kernel/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                 unsend_size = 0;
 361                 pdata = ven_req->pBuff;
 362
 363
 364                 unsend_size = ven_req->wLength;
 365
 366                 /* the first package */
 367                 ven_req->wValue = ven_req->wValue & 0xFFFB;
 368                 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x2;
 369                 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
 370                         ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 371                         ven_req->wValue, ven_req->wIndex, pdata,
 372                         0x0004, HZ);
 373                 unsend_size = unsend_size - 4;
 374
 375                 /* the middle package */
 376                 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x42;
 377                 while (unsend_size - 4 > 0) {
 378                         pdata = pdata + 4;
 379                         ret = __usb_control_msg(dev, pipe,
 380                                 ven_req->bRequest,
 381                                 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 382                                 ven_req->wValue, ven_req->wIndex, pdata,
 383                                 0x0004, HZ);
 384                         unsend_size = unsend_size - 4;
 385                 }
 386
 387                 /* the last package */
 388                 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x40;
 389                 pdata = pdata + 4;
 390                 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
 391                         ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 392                         ven_req->wValue, ven_req->wIndex, pdata,
 393                         unsend_size, HZ);
 394         } else {
 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,
 398                                 ven_req->pBuff, ven_req->wLength, HZ);
 399         }
 400
 401         return ret;
 402 }
 403
 404 /*
 405  * cx231xx_write_ctrl_reg()
 406  * sends data to the usb device, specifying bRequest
 407  */
 408 int cx231xx_write_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg, char *buf,
 409                            int len)
 410 {
 411         u8 val = 0;
 412         int ret;
 413         int pipe = usb_sndctrlpipe(dev->udev, 0);
 414
 415         if (dev->state & DEV_DISCONNECTED)
 416                 return -ENODEV;
 417
 418         if ((len < 1) || (len > URB_MAX_CTRL_SIZE))
 419                 return -EINVAL;
 420
 421         switch (len) {
 422         case 1:
 423                 val = ENABLE_ONE_BYTE;
 424                 break;
 425         case 2:
 426                 val = ENABLE_TWE_BYTE;
 427                 break;
 428         case 3:
 429                 val = ENABLE_THREE_BYTE;
 430                 break;
 431         case 4:
 432                 val = ENABLE_FOUR_BYTE;
 433                 break;
 434         default:
 435                 val = 0xFF;     /* invalid option */
 436         }
 437
 438         if (val == 0xFF)
 439                 return -EINVAL;
 440
 441         if (reg_debug) {
 442                 int byte;
 443
 444                 cx231xx_isocdbg("(pipe 0x%08x): "
 445                         "OUT: %02x %02x %02x %02x %02x %02x %02x %02x >>>",
 446                         pipe,
 447                         USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 448                         req, 0, val, reg & 0xff,
 449                         reg >> 8, len & 0xff, len >> 8);
 450
 451                 for (byte = 0; byte < len; byte++)
 452                         cx231xx_isocdbg(" %02x", (unsigned char)buf[byte]);
 453                 cx231xx_isocdbg("\n");
 454         }
 455
 456         ret = __usb_control_msg(dev, pipe, req,
 457                               USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 458                               val, reg, buf, len, HZ);
 459
 460         return ret;
 461 }
 462
 463 /****************************************************************
 464 *           USB Alternate Setting functions                     *
 465 *****************************************************************/
 466
 467 int cx231xx_set_video_alternate(struct cx231xx *dev)
 468 {
 469         int errCode, prev_alt = dev->video_mode.alt;
 470         unsigned int min_pkt_size = dev->width * 2 + 4;
 471         u32 usb_interface_index = 0;
 472
 473         /* When image size is bigger than a certain value,
 474            the frame size should be increased, otherwise, only
 475            green screen will be received.
 476          */
 477         if (dev->width * 2 * dev->height > 720 * 240 * 2)
 478                 min_pkt_size *= 2;
 479
 480         if (dev->width > 360) {
 481                 /* resolutions: 720,704,640 */
 482                 dev->video_mode.alt = 3;
 483         } else if (dev->width > 180) {
 484                 /* resolutions: 360,352,320,240 */
 485                 dev->video_mode.alt = 2;
 486         } else if (dev->width > 0) {
 487                 /* resolutions: 180,176,160,128,88 */
 488                 dev->video_mode.alt = 1;
 489         } else {
 490                 /* Change to alt0 BULK to release USB bandwidth */
 491                 dev->video_mode.alt = 0;
 492         }
 493
 494         if (dev->USE_ISO == 0)
 495                 dev->video_mode.alt = 0;
 496
 497         cx231xx_coredbg("dev->video_mode.alt= %d\n", dev->video_mode.alt);
 498
 499         /* Get the correct video interface Index */
 500         usb_interface_index =
 501             dev->current_pcb_config.hs_config_info[0].interface_info.
 502             video_index + 1;
 503
 504         if (dev->video_mode.alt != prev_alt) {
 505                 cx231xx_coredbg("minimum isoc packet size: %u (alt=%d)\n",
 506                                 min_pkt_size, dev->video_mode.alt);
 507
 508                 if (dev->video_mode.alt_max_pkt_size != NULL)
 509                         dev->video_mode.max_pkt_size =
 510                         dev->video_mode.alt_max_pkt_size[dev->video_mode.alt];
 511                 cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u\n",
 512                                 dev->video_mode.alt,
 513                                 dev->video_mode.max_pkt_size);
 514                 errCode =
 515                     usb_set_interface(dev->udev, usb_interface_index,
 516                                       dev->video_mode.alt);
 517                 if (errCode < 0) {
 518                         dev_err(dev->dev,
 519                                 "cannot change alt number to %d (error=%i)\n",
 520                                 dev->video_mode.alt, errCode);
 521                         return errCode;
 522                 }
 523         }
 524         return 0;
 525 }
 526
 527 int cx231xx_set_alt_setting(struct cx231xx *dev, u8 index, u8 alt)
 528 {
 529         int status = 0;
 530         u32 usb_interface_index = 0;
 531         u32 max_pkt_size = 0;
 532
 533         switch (index) {
 534         case INDEX_TS1:
 535                 usb_interface_index =
 536                     dev->current_pcb_config.hs_config_info[0].interface_info.
 537                     ts1_index + 1;
 538                 dev->ts1_mode.alt = alt;
 539                 if (dev->ts1_mode.alt_max_pkt_size != NULL)
 540                         max_pkt_size = dev->ts1_mode.max_pkt_size =
 541                             dev->ts1_mode.alt_max_pkt_size[dev->ts1_mode.alt];
 542                 break;
 543         case INDEX_TS2:
 544                 usb_interface_index =
 545                     dev->current_pcb_config.hs_config_info[0].interface_info.
 546                     ts2_index + 1;
 547                 break;
 548         case INDEX_AUDIO:
 549                 usb_interface_index =
 550                     dev->current_pcb_config.hs_config_info[0].interface_info.
 551                     audio_index + 1;
 552                 dev->adev.alt = alt;
 553                 if (dev->adev.alt_max_pkt_size != NULL)
 554                         max_pkt_size = dev->adev.max_pkt_size =
 555                             dev->adev.alt_max_pkt_size[dev->adev.alt];
 556                 break;
 557         case INDEX_VIDEO:
 558                 usb_interface_index =
 559                     dev->current_pcb_config.hs_config_info[0].interface_info.
 560                     video_index + 1;
 561                 dev->video_mode.alt = alt;
 562                 if (dev->video_mode.alt_max_pkt_size != NULL)
 563                         max_pkt_size = dev->video_mode.max_pkt_size =
 564                             dev->video_mode.alt_max_pkt_size[dev->video_mode.
 565                                                              alt];
 566                 break;
 567         case INDEX_VANC:
 568                 if (dev->board.no_alt_vanc)
 569                         return 0;
 570                 usb_interface_index =
 571                     dev->current_pcb_config.hs_config_info[0].interface_info.
 572                     vanc_index + 1;
 573                 dev->vbi_mode.alt = alt;
 574                 if (dev->vbi_mode.alt_max_pkt_size != NULL)
 575                         max_pkt_size = dev->vbi_mode.max_pkt_size =
 576                             dev->vbi_mode.alt_max_pkt_size[dev->vbi_mode.alt];
 577                 break;
 578         case INDEX_HANC:
 579                 usb_interface_index =
 580                     dev->current_pcb_config.hs_config_info[0].interface_info.
 581                     hanc_index + 1;
 582                 dev->sliced_cc_mode.alt = alt;
 583                 if (dev->sliced_cc_mode.alt_max_pkt_size != NULL)
 584                         max_pkt_size = dev->sliced_cc_mode.max_pkt_size =
 585                             dev->sliced_cc_mode.alt_max_pkt_size[dev->
 586                                                                  sliced_cc_mode.
 587                                                                  alt];
 588                 break;
 589         default:
 590                 break;
 591         }
 592
 593         if (alt > 0 && max_pkt_size == 0) {
 594                 dev_err(dev->dev,
 595                         "can't change interface %d alt no. to %d: Max. Pkt size = 0\n",
 596                         usb_interface_index, alt);
 597                 /*To workaround error number=-71 on EP0 for videograbber,
 598                  need add following codes.*/
 599                 if (dev->board.no_alt_vanc)
 600                         return -1;
 601         }
 602
 603         cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u,"
 604                         "Interface = %d\n", alt, max_pkt_size,
 605                         usb_interface_index);
 606
 607         if (usb_interface_index > 0) {
 608                 status = usb_set_interface(dev->udev, usb_interface_index, alt);
 609                 if (status < 0) {
 610                         dev_err(dev->dev,
 611                                 "can't change interface %d alt no. to %d (err=%i)\n",
 612                                 usb_interface_index, alt, status);
 613                         return status;
 614                 }
 615         }
 616
 617         return status;
 618 }
 619 EXPORT_SYMBOL_GPL(cx231xx_set_alt_setting);
 620
 621 int cx231xx_gpio_set(struct cx231xx *dev, struct cx231xx_reg_seq *gpio)
 622 {
 623         int rc = 0;
 624
 625         if (!gpio)
 626                 return rc;
 627
 628         /* Send GPIO reset sequences specified at board entry */
 629         while (gpio->sleep >= 0) {
 630                 rc = cx231xx_set_gpio_value(dev, gpio->bit, gpio->val);
 631                 if (rc < 0)
 632                         return rc;
 633
 634                 if (gpio->sleep > 0)
 635                         msleep(gpio->sleep);
 636
 637                 gpio++;
 638         }
 639         return rc;
 640 }
 641
 642 int cx231xx_demod_reset(struct cx231xx *dev)
 643 {
 644
 645         u8 status = 0;
 646         u8 value[4] = { 0, 0, 0, 0 };
 647
 648         status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
 649                                  value, 4);
 650
 651         cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
 652                         value[0], value[1], value[2], value[3]);
 653
 654         cx231xx_coredbg("Enter cx231xx_demod_reset()\n");
 655
 656         value[1] = (u8) 0x3;
 657         status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
 658                                         PWR_CTL_EN, value, 4);
 659         msleep(10);
 660
 661         value[1] = (u8) 0x0;
 662         status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
 663                                         PWR_CTL_EN, value, 4);
 664         msleep(10);
 665
 666         value[1] = (u8) 0x3;
 667         status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
 668                                         PWR_CTL_EN, value, 4);
 669         msleep(10);
 670
 671         status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
 672                                  value, 4);
 673
 674         cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
 675                         value[0], value[1], value[2], value[3]);
 676
 677         return status;
 678 }
 679 EXPORT_SYMBOL_GPL(cx231xx_demod_reset);
 680 int is_fw_load(struct cx231xx *dev)
 681 {
 682         return cx231xx_check_fw(dev);
 683 }
 684 EXPORT_SYMBOL_GPL(is_fw_load);
 685
 686 int cx231xx_set_mode(struct cx231xx *dev, enum cx231xx_mode set_mode)
 687 {
 688         int errCode = 0;
 689
 690         if (dev->mode == set_mode)
 691                 return 0;
 692
 693         if (set_mode == CX231XX_SUSPEND) {
 694                 /* Set the chip in power saving mode */
 695                 dev->mode = set_mode;
 696         }
 697
 698         /* Resource is locked */
 699         if (dev->mode != CX231XX_SUSPEND)
 700                 return -EINVAL;
 701
 702         dev->mode = set_mode;
 703
 704         if (dev->mode == CX231XX_DIGITAL_MODE)/* Set Digital power mode */ {
 705         /* set AGC mode to Digital */
 706                 switch (dev->model) {
 707                 case CX231XX_BOARD_CNXT_CARRAERA:
 708                 case CX231XX_BOARD_CNXT_RDE_250:
 709                 case CX231XX_BOARD_CNXT_SHELBY:
 710                 case CX231XX_BOARD_CNXT_RDU_250:
 711                 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
 712                         break;
 713                 case CX231XX_BOARD_CNXT_RDE_253S:
 714                 case CX231XX_BOARD_CNXT_RDU_253S:
 715                         errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
 716                         break;
 717                 case CX231XX_BOARD_HAUPPAUGE_EXETER:
 718                 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
 719                         errCode = cx231xx_set_power_mode(dev,
 720                                                 POLARIS_AVMODE_DIGITAL);
 721                         break;
 722                 default:
 723                         break;
 724                 }
 725         } else/* Set Analog Power mode */ {
 726         /* set AGC mode to Analog */
 727                 switch (dev->model) {
 728                 case CX231XX_BOARD_CNXT_CARRAERA:
 729                 case CX231XX_BOARD_CNXT_RDE_250:
 730                 case CX231XX_BOARD_CNXT_SHELBY:
 731                 case CX231XX_BOARD_CNXT_RDU_250:
 732                 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
 733                         break;
 734                 case CX231XX_BOARD_CNXT_RDE_253S:
 735                 case CX231XX_BOARD_CNXT_RDU_253S:
 736                 case CX231XX_BOARD_HAUPPAUGE_EXETER:
 737                 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
 738                 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
 739                 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
 740                 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
 741                 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
 742                         break;
 743                 default:
 744                         break;
 745                 }
 746         }
 747
 748         return errCode ? -EINVAL : 0;
 749 }
 750 EXPORT_SYMBOL_GPL(cx231xx_set_mode);
 751
 752 int cx231xx_ep5_bulkout(struct cx231xx *dev, u8 *firmware, u16 size)
 753 {
 754         int errCode = 0;
 755         int actlen, ret = -ENOMEM;
 756         u32 *buffer;
 757
 758         buffer = kzalloc(4096, GFP_KERNEL);
 759         if (buffer == NULL)
 760                 return -ENOMEM;
 761         memcpy(&buffer[0], firmware, 4096);
 762
 763         ret = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 5),
 764                         buffer, 4096, &actlen, 2000);
 765
 766         if (ret)
 767                 dev_err(dev->dev,
 768                         "bulk message failed: %d (%d/%d)", ret,
 769                         size, actlen);
 770         else {
 771                 errCode = actlen != size ? -1 : 0;
 772         }
 773         kfree(buffer);
 774         return errCode;
 775 }
 776
 777 /*****************************************************************
 778 *                URB Streaming functions                         *
 779 ******************************************************************/
 780
 781 /*
 782  * IRQ callback, called by URB callback
 783  */
 784 static void cx231xx_isoc_irq_callback(struct urb *urb)
 785 {
 786         struct cx231xx_dmaqueue *dma_q = urb->context;
 787         struct cx231xx_video_mode *vmode =
 788             container_of(dma_q, struct cx231xx_video_mode, vidq);
 789         struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
 790         int i;
 791
 792         switch (urb->status) {
 793         case 0:         /* success */
 794         case -ETIMEDOUT:        /* NAK */
 795                 break;
 796         case -ECONNRESET:       /* kill */
 797         case -ENOENT:
 798         case -ESHUTDOWN:
 799                 return;
 800         default:                /* error */
 801                 cx231xx_isocdbg("urb completition error %d.\n", urb->status);
 802                 break;
 803         }
 804
 805         /* Copy data from URB */
 806         spin_lock(&dev->video_mode.slock);
 807         dev->video_mode.isoc_ctl.isoc_copy(dev, urb);
 808         spin_unlock(&dev->video_mode.slock);
 809
 810         /* Reset urb buffers */
 811         for (i = 0; i < urb->number_of_packets; i++) {
 812                 urb->iso_frame_desc[i].status = 0;
 813                 urb->iso_frame_desc[i].actual_length = 0;
 814         }
 815
 816         urb->status = usb_submit_urb(urb, GFP_ATOMIC);
 817         if (urb->status) {
 818                 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
 819                                 urb->status);
 820         }
 821 }
 822 /*****************************************************************
 823 *                URB Streaming functions                         *
 824 ******************************************************************/
 825
 826 /*
 827  * IRQ callback, called by URB callback
 828  */
 829 static void cx231xx_bulk_irq_callback(struct urb *urb)
 830 {
 831         struct cx231xx_dmaqueue *dma_q = urb->context;
 832         struct cx231xx_video_mode *vmode =
 833             container_of(dma_q, struct cx231xx_video_mode, vidq);
 834         struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
 835
 836         switch (urb->status) {
 837         case 0:         /* success */
 838         case -ETIMEDOUT:        /* NAK */
 839                 break;
 840         case -ECONNRESET:       /* kill */
 841         case -ENOENT:
 842         case -ESHUTDOWN:
 843                 return;
 844         default:                /* error */
 845                 cx231xx_isocdbg("urb completition error %d.\n", urb->status);
 846                 break;
 847         }
 848
 849         /* Copy data from URB */
 850         spin_lock(&dev->video_mode.slock);
 851         dev->video_mode.bulk_ctl.bulk_copy(dev, urb);
 852         spin_unlock(&dev->video_mode.slock);
 853
 854         /* Reset urb buffers */
 855         urb->status = usb_submit_urb(urb, GFP_ATOMIC);
 856         if (urb->status) {
 857                 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
 858                                 urb->status);
 859         }
 860 }
 861 /*
 862  * Stop and Deallocate URBs
 863  */
 864 void cx231xx_uninit_isoc(struct cx231xx *dev)
 865 {
 866         struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
 867         struct urb *urb;
 868         int i;
 869
 870         cx231xx_isocdbg("cx231xx: called cx231xx_uninit_isoc\n");
 871
 872         dev->video_mode.isoc_ctl.nfields = -1;
 873         for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
 874                 urb = dev->video_mode.isoc_ctl.urb[i];
 875                 if (urb) {
 876                         if (!irqs_disabled())
 877                                 usb_kill_urb(urb);
 878                         else
 879                                 usb_unlink_urb(urb);
 880
 881                         if (dev->video_mode.isoc_ctl.transfer_buffer[i]) {
 882                                 usb_free_coherent(dev->udev,
 883                                                   urb->transfer_buffer_length,
 884                                                   dev->video_mode.isoc_ctl.
 885                                                   transfer_buffer[i],
 886                                                   urb->transfer_dma);
 887                         }
 888                         usb_free_urb(urb);
 889                         dev->video_mode.isoc_ctl.urb[i] = NULL;
 890                 }
 891                 dev->video_mode.isoc_ctl.transfer_buffer[i] = NULL;
 892         }
 893
 894         kfree(dev->video_mode.isoc_ctl.urb);
 895         kfree(dev->video_mode.isoc_ctl.transfer_buffer);
 896         kfree(dma_q->p_left_data);
 897
 898         dev->video_mode.isoc_ctl.urb = NULL;
 899         dev->video_mode.isoc_ctl.transfer_buffer = NULL;
 900         dev->video_mode.isoc_ctl.num_bufs = 0;
 901         dma_q->p_left_data = NULL;
 902
 903         if (dev->mode_tv == 0)
 904                 cx231xx_capture_start(dev, 0, Raw_Video);
 905         else
 906                 cx231xx_capture_start(dev, 0, TS1_serial_mode);
 907
 908
 909 }
 910 EXPORT_SYMBOL_GPL(cx231xx_uninit_isoc);
 911
 912 /*
 913  * Stop and Deallocate URBs
 914  */
 915 void cx231xx_uninit_bulk(struct cx231xx *dev)
 916 {
 917         struct urb *urb;
 918         int i;
 919
 920         cx231xx_isocdbg("cx231xx: called cx231xx_uninit_bulk\n");
 921
 922         dev->video_mode.bulk_ctl.nfields = -1;
 923         for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
 924                 urb = dev->video_mode.bulk_ctl.urb[i];
 925                 if (urb) {
 926                         if (!irqs_disabled())
 927                                 usb_kill_urb(urb);
 928                         else
 929                                 usb_unlink_urb(urb);
 930
 931                         if (dev->video_mode.bulk_ctl.transfer_buffer[i]) {
 932                                 usb_free_coherent(dev->udev,
 933                                                 urb->transfer_buffer_length,
 934                                                 dev->video_mode.isoc_ctl.
 935                                                 transfer_buffer[i],
 936                                                 urb->transfer_dma);
 937                         }
 938                         usb_free_urb(urb);
 939                         dev->video_mode.bulk_ctl.urb[i] = NULL;
 940                 }
 941                 dev->video_mode.bulk_ctl.transfer_buffer[i] = NULL;
 942         }
 943
 944         kfree(dev->video_mode.bulk_ctl.urb);
 945         kfree(dev->video_mode.bulk_ctl.transfer_buffer);
 946
 947         dev->video_mode.bulk_ctl.urb = NULL;
 948         dev->video_mode.bulk_ctl.transfer_buffer = NULL;
 949         dev->video_mode.bulk_ctl.num_bufs = 0;
 950
 951         if (dev->mode_tv == 0)
 952                 cx231xx_capture_start(dev, 0, Raw_Video);
 953         else
 954                 cx231xx_capture_start(dev, 0, TS1_serial_mode);
 955
 956
 957 }
 958 EXPORT_SYMBOL_GPL(cx231xx_uninit_bulk);
 959
 960 /*
 961  * Allocate URBs and start IRQ
 962  */
 963 int cx231xx_init_isoc(struct cx231xx *dev, int max_packets,
 964                       int num_bufs, int max_pkt_size,
 965                       int (*isoc_copy) (struct cx231xx *dev, struct urb *urb))
 966 {
 967         struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
 968         int i;
 969         int sb_size, pipe;
 970         struct urb *urb;
 971         int j, k;
 972         int rc;
 973
 974         /* De-allocates all pending stuff */
 975         cx231xx_uninit_isoc(dev);
 976
 977         dma_q->p_left_data = kzalloc(4096, GFP_KERNEL);
 978         if (dma_q->p_left_data == NULL)
 979                 return -ENOMEM;
 980
 981         dev->video_mode.isoc_ctl.isoc_copy = isoc_copy;
 982         dev->video_mode.isoc_ctl.num_bufs = num_bufs;
 983         dma_q->pos = 0;
 984         dma_q->is_partial_line = 0;
 985         dma_q->last_sav = 0;
 986         dma_q->current_field = -1;
 987         dma_q->field1_done = 0;
 988         dma_q->lines_per_field = dev->height / 2;
 989         dma_q->bytes_left_in_line = dev->width << 1;
 990         dma_q->lines_completed = 0;
 991         dma_q->mpeg_buffer_done = 0;
 992         dma_q->left_data_count = 0;
 993         dma_q->mpeg_buffer_completed = 0;
 994         dma_q->add_ps_package_head = CX231XX_NEED_ADD_PS_PACKAGE_HEAD;
 995         dma_q->ps_head[0] = 0x00;
 996         dma_q->ps_head[1] = 0x00;
 997         dma_q->ps_head[2] = 0x01;
 998         dma_q->ps_head[3] = 0xBA;
 999         for (i = 0; i < 8; i++)
1000                 dma_q->partial_buf[i] = 0;
1001
1002         dev->video_mode.isoc_ctl.urb =
1003             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1004         if (!dev->video_mode.isoc_ctl.urb) {
1005                 dev_err(dev->dev,
1006                         "cannot alloc memory for usb buffers\n");
1007                 return -ENOMEM;
1008         }
1009
1010         dev->video_mode.isoc_ctl.transfer_buffer =
1011             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1012         if (!dev->video_mode.isoc_ctl.transfer_buffer) {
1013                 dev_err(dev->dev,
1014                         "cannot allocate memory for usbtransfer\n");
1015                 kfree(dev->video_mode.isoc_ctl.urb);
1016                 return -ENOMEM;
1017         }
1018
1019         dev->video_mode.isoc_ctl.max_pkt_size = max_pkt_size;
1020         dev->video_mode.isoc_ctl.buf = NULL;
1021
1022         sb_size = max_packets * dev->video_mode.isoc_ctl.max_pkt_size;
1023
1024         if (dev->mode_tv == 1)
1025                 dev->video_mode.end_point_addr = 0x81;
1026         else
1027                 dev->video_mode.end_point_addr = 0x84;
1028
1029
1030         /* allocate urbs and transfer buffers */
1031         for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1032                 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
1033                 if (!urb) {
1034                         dev_err(dev->dev,
1035                                 "cannot alloc isoc_ctl.urb %i\n", i);
1036                         cx231xx_uninit_isoc(dev);
1037                         return -ENOMEM;
1038                 }
1039                 dev->video_mode.isoc_ctl.urb[i] = urb;
1040
1041                 dev->video_mode.isoc_ctl.transfer_buffer[i] =
1042                     usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1043                                        &urb->transfer_dma);
1044                 if (!dev->video_mode.isoc_ctl.transfer_buffer[i]) {
1045                         dev_err(dev->dev,
1046                                 "unable to allocate %i bytes for transfer buffer %i%s\n",
1047                                 sb_size, i,
1048                                 in_interrupt() ? " while in int" : "");
1049                         cx231xx_uninit_isoc(dev);
1050                         return -ENOMEM;
1051                 }
1052                 memset(dev->video_mode.isoc_ctl.transfer_buffer[i], 0, sb_size);
1053
1054                 pipe =
1055                     usb_rcvisocpipe(dev->udev, dev->video_mode.end_point_addr);
1056
1057                 usb_fill_int_urb(urb, dev->udev, pipe,
1058                                  dev->video_mode.isoc_ctl.transfer_buffer[i],
1059                                  sb_size, cx231xx_isoc_irq_callback, dma_q, 1);
1060
1061                 urb->number_of_packets = max_packets;
1062                 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
1063
1064                 k = 0;
1065                 for (j = 0; j < max_packets; j++) {
1066                         urb->iso_frame_desc[j].offset = k;
1067                         urb->iso_frame_desc[j].length =
1068                             dev->video_mode.isoc_ctl.max_pkt_size;
1069                         k += dev->video_mode.isoc_ctl.max_pkt_size;
1070                 }
1071         }
1072
1073         init_waitqueue_head(&dma_q->wq);
1074
1075         /* submit urbs and enables IRQ */
1076         for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1077                 rc = usb_submit_urb(dev->video_mode.isoc_ctl.urb[i],
1078                                     GFP_ATOMIC);
1079                 if (rc) {
1080                         dev_err(dev->dev,
1081                                 "submit of urb %i failed (error=%i)\n", i,
1082                                 rc);
1083                         cx231xx_uninit_isoc(dev);
1084                         return rc;
1085                 }
1086         }
1087
1088         if (dev->mode_tv == 0)
1089                 cx231xx_capture_start(dev, 1, Raw_Video);
1090         else
1091                 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1092
1093         return 0;
1094 }
1095 EXPORT_SYMBOL_GPL(cx231xx_init_isoc);
1096
1097 /*
1098  * Allocate URBs and start IRQ
1099  */
1100 int cx231xx_init_bulk(struct cx231xx *dev, int max_packets,
1101                       int num_bufs, int max_pkt_size,
1102                       int (*bulk_copy) (struct cx231xx *dev, struct urb *urb))
1103 {
1104         struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
1105         int i;
1106         int sb_size, pipe;
1107         struct urb *urb;
1108         int rc;
1109
1110         dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
1111
1112         cx231xx_coredbg("Setting Video mux to %d\n", dev->video_input);
1113
1114         video_mux(dev, dev->video_input);
1115
1116         /* De-allocates all pending stuff */
1117         cx231xx_uninit_bulk(dev);
1118
1119         dev->video_mode.bulk_ctl.bulk_copy = bulk_copy;
1120         dev->video_mode.bulk_ctl.num_bufs = num_bufs;
1121         dma_q->pos = 0;
1122         dma_q->is_partial_line = 0;
1123         dma_q->last_sav = 0;
1124         dma_q->current_field = -1;
1125         dma_q->field1_done = 0;
1126         dma_q->lines_per_field = dev->height / 2;
1127         dma_q->bytes_left_in_line = dev->width << 1;
1128         dma_q->lines_completed = 0;
1129         dma_q->mpeg_buffer_done = 0;
1130         dma_q->left_data_count = 0;
1131         dma_q->mpeg_buffer_completed = 0;
1132         dma_q->ps_head[0] = 0x00;
1133         dma_q->ps_head[1] = 0x00;
1134         dma_q->ps_head[2] = 0x01;
1135         dma_q->ps_head[3] = 0xBA;
1136         for (i = 0; i < 8; i++)
1137                 dma_q->partial_buf[i] = 0;
1138
1139         dev->video_mode.bulk_ctl.urb =
1140             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1141         if (!dev->video_mode.bulk_ctl.urb) {
1142                 dev_err(dev->dev,
1143                         "cannot alloc memory for usb buffers\n");
1144                 return -ENOMEM;
1145         }
1146
1147         dev->video_mode.bulk_ctl.transfer_buffer =
1148             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1149         if (!dev->video_mode.bulk_ctl.transfer_buffer) {
1150                 dev_err(dev->dev,
1151                         "cannot allocate memory for usbtransfer\n");
1152                 kfree(dev->video_mode.bulk_ctl.urb);
1153                 return -ENOMEM;
1154         }
1155
1156         dev->video_mode.bulk_ctl.max_pkt_size = max_pkt_size;
1157         dev->video_mode.bulk_ctl.buf = NULL;
1158
1159         sb_size = max_packets * dev->video_mode.bulk_ctl.max_pkt_size;
1160
1161         if (dev->mode_tv == 1)
1162                 dev->video_mode.end_point_addr = 0x81;
1163         else
1164                 dev->video_mode.end_point_addr = 0x84;
1165
1166
1167         /* allocate urbs and transfer buffers */
1168         for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1169                 urb = usb_alloc_urb(0, GFP_KERNEL);
1170                 if (!urb) {
1171                         dev_err(dev->dev,
1172                                 "cannot alloc bulk_ctl.urb %i\n", i);
1173                         cx231xx_uninit_bulk(dev);
1174                         return -ENOMEM;
1175                 }
1176                 dev->video_mode.bulk_ctl.urb[i] = urb;
1177                 urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
1178
1179                 dev->video_mode.bulk_ctl.transfer_buffer[i] =
1180                     usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1181                                      &urb->transfer_dma);
1182                 if (!dev->video_mode.bulk_ctl.transfer_buffer[i]) {
1183                         dev_err(dev->dev,
1184                                 "unable to allocate %i bytes for transfer buffer %i%s\n",
1185                                 sb_size, i,
1186                                 in_interrupt() ? " while in int" : "");
1187                         cx231xx_uninit_bulk(dev);
1188                         return -ENOMEM;
1189                 }
1190                 memset(dev->video_mode.bulk_ctl.transfer_buffer[i], 0, sb_size);
1191
1192                 pipe = usb_rcvbulkpipe(dev->udev,
1193                                  dev->video_mode.end_point_addr);
1194                 usb_fill_bulk_urb(urb, dev->udev, pipe,
1195                                   dev->video_mode.bulk_ctl.transfer_buffer[i],
1196                                   sb_size, cx231xx_bulk_irq_callback, dma_q);
1197         }
1198
1199         init_waitqueue_head(&dma_q->wq);
1200
1201         /* submit urbs and enables IRQ */
1202         for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1203                 rc = usb_submit_urb(dev->video_mode.bulk_ctl.urb[i],
1204                                     GFP_ATOMIC);
1205                 if (rc) {
1206                         dev_err(dev->dev,
1207                                 "submit of urb %i failed (error=%i)\n", i, rc);
1208                         cx231xx_uninit_bulk(dev);
1209                         return rc;
1210                 }
1211         }
1212
1213         if (dev->mode_tv == 0)
1214                 cx231xx_capture_start(dev, 1, Raw_Video);
1215         else
1216                 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1217
1218         return 0;
1219 }
1220 EXPORT_SYMBOL_GPL(cx231xx_init_bulk);
1221 void cx231xx_stop_TS1(struct cx231xx *dev)
1222 {
1223         u8 val[4] = { 0, 0, 0, 0 };
1224
1225         val[0] = 0x00;
1226         val[1] = 0x03;
1227         val[2] = 0x00;
1228         val[3] = 0x00;
1229         cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1230                         TS_MODE_REG, val, 4);
1231
1232         val[0] = 0x00;
1233         val[1] = 0x70;
1234         val[2] = 0x04;
1235         val[3] = 0x00;
1236         cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1237                         TS1_CFG_REG, val, 4);
1238 }
1239 /* EXPORT_SYMBOL_GPL(cx231xx_stop_TS1); */
1240 void cx231xx_start_TS1(struct cx231xx *dev)
1241 {
1242         u8 val[4] = { 0, 0, 0, 0 };
1243
1244         val[0] = 0x03;
1245         val[1] = 0x03;
1246         val[2] = 0x00;
1247         val[3] = 0x00;
1248         cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1249                         TS_MODE_REG, val, 4);
1250
1251         val[0] = 0x04;
1252         val[1] = 0xA3;
1253         val[2] = 0x3B;
1254         val[3] = 0x00;
1255         cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1256                         TS1_CFG_REG, val, 4);
1257 }
1258 /* EXPORT_SYMBOL_GPL(cx231xx_start_TS1); */
1259 /*****************************************************************
1260 *             Device Init/UnInit functions                       *
1261 ******************************************************************/
1262 int cx231xx_dev_init(struct cx231xx *dev)
1263 {
1264         int errCode = 0;
1265
1266         /* Initialize I2C bus */
1267
1268         /* External Master 1 Bus */
1269         dev->i2c_bus[0].nr = 0;
1270         dev->i2c_bus[0].dev = dev;
1271         dev->i2c_bus[0].i2c_period = I2C_SPEED_100K;    /* 100 KHz */
1272         dev->i2c_bus[0].i2c_nostop = 0;
1273         dev->i2c_bus[0].i2c_reserve = 0;
1274
1275         /* External Master 2 Bus */
1276         dev->i2c_bus[1].nr = 1;
1277         dev->i2c_bus[1].dev = dev;
1278         dev->i2c_bus[1].i2c_period = I2C_SPEED_100K;    /* 100 KHz */
1279         dev->i2c_bus[1].i2c_nostop = 0;
1280         dev->i2c_bus[1].i2c_reserve = 0;
1281
1282         /* Internal Master 3 Bus */
1283         dev->i2c_bus[2].nr = 2;
1284         dev->i2c_bus[2].dev = dev;
1285         dev->i2c_bus[2].i2c_period = I2C_SPEED_100K;    /* 100kHz */
1286         dev->i2c_bus[2].i2c_nostop = 0;
1287         dev->i2c_bus[2].i2c_reserve = 0;
1288
1289         /* register I2C buses */
1290         cx231xx_i2c_register(&dev->i2c_bus[0]);
1291         cx231xx_i2c_register(&dev->i2c_bus[1]);
1292         cx231xx_i2c_register(&dev->i2c_bus[2]);
1293
1294         cx231xx_i2c_mux_register(dev, 0);
1295         cx231xx_i2c_mux_register(dev, 1);
1296
1297         /* scan the real bus segments in the order of physical port numbers */
1298         cx231xx_do_i2c_scan(dev, I2C_0);
1299         cx231xx_do_i2c_scan(dev, I2C_1_MUX_1);
1300         cx231xx_do_i2c_scan(dev, I2C_2);
1301         cx231xx_do_i2c_scan(dev, I2C_1_MUX_3);
1302
1303         /* init hardware */
1304         /* Note : with out calling set power mode function,
1305         afe can not be set up correctly */
1306         if (dev->board.external_av) {
1307                 errCode = cx231xx_set_power_mode(dev,
1308                                  POLARIS_AVMODE_ENXTERNAL_AV);
1309                 if (errCode < 0) {
1310                         dev_err(dev->dev,
1311                                 "%s: Failed to set Power - errCode [%d]!\n",
1312                                 __func__, errCode);
1313                         return errCode;
1314                 }
1315         } else {
1316                 errCode = cx231xx_set_power_mode(dev,
1317                                  POLARIS_AVMODE_ANALOGT_TV);
1318                 if (errCode < 0) {
1319                         dev_err(dev->dev,
1320                                 "%s: Failed to set Power - errCode [%d]!\n",
1321                                 __func__, errCode);
1322                         return errCode;
1323                 }
1324         }
1325
1326         /* reset the Tuner, if it is a Xceive tuner */
1327         if ((dev->board.tuner_type == TUNER_XC5000) ||
1328             (dev->board.tuner_type == TUNER_XC2028))
1329                         cx231xx_gpio_set(dev, dev->board.tuner_gpio);
1330
1331         /* initialize Colibri block */
1332         errCode = cx231xx_afe_init_super_block(dev, 0x23c);
1333         if (errCode < 0) {
1334                 dev_err(dev->dev,
1335                         "%s: cx231xx_afe init super block - errCode [%d]!\n",
1336                         __func__, errCode);
1337                 return errCode;
1338         }
1339         errCode = cx231xx_afe_init_channels(dev);
1340         if (errCode < 0) {
1341                 dev_err(dev->dev,
1342                         "%s: cx231xx_afe init channels - errCode [%d]!\n",
1343                         __func__, errCode);
1344                 return errCode;
1345         }
1346
1347         /* Set DIF in By pass mode */
1348         errCode = cx231xx_dif_set_standard(dev, DIF_USE_BASEBAND);
1349         if (errCode < 0) {
1350                 dev_err(dev->dev,
1351                         "%s: cx231xx_dif set to By pass mode - errCode [%d]!\n",
1352                         __func__, errCode);
1353                 return errCode;
1354         }
1355
1356         /* I2S block related functions */
1357         errCode = cx231xx_i2s_blk_initialize(dev);
1358         if (errCode < 0) {
1359                 dev_err(dev->dev,
1360                         "%s: cx231xx_i2s block initialize - errCode [%d]!\n",
1361                         __func__, errCode);
1362                 return errCode;
1363         }
1364
1365         /* init control pins */
1366         errCode = cx231xx_init_ctrl_pin_status(dev);
1367         if (errCode < 0) {
1368                 dev_err(dev->dev,
1369                         "%s: cx231xx_init ctrl pins - errCode [%d]!\n",
1370                         __func__, errCode);
1371                 return errCode;
1372         }
1373
1374         /* set AGC mode to Analog */
1375         switch (dev->model) {
1376         case CX231XX_BOARD_CNXT_CARRAERA:
1377         case CX231XX_BOARD_CNXT_RDE_250:
1378         case CX231XX_BOARD_CNXT_SHELBY:
1379         case CX231XX_BOARD_CNXT_RDU_250:
1380         errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
1381                 break;
1382         case CX231XX_BOARD_CNXT_RDE_253S:
1383         case CX231XX_BOARD_CNXT_RDU_253S:
1384         case CX231XX_BOARD_HAUPPAUGE_EXETER:
1385         case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
1386         case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
1387         case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
1388         case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
1389         errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
1390                 break;
1391         default:
1392                 break;
1393         }
1394         if (errCode < 0) {
1395                 dev_err(dev->dev,
1396                         "%s: cx231xx_AGC mode to Analog - errCode [%d]!\n",
1397                         __func__, errCode);
1398                 return errCode;
1399         }
1400
1401         /* set all alternate settings to zero initially */
1402         cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
1403         cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1404         cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
1405         if (dev->board.has_dvb)
1406                 cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
1407
1408         errCode = 0;
1409         return errCode;
1410 }
1411 EXPORT_SYMBOL_GPL(cx231xx_dev_init);
1412
1413 void cx231xx_dev_uninit(struct cx231xx *dev)
1414 {
1415         /* Un Initialize I2C bus */
1416         cx231xx_i2c_mux_unregister(dev, 1);
1417         cx231xx_i2c_mux_unregister(dev, 0);
1418         cx231xx_i2c_unregister(&dev->i2c_bus[2]);
1419         cx231xx_i2c_unregister(&dev->i2c_bus[1]);
1420         cx231xx_i2c_unregister(&dev->i2c_bus[0]);
1421 }
1422 EXPORT_SYMBOL_GPL(cx231xx_dev_uninit);
1423
1424 /*****************************************************************
1425 *              G P I O related functions                         *
1426 ******************************************************************/
1427 int cx231xx_send_gpio_cmd(struct cx231xx *dev, u32 gpio_bit, u8 *gpio_val,
1428                           u8 len, u8 request, u8 direction)
1429 {
1430         int status = 0;
1431         struct VENDOR_REQUEST_IN ven_req;
1432
1433         /* Set wValue */
1434         ven_req.wValue = (u16) (gpio_bit >> 16 & 0xffff);
1435
1436         /* set request */
1437         if (!request) {
1438                 if (direction)
1439                         ven_req.bRequest = VRT_GET_GPIO;        /* 0x8 gpio */
1440                 else
1441                         ven_req.bRequest = VRT_SET_GPIO;        /* 0x9 gpio */
1442         } else {
1443                 if (direction)
1444                         ven_req.bRequest = VRT_GET_GPIE;        /* 0xa gpie */
1445                 else
1446                         ven_req.bRequest = VRT_SET_GPIE;        /* 0xb gpie */
1447         }
1448
1449         /* set index value */
1450         ven_req.wIndex = (u16) (gpio_bit & 0xffff);
1451
1452         /* set wLength value */
1453         ven_req.wLength = len;
1454
1455         /* set bData value */
1456         ven_req.bData = 0;
1457
1458         /* set the buffer for read / write */
1459         ven_req.pBuff = gpio_val;
1460
1461         /* set the direction */
1462         if (direction) {
1463                 ven_req.direction = USB_DIR_IN;
1464                 memset(ven_req.pBuff, 0x00, ven_req.wLength);
1465         } else
1466                 ven_req.direction = USB_DIR_OUT;
1467
1468
1469         /* call common vendor command request */
1470         status = cx231xx_send_vendor_cmd(dev, &ven_req);
1471         if (status < 0) {
1472                 dev_err(dev->dev, "%s: failed with status -%d\n",
1473                         __func__, status);
1474         }
1475
1476         return status;
1477 }
1478 EXPORT_SYMBOL_GPL(cx231xx_send_gpio_cmd);
1479
1480 /*****************************************************************
1481  *    C O N T R O L - Register R E A D / W R I T E functions     *
1482  *****************************************************************/
1483 int cx231xx_mode_register(struct cx231xx *dev, u16 address, u32 mode)
1484 {
1485         u8 value[4] = { 0x0, 0x0, 0x0, 0x0 };
1486         u32 tmp = 0;
1487         int status = 0;
1488
1489         status =
1490             cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, address, value, 4);
1491         if (status < 0)
1492                 return status;
1493
1494         tmp = le32_to_cpu(*((__le32 *) value));
1495         tmp |= mode;
1496
1497         value[0] = (u8) tmp;
1498         value[1] = (u8) (tmp >> 8);
1499         value[2] = (u8) (tmp >> 16);
1500         value[3] = (u8) (tmp >> 24);
1501
1502         status =
1503             cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, address, value, 4);
1504
1505         return status;
1506 }
1507
1508 /*****************************************************************
1509  *            I 2 C Internal C O N T R O L   functions           *
1510  *****************************************************************/
1511 int cx231xx_read_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1512                           u8 saddr_len, u32 *data, u8 data_len, int master)
1513 {
1514         int status = 0;
1515         struct cx231xx_i2c_xfer_data req_data;
1516         u8 value[64] = "0";
1517
1518         if (saddr_len == 0)
1519                 saddr = 0;
1520         else if (saddr_len == 1)
1521                 saddr &= 0xff;
1522
1523         /* prepare xfer_data struct */
1524         req_data.dev_addr = dev_addr >> 1;
1525         req_data.direction = I2C_M_RD;
1526         req_data.saddr_len = saddr_len;
1527         req_data.saddr_dat = saddr;
1528         req_data.buf_size = data_len;
1529         req_data.p_buffer = (u8 *) value;
1530
1531         /* usb send command */
1532         if (master == 0)
1533                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1534                                          &req_data);
1535         else if (master == 1)
1536                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1537                                          &req_data);
1538         else if (master == 2)
1539                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1540                                          &req_data);
1541
1542         if (status >= 0) {
1543                 /* Copy the data read back to main buffer */
1544                 if (data_len == 1)
1545                         *data = value[0];
1546                 else if (data_len == 4)
1547                         *data =
1548                             value[0] | value[1] << 8 | value[2] << 16 | value[3]
1549                             << 24;
1550                 else if (data_len > 4)
1551                         *data = value[saddr];
1552         }
1553
1554         return status;
1555 }
1556
1557 int cx231xx_write_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1558                            u8 saddr_len, u32 data, u8 data_len, int master)
1559 {
1560         int status = 0;
1561         u8 value[4] = { 0, 0, 0, 0 };
1562         struct cx231xx_i2c_xfer_data req_data;
1563
1564         value[0] = (u8) data;
1565         value[1] = (u8) (data >> 8);
1566         value[2] = (u8) (data >> 16);
1567         value[3] = (u8) (data >> 24);
1568
1569         if (saddr_len == 0)
1570                 saddr = 0;
1571         else if (saddr_len == 1)
1572                 saddr &= 0xff;
1573
1574         /* prepare xfer_data struct */
1575         req_data.dev_addr = dev_addr >> 1;
1576         req_data.direction = 0;
1577         req_data.saddr_len = saddr_len;
1578         req_data.saddr_dat = saddr;
1579         req_data.buf_size = data_len;
1580         req_data.p_buffer = value;
1581
1582         /* usb send command */
1583         if (master == 0)
1584                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1585                                  &req_data);
1586         else if (master == 1)
1587                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1588                                  &req_data);
1589         else if (master == 2)
1590                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1591                                  &req_data);
1592
1593         return status;
1594 }
1595
1596 int cx231xx_read_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1597                           u8 saddr_len, u32 *data, u8 data_len)
1598 {
1599         int status = 0;
1600         struct cx231xx_i2c_xfer_data req_data;
1601         u8 value[4] = { 0, 0, 0, 0 };
1602
1603         if (saddr_len == 0)
1604                 saddr = 0;
1605         else if (saddr_len == 1)
1606                 saddr &= 0xff;
1607
1608         /* prepare xfer_data struct */
1609         req_data.dev_addr = dev_addr >> 1;
1610         req_data.direction = I2C_M_RD;
1611         req_data.saddr_len = saddr_len;
1612         req_data.saddr_dat = saddr;
1613         req_data.buf_size = data_len;
1614         req_data.p_buffer = (u8 *) value;
1615
1616         /* usb send command */
1617         status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1618
1619         if (status >= 0) {
1620                 /* Copy the data read back to main buffer */
1621                 if (data_len == 1)
1622                         *data = value[0];
1623                 else
1624                         *data =
1625                             value[0] | value[1] << 8 | value[2] << 16 | value[3]
1626                             << 24;
1627         }
1628
1629         return status;
1630 }
1631
1632 int cx231xx_write_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1633                            u8 saddr_len, u32 data, u8 data_len)
1634 {
1635         int status = 0;
1636         u8 value[4] = { 0, 0, 0, 0 };
1637         struct cx231xx_i2c_xfer_data req_data;
1638
1639         value[0] = (u8) data;
1640         value[1] = (u8) (data >> 8);
1641         value[2] = (u8) (data >> 16);
1642         value[3] = (u8) (data >> 24);
1643
1644         if (saddr_len == 0)
1645                 saddr = 0;
1646         else if (saddr_len == 1)
1647                 saddr &= 0xff;
1648
1649         /* prepare xfer_data struct */
1650         req_data.dev_addr = dev_addr >> 1;
1651         req_data.direction = 0;
1652         req_data.saddr_len = saddr_len;
1653         req_data.saddr_dat = saddr;
1654         req_data.buf_size = data_len;
1655         req_data.p_buffer = value;
1656
1657         /* usb send command */
1658         status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1659
1660         return status;
1661 }
1662
1663 int cx231xx_reg_mask_write(struct cx231xx *dev, u8 dev_addr, u8 size,
1664                            u16 register_address, u8 bit_start, u8 bit_end,
1665                            u32 value)
1666 {
1667         int status = 0;
1668         u32 tmp;
1669         u32 mask = 0;
1670         int i;
1671
1672         if (bit_start > (size - 1) || bit_end > (size - 1))
1673                 return -1;
1674
1675         if (size == 8) {
1676                 status =
1677                     cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1678                                           &tmp, 1);
1679         } else {
1680                 status =
1681                     cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1682                                           &tmp, 4);
1683         }
1684
1685         if (status < 0)
1686                 return status;
1687
1688         mask = 1 << bit_end;
1689         for (i = bit_end; i > bit_start && i > 0; i--)
1690                 mask = mask + (1 << (i - 1));
1691
1692         value <<= bit_start;
1693
1694         if (size == 8) {
1695                 tmp &= ~mask;
1696                 tmp |= value;
1697                 tmp &= 0xff;
1698                 status =
1699                     cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1700                                            tmp, 1);
1701         } else {
1702                 tmp &= ~mask;
1703                 tmp |= value;
1704                 status =
1705                     cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1706                                            tmp, 4);
1707         }
1708
1709         return status;
1710 }
1711
1712 int cx231xx_read_modify_write_i2c_dword(struct cx231xx *dev, u8 dev_addr,
1713                                         u16 saddr, u32 mask, u32 value)
1714 {
1715         u32 temp;
1716         int status = 0;
1717
1718         status = cx231xx_read_i2c_data(dev, dev_addr, saddr, 2, &temp, 4);
1719
1720         if (status < 0)
1721                 return status;
1722
1723         temp &= ~mask;
1724         temp |= value;
1725
1726         status = cx231xx_write_i2c_data(dev, dev_addr, saddr, 2, temp, 4);
1727
1728         return status;
1729 }
1730
1731 u32 cx231xx_set_field(u32 field_mask, u32 data)
1732 {
1733         u32 temp;
1734
1735         for (temp = field_mask; (temp & 1) == 0; temp >>= 1)
1736                 data <<= 1;
1737
1738         return data;
1739 }