drivers/media/pci/saa7146/hexium_gemini.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3     hexium_gemini.c - v4l2 driver for Hexium Gemini frame grabber cards
   4
   5     Visit http://www.mihu.de/linux/saa7146/ and follow the link
   6     to "hexium" for further details about this card.
   7
   8     Copyright (C) 2003 Michael Hunold <michael@mihu.de>
   9
  10 */
  11
  12 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  13
  14 #define DEBUG_VARIABLE debug
  15
  16 #include <media/drv-intf/saa7146_vv.h>
  17 #include <linux/module.h>
  18 #include <linux/kernel.h>
  19
  20 static int debug;
  21 module_param(debug, int, 0);
  22 MODULE_PARM_DESC(debug, "debug verbosity");
  23
  24 /* global variables */
  25 static int hexium_num;
  26
  27 #define HEXIUM_GEMINI                   4
  28 #define HEXIUM_GEMINI_DUAL              5
  29
  30 #define HEXIUM_STD (V4L2_STD_PAL | V4L2_STD_SECAM | V4L2_STD_NTSC)
  31 #define HEXIUM_INPUTS   9
  32 static struct v4l2_input hexium_inputs[HEXIUM_INPUTS] = {
  33         { 0, "CVBS 1",  V4L2_INPUT_TYPE_CAMERA, 0, 0, HEXIUM_STD, 0, V4L2_IN_CAP_STD },
  34         { 1, "CVBS 2",  V4L2_INPUT_TYPE_CAMERA, 0, 0, HEXIUM_STD, 0, V4L2_IN_CAP_STD },
  35         { 2, "CVBS 3",  V4L2_INPUT_TYPE_CAMERA, 0, 0, HEXIUM_STD, 0, V4L2_IN_CAP_STD },
  36         { 3, "CVBS 4",  V4L2_INPUT_TYPE_CAMERA, 0, 0, HEXIUM_STD, 0, V4L2_IN_CAP_STD },
  37         { 4, "CVBS 5",  V4L2_INPUT_TYPE_CAMERA, 0, 0, HEXIUM_STD, 0, V4L2_IN_CAP_STD },
  38         { 5, "CVBS 6",  V4L2_INPUT_TYPE_CAMERA, 0, 0, HEXIUM_STD, 0, V4L2_IN_CAP_STD },
  39         { 6, "Y/C 1",   V4L2_INPUT_TYPE_CAMERA, 0, 0, HEXIUM_STD, 0, V4L2_IN_CAP_STD },
  40         { 7, "Y/C 2",   V4L2_INPUT_TYPE_CAMERA, 0, 0, HEXIUM_STD, 0, V4L2_IN_CAP_STD },
  41         { 8, "Y/C 3",   V4L2_INPUT_TYPE_CAMERA, 0, 0, HEXIUM_STD, 0, V4L2_IN_CAP_STD },
  42 };
  43
  44 #define HEXIUM_AUDIOS   0
  45
  46 struct hexium_data
  47 {
  48         s8 adr;
  49         u8 byte;
  50 };
  51
  52 #define HEXIUM_GEMINI_V_1_0             1
  53 #define HEXIUM_GEMINI_DUAL_V_1_0        2
  54
  55 struct hexium
  56 {
  57         int type;
  58
  59         struct video_device     video_dev;
  60         struct i2c_adapter      i2c_adapter;
  61
  62         int             cur_input;      /* current input */
  63         v4l2_std_id     cur_std;        /* current standard */
  64 };
  65
  66 /* Samsung KS0127B decoder default registers */
  67 static u8 hexium_ks0127b[0x100]={
  68 /*00*/ 0x00,0x52,0x30,0x40,0x01,0x0C,0x2A,0x10,
  69 /*08*/ 0x00,0x00,0x00,0x60,0x00,0x00,0x0F,0x06,
  70 /*10*/ 0x00,0x00,0xE4,0xC0,0x00,0x00,0x00,0x00,
  71 /*18*/ 0x14,0x9B,0xFE,0xFF,0xFC,0xFF,0x03,0x22,
  72 /*20*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  73 /*28*/ 0x00,0x00,0x00,0x00,0x00,0x2C,0x9B,0x00,
  74 /*30*/ 0x00,0x00,0x10,0x80,0x80,0x10,0x80,0x80,
  75 /*38*/ 0x01,0x04,0x00,0x00,0x00,0x29,0xC0,0x00,
  76 /*40*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  77 /*48*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  78 /*50*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  79 /*58*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  80 /*60*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  81 /*68*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  82 /*70*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  83 /*78*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  84 /*80*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  85 /*88*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  86 /*90*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  87 /*98*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  88 /*A0*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  89 /*A8*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  90 /*B0*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  91 /*B8*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  92 /*C0*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  93 /*C8*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  94 /*D0*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  95 /*D8*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  96 /*E0*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  97 /*E8*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  98 /*F0*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  99 /*F8*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
 100 };
 101
 102 static struct hexium_data hexium_pal[] = {
 103         { 0x01, 0x52 }, { 0x12, 0x64 }, { 0x2D, 0x2C }, { 0x2E, 0x9B }, { -1 , 0xFF }
 104 };
 105
 106 static struct hexium_data hexium_ntsc[] = {
 107         { 0x01, 0x53 }, { 0x12, 0x04 }, { 0x2D, 0x23 }, { 0x2E, 0x81 }, { -1 , 0xFF }
 108 };
 109
 110 static struct hexium_data hexium_secam[] = {
 111         { 0x01, 0x52 }, { 0x12, 0x64 }, { 0x2D, 0x2C }, { 0x2E, 0x9B }, { -1 , 0xFF }
 112 };
 113
 114 static struct hexium_data hexium_input_select[] = {
 115         { 0x02, 0x60 },
 116         { 0x02, 0x64 },
 117         { 0x02, 0x61 },
 118         { 0x02, 0x65 },
 119         { 0x02, 0x62 },
 120         { 0x02, 0x66 },
 121         { 0x02, 0x68 },
 122         { 0x02, 0x69 },
 123         { 0x02, 0x6A },
 124 };
 125
 126 /* fixme: h_offset = 0 for Hexium Gemini *Dual*, which
 127    are currently *not* supported*/
 128 static struct saa7146_standard hexium_standards[] = {
 129         {
 130                 .name   = "PAL",        .id     = V4L2_STD_PAL,
 131                 .v_offset       = 28,   .v_field        = 288,
 132                 .h_offset       = 1,    .h_pixels       = 680,
 133                 .v_max_out      = 576,  .h_max_out      = 768,
 134         }, {
 135                 .name   = "NTSC",       .id     = V4L2_STD_NTSC,
 136                 .v_offset       = 28,   .v_field        = 240,
 137                 .h_offset       = 1,    .h_pixels       = 640,
 138                 .v_max_out      = 480,  .h_max_out      = 640,
 139         }, {
 140                 .name   = "SECAM",      .id     = V4L2_STD_SECAM,
 141                 .v_offset       = 28,   .v_field        = 288,
 142                 .h_offset       = 1,    .h_pixels       = 720,
 143                 .v_max_out      = 576,  .h_max_out      = 768,
 144         }
 145 };
 146
 147 /* bring hardware to a sane state. this has to be done, just in case someone
 148    wants to capture from this device before it has been properly initialized.
 149    the capture engine would badly fail, because no valid signal arrives on the
 150    saa7146, thus leading to timeouts and stuff. */
 151 static int hexium_init_done(struct saa7146_dev *dev)
 152 {
 153         struct hexium *hexium = (struct hexium *) dev->ext_priv;
 154         union i2c_smbus_data data;
 155         int i = 0;
 156
 157         DEB_D("hexium_init_done called\n");
 158
 159         /* initialize the helper ics to useful values */
 160         for (i = 0; i < sizeof(hexium_ks0127b); i++) {
 161                 data.byte = hexium_ks0127b[i];
 162                 if (0 != i2c_smbus_xfer(&hexium->i2c_adapter, 0x6c, 0, I2C_SMBUS_WRITE, i, I2C_SMBUS_BYTE_DATA, &data)) {
 163                         pr_err("hexium_init_done() failed for address 0x%02x\n",
 164                                i);
 165                 }
 166         }
 167
 168         return 0;
 169 }
 170
 171 static int hexium_set_input(struct hexium *hexium, int input)
 172 {
 173         union i2c_smbus_data data;
 174
 175         DEB_D("\n");
 176
 177         data.byte = hexium_input_select[input].byte;
 178         if (0 != i2c_smbus_xfer(&hexium->i2c_adapter, 0x6c, 0, I2C_SMBUS_WRITE, hexium_input_select[input].adr, I2C_SMBUS_BYTE_DATA, &data)) {
 179                 return -1;
 180         }
 181
 182         return 0;
 183 }
 184
 185 static int hexium_set_standard(struct hexium *hexium, struct hexium_data *vdec)
 186 {
 187         union i2c_smbus_data data;
 188         int i = 0;
 189
 190         DEB_D("\n");
 191
 192         while (vdec[i].adr != -1) {
 193                 data.byte = vdec[i].byte;
 194                 if (0 != i2c_smbus_xfer(&hexium->i2c_adapter, 0x6c, 0, I2C_SMBUS_WRITE, vdec[i].adr, I2C_SMBUS_BYTE_DATA, &data)) {
 195                         pr_err("hexium_init_done: hexium_set_standard() failed for address 0x%02x\n",
 196                                i);
 197                         return -1;
 198                 }
 199                 i++;
 200         }
 201         return 0;
 202 }
 203
 204 static int vidioc_enum_input(struct file *file, void *fh, struct v4l2_input *i)
 205 {
 206         DEB_EE("VIDIOC_ENUMINPUT %d\n", i->index);
 207
 208         if (i->index >= HEXIUM_INPUTS)
 209                 return -EINVAL;
 210
 211         memcpy(i, &hexium_inputs[i->index], sizeof(struct v4l2_input));
 212
 213         DEB_D("v4l2_ioctl: VIDIOC_ENUMINPUT %d\n", i->index);
 214         return 0;
 215 }
 216
 217 static int vidioc_g_input(struct file *file, void *fh, unsigned int *input)
 218 {
 219         struct saa7146_dev *dev = video_drvdata(file);
 220         struct hexium *hexium = (struct hexium *) dev->ext_priv;
 221
 222         *input = hexium->cur_input;
 223
 224         DEB_D("VIDIOC_G_INPUT: %d\n", *input);
 225         return 0;
 226 }
 227
 228 static int vidioc_s_input(struct file *file, void *fh, unsigned int input)
 229 {
 230         struct saa7146_dev *dev = video_drvdata(file);
 231         struct hexium *hexium = (struct hexium *) dev->ext_priv;
 232
 233         DEB_EE("VIDIOC_S_INPUT %d\n", input);
 234
 235         if (input >= HEXIUM_INPUTS)
 236                 return -EINVAL;
 237
 238         hexium->cur_input = input;
 239         hexium_set_input(hexium, input);
 240         return 0;
 241 }
 242
 243 static struct saa7146_ext_vv vv_data;
 244
 245 /* this function only gets called when the probing was successful */
 246 static int hexium_attach(struct saa7146_dev *dev, struct saa7146_pci_extension_data *info)
 247 {
 248         struct hexium *hexium;
 249         int ret;
 250
 251         DEB_EE("\n");
 252
 253         hexium = kzalloc(sizeof(*hexium), GFP_KERNEL);
 254         if (!hexium)
 255                 return -ENOMEM;
 256
 257         dev->ext_priv = hexium;
 258
 259         /* enable i2c-port pins */
 260         saa7146_write(dev, MC1, (MASK_08 | MASK_24 | MASK_10 | MASK_26));
 261
 262         strscpy(hexium->i2c_adapter.name, "hexium gemini",
 263                 sizeof(hexium->i2c_adapter.name));
 264         saa7146_i2c_adapter_prepare(dev, &hexium->i2c_adapter, SAA7146_I2C_BUS_BIT_RATE_480);
 265         if (i2c_add_adapter(&hexium->i2c_adapter) < 0) {
 266                 DEB_S("cannot register i2c-device. skipping.\n");
 267                 kfree(hexium);
 268                 return -EFAULT;
 269         }
 270
 271         /*  set HWControl GPIO number 2 */
 272         saa7146_setgpio(dev, 2, SAA7146_GPIO_OUTHI);
 273
 274         saa7146_write(dev, DD1_INIT, 0x07000700);
 275         saa7146_write(dev, DD1_STREAM_B, 0x00000000);
 276         saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
 277
 278         /* the rest */
 279         hexium->cur_input = 0;
 280         hexium_init_done(dev);
 281
 282         hexium_set_standard(hexium, hexium_pal);
 283         hexium->cur_std = V4L2_STD_PAL;
 284
 285         hexium_set_input(hexium, 0);
 286         hexium->cur_input = 0;
 287
 288         ret = saa7146_vv_init(dev, &vv_data);
 289         if (ret) {
 290                 i2c_del_adapter(&hexium->i2c_adapter);
 291                 kfree(hexium);
 292                 return ret;
 293         }
 294
 295         vv_data.vid_ops.vidioc_enum_input = vidioc_enum_input;
 296         vv_data.vid_ops.vidioc_g_input = vidioc_g_input;
 297         vv_data.vid_ops.vidioc_s_input = vidioc_s_input;
 298         ret = saa7146_register_device(&hexium->video_dev, dev, "hexium gemini", VFL_TYPE_VIDEO);
 299         if (ret < 0) {
 300                 pr_err("cannot register capture v4l2 device. skipping.\n");
 301                 saa7146_vv_release(dev);
 302                 i2c_del_adapter(&hexium->i2c_adapter);
 303                 kfree(hexium);
 304                 return ret;
 305         }
 306
 307         pr_info("found 'hexium gemini' frame grabber-%d\n", hexium_num);
 308         hexium_num++;
 309
 310         return 0;
 311 }
 312
 313 static int hexium_detach(struct saa7146_dev *dev)
 314 {
 315         struct hexium *hexium = (struct hexium *) dev->ext_priv;
 316
 317         DEB_EE("dev:%p\n", dev);
 318
 319         saa7146_unregister_device(&hexium->video_dev, dev);
 320         saa7146_vv_release(dev);
 321
 322         hexium_num--;
 323
 324         i2c_del_adapter(&hexium->i2c_adapter);
 325         kfree(hexium);
 326         return 0;
 327 }
 328
 329 static int std_callback(struct saa7146_dev *dev, struct saa7146_standard *std)
 330 {
 331         struct hexium *hexium = (struct hexium *) dev->ext_priv;
 332
 333         if (V4L2_STD_PAL == std->id) {
 334                 hexium_set_standard(hexium, hexium_pal);
 335                 hexium->cur_std = V4L2_STD_PAL;
 336                 return 0;
 337         } else if (V4L2_STD_NTSC == std->id) {
 338                 hexium_set_standard(hexium, hexium_ntsc);
 339                 hexium->cur_std = V4L2_STD_NTSC;
 340                 return 0;
 341         } else if (V4L2_STD_SECAM == std->id) {
 342                 hexium_set_standard(hexium, hexium_secam);
 343                 hexium->cur_std = V4L2_STD_SECAM;
 344                 return 0;
 345         }
 346
 347         return -1;
 348 }
 349
 350 static struct saa7146_extension hexium_extension;
 351
 352 static struct saa7146_pci_extension_data hexium_gemini_4bnc = {
 353         .ext_priv = "Hexium Gemini (4 BNC)",
 354         .ext = &hexium_extension,
 355 };
 356
 357 static struct saa7146_pci_extension_data hexium_gemini_dual_4bnc = {
 358         .ext_priv = "Hexium Gemini Dual (4 BNC)",
 359         .ext = &hexium_extension,
 360 };
 361
 362 static const struct pci_device_id pci_tbl[] = {
 363         {
 364          .vendor = PCI_VENDOR_ID_PHILIPS,
 365          .device = PCI_DEVICE_ID_PHILIPS_SAA7146,
 366          .subvendor = 0x17c8,
 367          .subdevice = 0x2401,
 368          .driver_data = (unsigned long) &hexium_gemini_4bnc,
 369          },
 370         {
 371          .vendor = PCI_VENDOR_ID_PHILIPS,
 372          .device = PCI_DEVICE_ID_PHILIPS_SAA7146,
 373          .subvendor = 0x17c8,
 374          .subdevice = 0x2402,
 375          .driver_data = (unsigned long) &hexium_gemini_dual_4bnc,
 376          },
 377         {
 378          .vendor = 0,
 379          }
 380 };
 381
 382 MODULE_DEVICE_TABLE(pci, pci_tbl);
 383
 384 static struct saa7146_ext_vv vv_data = {
 385         .inputs = HEXIUM_INPUTS,
 386         .capabilities = 0,
 387         .stds = &hexium_standards[0],
 388         .num_stds = ARRAY_SIZE(hexium_standards),
 389         .std_callback = &std_callback,
 390 };
 391
 392 static struct saa7146_extension hexium_extension = {
 393         .name = "hexium gemini",
 394         .flags = SAA7146_USE_I2C_IRQ,
 395
 396         .pci_tbl = &pci_tbl[0],
 397         .module = THIS_MODULE,
 398
 399         .attach = hexium_attach,
 400         .detach = hexium_detach,
 401
 402         .irq_mask = 0,
 403         .irq_func = NULL,
 404 };
 405
 406 static int __init hexium_init_module(void)
 407 {
 408         if (0 != saa7146_register_extension(&hexium_extension)) {
 409                 DEB_S("failed to register extension\n");
 410                 return -ENODEV;
 411         }
 412
 413         return 0;
 414 }
 415
 416 static void __exit hexium_cleanup_module(void)
 417 {
 418         saa7146_unregister_extension(&hexium_extension);
 419 }
 420
 421 module_init(hexium_init_module);
 422 module_exit(hexium_cleanup_module);
 423
 424 MODULE_DESCRIPTION("video4linux-2 driver for Hexium Gemini frame grabber cards");
 425 MODULE_AUTHOR("Michael Hunold <michael@mihu.de>");
 426 MODULE_LICENSE("GPL");