aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/media/dvb/dvb-usb/rtl28xxu.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/dvb/dvb-usb/rtl28xxu.c')
-rw-r--r--drivers/media/dvb/dvb-usb/rtl28xxu.c982
1 files changed, 982 insertions, 0 deletions
diff --git a/drivers/media/dvb/dvb-usb/rtl28xxu.c b/drivers/media/dvb/dvb-usb/rtl28xxu.c
new file mode 100644
index 000000000000..8f4736a10fc8
--- /dev/null
+++ b/drivers/media/dvb/dvb-usb/rtl28xxu.c
@@ -0,0 +1,982 @@
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 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20 */
21
22#include "rtl28xxu.h"
23
24#include "rtl2830.h"
25
26#include "qt1010.h"
27#include "mt2060.h"
28#include "mxl5005s.h"
29
30/* debug */
31static int dvb_usb_rtl28xxu_debug;
32module_param_named(debug, dvb_usb_rtl28xxu_debug, int, 0644);
33MODULE_PARM_DESC(debug, "set debugging level" DVB_USB_DEBUG_STATUS);
34DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
35
36static int rtl28xxu_ctrl_msg(struct dvb_usb_device *d, struct rtl28xxu_req *req)
37{
38 int ret;
39 unsigned int pipe;
40 u8 requesttype;
41 u8 *buf;
42
43 buf = kmalloc(req->size, GFP_KERNEL);
44 if (!buf) {
45 ret = -ENOMEM;
46 goto err;
47 }
48
49 if (req->index & CMD_WR_FLAG) {
50 /* write */
51 memcpy(buf, req->data, req->size);
52 requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);
53 pipe = usb_sndctrlpipe(d->udev, 0);
54 } else {
55 /* read */
56 requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
57 pipe = usb_rcvctrlpipe(d->udev, 0);
58 }
59
60 ret = usb_control_msg(d->udev, pipe, 0, requesttype, req->value,
61 req->index, buf, req->size, 1000);
62 if (ret > 0)
63 ret = 0;
64
65 deb_dump(0, requesttype, req->value, req->index, buf, req->size,
66 deb_xfer);
67
68 /* read request, copy returned data to return buf */
69 if (!ret && requesttype == (USB_TYPE_VENDOR | USB_DIR_IN))
70 memcpy(req->data, buf, req->size);
71
72 kfree(buf);
73
74 if (ret)
75 goto err;
76
77 return ret;
78err:
79 deb_info("%s: failed=%d\n", __func__, ret);
80 return ret;
81}
82
83static int rtl2831_wr_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_WR;
89 else if (reg < 0x4000)
90 req.index = CMD_SYS_WR;
91 else
92 req.index = CMD_IR_WR;
93
94 req.value = reg;
95 req.size = len;
96 req.data = val;
97
98 return rtl28xxu_ctrl_msg(d, &req);
99}
100
101static int rtl2831_rd_regs(struct dvb_usb_device *d, u16 reg, u8 *val, int len)
102{
103 struct rtl28xxu_req req;
104
105 if (reg < 0x3000)
106 req.index = CMD_USB_RD;
107 else if (reg < 0x4000)
108 req.index = CMD_SYS_RD;
109 else
110 req.index = CMD_IR_RD;
111
112 req.value = reg;
113 req.size = len;
114 req.data = val;
115
116 return rtl28xxu_ctrl_msg(d, &req);
117}
118
119static int rtl2831_wr_reg(struct dvb_usb_device *d, u16 reg, u8 val)
120{
121 return rtl2831_wr_regs(d, reg, &val, 1);
122}
123
124static int rtl2831_rd_reg(struct dvb_usb_device *d, u16 reg, u8 *val)
125{
126 return rtl2831_rd_regs(d, reg, val, 1);
127}
128
129/* I2C */
130static int rtl28xxu_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
131 int num)
132{
133 int ret;
134 struct dvb_usb_device *d = i2c_get_adapdata(adap);
135 struct rtl28xxu_priv *priv = d->priv;
136 struct rtl28xxu_req req;
137
138 /*
139 * It is not known which are real I2C bus xfer limits, but testing
140 * with RTL2831U + MT2060 gives max RD 24 and max WR 22 bytes.
141 * TODO: find out RTL2832U lens
142 */
143
144 /*
145 * I2C adapter logic looks rather complicated due to fact it handles
146 * three different access methods. Those methods are;
147 * 1) integrated demod access
148 * 2) old I2C access
149 * 3) new I2C access
150 *
151 * Used method is selected in order 1, 2, 3. Method 3 can handle all
152 * requests but there is two reasons why not use it always;
153 * 1) It is most expensive, usually two USB messages are needed
154 * 2) At least RTL2831U does not support it
155 *
156 * Method 3 is needed in case of I2C write+read (typical register read)
157 * where write is more than one byte.
158 */
159
160 if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
161 return -EAGAIN;
162
163 if (num == 2 && !(msg[0].flags & I2C_M_RD) &&
164 (msg[1].flags & I2C_M_RD)) {
165 if (msg[0].len > 24 || msg[1].len > 24) {
166 /* TODO: check msg[0].len max */
167 ret = -EOPNOTSUPP;
168 goto err_mutex_unlock;
169 } else if (msg[0].addr == 0x10) {
170 /* method 1 - integrated demod */
171 req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
172 req.index = CMD_DEMOD_RD | priv->page;
173 req.size = msg[1].len;
174 req.data = &msg[1].buf[0];
175 ret = rtl28xxu_ctrl_msg(d, &req);
176 } else if (msg[0].len < 2) {
177 /* method 2 - old I2C */
178 req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
179 req.index = CMD_I2C_RD;
180 req.size = msg[1].len;
181 req.data = &msg[1].buf[0];
182 ret = rtl28xxu_ctrl_msg(d, &req);
183 } else {
184 /* method 3 - new I2C */
185 req.value = (msg[0].addr << 1);
186 req.index = CMD_I2C_DA_WR;
187 req.size = msg[0].len;
188 req.data = msg[0].buf;
189 ret = rtl28xxu_ctrl_msg(d, &req);
190 if (ret)
191 goto err_mutex_unlock;
192
193 req.value = (msg[0].addr << 1);
194 req.index = CMD_I2C_DA_RD;
195 req.size = msg[1].len;
196 req.data = msg[1].buf;
197 ret = rtl28xxu_ctrl_msg(d, &req);
198 }
199 } else if (num == 1 && !(msg[0].flags & I2C_M_RD)) {
200 if (msg[0].len > 22) {
201 /* TODO: check msg[0].len max */
202 ret = -EOPNOTSUPP;
203 goto err_mutex_unlock;
204 } else if (msg[0].addr == 0x10) {
205 /* method 1 - integrated demod */
206 if (msg[0].buf[0] == 0x00) {
207 /* save demod page for later demod access */
208 priv->page = msg[0].buf[1];
209 ret = 0;
210 } else {
211 req.value = (msg[0].buf[0] << 8) |
212 (msg[0].addr << 1);
213 req.index = CMD_DEMOD_WR | priv->page;
214 req.size = msg[0].len-1;
215 req.data = &msg[0].buf[1];
216 ret = rtl28xxu_ctrl_msg(d, &req);
217 }
218 } else if (msg[0].len < 23) {
219 /* method 2 - old I2C */
220 req.value = (msg[0].buf[0] << 8) | (msg[0].addr << 1);
221 req.index = CMD_I2C_WR;
222 req.size = msg[0].len-1;
223 req.data = &msg[0].buf[1];
224 ret = rtl28xxu_ctrl_msg(d, &req);
225 } else {
226 /* method 3 - new I2C */
227 req.value = (msg[0].addr << 1);
228 req.index = CMD_I2C_DA_WR;
229 req.size = msg[0].len;
230 req.data = msg[0].buf;
231 ret = rtl28xxu_ctrl_msg(d, &req);
232 }
233 } else {
234 ret = -EINVAL;
235 }
236
237err_mutex_unlock:
238 mutex_unlock(&d->i2c_mutex);
239
240 return ret ? ret : num;
241}
242
243static u32 rtl28xxu_i2c_func(struct i2c_adapter *adapter)
244{
245 return I2C_FUNC_I2C;
246}
247
248static struct i2c_algorithm rtl28xxu_i2c_algo = {
249 .master_xfer = rtl28xxu_i2c_xfer,
250 .functionality = rtl28xxu_i2c_func,
251};
252
253static struct rtl2830_config rtl28xxu_rtl2830_mt2060_config = {
254 .i2c_addr = 0x10, /* 0x20 */
255 .xtal = 28800000,
256 .ts_mode = 0,
257 .spec_inv = 1,
258 .if_dvbt = 36150000,
259 .vtop = 0x20,
260 .krf = 0x04,
261 .agc_targ_val = 0x2d,
262
263};
264
265static struct rtl2830_config rtl28xxu_rtl2830_qt1010_config = {
266 .i2c_addr = 0x10, /* 0x20 */
267 .xtal = 28800000,
268 .ts_mode = 0,
269 .spec_inv = 1,
270 .if_dvbt = 36125000,
271 .vtop = 0x20,
272 .krf = 0x04,
273 .agc_targ_val = 0x2d,
274};
275
276static struct rtl2830_config rtl28xxu_rtl2830_mxl5005s_config = {
277 .i2c_addr = 0x10, /* 0x20 */
278 .xtal = 28800000,
279 .ts_mode = 0,
280 .spec_inv = 0,
281 .if_dvbt = 4570000,
282 .vtop = 0x3f,
283 .krf = 0x04,
284 .agc_targ_val = 0x3e,
285};
286
287static int rtl2831u_frontend_attach(struct dvb_usb_adapter *adap)
288{
289 int ret;
290 struct rtl28xxu_priv *priv = adap->dev->priv;
291 u8 buf[1];
292 struct rtl2830_config *rtl2830_config;
293 /* open RTL2831U/RTL2830 I2C gate */
294 struct rtl28xxu_req req_gate = { 0x0120, 0x0011, 0x0001, "\x08" };
295 /* for MT2060 tuner probe */
296 struct rtl28xxu_req req_mt2060 = { 0x00c0, CMD_I2C_RD, 1, buf };
297 /* for QT1010 tuner probe */
298 struct rtl28xxu_req req_qt1010 = { 0x0fc4, CMD_I2C_RD, 1, buf };
299
300 deb_info("%s:\n", __func__);
301
302 /*
303 * RTL2831U GPIOs
304 * =========================================================
305 * GPIO0 | tuner#0 | 0 off | 1 on | MXL5005S (?)
306 * GPIO2 | LED | 0 off | 1 on |
307 * GPIO4 | tuner#1 | 0 on | 1 off | MT2060
308 */
309
310 /* GPIO direction */
311 ret = rtl2831_wr_reg(adap->dev, SYS_GPIO_DIR, 0x0a);
312 if (ret)
313 goto err;
314
315 /* enable as output GPIO0, GPIO2, GPIO4 */
316 ret = rtl2831_wr_reg(adap->dev, SYS_GPIO_OUT_EN, 0x15);
317 if (ret)
318 goto err;
319
320 /*
321 * Probe used tuner. We need to know used tuner before demod attach
322 * since there is some demod params needed to set according to tuner.
323 */
324
325 /* open demod I2C gate */
326 ret = rtl28xxu_ctrl_msg(adap->dev, &req_gate);
327 if (ret)
328 goto err;
329
330 /* check QT1010 ID(?) register; reg=0f val=2c */
331 ret = rtl28xxu_ctrl_msg(adap->dev, &req_qt1010);
332 if (ret == 0 && buf[0] == 0x2c) {
333 priv->tuner = TUNER_RTL2830_QT1010;
334 rtl2830_config = &rtl28xxu_rtl2830_qt1010_config;
335 deb_info("%s: QT1010\n", __func__);
336 goto found;
337 } else {
338 deb_info("%s: QT1010 probe failed=%d - %02x\n",
339 __func__, ret, buf[0]);
340 }
341
342 /* open demod I2C gate */
343 ret = rtl28xxu_ctrl_msg(adap->dev, &req_gate);
344 if (ret)
345 goto err;
346
347 /* check MT2060 ID register; reg=00 val=63 */
348 ret = rtl28xxu_ctrl_msg(adap->dev, &req_mt2060);
349 if (ret == 0 && buf[0] == 0x63) {
350 priv->tuner = TUNER_RTL2830_MT2060;
351 rtl2830_config = &rtl28xxu_rtl2830_mt2060_config;
352 deb_info("%s: MT2060\n", __func__);
353 goto found;
354 } else {
355 deb_info("%s: MT2060 probe failed=%d - %02x\n",
356 __func__, ret, buf[0]);
357 }
358
359 /* assume MXL5005S */
360 ret = 0;
361 priv->tuner = TUNER_RTL2830_MXL5005S;
362 rtl2830_config = &rtl28xxu_rtl2830_mxl5005s_config;
363 deb_info("%s: MXL5005S\n", __func__);
364 goto found;
365
366found:
367 /* attach demodulator */
368 adap->fe_adap[0].fe = dvb_attach(rtl2830_attach, rtl2830_config,
369 &adap->dev->i2c_adap);
370 if (adap->fe_adap[0].fe == NULL) {
371 ret = -ENODEV;
372 goto err;
373 }
374
375 return ret;
376err:
377 deb_info("%s: failed=%d\n", __func__, ret);
378 return ret;
379}
380
381static int rtl2832u_frontend_attach(struct dvb_usb_adapter *adap)
382{
383 int ret;
384 struct rtl28xxu_priv *priv = adap->dev->priv;
385 u8 buf[1];
386 /* open RTL2832U/RTL2832 I2C gate */
387 struct rtl28xxu_req req_gate_open = {0x0120, 0x0011, 0x0001, "\x18"};
388 /* close RTL2832U/RTL2832 I2C gate */
389 struct rtl28xxu_req req_gate_close = {0x0120, 0x0011, 0x0001, "\x10"};
390 /* for FC2580 tuner probe */
391 struct rtl28xxu_req req_fc2580 = {0x01ac, CMD_I2C_RD, 1, buf};
392
393 deb_info("%s:\n", __func__);
394
395 /* GPIO direction */
396 ret = rtl2831_wr_reg(adap->dev, SYS_GPIO_DIR, 0x0a);
397 if (ret)
398 goto err;
399
400 /* enable as output GPIO0, GPIO2, GPIO4 */
401 ret = rtl2831_wr_reg(adap->dev, SYS_GPIO_OUT_EN, 0x15);
402 if (ret)
403 goto err;
404
405 ret = rtl2831_wr_reg(adap->dev, SYS_DEMOD_CTL, 0xe8);
406 if (ret)
407 goto err;
408
409 /*
410 * Probe used tuner. We need to know used tuner before demod attach
411 * since there is some demod params needed to set according to tuner.
412 */
413
414 /* open demod I2C gate */
415 ret = rtl28xxu_ctrl_msg(adap->dev, &req_gate_open);
416 if (ret)
417 goto err;
418
419 /* check FC2580 ID register; reg=01 val=56 */
420 ret = rtl28xxu_ctrl_msg(adap->dev, &req_fc2580);
421 if (ret == 0 && buf[0] == 0x56) {
422 priv->tuner = TUNER_RTL2832_FC2580;
423 deb_info("%s: FC2580\n", __func__);
424 goto found;
425 } else {
426 deb_info("%s: FC2580 probe failed=%d - %02x\n",
427 __func__, ret, buf[0]);
428 }
429
430 /* close demod I2C gate */
431 ret = rtl28xxu_ctrl_msg(adap->dev, &req_gate_close);
432 if (ret)
433 goto err;
434
435 /* tuner not found */
436 ret = -ENODEV;
437 goto err;
438
439found:
440 /* close demod I2C gate */
441 ret = rtl28xxu_ctrl_msg(adap->dev, &req_gate_close);
442 if (ret)
443 goto err;
444
445 /* attach demodulator */
446 /* TODO: */
447
448 return ret;
449err:
450 deb_info("%s: failed=%d\n", __func__, ret);
451 return ret;
452}
453
454static struct qt1010_config rtl28xxu_qt1010_config = {
455 .i2c_address = 0x62, /* 0xc4 */
456};
457
458static struct mt2060_config rtl28xxu_mt2060_config = {
459 .i2c_address = 0x60, /* 0xc0 */
460 .clock_out = 0,
461};
462
463static struct mxl5005s_config rtl28xxu_mxl5005s_config = {
464 .i2c_address = 0x63, /* 0xc6 */
465 .if_freq = IF_FREQ_4570000HZ,
466 .xtal_freq = CRYSTAL_FREQ_16000000HZ,
467 .agc_mode = MXL_SINGLE_AGC,
468 .tracking_filter = MXL_TF_C_H,
469 .rssi_enable = MXL_RSSI_ENABLE,
470 .cap_select = MXL_CAP_SEL_ENABLE,
471 .div_out = MXL_DIV_OUT_4,
472 .clock_out = MXL_CLOCK_OUT_DISABLE,
473 .output_load = MXL5005S_IF_OUTPUT_LOAD_200_OHM,
474 .top = MXL5005S_TOP_25P2,
475 .mod_mode = MXL_DIGITAL_MODE,
476 .if_mode = MXL_ZERO_IF,
477 .AgcMasterByte = 0x00,
478};
479
480static int rtl2831u_tuner_attach(struct dvb_usb_adapter *adap)
481{
482 int ret;
483 struct rtl28xxu_priv *priv = adap->dev->priv;
484 struct i2c_adapter *rtl2830_tuner_i2c;
485 struct dvb_frontend *fe;
486
487 deb_info("%s:\n", __func__);
488
489 /* use rtl2830 driver I2C adapter, for more info see rtl2830 driver */
490 rtl2830_tuner_i2c = rtl2830_get_tuner_i2c_adapter(adap->fe_adap[0].fe);
491
492 switch (priv->tuner) {
493 case TUNER_RTL2830_QT1010:
494 fe = dvb_attach(qt1010_attach, adap->fe_adap[0].fe,
495 rtl2830_tuner_i2c, &rtl28xxu_qt1010_config);
496 break;
497 case TUNER_RTL2830_MT2060:
498 fe = dvb_attach(mt2060_attach, adap->fe_adap[0].fe,
499 rtl2830_tuner_i2c, &rtl28xxu_mt2060_config,
500 1220);
501 break;
502 case TUNER_RTL2830_MXL5005S:
503 fe = dvb_attach(mxl5005s_attach, adap->fe_adap[0].fe,
504 rtl2830_tuner_i2c, &rtl28xxu_mxl5005s_config);
505 break;
506 default:
507 fe = NULL;
508 err("unknown tuner=%d", priv->tuner);
509 }
510
511 if (fe == NULL) {
512 ret = -ENODEV;
513 goto err;
514 }
515
516 return 0;
517err:
518 deb_info("%s: failed=%d\n", __func__, ret);
519 return ret;
520}
521
522static int rtl2832u_tuner_attach(struct dvb_usb_adapter *adap)
523{
524 int ret;
525 struct rtl28xxu_priv *priv = adap->dev->priv;
526 struct dvb_frontend *fe;
527
528 deb_info("%s:\n", __func__);
529
530 switch (priv->tuner) {
531 case TUNER_RTL2832_FC2580:
532 /* TODO: */
533 fe = NULL;
534 break;
535 default:
536 fe = NULL;
537 err("unknown tuner=%d", priv->tuner);
538 }
539
540 if (fe == NULL) {
541 ret = -ENODEV;
542 goto err;
543 }
544
545 return 0;
546err:
547 deb_info("%s: failed=%d\n", __func__, ret);
548 return ret;
549}
550
551static int rtl28xxu_streaming_ctrl(struct dvb_usb_adapter *adap , int onoff)
552{
553 int ret;
554 u8 buf[2], gpio;
555
556 deb_info("%s: onoff=%d\n", __func__, onoff);
557
558 ret = rtl2831_rd_reg(adap->dev, SYS_GPIO_OUT_VAL, &gpio);
559 if (ret)
560 goto err;
561
562 if (onoff) {
563 buf[0] = 0x00;
564 buf[1] = 0x00;
565 gpio |= 0x04; /* LED on */
566 } else {
567 buf[0] = 0x10; /* stall EPA */
568 buf[1] = 0x02; /* reset EPA */
569 gpio &= (~0x04); /* LED off */
570 }
571
572 ret = rtl2831_wr_reg(adap->dev, SYS_GPIO_OUT_VAL, gpio);
573 if (ret)
574 goto err;
575
576 ret = rtl2831_wr_regs(adap->dev, USB_EPA_CTL, buf, 2);
577 if (ret)
578 goto err;
579
580 return ret;
581err:
582 deb_info("%s: failed=%d\n", __func__, ret);
583 return ret;
584}
585
586static int rtl28xxu_power_ctrl(struct dvb_usb_device *d, int onoff)
587{
588 int ret;
589 u8 gpio, sys0;
590
591 deb_info("%s: onoff=%d\n", __func__, onoff);
592
593 /* demod adc */
594 ret = rtl2831_rd_reg(d, SYS_SYS0, &sys0);
595 if (ret)
596 goto err;
597
598 /* tuner power, read GPIOs */
599 ret = rtl2831_rd_reg(d, SYS_GPIO_OUT_VAL, &gpio);
600 if (ret)
601 goto err;
602
603 deb_info("%s: RD SYS0=%02x GPIO_OUT_VAL=%02x\n", __func__, sys0, gpio);
604
605 if (onoff) {
606 gpio |= 0x01; /* GPIO0 = 1 */
607 gpio &= (~0x10); /* GPIO4 = 0 */
608 sys0 = sys0 & 0x0f;
609 sys0 |= 0xe0;
610 } else {
611 gpio &= (~0x01); /* GPIO0 = 0 */
612 gpio |= 0x10; /* GPIO4 = 1 */
613 sys0 = sys0 & (~0xc0);
614 }
615
616 deb_info("%s: WR SYS0=%02x GPIO_OUT_VAL=%02x\n", __func__, sys0, gpio);
617
618 /* demod adc */
619 ret = rtl2831_wr_reg(d, SYS_SYS0, sys0);
620 if (ret)
621 goto err;
622
623 /* tuner power, write GPIOs */
624 ret = rtl2831_wr_reg(d, SYS_GPIO_OUT_VAL, gpio);
625 if (ret)
626 goto err;
627
628 return ret;
629err:
630 deb_info("%s: failed=%d\n", __func__, ret);
631 return ret;
632}
633
634static int rtl2831u_rc_query(struct dvb_usb_device *d)
635{
636 int ret, i;
637 struct rtl28xxu_priv *priv = d->priv;
638 u8 buf[5];
639 u32 rc_code;
640 struct rtl28xxu_reg_val rc_nec_tab[] = {
641 { 0x3033, 0x80 },
642 { 0x3020, 0x43 },
643 { 0x3021, 0x16 },
644 { 0x3022, 0x16 },
645 { 0x3023, 0x5a },
646 { 0x3024, 0x2d },
647 { 0x3025, 0x16 },
648 { 0x3026, 0x01 },
649 { 0x3028, 0xb0 },
650 { 0x3029, 0x04 },
651 { 0x302c, 0x88 },
652 { 0x302e, 0x13 },
653 { 0x3030, 0xdf },
654 { 0x3031, 0x05 },
655 };
656
657 /* init remote controller */
658 if (!priv->rc_active) {
659 for (i = 0; i < ARRAY_SIZE(rc_nec_tab); i++) {
660 ret = rtl2831_wr_reg(d, rc_nec_tab[i].reg,
661 rc_nec_tab[i].val);
662 if (ret)
663 goto err;
664 }
665 priv->rc_active = true;
666 }
667
668 ret = rtl2831_rd_regs(d, SYS_IRRC_RP, buf, 5);
669 if (ret)
670 goto err;
671
672 if (buf[4] & 0x01) {
673 if (buf[2] == (u8) ~buf[3]) {
674 if (buf[0] == (u8) ~buf[1]) {
675 /* NEC standard (16 bit) */
676 rc_code = buf[0] << 8 | buf[2];
677 } else {
678 /* NEC extended (24 bit) */
679 rc_code = buf[0] << 16 |
680 buf[1] << 8 | buf[2];
681 }
682 } else {
683 /* NEC full (32 bit) */
684 rc_code = buf[0] << 24 | buf[1] << 16 |
685 buf[2] << 8 | buf[3];
686 }
687
688 rc_keydown(d->rc_dev, rc_code, 0);
689
690 ret = rtl2831_wr_reg(d, SYS_IRRC_SR, 1);
691 if (ret)
692 goto err;
693
694 /* repeated intentionally to avoid extra keypress */
695 ret = rtl2831_wr_reg(d, SYS_IRRC_SR, 1);
696 if (ret)
697 goto err;
698 }
699
700 return ret;
701err:
702 deb_info("%s: failed=%d\n", __func__, ret);
703 return ret;
704}
705
706static int rtl2832u_rc_query(struct dvb_usb_device *d)
707{
708 int ret, i;
709 struct rtl28xxu_priv *priv = d->priv;
710 u8 buf[128];
711 int len;
712 struct rtl28xxu_reg_val rc_nec_tab[] = {
713 { IR_RX_CTRL, 0x20 },
714 { IR_RX_BUF_CTRL, 0x80 },
715 { IR_RX_IF, 0xff },
716 { IR_RX_IE, 0xff },
717 { IR_MAX_DURATION0, 0xd0 },
718 { IR_MAX_DURATION1, 0x07 },
719 { IR_IDLE_LEN0, 0xc0 },
720 { IR_IDLE_LEN1, 0x00 },
721 { IR_GLITCH_LEN, 0x03 },
722 { IR_RX_CLK, 0x09 },
723 { IR_RX_CFG, 0x1c },
724 { IR_MAX_H_TOL_LEN, 0x1e },
725 { IR_MAX_L_TOL_LEN, 0x1e },
726 { IR_RX_CTRL, 0x80 },
727 };
728
729 /* init remote controller */
730 if (!priv->rc_active) {
731 for (i = 0; i < ARRAY_SIZE(rc_nec_tab); i++) {
732 ret = rtl2831_wr_reg(d, rc_nec_tab[i].reg,
733 rc_nec_tab[i].val);
734 if (ret)
735 goto err;
736 }
737 priv->rc_active = true;
738 }
739
740 ret = rtl2831_rd_reg(d, IR_RX_IF, &buf[0]);
741 if (ret)
742 goto err;
743
744 if (buf[0] != 0x83)
745 goto exit;
746
747 ret = rtl2831_rd_reg(d, IR_RX_BC, &buf[0]);
748 if (ret)
749 goto err;
750
751 len = buf[0];
752 ret = rtl2831_rd_regs(d, IR_RX_BUF, buf, len);
753
754 /* TODO: pass raw IR to Kernel IR decoder */
755
756 ret = rtl2831_wr_reg(d, IR_RX_IF, 0x03);
757 ret = rtl2831_wr_reg(d, IR_RX_BUF_CTRL, 0x80);
758 ret = rtl2831_wr_reg(d, IR_RX_CTRL, 0x80);
759
760exit:
761 return ret;
762err:
763 deb_info("%s: failed=%d\n", __func__, ret);
764 return ret;
765}
766
767enum rtl28xxu_usb_table_entry {
768 RTL2831U_0BDA_2831,
769 RTL2831U_14AA_0160,
770 RTL2831U_14AA_0161,
771};
772
773static struct usb_device_id rtl28xxu_table[] = {
774 /* RTL2831U */
775 [RTL2831U_0BDA_2831] = {
776 USB_DEVICE(USB_VID_REALTEK, USB_PID_REALTEK_RTL2831U)},
777 [RTL2831U_14AA_0160] = {
778 USB_DEVICE(USB_VID_WIDEVIEW, USB_PID_FREECOM_DVBT)},
779 [RTL2831U_14AA_0161] = {
780 USB_DEVICE(USB_VID_WIDEVIEW, USB_PID_FREECOM_DVBT_2)},
781
782 /* RTL2832U */
783 {} /* terminating entry */
784};
785
786MODULE_DEVICE_TABLE(usb, rtl28xxu_table);
787
788static struct dvb_usb_device_properties rtl28xxu_properties[] = {
789 {
790 .caps = DVB_USB_IS_AN_I2C_ADAPTER,
791
792 .usb_ctrl = DEVICE_SPECIFIC,
793 .no_reconnect = 1,
794
795 .size_of_priv = sizeof(struct rtl28xxu_priv),
796
797 .num_adapters = 1,
798 .adapter = {
799 {
800 .num_frontends = 1,
801 .fe = {
802 {
803 .frontend_attach = rtl2831u_frontend_attach,
804 .tuner_attach = rtl2831u_tuner_attach,
805 .streaming_ctrl = rtl28xxu_streaming_ctrl,
806 .stream = {
807 .type = USB_BULK,
808 .count = 6,
809 .endpoint = 0x81,
810 .u = {
811 .bulk = {
812 .buffersize = 8*512,
813 }
814 }
815 }
816 }
817 }
818 }
819 },
820
821 .power_ctrl = rtl28xxu_power_ctrl,
822
823 .rc.core = {
824 .protocol = RC_TYPE_NEC,
825 .module_name = "rtl28xxu",
826 .rc_query = rtl2831u_rc_query,
827 .rc_interval = 400,
828 .allowed_protos = RC_TYPE_NEC,
829 .rc_codes = RC_MAP_EMPTY,
830 },
831
832 .i2c_algo = &rtl28xxu_i2c_algo,
833
834 .num_device_descs = 2,
835 .devices = {
836 {
837 .name = "Realtek RTL2831U reference design",
838 .warm_ids = {
839 &rtl28xxu_table[RTL2831U_0BDA_2831],
840 },
841 },
842 {
843 .name = "Freecom USB2.0 DVB-T",
844 .warm_ids = {
845 &rtl28xxu_table[RTL2831U_14AA_0160],
846 &rtl28xxu_table[RTL2831U_14AA_0161],
847 },
848 },
849 }
850 },
851 {
852 .caps = DVB_USB_IS_AN_I2C_ADAPTER,
853
854 .usb_ctrl = DEVICE_SPECIFIC,
855 .no_reconnect = 1,
856
857 .size_of_priv = sizeof(struct rtl28xxu_priv),
858
859 .num_adapters = 1,
860 .adapter = {
861 {
862 .num_frontends = 1,
863 .fe = {
864 {
865 .frontend_attach = rtl2832u_frontend_attach,
866 .tuner_attach = rtl2832u_tuner_attach,
867 .streaming_ctrl = rtl28xxu_streaming_ctrl,
868 .stream = {
869 .type = USB_BULK,
870 .count = 6,
871 .endpoint = 0x81,
872 .u = {
873 .bulk = {
874 .buffersize = 8*512,
875 }
876 }
877 }
878 }
879 }
880 }
881 },
882
883 .power_ctrl = rtl28xxu_power_ctrl,
884
885 .rc.core = {
886 .protocol = RC_TYPE_NEC,
887 .module_name = "rtl28xxu",
888 .rc_query = rtl2832u_rc_query,
889 .rc_interval = 400,
890 .allowed_protos = RC_TYPE_NEC,
891 .rc_codes = RC_MAP_EMPTY,
892 },
893
894 .i2c_algo = &rtl28xxu_i2c_algo,
895
896 .num_device_descs = 0, /* disabled as no support for RTL2832 */
897 .devices = {
898 {
899 .name = "Realtek RTL2832U reference design",
900 },
901 }
902 },
903
904};
905
906static int rtl28xxu_probe(struct usb_interface *intf,
907 const struct usb_device_id *id)
908{
909 int ret, i;
910 int properties_count = ARRAY_SIZE(rtl28xxu_properties);
911 struct dvb_usb_device *d;
912
913 deb_info("%s: interface=%d\n", __func__,
914 intf->cur_altsetting->desc.bInterfaceNumber);
915
916 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
917 return 0;
918
919 for (i = 0; i < properties_count; i++) {
920 ret = dvb_usb_device_init(intf, &rtl28xxu_properties[i],
921 THIS_MODULE, &d, adapter_nr);
922 if (ret == 0 || ret != -ENODEV)
923 break;
924 }
925
926 if (ret)
927 goto err;
928
929 /* init USB endpoints */
930 ret = rtl2831_wr_reg(d, USB_SYSCTL_0, 0x09);
931 if (ret)
932 goto err;
933
934 ret = rtl2831_wr_regs(d, USB_EPA_MAXPKT, "\x00\x02\x00\x00", 4);
935 if (ret)
936 goto err;
937
938 ret = rtl2831_wr_regs(d, USB_EPA_FIFO_CFG, "\x14\x00\x00\x00", 4);
939 if (ret)
940 goto err;
941
942 return ret;
943err:
944 deb_info("%s: failed=%d\n", __func__, ret);
945 return ret;
946}
947
948static struct usb_driver rtl28xxu_driver = {
949 .name = "dvb_usb_rtl28xxu",
950 .probe = rtl28xxu_probe,
951 .disconnect = dvb_usb_device_exit,
952 .id_table = rtl28xxu_table,
953};
954
955/* module stuff */
956static int __init rtl28xxu_module_init(void)
957{
958 int ret;
959
960 deb_info("%s:\n", __func__);
961
962 ret = usb_register(&rtl28xxu_driver);
963 if (ret)
964 err("usb_register failed=%d", ret);
965
966 return ret;
967}
968
969static void __exit rtl28xxu_module_exit(void)
970{
971 deb_info("%s:\n", __func__);
972
973 /* deregister this driver from the USB subsystem */
974 usb_deregister(&rtl28xxu_driver);
975}
976
977module_init(rtl28xxu_module_init);
978module_exit(rtl28xxu_module_exit);
979
980MODULE_DESCRIPTION("Realtek RTL28xxU DVB USB driver");
981MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
982MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-26 19:39:40 -0500