drivers/media/video/hexium_gemini.c

   1 /*
   2     hexium_gemini.c - v4l2 driver for Hexium Gemini frame grabber cards
   3
   4     Visit http://www.mihu.de/linux/saa7146/ and follow the link
   5     to "hexium" for further details about this card.
   6
   7     Copyright (C) 2003 Michael Hunold <michael@mihu.de>
   8
   9     This program is free software; you can redistribute it and/or modify
  10     it under the terms of the GNU General Public License as published by
  11     the Free Software Foundation; either version 2 of the License, or
  12     (at your option) any later version.
  13
  14     This program is distributed in the hope that it will be useful,
  15     but WITHOUT ANY WARRANTY; without even the implied warranty of
  16     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17     GNU General Public License for more details.
  18
  19     You should have received a copy of the GNU General Public License
  20     along with this program; if not, write to the Free Software
  21     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22 */
  23
  24 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  25
  26 #define DEBUG_VARIABLE debug
  27
  28 #include <media/saa7146_vv.h>
  29 #include <linux/module.h>
  30
  31 static int debug;
  32 module_param(debug, int, 0);
  33 MODULE_PARM_DESC(debug, "debug verbosity");
  34
  35 /* global variables */
  36 static int hexium_num;
  37
  38 #define HEXIUM_GEMINI                   4
  39 #define HEXIUM_GEMINI_DUAL              5
  40
  41 #define HEXIUM_INPUTS   9
  42 static struct v4l2_input hexium_inputs[HEXIUM_INPUTS] = {
  43         { 0, "CVBS 1",  V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
  44         { 1, "CVBS 2",  V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
  45         { 2, "CVBS 3",  V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
  46         { 3, "CVBS 4",  V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
  47         { 4, "CVBS 5",  V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
  48         { 5, "CVBS 6",  V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
  49         { 6, "Y/C 1",   V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
  50         { 7, "Y/C 2",   V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
  51         { 8, "Y/C 3",   V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
  52 };
  53
  54 #define HEXIUM_AUDIOS   0
  55
  56 struct hexium_data
  57 {
  58         s8 adr;
  59         u8 byte;
  60 };
  61
  62 #define HEXIUM_CONTROLS 1
  63 static struct v4l2_queryctrl hexium_controls[] = {
  64         { V4L2_CID_PRIVATE_BASE, V4L2_CTRL_TYPE_BOOLEAN, "B/W", 0, 1, 1, 0, 0 },
  65 };
  66
  67 #define HEXIUM_GEMINI_V_1_0             1
  68 #define HEXIUM_GEMINI_DUAL_V_1_0        2
  69
  70 struct hexium
  71 {
  72         int type;
  73
  74         struct video_device     *video_dev;
  75         struct i2c_adapter      i2c_adapter;
  76
  77         int             cur_input;      /* current input */
  78         v4l2_std_id     cur_std;        /* current standard */
  79         int             cur_bw;         /* current black/white status */
  80 };
  81
  82 /* Samsung KS0127B decoder default registers */
  83 static u8 hexium_ks0127b[0x100]={
  84 /*00*/ 0x00,0x52,0x30,0x40,0x01,0x0C,0x2A,0x10,
  85 /*08*/ 0x00,0x00,0x00,0x60,0x00,0x00,0x0F,0x06,
  86 /*10*/ 0x00,0x00,0xE4,0xC0,0x00,0x00,0x00,0x00,
  87 /*18*/ 0x14,0x9B,0xFE,0xFF,0xFC,0xFF,0x03,0x22,
  88 /*20*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  89 /*28*/ 0x00,0x00,0x00,0x00,0x00,0x2C,0x9B,0x00,
  90 /*30*/ 0x00,0x00,0x10,0x80,0x80,0x10,0x80,0x80,
  91 /*38*/ 0x01,0x04,0x00,0x00,0x00,0x29,0xC0,0x00,
  92 /*40*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  93 /*48*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  94 /*50*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  95 /*58*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  96 /*60*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  97 /*68*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  98 /*70*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  99 /*78*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 100 /*80*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 101 /*88*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 102 /*90*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 103 /*98*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 104 /*A0*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 105 /*A8*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 106 /*B0*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 107 /*B8*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 108 /*C0*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 109 /*C8*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 110 /*D0*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 111 /*D8*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 112 /*E0*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 113 /*E8*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 114 /*F0*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 115 /*F8*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
 116 };
 117
 118 static struct hexium_data hexium_pal[] = {
 119         { 0x01, 0x52 }, { 0x12, 0x64 }, { 0x2D, 0x2C }, { 0x2E, 0x9B }, { -1 , 0xFF }
 120 };
 121
 122 static struct hexium_data hexium_pal_bw[] = {
 123         { 0x01, 0x52 }, { 0x12, 0x64 }, { 0x2D, 0x2C }, { 0x2E, 0x9B }, { -1 , 0xFF }
 124 };
 125
 126 static struct hexium_data hexium_ntsc[] = {
 127         { 0x01, 0x53 }, { 0x12, 0x04 }, { 0x2D, 0x23 }, { 0x2E, 0x81 }, { -1 , 0xFF }
 128 };
 129
 130 static struct hexium_data hexium_ntsc_bw[] = {
 131         { 0x01, 0x53 }, { 0x12, 0x04 }, { 0x2D, 0x23 }, { 0x2E, 0x81 }, { -1 , 0xFF }
 132 };
 133
 134 static struct hexium_data hexium_secam[] = {
 135         { 0x01, 0x52 }, { 0x12, 0x64 }, { 0x2D, 0x2C }, { 0x2E, 0x9B }, { -1 , 0xFF }
 136 };
 137
 138 static struct hexium_data hexium_input_select[] = {
 139         { 0x02, 0x60 },
 140         { 0x02, 0x64 },
 141         { 0x02, 0x61 },
 142         { 0x02, 0x65 },
 143         { 0x02, 0x62 },
 144         { 0x02, 0x66 },
 145         { 0x02, 0x68 },
 146         { 0x02, 0x69 },
 147         { 0x02, 0x6A },
 148 };
 149
 150 /* fixme: h_offset = 0 for Hexium Gemini *Dual*, which
 151    are currently *not* supported*/
 152 static struct saa7146_standard hexium_standards[] = {
 153         {
 154                 .name   = "PAL",        .id     = V4L2_STD_PAL,
 155                 .v_offset       = 28,   .v_field        = 288,
 156                 .h_offset       = 1,    .h_pixels       = 680,
 157                 .v_max_out      = 576,  .h_max_out      = 768,
 158         }, {
 159                 .name   = "NTSC",       .id     = V4L2_STD_NTSC,
 160                 .v_offset       = 28,   .v_field        = 240,
 161                 .h_offset       = 1,    .h_pixels       = 640,
 162                 .v_max_out      = 480,  .h_max_out      = 640,
 163         }, {
 164                 .name   = "SECAM",      .id     = V4L2_STD_SECAM,
 165                 .v_offset       = 28,   .v_field        = 288,
 166                 .h_offset       = 1,    .h_pixels       = 720,
 167                 .v_max_out      = 576,  .h_max_out      = 768,
 168         }
 169 };
 170
 171 /* bring hardware to a sane state. this has to be done, just in case someone
 172    wants to capture from this device before it has been properly initialized.
 173    the capture engine would badly fail, because no valid signal arrives on the
 174    saa7146, thus leading to timeouts and stuff. */
 175 static int hexium_init_done(struct saa7146_dev *dev)
 176 {
 177         struct hexium *hexium = (struct hexium *) dev->ext_priv;
 178         union i2c_smbus_data data;
 179         int i = 0;
 180
 181         DEB_D("hexium_init_done called\n");
 182
 183         /* initialize the helper ics to useful values */
 184         for (i = 0; i < sizeof(hexium_ks0127b); i++) {
 185                 data.byte = hexium_ks0127b[i];
 186                 if (0 != i2c_smbus_xfer(&hexium->i2c_adapter, 0x6c, 0, I2C_SMBUS_WRITE, i, I2C_SMBUS_BYTE_DATA, &data)) {
 187                         pr_err("hexium_init_done() failed for address 0x%02x\n",
 188                                i);
 189                 }
 190         }
 191
 192         return 0;
 193 }
 194
 195 static int hexium_set_input(struct hexium *hexium, int input)
 196 {
 197         union i2c_smbus_data data;
 198
 199         DEB_D("\n");
 200
 201         data.byte = hexium_input_select[input].byte;
 202         if (0 != i2c_smbus_xfer(&hexium->i2c_adapter, 0x6c, 0, I2C_SMBUS_WRITE, hexium_input_select[input].adr, I2C_SMBUS_BYTE_DATA, &data)) {
 203                 return -1;
 204         }
 205
 206         return 0;
 207 }
 208
 209 static int hexium_set_standard(struct hexium *hexium, struct hexium_data *vdec)
 210 {
 211         union i2c_smbus_data data;
 212         int i = 0;
 213
 214         DEB_D("\n");
 215
 216         while (vdec[i].adr != -1) {
 217                 data.byte = vdec[i].byte;
 218                 if (0 != i2c_smbus_xfer(&hexium->i2c_adapter, 0x6c, 0, I2C_SMBUS_WRITE, vdec[i].adr, I2C_SMBUS_BYTE_DATA, &data)) {
 219                         pr_err("hexium_init_done: hexium_set_standard() failed for address 0x%02x\n",
 220                                i);
 221                         return -1;
 222                 }
 223                 i++;
 224         }
 225         return 0;
 226 }
 227
 228 static int vidioc_enum_input(struct file *file, void *fh, struct v4l2_input *i)
 229 {
 230         DEB_EE("VIDIOC_ENUMINPUT %d\n", i->index);
 231
 232         if (i->index >= HEXIUM_INPUTS)
 233                 return -EINVAL;
 234
 235         memcpy(i, &hexium_inputs[i->index], sizeof(struct v4l2_input));
 236
 237         DEB_D("v4l2_ioctl: VIDIOC_ENUMINPUT %d\n", i->index);
 238         return 0;
 239 }
 240
 241 static int vidioc_g_input(struct file *file, void *fh, unsigned int *input)
 242 {
 243         struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
 244         struct hexium *hexium = (struct hexium *) dev->ext_priv;
 245
 246         *input = hexium->cur_input;
 247
 248         DEB_D("VIDIOC_G_INPUT: %d\n", *input);
 249         return 0;
 250 }
 251
 252 static int vidioc_s_input(struct file *file, void *fh, unsigned int input)
 253 {
 254         struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
 255         struct hexium *hexium = (struct hexium *) dev->ext_priv;
 256
 257         DEB_EE("VIDIOC_S_INPUT %d\n", input);
 258
 259         if (input >= HEXIUM_INPUTS)
 260                 return -EINVAL;
 261
 262         hexium->cur_input = input;
 263         hexium_set_input(hexium, input);
 264         return 0;
 265 }
 266
 267 /* the saa7146 provides some controls (brightness, contrast, saturation)
 268    which gets registered *after* this function. because of this we have
 269    to return with a value != 0 even if the function succeeded.. */
 270 static int vidioc_queryctrl(struct file *file, void *fh, struct v4l2_queryctrl *qc)
 271 {
 272         struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
 273         int i;
 274
 275         for (i = HEXIUM_CONTROLS - 1; i >= 0; i--) {
 276                 if (hexium_controls[i].id == qc->id) {
 277                         *qc = hexium_controls[i];
 278                         DEB_D("VIDIOC_QUERYCTRL %d\n", qc->id);
 279                         return 0;
 280                 }
 281         }
 282         return dev->ext_vv_data->core_ops->vidioc_queryctrl(file, fh, qc);
 283 }
 284
 285 static int vidioc_g_ctrl(struct file *file, void *fh, struct v4l2_control *vc)
 286 {
 287         struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
 288         struct hexium *hexium = (struct hexium *) dev->ext_priv;
 289         int i;
 290
 291         for (i = HEXIUM_CONTROLS - 1; i >= 0; i--) {
 292                 if (hexium_controls[i].id == vc->id)
 293                         break;
 294         }
 295
 296         if (i < 0)
 297                 return dev->ext_vv_data->core_ops->vidioc_g_ctrl(file, fh, vc);
 298
 299         if (vc->id == V4L2_CID_PRIVATE_BASE) {
 300                 vc->value = hexium->cur_bw;
 301                 DEB_D("VIDIOC_G_CTRL BW:%d\n", vc->value);
 302                 return 0;
 303         }
 304         return -EINVAL;
 305 }
 306
 307 static int vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *vc)
 308 {
 309         struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
 310         struct hexium *hexium = (struct hexium *) dev->ext_priv;
 311         int i = 0;
 312
 313         for (i = HEXIUM_CONTROLS - 1; i >= 0; i--) {
 314                 if (hexium_controls[i].id == vc->id)
 315                         break;
 316         }
 317
 318         if (i < 0)
 319                 return dev->ext_vv_data->core_ops->vidioc_s_ctrl(file, fh, vc);
 320
 321         if (vc->id == V4L2_CID_PRIVATE_BASE)
 322                 hexium->cur_bw = vc->value;
 323
 324         DEB_D("VIDIOC_S_CTRL BW:%d\n", hexium->cur_bw);
 325
 326         if (0 == hexium->cur_bw && V4L2_STD_PAL == hexium->cur_std) {
 327                 hexium_set_standard(hexium, hexium_pal);
 328                 return 0;
 329         }
 330         if (0 == hexium->cur_bw && V4L2_STD_NTSC == hexium->cur_std) {
 331                 hexium_set_standard(hexium, hexium_ntsc);
 332                 return 0;
 333         }
 334         if (0 == hexium->cur_bw && V4L2_STD_SECAM == hexium->cur_std) {
 335                 hexium_set_standard(hexium, hexium_secam);
 336                 return 0;
 337         }
 338         if (1 == hexium->cur_bw && V4L2_STD_PAL == hexium->cur_std) {
 339                 hexium_set_standard(hexium, hexium_pal_bw);
 340                 return 0;
 341         }
 342         if (1 == hexium->cur_bw && V4L2_STD_NTSC == hexium->cur_std) {
 343                 hexium_set_standard(hexium, hexium_ntsc_bw);
 344                 return 0;
 345         }
 346         if (1 == hexium->cur_bw && V4L2_STD_SECAM == hexium->cur_std)
 347                 /* fixme: is there no bw secam mode? */
 348                 return -EINVAL;
 349
 350         return -EINVAL;
 351 }
 352
 353
 354 static struct saa7146_ext_vv vv_data;
 355
 356 /* this function only gets called when the probing was successful */
 357 static int hexium_attach(struct saa7146_dev *dev, struct saa7146_pci_extension_data *info)
 358 {
 359         struct hexium *hexium;
 360         int ret;
 361
 362         DEB_EE("\n");
 363
 364         hexium = kzalloc(sizeof(struct hexium), GFP_KERNEL);
 365         if (NULL == hexium) {
 366                 pr_err("not enough kernel memory in hexium_attach()\n");
 367                 return -ENOMEM;
 368         }
 369         dev->ext_priv = hexium;
 370
 371         /* enable i2c-port pins */
 372         saa7146_write(dev, MC1, (MASK_08 | MASK_24 | MASK_10 | MASK_26));
 373
 374         hexium->i2c_adapter = (struct i2c_adapter) {
 375                 .name = "hexium gemini",
 376         };
 377         saa7146_i2c_adapter_prepare(dev, &hexium->i2c_adapter, SAA7146_I2C_BUS_BIT_RATE_480);
 378         if (i2c_add_adapter(&hexium->i2c_adapter) < 0) {
 379                 DEB_S("cannot register i2c-device. skipping.\n");
 380                 kfree(hexium);
 381                 return -EFAULT;
 382         }
 383
 384         /*  set HWControl GPIO number 2 */
 385         saa7146_setgpio(dev, 2, SAA7146_GPIO_OUTHI);
 386
 387         saa7146_write(dev, DD1_INIT, 0x07000700);
 388         saa7146_write(dev, DD1_STREAM_B, 0x00000000);
 389         saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
 390
 391         /* the rest */
 392         hexium->cur_input = 0;
 393         hexium_init_done(dev);
 394
 395         hexium_set_standard(hexium, hexium_pal);
 396         hexium->cur_std = V4L2_STD_PAL;
 397
 398         hexium_set_input(hexium, 0);
 399         hexium->cur_input = 0;
 400
 401         saa7146_vv_init(dev, &vv_data);
 402         vv_data.ops.vidioc_queryctrl = vidioc_queryctrl;
 403         vv_data.ops.vidioc_g_ctrl = vidioc_g_ctrl;
 404         vv_data.ops.vidioc_s_ctrl = vidioc_s_ctrl;
 405         vv_data.ops.vidioc_enum_input = vidioc_enum_input;
 406         vv_data.ops.vidioc_g_input = vidioc_g_input;
 407         vv_data.ops.vidioc_s_input = vidioc_s_input;
 408         ret = saa7146_register_device(&hexium->video_dev, dev, "hexium gemini", VFL_TYPE_GRABBER);
 409         if (ret < 0) {
 410                 pr_err("cannot register capture v4l2 device. skipping.\n");
 411                 return ret;
 412         }
 413
 414         pr_info("found 'hexium gemini' frame grabber-%d\n", hexium_num);
 415         hexium_num++;
 416
 417         return 0;
 418 }
 419
 420 static int hexium_detach(struct saa7146_dev *dev)
 421 {
 422         struct hexium *hexium = (struct hexium *) dev->ext_priv;
 423
 424         DEB_EE("dev:%p\n", dev);
 425
 426         saa7146_unregister_device(&hexium->video_dev, dev);
 427         saa7146_vv_release(dev);
 428
 429         hexium_num--;
 430
 431         i2c_del_adapter(&hexium->i2c_adapter);
 432         kfree(hexium);
 433         return 0;
 434 }
 435
 436 static int std_callback(struct saa7146_dev *dev, struct saa7146_standard *std)
 437 {
 438         struct hexium *hexium = (struct hexium *) dev->ext_priv;
 439
 440         if (V4L2_STD_PAL == std->id) {
 441                 hexium_set_standard(hexium, hexium_pal);
 442                 hexium->cur_std = V4L2_STD_PAL;
 443                 return 0;
 444         } else if (V4L2_STD_NTSC == std->id) {
 445                 hexium_set_standard(hexium, hexium_ntsc);
 446                 hexium->cur_std = V4L2_STD_NTSC;
 447                 return 0;
 448         } else if (V4L2_STD_SECAM == std->id) {
 449                 hexium_set_standard(hexium, hexium_secam);
 450                 hexium->cur_std = V4L2_STD_SECAM;
 451                 return 0;
 452         }
 453
 454         return -1;
 455 }
 456
 457 static struct saa7146_extension hexium_extension;
 458
 459 static struct saa7146_pci_extension_data hexium_gemini_4bnc = {
 460         .ext_priv = "Hexium Gemini (4 BNC)",
 461         .ext = &hexium_extension,
 462 };
 463
 464 static struct saa7146_pci_extension_data hexium_gemini_dual_4bnc = {
 465         .ext_priv = "Hexium Gemini Dual (4 BNC)",
 466         .ext = &hexium_extension,
 467 };
 468
 469 static struct pci_device_id pci_tbl[] = {
 470         {
 471          .vendor = PCI_VENDOR_ID_PHILIPS,
 472          .device = PCI_DEVICE_ID_PHILIPS_SAA7146,
 473          .subvendor = 0x17c8,
 474          .subdevice = 0x2401,
 475          .driver_data = (unsigned long) &hexium_gemini_4bnc,
 476          },
 477         {
 478          .vendor = PCI_VENDOR_ID_PHILIPS,
 479          .device = PCI_DEVICE_ID_PHILIPS_SAA7146,
 480          .subvendor = 0x17c8,
 481          .subdevice = 0x2402,
 482          .driver_data = (unsigned long) &hexium_gemini_dual_4bnc,
 483          },
 484         {
 485          .vendor = 0,
 486          }
 487 };
 488
 489 MODULE_DEVICE_TABLE(pci, pci_tbl);
 490
 491 static struct saa7146_ext_vv vv_data = {
 492         .inputs = HEXIUM_INPUTS,
 493         .capabilities = 0,
 494         .stds = &hexium_standards[0],
 495         .num_stds = sizeof(hexium_standards) / sizeof(struct saa7146_standard),
 496         .std_callback = &std_callback,
 497 };
 498
 499 static struct saa7146_extension hexium_extension = {
 500         .name = "hexium gemini",
 501         .flags = SAA7146_USE_I2C_IRQ,
 502
 503         .pci_tbl = &pci_tbl[0],
 504         .module = THIS_MODULE,
 505
 506         .attach = hexium_attach,
 507         .detach = hexium_detach,
 508
 509         .irq_mask = 0,
 510         .irq_func = NULL,
 511 };
 512
 513 static int __init hexium_init_module(void)
 514 {
 515         if (0 != saa7146_register_extension(&hexium_extension)) {
 516                 DEB_S("failed to register extension\n");
 517                 return -ENODEV;
 518         }
 519
 520         return 0;
 521 }
 522
 523 static void __exit hexium_cleanup_module(void)
 524 {
 525         saa7146_unregister_extension(&hexium_extension);
 526 }
 527
 528 module_init(hexium_init_module);
 529 module_exit(hexium_cleanup_module);
 530
 531 MODULE_DESCRIPTION("video4linux-2 driver for Hexium Gemini frame grabber cards");
 532 MODULE_AUTHOR("Michael Hunold <michael@mihu.de>");
 533 MODULE_LICENSE("GPL");