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