drivers/media/usb/cx231xx/cx231xx-core.c

   1 /*
   2    cx231xx-core.c - driver for Conexant Cx23100/101/102
   3                                 USB video capture devices
   4
   5    Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
   6                                 Based on em28xx driver
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  */
  22
  23 #include "cx231xx.h"
  24 #include <linux/init.h>
  25 #include <linux/list.h>
  26 #include <linux/module.h>
  27 #include <linux/slab.h>
  28 #include <linux/vmalloc.h>
  29 #include <media/v4l2-common.h>
  30 #include <media/tuner.h>
  31
  32 #include "cx231xx-reg.h"
  33
  34 /* #define ENABLE_DEBUG_ISOC_FRAMES */
  35
  36 static unsigned int core_debug;
  37 module_param(core_debug, int, 0644);
  38 MODULE_PARM_DESC(core_debug, "enable debug messages [core]");
  39
  40 #define cx231xx_coredbg(fmt, arg...) do {\
  41         if (core_debug) \
  42                 printk(KERN_INFO "%s %s :"fmt, \
  43                          dev->name, __func__ , ##arg); } while (0)
  44
  45 static unsigned int reg_debug;
  46 module_param(reg_debug, int, 0644);
  47 MODULE_PARM_DESC(reg_debug, "enable debug messages [URB reg]");
  48
  49 static int alt = CX231XX_PINOUT;
  50 module_param(alt, int, 0644);
  51 MODULE_PARM_DESC(alt, "alternate setting to use for video endpoint");
  52
  53 #define cx231xx_isocdbg(fmt, arg...) do {\
  54         if (core_debug) \
  55                 printk(KERN_INFO "%s %s :"fmt, \
  56                          dev->name, __func__ , ##arg); } while (0)
  57
  58 /*****************************************************************
  59 *             Device control list functions                                      *
  60 ******************************************************************/
  61
  62 LIST_HEAD(cx231xx_devlist);
  63 static DEFINE_MUTEX(cx231xx_devlist_mutex);
  64
  65 /*
  66  * cx231xx_realease_resources()
  67  * unregisters the v4l2,i2c and usb devices
  68  * called when the device gets disconected or at module unload
  69 */
  70 void cx231xx_remove_from_devlist(struct cx231xx *dev)
  71 {
  72         if (dev == NULL)
  73                 return;
  74         if (dev->udev == NULL)
  75                 return;
  76
  77         if (atomic_read(&dev->devlist_count) > 0) {
  78                 mutex_lock(&cx231xx_devlist_mutex);
  79                 list_del(&dev->devlist);
  80                 atomic_dec(&dev->devlist_count);
  81                 mutex_unlock(&cx231xx_devlist_mutex);
  82         }
  83 };
  84
  85 void cx231xx_add_into_devlist(struct cx231xx *dev)
  86 {
  87         mutex_lock(&cx231xx_devlist_mutex);
  88         list_add_tail(&dev->devlist, &cx231xx_devlist);
  89         atomic_inc(&dev->devlist_count);
  90         mutex_unlock(&cx231xx_devlist_mutex);
  91 };
  92
  93 static LIST_HEAD(cx231xx_extension_devlist);
  94
  95 int cx231xx_register_extension(struct cx231xx_ops *ops)
  96 {
  97         struct cx231xx *dev = NULL;
  98
  99         mutex_lock(&cx231xx_devlist_mutex);
 100         list_add_tail(&ops->next, &cx231xx_extension_devlist);
 101         list_for_each_entry(dev, &cx231xx_devlist, devlist) {
 102                 ops->init(dev);
 103                 dev_info(dev->dev, "%s initialized\n", ops->name);
 104         }
 105         mutex_unlock(&cx231xx_devlist_mutex);
 106         return 0;
 107 }
 108 EXPORT_SYMBOL(cx231xx_register_extension);
 109
 110 void cx231xx_unregister_extension(struct cx231xx_ops *ops)
 111 {
 112         struct cx231xx *dev = NULL;
 113
 114         mutex_lock(&cx231xx_devlist_mutex);
 115         list_for_each_entry(dev, &cx231xx_devlist, devlist) {
 116                 ops->fini(dev);
 117                 dev_info(dev->dev, "%s removed\n", ops->name);
 118         }
 119
 120         list_del(&ops->next);
 121         mutex_unlock(&cx231xx_devlist_mutex);
 122 }
 123 EXPORT_SYMBOL(cx231xx_unregister_extension);
 124
 125 void cx231xx_init_extension(struct cx231xx *dev)
 126 {
 127         struct cx231xx_ops *ops = NULL;
 128
 129         mutex_lock(&cx231xx_devlist_mutex);
 130         if (!list_empty(&cx231xx_extension_devlist)) {
 131                 list_for_each_entry(ops, &cx231xx_extension_devlist, next) {
 132                         if (ops->init)
 133                                 ops->init(dev);
 134                 }
 135         }
 136         mutex_unlock(&cx231xx_devlist_mutex);
 137 }
 138
 139 void cx231xx_close_extension(struct cx231xx *dev)
 140 {
 141         struct cx231xx_ops *ops = NULL;
 142
 143         mutex_lock(&cx231xx_devlist_mutex);
 144         if (!list_empty(&cx231xx_extension_devlist)) {
 145                 list_for_each_entry(ops, &cx231xx_extension_devlist, next) {
 146                         if (ops->fini)
 147                                 ops->fini(dev);
 148                 }
 149         }
 150         mutex_unlock(&cx231xx_devlist_mutex);
 151 }
 152
 153 /****************************************************************
 154 *               U S B related functions                         *
 155 *****************************************************************/
 156 int cx231xx_send_usb_command(struct cx231xx_i2c *i2c_bus,
 157                              struct cx231xx_i2c_xfer_data *req_data)
 158 {
 159         int status = 0;
 160         struct cx231xx *dev = i2c_bus->dev;
 161         struct VENDOR_REQUEST_IN ven_req;
 162
 163         u8 saddr_len = 0;
 164         u8 _i2c_period = 0;
 165         u8 _i2c_nostop = 0;
 166         u8 _i2c_reserve = 0;
 167
 168         if (dev->state & DEV_DISCONNECTED)
 169                 return -ENODEV;
 170
 171         /* Get the I2C period, nostop and reserve parameters */
 172         _i2c_period = i2c_bus->i2c_period;
 173         _i2c_nostop = i2c_bus->i2c_nostop;
 174         _i2c_reserve = i2c_bus->i2c_reserve;
 175
 176         saddr_len = req_data->saddr_len;
 177
 178         /* Set wValue */
 179         if (saddr_len == 1)     /* need check saddr_len == 0  */
 180                 ven_req.wValue =
 181                     req_data->
 182                     dev_addr << 9 | _i2c_period << 4 | saddr_len << 2 |
 183                     _i2c_nostop << 1 | I2C_SYNC | _i2c_reserve << 6;
 184         else
 185                 ven_req.wValue =
 186                     req_data->
 187                     dev_addr << 9 | _i2c_period << 4 | saddr_len << 2 |
 188                     _i2c_nostop << 1 | I2C_SYNC | _i2c_reserve << 6;
 189
 190         /* set channel number */
 191         if (req_data->direction & I2C_M_RD) {
 192                 /* channel number, for read,spec required channel_num +4 */
 193                 ven_req.bRequest = i2c_bus->nr + 4;
 194         } else
 195                 ven_req.bRequest = i2c_bus->nr; /* channel number,  */
 196
 197         /* set index value */
 198         switch (saddr_len) {
 199         case 0:
 200                 ven_req.wIndex = 0;     /* need check */
 201                 break;
 202         case 1:
 203                 ven_req.wIndex = (req_data->saddr_dat & 0xff);
 204                 break;
 205         case 2:
 206                 ven_req.wIndex = req_data->saddr_dat;
 207                 break;
 208         }
 209
 210         /* set wLength value */
 211         ven_req.wLength = req_data->buf_size;
 212
 213         /* set bData value */
 214         ven_req.bData = 0;
 215
 216         /* set the direction */
 217         if (req_data->direction) {
 218                 ven_req.direction = USB_DIR_IN;
 219                 memset(req_data->p_buffer, 0x00, ven_req.wLength);
 220         } else
 221                 ven_req.direction = USB_DIR_OUT;
 222
 223         /* set the buffer for read / write */
 224         ven_req.pBuff = req_data->p_buffer;
 225
 226
 227         /* call common vendor command request */
 228         status = cx231xx_send_vendor_cmd(dev, &ven_req);
 229         if (status < 0 && !dev->i2c_scan_running) {
 230                 dev_err(dev->dev, "%s: failed with status -%d\n",
 231                         __func__, status);
 232         }
 233
 234         return status;
 235 }
 236 EXPORT_SYMBOL_GPL(cx231xx_send_usb_command);
 237
 238 /*
 239  * Sends/Receives URB control messages, assuring to use a kalloced buffer
 240  * for all operations (dev->urb_buf), to avoid using stacked buffers, as
 241  * they aren't safe for usage with USB, due to DMA restrictions.
 242  * Also implements the debug code for control URB's.
 243  */
 244 static int __usb_control_msg(struct cx231xx *dev, unsigned int pipe,
 245         __u8 request, __u8 requesttype, __u16 value, __u16 index,
 246         void *data, __u16 size, int timeout)
 247 {
 248         int rc, i;
 249
 250         if (reg_debug) {
 251                 printk(KERN_DEBUG "%s: (pipe 0x%08x): "
 252                                 "%s:  %02x %02x %02x %02x %02x %02x %02x %02x ",
 253                                 dev->name,
 254                                 pipe,
 255                                 (requesttype & USB_DIR_IN) ? "IN" : "OUT",
 256                                 requesttype,
 257                                 request,
 258                                 value & 0xff, value >> 8,
 259                                 index & 0xff, index >> 8,
 260                                 size & 0xff, size >> 8);
 261                 if (!(requesttype & USB_DIR_IN)) {
 262                         printk(KERN_CONT ">>>");
 263                         for (i = 0; i < size; i++)
 264                                 printk(KERN_CONT " %02x",
 265                                        ((unsigned char *)data)[i]);
 266                 }
 267         }
 268
 269         /* Do the real call to usb_control_msg */
 270         mutex_lock(&dev->ctrl_urb_lock);
 271         if (!(requesttype & USB_DIR_IN) && size)
 272                 memcpy(dev->urb_buf, data, size);
 273         rc = usb_control_msg(dev->udev, pipe, request, requesttype, value,
 274                              index, dev->urb_buf, size, timeout);
 275         if ((requesttype & USB_DIR_IN) && size)
 276                 memcpy(data, dev->urb_buf, size);
 277         mutex_unlock(&dev->ctrl_urb_lock);
 278
 279         if (reg_debug) {
 280                 if (unlikely(rc < 0)) {
 281                         printk(KERN_CONT "FAILED!\n");
 282                         return rc;
 283                 }
 284
 285                 if ((requesttype & USB_DIR_IN)) {
 286                         printk(KERN_CONT "<<<");
 287                         for (i = 0; i < size; i++)
 288                                 printk(KERN_CONT " %02x",
 289                                        ((unsigned char *)data)[i]);
 290                 }
 291                 printk(KERN_CONT "\n");
 292         }
 293
 294         return rc;
 295 }
 296
 297
 298 /*
 299  * cx231xx_read_ctrl_reg()
 300  * reads data from the usb device specifying bRequest and wValue
 301  */
 302 int cx231xx_read_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg,
 303                           char *buf, int len)
 304 {
 305         u8 val = 0;
 306         int ret;
 307         int pipe = usb_rcvctrlpipe(dev->udev, 0);
 308
 309         if (dev->state & DEV_DISCONNECTED)
 310                 return -ENODEV;
 311
 312         if (len > URB_MAX_CTRL_SIZE)
 313                 return -EINVAL;
 314
 315         switch (len) {
 316         case 1:
 317                 val = ENABLE_ONE_BYTE;
 318                 break;
 319         case 2:
 320                 val = ENABLE_TWE_BYTE;
 321                 break;
 322         case 3:
 323                 val = ENABLE_THREE_BYTE;
 324                 break;
 325         case 4:
 326                 val = ENABLE_FOUR_BYTE;
 327                 break;
 328         default:
 329                 val = 0xFF;     /* invalid option */
 330         }
 331
 332         if (val == 0xFF)
 333                 return -EINVAL;
 334
 335         ret = __usb_control_msg(dev, pipe, req,
 336                               USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 337                               val, reg, buf, len, HZ);
 338         return ret;
 339 }
 340
 341 int cx231xx_send_vendor_cmd(struct cx231xx *dev,
 342                                 struct VENDOR_REQUEST_IN *ven_req)
 343 {
 344         int ret;
 345         int pipe = 0;
 346         int unsend_size = 0;
 347         u8 *pdata;
 348
 349         if (dev->state & DEV_DISCONNECTED)
 350                 return -ENODEV;
 351
 352         if ((ven_req->wLength > URB_MAX_CTRL_SIZE))
 353                 return -EINVAL;
 354
 355         if (ven_req->direction)
 356                 pipe = usb_rcvctrlpipe(dev->udev, 0);
 357         else
 358                 pipe = usb_sndctrlpipe(dev->udev, 0);
 359
 360         /*
 361          * If the cx23102 read more than 4 bytes with i2c bus,
 362          * need chop to 4 byte per request
 363          */
 364         if ((ven_req->wLength > 4) && ((ven_req->bRequest == 0x4) ||
 365                                         (ven_req->bRequest == 0x5) ||
 366                                         (ven_req->bRequest == 0x6))) {
 367                 unsend_size = 0;
 368                 pdata = ven_req->pBuff;
 369
 370
 371                 unsend_size = ven_req->wLength;
 372
 373                 /* the first package */
 374                 ven_req->wValue = ven_req->wValue & 0xFFFB;
 375                 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x2;
 376                 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
 377                         ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 378                         ven_req->wValue, ven_req->wIndex, pdata,
 379                         0x0004, HZ);
 380                 unsend_size = unsend_size - 4;
 381
 382                 /* the middle package */
 383                 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x42;
 384                 while (unsend_size - 4 > 0) {
 385                         pdata = pdata + 4;
 386                         ret = __usb_control_msg(dev, pipe,
 387                                 ven_req->bRequest,
 388                                 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 389                                 ven_req->wValue, ven_req->wIndex, pdata,
 390                                 0x0004, HZ);
 391                         unsend_size = unsend_size - 4;
 392                 }
 393
 394                 /* the last package */
 395                 ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x40;
 396                 pdata = pdata + 4;
 397                 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
 398                         ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 399                         ven_req->wValue, ven_req->wIndex, pdata,
 400                         unsend_size, HZ);
 401         } else {
 402                 ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
 403                                 ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 404                                 ven_req->wValue, ven_req->wIndex,
 405                                 ven_req->pBuff, ven_req->wLength, HZ);
 406         }
 407
 408         return ret;
 409 }
 410
 411 /*
 412  * cx231xx_write_ctrl_reg()
 413  * sends data to the usb device, specifying bRequest
 414  */
 415 int cx231xx_write_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg, char *buf,
 416                            int len)
 417 {
 418         u8 val = 0;
 419         int ret;
 420         int pipe = usb_sndctrlpipe(dev->udev, 0);
 421
 422         if (dev->state & DEV_DISCONNECTED)
 423                 return -ENODEV;
 424
 425         if ((len < 1) || (len > URB_MAX_CTRL_SIZE))
 426                 return -EINVAL;
 427
 428         switch (len) {
 429         case 1:
 430                 val = ENABLE_ONE_BYTE;
 431                 break;
 432         case 2:
 433                 val = ENABLE_TWE_BYTE;
 434                 break;
 435         case 3:
 436                 val = ENABLE_THREE_BYTE;
 437                 break;
 438         case 4:
 439                 val = ENABLE_FOUR_BYTE;
 440                 break;
 441         default:
 442                 val = 0xFF;     /* invalid option */
 443         }
 444
 445         if (val == 0xFF)
 446                 return -EINVAL;
 447
 448         if (reg_debug) {
 449                 int byte;
 450
 451                 cx231xx_isocdbg("(pipe 0x%08x): "
 452                         "OUT: %02x %02x %02x %02x %02x %02x %02x %02x >>>",
 453                         pipe,
 454                         USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 455                         req, 0, val, reg & 0xff,
 456                         reg >> 8, len & 0xff, len >> 8);
 457
 458                 for (byte = 0; byte < len; byte++)
 459                         cx231xx_isocdbg(" %02x", (unsigned char)buf[byte]);
 460                 cx231xx_isocdbg("\n");
 461         }
 462
 463         ret = __usb_control_msg(dev, pipe, req,
 464                               USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 465                               val, reg, buf, len, HZ);
 466
 467         return ret;
 468 }
 469
 470 /****************************************************************
 471 *           USB Alternate Setting functions                     *
 472 *****************************************************************/
 473
 474 int cx231xx_set_video_alternate(struct cx231xx *dev)
 475 {
 476         int errCode, prev_alt = dev->video_mode.alt;
 477         unsigned int min_pkt_size = dev->width * 2 + 4;
 478         u32 usb_interface_index = 0;
 479
 480         /* When image size is bigger than a certain value,
 481            the frame size should be increased, otherwise, only
 482            green screen will be received.
 483          */
 484         if (dev->width * 2 * dev->height > 720 * 240 * 2)
 485                 min_pkt_size *= 2;
 486
 487         if (dev->width > 360) {
 488                 /* resolutions: 720,704,640 */
 489                 dev->video_mode.alt = 3;
 490         } else if (dev->width > 180) {
 491                 /* resolutions: 360,352,320,240 */
 492                 dev->video_mode.alt = 2;
 493         } else if (dev->width > 0) {
 494                 /* resolutions: 180,176,160,128,88 */
 495                 dev->video_mode.alt = 1;
 496         } else {
 497                 /* Change to alt0 BULK to release USB bandwidth */
 498                 dev->video_mode.alt = 0;
 499         }
 500
 501         if (dev->USE_ISO == 0)
 502                 dev->video_mode.alt = 0;
 503
 504         cx231xx_coredbg("dev->video_mode.alt= %d\n", dev->video_mode.alt);
 505
 506         /* Get the correct video interface Index */
 507         usb_interface_index =
 508             dev->current_pcb_config.hs_config_info[0].interface_info.
 509             video_index + 1;
 510
 511         if (dev->video_mode.alt != prev_alt) {
 512                 cx231xx_coredbg("minimum isoc packet size: %u (alt=%d)\n",
 513                                 min_pkt_size, dev->video_mode.alt);
 514
 515                 if (dev->video_mode.alt_max_pkt_size != NULL)
 516                         dev->video_mode.max_pkt_size =
 517                         dev->video_mode.alt_max_pkt_size[dev->video_mode.alt];
 518                 cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u\n",
 519                                 dev->video_mode.alt,
 520                                 dev->video_mode.max_pkt_size);
 521                 errCode =
 522                     usb_set_interface(dev->udev, usb_interface_index,
 523                                       dev->video_mode.alt);
 524                 if (errCode < 0) {
 525                         dev_err(dev->dev,
 526                                 "cannot change alt number to %d (error=%i)\n",
 527                                 dev->video_mode.alt, errCode);
 528                         return errCode;
 529                 }
 530         }
 531         return 0;
 532 }
 533
 534 int cx231xx_set_alt_setting(struct cx231xx *dev, u8 index, u8 alt)
 535 {
 536         int status = 0;
 537         u32 usb_interface_index = 0;
 538         u32 max_pkt_size = 0;
 539
 540         switch (index) {
 541         case INDEX_TS1:
 542                 usb_interface_index =
 543                     dev->current_pcb_config.hs_config_info[0].interface_info.
 544                     ts1_index + 1;
 545                 dev->ts1_mode.alt = alt;
 546                 if (dev->ts1_mode.alt_max_pkt_size != NULL)
 547                         max_pkt_size = dev->ts1_mode.max_pkt_size =
 548                             dev->ts1_mode.alt_max_pkt_size[dev->ts1_mode.alt];
 549                 break;
 550         case INDEX_TS2:
 551                 usb_interface_index =
 552                     dev->current_pcb_config.hs_config_info[0].interface_info.
 553                     ts2_index + 1;
 554                 break;
 555         case INDEX_AUDIO:
 556                 usb_interface_index =
 557                     dev->current_pcb_config.hs_config_info[0].interface_info.
 558                     audio_index + 1;
 559                 dev->adev.alt = alt;
 560                 if (dev->adev.alt_max_pkt_size != NULL)
 561                         max_pkt_size = dev->adev.max_pkt_size =
 562                             dev->adev.alt_max_pkt_size[dev->adev.alt];
 563                 break;
 564         case INDEX_VIDEO:
 565                 usb_interface_index =
 566                     dev->current_pcb_config.hs_config_info[0].interface_info.
 567                     video_index + 1;
 568                 dev->video_mode.alt = alt;
 569                 if (dev->video_mode.alt_max_pkt_size != NULL)
 570                         max_pkt_size = dev->video_mode.max_pkt_size =
 571                             dev->video_mode.alt_max_pkt_size[dev->video_mode.
 572                                                              alt];
 573                 break;
 574         case INDEX_VANC:
 575                 if (dev->board.no_alt_vanc)
 576                         return 0;
 577                 usb_interface_index =
 578                     dev->current_pcb_config.hs_config_info[0].interface_info.
 579                     vanc_index + 1;
 580                 dev->vbi_mode.alt = alt;
 581                 if (dev->vbi_mode.alt_max_pkt_size != NULL)
 582                         max_pkt_size = dev->vbi_mode.max_pkt_size =
 583                             dev->vbi_mode.alt_max_pkt_size[dev->vbi_mode.alt];
 584                 break;
 585         case INDEX_HANC:
 586                 usb_interface_index =
 587                     dev->current_pcb_config.hs_config_info[0].interface_info.
 588                     hanc_index + 1;
 589                 dev->sliced_cc_mode.alt = alt;
 590                 if (dev->sliced_cc_mode.alt_max_pkt_size != NULL)
 591                         max_pkt_size = dev->sliced_cc_mode.max_pkt_size =
 592                             dev->sliced_cc_mode.alt_max_pkt_size[dev->
 593                                                                  sliced_cc_mode.
 594                                                                  alt];
 595                 break;
 596         default:
 597                 break;
 598         }
 599
 600         if (alt > 0 && max_pkt_size == 0) {
 601                 dev_err(dev->dev,
 602                         "can't change interface %d alt no. to %d: Max. Pkt size = 0\n",
 603                         usb_interface_index, alt);
 604                 /*To workaround error number=-71 on EP0 for videograbber,
 605                  need add following codes.*/
 606                 if (dev->board.no_alt_vanc)
 607                         return -1;
 608         }
 609
 610         cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u,"
 611                         "Interface = %d\n", alt, max_pkt_size,
 612                         usb_interface_index);
 613
 614         if (usb_interface_index > 0) {
 615                 status = usb_set_interface(dev->udev, usb_interface_index, alt);
 616                 if (status < 0) {
 617                         dev_err(dev->dev,
 618                                 "can't change interface %d alt no. to %d (err=%i)\n",
 619                                 usb_interface_index, alt, status);
 620                         return status;
 621                 }
 622         }
 623
 624         return status;
 625 }
 626 EXPORT_SYMBOL_GPL(cx231xx_set_alt_setting);
 627
 628 int cx231xx_gpio_set(struct cx231xx *dev, struct cx231xx_reg_seq *gpio)
 629 {
 630         int rc = 0;
 631
 632         if (!gpio)
 633                 return rc;
 634
 635         /* Send GPIO reset sequences specified at board entry */
 636         while (gpio->sleep >= 0) {
 637                 rc = cx231xx_set_gpio_value(dev, gpio->bit, gpio->val);
 638                 if (rc < 0)
 639                         return rc;
 640
 641                 if (gpio->sleep > 0)
 642                         msleep(gpio->sleep);
 643
 644                 gpio++;
 645         }
 646         return rc;
 647 }
 648
 649 int cx231xx_demod_reset(struct cx231xx *dev)
 650 {
 651
 652         u8 status = 0;
 653         u8 value[4] = { 0, 0, 0, 0 };
 654
 655         status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
 656                                  value, 4);
 657
 658         cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
 659                         value[0], value[1], value[2], value[3]);
 660
 661         cx231xx_coredbg("Enter cx231xx_demod_reset()\n");
 662
 663                 value[1] = (u8) 0x3;
 664                 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
 665                                                 PWR_CTL_EN, value, 4);
 666                         msleep(10);
 667
 668                 value[1] = (u8) 0x0;
 669                 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
 670                                                 PWR_CTL_EN, value, 4);
 671                         msleep(10);
 672
 673                 value[1] = (u8) 0x3;
 674                 status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
 675                                                 PWR_CTL_EN, value, 4);
 676                         msleep(10);
 677
 678
 679
 680         status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
 681                                  value, 4);
 682
 683         cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
 684                         value[0], value[1], value[2], value[3]);
 685
 686         return status;
 687 }
 688 EXPORT_SYMBOL_GPL(cx231xx_demod_reset);
 689 int is_fw_load(struct cx231xx *dev)
 690 {
 691         return cx231xx_check_fw(dev);
 692 }
 693 EXPORT_SYMBOL_GPL(is_fw_load);
 694
 695 int cx231xx_set_mode(struct cx231xx *dev, enum cx231xx_mode set_mode)
 696 {
 697         int errCode = 0;
 698
 699         if (dev->mode == set_mode)
 700                 return 0;
 701
 702         if (set_mode == CX231XX_SUSPEND) {
 703                 /* Set the chip in power saving mode */
 704                 dev->mode = set_mode;
 705         }
 706
 707         /* Resource is locked */
 708         if (dev->mode != CX231XX_SUSPEND)
 709                 return -EINVAL;
 710
 711         dev->mode = set_mode;
 712
 713         if (dev->mode == CX231XX_DIGITAL_MODE)/* Set Digital power mode */ {
 714         /* set AGC mode to Digital */
 715                 switch (dev->model) {
 716                 case CX231XX_BOARD_CNXT_CARRAERA:
 717                 case CX231XX_BOARD_CNXT_RDE_250:
 718                 case CX231XX_BOARD_CNXT_SHELBY:
 719                 case CX231XX_BOARD_CNXT_RDU_250:
 720                 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
 721                         break;
 722                 case CX231XX_BOARD_CNXT_RDE_253S:
 723                 case CX231XX_BOARD_CNXT_RDU_253S:
 724                         errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
 725                         break;
 726                 case CX231XX_BOARD_HAUPPAUGE_EXETER:
 727                 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
 728                         errCode = cx231xx_set_power_mode(dev,
 729                                                 POLARIS_AVMODE_DIGITAL);
 730                         break;
 731                 default:
 732                         break;
 733                 }
 734         } else/* Set Analog Power mode */ {
 735         /* set AGC mode to Analog */
 736                 switch (dev->model) {
 737                 case CX231XX_BOARD_CNXT_CARRAERA:
 738                 case CX231XX_BOARD_CNXT_RDE_250:
 739                 case CX231XX_BOARD_CNXT_SHELBY:
 740                 case CX231XX_BOARD_CNXT_RDU_250:
 741                 errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
 742                         break;
 743                 case CX231XX_BOARD_CNXT_RDE_253S:
 744                 case CX231XX_BOARD_CNXT_RDU_253S:
 745                 case CX231XX_BOARD_HAUPPAUGE_EXETER:
 746                 case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
 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                 return -ENOMEM;
 770         memcpy(&buffer[0], firmware, 4096);
 771
 772         ret = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 5),
 773                         buffer, 4096, &actlen, 2000);
 774
 775         if (ret)
 776                 dev_err(dev->dev,
 777                         "bulk message failed: %d (%d/%d)", ret,
 778                         size, actlen);
 779         else {
 780                 errCode = actlen != size ? -1 : 0;
 781         }
 782         kfree(buffer);
 783         return errCode;
 784 }
 785
 786 /*****************************************************************
 787 *                URB Streaming functions                         *
 788 ******************************************************************/
 789
 790 /*
 791  * IRQ callback, called by URB callback
 792  */
 793 static void cx231xx_isoc_irq_callback(struct urb *urb)
 794 {
 795         struct cx231xx_dmaqueue *dma_q = urb->context;
 796         struct cx231xx_video_mode *vmode =
 797             container_of(dma_q, struct cx231xx_video_mode, vidq);
 798         struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
 799         int i;
 800
 801         switch (urb->status) {
 802         case 0:         /* success */
 803         case -ETIMEDOUT:        /* NAK */
 804                 break;
 805         case -ECONNRESET:       /* kill */
 806         case -ENOENT:
 807         case -ESHUTDOWN:
 808                 return;
 809         default:                /* error */
 810                 cx231xx_isocdbg("urb completition error %d.\n", urb->status);
 811                 break;
 812         }
 813
 814         /* Copy data from URB */
 815         spin_lock(&dev->video_mode.slock);
 816         dev->video_mode.isoc_ctl.isoc_copy(dev, urb);
 817         spin_unlock(&dev->video_mode.slock);
 818
 819         /* Reset urb buffers */
 820         for (i = 0; i < urb->number_of_packets; i++) {
 821                 urb->iso_frame_desc[i].status = 0;
 822                 urb->iso_frame_desc[i].actual_length = 0;
 823         }
 824
 825         urb->status = usb_submit_urb(urb, GFP_ATOMIC);
 826         if (urb->status) {
 827                 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
 828                                 urb->status);
 829         }
 830 }
 831 /*****************************************************************
 832 *                URB Streaming functions                         *
 833 ******************************************************************/
 834
 835 /*
 836  * IRQ callback, called by URB callback
 837  */
 838 static void cx231xx_bulk_irq_callback(struct urb *urb)
 839 {
 840         struct cx231xx_dmaqueue *dma_q = urb->context;
 841         struct cx231xx_video_mode *vmode =
 842             container_of(dma_q, struct cx231xx_video_mode, vidq);
 843         struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
 844
 845         switch (urb->status) {
 846         case 0:         /* success */
 847         case -ETIMEDOUT:        /* NAK */
 848                 break;
 849         case -ECONNRESET:       /* kill */
 850         case -ENOENT:
 851         case -ESHUTDOWN:
 852                 return;
 853         default:                /* error */
 854                 cx231xx_isocdbg("urb completition error %d.\n", urb->status);
 855                 break;
 856         }
 857
 858         /* Copy data from URB */
 859         spin_lock(&dev->video_mode.slock);
 860         dev->video_mode.bulk_ctl.bulk_copy(dev, urb);
 861         spin_unlock(&dev->video_mode.slock);
 862
 863         /* Reset urb buffers */
 864         urb->status = usb_submit_urb(urb, GFP_ATOMIC);
 865         if (urb->status) {
 866                 cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
 867                                 urb->status);
 868         }
 869 }
 870 /*
 871  * Stop and Deallocate URBs
 872  */
 873 void cx231xx_uninit_isoc(struct cx231xx *dev)
 874 {
 875         struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
 876         struct urb *urb;
 877         int i;
 878
 879         cx231xx_isocdbg("cx231xx: called cx231xx_uninit_isoc\n");
 880
 881         dev->video_mode.isoc_ctl.nfields = -1;
 882         for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
 883                 urb = dev->video_mode.isoc_ctl.urb[i];
 884                 if (urb) {
 885                         if (!irqs_disabled())
 886                                 usb_kill_urb(urb);
 887                         else
 888                                 usb_unlink_urb(urb);
 889
 890                         if (dev->video_mode.isoc_ctl.transfer_buffer[i]) {
 891                                 usb_free_coherent(dev->udev,
 892                                                   urb->transfer_buffer_length,
 893                                                   dev->video_mode.isoc_ctl.
 894                                                   transfer_buffer[i],
 895                                                   urb->transfer_dma);
 896                         }
 897                         usb_free_urb(urb);
 898                         dev->video_mode.isoc_ctl.urb[i] = NULL;
 899                 }
 900                 dev->video_mode.isoc_ctl.transfer_buffer[i] = NULL;
 901         }
 902
 903         kfree(dev->video_mode.isoc_ctl.urb);
 904         kfree(dev->video_mode.isoc_ctl.transfer_buffer);
 905         kfree(dma_q->p_left_data);
 906
 907         dev->video_mode.isoc_ctl.urb = NULL;
 908         dev->video_mode.isoc_ctl.transfer_buffer = NULL;
 909         dev->video_mode.isoc_ctl.num_bufs = 0;
 910         dma_q->p_left_data = NULL;
 911
 912         if (dev->mode_tv == 0)
 913                 cx231xx_capture_start(dev, 0, Raw_Video);
 914         else
 915                 cx231xx_capture_start(dev, 0, TS1_serial_mode);
 916
 917
 918 }
 919 EXPORT_SYMBOL_GPL(cx231xx_uninit_isoc);
 920
 921 /*
 922  * Stop and Deallocate URBs
 923  */
 924 void cx231xx_uninit_bulk(struct cx231xx *dev)
 925 {
 926         struct urb *urb;
 927         int i;
 928
 929         cx231xx_isocdbg("cx231xx: called cx231xx_uninit_bulk\n");
 930
 931         dev->video_mode.bulk_ctl.nfields = -1;
 932         for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
 933                 urb = dev->video_mode.bulk_ctl.urb[i];
 934                 if (urb) {
 935                         if (!irqs_disabled())
 936                                 usb_kill_urb(urb);
 937                         else
 938                                 usb_unlink_urb(urb);
 939
 940                         if (dev->video_mode.bulk_ctl.transfer_buffer[i]) {
 941                                 usb_free_coherent(dev->udev,
 942                                                 urb->transfer_buffer_length,
 943                                                 dev->video_mode.isoc_ctl.
 944                                                 transfer_buffer[i],
 945                                                 urb->transfer_dma);
 946                         }
 947                         usb_free_urb(urb);
 948                         dev->video_mode.bulk_ctl.urb[i] = NULL;
 949                 }
 950                 dev->video_mode.bulk_ctl.transfer_buffer[i] = NULL;
 951         }
 952
 953         kfree(dev->video_mode.bulk_ctl.urb);
 954         kfree(dev->video_mode.bulk_ctl.transfer_buffer);
 955
 956         dev->video_mode.bulk_ctl.urb = NULL;
 957         dev->video_mode.bulk_ctl.transfer_buffer = NULL;
 958         dev->video_mode.bulk_ctl.num_bufs = 0;
 959
 960         if (dev->mode_tv == 0)
 961                 cx231xx_capture_start(dev, 0, Raw_Video);
 962         else
 963                 cx231xx_capture_start(dev, 0, TS1_serial_mode);
 964
 965
 966 }
 967 EXPORT_SYMBOL_GPL(cx231xx_uninit_bulk);
 968
 969 /*
 970  * Allocate URBs and start IRQ
 971  */
 972 int cx231xx_init_isoc(struct cx231xx *dev, int max_packets,
 973                       int num_bufs, int max_pkt_size,
 974                       int (*isoc_copy) (struct cx231xx *dev, struct urb *urb))
 975 {
 976         struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
 977         int i;
 978         int sb_size, pipe;
 979         struct urb *urb;
 980         int j, k;
 981         int rc;
 982
 983         /* De-allocates all pending stuff */
 984         cx231xx_uninit_isoc(dev);
 985
 986         dma_q->p_left_data = kzalloc(4096, GFP_KERNEL);
 987         if (dma_q->p_left_data == NULL)
 988                 return -ENOMEM;
 989
 990         dev->video_mode.isoc_ctl.isoc_copy = isoc_copy;
 991         dev->video_mode.isoc_ctl.num_bufs = num_bufs;
 992         dma_q->pos = 0;
 993         dma_q->is_partial_line = 0;
 994         dma_q->last_sav = 0;
 995         dma_q->current_field = -1;
 996         dma_q->field1_done = 0;
 997         dma_q->lines_per_field = dev->height / 2;
 998         dma_q->bytes_left_in_line = dev->width << 1;
 999         dma_q->lines_completed = 0;
1000         dma_q->mpeg_buffer_done = 0;
1001         dma_q->left_data_count = 0;
1002         dma_q->mpeg_buffer_completed = 0;
1003         dma_q->add_ps_package_head = CX231XX_NEED_ADD_PS_PACKAGE_HEAD;
1004         dma_q->ps_head[0] = 0x00;
1005         dma_q->ps_head[1] = 0x00;
1006         dma_q->ps_head[2] = 0x01;
1007         dma_q->ps_head[3] = 0xBA;
1008         for (i = 0; i < 8; i++)
1009                 dma_q->partial_buf[i] = 0;
1010
1011         dev->video_mode.isoc_ctl.urb =
1012             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1013         if (!dev->video_mode.isoc_ctl.urb) {
1014                 dev_err(dev->dev,
1015                         "cannot alloc memory for usb buffers\n");
1016                 return -ENOMEM;
1017         }
1018
1019         dev->video_mode.isoc_ctl.transfer_buffer =
1020             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1021         if (!dev->video_mode.isoc_ctl.transfer_buffer) {
1022                 dev_err(dev->dev,
1023                         "cannot allocate memory for usbtransfer\n");
1024                 kfree(dev->video_mode.isoc_ctl.urb);
1025                 return -ENOMEM;
1026         }
1027
1028         dev->video_mode.isoc_ctl.max_pkt_size = max_pkt_size;
1029         dev->video_mode.isoc_ctl.buf = NULL;
1030
1031         sb_size = max_packets * dev->video_mode.isoc_ctl.max_pkt_size;
1032
1033         if (dev->mode_tv == 1)
1034                 dev->video_mode.end_point_addr = 0x81;
1035         else
1036                 dev->video_mode.end_point_addr = 0x84;
1037
1038
1039         /* allocate urbs and transfer buffers */
1040         for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1041                 urb = usb_alloc_urb(max_packets, GFP_KERNEL);
1042                 if (!urb) {
1043                         dev_err(dev->dev,
1044                                 "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                         dev_err(dev->dev,
1055                                 "unable to allocate %i bytes for transfer 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 | URB_NO_TRANSFER_DMA_MAP;
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                         dev_err(dev->dev,
1090                                 "submit of urb %i failed (error=%i)\n", i,
1091                                 rc);
1092                         cx231xx_uninit_isoc(dev);
1093                         return rc;
1094                 }
1095         }
1096
1097         if (dev->mode_tv == 0)
1098                 cx231xx_capture_start(dev, 1, Raw_Video);
1099         else
1100                 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1101
1102         return 0;
1103 }
1104 EXPORT_SYMBOL_GPL(cx231xx_init_isoc);
1105
1106 /*
1107  * Allocate URBs and start IRQ
1108  */
1109 int cx231xx_init_bulk(struct cx231xx *dev, int max_packets,
1110                       int num_bufs, int max_pkt_size,
1111                       int (*bulk_copy) (struct cx231xx *dev, struct urb *urb))
1112 {
1113         struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
1114         int i;
1115         int sb_size, pipe;
1116         struct urb *urb;
1117         int rc;
1118
1119         dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
1120
1121         cx231xx_coredbg("Setting Video mux to %d\n", dev->video_input);
1122
1123         video_mux(dev, dev->video_input);
1124
1125         /* De-allocates all pending stuff */
1126         cx231xx_uninit_bulk(dev);
1127
1128         dev->video_mode.bulk_ctl.bulk_copy = bulk_copy;
1129         dev->video_mode.bulk_ctl.num_bufs = num_bufs;
1130         dma_q->pos = 0;
1131         dma_q->is_partial_line = 0;
1132         dma_q->last_sav = 0;
1133         dma_q->current_field = -1;
1134         dma_q->field1_done = 0;
1135         dma_q->lines_per_field = dev->height / 2;
1136         dma_q->bytes_left_in_line = dev->width << 1;
1137         dma_q->lines_completed = 0;
1138         dma_q->mpeg_buffer_done = 0;
1139         dma_q->left_data_count = 0;
1140         dma_q->mpeg_buffer_completed = 0;
1141         dma_q->ps_head[0] = 0x00;
1142         dma_q->ps_head[1] = 0x00;
1143         dma_q->ps_head[2] = 0x01;
1144         dma_q->ps_head[3] = 0xBA;
1145         for (i = 0; i < 8; i++)
1146                 dma_q->partial_buf[i] = 0;
1147
1148         dev->video_mode.bulk_ctl.urb =
1149             kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
1150         if (!dev->video_mode.bulk_ctl.urb) {
1151                 dev_err(dev->dev,
1152                         "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                 dev_err(dev->dev,
1160                         "cannot allocate memory for usbtransfer\n");
1161                 kfree(dev->video_mode.bulk_ctl.urb);
1162                 return -ENOMEM;
1163         }
1164
1165         dev->video_mode.bulk_ctl.max_pkt_size = max_pkt_size;
1166         dev->video_mode.bulk_ctl.buf = NULL;
1167
1168         sb_size = max_packets * dev->video_mode.bulk_ctl.max_pkt_size;
1169
1170         if (dev->mode_tv == 1)
1171                 dev->video_mode.end_point_addr = 0x81;
1172         else
1173                 dev->video_mode.end_point_addr = 0x84;
1174
1175
1176         /* allocate urbs and transfer buffers */
1177         for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1178                 urb = usb_alloc_urb(0, GFP_KERNEL);
1179                 if (!urb) {
1180                         dev_err(dev->dev,
1181                                 "cannot alloc bulk_ctl.urb %i\n", i);
1182                         cx231xx_uninit_bulk(dev);
1183                         return -ENOMEM;
1184                 }
1185                 dev->video_mode.bulk_ctl.urb[i] = urb;
1186                 urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
1187
1188                 dev->video_mode.bulk_ctl.transfer_buffer[i] =
1189                     usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1190                                      &urb->transfer_dma);
1191                 if (!dev->video_mode.bulk_ctl.transfer_buffer[i]) {
1192                         dev_err(dev->dev,
1193                                 "unable to allocate %i bytes for transfer buffer %i%s\n",
1194                                 sb_size, i,
1195                                 in_interrupt() ? " while in int" : "");
1196                         cx231xx_uninit_bulk(dev);
1197                         return -ENOMEM;
1198                 }
1199                 memset(dev->video_mode.bulk_ctl.transfer_buffer[i], 0, sb_size);
1200
1201                 pipe = usb_rcvbulkpipe(dev->udev,
1202                                  dev->video_mode.end_point_addr);
1203                 usb_fill_bulk_urb(urb, dev->udev, pipe,
1204                                   dev->video_mode.bulk_ctl.transfer_buffer[i],
1205                                   sb_size, cx231xx_bulk_irq_callback, dma_q);
1206         }
1207
1208         init_waitqueue_head(&dma_q->wq);
1209
1210         /* submit urbs and enables IRQ */
1211         for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1212                 rc = usb_submit_urb(dev->video_mode.bulk_ctl.urb[i],
1213                                     GFP_ATOMIC);
1214                 if (rc) {
1215                         dev_err(dev->dev,
1216                                 "submit of urb %i failed (error=%i)\n", i, rc);
1217                         cx231xx_uninit_bulk(dev);
1218                         return rc;
1219                 }
1220         }
1221
1222         if (dev->mode_tv == 0)
1223                 cx231xx_capture_start(dev, 1, Raw_Video);
1224         else
1225                 cx231xx_capture_start(dev, 1, TS1_serial_mode);
1226
1227         return 0;
1228 }
1229 EXPORT_SYMBOL_GPL(cx231xx_init_bulk);
1230 void cx231xx_stop_TS1(struct cx231xx *dev)
1231 {
1232         u8 val[4] = { 0, 0, 0, 0 };
1233
1234         val[0] = 0x00;
1235         val[1] = 0x03;
1236         val[2] = 0x00;
1237         val[3] = 0x00;
1238         cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1239                         TS_MODE_REG, val, 4);
1240
1241         val[0] = 0x00;
1242         val[1] = 0x70;
1243         val[2] = 0x04;
1244         val[3] = 0x00;
1245         cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1246                         TS1_CFG_REG, val, 4);
1247 }
1248 /* EXPORT_SYMBOL_GPL(cx231xx_stop_TS1); */
1249 void cx231xx_start_TS1(struct cx231xx *dev)
1250 {
1251         u8 val[4] = { 0, 0, 0, 0 };
1252
1253         val[0] = 0x03;
1254         val[1] = 0x03;
1255         val[2] = 0x00;
1256         val[3] = 0x00;
1257         cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1258                         TS_MODE_REG, val, 4);
1259
1260         val[0] = 0x04;
1261         val[1] = 0xA3;
1262         val[2] = 0x3B;
1263         val[3] = 0x00;
1264         cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1265                         TS1_CFG_REG, val, 4);
1266 }
1267 /* EXPORT_SYMBOL_GPL(cx231xx_start_TS1); */
1268 /*****************************************************************
1269 *             Device Init/UnInit functions                       *
1270 ******************************************************************/
1271 int cx231xx_dev_init(struct cx231xx *dev)
1272 {
1273         int errCode = 0;
1274
1275         /* Initialize I2C bus */
1276
1277         /* External Master 1 Bus */
1278         dev->i2c_bus[0].nr = 0;
1279         dev->i2c_bus[0].dev = dev;
1280         dev->i2c_bus[0].i2c_period = I2C_SPEED_100K;    /* 100 KHz */
1281         dev->i2c_bus[0].i2c_nostop = 0;
1282         dev->i2c_bus[0].i2c_reserve = 0;
1283
1284         /* External Master 2 Bus */
1285         dev->i2c_bus[1].nr = 1;
1286         dev->i2c_bus[1].dev = dev;
1287         dev->i2c_bus[1].i2c_period = I2C_SPEED_100K;    /* 100 KHz */
1288         dev->i2c_bus[1].i2c_nostop = 0;
1289         dev->i2c_bus[1].i2c_reserve = 0;
1290
1291         /* Internal Master 3 Bus */
1292         dev->i2c_bus[2].nr = 2;
1293         dev->i2c_bus[2].dev = dev;
1294         dev->i2c_bus[2].i2c_period = I2C_SPEED_100K;    /* 100kHz */
1295         dev->i2c_bus[2].i2c_nostop = 0;
1296         dev->i2c_bus[2].i2c_reserve = 0;
1297
1298         /* register I2C buses */
1299         cx231xx_i2c_register(&dev->i2c_bus[0]);
1300         cx231xx_i2c_register(&dev->i2c_bus[1]);
1301         cx231xx_i2c_register(&dev->i2c_bus[2]);
1302
1303         cx231xx_i2c_mux_register(dev, 0);
1304         cx231xx_i2c_mux_register(dev, 1);
1305
1306         /* scan the real bus segments in the order of physical port numbers */
1307         cx231xx_do_i2c_scan(dev, I2C_0);
1308         cx231xx_do_i2c_scan(dev, I2C_1_MUX_1);
1309         cx231xx_do_i2c_scan(dev, I2C_2);
1310         cx231xx_do_i2c_scan(dev, I2C_1_MUX_3);
1311
1312         /* init hardware */
1313         /* Note : with out calling set power mode function,
1314         afe can not be set up correctly */
1315         if (dev->board.external_av) {
1316                 errCode = cx231xx_set_power_mode(dev,
1317                                  POLARIS_AVMODE_ENXTERNAL_AV);
1318                 if (errCode < 0) {
1319                         dev_err(dev->dev,
1320                                 "%s: Failed to set Power - errCode [%d]!\n",
1321                                 __func__, errCode);
1322                         return errCode;
1323                 }
1324         } else {
1325                 errCode = cx231xx_set_power_mode(dev,
1326                                  POLARIS_AVMODE_ANALOGT_TV);
1327                 if (errCode < 0) {
1328                         dev_err(dev->dev,
1329                                 "%s: Failed to set Power - errCode [%d]!\n",
1330                                 __func__, errCode);
1331                         return errCode;
1332                 }
1333         }
1334
1335         /* reset the Tuner, if it is a Xceive tuner */
1336         if ((dev->board.tuner_type == TUNER_XC5000) ||
1337             (dev->board.tuner_type == TUNER_XC2028))
1338                         cx231xx_gpio_set(dev, dev->board.tuner_gpio);
1339
1340         /* initialize Colibri block */
1341         errCode = cx231xx_afe_init_super_block(dev, 0x23c);
1342         if (errCode < 0) {
1343                 dev_err(dev->dev,
1344                         "%s: cx231xx_afe init super block - errCode [%d]!\n",
1345                         __func__, errCode);
1346                 return errCode;
1347         }
1348         errCode = cx231xx_afe_init_channels(dev);
1349         if (errCode < 0) {
1350                 dev_err(dev->dev,
1351                         "%s: cx231xx_afe init channels - errCode [%d]!\n",
1352                         __func__, errCode);
1353                 return errCode;
1354         }
1355
1356         /* Set DIF in By pass mode */
1357         errCode = cx231xx_dif_set_standard(dev, DIF_USE_BASEBAND);
1358         if (errCode < 0) {
1359                 dev_err(dev->dev,
1360                         "%s: cx231xx_dif set to By pass mode - errCode [%d]!\n",
1361                         __func__, errCode);
1362                 return errCode;
1363         }
1364
1365         /* I2S block related functions */
1366         errCode = cx231xx_i2s_blk_initialize(dev);
1367         if (errCode < 0) {
1368                 dev_err(dev->dev,
1369                         "%s: cx231xx_i2s block initialize - errCode [%d]!\n",
1370                         __func__, errCode);
1371                 return errCode;
1372         }
1373
1374         /* init control pins */
1375         errCode = cx231xx_init_ctrl_pin_status(dev);
1376         if (errCode < 0) {
1377                 dev_err(dev->dev,
1378                         "%s: cx231xx_init ctrl pins - errCode [%d]!\n",
1379                         __func__, errCode);
1380                 return errCode;
1381         }
1382
1383         /* set AGC mode to Analog */
1384         switch (dev->model) {
1385         case CX231XX_BOARD_CNXT_CARRAERA:
1386         case CX231XX_BOARD_CNXT_RDE_250:
1387         case CX231XX_BOARD_CNXT_SHELBY:
1388         case CX231XX_BOARD_CNXT_RDU_250:
1389         errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
1390                 break;
1391         case CX231XX_BOARD_CNXT_RDE_253S:
1392         case CX231XX_BOARD_CNXT_RDU_253S:
1393         case CX231XX_BOARD_HAUPPAUGE_EXETER:
1394         case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
1395         case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
1396         case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
1397         case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
1398         errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
1399                 break;
1400         default:
1401                 break;
1402         }
1403         if (errCode < 0) {
1404                 dev_err(dev->dev,
1405                         "%s: cx231xx_AGC mode to Analog - errCode [%d]!\n",
1406                         __func__, errCode);
1407                 return errCode;
1408         }
1409
1410         /* set all alternate settings to zero initially */
1411         cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
1412         cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1413         cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
1414         if (dev->board.has_dvb)
1415                 cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
1416
1417         errCode = 0;
1418         return errCode;
1419 }
1420 EXPORT_SYMBOL_GPL(cx231xx_dev_init);
1421
1422 void cx231xx_dev_uninit(struct cx231xx *dev)
1423 {
1424         /* Un Initialize I2C bus */
1425         cx231xx_i2c_mux_unregister(dev, 1);
1426         cx231xx_i2c_mux_unregister(dev, 0);
1427         cx231xx_i2c_unregister(&dev->i2c_bus[2]);
1428         cx231xx_i2c_unregister(&dev->i2c_bus[1]);
1429         cx231xx_i2c_unregister(&dev->i2c_bus[0]);
1430 }
1431 EXPORT_SYMBOL_GPL(cx231xx_dev_uninit);
1432
1433 /*****************************************************************
1434 *              G P I O related functions                         *
1435 ******************************************************************/
1436 int cx231xx_send_gpio_cmd(struct cx231xx *dev, u32 gpio_bit, u8 *gpio_val,
1437                           u8 len, u8 request, u8 direction)
1438 {
1439         int status = 0;
1440         struct VENDOR_REQUEST_IN ven_req;
1441
1442         /* Set wValue */
1443         ven_req.wValue = (u16) (gpio_bit >> 16 & 0xffff);
1444
1445         /* set request */
1446         if (!request) {
1447                 if (direction)
1448                         ven_req.bRequest = VRT_GET_GPIO;        /* 0x8 gpio */
1449                 else
1450                         ven_req.bRequest = VRT_SET_GPIO;        /* 0x9 gpio */
1451         } else {
1452                 if (direction)
1453                         ven_req.bRequest = VRT_GET_GPIE;        /* 0xa gpie */
1454                 else
1455                         ven_req.bRequest = VRT_SET_GPIE;        /* 0xb gpie */
1456         }
1457
1458         /* set index value */
1459         ven_req.wIndex = (u16) (gpio_bit & 0xffff);
1460
1461         /* set wLength value */
1462         ven_req.wLength = len;
1463
1464         /* set bData value */
1465         ven_req.bData = 0;
1466
1467         /* set the buffer for read / write */
1468         ven_req.pBuff = gpio_val;
1469
1470         /* set the direction */
1471         if (direction) {
1472                 ven_req.direction = USB_DIR_IN;
1473                 memset(ven_req.pBuff, 0x00, ven_req.wLength);
1474         } else
1475                 ven_req.direction = USB_DIR_OUT;
1476
1477
1478         /* call common vendor command request */
1479         status = cx231xx_send_vendor_cmd(dev, &ven_req);
1480         if (status < 0) {
1481                 dev_err(dev->dev, "%s: failed with status -%d\n",
1482                         __func__, status);
1483         }
1484
1485         return status;
1486 }
1487 EXPORT_SYMBOL_GPL(cx231xx_send_gpio_cmd);
1488
1489 /*****************************************************************
1490  *    C O N T R O L - Register R E A D / W R I T E functions     *
1491  *****************************************************************/
1492 int cx231xx_mode_register(struct cx231xx *dev, u16 address, u32 mode)
1493 {
1494         u8 value[4] = { 0x0, 0x0, 0x0, 0x0 };
1495         u32 tmp = 0;
1496         int status = 0;
1497
1498         status =
1499             cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, address, value, 4);
1500         if (status < 0)
1501                 return status;
1502
1503         tmp = le32_to_cpu(*((__le32 *) value));
1504         tmp |= mode;
1505
1506         value[0] = (u8) tmp;
1507         value[1] = (u8) (tmp >> 8);
1508         value[2] = (u8) (tmp >> 16);
1509         value[3] = (u8) (tmp >> 24);
1510
1511         status =
1512             cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, address, value, 4);
1513
1514         return status;
1515 }
1516
1517 /*****************************************************************
1518  *            I 2 C Internal C O N T R O L   functions           *
1519  *****************************************************************/
1520 int cx231xx_read_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1521                           u8 saddr_len, u32 *data, u8 data_len, int master)
1522 {
1523         int status = 0;
1524         struct cx231xx_i2c_xfer_data req_data;
1525         u8 value[64] = "0";
1526
1527         if (saddr_len == 0)
1528                 saddr = 0;
1529         else if (saddr_len == 1)
1530                 saddr &= 0xff;
1531
1532         /* prepare xfer_data struct */
1533         req_data.dev_addr = dev_addr >> 1;
1534         req_data.direction = I2C_M_RD;
1535         req_data.saddr_len = saddr_len;
1536         req_data.saddr_dat = saddr;
1537         req_data.buf_size = data_len;
1538         req_data.p_buffer = (u8 *) value;
1539
1540         /* usb send command */
1541         if (master == 0)
1542                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1543                                          &req_data);
1544         else if (master == 1)
1545                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1546                                          &req_data);
1547         else if (master == 2)
1548                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1549                                          &req_data);
1550
1551         if (status >= 0) {
1552                 /* Copy the data read back to main buffer */
1553                 if (data_len == 1)
1554                         *data = value[0];
1555                 else if (data_len == 4)
1556                         *data =
1557                             value[0] | value[1] << 8 | value[2] << 16 | value[3]
1558                             << 24;
1559                 else if (data_len > 4)
1560                         *data = value[saddr];
1561         }
1562
1563         return status;
1564 }
1565
1566 int cx231xx_write_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1567                            u8 saddr_len, u32 data, u8 data_len, int master)
1568 {
1569         int status = 0;
1570         u8 value[4] = { 0, 0, 0, 0 };
1571         struct cx231xx_i2c_xfer_data req_data;
1572
1573         value[0] = (u8) data;
1574         value[1] = (u8) (data >> 8);
1575         value[2] = (u8) (data >> 16);
1576         value[3] = (u8) (data >> 24);
1577
1578         if (saddr_len == 0)
1579                 saddr = 0;
1580         else if (saddr_len == 1)
1581                 saddr &= 0xff;
1582
1583         /* prepare xfer_data struct */
1584         req_data.dev_addr = dev_addr >> 1;
1585         req_data.direction = 0;
1586         req_data.saddr_len = saddr_len;
1587         req_data.saddr_dat = saddr;
1588         req_data.buf_size = data_len;
1589         req_data.p_buffer = value;
1590
1591         /* usb send command */
1592         if (master == 0)
1593                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1594                                  &req_data);
1595         else if (master == 1)
1596                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1597                                  &req_data);
1598         else if (master == 2)
1599                 status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1600                                  &req_data);
1601
1602         return status;
1603 }
1604
1605 int cx231xx_read_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1606                           u8 saddr_len, u32 *data, u8 data_len)
1607 {
1608         int status = 0;
1609         struct cx231xx_i2c_xfer_data req_data;
1610         u8 value[4] = { 0, 0, 0, 0 };
1611
1612         if (saddr_len == 0)
1613                 saddr = 0;
1614         else if (saddr_len == 1)
1615                 saddr &= 0xff;
1616
1617         /* prepare xfer_data struct */
1618         req_data.dev_addr = dev_addr >> 1;
1619         req_data.direction = I2C_M_RD;
1620         req_data.saddr_len = saddr_len;
1621         req_data.saddr_dat = saddr;
1622         req_data.buf_size = data_len;
1623         req_data.p_buffer = (u8 *) value;
1624
1625         /* usb send command */
1626         status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1627
1628         if (status >= 0) {
1629                 /* Copy the data read back to main buffer */
1630                 if (data_len == 1)
1631                         *data = value[0];
1632                 else
1633                         *data =
1634                             value[0] | value[1] << 8 | value[2] << 16 | value[3]
1635                             << 24;
1636         }
1637
1638         return status;
1639 }
1640
1641 int cx231xx_write_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1642                            u8 saddr_len, u32 data, u8 data_len)
1643 {
1644         int status = 0;
1645         u8 value[4] = { 0, 0, 0, 0 };
1646         struct cx231xx_i2c_xfer_data req_data;
1647
1648         value[0] = (u8) data;
1649         value[1] = (u8) (data >> 8);
1650         value[2] = (u8) (data >> 16);
1651         value[3] = (u8) (data >> 24);
1652
1653         if (saddr_len == 0)
1654                 saddr = 0;
1655         else if (saddr_len == 1)
1656                 saddr &= 0xff;
1657
1658         /* prepare xfer_data struct */
1659         req_data.dev_addr = dev_addr >> 1;
1660         req_data.direction = 0;
1661         req_data.saddr_len = saddr_len;
1662         req_data.saddr_dat = saddr;
1663         req_data.buf_size = data_len;
1664         req_data.p_buffer = value;
1665
1666         /* usb send command */
1667         status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1668
1669         return status;
1670 }
1671
1672 int cx231xx_reg_mask_write(struct cx231xx *dev, u8 dev_addr, u8 size,
1673                            u16 register_address, u8 bit_start, u8 bit_end,
1674                            u32 value)
1675 {
1676         int status = 0;
1677         u32 tmp;
1678         u32 mask = 0;
1679         int i;
1680
1681         if (bit_start > (size - 1) || bit_end > (size - 1))
1682                 return -1;
1683
1684         if (size == 8) {
1685                 status =
1686                     cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1687                                           &tmp, 1);
1688         } else {
1689                 status =
1690                     cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1691                                           &tmp, 4);
1692         }
1693
1694         if (status < 0)
1695                 return status;
1696
1697         mask = 1 << bit_end;
1698         for (i = bit_end; i > bit_start && i > 0; i--)
1699                 mask = mask + (1 << (i - 1));
1700
1701         value <<= bit_start;
1702
1703         if (size == 8) {
1704                 tmp &= ~mask;
1705                 tmp |= value;
1706                 tmp &= 0xff;
1707                 status =
1708                     cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1709                                            tmp, 1);
1710         } else {
1711                 tmp &= ~mask;
1712                 tmp |= value;
1713                 status =
1714                     cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1715                                            tmp, 4);
1716         }
1717
1718         return status;
1719 }
1720
1721 int cx231xx_read_modify_write_i2c_dword(struct cx231xx *dev, u8 dev_addr,
1722                                         u16 saddr, u32 mask, u32 value)
1723 {
1724         u32 temp;
1725         int status = 0;
1726
1727         status = cx231xx_read_i2c_data(dev, dev_addr, saddr, 2, &temp, 4);
1728
1729         if (status < 0)
1730                 return status;
1731
1732         temp &= ~mask;
1733         temp |= value;
1734
1735         status = cx231xx_write_i2c_data(dev, dev_addr, saddr, 2, temp, 4);
1736
1737         return status;
1738 }
1739
1740 u32 cx231xx_set_field(u32 field_mask, u32 data)
1741 {
1742         u32 temp;
1743
1744         for (temp = field_mask; (temp & 1) == 0; temp >>= 1)
1745                 data <<= 1;
1746
1747         return data;
1748 }