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_s_mbus_fmt(struct v4l2_subdev *sd, 409 struct v4l2_mbus_framefmt *fmt) 410 { 411 struct s2250 *state = to_state(sd); 412 struct i2c_client *client = v4l2_get_subdevdata(sd); 413 414 if (fmt->height < 640) { 415 write_reg_fp(client, 0x12b, state->reg12b_val | 0x400); 416 write_reg_fp(client, 0x140, 0x060); 417 } else { 418 write_reg_fp(client, 0x12b, state->reg12b_val & ~0x400); 419 write_reg_fp(client, 0x140, 0x060); 420 } 421 return 0; 422 } 423 424 static int s2250_s_audio_routing(struct v4l2_subdev *sd, u32 input, u32 output, 425 u32 config) 426 { 427 struct s2250 *state = to_state(sd); 428 429 switch (input) { 430 case 0: 431 write_reg(state->audio, 0x08, 0x02); /* Line In */ 432 break; 433 case 1: 434 write_reg(state->audio, 0x08, 0x04); /* Mic */ 435 break; 436 case 2: 437 write_reg(state->audio, 0x08, 0x05); /* Mic Boost */ 438 break; 439 default: 440 return -EINVAL; 441 } 442 state->audio_input = input; 443 return 0; 444 } 445 446 447 static int s2250_log_status(struct v4l2_subdev *sd) 448 { 449 struct s2250 *state = to_state(sd); 450 451 v4l2_info(sd, "Standard: %s\n", state->std == V4L2_STD_NTSC ? "NTSC" : 452 state->std == V4L2_STD_PAL ? "PAL" : 453 state->std == V4L2_STD_SECAM ? "SECAM" : 454 "unknown"); 455 v4l2_info(sd, "Input: %s\n", state->input == 0 ? "Composite" : 456 state->input == 1 ? "S-video" : 457 "error"); 458 v4l2_info(sd, "Audio input: %s\n", state->audio_input == 0 ? "Line In" : 459 state->audio_input == 1 ? "Mic" : 460 state->audio_input == 2 ? "Mic Boost" : 461 "error"); 462 return v4l2_ctrl_subdev_log_status(sd); 463 } 464 465 /* --------------------------------------------------------------------------*/ 466 467 static const struct v4l2_ctrl_ops s2250_ctrl_ops = { 468 .s_ctrl = s2250_s_ctrl, 469 }; 470 471 static const struct v4l2_subdev_core_ops s2250_core_ops = { 472 .log_status = s2250_log_status, 473 }; 474 475 static const struct v4l2_subdev_audio_ops s2250_audio_ops = { 476 .s_routing = s2250_s_audio_routing, 477 }; 478 479 static const struct v4l2_subdev_video_ops s2250_video_ops = { 480 .s_std = s2250_s_std, 481 .s_routing = s2250_s_video_routing, 482 .s_mbus_fmt = s2250_s_mbus_fmt, 483 }; 484 485 static const struct v4l2_subdev_ops s2250_ops = { 486 .core = &s2250_core_ops, 487 .audio = &s2250_audio_ops, 488 .video = &s2250_video_ops, 489 }; 490 491 /* --------------------------------------------------------------------------*/ 492 493 static int s2250_probe(struct i2c_client *client, 494 const struct i2c_device_id *id) 495 { 496 struct i2c_client *audio; 497 struct i2c_adapter *adapter = client->adapter; 498 struct s2250 *state; 499 struct v4l2_subdev *sd; 500 u8 *data; 501 struct go7007 *go = i2c_get_adapdata(adapter); 502 struct go7007_usb *usb = go->hpi_context; 503 504 audio = i2c_new_dummy(adapter, TLV320_ADDRESS >> 1); 505 if (audio == NULL) 506 return -ENOMEM; 507 508 state = kzalloc(sizeof(struct s2250), GFP_KERNEL); 509 if (state == NULL) { 510 i2c_unregister_device(audio); 511 return -ENOMEM; 512 } 513 514 sd = &state->sd; 515 v4l2_i2c_subdev_init(sd, client, &s2250_ops); 516 517 v4l2_info(sd, "initializing %s at address 0x%x on %s\n", 518 "Sensoray 2250/2251", client->addr, client->adapter->name); 519 520 v4l2_ctrl_handler_init(&state->hdl, 4); 521 v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops, 522 V4L2_CID_BRIGHTNESS, -128, 127, 1, 0); 523 v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops, 524 V4L2_CID_CONTRAST, 0, 0x3f, 1, 0x32); 525 v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops, 526 V4L2_CID_SATURATION, 0, 4094, 1, 2070); 527 v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops, 528 V4L2_CID_HUE, -512, 511, 1, 0); 529 sd->ctrl_handler = &state->hdl; 530 if (state->hdl.error) { 531 int err = state->hdl.error; 532 533 v4l2_ctrl_handler_free(&state->hdl); 534 kfree(state); 535 return err; 536 } 537 538 state->std = V4L2_STD_NTSC; 539 state->brightness = 50; 540 state->contrast = 50; 541 state->saturation = 50; 542 state->hue = 0; 543 state->audio = audio; 544 545 /* initialize the audio */ 546 if (write_regs(audio, aud_regs) < 0) { 547 dev_err(&client->dev, "error initializing audio\n"); 548 goto fail; 549 } 550 551 if (write_regs(client, vid_regs) < 0) { 552 dev_err(&client->dev, "error initializing decoder\n"); 553 goto fail; 554 } 555 if (write_regs_fp(client, vid_regs_fp) < 0) { 556 dev_err(&client->dev, "error initializing decoder\n"); 557 goto fail; 558 } 559 /* set default channel */ 560 /* composite */ 561 write_reg_fp(client, 0x20, 0x020 | 1); 562 write_reg_fp(client, 0x21, 0x662); 563 write_reg_fp(client, 0x140, 0x060); 564 565 /* set default audio input */ 566 state->audio_input = 0; 567 write_reg(client, 0x08, 0x02); /* Line In */ 568 569 if (mutex_lock_interruptible(&usb->i2c_lock) == 0) { 570 data = kzalloc(16, GFP_KERNEL); 571 if (data != NULL) { 572 int rc = go7007_usb_vendor_request(go, 0x41, 0, 0, 573 data, 16, 1); 574 575 if (rc > 0) { 576 u8 mask; 577 578 data[0] = 0; 579 mask = 1<<5; 580 data[0] &= ~mask; 581 data[1] |= mask; 582 go7007_usb_vendor_request(go, 0x40, 0, 583 (data[1]<<8) 584 + data[1], 585 data, 16, 0); 586 } 587 kfree(data); 588 } 589 mutex_unlock(&usb->i2c_lock); 590 } 591 592 v4l2_info(sd, "initialized successfully\n"); 593 return 0; 594 595 fail: 596 i2c_unregister_device(audio); 597 v4l2_ctrl_handler_free(&state->hdl); 598 kfree(state); 599 return -EIO; 600 } 601 602 static int s2250_remove(struct i2c_client *client) 603 { 604 struct s2250 *state = to_state(i2c_get_clientdata(client)); 605 606 v4l2_device_unregister_subdev(&state->sd); 607 v4l2_ctrl_handler_free(&state->hdl); 608 kfree(state); 609 return 0; 610 } 611 612 static const struct i2c_device_id s2250_id[] = { 613 { "s2250", 0 }, 614 { } 615 }; 616 MODULE_DEVICE_TABLE(i2c, s2250_id); 617 618 static struct i2c_driver s2250_driver = { 619 .driver = { 620 .owner = THIS_MODULE, 621 .name = "s2250", 622 }, 623 .probe = s2250_probe, 624 .remove = s2250_remove, 625 .id_table = s2250_id, 626 }; 627 628 module_i2c_driver(s2250_driver); 629