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                 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
 716                         errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
 717                         break;
 718                 case CX231XX_BOARD_HAUPPAUGE_EXETER:
 719                 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
 720                         errCode = cx231xx_set_power_mode(dev,
 721                                                 POLARIS_AVMODE_DIGITAL);
 722                         break;
 723                 default:
 724                         break;
 725                 }
 726         } else/* Set Analog Power mode */ {
 727         /* set AGC mode to Analog */
 728                 switch (dev->model) {
 729                 case CX231XX_BOARD_CNXT_CARRAERA:
 730                 case CX231XX_BOARD_CNXT_RDE_250:
 731                 case CX231XX_BOARD_CNXT_SHELBY:
 732                 case CX231XX_BOARD_CNXT_RDU_250:
 733                 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
 734                         break;
 735                 case CX231XX_BOARD_CNXT_RDE_253S:
 736                 case CX231XX_BOARD_CNXT_RDU_253S:
 737                 case CX231XX_BOARD_HAUPPAUGE_EXETER:
 738                 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
 739                 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
 740                 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
 741                 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
 742                         errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
 743                         break;
 744                 default:
 745                         break;
 746                 }
 747         }
 748
 749         if (errCode < 0) {
 750                 dev_err(dev->dev, "Failed to set devmode to %s: error: %i",
 751                         dev->mode == CX231XX_DIGITAL_MODE ? "digital" : "analog",
 752                         errCode);
 753                 return errCode;
 754         }
 755
 756         return 0;
 757 }
 758 EXPORT_SYMBOL_GPL(cx231xx_set_mode);
 759
 760 int cx231xx_ep5_bulkout(struct cx231xx *dev, u8 *firmware, u16 size)
 761 {
 762         int errCode = 0;
 763         int actlen = -1;
 764         int ret = -ENOMEM;
 765         u32 *buffer;
 766
 767         buffer = kzalloc(4096, GFP_KERNEL);
 768         if (buffer == NULL)
 769                 return -ENOMEM;
 770         memcpy(&buffer[0], firmware, 4096);
 771
 772         ret = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 5),
 773                         buffer, 4096, &actlen, 2000);
 774
 775         if (ret)
 776                 dev_err(dev->dev,
 777                         "bulk message failed: %d (%d/%d)", ret,
 778                         size, actlen);
 779         else {
 780                 errCode = actlen != size ? -1 : 0;
 781         }
 782         kfree(buffer);
 783         return errCode;
 784 }
 785
 786 /*****************************************************************
 787 *                URB Streaming functions                         *
 788 ******************************************************************/
 789
 790 /*
 791  * IRQ callback, called by URB callback
 792  */
 793 static void cx231xx_isoc_irq_callback(struct urb *urb)
 794 {
 795         struct cx231xx_dmaqueue *dma_q = urb->context;
 796         struct cx231xx_video_mode *vmode =
 797             container_of(dma_q, struct cx231xx_video_mode, vidq);
 798         struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
 799         int i;
 800
 801         switch (urb->status) {
 802         case 0:         /* success */
 803         case -ETIMEDOUT:        /* NAK */
 804                 break;
 805         case -ECONNRESET:       /* kill */
 806         case -ENOENT:
 807         case -ESHUTDOWN:
 808                 return;
 809         default:                /* error */
 810                 cx231xx_isocdbg("urb completion error %d.\n", urb->status);
 811                 break;
 812         }
 813
 814         /* Copy data from URB */
 815         spin_lock(&dev->video_mode.slock);
 816         dev->video_mode.isoc_ctl.isoc_copy(dev, urb);
 817         spin_unlock(&dev->video_mode.slock);
 818
 819         /* Reset urb buffers */
 820         for (i = 0; i < urb->number_of_packets; i++) {
 821                 urb->iso_frame_desc[i].status = 0;
 822                 urb->iso_frame_desc[i].actual_length = 0;
 823         }
 824
 825         urb->status = usb_submit_urb(urb, GFP_ATOMIC);
 826         if (urb->status) {
 827                 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
 828                                 urb->status);
 829         }
 830 }
 831 /*****************************************************************
 832 *                URB Streaming functions                         *
 833 ******************************************************************/
 834
 835 /*
 836  * IRQ callback, called by URB callback
 837  */
 838 static void cx231xx_bulk_irq_callback(struct urb *urb)
 839 {
 840         struct cx231xx_dmaqueue *dma_q = urb->context;
 841         struct cx231xx_video_mode *vmode =
 842             container_of(dma_q, struct cx231xx_video_mode, vidq);
 843         struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
 844
 845         switch (urb->status) {
 846         case 0:         /* success */
 847         case -ETIMEDOUT:        /* NAK */
 848                 break;
 849         case -ECONNRESET:       /* kill */
 850         case -ENOENT:
 851         case -ESHUTDOWN:
 852                 return;
 853         case -EPIPE:            /* stall */
 854                 cx231xx_isocdbg("urb completion error - device is stalled.\n");
 855                 return;
 856         default:                /* error */
 857                 cx231xx_isocdbg("urb completion error %d.\n", urb->status);
 858                 break;
 859         }
 860
 861         /* Copy data from URB */
 862         spin_lock(&dev->video_mode.slock);
 863         dev->video_mode.bulk_ctl.bulk_copy(dev, urb);
 864         spin_unlock(&dev->video_mode.slock);
 865
 866         /* Reset urb buffers */
 867         urb->status = usb_submit_urb(urb, GFP_ATOMIC);
 868         if (urb->status) {
 869                 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
 870                                 urb->status);
 871         }
 872 }
 873 /*
 874  * Stop and Deallocate URBs
 875  */
 876 void cx231xx_uninit_isoc(struct cx231xx *dev)
 877 {
 878         struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
 879         struct urb *urb;
 880         int i;
 881         bool broken_pipe = false;
 882
 883         cx231xx_isocdbg("cx231xx: called cx231xx_uninit_isoc\n");
 884
 885         dev->video_mode.isoc_ctl.nfields = -1;
 886         for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
 887                 urb = dev->video_mode.isoc_ctl.urb[i];
 888                 if (urb) {
 889                         if (!irqs_disabled())
 890                                 usb_kill_urb(urb);
 891                         else
 892                                 usb_unlink_urb(urb);
 893
 894                         if (dev->video_mode.isoc_ctl.transfer_buffer[i]) {
 895                                 usb_free_coherent(dev->udev,
 896                                                   urb->transfer_buffer_length,
 897                                                   dev->video_mode.isoc_ctl.
 898                                                   transfer_buffer[i],
 899                                                   urb->transfer_dma);
 900                         }
 901                         if (urb->status == -EPIPE) {
 902                                 broken_pipe = true;
 903                         }
 904                         usb_free_urb(urb);
 905                         dev->video_mode.isoc_ctl.urb[i] = NULL;
 906                 }
 907                 dev->video_mode.isoc_ctl.transfer_buffer[i] = NULL;
 908         }
 909
 910         if (broken_pipe) {
 911                 cx231xx_isocdbg("Reset endpoint to recover broken pipe.");
 912                 usb_reset_endpoint(dev->udev, dev->video_mode.end_point_addr);
 913         }
 914         kfree(dev->video_mode.isoc_ctl.urb);
 915         kfree(dev->video_mode.isoc_ctl.transfer_buffer);
 916         kfree(dma_q->p_left_data);
 917
 918         dev->video_mode.isoc_ctl.urb = NULL;
 919         dev->video_mode.isoc_ctl.transfer_buffer = NULL;
 920         dev->video_mode.isoc_ctl.num_bufs = 0;
 921         dma_q->p_left_data = NULL;
 922
 923         if (dev->mode_tv == 0)
 924                 cx231xx_capture_start(dev, 0, Raw_Video);
 925         else
 926                 cx231xx_capture_start(dev, 0, TS1_serial_mode);
 927
 928
 929 }
 930 EXPORT_SYMBOL_GPL(cx231xx_uninit_isoc);
 931
 932 /*
 933  * Stop and Deallocate URBs
 934  */
 935 void cx231xx_uninit_bulk(struct cx231xx *dev)
 936 {
 937         struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
 938         struct urb *urb;
 939         int i;
 940         bool broken_pipe = false;
 941
 942         cx231xx_isocdbg("cx231xx: called cx231xx_uninit_bulk\n");
 943
 944         dev->video_mode.bulk_ctl.nfields = -1;
 945         for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
 946                 urb = dev->video_mode.bulk_ctl.urb[i];
 947                 if (urb) {
 948                         if (!irqs_disabled())
 949                                 usb_kill_urb(urb);
 950                         else
 951                                 usb_unlink_urb(urb);
 952
 953                         if (dev->video_mode.bulk_ctl.transfer_buffer[i]) {
 954                                 usb_free_coherent(dev->udev,
 955                                                 urb->transfer_buffer_length,
 956                                                 dev->video_mode.bulk_ctl.
 957                                                 transfer_buffer[i],
 958                                                 urb->transfer_dma);
 959                         }
 960                         if (urb->status == -EPIPE) {
 961                                 broken_pipe = true;
 962                         }
 963                         usb_free_urb(urb);
 964                         dev->video_mode.bulk_ctl.urb[i] = NULL;
 965                 }
 966                 dev->video_mode.bulk_ctl.transfer_buffer[i] = NULL;
 967         }
 968
 969         if (broken_pipe) {
 970                 cx231xx_isocdbg("Reset endpoint to recover broken pipe.");
 971                 usb_reset_endpoint(dev->udev, dev->video_mode.end_point_addr);
 972         }
 973         kfree(dev->video_mode.bulk_ctl.urb);
 974         kfree(dev->video_mode.bulk_ctl.transfer_buffer);
 975         kfree(dma_q->p_left_data);
 976
 977         dev->video_mode.bulk_ctl.urb = NULL;
 978         dev->video_mode.bulk_ctl.transfer_buffer = NULL;
 979         dev->video_mode.bulk_ctl.num_bufs = 0;
 980         dma_q->p_left_data = NULL;
 981
 982         if (dev->mode_tv == 0)
 983                 cx231xx_capture_start(dev, 0, Raw_Video);
 984         else
 985                 cx231xx_capture_start(dev, 0, TS1_serial_mode);
 986
 987
 988 }
 989 EXPORT_SYMBOL_GPL(cx231xx_uninit_bulk);
 990
 991 /*
 992  * Allocate URBs and start IRQ
 993  */
 994 int cx231xx_init_isoc(struct cx231xx *dev, int max_packets,
 995                       int num_bufs, int max_pkt_size,
 996                       int (*isoc_copy) (struct cx231xx *dev, struct urb *urb))
 997 {
 998         struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
 999         int i;
1000         int sb_size, pipe;
1001         struct urb *urb;
1002         int j, k;
1003         int rc;
1004
1005         /* De-allocates all pending stuff */
1006         cx231xx_uninit_isoc(dev);
1007
1008         dma_q->p_left_data = kzalloc(4096, GFP_KERNEL);
1009         if (dma_q->p_left_data == NULL)
1010                 return -ENOMEM;
1011
1012         dev->video_mode.isoc_ctl.isoc_copy = isoc_copy;
1013         dev->video_mode.isoc_ctl.num_bufs = num_bufs;
1014         dma_q->pos = 0;
1015         dma_q->is_partial_line = 0;
1016         dma_q->last_sav = 0;
1017         dma_q->current_field = -1;
1018         dma_q->field1_done = 0;
1019         dma_q->lines_per_field = dev->height / 2;
1020         dma_q->bytes_left_in_line = dev->width << 1;
1021         dma_q->lines_completed = 0;
1022         dma_q->mpeg_buffer_done = 0;
1023         dma_q->left_data_count = 0;
1024         dma_q->mpeg_buffer_completed = 0;
1025         dma_q->add_ps_package_head = CX231XX_NEED_ADD_PS_PACKAGE_HEAD;
1026         dma_q->ps_head[0] = 0x00;
1027         dma_q->ps_head[1] = 0x00;
1028         dma_q->ps_head[2] = 0x01;
1029         dma_q->ps_head[3] = 0xBA;
1030         for (i = 0; i < 8; i++)
1031                 dma_q->partial_buf[i] = 0;
1032
1033         dev->video_mode.isoc_ctl.urb =
1034             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1035         if (!dev->video_mode.isoc_ctl.urb) {
1036                 dev_err(dev->dev,
1037                         "cannot alloc memory for usb buffers\n");
1038                 return -ENOMEM;
1039         }
1040
1041         dev->video_mode.isoc_ctl.transfer_buffer =
1042             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1043         if (!dev->video_mode.isoc_ctl.transfer_buffer) {
1044                 dev_err(dev->dev,
1045                         "cannot allocate memory for usbtransfer\n");
1046                 kfree(dev->video_mode.isoc_ctl.urb);
1047                 return -ENOMEM;
1048         }
1049
1050         dev->video_mode.isoc_ctl.max_pkt_size = max_pkt_size;
1051         dev->video_mode.isoc_ctl.buf = NULL;
1052
1053         sb_size = max_packets * dev->video_mode.isoc_ctl.max_pkt_size;
1054
1055         if (dev->mode_tv == 1)
1056                 dev->video_mode.end_point_addr = 0x81;
1057         else
1058                 dev->video_mode.end_point_addr = 0x84;
1059
1060
1061         /* allocate urbs and transfer buffers */
1062         for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1063                 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
1064                 if (!urb) {
1065                         cx231xx_uninit_isoc(dev);
1066                         return -ENOMEM;
1067                 }
1068                 dev->video_mode.isoc_ctl.urb[i] = urb;
1069
1070                 dev->video_mode.isoc_ctl.transfer_buffer[i] =
1071                     usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1072                                        &urb->transfer_dma);
1073                 if (!dev->video_mode.isoc_ctl.transfer_buffer[i]) {
1074                         dev_err(dev->dev,
1075                                 "unable to allocate %i bytes for transfer buffer %i%s\n",
1076                                 sb_size, i,
1077                                 in_interrupt() ? " while in int" : "");
1078                         cx231xx_uninit_isoc(dev);
1079                         return -ENOMEM;
1080                 }
1081                 memset(dev->video_mode.isoc_ctl.transfer_buffer[i], 0, sb_size);
1082
1083                 pipe =
1084                     usb_rcvisocpipe(dev->udev, dev->video_mode.end_point_addr);
1085
1086                 usb_fill_int_urb(urb, dev->udev, pipe,
1087                                  dev->video_mode.isoc_ctl.transfer_buffer[i],
1088                                  sb_size, cx231xx_isoc_irq_callback, dma_q, 1);
1089
1090                 urb->number_of_packets = max_packets;
1091                 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
1092
1093                 k = 0;
1094                 for (j = 0; j < max_packets; j++) {
1095                         urb->iso_frame_desc[j].offset = k;
1096                         urb->iso_frame_desc[j].length =
1097                             dev->video_mode.isoc_ctl.max_pkt_size;
1098                         k += dev->video_mode.isoc_ctl.max_pkt_size;
1099                 }
1100         }
1101
1102         init_waitqueue_head(&dma_q->wq);
1103
1104         /* submit urbs and enables IRQ */
1105         for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1106                 rc = usb_submit_urb(dev->video_mode.isoc_ctl.urb[i],
1107                                     GFP_ATOMIC);
1108                 if (rc) {
1109                         dev_err(dev->dev,
1110                                 "submit of urb %i failed (error=%i)\n", i,
1111                                 rc);
1112                         cx231xx_uninit_isoc(dev);
1113                         return rc;
1114                 }
1115         }
1116
1117         if (dev->mode_tv == 0)
1118                 cx231xx_capture_start(dev, 1, Raw_Video);
1119         else
1120                 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1121
1122         return 0;
1123 }
1124 EXPORT_SYMBOL_GPL(cx231xx_init_isoc);
1125
1126 /*
1127  * Allocate URBs and start IRQ
1128  */
1129 int cx231xx_init_bulk(struct cx231xx *dev, int max_packets,
1130                       int num_bufs, int max_pkt_size,
1131                       int (*bulk_copy) (struct cx231xx *dev, struct urb *urb))
1132 {
1133         struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
1134         int i;
1135         int sb_size, pipe;
1136         struct urb *urb;
1137         int rc;
1138
1139         dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
1140
1141         cx231xx_coredbg("Setting Video mux to %d\n", dev->video_input);
1142
1143         video_mux(dev, dev->video_input);
1144
1145         /* De-allocates all pending stuff */
1146         cx231xx_uninit_bulk(dev);
1147
1148         dev->video_mode.bulk_ctl.bulk_copy = bulk_copy;
1149         dev->video_mode.bulk_ctl.num_bufs = num_bufs;
1150         dma_q->pos = 0;
1151         dma_q->is_partial_line = 0;
1152         dma_q->last_sav = 0;
1153         dma_q->current_field = -1;
1154         dma_q->field1_done = 0;
1155         dma_q->lines_per_field = dev->height / 2;
1156         dma_q->bytes_left_in_line = dev->width << 1;
1157         dma_q->lines_completed = 0;
1158         dma_q->mpeg_buffer_done = 0;
1159         dma_q->left_data_count = 0;
1160         dma_q->mpeg_buffer_completed = 0;
1161         dma_q->ps_head[0] = 0x00;
1162         dma_q->ps_head[1] = 0x00;
1163         dma_q->ps_head[2] = 0x01;
1164         dma_q->ps_head[3] = 0xBA;
1165         for (i = 0; i < 8; i++)
1166                 dma_q->partial_buf[i] = 0;
1167
1168         dev->video_mode.bulk_ctl.urb =
1169             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1170         if (!dev->video_mode.bulk_ctl.urb) {
1171                 dev_err(dev->dev,
1172                         "cannot alloc memory for usb buffers\n");
1173                 return -ENOMEM;
1174         }
1175
1176         dev->video_mode.bulk_ctl.transfer_buffer =
1177             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1178         if (!dev->video_mode.bulk_ctl.transfer_buffer) {
1179                 dev_err(dev->dev,
1180                         "cannot allocate memory for usbtransfer\n");
1181                 kfree(dev->video_mode.bulk_ctl.urb);
1182                 return -ENOMEM;
1183         }
1184
1185         dev->video_mode.bulk_ctl.max_pkt_size = max_pkt_size;
1186         dev->video_mode.bulk_ctl.buf = NULL;
1187
1188         sb_size = max_packets * dev->video_mode.bulk_ctl.max_pkt_size;
1189
1190         if (dev->mode_tv == 1)
1191                 dev->video_mode.end_point_addr = 0x81;
1192         else
1193                 dev->video_mode.end_point_addr = 0x84;
1194
1195
1196         /* allocate urbs and transfer buffers */
1197         for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1198                 urb = usb_alloc_urb(0, GFP_KERNEL);
1199                 if (!urb) {
1200                         cx231xx_uninit_bulk(dev);
1201                         return -ENOMEM;
1202                 }
1203                 dev->video_mode.bulk_ctl.urb[i] = urb;
1204                 urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
1205
1206                 dev->video_mode.bulk_ctl.transfer_buffer[i] =
1207                     usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1208                                      &urb->transfer_dma);
1209                 if (!dev->video_mode.bulk_ctl.transfer_buffer[i]) {
1210                         dev_err(dev->dev,
1211                                 "unable to allocate %i bytes for transfer buffer %i%s\n",
1212                                 sb_size, i,
1213                                 in_interrupt() ? " while in int" : "");
1214                         cx231xx_uninit_bulk(dev);
1215                         return -ENOMEM;
1216                 }
1217                 memset(dev->video_mode.bulk_ctl.transfer_buffer[i], 0, sb_size);
1218
1219                 pipe = usb_rcvbulkpipe(dev->udev,
1220                                  dev->video_mode.end_point_addr);
1221                 usb_fill_bulk_urb(urb, dev->udev, pipe,
1222                                   dev->video_mode.bulk_ctl.transfer_buffer[i],
1223                                   sb_size, cx231xx_bulk_irq_callback, dma_q);
1224         }
1225
1226         /* clear halt */
1227         rc = usb_clear_halt(dev->udev, dev->video_mode.bulk_ctl.urb[0]->pipe);
1228         if (rc < 0) {
1229                 dev_err(dev->dev,
1230                         "failed to clear USB bulk endpoint stall/halt condition (error=%i)\n",
1231                         rc);
1232                 cx231xx_uninit_bulk(dev);
1233                 return rc;
1234         }
1235
1236         init_waitqueue_head(&dma_q->wq);
1237
1238         /* submit urbs and enables IRQ */
1239         for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1240                 rc = usb_submit_urb(dev->video_mode.bulk_ctl.urb[i],
1241                                     GFP_ATOMIC);
1242                 if (rc) {
1243                         dev_err(dev->dev,
1244                                 "submit of urb %i failed (error=%i)\n", i, rc);
1245                         cx231xx_uninit_bulk(dev);
1246                         return rc;
1247                 }
1248         }
1249
1250         if (dev->mode_tv == 0)
1251                 cx231xx_capture_start(dev, 1, Raw_Video);
1252         else
1253                 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1254
1255         return 0;
1256 }
1257 EXPORT_SYMBOL_GPL(cx231xx_init_bulk);
1258 void cx231xx_stop_TS1(struct cx231xx *dev)
1259 {
1260         u8 val[4] = { 0, 0, 0, 0 };
1261
1262         val[0] = 0x00;
1263         val[1] = 0x03;
1264         val[2] = 0x00;
1265         val[3] = 0x00;
1266         cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1267                         TS_MODE_REG, val, 4);
1268
1269         val[0] = 0x00;
1270         val[1] = 0x70;
1271         val[2] = 0x04;
1272         val[3] = 0x00;
1273         cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1274                         TS1_CFG_REG, val, 4);
1275 }
1276 /* EXPORT_SYMBOL_GPL(cx231xx_stop_TS1); */
1277 void cx231xx_start_TS1(struct cx231xx *dev)
1278 {
1279         u8 val[4] = { 0, 0, 0, 0 };
1280
1281         val[0] = 0x03;
1282         val[1] = 0x03;
1283         val[2] = 0x00;
1284         val[3] = 0x00;
1285         cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1286                         TS_MODE_REG, val, 4);
1287
1288         val[0] = 0x04;
1289         val[1] = 0xA3;
1290         val[2] = 0x3B;
1291         val[3] = 0x00;
1292         cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1293                         TS1_CFG_REG, val, 4);
1294 }
1295 /* EXPORT_SYMBOL_GPL(cx231xx_start_TS1); */
1296 /*****************************************************************
1297 *             Device Init/UnInit functions                       *
1298 ******************************************************************/
1299 int cx231xx_dev_init(struct cx231xx *dev)
1300 {
1301         int errCode = 0;
1302
1303         /* Initialize I2C bus */
1304
1305         /* External Master 1 Bus */
1306         dev->i2c_bus[0].nr = 0;
1307         dev->i2c_bus[0].dev = dev;
1308         dev->i2c_bus[0].i2c_period = I2C_SPEED_100K;    /* 100 KHz */
1309         dev->i2c_bus[0].i2c_nostop = 0;
1310         dev->i2c_bus[0].i2c_reserve = 0;
1311
1312         /* External Master 2 Bus */
1313         dev->i2c_bus[1].nr = 1;
1314         dev->i2c_bus[1].dev = dev;
1315         dev->i2c_bus[1].i2c_period = I2C_SPEED_100K;    /* 100 KHz */
1316         dev->i2c_bus[1].i2c_nostop = 0;
1317         dev->i2c_bus[1].i2c_reserve = 0;
1318
1319         /* Internal Master 3 Bus */
1320         dev->i2c_bus[2].nr = 2;
1321         dev->i2c_bus[2].dev = dev;
1322         dev->i2c_bus[2].i2c_period = I2C_SPEED_100K;    /* 100kHz */
1323         dev->i2c_bus[2].i2c_nostop = 0;
1324         dev->i2c_bus[2].i2c_reserve = 0;
1325
1326         /* register I2C buses */
1327         errCode = cx231xx_i2c_register(&dev->i2c_bus[0]);
1328         if (errCode < 0)
1329                 return errCode;
1330         errCode = cx231xx_i2c_register(&dev->i2c_bus[1]);
1331         if (errCode < 0)
1332                 return errCode;
1333         errCode = cx231xx_i2c_register(&dev->i2c_bus[2]);
1334         if (errCode < 0)
1335                 return errCode;
1336
1337         errCode = cx231xx_i2c_mux_create(dev);
1338         if (errCode < 0) {
1339                 dev_err(dev->dev,
1340                         "%s: Failed to create I2C mux\n", __func__);
1341                 return errCode;
1342         }
1343         errCode = cx231xx_i2c_mux_register(dev, 0);
1344         if (errCode < 0)
1345                 return errCode;
1346
1347         errCode = cx231xx_i2c_mux_register(dev, 1);
1348         if (errCode < 0)
1349                 return errCode;
1350
1351         /* scan the real bus segments in the order of physical port numbers */
1352         cx231xx_do_i2c_scan(dev, I2C_0);
1353         cx231xx_do_i2c_scan(dev, I2C_1_MUX_1);
1354         cx231xx_do_i2c_scan(dev, I2C_2);
1355         cx231xx_do_i2c_scan(dev, I2C_1_MUX_3);
1356
1357         /* init hardware */
1358         /* Note : with out calling set power mode function,
1359         afe can not be set up correctly */
1360         if (dev->board.external_av) {
1361                 errCode = cx231xx_set_power_mode(dev,
1362                                  POLARIS_AVMODE_ENXTERNAL_AV);
1363                 if (errCode < 0) {
1364                         dev_err(dev->dev,
1365                                 "%s: Failed to set Power - errCode [%d]!\n",
1366                                 __func__, errCode);
1367                         return errCode;
1368                 }
1369         } else {
1370                 errCode = cx231xx_set_power_mode(dev,
1371                                  POLARIS_AVMODE_ANALOGT_TV);
1372                 if (errCode < 0) {
1373                         dev_err(dev->dev,
1374                                 "%s: Failed to set Power - errCode [%d]!\n",
1375                                 __func__, errCode);
1376                         return errCode;
1377                 }
1378         }
1379
1380         /* reset the Tuner, if it is a Xceive tuner */
1381         if ((dev->board.tuner_type == TUNER_XC5000) ||
1382             (dev->board.tuner_type == TUNER_XC2028))
1383                         cx231xx_gpio_set(dev, dev->board.tuner_gpio);
1384
1385         /* initialize Colibri block */
1386         errCode = cx231xx_afe_init_super_block(dev, 0x23c);
1387         if (errCode < 0) {
1388                 dev_err(dev->dev,
1389                         "%s: cx231xx_afe init super block - errCode [%d]!\n",
1390                         __func__, errCode);
1391                 return errCode;
1392         }
1393         errCode = cx231xx_afe_init_channels(dev);
1394         if (errCode < 0) {
1395                 dev_err(dev->dev,
1396                         "%s: cx231xx_afe init channels - errCode [%d]!\n",
1397                         __func__, errCode);
1398                 return errCode;
1399         }
1400
1401         /* Set DIF in By pass mode */
1402         errCode = cx231xx_dif_set_standard(dev, DIF_USE_BASEBAND);
1403         if (errCode < 0) {
1404                 dev_err(dev->dev,
1405                         "%s: cx231xx_dif set to By pass mode - errCode [%d]!\n",
1406                         __func__, errCode);
1407                 return errCode;
1408         }
1409
1410         /* I2S block related functions */
1411         errCode = cx231xx_i2s_blk_initialize(dev);
1412         if (errCode < 0) {
1413                 dev_err(dev->dev,
1414                         "%s: cx231xx_i2s block initialize - errCode [%d]!\n",
1415                         __func__, errCode);
1416                 return errCode;
1417         }
1418
1419         /* init control pins */
1420         errCode = cx231xx_init_ctrl_pin_status(dev);
1421         if (errCode < 0) {
1422                 dev_err(dev->dev,
1423                         "%s: cx231xx_init ctrl pins - errCode [%d]!\n",
1424                         __func__, errCode);
1425                 return errCode;
1426         }
1427
1428         /* set AGC mode to Analog */
1429         switch (dev->model) {
1430         case CX231XX_BOARD_CNXT_CARRAERA:
1431         case CX231XX_BOARD_CNXT_RDE_250:
1432         case CX231XX_BOARD_CNXT_SHELBY:
1433         case CX231XX_BOARD_CNXT_RDU_250:
1434         errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
1435                 break;
1436         case CX231XX_BOARD_CNXT_RDE_253S:
1437         case CX231XX_BOARD_CNXT_RDU_253S:
1438         case CX231XX_BOARD_HAUPPAUGE_EXETER:
1439         case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
1440         case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
1441         case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
1442         case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
1443         errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
1444                 break;
1445         default:
1446                 break;
1447         }
1448         if (errCode < 0) {
1449                 dev_err(dev->dev,
1450                         "%s: cx231xx_AGC mode to Analog - errCode [%d]!\n",
1451                         __func__, errCode);
1452                 return errCode;
1453         }
1454
1455         /* set all alternate settings to zero initially */
1456         cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
1457         cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1458         cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
1459         if (dev->board.has_dvb)
1460                 cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
1461
1462         errCode = 0;
1463         return errCode;
1464 }
1465 EXPORT_SYMBOL_GPL(cx231xx_dev_init);
1466
1467 void cx231xx_dev_uninit(struct cx231xx *dev)
1468 {
1469         /* Un Initialize I2C bus */
1470         cx231xx_i2c_mux_unregister(dev);
1471         cx231xx_i2c_unregister(&dev->i2c_bus[2]);
1472         cx231xx_i2c_unregister(&dev->i2c_bus[1]);
1473         cx231xx_i2c_unregister(&dev->i2c_bus[0]);
1474 }
1475 EXPORT_SYMBOL_GPL(cx231xx_dev_uninit);
1476
1477 /*****************************************************************
1478 *              G P I O related functions                         *
1479 ******************************************************************/
1480 int cx231xx_send_gpio_cmd(struct cx231xx *dev, u32 gpio_bit, u8 *gpio_val,
1481                           u8 len, u8 request, u8 direction)
1482 {
1483         int status = 0;
1484         struct VENDOR_REQUEST_IN ven_req;
1485
1486         /* Set wValue */
1487         ven_req.wValue = (u16) (gpio_bit >> 16 & 0xffff);
1488
1489         /* set request */
1490         if (!request) {
1491                 if (direction)
1492                         ven_req.bRequest = VRT_GET_GPIO;        /* 0x9 gpio */
1493                 else
1494                         ven_req.bRequest = VRT_SET_GPIO;        /* 0x8 gpio */
1495         } else {
1496                 if (direction)
1497                         ven_req.bRequest = VRT_GET_GPIE;        /* 0xb gpie */
1498                 else
1499                         ven_req.bRequest = VRT_SET_GPIE;        /* 0xa gpie */
1500         }
1501
1502         /* set index value */
1503         ven_req.wIndex = (u16) (gpio_bit & 0xffff);
1504
1505         /* set wLength value */
1506         ven_req.wLength = len;
1507
1508         /* set bData value */
1509         ven_req.bData = 0;
1510
1511         /* set the buffer for read / write */
1512         ven_req.pBuff = gpio_val;
1513
1514         /* set the direction */
1515         if (direction) {
1516                 ven_req.direction = USB_DIR_IN;
1517                 memset(ven_req.pBuff, 0x00, ven_req.wLength);
1518         } else
1519                 ven_req.direction = USB_DIR_OUT;
1520
1521
1522         /* call common vendor command request */
1523         status = cx231xx_send_vendor_cmd(dev, &ven_req);
1524         if (status < 0) {
1525                 dev_err(dev->dev, "%s: failed with status -%d\n",
1526                         __func__, status);
1527         }
1528
1529         return status;
1530 }
1531 EXPORT_SYMBOL_GPL(cx231xx_send_gpio_cmd);
1532
1533 /*****************************************************************
1534  *    C O N T R O L - Register R E A D / W R I T E functions     *
1535  *****************************************************************/
1536 int cx231xx_mode_register(struct cx231xx *dev, u16 address, u32 mode)
1537 {
1538         u8 value[4] = { 0x0, 0x0, 0x0, 0x0 };
1539         u32 tmp = 0;
1540         int status = 0;
1541
1542         status =
1543             cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, address, value, 4);
1544         if (status < 0)
1545                 return status;
1546
1547         tmp = le32_to_cpu(*((__le32 *) value));
1548         tmp |= mode;
1549
1550         value[0] = (u8) tmp;
1551         value[1] = (u8) (tmp >> 8);
1552         value[2] = (u8) (tmp >> 16);
1553         value[3] = (u8) (tmp >> 24);
1554
1555         status =
1556             cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, address, value, 4);
1557
1558         return status;
1559 }
1560
1561 /*****************************************************************
1562  *            I 2 C Internal C O N T R O L   functions           *
1563  *****************************************************************/
1564 int cx231xx_read_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1565                           u8 saddr_len, u32 *data, u8 data_len, int master)
1566 {
1567         int status = 0;
1568         struct cx231xx_i2c_xfer_data req_data;
1569         u8 value[64] = "0";
1570
1571         if (saddr_len == 0)
1572                 saddr = 0;
1573         else if (saddr_len == 1)
1574                 saddr &= 0xff;
1575
1576         /* prepare xfer_data struct */
1577         req_data.dev_addr = dev_addr >> 1;
1578         req_data.direction = I2C_M_RD;
1579         req_data.saddr_len = saddr_len;
1580         req_data.saddr_dat = saddr;
1581         req_data.buf_size = data_len;
1582         req_data.p_buffer = (u8 *) value;
1583
1584         /* usb send command */
1585         if (master == 0)
1586                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1587                                          &req_data);
1588         else if (master == 1)
1589                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1590                                          &req_data);
1591         else if (master == 2)
1592                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1593                                          &req_data);
1594
1595         if (status >= 0) {
1596                 /* Copy the data read back to main buffer */
1597                 if (data_len == 1)
1598                         *data = value[0];
1599                 else if (data_len == 4)
1600                         *data =
1601                             value[0] | value[1] << 8 | value[2] << 16 | value[3]
1602                             << 24;
1603                 else if (data_len > 4)
1604                         *data = value[saddr];
1605         }
1606
1607         return status;
1608 }
1609
1610 int cx231xx_write_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1611                            u8 saddr_len, u32 data, u8 data_len, int master)
1612 {
1613         int status = 0;
1614         u8 value[4] = { 0, 0, 0, 0 };
1615         struct cx231xx_i2c_xfer_data req_data;
1616
1617         value[0] = (u8) data;
1618         value[1] = (u8) (data >> 8);
1619         value[2] = (u8) (data >> 16);
1620         value[3] = (u8) (data >> 24);
1621
1622         if (saddr_len == 0)
1623                 saddr = 0;
1624         else if (saddr_len == 1)
1625                 saddr &= 0xff;
1626
1627         /* prepare xfer_data struct */
1628         req_data.dev_addr = dev_addr >> 1;
1629         req_data.direction = 0;
1630         req_data.saddr_len = saddr_len;
1631         req_data.saddr_dat = saddr;
1632         req_data.buf_size = data_len;
1633         req_data.p_buffer = value;
1634
1635         /* usb send command */
1636         if (master == 0)
1637                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1638                                  &req_data);
1639         else if (master == 1)
1640                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1641                                  &req_data);
1642         else if (master == 2)
1643                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1644                                  &req_data);
1645
1646         return status;
1647 }
1648
1649 int cx231xx_read_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1650                           u8 saddr_len, u32 *data, u8 data_len)
1651 {
1652         int status = 0;
1653         struct cx231xx_i2c_xfer_data req_data;
1654         u8 value[4] = { 0, 0, 0, 0 };
1655
1656         if (saddr_len == 0)
1657                 saddr = 0;
1658         else if (saddr_len == 1)
1659                 saddr &= 0xff;
1660
1661         /* prepare xfer_data struct */
1662         req_data.dev_addr = dev_addr >> 1;
1663         req_data.direction = I2C_M_RD;
1664         req_data.saddr_len = saddr_len;
1665         req_data.saddr_dat = saddr;
1666         req_data.buf_size = data_len;
1667         req_data.p_buffer = (u8 *) value;
1668
1669         /* usb send command */
1670         status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1671
1672         if (status >= 0) {
1673                 /* Copy the data read back to main buffer */
1674                 if (data_len == 1)
1675                         *data = value[0];
1676                 else
1677                         *data =
1678                             value[0] | value[1] << 8 | value[2] << 16 | value[3]
1679                             << 24;
1680         }
1681
1682         return status;
1683 }
1684
1685 int cx231xx_write_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1686                            u8 saddr_len, u32 data, u8 data_len)
1687 {
1688         int status = 0;
1689         u8 value[4] = { 0, 0, 0, 0 };
1690         struct cx231xx_i2c_xfer_data req_data;
1691
1692         value[0] = (u8) data;
1693         value[1] = (u8) (data >> 8);
1694         value[2] = (u8) (data >> 16);
1695         value[3] = (u8) (data >> 24);
1696
1697         if (saddr_len == 0)
1698                 saddr = 0;
1699         else if (saddr_len == 1)
1700                 saddr &= 0xff;
1701
1702         /* prepare xfer_data struct */
1703         req_data.dev_addr = dev_addr >> 1;
1704         req_data.direction = 0;
1705         req_data.saddr_len = saddr_len;
1706         req_data.saddr_dat = saddr;
1707         req_data.buf_size = data_len;
1708         req_data.p_buffer = value;
1709
1710         /* usb send command */
1711         status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1712
1713         return status;
1714 }
1715
1716 int cx231xx_reg_mask_write(struct cx231xx *dev, u8 dev_addr, u8 size,
1717                            u16 register_address, u8 bit_start, u8 bit_end,
1718                            u32 value)
1719 {
1720         int status = 0;
1721         u32 tmp;
1722         u32 mask = 0;
1723         int i;
1724
1725         if (bit_start > (size - 1) || bit_end > (size - 1))
1726                 return -1;
1727
1728         if (size == 8) {
1729                 status =
1730                     cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1731                                           &tmp, 1);
1732         } else {
1733                 status =
1734                     cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1735                                           &tmp, 4);
1736         }
1737
1738         if (status < 0)
1739                 return status;
1740
1741         mask = 1 << bit_end;
1742         for (i = bit_end; i > bit_start && i > 0; i--)
1743                 mask = mask + (1 << (i - 1));
1744
1745         value <<= bit_start;
1746
1747         if (size == 8) {
1748                 tmp &= ~mask;
1749                 tmp |= value;
1750                 tmp &= 0xff;
1751                 status =
1752                     cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1753                                            tmp, 1);
1754         } else {
1755                 tmp &= ~mask;
1756                 tmp |= value;
1757                 status =
1758                     cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1759                                            tmp, 4);
1760         }
1761
1762         return status;
1763 }
1764
1765 int cx231xx_read_modify_write_i2c_dword(struct cx231xx *dev, u8 dev_addr,
1766                                         u16 saddr, u32 mask, u32 value)
1767 {
1768         u32 temp;
1769         int status = 0;
1770
1771         status = cx231xx_read_i2c_data(dev, dev_addr, saddr, 2, &temp, 4);
1772
1773         if (status < 0)
1774                 return status;
1775
1776         temp &= ~mask;
1777         temp |= value;
1778
1779         status = cx231xx_write_i2c_data(dev, dev_addr, saddr, 2, temp, 4);
1780
1781         return status;
1782 }
1783
1784 u32 cx231xx_set_field(u32 field_mask, u32 data)
1785 {
1786         u32 temp;
1787
1788         for (temp = field_mask; (temp & 1) == 0; temp >>= 1)
1789                 data <<= 1;
1790
1791         return data;
1792 }