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