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         if (dev->state & DEV_DISCONNECTED)
 170                 return -ENODEV;
 171
 172         /* Get the I2C period, nostop and reserve parameters */
 173         _i2c_period = i2c_bus->i2c_period;
 174         _i2c_nostop = i2c_bus->i2c_nostop;
 175         _i2c_reserve = i2c_bus->i2c_reserve;
 176
 177         saddr_len = req_data->saddr_len;
 178
 179         /* Set wValue */
 180         if (saddr_len == 1)     /* need check saddr_len == 0  */
 181                 ven_req.wValue =
 182                     req_data->
 183                     dev_addr << 9 | _i2c_period << 4 | saddr_len << 2 |
 184                     _i2c_nostop << 1 | I2C_SYNC | _i2c_reserve << 6;
 185         else
 186                 ven_req.wValue =
 187                     req_data->
 188                     dev_addr << 9 | _i2c_period << 4 | saddr_len << 2 |
 189                     _i2c_nostop << 1 | I2C_SYNC | _i2c_reserve << 6;
 190
 191         /* set channel number */
 192         if (req_data->direction & I2C_M_RD) {
 193                 /* channel number, for read,spec required channel_num +4 */
 194                 ven_req.bRequest = i2c_bus->nr + 4;
 195         } else
 196                 ven_req.bRequest = i2c_bus->nr; /* channel number,  */
 197
 198         /* set index value */
 199         switch (saddr_len) {
 200         case 0:
 201                 ven_req.wIndex = 0;     /* need check */
 202                 break;
 203         case 1:
 204                 ven_req.wIndex = (req_data->saddr_dat & 0xff);
 205                 break;
 206         case 2:
 207                 ven_req.wIndex = req_data->saddr_dat;
 208                 break;
 209         }
 210
 211         /* set wLength value */
 212         ven_req.wLength = req_data->buf_size;
 213
 214         /* set bData value */
 215         ven_req.bData = 0;
 216
 217         /* set the direction */
 218         if (req_data->direction) {
 219                 ven_req.direction = USB_DIR_IN;
 220                 memset(req_data->p_buffer, 0x00, ven_req.wLength);
 221         } else
 222                 ven_req.direction = USB_DIR_OUT;
 223
 224         /* set the buffer for read / write */
 225         ven_req.pBuff = req_data->p_buffer;
 226
 227
 228         /* call common vendor command request */
 229         status = cx231xx_send_vendor_cmd(dev, &ven_req);
 230         if (status < 0) {
 231                 cx231xx_info
 232                     ("UsbInterface::sendCommand, failed with status -%d\n",
 233                      status);
 234         }
 235
 236         return status;
 237 }
 238 EXPORT_SYMBOL_GPL(cx231xx_send_usb_command);
 239
 240 /*
 241  * Sends/Receives URB control messages, assuring to use a kalloced buffer
 242  * for all operations (dev->urb_buf), to avoid using stacked buffers, as
 243  * they aren't safe for usage with USB, due to DMA restrictions.
 244  * Also implements the debug code for control URB's.
 245  */
 246 static int __usb_control_msg(struct cx231xx *dev, unsigned int pipe,
 247         __u8 request, __u8 requesttype, __u16 value, __u16 index,
 248         void *data, __u16 size, int timeout)
 249 {
 250         int rc, i;
 251
 252         if (reg_debug) {
 253                 printk(KERN_DEBUG "%s: (pipe 0x%08x): "
 254                                 "%s:  %02x %02x %02x %02x %02x %02x %02x %02x ",
 255                                 dev->name,
 256                                 pipe,
 257                                 (requesttype & USB_DIR_IN) ? "IN" : "OUT",
 258                                 requesttype,
 259                                 request,
 260                                 value & 0xff, value >> 8,
 261                                 index & 0xff, index >> 8,
 262                                 size & 0xff, size >> 8);
 263                 if (!(requesttype & USB_DIR_IN)) {
 264                         printk(KERN_CONT ">>>");
 265                         for (i = 0; i < size; i++)
 266                                 printk(KERN_CONT " %02x",
 267                                        ((unsigned char *)data)[i]);
 268                 }
 269         }
 270
 271         /* Do the real call to usb_control_msg */
 272         mutex_lock(&dev->ctrl_urb_lock);
 273         if (!(requesttype & USB_DIR_IN) && size)
 274                 memcpy(dev->urb_buf, data, size);
 275         rc = usb_control_msg(dev->udev, pipe, request, requesttype, value,
 276                              index, dev->urb_buf, size, timeout);
 277         if ((requesttype & USB_DIR_IN) && size)
 278                 memcpy(data, dev->urb_buf, size);
 279         mutex_unlock(&dev->ctrl_urb_lock);
 280
 281         if (reg_debug) {
 282                 if (unlikely(rc < 0)) {
 283                         printk(KERN_CONT "FAILED!\n");
 284                         return rc;
 285                 }
 286
 287                 if ((requesttype & USB_DIR_IN)) {
 288                         printk(KERN_CONT "<<<");
 289                         for (i = 0; i < size; i++)
 290                                 printk(KERN_CONT " %02x",
 291                                        ((unsigned char *)data)[i]);
 292                 }
 293                 printk(KERN_CONT "\n");
 294         }
 295
 296         return rc;
 297 }
 298
 299
 300 /*
 301  * cx231xx_read_ctrl_reg()
 302  * reads data from the usb device specifying bRequest and wValue
 303  */
 304 int cx231xx_read_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg,
 305                           char *buf, int len)
 306 {
 307         u8 val = 0;
 308         int ret;
 309         int pipe = usb_rcvctrlpipe(dev->udev, 0);
 310
 311         if (dev->state & DEV_DISCONNECTED)
 312                 return -ENODEV;
 313
 314         if (len > URB_MAX_CTRL_SIZE)
 315                 return -EINVAL;
 316
 317         switch (len) {
 318         case 1:
 319                 val = ENABLE_ONE_BYTE;
 320                 break;
 321         case 2:
 322                 val = ENABLE_TWE_BYTE;
 323                 break;
 324         case 3:
 325                 val = ENABLE_THREE_BYTE;
 326                 break;
 327         case 4:
 328                 val = ENABLE_FOUR_BYTE;
 329                 break;
 330         default:
 331                 val = 0xFF;     /* invalid option */
 332         }
 333
 334         if (val == 0xFF)
 335                 return -EINVAL;
 336
 337         ret = __usb_control_msg(dev, pipe, req,
 338                               USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 339                               val, reg, buf, len, HZ);
 340         return ret;
 341 }
 342
 343 int cx231xx_send_vendor_cmd(struct cx231xx *dev,
 344                                 struct VENDOR_REQUEST_IN *ven_req)
 345 {
 346         int ret;
 347         int pipe = 0;
 348         int unsend_size = 0;
 349         u8 *pdata;
 350
 351         if (dev->state & DEV_DISCONNECTED)
 352                 return -ENODEV;
 353
 354         if ((ven_req->wLength > URB_MAX_CTRL_SIZE))
 355                 return -EINVAL;
 356
 357         if (ven_req->direction)
 358                 pipe = usb_rcvctrlpipe(dev->udev, 0);
 359         else
 360                 pipe = usb_sndctrlpipe(dev->udev, 0);
 361
 362         /*
 363          * If the cx23102 read more than 4 bytes with i2c bus,
 364          * need chop to 4 byte per request
 365          */
 366         if ((ven_req->wLength > 4) && ((ven_req->bRequest == 0x4) ||
 367                                         (ven_req->bRequest == 0x5) ||
 368                                         (ven_req->bRequest == 0x6))) {
 369                 unsend_size = 0;
 370                 pdata = ven_req->pBuff;
 371
 372
 373                 unsend_size = ven_req->wLength;
 374
 375                 /* the first package */
 376                 ven_req->wValue = ven_req->wValue & 0xFFFB;
 377                 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x2;
 378                 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
 379                         ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 380                         ven_req->wValue, ven_req->wIndex, pdata,
 381                         0x0004, HZ);
 382                 unsend_size = unsend_size - 4;
 383
 384                 /* the middle package */
 385                 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x42;
 386                 while (unsend_size - 4 > 0) {
 387                         pdata = pdata + 4;
 388                         ret = __usb_control_msg(dev, pipe,
 389                                 ven_req->bRequest,
 390                                 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 391                                 ven_req->wValue, ven_req->wIndex, pdata,
 392                                 0x0004, HZ);
 393                         unsend_size = unsend_size - 4;
 394                 }
 395
 396                 /* the last package */
 397                 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x40;
 398                 pdata = pdata + 4;
 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, pdata,
 402                         unsend_size, HZ);
 403         } else {
 404                 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
 405                                 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 406                                 ven_req->wValue, ven_req->wIndex,
 407                                 ven_req->pBuff, ven_req->wLength, HZ);
 408         }
 409
 410         return ret;
 411 }
 412
 413 /*
 414  * cx231xx_write_ctrl_reg()
 415  * sends data to the usb device, specifying bRequest
 416  */
 417 int cx231xx_write_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg, char *buf,
 418                            int len)
 419 {
 420         u8 val = 0;
 421         int ret;
 422         int pipe = usb_sndctrlpipe(dev->udev, 0);
 423
 424         if (dev->state & DEV_DISCONNECTED)
 425                 return -ENODEV;
 426
 427         if ((len < 1) || (len > URB_MAX_CTRL_SIZE))
 428                 return -EINVAL;
 429
 430         switch (len) {
 431         case 1:
 432                 val = ENABLE_ONE_BYTE;
 433                 break;
 434         case 2:
 435                 val = ENABLE_TWE_BYTE;
 436                 break;
 437         case 3:
 438                 val = ENABLE_THREE_BYTE;
 439                 break;
 440         case 4:
 441                 val = ENABLE_FOUR_BYTE;
 442                 break;
 443         default:
 444                 val = 0xFF;     /* invalid option */
 445         }
 446
 447         if (val == 0xFF)
 448                 return -EINVAL;
 449
 450         if (reg_debug) {
 451                 int byte;
 452
 453                 cx231xx_isocdbg("(pipe 0x%08x): "
 454                         "OUT: %02x %02x %02x %02x %02x %02x %02x %02x >>>",
 455                         pipe,
 456                         USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 457                         req, 0, val, reg & 0xff,
 458                         reg >> 8, len & 0xff, len >> 8);
 459
 460                 for (byte = 0; byte < len; byte++)
 461                         cx231xx_isocdbg(" %02x", (unsigned char)buf[byte]);
 462                 cx231xx_isocdbg("\n");
 463         }
 464
 465         ret = __usb_control_msg(dev, pipe, req,
 466                               USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 467                               val, reg, buf, len, HZ);
 468
 469         return ret;
 470 }
 471
 472 /****************************************************************
 473 *           USB Alternate Setting functions                     *
 474 *****************************************************************/
 475
 476 int cx231xx_set_video_alternate(struct cx231xx *dev)
 477 {
 478         int errCode, prev_alt = dev->video_mode.alt;
 479         unsigned int min_pkt_size = dev->width * 2 + 4;
 480         u32 usb_interface_index = 0;
 481
 482         /* When image size is bigger than a certain value,
 483            the frame size should be increased, otherwise, only
 484            green screen will be received.
 485          */
 486         if (dev->width * 2 * dev->height > 720 * 240 * 2)
 487                 min_pkt_size *= 2;
 488
 489         if (dev->width > 360) {
 490                 /* resolutions: 720,704,640 */
 491                 dev->video_mode.alt = 3;
 492         } else if (dev->width > 180) {
 493                 /* resolutions: 360,352,320,240 */
 494                 dev->video_mode.alt = 2;
 495         } else if (dev->width > 0) {
 496                 /* resolutions: 180,176,160,128,88 */
 497                 dev->video_mode.alt = 1;
 498         } else {
 499                 /* Change to alt0 BULK to release USB bandwidth */
 500                 dev->video_mode.alt = 0;
 501         }
 502
 503         if (dev->USE_ISO == 0)
 504                 dev->video_mode.alt = 0;
 505
 506         cx231xx_coredbg("dev->video_mode.alt= %d\n", dev->video_mode.alt);
 507
 508         /* Get the correct video interface Index */
 509         usb_interface_index =
 510             dev->current_pcb_config.hs_config_info[0].interface_info.
 511             video_index + 1;
 512
 513         if (dev->video_mode.alt != prev_alt) {
 514                 cx231xx_coredbg("minimum isoc packet size: %u (alt=%d)\n",
 515                                 min_pkt_size, dev->video_mode.alt);
 516
 517                 if (dev->video_mode.alt_max_pkt_size != NULL)
 518                         dev->video_mode.max_pkt_size =
 519                         dev->video_mode.alt_max_pkt_size[dev->video_mode.alt];
 520                 cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u\n",
 521                                 dev->video_mode.alt,
 522                                 dev->video_mode.max_pkt_size);
 523                 errCode =
 524                     usb_set_interface(dev->udev, usb_interface_index,
 525                                       dev->video_mode.alt);
 526                 if (errCode < 0) {
 527                         cx231xx_errdev
 528                             ("cannot change alt number to %d (error=%i)\n",
 529                              dev->video_mode.alt, errCode);
 530                         return errCode;
 531                 }
 532         }
 533         return 0;
 534 }
 535
 536 int cx231xx_set_alt_setting(struct cx231xx *dev, u8 index, u8 alt)
 537 {
 538         int status = 0;
 539         u32 usb_interface_index = 0;
 540         u32 max_pkt_size = 0;
 541
 542         switch (index) {
 543         case INDEX_TS1:
 544                 usb_interface_index =
 545                     dev->current_pcb_config.hs_config_info[0].interface_info.
 546                     ts1_index + 1;
 547                 dev->ts1_mode.alt = alt;
 548                 if (dev->ts1_mode.alt_max_pkt_size != NULL)
 549                         max_pkt_size = dev->ts1_mode.max_pkt_size =
 550                             dev->ts1_mode.alt_max_pkt_size[dev->ts1_mode.alt];
 551                 break;
 552         case INDEX_TS2:
 553                 usb_interface_index =
 554                     dev->current_pcb_config.hs_config_info[0].interface_info.
 555                     ts2_index + 1;
 556                 break;
 557         case INDEX_AUDIO:
 558                 usb_interface_index =
 559                     dev->current_pcb_config.hs_config_info[0].interface_info.
 560                     audio_index + 1;
 561                 dev->adev.alt = alt;
 562                 if (dev->adev.alt_max_pkt_size != NULL)
 563                         max_pkt_size = dev->adev.max_pkt_size =
 564                             dev->adev.alt_max_pkt_size[dev->adev.alt];
 565                 break;
 566         case INDEX_VIDEO:
 567                 usb_interface_index =
 568                     dev->current_pcb_config.hs_config_info[0].interface_info.
 569                     video_index + 1;
 570                 dev->video_mode.alt = alt;
 571                 if (dev->video_mode.alt_max_pkt_size != NULL)
 572                         max_pkt_size = dev->video_mode.max_pkt_size =
 573                             dev->video_mode.alt_max_pkt_size[dev->video_mode.
 574                                                              alt];
 575                 break;
 576         case INDEX_VANC:
 577                 if (dev->board.no_alt_vanc)
 578                         return 0;
 579                 usb_interface_index =
 580                     dev->current_pcb_config.hs_config_info[0].interface_info.
 581                     vanc_index + 1;
 582                 dev->vbi_mode.alt = alt;
 583                 if (dev->vbi_mode.alt_max_pkt_size != NULL)
 584                         max_pkt_size = dev->vbi_mode.max_pkt_size =
 585                             dev->vbi_mode.alt_max_pkt_size[dev->vbi_mode.alt];
 586                 break;
 587         case INDEX_HANC:
 588                 usb_interface_index =
 589                     dev->current_pcb_config.hs_config_info[0].interface_info.
 590                     hanc_index + 1;
 591                 dev->sliced_cc_mode.alt = alt;
 592                 if (dev->sliced_cc_mode.alt_max_pkt_size != NULL)
 593                         max_pkt_size = dev->sliced_cc_mode.max_pkt_size =
 594                             dev->sliced_cc_mode.alt_max_pkt_size[dev->
 595                                                                  sliced_cc_mode.
 596                                                                  alt];
 597                 break;
 598         default:
 599                 break;
 600         }
 601
 602         if (alt > 0 && max_pkt_size == 0) {
 603                 cx231xx_errdev
 604                 ("can't change interface %d alt no. to %d: Max. Pkt size = 0\n",
 605                 usb_interface_index, alt);
 606                 /*To workaround error number=-71 on EP0 for videograbber,
 607                  need add following codes.*/
 608                 if (dev->board.no_alt_vanc)
 609                         return -1;
 610         }
 611
 612         cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u,"
 613                         "Interface = %d\n", alt, max_pkt_size,
 614                         usb_interface_index);
 615
 616         if (usb_interface_index > 0) {
 617                 status = usb_set_interface(dev->udev, usb_interface_index, alt);
 618                 if (status < 0) {
 619                         cx231xx_errdev
 620                         ("can't change interface %d alt no. to %d (err=%i)\n",
 621                         usb_interface_index, alt, status);
 622                         return status;
 623                 }
 624         }
 625
 626         return status;
 627 }
 628 EXPORT_SYMBOL_GPL(cx231xx_set_alt_setting);
 629
 630 int cx231xx_gpio_set(struct cx231xx *dev, struct cx231xx_reg_seq *gpio)
 631 {
 632         int rc = 0;
 633
 634         if (!gpio)
 635                 return rc;
 636
 637         /* Send GPIO reset sequences specified at board entry */
 638         while (gpio->sleep >= 0) {
 639                 rc = cx231xx_set_gpio_value(dev, gpio->bit, gpio->val);
 640                 if (rc < 0)
 641                         return rc;
 642
 643                 if (gpio->sleep > 0)
 644                         msleep(gpio->sleep);
 645
 646                 gpio++;
 647         }
 648         return rc;
 649 }
 650
 651 int cx231xx_demod_reset(struct cx231xx *dev)
 652 {
 653
 654         u8 status = 0;
 655         u8 value[4] = { 0, 0, 0, 0 };
 656
 657         status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
 658                                  value, 4);
 659
 660         cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
 661                         value[0], value[1], value[2], value[3]);
 662
 663         cx231xx_coredbg("Enter cx231xx_demod_reset()\n");
 664
 665                 value[1] = (u8) 0x3;
 666                 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
 667                                                 PWR_CTL_EN, value, 4);
 668                         msleep(10);
 669
 670                 value[1] = (u8) 0x0;
 671                 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
 672                                                 PWR_CTL_EN, value, 4);
 673                         msleep(10);
 674
 675                 value[1] = (u8) 0x3;
 676                 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
 677                                                 PWR_CTL_EN, value, 4);
 678                         msleep(10);
 679
 680
 681
 682         status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
 683                                  value, 4);
 684
 685         cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
 686                         value[0], value[1], value[2], value[3]);
 687
 688         return status;
 689 }
 690 EXPORT_SYMBOL_GPL(cx231xx_demod_reset);
 691 int is_fw_load(struct cx231xx *dev)
 692 {
 693         return cx231xx_check_fw(dev);
 694 }
 695 EXPORT_SYMBOL_GPL(is_fw_load);
 696
 697 int cx231xx_set_mode(struct cx231xx *dev, enum cx231xx_mode set_mode)
 698 {
 699         int errCode = 0;
 700
 701         if (dev->mode == set_mode)
 702                 return 0;
 703
 704         if (set_mode == CX231XX_SUSPEND) {
 705                 /* Set the chip in power saving mode */
 706                 dev->mode = set_mode;
 707         }
 708
 709         /* Resource is locked */
 710         if (dev->mode != CX231XX_SUSPEND)
 711                 return -EINVAL;
 712
 713         dev->mode = set_mode;
 714
 715         if (dev->mode == CX231XX_DIGITAL_MODE)/* Set Digital power mode */ {
 716         /* set AGC mode to Digital */
 717                 switch (dev->model) {
 718                 case CX231XX_BOARD_CNXT_CARRAERA:
 719                 case CX231XX_BOARD_CNXT_RDE_250:
 720                 case CX231XX_BOARD_CNXT_SHELBY:
 721                 case CX231XX_BOARD_CNXT_RDU_250:
 722                 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
 723                         break;
 724                 case CX231XX_BOARD_CNXT_RDE_253S:
 725                 case CX231XX_BOARD_CNXT_RDU_253S:
 726                         errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
 727                         break;
 728                 case CX231XX_BOARD_HAUPPAUGE_EXETER:
 729                         errCode = cx231xx_set_power_mode(dev,
 730                                                 POLARIS_AVMODE_DIGITAL);
 731                         break;
 732                 default:
 733                         break;
 734                 }
 735         } else/* Set Analog Power mode */ {
 736         /* set AGC mode to Analog */
 737                 switch (dev->model) {
 738                 case CX231XX_BOARD_CNXT_CARRAERA:
 739                 case CX231XX_BOARD_CNXT_RDE_250:
 740                 case CX231XX_BOARD_CNXT_SHELBY:
 741                 case CX231XX_BOARD_CNXT_RDU_250:
 742                 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
 743                         break;
 744                 case CX231XX_BOARD_CNXT_RDE_253S:
 745                 case CX231XX_BOARD_CNXT_RDU_253S:
 746                 case CX231XX_BOARD_HAUPPAUGE_EXETER:
 747                 case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
 748                 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
 749                 case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
 750                 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
 751                         break;
 752                 default:
 753                         break;
 754                 }
 755         }
 756
 757         return errCode ? -EINVAL : 0;
 758 }
 759 EXPORT_SYMBOL_GPL(cx231xx_set_mode);
 760
 761 int cx231xx_ep5_bulkout(struct cx231xx *dev, u8 *firmware, u16 size)
 762 {
 763         int errCode = 0;
 764         int actlen, ret = -ENOMEM;
 765         u32 *buffer;
 766
 767         buffer = kzalloc(4096, GFP_KERNEL);
 768         if (buffer == NULL) {
 769                 cx231xx_info("out of mem\n");
 770                 return -ENOMEM;
 771         }
 772         memcpy(&buffer[0], firmware, 4096);
 773
 774         ret = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 5),
 775                         buffer, 4096, &actlen, 2000);
 776
 777         if (ret)
 778                 cx231xx_info("bulk message failed: %d (%d/%d)", ret,
 779                                 size, actlen);
 780         else {
 781                 errCode = actlen != size ? -1 : 0;
 782         }
 783         kfree(buffer);
 784         return errCode;
 785 }
 786
 787 /*****************************************************************
 788 *                URB Streaming functions                         *
 789 ******************************************************************/
 790
 791 /*
 792  * IRQ callback, called by URB callback
 793  */
 794 static void cx231xx_isoc_irq_callback(struct urb *urb)
 795 {
 796         struct cx231xx_dmaqueue *dma_q = urb->context;
 797         struct cx231xx_video_mode *vmode =
 798             container_of(dma_q, struct cx231xx_video_mode, vidq);
 799         struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
 800         int i;
 801
 802         switch (urb->status) {
 803         case 0:         /* success */
 804         case -ETIMEDOUT:        /* NAK */
 805                 break;
 806         case -ECONNRESET:       /* kill */
 807         case -ENOENT:
 808         case -ESHUTDOWN:
 809                 return;
 810         default:                /* error */
 811                 cx231xx_isocdbg("urb completition error %d.\n", urb->status);
 812                 break;
 813         }
 814
 815         /* Copy data from URB */
 816         spin_lock(&dev->video_mode.slock);
 817         dev->video_mode.isoc_ctl.isoc_copy(dev, urb);
 818         spin_unlock(&dev->video_mode.slock);
 819
 820         /* Reset urb buffers */
 821         for (i = 0; i < urb->number_of_packets; i++) {
 822                 urb->iso_frame_desc[i].status = 0;
 823                 urb->iso_frame_desc[i].actual_length = 0;
 824         }
 825
 826         urb->status = usb_submit_urb(urb, GFP_ATOMIC);
 827         if (urb->status) {
 828                 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
 829                                 urb->status);
 830         }
 831 }
 832 /*****************************************************************
 833 *                URB Streaming functions                         *
 834 ******************************************************************/
 835
 836 /*
 837  * IRQ callback, called by URB callback
 838  */
 839 static void cx231xx_bulk_irq_callback(struct urb *urb)
 840 {
 841         struct cx231xx_dmaqueue *dma_q = urb->context;
 842         struct cx231xx_video_mode *vmode =
 843             container_of(dma_q, struct cx231xx_video_mode, vidq);
 844         struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
 845
 846         switch (urb->status) {
 847         case 0:         /* success */
 848         case -ETIMEDOUT:        /* NAK */
 849                 break;
 850         case -ECONNRESET:       /* kill */
 851         case -ENOENT:
 852         case -ESHUTDOWN:
 853                 return;
 854         default:                /* error */
 855                 cx231xx_isocdbg("urb completition error %d.\n", urb->status);
 856                 break;
 857         }
 858
 859         /* Copy data from URB */
 860         spin_lock(&dev->video_mode.slock);
 861         dev->video_mode.bulk_ctl.bulk_copy(dev, urb);
 862         spin_unlock(&dev->video_mode.slock);
 863
 864         /* Reset urb buffers */
 865         urb->status = usb_submit_urb(urb, GFP_ATOMIC);
 866         if (urb->status) {
 867                 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
 868                                 urb->status);
 869         }
 870 }
 871 /*
 872  * Stop and Deallocate URBs
 873  */
 874 void cx231xx_uninit_isoc(struct cx231xx *dev)
 875 {
 876         struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
 877         struct urb *urb;
 878         int i;
 879
 880         cx231xx_isocdbg("cx231xx: called cx231xx_uninit_isoc\n");
 881
 882         dev->video_mode.isoc_ctl.nfields = -1;
 883         for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
 884                 urb = dev->video_mode.isoc_ctl.urb[i];
 885                 if (urb) {
 886                         if (!irqs_disabled())
 887                                 usb_kill_urb(urb);
 888                         else
 889                                 usb_unlink_urb(urb);
 890
 891                         if (dev->video_mode.isoc_ctl.transfer_buffer[i]) {
 892                                 usb_free_coherent(dev->udev,
 893                                                   urb->transfer_buffer_length,
 894                                                   dev->video_mode.isoc_ctl.
 895                                                   transfer_buffer[i],
 896                                                   urb->transfer_dma);
 897                         }
 898                         usb_free_urb(urb);
 899                         dev->video_mode.isoc_ctl.urb[i] = NULL;
 900                 }
 901                 dev->video_mode.isoc_ctl.transfer_buffer[i] = NULL;
 902         }
 903
 904         kfree(dev->video_mode.isoc_ctl.urb);
 905         kfree(dev->video_mode.isoc_ctl.transfer_buffer);
 906         kfree(dma_q->p_left_data);
 907
 908         dev->video_mode.isoc_ctl.urb = NULL;
 909         dev->video_mode.isoc_ctl.transfer_buffer = NULL;
 910         dev->video_mode.isoc_ctl.num_bufs = 0;
 911         dma_q->p_left_data = NULL;
 912
 913         if (dev->mode_tv == 0)
 914                 cx231xx_capture_start(dev, 0, Raw_Video);
 915         else
 916                 cx231xx_capture_start(dev, 0, TS1_serial_mode);
 917
 918
 919 }
 920 EXPORT_SYMBOL_GPL(cx231xx_uninit_isoc);
 921
 922 /*
 923  * Stop and Deallocate URBs
 924  */
 925 void cx231xx_uninit_bulk(struct cx231xx *dev)
 926 {
 927         struct urb *urb;
 928         int i;
 929
 930         cx231xx_isocdbg("cx231xx: called cx231xx_uninit_bulk\n");
 931
 932         dev->video_mode.bulk_ctl.nfields = -1;
 933         for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
 934                 urb = dev->video_mode.bulk_ctl.urb[i];
 935                 if (urb) {
 936                         if (!irqs_disabled())
 937                                 usb_kill_urb(urb);
 938                         else
 939                                 usb_unlink_urb(urb);
 940
 941                         if (dev->video_mode.bulk_ctl.transfer_buffer[i]) {
 942                                 usb_free_coherent(dev->udev,
 943                                                 urb->transfer_buffer_length,
 944                                                 dev->video_mode.isoc_ctl.
 945                                                 transfer_buffer[i],
 946                                                 urb->transfer_dma);
 947                         }
 948                         usb_free_urb(urb);
 949                         dev->video_mode.bulk_ctl.urb[i] = NULL;
 950                 }
 951                 dev->video_mode.bulk_ctl.transfer_buffer[i] = NULL;
 952         }
 953
 954         kfree(dev->video_mode.bulk_ctl.urb);
 955         kfree(dev->video_mode.bulk_ctl.transfer_buffer);
 956
 957         dev->video_mode.bulk_ctl.urb = NULL;
 958         dev->video_mode.bulk_ctl.transfer_buffer = NULL;
 959         dev->video_mode.bulk_ctl.num_bufs = 0;
 960
 961         if (dev->mode_tv == 0)
 962                 cx231xx_capture_start(dev, 0, Raw_Video);
 963         else
 964                 cx231xx_capture_start(dev, 0, TS1_serial_mode);
 965
 966
 967 }
 968 EXPORT_SYMBOL_GPL(cx231xx_uninit_bulk);
 969
 970 /*
 971  * Allocate URBs and start IRQ
 972  */
 973 int cx231xx_init_isoc(struct cx231xx *dev, int max_packets,
 974                       int num_bufs, int max_pkt_size,
 975                       int (*isoc_copy) (struct cx231xx *dev, struct urb *urb))
 976 {
 977         struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
 978         int i;
 979         int sb_size, pipe;
 980         struct urb *urb;
 981         int j, k;
 982         int rc;
 983
 984         /* De-allocates all pending stuff */
 985         cx231xx_uninit_isoc(dev);
 986
 987         dma_q->p_left_data = kzalloc(4096, GFP_KERNEL);
 988         if (dma_q->p_left_data == NULL) {
 989                 cx231xx_info("out of mem\n");
 990                 return -ENOMEM;
 991         }
 992
 993
 994
 995         dev->video_mode.isoc_ctl.isoc_copy = isoc_copy;
 996         dev->video_mode.isoc_ctl.num_bufs = num_bufs;
 997         dma_q->pos = 0;
 998         dma_q->is_partial_line = 0;
 999         dma_q->last_sav = 0;
1000         dma_q->current_field = -1;
1001         dma_q->field1_done = 0;
1002         dma_q->lines_per_field = dev->height / 2;
1003         dma_q->bytes_left_in_line = dev->width << 1;
1004         dma_q->lines_completed = 0;
1005         dma_q->mpeg_buffer_done = 0;
1006         dma_q->left_data_count = 0;
1007         dma_q->mpeg_buffer_completed = 0;
1008         dma_q->add_ps_package_head = CX231XX_NEED_ADD_PS_PACKAGE_HEAD;
1009         dma_q->ps_head[0] = 0x00;
1010         dma_q->ps_head[1] = 0x00;
1011         dma_q->ps_head[2] = 0x01;
1012         dma_q->ps_head[3] = 0xBA;
1013         for (i = 0; i < 8; i++)
1014                 dma_q->partial_buf[i] = 0;
1015
1016         dev->video_mode.isoc_ctl.urb =
1017             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1018         if (!dev->video_mode.isoc_ctl.urb) {
1019                 cx231xx_errdev("cannot alloc memory for usb buffers\n");
1020                 return -ENOMEM;
1021         }
1022
1023         dev->video_mode.isoc_ctl.transfer_buffer =
1024             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1025         if (!dev->video_mode.isoc_ctl.transfer_buffer) {
1026                 cx231xx_errdev("cannot allocate memory for usbtransfer\n");
1027                 kfree(dev->video_mode.isoc_ctl.urb);
1028                 return -ENOMEM;
1029         }
1030
1031         dev->video_mode.isoc_ctl.max_pkt_size = max_pkt_size;
1032         dev->video_mode.isoc_ctl.buf = NULL;
1033
1034         sb_size = max_packets * dev->video_mode.isoc_ctl.max_pkt_size;
1035
1036         if (dev->mode_tv == 1)
1037                 dev->video_mode.end_point_addr = 0x81;
1038         else
1039                 dev->video_mode.end_point_addr = 0x84;
1040
1041
1042         /* allocate urbs and transfer buffers */
1043         for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1044                 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
1045                 if (!urb) {
1046                         cx231xx_err("cannot alloc isoc_ctl.urb %i\n", i);
1047                         cx231xx_uninit_isoc(dev);
1048                         return -ENOMEM;
1049                 }
1050                 dev->video_mode.isoc_ctl.urb[i] = urb;
1051
1052                 dev->video_mode.isoc_ctl.transfer_buffer[i] =
1053                     usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1054                                        &urb->transfer_dma);
1055                 if (!dev->video_mode.isoc_ctl.transfer_buffer[i]) {
1056                         cx231xx_err("unable to allocate %i bytes for transfer"
1057                                     " buffer %i%s\n",
1058                                     sb_size, i,
1059                                     in_interrupt() ? " while in int" : "");
1060                         cx231xx_uninit_isoc(dev);
1061                         return -ENOMEM;
1062                 }
1063                 memset(dev->video_mode.isoc_ctl.transfer_buffer[i], 0, sb_size);
1064
1065                 pipe =
1066                     usb_rcvisocpipe(dev->udev, dev->video_mode.end_point_addr);
1067
1068                 usb_fill_int_urb(urb, dev->udev, pipe,
1069                                  dev->video_mode.isoc_ctl.transfer_buffer[i],
1070                                  sb_size, cx231xx_isoc_irq_callback, dma_q, 1);
1071
1072                 urb->number_of_packets = max_packets;
1073                 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
1074
1075                 k = 0;
1076                 for (j = 0; j < max_packets; j++) {
1077                         urb->iso_frame_desc[j].offset = k;
1078                         urb->iso_frame_desc[j].length =
1079                             dev->video_mode.isoc_ctl.max_pkt_size;
1080                         k += dev->video_mode.isoc_ctl.max_pkt_size;
1081                 }
1082         }
1083
1084         init_waitqueue_head(&dma_q->wq);
1085
1086         /* submit urbs and enables IRQ */
1087         for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1088                 rc = usb_submit_urb(dev->video_mode.isoc_ctl.urb[i],
1089                                     GFP_ATOMIC);
1090                 if (rc) {
1091                         cx231xx_err("submit of urb %i failed (error=%i)\n", i,
1092                                     rc);
1093                         cx231xx_uninit_isoc(dev);
1094                         return rc;
1095                 }
1096         }
1097
1098         if (dev->mode_tv == 0)
1099                 cx231xx_capture_start(dev, 1, Raw_Video);
1100         else
1101                 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1102
1103         return 0;
1104 }
1105 EXPORT_SYMBOL_GPL(cx231xx_init_isoc);
1106
1107 /*
1108  * Allocate URBs and start IRQ
1109  */
1110 int cx231xx_init_bulk(struct cx231xx *dev, int max_packets,
1111                       int num_bufs, int max_pkt_size,
1112                       int (*bulk_copy) (struct cx231xx *dev, struct urb *urb))
1113 {
1114         struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
1115         int i;
1116         int sb_size, pipe;
1117         struct urb *urb;
1118         int rc;
1119
1120         dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
1121
1122         cx231xx_coredbg("Setting Video mux to %d\n", dev->video_input);
1123
1124         video_mux(dev, dev->video_input);
1125
1126         /* De-allocates all pending stuff */
1127         cx231xx_uninit_bulk(dev);
1128
1129         dev->video_mode.bulk_ctl.bulk_copy = bulk_copy;
1130         dev->video_mode.bulk_ctl.num_bufs = num_bufs;
1131         dma_q->pos = 0;
1132         dma_q->is_partial_line = 0;
1133         dma_q->last_sav = 0;
1134         dma_q->current_field = -1;
1135         dma_q->field1_done = 0;
1136         dma_q->lines_per_field = dev->height / 2;
1137         dma_q->bytes_left_in_line = dev->width << 1;
1138         dma_q->lines_completed = 0;
1139         dma_q->mpeg_buffer_done = 0;
1140         dma_q->left_data_count = 0;
1141         dma_q->mpeg_buffer_completed = 0;
1142         dma_q->ps_head[0] = 0x00;
1143         dma_q->ps_head[1] = 0x00;
1144         dma_q->ps_head[2] = 0x01;
1145         dma_q->ps_head[3] = 0xBA;
1146         for (i = 0; i < 8; i++)
1147                 dma_q->partial_buf[i] = 0;
1148
1149         dev->video_mode.bulk_ctl.urb =
1150             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1151         if (!dev->video_mode.bulk_ctl.urb) {
1152                 cx231xx_errdev("cannot alloc memory for usb buffers\n");
1153                 return -ENOMEM;
1154         }
1155
1156         dev->video_mode.bulk_ctl.transfer_buffer =
1157             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1158         if (!dev->video_mode.bulk_ctl.transfer_buffer) {
1159                 cx231xx_errdev("cannot allocate memory for usbtransfer\n");
1160                 kfree(dev->video_mode.bulk_ctl.urb);
1161                 return -ENOMEM;
1162         }
1163
1164         dev->video_mode.bulk_ctl.max_pkt_size = max_pkt_size;
1165         dev->video_mode.bulk_ctl.buf = NULL;
1166
1167         sb_size = max_packets * dev->video_mode.bulk_ctl.max_pkt_size;
1168
1169         if (dev->mode_tv == 1)
1170                 dev->video_mode.end_point_addr = 0x81;
1171         else
1172                 dev->video_mode.end_point_addr = 0x84;
1173
1174
1175         /* allocate urbs and transfer buffers */
1176         for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1177                 urb = usb_alloc_urb(0, GFP_KERNEL);
1178                 if (!urb) {
1179                         cx231xx_err("cannot alloc bulk_ctl.urb %i\n", i);
1180                         cx231xx_uninit_bulk(dev);
1181                         return -ENOMEM;
1182                 }
1183                 dev->video_mode.bulk_ctl.urb[i] = urb;
1184                 urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
1185
1186                 dev->video_mode.bulk_ctl.transfer_buffer[i] =
1187                     usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1188                                      &urb->transfer_dma);
1189                 if (!dev->video_mode.bulk_ctl.transfer_buffer[i]) {
1190                         cx231xx_err("unable to allocate %i bytes for transfer"
1191                                     " buffer %i%s\n",
1192                                     sb_size, i,
1193                                     in_interrupt() ? " while in int" : "");
1194                         cx231xx_uninit_bulk(dev);
1195                         return -ENOMEM;
1196                 }
1197                 memset(dev->video_mode.bulk_ctl.transfer_buffer[i], 0, sb_size);
1198
1199                 pipe = usb_rcvbulkpipe(dev->udev,
1200                                  dev->video_mode.end_point_addr);
1201                 usb_fill_bulk_urb(urb, dev->udev, pipe,
1202                                   dev->video_mode.bulk_ctl.transfer_buffer[i],
1203                                   sb_size, cx231xx_bulk_irq_callback, dma_q);
1204         }
1205
1206         init_waitqueue_head(&dma_q->wq);
1207
1208         /* submit urbs and enables IRQ */
1209         for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1210                 rc = usb_submit_urb(dev->video_mode.bulk_ctl.urb[i],
1211                                     GFP_ATOMIC);
1212                 if (rc) {
1213                         cx231xx_err("submit of urb %i failed (error=%i)\n", i,
1214                                     rc);
1215                         cx231xx_uninit_bulk(dev);
1216                         return rc;
1217                 }
1218         }
1219
1220         if (dev->mode_tv == 0)
1221                 cx231xx_capture_start(dev, 1, Raw_Video);
1222         else
1223                 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1224
1225         return 0;
1226 }
1227 EXPORT_SYMBOL_GPL(cx231xx_init_bulk);
1228 void cx231xx_stop_TS1(struct cx231xx *dev)
1229 {
1230         u8 val[4] = { 0, 0, 0, 0 };
1231
1232         val[0] = 0x00;
1233         val[1] = 0x03;
1234         val[2] = 0x00;
1235         val[3] = 0x00;
1236         cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1237                         TS_MODE_REG, val, 4);
1238
1239         val[0] = 0x00;
1240         val[1] = 0x70;
1241         val[2] = 0x04;
1242         val[3] = 0x00;
1243         cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1244                         TS1_CFG_REG, val, 4);
1245 }
1246 /* EXPORT_SYMBOL_GPL(cx231xx_stop_TS1); */
1247 void cx231xx_start_TS1(struct cx231xx *dev)
1248 {
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         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         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->board.external_av) {
1305                 errCode = cx231xx_set_power_mode(dev,
1306                                  POLARIS_AVMODE_ENXTERNAL_AV);
1307                 if (errCode < 0) {
1308                         cx231xx_errdev
1309                         ("%s: Failed to set Power - errCode [%d]!\n",
1310                         __func__, errCode);
1311                         return errCode;
1312                 }
1313         } else {
1314                 errCode = cx231xx_set_power_mode(dev,
1315                                  POLARIS_AVMODE_ANALOGT_TV);
1316                 if (errCode < 0) {
1317                         cx231xx_errdev
1318                         ("%s: Failed to set Power - errCode [%d]!\n",
1319                         __func__, errCode);
1320                         return errCode;
1321                 }
1322         }
1323
1324         /* reset the Tuner, if it is a Xceive tuner */
1325         if ((dev->board.tuner_type == TUNER_XC5000) ||
1326             (dev->board.tuner_type == TUNER_XC2028))
1327                         cx231xx_gpio_set(dev, dev->board.tuner_gpio);
1328
1329         /* initialize Colibri block */
1330         errCode = cx231xx_afe_init_super_block(dev, 0x23c);
1331         if (errCode < 0) {
1332                 cx231xx_errdev
1333                     ("%s: cx231xx_afe init super block - errCode [%d]!\n",
1334                      __func__, errCode);
1335                 return errCode;
1336         }
1337         errCode = cx231xx_afe_init_channels(dev);
1338         if (errCode < 0) {
1339                 cx231xx_errdev
1340                     ("%s: cx231xx_afe init channels - errCode [%d]!\n",
1341                      __func__, errCode);
1342                 return errCode;
1343         }
1344
1345         /* Set DIF in By pass mode */
1346         errCode = cx231xx_dif_set_standard(dev, DIF_USE_BASEBAND);
1347         if (errCode < 0) {
1348                 cx231xx_errdev
1349                     ("%s: cx231xx_dif set to By pass mode - errCode [%d]!\n",
1350                      __func__, errCode);
1351                 return errCode;
1352         }
1353
1354         /* I2S block related functions */
1355         errCode = cx231xx_i2s_blk_initialize(dev);
1356         if (errCode < 0) {
1357                 cx231xx_errdev
1358                     ("%s: cx231xx_i2s block initialize - errCode [%d]!\n",
1359                      __func__, errCode);
1360                 return errCode;
1361         }
1362
1363         /* init control pins */
1364         errCode = cx231xx_init_ctrl_pin_status(dev);
1365         if (errCode < 0) {
1366                 cx231xx_errdev("%s: cx231xx_init ctrl pins - errCode [%d]!\n",
1367                                __func__, errCode);
1368                 return errCode;
1369         }
1370
1371         /* set AGC mode to Analog */
1372         switch (dev->model) {
1373         case CX231XX_BOARD_CNXT_CARRAERA:
1374         case CX231XX_BOARD_CNXT_RDE_250:
1375         case CX231XX_BOARD_CNXT_SHELBY:
1376         case CX231XX_BOARD_CNXT_RDU_250:
1377         errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
1378                 break;
1379         case CX231XX_BOARD_CNXT_RDE_253S:
1380         case CX231XX_BOARD_CNXT_RDU_253S:
1381         case CX231XX_BOARD_HAUPPAUGE_EXETER:
1382         case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
1383         case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
1384         case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
1385         errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
1386                 break;
1387         default:
1388                 break;
1389         }
1390         if (errCode < 0) {
1391                 cx231xx_errdev
1392                     ("%s: cx231xx_AGC mode to Analog - errCode [%d]!\n",
1393                      __func__, errCode);
1394                 return errCode;
1395         }
1396
1397         /* set all alternate settings to zero initially */
1398         cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
1399         cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1400         cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
1401         if (dev->board.has_dvb)
1402                 cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
1403
1404         /* set the I2C master port to 3 on channel 1 */
1405         errCode = cx231xx_enable_i2c_port_3(dev, true);
1406
1407         return errCode;
1408 }
1409 EXPORT_SYMBOL_GPL(cx231xx_dev_init);
1410
1411 void cx231xx_dev_uninit(struct cx231xx *dev)
1412 {
1413         /* Un Initialize I2C bus */
1414         cx231xx_i2c_unregister(&dev->i2c_bus[2]);
1415         cx231xx_i2c_unregister(&dev->i2c_bus[1]);
1416         cx231xx_i2c_unregister(&dev->i2c_bus[0]);
1417 }
1418 EXPORT_SYMBOL_GPL(cx231xx_dev_uninit);
1419
1420 /*****************************************************************
1421 *              G P I O related functions                         *
1422 ******************************************************************/
1423 int cx231xx_send_gpio_cmd(struct cx231xx *dev, u32 gpio_bit, u8 *gpio_val,
1424                           u8 len, u8 request, u8 direction)
1425 {
1426         int status = 0;
1427         struct VENDOR_REQUEST_IN ven_req;
1428
1429         /* Set wValue */
1430         ven_req.wValue = (u16) (gpio_bit >> 16 & 0xffff);
1431
1432         /* set request */
1433         if (!request) {
1434                 if (direction)
1435                         ven_req.bRequest = VRT_GET_GPIO;        /* 0x8 gpio */
1436                 else
1437                         ven_req.bRequest = VRT_SET_GPIO;        /* 0x9 gpio */
1438         } else {
1439                 if (direction)
1440                         ven_req.bRequest = VRT_GET_GPIE;        /* 0xa gpie */
1441                 else
1442                         ven_req.bRequest = VRT_SET_GPIE;        /* 0xb gpie */
1443         }
1444
1445         /* set index value */
1446         ven_req.wIndex = (u16) (gpio_bit & 0xffff);
1447
1448         /* set wLength value */
1449         ven_req.wLength = len;
1450
1451         /* set bData value */
1452         ven_req.bData = 0;
1453
1454         /* set the buffer for read / write */
1455         ven_req.pBuff = gpio_val;
1456
1457         /* set the direction */
1458         if (direction) {
1459                 ven_req.direction = USB_DIR_IN;
1460                 memset(ven_req.pBuff, 0x00, ven_req.wLength);
1461         } else
1462                 ven_req.direction = USB_DIR_OUT;
1463
1464
1465         /* call common vendor command request */
1466         status = cx231xx_send_vendor_cmd(dev, &ven_req);
1467         if (status < 0) {
1468                 cx231xx_info
1469                     ("UsbInterface::sendCommand, failed with status -%d\n",
1470                      status);
1471         }
1472
1473         return status;
1474 }
1475 EXPORT_SYMBOL_GPL(cx231xx_send_gpio_cmd);
1476
1477 /*****************************************************************
1478  *    C O N T R O L - Register R E A D / W R I T E functions     *
1479  *****************************************************************/
1480 int cx231xx_mode_register(struct cx231xx *dev, u16 address, u32 mode)
1481 {
1482         u8 value[4] = { 0x0, 0x0, 0x0, 0x0 };
1483         u32 tmp = 0;
1484         int status = 0;
1485
1486         status =
1487             cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, address, value, 4);
1488         if (status < 0)
1489                 return status;
1490
1491         tmp = *((u32 *) value);
1492         tmp |= mode;
1493
1494         value[0] = (u8) tmp;
1495         value[1] = (u8) (tmp >> 8);
1496         value[2] = (u8) (tmp >> 16);
1497         value[3] = (u8) (tmp >> 24);
1498
1499         status =
1500             cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, address, value, 4);
1501
1502         return status;
1503 }
1504
1505 /*****************************************************************
1506  *            I 2 C Internal C O N T R O L   functions           *
1507  *****************************************************************/
1508 int cx231xx_read_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1509                           u8 saddr_len, u32 *data, u8 data_len, int master)
1510 {
1511         int status = 0;
1512         struct cx231xx_i2c_xfer_data req_data;
1513         u8 value[64] = "0";
1514
1515         if (saddr_len == 0)
1516                 saddr = 0;
1517         else if (saddr_len == 1)
1518                 saddr &= 0xff;
1519
1520         /* prepare xfer_data struct */
1521         req_data.dev_addr = dev_addr >> 1;
1522         req_data.direction = I2C_M_RD;
1523         req_data.saddr_len = saddr_len;
1524         req_data.saddr_dat = saddr;
1525         req_data.buf_size = data_len;
1526         req_data.p_buffer = (u8 *) value;
1527
1528         /* usb send command */
1529         if (master == 0)
1530                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1531                                          &req_data);
1532         else if (master == 1)
1533                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1534                                          &req_data);
1535         else if (master == 2)
1536                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1537                                          &req_data);
1538
1539         if (status >= 0) {
1540                 /* Copy the data read back to main buffer */
1541                 if (data_len == 1)
1542                         *data = value[0];
1543                 else if (data_len == 4)
1544                         *data =
1545                             value[0] | value[1] << 8 | value[2] << 16 | value[3]
1546                             << 24;
1547                 else if (data_len > 4)
1548                         *data = value[saddr];
1549         }
1550
1551         return status;
1552 }
1553
1554 int cx231xx_write_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1555                            u8 saddr_len, u32 data, u8 data_len, int master)
1556 {
1557         int status = 0;
1558         u8 value[4] = { 0, 0, 0, 0 };
1559         struct cx231xx_i2c_xfer_data req_data;
1560
1561         value[0] = (u8) data;
1562         value[1] = (u8) (data >> 8);
1563         value[2] = (u8) (data >> 16);
1564         value[3] = (u8) (data >> 24);
1565
1566         if (saddr_len == 0)
1567                 saddr = 0;
1568         else if (saddr_len == 1)
1569                 saddr &= 0xff;
1570
1571         /* prepare xfer_data struct */
1572         req_data.dev_addr = dev_addr >> 1;
1573         req_data.direction = 0;
1574         req_data.saddr_len = saddr_len;
1575         req_data.saddr_dat = saddr;
1576         req_data.buf_size = data_len;
1577         req_data.p_buffer = value;
1578
1579         /* usb send command */
1580         if (master == 0)
1581                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1582                                  &req_data);
1583         else if (master == 1)
1584                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1585                                  &req_data);
1586         else if (master == 2)
1587                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1588                                  &req_data);
1589
1590         return status;
1591 }
1592
1593 int cx231xx_read_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1594                           u8 saddr_len, u32 *data, u8 data_len)
1595 {
1596         int status = 0;
1597         struct cx231xx_i2c_xfer_data req_data;
1598         u8 value[4] = { 0, 0, 0, 0 };
1599
1600         if (saddr_len == 0)
1601                 saddr = 0;
1602         else if (saddr_len == 1)
1603                 saddr &= 0xff;
1604
1605         /* prepare xfer_data struct */
1606         req_data.dev_addr = dev_addr >> 1;
1607         req_data.direction = I2C_M_RD;
1608         req_data.saddr_len = saddr_len;
1609         req_data.saddr_dat = saddr;
1610         req_data.buf_size = data_len;
1611         req_data.p_buffer = (u8 *) value;
1612
1613         /* usb send command */
1614         status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1615
1616         if (status >= 0) {
1617                 /* Copy the data read back to main buffer */
1618                 if (data_len == 1)
1619                         *data = value[0];
1620                 else
1621                         *data =
1622                             value[0] | value[1] << 8 | value[2] << 16 | value[3]
1623                             << 24;
1624         }
1625
1626         return status;
1627 }
1628
1629 int cx231xx_write_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1630                            u8 saddr_len, u32 data, u8 data_len)
1631 {
1632         int status = 0;
1633         u8 value[4] = { 0, 0, 0, 0 };
1634         struct cx231xx_i2c_xfer_data req_data;
1635
1636         value[0] = (u8) data;
1637         value[1] = (u8) (data >> 8);
1638         value[2] = (u8) (data >> 16);
1639         value[3] = (u8) (data >> 24);
1640
1641         if (saddr_len == 0)
1642                 saddr = 0;
1643         else if (saddr_len == 1)
1644                 saddr &= 0xff;
1645
1646         /* prepare xfer_data struct */
1647         req_data.dev_addr = dev_addr >> 1;
1648         req_data.direction = 0;
1649         req_data.saddr_len = saddr_len;
1650         req_data.saddr_dat = saddr;
1651         req_data.buf_size = data_len;
1652         req_data.p_buffer = value;
1653
1654         /* usb send command */
1655         status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1656
1657         return status;
1658 }
1659
1660 int cx231xx_reg_mask_write(struct cx231xx *dev, u8 dev_addr, u8 size,
1661                            u16 register_address, u8 bit_start, u8 bit_end,
1662                            u32 value)
1663 {
1664         int status = 0;
1665         u32 tmp;
1666         u32 mask = 0;
1667         int i;
1668
1669         if (bit_start > (size - 1) || bit_end > (size - 1))
1670                 return -1;
1671
1672         if (size == 8) {
1673                 status =
1674                     cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1675                                           &tmp, 1);
1676         } else {
1677                 status =
1678                     cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1679                                           &tmp, 4);
1680         }
1681
1682         if (status < 0)
1683                 return status;
1684
1685         mask = 1 << bit_end;
1686         for (i = bit_end; i > bit_start && i > 0; i--)
1687                 mask = mask + (1 << (i - 1));
1688
1689         value <<= bit_start;
1690
1691         if (size == 8) {
1692                 tmp &= ~mask;
1693                 tmp |= value;
1694                 tmp &= 0xff;
1695                 status =
1696                     cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1697                                            tmp, 1);
1698         } else {
1699                 tmp &= ~mask;
1700                 tmp |= value;
1701                 status =
1702                     cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1703                                            tmp, 4);
1704         }
1705
1706         return status;
1707 }
1708
1709 int cx231xx_read_modify_write_i2c_dword(struct cx231xx *dev, u8 dev_addr,
1710                                         u16 saddr, u32 mask, u32 value)
1711 {
1712         u32 temp;
1713         int status = 0;
1714
1715         status = cx231xx_read_i2c_data(dev, dev_addr, saddr, 2, &temp, 4);
1716
1717         if (status < 0)
1718                 return status;
1719
1720         temp &= ~mask;
1721         temp |= value;
1722
1723         status = cx231xx_write_i2c_data(dev, dev_addr, saddr, 2, temp, 4);
1724
1725         return status;
1726 }
1727
1728 u32 cx231xx_set_field(u32 field_mask, u32 data)
1729 {
1730         u32 temp;
1731
1732         for (temp = field_mask; (temp & 1) == 0; temp >>= 1)
1733                 data <<= 1;
1734
1735         return data;
1736 }