drivers/staging/go7007/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  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software Foundation,
  15  * Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
  16  */
  17
  18 #include <linux/module.h>
  19 #include <linux/kernel.h>
  20 #include <linux/init.h>
  21 #include <linux/spinlock.h>
  22 #include <linux/wait.h>
  23 #include <linux/list.h>
  24 #include <linux/slab.h>
  25 #include <linux/time.h>
  26 #include <linux/mm.h>
  27 #include <linux/usb.h>
  28 #include <linux/i2c.h>
  29 #include <asm/byteorder.h>
  30 #include <media/v4l2-common.h>
  31
  32 #include "saa7134-reg.h"
  33 #include "saa7134.h"
  34 #include "go7007-priv.h"
  35
  36 #define GO7007_HPI_DEBUG
  37
  38 enum hpi_address {
  39         HPI_ADDR_VIDEO_BUFFER = 0xe4,
  40         HPI_ADDR_INIT_BUFFER = 0xea,
  41         HPI_ADDR_INTR_RET_VALUE = 0xee,
  42         HPI_ADDR_INTR_RET_DATA = 0xec,
  43         HPI_ADDR_INTR_STATUS = 0xf4,
  44         HPI_ADDR_INTR_WR_PARAM = 0xf6,
  45         HPI_ADDR_INTR_WR_INDEX = 0xf8,
  46 };
  47
  48 enum gpio_command {
  49         GPIO_COMMAND_RESET = 0x00, /* 000b */
  50         GPIO_COMMAND_REQ1  = 0x04, /* 001b */
  51         GPIO_COMMAND_WRITE = 0x20, /* 010b */
  52         GPIO_COMMAND_REQ2  = 0x24, /* 011b */
  53         GPIO_COMMAND_READ  = 0x80, /* 100b */
  54         GPIO_COMMAND_VIDEO = 0x84, /* 101b */
  55         GPIO_COMMAND_IDLE  = 0xA0, /* 110b */
  56         GPIO_COMMAND_ADDR  = 0xA4, /* 111b */
  57 };
  58
  59 struct saa7134_go7007 {
  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 struct go7007_board_info board_voyager = {
  68         .firmware        = "go7007tv.bin",
  69         .flags           = 0,
  70         .sensor_flags    = GO7007_SENSOR_656 |
  71                                 GO7007_SENSOR_VALID_ENABLE |
  72                                 GO7007_SENSOR_TV |
  73                                 GO7007_SENSOR_VBI,
  74         .audio_flags    = GO7007_AUDIO_I2S_MODE_1 |
  75                                 GO7007_AUDIO_WORD_16,
  76         .audio_rate      = 48000,
  77         .audio_bclk_div  = 8,
  78         .audio_main_div  = 2,
  79         .hpi_buffer_cap  = 7,
  80         .num_inputs      = 1,
  81         .inputs          = {
  82                 {
  83                         .name           = "SAA7134",
  84                 },
  85         },
  86 };
  87 MODULE_FIRMWARE("go7007tv.bin");
  88
  89 /********************* Driver for GPIO HPI interface *********************/
  90
  91 static int gpio_write(struct saa7134_dev *dev, u8 addr, u16 data)
  92 {
  93         saa_writeb(SAA7134_GPIO_GPMODE0, 0xff);
  94
  95         /* Write HPI address */
  96         saa_writeb(SAA7134_GPIO_GPSTATUS0, addr);
  97         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_ADDR);
  98         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
  99
 100         /* Write low byte */
 101         saa_writeb(SAA7134_GPIO_GPSTATUS0, data & 0xff);
 102         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_WRITE);
 103         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
 104
 105         /* Write high byte */
 106         saa_writeb(SAA7134_GPIO_GPSTATUS0, data >> 8);
 107         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_WRITE);
 108         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
 109
 110         return 0;
 111 }
 112
 113 static int gpio_read(struct saa7134_dev *dev, u8 addr, u16 *data)
 114 {
 115         saa_writeb(SAA7134_GPIO_GPMODE0, 0xff);
 116
 117         /* Write HPI address */
 118         saa_writeb(SAA7134_GPIO_GPSTATUS0, addr);
 119         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_ADDR);
 120         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
 121
 122         saa_writeb(SAA7134_GPIO_GPMODE0, 0x00);
 123
 124         /* Read low byte */
 125         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_READ);
 126         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 127         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 128         *data = saa_readb(SAA7134_GPIO_GPSTATUS0);
 129         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
 130
 131         /* Read high byte */
 132         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_READ);
 133         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 134         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 135         *data |= saa_readb(SAA7134_GPIO_GPSTATUS0) << 8;
 136         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
 137
 138         return 0;
 139 }
 140
 141 static int saa7134_go7007_interface_reset(struct go7007 *go)
 142 {
 143         struct saa7134_go7007 *saa = go->hpi_context;
 144         struct saa7134_dev *dev = saa->dev;
 145         u32 status;
 146         u16 intr_val, intr_data;
 147         int count = 20;
 148
 149         saa_clearb(SAA7134_TS_PARALLEL, 0x80); /* Disable TS interface */
 150         saa_writeb(SAA7134_GPIO_GPMODE2, 0xa4);
 151         saa_writeb(SAA7134_GPIO_GPMODE0, 0xff);
 152
 153         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_REQ1);
 154         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_RESET);
 155         msleep(1);
 156         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_REQ1);
 157         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_REQ2);
 158         msleep(10);
 159
 160         saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 161         saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 162
 163         status = saa_readb(SAA7134_GPIO_GPSTATUS2);
 164         /*printk(KERN_DEBUG "status is %s\n", status & 0x40 ? "OK" : "not OK"); */
 165
 166         /* enter command mode...(?) */
 167         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_REQ1);
 168         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_REQ2);
 169
 170         do {
 171                 saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 172                 saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
 173                 status = saa_readb(SAA7134_GPIO_GPSTATUS2);
 174                 /*printk(KERN_INFO "gpio is %08x\n", saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2)); */
 175         } while (--count > 0);
 176
 177         /* Wait for an interrupt to indicate successful hardware reset */
 178         if (go7007_read_interrupt(go, &intr_val, &intr_data) < 0 ||
 179                         (intr_val & ~0x1) != 0x55aa) {
 180                 printk(KERN_ERR
 181                         "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         printk(KERN_DEBUG
 196                 "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                 printk(KERN_ERR
 207                         "saa7134-go7007: device is hung, status reg = 0x%04x\n",
 208                         status_reg);
 209                 return -1;
 210         }
 211         gpio_write(dev, HPI_ADDR_INTR_WR_PARAM, data);
 212         gpio_write(dev, HPI_ADDR_INTR_WR_INDEX, addr);
 213
 214         return 0;
 215 }
 216
 217 static int saa7134_go7007_read_interrupt(struct go7007 *go)
 218 {
 219         struct saa7134_go7007 *saa = go->hpi_context;
 220         struct saa7134_dev *dev = saa->dev;
 221
 222         /* XXX we need to wait if there is no interrupt available */
 223         go->interrupt_available = 1;
 224         gpio_read(dev, HPI_ADDR_INTR_RET_VALUE, &go->interrupt_value);
 225         gpio_read(dev, HPI_ADDR_INTR_RET_DATA, &go->interrupt_data);
 226 #ifdef GO7007_HPI_DEBUG
 227         printk(KERN_DEBUG "saa7134-go7007: ReadInterrupt: %04x %04x\n",
 228                         go->interrupt_value, go->interrupt_data);
 229 #endif
 230         return 0;
 231 }
 232
 233 static void saa7134_go7007_irq_ts_done(struct saa7134_dev *dev,
 234                                                 unsigned long status)
 235 {
 236         struct go7007 *go = video_get_drvdata(dev->empress_dev);
 237         struct saa7134_go7007 *saa = go->hpi_context;
 238
 239         if (!go->streaming)
 240                 return;
 241         if (0 != (status & 0x000f0000))
 242                 printk(KERN_DEBUG "saa7134-go7007: irq: lost %ld\n",
 243                                 (status >> 16) & 0x0f);
 244         if (status & 0x100000) {
 245                 dma_sync_single_for_cpu(&dev->pci->dev,
 246                                         saa->bottom_dma, PAGE_SIZE, DMA_FROM_DEVICE);
 247                 go7007_parse_video_stream(go, saa->bottom, PAGE_SIZE);
 248                 saa_writel(SAA7134_RS_BA2(5), cpu_to_le32(saa->bottom_dma));
 249         } else {
 250                 dma_sync_single_for_cpu(&dev->pci->dev,
 251                                         saa->top_dma, PAGE_SIZE, DMA_FROM_DEVICE);
 252                 go7007_parse_video_stream(go, saa->top, PAGE_SIZE);
 253                 saa_writel(SAA7134_RS_BA1(5), cpu_to_le32(saa->top_dma));
 254         }
 255 }
 256
 257 static int saa7134_go7007_stream_start(struct go7007 *go)
 258 {
 259         struct saa7134_go7007 *saa = go->hpi_context;
 260         struct saa7134_dev *dev = saa->dev;
 261
 262         saa->top_dma = dma_map_page(&dev->pci->dev, virt_to_page(saa->top),
 263                         0, PAGE_SIZE, DMA_FROM_DEVICE);
 264         if (!saa->top_dma)
 265                 return -ENOMEM;
 266         saa->bottom_dma = dma_map_page(&dev->pci->dev,
 267                         virt_to_page(saa->bottom),
 268                         0, PAGE_SIZE, DMA_FROM_DEVICE);
 269         if (!saa->bottom_dma) {
 270                 dma_unmap_page(&dev->pci->dev, saa->top_dma, PAGE_SIZE,
 271                                 DMA_FROM_DEVICE);
 272                 return -ENOMEM;
 273         }
 274
 275         saa_writel(SAA7134_VIDEO_PORT_CTRL0 >> 2, 0xA300B000);
 276         saa_writel(SAA7134_VIDEO_PORT_CTRL4 >> 2, 0x40000200);
 277
 278         /* Set HPI interface for video */
 279         saa_writeb(SAA7134_GPIO_GPMODE0, 0xff);
 280         saa_writeb(SAA7134_GPIO_GPSTATUS0, HPI_ADDR_VIDEO_BUFFER);
 281         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_ADDR);
 282         saa_writeb(SAA7134_GPIO_GPMODE0, 0x00);
 283
 284         /* Enable TS interface */
 285         saa_writeb(SAA7134_TS_PARALLEL, 0xe6);
 286
 287         /* Reset TS interface */
 288         saa_setb(SAA7134_TS_SERIAL1, 0x01);
 289         saa_clearb(SAA7134_TS_SERIAL1, 0x01);
 290
 291         /* Set up transfer block size */
 292         saa_writeb(SAA7134_TS_PARALLEL_SERIAL, 128 - 1);
 293         saa_writeb(SAA7134_TS_DMA0, (PAGE_SIZE >> 7) - 1);
 294         saa_writeb(SAA7134_TS_DMA1, 0);
 295         saa_writeb(SAA7134_TS_DMA2, 0);
 296
 297         /* Enable video streaming mode */
 298         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_VIDEO);
 299
 300         saa_writel(SAA7134_RS_BA1(5), cpu_to_le32(saa->top_dma));
 301         saa_writel(SAA7134_RS_BA2(5), cpu_to_le32(saa->bottom_dma));
 302         saa_writel(SAA7134_RS_PITCH(5), 128);
 303         saa_writel(SAA7134_RS_CONTROL(5), SAA7134_RS_CONTROL_BURST_MAX);
 304
 305         /* Enable TS FIFO */
 306         saa_setl(SAA7134_MAIN_CTRL, SAA7134_MAIN_CTRL_TE5);
 307
 308         /* Enable DMA IRQ */
 309         saa_setl(SAA7134_IRQ1,
 310                         SAA7134_IRQ1_INTE_RA2_1 | SAA7134_IRQ1_INTE_RA2_0);
 311
 312         return 0;
 313 }
 314
 315 static int saa7134_go7007_stream_stop(struct go7007 *go)
 316 {
 317         struct saa7134_go7007 *saa = go->hpi_context;
 318         struct saa7134_dev *dev;
 319
 320         if (!saa)
 321                 return -EINVAL;
 322         dev = saa->dev;
 323         if (!dev)
 324                 return -EINVAL;
 325
 326         /* Shut down TS FIFO */
 327         saa_clearl(SAA7134_MAIN_CTRL, SAA7134_MAIN_CTRL_TE5);
 328
 329         /* Disable DMA IRQ */
 330         saa_clearl(SAA7134_IRQ1,
 331                         SAA7134_IRQ1_INTE_RA2_1 | SAA7134_IRQ1_INTE_RA2_0);
 332
 333         /* Disable TS interface */
 334         saa_clearb(SAA7134_TS_PARALLEL, 0x80);
 335
 336         dma_unmap_page(&dev->pci->dev, saa->top_dma, PAGE_SIZE,
 337                         DMA_FROM_DEVICE);
 338         dma_unmap_page(&dev->pci->dev, saa->bottom_dma, PAGE_SIZE,
 339                         DMA_FROM_DEVICE);
 340
 341         return 0;
 342 }
 343
 344 static int saa7134_go7007_send_firmware(struct go7007 *go, u8 *data, int len)
 345 {
 346         struct saa7134_go7007 *saa = go->hpi_context;
 347         struct saa7134_dev *dev = saa->dev;
 348         u16 status_reg;
 349         int i;
 350
 351 #ifdef GO7007_HPI_DEBUG
 352         printk(KERN_DEBUG "saa7134-go7007: DownloadBuffer "
 353                         "sending %d bytes\n", len);
 354 #endif
 355
 356         while (len > 0) {
 357                 i = len > 64 ? 64 : len;
 358                 saa_writeb(SAA7134_GPIO_GPMODE0, 0xff);
 359                 saa_writeb(SAA7134_GPIO_GPSTATUS0, HPI_ADDR_INIT_BUFFER);
 360                 saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_ADDR);
 361                 saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
 362                 while (i-- > 0) {
 363                         saa_writeb(SAA7134_GPIO_GPSTATUS0, *data);
 364                         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_WRITE);
 365                         saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
 366                         ++data;
 367                         --len;
 368                 }
 369                 for (i = 0; i < 100; ++i) {
 370                         gpio_read(dev, HPI_ADDR_INTR_STATUS, &status_reg);
 371                         if (!(status_reg & 0x0002))
 372                                 break;
 373                 }
 374                 if (i == 100) {
 375                         printk(KERN_ERR "saa7134-go7007: device is hung, "
 376                                         "status reg = 0x%04x\n", status_reg);
 377                         return -1;
 378                 }
 379         }
 380         return 0;
 381 }
 382
 383 static int saa7134_go7007_send_command(struct go7007 *go, unsigned int cmd,
 384                                         void *arg)
 385 {
 386         struct saa7134_go7007 *saa = go->hpi_context;
 387         struct saa7134_dev *dev = saa->dev;
 388
 389         switch (cmd) {
 390         case VIDIOC_S_STD:
 391         {
 392                 v4l2_std_id *std = arg;
 393                 return saa7134_s_std_internal(dev, NULL, std);
 394         }
 395         case VIDIOC_G_STD:
 396         {
 397                 v4l2_std_id *std = arg;
 398                 *std = dev->tvnorm->id;
 399                 return 0;
 400         }
 401         case VIDIOC_QUERYCTRL:
 402         {
 403                 struct v4l2_queryctrl *ctrl = arg;
 404                 if (V4L2_CTRL_ID2CLASS(ctrl->id) == V4L2_CTRL_CLASS_USER)
 405                         return saa7134_queryctrl(NULL, NULL, ctrl);
 406         }
 407         case VIDIOC_G_CTRL:
 408         {
 409                 struct v4l2_control *ctrl = arg;
 410                 if (V4L2_CTRL_ID2CLASS(ctrl->id) == V4L2_CTRL_CLASS_USER)
 411                         return saa7134_g_ctrl_internal(dev, NULL, ctrl);
 412         }
 413         case VIDIOC_S_CTRL:
 414         {
 415                 struct v4l2_control *ctrl = arg;
 416                 if (V4L2_CTRL_ID2CLASS(ctrl->id) == V4L2_CTRL_CLASS_USER)
 417                         return saa7134_s_ctrl_internal(dev, NULL, ctrl);
 418         }
 419         }
 420         return -EINVAL;
 421
 422 }
 423
 424 static struct go7007_hpi_ops saa7134_go7007_hpi_ops = {
 425         .interface_reset        = saa7134_go7007_interface_reset,
 426         .write_interrupt        = saa7134_go7007_write_interrupt,
 427         .read_interrupt         = saa7134_go7007_read_interrupt,
 428         .stream_start           = saa7134_go7007_stream_start,
 429         .stream_stop            = saa7134_go7007_stream_stop,
 430         .send_firmware          = saa7134_go7007_send_firmware,
 431         .send_command           = saa7134_go7007_send_command,
 432 };
 433
 434 /********************* Add/remove functions *********************/
 435
 436 static int saa7134_go7007_init(struct saa7134_dev *dev)
 437 {
 438         struct go7007 *go;
 439         struct saa7134_go7007 *saa;
 440
 441         printk(KERN_DEBUG "saa7134-go7007: probing new SAA713X board\n");
 442
 443         saa = kzalloc(sizeof(struct saa7134_go7007), GFP_KERNEL);
 444         if (saa == NULL)
 445                 return -ENOMEM;
 446
 447         /* Allocate a couple pages for receiving the compressed stream */
 448         saa->top = (u8 *)get_zeroed_page(GFP_KERNEL);
 449         if (!saa->top)
 450                 goto allocfail;
 451         saa->bottom = (u8 *)get_zeroed_page(GFP_KERNEL);
 452         if (!saa->bottom)
 453                 goto allocfail;
 454
 455         go = go7007_alloc(&board_voyager, &dev->pci->dev);
 456         if (go == NULL)
 457                 goto allocfail;
 458         go->board_id = GO7007_BOARDID_PCI_VOYAGER;
 459         strncpy(go->name, saa7134_boards[dev->board].name, sizeof(go->name));
 460         go->hpi_ops = &saa7134_go7007_hpi_ops;
 461         go->hpi_context = saa;
 462         saa->dev = dev;
 463
 464         /* Boot the GO7007 */
 465         if (go7007_boot_encoder(go, go->board_info->flags &
 466                                         GO7007_BOARD_USE_ONBOARD_I2C) < 0)
 467                 goto initfail;
 468
 469         /* Do any final GO7007 initialization, then register the
 470          * V4L2 and ALSA interfaces */
 471         if (go7007_register_encoder(go) < 0)
 472                 goto initfail;
 473         dev->empress_dev = go->video_dev;
 474         video_set_drvdata(dev->empress_dev, go);
 475
 476         go->status = STATUS_ONLINE;
 477         return 0;
 478
 479 initfail:
 480         go->status = STATUS_SHUTDOWN;
 481         return 0;
 482
 483 allocfail:
 484         if (saa->top)
 485                 free_page((unsigned long)saa->top);
 486         if (saa->bottom)
 487                 free_page((unsigned long)saa->bottom);
 488         kfree(saa);
 489         return -ENOMEM;
 490 }
 491
 492 static int saa7134_go7007_fini(struct saa7134_dev *dev)
 493 {
 494         struct go7007 *go;
 495         struct saa7134_go7007 *saa;
 496
 497         if (NULL == dev->empress_dev)
 498                 return 0;
 499
 500         go = video_get_drvdata(dev->empress_dev);
 501         saa = go->hpi_context;
 502         go->status = STATUS_SHUTDOWN;
 503         free_page((unsigned long)saa->top);
 504         free_page((unsigned long)saa->bottom);
 505         kfree(saa);
 506         go7007_remove(go);
 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");