drivers/media/video/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 <linux/init.h>
  24 #include <linux/list.h>
  25 #include <linux/module.h>
  26 #include <linux/slab.h>
  27 #include <linux/usb.h>
  28 #include <linux/vmalloc.h>
  29 #include <media/v4l2-common.h>
  30 #include <media/tuner.h>
  31
  32 #include "cx231xx.h"
  33 #include "cx231xx-reg.h"
  34
  35 /* #define ENABLE_DEBUG_ISOC_FRAMES */
  36
  37 static unsigned int core_debug;
  38 module_param(core_debug, int, 0644);
  39 MODULE_PARM_DESC(core_debug, "enable debug messages [core]");
  40
  41 #define cx231xx_coredbg(fmt, arg...) do {\
  42         if (core_debug) \
  43                 printk(KERN_INFO "%s %s :"fmt, \
  44                          dev->name, __func__ , ##arg); } while (0)
  45
  46 static unsigned int reg_debug;
  47 module_param(reg_debug, int, 0644);
  48 MODULE_PARM_DESC(reg_debug, "enable debug messages [URB reg]");
  49
  50 static int alt = CX231XX_PINOUT;
  51 module_param(alt, int, 0644);
  52 MODULE_PARM_DESC(alt, "alternate setting to use for video endpoint");
  53
  54 #define cx231xx_isocdbg(fmt, arg...) do {\
  55         if (core_debug) \
  56                 printk(KERN_INFO "%s %s :"fmt, \
  57                          dev->name, __func__ , ##arg); } while (0)
  58
  59 /*****************************************************************
  60 *             Device control list functions                                      *
  61 ******************************************************************/
  62
  63 LIST_HEAD(cx231xx_devlist);
  64 static DEFINE_MUTEX(cx231xx_devlist_mutex);
  65
  66 /*
  67  * cx231xx_realease_resources()
  68  * unregisters the v4l2,i2c and usb devices
  69  * called when the device gets disconected or at module unload
  70 */
  71 void cx231xx_remove_from_devlist(struct cx231xx *dev)
  72 {
  73         if (dev == NULL)
  74                 return;
  75         if (dev->udev == NULL)
  76                 return;
  77
  78         if (atomic_read(&dev->devlist_count) > 0) {
  79                 mutex_lock(&cx231xx_devlist_mutex);
  80                 list_del(&dev->devlist);
  81                 atomic_dec(&dev->devlist_count);
  82                 mutex_unlock(&cx231xx_devlist_mutex);
  83         }
  84 };
  85
  86 void cx231xx_add_into_devlist(struct cx231xx *dev)
  87 {
  88         mutex_lock(&cx231xx_devlist_mutex);
  89         list_add_tail(&dev->devlist, &cx231xx_devlist);
  90         atomic_inc(&dev->devlist_count);
  91         mutex_unlock(&cx231xx_devlist_mutex);
  92 };
  93
  94 static LIST_HEAD(cx231xx_extension_devlist);
  95
  96 int cx231xx_register_extension(struct cx231xx_ops *ops)
  97 {
  98         struct cx231xx *dev = NULL;
  99
 100         mutex_lock(&cx231xx_devlist_mutex);
 101         list_add_tail(&ops->next, &cx231xx_extension_devlist);
 102         list_for_each_entry(dev, &cx231xx_devlist, devlist)
 103                 ops->init(dev);
 104
 105         printk(KERN_INFO DRIVER_NAME ": %s initialized\n", ops->name);
 106         mutex_unlock(&cx231xx_devlist_mutex);
 107         return 0;
 108 }
 109 EXPORT_SYMBOL(cx231xx_register_extension);
 110
 111 void cx231xx_unregister_extension(struct cx231xx_ops *ops)
 112 {
 113         struct cx231xx *dev = NULL;
 114
 115         mutex_lock(&cx231xx_devlist_mutex);
 116         list_for_each_entry(dev, &cx231xx_devlist, devlist)
 117                 ops->fini(dev);
 118
 119
 120         printk(KERN_INFO DRIVER_NAME ": %s removed\n", ops->name);
 121         list_del(&ops->next);
 122         mutex_unlock(&cx231xx_devlist_mutex);
 123 }
 124 EXPORT_SYMBOL(cx231xx_unregister_extension);
 125
 126 void cx231xx_init_extension(struct cx231xx *dev)
 127 {
 128         struct cx231xx_ops *ops = NULL;
 129
 130         mutex_lock(&cx231xx_devlist_mutex);
 131         if (!list_empty(&cx231xx_extension_devlist)) {
 132                 list_for_each_entry(ops, &cx231xx_extension_devlist, next) {
 133                         if (ops->init)
 134                                 ops->init(dev);
 135                 }
 136         }
 137         mutex_unlock(&cx231xx_devlist_mutex);
 138 }
 139
 140 void cx231xx_close_extension(struct cx231xx *dev)
 141 {
 142         struct cx231xx_ops *ops = NULL;
 143
 144         mutex_lock(&cx231xx_devlist_mutex);
 145         if (!list_empty(&cx231xx_extension_devlist)) {
 146                 list_for_each_entry(ops, &cx231xx_extension_devlist, next) {
 147                         if (ops->fini)
 148                                 ops->fini(dev);
 149                 }
 150         }
 151         mutex_unlock(&cx231xx_devlist_mutex);
 152 }
 153
 154 /****************************************************************
 155 *               U S B related functions                         *
 156 *****************************************************************/
 157 int cx231xx_send_usb_command(struct cx231xx_i2c *i2c_bus,
 158                              struct cx231xx_i2c_xfer_data *req_data)
 159 {
 160         int status = 0;
 161         struct cx231xx *dev = i2c_bus->dev;
 162         struct VENDOR_REQUEST_IN ven_req;
 163
 164         u8 saddr_len = 0;
 165         u8 _i2c_period = 0;
 166         u8 _i2c_nostop = 0;
 167         u8 _i2c_reserve = 0;
 168
 169         /* Get the I2C period, nostop and reserve parameters */
 170         _i2c_period = i2c_bus->i2c_period;
 171         _i2c_nostop = i2c_bus->i2c_nostop;
 172         _i2c_reserve = i2c_bus->i2c_reserve;
 173
 174         saddr_len = req_data->saddr_len;
 175
 176         /* Set wValue */
 177         if (saddr_len == 1)     /* need check saddr_len == 0  */
 178                 ven_req.wValue =
 179                     req_data->
 180                     dev_addr << 9 | _i2c_period << 4 | saddr_len << 2 |
 181                     _i2c_nostop << 1 | I2C_SYNC | _i2c_reserve << 6;
 182         else
 183                 ven_req.wValue =
 184                     req_data->
 185                     dev_addr << 9 | _i2c_period << 4 | saddr_len << 2 |
 186                     _i2c_nostop << 1 | I2C_SYNC | _i2c_reserve << 6;
 187
 188         /* set channel number */
 189         if (req_data->direction & I2C_M_RD) {
 190                 /* channel number, for read,spec required channel_num +4 */
 191                 ven_req.bRequest = i2c_bus->nr + 4;
 192         } else
 193                 ven_req.bRequest = i2c_bus->nr; /* channel number,  */
 194
 195         /* set index value */
 196         switch (saddr_len) {
 197         case 0:
 198                 ven_req.wIndex = 0;     /* need check */
 199                 break;
 200         case 1:
 201                 ven_req.wIndex = (req_data->saddr_dat & 0xff);
 202                 break;
 203         case 2:
 204                 ven_req.wIndex = req_data->saddr_dat;
 205                 break;
 206         }
 207
 208         /* set wLength value */
 209         ven_req.wLength = req_data->buf_size;
 210
 211         /* set bData value */
 212         ven_req.bData = 0;
 213
 214         /* set the direction */
 215         if (req_data->direction) {
 216                 ven_req.direction = USB_DIR_IN;
 217                 memset(req_data->p_buffer, 0x00, ven_req.wLength);
 218         } else
 219                 ven_req.direction = USB_DIR_OUT;
 220
 221         /* set the buffer for read / write */
 222         ven_req.pBuff = req_data->p_buffer;
 223
 224
 225         /* call common vendor command request */
 226         status = cx231xx_send_vendor_cmd(dev, &ven_req);
 227         if (status < 0) {
 228                 cx231xx_info
 229                     ("UsbInterface::sendCommand, failed with status -%d\n",
 230                      status);
 231         }
 232
 233         return status;
 234 }
 235 EXPORT_SYMBOL_GPL(cx231xx_send_usb_command);
 236
 237 /*
 238  * Sends/Receives URB control messages, assuring to use a kalloced buffer
 239  * for all operations (dev->urb_buf), to avoid using stacked buffers, as
 240  * they aren't safe for usage with USB, due to DMA restrictions.
 241  * Also implements the debug code for control URB's.
 242  */
 243 static int __usb_control_msg(struct cx231xx *dev, unsigned int pipe,
 244         __u8 request, __u8 requesttype, __u16 value, __u16 index,
 245         void *data, __u16 size, int timeout)
 246 {
 247         int rc, i;
 248
 249         if (reg_debug) {
 250                 printk(KERN_DEBUG "%s: (pipe 0x%08x): "
 251                                 "%s:  %02x %02x %02x %02x %02x %02x %02x %02x ",
 252                                 dev->name,
 253                                 pipe,
 254                                 (requesttype & USB_DIR_IN) ? "IN" : "OUT",
 255                                 requesttype,
 256                                 request,
 257                                 value & 0xff, value >> 8,
 258                                 index & 0xff, index >> 8,
 259                                 size & 0xff, size >> 8);
 260                 if (!(requesttype & USB_DIR_IN)) {
 261                         printk(KERN_CONT ">>>");
 262                         for (i = 0; i < size; i++)
 263                                 printk(KERN_CONT " %02x",
 264                                        ((unsigned char *)data)[i]);
 265                 }
 266         }
 267
 268         /* Do the real call to usb_control_msg */
 269         mutex_lock(&dev->ctrl_urb_lock);
 270         if (!(requesttype & USB_DIR_IN) && size)
 271                 memcpy(dev->urb_buf, data, size);
 272         rc = usb_control_msg(dev->udev, pipe, request, requesttype, value,
 273                              index, dev->urb_buf, size, timeout);
 274         if ((requesttype & USB_DIR_IN) && size)
 275                 memcpy(data, dev->urb_buf, size);
 276         mutex_unlock(&dev->ctrl_urb_lock);
 277
 278         if (reg_debug) {
 279                 if (unlikely(rc < 0)) {
 280                         printk(KERN_CONT "FAILED!\n");
 281                         return rc;
 282                 }
 283
 284                 if ((requesttype & USB_DIR_IN)) {
 285                         printk(KERN_CONT "<<<");
 286                         for (i = 0; i < size; i++)
 287                                 printk(KERN_CONT " %02x",
 288                                        ((unsigned char *)data)[i]);
 289                 }
 290                 printk(KERN_CONT "\n");
 291         }
 292
 293         return rc;
 294 }
 295
 296
 297 /*
 298  * cx231xx_read_ctrl_reg()
 299  * reads data from the usb device specifying bRequest and wValue
 300  */
 301 int cx231xx_read_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg,
 302                           char *buf, int len)
 303 {
 304         u8 val = 0;
 305         int ret;
 306         int pipe = usb_rcvctrlpipe(dev->udev, 0);
 307
 308         if (dev->state & DEV_DISCONNECTED)
 309                 return -ENODEV;
 310
 311         if (len > URB_MAX_CTRL_SIZE)
 312                 return -EINVAL;
 313
 314         switch (len) {
 315         case 1:
 316                 val = ENABLE_ONE_BYTE;
 317                 break;
 318         case 2:
 319                 val = ENABLE_TWE_BYTE;
 320                 break;
 321         case 3:
 322                 val = ENABLE_THREE_BYTE;
 323                 break;
 324         case 4:
 325                 val = ENABLE_FOUR_BYTE;
 326                 break;
 327         default:
 328                 val = 0xFF;     /* invalid option */
 329         }
 330
 331         if (val == 0xFF)
 332                 return -EINVAL;
 333
 334         ret = __usb_control_msg(dev, pipe, req,
 335                               USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 336                               val, reg, buf, len, HZ);
 337         return ret;
 338 }
 339
 340 int cx231xx_send_vendor_cmd(struct cx231xx *dev,
 341                                 struct VENDOR_REQUEST_IN *ven_req)
 342 {
 343         int ret;
 344         int pipe = 0;
 345         int unsend_size = 0;
 346         u8 *pdata;
 347
 348         if (dev->state & DEV_DISCONNECTED)
 349                 return -ENODEV;
 350
 351         if ((ven_req->wLength > URB_MAX_CTRL_SIZE))
 352                 return -EINVAL;
 353
 354         if (ven_req->direction)
 355                 pipe = usb_rcvctrlpipe(dev->udev, 0);
 356         else
 357                 pipe = usb_sndctrlpipe(dev->udev, 0);
 358
 359         /*
 360          * If the cx23102 read more than 4 bytes with i2c bus,
 361          * need chop to 4 byte per request
 362          */
 363         if ((ven_req->wLength > 4) && ((ven_req->bRequest == 0x4) ||
 364                                         (ven_req->bRequest == 0x5) ||
 365                                         (ven_req->bRequest == 0x6))) {
 366                 unsend_size = 0;
 367                 pdata = ven_req->pBuff;
 368
 369
 370                 unsend_size = ven_req->wLength;
 371
 372                 /* the first package */
 373                 ven_req->wValue = ven_req->wValue & 0xFFFB;
 374                 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x2;
 375                 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
 376                         ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 377                         ven_req->wValue, ven_req->wIndex, pdata,
 378                         0x0004, HZ);
 379                 unsend_size = unsend_size - 4;
 380
 381                 /* the middle package */
 382                 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x42;
 383                 while (unsend_size - 4 > 0) {
 384                         pdata = pdata + 4;
 385                         ret = __usb_control_msg(dev, pipe,
 386                                 ven_req->bRequest,
 387                                 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 388                                 ven_req->wValue, ven_req->wIndex, pdata,
 389                                 0x0004, HZ);
 390                         unsend_size = unsend_size - 4;
 391                 }
 392
 393                 /* the last package */
 394                 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x40;
 395                 pdata = pdata + 4;
 396                 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
 397                         ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 398                         ven_req->wValue, ven_req->wIndex, pdata,
 399                         unsend_size, HZ);
 400         } else {
 401                 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
 402                                 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 403                                 ven_req->wValue, ven_req->wIndex,
 404                                 ven_req->pBuff, ven_req->wLength, HZ);
 405         }
 406
 407         return ret;
 408 }
 409
 410 /*
 411  * cx231xx_write_ctrl_reg()
 412  * sends data to the usb device, specifying bRequest
 413  */
 414 int cx231xx_write_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg, char *buf,
 415                            int len)
 416 {
 417         u8 val = 0;
 418         int ret;
 419         int pipe = usb_sndctrlpipe(dev->udev, 0);
 420
 421         if (dev->state & DEV_DISCONNECTED)
 422                 return -ENODEV;
 423
 424         if ((len < 1) || (len > URB_MAX_CTRL_SIZE))
 425                 return -EINVAL;
 426
 427         switch (len) {
 428         case 1:
 429                 val = ENABLE_ONE_BYTE;
 430                 break;
 431         case 2:
 432                 val = ENABLE_TWE_BYTE;
 433                 break;
 434         case 3:
 435                 val = ENABLE_THREE_BYTE;
 436                 break;
 437         case 4:
 438                 val = ENABLE_FOUR_BYTE;
 439                 break;
 440         default:
 441                 val = 0xFF;     /* invalid option */
 442         }
 443
 444         if (val == 0xFF)
 445                 return -EINVAL;
 446
 447         if (reg_debug) {
 448                 int byte;
 449
 450                 cx231xx_isocdbg("(pipe 0x%08x): "
 451                         "OUT: %02x %02x %02x %02x %02x %02x %02x %02x >>>",
 452                         pipe,
 453                         USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 454                         req, 0, val, reg & 0xff,
 455                         reg >> 8, len & 0xff, len >> 8);
 456
 457                 for (byte = 0; byte < len; byte++)
 458                         cx231xx_isocdbg(" %02x", (unsigned char)buf[byte]);
 459                 cx231xx_isocdbg("\n");
 460         }
 461
 462         ret = __usb_control_msg(dev, pipe, req,
 463                               USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 464                               val, reg, buf, len, HZ);
 465
 466         return ret;
 467 }
 468
 469 /****************************************************************
 470 *           USB Alternate Setting functions                     *
 471 *****************************************************************/
 472
 473 int cx231xx_set_video_alternate(struct cx231xx *dev)
 474 {
 475         int errCode, prev_alt = dev->video_mode.alt;
 476         unsigned int min_pkt_size = dev->width * 2 + 4;
 477         u32 usb_interface_index = 0;
 478
 479         /* When image size is bigger than a certain value,
 480            the frame size should be increased, otherwise, only
 481            green screen will be received.
 482          */
 483         if (dev->width * 2 * dev->height > 720 * 240 * 2)
 484                 min_pkt_size *= 2;
 485
 486         if (dev->width > 360) {
 487                 /* resolutions: 720,704,640 */
 488                 dev->video_mode.alt = 3;
 489         } else if (dev->width > 180) {
 490                 /* resolutions: 360,352,320,240 */
 491                 dev->video_mode.alt = 2;
 492         } else if (dev->width > 0) {
 493                 /* resolutions: 180,176,160,128,88 */
 494                 dev->video_mode.alt = 1;
 495         } else {
 496                 /* Change to alt0 BULK to release USB bandwidth */
 497                 dev->video_mode.alt = 0;
 498         }
 499
 500         if (dev->USE_ISO == 0)
 501                 dev->video_mode.alt = 0;
 502
 503         cx231xx_coredbg("dev->video_mode.alt= %d\n", dev->video_mode.alt);
 504
 505         /* Get the correct video interface Index */
 506         usb_interface_index =
 507             dev->current_pcb_config.hs_config_info[0].interface_info.
 508             video_index + 1;
 509
 510         if (dev->video_mode.alt != prev_alt) {
 511                 cx231xx_coredbg("minimum isoc packet size: %u (alt=%d)\n",
 512                                 min_pkt_size, dev->video_mode.alt);
 513
 514                 if (dev->video_mode.alt_max_pkt_size != NULL)
 515                         dev->video_mode.max_pkt_size =
 516                         dev->video_mode.alt_max_pkt_size[dev->video_mode.alt];
 517                 cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u\n",
 518                                 dev->video_mode.alt,
 519                                 dev->video_mode.max_pkt_size);
 520                 errCode =
 521                     usb_set_interface(dev->udev, usb_interface_index,
 522                                       dev->video_mode.alt);
 523                 if (errCode < 0) {
 524                         cx231xx_errdev
 525                             ("cannot change alt number to %d (error=%i)\n",
 526                              dev->video_mode.alt, errCode);
 527                         return errCode;
 528                 }
 529         }
 530         return 0;
 531 }
 532
 533 int cx231xx_set_alt_setting(struct cx231xx *dev, u8 index, u8 alt)
 534 {
 535         int status = 0;
 536         u32 usb_interface_index = 0;
 537         u32 max_pkt_size = 0;
 538
 539         switch (index) {
 540         case INDEX_TS1:
 541                 usb_interface_index =
 542                     dev->current_pcb_config.hs_config_info[0].interface_info.
 543                     ts1_index + 1;
 544                 dev->ts1_mode.alt = alt;
 545                 if (dev->ts1_mode.alt_max_pkt_size != NULL)
 546                         max_pkt_size = dev->ts1_mode.max_pkt_size =
 547                             dev->ts1_mode.alt_max_pkt_size[dev->ts1_mode.alt];
 548                 break;
 549         case INDEX_TS2:
 550                 usb_interface_index =
 551                     dev->current_pcb_config.hs_config_info[0].interface_info.
 552                     ts2_index + 1;
 553                 break;
 554         case INDEX_AUDIO:
 555                 usb_interface_index =
 556                     dev->current_pcb_config.hs_config_info[0].interface_info.
 557                     audio_index + 1;
 558                 dev->adev.alt = alt;
 559                 if (dev->adev.alt_max_pkt_size != NULL)
 560                         max_pkt_size = dev->adev.max_pkt_size =
 561                             dev->adev.alt_max_pkt_size[dev->adev.alt];
 562                 break;
 563         case INDEX_VIDEO:
 564                 usb_interface_index =
 565                     dev->current_pcb_config.hs_config_info[0].interface_info.
 566                     video_index + 1;
 567                 dev->video_mode.alt = alt;
 568                 if (dev->video_mode.alt_max_pkt_size != NULL)
 569                         max_pkt_size = dev->video_mode.max_pkt_size =
 570                             dev->video_mode.alt_max_pkt_size[dev->video_mode.
 571                                                              alt];
 572                 break;
 573         case INDEX_VANC:
 574                 usb_interface_index =
 575                     dev->current_pcb_config.hs_config_info[0].interface_info.
 576                     vanc_index + 1;
 577                 dev->vbi_mode.alt = alt;
 578                 if (dev->vbi_mode.alt_max_pkt_size != NULL)
 579                         max_pkt_size = dev->vbi_mode.max_pkt_size =
 580                             dev->vbi_mode.alt_max_pkt_size[dev->vbi_mode.alt];
 581                 break;
 582         case INDEX_HANC:
 583                 usb_interface_index =
 584                     dev->current_pcb_config.hs_config_info[0].interface_info.
 585                     hanc_index + 1;
 586                 dev->sliced_cc_mode.alt = alt;
 587                 if (dev->sliced_cc_mode.alt_max_pkt_size != NULL)
 588                         max_pkt_size = dev->sliced_cc_mode.max_pkt_size =
 589                             dev->sliced_cc_mode.alt_max_pkt_size[dev->
 590                                                                  sliced_cc_mode.
 591                                                                  alt];
 592                 break;
 593         default:
 594                 break;
 595         }
 596
 597         if (alt > 0 && max_pkt_size == 0) {
 598                 cx231xx_errdev
 599                 ("can't change interface %d alt no. to %d: Max. Pkt size = 0\n",
 600                 usb_interface_index, alt);
 601                 /*To workaround error number=-71 on EP0 for videograbber,
 602                  need add following codes.*/
 603                 if (dev->model != CX231XX_BOARD_CNXT_VIDEO_GRABBER &&
 604                     dev->model != CX231XX_BOARD_HAUPPAUGE_USBLIVE2)
 605                         return -1;
 606         }
 607
 608         cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u,"
 609                         "Interface = %d\n", alt, max_pkt_size,
 610                         usb_interface_index);
 611
 612         if (usb_interface_index > 0) {
 613                 status = usb_set_interface(dev->udev, usb_interface_index, alt);
 614                 if (status < 0) {
 615                         cx231xx_errdev
 616                         ("can't change interface %d alt no. to %d (err=%i)\n",
 617                         usb_interface_index, alt, status);
 618                         return status;
 619                 }
 620         }
 621
 622         return status;
 623 }
 624 EXPORT_SYMBOL_GPL(cx231xx_set_alt_setting);
 625
 626 int cx231xx_gpio_set(struct cx231xx *dev, struct cx231xx_reg_seq *gpio)
 627 {
 628         int rc = 0;
 629
 630         if (!gpio)
 631                 return rc;
 632
 633         /* Send GPIO reset sequences specified at board entry */
 634         while (gpio->sleep >= 0) {
 635                 rc = cx231xx_set_gpio_value(dev, gpio->bit, gpio->val);
 636                 if (rc < 0)
 637                         return rc;
 638
 639                 if (gpio->sleep > 0)
 640                         msleep(gpio->sleep);
 641
 642                 gpio++;
 643         }
 644         return rc;
 645 }
 646
 647 int cx231xx_demod_reset(struct cx231xx *dev)
 648 {
 649
 650         u8 status = 0;
 651         u8 value[4] = { 0, 0, 0, 0 };
 652
 653         status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
 654                                  value, 4);
 655
 656         cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
 657                         value[0], value[1], value[2], value[3]);
 658
 659         cx231xx_coredbg("Enter cx231xx_demod_reset()\n");
 660
 661                 value[1] = (u8) 0x3;
 662                 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
 663                                                 PWR_CTL_EN, value, 4);
 664                         msleep(10);
 665
 666                 value[1] = (u8) 0x0;
 667                 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
 668                                                 PWR_CTL_EN, value, 4);
 669                         msleep(10);
 670
 671                 value[1] = (u8) 0x3;
 672                 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
 673                                                 PWR_CTL_EN, value, 4);
 674                         msleep(10);
 675
 676
 677
 678         status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
 679                                  value, 4);
 680
 681         cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
 682                         value[0], value[1], value[2], value[3]);
 683
 684         return status;
 685 }
 686 EXPORT_SYMBOL_GPL(cx231xx_demod_reset);
 687 int is_fw_load(struct cx231xx *dev)
 688 {
 689         return cx231xx_check_fw(dev);
 690 }
 691 EXPORT_SYMBOL_GPL(is_fw_load);
 692
 693 int cx231xx_set_mode(struct cx231xx *dev, enum cx231xx_mode set_mode)
 694 {
 695         int errCode = 0;
 696
 697         if (dev->mode == set_mode)
 698                 return 0;
 699
 700         if (set_mode == CX231XX_SUSPEND) {
 701                 /* Set the chip in power saving mode */
 702                 dev->mode = set_mode;
 703         }
 704
 705         /* Resource is locked */
 706         if (dev->mode != CX231XX_SUSPEND)
 707                 return -EINVAL;
 708
 709         dev->mode = set_mode;
 710
 711         if (dev->mode == CX231XX_DIGITAL_MODE)/* Set Digital power mode */ {
 712         /* set AGC mode to Digital */
 713                 switch (dev->model) {
 714                 case CX231XX_BOARD_CNXT_CARRAERA:
 715                 case CX231XX_BOARD_CNXT_RDE_250:
 716                 case CX231XX_BOARD_CNXT_SHELBY:
 717                 case CX231XX_BOARD_CNXT_RDU_250:
 718                 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
 719                         break;
 720                 case CX231XX_BOARD_CNXT_RDE_253S:
 721                 case CX231XX_BOARD_CNXT_RDU_253S:
 722                         errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
 723                         break;
 724                 case CX231XX_BOARD_HAUPPAUGE_EXETER:
 725                         errCode = cx231xx_set_power_mode(dev,
 726                                                 POLARIS_AVMODE_DIGITAL);
 727                         break;
 728                 default:
 729                         break;
 730                 }
 731         } else/* Set Analog Power mode */ {
 732         /* set AGC mode to Analog */
 733                 switch (dev->model) {
 734                 case CX231XX_BOARD_CNXT_CARRAERA:
 735                 case CX231XX_BOARD_CNXT_RDE_250:
 736                 case CX231XX_BOARD_CNXT_SHELBY:
 737                 case CX231XX_BOARD_CNXT_RDU_250:
 738                 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
 739                         break;
 740                 case CX231XX_BOARD_CNXT_RDE_253S:
 741                 case CX231XX_BOARD_CNXT_RDU_253S:
 742                 case CX231XX_BOARD_HAUPPAUGE_EXETER:
 743                 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
 744                 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
 745                         break;
 746                 default:
 747                         break;
 748                 }
 749         }
 750
 751         return 0;
 752 }
 753 EXPORT_SYMBOL_GPL(cx231xx_set_mode);
 754
 755 int cx231xx_ep5_bulkout(struct cx231xx *dev, u8 *firmware, u16 size)
 756 {
 757         int errCode = 0;
 758         int actlen, ret = -ENOMEM;
 759         u32 *buffer;
 760
 761 buffer = kzalloc(4096, GFP_KERNEL);
 762         if (buffer == NULL) {
 763                 cx231xx_info("out of mem\n");
 764                 return -ENOMEM;
 765         }
 766         memcpy(&buffer[0], firmware, 4096);
 767
 768         ret = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 5),
 769                                  buffer, 4096, &actlen, 2000);
 770
 771         if (ret)
 772                 cx231xx_info("bulk message failed: %d (%d/%d)", ret,
 773                                  size, actlen);
 774         else {
 775                 errCode = actlen != size ? -1 : 0;
 776         }
 777 kfree(buffer);
 778         return 0;
 779 }
 780
 781 /*****************************************************************
 782 *                URB Streaming functions                         *
 783 ******************************************************************/
 784
 785 /*
 786  * IRQ callback, called by URB callback
 787  */
 788 static void cx231xx_isoc_irq_callback(struct urb *urb)
 789 {
 790         struct cx231xx_dmaqueue *dma_q = urb->context;
 791         struct cx231xx_video_mode *vmode =
 792             container_of(dma_q, struct cx231xx_video_mode, vidq);
 793         struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
 794         int rc, i;
 795
 796         switch (urb->status) {
 797         case 0:         /* success */
 798         case -ETIMEDOUT:        /* NAK */
 799                 break;
 800         case -ECONNRESET:       /* kill */
 801         case -ENOENT:
 802         case -ESHUTDOWN:
 803                 return;
 804         default:                /* error */
 805                 cx231xx_isocdbg("urb completition error %d.\n", urb->status);
 806                 break;
 807         }
 808
 809         /* Copy data from URB */
 810         spin_lock(&dev->video_mode.slock);
 811         rc = dev->video_mode.isoc_ctl.isoc_copy(dev, urb);
 812         spin_unlock(&dev->video_mode.slock);
 813
 814         /* Reset urb buffers */
 815         for (i = 0; i < urb->number_of_packets; i++) {
 816                 urb->iso_frame_desc[i].status = 0;
 817                 urb->iso_frame_desc[i].actual_length = 0;
 818         }
 819         urb->status = 0;
 820
 821         urb->status = usb_submit_urb(urb, GFP_ATOMIC);
 822         if (urb->status) {
 823                 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
 824                                 urb->status);
 825         }
 826 }
 827 /*****************************************************************
 828 *                URB Streaming functions                         *
 829 ******************************************************************/
 830
 831 /*
 832  * IRQ callback, called by URB callback
 833  */
 834 static void cx231xx_bulk_irq_callback(struct urb *urb)
 835 {
 836         struct cx231xx_dmaqueue *dma_q = urb->context;
 837         struct cx231xx_video_mode *vmode =
 838             container_of(dma_q, struct cx231xx_video_mode, vidq);
 839         struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
 840         int rc;
 841
 842         switch (urb->status) {
 843         case 0:         /* success */
 844         case -ETIMEDOUT:        /* NAK */
 845                 break;
 846         case -ECONNRESET:       /* kill */
 847         case -ENOENT:
 848         case -ESHUTDOWN:
 849                 return;
 850         default:                /* error */
 851                 cx231xx_isocdbg("urb completition error %d.\n", urb->status);
 852                 break;
 853         }
 854
 855         /* Copy data from URB */
 856         spin_lock(&dev->video_mode.slock);
 857         rc = dev->video_mode.bulk_ctl.bulk_copy(dev, urb);
 858         spin_unlock(&dev->video_mode.slock);
 859
 860         /* Reset urb buffers */
 861         urb->status = 0;
 862
 863         urb->status = usb_submit_urb(urb, GFP_ATOMIC);
 864         if (urb->status) {
 865                 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
 866                                 urb->status);
 867         }
 868 }
 869 /*
 870  * Stop and Deallocate URBs
 871  */
 872 void cx231xx_uninit_isoc(struct cx231xx *dev)
 873 {
 874         struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
 875         struct urb *urb;
 876         int i;
 877
 878         cx231xx_isocdbg("cx231xx: called cx231xx_uninit_isoc\n");
 879
 880         dev->video_mode.isoc_ctl.nfields = -1;
 881         for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
 882                 urb = dev->video_mode.isoc_ctl.urb[i];
 883                 if (urb) {
 884                         if (!irqs_disabled())
 885                                 usb_kill_urb(urb);
 886                         else
 887                                 usb_unlink_urb(urb);
 888
 889                         if (dev->video_mode.isoc_ctl.transfer_buffer[i]) {
 890                                 usb_free_coherent(dev->udev,
 891                                                   urb->transfer_buffer_length,
 892                                                   dev->video_mode.isoc_ctl.
 893                                                   transfer_buffer[i],
 894                                                   urb->transfer_dma);
 895                         }
 896                         usb_free_urb(urb);
 897                         dev->video_mode.isoc_ctl.urb[i] = NULL;
 898                 }
 899                 dev->video_mode.isoc_ctl.transfer_buffer[i] = NULL;
 900         }
 901
 902         kfree(dev->video_mode.isoc_ctl.urb);
 903         kfree(dev->video_mode.isoc_ctl.transfer_buffer);
 904         kfree(dma_q->p_left_data);
 905
 906         dev->video_mode.isoc_ctl.urb = NULL;
 907         dev->video_mode.isoc_ctl.transfer_buffer = NULL;
 908         dev->video_mode.isoc_ctl.num_bufs = 0;
 909         dma_q->p_left_data = NULL;
 910
 911         if (dev->mode_tv == 0)
 912                 cx231xx_capture_start(dev, 0, Raw_Video);
 913         else
 914                 cx231xx_capture_start(dev, 0, TS1_serial_mode);
 915
 916
 917 }
 918 EXPORT_SYMBOL_GPL(cx231xx_uninit_isoc);
 919
 920 /*
 921  * Stop and Deallocate URBs
 922  */
 923 void cx231xx_uninit_bulk(struct cx231xx *dev)
 924 {
 925         struct urb *urb;
 926         int i;
 927
 928         cx231xx_isocdbg("cx231xx: called cx231xx_uninit_bulk\n");
 929
 930         dev->video_mode.bulk_ctl.nfields = -1;
 931         for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
 932                 urb = dev->video_mode.bulk_ctl.urb[i];
 933                 if (urb) {
 934                         if (!irqs_disabled())
 935                                 usb_kill_urb(urb);
 936                         else
 937                                 usb_unlink_urb(urb);
 938
 939                         if (dev->video_mode.bulk_ctl.transfer_buffer[i]) {
 940                                 usb_free_coherent(dev->udev,
 941                                                 urb->transfer_buffer_length,
 942                                                 dev->video_mode.isoc_ctl.
 943                                                 transfer_buffer[i],
 944                                                 urb->transfer_dma);
 945                         }
 946                         usb_free_urb(urb);
 947                         dev->video_mode.bulk_ctl.urb[i] = NULL;
 948                 }
 949                 dev->video_mode.bulk_ctl.transfer_buffer[i] = NULL;
 950         }
 951
 952         kfree(dev->video_mode.bulk_ctl.urb);
 953         kfree(dev->video_mode.bulk_ctl.transfer_buffer);
 954
 955         dev->video_mode.bulk_ctl.urb = NULL;
 956         dev->video_mode.bulk_ctl.transfer_buffer = NULL;
 957         dev->video_mode.bulk_ctl.num_bufs = 0;
 958
 959         if (dev->mode_tv == 0)
 960                 cx231xx_capture_start(dev, 0, Raw_Video);
 961         else
 962                 cx231xx_capture_start(dev, 0, TS1_serial_mode);
 963
 964
 965 }
 966 EXPORT_SYMBOL_GPL(cx231xx_uninit_bulk);
 967
 968 /*
 969  * Allocate URBs and start IRQ
 970  */
 971 int cx231xx_init_isoc(struct cx231xx *dev, int max_packets,
 972                       int num_bufs, int max_pkt_size,
 973                       int (*isoc_copy) (struct cx231xx *dev, struct urb *urb))
 974 {
 975         struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
 976         int i;
 977         int sb_size, pipe;
 978         struct urb *urb;
 979         int j, k;
 980         int rc;
 981
 982         /* De-allocates all pending stuff */
 983         cx231xx_uninit_isoc(dev);
 984
 985         dma_q->p_left_data = kzalloc(4096, GFP_KERNEL);
 986         if (dma_q->p_left_data == NULL) {
 987                 cx231xx_info("out of mem\n");
 988                 return -ENOMEM;
 989         }
 990
 991
 992
 993         dev->video_mode.isoc_ctl.isoc_copy = isoc_copy;
 994         dev->video_mode.isoc_ctl.num_bufs = num_bufs;
 995         dma_q->pos = 0;
 996         dma_q->is_partial_line = 0;
 997         dma_q->last_sav = 0;
 998         dma_q->current_field = -1;
 999         dma_q->field1_done = 0;
1000         dma_q->lines_per_field = dev->height / 2;
1001         dma_q->bytes_left_in_line = dev->width << 1;
1002         dma_q->lines_completed = 0;
1003         dma_q->mpeg_buffer_done = 0;
1004         dma_q->left_data_count = 0;
1005         dma_q->mpeg_buffer_completed = 0;
1006         dma_q->add_ps_package_head = CX231XX_NEED_ADD_PS_PACKAGE_HEAD;
1007         dma_q->ps_head[0] = 0x00;
1008         dma_q->ps_head[1] = 0x00;
1009         dma_q->ps_head[2] = 0x01;
1010         dma_q->ps_head[3] = 0xBA;
1011         for (i = 0; i < 8; i++)
1012                 dma_q->partial_buf[i] = 0;
1013
1014         dev->video_mode.isoc_ctl.urb =
1015             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1016         if (!dev->video_mode.isoc_ctl.urb) {
1017                 cx231xx_errdev("cannot alloc memory for usb buffers\n");
1018                 return -ENOMEM;
1019         }
1020
1021         dev->video_mode.isoc_ctl.transfer_buffer =
1022             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1023         if (!dev->video_mode.isoc_ctl.transfer_buffer) {
1024                 cx231xx_errdev("cannot allocate memory for usbtransfer\n");
1025                 kfree(dev->video_mode.isoc_ctl.urb);
1026                 return -ENOMEM;
1027         }
1028
1029         dev->video_mode.isoc_ctl.max_pkt_size = max_pkt_size;
1030         dev->video_mode.isoc_ctl.buf = NULL;
1031
1032         sb_size = max_packets * dev->video_mode.isoc_ctl.max_pkt_size;
1033
1034         if (dev->mode_tv == 1)
1035                 dev->video_mode.end_point_addr = 0x81;
1036         else
1037                 dev->video_mode.end_point_addr = 0x84;
1038
1039
1040         /* allocate urbs and transfer buffers */
1041         for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1042                 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
1043                 if (!urb) {
1044                         cx231xx_err("cannot alloc isoc_ctl.urb %i\n", i);
1045                         cx231xx_uninit_isoc(dev);
1046                         return -ENOMEM;
1047                 }
1048                 dev->video_mode.isoc_ctl.urb[i] = urb;
1049
1050                 dev->video_mode.isoc_ctl.transfer_buffer[i] =
1051                     usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1052                                        &urb->transfer_dma);
1053                 if (!dev->video_mode.isoc_ctl.transfer_buffer[i]) {
1054                         cx231xx_err("unable to allocate %i bytes for transfer"
1055                                     " buffer %i%s\n",
1056                                     sb_size, i,
1057                                     in_interrupt() ? " while in int" : "");
1058                         cx231xx_uninit_isoc(dev);
1059                         return -ENOMEM;
1060                 }
1061                 memset(dev->video_mode.isoc_ctl.transfer_buffer[i], 0, sb_size);
1062
1063                 pipe =
1064                     usb_rcvisocpipe(dev->udev, dev->video_mode.end_point_addr);
1065
1066                 usb_fill_int_urb(urb, dev->udev, pipe,
1067                                  dev->video_mode.isoc_ctl.transfer_buffer[i],
1068                                  sb_size, cx231xx_isoc_irq_callback, dma_q, 1);
1069
1070                 urb->number_of_packets = max_packets;
1071                 urb->transfer_flags = URB_ISO_ASAP;
1072
1073                 k = 0;
1074                 for (j = 0; j < max_packets; j++) {
1075                         urb->iso_frame_desc[j].offset = k;
1076                         urb->iso_frame_desc[j].length =
1077                             dev->video_mode.isoc_ctl.max_pkt_size;
1078                         k += dev->video_mode.isoc_ctl.max_pkt_size;
1079                 }
1080         }
1081
1082         init_waitqueue_head(&dma_q->wq);
1083
1084         /* submit urbs and enables IRQ */
1085         for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1086                 rc = usb_submit_urb(dev->video_mode.isoc_ctl.urb[i],
1087                                     GFP_ATOMIC);
1088                 if (rc) {
1089                         cx231xx_err("submit of urb %i failed (error=%i)\n", i,
1090                                     rc);
1091                         cx231xx_uninit_isoc(dev);
1092                         return rc;
1093                 }
1094         }
1095
1096         if (dev->mode_tv == 0)
1097                 cx231xx_capture_start(dev, 1, Raw_Video);
1098         else
1099                 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1100
1101         return 0;
1102 }
1103 EXPORT_SYMBOL_GPL(cx231xx_init_isoc);
1104
1105 /*
1106  * Allocate URBs and start IRQ
1107  */
1108 int cx231xx_init_bulk(struct cx231xx *dev, int max_packets,
1109                       int num_bufs, int max_pkt_size,
1110                       int (*bulk_copy) (struct cx231xx *dev, struct urb *urb))
1111 {
1112         struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
1113         int i;
1114         int sb_size, pipe;
1115         struct urb *urb;
1116         int rc;
1117
1118         dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
1119
1120         cx231xx_coredbg("Setting Video mux to %d\n", dev->video_input);
1121
1122         video_mux(dev, dev->video_input);
1123
1124         /* De-allocates all pending stuff */
1125         cx231xx_uninit_bulk(dev);
1126
1127         dev->video_mode.bulk_ctl.bulk_copy = bulk_copy;
1128         dev->video_mode.bulk_ctl.num_bufs = num_bufs;
1129         dma_q->pos = 0;
1130         dma_q->is_partial_line = 0;
1131         dma_q->last_sav = 0;
1132         dma_q->current_field = -1;
1133         dma_q->field1_done = 0;
1134         dma_q->lines_per_field = dev->height / 2;
1135         dma_q->bytes_left_in_line = dev->width << 1;
1136         dma_q->lines_completed = 0;
1137         dma_q->mpeg_buffer_done = 0;
1138         dma_q->left_data_count = 0;
1139         dma_q->mpeg_buffer_completed = 0;
1140         dma_q->ps_head[0] = 0x00;
1141         dma_q->ps_head[1] = 0x00;
1142         dma_q->ps_head[2] = 0x01;
1143         dma_q->ps_head[3] = 0xBA;
1144         for (i = 0; i < 8; i++)
1145                 dma_q->partial_buf[i] = 0;
1146
1147         dev->video_mode.bulk_ctl.urb =
1148             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1149         if (!dev->video_mode.bulk_ctl.urb) {
1150                 cx231xx_errdev("cannot alloc memory for usb buffers\n");
1151                 return -ENOMEM;
1152         }
1153
1154         dev->video_mode.bulk_ctl.transfer_buffer =
1155             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1156         if (!dev->video_mode.bulk_ctl.transfer_buffer) {
1157                 cx231xx_errdev("cannot allocate memory for usbtransfer\n");
1158                 kfree(dev->video_mode.bulk_ctl.urb);
1159                 return -ENOMEM;
1160         }
1161
1162         dev->video_mode.bulk_ctl.max_pkt_size = max_pkt_size;
1163         dev->video_mode.bulk_ctl.buf = NULL;
1164
1165         sb_size = max_packets * dev->video_mode.bulk_ctl.max_pkt_size;
1166
1167         if (dev->mode_tv == 1)
1168                 dev->video_mode.end_point_addr = 0x81;
1169         else
1170                 dev->video_mode.end_point_addr = 0x84;
1171
1172
1173         /* allocate urbs and transfer buffers */
1174         for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1175                 urb = usb_alloc_urb(0, GFP_KERNEL);
1176                 if (!urb) {
1177                         cx231xx_err("cannot alloc bulk_ctl.urb %i\n", i);
1178                         cx231xx_uninit_bulk(dev);
1179                         return -ENOMEM;
1180                 }
1181                 dev->video_mode.bulk_ctl.urb[i] = urb;
1182                 urb->transfer_flags = 0;
1183
1184                 dev->video_mode.bulk_ctl.transfer_buffer[i] =
1185                     usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1186                                      &urb->transfer_dma);
1187                 if (!dev->video_mode.bulk_ctl.transfer_buffer[i]) {
1188                         cx231xx_err("unable to allocate %i bytes for transfer"
1189                                     " buffer %i%s\n",
1190                                     sb_size, i,
1191                                     in_interrupt() ? " while in int" : "");
1192                         cx231xx_uninit_bulk(dev);
1193                         return -ENOMEM;
1194                 }
1195                 memset(dev->video_mode.bulk_ctl.transfer_buffer[i], 0, sb_size);
1196
1197                 pipe = usb_rcvbulkpipe(dev->udev,
1198                                  dev->video_mode.end_point_addr);
1199                 usb_fill_bulk_urb(urb, dev->udev, pipe,
1200                                   dev->video_mode.bulk_ctl.transfer_buffer[i],
1201                                   sb_size, cx231xx_bulk_irq_callback, dma_q);
1202         }
1203
1204         init_waitqueue_head(&dma_q->wq);
1205
1206         /* submit urbs and enables IRQ */
1207         for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1208                 rc = usb_submit_urb(dev->video_mode.bulk_ctl.urb[i],
1209                                     GFP_ATOMIC);
1210                 if (rc) {
1211                         cx231xx_err("submit of urb %i failed (error=%i)\n", i,
1212                                     rc);
1213                         cx231xx_uninit_bulk(dev);
1214                         return rc;
1215                 }
1216         }
1217
1218         if (dev->mode_tv == 0)
1219                 cx231xx_capture_start(dev, 1, Raw_Video);
1220         else
1221                 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1222
1223         return 0;
1224 }
1225 EXPORT_SYMBOL_GPL(cx231xx_init_bulk);
1226 void cx231xx_stop_TS1(struct cx231xx *dev)
1227 {
1228         int status = 0;
1229         u8 val[4] = { 0, 0, 0, 0 };
1230
1231                         val[0] = 0x00;
1232                         val[1] = 0x03;
1233                         val[2] = 0x00;
1234                         val[3] = 0x00;
1235                         status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1236                                  TS_MODE_REG, val, 4);
1237
1238                         val[0] = 0x00;
1239                         val[1] = 0x70;
1240                         val[2] = 0x04;
1241                         val[3] = 0x00;
1242                         status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1243                                  TS1_CFG_REG, val, 4);
1244 }
1245 /* EXPORT_SYMBOL_GPL(cx231xx_stop_TS1); */
1246 void cx231xx_start_TS1(struct cx231xx *dev)
1247 {
1248         int status = 0;
1249         u8 val[4] = { 0, 0, 0, 0 };
1250
1251                         val[0] = 0x03;
1252                         val[1] = 0x03;
1253                         val[2] = 0x00;
1254                         val[3] = 0x00;
1255                         status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1256                                  TS_MODE_REG, val, 4);
1257
1258                         val[0] = 0x04;
1259                         val[1] = 0xA3;
1260                         val[2] = 0x3B;
1261                         val[3] = 0x00;
1262                         status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1263                                  TS1_CFG_REG, val, 4);
1264 }
1265 /* EXPORT_SYMBOL_GPL(cx231xx_start_TS1); */
1266 /*****************************************************************
1267 *             Device Init/UnInit functions                       *
1268 ******************************************************************/
1269 int cx231xx_dev_init(struct cx231xx *dev)
1270 {
1271         int errCode = 0;
1272
1273         /* Initialize I2C bus */
1274
1275         /* External Master 1 Bus */
1276         dev->i2c_bus[0].nr = 0;
1277         dev->i2c_bus[0].dev = dev;
1278         dev->i2c_bus[0].i2c_period = I2C_SPEED_100K;    /* 100 KHz */
1279         dev->i2c_bus[0].i2c_nostop = 0;
1280         dev->i2c_bus[0].i2c_reserve = 0;
1281
1282         /* External Master 2 Bus */
1283         dev->i2c_bus[1].nr = 1;
1284         dev->i2c_bus[1].dev = dev;
1285         dev->i2c_bus[1].i2c_period = I2C_SPEED_100K;    /* 100 KHz */
1286         dev->i2c_bus[1].i2c_nostop = 0;
1287         dev->i2c_bus[1].i2c_reserve = 0;
1288
1289         /* Internal Master 3 Bus */
1290         dev->i2c_bus[2].nr = 2;
1291         dev->i2c_bus[2].dev = dev;
1292         dev->i2c_bus[2].i2c_period = I2C_SPEED_100K;    /* 100kHz */
1293         dev->i2c_bus[2].i2c_nostop = 0;
1294         dev->i2c_bus[2].i2c_reserve = 0;
1295
1296         /* register I2C buses */
1297         cx231xx_i2c_register(&dev->i2c_bus[0]);
1298         cx231xx_i2c_register(&dev->i2c_bus[1]);
1299         cx231xx_i2c_register(&dev->i2c_bus[2]);
1300
1301         /* init hardware */
1302         /* Note : with out calling set power mode function,
1303         afe can not be set up correctly */
1304         if (dev->model == CX231XX_BOARD_CNXT_VIDEO_GRABBER ||
1305             dev->model == CX231XX_BOARD_HAUPPAUGE_USBLIVE2) {
1306                 errCode = cx231xx_set_power_mode(dev,
1307                                  POLARIS_AVMODE_ENXTERNAL_AV);
1308                 if (errCode < 0) {
1309                         cx231xx_errdev
1310                         ("%s: Failed to set Power - errCode [%d]!\n",
1311                         __func__, errCode);
1312                         return errCode;
1313                 }
1314         } else {
1315                 errCode = cx231xx_set_power_mode(dev,
1316                                  POLARIS_AVMODE_ANALOGT_TV);
1317                 if (errCode < 0) {
1318                         cx231xx_errdev
1319                         ("%s: Failed to set Power - errCode [%d]!\n",
1320                         __func__, errCode);
1321                         return errCode;
1322                 }
1323         }
1324
1325         /* reset the Tuner */
1326         if ((dev->model == CX231XX_BOARD_CNXT_CARRAERA) ||
1327                 (dev->model == CX231XX_BOARD_CNXT_RDE_250) ||
1328                 (dev->model == CX231XX_BOARD_CNXT_SHELBY) ||
1329                 (dev->model == CX231XX_BOARD_CNXT_RDU_250))
1330                         cx231xx_gpio_set(dev, dev->board.tuner_gpio);
1331
1332         /* initialize Colibri block */
1333         errCode = cx231xx_afe_init_super_block(dev, 0x23c);
1334         if (errCode < 0) {
1335                 cx231xx_errdev
1336                     ("%s: cx231xx_afe init super block - errCode [%d]!\n",
1337                      __func__, errCode);
1338                 return errCode;
1339         }
1340         errCode = cx231xx_afe_init_channels(dev);
1341         if (errCode < 0) {
1342                 cx231xx_errdev
1343                     ("%s: cx231xx_afe init channels - errCode [%d]!\n",
1344                      __func__, errCode);
1345                 return errCode;
1346         }
1347
1348         /* Set DIF in By pass mode */
1349         errCode = cx231xx_dif_set_standard(dev, DIF_USE_BASEBAND);
1350         if (errCode < 0) {
1351                 cx231xx_errdev
1352                     ("%s: cx231xx_dif set to By pass mode - errCode [%d]!\n",
1353                      __func__, errCode);
1354                 return errCode;
1355         }
1356
1357         /* I2S block related functions */
1358         errCode = cx231xx_i2s_blk_initialize(dev);
1359         if (errCode < 0) {
1360                 cx231xx_errdev
1361                     ("%s: cx231xx_i2s block initialize - errCode [%d]!\n",
1362                      __func__, errCode);
1363                 return errCode;
1364         }
1365
1366         /* init control pins */
1367         errCode = cx231xx_init_ctrl_pin_status(dev);
1368         if (errCode < 0) {
1369                 cx231xx_errdev("%s: cx231xx_init ctrl pins - errCode [%d]!\n",
1370                                __func__, errCode);
1371                 return errCode;
1372         }
1373
1374         /* set AGC mode to Analog */
1375         switch (dev->model) {
1376         case CX231XX_BOARD_CNXT_CARRAERA:
1377         case CX231XX_BOARD_CNXT_RDE_250:
1378         case CX231XX_BOARD_CNXT_SHELBY:
1379         case CX231XX_BOARD_CNXT_RDU_250:
1380         errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
1381                 break;
1382         case CX231XX_BOARD_CNXT_RDE_253S:
1383         case CX231XX_BOARD_CNXT_RDU_253S:
1384         case CX231XX_BOARD_HAUPPAUGE_EXETER:
1385         case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
1386         errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
1387                 break;
1388         default:
1389                 break;
1390         }
1391         if (errCode < 0) {
1392                 cx231xx_errdev
1393                     ("%s: cx231xx_AGC mode to Analog - errCode [%d]!\n",
1394                      __func__, errCode);
1395                 return errCode;
1396         }
1397
1398         /* set all alternate settings to zero initially */
1399         cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
1400         cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1401         cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
1402         if (dev->board.has_dvb)
1403                 cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
1404
1405         /* set the I2C master port to 3 on channel 1 */
1406         errCode = cx231xx_enable_i2c_port_3(dev, true);
1407
1408         return errCode;
1409 }
1410 EXPORT_SYMBOL_GPL(cx231xx_dev_init);
1411
1412 void cx231xx_dev_uninit(struct cx231xx *dev)
1413 {
1414         /* Un Initialize I2C bus */
1415         cx231xx_i2c_unregister(&dev->i2c_bus[2]);
1416         cx231xx_i2c_unregister(&dev->i2c_bus[1]);
1417         cx231xx_i2c_unregister(&dev->i2c_bus[0]);
1418 }
1419 EXPORT_SYMBOL_GPL(cx231xx_dev_uninit);
1420
1421 /*****************************************************************
1422 *              G P I O related functions                         *
1423 ******************************************************************/
1424 int cx231xx_send_gpio_cmd(struct cx231xx *dev, u32 gpio_bit, u8 *gpio_val,
1425                           u8 len, u8 request, u8 direction)
1426 {
1427         int status = 0;
1428         struct VENDOR_REQUEST_IN ven_req;
1429
1430         /* Set wValue */
1431         ven_req.wValue = (u16) (gpio_bit >> 16 & 0xffff);
1432
1433         /* set request */
1434         if (!request) {
1435                 if (direction)
1436                         ven_req.bRequest = VRT_GET_GPIO;        /* 0x8 gpio */
1437                 else
1438                         ven_req.bRequest = VRT_SET_GPIO;        /* 0x9 gpio */
1439         } else {
1440                 if (direction)
1441                         ven_req.bRequest = VRT_GET_GPIE;        /* 0xa gpie */
1442                 else
1443                         ven_req.bRequest = VRT_SET_GPIE;        /* 0xb gpie */
1444         }
1445
1446         /* set index value */
1447         ven_req.wIndex = (u16) (gpio_bit & 0xffff);
1448
1449         /* set wLength value */
1450         ven_req.wLength = len;
1451
1452         /* set bData value */
1453         ven_req.bData = 0;
1454
1455         /* set the buffer for read / write */
1456         ven_req.pBuff = gpio_val;
1457
1458         /* set the direction */
1459         if (direction) {
1460                 ven_req.direction = USB_DIR_IN;
1461                 memset(ven_req.pBuff, 0x00, ven_req.wLength);
1462         } else
1463                 ven_req.direction = USB_DIR_OUT;
1464
1465
1466         /* call common vendor command request */
1467         status = cx231xx_send_vendor_cmd(dev, &ven_req);
1468         if (status < 0) {
1469                 cx231xx_info
1470                     ("UsbInterface::sendCommand, failed with status -%d\n",
1471                      status);
1472         }
1473
1474         return status;
1475 }
1476 EXPORT_SYMBOL_GPL(cx231xx_send_gpio_cmd);
1477
1478 /*****************************************************************
1479  *    C O N T R O L - Register R E A D / W R I T E functions     *
1480  *****************************************************************/
1481 int cx231xx_mode_register(struct cx231xx *dev, u16 address, u32 mode)
1482 {
1483         u8 value[4] = { 0x0, 0x0, 0x0, 0x0 };
1484         u32 tmp = 0;
1485         int status = 0;
1486
1487         status =
1488             cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, address, value, 4);
1489         if (status < 0)
1490                 return status;
1491
1492         tmp = *((u32 *) value);
1493         tmp |= mode;
1494
1495         value[0] = (u8) tmp;
1496         value[1] = (u8) (tmp >> 8);
1497         value[2] = (u8) (tmp >> 16);
1498         value[3] = (u8) (tmp >> 24);
1499
1500         status =
1501             cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, address, value, 4);
1502
1503         return status;
1504 }
1505
1506 /*****************************************************************
1507  *            I 2 C Internal C O N T R O L   functions           *
1508  *****************************************************************/
1509 int cx231xx_read_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1510                           u8 saddr_len, u32 *data, u8 data_len, int master)
1511 {
1512         int status = 0;
1513         struct cx231xx_i2c_xfer_data req_data;
1514         u8 value[64] = "0";
1515
1516         if (saddr_len == 0)
1517                 saddr = 0;
1518         else if (saddr_len == 0)
1519                 saddr &= 0xff;
1520
1521         /* prepare xfer_data struct */
1522         req_data.dev_addr = dev_addr >> 1;
1523         req_data.direction = I2C_M_RD;
1524         req_data.saddr_len = saddr_len;
1525         req_data.saddr_dat = saddr;
1526         req_data.buf_size = data_len;
1527         req_data.p_buffer = (u8 *) value;
1528
1529         /* usb send command */
1530         if (master == 0)
1531                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1532                                          &req_data);
1533         else if (master == 1)
1534                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1535                                          &req_data);
1536         else if (master == 2)
1537                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1538                                          &req_data);
1539
1540         if (status >= 0) {
1541                 /* Copy the data read back to main buffer */
1542                 if (data_len == 1)
1543                         *data = value[0];
1544                 else if (data_len == 4)
1545                         *data =
1546                             value[0] | value[1] << 8 | value[2] << 16 | value[3]
1547                             << 24;
1548                 else if (data_len > 4)
1549                         *data = value[saddr];
1550         }
1551
1552         return status;
1553 }
1554
1555 int cx231xx_write_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1556                            u8 saddr_len, u32 data, u8 data_len, int master)
1557 {
1558         int status = 0;
1559         u8 value[4] = { 0, 0, 0, 0 };
1560         struct cx231xx_i2c_xfer_data req_data;
1561
1562         value[0] = (u8) data;
1563         value[1] = (u8) (data >> 8);
1564         value[2] = (u8) (data >> 16);
1565         value[3] = (u8) (data >> 24);
1566
1567         if (saddr_len == 0)
1568                 saddr = 0;
1569         else if (saddr_len == 0)
1570                 saddr &= 0xff;
1571
1572         /* prepare xfer_data struct */
1573         req_data.dev_addr = dev_addr >> 1;
1574         req_data.direction = 0;
1575         req_data.saddr_len = saddr_len;
1576         req_data.saddr_dat = saddr;
1577         req_data.buf_size = data_len;
1578         req_data.p_buffer = value;
1579
1580         /* usb send command */
1581         if (master == 0)
1582                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1583                                  &req_data);
1584         else if (master == 1)
1585                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1586                                  &req_data);
1587         else if (master == 2)
1588                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1589                                  &req_data);
1590
1591         return status;
1592 }
1593
1594 int cx231xx_read_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1595                           u8 saddr_len, u32 *data, u8 data_len)
1596 {
1597         int status = 0;
1598         struct cx231xx_i2c_xfer_data req_data;
1599         u8 value[4] = { 0, 0, 0, 0 };
1600
1601         if (saddr_len == 0)
1602                 saddr = 0;
1603         else if (saddr_len == 0)
1604                 saddr &= 0xff;
1605
1606         /* prepare xfer_data struct */
1607         req_data.dev_addr = dev_addr >> 1;
1608         req_data.direction = I2C_M_RD;
1609         req_data.saddr_len = saddr_len;
1610         req_data.saddr_dat = saddr;
1611         req_data.buf_size = data_len;
1612         req_data.p_buffer = (u8 *) value;
1613
1614         /* usb send command */
1615         status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1616
1617         if (status >= 0) {
1618                 /* Copy the data read back to main buffer */
1619                 if (data_len == 1)
1620                         *data = value[0];
1621                 else
1622                         *data =
1623                             value[0] | value[1] << 8 | value[2] << 16 | value[3]
1624                             << 24;
1625         }
1626
1627         return status;
1628 }
1629
1630 int cx231xx_write_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1631                            u8 saddr_len, u32 data, u8 data_len)
1632 {
1633         int status = 0;
1634         u8 value[4] = { 0, 0, 0, 0 };
1635         struct cx231xx_i2c_xfer_data req_data;
1636
1637         value[0] = (u8) data;
1638         value[1] = (u8) (data >> 8);
1639         value[2] = (u8) (data >> 16);
1640         value[3] = (u8) (data >> 24);
1641
1642         if (saddr_len == 0)
1643                 saddr = 0;
1644         else if (saddr_len == 0)
1645                 saddr &= 0xff;
1646
1647         /* prepare xfer_data struct */
1648         req_data.dev_addr = dev_addr >> 1;
1649         req_data.direction = 0;
1650         req_data.saddr_len = saddr_len;
1651         req_data.saddr_dat = saddr;
1652         req_data.buf_size = data_len;
1653         req_data.p_buffer = value;
1654
1655         /* usb send command */
1656         status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1657
1658         return status;
1659 }
1660
1661 int cx231xx_reg_mask_write(struct cx231xx *dev, u8 dev_addr, u8 size,
1662                            u16 register_address, u8 bit_start, u8 bit_end,
1663                            u32 value)
1664 {
1665         int status = 0;
1666         u32 tmp;
1667         u32 mask = 0;
1668         int i;
1669
1670         if (bit_start > (size - 1) || bit_end > (size - 1))
1671                 return -1;
1672
1673         if (size == 8) {
1674                 status =
1675                     cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1676                                           &tmp, 1);
1677         } else {
1678                 status =
1679                     cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1680                                           &tmp, 4);
1681         }
1682
1683         if (status < 0)
1684                 return status;
1685
1686         mask = 1 << bit_end;
1687         for (i = bit_end; i > bit_start && i > 0; i--)
1688                 mask = mask + (1 << (i - 1));
1689
1690         value <<= bit_start;
1691
1692         if (size == 8) {
1693                 tmp &= ~mask;
1694                 tmp |= value;
1695                 tmp &= 0xff;
1696                 status =
1697                     cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1698                                            tmp, 1);
1699         } else {
1700                 tmp &= ~mask;
1701                 tmp |= value;
1702                 status =
1703                     cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1704                                            tmp, 4);
1705         }
1706
1707         return status;
1708 }
1709
1710 int cx231xx_read_modify_write_i2c_dword(struct cx231xx *dev, u8 dev_addr,
1711                                         u16 saddr, u32 mask, u32 value)
1712 {
1713         u32 temp;
1714         int status = 0;
1715
1716         status = cx231xx_read_i2c_data(dev, dev_addr, saddr, 2, &temp, 4);
1717
1718         if (status < 0)
1719                 return status;
1720
1721         temp &= ~mask;
1722         temp |= value;
1723
1724         status = cx231xx_write_i2c_data(dev, dev_addr, saddr, 2, temp, 4);
1725
1726         return status;
1727 }
1728
1729 u32 cx231xx_set_field(u32 field_mask, u32 data)
1730 {
1731         u32 temp;
1732
1733         for (temp = field_mask; (temp & 1) == 0; temp >>= 1)
1734                 data <<= 1;
1735
1736         return data;
1737 }