1 /*
2  * Realtek RTL28xxU DVB USB driver
3  *
4  * Copyright (C) 2009 Antti Palosaari <crope@iki.fi>
5  * Copyright (C) 2011 Antti Palosaari <crope@iki.fi>
6  * Copyright (C) 2012 Thomas Mair <thomas.mair86@googlemail.com>
7  *
8  *    This program is free software; you can redistribute it and/or modify
9  *    it under the terms of the GNU General Public License as published by
10  *    the Free Software Foundation; either version 2 of the License, or
11  *    (at your option) any later version.
12  *
13  *    This program is distributed in the hope that it will be useful,
14  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
15  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  *    GNU General Public License for more details.
17  *
18  *    You should have received a copy of the GNU General Public License along
19  *    with this program; if not, write to the Free Software Foundation, Inc.,
20  *    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
21  */
22 
23 #include "rtl28xxu.h"
24 
25 static int rtl28xxu_disable_rc;
26 module_param_named(disable_rc, rtl28xxu_disable_rc, int, 0644);
27 MODULE_PARM_DESC(disable_rc, "disable RTL2832U remote controller");
28 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
29 
30 static int rtl28xxu_ctrl_msg(struct dvb_usb_device *d, struct rtl28xxu_req *req)
31 {
32 	struct rtl28xxu_dev *dev = d->priv;
33 	int ret;
34 	unsigned int pipe;
35 	u8 requesttype;
36 
37 	mutex_lock(&d->usb_mutex);
38 
39 	if (req->size > sizeof(dev->buf)) {
40 		dev_err(&d->intf->dev, "too large message %u\n", req->size);
41 		ret = -EINVAL;
42 		goto err_mutex_unlock;
43 	}
44 
45 	if (req->index & CMD_WR_FLAG) {
46 		/* write */
47 		memcpy(dev->buf, req->data, req->size);
48 		requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);
49 		pipe = usb_sndctrlpipe(d->udev, 0);
50 	} else {
51 		/* read */
52 		requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
53 		pipe = usb_rcvctrlpipe(d->udev, 0);
54 	}
55 
56 	ret = usb_control_msg(d->udev, pipe, 0, requesttype, req->value,
57 			req->index, dev->buf, req->size, 1000);
58 	dvb_usb_dbg_usb_control_msg(d->udev, 0, requesttype, req->value,
59 			req->index, dev->buf, req->size);
60 	if (ret < 0)
61 		goto err_mutex_unlock;
62 
63 	/* read request, copy returned data to return buf */
64 	if (requesttype == (USB_TYPE_VENDOR | USB_DIR_IN))
65 		memcpy(req->data, dev->buf, req->size);
66 
67 	mutex_unlock(&d->usb_mutex);
68 
69 	return 0;
70 err_mutex_unlock:
71 	mutex_unlock(&d->usb_mutex);
72 	dev_dbg(&d->intf->dev, "failed=%d\n", ret);
73 	return ret;
74 }
75 
76 static int rtl28xxu_wr_regs(struct dvb_usb_device *d, u16 reg, u8 *val, int len)
77 {
78 	struct rtl28xxu_req req;
79 
80 	if (reg < 0x3000)
81 		req.index = CMD_USB_WR;
82 	else if (reg < 0x4000)
83 		req.index = CMD_SYS_WR;
84 	else
85 		req.index = CMD_IR_WR;
86 
87 	req.value = reg;
88 	req.size = len;
89 	req.data = val;
90 
91 	return rtl28xxu_ctrl_msg(d, &req);
92 }
93 
94 static int rtl28xxu_rd_regs(struct dvb_usb_device *d, u16 reg, u8 *val, int len)
95 {
96 	struct rtl28xxu_req req;
97 
98 	if (reg < 0x3000)
99 		req.index = CMD_USB_RD;
100 	else if (reg < 0x4000)
101 		req.index = CMD_SYS_RD;
102 	else
103 		req.index = CMD_IR_RD;
104 
105 	req.value = reg;
106 	req.size = len;
107 	req.data = val;
108 
109 	return rtl28xxu_ctrl_msg(d, &req);
110 }
111 
112 static int rtl28xxu_wr_reg(struct dvb_usb_device *d, u16 reg, u8 val)
113 {
114 	return rtl28xxu_wr_regs(d, reg, &val, 1);
115 }
116 
117 static int rtl28xxu_rd_reg(struct dvb_usb_device *d, u16 reg, u8 *val)
118 {
119 	return rtl28xxu_rd_regs(d, reg, val, 1);
120 }
121 
122 static int rtl28xxu_wr_reg_mask(struct dvb_usb_device *d, u16 reg, u8 val,
123 		u8 mask)
124 {
125 	int ret;
126 	u8 tmp;
127 
128 	/* no need for read if whole reg is written */
129 	if (mask != 0xff) {
130 		ret = rtl28xxu_rd_reg(d, reg, &tmp);
131 		if (ret)
132 			return ret;
133 
134 		val &= mask;
135 		tmp &= ~mask;
136 		val |= tmp;
137 	}
138 
139 	return rtl28xxu_wr_reg(d, reg, val);
140 }
141 
142 /* I2C */
143 static int rtl28xxu_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
144 	int num)
145 {
146 	int ret;
147 	struct dvb_usb_device *d = i2c_get_adapdata(adap);
148 	struct rtl28xxu_dev *dev = d->priv;
149 	struct rtl28xxu_req req;
150 
151 	/*
152 	 * It is not known which are real I2C bus xfer limits, but testing
153 	 * with RTL2831U + MT2060 gives max RD 24 and max WR 22 bytes.
154 	 * TODO: find out RTL2832U lens
155 	 */
156 
157 	/*
158 	 * I2C adapter logic looks rather complicated due to fact it handles
159 	 * three different access methods. Those methods are;
160 	 * 1) integrated demod access
161 	 * 2) old I2C access
162 	 * 3) new I2C access
163 	 *
164 	 * Used method is selected in order 1, 2, 3. Method 3 can handle all
165 	 * requests but there is two reasons why not use it always;
166 	 * 1) It is most expensive, usually two USB messages are needed
167 	 * 2) At least RTL2831U does not support it
168 	 *
169 	 * Method 3 is needed in case of I2C write+read (typical register read)
170 	 * where write is more than one byte.
171 	 */
172 
173 	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
174 		return -EAGAIN;
175 
176 	if (num == 2 && !(msg[0].flags & I2C_M_RD) &&
177 		(msg[1].flags & I2C_M_RD)) {
178 		if (msg[0].len > 24 || msg[1].len > 24) {
179 			/* TODO: check msg[0].len max */
180 			ret = -EOPNOTSUPP;
181 			goto err_mutex_unlock;
182 		} else if (msg[0].addr == 0x10) {
183 			/* method 1 - integrated demod */
184 			if (msg[0].buf[0] == 0x00) {
185 				/* return demod page from driver cache */
186 				msg[1].buf[0] = dev->page;
187 				ret = 0;
188 			} else {
189 				req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
190 				req.index = CMD_DEMOD_RD | dev->page;
191 				req.size = msg[1].len;
192 				req.data = &msg[1].buf[0];
193 				ret = rtl28xxu_ctrl_msg(d, &req);
194 			}
195 		} else if (msg[0].len < 2) {
196 			/* method 2 - old I2C */
197 			req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
198 			req.index = CMD_I2C_RD;
199 			req.size = msg[1].len;
200 			req.data = &msg[1].buf[0];
201 			ret = rtl28xxu_ctrl_msg(d, &req);
202 		} else {
203 			/* method 3 - new I2C */
204 			req.value = (msg[0].addr << 1);
205 			req.index = CMD_I2C_DA_WR;
206 			req.size = msg[0].len;
207 			req.data = msg[0].buf;
208 			ret = rtl28xxu_ctrl_msg(d, &req);
209 			if (ret)
210 				goto err_mutex_unlock;
211 
212 			req.value = (msg[0].addr << 1);
213 			req.index = CMD_I2C_DA_RD;
214 			req.size = msg[1].len;
215 			req.data = msg[1].buf;
216 			ret = rtl28xxu_ctrl_msg(d, &req);
217 		}
218 	} else if (num == 1 && !(msg[0].flags & I2C_M_RD)) {
219 		if (msg[0].len > 22) {
220 			/* TODO: check msg[0].len max */
221 			ret = -EOPNOTSUPP;
222 			goto err_mutex_unlock;
223 		} else if (msg[0].addr == 0x10) {
224 			/* method 1 - integrated demod */
225 			if (msg[0].buf[0] == 0x00) {
226 				/* save demod page for later demod access */
227 				dev->page = msg[0].buf[1];
228 				ret = 0;
229 			} else {
230 				req.value = (msg[0].buf[0] << 8) |
231 					(msg[0].addr << 1);
232 				req.index = CMD_DEMOD_WR | dev->page;
233 				req.size = msg[0].len-1;
234 				req.data = &msg[0].buf[1];
235 				ret = rtl28xxu_ctrl_msg(d, &req);
236 			}
237 		} else if ((msg[0].len < 23) && (!dev->new_i2c_write)) {
238 			/* method 2 - old I2C */
239 			req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
240 			req.index = CMD_I2C_WR;
241 			req.size = msg[0].len-1;
242 			req.data = &msg[0].buf[1];
243 			ret = rtl28xxu_ctrl_msg(d, &req);
244 		} else {
245 			/* method 3 - new I2C */
246 			req.value = (msg[0].addr << 1);
247 			req.index = CMD_I2C_DA_WR;
248 			req.size = msg[0].len;
249 			req.data = msg[0].buf;
250 			ret = rtl28xxu_ctrl_msg(d, &req);
251 		}
252 	} else if (num == 1 && (msg[0].flags & I2C_M_RD)) {
253 		req.value = (msg[0].addr << 1);
254 		req.index = CMD_I2C_DA_RD;
255 		req.size = msg[0].len;
256 		req.data = msg[0].buf;
257 		ret = rtl28xxu_ctrl_msg(d, &req);
258 	} else {
259 		ret = -EOPNOTSUPP;
260 	}
261 
262 err_mutex_unlock:
263 	mutex_unlock(&d->i2c_mutex);
264 
265 	return ret ? ret : num;
266 }
267 
268 static u32 rtl28xxu_i2c_func(struct i2c_adapter *adapter)
269 {
270 	return I2C_FUNC_I2C;
271 }
272 
273 static struct i2c_algorithm rtl28xxu_i2c_algo = {
274 	.master_xfer   = rtl28xxu_i2c_xfer,
275 	.functionality = rtl28xxu_i2c_func,
276 };
277 
278 static int rtl2831u_read_config(struct dvb_usb_device *d)
279 {
280 	struct rtl28xxu_dev *dev = d_to_priv(d);
281 	int ret;
282 	u8 buf[1];
283 	/* open RTL2831U/RTL2830 I2C gate */
284 	struct rtl28xxu_req req_gate_open = {0x0120, 0x0011, 0x0001, "\x08"};
285 	/* tuner probes */
286 	struct rtl28xxu_req req_mt2060 = {0x00c0, CMD_I2C_RD, 1, buf};
287 	struct rtl28xxu_req req_qt1010 = {0x0fc4, CMD_I2C_RD, 1, buf};
288 
289 	dev_dbg(&d->intf->dev, "\n");
290 
291 	/*
292 	 * RTL2831U GPIOs
293 	 * =========================================================
294 	 * GPIO0 | tuner#0 | 0 off | 1 on  | MXL5005S (?)
295 	 * GPIO2 | LED     | 0 off | 1 on  |
296 	 * GPIO4 | tuner#1 | 0 on  | 1 off | MT2060
297 	 */
298 
299 	/* GPIO direction */
300 	ret = rtl28xxu_wr_reg(d, SYS_GPIO_DIR, 0x0a);
301 	if (ret)
302 		goto err;
303 
304 	/* enable as output GPIO0, GPIO2, GPIO4 */
305 	ret = rtl28xxu_wr_reg(d, SYS_GPIO_OUT_EN, 0x15);
306 	if (ret)
307 		goto err;
308 
309 	/*
310 	 * Probe used tuner. We need to know used tuner before demod attach
311 	 * since there is some demod params needed to set according to tuner.
312 	 */
313 
314 	/* demod needs some time to wake up */
315 	msleep(20);
316 
317 	dev->tuner_name = "NONE";
318 
319 	/* open demod I2C gate */
320 	ret = rtl28xxu_ctrl_msg(d, &req_gate_open);
321 	if (ret)
322 		goto err;
323 
324 	/* check QT1010 ID(?) register; reg=0f val=2c */
325 	ret = rtl28xxu_ctrl_msg(d, &req_qt1010);
326 	if (ret == 0 && buf[0] == 0x2c) {
327 		dev->tuner = TUNER_RTL2830_QT1010;
328 		dev->tuner_name = "QT1010";
329 		goto found;
330 	}
331 
332 	/* open demod I2C gate */
333 	ret = rtl28xxu_ctrl_msg(d, &req_gate_open);
334 	if (ret)
335 		goto err;
336 
337 	/* check MT2060 ID register; reg=00 val=63 */
338 	ret = rtl28xxu_ctrl_msg(d, &req_mt2060);
339 	if (ret == 0 && buf[0] == 0x63) {
340 		dev->tuner = TUNER_RTL2830_MT2060;
341 		dev->tuner_name = "MT2060";
342 		goto found;
343 	}
344 
345 	/* assume MXL5005S */
346 	dev->tuner = TUNER_RTL2830_MXL5005S;
347 	dev->tuner_name = "MXL5005S";
348 	goto found;
349 
350 found:
351 	dev_dbg(&d->intf->dev, "tuner=%s\n", dev->tuner_name);
352 
353 	return 0;
354 err:
355 	dev_dbg(&d->intf->dev, "failed=%d\n", ret);
356 	return ret;
357 }
358 
359 static int rtl2832u_read_config(struct dvb_usb_device *d)
360 {
361 	struct rtl28xxu_dev *dev = d_to_priv(d);
362 	int ret;
363 	u8 buf[2];
364 	/* open RTL2832U/RTL2832 I2C gate */
365 	struct rtl28xxu_req req_gate_open = {0x0120, 0x0011, 0x0001, "\x18"};
366 	/* close RTL2832U/RTL2832 I2C gate */
367 	struct rtl28xxu_req req_gate_close = {0x0120, 0x0011, 0x0001, "\x10"};
368 	/* tuner probes */
369 	struct rtl28xxu_req req_fc0012 = {0x00c6, CMD_I2C_RD, 1, buf};
370 	struct rtl28xxu_req req_fc0013 = {0x00c6, CMD_I2C_RD, 1, buf};
371 	struct rtl28xxu_req req_mt2266 = {0x00c0, CMD_I2C_RD, 1, buf};
372 	struct rtl28xxu_req req_fc2580 = {0x01ac, CMD_I2C_RD, 1, buf};
373 	struct rtl28xxu_req req_mt2063 = {0x00c0, CMD_I2C_RD, 1, buf};
374 	struct rtl28xxu_req req_max3543 = {0x00c0, CMD_I2C_RD, 1, buf};
375 	struct rtl28xxu_req req_tua9001 = {0x7ec0, CMD_I2C_RD, 2, buf};
376 	struct rtl28xxu_req req_mxl5007t = {0xd9c0, CMD_I2C_RD, 1, buf};
377 	struct rtl28xxu_req req_e4000 = {0x02c8, CMD_I2C_RD, 1, buf};
378 	struct rtl28xxu_req req_tda18272 = {0x00c0, CMD_I2C_RD, 2, buf};
379 	struct rtl28xxu_req req_r820t = {0x0034, CMD_I2C_RD, 1, buf};
380 	struct rtl28xxu_req req_r828d = {0x0074, CMD_I2C_RD, 1, buf};
381 	struct rtl28xxu_req req_mn88472 = {0xff38, CMD_I2C_RD, 1, buf};
382 	struct rtl28xxu_req req_mn88473 = {0xff38, CMD_I2C_RD, 1, buf};
383 	struct rtl28xxu_req req_si2157 = {0x00c0, CMD_I2C_RD, 1, buf};
384 	struct rtl28xxu_req req_si2168 = {0x00c8, CMD_I2C_RD, 1, buf};
385 
386 	dev_dbg(&d->intf->dev, "\n");
387 
388 	/* enable GPIO3 and GPIO6 as output */
389 	ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x40);
390 	if (ret)
391 		goto err;
392 
393 	ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x48, 0x48);
394 	if (ret)
395 		goto err;
396 
397 	/*
398 	 * Probe used tuner. We need to know used tuner before demod attach
399 	 * since there is some demod params needed to set according to tuner.
400 	 */
401 
402 	/* open demod I2C gate */
403 	ret = rtl28xxu_ctrl_msg(d, &req_gate_open);
404 	if (ret)
405 		goto err;
406 
407 	dev->tuner_name = "NONE";
408 
409 	/* check FC0012 ID register; reg=00 val=a1 */
410 	ret = rtl28xxu_ctrl_msg(d, &req_fc0012);
411 	if (ret == 0 && buf[0] == 0xa1) {
412 		dev->tuner = TUNER_RTL2832_FC0012;
413 		dev->tuner_name = "FC0012";
414 		goto tuner_found;
415 	}
416 
417 	/* check FC0013 ID register; reg=00 val=a3 */
418 	ret = rtl28xxu_ctrl_msg(d, &req_fc0013);
419 	if (ret == 0 && buf[0] == 0xa3) {
420 		dev->tuner = TUNER_RTL2832_FC0013;
421 		dev->tuner_name = "FC0013";
422 		goto tuner_found;
423 	}
424 
425 	/* check MT2266 ID register; reg=00 val=85 */
426 	ret = rtl28xxu_ctrl_msg(d, &req_mt2266);
427 	if (ret == 0 && buf[0] == 0x85) {
428 		dev->tuner = TUNER_RTL2832_MT2266;
429 		dev->tuner_name = "MT2266";
430 		goto tuner_found;
431 	}
432 
433 	/* check FC2580 ID register; reg=01 val=56 */
434 	ret = rtl28xxu_ctrl_msg(d, &req_fc2580);
435 	if (ret == 0 && buf[0] == 0x56) {
436 		dev->tuner = TUNER_RTL2832_FC2580;
437 		dev->tuner_name = "FC2580";
438 		goto tuner_found;
439 	}
440 
441 	/* check MT2063 ID register; reg=00 val=9e || 9c */
442 	ret = rtl28xxu_ctrl_msg(d, &req_mt2063);
443 	if (ret == 0 && (buf[0] == 0x9e || buf[0] == 0x9c)) {
444 		dev->tuner = TUNER_RTL2832_MT2063;
445 		dev->tuner_name = "MT2063";
446 		goto tuner_found;
447 	}
448 
449 	/* check MAX3543 ID register; reg=00 val=38 */
450 	ret = rtl28xxu_ctrl_msg(d, &req_max3543);
451 	if (ret == 0 && buf[0] == 0x38) {
452 		dev->tuner = TUNER_RTL2832_MAX3543;
453 		dev->tuner_name = "MAX3543";
454 		goto tuner_found;
455 	}
456 
457 	/* check TUA9001 ID register; reg=7e val=2328 */
458 	ret = rtl28xxu_ctrl_msg(d, &req_tua9001);
459 	if (ret == 0 && buf[0] == 0x23 && buf[1] == 0x28) {
460 		dev->tuner = TUNER_RTL2832_TUA9001;
461 		dev->tuner_name = "TUA9001";
462 		goto tuner_found;
463 	}
464 
465 	/* check MXL5007R ID register; reg=d9 val=14 */
466 	ret = rtl28xxu_ctrl_msg(d, &req_mxl5007t);
467 	if (ret == 0 && buf[0] == 0x14) {
468 		dev->tuner = TUNER_RTL2832_MXL5007T;
469 		dev->tuner_name = "MXL5007T";
470 		goto tuner_found;
471 	}
472 
473 	/* check E4000 ID register; reg=02 val=40 */
474 	ret = rtl28xxu_ctrl_msg(d, &req_e4000);
475 	if (ret == 0 && buf[0] == 0x40) {
476 		dev->tuner = TUNER_RTL2832_E4000;
477 		dev->tuner_name = "E4000";
478 		goto tuner_found;
479 	}
480 
481 	/* check TDA18272 ID register; reg=00 val=c760  */
482 	ret = rtl28xxu_ctrl_msg(d, &req_tda18272);
483 	if (ret == 0 && (buf[0] == 0xc7 || buf[1] == 0x60)) {
484 		dev->tuner = TUNER_RTL2832_TDA18272;
485 		dev->tuner_name = "TDA18272";
486 		goto tuner_found;
487 	}
488 
489 	/* check R820T ID register; reg=00 val=69 */
490 	ret = rtl28xxu_ctrl_msg(d, &req_r820t);
491 	if (ret == 0 && buf[0] == 0x69) {
492 		dev->tuner = TUNER_RTL2832_R820T;
493 		dev->tuner_name = "R820T";
494 		goto tuner_found;
495 	}
496 
497 	/* check R828D ID register; reg=00 val=69 */
498 	ret = rtl28xxu_ctrl_msg(d, &req_r828d);
499 	if (ret == 0 && buf[0] == 0x69) {
500 		dev->tuner = TUNER_RTL2832_R828D;
501 		dev->tuner_name = "R828D";
502 		goto tuner_found;
503 	}
504 
505 	/* GPIO0 and GPIO5 to reset Si2157/Si2168 tuner and demod */
506 	ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x00, 0x21);
507 	if (ret)
508 		goto err;
509 
510 	ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x00, 0x21);
511 	if (ret)
512 		goto err;
513 
514 	msleep(50);
515 
516 	ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x21, 0x21);
517 	if (ret)
518 		goto err;
519 
520 	ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x21, 0x21);
521 	if (ret)
522 		goto err;
523 
524 	msleep(50);
525 
526 	/* check Si2157 ID register; reg=c0 val=80 */
527 	ret = rtl28xxu_ctrl_msg(d, &req_si2157);
528 	if (ret == 0 && ((buf[0] & 0x80) == 0x80)) {
529 		dev->tuner = TUNER_RTL2832_SI2157;
530 		dev->tuner_name = "SI2157";
531 		goto tuner_found;
532 	}
533 
534 tuner_found:
535 	dev_dbg(&d->intf->dev, "tuner=%s\n", dev->tuner_name);
536 
537 	/* probe slave demod */
538 	if (dev->tuner == TUNER_RTL2832_R828D) {
539 		/* power on MN88472 demod on GPIO0 */
540 		ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x01, 0x01);
541 		if (ret)
542 			goto err;
543 
544 		ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x01);
545 		if (ret)
546 			goto err;
547 
548 		ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x01, 0x01);
549 		if (ret)
550 			goto err;
551 
552 		/* check MN88472 answers */
553 		ret = rtl28xxu_ctrl_msg(d, &req_mn88472);
554 		if (ret == 0 && buf[0] == 0x02) {
555 			dev_dbg(&d->intf->dev, "MN88472 found\n");
556 			dev->slave_demod = SLAVE_DEMOD_MN88472;
557 			goto demod_found;
558 		}
559 
560 		ret = rtl28xxu_ctrl_msg(d, &req_mn88473);
561 		if (ret == 0 && buf[0] == 0x03) {
562 			dev_dbg(&d->intf->dev, "MN88473 found\n");
563 			dev->slave_demod = SLAVE_DEMOD_MN88473;
564 			goto demod_found;
565 		}
566 	}
567 	if (dev->tuner == TUNER_RTL2832_SI2157) {
568 		/* check Si2168 ID register; reg=c8 val=80 */
569 		ret = rtl28xxu_ctrl_msg(d, &req_si2168);
570 		if (ret == 0 && ((buf[0] & 0x80) == 0x80)) {
571 			dev_dbg(&d->intf->dev, "Si2168 found\n");
572 			dev->slave_demod = SLAVE_DEMOD_SI2168;
573 			goto demod_found;
574 		}
575 	}
576 
577 demod_found:
578 	/* close demod I2C gate */
579 	ret = rtl28xxu_ctrl_msg(d, &req_gate_close);
580 	if (ret < 0)
581 		goto err;
582 
583 	return 0;
584 err:
585 	dev_dbg(&d->intf->dev, "failed=%d\n", ret);
586 	return ret;
587 }
588 
589 static int rtl28xxu_read_config(struct dvb_usb_device *d)
590 {
591 	struct rtl28xxu_dev *dev = d_to_priv(d);
592 
593 	if (dev->chip_id == CHIP_ID_RTL2831U)
594 		return rtl2831u_read_config(d);
595 	else
596 		return rtl2832u_read_config(d);
597 }
598 
599 static int rtl28xxu_identify_state(struct dvb_usb_device *d, const char **name)
600 {
601 	struct rtl28xxu_dev *dev = d_to_priv(d);
602 	int ret;
603 	struct rtl28xxu_req req_demod_i2c = {0x0020, CMD_I2C_DA_RD, 0, NULL};
604 
605 	dev_dbg(&d->intf->dev, "\n");
606 
607 	/*
608 	 * Detect chip type using I2C command that is not supported
609 	 * by old RTL2831U.
610 	 */
611 	ret = rtl28xxu_ctrl_msg(d, &req_demod_i2c);
612 	if (ret == -EPIPE) {
613 		dev->chip_id = CHIP_ID_RTL2831U;
614 	} else if (ret == 0) {
615 		dev->chip_id = CHIP_ID_RTL2832U;
616 	} else {
617 		dev_err(&d->intf->dev, "chip type detection failed %d\n", ret);
618 		goto err;
619 	}
620 	dev_dbg(&d->intf->dev, "chip_id=%u\n", dev->chip_id);
621 
622 	return WARM;
623 err:
624 	dev_dbg(&d->intf->dev, "failed=%d\n", ret);
625 	return ret;
626 }
627 
628 static const struct rtl2830_platform_data rtl2830_mt2060_platform_data = {
629 	.clk = 28800000,
630 	.spec_inv = 1,
631 	.vtop = 0x20,
632 	.krf = 0x04,
633 	.agc_targ_val = 0x2d,
634 
635 };
636 
637 static const struct rtl2830_platform_data rtl2830_qt1010_platform_data = {
638 	.clk = 28800000,
639 	.spec_inv = 1,
640 	.vtop = 0x20,
641 	.krf = 0x04,
642 	.agc_targ_val = 0x2d,
643 };
644 
645 static const struct rtl2830_platform_data rtl2830_mxl5005s_platform_data = {
646 	.clk = 28800000,
647 	.spec_inv = 0,
648 	.vtop = 0x3f,
649 	.krf = 0x04,
650 	.agc_targ_val = 0x3e,
651 };
652 
653 static int rtl2831u_frontend_attach(struct dvb_usb_adapter *adap)
654 {
655 	struct dvb_usb_device *d = adap_to_d(adap);
656 	struct rtl28xxu_dev *dev = d_to_priv(d);
657 	struct rtl2830_platform_data *pdata = &dev->rtl2830_platform_data;
658 	struct i2c_board_info board_info;
659 	struct i2c_client *client;
660 	int ret;
661 
662 	dev_dbg(&d->intf->dev, "\n");
663 
664 	switch (dev->tuner) {
665 	case TUNER_RTL2830_QT1010:
666 		*pdata = rtl2830_qt1010_platform_data;
667 		break;
668 	case TUNER_RTL2830_MT2060:
669 		*pdata = rtl2830_mt2060_platform_data;
670 		break;
671 	case TUNER_RTL2830_MXL5005S:
672 		*pdata = rtl2830_mxl5005s_platform_data;
673 		break;
674 	default:
675 		dev_err(&d->intf->dev, "unknown tuner %s\n", dev->tuner_name);
676 		ret = -ENODEV;
677 		goto err;
678 	}
679 
680 	/* attach demodulator */
681 	memset(&board_info, 0, sizeof(board_info));
682 	strlcpy(board_info.type, "rtl2830", I2C_NAME_SIZE);
683 	board_info.addr = 0x10;
684 	board_info.platform_data = pdata;
685 	request_module("%s", board_info.type);
686 	client = i2c_new_device(&d->i2c_adap, &board_info);
687 	if (client == NULL || client->dev.driver == NULL) {
688 		ret = -ENODEV;
689 		goto err;
690 	}
691 
692 	if (!try_module_get(client->dev.driver->owner)) {
693 		i2c_unregister_device(client);
694 		ret = -ENODEV;
695 		goto err;
696 	}
697 
698 	adap->fe[0] = pdata->get_dvb_frontend(client);
699 	dev->demod_i2c_adapter = pdata->get_i2c_adapter(client);
700 
701 	dev->i2c_client_demod = client;
702 
703 	return 0;
704 err:
705 	dev_dbg(&d->intf->dev, "failed=%d\n", ret);
706 	return ret;
707 }
708 
709 static const struct rtl2832_platform_data rtl2832_fc2580_platform_data = {
710 	.clk = 28800000,
711 	.tuner = TUNER_RTL2832_FC2580,
712 };
713 
714 static const struct rtl2832_platform_data rtl2832_fc0012_platform_data = {
715 	.clk = 28800000,
716 	.tuner = TUNER_RTL2832_FC0012
717 };
718 
719 static const struct rtl2832_platform_data rtl2832_fc0013_platform_data = {
720 	.clk = 28800000,
721 	.tuner = TUNER_RTL2832_FC0013
722 };
723 
724 static const struct rtl2832_platform_data rtl2832_tua9001_platform_data = {
725 	.clk = 28800000,
726 	.tuner = TUNER_RTL2832_TUA9001,
727 };
728 
729 static const struct rtl2832_platform_data rtl2832_e4000_platform_data = {
730 	.clk = 28800000,
731 	.tuner = TUNER_RTL2832_E4000,
732 };
733 
734 static const struct rtl2832_platform_data rtl2832_r820t_platform_data = {
735 	.clk = 28800000,
736 	.tuner = TUNER_RTL2832_R820T,
737 };
738 
739 static const struct rtl2832_platform_data rtl2832_si2157_platform_data = {
740 	.clk = 28800000,
741 	.tuner = TUNER_RTL2832_SI2157,
742 };
743 
744 static int rtl2832u_fc0012_tuner_callback(struct dvb_usb_device *d,
745 		int cmd, int arg)
746 {
747 	int ret;
748 	u8 val;
749 
750 	dev_dbg(&d->intf->dev, "cmd=%d arg=%d\n", cmd, arg);
751 
752 	switch (cmd) {
753 	case FC_FE_CALLBACK_VHF_ENABLE:
754 		/* set output values */
755 		ret = rtl28xxu_rd_reg(d, SYS_GPIO_OUT_VAL, &val);
756 		if (ret)
757 			goto err;
758 
759 		if (arg)
760 			val &= 0xbf; /* set GPIO6 low */
761 		else
762 			val |= 0x40; /* set GPIO6 high */
763 
764 
765 		ret = rtl28xxu_wr_reg(d, SYS_GPIO_OUT_VAL, val);
766 		if (ret)
767 			goto err;
768 		break;
769 	default:
770 		ret = -EINVAL;
771 		goto err;
772 	}
773 	return 0;
774 err:
775 	dev_dbg(&d->intf->dev, "failed=%d\n", ret);
776 	return ret;
777 }
778 
779 static int rtl2832u_tua9001_tuner_callback(struct dvb_usb_device *d,
780 		int cmd, int arg)
781 {
782 	int ret;
783 	u8 val;
784 
785 	dev_dbg(&d->intf->dev, "cmd=%d arg=%d\n", cmd, arg);
786 
787 	/*
788 	 * CEN     always enabled by hardware wiring
789 	 * RESETN  GPIO4
790 	 * RXEN    GPIO1
791 	 */
792 
793 	switch (cmd) {
794 	case TUA9001_CMD_RESETN:
795 		if (arg)
796 			val = (1 << 4);
797 		else
798 			val = (0 << 4);
799 
800 		ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, val, 0x10);
801 		if (ret)
802 			goto err;
803 		break;
804 	case TUA9001_CMD_RXEN:
805 		if (arg)
806 			val = (1 << 1);
807 		else
808 			val = (0 << 1);
809 
810 		ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, val, 0x02);
811 		if (ret)
812 			goto err;
813 		break;
814 	}
815 
816 	return 0;
817 err:
818 	dev_dbg(&d->intf->dev, "failed=%d\n", ret);
819 	return ret;
820 }
821 
822 static int rtl2832u_frontend_callback(void *adapter_priv, int component,
823 		int cmd, int arg)
824 {
825 	struct i2c_adapter *adapter = adapter_priv;
826 	struct device *parent = adapter->dev.parent;
827 	struct i2c_adapter *parent_adapter;
828 	struct dvb_usb_device *d;
829 	struct rtl28xxu_dev *dev;
830 
831 	/*
832 	 * All tuners are connected to demod muxed I2C adapter. We have to
833 	 * resolve its parent adapter in order to get handle for this driver
834 	 * private data. That is a bit hackish solution, GPIO or direct driver
835 	 * callback would be better...
836 	 */
837 	if (parent != NULL && parent->type == &i2c_adapter_type)
838 		parent_adapter = to_i2c_adapter(parent);
839 	else
840 		return -EINVAL;
841 
842 	d = i2c_get_adapdata(parent_adapter);
843 	dev = d->priv;
844 
845 	dev_dbg(&d->intf->dev, "component=%d cmd=%d arg=%d\n",
846 		component, cmd, arg);
847 
848 	switch (component) {
849 	case DVB_FRONTEND_COMPONENT_TUNER:
850 		switch (dev->tuner) {
851 		case TUNER_RTL2832_FC0012:
852 			return rtl2832u_fc0012_tuner_callback(d, cmd, arg);
853 		case TUNER_RTL2832_TUA9001:
854 			return rtl2832u_tua9001_tuner_callback(d, cmd, arg);
855 		}
856 	}
857 
858 	return 0;
859 }
860 
861 static int rtl2832u_frontend_attach(struct dvb_usb_adapter *adap)
862 {
863 	struct dvb_usb_device *d = adap_to_d(adap);
864 	struct rtl28xxu_dev *dev = d_to_priv(d);
865 	struct rtl2832_platform_data *pdata = &dev->rtl2832_platform_data;
866 	struct i2c_board_info board_info;
867 	struct i2c_client *client;
868 	int ret;
869 
870 	dev_dbg(&d->intf->dev, "\n");
871 
872 	switch (dev->tuner) {
873 	case TUNER_RTL2832_FC0012:
874 		*pdata = rtl2832_fc0012_platform_data;
875 		break;
876 	case TUNER_RTL2832_FC0013:
877 		*pdata = rtl2832_fc0013_platform_data;
878 		break;
879 	case TUNER_RTL2832_FC2580:
880 		*pdata = rtl2832_fc2580_platform_data;
881 		break;
882 	case TUNER_RTL2832_TUA9001:
883 		*pdata = rtl2832_tua9001_platform_data;
884 		break;
885 	case TUNER_RTL2832_E4000:
886 		*pdata = rtl2832_e4000_platform_data;
887 		break;
888 	case TUNER_RTL2832_R820T:
889 	case TUNER_RTL2832_R828D:
890 		*pdata = rtl2832_r820t_platform_data;
891 		break;
892 	case TUNER_RTL2832_SI2157:
893 		*pdata = rtl2832_si2157_platform_data;
894 		break;
895 	default:
896 		dev_err(&d->intf->dev, "unknown tuner %s\n", dev->tuner_name);
897 		ret = -ENODEV;
898 		goto err;
899 	}
900 
901 	/* attach demodulator */
902 	memset(&board_info, 0, sizeof(board_info));
903 	strlcpy(board_info.type, "rtl2832", I2C_NAME_SIZE);
904 	board_info.addr = 0x10;
905 	board_info.platform_data = pdata;
906 	request_module("%s", board_info.type);
907 	client = i2c_new_device(&d->i2c_adap, &board_info);
908 	if (client == NULL || client->dev.driver == NULL) {
909 		ret = -ENODEV;
910 		goto err;
911 	}
912 
913 	if (!try_module_get(client->dev.driver->owner)) {
914 		i2c_unregister_device(client);
915 		ret = -ENODEV;
916 		goto err;
917 	}
918 
919 	adap->fe[0] = pdata->get_dvb_frontend(client);
920 	dev->demod_i2c_adapter = pdata->get_i2c_adapter(client);
921 
922 	dev->i2c_client_demod = client;
923 
924 	/* set fe callback */
925 	adap->fe[0]->callback = rtl2832u_frontend_callback;
926 
927 	if (dev->slave_demod) {
928 		struct i2c_board_info info = {};
929 
930 		/*
931 		 * We continue on reduced mode, without DVB-T2/C, using master
932 		 * demod, when slave demod fails.
933 		 */
934 		ret = 0;
935 
936 		/* attach slave demodulator */
937 		if (dev->slave_demod == SLAVE_DEMOD_MN88472) {
938 			struct mn88472_config mn88472_config = {};
939 
940 			mn88472_config.fe = &adap->fe[1];
941 			mn88472_config.i2c_wr_max = 22,
942 			strlcpy(info.type, "mn88472", I2C_NAME_SIZE);
943 			mn88472_config.xtal = 20500000;
944 			mn88472_config.ts_mode = SERIAL_TS_MODE;
945 			mn88472_config.ts_clock = VARIABLE_TS_CLOCK;
946 			info.addr = 0x18;
947 			info.platform_data = &mn88472_config;
948 			request_module(info.type);
949 			client = i2c_new_device(&d->i2c_adap, &info);
950 			if (client == NULL || client->dev.driver == NULL) {
951 				dev->slave_demod = SLAVE_DEMOD_NONE;
952 				goto err_slave_demod_failed;
953 			}
954 
955 			if (!try_module_get(client->dev.driver->owner)) {
956 				i2c_unregister_device(client);
957 				dev->slave_demod = SLAVE_DEMOD_NONE;
958 				goto err_slave_demod_failed;
959 			}
960 
961 			dev->i2c_client_slave_demod = client;
962 		} else if (dev->slave_demod == SLAVE_DEMOD_MN88473) {
963 			struct mn88473_config mn88473_config = {};
964 
965 			mn88473_config.fe = &adap->fe[1];
966 			mn88473_config.i2c_wr_max = 22,
967 			strlcpy(info.type, "mn88473", I2C_NAME_SIZE);
968 			info.addr = 0x18;
969 			info.platform_data = &mn88473_config;
970 			request_module(info.type);
971 			client = i2c_new_device(&d->i2c_adap, &info);
972 			if (client == NULL || client->dev.driver == NULL) {
973 				dev->slave_demod = SLAVE_DEMOD_NONE;
974 				goto err_slave_demod_failed;
975 			}
976 
977 			if (!try_module_get(client->dev.driver->owner)) {
978 				i2c_unregister_device(client);
979 				dev->slave_demod = SLAVE_DEMOD_NONE;
980 				goto err_slave_demod_failed;
981 			}
982 
983 			dev->i2c_client_slave_demod = client;
984 		} else {
985 			struct si2168_config si2168_config = {};
986 			struct i2c_adapter *adapter;
987 
988 			si2168_config.i2c_adapter = &adapter;
989 			si2168_config.fe = &adap->fe[1];
990 			si2168_config.ts_mode = SI2168_TS_SERIAL;
991 			si2168_config.ts_clock_inv = false;
992 			si2168_config.ts_clock_gapped = true;
993 			strlcpy(info.type, "si2168", I2C_NAME_SIZE);
994 			info.addr = 0x64;
995 			info.platform_data = &si2168_config;
996 			request_module(info.type);
997 			client = i2c_new_device(&d->i2c_adap, &info);
998 			if (client == NULL || client->dev.driver == NULL) {
999 				dev->slave_demod = SLAVE_DEMOD_NONE;
1000 				goto err_slave_demod_failed;
1001 			}
1002 
1003 			if (!try_module_get(client->dev.driver->owner)) {
1004 				i2c_unregister_device(client);
1005 				dev->slave_demod = SLAVE_DEMOD_NONE;
1006 				goto err_slave_demod_failed;
1007 			}
1008 
1009 			dev->i2c_client_slave_demod = client;
1010 
1011 			/* for Si2168 devices use only new I2C write method */
1012 			dev->new_i2c_write = true;
1013 		}
1014 	}
1015 	return 0;
1016 err_slave_demod_failed:
1017 err:
1018 	dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1019 	return ret;
1020 }
1021 
1022 static int rtl28xxu_frontend_attach(struct dvb_usb_adapter *adap)
1023 {
1024 	struct rtl28xxu_dev *dev = adap_to_priv(adap);
1025 
1026 	if (dev->chip_id == CHIP_ID_RTL2831U)
1027 		return rtl2831u_frontend_attach(adap);
1028 	else
1029 		return rtl2832u_frontend_attach(adap);
1030 }
1031 
1032 static int rtl28xxu_frontend_detach(struct dvb_usb_adapter *adap)
1033 {
1034 	struct dvb_usb_device *d = adap_to_d(adap);
1035 	struct rtl28xxu_dev *dev = d_to_priv(d);
1036 	struct i2c_client *client;
1037 
1038 	dev_dbg(&d->intf->dev, "\n");
1039 
1040 	/* remove I2C slave demod */
1041 	client = dev->i2c_client_slave_demod;
1042 	if (client) {
1043 		module_put(client->dev.driver->owner);
1044 		i2c_unregister_device(client);
1045 	}
1046 
1047 	/* remove I2C demod */
1048 	client = dev->i2c_client_demod;
1049 	if (client) {
1050 		module_put(client->dev.driver->owner);
1051 		i2c_unregister_device(client);
1052 	}
1053 
1054 	return 0;
1055 }
1056 
1057 static struct qt1010_config rtl28xxu_qt1010_config = {
1058 	.i2c_address = 0x62, /* 0xc4 */
1059 };
1060 
1061 static struct mt2060_config rtl28xxu_mt2060_config = {
1062 	.i2c_address = 0x60, /* 0xc0 */
1063 	.clock_out = 0,
1064 };
1065 
1066 static struct mxl5005s_config rtl28xxu_mxl5005s_config = {
1067 	.i2c_address     = 0x63, /* 0xc6 */
1068 	.if_freq         = IF_FREQ_4570000HZ,
1069 	.xtal_freq       = CRYSTAL_FREQ_16000000HZ,
1070 	.agc_mode        = MXL_SINGLE_AGC,
1071 	.tracking_filter = MXL_TF_C_H,
1072 	.rssi_enable     = MXL_RSSI_ENABLE,
1073 	.cap_select      = MXL_CAP_SEL_ENABLE,
1074 	.div_out         = MXL_DIV_OUT_4,
1075 	.clock_out       = MXL_CLOCK_OUT_DISABLE,
1076 	.output_load     = MXL5005S_IF_OUTPUT_LOAD_200_OHM,
1077 	.top		 = MXL5005S_TOP_25P2,
1078 	.mod_mode        = MXL_DIGITAL_MODE,
1079 	.if_mode         = MXL_ZERO_IF,
1080 	.AgcMasterByte   = 0x00,
1081 };
1082 
1083 static int rtl2831u_tuner_attach(struct dvb_usb_adapter *adap)
1084 {
1085 	int ret;
1086 	struct dvb_usb_device *d = adap_to_d(adap);
1087 	struct rtl28xxu_dev *dev = d_to_priv(d);
1088 	struct dvb_frontend *fe;
1089 
1090 	dev_dbg(&d->intf->dev, "\n");
1091 
1092 	switch (dev->tuner) {
1093 	case TUNER_RTL2830_QT1010:
1094 		fe = dvb_attach(qt1010_attach, adap->fe[0],
1095 				dev->demod_i2c_adapter,
1096 				&rtl28xxu_qt1010_config);
1097 		break;
1098 	case TUNER_RTL2830_MT2060:
1099 		fe = dvb_attach(mt2060_attach, adap->fe[0],
1100 				dev->demod_i2c_adapter,
1101 				&rtl28xxu_mt2060_config, 1220);
1102 		break;
1103 	case TUNER_RTL2830_MXL5005S:
1104 		fe = dvb_attach(mxl5005s_attach, adap->fe[0],
1105 				dev->demod_i2c_adapter,
1106 				&rtl28xxu_mxl5005s_config);
1107 		break;
1108 	default:
1109 		fe = NULL;
1110 		dev_err(&d->intf->dev, "unknown tuner %d\n", dev->tuner);
1111 	}
1112 
1113 	if (fe == NULL) {
1114 		ret = -ENODEV;
1115 		goto err;
1116 	}
1117 
1118 	return 0;
1119 err:
1120 	dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1121 	return ret;
1122 }
1123 
1124 static const struct fc0012_config rtl2832u_fc0012_config = {
1125 	.i2c_address = 0x63, /* 0xc6 >> 1 */
1126 	.xtal_freq = FC_XTAL_28_8_MHZ,
1127 };
1128 
1129 static const struct r820t_config rtl2832u_r820t_config = {
1130 	.i2c_addr = 0x1a,
1131 	.xtal = 28800000,
1132 	.max_i2c_msg_len = 2,
1133 	.rafael_chip = CHIP_R820T,
1134 };
1135 
1136 static const struct r820t_config rtl2832u_r828d_config = {
1137 	.i2c_addr = 0x3a,
1138 	.xtal = 16000000,
1139 	.max_i2c_msg_len = 2,
1140 	.rafael_chip = CHIP_R828D,
1141 };
1142 
1143 static int rtl2832u_tuner_attach(struct dvb_usb_adapter *adap)
1144 {
1145 	int ret;
1146 	struct dvb_usb_device *d = adap_to_d(adap);
1147 	struct rtl28xxu_dev *dev = d_to_priv(d);
1148 	struct dvb_frontend *fe = NULL;
1149 	struct i2c_board_info info;
1150 	struct i2c_client *client;
1151 	struct v4l2_subdev *subdev = NULL;
1152 	struct platform_device *pdev;
1153 	struct rtl2832_sdr_platform_data pdata;
1154 
1155 	dev_dbg(&d->intf->dev, "\n");
1156 
1157 	memset(&info, 0, sizeof(struct i2c_board_info));
1158 	memset(&pdata, 0, sizeof(pdata));
1159 
1160 	switch (dev->tuner) {
1161 	case TUNER_RTL2832_FC0012:
1162 		fe = dvb_attach(fc0012_attach, adap->fe[0],
1163 			dev->demod_i2c_adapter, &rtl2832u_fc0012_config);
1164 
1165 		/* since fc0012 includs reading the signal strength delegate
1166 		 * that to the tuner driver */
1167 		adap->fe[0]->ops.read_signal_strength =
1168 				adap->fe[0]->ops.tuner_ops.get_rf_strength;
1169 		break;
1170 	case TUNER_RTL2832_FC0013:
1171 		fe = dvb_attach(fc0013_attach, adap->fe[0],
1172 			dev->demod_i2c_adapter, 0xc6>>1, 0, FC_XTAL_28_8_MHZ);
1173 
1174 		/* fc0013 also supports signal strength reading */
1175 		adap->fe[0]->ops.read_signal_strength =
1176 				adap->fe[0]->ops.tuner_ops.get_rf_strength;
1177 		break;
1178 	case TUNER_RTL2832_E4000: {
1179 			struct e4000_config e4000_config = {
1180 				.fe = adap->fe[0],
1181 				.clock = 28800000,
1182 			};
1183 
1184 			strlcpy(info.type, "e4000", I2C_NAME_SIZE);
1185 			info.addr = 0x64;
1186 			info.platform_data = &e4000_config;
1187 
1188 			request_module(info.type);
1189 			client = i2c_new_device(dev->demod_i2c_adapter, &info);
1190 			if (client == NULL || client->dev.driver == NULL)
1191 				break;
1192 
1193 			if (!try_module_get(client->dev.driver->owner)) {
1194 				i2c_unregister_device(client);
1195 				break;
1196 			}
1197 
1198 			dev->i2c_client_tuner = client;
1199 			subdev = i2c_get_clientdata(client);
1200 		}
1201 		break;
1202 	case TUNER_RTL2832_FC2580: {
1203 			struct fc2580_platform_data fc2580_pdata = {
1204 				.dvb_frontend = adap->fe[0],
1205 			};
1206 			struct i2c_board_info board_info = {};
1207 
1208 			strlcpy(board_info.type, "fc2580", I2C_NAME_SIZE);
1209 			board_info.addr = 0x56;
1210 			board_info.platform_data = &fc2580_pdata;
1211 			request_module("fc2580");
1212 			client = i2c_new_device(dev->demod_i2c_adapter,
1213 						&board_info);
1214 			if (client == NULL || client->dev.driver == NULL)
1215 				break;
1216 			if (!try_module_get(client->dev.driver->owner)) {
1217 				i2c_unregister_device(client);
1218 				break;
1219 			}
1220 			dev->i2c_client_tuner = client;
1221 			subdev = fc2580_pdata.get_v4l2_subdev(client);
1222 		}
1223 		break;
1224 	case TUNER_RTL2832_TUA9001: {
1225 		struct tua9001_platform_data tua9001_pdata = {
1226 			.dvb_frontend = adap->fe[0],
1227 		};
1228 		struct i2c_board_info board_info = {};
1229 
1230 		/* enable GPIO1 and GPIO4 as output */
1231 		ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x12);
1232 		if (ret)
1233 			goto err;
1234 
1235 		ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x12, 0x12);
1236 		if (ret)
1237 			goto err;
1238 
1239 		strlcpy(board_info.type, "tua9001", I2C_NAME_SIZE);
1240 		board_info.addr = 0x60;
1241 		board_info.platform_data = &tua9001_pdata;
1242 		request_module("tua9001");
1243 		client = i2c_new_device(dev->demod_i2c_adapter, &board_info);
1244 		if (client == NULL || client->dev.driver == NULL)
1245 			break;
1246 		if (!try_module_get(client->dev.driver->owner)) {
1247 			i2c_unregister_device(client);
1248 			break;
1249 		}
1250 		dev->i2c_client_tuner = client;
1251 		break;
1252 	}
1253 	case TUNER_RTL2832_R820T:
1254 		fe = dvb_attach(r820t_attach, adap->fe[0],
1255 				dev->demod_i2c_adapter,
1256 				&rtl2832u_r820t_config);
1257 
1258 		/* Use tuner to get the signal strength */
1259 		adap->fe[0]->ops.read_signal_strength =
1260 				adap->fe[0]->ops.tuner_ops.get_rf_strength;
1261 		break;
1262 	case TUNER_RTL2832_R828D:
1263 		fe = dvb_attach(r820t_attach, adap->fe[0],
1264 				dev->demod_i2c_adapter,
1265 				&rtl2832u_r828d_config);
1266 		adap->fe[0]->ops.read_signal_strength =
1267 				adap->fe[0]->ops.tuner_ops.get_rf_strength;
1268 
1269 		if (adap->fe[1]) {
1270 			fe = dvb_attach(r820t_attach, adap->fe[1],
1271 					dev->demod_i2c_adapter,
1272 					&rtl2832u_r828d_config);
1273 			adap->fe[1]->ops.read_signal_strength =
1274 					adap->fe[1]->ops.tuner_ops.get_rf_strength;
1275 		}
1276 		break;
1277 	case TUNER_RTL2832_SI2157: {
1278 			struct si2157_config si2157_config = {
1279 				.fe = adap->fe[0],
1280 				.if_port = 0,
1281 				.inversion = false,
1282 			};
1283 
1284 			strlcpy(info.type, "si2157", I2C_NAME_SIZE);
1285 			info.addr = 0x60;
1286 			info.platform_data = &si2157_config;
1287 			request_module(info.type);
1288 			client = i2c_new_device(&d->i2c_adap, &info);
1289 			if (client == NULL || client->dev.driver == NULL)
1290 				break;
1291 
1292 			if (!try_module_get(client->dev.driver->owner)) {
1293 				i2c_unregister_device(client);
1294 				break;
1295 			}
1296 
1297 			dev->i2c_client_tuner = client;
1298 			subdev = i2c_get_clientdata(client);
1299 
1300 			/* copy tuner ops for 2nd FE as tuner is shared */
1301 			if (adap->fe[1]) {
1302 				adap->fe[1]->tuner_priv =
1303 						adap->fe[0]->tuner_priv;
1304 				memcpy(&adap->fe[1]->ops.tuner_ops,
1305 						&adap->fe[0]->ops.tuner_ops,
1306 						sizeof(struct dvb_tuner_ops));
1307 			}
1308 		}
1309 		break;
1310 	default:
1311 		dev_err(&d->intf->dev, "unknown tuner %d\n", dev->tuner);
1312 	}
1313 	if (fe == NULL && dev->i2c_client_tuner == NULL) {
1314 		ret = -ENODEV;
1315 		goto err;
1316 	}
1317 
1318 	/* register SDR */
1319 	switch (dev->tuner) {
1320 	case TUNER_RTL2832_FC2580:
1321 	case TUNER_RTL2832_FC0012:
1322 	case TUNER_RTL2832_FC0013:
1323 	case TUNER_RTL2832_E4000:
1324 	case TUNER_RTL2832_R820T:
1325 	case TUNER_RTL2832_R828D:
1326 		pdata.clk = dev->rtl2832_platform_data.clk;
1327 		pdata.tuner = dev->tuner;
1328 		pdata.i2c_client = dev->i2c_client_demod;
1329 		pdata.bulk_read = dev->rtl2832_platform_data.bulk_read;
1330 		pdata.bulk_write = dev->rtl2832_platform_data.bulk_write;
1331 		pdata.update_bits = dev->rtl2832_platform_data.update_bits;
1332 		pdata.dvb_frontend = adap->fe[0];
1333 		pdata.dvb_usb_device = d;
1334 		pdata.v4l2_subdev = subdev;
1335 
1336 		request_module("%s", "rtl2832_sdr");
1337 		pdev = platform_device_register_data(&d->intf->dev,
1338 						     "rtl2832_sdr",
1339 						     PLATFORM_DEVID_AUTO,
1340 						     &pdata, sizeof(pdata));
1341 		if (IS_ERR(pdev) || pdev->dev.driver == NULL)
1342 			break;
1343 		dev->platform_device_sdr = pdev;
1344 		break;
1345 	default:
1346 		dev_dbg(&d->intf->dev, "no SDR for tuner=%d\n", dev->tuner);
1347 	}
1348 
1349 	return 0;
1350 err:
1351 	dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1352 	return ret;
1353 }
1354 
1355 static int rtl28xxu_tuner_attach(struct dvb_usb_adapter *adap)
1356 {
1357 	struct rtl28xxu_dev *dev = adap_to_priv(adap);
1358 
1359 	if (dev->chip_id == CHIP_ID_RTL2831U)
1360 		return rtl2831u_tuner_attach(adap);
1361 	else
1362 		return rtl2832u_tuner_attach(adap);
1363 }
1364 
1365 static int rtl28xxu_tuner_detach(struct dvb_usb_adapter *adap)
1366 {
1367 	struct dvb_usb_device *d = adap_to_d(adap);
1368 	struct rtl28xxu_dev *dev = d_to_priv(d);
1369 	struct i2c_client *client;
1370 	struct platform_device *pdev;
1371 
1372 	dev_dbg(&d->intf->dev, "\n");
1373 
1374 	/* remove platform SDR */
1375 	pdev = dev->platform_device_sdr;
1376 	if (pdev)
1377 		platform_device_unregister(pdev);
1378 
1379 	/* remove I2C tuner */
1380 	client = dev->i2c_client_tuner;
1381 	if (client) {
1382 		module_put(client->dev.driver->owner);
1383 		i2c_unregister_device(client);
1384 	}
1385 
1386 	return 0;
1387 }
1388 
1389 static int rtl28xxu_init(struct dvb_usb_device *d)
1390 {
1391 	int ret;
1392 	u8 val;
1393 
1394 	dev_dbg(&d->intf->dev, "\n");
1395 
1396 	/* init USB endpoints */
1397 	ret = rtl28xxu_rd_reg(d, USB_SYSCTL_0, &val);
1398 	if (ret)
1399 		goto err;
1400 
1401 	/* enable DMA and Full Packet Mode*/
1402 	val |= 0x09;
1403 	ret = rtl28xxu_wr_reg(d, USB_SYSCTL_0, val);
1404 	if (ret)
1405 		goto err;
1406 
1407 	/* set EPA maximum packet size to 0x0200 */
1408 	ret = rtl28xxu_wr_regs(d, USB_EPA_MAXPKT, "\x00\x02\x00\x00", 4);
1409 	if (ret)
1410 		goto err;
1411 
1412 	/* change EPA FIFO length */
1413 	ret = rtl28xxu_wr_regs(d, USB_EPA_FIFO_CFG, "\x14\x00\x00\x00", 4);
1414 	if (ret)
1415 		goto err;
1416 
1417 	return ret;
1418 err:
1419 	dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1420 	return ret;
1421 }
1422 
1423 static int rtl2831u_power_ctrl(struct dvb_usb_device *d, int onoff)
1424 {
1425 	int ret;
1426 	u8 gpio, sys0, epa_ctl[2];
1427 
1428 	dev_dbg(&d->intf->dev, "onoff=%d\n", onoff);
1429 
1430 	/* demod adc */
1431 	ret = rtl28xxu_rd_reg(d, SYS_SYS0, &sys0);
1432 	if (ret)
1433 		goto err;
1434 
1435 	/* tuner power, read GPIOs */
1436 	ret = rtl28xxu_rd_reg(d, SYS_GPIO_OUT_VAL, &gpio);
1437 	if (ret)
1438 		goto err;
1439 
1440 	dev_dbg(&d->intf->dev, "RD SYS0=%02x GPIO_OUT_VAL=%02x\n", sys0, gpio);
1441 
1442 	if (onoff) {
1443 		gpio |= 0x01; /* GPIO0 = 1 */
1444 		gpio &= (~0x10); /* GPIO4 = 0 */
1445 		gpio |= 0x04; /* GPIO2 = 1, LED on */
1446 		sys0 = sys0 & 0x0f;
1447 		sys0 |= 0xe0;
1448 		epa_ctl[0] = 0x00; /* clear stall */
1449 		epa_ctl[1] = 0x00; /* clear reset */
1450 	} else {
1451 		gpio &= (~0x01); /* GPIO0 = 0 */
1452 		gpio |= 0x10; /* GPIO4 = 1 */
1453 		gpio &= (~0x04); /* GPIO2 = 1, LED off */
1454 		sys0 = sys0 & (~0xc0);
1455 		epa_ctl[0] = 0x10; /* set stall */
1456 		epa_ctl[1] = 0x02; /* set reset */
1457 	}
1458 
1459 	dev_dbg(&d->intf->dev, "WR SYS0=%02x GPIO_OUT_VAL=%02x\n", sys0, gpio);
1460 
1461 	/* demod adc */
1462 	ret = rtl28xxu_wr_reg(d, SYS_SYS0, sys0);
1463 	if (ret)
1464 		goto err;
1465 
1466 	/* tuner power, write GPIOs */
1467 	ret = rtl28xxu_wr_reg(d, SYS_GPIO_OUT_VAL, gpio);
1468 	if (ret)
1469 		goto err;
1470 
1471 	/* streaming EP: stall & reset */
1472 	ret = rtl28xxu_wr_regs(d, USB_EPA_CTL, epa_ctl, 2);
1473 	if (ret)
1474 		goto err;
1475 
1476 	if (onoff)
1477 		usb_clear_halt(d->udev, usb_rcvbulkpipe(d->udev, 0x81));
1478 
1479 	return ret;
1480 err:
1481 	dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1482 	return ret;
1483 }
1484 
1485 static int rtl2832u_power_ctrl(struct dvb_usb_device *d, int onoff)
1486 {
1487 	int ret;
1488 
1489 	dev_dbg(&d->intf->dev, "onoff=%d\n", onoff);
1490 
1491 	if (onoff) {
1492 		/* GPIO3=1, GPIO4=0 */
1493 		ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x08, 0x18);
1494 		if (ret)
1495 			goto err;
1496 
1497 		/* suspend? */
1498 		ret = rtl28xxu_wr_reg_mask(d, SYS_DEMOD_CTL1, 0x00, 0x10);
1499 		if (ret)
1500 			goto err;
1501 
1502 		/* enable PLL */
1503 		ret = rtl28xxu_wr_reg_mask(d, SYS_DEMOD_CTL, 0x80, 0x80);
1504 		if (ret)
1505 			goto err;
1506 
1507 		/* disable reset */
1508 		ret = rtl28xxu_wr_reg_mask(d, SYS_DEMOD_CTL, 0x20, 0x20);
1509 		if (ret)
1510 			goto err;
1511 
1512 		/* streaming EP: clear stall & reset */
1513 		ret = rtl28xxu_wr_regs(d, USB_EPA_CTL, "\x00\x00", 2);
1514 		if (ret)
1515 			goto err;
1516 
1517 		ret = usb_clear_halt(d->udev, usb_rcvbulkpipe(d->udev, 0x81));
1518 		if (ret)
1519 			goto err;
1520 	} else {
1521 		/* GPIO4=1 */
1522 		ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x10, 0x10);
1523 		if (ret)
1524 			goto err;
1525 
1526 		/* disable PLL */
1527 		ret = rtl28xxu_wr_reg_mask(d, SYS_DEMOD_CTL, 0x00, 0x80);
1528 		if (ret)
1529 			goto err;
1530 
1531 		/* streaming EP: set stall & reset */
1532 		ret = rtl28xxu_wr_regs(d, USB_EPA_CTL, "\x10\x02", 2);
1533 		if (ret)
1534 			goto err;
1535 	}
1536 
1537 	return ret;
1538 err:
1539 	dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1540 	return ret;
1541 }
1542 
1543 static int rtl28xxu_power_ctrl(struct dvb_usb_device *d, int onoff)
1544 {
1545 	struct rtl28xxu_dev *dev = d_to_priv(d);
1546 
1547 	if (dev->chip_id == CHIP_ID_RTL2831U)
1548 		return rtl2831u_power_ctrl(d, onoff);
1549 	else
1550 		return rtl2832u_power_ctrl(d, onoff);
1551 }
1552 
1553 static int rtl28xxu_frontend_ctrl(struct dvb_frontend *fe, int onoff)
1554 {
1555 	struct dvb_usb_device *d = fe_to_d(fe);
1556 	struct rtl28xxu_dev *dev = fe_to_priv(fe);
1557 	struct rtl2832_platform_data *pdata = &dev->rtl2832_platform_data;
1558 	int ret;
1559 	u8 val;
1560 
1561 	dev_dbg(&d->intf->dev, "fe=%d onoff=%d\n", fe->id, onoff);
1562 
1563 	if (dev->chip_id == CHIP_ID_RTL2831U)
1564 		return 0;
1565 
1566 	/* control internal demod ADC */
1567 	if (fe->id == 0 && onoff)
1568 		val = 0x48; /* enable ADC */
1569 	else
1570 		val = 0x00; /* disable ADC */
1571 
1572 	ret = rtl28xxu_wr_reg_mask(d, SYS_DEMOD_CTL, val, 0x48);
1573 	if (ret)
1574 		goto err;
1575 
1576 	/* bypass slave demod TS through master demod */
1577 	if (fe->id == 1 && onoff) {
1578 		ret = pdata->enable_slave_ts(dev->i2c_client_demod);
1579 		if (ret)
1580 			goto err;
1581 	}
1582 
1583 	return 0;
1584 err:
1585 	dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1586 	return ret;
1587 }
1588 
1589 #if IS_ENABLED(CONFIG_RC_CORE)
1590 static int rtl2831u_rc_query(struct dvb_usb_device *d)
1591 {
1592 	int ret, i;
1593 	struct rtl28xxu_dev *dev = d->priv;
1594 	u8 buf[5];
1595 	u32 rc_code;
1596 	struct rtl28xxu_reg_val rc_nec_tab[] = {
1597 		{ 0x3033, 0x80 },
1598 		{ 0x3020, 0x43 },
1599 		{ 0x3021, 0x16 },
1600 		{ 0x3022, 0x16 },
1601 		{ 0x3023, 0x5a },
1602 		{ 0x3024, 0x2d },
1603 		{ 0x3025, 0x16 },
1604 		{ 0x3026, 0x01 },
1605 		{ 0x3028, 0xb0 },
1606 		{ 0x3029, 0x04 },
1607 		{ 0x302c, 0x88 },
1608 		{ 0x302e, 0x13 },
1609 		{ 0x3030, 0xdf },
1610 		{ 0x3031, 0x05 },
1611 	};
1612 
1613 	/* init remote controller */
1614 	if (!dev->rc_active) {
1615 		for (i = 0; i < ARRAY_SIZE(rc_nec_tab); i++) {
1616 			ret = rtl28xxu_wr_reg(d, rc_nec_tab[i].reg,
1617 					rc_nec_tab[i].val);
1618 			if (ret)
1619 				goto err;
1620 		}
1621 		dev->rc_active = true;
1622 	}
1623 
1624 	ret = rtl28xxu_rd_regs(d, SYS_IRRC_RP, buf, 5);
1625 	if (ret)
1626 		goto err;
1627 
1628 	if (buf[4] & 0x01) {
1629 		if (buf[2] == (u8) ~buf[3]) {
1630 			if (buf[0] == (u8) ~buf[1]) {
1631 				/* NEC standard (16 bit) */
1632 				rc_code = RC_SCANCODE_NEC(buf[0], buf[2]);
1633 			} else {
1634 				/* NEC extended (24 bit) */
1635 				rc_code = RC_SCANCODE_NECX(buf[0] << 8 | buf[1],
1636 							   buf[2]);
1637 			}
1638 		} else {
1639 			/* NEC full (32 bit) */
1640 			rc_code = RC_SCANCODE_NEC32(buf[0] << 24 | buf[1] << 16 |
1641 						    buf[2] << 8  | buf[3]);
1642 		}
1643 
1644 		rc_keydown(d->rc_dev, RC_TYPE_NEC, rc_code, 0);
1645 
1646 		ret = rtl28xxu_wr_reg(d, SYS_IRRC_SR, 1);
1647 		if (ret)
1648 			goto err;
1649 
1650 		/* repeated intentionally to avoid extra keypress */
1651 		ret = rtl28xxu_wr_reg(d, SYS_IRRC_SR, 1);
1652 		if (ret)
1653 			goto err;
1654 	}
1655 
1656 	return ret;
1657 err:
1658 	dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1659 	return ret;
1660 }
1661 
1662 static int rtl2831u_get_rc_config(struct dvb_usb_device *d,
1663 		struct dvb_usb_rc *rc)
1664 {
1665 	rc->map_name = RC_MAP_EMPTY;
1666 	rc->allowed_protos = RC_BIT_NEC;
1667 	rc->query = rtl2831u_rc_query;
1668 	rc->interval = 400;
1669 
1670 	return 0;
1671 }
1672 
1673 static int rtl2832u_rc_query(struct dvb_usb_device *d)
1674 {
1675 	int ret, i, len;
1676 	struct rtl28xxu_dev *dev = d->priv;
1677 	struct ir_raw_event ev;
1678 	u8 buf[128];
1679 	static const struct rtl28xxu_reg_val_mask refresh_tab[] = {
1680 		{IR_RX_IF,               0x03, 0xff},
1681 		{IR_RX_BUF_CTRL,         0x80, 0xff},
1682 		{IR_RX_CTRL,             0x80, 0xff},
1683 	};
1684 
1685 	/* init remote controller */
1686 	if (!dev->rc_active) {
1687 		static const struct rtl28xxu_reg_val_mask init_tab[] = {
1688 			{SYS_DEMOD_CTL1,         0x00, 0x04},
1689 			{SYS_DEMOD_CTL1,         0x00, 0x08},
1690 			{USB_CTRL,               0x20, 0x20},
1691 			{SYS_GPIO_DIR,           0x00, 0x08},
1692 			{SYS_GPIO_OUT_EN,        0x08, 0x08},
1693 			{SYS_GPIO_OUT_VAL,       0x08, 0x08},
1694 			{IR_MAX_DURATION0,       0xd0, 0xff},
1695 			{IR_MAX_DURATION1,       0x07, 0xff},
1696 			{IR_IDLE_LEN0,           0xc0, 0xff},
1697 			{IR_IDLE_LEN1,           0x00, 0xff},
1698 			{IR_GLITCH_LEN,          0x03, 0xff},
1699 			{IR_RX_CLK,              0x09, 0xff},
1700 			{IR_RX_CFG,              0x1c, 0xff},
1701 			{IR_MAX_H_TOL_LEN,       0x1e, 0xff},
1702 			{IR_MAX_L_TOL_LEN,       0x1e, 0xff},
1703 			{IR_RX_CTRL,             0x80, 0xff},
1704 		};
1705 
1706 		for (i = 0; i < ARRAY_SIZE(init_tab); i++) {
1707 			ret = rtl28xxu_wr_reg_mask(d, init_tab[i].reg,
1708 					init_tab[i].val, init_tab[i].mask);
1709 			if (ret)
1710 				goto err;
1711 		}
1712 
1713 		dev->rc_active = true;
1714 	}
1715 
1716 	ret = rtl28xxu_rd_reg(d, IR_RX_IF, &buf[0]);
1717 	if (ret)
1718 		goto err;
1719 
1720 	if (buf[0] != 0x83)
1721 		goto exit;
1722 
1723 	ret = rtl28xxu_rd_reg(d, IR_RX_BC, &buf[0]);
1724 	if (ret)
1725 		goto err;
1726 
1727 	len = buf[0];
1728 
1729 	/* read raw code from hw */
1730 	ret = rtl28xxu_rd_regs(d, IR_RX_BUF, buf, len);
1731 	if (ret)
1732 		goto err;
1733 
1734 	/* let hw receive new code */
1735 	for (i = 0; i < ARRAY_SIZE(refresh_tab); i++) {
1736 		ret = rtl28xxu_wr_reg_mask(d, refresh_tab[i].reg,
1737 				refresh_tab[i].val, refresh_tab[i].mask);
1738 		if (ret)
1739 			goto err;
1740 	}
1741 
1742 	/* pass data to Kernel IR decoder */
1743 	init_ir_raw_event(&ev);
1744 
1745 	for (i = 0; i < len; i++) {
1746 		ev.pulse = buf[i] >> 7;
1747 		ev.duration = 50800 * (buf[i] & 0x7f);
1748 		ir_raw_event_store_with_filter(d->rc_dev, &ev);
1749 	}
1750 
1751 	/* 'flush' ir_raw_event_store_with_filter() */
1752 	ir_raw_event_set_idle(d->rc_dev, true);
1753 	ir_raw_event_handle(d->rc_dev);
1754 exit:
1755 	return ret;
1756 err:
1757 	dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1758 	return ret;
1759 }
1760 
1761 static int rtl2832u_get_rc_config(struct dvb_usb_device *d,
1762 		struct dvb_usb_rc *rc)
1763 {
1764 	/* disable IR interrupts in order to avoid SDR sample loss */
1765 	if (rtl28xxu_disable_rc)
1766 		return rtl28xxu_wr_reg(d, IR_RX_IE, 0x00);
1767 
1768 	/* load empty to enable rc */
1769 	if (!rc->map_name)
1770 		rc->map_name = RC_MAP_EMPTY;
1771 	rc->allowed_protos = RC_BIT_ALL;
1772 	rc->driver_type = RC_DRIVER_IR_RAW;
1773 	rc->query = rtl2832u_rc_query;
1774 	rc->interval = 200;
1775 
1776 	return 0;
1777 }
1778 
1779 static int rtl28xxu_get_rc_config(struct dvb_usb_device *d,
1780 		struct dvb_usb_rc *rc)
1781 {
1782 	struct rtl28xxu_dev *dev = d_to_priv(d);
1783 
1784 	if (dev->chip_id == CHIP_ID_RTL2831U)
1785 		return rtl2831u_get_rc_config(d, rc);
1786 	else
1787 		return rtl2832u_get_rc_config(d, rc);
1788 }
1789 #else
1790 #define rtl28xxu_get_rc_config NULL
1791 #endif
1792 
1793 static int rtl28xxu_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
1794 {
1795 	struct rtl28xxu_dev *dev = adap_to_priv(adap);
1796 
1797 	if (dev->chip_id == CHIP_ID_RTL2831U) {
1798 		struct rtl2830_platform_data *pdata = &dev->rtl2830_platform_data;
1799 
1800 		return pdata->pid_filter_ctrl(adap->fe[0], onoff);
1801 	} else {
1802 		struct rtl2832_platform_data *pdata = &dev->rtl2832_platform_data;
1803 
1804 		return pdata->pid_filter_ctrl(adap->fe[0], onoff);
1805 	}
1806 }
1807 
1808 static int rtl28xxu_pid_filter(struct dvb_usb_adapter *adap, int index,
1809 			       u16 pid, int onoff)
1810 {
1811 	struct rtl28xxu_dev *dev = adap_to_priv(adap);
1812 
1813 	if (dev->chip_id == CHIP_ID_RTL2831U) {
1814 		struct rtl2830_platform_data *pdata = &dev->rtl2830_platform_data;
1815 
1816 		return pdata->pid_filter(adap->fe[0], index, pid, onoff);
1817 	} else {
1818 		struct rtl2832_platform_data *pdata = &dev->rtl2832_platform_data;
1819 
1820 		return pdata->pid_filter(adap->fe[0], index, pid, onoff);
1821 	}
1822 }
1823 
1824 static const struct dvb_usb_device_properties rtl28xxu_props = {
1825 	.driver_name = KBUILD_MODNAME,
1826 	.owner = THIS_MODULE,
1827 	.adapter_nr = adapter_nr,
1828 	.size_of_priv = sizeof(struct rtl28xxu_dev),
1829 
1830 	.identify_state = rtl28xxu_identify_state,
1831 	.power_ctrl = rtl28xxu_power_ctrl,
1832 	.frontend_ctrl = rtl28xxu_frontend_ctrl,
1833 	.i2c_algo = &rtl28xxu_i2c_algo,
1834 	.read_config = rtl28xxu_read_config,
1835 	.frontend_attach = rtl28xxu_frontend_attach,
1836 	.frontend_detach = rtl28xxu_frontend_detach,
1837 	.tuner_attach = rtl28xxu_tuner_attach,
1838 	.tuner_detach = rtl28xxu_tuner_detach,
1839 	.init = rtl28xxu_init,
1840 	.get_rc_config = rtl28xxu_get_rc_config,
1841 
1842 	.num_adapters = 1,
1843 	.adapter = {
1844 		{
1845 			.caps = DVB_USB_ADAP_HAS_PID_FILTER |
1846 				DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
1847 
1848 			.pid_filter_count = 32,
1849 			.pid_filter_ctrl = rtl28xxu_pid_filter_ctrl,
1850 			.pid_filter = rtl28xxu_pid_filter,
1851 
1852 			.stream = DVB_USB_STREAM_BULK(0x81, 6, 8 * 512),
1853 		},
1854 	},
1855 };
1856 
1857 static const struct usb_device_id rtl28xxu_id_table[] = {
1858 	/* RTL2831U devices: */
1859 	{ DVB_USB_DEVICE(USB_VID_REALTEK, USB_PID_REALTEK_RTL2831U,
1860 		&rtl28xxu_props, "Realtek RTL2831U reference design", NULL) },
1861 	{ DVB_USB_DEVICE(USB_VID_WIDEVIEW, USB_PID_FREECOM_DVBT,
1862 		&rtl28xxu_props, "Freecom USB2.0 DVB-T", NULL) },
1863 	{ DVB_USB_DEVICE(USB_VID_WIDEVIEW, USB_PID_FREECOM_DVBT_2,
1864 		&rtl28xxu_props, "Freecom USB2.0 DVB-T", NULL) },
1865 
1866 	/* RTL2832U devices: */
1867 	{ DVB_USB_DEVICE(USB_VID_REALTEK, 0x2832,
1868 		&rtl28xxu_props, "Realtek RTL2832U reference design", NULL) },
1869 	{ DVB_USB_DEVICE(USB_VID_REALTEK, 0x2838,
1870 		&rtl28xxu_props, "Realtek RTL2832U reference design", NULL) },
1871 	{ DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_CINERGY_T_STICK_BLACK_REV1,
1872 		&rtl28xxu_props, "TerraTec Cinergy T Stick Black", RC_MAP_TERRATEC_SLIM) },
1873 	{ DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_DELOCK_USB2_DVBT,
1874 		&rtl28xxu_props, "G-Tek Electronics Group Lifeview LV5TDLX DVB-T", NULL) },
1875 	{ DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_NOXON_DAB_STICK,
1876 		&rtl28xxu_props, "TerraTec NOXON DAB Stick", NULL) },
1877 	{ DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_NOXON_DAB_STICK_REV2,
1878 		&rtl28xxu_props, "TerraTec NOXON DAB Stick (rev 2)", NULL) },
1879 	{ DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_NOXON_DAB_STICK_REV3,
1880 		&rtl28xxu_props, "TerraTec NOXON DAB Stick (rev 3)", NULL) },
1881 	{ DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_TREKSTOR_TERRES_2_0,
1882 		&rtl28xxu_props, "Trekstor DVB-T Stick Terres 2.0", NULL) },
1883 	{ DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1101,
1884 		&rtl28xxu_props, "Dexatek DK DVB-T Dongle", NULL) },
1885 	{ DVB_USB_DEVICE(USB_VID_LEADTEK, 0x6680,
1886 		&rtl28xxu_props, "DigitalNow Quad DVB-T Receiver", NULL) },
1887 	{ DVB_USB_DEVICE(USB_VID_LEADTEK, USB_PID_WINFAST_DTV_DONGLE_MINID,
1888 		&rtl28xxu_props, "Leadtek Winfast DTV Dongle Mini D", NULL) },
1889 	{ DVB_USB_DEVICE(USB_VID_LEADTEK, USB_PID_WINFAST_DTV2000DS_PLUS,
1890 		&rtl28xxu_props, "Leadtek WinFast DTV2000DS Plus", RC_MAP_LEADTEK_Y04G0051) },
1891 	{ DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00d3,
1892 		&rtl28xxu_props, "TerraTec Cinergy T Stick RC (Rev. 3)", NULL) },
1893 	{ DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1102,
1894 		&rtl28xxu_props, "Dexatek DK mini DVB-T Dongle", NULL) },
1895 	{ DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00d7,
1896 		&rtl28xxu_props, "TerraTec Cinergy T Stick+", NULL) },
1897 	{ DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd3a8,
1898 		&rtl28xxu_props, "ASUS My Cinema-U3100Mini Plus V2", NULL) },
1899 	{ DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd393,
1900 		&rtl28xxu_props, "GIGABYTE U7300", NULL) },
1901 	{ DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1104,
1902 		&rtl28xxu_props, "MSI DIGIVOX Micro HD", NULL) },
1903 	{ DVB_USB_DEVICE(USB_VID_COMPRO, 0x0620,
1904 		&rtl28xxu_props, "Compro VideoMate U620F", NULL) },
1905 	{ DVB_USB_DEVICE(USB_VID_COMPRO, 0x0650,
1906 		&rtl28xxu_props, "Compro VideoMate U650F", NULL) },
1907 	{ DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd394,
1908 		&rtl28xxu_props, "MaxMedia HU394-T", NULL) },
1909 	{ DVB_USB_DEVICE(USB_VID_LEADTEK, 0x6a03,
1910 		&rtl28xxu_props, "Leadtek WinFast DTV Dongle mini", NULL) },
1911 	{ DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_CPYTO_REDI_PC50A,
1912 		&rtl28xxu_props, "Crypto ReDi PC 50 A", NULL) },
1913 	{ DVB_USB_DEVICE(USB_VID_KYE, 0x707f,
1914 		&rtl28xxu_props, "Genius TVGo DVB-T03", NULL) },
1915 	{ DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd395,
1916 		&rtl28xxu_props, "Peak DVB-T USB", NULL) },
1917 	{ DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_SVEON_STV20_RTL2832U,
1918 		&rtl28xxu_props, "Sveon STV20", NULL) },
1919 	{ DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_SVEON_STV21,
1920 		&rtl28xxu_props, "Sveon STV21", NULL) },
1921 	{ DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_SVEON_STV27,
1922 		&rtl28xxu_props, "Sveon STV27", NULL) },
1923 	{ DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_TURBOX_DTT_2000,
1924 		&rtl28xxu_props, "TURBO-X Pure TV Tuner DTT-2000", NULL) },
1925 
1926 	/* RTL2832P devices: */
1927 	{ DVB_USB_DEVICE(USB_VID_HANFTEK, 0x0131,
1928 		&rtl28xxu_props, "Astrometa DVB-T2", NULL) },
1929 	{ DVB_USB_DEVICE(0x5654, 0xca42,
1930 		&rtl28xxu_props, "GoTView MasterHD 3", NULL) },
1931 	{ }
1932 };
1933 MODULE_DEVICE_TABLE(usb, rtl28xxu_id_table);
1934 
1935 static struct usb_driver rtl28xxu_usb_driver = {
1936 	.name = KBUILD_MODNAME,
1937 	.id_table = rtl28xxu_id_table,
1938 	.probe = dvb_usbv2_probe,
1939 	.disconnect = dvb_usbv2_disconnect,
1940 	.suspend = dvb_usbv2_suspend,
1941 	.resume = dvb_usbv2_resume,
1942 	.reset_resume = dvb_usbv2_reset_resume,
1943 	.no_dynamic_id = 1,
1944 	.soft_unbind = 1,
1945 };
1946 
1947 module_usb_driver(rtl28xxu_usb_driver);
1948 
1949 MODULE_DESCRIPTION("Realtek RTL28xxU DVB USB driver");
1950 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
1951 MODULE_AUTHOR("Thomas Mair <thomas.mair86@googlemail.com>");
1952 MODULE_LICENSE("GPL");
1953