linux/drivers/media/usb/cx231xx/cx231xx-core.c
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   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3   cx231xx-core.c - driver for Conexant Cx23100/101/102
   4                                USB video capture devices
   5
   6   Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
   7                                Based on em28xx driver
   8
   9 */
  10
  11#include "cx231xx.h"
  12#include <linux/init.h>
  13#include <linux/list.h>
  14#include <linux/module.h>
  15#include <linux/slab.h>
  16#include <linux/vmalloc.h>
  17#include <media/v4l2-common.h>
  18#include <media/tuner.h>
  19
  20#include "cx231xx-reg.h"
  21
  22/* #define ENABLE_DEBUG_ISOC_FRAMES */
  23
  24static unsigned int core_debug;
  25module_param(core_debug, int, 0644);
  26MODULE_PARM_DESC(core_debug, "enable debug messages [core]");
  27
  28#define cx231xx_coredbg(fmt, arg...) do {\
  29        if (core_debug) \
  30                printk(KERN_INFO "%s %s :"fmt, \
  31                         dev->name, __func__ , ##arg); } while (0)
  32
  33static unsigned int reg_debug;
  34module_param(reg_debug, int, 0644);
  35MODULE_PARM_DESC(reg_debug, "enable debug messages [URB reg]");
  36
  37static int alt = CX231XX_PINOUT;
  38module_param(alt, int, 0644);
  39MODULE_PARM_DESC(alt, "alternate setting to use for video endpoint");
  40
  41#define cx231xx_isocdbg(fmt, arg...) do {\
  42        if (core_debug) \
  43                printk(KERN_INFO "%s %s :"fmt, \
  44                         dev->name, __func__ , ##arg); } while (0)
  45
  46/*****************************************************************
  47*             Device control list functions                                      *
  48******************************************************************/
  49
  50LIST_HEAD(cx231xx_devlist);
  51static DEFINE_MUTEX(cx231xx_devlist_mutex);
  52
  53/*
  54 * cx231xx_realease_resources()
  55 * unregisters the v4l2,i2c and usb devices
  56 * called when the device gets disconnected or at module unload
  57*/
  58void cx231xx_remove_from_devlist(struct cx231xx *dev)
  59{
  60        if (dev == NULL)
  61                return;
  62        if (dev->udev == NULL)
  63                return;
  64
  65        if (atomic_read(&dev->devlist_count) > 0) {
  66                mutex_lock(&cx231xx_devlist_mutex);
  67                list_del(&dev->devlist);
  68                atomic_dec(&dev->devlist_count);
  69                mutex_unlock(&cx231xx_devlist_mutex);
  70        }
  71};
  72
  73void cx231xx_add_into_devlist(struct cx231xx *dev)
  74{
  75        mutex_lock(&cx231xx_devlist_mutex);
  76        list_add_tail(&dev->devlist, &cx231xx_devlist);
  77        atomic_inc(&dev->devlist_count);
  78        mutex_unlock(&cx231xx_devlist_mutex);
  79};
  80
  81static LIST_HEAD(cx231xx_extension_devlist);
  82
  83int cx231xx_register_extension(struct cx231xx_ops *ops)
  84{
  85        struct cx231xx *dev = NULL;
  86
  87        mutex_lock(&cx231xx_devlist_mutex);
  88        list_add_tail(&ops->next, &cx231xx_extension_devlist);
  89        list_for_each_entry(dev, &cx231xx_devlist, devlist) {
  90                ops->init(dev);
  91                dev_info(dev->dev, "%s initialized\n", ops->name);
  92        }
  93        mutex_unlock(&cx231xx_devlist_mutex);
  94        return 0;
  95}
  96EXPORT_SYMBOL(cx231xx_register_extension);
  97
  98void cx231xx_unregister_extension(struct cx231xx_ops *ops)
  99{
 100        struct cx231xx *dev = NULL;
 101
 102        mutex_lock(&cx231xx_devlist_mutex);
 103        list_for_each_entry(dev, &cx231xx_devlist, devlist) {
 104                ops->fini(dev);
 105                dev_info(dev->dev, "%s removed\n", ops->name);
 106        }
 107
 108        list_del(&ops->next);
 109        mutex_unlock(&cx231xx_devlist_mutex);
 110}
 111EXPORT_SYMBOL(cx231xx_unregister_extension);
 112
 113void cx231xx_init_extension(struct cx231xx *dev)
 114{
 115        struct cx231xx_ops *ops = NULL;
 116
 117        mutex_lock(&cx231xx_devlist_mutex);
 118        if (!list_empty(&cx231xx_extension_devlist)) {
 119                list_for_each_entry(ops, &cx231xx_extension_devlist, next) {
 120                        if (ops->init)
 121                                ops->init(dev);
 122                }
 123        }
 124        mutex_unlock(&cx231xx_devlist_mutex);
 125}
 126
 127void cx231xx_close_extension(struct cx231xx *dev)
 128{
 129        struct cx231xx_ops *ops = NULL;
 130
 131        mutex_lock(&cx231xx_devlist_mutex);
 132        if (!list_empty(&cx231xx_extension_devlist)) {
 133                list_for_each_entry(ops, &cx231xx_extension_devlist, next) {
 134                        if (ops->fini)
 135                                ops->fini(dev);
 136                }
 137        }
 138        mutex_unlock(&cx231xx_devlist_mutex);
 139}
 140
 141/****************************************************************
 142*               U S B related functions                         *
 143*****************************************************************/
 144int cx231xx_send_usb_command(struct cx231xx_i2c *i2c_bus,
 145                             struct cx231xx_i2c_xfer_data *req_data)
 146{
 147        int status = 0;
 148        struct cx231xx *dev = i2c_bus->dev;
 149        struct VENDOR_REQUEST_IN ven_req;
 150
 151        u8 saddr_len = 0;
 152        u8 _i2c_period = 0;
 153        u8 _i2c_nostop = 0;
 154        u8 _i2c_reserve = 0;
 155
 156        if (dev->state & DEV_DISCONNECTED)
 157                return -ENODEV;
 158
 159        /* Get the I2C period, nostop and reserve parameters */
 160        _i2c_period = i2c_bus->i2c_period;
 161        _i2c_nostop = i2c_bus->i2c_nostop;
 162        _i2c_reserve = i2c_bus->i2c_reserve;
 163
 164        saddr_len = req_data->saddr_len;
 165
 166        /* Set wValue */
 167        ven_req.wValue = (req_data->dev_addr << 9 | _i2c_period << 4 |
 168                          saddr_len << 2 | _i2c_nostop << 1 | I2C_SYNC |
 169                          _i2c_reserve << 6);
 170
 171        /* set channel number */
 172        if (req_data->direction & I2C_M_RD) {
 173                /* channel number, for read,spec required channel_num +4 */
 174                ven_req.bRequest = i2c_bus->nr + 4;
 175        } else
 176                ven_req.bRequest = i2c_bus->nr; /* channel number,  */
 177
 178        /* set index value */
 179        switch (saddr_len) {
 180        case 0:
 181                ven_req.wIndex = 0;     /* need check */
 182                break;
 183        case 1:
 184                ven_req.wIndex = (req_data->saddr_dat & 0xff);
 185                break;
 186        case 2:
 187                ven_req.wIndex = req_data->saddr_dat;
 188                break;
 189        }
 190
 191        /* set wLength value */
 192        ven_req.wLength = req_data->buf_size;
 193
 194        /* set bData value */
 195        ven_req.bData = 0;
 196
 197        /* set the direction */
 198        if (req_data->direction) {
 199                ven_req.direction = USB_DIR_IN;
 200                memset(req_data->p_buffer, 0x00, ven_req.wLength);
 201        } else
 202                ven_req.direction = USB_DIR_OUT;
 203
 204        /* set the buffer for read / write */
 205        ven_req.pBuff = req_data->p_buffer;
 206
 207
 208        /* call common vendor command request */
 209        status = cx231xx_send_vendor_cmd(dev, &ven_req);
 210        if (status < 0 && !dev->i2c_scan_running) {
 211                dev_err(dev->dev, "%s: failed with status -%d\n",
 212                        __func__, status);
 213        }
 214
 215        return status;
 216}
 217EXPORT_SYMBOL_GPL(cx231xx_send_usb_command);
 218
 219/*
 220 * Sends/Receives URB control messages, assuring to use a kalloced buffer
 221 * for all operations (dev->urb_buf), to avoid using stacked buffers, as
 222 * they aren't safe for usage with USB, due to DMA restrictions.
 223 * Also implements the debug code for control URB's.
 224 */
 225static int __usb_control_msg(struct cx231xx *dev, unsigned int pipe,
 226        __u8 request, __u8 requesttype, __u16 value, __u16 index,
 227        void *data, __u16 size, int timeout)
 228{
 229        int rc, i;
 230
 231        if (reg_debug) {
 232                printk(KERN_DEBUG "%s: (pipe 0x%08x): %s:  %02x %02x %02x %02x %02x %02x %02x %02x ",
 233                                dev->name,
 234                                pipe,
 235                                (requesttype & USB_DIR_IN) ? "IN" : "OUT",
 236                                requesttype,
 237                                request,
 238                                value & 0xff, value >> 8,
 239                                index & 0xff, index >> 8,
 240                                size & 0xff, size >> 8);
 241                if (!(requesttype & USB_DIR_IN)) {
 242                        printk(KERN_CONT ">>>");
 243                        for (i = 0; i < size; i++)
 244                                printk(KERN_CONT " %02x",
 245                                       ((unsigned char *)data)[i]);
 246                }
 247        }
 248
 249        /* Do the real call to usb_control_msg */
 250        mutex_lock(&dev->ctrl_urb_lock);
 251        if (!(requesttype & USB_DIR_IN) && size)
 252                memcpy(dev->urb_buf, data, size);
 253        rc = usb_control_msg(dev->udev, pipe, request, requesttype, value,
 254                             index, dev->urb_buf, size, timeout);
 255        if ((requesttype & USB_DIR_IN) && size)
 256                memcpy(data, dev->urb_buf, size);
 257        mutex_unlock(&dev->ctrl_urb_lock);
 258
 259        if (reg_debug) {
 260                if (unlikely(rc < 0)) {
 261                        printk(KERN_CONT "FAILED!\n");
 262                        return rc;
 263                }
 264
 265                if ((requesttype & USB_DIR_IN)) {
 266                        printk(KERN_CONT "<<<");
 267                        for (i = 0; i < size; i++)
 268                                printk(KERN_CONT " %02x",
 269                                       ((unsigned char *)data)[i]);
 270                }
 271                printk(KERN_CONT "\n");
 272        }
 273
 274        return rc;
 275}
 276
 277
 278/*
 279 * cx231xx_read_ctrl_reg()
 280 * reads data from the usb device specifying bRequest and wValue
 281 */
 282int cx231xx_read_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg,
 283                          char *buf, int len)
 284{
 285        u8 val = 0;
 286        int ret;
 287        int pipe = usb_rcvctrlpipe(dev->udev, 0);
 288
 289        if (dev->state & DEV_DISCONNECTED)
 290                return -ENODEV;
 291
 292        if (len > URB_MAX_CTRL_SIZE)
 293                return -EINVAL;
 294
 295        switch (len) {
 296        case 1:
 297                val = ENABLE_ONE_BYTE;
 298                break;
 299        case 2:
 300                val = ENABLE_TWE_BYTE;
 301                break;
 302        case 3:
 303                val = ENABLE_THREE_BYTE;
 304                break;
 305        case 4:
 306                val = ENABLE_FOUR_BYTE;
 307                break;
 308        default:
 309                val = 0xFF;     /* invalid option */
 310        }
 311
 312        if (val == 0xFF)
 313                return -EINVAL;
 314
 315        ret = __usb_control_msg(dev, pipe, req,
 316                              USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 317                              val, reg, buf, len, HZ);
 318        return ret;
 319}
 320
 321int cx231xx_send_vendor_cmd(struct cx231xx *dev,
 322                                struct VENDOR_REQUEST_IN *ven_req)
 323{
 324        int ret;
 325        int pipe = 0;
 326        int unsend_size = 0;
 327        u8 *pdata;
 328
 329        if (dev->state & DEV_DISCONNECTED)
 330                return -ENODEV;
 331
 332        if ((ven_req->wLength > URB_MAX_CTRL_SIZE))
 333                return -EINVAL;
 334
 335        if (ven_req->direction)
 336                pipe = usb_rcvctrlpipe(dev->udev, 0);
 337        else
 338                pipe = usb_sndctrlpipe(dev->udev, 0);
 339
 340        /*
 341         * If the cx23102 read more than 4 bytes with i2c bus,
 342         * need chop to 4 byte per request
 343         */
 344        if ((ven_req->wLength > 4) && ((ven_req->bRequest == 0x4) ||
 345                                        (ven_req->bRequest == 0x5) ||
 346                                        (ven_req->bRequest == 0x6) ||
 347
 348                                        /* Internal Master 3 Bus can send
 349                                         * and receive only 4 bytes per time
 350                                         */
 351                                        (ven_req->bRequest == 0x2))) {
 352                unsend_size = 0;
 353                pdata = ven_req->pBuff;
 354
 355
 356                unsend_size = ven_req->wLength;
 357
 358                /* the first package */
 359                ven_req->wValue = ven_req->wValue & 0xFFFB;
 360                ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x2;
 361                ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
 362                        ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 363                        ven_req->wValue, ven_req->wIndex, pdata,
 364                        0x0004, HZ);
 365                unsend_size = unsend_size - 4;
 366
 367                /* the middle package */
 368                ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x42;
 369                while (unsend_size - 4 > 0) {
 370                        pdata = pdata + 4;
 371                        ret = __usb_control_msg(dev, pipe,
 372                                ven_req->bRequest,
 373                                ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 374                                ven_req->wValue, ven_req->wIndex, pdata,
 375                                0x0004, HZ);
 376                        unsend_size = unsend_size - 4;
 377                }
 378
 379                /* the last package */
 380                ven_req->wValue = (ven_req->wValue & 0xFFBD) | 0x40;
 381                pdata = pdata + 4;
 382                ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
 383                        ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 384                        ven_req->wValue, ven_req->wIndex, pdata,
 385                        unsend_size, HZ);
 386        } else {
 387                ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
 388                                ven_req->direction | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 389                                ven_req->wValue, ven_req->wIndex,
 390                                ven_req->pBuff, ven_req->wLength, HZ);
 391        }
 392
 393        return ret;
 394}
 395
 396/*
 397 * cx231xx_write_ctrl_reg()
 398 * sends data to the usb device, specifying bRequest
 399 */
 400int cx231xx_write_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg, char *buf,
 401                           int len)
 402{
 403        u8 val = 0;
 404        int ret;
 405        int pipe = usb_sndctrlpipe(dev->udev, 0);
 406
 407        if (dev->state & DEV_DISCONNECTED)
 408                return -ENODEV;
 409
 410        if ((len < 1) || (len > URB_MAX_CTRL_SIZE))
 411                return -EINVAL;
 412
 413        switch (len) {
 414        case 1:
 415                val = ENABLE_ONE_BYTE;
 416                break;
 417        case 2:
 418                val = ENABLE_TWE_BYTE;
 419                break;
 420        case 3:
 421                val = ENABLE_THREE_BYTE;
 422                break;
 423        case 4:
 424                val = ENABLE_FOUR_BYTE;
 425                break;
 426        default:
 427                val = 0xFF;     /* invalid option */
 428        }
 429
 430        if (val == 0xFF)
 431                return -EINVAL;
 432
 433        if (reg_debug) {
 434                int byte;
 435
 436                cx231xx_isocdbg("(pipe 0x%08x): OUT: %02x %02x %02x %02x %02x %02x %02x %02x >>>",
 437                        pipe,
 438                        USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 439                        req, 0, val, reg & 0xff,
 440                        reg >> 8, len & 0xff, len >> 8);
 441
 442                for (byte = 0; byte < len; byte++)
 443                        cx231xx_isocdbg(" %02x", (unsigned char)buf[byte]);
 444                cx231xx_isocdbg("\n");
 445        }
 446
 447        ret = __usb_control_msg(dev, pipe, req,
 448                              USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 449                              val, reg, buf, len, HZ);
 450
 451        return ret;
 452}
 453
 454/****************************************************************
 455*           USB Alternate Setting functions                     *
 456*****************************************************************/
 457
 458int cx231xx_set_video_alternate(struct cx231xx *dev)
 459{
 460        int errCode, prev_alt = dev->video_mode.alt;
 461        unsigned int min_pkt_size = dev->width * 2 + 4;
 462        u32 usb_interface_index = 0;
 463
 464        /* When image size is bigger than a certain value,
 465           the frame size should be increased, otherwise, only
 466           green screen will be received.
 467         */
 468        if (dev->width * 2 * dev->height > 720 * 240 * 2)
 469                min_pkt_size *= 2;
 470
 471        if (dev->width > 360) {
 472                /* resolutions: 720,704,640 */
 473                dev->video_mode.alt = 3;
 474        } else if (dev->width > 180) {
 475                /* resolutions: 360,352,320,240 */
 476                dev->video_mode.alt = 2;
 477        } else if (dev->width > 0) {
 478                /* resolutions: 180,176,160,128,88 */
 479                dev->video_mode.alt = 1;
 480        } else {
 481                /* Change to alt0 BULK to release USB bandwidth */
 482                dev->video_mode.alt = 0;
 483        }
 484
 485        if (dev->USE_ISO == 0)
 486                dev->video_mode.alt = 0;
 487
 488        cx231xx_coredbg("dev->video_mode.alt= %d\n", dev->video_mode.alt);
 489
 490        /* Get the correct video interface Index */
 491        usb_interface_index =
 492            dev->current_pcb_config.hs_config_info[0].interface_info.
 493            video_index + 1;
 494
 495        if (dev->video_mode.alt != prev_alt) {
 496                cx231xx_coredbg("minimum isoc packet size: %u (alt=%d)\n",
 497                                min_pkt_size, dev->video_mode.alt);
 498
 499                if (dev->video_mode.alt_max_pkt_size != NULL)
 500                        dev->video_mode.max_pkt_size =
 501                        dev->video_mode.alt_max_pkt_size[dev->video_mode.alt];
 502                cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u\n",
 503                                dev->video_mode.alt,
 504                                dev->video_mode.max_pkt_size);
 505                errCode =
 506                    usb_set_interface(dev->udev, usb_interface_index,
 507                                      dev->video_mode.alt);
 508                if (errCode < 0) {
 509                        dev_err(dev->dev,
 510                                "cannot change alt number to %d (error=%i)\n",
 511                                dev->video_mode.alt, errCode);
 512                        return errCode;
 513                }
 514        }
 515        return 0;
 516}
 517
 518int cx231xx_set_alt_setting(struct cx231xx *dev, u8 index, u8 alt)
 519{
 520        int status = 0;
 521        u32 usb_interface_index = 0;
 522        u32 max_pkt_size = 0;
 523
 524        switch (index) {
 525        case INDEX_TS1:
 526                usb_interface_index =
 527                    dev->current_pcb_config.hs_config_info[0].interface_info.
 528                    ts1_index + 1;
 529                dev->ts1_mode.alt = alt;
 530                if (dev->ts1_mode.alt_max_pkt_size != NULL)
 531                        max_pkt_size = dev->ts1_mode.max_pkt_size =
 532                            dev->ts1_mode.alt_max_pkt_size[dev->ts1_mode.alt];
 533                break;
 534        case INDEX_TS2:
 535                usb_interface_index =
 536                    dev->current_pcb_config.hs_config_info[0].interface_info.
 537                    ts2_index + 1;
 538                break;
 539        case INDEX_AUDIO:
 540                usb_interface_index =
 541                    dev->current_pcb_config.hs_config_info[0].interface_info.
 542                    audio_index + 1;
 543                dev->adev.alt = alt;
 544                if (dev->adev.alt_max_pkt_size != NULL)
 545                        max_pkt_size = dev->adev.max_pkt_size =
 546                            dev->adev.alt_max_pkt_size[dev->adev.alt];
 547                break;
 548        case INDEX_VIDEO:
 549                usb_interface_index =
 550                    dev->current_pcb_config.hs_config_info[0].interface_info.
 551                    video_index + 1;
 552                dev->video_mode.alt = alt;
 553                if (dev->video_mode.alt_max_pkt_size != NULL)
 554                        max_pkt_size = dev->video_mode.max_pkt_size =
 555                            dev->video_mode.alt_max_pkt_size[dev->video_mode.
 556                                                             alt];
 557                break;
 558        case INDEX_VANC:
 559                if (dev->board.no_alt_vanc)
 560                        return 0;
 561                usb_interface_index =
 562                    dev->current_pcb_config.hs_config_info[0].interface_info.
 563                    vanc_index + 1;
 564                dev->vbi_mode.alt = alt;
 565                if (dev->vbi_mode.alt_max_pkt_size != NULL)
 566                        max_pkt_size = dev->vbi_mode.max_pkt_size =
 567                            dev->vbi_mode.alt_max_pkt_size[dev->vbi_mode.alt];
 568                break;
 569        case INDEX_HANC:
 570                usb_interface_index =
 571                    dev->current_pcb_config.hs_config_info[0].interface_info.
 572                    hanc_index + 1;
 573                dev->sliced_cc_mode.alt = alt;
 574                if (dev->sliced_cc_mode.alt_max_pkt_size != NULL)
 575                        max_pkt_size = dev->sliced_cc_mode.max_pkt_size =
 576                            dev->sliced_cc_mode.alt_max_pkt_size[dev->
 577                                                                 sliced_cc_mode.
 578                                                                 alt];
 579                break;
 580        default:
 581                break;
 582        }
 583
 584        if (alt > 0 && max_pkt_size == 0) {
 585                dev_err(dev->dev,
 586                        "can't change interface %d alt no. to %d: Max. Pkt size = 0\n",
 587                        usb_interface_index, alt);
 588                /*To workaround error number=-71 on EP0 for videograbber,
 589                 need add following codes.*/
 590                if (dev->board.no_alt_vanc)
 591                        return -1;
 592        }
 593
 594        cx231xx_coredbg("setting alternate %d with wMaxPacketSize=%u,Interface = %d\n",
 595                        alt, max_pkt_size,
 596                        usb_interface_index);
 597
 598        if (usb_interface_index > 0) {
 599                status = usb_set_interface(dev->udev, usb_interface_index, alt);
 600                if (status < 0) {
 601                        dev_err(dev->dev,
 602                                "can't change interface %d alt no. to %d (err=%i)\n",
 603                                usb_interface_index, alt, status);
 604                        return status;
 605                }
 606        }
 607
 608        return status;
 609}
 610EXPORT_SYMBOL_GPL(cx231xx_set_alt_setting);
 611
 612int cx231xx_gpio_set(struct cx231xx *dev, struct cx231xx_reg_seq *gpio)
 613{
 614        int rc = 0;
 615
 616        if (!gpio)
 617                return rc;
 618
 619        /* Send GPIO reset sequences specified at board entry */
 620        while (gpio->sleep >= 0) {
 621                rc = cx231xx_set_gpio_value(dev, gpio->bit, gpio->val);
 622                if (rc < 0)
 623                        return rc;
 624
 625                if (gpio->sleep > 0)
 626                        msleep(gpio->sleep);
 627
 628                gpio++;
 629        }
 630        return rc;
 631}
 632
 633int cx231xx_demod_reset(struct cx231xx *dev)
 634{
 635
 636        u8 status = 0;
 637        u8 value[4] = { 0, 0, 0, 0 };
 638
 639        status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
 640                                 value, 4);
 641
 642        cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
 643                        value[0], value[1], value[2], value[3]);
 644
 645        cx231xx_coredbg("Enter cx231xx_demod_reset()\n");
 646
 647        value[1] = (u8) 0x3;
 648        status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
 649                                        PWR_CTL_EN, value, 4);
 650        msleep(10);
 651
 652        value[1] = (u8) 0x0;
 653        status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
 654                                        PWR_CTL_EN, value, 4);
 655        msleep(10);
 656
 657        value[1] = (u8) 0x3;
 658        status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
 659                                        PWR_CTL_EN, value, 4);
 660        msleep(10);
 661
 662        status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
 663                                 value, 4);
 664
 665        cx231xx_coredbg("reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN,
 666                        value[0], value[1], value[2], value[3]);
 667
 668        return status;
 669}
 670EXPORT_SYMBOL_GPL(cx231xx_demod_reset);
 671int is_fw_load(struct cx231xx *dev)
 672{
 673        return cx231xx_check_fw(dev);
 674}
 675EXPORT_SYMBOL_GPL(is_fw_load);
 676
 677int cx231xx_set_mode(struct cx231xx *dev, enum cx231xx_mode set_mode)
 678{
 679        int errCode = 0;
 680
 681        if (dev->mode == set_mode)
 682                return 0;
 683
 684        if (set_mode == CX231XX_SUSPEND) {
 685                /* Set the chip in power saving mode */
 686                dev->mode = set_mode;
 687        }
 688
 689        /* Resource is locked */
 690        if (dev->mode != CX231XX_SUSPEND)
 691                return -EINVAL;
 692
 693        dev->mode = set_mode;
 694
 695        if (dev->mode == CX231XX_DIGITAL_MODE)/* Set Digital power mode */ {
 696        /* set AGC mode to Digital */
 697                switch (dev->model) {
 698                case CX231XX_BOARD_CNXT_CARRAERA:
 699                case CX231XX_BOARD_CNXT_RDE_250:
 700                case CX231XX_BOARD_CNXT_SHELBY:
 701                case CX231XX_BOARD_CNXT_RDU_250:
 702                errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
 703                        break;
 704                case CX231XX_BOARD_CNXT_RDE_253S:
 705                case CX231XX_BOARD_CNXT_RDU_253S:
 706                case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
 707                        errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
 708                        break;
 709                case CX231XX_BOARD_HAUPPAUGE_EXETER:
 710                case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
 711                        errCode = cx231xx_set_power_mode(dev,
 712                                                POLARIS_AVMODE_DIGITAL);
 713                        break;
 714                default:
 715                        break;
 716                }
 717        } else/* Set Analog Power mode */ {
 718        /* set AGC mode to Analog */
 719                switch (dev->model) {
 720                case CX231XX_BOARD_CNXT_CARRAERA:
 721                case CX231XX_BOARD_CNXT_RDE_250:
 722                case CX231XX_BOARD_CNXT_SHELBY:
 723                case CX231XX_BOARD_CNXT_RDU_250:
 724                errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
 725                        break;
 726                case CX231XX_BOARD_CNXT_RDE_253S:
 727                case CX231XX_BOARD_CNXT_RDU_253S:
 728                case CX231XX_BOARD_HAUPPAUGE_EXETER:
 729                case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
 730                case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
 731                case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
 732                case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
 733                        errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
 734                        break;
 735                default:
 736                        break;
 737                }
 738        }
 739
 740        if (errCode < 0) {
 741                dev_err(dev->dev, "Failed to set devmode to %s: error: %i",
 742                        dev->mode == CX231XX_DIGITAL_MODE ? "digital" : "analog",
 743                        errCode);
 744                return errCode;
 745        }
 746
 747        return 0;
 748}
 749EXPORT_SYMBOL_GPL(cx231xx_set_mode);
 750
 751int cx231xx_ep5_bulkout(struct cx231xx *dev, u8 *firmware, u16 size)
 752{
 753        int errCode = 0;
 754        int actlen = -1;
 755        int ret = -ENOMEM;
 756        u32 *buffer;
 757
 758        buffer = kzalloc(4096, GFP_KERNEL);
 759        if (buffer == NULL)
 760                return -ENOMEM;
 761        memcpy(&buffer[0], firmware, 4096);
 762
 763        ret = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 5),
 764                        buffer, 4096, &actlen, 2000);
 765
 766        if (ret)
 767                dev_err(dev->dev,
 768                        "bulk message failed: %d (%d/%d)", ret,
 769                        size, actlen);
 770        else {
 771                errCode = actlen != size ? -1 : 0;
 772        }
 773        kfree(buffer);
 774        return errCode;
 775}
 776
 777/*****************************************************************
 778*                URB Streaming functions                         *
 779******************************************************************/
 780
 781/*
 782 * IRQ callback, called by URB callback
 783 */
 784static void cx231xx_isoc_irq_callback(struct urb *urb)
 785{
 786        struct cx231xx_dmaqueue *dma_q = urb->context;
 787        struct cx231xx_video_mode *vmode =
 788            container_of(dma_q, struct cx231xx_video_mode, vidq);
 789        struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
 790        unsigned long flags;
 791        int i;
 792
 793        switch (urb->status) {
 794        case 0:         /* success */
 795        case -ETIMEDOUT:        /* NAK */
 796                break;
 797        case -ECONNRESET:       /* kill */
 798        case -ENOENT:
 799        case -ESHUTDOWN:
 800                return;
 801        default:                /* error */
 802                cx231xx_isocdbg("urb completion error %d.\n", urb->status);
 803                break;
 804        }
 805
 806        /* Copy data from URB */
 807        spin_lock_irqsave(&dev->video_mode.slock, flags);
 808        dev->video_mode.isoc_ctl.isoc_copy(dev, urb);
 809        spin_unlock_irqrestore(&dev->video_mode.slock, flags);
 810
 811        /* Reset urb buffers */
 812        for (i = 0; i < urb->number_of_packets; i++) {
 813                urb->iso_frame_desc[i].status = 0;
 814                urb->iso_frame_desc[i].actual_length = 0;
 815        }
 816
 817        urb->status = usb_submit_urb(urb, GFP_ATOMIC);
 818        if (urb->status) {
 819                cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
 820                                urb->status);
 821        }
 822}
 823/*****************************************************************
 824*                URB Streaming functions                         *
 825******************************************************************/
 826
 827/*
 828 * IRQ callback, called by URB callback
 829 */
 830static void cx231xx_bulk_irq_callback(struct urb *urb)
 831{
 832        struct cx231xx_dmaqueue *dma_q = urb->context;
 833        struct cx231xx_video_mode *vmode =
 834            container_of(dma_q, struct cx231xx_video_mode, vidq);
 835        struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
 836        unsigned long flags;
 837
 838        switch (urb->status) {
 839        case 0:         /* success */
 840        case -ETIMEDOUT:        /* NAK */
 841                break;
 842        case -ECONNRESET:       /* kill */
 843        case -ENOENT:
 844        case -ESHUTDOWN:
 845                return;
 846        case -EPIPE:            /* stall */
 847                cx231xx_isocdbg("urb completion error - device is stalled.\n");
 848                return;
 849        default:                /* error */
 850                cx231xx_isocdbg("urb completion error %d.\n", urb->status);
 851                break;
 852        }
 853
 854        /* Copy data from URB */
 855        spin_lock_irqsave(&dev->video_mode.slock, flags);
 856        dev->video_mode.bulk_ctl.bulk_copy(dev, urb);
 857        spin_unlock_irqrestore(&dev->video_mode.slock, flags);
 858
 859        /* Reset urb buffers */
 860        urb->status = usb_submit_urb(urb, GFP_ATOMIC);
 861        if (urb->status) {
 862                cx231xx_isocdbg("urb resubmit failed (error=%i)\n",
 863                                urb->status);
 864        }
 865}
 866/*
 867 * Stop and Deallocate URBs
 868 */
 869void cx231xx_uninit_isoc(struct cx231xx *dev)
 870{
 871        struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
 872        struct urb *urb;
 873        int i;
 874        bool broken_pipe = false;
 875
 876        cx231xx_isocdbg("cx231xx: called cx231xx_uninit_isoc\n");
 877
 878        dev->video_mode.isoc_ctl.nfields = -1;
 879        for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
 880                urb = dev->video_mode.isoc_ctl.urb[i];
 881                if (urb) {
 882                        if (!irqs_disabled())
 883                                usb_kill_urb(urb);
 884                        else
 885                                usb_unlink_urb(urb);
 886
 887                        if (dev->video_mode.isoc_ctl.transfer_buffer[i]) {
 888                                usb_free_coherent(dev->udev,
 889                                                  urb->transfer_buffer_length,
 890                                                  dev->video_mode.isoc_ctl.
 891                                                  transfer_buffer[i],
 892                                                  urb->transfer_dma);
 893                        }
 894                        if (urb->status == -EPIPE) {
 895                                broken_pipe = true;
 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        if (broken_pipe) {
 904                cx231xx_isocdbg("Reset endpoint to recover broken pipe.");
 905                usb_reset_endpoint(dev->udev, dev->video_mode.end_point_addr);
 906        }
 907        kfree(dev->video_mode.isoc_ctl.urb);
 908        kfree(dev->video_mode.isoc_ctl.transfer_buffer);
 909        kfree(dma_q->p_left_data);
 910
 911        dev->video_mode.isoc_ctl.urb = NULL;
 912        dev->video_mode.isoc_ctl.transfer_buffer = NULL;
 913        dev->video_mode.isoc_ctl.num_bufs = 0;
 914        dma_q->p_left_data = NULL;
 915
 916        if (dev->mode_tv == 0)
 917                cx231xx_capture_start(dev, 0, Raw_Video);
 918        else
 919                cx231xx_capture_start(dev, 0, TS1_serial_mode);
 920
 921
 922}
 923EXPORT_SYMBOL_GPL(cx231xx_uninit_isoc);
 924
 925/*
 926 * Stop and Deallocate URBs
 927 */
 928void cx231xx_uninit_bulk(struct cx231xx *dev)
 929{
 930        struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
 931        struct urb *urb;
 932        int i;
 933        bool broken_pipe = false;
 934
 935        cx231xx_isocdbg("cx231xx: called cx231xx_uninit_bulk\n");
 936
 937        dev->video_mode.bulk_ctl.nfields = -1;
 938        for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
 939                urb = dev->video_mode.bulk_ctl.urb[i];
 940                if (urb) {
 941                        if (!irqs_disabled())
 942                                usb_kill_urb(urb);
 943                        else
 944                                usb_unlink_urb(urb);
 945
 946                        if (dev->video_mode.bulk_ctl.transfer_buffer[i]) {
 947                                usb_free_coherent(dev->udev,
 948                                                urb->transfer_buffer_length,
 949                                                dev->video_mode.bulk_ctl.
 950                                                transfer_buffer[i],
 951                                                urb->transfer_dma);
 952                        }
 953                        if (urb->status == -EPIPE) {
 954                                broken_pipe = true;
 955                        }
 956                        usb_free_urb(urb);
 957                        dev->video_mode.bulk_ctl.urb[i] = NULL;
 958                }
 959                dev->video_mode.bulk_ctl.transfer_buffer[i] = NULL;
 960        }
 961
 962        if (broken_pipe) {
 963                cx231xx_isocdbg("Reset endpoint to recover broken pipe.");
 964                usb_reset_endpoint(dev->udev, dev->video_mode.end_point_addr);
 965        }
 966        kfree(dev->video_mode.bulk_ctl.urb);
 967        kfree(dev->video_mode.bulk_ctl.transfer_buffer);
 968        kfree(dma_q->p_left_data);
 969
 970        dev->video_mode.bulk_ctl.urb = NULL;
 971        dev->video_mode.bulk_ctl.transfer_buffer = NULL;
 972        dev->video_mode.bulk_ctl.num_bufs = 0;
 973        dma_q->p_left_data = NULL;
 974
 975        if (dev->mode_tv == 0)
 976                cx231xx_capture_start(dev, 0, Raw_Video);
 977        else
 978                cx231xx_capture_start(dev, 0, TS1_serial_mode);
 979
 980
 981}
 982EXPORT_SYMBOL_GPL(cx231xx_uninit_bulk);
 983
 984/*
 985 * Allocate URBs and start IRQ
 986 */
 987int cx231xx_init_isoc(struct cx231xx *dev, int max_packets,
 988                      int num_bufs, int max_pkt_size,
 989                      int (*isoc_copy) (struct cx231xx *dev, struct urb *urb))
 990{
 991        struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
 992        int i;
 993        int sb_size, pipe;
 994        struct urb *urb;
 995        int j, k;
 996        int rc;
 997
 998        /* De-allocates all pending stuff */
 999        cx231xx_uninit_isoc(dev);
1000
1001        dma_q->p_left_data = kzalloc(4096, GFP_KERNEL);
1002        if (dma_q->p_left_data == NULL)
1003                return -ENOMEM;
1004
1005        dev->video_mode.isoc_ctl.isoc_copy = isoc_copy;
1006        dev->video_mode.isoc_ctl.num_bufs = num_bufs;
1007        dma_q->pos = 0;
1008        dma_q->is_partial_line = 0;
1009        dma_q->last_sav = 0;
1010        dma_q->current_field = -1;
1011        dma_q->field1_done = 0;
1012        dma_q->lines_per_field = dev->height / 2;
1013        dma_q->bytes_left_in_line = dev->width << 1;
1014        dma_q->lines_completed = 0;
1015        dma_q->mpeg_buffer_done = 0;
1016        dma_q->left_data_count = 0;
1017        dma_q->mpeg_buffer_completed = 0;
1018        dma_q->add_ps_package_head = CX231XX_NEED_ADD_PS_PACKAGE_HEAD;
1019        dma_q->ps_head[0] = 0x00;
1020        dma_q->ps_head[1] = 0x00;
1021        dma_q->ps_head[2] = 0x01;
1022        dma_q->ps_head[3] = 0xBA;
1023        for (i = 0; i < 8; i++)
1024                dma_q->partial_buf[i] = 0;
1025
1026        dev->video_mode.isoc_ctl.urb =
1027            kcalloc(num_bufs, sizeof(void *), GFP_KERNEL);
1028        if (!dev->video_mode.isoc_ctl.urb) {
1029                dev_err(dev->dev,
1030                        "cannot alloc memory for usb buffers\n");
1031                return -ENOMEM;
1032        }
1033
1034        dev->video_mode.isoc_ctl.transfer_buffer =
1035            kcalloc(num_bufs, sizeof(void *), GFP_KERNEL);
1036        if (!dev->video_mode.isoc_ctl.transfer_buffer) {
1037                dev_err(dev->dev,
1038                        "cannot allocate memory for usbtransfer\n");
1039                kfree(dev->video_mode.isoc_ctl.urb);
1040                return -ENOMEM;
1041        }
1042
1043        dev->video_mode.isoc_ctl.max_pkt_size = max_pkt_size;
1044        dev->video_mode.isoc_ctl.buf = NULL;
1045
1046        sb_size = max_packets * dev->video_mode.isoc_ctl.max_pkt_size;
1047
1048        if (dev->mode_tv == 1)
1049                dev->video_mode.end_point_addr = 0x81;
1050        else
1051                dev->video_mode.end_point_addr = 0x84;
1052
1053
1054        /* allocate urbs and transfer buffers */
1055        for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1056                urb = usb_alloc_urb(max_packets, GFP_KERNEL);
1057                if (!urb) {
1058                        cx231xx_uninit_isoc(dev);
1059                        return -ENOMEM;
1060                }
1061                dev->video_mode.isoc_ctl.urb[i] = urb;
1062
1063                dev->video_mode.isoc_ctl.transfer_buffer[i] =
1064                    usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1065                                       &urb->transfer_dma);
1066                if (!dev->video_mode.isoc_ctl.transfer_buffer[i]) {
1067                        dev_err(dev->dev,
1068                                "unable to allocate %i bytes for transfer buffer %i%s\n",
1069                                sb_size, i,
1070                                in_interrupt() ? " while in int" : "");
1071                        cx231xx_uninit_isoc(dev);
1072                        return -ENOMEM;
1073                }
1074                memset(dev->video_mode.isoc_ctl.transfer_buffer[i], 0, sb_size);
1075
1076                pipe =
1077                    usb_rcvisocpipe(dev->udev, dev->video_mode.end_point_addr);
1078
1079                usb_fill_int_urb(urb, dev->udev, pipe,
1080                                 dev->video_mode.isoc_ctl.transfer_buffer[i],
1081                                 sb_size, cx231xx_isoc_irq_callback, dma_q, 1);
1082
1083                urb->number_of_packets = max_packets;
1084                urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
1085
1086                k = 0;
1087                for (j = 0; j < max_packets; j++) {
1088                        urb->iso_frame_desc[j].offset = k;
1089                        urb->iso_frame_desc[j].length =
1090                            dev->video_mode.isoc_ctl.max_pkt_size;
1091                        k += dev->video_mode.isoc_ctl.max_pkt_size;
1092                }
1093        }
1094
1095        init_waitqueue_head(&dma_q->wq);
1096
1097        /* submit urbs and enables IRQ */
1098        for (i = 0; i < dev->video_mode.isoc_ctl.num_bufs; i++) {
1099                rc = usb_submit_urb(dev->video_mode.isoc_ctl.urb[i],
1100                                    GFP_ATOMIC);
1101                if (rc) {
1102                        dev_err(dev->dev,
1103                                "submit of urb %i failed (error=%i)\n", i,
1104                                rc);
1105                        cx231xx_uninit_isoc(dev);
1106                        return rc;
1107                }
1108        }
1109
1110        if (dev->mode_tv == 0)
1111                cx231xx_capture_start(dev, 1, Raw_Video);
1112        else
1113                cx231xx_capture_start(dev, 1, TS1_serial_mode);
1114
1115        return 0;
1116}
1117EXPORT_SYMBOL_GPL(cx231xx_init_isoc);
1118
1119/*
1120 * Allocate URBs and start IRQ
1121 */
1122int cx231xx_init_bulk(struct cx231xx *dev, int max_packets,
1123                      int num_bufs, int max_pkt_size,
1124                      int (*bulk_copy) (struct cx231xx *dev, struct urb *urb))
1125{
1126        struct cx231xx_dmaqueue *dma_q = &dev->video_mode.vidq;
1127        int i;
1128        int sb_size, pipe;
1129        struct urb *urb;
1130        int rc;
1131
1132        dev->video_input = dev->video_input > 2 ? 2 : dev->video_input;
1133
1134        cx231xx_coredbg("Setting Video mux to %d\n", dev->video_input);
1135
1136        video_mux(dev, dev->video_input);
1137
1138        /* De-allocates all pending stuff */
1139        cx231xx_uninit_bulk(dev);
1140
1141        dev->video_mode.bulk_ctl.bulk_copy = bulk_copy;
1142        dev->video_mode.bulk_ctl.num_bufs = num_bufs;
1143        dma_q->pos = 0;
1144        dma_q->is_partial_line = 0;
1145        dma_q->last_sav = 0;
1146        dma_q->current_field = -1;
1147        dma_q->field1_done = 0;
1148        dma_q->lines_per_field = dev->height / 2;
1149        dma_q->bytes_left_in_line = dev->width << 1;
1150        dma_q->lines_completed = 0;
1151        dma_q->mpeg_buffer_done = 0;
1152        dma_q->left_data_count = 0;
1153        dma_q->mpeg_buffer_completed = 0;
1154        dma_q->ps_head[0] = 0x00;
1155        dma_q->ps_head[1] = 0x00;
1156        dma_q->ps_head[2] = 0x01;
1157        dma_q->ps_head[3] = 0xBA;
1158        for (i = 0; i < 8; i++)
1159                dma_q->partial_buf[i] = 0;
1160
1161        dev->video_mode.bulk_ctl.urb =
1162            kcalloc(num_bufs, sizeof(void *), GFP_KERNEL);
1163        if (!dev->video_mode.bulk_ctl.urb) {
1164                dev_err(dev->dev,
1165                        "cannot alloc memory for usb buffers\n");
1166                return -ENOMEM;
1167        }
1168
1169        dev->video_mode.bulk_ctl.transfer_buffer =
1170            kcalloc(num_bufs, sizeof(void *), GFP_KERNEL);
1171        if (!dev->video_mode.bulk_ctl.transfer_buffer) {
1172                dev_err(dev->dev,
1173                        "cannot allocate memory for usbtransfer\n");
1174                kfree(dev->video_mode.bulk_ctl.urb);
1175                return -ENOMEM;
1176        }
1177
1178        dev->video_mode.bulk_ctl.max_pkt_size = max_pkt_size;
1179        dev->video_mode.bulk_ctl.buf = NULL;
1180
1181        sb_size = max_packets * dev->video_mode.bulk_ctl.max_pkt_size;
1182
1183        if (dev->mode_tv == 1)
1184                dev->video_mode.end_point_addr = 0x81;
1185        else
1186                dev->video_mode.end_point_addr = 0x84;
1187
1188
1189        /* allocate urbs and transfer buffers */
1190        for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1191                urb = usb_alloc_urb(0, GFP_KERNEL);
1192                if (!urb) {
1193                        cx231xx_uninit_bulk(dev);
1194                        return -ENOMEM;
1195                }
1196                dev->video_mode.bulk_ctl.urb[i] = urb;
1197                urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
1198
1199                dev->video_mode.bulk_ctl.transfer_buffer[i] =
1200                    usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
1201                                     &urb->transfer_dma);
1202                if (!dev->video_mode.bulk_ctl.transfer_buffer[i]) {
1203                        dev_err(dev->dev,
1204                                "unable to allocate %i bytes for transfer buffer %i%s\n",
1205                                sb_size, i,
1206                                in_interrupt() ? " while in int" : "");
1207                        cx231xx_uninit_bulk(dev);
1208                        return -ENOMEM;
1209                }
1210                memset(dev->video_mode.bulk_ctl.transfer_buffer[i], 0, sb_size);
1211
1212                pipe = usb_rcvbulkpipe(dev->udev,
1213                                 dev->video_mode.end_point_addr);
1214                usb_fill_bulk_urb(urb, dev->udev, pipe,
1215                                  dev->video_mode.bulk_ctl.transfer_buffer[i],
1216                                  sb_size, cx231xx_bulk_irq_callback, dma_q);
1217        }
1218
1219        /* clear halt */
1220        rc = usb_clear_halt(dev->udev, dev->video_mode.bulk_ctl.urb[0]->pipe);
1221        if (rc < 0) {
1222                dev_err(dev->dev,
1223                        "failed to clear USB bulk endpoint stall/halt condition (error=%i)\n",
1224                        rc);
1225                cx231xx_uninit_bulk(dev);
1226                return rc;
1227        }
1228
1229        init_waitqueue_head(&dma_q->wq);
1230
1231        /* submit urbs and enables IRQ */
1232        for (i = 0; i < dev->video_mode.bulk_ctl.num_bufs; i++) {
1233                rc = usb_submit_urb(dev->video_mode.bulk_ctl.urb[i],
1234                                    GFP_ATOMIC);
1235                if (rc) {
1236                        dev_err(dev->dev,
1237                                "submit of urb %i failed (error=%i)\n", i, rc);
1238                        cx231xx_uninit_bulk(dev);
1239                        return rc;
1240                }
1241        }
1242
1243        if (dev->mode_tv == 0)
1244                cx231xx_capture_start(dev, 1, Raw_Video);
1245        else
1246                cx231xx_capture_start(dev, 1, TS1_serial_mode);
1247
1248        return 0;
1249}
1250EXPORT_SYMBOL_GPL(cx231xx_init_bulk);
1251void cx231xx_stop_TS1(struct cx231xx *dev)
1252{
1253        u8 val[4] = { 0, 0, 0, 0 };
1254
1255        val[0] = 0x00;
1256        val[1] = 0x03;
1257        val[2] = 0x00;
1258        val[3] = 0x00;
1259        cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1260                        TS_MODE_REG, val, 4);
1261
1262        val[0] = 0x00;
1263        val[1] = 0x70;
1264        val[2] = 0x04;
1265        val[3] = 0x00;
1266        cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1267                        TS1_CFG_REG, val, 4);
1268}
1269/* EXPORT_SYMBOL_GPL(cx231xx_stop_TS1); */
1270void cx231xx_start_TS1(struct cx231xx *dev)
1271{
1272        u8 val[4] = { 0, 0, 0, 0 };
1273
1274        val[0] = 0x03;
1275        val[1] = 0x03;
1276        val[2] = 0x00;
1277        val[3] = 0x00;
1278        cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1279                        TS_MODE_REG, val, 4);
1280
1281        val[0] = 0x04;
1282        val[1] = 0xA3;
1283        val[2] = 0x3B;
1284        val[3] = 0x00;
1285        cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1286                        TS1_CFG_REG, val, 4);
1287}
1288/* EXPORT_SYMBOL_GPL(cx231xx_start_TS1); */
1289/*****************************************************************
1290*             Device Init/UnInit functions                       *
1291******************************************************************/
1292int cx231xx_dev_init(struct cx231xx *dev)
1293{
1294        int errCode = 0;
1295
1296        /* Initialize I2C bus */
1297
1298        /* External Master 1 Bus */
1299        dev->i2c_bus[0].nr = 0;
1300        dev->i2c_bus[0].dev = dev;
1301        dev->i2c_bus[0].i2c_period = I2C_SPEED_100K;    /* 100 KHz */
1302        dev->i2c_bus[0].i2c_nostop = 0;
1303        dev->i2c_bus[0].i2c_reserve = 0;
1304        dev->i2c_bus[0].i2c_rc = -ENODEV;
1305
1306        /* External Master 2 Bus */
1307        dev->i2c_bus[1].nr = 1;
1308        dev->i2c_bus[1].dev = dev;
1309        dev->i2c_bus[1].i2c_period = I2C_SPEED_100K;    /* 100 KHz */
1310        dev->i2c_bus[1].i2c_nostop = 0;
1311        dev->i2c_bus[1].i2c_reserve = 0;
1312        dev->i2c_bus[1].i2c_rc = -ENODEV;
1313
1314        /* Internal Master 3 Bus */
1315        dev->i2c_bus[2].nr = 2;
1316        dev->i2c_bus[2].dev = dev;
1317        dev->i2c_bus[2].i2c_period = I2C_SPEED_100K;    /* 100kHz */
1318        dev->i2c_bus[2].i2c_nostop = 0;
1319        dev->i2c_bus[2].i2c_reserve = 0;
1320        dev->i2c_bus[2].i2c_rc = -ENODEV;
1321
1322        /* register I2C buses */
1323        errCode = cx231xx_i2c_register(&dev->i2c_bus[0]);
1324        if (errCode < 0)
1325                return errCode;
1326        errCode = cx231xx_i2c_register(&dev->i2c_bus[1]);
1327        if (errCode < 0)
1328                return errCode;
1329        errCode = cx231xx_i2c_register(&dev->i2c_bus[2]);
1330        if (errCode < 0)
1331                return errCode;
1332
1333        errCode = cx231xx_i2c_mux_create(dev);
1334        if (errCode < 0) {
1335                dev_err(dev->dev,
1336                        "%s: Failed to create I2C mux\n", __func__);
1337                return errCode;
1338        }
1339        errCode = cx231xx_i2c_mux_register(dev, 0);
1340        if (errCode < 0)
1341                return errCode;
1342
1343        errCode = cx231xx_i2c_mux_register(dev, 1);
1344        if (errCode < 0)
1345                return errCode;
1346
1347        /* scan the real bus segments in the order of physical port numbers */
1348        cx231xx_do_i2c_scan(dev, I2C_0);
1349        cx231xx_do_i2c_scan(dev, I2C_1_MUX_1);
1350        cx231xx_do_i2c_scan(dev, I2C_2);
1351        cx231xx_do_i2c_scan(dev, I2C_1_MUX_3);
1352
1353        /* init hardware */
1354        /* Note : with out calling set power mode function,
1355        afe can not be set up correctly */
1356        if (dev->board.external_av) {
1357                errCode = cx231xx_set_power_mode(dev,
1358                                 POLARIS_AVMODE_ENXTERNAL_AV);
1359                if (errCode < 0) {
1360                        dev_err(dev->dev,
1361                                "%s: Failed to set Power - errCode [%d]!\n",
1362                                __func__, errCode);
1363                        return errCode;
1364                }
1365        } else {
1366                errCode = cx231xx_set_power_mode(dev,
1367                                 POLARIS_AVMODE_ANALOGT_TV);
1368                if (errCode < 0) {
1369                        dev_err(dev->dev,
1370                                "%s: Failed to set Power - errCode [%d]!\n",
1371                                __func__, errCode);
1372                        return errCode;
1373                }
1374        }
1375
1376        /* reset the Tuner, if it is a Xceive tuner */
1377        if ((dev->board.tuner_type == TUNER_XC5000) ||
1378            (dev->board.tuner_type == TUNER_XC2028))
1379                        cx231xx_gpio_set(dev, dev->board.tuner_gpio);
1380
1381        /* initialize Colibri block */
1382        errCode = cx231xx_afe_init_super_block(dev, 0x23c);
1383        if (errCode < 0) {
1384                dev_err(dev->dev,
1385                        "%s: cx231xx_afe init super block - errCode [%d]!\n",
1386                        __func__, errCode);
1387                return errCode;
1388        }
1389        errCode = cx231xx_afe_init_channels(dev);
1390        if (errCode < 0) {
1391                dev_err(dev->dev,
1392                        "%s: cx231xx_afe init channels - errCode [%d]!\n",
1393                        __func__, errCode);
1394                return errCode;
1395        }
1396
1397        /* Set DIF in By pass mode */
1398        errCode = cx231xx_dif_set_standard(dev, DIF_USE_BASEBAND);
1399        if (errCode < 0) {
1400                dev_err(dev->dev,
1401                        "%s: cx231xx_dif set to By pass mode - errCode [%d]!\n",
1402                        __func__, errCode);
1403                return errCode;
1404        }
1405
1406        /* I2S block related functions */
1407        errCode = cx231xx_i2s_blk_initialize(dev);
1408        if (errCode < 0) {
1409                dev_err(dev->dev,
1410                        "%s: cx231xx_i2s block initialize - errCode [%d]!\n",
1411                        __func__, errCode);
1412                return errCode;
1413        }
1414
1415        /* init control pins */
1416        errCode = cx231xx_init_ctrl_pin_status(dev);
1417        if (errCode < 0) {
1418                dev_err(dev->dev,
1419                        "%s: cx231xx_init ctrl pins - errCode [%d]!\n",
1420                        __func__, errCode);
1421                return errCode;
1422        }
1423
1424        /* set AGC mode to Analog */
1425        switch (dev->model) {
1426        case CX231XX_BOARD_CNXT_CARRAERA:
1427        case CX231XX_BOARD_CNXT_RDE_250:
1428        case CX231XX_BOARD_CNXT_SHELBY:
1429        case CX231XX_BOARD_CNXT_RDU_250:
1430        errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 1);
1431                break;
1432        case CX231XX_BOARD_CNXT_RDE_253S:
1433        case CX231XX_BOARD_CNXT_RDU_253S:
1434        case CX231XX_BOARD_HAUPPAUGE_EXETER:
1435        case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
1436        case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
1437        case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
1438        case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
1439        errCode = cx231xx_set_agc_analog_digital_mux_select(dev, 0);
1440                break;
1441        default:
1442                break;
1443        }
1444        if (errCode < 0) {
1445                dev_err(dev->dev,
1446                        "%s: cx231xx_AGC mode to Analog - errCode [%d]!\n",
1447                        __func__, errCode);
1448                return errCode;
1449        }
1450
1451        /* set all alternate settings to zero initially */
1452        cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0);
1453        cx231xx_set_alt_setting(dev, INDEX_VANC, 0);
1454        cx231xx_set_alt_setting(dev, INDEX_HANC, 0);
1455        if (dev->board.has_dvb)
1456                cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
1457
1458        errCode = 0;
1459        return errCode;
1460}
1461EXPORT_SYMBOL_GPL(cx231xx_dev_init);
1462
1463void cx231xx_dev_uninit(struct cx231xx *dev)
1464{
1465        /* Un Initialize I2C bus */
1466        cx231xx_i2c_mux_unregister(dev);
1467        cx231xx_i2c_unregister(&dev->i2c_bus[2]);
1468        cx231xx_i2c_unregister(&dev->i2c_bus[1]);
1469        cx231xx_i2c_unregister(&dev->i2c_bus[0]);
1470}
1471EXPORT_SYMBOL_GPL(cx231xx_dev_uninit);
1472
1473/*****************************************************************
1474*              G P I O related functions                         *
1475******************************************************************/
1476int cx231xx_send_gpio_cmd(struct cx231xx *dev, u32 gpio_bit, u8 *gpio_val,
1477                          u8 len, u8 request, u8 direction)
1478{
1479        int status = 0;
1480        struct VENDOR_REQUEST_IN ven_req;
1481
1482        /* Set wValue */
1483        ven_req.wValue = (u16) (gpio_bit >> 16 & 0xffff);
1484
1485        /* set request */
1486        if (!request) {
1487                if (direction)
1488                        ven_req.bRequest = VRT_GET_GPIO;        /* 0x9 gpio */
1489                else
1490                        ven_req.bRequest = VRT_SET_GPIO;        /* 0x8 gpio */
1491        } else {
1492                if (direction)
1493                        ven_req.bRequest = VRT_GET_GPIE;        /* 0xb gpie */
1494                else
1495                        ven_req.bRequest = VRT_SET_GPIE;        /* 0xa gpie */
1496        }
1497
1498        /* set index value */
1499        ven_req.wIndex = (u16) (gpio_bit & 0xffff);
1500
1501        /* set wLength value */
1502        ven_req.wLength = len;
1503
1504        /* set bData value */
1505        ven_req.bData = 0;
1506
1507        /* set the buffer for read / write */
1508        ven_req.pBuff = gpio_val;
1509
1510        /* set the direction */
1511        if (direction) {
1512                ven_req.direction = USB_DIR_IN;
1513                memset(ven_req.pBuff, 0x00, ven_req.wLength);
1514        } else
1515                ven_req.direction = USB_DIR_OUT;
1516
1517
1518        /* call common vendor command request */
1519        status = cx231xx_send_vendor_cmd(dev, &ven_req);
1520        if (status < 0) {
1521                dev_err(dev->dev, "%s: failed with status -%d\n",
1522                        __func__, status);
1523        }
1524
1525        return status;
1526}
1527EXPORT_SYMBOL_GPL(cx231xx_send_gpio_cmd);
1528
1529/*****************************************************************
1530 *    C O N T R O L - Register R E A D / W R I T E functions     *
1531 *****************************************************************/
1532int cx231xx_mode_register(struct cx231xx *dev, u16 address, u32 mode)
1533{
1534        u8 value[4] = { 0x0, 0x0, 0x0, 0x0 };
1535        u32 tmp = 0;
1536        int status = 0;
1537
1538        status =
1539            cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, address, value, 4);
1540        if (status < 0)
1541                return status;
1542
1543        tmp = le32_to_cpu(*((__le32 *) value));
1544        tmp |= mode;
1545
1546        value[0] = (u8) tmp;
1547        value[1] = (u8) (tmp >> 8);
1548        value[2] = (u8) (tmp >> 16);
1549        value[3] = (u8) (tmp >> 24);
1550
1551        status =
1552            cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, address, value, 4);
1553
1554        return status;
1555}
1556
1557/*****************************************************************
1558 *            I 2 C Internal C O N T R O L   functions           *
1559 *****************************************************************/
1560int cx231xx_read_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1561                          u8 saddr_len, u32 *data, u8 data_len, int master)
1562{
1563        int status = 0;
1564        struct cx231xx_i2c_xfer_data req_data;
1565        u8 value[64] = "0";
1566
1567        if (saddr_len == 0)
1568                saddr = 0;
1569        else if (saddr_len == 1)
1570                saddr &= 0xff;
1571
1572        /* prepare xfer_data struct */
1573        req_data.dev_addr = dev_addr >> 1;
1574        req_data.direction = I2C_M_RD;
1575        req_data.saddr_len = saddr_len;
1576        req_data.saddr_dat = saddr;
1577        req_data.buf_size = data_len;
1578        req_data.p_buffer = (u8 *) value;
1579
1580        /* usb send command */
1581        if (master == 0)
1582                status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1583                                         &req_data);
1584        else if (master == 1)
1585                status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1586                                         &req_data);
1587        else if (master == 2)
1588                status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1589                                         &req_data);
1590
1591        if (status >= 0) {
1592                /* Copy the data read back to main buffer */
1593                if (data_len == 1)
1594                        *data = value[0];
1595                else if (data_len == 4)
1596                        *data =
1597                            value[0] | value[1] << 8 | value[2] << 16 | value[3]
1598                            << 24;
1599                else if (data_len > 4)
1600                        *data = value[saddr];
1601        }
1602
1603        return status;
1604}
1605
1606int cx231xx_write_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1607                           u8 saddr_len, u32 data, u8 data_len, int master)
1608{
1609        int status = 0;
1610        u8 value[4] = { 0, 0, 0, 0 };
1611        struct cx231xx_i2c_xfer_data req_data;
1612
1613        value[0] = (u8) data;
1614        value[1] = (u8) (data >> 8);
1615        value[2] = (u8) (data >> 16);
1616        value[3] = (u8) (data >> 24);
1617
1618        if (saddr_len == 0)
1619                saddr = 0;
1620        else if (saddr_len == 1)
1621                saddr &= 0xff;
1622
1623        /* prepare xfer_data struct */
1624        req_data.dev_addr = dev_addr >> 1;
1625        req_data.direction = 0;
1626        req_data.saddr_len = saddr_len;
1627        req_data.saddr_dat = saddr;
1628        req_data.buf_size = data_len;
1629        req_data.p_buffer = value;
1630
1631        /* usb send command */
1632        if (master == 0)
1633                status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0],
1634                                 &req_data);
1635        else if (master == 1)
1636                status = dev->cx231xx_send_usb_command(&dev->i2c_bus[1],
1637                                 &req_data);
1638        else if (master == 2)
1639                status = dev->cx231xx_send_usb_command(&dev->i2c_bus[2],
1640                                 &req_data);
1641
1642        return status;
1643}
1644
1645int cx231xx_read_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1646                          u8 saddr_len, u32 *data, u8 data_len)
1647{
1648        int status = 0;
1649        struct cx231xx_i2c_xfer_data req_data;
1650        u8 value[4] = { 0, 0, 0, 0 };
1651
1652        if (saddr_len == 0)
1653                saddr = 0;
1654        else if (saddr_len == 1)
1655                saddr &= 0xff;
1656
1657        /* prepare xfer_data struct */
1658        req_data.dev_addr = dev_addr >> 1;
1659        req_data.direction = I2C_M_RD;
1660        req_data.saddr_len = saddr_len;
1661        req_data.saddr_dat = saddr;
1662        req_data.buf_size = data_len;
1663        req_data.p_buffer = (u8 *) value;
1664
1665        /* usb send command */
1666        status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1667
1668        if (status >= 0) {
1669                /* Copy the data read back to main buffer */
1670                if (data_len == 1)
1671                        *data = value[0];
1672                else
1673                        *data =
1674                            value[0] | value[1] << 8 | value[2] << 16 | value[3]
1675                            << 24;
1676        }
1677
1678        return status;
1679}
1680
1681int cx231xx_write_i2c_data(struct cx231xx *dev, u8 dev_addr, u16 saddr,
1682                           u8 saddr_len, u32 data, u8 data_len)
1683{
1684        int status = 0;
1685        u8 value[4] = { 0, 0, 0, 0 };
1686        struct cx231xx_i2c_xfer_data req_data;
1687
1688        value[0] = (u8) data;
1689        value[1] = (u8) (data >> 8);
1690        value[2] = (u8) (data >> 16);
1691        value[3] = (u8) (data >> 24);
1692
1693        if (saddr_len == 0)
1694                saddr = 0;
1695        else if (saddr_len == 1)
1696                saddr &= 0xff;
1697
1698        /* prepare xfer_data struct */
1699        req_data.dev_addr = dev_addr >> 1;
1700        req_data.direction = 0;
1701        req_data.saddr_len = saddr_len;
1702        req_data.saddr_dat = saddr;
1703        req_data.buf_size = data_len;
1704        req_data.p_buffer = value;
1705
1706        /* usb send command */
1707        status = dev->cx231xx_send_usb_command(&dev->i2c_bus[0], &req_data);
1708
1709        return status;
1710}
1711
1712int cx231xx_reg_mask_write(struct cx231xx *dev, u8 dev_addr, u8 size,
1713                           u16 register_address, u8 bit_start, u8 bit_end,
1714                           u32 value)
1715{
1716        int status = 0;
1717        u32 tmp;
1718        u32 mask = 0;
1719        int i;
1720
1721        if (bit_start > (size - 1) || bit_end > (size - 1))
1722                return -1;
1723
1724        if (size == 8) {
1725                status =
1726                    cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1727                                          &tmp, 1);
1728        } else {
1729                status =
1730                    cx231xx_read_i2c_data(dev, dev_addr, register_address, 2,
1731                                          &tmp, 4);
1732        }
1733
1734        if (status < 0)
1735                return status;
1736
1737        mask = 1 << bit_end;
1738        for (i = bit_end; i > bit_start && i > 0; i--)
1739                mask = mask + (1 << (i - 1));
1740
1741        value <<= bit_start;
1742
1743        if (size == 8) {
1744                tmp &= ~mask;
1745                tmp |= value;
1746                tmp &= 0xff;
1747                status =
1748                    cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1749                                           tmp, 1);
1750        } else {
1751                tmp &= ~mask;
1752                tmp |= value;
1753                status =
1754                    cx231xx_write_i2c_data(dev, dev_addr, register_address, 2,
1755                                           tmp, 4);
1756        }
1757
1758        return status;
1759}
1760
1761int cx231xx_read_modify_write_i2c_dword(struct cx231xx *dev, u8 dev_addr,
1762                                        u16 saddr, u32 mask, u32 value)
1763{
1764        u32 temp;
1765        int status = 0;
1766
1767        status = cx231xx_read_i2c_data(dev, dev_addr, saddr, 2, &temp, 4);
1768
1769        if (status < 0)
1770                return status;
1771
1772        temp &= ~mask;
1773        temp |= value;
1774
1775        status = cx231xx_write_i2c_data(dev, dev_addr, saddr, 2, temp, 4);
1776
1777        return status;
1778}
1779
1780u32 cx231xx_set_field(u32 field_mask, u32 data)
1781{
1782        u32 temp;
1783
1784        for (temp = field_mask; (temp & 1) == 0; temp >>= 1)
1785                data <<= 1;
1786
1787        return data;
1788}
1789