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 "saa7134.h"
  15 #include "saa7134-reg.h"
  16
  17 #include <linux/module.h>
  18 #include <linux/kernel.h>
  19 #include <linux/init.h>
  20 #include <linux/spinlock.h>
  21 #include <linux/wait.h>
  22 #include <linux/list.h>
  23 #include <linux/slab.h>
  24 #include <linux/time.h>
  25 #include <linux/mm.h>
  26 #include <linux/usb.h>
  27 #include <linux/i2c.h>
  28 #include <asm/byteorder.h>
  29 #include <media/v4l2-common.h>
  30 #include <media/v4l2-device.h>
  31 #include <media/v4l2-subdev.h>
  32
  33 #include "go7007-priv.h"
  34
  35 /*#define GO7007_HPI_DEBUG*/
  36
  37 enum hpi_address {
  38         HPI_ADDR_VIDEO_BUFFER = 0xe4,
  39         HPI_ADDR_INIT_BUFFER = 0xea,
  40         HPI_ADDR_INTR_RET_VALUE = 0xee,
  41         HPI_ADDR_INTR_RET_DATA = 0xec,
  42         HPI_ADDR_INTR_STATUS = 0xf4,
  43         HPI_ADDR_INTR_WR_PARAM = 0xf6,
  44         HPI_ADDR_INTR_WR_INDEX = 0xf8,
  45 };
  46
  47 enum gpio_command {
  48         GPIO_COMMAND_RESET = 0x00, /* 000b */
  49         GPIO_COMMAND_REQ1  = 0x04, /* 001b */
  50         GPIO_COMMAND_WRITE = 0x20, /* 010b */
  51         GPIO_COMMAND_REQ2  = 0x24, /* 011b */
  52         GPIO_COMMAND_READ  = 0x80, /* 100b */
  53         GPIO_COMMAND_VIDEO = 0x84, /* 101b */
  54         GPIO_COMMAND_IDLE  = 0xA0, /* 110b */
  55         GPIO_COMMAND_ADDR  = 0xA4, /* 111b */
  56 };
  57
  58 struct saa7134_go7007 {
  59         struct v4l2_subdev sd;
  60         struct saa7134_dev *dev;
  61         u8 *top;
  62         u8 *bottom;
  63         dma_addr_t top_dma;
  64         dma_addr_t bottom_dma;
  65 };
  66
  67 static inline struct saa7134_go7007 *to_state(struct v4l2_subdev *sd)
  68 {
  69         return container_of(sd, struct saa7134_go7007, sd);
  70 }
  71
  72 static const struct go7007_board_info board_voyager = {
  73         .flags           = 0,
  74         .sensor_flags    = GO7007_SENSOR_656 |
  75                                 GO7007_SENSOR_VALID_ENABLE |
  76                                 GO7007_SENSOR_TV |
  77                                 GO7007_SENSOR_VBI,
  78         .audio_flags    = GO7007_AUDIO_I2S_MODE_1 |
  79                                 GO7007_AUDIO_WORD_16,
  80         .audio_rate      = 48000,
  81         .audio_bclk_div  = 8,
  82         .audio_main_div  = 2,
  83         .hpi_buffer_cap  = 7,
  84         .num_inputs      = 1,
  85         .inputs          = {
  86                 {
  87                         .name           = "SAA7134",
  88                 },
  89         },
  90 };
  91
  92 /********************* Driver for GPIO HPI interface *********************/
  93
  94 static int gpio_write(struct saa7134_dev *dev, u8 addr, u16 data)
  95 {
  96         saa_writeb(SAA7134_GPIO_GPMODE0, 0xff);
  97
  98         /* Write HPI address */
  99         saa_writeb(SAA7134_GPIO_GPSTATUS0, addr);
 100         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_ADDR);
 101         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
 102
 103         /* Write low byte */
 104         saa_writeb(SAA7134_GPIO_GPSTATUS0, data & 0xff);
 105         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_WRITE);
 106         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
 107
 108         /* Write high byte */
 109         saa_writeb(SAA7134_GPIO_GPSTATUS0, data >> 8);
 110         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_WRITE);
 111         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
 112
 113         return 0;
 114 }
 115
 116 static int gpio_read(struct saa7134_dev *dev, u8 addr, u16 *data)
 117 {
 118         saa_writeb(SAA7134_GPIO_GPMODE0, 0xff);
 119
 120         /* Write HPI address */
 121         saa_writeb(SAA7134_GPIO_GPSTATUS0, addr);
 122         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_ADDR);
 123         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
 124
 125         saa_writeb(SAA7134_GPIO_GPMODE0, 0x00);
 126
 127         /* Read low byte */
 128         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_READ);
 129         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 130         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 131         *data = saa_readb(SAA7134_GPIO_GPSTATUS0);
 132         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
 133
 134         /* Read high byte */
 135         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_READ);
 136         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 137         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 138         *data |= saa_readb(SAA7134_GPIO_GPSTATUS0) << 8;
 139         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
 140
 141         return 0;
 142 }
 143
 144 static int saa7134_go7007_interface_reset(struct go7007 *go)
 145 {
 146         struct saa7134_go7007 *saa = go->hpi_context;
 147         struct saa7134_dev *dev = saa->dev;
 148         u16 intr_val, intr_data;
 149         int count = 20;
 150
 151         saa_clearb(SAA7134_TS_PARALLEL, 0x80); /* Disable TS interface */
 152         saa_writeb(SAA7134_GPIO_GPMODE2, 0xa4);
 153         saa_writeb(SAA7134_GPIO_GPMODE0, 0xff);
 154
 155         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_REQ1);
 156         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_RESET);
 157         msleep(1);
 158         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_REQ1);
 159         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_REQ2);
 160         msleep(10);
 161
 162         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 163         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 164
 165         saa_readb(SAA7134_GPIO_GPSTATUS2);
 166         /*pr_debug("status is %s\n", saa_readb(SAA7134_GPIO_GPSTATUS2) & 0x40 ? "OK" : "not OK"); */
 167
 168         /* enter command mode...(?) */
 169         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_REQ1);
 170         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_REQ2);
 171
 172         do {
 173                 saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 174                 saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 175                 saa_readb(SAA7134_GPIO_GPSTATUS2);
 176                 /*pr_info("gpio is %08x\n", saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2)); */
 177         } while (--count > 0);
 178
 179         /* Wait for an interrupt to indicate successful hardware reset */
 180         if (go7007_read_interrupt(go, &intr_val, &intr_data) < 0 ||
 181                         (intr_val & ~0x1) != 0x55aa) {
 182                 pr_err("saa7134-go7007: unable to reset the GO7007\n");
 183                 return -1;
 184         }
 185         return 0;
 186 }
 187
 188 static int saa7134_go7007_write_interrupt(struct go7007 *go, int addr, int data)
 189 {
 190         struct saa7134_go7007 *saa = go->hpi_context;
 191         struct saa7134_dev *dev = saa->dev;
 192         int i;
 193         u16 status_reg;
 194
 195 #ifdef GO7007_HPI_DEBUG
 196         pr_debug("saa7134-go7007: WriteInterrupt: %04x %04x\n", addr, data);
 197 #endif
 198
 199         for (i = 0; i < 100; ++i) {
 200                 gpio_read(dev, HPI_ADDR_INTR_STATUS, &status_reg);
 201                 if (!(status_reg & 0x0010))
 202                         break;
 203                 msleep(10);
 204         }
 205         if (i == 100) {
 206                 pr_err("saa7134-go7007: device is hung, status reg = 0x%04x\n",
 207                         status_reg);
 208                 return -1;
 209         }
 210         gpio_write(dev, HPI_ADDR_INTR_WR_PARAM, data);
 211         gpio_write(dev, HPI_ADDR_INTR_WR_INDEX, addr);
 212
 213         return 0;
 214 }
 215
 216 static int saa7134_go7007_read_interrupt(struct go7007 *go)
 217 {
 218         struct saa7134_go7007 *saa = go->hpi_context;
 219         struct saa7134_dev *dev = saa->dev;
 220
 221         /* XXX we need to wait if there is no interrupt available */
 222         go->interrupt_available = 1;
 223         gpio_read(dev, HPI_ADDR_INTR_RET_VALUE, &go->interrupt_value);
 224         gpio_read(dev, HPI_ADDR_INTR_RET_DATA, &go->interrupt_data);
 225 #ifdef GO7007_HPI_DEBUG
 226         pr_debug("saa7134-go7007: ReadInterrupt: %04x %04x\n",
 227                         go->interrupt_value, go->interrupt_data);
 228 #endif
 229         return 0;
 230 }
 231
 232 static void saa7134_go7007_irq_ts_done(struct saa7134_dev *dev,
 233                                                 unsigned long status)
 234 {
 235         struct go7007 *go = video_get_drvdata(dev->empress_dev);
 236         struct saa7134_go7007 *saa = go->hpi_context;
 237
 238         if (!vb2_is_streaming(&go->vidq))
 239                 return;
 240         if (0 != (status & 0x000f0000))
 241                 pr_debug("saa7134-go7007: irq: lost %ld\n",
 242                                 (status >> 16) & 0x0f);
 243         if (status & 0x100000) {
 244                 dma_sync_single_for_cpu(&dev->pci->dev,
 245                                         saa->bottom_dma, PAGE_SIZE, DMA_FROM_DEVICE);
 246                 go7007_parse_video_stream(go, saa->bottom, PAGE_SIZE);
 247                 saa_writel(SAA7134_RS_BA2(5), saa->bottom_dma);
 248         } else {
 249                 dma_sync_single_for_cpu(&dev->pci->dev,
 250                                         saa->top_dma, PAGE_SIZE, DMA_FROM_DEVICE);
 251                 go7007_parse_video_stream(go, saa->top, PAGE_SIZE);
 252                 saa_writel(SAA7134_RS_BA1(5), saa->top_dma);
 253         }
 254 }
 255
 256 static int saa7134_go7007_stream_start(struct go7007 *go)
 257 {
 258         struct saa7134_go7007 *saa = go->hpi_context;
 259         struct saa7134_dev *dev = saa->dev;
 260
 261         saa->top_dma = dma_map_page(&dev->pci->dev, virt_to_page(saa->top),
 262                         0, PAGE_SIZE, DMA_FROM_DEVICE);
 263         if (dma_mapping_error(&dev->pci->dev, saa->top_dma))
 264                 return -ENOMEM;
 265         saa->bottom_dma = dma_map_page(&dev->pci->dev,
 266                         virt_to_page(saa->bottom),
 267                         0, PAGE_SIZE, DMA_FROM_DEVICE);
 268         if (dma_mapping_error(&dev->pci->dev, saa->bottom_dma)) {
 269                 dma_unmap_page(&dev->pci->dev, saa->top_dma, PAGE_SIZE,
 270                                 DMA_FROM_DEVICE);
 271                 return -ENOMEM;
 272         }
 273
 274         saa_writel(SAA7134_VIDEO_PORT_CTRL0 >> 2, 0xA300B000);
 275         saa_writel(SAA7134_VIDEO_PORT_CTRL4 >> 2, 0x40000200);
 276
 277         /* Set HPI interface for video */
 278         saa_writeb(SAA7134_GPIO_GPMODE0, 0xff);
 279         saa_writeb(SAA7134_GPIO_GPSTATUS0, HPI_ADDR_VIDEO_BUFFER);
 280         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_ADDR);
 281         saa_writeb(SAA7134_GPIO_GPMODE0, 0x00);
 282
 283         /* Enable TS interface */
 284         saa_writeb(SAA7134_TS_PARALLEL, 0xe6);
 285
 286         /* Reset TS interface */
 287         saa_setb(SAA7134_TS_SERIAL1, 0x01);
 288         saa_clearb(SAA7134_TS_SERIAL1, 0x01);
 289
 290         /* Set up transfer block size */
 291         saa_writeb(SAA7134_TS_PARALLEL_SERIAL, 128 - 1);
 292         saa_writeb(SAA7134_TS_DMA0, ((PAGE_SIZE >> 7) - 1) & 0xff);
 293         saa_writeb(SAA7134_TS_DMA1, (PAGE_SIZE >> 15) & 0xff);
 294         saa_writeb(SAA7134_TS_DMA2, (PAGE_SIZE >> 31) & 0x3f);
 295
 296         /* Enable video streaming mode */
 297         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_VIDEO);
 298
 299         saa_writel(SAA7134_RS_BA1(5), saa->top_dma);
 300         saa_writel(SAA7134_RS_BA2(5), saa->bottom_dma);
 301         saa_writel(SAA7134_RS_PITCH(5), 128);
 302         saa_writel(SAA7134_RS_CONTROL(5), SAA7134_RS_CONTROL_BURST_MAX);
 303
 304         /* Enable TS FIFO */
 305         saa_setl(SAA7134_MAIN_CTRL, SAA7134_MAIN_CTRL_TE5);
 306
 307         /* Enable DMA IRQ */
 308         saa_setl(SAA7134_IRQ1,
 309                         SAA7134_IRQ1_INTE_RA2_1 | SAA7134_IRQ1_INTE_RA2_0);
 310
 311         return 0;
 312 }
 313
 314 static int saa7134_go7007_stream_stop(struct go7007 *go)
 315 {
 316         struct saa7134_go7007 *saa = go->hpi_context;
 317         struct saa7134_dev *dev;
 318
 319         if (!saa)
 320                 return -EINVAL;
 321         dev = saa->dev;
 322         if (!dev)
 323                 return -EINVAL;
 324
 325         /* Shut down TS FIFO */
 326         saa_clearl(SAA7134_MAIN_CTRL, SAA7134_MAIN_CTRL_TE5);
 327
 328         /* Disable DMA IRQ */
 329         saa_clearl(SAA7134_IRQ1,
 330                         SAA7134_IRQ1_INTE_RA2_1 | SAA7134_IRQ1_INTE_RA2_0);
 331
 332         /* Disable TS interface */
 333         saa_clearb(SAA7134_TS_PARALLEL, 0x80);
 334
 335         dma_unmap_page(&dev->pci->dev, saa->top_dma, PAGE_SIZE,
 336                         DMA_FROM_DEVICE);
 337         dma_unmap_page(&dev->pci->dev, saa->bottom_dma, PAGE_SIZE,
 338                         DMA_FROM_DEVICE);
 339
 340         return 0;
 341 }
 342
 343 static int saa7134_go7007_send_firmware(struct go7007 *go, u8 *data, int len)
 344 {
 345         struct saa7134_go7007 *saa = go->hpi_context;
 346         struct saa7134_dev *dev = saa->dev;
 347         u16 status_reg;
 348         int i;
 349
 350 #ifdef GO7007_HPI_DEBUG
 351         pr_debug("saa7134-go7007: DownloadBuffer sending %d bytes\n", len);
 352 #endif
 353
 354         while (len > 0) {
 355                 i = len > 64 ? 64 : len;
 356                 saa_writeb(SAA7134_GPIO_GPMODE0, 0xff);
 357                 saa_writeb(SAA7134_GPIO_GPSTATUS0, HPI_ADDR_INIT_BUFFER);
 358                 saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_ADDR);
 359                 saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
 360                 while (i-- > 0) {
 361                         saa_writeb(SAA7134_GPIO_GPSTATUS0, *data);
 362                         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_WRITE);
 363                         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
 364                         ++data;
 365                         --len;
 366                 }
 367                 for (i = 0; i < 100; ++i) {
 368                         gpio_read(dev, HPI_ADDR_INTR_STATUS, &status_reg);
 369                         if (!(status_reg & 0x0002))
 370                                 break;
 371                 }
 372                 if (i == 100) {
 373                         pr_err("saa7134-go7007: device is hung, status reg = 0x%04x\n",
 374                                status_reg);
 375                         return -1;
 376                 }
 377         }
 378         return 0;
 379 }
 380
 381 static struct go7007_hpi_ops saa7134_go7007_hpi_ops = {
 382         .interface_reset        = saa7134_go7007_interface_reset,
 383         .write_interrupt        = saa7134_go7007_write_interrupt,
 384         .read_interrupt         = saa7134_go7007_read_interrupt,
 385         .stream_start           = saa7134_go7007_stream_start,
 386         .stream_stop            = saa7134_go7007_stream_stop,
 387         .send_firmware          = saa7134_go7007_send_firmware,
 388 };
 389 MODULE_FIRMWARE("go7007/go7007tv.bin");
 390
 391 /* --------------------------------------------------------------------------*/
 392
 393 static int saa7134_go7007_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)
 394 {
 395 #if 0
 396         struct saa7134_go7007 *saa = to_state(sd);
 397         struct saa7134_dev *dev = saa->dev;
 398
 399         return saa7134_s_std_internal(dev, NULL, norm);
 400 #else
 401         return 0;
 402 #endif
 403 }
 404
 405 static const struct v4l2_subdev_video_ops saa7134_go7007_video_ops = {
 406         .s_std = saa7134_go7007_s_std,
 407 };
 408
 409 static const struct v4l2_subdev_ops saa7134_go7007_sd_ops = {
 410         .video = &saa7134_go7007_video_ops,
 411 };
 412
 413 /* --------------------------------------------------------------------------*/
 414
 415
 416 /********************* Add/remove functions *********************/
 417
 418 static int saa7134_go7007_init(struct saa7134_dev *dev)
 419 {
 420         struct go7007 *go;
 421         struct saa7134_go7007 *saa;
 422         struct v4l2_subdev *sd;
 423
 424         pr_debug("saa7134-go7007: probing new SAA713X board\n");
 425
 426         go = go7007_alloc(&board_voyager, &dev->pci->dev);
 427         if (go == NULL)
 428                 return -ENOMEM;
 429
 430         saa = kzalloc(sizeof(struct saa7134_go7007), GFP_KERNEL);
 431         if (saa == NULL) {
 432                 kfree(go);
 433                 return -ENOMEM;
 434         }
 435
 436         go->board_id = GO7007_BOARDID_PCI_VOYAGER;
 437         snprintf(go->bus_info, sizeof(go->bus_info), "PCI:%s", pci_name(dev->pci));
 438         strlcpy(go->name, saa7134_boards[dev->board].name, sizeof(go->name));
 439         go->hpi_ops = &saa7134_go7007_hpi_ops;
 440         go->hpi_context = saa;
 441         saa->dev = dev;
 442
 443         /* Init the subdevice interface */
 444         sd = &saa->sd;
 445         v4l2_subdev_init(sd, &saa7134_go7007_sd_ops);
 446         v4l2_set_subdevdata(sd, saa);
 447         strncpy(sd->name, "saa7134-go7007", sizeof(sd->name));
 448
 449         /* Allocate a couple pages for receiving the compressed stream */
 450         saa->top = (u8 *)get_zeroed_page(GFP_KERNEL);
 451         if (!saa->top)
 452                 goto allocfail;
 453         saa->bottom = (u8 *)get_zeroed_page(GFP_KERNEL);
 454         if (!saa->bottom)
 455                 goto allocfail;
 456
 457         /* Boot the GO7007 */
 458         if (go7007_boot_encoder(go, go->board_info->flags &
 459                                         GO7007_BOARD_USE_ONBOARD_I2C) < 0)
 460                 goto allocfail;
 461
 462         /* Do any final GO7007 initialization, then register the
 463          * V4L2 and ALSA interfaces */
 464         if (go7007_register_encoder(go, go->board_info->num_i2c_devs) < 0)
 465                 goto allocfail;
 466
 467         /* Register the subdevice interface with the go7007 device */
 468         if (v4l2_device_register_subdev(&go->v4l2_dev, sd) < 0)
 469                 pr_info("saa7134-go7007: register subdev failed\n");
 470
 471         dev->empress_dev = &go->vdev;
 472
 473         go->status = STATUS_ONLINE;
 474         return 0;
 475
 476 allocfail:
 477         if (saa->top)
 478                 free_page((unsigned long)saa->top);
 479         if (saa->bottom)
 480                 free_page((unsigned long)saa->bottom);
 481         kfree(saa);
 482         kfree(go);
 483         return -ENOMEM;
 484 }
 485
 486 static int saa7134_go7007_fini(struct saa7134_dev *dev)
 487 {
 488         struct go7007 *go;
 489         struct saa7134_go7007 *saa;
 490
 491         if (NULL == dev->empress_dev)
 492                 return 0;
 493
 494         go = video_get_drvdata(dev->empress_dev);
 495         if (go->audio_enabled)
 496                 go7007_snd_remove(go);
 497
 498         saa = go->hpi_context;
 499         go->status = STATUS_SHUTDOWN;
 500         free_page((unsigned long)saa->top);
 501         free_page((unsigned long)saa->bottom);
 502         v4l2_device_unregister_subdev(&saa->sd);
 503         kfree(saa);
 504         video_unregister_device(&go->vdev);
 505
 506         v4l2_device_put(&go->v4l2_dev);
 507         dev->empress_dev = NULL;
 508
 509         return 0;
 510 }
 511
 512 static struct saa7134_mpeg_ops saa7134_go7007_ops = {
 513         .type          = SAA7134_MPEG_GO7007,
 514         .init          = saa7134_go7007_init,
 515         .fini          = saa7134_go7007_fini,
 516         .irq_ts_done   = saa7134_go7007_irq_ts_done,
 517 };
 518
 519 static int __init saa7134_go7007_mod_init(void)
 520 {
 521         return saa7134_ts_register(&saa7134_go7007_ops);
 522 }
 523
 524 static void __exit saa7134_go7007_mod_cleanup(void)
 525 {
 526         saa7134_ts_unregister(&saa7134_go7007_ops);
 527 }
 528
 529 module_init(saa7134_go7007_mod_init);
 530 module_exit(saa7134_go7007_mod_cleanup);
 531
 532 MODULE_LICENSE("GPL v2");