1 /* DVB USB compliant linux driver for GL861 USB2.0 devices. 2 * 3 * This program is free software; you can redistribute it and/or modify it 4 * under the terms of the GNU General Public License as published by the 5 * Free Software Foundation, version 2. 6 * 7 * see Documentation/media/dvb-drivers/dvb-usb.rst for more information 8 */ 9 #include <linux/string.h> 10 11 #include "gl861.h" 12 13 #include "zl10353.h" 14 #include "qt1010.h" 15 #include "tc90522.h" 16 #include "dvb-pll.h" 17 18 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); 19 20 static int gl861_i2c_msg(struct dvb_usb_device *d, u8 addr, 21 u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen) 22 { 23 u16 index; 24 u16 value = addr << (8 + 1); 25 int wo = (rbuf == NULL || rlen == 0); /* write-only */ 26 u8 req, type; 27 u8 *buf; 28 int ret; 29 30 if (wo) { 31 req = GL861_REQ_I2C_WRITE; 32 type = GL861_WRITE; 33 buf = kmemdup(wbuf, wlen, GFP_KERNEL); 34 } else { /* rw */ 35 req = GL861_REQ_I2C_READ; 36 type = GL861_READ; 37 buf = kmalloc(rlen, GFP_KERNEL); 38 } 39 if (!buf) 40 return -ENOMEM; 41 42 switch (wlen) { 43 case 1: 44 index = wbuf[0]; 45 break; 46 case 2: 47 index = wbuf[0]; 48 value = value + wbuf[1]; 49 break; 50 default: 51 dev_err(&d->udev->dev, "%s: wlen=%d, aborting\n", 52 KBUILD_MODNAME, wlen); 53 kfree(buf); 54 return -EINVAL; 55 } 56 57 usleep_range(1000, 2000); /* avoid I2C errors */ 58 59 ret = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), req, type, 60 value, index, buf, rlen, 2000); 61 62 if (!wo && ret > 0) 63 memcpy(rbuf, buf, rlen); 64 65 kfree(buf); 66 return ret; 67 } 68 69 /* I2C */ 70 static int gl861_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], 71 int num) 72 { 73 struct dvb_usb_device *d = i2c_get_adapdata(adap); 74 int i; 75 76 if (num > 2) 77 return -EINVAL; 78 79 if (mutex_lock_interruptible(&d->i2c_mutex) < 0) 80 return -EAGAIN; 81 82 for (i = 0; i < num; i++) { 83 /* write/read request */ 84 if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) { 85 if (gl861_i2c_msg(d, msg[i].addr, msg[i].buf, 86 msg[i].len, msg[i+1].buf, msg[i+1].len) < 0) 87 break; 88 i++; 89 } else 90 if (gl861_i2c_msg(d, msg[i].addr, msg[i].buf, 91 msg[i].len, NULL, 0) < 0) 92 break; 93 } 94 95 mutex_unlock(&d->i2c_mutex); 96 return i; 97 } 98 99 static u32 gl861_i2c_func(struct i2c_adapter *adapter) 100 { 101 return I2C_FUNC_I2C; 102 } 103 104 static struct i2c_algorithm gl861_i2c_algo = { 105 .master_xfer = gl861_i2c_xfer, 106 .functionality = gl861_i2c_func, 107 }; 108 109 /* Callbacks for DVB USB */ 110 static struct zl10353_config gl861_zl10353_config = { 111 .demod_address = 0x0f, 112 .no_tuner = 1, 113 .parallel_ts = 1, 114 }; 115 116 static int gl861_frontend_attach(struct dvb_usb_adapter *adap) 117 { 118 119 adap->fe[0] = dvb_attach(zl10353_attach, &gl861_zl10353_config, 120 &adap_to_d(adap)->i2c_adap); 121 if (adap->fe[0] == NULL) 122 return -EIO; 123 124 return 0; 125 } 126 127 static struct qt1010_config gl861_qt1010_config = { 128 .i2c_address = 0x62 129 }; 130 131 static int gl861_tuner_attach(struct dvb_usb_adapter *adap) 132 { 133 return dvb_attach(qt1010_attach, 134 adap->fe[0], &adap_to_d(adap)->i2c_adap, 135 &gl861_qt1010_config) == NULL ? -ENODEV : 0; 136 } 137 138 static int gl861_init(struct dvb_usb_device *d) 139 { 140 /* 141 * There is 2 interfaces. Interface 0 is for TV and interface 1 is 142 * for HID remote controller. Interface 0 has 2 alternate settings. 143 * For some reason we need to set interface explicitly, defaulted 144 * as alternate setting 1? 145 */ 146 return usb_set_interface(d->udev, 0, 0); 147 } 148 149 /* DVB USB Driver stuff */ 150 static struct dvb_usb_device_properties gl861_props = { 151 .driver_name = KBUILD_MODNAME, 152 .owner = THIS_MODULE, 153 .adapter_nr = adapter_nr, 154 155 .i2c_algo = &gl861_i2c_algo, 156 .frontend_attach = gl861_frontend_attach, 157 .tuner_attach = gl861_tuner_attach, 158 .init = gl861_init, 159 160 .num_adapters = 1, 161 .adapter = { 162 { 163 .stream = DVB_USB_STREAM_BULK(0x81, 7, 512), 164 } 165 } 166 }; 167 168 169 /* 170 * For Friio 171 */ 172 173 struct friio_priv { 174 struct i2c_adapter *demod_sub_i2c; 175 struct i2c_client *i2c_client_demod; 176 struct i2c_client *i2c_client_tuner; 177 struct i2c_adapter tuner_adap; 178 }; 179 180 struct friio_config { 181 struct i2c_board_info demod_info; 182 struct tc90522_config demod_cfg; 183 184 struct i2c_board_info tuner_info; 185 struct dvb_pll_config tuner_cfg; 186 }; 187 188 static const struct friio_config friio_config = { 189 .demod_info = { I2C_BOARD_INFO(TC90522_I2C_DEV_TER, 0x18), }, 190 .tuner_info = { I2C_BOARD_INFO("tua6034_friio", 0x60), }, 191 }; 192 193 /* For another type of I2C: 194 * message sent by a USB control-read/write transaction with data stage. 195 * Used in init/config of Friio. 196 */ 197 static int 198 gl861_i2c_write_ex(struct dvb_usb_device *d, u8 addr, u8 *wbuf, u16 wlen) 199 { 200 u8 *buf; 201 int ret; 202 203 buf = kmalloc(wlen, GFP_KERNEL); 204 if (!buf) 205 return -ENOMEM; 206 207 memcpy(buf, wbuf, wlen); 208 ret = usb_control_msg(d->udev, usb_sndctrlpipe(d->udev, 0), 209 GL861_REQ_I2C_RAW, GL861_WRITE, 210 addr << (8 + 1), 0x0100, buf, wlen, 2000); 211 kfree(buf); 212 return ret; 213 } 214 215 static int 216 gl861_i2c_read_ex(struct dvb_usb_device *d, u8 addr, u8 *rbuf, u16 rlen) 217 { 218 u8 *buf; 219 int ret; 220 221 buf = kmalloc(rlen, GFP_KERNEL); 222 if (!buf) 223 return -ENOMEM; 224 225 ret = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), 226 GL861_REQ_I2C_READ, GL861_READ, 227 addr << (8 + 1), 0x0100, buf, rlen, 2000); 228 if (ret > 0 && rlen > 0) 229 memcpy(buf, rbuf, rlen); 230 kfree(buf); 231 return ret; 232 } 233 234 /* For I2C transactions to the tuner of Friio (dvb_pll). 235 * 236 * Friio uses irregular USB encapsulation for tuner i2c transactions: 237 * write transacions are encapsulated with a different USB 'request' value. 238 * 239 * Although all transactions are sent via the demod(tc90522) 240 * and the demod provides an i2c adapter for them, it cannot be used in Friio 241 * since it assumes using the same parent adapter with the demod, 242 * which does not use the request value and uses same one for both read/write. 243 * So we define a dedicated i2c adapter here. 244 */ 245 246 static int 247 friio_i2c_tuner_read(struct dvb_usb_device *d, struct i2c_msg *msg) 248 { 249 struct friio_priv *priv; 250 u8 addr; 251 252 priv = d_to_priv(d); 253 addr = priv->i2c_client_demod->addr; 254 return gl861_i2c_read_ex(d, addr, msg->buf, msg->len); 255 } 256 257 static int 258 friio_i2c_tuner_write(struct dvb_usb_device *d, struct i2c_msg *msg) 259 { 260 u8 *buf; 261 int ret; 262 struct friio_priv *priv; 263 264 priv = d_to_priv(d); 265 266 if (msg->len < 1) 267 return -EINVAL; 268 269 buf = kmalloc(msg->len + 1, GFP_KERNEL); 270 if (!buf) 271 return -ENOMEM; 272 buf[0] = msg->addr << 1; 273 memcpy(buf + 1, msg->buf, msg->len); 274 275 ret = usb_control_msg(d->udev, usb_sndctrlpipe(d->udev, 0), 276 GL861_REQ_I2C_RAW, GL861_WRITE, 277 priv->i2c_client_demod->addr << (8 + 1), 278 0xFE, buf, msg->len + 1, 2000); 279 kfree(buf); 280 return ret; 281 } 282 283 static int friio_tuner_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], 284 int num) 285 { 286 struct dvb_usb_device *d = i2c_get_adapdata(adap); 287 int i; 288 289 if (num > 2) 290 return -EINVAL; 291 292 if (mutex_lock_interruptible(&d->i2c_mutex) < 0) 293 return -EAGAIN; 294 295 for (i = 0; i < num; i++) { 296 int ret; 297 298 if (msg[i].flags & I2C_M_RD) 299 ret = friio_i2c_tuner_read(d, &msg[i]); 300 else 301 ret = friio_i2c_tuner_write(d, &msg[i]); 302 303 if (ret < 0) 304 break; 305 306 usleep_range(1000, 2000); /* avoid I2C errors */ 307 } 308 309 mutex_unlock(&d->i2c_mutex); 310 return i; 311 } 312 313 static struct i2c_algorithm friio_tuner_i2c_algo = { 314 .master_xfer = friio_tuner_i2c_xfer, 315 .functionality = gl861_i2c_func, 316 }; 317 318 /* GPIO control in Friio */ 319 320 #define FRIIO_CTL_LNB (1 << 0) 321 #define FRIIO_CTL_STROBE (1 << 1) 322 #define FRIIO_CTL_CLK (1 << 2) 323 #define FRIIO_CTL_LED (1 << 3) 324 325 #define FRIIO_LED_RUNNING 0x6400ff64 326 #define FRIIO_LED_STOPPED 0x96ff00ff 327 328 /* control PIC16F676 attached to Friio */ 329 static int friio_ext_ctl(struct dvb_usb_device *d, 330 u32 sat_color, int power_on) 331 { 332 int i, ret; 333 struct i2c_msg msg; 334 u8 *buf; 335 u32 mask; 336 u8 power = (power_on) ? FRIIO_CTL_LNB : 0; 337 338 buf = kmalloc(2, GFP_KERNEL); 339 if (!buf) 340 return -ENOMEM; 341 342 msg.addr = 0x00; 343 msg.flags = 0; 344 msg.len = 2; 345 msg.buf = buf; 346 buf[0] = 0x00; 347 348 /* send 2bit header (&B10) */ 349 buf[1] = power | FRIIO_CTL_LED | FRIIO_CTL_STROBE; 350 ret = i2c_transfer(&d->i2c_adap, &msg, 1); 351 buf[1] |= FRIIO_CTL_CLK; 352 ret += i2c_transfer(&d->i2c_adap, &msg, 1); 353 354 buf[1] = power | FRIIO_CTL_STROBE; 355 ret += i2c_transfer(&d->i2c_adap, &msg, 1); 356 buf[1] |= FRIIO_CTL_CLK; 357 ret += i2c_transfer(&d->i2c_adap, &msg, 1); 358 359 /* send 32bit(satur, R, G, B) data in serial */ 360 mask = 1 << 31; 361 for (i = 0; i < 32; i++) { 362 buf[1] = power | FRIIO_CTL_STROBE; 363 if (sat_color & mask) 364 buf[1] |= FRIIO_CTL_LED; 365 ret += i2c_transfer(&d->i2c_adap, &msg, 1); 366 buf[1] |= FRIIO_CTL_CLK; 367 ret += i2c_transfer(&d->i2c_adap, &msg, 1); 368 mask >>= 1; 369 } 370 371 /* set the strobe off */ 372 buf[1] = power; 373 ret += i2c_transfer(&d->i2c_adap, &msg, 1); 374 buf[1] |= FRIIO_CTL_CLK; 375 ret += i2c_transfer(&d->i2c_adap, &msg, 1); 376 377 kfree(buf); 378 return (ret == 70) ? 0 : -EREMOTEIO; 379 } 380 381 /* init/config of gl861 for Friio */ 382 /* NOTE: 383 * This function cannot be moved to friio_init()/dvb_usbv2_init(), 384 * because the init defined here must be done before any activities like I2C, 385 * but friio_init() is called by dvb-usbv2 after {_frontend, _tuner}_attach(), 386 * where I2C communication is used. 387 * Thus this function is set to be called from _power_ctl(). 388 * 389 * Since it will be called on the early init stage 390 * where the i2c adapter is not initialized yet, 391 * we cannot use i2c_transfer() here. 392 */ 393 static int friio_reset(struct dvb_usb_device *d) 394 { 395 int i, ret; 396 u8 wbuf[2], rbuf[2]; 397 398 static const u8 friio_init_cmds[][2] = { 399 {0x33, 0x08}, {0x37, 0x40}, {0x3a, 0x1f}, {0x3b, 0xff}, 400 {0x3c, 0x1f}, {0x3d, 0xff}, {0x38, 0x00}, {0x35, 0x00}, 401 {0x39, 0x00}, {0x36, 0x00}, 402 }; 403 404 ret = usb_set_interface(d->udev, 0, 0); 405 if (ret < 0) 406 return ret; 407 408 wbuf[0] = 0x11; 409 wbuf[1] = 0x02; 410 ret = gl861_i2c_msg(d, 0x00, wbuf, 2, NULL, 0); 411 if (ret < 0) 412 return ret; 413 usleep_range(2000, 3000); 414 415 wbuf[0] = 0x11; 416 wbuf[1] = 0x00; 417 ret = gl861_i2c_msg(d, 0x00, wbuf, 2, NULL, 0); 418 if (ret < 0) 419 return ret; 420 421 /* 422 * Check if the dev is really a Friio White, since it might be 423 * another device, Friio Black, with the same VID/PID. 424 */ 425 426 usleep_range(1000, 2000); 427 wbuf[0] = 0x03; 428 wbuf[1] = 0x80; 429 ret = gl861_i2c_write_ex(d, 0x09, wbuf, 2); 430 if (ret < 0) 431 return ret; 432 433 usleep_range(2000, 3000); 434 ret = gl861_i2c_read_ex(d, 0x09, rbuf, 2); 435 if (ret < 0) 436 return ret; 437 if (rbuf[0] != 0xff || rbuf[1] != 0xff) 438 return -ENODEV; 439 440 441 usleep_range(1000, 2000); 442 ret = gl861_i2c_write_ex(d, 0x48, wbuf, 2); 443 if (ret < 0) 444 return ret; 445 446 usleep_range(2000, 3000); 447 ret = gl861_i2c_read_ex(d, 0x48, rbuf, 2); 448 if (ret < 0) 449 return ret; 450 if (rbuf[0] != 0xff || rbuf[1] != 0xff) 451 return -ENODEV; 452 453 wbuf[0] = 0x30; 454 wbuf[1] = 0x04; 455 ret = gl861_i2c_msg(d, 0x00, wbuf, 2, NULL, 0); 456 if (ret < 0) 457 return ret; 458 459 wbuf[0] = 0x00; 460 wbuf[1] = 0x01; 461 ret = gl861_i2c_msg(d, 0x00, wbuf, 2, NULL, 0); 462 if (ret < 0) 463 return ret; 464 465 wbuf[0] = 0x06; 466 wbuf[1] = 0x0f; 467 ret = gl861_i2c_msg(d, 0x00, wbuf, 2, NULL, 0); 468 if (ret < 0) 469 return ret; 470 471 for (i = 0; i < ARRAY_SIZE(friio_init_cmds); i++) { 472 ret = gl861_i2c_msg(d, 0x00, (u8 *)friio_init_cmds[i], 2, 473 NULL, 0); 474 if (ret < 0) 475 return ret; 476 } 477 return 0; 478 } 479 480 /* 481 * DVB callbacks for Friio 482 */ 483 484 static int friio_power_ctrl(struct dvb_usb_device *d, int onoff) 485 { 486 return onoff ? friio_reset(d) : 0; 487 } 488 489 static int friio_frontend_attach(struct dvb_usb_adapter *adap) 490 { 491 const struct i2c_board_info *info; 492 struct dvb_usb_device *d; 493 struct tc90522_config cfg; 494 struct i2c_client *cl; 495 struct friio_priv *priv; 496 497 info = &friio_config.demod_info; 498 d = adap_to_d(adap); 499 cl = dvb_module_probe("tc90522", info->type, 500 &d->i2c_adap, info->addr, &cfg); 501 if (!cl) 502 return -ENODEV; 503 adap->fe[0] = cfg.fe; 504 505 /* ignore cfg.tuner_i2c and create new one */ 506 priv = adap_to_priv(adap); 507 priv->i2c_client_demod = cl; 508 priv->tuner_adap.algo = &friio_tuner_i2c_algo; 509 priv->tuner_adap.dev.parent = &d->udev->dev; 510 strscpy(priv->tuner_adap.name, d->name, sizeof(priv->tuner_adap.name)); 511 strlcat(priv->tuner_adap.name, "-tuner", sizeof(priv->tuner_adap.name)); 512 priv->demod_sub_i2c = &priv->tuner_adap; 513 i2c_set_adapdata(&priv->tuner_adap, d); 514 515 return i2c_add_adapter(&priv->tuner_adap); 516 } 517 518 static int friio_frontend_detach(struct dvb_usb_adapter *adap) 519 { 520 struct friio_priv *priv; 521 522 priv = adap_to_priv(adap); 523 i2c_del_adapter(&priv->tuner_adap); 524 dvb_module_release(priv->i2c_client_demod); 525 return 0; 526 } 527 528 static int friio_tuner_attach(struct dvb_usb_adapter *adap) 529 { 530 const struct i2c_board_info *info; 531 struct dvb_pll_config cfg; 532 struct i2c_client *cl; 533 struct friio_priv *priv; 534 535 priv = adap_to_priv(adap); 536 info = &friio_config.tuner_info; 537 cfg = friio_config.tuner_cfg; 538 cfg.fe = adap->fe[0]; 539 540 cl = dvb_module_probe("dvb_pll", info->type, 541 priv->demod_sub_i2c, info->addr, &cfg); 542 if (!cl) 543 return -ENODEV; 544 priv->i2c_client_tuner = cl; 545 return 0; 546 } 547 548 static int friio_tuner_detach(struct dvb_usb_adapter *adap) 549 { 550 struct friio_priv *priv; 551 552 priv = adap_to_priv(adap); 553 dvb_module_release(priv->i2c_client_tuner); 554 return 0; 555 } 556 557 static int friio_init(struct dvb_usb_device *d) 558 { 559 int i; 560 int ret; 561 struct friio_priv *priv; 562 563 static const u8 demod_init[][2] = { 564 {0x01, 0x40}, {0x04, 0x38}, {0x05, 0x40}, {0x07, 0x40}, 565 {0x0f, 0x4f}, {0x11, 0x21}, {0x12, 0x0b}, {0x13, 0x2f}, 566 {0x14, 0x31}, {0x16, 0x02}, {0x21, 0xc4}, {0x22, 0x20}, 567 {0x2c, 0x79}, {0x2d, 0x34}, {0x2f, 0x00}, {0x30, 0x28}, 568 {0x31, 0x31}, {0x32, 0xdf}, {0x38, 0x01}, {0x39, 0x78}, 569 {0x3b, 0x33}, {0x3c, 0x33}, {0x48, 0x90}, {0x51, 0x68}, 570 {0x5e, 0x38}, {0x71, 0x00}, {0x72, 0x08}, {0x77, 0x00}, 571 {0xc0, 0x21}, {0xc1, 0x10}, {0xe4, 0x1a}, {0xea, 0x1f}, 572 {0x77, 0x00}, {0x71, 0x00}, {0x71, 0x00}, {0x76, 0x0c}, 573 }; 574 575 /* power on LNA? */ 576 ret = friio_ext_ctl(d, FRIIO_LED_STOPPED, true); 577 if (ret < 0) 578 return ret; 579 msleep(20); 580 581 /* init/config demod */ 582 priv = d_to_priv(d); 583 for (i = 0; i < ARRAY_SIZE(demod_init); i++) { 584 int ret; 585 586 ret = i2c_master_send(priv->i2c_client_demod, demod_init[i], 2); 587 if (ret < 0) 588 return ret; 589 } 590 msleep(100); 591 return 0; 592 } 593 594 static void friio_exit(struct dvb_usb_device *d) 595 { 596 friio_ext_ctl(d, FRIIO_LED_STOPPED, false); 597 } 598 599 static int friio_streaming_ctrl(struct dvb_frontend *fe, int onoff) 600 { 601 u32 led_color; 602 603 led_color = onoff ? FRIIO_LED_RUNNING : FRIIO_LED_STOPPED; 604 return friio_ext_ctl(fe_to_d(fe), led_color, true); 605 } 606 607 608 static struct dvb_usb_device_properties friio_props = { 609 .driver_name = KBUILD_MODNAME, 610 .owner = THIS_MODULE, 611 .adapter_nr = adapter_nr, 612 613 .size_of_priv = sizeof(struct friio_priv), 614 615 .i2c_algo = &gl861_i2c_algo, 616 .power_ctrl = friio_power_ctrl, 617 .frontend_attach = friio_frontend_attach, 618 .frontend_detach = friio_frontend_detach, 619 .tuner_attach = friio_tuner_attach, 620 .tuner_detach = friio_tuner_detach, 621 .init = friio_init, 622 .exit = friio_exit, 623 .streaming_ctrl = friio_streaming_ctrl, 624 625 .num_adapters = 1, 626 .adapter = { 627 { 628 .stream = DVB_USB_STREAM_BULK(0x01, 8, 16384), 629 } 630 } 631 }; 632 633 static const struct usb_device_id gl861_id_table[] = { 634 { DVB_USB_DEVICE(USB_VID_MSI, USB_PID_MSI_MEGASKY580_55801, 635 &gl861_props, "MSI Mega Sky 55801 DVB-T USB2.0", NULL) }, 636 { DVB_USB_DEVICE(USB_VID_ALINK, USB_VID_ALINK_DTU, 637 &gl861_props, "A-LINK DTU DVB-T USB2.0", NULL) }, 638 { DVB_USB_DEVICE(USB_VID_774, USB_PID_FRIIO_WHITE, 639 &friio_props, "774 Friio White ISDB-T USB2.0", NULL) }, 640 { } 641 }; 642 MODULE_DEVICE_TABLE(usb, gl861_id_table); 643 644 static struct usb_driver gl861_usb_driver = { 645 .name = KBUILD_MODNAME, 646 .id_table = gl861_id_table, 647 .probe = dvb_usbv2_probe, 648 .disconnect = dvb_usbv2_disconnect, 649 .suspend = dvb_usbv2_suspend, 650 .resume = dvb_usbv2_resume, 651 .reset_resume = dvb_usbv2_reset_resume, 652 .no_dynamic_id = 1, 653 .soft_unbind = 1, 654 }; 655 656 module_usb_driver(gl861_usb_driver); 657 658 MODULE_AUTHOR("Carl Lundqvist <comabug@gmail.com>"); 659 MODULE_DESCRIPTION("Driver MSI Mega Sky 580 DVB-T USB2.0 / GL861"); 660 MODULE_VERSION("0.1"); 661 MODULE_LICENSE("GPL"); 662