kernel/drivers/media/usb/go7007/s2250-board.c

   1 /*
   2  * Copyright (C) 2008 Sensoray Company 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
  14 #include <linux/module.h>
  15 #include <linux/usb.h>
  16 #include <linux/i2c.h>
  17 #include <linux/videodev2.h>
  18 #include <linux/slab.h>
  19 #include <media/v4l2-device.h>
  20 #include <media/v4l2-common.h>
  21 #include <media/v4l2-subdev.h>
  22 #include "go7007-priv.h"
  23
  24 MODULE_DESCRIPTION("Sensoray 2250/2251 i2c v4l2 subdev driver");
  25 MODULE_LICENSE("GPL v2");
  26
  27 /*
  28  * Note: this board has two i2c devices: a vpx3226f and a tlv320aic23b.
  29  * Due to the unusual way these are accessed on this device we do not
  30  * reuse the i2c drivers, but instead they are implemented in this
  31  * driver. It would be nice to improve on this, though.
  32  */
  33
  34 #define TLV320_ADDRESS      0x34
  35 #define VPX322_ADDR_ANALOGCONTROL1      0x02
  36 #define VPX322_ADDR_BRIGHTNESS0         0x0127
  37 #define VPX322_ADDR_BRIGHTNESS1         0x0131
  38 #define VPX322_ADDR_CONTRAST0           0x0128
  39 #define VPX322_ADDR_CONTRAST1           0x0132
  40 #define VPX322_ADDR_HUE                 0x00dc
  41 #define VPX322_ADDR_SAT                 0x0030
  42
  43 struct go7007_usb_board {
  44         unsigned int flags;
  45         struct go7007_board_info main_info;
  46 };
  47
  48 struct go7007_usb {
  49         struct go7007_usb_board *board;
  50         struct mutex i2c_lock;
  51         struct usb_device *usbdev;
  52         struct urb *video_urbs[8];
  53         struct urb *audio_urbs[8];
  54         struct urb *intr_urb;
  55 };
  56
  57 static unsigned char aud_regs[] = {
  58         0x1e, 0x00,
  59         0x00, 0x17,
  60         0x02, 0x17,
  61         0x04, 0xf9,
  62         0x06, 0xf9,
  63         0x08, 0x02,
  64         0x0a, 0x00,
  65         0x0c, 0x00,
  66         0x0a, 0x00,
  67         0x0c, 0x00,
  68         0x0e, 0x02,
  69         0x10, 0x00,
  70         0x12, 0x01,
  71         0x00, 0x00,
  72 };
  73
  74
  75 static unsigned char vid_regs[] = {
  76         0xF2, 0x0f,
  77         0xAA, 0x00,
  78         0xF8, 0xff,
  79         0x00, 0x00,
  80 };
  81
  82 static u16 vid_regs_fp[] = {
  83         0x028, 0x067,
  84         0x120, 0x016,
  85         0x121, 0xcF2,
  86         0x122, 0x0F2,
  87         0x123, 0x00c,
  88         0x124, 0x2d0,
  89         0x125, 0x2e0,
  90         0x126, 0x004,
  91         0x128, 0x1E0,
  92         0x12A, 0x016,
  93         0x12B, 0x0F2,
  94         0x12C, 0x0F2,
  95         0x12D, 0x00c,
  96         0x12E, 0x2d0,
  97         0x12F, 0x2e0,
  98         0x130, 0x004,
  99         0x132, 0x1E0,
 100         0x140, 0x060,
 101         0x153, 0x00C,
 102         0x154, 0x200,
 103         0x150, 0x801,
 104         0x000, 0x000
 105 };
 106
 107 /* PAL specific values */
 108 static u16 vid_regs_fp_pal[] = {
 109         0x120, 0x017,
 110         0x121, 0xd22,
 111         0x122, 0x122,
 112         0x12A, 0x017,
 113         0x12B, 0x122,
 114         0x12C, 0x122,
 115         0x140, 0x060,
 116         0x000, 0x000,
 117 };
 118
 119 struct s2250 {
 120         struct v4l2_subdev sd;
 121         struct v4l2_ctrl_handler hdl;
 122         v4l2_std_id std;
 123         int input;
 124         int brightness;
 125         int contrast;
 126         int saturation;
 127         int hue;
 128         int reg12b_val;
 129         int audio_input;
 130         struct i2c_client *audio;
 131 };
 132
 133 static inline struct s2250 *to_state(struct v4l2_subdev *sd)
 134 {
 135         return container_of(sd, struct s2250, sd);
 136 }
 137
 138 /* from go7007-usb.c which is Copyright (C) 2005-2006 Micronas USA Inc.*/
 139 static int go7007_usb_vendor_request(struct go7007 *go, u16 request,
 140         u16 value, u16 index, void *transfer_buffer, int length, int in)
 141 {
 142         struct go7007_usb *usb = go->hpi_context;
 143         int timeout = 5000;
 144
 145         if (in) {
 146                 return usb_control_msg(usb->usbdev,
 147                                 usb_rcvctrlpipe(usb->usbdev, 0), request,
 148                                 USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
 149                                 value, index, transfer_buffer, length, timeout);
 150         } else {
 151                 return usb_control_msg(usb->usbdev,
 152                                 usb_sndctrlpipe(usb->usbdev, 0), request,
 153                                 USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 154                                 value, index, transfer_buffer, length, timeout);
 155         }
 156 }
 157 /* end from go7007-usb.c which is Copyright (C) 2005-2006 Micronas USA Inc.*/
 158
 159 static int write_reg(struct i2c_client *client, u8 reg, u8 value)
 160 {
 161         struct go7007 *go = i2c_get_adapdata(client->adapter);
 162         struct go7007_usb *usb;
 163         int rc;
 164         int dev_addr = client->addr << 1;  /* firmware wants 8-bit address */
 165         u8 *buf;
 166
 167         if (go == NULL)
 168                 return -ENODEV;
 169
 170         if (go->status == STATUS_SHUTDOWN)
 171                 return -EBUSY;
 172
 173         buf = kzalloc(16, GFP_KERNEL);
 174         if (buf == NULL)
 175                 return -ENOMEM;
 176
 177         usb = go->hpi_context;
 178         if (mutex_lock_interruptible(&usb->i2c_lock) != 0) {
 179                 dev_info(&client->dev, "i2c lock failed\n");
 180                 kfree(buf);
 181                 return -EINTR;
 182         }
 183         rc = go7007_usb_vendor_request(go, 0x55, dev_addr,
 184                                        (reg<<8 | value),
 185                                        buf,
 186                                        16, 1);
 187
 188         mutex_unlock(&usb->i2c_lock);
 189         kfree(buf);
 190         return rc;
 191 }
 192
 193 static int write_reg_fp(struct i2c_client *client, u16 addr, u16 val)
 194 {
 195         struct go7007 *go = i2c_get_adapdata(client->adapter);
 196         struct go7007_usb *usb;
 197         int rc;
 198         u8 *buf;
 199         struct s2250 *dec = i2c_get_clientdata(client);
 200
 201         if (go == NULL)
 202                 return -ENODEV;
 203
 204         if (go->status == STATUS_SHUTDOWN)
 205                 return -EBUSY;
 206
 207         buf = kzalloc(16, GFP_KERNEL);
 208
 209         if (buf == NULL)
 210                 return -ENOMEM;
 211
 212
 213
 214         memset(buf, 0xcd, 6);
 215
 216         usb = go->hpi_context;
 217         if (mutex_lock_interruptible(&usb->i2c_lock) != 0) {
 218                 dev_info(&client->dev, "i2c lock failed\n");
 219                 kfree(buf);
 220                 return -EINTR;
 221         }
 222         rc = go7007_usb_vendor_request(go, 0x57, addr, val, buf, 16, 1);
 223         mutex_unlock(&usb->i2c_lock);
 224         if (rc < 0) {
 225                 kfree(buf);
 226                 return rc;
 227         }
 228
 229         if (buf[0] == 0) {
 230                 unsigned int subaddr, val_read;
 231
 232                 subaddr = (buf[4] << 8) + buf[5];
 233                 val_read = (buf[2] << 8) + buf[3];
 234                 kfree(buf);
 235                 if (val_read != val) {
 236                         dev_info(&client->dev, "invalid fp write %x %x\n",
 237                                  val_read, val);
 238                         return -EFAULT;
 239                 }
 240                 if (subaddr != addr) {
 241                         dev_info(&client->dev, "invalid fp write addr %x %x\n",
 242                                  subaddr, addr);
 243                         return -EFAULT;
 244                 }
 245         } else {
 246                 kfree(buf);
 247                 return -EFAULT;
 248         }
 249
 250         /* save last 12b value */
 251         if (addr == 0x12b)
 252                 dec->reg12b_val = val;
 253
 254         return 0;
 255 }
 256
 257 static int read_reg_fp(struct i2c_client *client, u16 addr, u16 *val)
 258 {
 259         struct go7007 *go = i2c_get_adapdata(client->adapter);
 260         struct go7007_usb *usb;
 261         int rc;
 262         u8 *buf;
 263
 264         if (go == NULL)
 265                 return -ENODEV;
 266
 267         if (go->status == STATUS_SHUTDOWN)
 268                 return -EBUSY;
 269
 270         buf = kzalloc(16, GFP_KERNEL);
 271
 272         if (buf == NULL)
 273                 return -ENOMEM;
 274
 275
 276
 277         memset(buf, 0xcd, 6);
 278         usb = go->hpi_context;
 279         if (mutex_lock_interruptible(&usb->i2c_lock) != 0) {
 280                 dev_info(&client->dev, "i2c lock failed\n");
 281                 kfree(buf);
 282                 return -EINTR;
 283         }
 284         rc = go7007_usb_vendor_request(go, 0x58, addr, 0, buf, 16, 1);
 285         mutex_unlock(&usb->i2c_lock);
 286         if (rc < 0) {
 287                 kfree(buf);
 288                 return rc;
 289         }
 290
 291         *val = (buf[0] << 8) | buf[1];
 292         kfree(buf);
 293
 294         return 0;
 295 }
 296
 297
 298 static int write_regs(struct i2c_client *client, u8 *regs)
 299 {
 300         int i;
 301
 302         for (i = 0; !((regs[i] == 0x00) && (regs[i+1] == 0x00)); i += 2) {
 303                 if (write_reg(client, regs[i], regs[i+1]) < 0) {
 304                         dev_info(&client->dev, "failed\n");
 305                         return -1;
 306                 }
 307         }
 308         return 0;
 309 }
 310
 311 static int write_regs_fp(struct i2c_client *client, u16 *regs)
 312 {
 313         int i;
 314
 315         for (i = 0; !((regs[i] == 0x00) && (regs[i+1] == 0x00)); i += 2) {
 316                 if (write_reg_fp(client, regs[i], regs[i+1]) < 0) {
 317                         dev_info(&client->dev, "failed fp\n");
 318                         return -1;
 319                 }
 320         }
 321         return 0;
 322 }
 323
 324
 325 /* ------------------------------------------------------------------------- */
 326
 327 static int s2250_s_video_routing(struct v4l2_subdev *sd, u32 input, u32 output,
 328                                  u32 config)
 329 {
 330         struct s2250 *state = to_state(sd);
 331         struct i2c_client *client = v4l2_get_subdevdata(sd);
 332         int vidsys;
 333
 334         vidsys = (state->std == V4L2_STD_NTSC) ? 0x01 : 0x00;
 335         if (input == 0) {
 336                 /* composite */
 337                 write_reg_fp(client, 0x20, 0x020 | vidsys);
 338                 write_reg_fp(client, 0x21, 0x662);
 339                 write_reg_fp(client, 0x140, 0x060);
 340         } else if (input == 1) {
 341                 /* S-Video */
 342                 write_reg_fp(client, 0x20, 0x040 | vidsys);
 343                 write_reg_fp(client, 0x21, 0x666);
 344                 write_reg_fp(client, 0x140, 0x060);
 345         } else {
 346                 return -EINVAL;
 347         }
 348         state->input = input;
 349         return 0;
 350 }
 351
 352 static int s2250_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)
 353 {
 354         struct s2250 *state = to_state(sd);
 355         struct i2c_client *client = v4l2_get_subdevdata(sd);
 356         u16 vidsource;
 357
 358         vidsource = (state->input == 1) ? 0x040 : 0x020;
 359         if (norm & V4L2_STD_625_50) {
 360                 write_regs_fp(client, vid_regs_fp);
 361                 write_regs_fp(client, vid_regs_fp_pal);
 362                 write_reg_fp(client, 0x20, vidsource);
 363         } else {
 364                 write_regs_fp(client, vid_regs_fp);
 365                 write_reg_fp(client, 0x20, vidsource | 1);
 366         }
 367         state->std = norm;
 368         return 0;
 369 }
 370
 371 static int s2250_s_ctrl(struct v4l2_ctrl *ctrl)
 372 {
 373         struct s2250 *state = container_of(ctrl->handler, struct s2250, hdl);
 374         struct i2c_client *client = v4l2_get_subdevdata(&state->sd);
 375         u16 oldvalue;
 376
 377         switch (ctrl->id) {
 378         case V4L2_CID_BRIGHTNESS:
 379                 read_reg_fp(client, VPX322_ADDR_BRIGHTNESS0, &oldvalue);
 380                 write_reg_fp(client, VPX322_ADDR_BRIGHTNESS0,
 381                              ctrl->val | (oldvalue & ~0xff));
 382                 read_reg_fp(client, VPX322_ADDR_BRIGHTNESS1, &oldvalue);
 383                 write_reg_fp(client, VPX322_ADDR_BRIGHTNESS1,
 384                              ctrl->val | (oldvalue & ~0xff));
 385                 write_reg_fp(client, 0x140, 0x60);
 386                 break;
 387         case V4L2_CID_CONTRAST:
 388                 read_reg_fp(client, VPX322_ADDR_CONTRAST0, &oldvalue);
 389                 write_reg_fp(client, VPX322_ADDR_CONTRAST0,
 390                              ctrl->val | (oldvalue & ~0x3f));
 391                 read_reg_fp(client, VPX322_ADDR_CONTRAST1, &oldvalue);
 392                 write_reg_fp(client, VPX322_ADDR_CONTRAST1,
 393                              ctrl->val | (oldvalue & ~0x3f));
 394                 write_reg_fp(client, 0x140, 0x60);
 395                 break;
 396         case V4L2_CID_SATURATION:
 397                 write_reg_fp(client, VPX322_ADDR_SAT, ctrl->val);
 398                 break;
 399         case V4L2_CID_HUE:
 400                 write_reg_fp(client, VPX322_ADDR_HUE, ctrl->val);
 401                 break;
 402         default:
 403                 return -EINVAL;
 404         }
 405         return 0;
 406 }
 407
 408 static int s2250_set_fmt(struct v4l2_subdev *sd,
 409                 struct v4l2_subdev_pad_config *cfg,
 410                 struct v4l2_subdev_format *format)
 411 {
 412         struct v4l2_mbus_framefmt *fmt = &format->format;
 413         struct s2250 *state = to_state(sd);
 414         struct i2c_client *client = v4l2_get_subdevdata(sd);
 415
 416         if (format->pad)
 417                 return -EINVAL;
 418
 419         if (format->which == V4L2_SUBDEV_FORMAT_TRY)
 420                 return 0;
 421
 422         if (fmt->height < 640) {
 423                 write_reg_fp(client, 0x12b, state->reg12b_val | 0x400);
 424                 write_reg_fp(client, 0x140, 0x060);
 425         } else {
 426                 write_reg_fp(client, 0x12b, state->reg12b_val & ~0x400);
 427                 write_reg_fp(client, 0x140, 0x060);
 428         }
 429         return 0;
 430 }
 431
 432 static int s2250_s_audio_routing(struct v4l2_subdev *sd, u32 input, u32 output,
 433                                  u32 config)
 434 {
 435         struct s2250 *state = to_state(sd);
 436
 437         switch (input) {
 438         case 0:
 439                 write_reg(state->audio, 0x08, 0x02); /* Line In */
 440                 break;
 441         case 1:
 442                 write_reg(state->audio, 0x08, 0x04); /* Mic */
 443                 break;
 444         case 2:
 445                 write_reg(state->audio, 0x08, 0x05); /* Mic Boost */
 446                 break;
 447         default:
 448                 return -EINVAL;
 449         }
 450         state->audio_input = input;
 451         return 0;
 452 }
 453
 454
 455 static int s2250_log_status(struct v4l2_subdev *sd)
 456 {
 457         struct s2250 *state = to_state(sd);
 458
 459         v4l2_info(sd, "Standard: %s\n", state->std == V4L2_STD_NTSC ? "NTSC" :
 460                                         state->std == V4L2_STD_PAL ? "PAL" :
 461                                         state->std == V4L2_STD_SECAM ? "SECAM" :
 462                                         "unknown");
 463         v4l2_info(sd, "Input: %s\n", state->input == 0 ? "Composite" :
 464                                         state->input == 1 ? "S-video" :
 465                                         "error");
 466         v4l2_info(sd, "Audio input: %s\n", state->audio_input == 0 ? "Line In" :
 467                                         state->audio_input == 1 ? "Mic" :
 468                                         state->audio_input == 2 ? "Mic Boost" :
 469                                         "error");
 470         return v4l2_ctrl_subdev_log_status(sd);
 471 }
 472
 473 /* --------------------------------------------------------------------------*/
 474
 475 static const struct v4l2_ctrl_ops s2250_ctrl_ops = {
 476         .s_ctrl = s2250_s_ctrl,
 477 };
 478
 479 static const struct v4l2_subdev_core_ops s2250_core_ops = {
 480         .log_status = s2250_log_status,
 481 };
 482
 483 static const struct v4l2_subdev_audio_ops s2250_audio_ops = {
 484         .s_routing = s2250_s_audio_routing,
 485 };
 486
 487 static const struct v4l2_subdev_video_ops s2250_video_ops = {
 488         .s_std = s2250_s_std,
 489         .s_routing = s2250_s_video_routing,
 490 };
 491
 492 static const struct v4l2_subdev_pad_ops s2250_pad_ops = {
 493         .set_fmt = s2250_set_fmt,
 494 };
 495
 496 static const struct v4l2_subdev_ops s2250_ops = {
 497         .core = &s2250_core_ops,
 498         .audio = &s2250_audio_ops,
 499         .video = &s2250_video_ops,
 500         .pad = &s2250_pad_ops,
 501 };
 502
 503 /* --------------------------------------------------------------------------*/
 504
 505 static int s2250_probe(struct i2c_client *client,
 506                        const struct i2c_device_id *id)
 507 {
 508         struct i2c_client *audio;
 509         struct i2c_adapter *adapter = client->adapter;
 510         struct s2250 *state;
 511         struct v4l2_subdev *sd;
 512         u8 *data;
 513         struct go7007 *go = i2c_get_adapdata(adapter);
 514         struct go7007_usb *usb = go->hpi_context;
 515
 516         audio = i2c_new_dummy(adapter, TLV320_ADDRESS >> 1);
 517         if (audio == NULL)
 518                 return -ENOMEM;
 519
 520         state = kzalloc(sizeof(struct s2250), GFP_KERNEL);
 521         if (state == NULL) {
 522                 i2c_unregister_device(audio);
 523                 return -ENOMEM;
 524         }
 525
 526         sd = &state->sd;
 527         v4l2_i2c_subdev_init(sd, client, &s2250_ops);
 528
 529         v4l2_info(sd, "initializing %s at address 0x%x on %s\n",
 530                "Sensoray 2250/2251", client->addr, client->adapter->name);
 531
 532         v4l2_ctrl_handler_init(&state->hdl, 4);
 533         v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,
 534                 V4L2_CID_BRIGHTNESS, -128, 127, 1, 0);
 535         v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,
 536                 V4L2_CID_CONTRAST, 0, 0x3f, 1, 0x32);
 537         v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,
 538                 V4L2_CID_SATURATION, 0, 4094, 1, 2070);
 539         v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,
 540                 V4L2_CID_HUE, -512, 511, 1, 0);
 541         sd->ctrl_handler = &state->hdl;
 542         if (state->hdl.error) {
 543                 int err = state->hdl.error;
 544
 545                 v4l2_ctrl_handler_free(&state->hdl);
 546                 kfree(state);
 547                 return err;
 548         }
 549
 550         state->std = V4L2_STD_NTSC;
 551         state->brightness = 50;
 552         state->contrast = 50;
 553         state->saturation = 50;
 554         state->hue = 0;
 555         state->audio = audio;
 556
 557         /* initialize the audio */
 558         if (write_regs(audio, aud_regs) < 0) {
 559                 dev_err(&client->dev, "error initializing audio\n");
 560                 goto fail;
 561         }
 562
 563         if (write_regs(client, vid_regs) < 0) {
 564                 dev_err(&client->dev, "error initializing decoder\n");
 565                 goto fail;
 566         }
 567         if (write_regs_fp(client, vid_regs_fp) < 0) {
 568                 dev_err(&client->dev, "error initializing decoder\n");
 569                 goto fail;
 570         }
 571         /* set default channel */
 572         /* composite */
 573         write_reg_fp(client, 0x20, 0x020 | 1);
 574         write_reg_fp(client, 0x21, 0x662);
 575         write_reg_fp(client, 0x140, 0x060);
 576
 577         /* set default audio input */
 578         state->audio_input = 0;
 579         write_reg(client, 0x08, 0x02); /* Line In */
 580
 581         if (mutex_lock_interruptible(&usb->i2c_lock) == 0) {
 582                 data = kzalloc(16, GFP_KERNEL);
 583                 if (data != NULL) {
 584                         int rc = go7007_usb_vendor_request(go, 0x41, 0, 0,
 585                                                        data, 16, 1);
 586
 587                         if (rc > 0) {
 588                                 u8 mask;
 589
 590                                 data[0] = 0;
 591                                 mask = 1<<5;
 592                                 data[0] &= ~mask;
 593                                 data[1] |= mask;
 594                                 go7007_usb_vendor_request(go, 0x40, 0,
 595                                                           (data[1]<<8)
 596                                                           + data[1],
 597                                                           data, 16, 0);
 598                         }
 599                         kfree(data);
 600                 }
 601                 mutex_unlock(&usb->i2c_lock);
 602         }
 603
 604         v4l2_info(sd, "initialized successfully\n");
 605         return 0;
 606
 607 fail:
 608         i2c_unregister_device(audio);
 609         v4l2_ctrl_handler_free(&state->hdl);
 610         kfree(state);
 611         return -EIO;
 612 }
 613
 614 static int s2250_remove(struct i2c_client *client)
 615 {
 616         struct s2250 *state = to_state(i2c_get_clientdata(client));
 617
 618         v4l2_device_unregister_subdev(&state->sd);
 619         v4l2_ctrl_handler_free(&state->hdl);
 620         kfree(state);
 621         return 0;
 622 }
 623
 624 static const struct i2c_device_id s2250_id[] = {
 625         { "s2250", 0 },
 626         { }
 627 };
 628 MODULE_DEVICE_TABLE(i2c, s2250_id);
 629
 630 static struct i2c_driver s2250_driver = {
 631         .driver = {
 632                 .name   = "s2250",
 633         },
 634         .probe          = s2250_probe,
 635         .remove         = s2250_remove,
 636         .id_table       = s2250_id,
 637 };
 638
 639 module_i2c_driver(s2250_driver);