drivers/media/pci/saa7146/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         strscpy(hexium->i2c_adapter.name, "hexium gemini",
 274                 sizeof(hexium->i2c_adapter.name));
 275         saa7146_i2c_adapter_prepare(dev, &hexium->i2c_adapter, SAA7146_I2C_BUS_BIT_RATE_480);
 276         if (i2c_add_adapter(&hexium->i2c_adapter) < 0) {
 277                 DEB_S("cannot register i2c-device. skipping.\n");
 278                 kfree(hexium);
 279                 return -EFAULT;
 280         }
 281
 282         /*  set HWControl GPIO number 2 */
 283         saa7146_setgpio(dev, 2, SAA7146_GPIO_OUTHI);
 284
 285         saa7146_write(dev, DD1_INIT, 0x07000700);
 286         saa7146_write(dev, DD1_STREAM_B, 0x00000000);
 287         saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
 288
 289         /* the rest */
 290         hexium->cur_input = 0;
 291         hexium_init_done(dev);
 292
 293         hexium_set_standard(hexium, hexium_pal);
 294         hexium->cur_std = V4L2_STD_PAL;
 295
 296         hexium_set_input(hexium, 0);
 297         hexium->cur_input = 0;
 298
 299         saa7146_vv_init(dev, &vv_data);
 300
 301         vv_data.vid_ops.vidioc_enum_input = vidioc_enum_input;
 302         vv_data.vid_ops.vidioc_g_input = vidioc_g_input;
 303         vv_data.vid_ops.vidioc_s_input = vidioc_s_input;
 304         ret = saa7146_register_device(&hexium->video_dev, dev, "hexium gemini", VFL_TYPE_GRABBER);
 305         if (ret < 0) {
 306                 pr_err("cannot register capture v4l2 device. skipping.\n");
 307                 saa7146_vv_release(dev);
 308                 i2c_del_adapter(&hexium->i2c_adapter);
 309                 kfree(hexium);
 310                 return ret;
 311         }
 312
 313         pr_info("found 'hexium gemini' frame grabber-%d\n", hexium_num);
 314         hexium_num++;
 315
 316         return 0;
 317 }
 318
 319 static int hexium_detach(struct saa7146_dev *dev)
 320 {
 321         struct hexium *hexium = (struct hexium *) dev->ext_priv;
 322
 323         DEB_EE("dev:%p\n", dev);
 324
 325         saa7146_unregister_device(&hexium->video_dev, dev);
 326         saa7146_vv_release(dev);
 327
 328         hexium_num--;
 329
 330         i2c_del_adapter(&hexium->i2c_adapter);
 331         kfree(hexium);
 332         return 0;
 333 }
 334
 335 static int std_callback(struct saa7146_dev *dev, struct saa7146_standard *std)
 336 {
 337         struct hexium *hexium = (struct hexium *) dev->ext_priv;
 338
 339         if (V4L2_STD_PAL == std->id) {
 340                 hexium_set_standard(hexium, hexium_pal);
 341                 hexium->cur_std = V4L2_STD_PAL;
 342                 return 0;
 343         } else if (V4L2_STD_NTSC == std->id) {
 344                 hexium_set_standard(hexium, hexium_ntsc);
 345                 hexium->cur_std = V4L2_STD_NTSC;
 346                 return 0;
 347         } else if (V4L2_STD_SECAM == std->id) {
 348                 hexium_set_standard(hexium, hexium_secam);
 349                 hexium->cur_std = V4L2_STD_SECAM;
 350                 return 0;
 351         }
 352
 353         return -1;
 354 }
 355
 356 static struct saa7146_extension hexium_extension;
 357
 358 static struct saa7146_pci_extension_data hexium_gemini_4bnc = {
 359         .ext_priv = "Hexium Gemini (4 BNC)",
 360         .ext = &hexium_extension,
 361 };
 362
 363 static struct saa7146_pci_extension_data hexium_gemini_dual_4bnc = {
 364         .ext_priv = "Hexium Gemini Dual (4 BNC)",
 365         .ext = &hexium_extension,
 366 };
 367
 368 static struct pci_device_id pci_tbl[] = {
 369         {
 370          .vendor = PCI_VENDOR_ID_PHILIPS,
 371          .device = PCI_DEVICE_ID_PHILIPS_SAA7146,
 372          .subvendor = 0x17c8,
 373          .subdevice = 0x2401,
 374          .driver_data = (unsigned long) &hexium_gemini_4bnc,
 375          },
 376         {
 377          .vendor = PCI_VENDOR_ID_PHILIPS,
 378          .device = PCI_DEVICE_ID_PHILIPS_SAA7146,
 379          .subvendor = 0x17c8,
 380          .subdevice = 0x2402,
 381          .driver_data = (unsigned long) &hexium_gemini_dual_4bnc,
 382          },
 383         {
 384          .vendor = 0,
 385          }
 386 };
 387
 388 MODULE_DEVICE_TABLE(pci, pci_tbl);
 389
 390 static struct saa7146_ext_vv vv_data = {
 391         .inputs = HEXIUM_INPUTS,
 392         .capabilities = 0,
 393         .stds = &hexium_standards[0],
 394         .num_stds = sizeof(hexium_standards) / sizeof(struct saa7146_standard),
 395         .std_callback = &std_callback,
 396 };
 397
 398 static struct saa7146_extension hexium_extension = {
 399         .name = "hexium gemini",
 400         .flags = SAA7146_USE_I2C_IRQ,
 401
 402         .pci_tbl = &pci_tbl[0],
 403         .module = THIS_MODULE,
 404
 405         .attach = hexium_attach,
 406         .detach = hexium_detach,
 407
 408         .irq_mask = 0,
 409         .irq_func = NULL,
 410 };
 411
 412 static int __init hexium_init_module(void)
 413 {
 414         if (0 != saa7146_register_extension(&hexium_extension)) {
 415                 DEB_S("failed to register extension\n");
 416                 return -ENODEV;
 417         }
 418
 419         return 0;
 420 }
 421
 422 static void __exit hexium_cleanup_module(void)
 423 {
 424         saa7146_unregister_extension(&hexium_extension);
 425 }
 426
 427 module_init(hexium_init_module);
 428 module_exit(hexium_cleanup_module);
 429
 430 MODULE_DESCRIPTION("video4linux-2 driver for Hexium Gemini frame grabber cards");
 431 MODULE_AUTHOR("Michael Hunold <michael@mihu.de>");
 432 MODULE_LICENSE("GPL");