drivers/staging/media/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  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software Foundation,
  15  * Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
  16  */
  17
  18 #include <linux/module.h>
  19 #include <linux/usb.h>
  20 #include <linux/i2c.h>
  21 #include <linux/videodev2.h>
  22 #include <linux/slab.h>
  23 #include <media/v4l2-device.h>
  24 #include <media/v4l2-common.h>
  25 #include <media/v4l2-subdev.h>
  26 #include "go7007-priv.h"
  27
  28 MODULE_DESCRIPTION("Sensoray 2250/2251 i2c v4l2 subdev driver");
  29 MODULE_LICENSE("GPL v2");
  30
  31 /*
  32  * Note: this board has two i2c devices: a vpx3226f and a tlv320aic23b.
  33  * Due to the unusual way these are accessed on this device we do not
  34  * reuse the i2c drivers, but instead they are implemented in this
  35  * driver. It would be nice to improve on this, though.
  36  */
  37
  38 #define TLV320_ADDRESS      0x34
  39 #define VPX322_ADDR_ANALOGCONTROL1      0x02
  40 #define VPX322_ADDR_BRIGHTNESS0         0x0127
  41 #define VPX322_ADDR_BRIGHTNESS1         0x0131
  42 #define VPX322_ADDR_CONTRAST0           0x0128
  43 #define VPX322_ADDR_CONTRAST1           0x0132
  44 #define VPX322_ADDR_HUE                 0x00dc
  45 #define VPX322_ADDR_SAT                 0x0030
  46
  47 struct go7007_usb_board {
  48         unsigned int flags;
  49         struct go7007_board_info main_info;
  50 };
  51
  52 struct go7007_usb {
  53         struct go7007_usb_board *board;
  54         struct mutex i2c_lock;
  55         struct usb_device *usbdev;
  56         struct urb *video_urbs[8];
  57         struct urb *audio_urbs[8];
  58         struct urb *intr_urb;
  59 };
  60
  61 static unsigned char aud_regs[] = {
  62         0x1e, 0x00,
  63         0x00, 0x17,
  64         0x02, 0x17,
  65         0x04, 0xf9,
  66         0x06, 0xf9,
  67         0x08, 0x02,
  68         0x0a, 0x00,
  69         0x0c, 0x00,
  70         0x0a, 0x00,
  71         0x0c, 0x00,
  72         0x0e, 0x02,
  73         0x10, 0x00,
  74         0x12, 0x01,
  75         0x00, 0x00,
  76 };
  77
  78
  79 static unsigned char vid_regs[] = {
  80         0xF2, 0x0f,
  81         0xAA, 0x00,
  82         0xF8, 0xff,
  83         0x00, 0x00,
  84 };
  85
  86 static u16 vid_regs_fp[] = {
  87         0x028, 0x067,
  88         0x120, 0x016,
  89         0x121, 0xcF2,
  90         0x122, 0x0F2,
  91         0x123, 0x00c,
  92         0x124, 0x2d0,
  93         0x125, 0x2e0,
  94         0x126, 0x004,
  95         0x128, 0x1E0,
  96         0x12A, 0x016,
  97         0x12B, 0x0F2,
  98         0x12C, 0x0F2,
  99         0x12D, 0x00c,
 100         0x12E, 0x2d0,
 101         0x12F, 0x2e0,
 102         0x130, 0x004,
 103         0x132, 0x1E0,
 104         0x140, 0x060,
 105         0x153, 0x00C,
 106         0x154, 0x200,
 107         0x150, 0x801,
 108         0x000, 0x000
 109 };
 110
 111 /* PAL specific values */
 112 static u16 vid_regs_fp_pal[] = {
 113         0x120, 0x017,
 114         0x121, 0xd22,
 115         0x122, 0x122,
 116         0x12A, 0x017,
 117         0x12B, 0x122,
 118         0x12C, 0x122,
 119         0x140, 0x060,
 120         0x000, 0x000,
 121 };
 122
 123 struct s2250 {
 124         struct v4l2_subdev sd;
 125         struct v4l2_ctrl_handler hdl;
 126         v4l2_std_id std;
 127         int input;
 128         int brightness;
 129         int contrast;
 130         int saturation;
 131         int hue;
 132         int reg12b_val;
 133         int audio_input;
 134         struct i2c_client *audio;
 135 };
 136
 137 static inline struct s2250 *to_state(struct v4l2_subdev *sd)
 138 {
 139         return container_of(sd, struct s2250, sd);
 140 }
 141
 142 /* from go7007-usb.c which is Copyright (C) 2005-2006 Micronas USA Inc.*/
 143 static int go7007_usb_vendor_request(struct go7007 *go, u16 request,
 144         u16 value, u16 index, void *transfer_buffer, int length, int in)
 145 {
 146         struct go7007_usb *usb = go->hpi_context;
 147         int timeout = 5000;
 148
 149         if (in) {
 150                 return usb_control_msg(usb->usbdev,
 151                                 usb_rcvctrlpipe(usb->usbdev, 0), request,
 152                                 USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
 153                                 value, index, transfer_buffer, length, timeout);
 154         } else {
 155                 return usb_control_msg(usb->usbdev,
 156                                 usb_sndctrlpipe(usb->usbdev, 0), request,
 157                                 USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 158                                 value, index, transfer_buffer, length, timeout);
 159         }
 160 }
 161 /* end from go7007-usb.c which is Copyright (C) 2005-2006 Micronas USA Inc.*/
 162
 163 static int write_reg(struct i2c_client *client, u8 reg, u8 value)
 164 {
 165         struct go7007 *go = i2c_get_adapdata(client->adapter);
 166         struct go7007_usb *usb;
 167         int rc;
 168         int dev_addr = client->addr << 1;  /* firmware wants 8-bit address */
 169         u8 *buf;
 170
 171         if (go == NULL)
 172                 return -ENODEV;
 173
 174         if (go->status == STATUS_SHUTDOWN)
 175                 return -EBUSY;
 176
 177         buf = kzalloc(16, GFP_KERNEL);
 178         if (buf == NULL)
 179                 return -ENOMEM;
 180
 181         usb = go->hpi_context;
 182         if (mutex_lock_interruptible(&usb->i2c_lock) != 0) {
 183                 dev_info(&client->dev, "i2c lock failed\n");
 184                 kfree(buf);
 185                 return -EINTR;
 186         }
 187         rc = go7007_usb_vendor_request(go, 0x55, dev_addr,
 188                                        (reg<<8 | value),
 189                                        buf,
 190                                        16, 1);
 191
 192         mutex_unlock(&usb->i2c_lock);
 193         kfree(buf);
 194         return rc;
 195 }
 196
 197 static int write_reg_fp(struct i2c_client *client, u16 addr, u16 val)
 198 {
 199         struct go7007 *go = i2c_get_adapdata(client->adapter);
 200         struct go7007_usb *usb;
 201         int rc;
 202         u8 *buf;
 203         struct s2250 *dec = i2c_get_clientdata(client);
 204
 205         if (go == NULL)
 206                 return -ENODEV;
 207
 208         if (go->status == STATUS_SHUTDOWN)
 209                 return -EBUSY;
 210
 211         buf = kzalloc(16, GFP_KERNEL);
 212
 213         if (buf == NULL)
 214                 return -ENOMEM;
 215
 216
 217
 218         memset(buf, 0xcd, 6);
 219
 220         usb = go->hpi_context;
 221         if (mutex_lock_interruptible(&usb->i2c_lock) != 0) {
 222                 dev_info(&client->dev, "i2c lock failed\n");
 223                 kfree(buf);
 224                 return -EINTR;
 225         }
 226         rc = go7007_usb_vendor_request(go, 0x57, addr, val, buf, 16, 1);
 227         mutex_unlock(&usb->i2c_lock);
 228         if (rc < 0) {
 229                 kfree(buf);
 230                 return rc;
 231         }
 232
 233         if (buf[0] == 0) {
 234                 unsigned int subaddr, val_read;
 235
 236                 subaddr = (buf[4] << 8) + buf[5];
 237                 val_read = (buf[2] << 8) + buf[3];
 238                 kfree(buf);
 239                 if (val_read != val) {
 240                         dev_info(&client->dev, "invalid fp write %x %x\n",
 241                                  val_read, val);
 242                         return -EFAULT;
 243                 }
 244                 if (subaddr != addr) {
 245                         dev_info(&client->dev, "invalid fp write addr %x %x\n",
 246                                  subaddr, addr);
 247                         return -EFAULT;
 248                 }
 249         } else {
 250                 kfree(buf);
 251                 return -EFAULT;
 252         }
 253
 254         /* save last 12b value */
 255         if (addr == 0x12b)
 256                 dec->reg12b_val = val;
 257
 258         return 0;
 259 }
 260
 261 static int read_reg_fp(struct i2c_client *client, u16 addr, u16 *val)
 262 {
 263         struct go7007 *go = i2c_get_adapdata(client->adapter);
 264         struct go7007_usb *usb;
 265         int rc;
 266         u8 *buf;
 267
 268         if (go == NULL)
 269                 return -ENODEV;
 270
 271         if (go->status == STATUS_SHUTDOWN)
 272                 return -EBUSY;
 273
 274         buf = kzalloc(16, GFP_KERNEL);
 275
 276         if (buf == NULL)
 277                 return -ENOMEM;
 278
 279
 280
 281         memset(buf, 0xcd, 6);
 282         usb = go->hpi_context;
 283         if (mutex_lock_interruptible(&usb->i2c_lock) != 0) {
 284                 dev_info(&client->dev, "i2c lock failed\n");
 285                 kfree(buf);
 286                 return -EINTR;
 287         }
 288         rc = go7007_usb_vendor_request(go, 0x58, addr, 0, buf, 16, 1);
 289         mutex_unlock(&usb->i2c_lock);
 290         if (rc < 0) {
 291                 kfree(buf);
 292                 return rc;
 293         }
 294
 295         *val = (buf[0] << 8) | buf[1];
 296         kfree(buf);
 297
 298         return 0;
 299 }
 300
 301
 302 static int write_regs(struct i2c_client *client, u8 *regs)
 303 {
 304         int i;
 305
 306         for (i = 0; !((regs[i] == 0x00) && (regs[i+1] == 0x00)); i += 2) {
 307                 if (write_reg(client, regs[i], regs[i+1]) < 0) {
 308                         dev_info(&client->dev, "failed\n");
 309                         return -1;
 310                 }
 311         }
 312         return 0;
 313 }
 314
 315 static int write_regs_fp(struct i2c_client *client, u16 *regs)
 316 {
 317         int i;
 318
 319         for (i = 0; !((regs[i] == 0x00) && (regs[i+1] == 0x00)); i += 2) {
 320                 if (write_reg_fp(client, regs[i], regs[i+1]) < 0) {
 321                         dev_info(&client->dev, "failed fp\n");
 322                         return -1;
 323                 }
 324         }
 325         return 0;
 326 }
 327
 328
 329 /* ------------------------------------------------------------------------- */
 330
 331 static int s2250_s_video_routing(struct v4l2_subdev *sd, u32 input, u32 output,
 332                                  u32 config)
 333 {
 334         struct s2250 *state = to_state(sd);
 335         struct i2c_client *client = v4l2_get_subdevdata(sd);
 336         int vidsys;
 337
 338         vidsys = (state->std == V4L2_STD_NTSC) ? 0x01 : 0x00;
 339         if (input == 0) {
 340                 /* composite */
 341                 write_reg_fp(client, 0x20, 0x020 | vidsys);
 342                 write_reg_fp(client, 0x21, 0x662);
 343                 write_reg_fp(client, 0x140, 0x060);
 344         } else if (input == 1) {
 345                 /* S-Video */
 346                 write_reg_fp(client, 0x20, 0x040 | vidsys);
 347                 write_reg_fp(client, 0x21, 0x666);
 348                 write_reg_fp(client, 0x140, 0x060);
 349         } else {
 350                 return -EINVAL;
 351         }
 352         state->input = input;
 353         return 0;
 354 }
 355
 356 static int s2250_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)
 357 {
 358         struct s2250 *state = to_state(sd);
 359         struct i2c_client *client = v4l2_get_subdevdata(sd);
 360         u16 vidsource;
 361
 362         vidsource = (state->input == 1) ? 0x040 : 0x020;
 363         if (norm & V4L2_STD_625_50) {
 364                 write_regs_fp(client, vid_regs_fp);
 365                 write_regs_fp(client, vid_regs_fp_pal);
 366                 write_reg_fp(client, 0x20, vidsource);
 367         } else {
 368                 write_regs_fp(client, vid_regs_fp);
 369                 write_reg_fp(client, 0x20, vidsource | 1);
 370         }
 371         state->std = norm;
 372         return 0;
 373 }
 374
 375 static int s2250_s_ctrl(struct v4l2_ctrl *ctrl)
 376 {
 377         struct s2250 *state = container_of(ctrl->handler, struct s2250, hdl);
 378         struct i2c_client *client = v4l2_get_subdevdata(&state->sd);
 379         u16 oldvalue;
 380
 381         switch (ctrl->id) {
 382         case V4L2_CID_BRIGHTNESS:
 383                 read_reg_fp(client, VPX322_ADDR_BRIGHTNESS0, &oldvalue);
 384                 write_reg_fp(client, VPX322_ADDR_BRIGHTNESS0,
 385                              ctrl->val | (oldvalue & ~0xff));
 386                 read_reg_fp(client, VPX322_ADDR_BRIGHTNESS1, &oldvalue);
 387                 write_reg_fp(client, VPX322_ADDR_BRIGHTNESS1,
 388                              ctrl->val | (oldvalue & ~0xff));
 389                 write_reg_fp(client, 0x140, 0x60);
 390                 break;
 391         case V4L2_CID_CONTRAST:
 392                 read_reg_fp(client, VPX322_ADDR_CONTRAST0, &oldvalue);
 393                 write_reg_fp(client, VPX322_ADDR_CONTRAST0,
 394                              ctrl->val | (oldvalue & ~0x3f));
 395                 read_reg_fp(client, VPX322_ADDR_CONTRAST1, &oldvalue);
 396                 write_reg_fp(client, VPX322_ADDR_CONTRAST1,
 397                              ctrl->val | (oldvalue & ~0x3f));
 398                 write_reg_fp(client, 0x140, 0x60);
 399                 break;
 400         case V4L2_CID_SATURATION:
 401                 write_reg_fp(client, VPX322_ADDR_SAT, ctrl->val);
 402                 break;
 403         case V4L2_CID_HUE:
 404                 write_reg_fp(client, VPX322_ADDR_HUE, ctrl->val);
 405                 break;
 406         default:
 407                 return -EINVAL;
 408         }
 409         return 0;
 410 }
 411
 412 static int s2250_s_mbus_fmt(struct v4l2_subdev *sd,
 413                         struct v4l2_mbus_framefmt *fmt)
 414 {
 415         struct s2250 *state = to_state(sd);
 416         struct i2c_client *client = v4l2_get_subdevdata(sd);
 417
 418         if (fmt->height < 640) {
 419                 write_reg_fp(client, 0x12b, state->reg12b_val | 0x400);
 420                 write_reg_fp(client, 0x140, 0x060);
 421         } else {
 422                 write_reg_fp(client, 0x12b, state->reg12b_val & ~0x400);
 423                 write_reg_fp(client, 0x140, 0x060);
 424         }
 425         return 0;
 426 }
 427
 428 static int s2250_s_audio_routing(struct v4l2_subdev *sd, u32 input, u32 output,
 429                                  u32 config)
 430 {
 431         struct s2250 *state = to_state(sd);
 432
 433         switch (input) {
 434         case 0:
 435                 write_reg(state->audio, 0x08, 0x02); /* Line In */
 436                 break;
 437         case 1:
 438                 write_reg(state->audio, 0x08, 0x04); /* Mic */
 439                 break;
 440         case 2:
 441                 write_reg(state->audio, 0x08, 0x05); /* Mic Boost */
 442                 break;
 443         default:
 444                 return -EINVAL;
 445         }
 446         state->audio_input = input;
 447         return 0;
 448 }
 449
 450
 451 static int s2250_log_status(struct v4l2_subdev *sd)
 452 {
 453         struct s2250 *state = to_state(sd);
 454
 455         v4l2_info(sd, "Standard: %s\n", state->std == V4L2_STD_NTSC ? "NTSC" :
 456                                         state->std == V4L2_STD_PAL ? "PAL" :
 457                                         state->std == V4L2_STD_SECAM ? "SECAM" :
 458                                         "unknown");
 459         v4l2_info(sd, "Input: %s\n", state->input == 0 ? "Composite" :
 460                                         state->input == 1 ? "S-video" :
 461                                         "error");
 462         v4l2_info(sd, "Audio input: %s\n", state->audio_input == 0 ? "Line In" :
 463                                         state->audio_input == 1 ? "Mic" :
 464                                         state->audio_input == 2 ? "Mic Boost" :
 465                                         "error");
 466         return v4l2_ctrl_subdev_log_status(sd);
 467 }
 468
 469 /* --------------------------------------------------------------------------*/
 470
 471 static const struct v4l2_ctrl_ops s2250_ctrl_ops = {
 472         .s_ctrl = s2250_s_ctrl,
 473 };
 474
 475 static const struct v4l2_subdev_core_ops s2250_core_ops = {
 476         .log_status = s2250_log_status,
 477         .s_std = s2250_s_std,
 478 };
 479
 480 static const struct v4l2_subdev_audio_ops s2250_audio_ops = {
 481         .s_routing = s2250_s_audio_routing,
 482 };
 483
 484 static const struct v4l2_subdev_video_ops s2250_video_ops = {
 485         .s_routing = s2250_s_video_routing,
 486         .s_mbus_fmt = s2250_s_mbus_fmt,
 487 };
 488
 489 static const struct v4l2_subdev_ops s2250_ops = {
 490         .core = &s2250_core_ops,
 491         .audio = &s2250_audio_ops,
 492         .video = &s2250_video_ops,
 493 };
 494
 495 /* --------------------------------------------------------------------------*/
 496
 497 static int s2250_probe(struct i2c_client *client,
 498                        const struct i2c_device_id *id)
 499 {
 500         struct i2c_client *audio;
 501         struct i2c_adapter *adapter = client->adapter;
 502         struct s2250 *state;
 503         struct v4l2_subdev *sd;
 504         u8 *data;
 505         struct go7007 *go = i2c_get_adapdata(adapter);
 506         struct go7007_usb *usb = go->hpi_context;
 507
 508         audio = i2c_new_dummy(adapter, TLV320_ADDRESS >> 1);
 509         if (audio == NULL)
 510                 return -ENOMEM;
 511
 512         state = kzalloc(sizeof(struct s2250), GFP_KERNEL);
 513         if (state == NULL) {
 514                 i2c_unregister_device(audio);
 515                 return -ENOMEM;
 516         }
 517
 518         sd = &state->sd;
 519         v4l2_i2c_subdev_init(sd, client, &s2250_ops);
 520
 521         v4l2_info(sd, "initializing %s at address 0x%x on %s\n",
 522                "Sensoray 2250/2251", client->addr, client->adapter->name);
 523
 524         v4l2_ctrl_handler_init(&state->hdl, 4);
 525         v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,
 526                 V4L2_CID_BRIGHTNESS, -128, 127, 1, 0);
 527         v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,
 528                 V4L2_CID_CONTRAST, 0, 0x3f, 1, 0x32);
 529         v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,
 530                 V4L2_CID_SATURATION, 0, 4094, 1, 2070);
 531         v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,
 532                 V4L2_CID_HUE, -512, 511, 1, 0);
 533         sd->ctrl_handler = &state->hdl;
 534         if (state->hdl.error) {
 535                 int err = state->hdl.error;
 536
 537                 v4l2_ctrl_handler_free(&state->hdl);
 538                 kfree(state);
 539                 return err;
 540         }
 541
 542         state->std = V4L2_STD_NTSC;
 543         state->brightness = 50;
 544         state->contrast = 50;
 545         state->saturation = 50;
 546         state->hue = 0;
 547         state->audio = audio;
 548
 549         /* initialize the audio */
 550         if (write_regs(audio, aud_regs) < 0) {
 551                 dev_err(&client->dev, "error initializing audio\n");
 552                 goto fail;
 553         }
 554
 555         if (write_regs(client, vid_regs) < 0) {
 556                 dev_err(&client->dev, "error initializing decoder\n");
 557                 goto fail;
 558         }
 559         if (write_regs_fp(client, vid_regs_fp) < 0) {
 560                 dev_err(&client->dev, "error initializing decoder\n");
 561                 goto fail;
 562         }
 563         /* set default channel */
 564         /* composite */
 565         write_reg_fp(client, 0x20, 0x020 | 1);
 566         write_reg_fp(client, 0x21, 0x662);
 567         write_reg_fp(client, 0x140, 0x060);
 568
 569         /* set default audio input */
 570         state->audio_input = 0;
 571         write_reg(client, 0x08, 0x02); /* Line In */
 572
 573         if (mutex_lock_interruptible(&usb->i2c_lock) == 0) {
 574                 data = kzalloc(16, GFP_KERNEL);
 575                 if (data != NULL) {
 576                         int rc;
 577                         rc = go7007_usb_vendor_request(go, 0x41, 0, 0,
 578                                                        data, 16, 1);
 579                         if (rc > 0) {
 580                                 u8 mask;
 581                                 data[0] = 0;
 582                                 mask = 1<<5;
 583                                 data[0] &= ~mask;
 584                                 data[1] |= mask;
 585                                 go7007_usb_vendor_request(go, 0x40, 0,
 586                                                           (data[1]<<8)
 587                                                           + data[1],
 588                                                           data, 16, 0);
 589                         }
 590                         kfree(data);
 591                 }
 592                 mutex_unlock(&usb->i2c_lock);
 593         }
 594
 595         v4l2_info(sd, "initialized successfully\n");
 596         return 0;
 597
 598 fail:
 599         i2c_unregister_device(audio);
 600         v4l2_ctrl_handler_free(&state->hdl);
 601         kfree(state);
 602         return -EIO;
 603 }
 604
 605 static int s2250_remove(struct i2c_client *client)
 606 {
 607         struct s2250 *state = to_state(i2c_get_clientdata(client));
 608
 609         v4l2_device_unregister_subdev(&state->sd);
 610         v4l2_ctrl_handler_free(&state->hdl);
 611         kfree(state);
 612         return 0;
 613 }
 614
 615 static const struct i2c_device_id s2250_id[] = {
 616         { "s2250", 0 },
 617         { }
 618 };
 619 MODULE_DEVICE_TABLE(i2c, s2250_id);
 620
 621 static struct i2c_driver s2250_driver = {
 622         .driver = {
 623                 .owner  = THIS_MODULE,
 624                 .name   = "s2250",
 625         },
 626         .probe          = s2250_probe,
 627         .remove         = s2250_remove,
 628         .id_table       = s2250_id,
 629 };
 630
 631 module_i2c_driver(s2250_driver);