kernel/drivers/media/pci/saa7134/saa7134-go7007.c

   1 /*
   2  * Copyright (C) 2005-2006 Micronas USA Inc.
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License (Version 2) as
   6  * published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  */
  13
  14 #include <linux/module.h>
  15 #include <linux/kernel.h>
  16 #include <linux/init.h>
  17 #include <linux/spinlock.h>
  18 #include <linux/wait.h>
  19 #include <linux/list.h>
  20 #include <linux/slab.h>
  21 #include <linux/time.h>
  22 #include <linux/mm.h>
  23 #include <linux/usb.h>
  24 #include <linux/i2c.h>
  25 #include <asm/byteorder.h>
  26 #include <media/v4l2-common.h>
  27 #include <media/v4l2-device.h>
  28 #include <media/v4l2-subdev.h>
  29
  30 #include "saa7134.h"
  31 #include "saa7134-reg.h"
  32 #include "go7007-priv.h"
  33
  34 /*#define GO7007_HPI_DEBUG*/
  35
  36 enum hpi_address {
  37         HPI_ADDR_VIDEO_BUFFER = 0xe4,
  38         HPI_ADDR_INIT_BUFFER = 0xea,
  39         HPI_ADDR_INTR_RET_VALUE = 0xee,
  40         HPI_ADDR_INTR_RET_DATA = 0xec,
  41         HPI_ADDR_INTR_STATUS = 0xf4,
  42         HPI_ADDR_INTR_WR_PARAM = 0xf6,
  43         HPI_ADDR_INTR_WR_INDEX = 0xf8,
  44 };
  45
  46 enum gpio_command {
  47         GPIO_COMMAND_RESET = 0x00, /* 000b */
  48         GPIO_COMMAND_REQ1  = 0x04, /* 001b */
  49         GPIO_COMMAND_WRITE = 0x20, /* 010b */
  50         GPIO_COMMAND_REQ2  = 0x24, /* 011b */
  51         GPIO_COMMAND_READ  = 0x80, /* 100b */
  52         GPIO_COMMAND_VIDEO = 0x84, /* 101b */
  53         GPIO_COMMAND_IDLE  = 0xA0, /* 110b */
  54         GPIO_COMMAND_ADDR  = 0xA4, /* 111b */
  55 };
  56
  57 struct saa7134_go7007 {
  58         struct v4l2_subdev sd;
  59         struct saa7134_dev *dev;
  60         u8 *top;
  61         u8 *bottom;
  62         dma_addr_t top_dma;
  63         dma_addr_t bottom_dma;
  64 };
  65
  66 static inline struct saa7134_go7007 *to_state(struct v4l2_subdev *sd)
  67 {
  68         return container_of(sd, struct saa7134_go7007, sd);
  69 }
  70
  71 static const struct go7007_board_info board_voyager = {
  72         .flags           = 0,
  73         .sensor_flags    = GO7007_SENSOR_656 |
  74                                 GO7007_SENSOR_VALID_ENABLE |
  75                                 GO7007_SENSOR_TV |
  76                                 GO7007_SENSOR_VBI,
  77         .audio_flags    = GO7007_AUDIO_I2S_MODE_1 |
  78                                 GO7007_AUDIO_WORD_16,
  79         .audio_rate      = 48000,
  80         .audio_bclk_div  = 8,
  81         .audio_main_div  = 2,
  82         .hpi_buffer_cap  = 7,
  83         .num_inputs      = 1,
  84         .inputs          = {
  85                 {
  86                         .name           = "SAA7134",
  87                 },
  88         },
  89 };
  90
  91 /********************* Driver for GPIO HPI interface *********************/
  92
  93 static int gpio_write(struct saa7134_dev *dev, u8 addr, u16 data)
  94 {
  95         saa_writeb(SAA7134_GPIO_GPMODE0, 0xff);
  96
  97         /* Write HPI address */
  98         saa_writeb(SAA7134_GPIO_GPSTATUS0, addr);
  99         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_ADDR);
 100         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
 101
 102         /* Write low byte */
 103         saa_writeb(SAA7134_GPIO_GPSTATUS0, data & 0xff);
 104         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_WRITE);
 105         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
 106
 107         /* Write high byte */
 108         saa_writeb(SAA7134_GPIO_GPSTATUS0, data >> 8);
 109         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_WRITE);
 110         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
 111
 112         return 0;
 113 }
 114
 115 static int gpio_read(struct saa7134_dev *dev, u8 addr, u16 *data)
 116 {
 117         saa_writeb(SAA7134_GPIO_GPMODE0, 0xff);
 118
 119         /* Write HPI address */
 120         saa_writeb(SAA7134_GPIO_GPSTATUS0, addr);
 121         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_ADDR);
 122         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
 123
 124         saa_writeb(SAA7134_GPIO_GPMODE0, 0x00);
 125
 126         /* Read low byte */
 127         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_READ);
 128         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 129         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 130         *data = saa_readb(SAA7134_GPIO_GPSTATUS0);
 131         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
 132
 133         /* Read high byte */
 134         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_READ);
 135         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 136         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 137         *data |= saa_readb(SAA7134_GPIO_GPSTATUS0) << 8;
 138         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
 139
 140         return 0;
 141 }
 142
 143 static int saa7134_go7007_interface_reset(struct go7007 *go)
 144 {
 145         struct saa7134_go7007 *saa = go->hpi_context;
 146         struct saa7134_dev *dev = saa->dev;
 147         u16 intr_val, intr_data;
 148         int count = 20;
 149
 150         saa_clearb(SAA7134_TS_PARALLEL, 0x80); /* Disable TS interface */
 151         saa_writeb(SAA7134_GPIO_GPMODE2, 0xa4);
 152         saa_writeb(SAA7134_GPIO_GPMODE0, 0xff);
 153
 154         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_REQ1);
 155         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_RESET);
 156         msleep(1);
 157         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_REQ1);
 158         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_REQ2);
 159         msleep(10);
 160
 161         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 162         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 163
 164         saa_readb(SAA7134_GPIO_GPSTATUS2);
 165         /*pr_debug("status is %s\n", saa_readb(SAA7134_GPIO_GPSTATUS2) & 0x40 ? "OK" : "not OK"); */
 166
 167         /* enter command mode...(?) */
 168         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_REQ1);
 169         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_REQ2);
 170
 171         do {
 172                 saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 173                 saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 174                 saa_readb(SAA7134_GPIO_GPSTATUS2);
 175                 /*pr_info("gpio is %08x\n", saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2)); */
 176         } while (--count > 0);
 177
 178         /* Wait for an interrupt to indicate successful hardware reset */
 179         if (go7007_read_interrupt(go, &intr_val, &intr_data) < 0 ||
 180                         (intr_val & ~0x1) != 0x55aa) {
 181                 pr_err("saa7134-go7007: unable to reset the GO7007\n");
 182                 return -1;
 183         }
 184         return 0;
 185 }
 186
 187 static int saa7134_go7007_write_interrupt(struct go7007 *go, int addr, int data)
 188 {
 189         struct saa7134_go7007 *saa = go->hpi_context;
 190         struct saa7134_dev *dev = saa->dev;
 191         int i;
 192         u16 status_reg;
 193
 194 #ifdef GO7007_HPI_DEBUG
 195         pr_debug("saa7134-go7007: WriteInterrupt: %04x %04x\n", addr, data);
 196 #endif
 197
 198         for (i = 0; i < 100; ++i) {
 199                 gpio_read(dev, HPI_ADDR_INTR_STATUS, &status_reg);
 200                 if (!(status_reg & 0x0010))
 201                         break;
 202                 msleep(10);
 203         }
 204         if (i == 100) {
 205                 pr_err("saa7134-go7007: device is hung, status reg = 0x%04x\n",
 206                         status_reg);
 207                 return -1;
 208         }
 209         gpio_write(dev, HPI_ADDR_INTR_WR_PARAM, data);
 210         gpio_write(dev, HPI_ADDR_INTR_WR_INDEX, addr);
 211
 212         return 0;
 213 }
 214
 215 static int saa7134_go7007_read_interrupt(struct go7007 *go)
 216 {
 217         struct saa7134_go7007 *saa = go->hpi_context;
 218         struct saa7134_dev *dev = saa->dev;
 219
 220         /* XXX we need to wait if there is no interrupt available */
 221         go->interrupt_available = 1;
 222         gpio_read(dev, HPI_ADDR_INTR_RET_VALUE, &go->interrupt_value);
 223         gpio_read(dev, HPI_ADDR_INTR_RET_DATA, &go->interrupt_data);
 224 #ifdef GO7007_HPI_DEBUG
 225         pr_debug("saa7134-go7007: ReadInterrupt: %04x %04x\n",
 226                         go->interrupt_value, go->interrupt_data);
 227 #endif
 228         return 0;
 229 }
 230
 231 static void saa7134_go7007_irq_ts_done(struct saa7134_dev *dev,
 232                                                 unsigned long status)
 233 {
 234         struct go7007 *go = video_get_drvdata(dev->empress_dev);
 235         struct saa7134_go7007 *saa = go->hpi_context;
 236
 237         if (!vb2_is_streaming(&go->vidq))
 238                 return;
 239         if (0 != (status & 0x000f0000))
 240                 pr_debug("saa7134-go7007: irq: lost %ld\n",
 241                                 (status >> 16) & 0x0f);
 242         if (status & 0x100000) {
 243                 dma_sync_single_for_cpu(&dev->pci->dev,
 244                                         saa->bottom_dma, PAGE_SIZE, DMA_FROM_DEVICE);
 245                 go7007_parse_video_stream(go, saa->bottom, PAGE_SIZE);
 246                 saa_writel(SAA7134_RS_BA2(5), saa->bottom_dma);
 247         } else {
 248                 dma_sync_single_for_cpu(&dev->pci->dev,
 249                                         saa->top_dma, PAGE_SIZE, DMA_FROM_DEVICE);
 250                 go7007_parse_video_stream(go, saa->top, PAGE_SIZE);
 251                 saa_writel(SAA7134_RS_BA1(5), saa->top_dma);
 252         }
 253 }
 254
 255 static int saa7134_go7007_stream_start(struct go7007 *go)
 256 {
 257         struct saa7134_go7007 *saa = go->hpi_context;
 258         struct saa7134_dev *dev = saa->dev;
 259
 260         saa->top_dma = dma_map_page(&dev->pci->dev, virt_to_page(saa->top),
 261                         0, PAGE_SIZE, DMA_FROM_DEVICE);
 262         if (dma_mapping_error(&dev->pci->dev, saa->top_dma))
 263                 return -ENOMEM;
 264         saa->bottom_dma = dma_map_page(&dev->pci->dev,
 265                         virt_to_page(saa->bottom),
 266                         0, PAGE_SIZE, DMA_FROM_DEVICE);
 267         if (dma_mapping_error(&dev->pci->dev, saa->bottom_dma)) {
 268                 dma_unmap_page(&dev->pci->dev, saa->top_dma, PAGE_SIZE,
 269                                 DMA_FROM_DEVICE);
 270                 return -ENOMEM;
 271         }
 272
 273         saa_writel(SAA7134_VIDEO_PORT_CTRL0 >> 2, 0xA300B000);
 274         saa_writel(SAA7134_VIDEO_PORT_CTRL4 >> 2, 0x40000200);
 275
 276         /* Set HPI interface for video */
 277         saa_writeb(SAA7134_GPIO_GPMODE0, 0xff);
 278         saa_writeb(SAA7134_GPIO_GPSTATUS0, HPI_ADDR_VIDEO_BUFFER);
 279         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_ADDR);
 280         saa_writeb(SAA7134_GPIO_GPMODE0, 0x00);
 281
 282         /* Enable TS interface */
 283         saa_writeb(SAA7134_TS_PARALLEL, 0xe6);
 284
 285         /* Reset TS interface */
 286         saa_setb(SAA7134_TS_SERIAL1, 0x01);
 287         saa_clearb(SAA7134_TS_SERIAL1, 0x01);
 288
 289         /* Set up transfer block size */
 290         saa_writeb(SAA7134_TS_PARALLEL_SERIAL, 128 - 1);
 291         saa_writeb(SAA7134_TS_DMA0, (PAGE_SIZE >> 7) - 1);
 292         saa_writeb(SAA7134_TS_DMA1, 0);
 293         saa_writeb(SAA7134_TS_DMA2, 0);
 294
 295         /* Enable video streaming mode */
 296         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_VIDEO);
 297
 298         saa_writel(SAA7134_RS_BA1(5), saa->top_dma);
 299         saa_writel(SAA7134_RS_BA2(5), saa->bottom_dma);
 300         saa_writel(SAA7134_RS_PITCH(5), 128);
 301         saa_writel(SAA7134_RS_CONTROL(5), SAA7134_RS_CONTROL_BURST_MAX);
 302
 303         /* Enable TS FIFO */
 304         saa_setl(SAA7134_MAIN_CTRL, SAA7134_MAIN_CTRL_TE5);
 305
 306         /* Enable DMA IRQ */
 307         saa_setl(SAA7134_IRQ1,
 308                         SAA7134_IRQ1_INTE_RA2_1 | SAA7134_IRQ1_INTE_RA2_0);
 309
 310         return 0;
 311 }
 312
 313 static int saa7134_go7007_stream_stop(struct go7007 *go)
 314 {
 315         struct saa7134_go7007 *saa = go->hpi_context;
 316         struct saa7134_dev *dev;
 317
 318         if (!saa)
 319                 return -EINVAL;
 320         dev = saa->dev;
 321         if (!dev)
 322                 return -EINVAL;
 323
 324         /* Shut down TS FIFO */
 325         saa_clearl(SAA7134_MAIN_CTRL, SAA7134_MAIN_CTRL_TE5);
 326
 327         /* Disable DMA IRQ */
 328         saa_clearl(SAA7134_IRQ1,
 329                         SAA7134_IRQ1_INTE_RA2_1 | SAA7134_IRQ1_INTE_RA2_0);
 330
 331         /* Disable TS interface */
 332         saa_clearb(SAA7134_TS_PARALLEL, 0x80);
 333
 334         dma_unmap_page(&dev->pci->dev, saa->top_dma, PAGE_SIZE,
 335                         DMA_FROM_DEVICE);
 336         dma_unmap_page(&dev->pci->dev, saa->bottom_dma, PAGE_SIZE,
 337                         DMA_FROM_DEVICE);
 338
 339         return 0;
 340 }
 341
 342 static int saa7134_go7007_send_firmware(struct go7007 *go, u8 *data, int len)
 343 {
 344         struct saa7134_go7007 *saa = go->hpi_context;
 345         struct saa7134_dev *dev = saa->dev;
 346         u16 status_reg;
 347         int i;
 348
 349 #ifdef GO7007_HPI_DEBUG
 350         pr_debug("saa7134-go7007: DownloadBuffer sending %d bytes\n", len);
 351 #endif
 352
 353         while (len > 0) {
 354                 i = len > 64 ? 64 : len;
 355                 saa_writeb(SAA7134_GPIO_GPMODE0, 0xff);
 356                 saa_writeb(SAA7134_GPIO_GPSTATUS0, HPI_ADDR_INIT_BUFFER);
 357                 saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_ADDR);
 358                 saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
 359                 while (i-- > 0) {
 360                         saa_writeb(SAA7134_GPIO_GPSTATUS0, *data);
 361                         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_WRITE);
 362                         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
 363                         ++data;
 364                         --len;
 365                 }
 366                 for (i = 0; i < 100; ++i) {
 367                         gpio_read(dev, HPI_ADDR_INTR_STATUS, &status_reg);
 368                         if (!(status_reg & 0x0002))
 369                                 break;
 370                 }
 371                 if (i == 100) {
 372                         pr_err("saa7134-go7007: device is hung, status reg = 0x%04x\n",
 373                                status_reg);
 374                         return -1;
 375                 }
 376         }
 377         return 0;
 378 }
 379
 380 static struct go7007_hpi_ops saa7134_go7007_hpi_ops = {
 381         .interface_reset        = saa7134_go7007_interface_reset,
 382         .write_interrupt        = saa7134_go7007_write_interrupt,
 383         .read_interrupt         = saa7134_go7007_read_interrupt,
 384         .stream_start           = saa7134_go7007_stream_start,
 385         .stream_stop            = saa7134_go7007_stream_stop,
 386         .send_firmware          = saa7134_go7007_send_firmware,
 387 };
 388 MODULE_FIRMWARE("go7007/go7007tv.bin");
 389
 390 /* --------------------------------------------------------------------------*/
 391
 392 static int saa7134_go7007_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)
 393 {
 394 #if 0
 395         struct saa7134_go7007 *saa = to_state(sd);
 396         struct saa7134_dev *dev = saa->dev;
 397
 398         return saa7134_s_std_internal(dev, NULL, norm);
 399 #else
 400         return 0;
 401 #endif
 402 }
 403
 404 static const struct v4l2_subdev_video_ops saa7134_go7007_video_ops = {
 405         .s_std = saa7134_go7007_s_std,
 406 };
 407
 408 static const struct v4l2_subdev_ops saa7134_go7007_sd_ops = {
 409         .video = &saa7134_go7007_video_ops,
 410 };
 411
 412 /* --------------------------------------------------------------------------*/
 413
 414
 415 /********************* Add/remove functions *********************/
 416
 417 static int saa7134_go7007_init(struct saa7134_dev *dev)
 418 {
 419         struct go7007 *go;
 420         struct saa7134_go7007 *saa;
 421         struct v4l2_subdev *sd;
 422
 423         pr_debug("saa7134-go7007: probing new SAA713X board\n");
 424
 425         go = go7007_alloc(&board_voyager, &dev->pci->dev);
 426         if (go == NULL)
 427                 return -ENOMEM;
 428
 429         saa = kzalloc(sizeof(struct saa7134_go7007), GFP_KERNEL);
 430         if (saa == NULL) {
 431                 kfree(go);
 432                 return -ENOMEM;
 433         }
 434
 435         go->board_id = GO7007_BOARDID_PCI_VOYAGER;
 436         snprintf(go->bus_info, sizeof(go->bus_info), "PCI:%s", pci_name(dev->pci));
 437         strlcpy(go->name, saa7134_boards[dev->board].name, sizeof(go->name));
 438         go->hpi_ops = &saa7134_go7007_hpi_ops;
 439         go->hpi_context = saa;
 440         saa->dev = dev;
 441
 442         /* Init the subdevice interface */
 443         sd = &saa->sd;
 444         v4l2_subdev_init(sd, &saa7134_go7007_sd_ops);
 445         v4l2_set_subdevdata(sd, saa);
 446         strncpy(sd->name, "saa7134-go7007", sizeof(sd->name));
 447
 448         /* Allocate a couple pages for receiving the compressed stream */
 449         saa->top = (u8 *)get_zeroed_page(GFP_KERNEL);
 450         if (!saa->top)
 451                 goto allocfail;
 452         saa->bottom = (u8 *)get_zeroed_page(GFP_KERNEL);
 453         if (!saa->bottom)
 454                 goto allocfail;
 455
 456         /* Boot the GO7007 */
 457         if (go7007_boot_encoder(go, go->board_info->flags &
 458                                         GO7007_BOARD_USE_ONBOARD_I2C) < 0)
 459                 goto allocfail;
 460
 461         /* Do any final GO7007 initialization, then register the
 462          * V4L2 and ALSA interfaces */
 463         if (go7007_register_encoder(go, go->board_info->num_i2c_devs) < 0)
 464                 goto allocfail;
 465
 466         /* Register the subdevice interface with the go7007 device */
 467         if (v4l2_device_register_subdev(&go->v4l2_dev, sd) < 0)
 468                 pr_info("saa7134-go7007: register subdev failed\n");
 469
 470         dev->empress_dev = &go->vdev;
 471
 472         go->status = STATUS_ONLINE;
 473         return 0;
 474
 475 allocfail:
 476         if (saa->top)
 477                 free_page((unsigned long)saa->top);
 478         if (saa->bottom)
 479                 free_page((unsigned long)saa->bottom);
 480         kfree(saa);
 481         kfree(go);
 482         return -ENOMEM;
 483 }
 484
 485 static int saa7134_go7007_fini(struct saa7134_dev *dev)
 486 {
 487         struct go7007 *go;
 488         struct saa7134_go7007 *saa;
 489
 490         if (NULL == dev->empress_dev)
 491                 return 0;
 492
 493         go = video_get_drvdata(dev->empress_dev);
 494         if (go->audio_enabled)
 495                 go7007_snd_remove(go);
 496
 497         saa = go->hpi_context;
 498         go->status = STATUS_SHUTDOWN;
 499         free_page((unsigned long)saa->top);
 500         free_page((unsigned long)saa->bottom);
 501         v4l2_device_unregister_subdev(&saa->sd);
 502         kfree(saa);
 503         video_unregister_device(&go->vdev);
 504
 505         v4l2_device_put(&go->v4l2_dev);
 506         dev->empress_dev = NULL;
 507
 508         return 0;
 509 }
 510
 511 static struct saa7134_mpeg_ops saa7134_go7007_ops = {
 512         .type          = SAA7134_MPEG_GO7007,
 513         .init          = saa7134_go7007_init,
 514         .fini          = saa7134_go7007_fini,
 515         .irq_ts_done   = saa7134_go7007_irq_ts_done,
 516 };
 517
 518 static int __init saa7134_go7007_mod_init(void)
 519 {
 520         return saa7134_ts_register(&saa7134_go7007_ops);
 521 }
 522
 523 static void __exit saa7134_go7007_mod_cleanup(void)
 524 {
 525         saa7134_ts_unregister(&saa7134_go7007_ops);
 526 }
 527
 528 module_init(saa7134_go7007_mod_init);
 529 module_exit(saa7134_go7007_mod_cleanup);
 530
 531 MODULE_LICENSE("GPL v2");