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): %s:  %02x %02x %02x %02x %02x %02x %02x %02x ",
 245                                 dev->name,
 246                                 pipe,
 247                                 (requesttype & USB_DIR_IN) ? "IN" : "OUT",
 248                                 requesttype,
 249                                 request,
 250                                 value & 0xff, value >> 8,
 251                                 index & 0xff, index >> 8,
 252                                 size & 0xff, size >> 8);
 253                 if (!(requesttype & USB_DIR_IN)) {
 254                         printk(KERN_CONT ">>>");
 255                         for (i = 0; i < size; i++)
 256                                 printk(KERN_CONT " %02x",
 257                                        ((unsigned char *)data)[i]);
 258                 }
 259         }
 260
 261         /* Do the real call to usb_control_msg */
 262         mutex_lock(&dev->ctrl_urb_lock);
 263         if (!(requesttype & USB_DIR_IN) && size)
 264                 memcpy(dev->urb_buf, data, size);
 265         rc = usb_control_msg(dev->udev, pipe, request, requesttype, value,
 266                              index, dev->urb_buf, size, timeout);
 267         if ((requesttype & USB_DIR_IN) && size)
 268                 memcpy(data, dev->urb_buf, size);
 269         mutex_unlock(&dev->ctrl_urb_lock);
 270
 271         if (reg_debug) {
 272                 if (unlikely(rc < 0)) {
 273                         printk(KERN_CONT "FAILED!\n");
 274                         return rc;
 275                 }
 276
 277                 if ((requesttype & USB_DIR_IN)) {
 278                         printk(KERN_CONT "<<<");
 279                         for (i = 0; i < size; i++)
 280                                 printk(KERN_CONT " %02x",
 281                                        ((unsigned char *)data)[i]);
 282                 }
 283                 printk(KERN_CONT "\n");
 284         }
 285
 286         return rc;
 287 }
 288
 289
 290 /*
 291  * cx231xx_read_ctrl_reg()
 292  * reads data from the usb device specifying bRequest and wValue
 293  */
 294 int cx231xx_read_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg,
 295                           char *buf, int len)
 296 {
 297         u8 val = 0;
 298         int ret;
 299         int pipe = usb_rcvctrlpipe(dev->udev, 0);
 300
 301         if (dev->state & DEV_DISCONNECTED)
 302                 return -ENODEV;
 303
 304         if (len > URB_MAX_CTRL_SIZE)
 305                 return -EINVAL;
 306
 307         switch (len) {
 308         case 1:
 309                 val = ENABLE_ONE_BYTE;
 310                 break;
 311         case 2:
 312                 val = ENABLE_TWE_BYTE;
 313                 break;
 314         case 3:
 315                 val = ENABLE_THREE_BYTE;
 316                 break;
 317         case 4:
 318                 val = ENABLE_FOUR_BYTE;
 319                 break;
 320         default:
 321                 val = 0xFF;     /* invalid option */
 322         }
 323
 324         if (val == 0xFF)
 325                 return -EINVAL;
 326
 327         ret = __usb_control_msg(dev, pipe, req,
 328                               USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 329                               val, reg, buf, len, HZ);
 330         return ret;
 331 }
 332
 333 int cx231xx_send_vendor_cmd(struct cx231xx *dev,
 334                                 struct VENDOR_REQUEST_IN *ven_req)
 335 {
 336         int ret;
 337         int pipe = 0;
 338         int unsend_size = 0;
 339         u8 *pdata;
 340
 341         if (dev->state & DEV_DISCONNECTED)
 342                 return -ENODEV;
 343
 344         if ((ven_req->wLength > URB_MAX_CTRL_SIZE))
 345                 return -EINVAL;
 346
 347         if (ven_req->direction)
 348                 pipe = usb_rcvctrlpipe(dev->udev, 0);
 349         else
 350                 pipe = usb_sndctrlpipe(dev->udev, 0);
 351
 352         /*
 353          * If the cx23102 read more than 4 bytes with i2c bus,
 354          * need chop to 4 byte per request
 355          */
 356         if ((ven_req->wLength > 4) && ((ven_req->bRequest == 0x4) ||
 357                                         (ven_req->bRequest == 0x5) ||
 358                                         (ven_req->bRequest == 0x6) ||
 359
 360                                         /* Internal Master 3 Bus can send
 361                                          * and receive only 4 bytes per time
 362                                          */
 363                                         (ven_req->bRequest == 0x2))) {
 364                 unsend_size = 0;
 365                 pdata = ven_req->pBuff;
 366
 367
 368                 unsend_size = ven_req->wLength;
 369
 370                 /* the first package */
 371                 ven_req->wValue = ven_req->wValue & 0xFFFB;
 372                 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x2;
 373                 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
 374                         ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 375                         ven_req->wValue, ven_req->wIndex, pdata,
 376                         0x0004, HZ);
 377                 unsend_size = unsend_size - 4;
 378
 379                 /* the middle package */
 380                 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x42;
 381                 while (unsend_size - 4 > 0) {
 382                         pdata = pdata + 4;
 383                         ret = __usb_control_msg(dev, pipe,
 384                                 ven_req->bRequest,
 385                                 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 386                                 ven_req->wValue, ven_req->wIndex, pdata,
 387                                 0x0004, HZ);
 388                         unsend_size = unsend_size - 4;
 389                 }
 390
 391                 /* the last package */
 392                 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x40;
 393                 pdata = pdata + 4;
 394                 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
 395                         ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 396                         ven_req->wValue, ven_req->wIndex, pdata,
 397                         unsend_size, HZ);
 398         } else {
 399                 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
 400                                 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 401                                 ven_req->wValue, ven_req->wIndex,
 402                                 ven_req->pBuff, ven_req->wLength, HZ);
 403         }
 404
 405         return ret;
 406 }
 407
 408 /*
 409  * cx231xx_write_ctrl_reg()
 410  * sends data to the usb device, specifying bRequest
 411  */
 412 int cx231xx_write_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg, char *buf,
 413                            int len)
 414 {
 415         u8 val = 0;
 416         int ret;
 417         int pipe = usb_sndctrlpipe(dev->udev, 0);
 418
 419         if (dev->state & DEV_DISCONNECTED)
 420                 return -ENODEV;
 421
 422         if ((len < 1) || (len > URB_MAX_CTRL_SIZE))
 423                 return -EINVAL;
 424
 425         switch (len) {
 426         case 1:
 427                 val = ENABLE_ONE_BYTE;
 428                 break;
 429         case 2:
 430                 val = ENABLE_TWE_BYTE;
 431                 break;
 432         case 3:
 433                 val = ENABLE_THREE_BYTE;
 434                 break;
 435         case 4:
 436                 val = ENABLE_FOUR_BYTE;
 437                 break;
 438         default:
 439                 val = 0xFF;     /* invalid option */
 440         }
 441
 442         if (val == 0xFF)
 443                 return -EINVAL;
 444
 445         if (reg_debug) {
 446                 int byte;
 447
 448                 cx231xx_isocdbg("(pipe 0x%08x): OUT: %02x %02x %02x %02x %02x %02x %02x %02x >>>",
 449                         pipe,
 450                         USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 451                         req, 0, val, reg & 0xff,
 452                         reg >> 8, len & 0xff, len >> 8);
 453
 454                 for (byte = 0; byte < len; byte++)
 455                         cx231xx_isocdbg(" %02x", (unsigned char)buf[byte]);
 456                 cx231xx_isocdbg("\n");
 457         }
 458
 459         ret = __usb_control_msg(dev, pipe, req,
 460                               USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 461                               val, reg, buf, len, HZ);
 462
 463         return ret;
 464 }
 465
 466 /****************************************************************
 467 *           USB Alternate Setting functions                     *
 468 *****************************************************************/
 469
 470 int cx231xx_set_video_alternate(struct cx231xx *dev)
 471 {
 472         int errCode, prev_alt = dev->video_mode.alt;
 473         unsigned int min_pkt_size = dev->width * 2 + 4;
 474         u32 usb_interface_index = 0;
 475
 476         /* When image size is bigger than a certain value,
 477            the frame size should be increased, otherwise, only
 478            green screen will be received.
 479          */
 480         if (dev->width * 2 * dev->height > 720 * 240 * 2)
 481                 min_pkt_size *= 2;
 482
 483         if (dev->width > 360) {
 484                 /* resolutions: 720,704,640 */
 485                 dev->video_mode.alt = 3;
 486         } else if (dev->width > 180) {
 487                 /* resolutions: 360,352,320,240 */
 488                 dev->video_mode.alt = 2;
 489         } else if (dev->width > 0) {
 490                 /* resolutions: 180,176,160,128,88 */
 491                 dev->video_mode.alt = 1;
 492         } else {
 493                 /* Change to alt0 BULK to release USB bandwidth */
 494                 dev->video_mode.alt = 0;
 495         }
 496
 497         if (dev->USE_ISO == 0)
 498                 dev->video_mode.alt = 0;
 499
 500         cx231xx_coredbg("dev->video_mode.alt= %d\n", dev->video_mode.alt);
 501
 502         /* Get the correct video interface Index */
 503         usb_interface_index =
 504             dev->current_pcb_config.hs_config_info[0].interface_info.
 505             video_index + 1;
 506
 507         if (dev->video_mode.alt != prev_alt) {
 508                 cx231xx_coredbg("minimum isoc packet size: %u (alt=%d)\n",
 509                                 min_pkt_size, dev->video_mode.alt);
 510
 511                 if (dev->video_mode.alt_max_pkt_size != NULL)
 512                         dev->video_mode.max_pkt_size =
 513                         dev->video_mode.alt_max_pkt_size[dev->video_mode.alt];
 514                 cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u\n",
 515                                 dev->video_mode.alt,
 516                                 dev->video_mode.max_pkt_size);
 517                 errCode =
 518                     usb_set_interface(dev->udev, usb_interface_index,
 519                                       dev->video_mode.alt);
 520                 if (errCode < 0) {
 521                         dev_err(dev->dev,
 522                                 "cannot change alt number to %d (error=%i)\n",
 523                                 dev->video_mode.alt, errCode);
 524                         return errCode;
 525                 }
 526         }
 527         return 0;
 528 }
 529
 530 int cx231xx_set_alt_setting(struct cx231xx *dev, u8 index, u8 alt)
 531 {
 532         int status = 0;
 533         u32 usb_interface_index = 0;
 534         u32 max_pkt_size = 0;
 535
 536         switch (index) {
 537         case INDEX_TS1:
 538                 usb_interface_index =
 539                     dev->current_pcb_config.hs_config_info[0].interface_info.
 540                     ts1_index + 1;
 541                 dev->ts1_mode.alt = alt;
 542                 if (dev->ts1_mode.alt_max_pkt_size != NULL)
 543                         max_pkt_size = dev->ts1_mode.max_pkt_size =
 544                             dev->ts1_mode.alt_max_pkt_size[dev->ts1_mode.alt];
 545                 break;
 546         case INDEX_TS2:
 547                 usb_interface_index =
 548                     dev->current_pcb_config.hs_config_info[0].interface_info.
 549                     ts2_index + 1;
 550                 break;
 551         case INDEX_AUDIO:
 552                 usb_interface_index =
 553                     dev->current_pcb_config.hs_config_info[0].interface_info.
 554                     audio_index + 1;
 555                 dev->adev.alt = alt;
 556                 if (dev->adev.alt_max_pkt_size != NULL)
 557                         max_pkt_size = dev->adev.max_pkt_size =
 558                             dev->adev.alt_max_pkt_size[dev->adev.alt];
 559                 break;
 560         case INDEX_VIDEO:
 561                 usb_interface_index =
 562                     dev->current_pcb_config.hs_config_info[0].interface_info.
 563                     video_index + 1;
 564                 dev->video_mode.alt = alt;
 565                 if (dev->video_mode.alt_max_pkt_size != NULL)
 566                         max_pkt_size = dev->video_mode.max_pkt_size =
 567                             dev->video_mode.alt_max_pkt_size[dev->video_mode.
 568                                                              alt];
 569                 break;
 570         case INDEX_VANC:
 571                 if (dev->board.no_alt_vanc)
 572                         return 0;
 573                 usb_interface_index =
 574                     dev->current_pcb_config.hs_config_info[0].interface_info.
 575                     vanc_index + 1;
 576                 dev->vbi_mode.alt = alt;
 577                 if (dev->vbi_mode.alt_max_pkt_size != NULL)
 578                         max_pkt_size = dev->vbi_mode.max_pkt_size =
 579                             dev->vbi_mode.alt_max_pkt_size[dev->vbi_mode.alt];
 580                 break;
 581         case INDEX_HANC:
 582                 usb_interface_index =
 583                     dev->current_pcb_config.hs_config_info[0].interface_info.
 584                     hanc_index + 1;
 585                 dev->sliced_cc_mode.alt = alt;
 586                 if (dev->sliced_cc_mode.alt_max_pkt_size != NULL)
 587                         max_pkt_size = dev->sliced_cc_mode.max_pkt_size =
 588                             dev->sliced_cc_mode.alt_max_pkt_size[dev->
 589                                                                  sliced_cc_mode.
 590                                                                  alt];
 591                 break;
 592         default:
 593                 break;
 594         }
 595
 596         if (alt > 0 && max_pkt_size == 0) {
 597                 dev_err(dev->dev,
 598                         "can't change interface %d alt no. to %d: Max. Pkt size = 0\n",
 599                         usb_interface_index, alt);
 600                 /*To workaround error number=-71 on EP0 for videograbber,
 601                  need add following codes.*/
 602                 if (dev->board.no_alt_vanc)
 603                         return -1;
 604         }
 605
 606         cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u,Interface = %d\n",
 607                         alt, max_pkt_size,
 608                         usb_interface_index);
 609
 610         if (usb_interface_index > 0) {
 611                 status = usb_set_interface(dev->udev, usb_interface_index, alt);
 612                 if (status < 0) {
 613                         dev_err(dev->dev,
 614                                 "can't change interface %d alt no. to %d (err=%i)\n",
 615                                 usb_interface_index, alt, status);
 616                         return status;
 617                 }
 618         }
 619
 620         return status;
 621 }
 622 EXPORT_SYMBOL_GPL(cx231xx_set_alt_setting);
 623
 624 int cx231xx_gpio_set(struct cx231xx *dev, struct cx231xx_reg_seq *gpio)
 625 {
 626         int rc = 0;
 627
 628         if (!gpio)
 629                 return rc;
 630
 631         /* Send GPIO reset sequences specified at board entry */
 632         while (gpio->sleep >= 0) {
 633                 rc = cx231xx_set_gpio_value(dev, gpio->bit, gpio->val);
 634                 if (rc < 0)
 635                         return rc;
 636
 637                 if (gpio->sleep > 0)
 638                         msleep(gpio->sleep);
 639
 640                 gpio++;
 641         }
 642         return rc;
 643 }
 644
 645 int cx231xx_demod_reset(struct cx231xx *dev)
 646 {
 647
 648         u8 status = 0;
 649         u8 value[4] = { 0, 0, 0, 0 };
 650
 651         status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
 652                                  value, 4);
 653
 654         cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
 655                         value[0], value[1], value[2], value[3]);
 656
 657         cx231xx_coredbg("Enter cx231xx_demod_reset()\n");
 658
 659         value[1] = (u8) 0x3;
 660         status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
 661                                         PWR_CTL_EN, value, 4);
 662         msleep(10);
 663
 664         value[1] = (u8) 0x0;
 665         status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
 666                                         PWR_CTL_EN, value, 4);
 667         msleep(10);
 668
 669         value[1] = (u8) 0x3;
 670         status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
 671                                         PWR_CTL_EN, value, 4);
 672         msleep(10);
 673
 674         status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
 675                                  value, 4);
 676
 677         cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
 678                         value[0], value[1], value[2], value[3]);
 679
 680         return status;
 681 }
 682 EXPORT_SYMBOL_GPL(cx231xx_demod_reset);
 683 int is_fw_load(struct cx231xx *dev)
 684 {
 685         return cx231xx_check_fw(dev);
 686 }
 687 EXPORT_SYMBOL_GPL(is_fw_load);
 688
 689 int cx231xx_set_mode(struct cx231xx *dev, enum cx231xx_mode set_mode)
 690 {
 691         int errCode = 0;
 692
 693         if (dev->mode == set_mode)
 694                 return 0;
 695
 696         if (set_mode == CX231XX_SUSPEND) {
 697                 /* Set the chip in power saving mode */
 698                 dev->mode = set_mode;
 699         }
 700
 701         /* Resource is locked */
 702         if (dev->mode != CX231XX_SUSPEND)
 703                 return -EINVAL;
 704
 705         dev->mode = set_mode;
 706
 707         if (dev->mode == CX231XX_DIGITAL_MODE)/* Set Digital power mode */ {
 708         /* set AGC mode to Digital */
 709                 switch (dev->model) {
 710                 case CX231XX_BOARD_CNXT_CARRAERA:
 711                 case CX231XX_BOARD_CNXT_RDE_250:
 712                 case CX231XX_BOARD_CNXT_SHELBY:
 713                 case CX231XX_BOARD_CNXT_RDU_250:
 714                 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
 715                         break;
 716                 case CX231XX_BOARD_CNXT_RDE_253S:
 717                 case CX231XX_BOARD_CNXT_RDU_253S:
 718                 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
 719                         errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
 720                         break;
 721                 case CX231XX_BOARD_HAUPPAUGE_EXETER:
 722                 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
 723                         errCode = cx231xx_set_power_mode(dev,
 724                                                 POLARIS_AVMODE_DIGITAL);
 725                         break;
 726                 default:
 727                         break;
 728                 }
 729         } else/* Set Analog Power mode */ {
 730         /* set AGC mode to Analog */
 731                 switch (dev->model) {
 732                 case CX231XX_BOARD_CNXT_CARRAERA:
 733                 case CX231XX_BOARD_CNXT_RDE_250:
 734                 case CX231XX_BOARD_CNXT_SHELBY:
 735                 case CX231XX_BOARD_CNXT_RDU_250:
 736                 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
 737                         break;
 738                 case CX231XX_BOARD_CNXT_RDE_253S:
 739                 case CX231XX_BOARD_CNXT_RDU_253S:
 740                 case CX231XX_BOARD_HAUPPAUGE_EXETER:
 741                 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
 742                 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
 743                 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
 744                 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
 745                         errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
 746                         break;
 747                 default:
 748                         break;
 749                 }
 750         }
 751
 752         if (errCode < 0) {
 753                 dev_err(dev->dev, "Failed to set devmode to %s: error: %i",
 754                         dev->mode == CX231XX_DIGITAL_MODE ? "digital" : "analog",
 755                         errCode);
 756                 return errCode;
 757         }
 758
 759         return 0;
 760 }
 761 EXPORT_SYMBOL_GPL(cx231xx_set_mode);
 762
 763 int cx231xx_ep5_bulkout(struct cx231xx *dev, u8 *firmware, u16 size)
 764 {
 765         int errCode = 0;
 766         int actlen = -1;
 767         int ret = -ENOMEM;
 768         u32 *buffer;
 769
 770         buffer = kzalloc(4096, GFP_KERNEL);
 771         if (buffer == NULL)
 772                 return -ENOMEM;
 773         memcpy(&buffer[0], firmware, 4096);
 774
 775         ret = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 5),
 776                         buffer, 4096, &actlen, 2000);
 777
 778         if (ret)
 779                 dev_err(dev->dev,
 780                         "bulk message failed: %d (%d/%d)", ret,
 781                         size, actlen);
 782         else {
 783                 errCode = actlen != size ? -1 : 0;
 784         }
 785         kfree(buffer);
 786         return errCode;
 787 }
 788
 789 /*****************************************************************
 790 *                URB Streaming functions                         *
 791 ******************************************************************/
 792
 793 /*
 794  * IRQ callback, called by URB callback
 795  */
 796 static void cx231xx_isoc_irq_callback(struct urb *urb)
 797 {
 798         struct cx231xx_dmaqueue *dma_q = urb->context;
 799         struct cx231xx_video_mode *vmode =
 800             container_of(dma_q, struct cx231xx_video_mode, vidq);
 801         struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
 802         int i;
 803
 804         switch (urb->status) {
 805         case 0:         /* success */
 806         case -ETIMEDOUT:        /* NAK */
 807                 break;
 808         case -ECONNRESET:       /* kill */
 809         case -ENOENT:
 810         case -ESHUTDOWN:
 811                 return;
 812         default:                /* error */
 813                 cx231xx_isocdbg("urb completion error %d.\n", urb->status);
 814                 break;
 815         }
 816
 817         /* Copy data from URB */
 818         spin_lock(&dev->video_mode.slock);
 819         dev->video_mode.isoc_ctl.isoc_copy(dev, urb);
 820         spin_unlock(&dev->video_mode.slock);
 821
 822         /* Reset urb buffers */
 823         for (i = 0; i < urb->number_of_packets; i++) {
 824                 urb->iso_frame_desc[i].status = 0;
 825                 urb->iso_frame_desc[i].actual_length = 0;
 826         }
 827
 828         urb->status = usb_submit_urb(urb, GFP_ATOMIC);
 829         if (urb->status) {
 830                 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
 831                                 urb->status);
 832         }
 833 }
 834 /*****************************************************************
 835 *                URB Streaming functions                         *
 836 ******************************************************************/
 837
 838 /*
 839  * IRQ callback, called by URB callback
 840  */
 841 static void cx231xx_bulk_irq_callback(struct urb *urb)
 842 {
 843         struct cx231xx_dmaqueue *dma_q = urb->context;
 844         struct cx231xx_video_mode *vmode =
 845             container_of(dma_q, struct cx231xx_video_mode, vidq);
 846         struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
 847
 848         switch (urb->status) {
 849         case 0:         /* success */
 850         case -ETIMEDOUT:        /* NAK */
 851                 break;
 852         case -ECONNRESET:       /* kill */
 853         case -ENOENT:
 854         case -ESHUTDOWN:
 855                 return;
 856         case -EPIPE:            /* stall */
 857                 cx231xx_isocdbg("urb completion error - device is stalled.\n");
 858                 return;
 859         default:                /* error */
 860                 cx231xx_isocdbg("urb completion error %d.\n", urb->status);
 861                 break;
 862         }
 863
 864         /* Copy data from URB */
 865         spin_lock(&dev->video_mode.slock);
 866         dev->video_mode.bulk_ctl.bulk_copy(dev, urb);
 867         spin_unlock(&dev->video_mode.slock);
 868
 869         /* Reset urb buffers */
 870         urb->status = usb_submit_urb(urb, GFP_ATOMIC);
 871         if (urb->status) {
 872                 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
 873                                 urb->status);
 874         }
 875 }
 876 /*
 877  * Stop and Deallocate URBs
 878  */
 879 void cx231xx_uninit_isoc(struct cx231xx *dev)
 880 {
 881         struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
 882         struct urb *urb;
 883         int i;
 884         bool broken_pipe = false;
 885
 886         cx231xx_isocdbg("cx231xx: called cx231xx_uninit_isoc\n");
 887
 888         dev->video_mode.isoc_ctl.nfields = -1;
 889         for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
 890                 urb = dev->video_mode.isoc_ctl.urb[i];
 891                 if (urb) {
 892                         if (!irqs_disabled())
 893                                 usb_kill_urb(urb);
 894                         else
 895                                 usb_unlink_urb(urb);
 896
 897                         if (dev->video_mode.isoc_ctl.transfer_buffer[i]) {
 898                                 usb_free_coherent(dev->udev,
 899                                                   urb->transfer_buffer_length,
 900                                                   dev->video_mode.isoc_ctl.
 901                                                   transfer_buffer[i],
 902                                                   urb->transfer_dma);
 903                         }
 904                         if (urb->status == -EPIPE) {
 905                                 broken_pipe = true;
 906                         }
 907                         usb_free_urb(urb);
 908                         dev->video_mode.isoc_ctl.urb[i] = NULL;
 909                 }
 910                 dev->video_mode.isoc_ctl.transfer_buffer[i] = NULL;
 911         }
 912
 913         if (broken_pipe) {
 914                 cx231xx_isocdbg("Reset endpoint to recover broken pipe.");
 915                 usb_reset_endpoint(dev->udev, dev->video_mode.end_point_addr);
 916         }
 917         kfree(dev->video_mode.isoc_ctl.urb);
 918         kfree(dev->video_mode.isoc_ctl.transfer_buffer);
 919         kfree(dma_q->p_left_data);
 920
 921         dev->video_mode.isoc_ctl.urb = NULL;
 922         dev->video_mode.isoc_ctl.transfer_buffer = NULL;
 923         dev->video_mode.isoc_ctl.num_bufs = 0;
 924         dma_q->p_left_data = NULL;
 925
 926         if (dev->mode_tv == 0)
 927                 cx231xx_capture_start(dev, 0, Raw_Video);
 928         else
 929                 cx231xx_capture_start(dev, 0, TS1_serial_mode);
 930
 931
 932 }
 933 EXPORT_SYMBOL_GPL(cx231xx_uninit_isoc);
 934
 935 /*
 936  * Stop and Deallocate URBs
 937  */
 938 void cx231xx_uninit_bulk(struct cx231xx *dev)
 939 {
 940         struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
 941         struct urb *urb;
 942         int i;
 943         bool broken_pipe = false;
 944
 945         cx231xx_isocdbg("cx231xx: called cx231xx_uninit_bulk\n");
 946
 947         dev->video_mode.bulk_ctl.nfields = -1;
 948         for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
 949                 urb = dev->video_mode.bulk_ctl.urb[i];
 950                 if (urb) {
 951                         if (!irqs_disabled())
 952                                 usb_kill_urb(urb);
 953                         else
 954                                 usb_unlink_urb(urb);
 955
 956                         if (dev->video_mode.bulk_ctl.transfer_buffer[i]) {
 957                                 usb_free_coherent(dev->udev,
 958                                                 urb->transfer_buffer_length,
 959                                                 dev->video_mode.bulk_ctl.
 960                                                 transfer_buffer[i],
 961                                                 urb->transfer_dma);
 962                         }
 963                         if (urb->status == -EPIPE) {
 964                                 broken_pipe = true;
 965                         }
 966                         usb_free_urb(urb);
 967                         dev->video_mode.bulk_ctl.urb[i] = NULL;
 968                 }
 969                 dev->video_mode.bulk_ctl.transfer_buffer[i] = NULL;
 970         }
 971
 972         if (broken_pipe) {
 973                 cx231xx_isocdbg("Reset endpoint to recover broken pipe.");
 974                 usb_reset_endpoint(dev->udev, dev->video_mode.end_point_addr);
 975         }
 976         kfree(dev->video_mode.bulk_ctl.urb);
 977         kfree(dev->video_mode.bulk_ctl.transfer_buffer);
 978         kfree(dma_q->p_left_data);
 979
 980         dev->video_mode.bulk_ctl.urb = NULL;
 981         dev->video_mode.bulk_ctl.transfer_buffer = NULL;
 982         dev->video_mode.bulk_ctl.num_bufs = 0;
 983         dma_q->p_left_data = NULL;
 984
 985         if (dev->mode_tv == 0)
 986                 cx231xx_capture_start(dev, 0, Raw_Video);
 987         else
 988                 cx231xx_capture_start(dev, 0, TS1_serial_mode);
 989
 990
 991 }
 992 EXPORT_SYMBOL_GPL(cx231xx_uninit_bulk);
 993
 994 /*
 995  * Allocate URBs and start IRQ
 996  */
 997 int cx231xx_init_isoc(struct cx231xx *dev, int max_packets,
 998                       int num_bufs, int max_pkt_size,
 999                       int (*isoc_copy) (struct cx231xx *dev, struct urb *urb))
1000 {
1001         struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
1002         int i;
1003         int sb_size, pipe;
1004         struct urb *urb;
1005         int j, k;
1006         int rc;
1007
1008         /* De-allocates all pending stuff */
1009         cx231xx_uninit_isoc(dev);
1010
1011         dma_q->p_left_data = kzalloc(4096, GFP_KERNEL);
1012         if (dma_q->p_left_data == NULL)
1013                 return -ENOMEM;
1014
1015         dev->video_mode.isoc_ctl.isoc_copy = isoc_copy;
1016         dev->video_mode.isoc_ctl.num_bufs = num_bufs;
1017         dma_q->pos = 0;
1018         dma_q->is_partial_line = 0;
1019         dma_q->last_sav = 0;
1020         dma_q->current_field = -1;
1021         dma_q->field1_done = 0;
1022         dma_q->lines_per_field = dev->height / 2;
1023         dma_q->bytes_left_in_line = dev->width << 1;
1024         dma_q->lines_completed = 0;
1025         dma_q->mpeg_buffer_done = 0;
1026         dma_q->left_data_count = 0;
1027         dma_q->mpeg_buffer_completed = 0;
1028         dma_q->add_ps_package_head = CX231XX_NEED_ADD_PS_PACKAGE_HEAD;
1029         dma_q->ps_head[0] = 0x00;
1030         dma_q->ps_head[1] = 0x00;
1031         dma_q->ps_head[2] = 0x01;
1032         dma_q->ps_head[3] = 0xBA;
1033         for (i = 0; i < 8; i++)
1034                 dma_q->partial_buf[i] = 0;
1035
1036         dev->video_mode.isoc_ctl.urb =
1037             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1038         if (!dev->video_mode.isoc_ctl.urb) {
1039                 dev_err(dev->dev,
1040                         "cannot alloc memory for usb buffers\n");
1041                 return -ENOMEM;
1042         }
1043
1044         dev->video_mode.isoc_ctl.transfer_buffer =
1045             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1046         if (!dev->video_mode.isoc_ctl.transfer_buffer) {
1047                 dev_err(dev->dev,
1048                         "cannot allocate memory for usbtransfer\n");
1049                 kfree(dev->video_mode.isoc_ctl.urb);
1050                 return -ENOMEM;
1051         }
1052
1053         dev->video_mode.isoc_ctl.max_pkt_size = max_pkt_size;
1054         dev->video_mode.isoc_ctl.buf = NULL;
1055
1056         sb_size = max_packets * dev->video_mode.isoc_ctl.max_pkt_size;
1057
1058         if (dev->mode_tv == 1)
1059                 dev->video_mode.end_point_addr = 0x81;
1060         else
1061                 dev->video_mode.end_point_addr = 0x84;
1062
1063
1064         /* allocate urbs and transfer buffers */
1065         for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1066                 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
1067                 if (!urb) {
1068                         cx231xx_uninit_isoc(dev);
1069                         return -ENOMEM;
1070                 }
1071                 dev->video_mode.isoc_ctl.urb[i] = urb;
1072
1073                 dev->video_mode.isoc_ctl.transfer_buffer[i] =
1074                     usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1075                                        &urb->transfer_dma);
1076                 if (!dev->video_mode.isoc_ctl.transfer_buffer[i]) {
1077                         dev_err(dev->dev,
1078                                 "unable to allocate %i bytes for transfer buffer %i%s\n",
1079                                 sb_size, i,
1080                                 in_interrupt() ? " while in int" : "");
1081                         cx231xx_uninit_isoc(dev);
1082                         return -ENOMEM;
1083                 }
1084                 memset(dev->video_mode.isoc_ctl.transfer_buffer[i], 0, sb_size);
1085
1086                 pipe =
1087                     usb_rcvisocpipe(dev->udev, dev->video_mode.end_point_addr);
1088
1089                 usb_fill_int_urb(urb, dev->udev, pipe,
1090                                  dev->video_mode.isoc_ctl.transfer_buffer[i],
1091                                  sb_size, cx231xx_isoc_irq_callback, dma_q, 1);
1092
1093                 urb->number_of_packets = max_packets;
1094                 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
1095
1096                 k = 0;
1097                 for (j = 0; j < max_packets; j++) {
1098                         urb->iso_frame_desc[j].offset = k;
1099                         urb->iso_frame_desc[j].length =
1100                             dev->video_mode.isoc_ctl.max_pkt_size;
1101                         k += dev->video_mode.isoc_ctl.max_pkt_size;
1102                 }
1103         }
1104
1105         init_waitqueue_head(&dma_q->wq);
1106
1107         /* submit urbs and enables IRQ */
1108         for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1109                 rc = usb_submit_urb(dev->video_mode.isoc_ctl.urb[i],
1110                                     GFP_ATOMIC);
1111                 if (rc) {
1112                         dev_err(dev->dev,
1113                                 "submit of urb %i failed (error=%i)\n", i,
1114                                 rc);
1115                         cx231xx_uninit_isoc(dev);
1116                         return rc;
1117                 }
1118         }
1119
1120         if (dev->mode_tv == 0)
1121                 cx231xx_capture_start(dev, 1, Raw_Video);
1122         else
1123                 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1124
1125         return 0;
1126 }
1127 EXPORT_SYMBOL_GPL(cx231xx_init_isoc);
1128
1129 /*
1130  * Allocate URBs and start IRQ
1131  */
1132 int cx231xx_init_bulk(struct cx231xx *dev, int max_packets,
1133                       int num_bufs, int max_pkt_size,
1134                       int (*bulk_copy) (struct cx231xx *dev, struct urb *urb))
1135 {
1136         struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
1137         int i;
1138         int sb_size, pipe;
1139         struct urb *urb;
1140         int rc;
1141
1142         dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
1143
1144         cx231xx_coredbg("Setting Video mux to %d\n", dev->video_input);
1145
1146         video_mux(dev, dev->video_input);
1147
1148         /* De-allocates all pending stuff */
1149         cx231xx_uninit_bulk(dev);
1150
1151         dev->video_mode.bulk_ctl.bulk_copy = bulk_copy;
1152         dev->video_mode.bulk_ctl.num_bufs = num_bufs;
1153         dma_q->pos = 0;
1154         dma_q->is_partial_line = 0;
1155         dma_q->last_sav = 0;
1156         dma_q->current_field = -1;
1157         dma_q->field1_done = 0;
1158         dma_q->lines_per_field = dev->height / 2;
1159         dma_q->bytes_left_in_line = dev->width << 1;
1160         dma_q->lines_completed = 0;
1161         dma_q->mpeg_buffer_done = 0;
1162         dma_q->left_data_count = 0;
1163         dma_q->mpeg_buffer_completed = 0;
1164         dma_q->ps_head[0] = 0x00;
1165         dma_q->ps_head[1] = 0x00;
1166         dma_q->ps_head[2] = 0x01;
1167         dma_q->ps_head[3] = 0xBA;
1168         for (i = 0; i < 8; i++)
1169                 dma_q->partial_buf[i] = 0;
1170
1171         dev->video_mode.bulk_ctl.urb =
1172             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1173         if (!dev->video_mode.bulk_ctl.urb) {
1174                 dev_err(dev->dev,
1175                         "cannot alloc memory for usb buffers\n");
1176                 return -ENOMEM;
1177         }
1178
1179         dev->video_mode.bulk_ctl.transfer_buffer =
1180             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1181         if (!dev->video_mode.bulk_ctl.transfer_buffer) {
1182                 dev_err(dev->dev,
1183                         "cannot allocate memory for usbtransfer\n");
1184                 kfree(dev->video_mode.bulk_ctl.urb);
1185                 return -ENOMEM;
1186         }
1187
1188         dev->video_mode.bulk_ctl.max_pkt_size = max_pkt_size;
1189         dev->video_mode.bulk_ctl.buf = NULL;
1190
1191         sb_size = max_packets * dev->video_mode.bulk_ctl.max_pkt_size;
1192
1193         if (dev->mode_tv == 1)
1194                 dev->video_mode.end_point_addr = 0x81;
1195         else
1196                 dev->video_mode.end_point_addr = 0x84;
1197
1198
1199         /* allocate urbs and transfer buffers */
1200         for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1201                 urb = usb_alloc_urb(0, GFP_KERNEL);
1202                 if (!urb) {
1203                         cx231xx_uninit_bulk(dev);
1204                         return -ENOMEM;
1205                 }
1206                 dev->video_mode.bulk_ctl.urb[i] = urb;
1207                 urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
1208
1209                 dev->video_mode.bulk_ctl.transfer_buffer[i] =
1210                     usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1211                                      &urb->transfer_dma);
1212                 if (!dev->video_mode.bulk_ctl.transfer_buffer[i]) {
1213                         dev_err(dev->dev,
1214                                 "unable to allocate %i bytes for transfer buffer %i%s\n",
1215                                 sb_size, i,
1216                                 in_interrupt() ? " while in int" : "");
1217                         cx231xx_uninit_bulk(dev);
1218                         return -ENOMEM;
1219                 }
1220                 memset(dev->video_mode.bulk_ctl.transfer_buffer[i], 0, sb_size);
1221
1222                 pipe = usb_rcvbulkpipe(dev->udev,
1223                                  dev->video_mode.end_point_addr);
1224                 usb_fill_bulk_urb(urb, dev->udev, pipe,
1225                                   dev->video_mode.bulk_ctl.transfer_buffer[i],
1226                                   sb_size, cx231xx_bulk_irq_callback, dma_q);
1227         }
1228
1229         /* clear halt */
1230         rc = usb_clear_halt(dev->udev, dev->video_mode.bulk_ctl.urb[0]->pipe);
1231         if (rc < 0) {
1232                 dev_err(dev->dev,
1233                         "failed to clear USB bulk endpoint stall/halt condition (error=%i)\n",
1234                         rc);
1235                 cx231xx_uninit_bulk(dev);
1236                 return rc;
1237         }
1238
1239         init_waitqueue_head(&dma_q->wq);
1240
1241         /* submit urbs and enables IRQ */
1242         for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1243                 rc = usb_submit_urb(dev->video_mode.bulk_ctl.urb[i],
1244                                     GFP_ATOMIC);
1245                 if (rc) {
1246                         dev_err(dev->dev,
1247                                 "submit of urb %i failed (error=%i)\n", i, rc);
1248                         cx231xx_uninit_bulk(dev);
1249                         return rc;
1250                 }
1251         }
1252
1253         if (dev->mode_tv == 0)
1254                 cx231xx_capture_start(dev, 1, Raw_Video);
1255         else
1256                 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1257
1258         return 0;
1259 }
1260 EXPORT_SYMBOL_GPL(cx231xx_init_bulk);
1261 void cx231xx_stop_TS1(struct cx231xx *dev)
1262 {
1263         u8 val[4] = { 0, 0, 0, 0 };
1264
1265         val[0] = 0x00;
1266         val[1] = 0x03;
1267         val[2] = 0x00;
1268         val[3] = 0x00;
1269         cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1270                         TS_MODE_REG, val, 4);
1271
1272         val[0] = 0x00;
1273         val[1] = 0x70;
1274         val[2] = 0x04;
1275         val[3] = 0x00;
1276         cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1277                         TS1_CFG_REG, val, 4);
1278 }
1279 /* EXPORT_SYMBOL_GPL(cx231xx_stop_TS1); */
1280 void cx231xx_start_TS1(struct cx231xx *dev)
1281 {
1282         u8 val[4] = { 0, 0, 0, 0 };
1283
1284         val[0] = 0x03;
1285         val[1] = 0x03;
1286         val[2] = 0x00;
1287         val[3] = 0x00;
1288         cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1289                         TS_MODE_REG, val, 4);
1290
1291         val[0] = 0x04;
1292         val[1] = 0xA3;
1293         val[2] = 0x3B;
1294         val[3] = 0x00;
1295         cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1296                         TS1_CFG_REG, val, 4);
1297 }
1298 /* EXPORT_SYMBOL_GPL(cx231xx_start_TS1); */
1299 /*****************************************************************
1300 *             Device Init/UnInit functions                       *
1301 ******************************************************************/
1302 int cx231xx_dev_init(struct cx231xx *dev)
1303 {
1304         int errCode = 0;
1305
1306         /* Initialize I2C bus */
1307
1308         /* External Master 1 Bus */
1309         dev->i2c_bus[0].nr = 0;
1310         dev->i2c_bus[0].dev = dev;
1311         dev->i2c_bus[0].i2c_period = I2C_SPEED_100K;    /* 100 KHz */
1312         dev->i2c_bus[0].i2c_nostop = 0;
1313         dev->i2c_bus[0].i2c_reserve = 0;
1314         dev->i2c_bus[0].i2c_rc = -ENODEV;
1315
1316         /* External Master 2 Bus */
1317         dev->i2c_bus[1].nr = 1;
1318         dev->i2c_bus[1].dev = dev;
1319         dev->i2c_bus[1].i2c_period = I2C_SPEED_100K;    /* 100 KHz */
1320         dev->i2c_bus[1].i2c_nostop = 0;
1321         dev->i2c_bus[1].i2c_reserve = 0;
1322         dev->i2c_bus[1].i2c_rc = -ENODEV;
1323
1324         /* Internal Master 3 Bus */
1325         dev->i2c_bus[2].nr = 2;
1326         dev->i2c_bus[2].dev = dev;
1327         dev->i2c_bus[2].i2c_period = I2C_SPEED_100K;    /* 100kHz */
1328         dev->i2c_bus[2].i2c_nostop = 0;
1329         dev->i2c_bus[2].i2c_reserve = 0;
1330         dev->i2c_bus[2].i2c_rc = -ENODEV;
1331
1332         /* register I2C buses */
1333         errCode = cx231xx_i2c_register(&dev->i2c_bus[0]);
1334         if (errCode < 0)
1335                 return errCode;
1336         errCode = cx231xx_i2c_register(&dev->i2c_bus[1]);
1337         if (errCode < 0)
1338                 return errCode;
1339         errCode = cx231xx_i2c_register(&dev->i2c_bus[2]);
1340         if (errCode < 0)
1341                 return errCode;
1342
1343         errCode = cx231xx_i2c_mux_create(dev);
1344         if (errCode < 0) {
1345                 dev_err(dev->dev,
1346                         "%s: Failed to create I2C mux\n", __func__);
1347                 return errCode;
1348         }
1349         errCode = cx231xx_i2c_mux_register(dev, 0);
1350         if (errCode < 0)
1351                 return errCode;
1352
1353         errCode = cx231xx_i2c_mux_register(dev, 1);
1354         if (errCode < 0)
1355                 return errCode;
1356
1357         /* scan the real bus segments in the order of physical port numbers */
1358         cx231xx_do_i2c_scan(dev, I2C_0);
1359         cx231xx_do_i2c_scan(dev, I2C_1_MUX_1);
1360         cx231xx_do_i2c_scan(dev, I2C_2);
1361         cx231xx_do_i2c_scan(dev, I2C_1_MUX_3);
1362
1363         /* init hardware */
1364         /* Note : with out calling set power mode function,
1365         afe can not be set up correctly */
1366         if (dev->board.external_av) {
1367                 errCode = cx231xx_set_power_mode(dev,
1368                                  POLARIS_AVMODE_ENXTERNAL_AV);
1369                 if (errCode < 0) {
1370                         dev_err(dev->dev,
1371                                 "%s: Failed to set Power - errCode [%d]!\n",
1372                                 __func__, errCode);
1373                         return errCode;
1374                 }
1375         } else {
1376                 errCode = cx231xx_set_power_mode(dev,
1377                                  POLARIS_AVMODE_ANALOGT_TV);
1378                 if (errCode < 0) {
1379                         dev_err(dev->dev,
1380                                 "%s: Failed to set Power - errCode [%d]!\n",
1381                                 __func__, errCode);
1382                         return errCode;
1383                 }
1384         }
1385
1386         /* reset the Tuner, if it is a Xceive tuner */
1387         if ((dev->board.tuner_type == TUNER_XC5000) ||
1388             (dev->board.tuner_type == TUNER_XC2028))
1389                         cx231xx_gpio_set(dev, dev->board.tuner_gpio);
1390
1391         /* initialize Colibri block */
1392         errCode = cx231xx_afe_init_super_block(dev, 0x23c);
1393         if (errCode < 0) {
1394                 dev_err(dev->dev,
1395                         "%s: cx231xx_afe init super block - errCode [%d]!\n",
1396                         __func__, errCode);
1397                 return errCode;
1398         }
1399         errCode = cx231xx_afe_init_channels(dev);
1400         if (errCode < 0) {
1401                 dev_err(dev->dev,
1402                         "%s: cx231xx_afe init channels - errCode [%d]!\n",
1403                         __func__, errCode);
1404                 return errCode;
1405         }
1406
1407         /* Set DIF in By pass mode */
1408         errCode = cx231xx_dif_set_standard(dev, DIF_USE_BASEBAND);
1409         if (errCode < 0) {
1410                 dev_err(dev->dev,
1411                         "%s: cx231xx_dif set to By pass mode - errCode [%d]!\n",
1412                         __func__, errCode);
1413                 return errCode;
1414         }
1415
1416         /* I2S block related functions */
1417         errCode = cx231xx_i2s_blk_initialize(dev);
1418         if (errCode < 0) {
1419                 dev_err(dev->dev,
1420                         "%s: cx231xx_i2s block initialize - errCode [%d]!\n",
1421                         __func__, errCode);
1422                 return errCode;
1423         }
1424
1425         /* init control pins */
1426         errCode = cx231xx_init_ctrl_pin_status(dev);
1427         if (errCode < 0) {
1428                 dev_err(dev->dev,
1429                         "%s: cx231xx_init ctrl pins - errCode [%d]!\n",
1430                         __func__, errCode);
1431                 return errCode;
1432         }
1433
1434         /* set AGC mode to Analog */
1435         switch (dev->model) {
1436         case CX231XX_BOARD_CNXT_CARRAERA:
1437         case CX231XX_BOARD_CNXT_RDE_250:
1438         case CX231XX_BOARD_CNXT_SHELBY:
1439         case CX231XX_BOARD_CNXT_RDU_250:
1440         errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
1441                 break;
1442         case CX231XX_BOARD_CNXT_RDE_253S:
1443         case CX231XX_BOARD_CNXT_RDU_253S:
1444         case CX231XX_BOARD_HAUPPAUGE_EXETER:
1445         case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
1446         case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
1447         case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
1448         case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
1449         errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
1450                 break;
1451         default:
1452                 break;
1453         }
1454         if (errCode < 0) {
1455                 dev_err(dev->dev,
1456                         "%s: cx231xx_AGC mode to Analog - errCode [%d]!\n",
1457                         __func__, errCode);
1458                 return errCode;
1459         }
1460
1461         /* set all alternate settings to zero initially */
1462         cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
1463         cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1464         cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
1465         if (dev->board.has_dvb)
1466                 cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
1467
1468         errCode = 0;
1469         return errCode;
1470 }
1471 EXPORT_SYMBOL_GPL(cx231xx_dev_init);
1472
1473 void cx231xx_dev_uninit(struct cx231xx *dev)
1474 {
1475         /* Un Initialize I2C bus */
1476         cx231xx_i2c_mux_unregister(dev);
1477         cx231xx_i2c_unregister(&dev->i2c_bus[2]);
1478         cx231xx_i2c_unregister(&dev->i2c_bus[1]);
1479         cx231xx_i2c_unregister(&dev->i2c_bus[0]);
1480 }
1481 EXPORT_SYMBOL_GPL(cx231xx_dev_uninit);
1482
1483 /*****************************************************************
1484 *              G P I O related functions                         *
1485 ******************************************************************/
1486 int cx231xx_send_gpio_cmd(struct cx231xx *dev, u32 gpio_bit, u8 *gpio_val,
1487                           u8 len, u8 request, u8 direction)
1488 {
1489         int status = 0;
1490         struct VENDOR_REQUEST_IN ven_req;
1491
1492         /* Set wValue */
1493         ven_req.wValue = (u16) (gpio_bit >> 16 & 0xffff);
1494
1495         /* set request */
1496         if (!request) {
1497                 if (direction)
1498                         ven_req.bRequest = VRT_GET_GPIO;        /* 0x9 gpio */
1499                 else
1500                         ven_req.bRequest = VRT_SET_GPIO;        /* 0x8 gpio */
1501         } else {
1502                 if (direction)
1503                         ven_req.bRequest = VRT_GET_GPIE;        /* 0xb gpie */
1504                 else
1505                         ven_req.bRequest = VRT_SET_GPIE;        /* 0xa gpie */
1506         }
1507
1508         /* set index value */
1509         ven_req.wIndex = (u16) (gpio_bit & 0xffff);
1510
1511         /* set wLength value */
1512         ven_req.wLength = len;
1513
1514         /* set bData value */
1515         ven_req.bData = 0;
1516
1517         /* set the buffer for read / write */
1518         ven_req.pBuff = gpio_val;
1519
1520         /* set the direction */
1521         if (direction) {
1522                 ven_req.direction = USB_DIR_IN;
1523                 memset(ven_req.pBuff, 0x00, ven_req.wLength);
1524         } else
1525                 ven_req.direction = USB_DIR_OUT;
1526
1527
1528         /* call common vendor command request */
1529         status = cx231xx_send_vendor_cmd(dev, &ven_req);
1530         if (status < 0) {
1531                 dev_err(dev->dev, "%s: failed with status -%d\n",
1532                         __func__, status);
1533         }
1534
1535         return status;
1536 }
1537 EXPORT_SYMBOL_GPL(cx231xx_send_gpio_cmd);
1538
1539 /*****************************************************************
1540  *    C O N T R O L - Register R E A D / W R I T E functions     *
1541  *****************************************************************/
1542 int cx231xx_mode_register(struct cx231xx *dev, u16 address, u32 mode)
1543 {
1544         u8 value[4] = { 0x0, 0x0, 0x0, 0x0 };
1545         u32 tmp = 0;
1546         int status = 0;
1547
1548         status =
1549             cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, address, value, 4);
1550         if (status < 0)
1551                 return status;
1552
1553         tmp = le32_to_cpu(*((__le32 *) value));
1554         tmp |= mode;
1555
1556         value[0] = (u8) tmp;
1557         value[1] = (u8) (tmp >> 8);
1558         value[2] = (u8) (tmp >> 16);
1559         value[3] = (u8) (tmp >> 24);
1560
1561         status =
1562             cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, address, value, 4);
1563
1564         return status;
1565 }
1566
1567 /*****************************************************************
1568  *            I 2 C Internal C O N T R O L   functions           *
1569  *****************************************************************/
1570 int cx231xx_read_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1571                           u8 saddr_len, u32 *data, u8 data_len, int master)
1572 {
1573         int status = 0;
1574         struct cx231xx_i2c_xfer_data req_data;
1575         u8 value[64] = "0";
1576
1577         if (saddr_len == 0)
1578                 saddr = 0;
1579         else if (saddr_len == 1)
1580                 saddr &= 0xff;
1581
1582         /* prepare xfer_data struct */
1583         req_data.dev_addr = dev_addr >> 1;
1584         req_data.direction = I2C_M_RD;
1585         req_data.saddr_len = saddr_len;
1586         req_data.saddr_dat = saddr;
1587         req_data.buf_size = data_len;
1588         req_data.p_buffer = (u8 *) value;
1589
1590         /* usb send command */
1591         if (master == 0)
1592                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1593                                          &req_data);
1594         else if (master == 1)
1595                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1596                                          &req_data);
1597         else if (master == 2)
1598                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1599                                          &req_data);
1600
1601         if (status >= 0) {
1602                 /* Copy the data read back to main buffer */
1603                 if (data_len == 1)
1604                         *data = value[0];
1605                 else if (data_len == 4)
1606                         *data =
1607                             value[0] | value[1] << 8 | value[2] << 16 | value[3]
1608                             << 24;
1609                 else if (data_len > 4)
1610                         *data = value[saddr];
1611         }
1612
1613         return status;
1614 }
1615
1616 int cx231xx_write_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1617                            u8 saddr_len, u32 data, u8 data_len, int master)
1618 {
1619         int status = 0;
1620         u8 value[4] = { 0, 0, 0, 0 };
1621         struct cx231xx_i2c_xfer_data req_data;
1622
1623         value[0] = (u8) data;
1624         value[1] = (u8) (data >> 8);
1625         value[2] = (u8) (data >> 16);
1626         value[3] = (u8) (data >> 24);
1627
1628         if (saddr_len == 0)
1629                 saddr = 0;
1630         else if (saddr_len == 1)
1631                 saddr &= 0xff;
1632
1633         /* prepare xfer_data struct */
1634         req_data.dev_addr = dev_addr >> 1;
1635         req_data.direction = 0;
1636         req_data.saddr_len = saddr_len;
1637         req_data.saddr_dat = saddr;
1638         req_data.buf_size = data_len;
1639         req_data.p_buffer = value;
1640
1641         /* usb send command */
1642         if (master == 0)
1643                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1644                                  &req_data);
1645         else if (master == 1)
1646                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1647                                  &req_data);
1648         else if (master == 2)
1649                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1650                                  &req_data);
1651
1652         return status;
1653 }
1654
1655 int cx231xx_read_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1656                           u8 saddr_len, u32 *data, u8 data_len)
1657 {
1658         int status = 0;
1659         struct cx231xx_i2c_xfer_data req_data;
1660         u8 value[4] = { 0, 0, 0, 0 };
1661
1662         if (saddr_len == 0)
1663                 saddr = 0;
1664         else if (saddr_len == 1)
1665                 saddr &= 0xff;
1666
1667         /* prepare xfer_data struct */
1668         req_data.dev_addr = dev_addr >> 1;
1669         req_data.direction = I2C_M_RD;
1670         req_data.saddr_len = saddr_len;
1671         req_data.saddr_dat = saddr;
1672         req_data.buf_size = data_len;
1673         req_data.p_buffer = (u8 *) value;
1674
1675         /* usb send command */
1676         status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1677
1678         if (status >= 0) {
1679                 /* Copy the data read back to main buffer */
1680                 if (data_len == 1)
1681                         *data = value[0];
1682                 else
1683                         *data =
1684                             value[0] | value[1] << 8 | value[2] << 16 | value[3]
1685                             << 24;
1686         }
1687
1688         return status;
1689 }
1690
1691 int cx231xx_write_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1692                            u8 saddr_len, u32 data, u8 data_len)
1693 {
1694         int status = 0;
1695         u8 value[4] = { 0, 0, 0, 0 };
1696         struct cx231xx_i2c_xfer_data req_data;
1697
1698         value[0] = (u8) data;
1699         value[1] = (u8) (data >> 8);
1700         value[2] = (u8) (data >> 16);
1701         value[3] = (u8) (data >> 24);
1702
1703         if (saddr_len == 0)
1704                 saddr = 0;
1705         else if (saddr_len == 1)
1706                 saddr &= 0xff;
1707
1708         /* prepare xfer_data struct */
1709         req_data.dev_addr = dev_addr >> 1;
1710         req_data.direction = 0;
1711         req_data.saddr_len = saddr_len;
1712         req_data.saddr_dat = saddr;
1713         req_data.buf_size = data_len;
1714         req_data.p_buffer = value;
1715
1716         /* usb send command */
1717         status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1718
1719         return status;
1720 }
1721
1722 int cx231xx_reg_mask_write(struct cx231xx *dev, u8 dev_addr, u8 size,
1723                            u16 register_address, u8 bit_start, u8 bit_end,
1724                            u32 value)
1725 {
1726         int status = 0;
1727         u32 tmp;
1728         u32 mask = 0;
1729         int i;
1730
1731         if (bit_start > (size - 1) || bit_end > (size - 1))
1732                 return -1;
1733
1734         if (size == 8) {
1735                 status =
1736                     cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1737                                           &tmp, 1);
1738         } else {
1739                 status =
1740                     cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1741                                           &tmp, 4);
1742         }
1743
1744         if (status < 0)
1745                 return status;
1746
1747         mask = 1 << bit_end;
1748         for (i = bit_end; i > bit_start && i > 0; i--)
1749                 mask = mask + (1 << (i - 1));
1750
1751         value <<= bit_start;
1752
1753         if (size == 8) {
1754                 tmp &= ~mask;
1755                 tmp |= value;
1756                 tmp &= 0xff;
1757                 status =
1758                     cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1759                                            tmp, 1);
1760         } else {
1761                 tmp &= ~mask;
1762                 tmp |= value;
1763                 status =
1764                     cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1765                                            tmp, 4);
1766         }
1767
1768         return status;
1769 }
1770
1771 int cx231xx_read_modify_write_i2c_dword(struct cx231xx *dev, u8 dev_addr,
1772                                         u16 saddr, u32 mask, u32 value)
1773 {
1774         u32 temp;
1775         int status = 0;
1776
1777         status = cx231xx_read_i2c_data(dev, dev_addr, saddr, 2, &temp, 4);
1778
1779         if (status < 0)
1780                 return status;
1781
1782         temp &= ~mask;
1783         temp |= value;
1784
1785         status = cx231xx_write_i2c_data(dev, dev_addr, saddr, 2, temp, 4);
1786
1787         return status;
1788 }
1789
1790 u32 cx231xx_set_field(u32 field_mask, u32 data)
1791 {
1792         u32 temp;
1793
1794         for (temp = field_mask; (temp & 1) == 0; temp >>= 1)
1795                 data <<= 1;
1796
1797         return data;
1798 }