status =
1735                     cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1736                                           &tmp, 1);
1737         } else {
1738                 status =
1739                     cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1740                                           &tmp, 4);
1741         }
1742
1743         if (status < 0)
1744                 return status;
1745
1746         mask = 1 << bit_end;
1747         for (i = bit_end; i > bit_start && i > 0; i--)
1748                 mask = mask + (1 << (i - 1));
1749
1750         value <<= bit_start;
1751
1752         if (size == 8) {
1753                 tmp &= ~mask;
1754                 tmp |= value;
1755                 tmp &= 0xff;
1756                 status =
1757                     cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1758                                            tmp, 1);
1759         } else {
1760                 tmp &= ~mask;
1761                 tmp |= value;
1762                 status =
1763                     cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1764                                            tmp, 4);
1765         }
1766
1767         return status;
1768 }
1769
1770 int cx231xx_read_modify_write_i2c_dword(struct cx231xx *dev, u8 dev_addr,
1771                                         u16 saddr, u32 mask, u32 value)
1772 {
1773         u32 temp;
1774         int status = 0;
1775
1776         status = cx231xx_read_i2c_data(dev, dev_addr, saddr, 2, &temp, 4);
1777
1778         if (status < 0)
1779                 return status;
1780
1781         temp &= ~mask;
1782         temp |= value;
1783
1784         status = cx231xx_write_i2c_data(dev, dev_addr, saddr, 2, temp, 4);
1785
1786         return status;
1787 }
1788
1789 u32 cx231xx_set_field(u32 field_mask, u32 data)
1790 {
1791         u32 temp;
1792
1793         for (temp = field_mask; (temp & 1) == 0; temp >>= 1)
1794                 data <<= 1;
1795
1796         return data;
1797 }