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[media] rtl28xxu: lower the rc poll time to mitigate i2c transfer errors
[deliverable/linux.git] / drivers / media / usb / dvb-usb-v2 / rtl28xxu.c
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) {
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 {
236 ret = -EINVAL;
237 }
238
239 err_mutex_unlock:
240 mutex_unlock(&d->i2c_mutex);
241
242 return ret ? ret : num;
243 }
244
245 static u32 rtl28xxu_i2c_func(struct i2c_adapter *adapter)
246 {
247 return I2C_FUNC_I2C;
248 }
249
250 static struct i2c_algorithm rtl28xxu_i2c_algo = {
251 .master_xfer = rtl28xxu_i2c_xfer,
252 .functionality = rtl28xxu_i2c_func,
253 };
254
255 static int rtl2831u_read_config(struct dvb_usb_device *d)
256 {
257 struct rtl28xxu_dev *dev = d_to_priv(d);
258 int ret;
259 u8 buf[1];
260 /* open RTL2831U/RTL2830 I2C gate */
261 struct rtl28xxu_req req_gate_open = {0x0120, 0x0011, 0x0001, "\x08"};
262 /* tuner probes */
263 struct rtl28xxu_req req_mt2060 = {0x00c0, CMD_I2C_RD, 1, buf};
264 struct rtl28xxu_req req_qt1010 = {0x0fc4, CMD_I2C_RD, 1, buf};
265
266 dev_dbg(&d->intf->dev, "\n");
267
268 /*
269 * RTL2831U GPIOs
270 * =========================================================
271 * GPIO0 | tuner#0 | 0 off | 1 on | MXL5005S (?)
272 * GPIO2 | LED | 0 off | 1 on |
273 * GPIO4 | tuner#1 | 0 on | 1 off | MT2060
274 */
275
276 /* GPIO direction */
277 ret = rtl28xxu_wr_reg(d, SYS_GPIO_DIR, 0x0a);
278 if (ret)
279 goto err;
280
281 /* enable as output GPIO0, GPIO2, GPIO4 */
282 ret = rtl28xxu_wr_reg(d, SYS_GPIO_OUT_EN, 0x15);
283 if (ret)
284 goto err;
285
286 /*
287 * Probe used tuner. We need to know used tuner before demod attach
288 * since there is some demod params needed to set according to tuner.
289 */
290
291 /* demod needs some time to wake up */
292 msleep(20);
293
294 dev->tuner_name = "NONE";
295
296 /* open demod I2C gate */
297 ret = rtl28xxu_ctrl_msg(d, &req_gate_open);
298 if (ret)
299 goto err;
300
301 /* check QT1010 ID(?) register; reg=0f val=2c */
302 ret = rtl28xxu_ctrl_msg(d, &req_qt1010);
303 if (ret == 0 && buf[0] == 0x2c) {
304 dev->tuner = TUNER_RTL2830_QT1010;
305 dev->tuner_name = "QT1010";
306 goto found;
307 }
308
309 /* open demod I2C gate */
310 ret = rtl28xxu_ctrl_msg(d, &req_gate_open);
311 if (ret)
312 goto err;
313
314 /* check MT2060 ID register; reg=00 val=63 */
315 ret = rtl28xxu_ctrl_msg(d, &req_mt2060);
316 if (ret == 0 && buf[0] == 0x63) {
317 dev->tuner = TUNER_RTL2830_MT2060;
318 dev->tuner_name = "MT2060";
319 goto found;
320 }
321
322 /* assume MXL5005S */
323 dev->tuner = TUNER_RTL2830_MXL5005S;
324 dev->tuner_name = "MXL5005S";
325 goto found;
326
327 found:
328 dev_dbg(&d->intf->dev, "tuner=%s\n", dev->tuner_name);
329
330 return 0;
331 err:
332 dev_dbg(&d->intf->dev, "failed=%d\n", ret);
333 return ret;
334 }
335
336 static int rtl2832u_read_config(struct dvb_usb_device *d)
337 {
338 struct rtl28xxu_dev *dev = d_to_priv(d);
339 int ret;
340 u8 buf[2];
341 /* open RTL2832U/RTL2832 I2C gate */
342 struct rtl28xxu_req req_gate_open = {0x0120, 0x0011, 0x0001, "\x18"};
343 /* close RTL2832U/RTL2832 I2C gate */
344 struct rtl28xxu_req req_gate_close = {0x0120, 0x0011, 0x0001, "\x10"};
345 /* tuner probes */
346 struct rtl28xxu_req req_fc0012 = {0x00c6, CMD_I2C_RD, 1, buf};
347 struct rtl28xxu_req req_fc0013 = {0x00c6, CMD_I2C_RD, 1, buf};
348 struct rtl28xxu_req req_mt2266 = {0x00c0, CMD_I2C_RD, 1, buf};
349 struct rtl28xxu_req req_fc2580 = {0x01ac, CMD_I2C_RD, 1, buf};
350 struct rtl28xxu_req req_mt2063 = {0x00c0, CMD_I2C_RD, 1, buf};
351 struct rtl28xxu_req req_max3543 = {0x00c0, CMD_I2C_RD, 1, buf};
352 struct rtl28xxu_req req_tua9001 = {0x7ec0, CMD_I2C_RD, 2, buf};
353 struct rtl28xxu_req req_mxl5007t = {0xd9c0, CMD_I2C_RD, 1, buf};
354 struct rtl28xxu_req req_e4000 = {0x02c8, CMD_I2C_RD, 1, buf};
355 struct rtl28xxu_req req_tda18272 = {0x00c0, CMD_I2C_RD, 2, buf};
356 struct rtl28xxu_req req_r820t = {0x0034, CMD_I2C_RD, 1, buf};
357 struct rtl28xxu_req req_r828d = {0x0074, CMD_I2C_RD, 1, buf};
358 struct rtl28xxu_req req_mn88472 = {0xff38, CMD_I2C_RD, 1, buf};
359 struct rtl28xxu_req req_mn88473 = {0xff38, CMD_I2C_RD, 1, buf};
360
361 dev_dbg(&d->intf->dev, "\n");
362
363 /* enable GPIO3 and GPIO6 as output */
364 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x40);
365 if (ret)
366 goto err;
367
368 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x48, 0x48);
369 if (ret)
370 goto err;
371
372 /*
373 * Probe used tuner. We need to know used tuner before demod attach
374 * since there is some demod params needed to set according to tuner.
375 */
376
377 /* open demod I2C gate */
378 ret = rtl28xxu_ctrl_msg(d, &req_gate_open);
379 if (ret)
380 goto err;
381
382 dev->tuner_name = "NONE";
383
384 /* check FC0012 ID register; reg=00 val=a1 */
385 ret = rtl28xxu_ctrl_msg(d, &req_fc0012);
386 if (ret == 0 && buf[0] == 0xa1) {
387 dev->tuner = TUNER_RTL2832_FC0012;
388 dev->tuner_name = "FC0012";
389 goto tuner_found;
390 }
391
392 /* check FC0013 ID register; reg=00 val=a3 */
393 ret = rtl28xxu_ctrl_msg(d, &req_fc0013);
394 if (ret == 0 && buf[0] == 0xa3) {
395 dev->tuner = TUNER_RTL2832_FC0013;
396 dev->tuner_name = "FC0013";
397 goto tuner_found;
398 }
399
400 /* check MT2266 ID register; reg=00 val=85 */
401 ret = rtl28xxu_ctrl_msg(d, &req_mt2266);
402 if (ret == 0 && buf[0] == 0x85) {
403 dev->tuner = TUNER_RTL2832_MT2266;
404 dev->tuner_name = "MT2266";
405 goto tuner_found;
406 }
407
408 /* check FC2580 ID register; reg=01 val=56 */
409 ret = rtl28xxu_ctrl_msg(d, &req_fc2580);
410 if (ret == 0 && buf[0] == 0x56) {
411 dev->tuner = TUNER_RTL2832_FC2580;
412 dev->tuner_name = "FC2580";
413 goto tuner_found;
414 }
415
416 /* check MT2063 ID register; reg=00 val=9e || 9c */
417 ret = rtl28xxu_ctrl_msg(d, &req_mt2063);
418 if (ret == 0 && (buf[0] == 0x9e || buf[0] == 0x9c)) {
419 dev->tuner = TUNER_RTL2832_MT2063;
420 dev->tuner_name = "MT2063";
421 goto tuner_found;
422 }
423
424 /* check MAX3543 ID register; reg=00 val=38 */
425 ret = rtl28xxu_ctrl_msg(d, &req_max3543);
426 if (ret == 0 && buf[0] == 0x38) {
427 dev->tuner = TUNER_RTL2832_MAX3543;
428 dev->tuner_name = "MAX3543";
429 goto tuner_found;
430 }
431
432 /* check TUA9001 ID register; reg=7e val=2328 */
433 ret = rtl28xxu_ctrl_msg(d, &req_tua9001);
434 if (ret == 0 && buf[0] == 0x23 && buf[1] == 0x28) {
435 dev->tuner = TUNER_RTL2832_TUA9001;
436 dev->tuner_name = "TUA9001";
437 goto tuner_found;
438 }
439
440 /* check MXL5007R ID register; reg=d9 val=14 */
441 ret = rtl28xxu_ctrl_msg(d, &req_mxl5007t);
442 if (ret == 0 && buf[0] == 0x14) {
443 dev->tuner = TUNER_RTL2832_MXL5007T;
444 dev->tuner_name = "MXL5007T";
445 goto tuner_found;
446 }
447
448 /* check E4000 ID register; reg=02 val=40 */
449 ret = rtl28xxu_ctrl_msg(d, &req_e4000);
450 if (ret == 0 && buf[0] == 0x40) {
451 dev->tuner = TUNER_RTL2832_E4000;
452 dev->tuner_name = "E4000";
453 goto tuner_found;
454 }
455
456 /* check TDA18272 ID register; reg=00 val=c760 */
457 ret = rtl28xxu_ctrl_msg(d, &req_tda18272);
458 if (ret == 0 && (buf[0] == 0xc7 || buf[1] == 0x60)) {
459 dev->tuner = TUNER_RTL2832_TDA18272;
460 dev->tuner_name = "TDA18272";
461 goto tuner_found;
462 }
463
464 /* check R820T ID register; reg=00 val=69 */
465 ret = rtl28xxu_ctrl_msg(d, &req_r820t);
466 if (ret == 0 && buf[0] == 0x69) {
467 dev->tuner = TUNER_RTL2832_R820T;
468 dev->tuner_name = "R820T";
469 goto tuner_found;
470 }
471
472 /* check R828D ID register; reg=00 val=69 */
473 ret = rtl28xxu_ctrl_msg(d, &req_r828d);
474 if (ret == 0 && buf[0] == 0x69) {
475 dev->tuner = TUNER_RTL2832_R828D;
476 dev->tuner_name = "R828D";
477 goto tuner_found;
478 }
479
480 tuner_found:
481 dev_dbg(&d->intf->dev, "tuner=%s\n", dev->tuner_name);
482
483 /* probe slave demod */
484 if (dev->tuner == TUNER_RTL2832_R828D) {
485 /* power on MN88472 demod on GPIO0 */
486 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x01, 0x01);
487 if (ret)
488 goto err;
489
490 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x01);
491 if (ret)
492 goto err;
493
494 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x01, 0x01);
495 if (ret)
496 goto err;
497
498 /* check MN88472 answers */
499 ret = rtl28xxu_ctrl_msg(d, &req_mn88472);
500 if (ret == 0 && buf[0] == 0x02) {
501 dev_dbg(&d->intf->dev, "MN88472 found\n");
502 dev->slave_demod = SLAVE_DEMOD_MN88472;
503 goto demod_found;
504 }
505
506 ret = rtl28xxu_ctrl_msg(d, &req_mn88473);
507 if (ret == 0 && buf[0] == 0x03) {
508 dev_dbg(&d->intf->dev, "MN88473 found\n");
509 dev->slave_demod = SLAVE_DEMOD_MN88473;
510 goto demod_found;
511 }
512 }
513
514 demod_found:
515 /* close demod I2C gate */
516 ret = rtl28xxu_ctrl_msg(d, &req_gate_close);
517 if (ret < 0)
518 goto err;
519
520 return 0;
521 err:
522 dev_dbg(&d->intf->dev, "failed=%d\n", ret);
523 return ret;
524 }
525
526 static int rtl28xxu_read_config(struct dvb_usb_device *d)
527 {
528 struct rtl28xxu_dev *dev = d_to_priv(d);
529
530 if (dev->chip_id == CHIP_ID_RTL2831U)
531 return rtl2831u_read_config(d);
532 else
533 return rtl2832u_read_config(d);
534 }
535
536 static int rtl28xxu_identify_state(struct dvb_usb_device *d, const char **name)
537 {
538 struct rtl28xxu_dev *dev = d_to_priv(d);
539 int ret;
540 struct rtl28xxu_req req_demod_i2c = {0x0020, CMD_I2C_DA_RD, 0, NULL};
541
542 dev_dbg(&d->intf->dev, "\n");
543
544 /*
545 * Detect chip type using I2C command that is not supported
546 * by old RTL2831U.
547 */
548 ret = rtl28xxu_ctrl_msg(d, &req_demod_i2c);
549 if (ret == -EPIPE) {
550 dev->chip_id = CHIP_ID_RTL2831U;
551 } else if (ret == 0) {
552 dev->chip_id = CHIP_ID_RTL2832U;
553 } else {
554 dev_err(&d->intf->dev, "chip type detection failed %d\n", ret);
555 goto err;
556 }
557 dev_dbg(&d->intf->dev, "chip_id=%u\n", dev->chip_id);
558
559 return WARM;
560 err:
561 dev_dbg(&d->intf->dev, "failed=%d\n", ret);
562 return ret;
563 }
564
565 static const struct rtl2830_platform_data rtl2830_mt2060_platform_data = {
566 .clk = 28800000,
567 .spec_inv = 1,
568 .vtop = 0x20,
569 .krf = 0x04,
570 .agc_targ_val = 0x2d,
571
572 };
573
574 static const struct rtl2830_platform_data rtl2830_qt1010_platform_data = {
575 .clk = 28800000,
576 .spec_inv = 1,
577 .vtop = 0x20,
578 .krf = 0x04,
579 .agc_targ_val = 0x2d,
580 };
581
582 static const struct rtl2830_platform_data rtl2830_mxl5005s_platform_data = {
583 .clk = 28800000,
584 .spec_inv = 0,
585 .vtop = 0x3f,
586 .krf = 0x04,
587 .agc_targ_val = 0x3e,
588 };
589
590 static int rtl2831u_frontend_attach(struct dvb_usb_adapter *adap)
591 {
592 struct dvb_usb_device *d = adap_to_d(adap);
593 struct rtl28xxu_dev *dev = d_to_priv(d);
594 struct rtl2830_platform_data *pdata = &dev->rtl2830_platform_data;
595 struct i2c_board_info board_info;
596 struct i2c_client *client;
597 int ret;
598
599 dev_dbg(&d->intf->dev, "\n");
600
601 switch (dev->tuner) {
602 case TUNER_RTL2830_QT1010:
603 *pdata = rtl2830_qt1010_platform_data;
604 break;
605 case TUNER_RTL2830_MT2060:
606 *pdata = rtl2830_mt2060_platform_data;
607 break;
608 case TUNER_RTL2830_MXL5005S:
609 *pdata = rtl2830_mxl5005s_platform_data;
610 break;
611 default:
612 dev_err(&d->intf->dev, "unknown tuner %s\n", dev->tuner_name);
613 ret = -ENODEV;
614 goto err;
615 }
616
617 /* attach demodulator */
618 memset(&board_info, 0, sizeof(board_info));
619 strlcpy(board_info.type, "rtl2830", I2C_NAME_SIZE);
620 board_info.addr = 0x10;
621 board_info.platform_data = pdata;
622 request_module("%s", board_info.type);
623 client = i2c_new_device(&d->i2c_adap, &board_info);
624 if (client == NULL || client->dev.driver == NULL) {
625 ret = -ENODEV;
626 goto err;
627 }
628
629 if (!try_module_get(client->dev.driver->owner)) {
630 i2c_unregister_device(client);
631 ret = -ENODEV;
632 goto err;
633 }
634
635 adap->fe[0] = pdata->get_dvb_frontend(client);
636 dev->demod_i2c_adapter = pdata->get_i2c_adapter(client);
637
638 dev->i2c_client_demod = client;
639
640 return 0;
641 err:
642 dev_dbg(&d->intf->dev, "failed=%d\n", ret);
643 return ret;
644 }
645
646 static const struct rtl2832_platform_data rtl2832_fc0012_platform_data = {
647 .clk = 28800000,
648 .tuner = TUNER_RTL2832_FC0012
649 };
650
651 static const struct rtl2832_platform_data rtl2832_fc0013_platform_data = {
652 .clk = 28800000,
653 .tuner = TUNER_RTL2832_FC0013
654 };
655
656 static const struct rtl2832_platform_data rtl2832_tua9001_platform_data = {
657 .clk = 28800000,
658 .tuner = TUNER_RTL2832_TUA9001,
659 };
660
661 static const struct rtl2832_platform_data rtl2832_e4000_platform_data = {
662 .clk = 28800000,
663 .tuner = TUNER_RTL2832_E4000,
664 };
665
666 static const struct rtl2832_platform_data rtl2832_r820t_platform_data = {
667 .clk = 28800000,
668 .tuner = TUNER_RTL2832_R820T,
669 };
670
671 static int rtl2832u_fc0012_tuner_callback(struct dvb_usb_device *d,
672 int cmd, int arg)
673 {
674 int ret;
675 u8 val;
676
677 dev_dbg(&d->intf->dev, "cmd=%d arg=%d\n", cmd, arg);
678
679 switch (cmd) {
680 case FC_FE_CALLBACK_VHF_ENABLE:
681 /* set output values */
682 ret = rtl28xxu_rd_reg(d, SYS_GPIO_OUT_VAL, &val);
683 if (ret)
684 goto err;
685
686 if (arg)
687 val &= 0xbf; /* set GPIO6 low */
688 else
689 val |= 0x40; /* set GPIO6 high */
690
691
692 ret = rtl28xxu_wr_reg(d, SYS_GPIO_OUT_VAL, val);
693 if (ret)
694 goto err;
695 break;
696 default:
697 ret = -EINVAL;
698 goto err;
699 }
700 return 0;
701 err:
702 dev_dbg(&d->intf->dev, "failed=%d\n", ret);
703 return ret;
704 }
705
706 static int rtl2832u_tua9001_tuner_callback(struct dvb_usb_device *d,
707 int cmd, int arg)
708 {
709 int ret;
710 u8 val;
711
712 dev_dbg(&d->intf->dev, "cmd=%d arg=%d\n", cmd, arg);
713
714 /*
715 * CEN always enabled by hardware wiring
716 * RESETN GPIO4
717 * RXEN GPIO1
718 */
719
720 switch (cmd) {
721 case TUA9001_CMD_RESETN:
722 if (arg)
723 val = (1 << 4);
724 else
725 val = (0 << 4);
726
727 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, val, 0x10);
728 if (ret)
729 goto err;
730 break;
731 case TUA9001_CMD_RXEN:
732 if (arg)
733 val = (1 << 1);
734 else
735 val = (0 << 1);
736
737 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, val, 0x02);
738 if (ret)
739 goto err;
740 break;
741 }
742
743 return 0;
744 err:
745 dev_dbg(&d->intf->dev, "failed=%d\n", ret);
746 return ret;
747 }
748
749 static int rtl2832u_frontend_callback(void *adapter_priv, int component,
750 int cmd, int arg)
751 {
752 struct i2c_adapter *adapter = adapter_priv;
753 struct device *parent = adapter->dev.parent;
754 struct i2c_adapter *parent_adapter;
755 struct dvb_usb_device *d;
756 struct rtl28xxu_dev *dev;
757
758 /*
759 * All tuners are connected to demod muxed I2C adapter. We have to
760 * resolve its parent adapter in order to get handle for this driver
761 * private data. That is a bit hackish solution, GPIO or direct driver
762 * callback would be better...
763 */
764 if (parent != NULL && parent->type == &i2c_adapter_type)
765 parent_adapter = to_i2c_adapter(parent);
766 else
767 return -EINVAL;
768
769 d = i2c_get_adapdata(parent_adapter);
770 dev = d->priv;
771
772 dev_dbg(&d->intf->dev, "component=%d cmd=%d arg=%d\n",
773 component, cmd, arg);
774
775 switch (component) {
776 case DVB_FRONTEND_COMPONENT_TUNER:
777 switch (dev->tuner) {
778 case TUNER_RTL2832_FC0012:
779 return rtl2832u_fc0012_tuner_callback(d, cmd, arg);
780 case TUNER_RTL2832_TUA9001:
781 return rtl2832u_tua9001_tuner_callback(d, cmd, arg);
782 }
783 default:
784 return -EINVAL;
785 }
786
787 return 0;
788 }
789
790 static int rtl2832u_frontend_attach(struct dvb_usb_adapter *adap)
791 {
792 struct dvb_usb_device *d = adap_to_d(adap);
793 struct rtl28xxu_dev *dev = d_to_priv(d);
794 struct rtl2832_platform_data *pdata = &dev->rtl2832_platform_data;
795 struct i2c_board_info board_info;
796 struct i2c_client *client;
797 int ret;
798
799 dev_dbg(&d->intf->dev, "\n");
800
801 switch (dev->tuner) {
802 case TUNER_RTL2832_FC0012:
803 *pdata = rtl2832_fc0012_platform_data;
804 break;
805 case TUNER_RTL2832_FC0013:
806 *pdata = rtl2832_fc0013_platform_data;
807 break;
808 case TUNER_RTL2832_FC2580:
809 /* FIXME: do not abuse fc0012 settings */
810 *pdata = rtl2832_fc0012_platform_data;
811 break;
812 case TUNER_RTL2832_TUA9001:
813 *pdata = rtl2832_tua9001_platform_data;
814 break;
815 case TUNER_RTL2832_E4000:
816 *pdata = rtl2832_e4000_platform_data;
817 break;
818 case TUNER_RTL2832_R820T:
819 case TUNER_RTL2832_R828D:
820 *pdata = rtl2832_r820t_platform_data;
821 break;
822 default:
823 dev_err(&d->intf->dev, "unknown tuner %s\n", dev->tuner_name);
824 ret = -ENODEV;
825 goto err;
826 }
827
828 /* attach demodulator */
829 memset(&board_info, 0, sizeof(board_info));
830 strlcpy(board_info.type, "rtl2832", I2C_NAME_SIZE);
831 board_info.addr = 0x10;
832 board_info.platform_data = pdata;
833 request_module("%s", board_info.type);
834 client = i2c_new_device(&d->i2c_adap, &board_info);
835 if (client == NULL || client->dev.driver == NULL) {
836 ret = -ENODEV;
837 goto err;
838 }
839
840 if (!try_module_get(client->dev.driver->owner)) {
841 i2c_unregister_device(client);
842 ret = -ENODEV;
843 goto err;
844 }
845
846 adap->fe[0] = pdata->get_dvb_frontend(client);
847 dev->demod_i2c_adapter = pdata->get_i2c_adapter(client);
848
849 dev->i2c_client_demod = client;
850
851 /* set fe callback */
852 adap->fe[0]->callback = rtl2832u_frontend_callback;
853
854 if (dev->slave_demod) {
855 struct i2c_board_info info = {};
856
857 /*
858 * We continue on reduced mode, without DVB-T2/C, using master
859 * demod, when slave demod fails.
860 */
861 ret = 0;
862
863 /* attach slave demodulator */
864 if (dev->slave_demod == SLAVE_DEMOD_MN88472) {
865 struct mn88472_config mn88472_config = {};
866
867 mn88472_config.fe = &adap->fe[1];
868 mn88472_config.i2c_wr_max = 22,
869 strlcpy(info.type, "mn88472", I2C_NAME_SIZE);
870 mn88472_config.xtal = 20500000;
871 info.addr = 0x18;
872 info.platform_data = &mn88472_config;
873 request_module(info.type);
874 client = i2c_new_device(&d->i2c_adap, &info);
875 if (client == NULL || client->dev.driver == NULL) {
876 dev->slave_demod = SLAVE_DEMOD_NONE;
877 goto err_slave_demod_failed;
878 }
879
880 if (!try_module_get(client->dev.driver->owner)) {
881 i2c_unregister_device(client);
882 dev->slave_demod = SLAVE_DEMOD_NONE;
883 goto err_slave_demod_failed;
884 }
885
886 dev->i2c_client_slave_demod = client;
887 } else {
888 struct mn88473_config mn88473_config = {};
889
890 mn88473_config.fe = &adap->fe[1];
891 mn88473_config.i2c_wr_max = 22,
892 strlcpy(info.type, "mn88473", I2C_NAME_SIZE);
893 info.addr = 0x18;
894 info.platform_data = &mn88473_config;
895 request_module(info.type);
896 client = i2c_new_device(&d->i2c_adap, &info);
897 if (client == NULL || client->dev.driver == NULL) {
898 dev->slave_demod = SLAVE_DEMOD_NONE;
899 goto err_slave_demod_failed;
900 }
901
902 if (!try_module_get(client->dev.driver->owner)) {
903 i2c_unregister_device(client);
904 dev->slave_demod = SLAVE_DEMOD_NONE;
905 goto err_slave_demod_failed;
906 }
907
908 dev->i2c_client_slave_demod = client;
909 }
910 }
911
912 return 0;
913 err_slave_demod_failed:
914 err:
915 dev_dbg(&d->intf->dev, "failed=%d\n", ret);
916 return ret;
917 }
918
919 static int rtl28xxu_frontend_attach(struct dvb_usb_adapter *adap)
920 {
921 struct rtl28xxu_dev *dev = adap_to_priv(adap);
922
923 if (dev->chip_id == CHIP_ID_RTL2831U)
924 return rtl2831u_frontend_attach(adap);
925 else
926 return rtl2832u_frontend_attach(adap);
927 }
928
929 static int rtl28xxu_frontend_detach(struct dvb_usb_adapter *adap)
930 {
931 struct dvb_usb_device *d = adap_to_d(adap);
932 struct rtl28xxu_dev *dev = d_to_priv(d);
933 struct i2c_client *client;
934
935 dev_dbg(&d->intf->dev, "\n");
936
937 /* remove I2C slave demod */
938 client = dev->i2c_client_slave_demod;
939 if (client) {
940 module_put(client->dev.driver->owner);
941 i2c_unregister_device(client);
942 }
943
944 /* remove I2C demod */
945 client = dev->i2c_client_demod;
946 if (client) {
947 module_put(client->dev.driver->owner);
948 i2c_unregister_device(client);
949 }
950
951 return 0;
952 }
953
954 static struct qt1010_config rtl28xxu_qt1010_config = {
955 .i2c_address = 0x62, /* 0xc4 */
956 };
957
958 static struct mt2060_config rtl28xxu_mt2060_config = {
959 .i2c_address = 0x60, /* 0xc0 */
960 .clock_out = 0,
961 };
962
963 static struct mxl5005s_config rtl28xxu_mxl5005s_config = {
964 .i2c_address = 0x63, /* 0xc6 */
965 .if_freq = IF_FREQ_4570000HZ,
966 .xtal_freq = CRYSTAL_FREQ_16000000HZ,
967 .agc_mode = MXL_SINGLE_AGC,
968 .tracking_filter = MXL_TF_C_H,
969 .rssi_enable = MXL_RSSI_ENABLE,
970 .cap_select = MXL_CAP_SEL_ENABLE,
971 .div_out = MXL_DIV_OUT_4,
972 .clock_out = MXL_CLOCK_OUT_DISABLE,
973 .output_load = MXL5005S_IF_OUTPUT_LOAD_200_OHM,
974 .top = MXL5005S_TOP_25P2,
975 .mod_mode = MXL_DIGITAL_MODE,
976 .if_mode = MXL_ZERO_IF,
977 .AgcMasterByte = 0x00,
978 };
979
980 static int rtl2831u_tuner_attach(struct dvb_usb_adapter *adap)
981 {
982 int ret;
983 struct dvb_usb_device *d = adap_to_d(adap);
984 struct rtl28xxu_dev *dev = d_to_priv(d);
985 struct dvb_frontend *fe;
986
987 dev_dbg(&d->intf->dev, "\n");
988
989 switch (dev->tuner) {
990 case TUNER_RTL2830_QT1010:
991 fe = dvb_attach(qt1010_attach, adap->fe[0],
992 dev->demod_i2c_adapter,
993 &rtl28xxu_qt1010_config);
994 break;
995 case TUNER_RTL2830_MT2060:
996 fe = dvb_attach(mt2060_attach, adap->fe[0],
997 dev->demod_i2c_adapter,
998 &rtl28xxu_mt2060_config, 1220);
999 break;
1000 case TUNER_RTL2830_MXL5005S:
1001 fe = dvb_attach(mxl5005s_attach, adap->fe[0],
1002 dev->demod_i2c_adapter,
1003 &rtl28xxu_mxl5005s_config);
1004 break;
1005 default:
1006 fe = NULL;
1007 dev_err(&d->intf->dev, "unknown tuner %d\n", dev->tuner);
1008 }
1009
1010 if (fe == NULL) {
1011 ret = -ENODEV;
1012 goto err;
1013 }
1014
1015 return 0;
1016 err:
1017 dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1018 return ret;
1019 }
1020
1021 static const struct fc2580_config rtl2832u_fc2580_config = {
1022 .i2c_addr = 0x56,
1023 .clock = 16384000,
1024 };
1025
1026 static struct tua9001_config rtl2832u_tua9001_config = {
1027 .i2c_addr = 0x60,
1028 };
1029
1030 static const struct fc0012_config rtl2832u_fc0012_config = {
1031 .i2c_address = 0x63, /* 0xc6 >> 1 */
1032 .xtal_freq = FC_XTAL_28_8_MHZ,
1033 };
1034
1035 static const struct r820t_config rtl2832u_r820t_config = {
1036 .i2c_addr = 0x1a,
1037 .xtal = 28800000,
1038 .max_i2c_msg_len = 2,
1039 .rafael_chip = CHIP_R820T,
1040 };
1041
1042 static const struct r820t_config rtl2832u_r828d_config = {
1043 .i2c_addr = 0x3a,
1044 .xtal = 16000000,
1045 .max_i2c_msg_len = 2,
1046 .rafael_chip = CHIP_R828D,
1047 };
1048
1049 static int rtl2832u_tuner_attach(struct dvb_usb_adapter *adap)
1050 {
1051 int ret;
1052 struct dvb_usb_device *d = adap_to_d(adap);
1053 struct rtl28xxu_dev *dev = d_to_priv(d);
1054 struct dvb_frontend *fe = NULL;
1055 struct i2c_board_info info;
1056 struct i2c_client *client;
1057 struct v4l2_subdev *subdev = NULL;
1058 struct platform_device *pdev;
1059 struct rtl2832_sdr_platform_data pdata;
1060
1061 dev_dbg(&d->intf->dev, "\n");
1062
1063 memset(&info, 0, sizeof(struct i2c_board_info));
1064 memset(&pdata, 0, sizeof(pdata));
1065
1066 switch (dev->tuner) {
1067 case TUNER_RTL2832_FC0012:
1068 fe = dvb_attach(fc0012_attach, adap->fe[0],
1069 dev->demod_i2c_adapter, &rtl2832u_fc0012_config);
1070
1071 /* since fc0012 includs reading the signal strength delegate
1072 * that to the tuner driver */
1073 adap->fe[0]->ops.read_signal_strength =
1074 adap->fe[0]->ops.tuner_ops.get_rf_strength;
1075 break;
1076 case TUNER_RTL2832_FC0013:
1077 fe = dvb_attach(fc0013_attach, adap->fe[0],
1078 dev->demod_i2c_adapter, 0xc6>>1, 0, FC_XTAL_28_8_MHZ);
1079
1080 /* fc0013 also supports signal strength reading */
1081 adap->fe[0]->ops.read_signal_strength =
1082 adap->fe[0]->ops.tuner_ops.get_rf_strength;
1083 break;
1084 case TUNER_RTL2832_E4000: {
1085 struct e4000_config e4000_config = {
1086 .fe = adap->fe[0],
1087 .clock = 28800000,
1088 };
1089
1090 strlcpy(info.type, "e4000", I2C_NAME_SIZE);
1091 info.addr = 0x64;
1092 info.platform_data = &e4000_config;
1093
1094 request_module(info.type);
1095 client = i2c_new_device(dev->demod_i2c_adapter, &info);
1096 if (client == NULL || client->dev.driver == NULL)
1097 break;
1098
1099 if (!try_module_get(client->dev.driver->owner)) {
1100 i2c_unregister_device(client);
1101 break;
1102 }
1103
1104 dev->i2c_client_tuner = client;
1105 subdev = i2c_get_clientdata(client);
1106 }
1107 break;
1108 case TUNER_RTL2832_FC2580:
1109 fe = dvb_attach(fc2580_attach, adap->fe[0],
1110 dev->demod_i2c_adapter,
1111 &rtl2832u_fc2580_config);
1112 break;
1113 case TUNER_RTL2832_TUA9001:
1114 /* enable GPIO1 and GPIO4 as output */
1115 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x12);
1116 if (ret)
1117 goto err;
1118
1119 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x12, 0x12);
1120 if (ret)
1121 goto err;
1122
1123 fe = dvb_attach(tua9001_attach, adap->fe[0],
1124 dev->demod_i2c_adapter,
1125 &rtl2832u_tua9001_config);
1126 break;
1127 case TUNER_RTL2832_R820T:
1128 fe = dvb_attach(r820t_attach, adap->fe[0],
1129 dev->demod_i2c_adapter,
1130 &rtl2832u_r820t_config);
1131
1132 /* Use tuner to get the signal strength */
1133 adap->fe[0]->ops.read_signal_strength =
1134 adap->fe[0]->ops.tuner_ops.get_rf_strength;
1135 break;
1136 case TUNER_RTL2832_R828D:
1137 fe = dvb_attach(r820t_attach, adap->fe[0],
1138 dev->demod_i2c_adapter,
1139 &rtl2832u_r828d_config);
1140 adap->fe[0]->ops.read_signal_strength =
1141 adap->fe[0]->ops.tuner_ops.get_rf_strength;
1142
1143 if (adap->fe[1]) {
1144 fe = dvb_attach(r820t_attach, adap->fe[1],
1145 dev->demod_i2c_adapter,
1146 &rtl2832u_r828d_config);
1147 adap->fe[1]->ops.read_signal_strength =
1148 adap->fe[1]->ops.tuner_ops.get_rf_strength;
1149 }
1150 break;
1151 default:
1152 dev_err(&d->intf->dev, "unknown tuner %d\n", dev->tuner);
1153 }
1154 if (fe == NULL && dev->i2c_client_tuner == NULL) {
1155 ret = -ENODEV;
1156 goto err;
1157 }
1158
1159 /* register SDR */
1160 switch (dev->tuner) {
1161 case TUNER_RTL2832_FC0012:
1162 case TUNER_RTL2832_FC0013:
1163 case TUNER_RTL2832_E4000:
1164 case TUNER_RTL2832_R820T:
1165 case TUNER_RTL2832_R828D:
1166 pdata.clk = dev->rtl2832_platform_data.clk;
1167 pdata.tuner = dev->tuner;
1168 pdata.i2c_client = dev->i2c_client_demod;
1169 pdata.bulk_read = dev->rtl2832_platform_data.bulk_read;
1170 pdata.bulk_write = dev->rtl2832_platform_data.bulk_write;
1171 pdata.update_bits = dev->rtl2832_platform_data.update_bits;
1172 pdata.dvb_frontend = adap->fe[0];
1173 pdata.dvb_usb_device = d;
1174 pdata.v4l2_subdev = subdev;
1175
1176 request_module("%s", "rtl2832_sdr");
1177 pdev = platform_device_register_data(&d->intf->dev,
1178 "rtl2832_sdr",
1179 PLATFORM_DEVID_AUTO,
1180 &pdata, sizeof(pdata));
1181 if (pdev == NULL || pdev->dev.driver == NULL)
1182 break;
1183 dev->platform_device_sdr = pdev;
1184 break;
1185 default:
1186 dev_dbg(&d->intf->dev, "no SDR for tuner=%d\n", dev->tuner);
1187 }
1188
1189 return 0;
1190 err:
1191 dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1192 return ret;
1193 }
1194
1195 static int rtl28xxu_tuner_attach(struct dvb_usb_adapter *adap)
1196 {
1197 struct rtl28xxu_dev *dev = adap_to_priv(adap);
1198
1199 if (dev->chip_id == CHIP_ID_RTL2831U)
1200 return rtl2831u_tuner_attach(adap);
1201 else
1202 return rtl2832u_tuner_attach(adap);
1203 }
1204
1205 static int rtl28xxu_tuner_detach(struct dvb_usb_adapter *adap)
1206 {
1207 struct dvb_usb_device *d = adap_to_d(adap);
1208 struct rtl28xxu_dev *dev = d_to_priv(d);
1209 struct i2c_client *client;
1210 struct platform_device *pdev;
1211
1212 dev_dbg(&d->intf->dev, "\n");
1213
1214 /* remove platform SDR */
1215 pdev = dev->platform_device_sdr;
1216 if (pdev)
1217 platform_device_unregister(pdev);
1218
1219 /* remove I2C tuner */
1220 client = dev->i2c_client_tuner;
1221 if (client) {
1222 module_put(client->dev.driver->owner);
1223 i2c_unregister_device(client);
1224 }
1225
1226 return 0;
1227 }
1228
1229 static int rtl28xxu_init(struct dvb_usb_device *d)
1230 {
1231 int ret;
1232 u8 val;
1233
1234 dev_dbg(&d->intf->dev, "\n");
1235
1236 /* init USB endpoints */
1237 ret = rtl28xxu_rd_reg(d, USB_SYSCTL_0, &val);
1238 if (ret)
1239 goto err;
1240
1241 /* enable DMA and Full Packet Mode*/
1242 val |= 0x09;
1243 ret = rtl28xxu_wr_reg(d, USB_SYSCTL_0, val);
1244 if (ret)
1245 goto err;
1246
1247 /* set EPA maximum packet size to 0x0200 */
1248 ret = rtl28xxu_wr_regs(d, USB_EPA_MAXPKT, "\x00\x02\x00\x00", 4);
1249 if (ret)
1250 goto err;
1251
1252 /* change EPA FIFO length */
1253 ret = rtl28xxu_wr_regs(d, USB_EPA_FIFO_CFG, "\x14\x00\x00\x00", 4);
1254 if (ret)
1255 goto err;
1256
1257 return ret;
1258 err:
1259 dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1260 return ret;
1261 }
1262
1263 static int rtl2831u_power_ctrl(struct dvb_usb_device *d, int onoff)
1264 {
1265 int ret;
1266 u8 gpio, sys0, epa_ctl[2];
1267
1268 dev_dbg(&d->intf->dev, "onoff=%d\n", onoff);
1269
1270 /* demod adc */
1271 ret = rtl28xxu_rd_reg(d, SYS_SYS0, &sys0);
1272 if (ret)
1273 goto err;
1274
1275 /* tuner power, read GPIOs */
1276 ret = rtl28xxu_rd_reg(d, SYS_GPIO_OUT_VAL, &gpio);
1277 if (ret)
1278 goto err;
1279
1280 dev_dbg(&d->intf->dev, "RD SYS0=%02x GPIO_OUT_VAL=%02x\n", sys0, gpio);
1281
1282 if (onoff) {
1283 gpio |= 0x01; /* GPIO0 = 1 */
1284 gpio &= (~0x10); /* GPIO4 = 0 */
1285 gpio |= 0x04; /* GPIO2 = 1, LED on */
1286 sys0 = sys0 & 0x0f;
1287 sys0 |= 0xe0;
1288 epa_ctl[0] = 0x00; /* clear stall */
1289 epa_ctl[1] = 0x00; /* clear reset */
1290 } else {
1291 gpio &= (~0x01); /* GPIO0 = 0 */
1292 gpio |= 0x10; /* GPIO4 = 1 */
1293 gpio &= (~0x04); /* GPIO2 = 1, LED off */
1294 sys0 = sys0 & (~0xc0);
1295 epa_ctl[0] = 0x10; /* set stall */
1296 epa_ctl[1] = 0x02; /* set reset */
1297 }
1298
1299 dev_dbg(&d->intf->dev, "WR SYS0=%02x GPIO_OUT_VAL=%02x\n", sys0, gpio);
1300
1301 /* demod adc */
1302 ret = rtl28xxu_wr_reg(d, SYS_SYS0, sys0);
1303 if (ret)
1304 goto err;
1305
1306 /* tuner power, write GPIOs */
1307 ret = rtl28xxu_wr_reg(d, SYS_GPIO_OUT_VAL, gpio);
1308 if (ret)
1309 goto err;
1310
1311 /* streaming EP: stall & reset */
1312 ret = rtl28xxu_wr_regs(d, USB_EPA_CTL, epa_ctl, 2);
1313 if (ret)
1314 goto err;
1315
1316 if (onoff)
1317 usb_clear_halt(d->udev, usb_rcvbulkpipe(d->udev, 0x81));
1318
1319 return ret;
1320 err:
1321 dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1322 return ret;
1323 }
1324
1325 static int rtl2832u_power_ctrl(struct dvb_usb_device *d, int onoff)
1326 {
1327 int ret;
1328
1329 dev_dbg(&d->intf->dev, "onoff=%d\n", onoff);
1330
1331 if (onoff) {
1332 /* GPIO3=1, GPIO4=0 */
1333 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x08, 0x18);
1334 if (ret)
1335 goto err;
1336
1337 /* suspend? */
1338 ret = rtl28xxu_wr_reg_mask(d, SYS_DEMOD_CTL1, 0x00, 0x10);
1339 if (ret)
1340 goto err;
1341
1342 /* enable PLL */
1343 ret = rtl28xxu_wr_reg_mask(d, SYS_DEMOD_CTL, 0x80, 0x80);
1344 if (ret)
1345 goto err;
1346
1347 /* disable reset */
1348 ret = rtl28xxu_wr_reg_mask(d, SYS_DEMOD_CTL, 0x20, 0x20);
1349 if (ret)
1350 goto err;
1351
1352 /* streaming EP: clear stall & reset */
1353 ret = rtl28xxu_wr_regs(d, USB_EPA_CTL, "\x00\x00", 2);
1354 if (ret)
1355 goto err;
1356
1357 ret = usb_clear_halt(d->udev, usb_rcvbulkpipe(d->udev, 0x81));
1358 if (ret)
1359 goto err;
1360 } else {
1361 /* GPIO4=1 */
1362 ret = rtl28xxu_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x10, 0x10);
1363 if (ret)
1364 goto err;
1365
1366 /* disable PLL */
1367 ret = rtl28xxu_wr_reg_mask(d, SYS_DEMOD_CTL, 0x00, 0x80);
1368 if (ret)
1369 goto err;
1370
1371 /* streaming EP: set stall & reset */
1372 ret = rtl28xxu_wr_regs(d, USB_EPA_CTL, "\x10\x02", 2);
1373 if (ret)
1374 goto err;
1375 }
1376
1377 return ret;
1378 err:
1379 dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1380 return ret;
1381 }
1382
1383 static int rtl28xxu_power_ctrl(struct dvb_usb_device *d, int onoff)
1384 {
1385 struct rtl28xxu_dev *dev = d_to_priv(d);
1386
1387 if (dev->chip_id == CHIP_ID_RTL2831U)
1388 return rtl2831u_power_ctrl(d, onoff);
1389 else
1390 return rtl2832u_power_ctrl(d, onoff);
1391 }
1392
1393 static int rtl28xxu_frontend_ctrl(struct dvb_frontend *fe, int onoff)
1394 {
1395 struct dvb_usb_device *d = fe_to_d(fe);
1396 struct rtl28xxu_dev *dev = fe_to_priv(fe);
1397 struct rtl2832_platform_data *pdata = &dev->rtl2832_platform_data;
1398 int ret;
1399 u8 val;
1400
1401 dev_dbg(&d->intf->dev, "fe=%d onoff=%d\n", fe->id, onoff);
1402
1403 if (dev->chip_id == CHIP_ID_RTL2831U)
1404 return 0;
1405
1406 /* control internal demod ADC */
1407 if (fe->id == 0 && onoff)
1408 val = 0x48; /* enable ADC */
1409 else
1410 val = 0x00; /* disable ADC */
1411
1412 ret = rtl28xxu_wr_reg_mask(d, SYS_DEMOD_CTL, val, 0x48);
1413 if (ret)
1414 goto err;
1415
1416 /* bypass slave demod TS through master demod */
1417 if (fe->id == 1 && onoff) {
1418 ret = pdata->enable_slave_ts(dev->i2c_client_demod);
1419 if (ret)
1420 goto err;
1421 }
1422
1423 return 0;
1424 err:
1425 dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1426 return ret;
1427 }
1428
1429 #if IS_ENABLED(CONFIG_RC_CORE)
1430 static int rtl2831u_rc_query(struct dvb_usb_device *d)
1431 {
1432 int ret, i;
1433 struct rtl28xxu_dev *dev = d->priv;
1434 u8 buf[5];
1435 u32 rc_code;
1436 struct rtl28xxu_reg_val rc_nec_tab[] = {
1437 { 0x3033, 0x80 },
1438 { 0x3020, 0x43 },
1439 { 0x3021, 0x16 },
1440 { 0x3022, 0x16 },
1441 { 0x3023, 0x5a },
1442 { 0x3024, 0x2d },
1443 { 0x3025, 0x16 },
1444 { 0x3026, 0x01 },
1445 { 0x3028, 0xb0 },
1446 { 0x3029, 0x04 },
1447 { 0x302c, 0x88 },
1448 { 0x302e, 0x13 },
1449 { 0x3030, 0xdf },
1450 { 0x3031, 0x05 },
1451 };
1452
1453 /* init remote controller */
1454 if (!dev->rc_active) {
1455 for (i = 0; i < ARRAY_SIZE(rc_nec_tab); i++) {
1456 ret = rtl28xxu_wr_reg(d, rc_nec_tab[i].reg,
1457 rc_nec_tab[i].val);
1458 if (ret)
1459 goto err;
1460 }
1461 dev->rc_active = true;
1462 }
1463
1464 ret = rtl28xxu_rd_regs(d, SYS_IRRC_RP, buf, 5);
1465 if (ret)
1466 goto err;
1467
1468 if (buf[4] & 0x01) {
1469 if (buf[2] == (u8) ~buf[3]) {
1470 if (buf[0] == (u8) ~buf[1]) {
1471 /* NEC standard (16 bit) */
1472 rc_code = RC_SCANCODE_NEC(buf[0], buf[2]);
1473 } else {
1474 /* NEC extended (24 bit) */
1475 rc_code = RC_SCANCODE_NECX(buf[0] << 8 | buf[1],
1476 buf[2]);
1477 }
1478 } else {
1479 /* NEC full (32 bit) */
1480 rc_code = RC_SCANCODE_NEC32(buf[0] << 24 | buf[1] << 16 |
1481 buf[2] << 8 | buf[3]);
1482 }
1483
1484 rc_keydown(d->rc_dev, RC_TYPE_NEC, rc_code, 0);
1485
1486 ret = rtl28xxu_wr_reg(d, SYS_IRRC_SR, 1);
1487 if (ret)
1488 goto err;
1489
1490 /* repeated intentionally to avoid extra keypress */
1491 ret = rtl28xxu_wr_reg(d, SYS_IRRC_SR, 1);
1492 if (ret)
1493 goto err;
1494 }
1495
1496 return ret;
1497 err:
1498 dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1499 return ret;
1500 }
1501
1502 static int rtl2831u_get_rc_config(struct dvb_usb_device *d,
1503 struct dvb_usb_rc *rc)
1504 {
1505 rc->map_name = RC_MAP_EMPTY;
1506 rc->allowed_protos = RC_BIT_NEC;
1507 rc->query = rtl2831u_rc_query;
1508 rc->interval = 400;
1509
1510 return 0;
1511 }
1512
1513 static int rtl2832u_rc_query(struct dvb_usb_device *d)
1514 {
1515 int ret, i, len;
1516 struct rtl28xxu_dev *dev = d->priv;
1517 struct ir_raw_event ev;
1518 u8 buf[128];
1519 static const struct rtl28xxu_reg_val_mask refresh_tab[] = {
1520 {IR_RX_IF, 0x03, 0xff},
1521 {IR_RX_BUF_CTRL, 0x80, 0xff},
1522 {IR_RX_CTRL, 0x80, 0xff},
1523 };
1524
1525 /* init remote controller */
1526 if (!dev->rc_active) {
1527 static const struct rtl28xxu_reg_val_mask init_tab[] = {
1528 {SYS_DEMOD_CTL1, 0x00, 0x04},
1529 {SYS_DEMOD_CTL1, 0x00, 0x08},
1530 {USB_CTRL, 0x20, 0x20},
1531 {SYS_GPIO_DIR, 0x00, 0x08},
1532 {SYS_GPIO_OUT_EN, 0x08, 0x08},
1533 {SYS_GPIO_OUT_VAL, 0x08, 0x08},
1534 {IR_MAX_DURATION0, 0xd0, 0xff},
1535 {IR_MAX_DURATION1, 0x07, 0xff},
1536 {IR_IDLE_LEN0, 0xc0, 0xff},
1537 {IR_IDLE_LEN1, 0x00, 0xff},
1538 {IR_GLITCH_LEN, 0x03, 0xff},
1539 {IR_RX_CLK, 0x09, 0xff},
1540 {IR_RX_CFG, 0x1c, 0xff},
1541 {IR_MAX_H_TOL_LEN, 0x1e, 0xff},
1542 {IR_MAX_L_TOL_LEN, 0x1e, 0xff},
1543 {IR_RX_CTRL, 0x80, 0xff},
1544 };
1545
1546 for (i = 0; i < ARRAY_SIZE(init_tab); i++) {
1547 ret = rtl28xxu_wr_reg_mask(d, init_tab[i].reg,
1548 init_tab[i].val, init_tab[i].mask);
1549 if (ret)
1550 goto err;
1551 }
1552
1553 dev->rc_active = true;
1554 }
1555
1556 ret = rtl28xxu_rd_reg(d, IR_RX_IF, &buf[0]);
1557 if (ret)
1558 goto err;
1559
1560 if (buf[0] != 0x83)
1561 goto exit;
1562
1563 ret = rtl28xxu_rd_reg(d, IR_RX_BC, &buf[0]);
1564 if (ret)
1565 goto err;
1566
1567 len = buf[0];
1568
1569 /* read raw code from hw */
1570 ret = rtl28xxu_rd_regs(d, IR_RX_BUF, buf, len);
1571 if (ret)
1572 goto err;
1573
1574 /* let hw receive new code */
1575 for (i = 0; i < ARRAY_SIZE(refresh_tab); i++) {
1576 ret = rtl28xxu_wr_reg_mask(d, refresh_tab[i].reg,
1577 refresh_tab[i].val, refresh_tab[i].mask);
1578 if (ret)
1579 goto err;
1580 }
1581
1582 /* pass data to Kernel IR decoder */
1583 init_ir_raw_event(&ev);
1584
1585 for (i = 0; i < len; i++) {
1586 ev.pulse = buf[i] >> 7;
1587 ev.duration = 50800 * (buf[i] & 0x7f);
1588 ir_raw_event_store_with_filter(d->rc_dev, &ev);
1589 }
1590
1591 /* 'flush' ir_raw_event_store_with_filter() */
1592 ir_raw_event_set_idle(d->rc_dev, true);
1593 ir_raw_event_handle(d->rc_dev);
1594 exit:
1595 return ret;
1596 err:
1597 dev_dbg(&d->intf->dev, "failed=%d\n", ret);
1598 return ret;
1599 }
1600
1601 static int rtl2832u_get_rc_config(struct dvb_usb_device *d,
1602 struct dvb_usb_rc *rc)
1603 {
1604 /* disable IR interrupts in order to avoid SDR sample loss */
1605 if (rtl28xxu_disable_rc)
1606 return rtl28xxu_wr_reg(d, IR_RX_IE, 0x00);
1607
1608 /* load empty to enable rc */
1609 if (!rc->map_name)
1610 rc->map_name = RC_MAP_EMPTY;
1611 rc->allowed_protos = RC_BIT_ALL;
1612 rc->driver_type = RC_DRIVER_IR_RAW;
1613 rc->query = rtl2832u_rc_query;
1614 rc->interval = 200;
1615
1616 return 0;
1617 }
1618
1619 static int rtl28xxu_get_rc_config(struct dvb_usb_device *d,
1620 struct dvb_usb_rc *rc)
1621 {
1622 struct rtl28xxu_dev *dev = d_to_priv(d);
1623
1624 if (dev->chip_id == CHIP_ID_RTL2831U)
1625 return rtl2831u_get_rc_config(d, rc);
1626 else
1627 return rtl2832u_get_rc_config(d, rc);
1628 }
1629 #else
1630 #define rtl28xxu_get_rc_config NULL
1631 #endif
1632
1633 static int rtl28xxu_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
1634 {
1635 struct rtl28xxu_dev *dev = adap_to_priv(adap);
1636
1637 if (dev->chip_id == CHIP_ID_RTL2831U) {
1638 struct rtl2830_platform_data *pdata = &dev->rtl2830_platform_data;
1639
1640 return pdata->pid_filter_ctrl(adap->fe[0], onoff);
1641 } else {
1642 struct rtl2832_platform_data *pdata = &dev->rtl2832_platform_data;
1643
1644 return pdata->pid_filter_ctrl(adap->fe[0], onoff);
1645 }
1646 }
1647
1648 static int rtl28xxu_pid_filter(struct dvb_usb_adapter *adap, int index,
1649 u16 pid, int onoff)
1650 {
1651 struct rtl28xxu_dev *dev = adap_to_priv(adap);
1652
1653 if (dev->chip_id == CHIP_ID_RTL2831U) {
1654 struct rtl2830_platform_data *pdata = &dev->rtl2830_platform_data;
1655
1656 return pdata->pid_filter(adap->fe[0], index, pid, onoff);
1657 } else {
1658 struct rtl2832_platform_data *pdata = &dev->rtl2832_platform_data;
1659
1660 return pdata->pid_filter(adap->fe[0], index, pid, onoff);
1661 }
1662 }
1663
1664 static const struct dvb_usb_device_properties rtl28xxu_props = {
1665 .driver_name = KBUILD_MODNAME,
1666 .owner = THIS_MODULE,
1667 .adapter_nr = adapter_nr,
1668 .size_of_priv = sizeof(struct rtl28xxu_dev),
1669
1670 .identify_state = rtl28xxu_identify_state,
1671 .power_ctrl = rtl28xxu_power_ctrl,
1672 .frontend_ctrl = rtl28xxu_frontend_ctrl,
1673 .i2c_algo = &rtl28xxu_i2c_algo,
1674 .read_config = rtl28xxu_read_config,
1675 .frontend_attach = rtl28xxu_frontend_attach,
1676 .frontend_detach = rtl28xxu_frontend_detach,
1677 .tuner_attach = rtl28xxu_tuner_attach,
1678 .tuner_detach = rtl28xxu_tuner_detach,
1679 .init = rtl28xxu_init,
1680 .get_rc_config = rtl28xxu_get_rc_config,
1681
1682 .num_adapters = 1,
1683 .adapter = {
1684 {
1685 .caps = DVB_USB_ADAP_HAS_PID_FILTER |
1686 DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
1687
1688 .pid_filter_count = 32,
1689 .pid_filter_ctrl = rtl28xxu_pid_filter_ctrl,
1690 .pid_filter = rtl28xxu_pid_filter,
1691
1692 .stream = DVB_USB_STREAM_BULK(0x81, 6, 8 * 512),
1693 },
1694 },
1695 };
1696
1697 static const struct usb_device_id rtl28xxu_id_table[] = {
1698 /* RTL2831U devices: */
1699 { DVB_USB_DEVICE(USB_VID_REALTEK, USB_PID_REALTEK_RTL2831U,
1700 &rtl28xxu_props, "Realtek RTL2831U reference design", NULL) },
1701 { DVB_USB_DEVICE(USB_VID_WIDEVIEW, USB_PID_FREECOM_DVBT,
1702 &rtl28xxu_props, "Freecom USB2.0 DVB-T", NULL) },
1703 { DVB_USB_DEVICE(USB_VID_WIDEVIEW, USB_PID_FREECOM_DVBT_2,
1704 &rtl28xxu_props, "Freecom USB2.0 DVB-T", NULL) },
1705
1706 /* RTL2832U devices: */
1707 { DVB_USB_DEVICE(USB_VID_REALTEK, 0x2832,
1708 &rtl28xxu_props, "Realtek RTL2832U reference design", NULL) },
1709 { DVB_USB_DEVICE(USB_VID_REALTEK, 0x2838,
1710 &rtl28xxu_props, "Realtek RTL2832U reference design", NULL) },
1711 { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_CINERGY_T_STICK_BLACK_REV1,
1712 &rtl28xxu_props, "TerraTec Cinergy T Stick Black", RC_MAP_TERRATEC_SLIM) },
1713 { DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_DELOCK_USB2_DVBT,
1714 &rtl28xxu_props, "G-Tek Electronics Group Lifeview LV5TDLX DVB-T", NULL) },
1715 { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_NOXON_DAB_STICK,
1716 &rtl28xxu_props, "TerraTec NOXON DAB Stick", NULL) },
1717 { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_NOXON_DAB_STICK_REV2,
1718 &rtl28xxu_props, "TerraTec NOXON DAB Stick (rev 2)", NULL) },
1719 { DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_NOXON_DAB_STICK_REV3,
1720 &rtl28xxu_props, "TerraTec NOXON DAB Stick (rev 3)", NULL) },
1721 { DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_TREKSTOR_TERRES_2_0,
1722 &rtl28xxu_props, "Trekstor DVB-T Stick Terres 2.0", NULL) },
1723 { DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1101,
1724 &rtl28xxu_props, "Dexatek DK DVB-T Dongle", NULL) },
1725 { DVB_USB_DEVICE(USB_VID_LEADTEK, 0x6680,
1726 &rtl28xxu_props, "DigitalNow Quad DVB-T Receiver", NULL) },
1727 { DVB_USB_DEVICE(USB_VID_LEADTEK, USB_PID_WINFAST_DTV_DONGLE_MINID,
1728 &rtl28xxu_props, "Leadtek Winfast DTV Dongle Mini D", NULL) },
1729 { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00d3,
1730 &rtl28xxu_props, "TerraTec Cinergy T Stick RC (Rev. 3)", NULL) },
1731 { DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1102,
1732 &rtl28xxu_props, "Dexatek DK mini DVB-T Dongle", NULL) },
1733 { DVB_USB_DEVICE(USB_VID_TERRATEC, 0x00d7,
1734 &rtl28xxu_props, "TerraTec Cinergy T Stick+", NULL) },
1735 { DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd3a8,
1736 &rtl28xxu_props, "ASUS My Cinema-U3100Mini Plus V2", NULL) },
1737 { DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd393,
1738 &rtl28xxu_props, "GIGABYTE U7300", NULL) },
1739 { DVB_USB_DEVICE(USB_VID_DEXATEK, 0x1104,
1740 &rtl28xxu_props, "MSI DIGIVOX Micro HD", NULL) },
1741 { DVB_USB_DEVICE(USB_VID_COMPRO, 0x0620,
1742 &rtl28xxu_props, "Compro VideoMate U620F", NULL) },
1743 { DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd394,
1744 &rtl28xxu_props, "MaxMedia HU394-T", NULL) },
1745 { DVB_USB_DEVICE(USB_VID_LEADTEK, 0x6a03,
1746 &rtl28xxu_props, "Leadtek WinFast DTV Dongle mini", NULL) },
1747 { DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_CPYTO_REDI_PC50A,
1748 &rtl28xxu_props, "Crypto ReDi PC 50 A", NULL) },
1749 { DVB_USB_DEVICE(USB_VID_KYE, 0x707f,
1750 &rtl28xxu_props, "Genius TVGo DVB-T03", NULL) },
1751 { DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd395,
1752 &rtl28xxu_props, "Peak DVB-T USB", NULL) },
1753 { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_SVEON_STV20_RTL2832U,
1754 &rtl28xxu_props, "Sveon STV20", NULL) },
1755 { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_SVEON_STV21,
1756 &rtl28xxu_props, "Sveon STV21", NULL) },
1757 { DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_SVEON_STV27,
1758 &rtl28xxu_props, "Sveon STV27", NULL) },
1759
1760 /* RTL2832P devices: */
1761 { DVB_USB_DEVICE(USB_VID_HANFTEK, 0x0131,
1762 &rtl28xxu_props, "Astrometa DVB-T2", NULL) },
1763 { }
1764 };
1765 MODULE_DEVICE_TABLE(usb, rtl28xxu_id_table);
1766
1767 static struct usb_driver rtl28xxu_usb_driver = {
1768 .name = KBUILD_MODNAME,
1769 .id_table = rtl28xxu_id_table,
1770 .probe = dvb_usbv2_probe,
1771 .disconnect = dvb_usbv2_disconnect,
1772 .suspend = dvb_usbv2_suspend,
1773 .resume = dvb_usbv2_resume,
1774 .reset_resume = dvb_usbv2_reset_resume,
1775 .no_dynamic_id = 1,
1776 .soft_unbind = 1,
1777 };
1778
1779 module_usb_driver(rtl28xxu_usb_driver);
1780
1781 MODULE_DESCRIPTION("Realtek RTL28xxU DVB USB driver");
1782 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
1783 MODULE_AUTHOR("Thomas Mair <thomas.mair86@googlemail.com>");
1784 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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