1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright (C) 2008 Sensoray Company Inc. 4 */ 5 6 #include <linux/module.h> 7 #include <linux/usb.h> 8 #include <linux/i2c.h> 9 #include <linux/videodev2.h> 10 #include <linux/slab.h> 11 #include <media/v4l2-device.h> 12 #include <media/v4l2-common.h> 13 #include <media/v4l2-subdev.h> 14 #include "go7007-priv.h" 15 16 MODULE_DESCRIPTION("Sensoray 2250/2251 i2c v4l2 subdev driver"); 17 MODULE_LICENSE("GPL v2"); 18 19 /* 20 * Note: this board has two i2c devices: a vpx3226f and a tlv320aic23b. 21 * Due to the unusual way these are accessed on this device we do not 22 * reuse the i2c drivers, but instead they are implemented in this 23 * driver. It would be nice to improve on this, though. 24 */ 25 26 #define TLV320_ADDRESS 0x34 27 #define VPX322_ADDR_ANALOGCONTROL1 0x02 28 #define VPX322_ADDR_BRIGHTNESS0 0x0127 29 #define VPX322_ADDR_BRIGHTNESS1 0x0131 30 #define VPX322_ADDR_CONTRAST0 0x0128 31 #define VPX322_ADDR_CONTRAST1 0x0132 32 #define VPX322_ADDR_HUE 0x00dc 33 #define VPX322_ADDR_SAT 0x0030 34 35 struct go7007_usb_board { 36 unsigned int flags; 37 struct go7007_board_info main_info; 38 }; 39 40 struct go7007_usb { 41 struct go7007_usb_board *board; 42 struct mutex i2c_lock; 43 struct usb_device *usbdev; 44 struct urb *video_urbs[8]; 45 struct urb *audio_urbs[8]; 46 struct urb *intr_urb; 47 }; 48 49 static unsigned char aud_regs[] = { 50 0x1e, 0x00, 51 0x00, 0x17, 52 0x02, 0x17, 53 0x04, 0xf9, 54 0x06, 0xf9, 55 0x08, 0x02, 56 0x0a, 0x00, 57 0x0c, 0x00, 58 0x0a, 0x00, 59 0x0c, 0x00, 60 0x0e, 0x02, 61 0x10, 0x00, 62 0x12, 0x01, 63 0x00, 0x00, 64 }; 65 66 67 static unsigned char vid_regs[] = { 68 0xF2, 0x0f, 69 0xAA, 0x00, 70 0xF8, 0xff, 71 0x00, 0x00, 72 }; 73 74 static u16 vid_regs_fp[] = { 75 0x028, 0x067, 76 0x120, 0x016, 77 0x121, 0xcF2, 78 0x122, 0x0F2, 79 0x123, 0x00c, 80 0x124, 0x2d0, 81 0x125, 0x2e0, 82 0x126, 0x004, 83 0x128, 0x1E0, 84 0x12A, 0x016, 85 0x12B, 0x0F2, 86 0x12C, 0x0F2, 87 0x12D, 0x00c, 88 0x12E, 0x2d0, 89 0x12F, 0x2e0, 90 0x130, 0x004, 91 0x132, 0x1E0, 92 0x140, 0x060, 93 0x153, 0x00C, 94 0x154, 0x200, 95 0x150, 0x801, 96 0x000, 0x000 97 }; 98 99 /* PAL specific values */ 100 static u16 vid_regs_fp_pal[] = { 101 0x120, 0x017, 102 0x121, 0xd22, 103 0x122, 0x122, 104 0x12A, 0x017, 105 0x12B, 0x122, 106 0x12C, 0x122, 107 0x140, 0x060, 108 0x000, 0x000, 109 }; 110 111 struct s2250 { 112 struct v4l2_subdev sd; 113 struct v4l2_ctrl_handler hdl; 114 v4l2_std_id std; 115 int input; 116 int brightness; 117 int contrast; 118 int saturation; 119 int hue; 120 int reg12b_val; 121 int audio_input; 122 struct i2c_client *audio; 123 }; 124 125 static inline struct s2250 *to_state(struct v4l2_subdev *sd) 126 { 127 return container_of(sd, struct s2250, sd); 128 } 129 130 /* from go7007-usb.c which is Copyright (C) 2005-2006 Micronas USA Inc.*/ 131 static int go7007_usb_vendor_request(struct go7007 *go, u16 request, 132 u16 value, u16 index, void *transfer_buffer, int length, int in) 133 { 134 struct go7007_usb *usb = go->hpi_context; 135 int timeout = 5000; 136 137 if (in) { 138 return usb_control_msg(usb->usbdev, 139 usb_rcvctrlpipe(usb->usbdev, 0), request, 140 USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, 141 value, index, transfer_buffer, length, timeout); 142 } else { 143 return usb_control_msg(usb->usbdev, 144 usb_sndctrlpipe(usb->usbdev, 0), request, 145 USB_TYPE_VENDOR | USB_RECIP_DEVICE, 146 value, index, transfer_buffer, length, timeout); 147 } 148 } 149 /* end from go7007-usb.c which is Copyright (C) 2005-2006 Micronas USA Inc.*/ 150 151 static int write_reg(struct i2c_client *client, u8 reg, u8 value) 152 { 153 struct go7007 *go = i2c_get_adapdata(client->adapter); 154 struct go7007_usb *usb; 155 int rc; 156 int dev_addr = client->addr << 1; /* firmware wants 8-bit address */ 157 u8 *buf; 158 159 if (go == NULL) 160 return -ENODEV; 161 162 if (go->status == STATUS_SHUTDOWN) 163 return -EBUSY; 164 165 buf = kzalloc(16, GFP_KERNEL); 166 if (buf == NULL) 167 return -ENOMEM; 168 169 usb = go->hpi_context; 170 if (mutex_lock_interruptible(&usb->i2c_lock) != 0) { 171 dev_info(&client->dev, "i2c lock failed\n"); 172 kfree(buf); 173 return -EINTR; 174 } 175 rc = go7007_usb_vendor_request(go, 0x55, dev_addr, 176 (reg<<8 | value), 177 buf, 178 16, 1); 179 180 mutex_unlock(&usb->i2c_lock); 181 kfree(buf); 182 return rc; 183 } 184 185 static int write_reg_fp(struct i2c_client *client, u16 addr, u16 val) 186 { 187 struct go7007 *go = i2c_get_adapdata(client->adapter); 188 struct go7007_usb *usb; 189 int rc; 190 u8 *buf; 191 struct s2250 *dec = i2c_get_clientdata(client); 192 193 if (go == NULL) 194 return -ENODEV; 195 196 if (go->status == STATUS_SHUTDOWN) 197 return -EBUSY; 198 199 buf = kzalloc(16, GFP_KERNEL); 200 201 if (buf == NULL) 202 return -ENOMEM; 203 204 205 206 memset(buf, 0xcd, 6); 207 208 usb = go->hpi_context; 209 if (mutex_lock_interruptible(&usb->i2c_lock) != 0) { 210 dev_info(&client->dev, "i2c lock failed\n"); 211 kfree(buf); 212 return -EINTR; 213 } 214 rc = go7007_usb_vendor_request(go, 0x57, addr, val, buf, 16, 1); 215 mutex_unlock(&usb->i2c_lock); 216 if (rc < 0) { 217 kfree(buf); 218 return rc; 219 } 220 221 if (buf[0] == 0) { 222 unsigned int subaddr, val_read; 223 224 subaddr = (buf[4] << 8) + buf[5]; 225 val_read = (buf[2] << 8) + buf[3]; 226 kfree(buf); 227 if (val_read != val) { 228 dev_info(&client->dev, "invalid fp write %x %x\n", 229 val_read, val); 230 return -EFAULT; 231 } 232 if (subaddr != addr) { 233 dev_info(&client->dev, "invalid fp write addr %x %x\n", 234 subaddr, addr); 235 return -EFAULT; 236 } 237 } else { 238 kfree(buf); 239 return -EFAULT; 240 } 241 242 /* save last 12b value */ 243 if (addr == 0x12b) 244 dec->reg12b_val = val; 245 246 return 0; 247 } 248 249 static int read_reg_fp(struct i2c_client *client, u16 addr, u16 *val) 250 { 251 struct go7007 *go = i2c_get_adapdata(client->adapter); 252 struct go7007_usb *usb; 253 int rc; 254 u8 *buf; 255 256 if (go == NULL) 257 return -ENODEV; 258 259 if (go->status == STATUS_SHUTDOWN) 260 return -EBUSY; 261 262 buf = kzalloc(16, GFP_KERNEL); 263 264 if (buf == NULL) 265 return -ENOMEM; 266 267 268 269 memset(buf, 0xcd, 6); 270 usb = go->hpi_context; 271 if (mutex_lock_interruptible(&usb->i2c_lock) != 0) { 272 dev_info(&client->dev, "i2c lock failed\n"); 273 kfree(buf); 274 return -EINTR; 275 } 276 rc = go7007_usb_vendor_request(go, 0x58, addr, 0, buf, 16, 1); 277 mutex_unlock(&usb->i2c_lock); 278 if (rc < 0) { 279 kfree(buf); 280 return rc; 281 } 282 283 *val = (buf[0] << 8) | buf[1]; 284 kfree(buf); 285 286 return 0; 287 } 288 289 290 static int write_regs(struct i2c_client *client, u8 *regs) 291 { 292 int i; 293 294 for (i = 0; !((regs[i] == 0x00) && (regs[i+1] == 0x00)); i += 2) { 295 if (write_reg(client, regs[i], regs[i+1]) < 0) { 296 dev_info(&client->dev, "failed\n"); 297 return -1; 298 } 299 } 300 return 0; 301 } 302 303 static int write_regs_fp(struct i2c_client *client, u16 *regs) 304 { 305 int i; 306 307 for (i = 0; !((regs[i] == 0x00) && (regs[i+1] == 0x00)); i += 2) { 308 if (write_reg_fp(client, regs[i], regs[i+1]) < 0) { 309 dev_info(&client->dev, "failed fp\n"); 310 return -1; 311 } 312 } 313 return 0; 314 } 315 316 317 /* ------------------------------------------------------------------------- */ 318 319 static int s2250_s_video_routing(struct v4l2_subdev *sd, u32 input, u32 output, 320 u32 config) 321 { 322 struct s2250 *state = to_state(sd); 323 struct i2c_client *client = v4l2_get_subdevdata(sd); 324 int vidsys; 325 326 vidsys = (state->std == V4L2_STD_NTSC) ? 0x01 : 0x00; 327 if (input == 0) { 328 /* composite */ 329 write_reg_fp(client, 0x20, 0x020 | vidsys); 330 write_reg_fp(client, 0x21, 0x662); 331 write_reg_fp(client, 0x140, 0x060); 332 } else if (input == 1) { 333 /* S-Video */ 334 write_reg_fp(client, 0x20, 0x040 | vidsys); 335 write_reg_fp(client, 0x21, 0x666); 336 write_reg_fp(client, 0x140, 0x060); 337 } else { 338 return -EINVAL; 339 } 340 state->input = input; 341 return 0; 342 } 343 344 static int s2250_s_std(struct v4l2_subdev *sd, v4l2_std_id norm) 345 { 346 struct s2250 *state = to_state(sd); 347 struct i2c_client *client = v4l2_get_subdevdata(sd); 348 u16 vidsource; 349 350 vidsource = (state->input == 1) ? 0x040 : 0x020; 351 if (norm & V4L2_STD_625_50) { 352 write_regs_fp(client, vid_regs_fp); 353 write_regs_fp(client, vid_regs_fp_pal); 354 write_reg_fp(client, 0x20, vidsource); 355 } else { 356 write_regs_fp(client, vid_regs_fp); 357 write_reg_fp(client, 0x20, vidsource | 1); 358 } 359 state->std = norm; 360 return 0; 361 } 362 363 static int s2250_s_ctrl(struct v4l2_ctrl *ctrl) 364 { 365 struct s2250 *state = container_of(ctrl->handler, struct s2250, hdl); 366 struct i2c_client *client = v4l2_get_subdevdata(&state->sd); 367 u16 oldvalue; 368 369 switch (ctrl->id) { 370 case V4L2_CID_BRIGHTNESS: 371 read_reg_fp(client, VPX322_ADDR_BRIGHTNESS0, &oldvalue); 372 write_reg_fp(client, VPX322_ADDR_BRIGHTNESS0, 373 ctrl->val | (oldvalue & ~0xff)); 374 read_reg_fp(client, VPX322_ADDR_BRIGHTNESS1, &oldvalue); 375 write_reg_fp(client, VPX322_ADDR_BRIGHTNESS1, 376 ctrl->val | (oldvalue & ~0xff)); 377 write_reg_fp(client, 0x140, 0x60); 378 break; 379 case V4L2_CID_CONTRAST: 380 read_reg_fp(client, VPX322_ADDR_CONTRAST0, &oldvalue); 381 write_reg_fp(client, VPX322_ADDR_CONTRAST0, 382 ctrl->val | (oldvalue & ~0x3f)); 383 read_reg_fp(client, VPX322_ADDR_CONTRAST1, &oldvalue); 384 write_reg_fp(client, VPX322_ADDR_CONTRAST1, 385 ctrl->val | (oldvalue & ~0x3f)); 386 write_reg_fp(client, 0x140, 0x60); 387 break; 388 case V4L2_CID_SATURATION: 389 write_reg_fp(client, VPX322_ADDR_SAT, ctrl->val); 390 break; 391 case V4L2_CID_HUE: 392 write_reg_fp(client, VPX322_ADDR_HUE, ctrl->val); 393 break; 394 default: 395 return -EINVAL; 396 } 397 return 0; 398 } 399 400 static int s2250_set_fmt(struct v4l2_subdev *sd, 401 struct v4l2_subdev_state *sd_state, 402 struct v4l2_subdev_format *format) 403 { 404 struct v4l2_mbus_framefmt *fmt = &format->format; 405 struct s2250 *state = to_state(sd); 406 struct i2c_client *client = v4l2_get_subdevdata(sd); 407 408 if (format->pad) 409 return -EINVAL; 410 411 if (format->which == V4L2_SUBDEV_FORMAT_TRY) 412 return 0; 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 }; 483 484 static const struct v4l2_subdev_pad_ops s2250_pad_ops = { 485 .set_fmt = s2250_set_fmt, 486 }; 487 488 static const struct v4l2_subdev_ops s2250_ops = { 489 .core = &s2250_core_ops, 490 .audio = &s2250_audio_ops, 491 .video = &s2250_video_ops, 492 .pad = &s2250_pad_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_device(adapter, TLV320_ADDRESS >> 1); 509 if (IS_ERR(audio)) 510 return PTR_ERR(audio); 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 = go7007_usb_vendor_request(go, 0x41, 0, 0, 577 data, 16, 1); 578 579 if (rc > 0) { 580 u8 mask; 581 582 data[0] = 0; 583 mask = 1<<5; 584 data[0] &= ~mask; 585 data[1] |= mask; 586 go7007_usb_vendor_request(go, 0x40, 0, 587 (data[1]<<8) 588 + data[1], 589 data, 16, 0); 590 } 591 kfree(data); 592 } 593 mutex_unlock(&usb->i2c_lock); 594 } 595 596 v4l2_info(sd, "initialized successfully\n"); 597 return 0; 598 599 fail: 600 i2c_unregister_device(audio); 601 v4l2_ctrl_handler_free(&state->hdl); 602 kfree(state); 603 return -EIO; 604 } 605 606 static int s2250_remove(struct i2c_client *client) 607 { 608 struct s2250 *state = to_state(i2c_get_clientdata(client)); 609 610 i2c_unregister_device(state->audio); 611 v4l2_device_unregister_subdev(&state->sd); 612 v4l2_ctrl_handler_free(&state->hdl); 613 kfree(state); 614 return 0; 615 } 616 617 static const struct i2c_device_id s2250_id[] = { 618 { "s2250", 0 }, 619 { } 620 }; 621 MODULE_DEVICE_TABLE(i2c, s2250_id); 622 623 static struct i2c_driver s2250_driver = { 624 .driver = { 625 .name = "s2250", 626 }, 627 .probe = s2250_probe, 628 .remove = s2250_remove, 629 .id_table = s2250_id, 630 }; 631 632 module_i2c_driver(s2250_driver); 633