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, 0, 0, V4L2_STD_ALL, 0, V4L2_IN_CAP_STD },
  44         { 1, "CVBS 2",  V4L2_INPUT_TYPE_CAMERA, 0, 0, V4L2_STD_ALL, 0, V4L2_IN_CAP_STD },
  45         { 2, "CVBS 3",  V4L2_INPUT_TYPE_CAMERA, 0, 0, V4L2_STD_ALL, 0, V4L2_IN_CAP_STD },
  46         { 3, "CVBS 4",  V4L2_INPUT_TYPE_CAMERA, 0, 0, V4L2_STD_ALL, 0, V4L2_IN_CAP_STD },
  47         { 4, "CVBS 5",  V4L2_INPUT_TYPE_CAMERA, 0, 0, V4L2_STD_ALL, 0, V4L2_IN_CAP_STD },
  48         { 5, "CVBS 6",  V4L2_INPUT_TYPE_CAMERA, 0, 0, V4L2_STD_ALL, 0, V4L2_IN_CAP_STD },
  49         { 6, "Y/C 1",   V4L2_INPUT_TYPE_CAMERA, 0, 0, V4L2_STD_ALL, 0, V4L2_IN_CAP_STD },
  50         { 7, "Y/C 2",   V4L2_INPUT_TYPE_CAMERA, 0, 0, V4L2_STD_ALL, 0, V4L2_IN_CAP_STD },
  51         { 8, "Y/C 3",   V4L2_INPUT_TYPE_CAMERA, 0, 0, V4L2_STD_ALL, 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_GEMINI_V_1_0             1
  63 #define HEXIUM_GEMINI_DUAL_V_1_0        2
  64
  65 struct hexium
  66 {
  67         int type;
  68
  69         struct video_device     *video_dev;
  70         struct i2c_adapter      i2c_adapter;
  71
  72         int             cur_input;      /* current input */
  73         v4l2_std_id     cur_std;        /* current standard */
  74 };
  75
  76 /* Samsung KS0127B decoder default registers */
  77 static u8 hexium_ks0127b[0x100]={
  78 /*00*/ 0x00,0x52,0x30,0x40,0x01,0x0C,0x2A,0x10,
  79 /*08*/ 0x00,0x00,0x00,0x60,0x00,0x00,0x0F,0x06,
  80 /*10*/ 0x00,0x00,0xE4,0xC0,0x00,0x00,0x00,0x00,
  81 /*18*/ 0x14,0x9B,0xFE,0xFF,0xFC,0xFF,0x03,0x22,
  82 /*20*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  83 /*28*/ 0x00,0x00,0x00,0x00,0x00,0x2C,0x9B,0x00,
  84 /*30*/ 0x00,0x00,0x10,0x80,0x80,0x10,0x80,0x80,
  85 /*38*/ 0x01,0x04,0x00,0x00,0x00,0x29,0xC0,0x00,
  86 /*40*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  87 /*48*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  88 /*50*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  89 /*58*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  90 /*60*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  91 /*68*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  92 /*70*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  93 /*78*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  94 /*80*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  95 /*88*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  96 /*90*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  97 /*98*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  98 /*A0*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  99 /*A8*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 100 /*B0*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 101 /*B8*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 102 /*C0*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 103 /*C8*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 104 /*D0*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 105 /*D8*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 106 /*E0*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 107 /*E8*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 108 /*F0*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 109 /*F8*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
 110 };
 111
 112 static struct hexium_data hexium_pal[] = {
 113         { 0x01, 0x52 }, { 0x12, 0x64 }, { 0x2D, 0x2C }, { 0x2E, 0x9B }, { -1 , 0xFF }
 114 };
 115
 116 static struct hexium_data hexium_ntsc[] = {
 117         { 0x01, 0x53 }, { 0x12, 0x04 }, { 0x2D, 0x23 }, { 0x2E, 0x81 }, { -1 , 0xFF }
 118 };
 119
 120 static struct hexium_data hexium_secam[] = {
 121         { 0x01, 0x52 }, { 0x12, 0x64 }, { 0x2D, 0x2C }, { 0x2E, 0x9B }, { -1 , 0xFF }
 122 };
 123
 124 static struct hexium_data hexium_input_select[] = {
 125         { 0x02, 0x60 },
 126         { 0x02, 0x64 },
 127         { 0x02, 0x61 },
 128         { 0x02, 0x65 },
 129         { 0x02, 0x62 },
 130         { 0x02, 0x66 },
 131         { 0x02, 0x68 },
 132         { 0x02, 0x69 },
 133         { 0x02, 0x6A },
 134 };
 135
 136 /* fixme: h_offset = 0 for Hexium Gemini *Dual*, which
 137    are currently *not* supported*/
 138 static struct saa7146_standard hexium_standards[] = {
 139         {
 140                 .name   = "PAL",        .id     = V4L2_STD_PAL,
 141                 .v_offset       = 28,   .v_field        = 288,
 142                 .h_offset       = 1,    .h_pixels       = 680,
 143                 .v_max_out      = 576,  .h_max_out      = 768,
 144         }, {
 145                 .name   = "NTSC",       .id     = V4L2_STD_NTSC,
 146                 .v_offset       = 28,   .v_field        = 240,
 147                 .h_offset       = 1,    .h_pixels       = 640,
 148                 .v_max_out      = 480,  .h_max_out      = 640,
 149         }, {
 150                 .name   = "SECAM",      .id     = V4L2_STD_SECAM,
 151                 .v_offset       = 28,   .v_field        = 288,
 152                 .h_offset       = 1,    .h_pixels       = 720,
 153                 .v_max_out      = 576,  .h_max_out      = 768,
 154         }
 155 };
 156
 157 /* bring hardware to a sane state. this has to be done, just in case someone
 158    wants to capture from this device before it has been properly initialized.
 159    the capture engine would badly fail, because no valid signal arrives on the
 160    saa7146, thus leading to timeouts and stuff. */
 161 static int hexium_init_done(struct saa7146_dev *dev)
 162 {
 163         struct hexium *hexium = (struct hexium *) dev->ext_priv;
 164         union i2c_smbus_data data;
 165         int i = 0;
 166
 167         DEB_D("hexium_init_done called\n");
 168
 169         /* initialize the helper ics to useful values */
 170         for (i = 0; i < sizeof(hexium_ks0127b); i++) {
 171                 data.byte = hexium_ks0127b[i];
 172                 if (0 != i2c_smbus_xfer(&hexium->i2c_adapter, 0x6c, 0, I2C_SMBUS_WRITE, i, I2C_SMBUS_BYTE_DATA, &data)) {
 173                         pr_err("hexium_init_done() failed for address 0x%02x\n",
 174                                i);
 175                 }
 176         }
 177
 178         return 0;
 179 }
 180
 181 static int hexium_set_input(struct hexium *hexium, int input)
 182 {
 183         union i2c_smbus_data data;
 184
 185         DEB_D("\n");
 186
 187         data.byte = hexium_input_select[input].byte;
 188         if (0 != i2c_smbus_xfer(&hexium->i2c_adapter, 0x6c, 0, I2C_SMBUS_WRITE, hexium_input_select[input].adr, I2C_SMBUS_BYTE_DATA, &data)) {
 189                 return -1;
 190         }
 191
 192         return 0;
 193 }
 194
 195 static int hexium_set_standard(struct hexium *hexium, struct hexium_data *vdec)
 196 {
 197         union i2c_smbus_data data;
 198         int i = 0;
 199
 200         DEB_D("\n");
 201
 202         while (vdec[i].adr != -1) {
 203                 data.byte = vdec[i].byte;
 204                 if (0 != i2c_smbus_xfer(&hexium->i2c_adapter, 0x6c, 0, I2C_SMBUS_WRITE, vdec[i].adr, I2C_SMBUS_BYTE_DATA, &data)) {
 205                         pr_err("hexium_init_done: hexium_set_standard() failed for address 0x%02x\n",
 206                                i);
 207                         return -1;
 208                 }
 209                 i++;
 210         }
 211         return 0;
 212 }
 213
 214 static int vidioc_enum_input(struct file *file, void *fh, struct v4l2_input *i)
 215 {
 216         DEB_EE("VIDIOC_ENUMINPUT %d\n", i->index);
 217
 218         if (i->index >= HEXIUM_INPUTS)
 219                 return -EINVAL;
 220
 221         memcpy(i, &hexium_inputs[i->index], sizeof(struct v4l2_input));
 222
 223         DEB_D("v4l2_ioctl: VIDIOC_ENUMINPUT %d\n", i->index);
 224         return 0;
 225 }
 226
 227 static int vidioc_g_input(struct file *file, void *fh, unsigned int *input)
 228 {
 229         struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
 230         struct hexium *hexium = (struct hexium *) dev->ext_priv;
 231
 232         *input = hexium->cur_input;
 233
 234         DEB_D("VIDIOC_G_INPUT: %d\n", *input);
 235         return 0;
 236 }
 237
 238 static int vidioc_s_input(struct file *file, void *fh, unsigned int input)
 239 {
 240         struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
 241         struct hexium *hexium = (struct hexium *) dev->ext_priv;
 242
 243         DEB_EE("VIDIOC_S_INPUT %d\n", input);
 244
 245         if (input >= HEXIUM_INPUTS)
 246                 return -EINVAL;
 247
 248         hexium->cur_input = input;
 249         hexium_set_input(hexium, input);
 250         return 0;
 251 }
 252
 253 static struct saa7146_ext_vv vv_data;
 254
 255 /* this function only gets called when the probing was successful */
 256 static int hexium_attach(struct saa7146_dev *dev, struct saa7146_pci_extension_data *info)
 257 {
 258         struct hexium *hexium;
 259         int ret;
 260
 261         DEB_EE("\n");
 262
 263         hexium = kzalloc(sizeof(struct hexium), GFP_KERNEL);
 264         if (NULL == hexium) {
 265                 pr_err("not enough kernel memory in hexium_attach()\n");
 266                 return -ENOMEM;
 267         }
 268         dev->ext_priv = hexium;
 269
 270         /* enable i2c-port pins */
 271         saa7146_write(dev, MC1, (MASK_08 | MASK_24 | MASK_10 | MASK_26));
 272
 273         hexium->i2c_adapter = (struct i2c_adapter) {
 274                 .name = "hexium gemini",
 275         };
 276         saa7146_i2c_adapter_prepare(dev, &hexium->i2c_adapter, SAA7146_I2C_BUS_BIT_RATE_480);
 277         if (i2c_add_adapter(&hexium->i2c_adapter) < 0) {
 278                 DEB_S("cannot register i2c-device. skipping.\n");
 279                 kfree(hexium);
 280                 return -EFAULT;
 281         }
 282
 283         /*  set HWControl GPIO number 2 */
 284         saa7146_setgpio(dev, 2, SAA7146_GPIO_OUTHI);
 285
 286         saa7146_write(dev, DD1_INIT, 0x07000700);
 287         saa7146_write(dev, DD1_STREAM_B, 0x00000000);
 288         saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
 289
 290         /* the rest */
 291         hexium->cur_input = 0;
 292         hexium_init_done(dev);
 293
 294         hexium_set_standard(hexium, hexium_pal);
 295         hexium->cur_std = V4L2_STD_PAL;
 296
 297         hexium_set_input(hexium, 0);
 298         hexium->cur_input = 0;
 299
 300         saa7146_vv_init(dev, &vv_data);
 301
 302         vv_data.vid_ops.vidioc_enum_input = vidioc_enum_input;
 303         vv_data.vid_ops.vidioc_g_input = vidioc_g_input;
 304         vv_data.vid_ops.vidioc_s_input = vidioc_s_input;
 305         ret = saa7146_register_device(&hexium->video_dev, dev, "hexium gemini", VFL_TYPE_GRABBER);
 306         if (ret < 0) {
 307                 pr_err("cannot register capture v4l2 device. skipping.\n");
 308                 return ret;
 309         }
 310
 311         pr_info("found 'hexium gemini' frame grabber-%d\n", hexium_num);
 312         hexium_num++;
 313
 314         return 0;
 315 }
 316
 317 static int hexium_detach(struct saa7146_dev *dev)
 318 {
 319         struct hexium *hexium = (struct hexium *) dev->ext_priv;
 320
 321         DEB_EE("dev:%p\n", dev);
 322
 323         saa7146_unregister_device(&hexium->video_dev, dev);
 324         saa7146_vv_release(dev);
 325
 326         hexium_num--;
 327
 328         i2c_del_adapter(&hexium->i2c_adapter);
 329         kfree(hexium);
 330         return 0;
 331 }
 332
 333 static int std_callback(struct saa7146_dev *dev, struct saa7146_standard *std)
 334 {
 335         struct hexium *hexium = (struct hexium *) dev->ext_priv;
 336
 337         if (V4L2_STD_PAL == std->id) {
 338                 hexium_set_standard(hexium, hexium_pal);
 339                 hexium->cur_std = V4L2_STD_PAL;
 340                 return 0;
 341         } else if (V4L2_STD_NTSC == std->id) {
 342                 hexium_set_standard(hexium, hexium_ntsc);
 343                 hexium->cur_std = V4L2_STD_NTSC;
 344                 return 0;
 345         } else if (V4L2_STD_SECAM == std->id) {
 346                 hexium_set_standard(hexium, hexium_secam);
 347                 hexium->cur_std = V4L2_STD_SECAM;
 348                 return 0;
 349         }
 350
 351         return -1;
 352 }
 353
 354 static struct saa7146_extension hexium_extension;
 355
 356 static struct saa7146_pci_extension_data hexium_gemini_4bnc = {
 357         .ext_priv = "Hexium Gemini (4 BNC)",
 358         .ext = &hexium_extension,
 359 };
 360
 361 static struct saa7146_pci_extension_data hexium_gemini_dual_4bnc = {
 362         .ext_priv = "Hexium Gemini Dual (4 BNC)",
 363         .ext = &hexium_extension,
 364 };
 365
 366 static struct pci_device_id pci_tbl[] = {
 367         {
 368          .vendor = PCI_VENDOR_ID_PHILIPS,
 369          .device = PCI_DEVICE_ID_PHILIPS_SAA7146,
 370          .subvendor = 0x17c8,
 371          .subdevice = 0x2401,
 372          .driver_data = (unsigned long) &hexium_gemini_4bnc,
 373          },
 374         {
 375          .vendor = PCI_VENDOR_ID_PHILIPS,
 376          .device = PCI_DEVICE_ID_PHILIPS_SAA7146,
 377          .subvendor = 0x17c8,
 378          .subdevice = 0x2402,
 379          .driver_data = (unsigned long) &hexium_gemini_dual_4bnc,
 380          },
 381         {
 382          .vendor = 0,
 383          }
 384 };
 385
 386 MODULE_DEVICE_TABLE(pci, pci_tbl);
 387
 388 static struct saa7146_ext_vv vv_data = {
 389         .inputs = HEXIUM_INPUTS,
 390         .capabilities = 0,
 391         .stds = &hexium_standards[0],
 392         .num_stds = sizeof(hexium_standards) / sizeof(struct saa7146_standard),
 393         .std_callback = &std_callback,
 394 };
 395
 396 static struct saa7146_extension hexium_extension = {
 397         .name = "hexium gemini",
 398         .flags = SAA7146_USE_I2C_IRQ,
 399
 400         .pci_tbl = &pci_tbl[0],
 401         .module = THIS_MODULE,
 402
 403         .attach = hexium_attach,
 404         .detach = hexium_detach,
 405
 406         .irq_mask = 0,
 407         .irq_func = NULL,
 408 };
 409
 410 static int __init hexium_init_module(void)
 411 {
 412         if (0 != saa7146_register_extension(&hexium_extension)) {
 413                 DEB_S("failed to register extension\n");
 414                 return -ENODEV;
 415         }
 416
 417         return 0;
 418 }
 419
 420 static void __exit hexium_cleanup_module(void)
 421 {
 422         saa7146_unregister_extension(&hexium_extension);
 423 }
 424
 425 module_init(hexium_init_module);
 426 module_exit(hexium_cleanup_module);
 427
 428 MODULE_DESCRIPTION("video4linux-2 driver for Hexium Gemini frame grabber cards");
 429 MODULE_AUTHOR("Michael Hunold <michael@mihu.de>");
 430 MODULE_LICENSE("GPL");