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         return errCode ? -EINVAL : 0;
 755 }
 756 EXPORT_SYMBOL_GPL(cx231xx_set_mode);
 757
 758 int cx231xx_ep5_bulkout(struct cx231xx *dev, u8 *firmware, u16 size)
 759 {
 760         int errCode = 0;
 761         int actlen, ret = -ENOMEM;
 762         u32 *buffer;
 763
 764         buffer = kzalloc(4096, GFP_KERNEL);
 765         if (buffer == NULL)
 766                 return -ENOMEM;
 767         memcpy(&buffer[0], firmware, 4096);
 768
 769         ret = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 5),
 770                         buffer, 4096, &actlen, 2000);
 771
 772         if (ret)
 773                 dev_err(dev->dev,
 774                         "bulk message failed: %d (%d/%d)", ret,
 775                         size, actlen);
 776         else {
 777                 errCode = actlen != size ? -1 : 0;
 778         }
 779         kfree(buffer);
 780         return errCode;
 781 }
 782
 783 /*****************************************************************
 784 *                URB Streaming functions                         *
 785 ******************************************************************/
 786
 787 /*
 788  * IRQ callback, called by URB callback
 789  */
 790 static void cx231xx_isoc_irq_callback(struct urb *urb)
 791 {
 792         struct cx231xx_dmaqueue *dma_q = urb->context;
 793         struct cx231xx_video_mode *vmode =
 794             container_of(dma_q, struct cx231xx_video_mode, vidq);
 795         struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
 796         int i;
 797
 798         switch (urb->status) {
 799         case 0:         /* success */
 800         case -ETIMEDOUT:        /* NAK */
 801                 break;
 802         case -ECONNRESET:       /* kill */
 803         case -ENOENT:
 804         case -ESHUTDOWN:
 805                 return;
 806         default:                /* error */
 807                 cx231xx_isocdbg("urb completition error %d.\n", urb->status);
 808                 break;
 809         }
 810
 811         /* Copy data from URB */
 812         spin_lock(&dev->video_mode.slock);
 813         dev->video_mode.isoc_ctl.isoc_copy(dev, urb);
 814         spin_unlock(&dev->video_mode.slock);
 815
 816         /* Reset urb buffers */
 817         for (i = 0; i < urb->number_of_packets; i++) {
 818                 urb->iso_frame_desc[i].status = 0;
 819                 urb->iso_frame_desc[i].actual_length = 0;
 820         }
 821
 822         urb->status = usb_submit_urb(urb, GFP_ATOMIC);
 823         if (urb->status) {
 824                 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
 825                                 urb->status);
 826         }
 827 }
 828 /*****************************************************************
 829 *                URB Streaming functions                         *
 830 ******************************************************************/
 831
 832 /*
 833  * IRQ callback, called by URB callback
 834  */
 835 static void cx231xx_bulk_irq_callback(struct urb *urb)
 836 {
 837         struct cx231xx_dmaqueue *dma_q = urb->context;
 838         struct cx231xx_video_mode *vmode =
 839             container_of(dma_q, struct cx231xx_video_mode, vidq);
 840         struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
 841
 842         switch (urb->status) {
 843         case 0:         /* success */
 844         case -ETIMEDOUT:        /* NAK */
 845                 break;
 846         case -ECONNRESET:       /* kill */
 847         case -ENOENT:
 848         case -ESHUTDOWN:
 849                 return;
 850         default:                /* error */
 851                 cx231xx_isocdbg("urb completition error %d.\n", urb->status);
 852                 break;
 853         }
 854
 855         /* Copy data from URB */
 856         spin_lock(&dev->video_mode.slock);
 857         dev->video_mode.bulk_ctl.bulk_copy(dev, urb);
 858         spin_unlock(&dev->video_mode.slock);
 859
 860         /* Reset urb buffers */
 861         urb->status = usb_submit_urb(urb, GFP_ATOMIC);
 862         if (urb->status) {
 863                 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
 864                                 urb->status);
 865         }
 866 }
 867 /*
 868  * Stop and Deallocate URBs
 869  */
 870 void cx231xx_uninit_isoc(struct cx231xx *dev)
 871 {
 872         struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
 873         struct urb *urb;
 874         int i;
 875
 876         cx231xx_isocdbg("cx231xx: called cx231xx_uninit_isoc\n");
 877
 878         dev->video_mode.isoc_ctl.nfields = -1;
 879         for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
 880                 urb = dev->video_mode.isoc_ctl.urb[i];
 881                 if (urb) {
 882                         if (!irqs_disabled())
 883                                 usb_kill_urb(urb);
 884                         else
 885                                 usb_unlink_urb(urb);
 886
 887                         if (dev->video_mode.isoc_ctl.transfer_buffer[i]) {
 888                                 usb_free_coherent(dev->udev,
 889                                                   urb->transfer_buffer_length,
 890                                                   dev->video_mode.isoc_ctl.
 891                                                   transfer_buffer[i],
 892                                                   urb->transfer_dma);
 893                         }
 894                         usb_free_urb(urb);
 895                         dev->video_mode.isoc_ctl.urb[i] = NULL;
 896                 }
 897                 dev->video_mode.isoc_ctl.transfer_buffer[i] = NULL;
 898         }
 899
 900         kfree(dev->video_mode.isoc_ctl.urb);
 901         kfree(dev->video_mode.isoc_ctl.transfer_buffer);
 902         kfree(dma_q->p_left_data);
 903
 904         dev->video_mode.isoc_ctl.urb = NULL;
 905         dev->video_mode.isoc_ctl.transfer_buffer = NULL;
 906         dev->video_mode.isoc_ctl.num_bufs = 0;
 907         dma_q->p_left_data = NULL;
 908
 909         if (dev->mode_tv == 0)
 910                 cx231xx_capture_start(dev, 0, Raw_Video);
 911         else
 912                 cx231xx_capture_start(dev, 0, TS1_serial_mode);
 913
 914
 915 }
 916 EXPORT_SYMBOL_GPL(cx231xx_uninit_isoc);
 917
 918 /*
 919  * Stop and Deallocate URBs
 920  */
 921 void cx231xx_uninit_bulk(struct cx231xx *dev)
 922 {
 923         struct urb *urb;
 924         int i;
 925
 926         cx231xx_isocdbg("cx231xx: called cx231xx_uninit_bulk\n");
 927
 928         dev->video_mode.bulk_ctl.nfields = -1;
 929         for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
 930                 urb = dev->video_mode.bulk_ctl.urb[i];
 931                 if (urb) {
 932                         if (!irqs_disabled())
 933                                 usb_kill_urb(urb);
 934                         else
 935                                 usb_unlink_urb(urb);
 936
 937                         if (dev->video_mode.bulk_ctl.transfer_buffer[i]) {
 938                                 usb_free_coherent(dev->udev,
 939                                                 urb->transfer_buffer_length,
 940                                                 dev->video_mode.isoc_ctl.
 941                                                 transfer_buffer[i],
 942                                                 urb->transfer_dma);
 943                         }
 944                         usb_free_urb(urb);
 945                         dev->video_mode.bulk_ctl.urb[i] = NULL;
 946                 }
 947                 dev->video_mode.bulk_ctl.transfer_buffer[i] = NULL;
 948         }
 949
 950         kfree(dev->video_mode.bulk_ctl.urb);
 951         kfree(dev->video_mode.bulk_ctl.transfer_buffer);
 952
 953         dev->video_mode.bulk_ctl.urb = NULL;
 954         dev->video_mode.bulk_ctl.transfer_buffer = NULL;
 955         dev->video_mode.bulk_ctl.num_bufs = 0;
 956
 957         if (dev->mode_tv == 0)
 958                 cx231xx_capture_start(dev, 0, Raw_Video);
 959         else
 960                 cx231xx_capture_start(dev, 0, TS1_serial_mode);
 961
 962
 963 }
 964 EXPORT_SYMBOL_GPL(cx231xx_uninit_bulk);
 965
 966 /*
 967  * Allocate URBs and start IRQ
 968  */
 969 int cx231xx_init_isoc(struct cx231xx *dev, int max_packets,
 970                       int num_bufs, int max_pkt_size,
 971                       int (*isoc_copy) (struct cx231xx *dev, struct urb *urb))
 972 {
 973         struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
 974         int i;
 975         int sb_size, pipe;
 976         struct urb *urb;
 977         int j, k;
 978         int rc;
 979
 980         /* De-allocates all pending stuff */
 981         cx231xx_uninit_isoc(dev);
 982
 983         dma_q->p_left_data = kzalloc(4096, GFP_KERNEL);
 984         if (dma_q->p_left_data == NULL)
 985                 return -ENOMEM;
 986
 987         dev->video_mode.isoc_ctl.isoc_copy = isoc_copy;
 988         dev->video_mode.isoc_ctl.num_bufs = num_bufs;
 989         dma_q->pos = 0;
 990         dma_q->is_partial_line = 0;
 991         dma_q->last_sav = 0;
 992         dma_q->current_field = -1;
 993         dma_q->field1_done = 0;
 994         dma_q->lines_per_field = dev->height / 2;
 995         dma_q->bytes_left_in_line = dev->width << 1;
 996         dma_q->lines_completed = 0;
 997         dma_q->mpeg_buffer_done = 0;
 998         dma_q->left_data_count = 0;
 999         dma_q->mpeg_buffer_completed = 0;
1000         dma_q->add_ps_package_head = CX231XX_NEED_ADD_PS_PACKAGE_HEAD;
1001         dma_q->ps_head[0] = 0x00;
1002         dma_q->ps_head[1] = 0x00;
1003         dma_q->ps_head[2] = 0x01;
1004         dma_q->ps_head[3] = 0xBA;
1005         for (i = 0; i < 8; i++)
1006                 dma_q->partial_buf[i] = 0;
1007
1008         dev->video_mode.isoc_ctl.urb =
1009             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1010         if (!dev->video_mode.isoc_ctl.urb) {
1011                 dev_err(dev->dev,
1012                         "cannot alloc memory for usb buffers\n");
1013                 return -ENOMEM;
1014         }
1015
1016         dev->video_mode.isoc_ctl.transfer_buffer =
1017             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1018         if (!dev->video_mode.isoc_ctl.transfer_buffer) {
1019                 dev_err(dev->dev,
1020                         "cannot allocate memory for usbtransfer\n");
1021                 kfree(dev->video_mode.isoc_ctl.urb);
1022                 return -ENOMEM;
1023         }
1024
1025         dev->video_mode.isoc_ctl.max_pkt_size = max_pkt_size;
1026         dev->video_mode.isoc_ctl.buf = NULL;
1027
1028         sb_size = max_packets * dev->video_mode.isoc_ctl.max_pkt_size;
1029
1030         if (dev->mode_tv == 1)
1031                 dev->video_mode.end_point_addr = 0x81;
1032         else
1033                 dev->video_mode.end_point_addr = 0x84;
1034
1035
1036         /* allocate urbs and transfer buffers */
1037         for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1038                 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
1039                 if (!urb) {
1040                         dev_err(dev->dev,
1041                                 "cannot alloc isoc_ctl.urb %i\n", i);
1042                         cx231xx_uninit_isoc(dev);
1043                         return -ENOMEM;
1044                 }
1045                 dev->video_mode.isoc_ctl.urb[i] = urb;
1046
1047                 dev->video_mode.isoc_ctl.transfer_buffer[i] =
1048                     usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1049                                        &urb->transfer_dma);
1050                 if (!dev->video_mode.isoc_ctl.transfer_buffer[i]) {
1051                         dev_err(dev->dev,
1052                                 "unable to allocate %i bytes for transfer buffer %i%s\n",
1053                                 sb_size, i,
1054                                 in_interrupt() ? " while in int" : "");
1055                         cx231xx_uninit_isoc(dev);
1056                         return -ENOMEM;
1057                 }
1058                 memset(dev->video_mode.isoc_ctl.transfer_buffer[i], 0, sb_size);
1059
1060                 pipe =
1061                     usb_rcvisocpipe(dev->udev, dev->video_mode.end_point_addr);
1062
1063                 usb_fill_int_urb(urb, dev->udev, pipe,
1064                                  dev->video_mode.isoc_ctl.transfer_buffer[i],
1065                                  sb_size, cx231xx_isoc_irq_callback, dma_q, 1);
1066
1067                 urb->number_of_packets = max_packets;
1068                 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
1069
1070                 k = 0;
1071                 for (j = 0; j < max_packets; j++) {
1072                         urb->iso_frame_desc[j].offset = k;
1073                         urb->iso_frame_desc[j].length =
1074                             dev->video_mode.isoc_ctl.max_pkt_size;
1075                         k += dev->video_mode.isoc_ctl.max_pkt_size;
1076                 }
1077         }
1078
1079         init_waitqueue_head(&dma_q->wq);
1080
1081         /* submit urbs and enables IRQ */
1082         for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1083                 rc = usb_submit_urb(dev->video_mode.isoc_ctl.urb[i],
1084                                     GFP_ATOMIC);
1085                 if (rc) {
1086                         dev_err(dev->dev,
1087                                 "submit of urb %i failed (error=%i)\n", i,
1088                                 rc);
1089                         cx231xx_uninit_isoc(dev);
1090                         return rc;
1091                 }
1092         }
1093
1094         if (dev->mode_tv == 0)
1095                 cx231xx_capture_start(dev, 1, Raw_Video);
1096         else
1097                 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1098
1099         return 0;
1100 }
1101 EXPORT_SYMBOL_GPL(cx231xx_init_isoc);
1102
1103 /*
1104  * Allocate URBs and start IRQ
1105  */
1106 int cx231xx_init_bulk(struct cx231xx *dev, int max_packets,
1107                       int num_bufs, int max_pkt_size,
1108                       int (*bulk_copy) (struct cx231xx *dev, struct urb *urb))
1109 {
1110         struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
1111         int i;
1112         int sb_size, pipe;
1113         struct urb *urb;
1114         int rc;
1115
1116         dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
1117
1118         cx231xx_coredbg("Setting Video mux to %d\n", dev->video_input);
1119
1120         video_mux(dev, dev->video_input);
1121
1122         /* De-allocates all pending stuff */
1123         cx231xx_uninit_bulk(dev);
1124
1125         dev->video_mode.bulk_ctl.bulk_copy = bulk_copy;
1126         dev->video_mode.bulk_ctl.num_bufs = num_bufs;
1127         dma_q->pos = 0;
1128         dma_q->is_partial_line = 0;
1129         dma_q->last_sav = 0;
1130         dma_q->current_field = -1;
1131         dma_q->field1_done = 0;
1132         dma_q->lines_per_field = dev->height / 2;
1133         dma_q->bytes_left_in_line = dev->width << 1;
1134         dma_q->lines_completed = 0;
1135         dma_q->mpeg_buffer_done = 0;
1136         dma_q->left_data_count = 0;
1137         dma_q->mpeg_buffer_completed = 0;
1138         dma_q->ps_head[0] = 0x00;
1139         dma_q->ps_head[1] = 0x00;
1140         dma_q->ps_head[2] = 0x01;
1141         dma_q->ps_head[3] = 0xBA;
1142         for (i = 0; i < 8; i++)
1143                 dma_q->partial_buf[i] = 0;
1144
1145         dev->video_mode.bulk_ctl.urb =
1146             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1147         if (!dev->video_mode.bulk_ctl.urb) {
1148                 dev_err(dev->dev,
1149                         "cannot alloc memory for usb buffers\n");
1150                 return -ENOMEM;
1151         }
1152
1153         dev->video_mode.bulk_ctl.transfer_buffer =
1154             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1155         if (!dev->video_mode.bulk_ctl.transfer_buffer) {
1156                 dev_err(dev->dev,
1157                         "cannot allocate memory for usbtransfer\n");
1158                 kfree(dev->video_mode.bulk_ctl.urb);
1159                 return -ENOMEM;
1160         }
1161
1162         dev->video_mode.bulk_ctl.max_pkt_size = max_pkt_size;
1163         dev->video_mode.bulk_ctl.buf = NULL;
1164
1165         sb_size = max_packets * dev->video_mode.bulk_ctl.max_pkt_size;
1166
1167         if (dev->mode_tv == 1)
1168                 dev->video_mode.end_point_addr = 0x81;
1169         else
1170                 dev->video_mode.end_point_addr = 0x84;
1171
1172
1173         /* allocate urbs and transfer buffers */
1174         for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1175                 urb = usb_alloc_urb(0, GFP_KERNEL);
1176                 if (!urb) {
1177                         dev_err(dev->dev,
1178                                 "cannot alloc bulk_ctl.urb %i\n", i);
1179                         cx231xx_uninit_bulk(dev);
1180                         return -ENOMEM;
1181                 }
1182                 dev->video_mode.bulk_ctl.urb[i] = urb;
1183                 urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
1184
1185                 dev->video_mode.bulk_ctl.transfer_buffer[i] =
1186                     usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1187                                      &urb->transfer_dma);
1188                 if (!dev->video_mode.bulk_ctl.transfer_buffer[i]) {
1189                         dev_err(dev->dev,
1190                                 "unable to allocate %i bytes for transfer buffer %i%s\n",
1191                                 sb_size, i,
1192                                 in_interrupt() ? " while in int" : "");
1193                         cx231xx_uninit_bulk(dev);
1194                         return -ENOMEM;
1195                 }
1196                 memset(dev->video_mode.bulk_ctl.transfer_buffer[i], 0, sb_size);
1197
1198                 pipe = usb_rcvbulkpipe(dev->udev,
1199                                  dev->video_mode.end_point_addr);
1200                 usb_fill_bulk_urb(urb, dev->udev, pipe,
1201                                   dev->video_mode.bulk_ctl.transfer_buffer[i],
1202                                   sb_size, cx231xx_bulk_irq_callback, dma_q);
1203         }
1204
1205         init_waitqueue_head(&dma_q->wq);
1206
1207         /* submit urbs and enables IRQ */
1208         for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1209                 rc = usb_submit_urb(dev->video_mode.bulk_ctl.urb[i],
1210                                     GFP_ATOMIC);
1211                 if (rc) {
1212                         dev_err(dev->dev,
1213                                 "submit of urb %i failed (error=%i)\n", i, rc);
1214                         cx231xx_uninit_bulk(dev);
1215                         return rc;
1216                 }
1217         }
1218
1219         if (dev->mode_tv == 0)
1220                 cx231xx_capture_start(dev, 1, Raw_Video);
1221         else
1222                 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1223
1224         return 0;
1225 }
1226 EXPORT_SYMBOL_GPL(cx231xx_init_bulk);
1227 void cx231xx_stop_TS1(struct cx231xx *dev)
1228 {
1229         u8 val[4] = { 0, 0, 0, 0 };
1230
1231         val[0] = 0x00;
1232         val[1] = 0x03;
1233         val[2] = 0x00;
1234         val[3] = 0x00;
1235         cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1236                         TS_MODE_REG, val, 4);
1237
1238         val[0] = 0x00;
1239         val[1] = 0x70;
1240         val[2] = 0x04;
1241         val[3] = 0x00;
1242         cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1243                         TS1_CFG_REG, val, 4);
1244 }
1245 /* EXPORT_SYMBOL_GPL(cx231xx_stop_TS1); */
1246 void cx231xx_start_TS1(struct cx231xx *dev)
1247 {
1248         u8 val[4] = { 0, 0, 0, 0 };
1249
1250         val[0] = 0x03;
1251         val[1] = 0x03;
1252         val[2] = 0x00;
1253         val[3] = 0x00;
1254         cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1255                         TS_MODE_REG, val, 4);
1256
1257         val[0] = 0x04;
1258         val[1] = 0xA3;
1259         val[2] = 0x3B;
1260         val[3] = 0x00;
1261         cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1262                         TS1_CFG_REG, val, 4);
1263 }
1264 /* EXPORT_SYMBOL_GPL(cx231xx_start_TS1); */
1265 /*****************************************************************
1266 *             Device Init/UnInit functions                       *
1267 ******************************************************************/
1268 int cx231xx_dev_init(struct cx231xx *dev)
1269 {
1270         int errCode = 0;
1271
1272         /* Initialize I2C bus */
1273
1274         /* External Master 1 Bus */
1275         dev->i2c_bus[0].nr = 0;
1276         dev->i2c_bus[0].dev = dev;
1277         dev->i2c_bus[0].i2c_period = I2C_SPEED_100K;    /* 100 KHz */
1278         dev->i2c_bus[0].i2c_nostop = 0;
1279         dev->i2c_bus[0].i2c_reserve = 0;
1280
1281         /* External Master 2 Bus */
1282         dev->i2c_bus[1].nr = 1;
1283         dev->i2c_bus[1].dev = dev;
1284         dev->i2c_bus[1].i2c_period = I2C_SPEED_100K;    /* 100 KHz */
1285         dev->i2c_bus[1].i2c_nostop = 0;
1286         dev->i2c_bus[1].i2c_reserve = 0;
1287
1288         /* Internal Master 3 Bus */
1289         dev->i2c_bus[2].nr = 2;
1290         dev->i2c_bus[2].dev = dev;
1291         dev->i2c_bus[2].i2c_period = I2C_SPEED_100K;    /* 100kHz */
1292         dev->i2c_bus[2].i2c_nostop = 0;
1293         dev->i2c_bus[2].i2c_reserve = 0;
1294
1295         /* register I2C buses */
1296         cx231xx_i2c_register(&dev->i2c_bus[0]);
1297         cx231xx_i2c_register(&dev->i2c_bus[1]);
1298         cx231xx_i2c_register(&dev->i2c_bus[2]);
1299
1300         cx231xx_i2c_mux_register(dev, 0);
1301         cx231xx_i2c_mux_register(dev, 1);
1302
1303         /* scan the real bus segments in the order of physical port numbers */
1304         cx231xx_do_i2c_scan(dev, I2C_0);
1305         cx231xx_do_i2c_scan(dev, I2C_1_MUX_1);
1306         cx231xx_do_i2c_scan(dev, I2C_2);
1307         cx231xx_do_i2c_scan(dev, I2C_1_MUX_3);
1308
1309         /* init hardware */
1310         /* Note : with out calling set power mode function,
1311         afe can not be set up correctly */
1312         if (dev->board.external_av) {
1313                 errCode = cx231xx_set_power_mode(dev,
1314                                  POLARIS_AVMODE_ENXTERNAL_AV);
1315                 if (errCode < 0) {
1316                         dev_err(dev->dev,
1317                                 "%s: Failed to set Power - errCode [%d]!\n",
1318                                 __func__, errCode);
1319                         return errCode;
1320                 }
1321         } else {
1322                 errCode = cx231xx_set_power_mode(dev,
1323                                  POLARIS_AVMODE_ANALOGT_TV);
1324                 if (errCode < 0) {
1325                         dev_err(dev->dev,
1326                                 "%s: Failed to set Power - errCode [%d]!\n",
1327                                 __func__, errCode);
1328                         return errCode;
1329                 }
1330         }
1331
1332         /* reset the Tuner, if it is a Xceive tuner */
1333         if ((dev->board.tuner_type == TUNER_XC5000) ||
1334             (dev->board.tuner_type == TUNER_XC2028))
1335                         cx231xx_gpio_set(dev, dev->board.tuner_gpio);
1336
1337         /* initialize Colibri block */
1338         errCode = cx231xx_afe_init_super_block(dev, 0x23c);
1339         if (errCode < 0) {
1340                 dev_err(dev->dev,
1341                         "%s: cx231xx_afe init super block - errCode [%d]!\n",
1342                         __func__, errCode);
1343                 return errCode;
1344         }
1345         errCode = cx231xx_afe_init_channels(dev);
1346         if (errCode < 0) {
1347                 dev_err(dev->dev,
1348                         "%s: cx231xx_afe init channels - errCode [%d]!\n",
1349                         __func__, errCode);
1350                 return errCode;
1351         }
1352
1353         /* Set DIF in By pass mode */
1354         errCode = cx231xx_dif_set_standard(dev, DIF_USE_BASEBAND);
1355         if (errCode < 0) {
1356                 dev_err(dev->dev,
1357                         "%s: cx231xx_dif set to By pass mode - errCode [%d]!\n",
1358                         __func__, errCode);
1359                 return errCode;
1360         }
1361
1362         /* I2S block related functions */
1363         errCode = cx231xx_i2s_blk_initialize(dev);
1364         if (errCode < 0) {
1365                 dev_err(dev->dev,
1366                         "%s: cx231xx_i2s block initialize - errCode [%d]!\n",
1367                         __func__, errCode);
1368                 return errCode;
1369         }
1370
1371         /* init control pins */
1372         errCode = cx231xx_init_ctrl_pin_status(dev);
1373         if (errCode < 0) {
1374                 dev_err(dev->dev,
1375                         "%s: cx231xx_init ctrl pins - errCode [%d]!\n",
1376                         __func__, errCode);
1377                 return errCode;
1378         }
1379
1380         /* set AGC mode to Analog */
1381         switch (dev->model) {
1382         case CX231XX_BOARD_CNXT_CARRAERA:
1383         case CX231XX_BOARD_CNXT_RDE_250:
1384         case CX231XX_BOARD_CNXT_SHELBY:
1385         case CX231XX_BOARD_CNXT_RDU_250:
1386         errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
1387                 break;
1388         case CX231XX_BOARD_CNXT_RDE_253S:
1389         case CX231XX_BOARD_CNXT_RDU_253S:
1390         case CX231XX_BOARD_HAUPPAUGE_EXETER:
1391         case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
1392         case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
1393         case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
1394         case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
1395         errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
1396                 break;
1397         default:
1398                 break;
1399         }
1400         if (errCode < 0) {
1401                 dev_err(dev->dev,
1402                         "%s: cx231xx_AGC mode to Analog - errCode [%d]!\n",
1403                         __func__, errCode);
1404                 return errCode;
1405         }
1406
1407         /* set all alternate settings to zero initially */
1408         cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
1409         cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1410         cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
1411         if (dev->board.has_dvb)
1412                 cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
1413
1414         errCode = 0;
1415         return errCode;
1416 }
1417 EXPORT_SYMBOL_GPL(cx231xx_dev_init);
1418
1419 void cx231xx_dev_uninit(struct cx231xx *dev)
1420 {
1421         /* Un Initialize I2C bus */
1422         cx231xx_i2c_mux_unregister(dev, 1);
1423         cx231xx_i2c_mux_unregister(dev, 0);
1424         cx231xx_i2c_unregister(&dev->i2c_bus[2]);
1425         cx231xx_i2c_unregister(&dev->i2c_bus[1]);
1426         cx231xx_i2c_unregister(&dev->i2c_bus[0]);
1427 }
1428 EXPORT_SYMBOL_GPL(cx231xx_dev_uninit);
1429
1430 /*****************************************************************
1431 *              G P I O related functions                         *
1432 ******************************************************************/
1433 int cx231xx_send_gpio_cmd(struct cx231xx *dev, u32 gpio_bit, u8 *gpio_val,
1434                           u8 len, u8 request, u8 direction)
1435 {
1436         int status = 0;
1437         struct VENDOR_REQUEST_IN ven_req;
1438
1439         /* Set wValue */
1440         ven_req.wValue = (u16) (gpio_bit >> 16 & 0xffff);
1441
1442         /* set request */
1443         if (!request) {
1444                 if (direction)
1445                         ven_req.bRequest = VRT_GET_GPIO;        /* 0x8 gpio */
1446                 else
1447                         ven_req.bRequest = VRT_SET_GPIO;        /* 0x9 gpio */
1448         } else {
1449                 if (direction)
1450                         ven_req.bRequest = VRT_GET_GPIE;        /* 0xa gpie */
1451                 else
1452                         ven_req.bRequest = VRT_SET_GPIE;        /* 0xb gpie */
1453         }
1454
1455         /* set index value */
1456         ven_req.wIndex = (u16) (gpio_bit & 0xffff);
1457
1458         /* set wLength value */
1459         ven_req.wLength = len;
1460
1461         /* set bData value */
1462         ven_req.bData = 0;
1463
1464         /* set the buffer for read / write */
1465         ven_req.pBuff = gpio_val;
1466
1467         /* set the direction */
1468         if (direction) {
1469                 ven_req.direction = USB_DIR_IN;
1470                 memset(ven_req.pBuff, 0x00, ven_req.wLength);
1471         } else
1472                 ven_req.direction = USB_DIR_OUT;
1473
1474
1475         /* call common vendor command request */
1476         status = cx231xx_send_vendor_cmd(dev, &ven_req);
1477         if (status < 0) {
1478                 dev_err(dev->dev, "%s: failed with status -%d\n",
1479                         __func__, status);
1480         }
1481
1482         return status;
1483 }
1484 EXPORT_SYMBOL_GPL(cx231xx_send_gpio_cmd);
1485
1486 /*****************************************************************
1487  *    C O N T R O L - Register R E A D / W R I T E functions     *
1488  *****************************************************************/
1489 int cx231xx_mode_register(struct cx231xx *dev, u16 address, u32 mode)
1490 {
1491         u8 value[4] = { 0x0, 0x0, 0x0, 0x0 };
1492         u32 tmp = 0;
1493         int status = 0;
1494
1495         status =
1496             cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, address, value, 4);
1497         if (status < 0)
1498                 return status;
1499
1500         tmp = le32_to_cpu(*((__le32 *) value));
1501         tmp |= mode;
1502
1503         value[0] = (u8) tmp;
1504         value[1] = (u8) (tmp >> 8);
1505         value[2] = (u8) (tmp >> 16);
1506         value[3] = (u8) (tmp >> 24);
1507
1508         status =
1509             cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, address, value, 4);
1510
1511         return status;
1512 }
1513
1514 /*****************************************************************
1515  *            I 2 C Internal C O N T R O L   functions           *
1516  *****************************************************************/
1517 int cx231xx_read_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1518                           u8 saddr_len, u32 *data, u8 data_len, int master)
1519 {
1520         int status = 0;
1521         struct cx231xx_i2c_xfer_data req_data;
1522         u8 value[64] = "0";
1523
1524         if (saddr_len == 0)
1525                 saddr = 0;
1526         else if (saddr_len == 1)
1527                 saddr &= 0xff;
1528
1529         /* prepare xfer_data struct */
1530         req_data.dev_addr = dev_addr >> 1;
1531         req_data.direction = I2C_M_RD;
1532         req_data.saddr_len = saddr_len;
1533         req_data.saddr_dat = saddr;
1534         req_data.buf_size = data_len;
1535         req_data.p_buffer = (u8 *) value;
1536
1537         /* usb send command */
1538         if (master == 0)
1539                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1540                                          &req_data);
1541         else if (master == 1)
1542                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1543                                          &req_data);
1544         else if (master == 2)
1545                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1546                                          &req_data);
1547
1548         if (status >= 0) {
1549                 /* Copy the data read back to main buffer */
1550                 if (data_len == 1)
1551                         *data = value[0];
1552                 else if (data_len == 4)
1553                         *data =
1554                             value[0] | value[1] << 8 | value[2] << 16 | value[3]
1555                             << 24;
1556                 else if (data_len > 4)
1557                         *data = value[saddr];
1558         }
1559
1560         return status;
1561 }
1562
1563 int cx231xx_write_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1564                            u8 saddr_len, u32 data, u8 data_len, int master)
1565 {
1566         int status = 0;
1567         u8 value[4] = { 0, 0, 0, 0 };
1568         struct cx231xx_i2c_xfer_data req_data;
1569
1570         value[0] = (u8) data;
1571         value[1] = (u8) (data >> 8);
1572         value[2] = (u8) (data >> 16);
1573         value[3] = (u8) (data >> 24);
1574
1575         if (saddr_len == 0)
1576                 saddr = 0;
1577         else if (saddr_len == 1)
1578                 saddr &= 0xff;
1579
1580         /* prepare xfer_data struct */
1581         req_data.dev_addr = dev_addr >> 1;
1582         req_data.direction = 0;
1583         req_data.saddr_len = saddr_len;
1584         req_data.saddr_dat = saddr;
1585         req_data.buf_size = data_len;
1586         req_data.p_buffer = value;
1587
1588         /* usb send command */
1589         if (master == 0)
1590                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1591                                  &req_data);
1592         else if (master == 1)
1593                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1594                                  &req_data);
1595         else if (master == 2)
1596                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1597                                  &req_data);
1598
1599         return status;
1600 }
1601
1602 int cx231xx_read_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1603                           u8 saddr_len, u32 *data, u8 data_len)
1604 {
1605         int status = 0;
1606         struct cx231xx_i2c_xfer_data req_data;
1607         u8 value[4] = { 0, 0, 0, 0 };
1608
1609         if (saddr_len == 0)
1610                 saddr = 0;
1611         else if (saddr_len == 1)
1612                 saddr &= 0xff;
1613
1614         /* prepare xfer_data struct */
1615         req_data.dev_addr = dev_addr >> 1;
1616         req_data.direction = I2C_M_RD;
1617         req_data.saddr_len = saddr_len;
1618         req_data.saddr_dat = saddr;
1619         req_data.buf_size = data_len;
1620         req_data.p_buffer = (u8 *) value;
1621
1622         /* usb send command */
1623         status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1624
1625         if (status >= 0) {
1626                 /* Copy the data read back to main buffer */
1627                 if (data_len == 1)
1628                         *data = value[0];
1629                 else
1630                         *data =
1631                             value[0] | value[1] << 8 | value[2] << 16 | value[3]
1632                             << 24;
1633         }
1634
1635         return status;
1636 }
1637
1638 int cx231xx_write_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1639                            u8 saddr_len, u32 data, u8 data_len)
1640 {
1641         int status = 0;
1642         u8 value[4] = { 0, 0, 0, 0 };
1643         struct cx231xx_i2c_xfer_data req_data;
1644
1645         value[0] = (u8) data;
1646         value[1] = (u8) (data >> 8);
1647         value[2] = (u8) (data >> 16);
1648         value[3] = (u8) (data >> 24);
1649
1650         if (saddr_len == 0)
1651                 saddr = 0;
1652         else if (saddr_len == 1)
1653                 saddr &= 0xff;
1654
1655         /* prepare xfer_data struct */
1656         req_data.dev_addr = dev_addr >> 1;
1657         req_data.direction = 0;
1658         req_data.saddr_len = saddr_len;
1659         req_data.saddr_dat = saddr;
1660         req_data.buf_size = data_len;
1661         req_data.p_buffer = value;
1662
1663         /* usb send command */
1664         status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1665
1666         return status;
1667 }
1668
1669 int cx231xx_reg_mask_write(struct cx231xx *dev, u8 dev_addr, u8 size,
1670                            u16 register_address, u8 bit_start, u8 bit_end,
1671                            u32 value)
1672 {
1673         int status = 0;
1674         u32 tmp;
1675         u32 mask = 0;
1676         int i;
1677
1678         if (bit_start > (size - 1) || bit_end > (size - 1))
1679                 return -1;
1680
1681         if (size == 8) {
1682                 status =
1683                     cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1684                                           &tmp, 1);
1685         } else {
1686                 status =
1687                     cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1688                                           &tmp, 4);
1689         }
1690
1691         if (status < 0)
1692                 return status;
1693
1694         mask = 1 << bit_end;
1695         for (i = bit_end; i > bit_start && i > 0; i--)
1696                 mask = mask + (1 << (i - 1));
1697
1698         value <<= bit_start;
1699
1700         if (size == 8) {
1701                 tmp &= ~mask;
1702                 tmp |= value;
1703                 tmp &= 0xff;
1704                 status =
1705                     cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1706                                            tmp, 1);
1707         } else {
1708                 tmp &= ~mask;
1709                 tmp |= value;
1710                 status =
1711                     cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1712                                            tmp, 4);
1713         }
1714
1715         return status;
1716 }
1717
1718 int cx231xx_read_modify_write_i2c_dword(struct cx231xx *dev, u8 dev_addr,
1719                                         u16 saddr, u32 mask, u32 value)
1720 {
1721         u32 temp;
1722         int status = 0;
1723
1724         status = cx231xx_read_i2c_data(dev, dev_addr, saddr, 2, &temp, 4);
1725
1726         if (status < 0)
1727                 return status;
1728
1729         temp &= ~mask;
1730         temp |= value;
1731
1732         status = cx231xx_write_i2c_data(dev, dev_addr, saddr, 2, temp, 4);
1733
1734         return status;
1735 }
1736
1737 u32 cx231xx_set_field(u32 field_mask, u32 data)
1738 {
1739         u32 temp;
1740
1741         for (temp = field_mask; (temp & 1) == 0; temp >>= 1)
1742                 data <<= 1;
1743
1744         return data;
1745 }