Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
[linux-2.6] / drivers / media / dvb / frontends / dib3000mb.c
1 /*
2  * Frontend driver for mobile DVB-T demodulator DiBcom 3000M-B
3  * DiBcom (http://www.dibcom.fr/)
4  *
5  * Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@desy.de)
6  *
7  * based on GPL code from DibCom, which has
8  *
9  * Copyright (C) 2004 Amaury Demol for DiBcom (ademol@dibcom.fr)
10  *
11  *      This program is free software; you can redistribute it and/or
12  *      modify it under the terms of the GNU General Public License as
13  *      published by the Free Software Foundation, version 2.
14  *
15  * Acknowledgements
16  *
17  *  Amaury Demol (ademol@dibcom.fr) from DiBcom for providing specs and driver
18  *  sources, on which this driver (and the dvb-dibusb) are based.
19  *
20  * see Documentation/dvb/README.dibusb for more information
21  *
22  */
23
24 #include <linux/kernel.h>
25 #include <linux/module.h>
26 #include <linux/moduleparam.h>
27 #include <linux/init.h>
28 #include <linux/delay.h>
29 #include <linux/string.h>
30 #include <linux/slab.h>
31
32 #include "dib3000-common.h"
33 #include "dib3000mb_priv.h"
34 #include "dib3000.h"
35
36 /* Version information */
37 #define DRIVER_VERSION "0.1"
38 #define DRIVER_DESC "DiBcom 3000M-B DVB-T demodulator"
39 #define DRIVER_AUTHOR "Patrick Boettcher, patrick.boettcher@desy.de"
40
41 #ifdef CONFIG_DVB_DIBCOM_DEBUG
42 static int debug;
43 module_param(debug, int, 0644);
44 MODULE_PARM_DESC(debug, "set debugging level (1=info,2=xfer,4=setfe,8=getfe (|-able)).");
45 #endif
46 #define deb_info(args...) dprintk(0x01,args)
47 #define deb_xfer(args...) dprintk(0x02,args)
48 #define deb_setf(args...) dprintk(0x04,args)
49 #define deb_getf(args...) dprintk(0x08,args)
50
51 static int dib3000mb_get_frontend(struct dvb_frontend* fe,
52                                   struct dvb_frontend_parameters *fep);
53
54 static int dib3000mb_set_frontend(struct dvb_frontend* fe,
55                                   struct dvb_frontend_parameters *fep, int tuner)
56 {
57         struct dib3000_state* state = fe->demodulator_priv;
58         struct dvb_ofdm_parameters *ofdm = &fep->u.ofdm;
59         fe_code_rate_t fe_cr = FEC_NONE;
60         int search_state, seq;
61
62         if (tuner && fe->ops.tuner_ops.set_params) {
63                 fe->ops.tuner_ops.set_params(fe, fep);
64                 if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0);
65
66                 deb_setf("bandwidth: ");
67                 switch (ofdm->bandwidth) {
68                         case BANDWIDTH_8_MHZ:
69                                 deb_setf("8 MHz\n");
70                                 wr_foreach(dib3000mb_reg_timing_freq, dib3000mb_timing_freq[2]);
71                                 wr_foreach(dib3000mb_reg_bandwidth, dib3000mb_bandwidth_8mhz);
72                                 break;
73                         case BANDWIDTH_7_MHZ:
74                                 deb_setf("7 MHz\n");
75                                 wr_foreach(dib3000mb_reg_timing_freq, dib3000mb_timing_freq[1]);
76                                 wr_foreach(dib3000mb_reg_bandwidth, dib3000mb_bandwidth_7mhz);
77                                 break;
78                         case BANDWIDTH_6_MHZ:
79                                 deb_setf("6 MHz\n");
80                                 wr_foreach(dib3000mb_reg_timing_freq, dib3000mb_timing_freq[0]);
81                                 wr_foreach(dib3000mb_reg_bandwidth, dib3000mb_bandwidth_6mhz);
82                                 break;
83                         case BANDWIDTH_AUTO:
84                                 return -EOPNOTSUPP;
85                         default:
86                                 err("unkown bandwidth value.");
87                                 return -EINVAL;
88                 }
89         }
90         wr(DIB3000MB_REG_LOCK1_MASK, DIB3000MB_LOCK1_SEARCH_4);
91
92         deb_setf("transmission mode: ");
93         switch (ofdm->transmission_mode) {
94                 case TRANSMISSION_MODE_2K:
95                         deb_setf("2k\n");
96                         wr(DIB3000MB_REG_FFT, DIB3000_TRANSMISSION_MODE_2K);
97                         break;
98                 case TRANSMISSION_MODE_8K:
99                         deb_setf("8k\n");
100                         wr(DIB3000MB_REG_FFT, DIB3000_TRANSMISSION_MODE_8K);
101                         break;
102                 case TRANSMISSION_MODE_AUTO:
103                         deb_setf("auto\n");
104                         break;
105                 default:
106                         return -EINVAL;
107         }
108
109         deb_setf("guard: ");
110         switch (ofdm->guard_interval) {
111                 case GUARD_INTERVAL_1_32:
112                         deb_setf("1_32\n");
113                         wr(DIB3000MB_REG_GUARD_TIME, DIB3000_GUARD_TIME_1_32);
114                         break;
115                 case GUARD_INTERVAL_1_16:
116                         deb_setf("1_16\n");
117                         wr(DIB3000MB_REG_GUARD_TIME, DIB3000_GUARD_TIME_1_16);
118                         break;
119                 case GUARD_INTERVAL_1_8:
120                         deb_setf("1_8\n");
121                         wr(DIB3000MB_REG_GUARD_TIME, DIB3000_GUARD_TIME_1_8);
122                         break;
123                 case GUARD_INTERVAL_1_4:
124                         deb_setf("1_4\n");
125                         wr(DIB3000MB_REG_GUARD_TIME, DIB3000_GUARD_TIME_1_4);
126                         break;
127                 case GUARD_INTERVAL_AUTO:
128                         deb_setf("auto\n");
129                         break;
130                 default:
131                         return -EINVAL;
132         }
133
134         deb_setf("inversion: ");
135         switch (fep->inversion) {
136                 case INVERSION_OFF:
137                         deb_setf("off\n");
138                         wr(DIB3000MB_REG_DDS_INV, DIB3000_DDS_INVERSION_OFF);
139                         break;
140                 case INVERSION_AUTO:
141                         deb_setf("auto ");
142                         break;
143                 case INVERSION_ON:
144                         deb_setf("on\n");
145                         wr(DIB3000MB_REG_DDS_INV, DIB3000_DDS_INVERSION_ON);
146                         break;
147                 default:
148                         return -EINVAL;
149         }
150
151         deb_setf("constellation: ");
152         switch (ofdm->constellation) {
153                 case QPSK:
154                         deb_setf("qpsk\n");
155                         wr(DIB3000MB_REG_QAM, DIB3000_CONSTELLATION_QPSK);
156                         break;
157                 case QAM_16:
158                         deb_setf("qam16\n");
159                         wr(DIB3000MB_REG_QAM, DIB3000_CONSTELLATION_16QAM);
160                         break;
161                 case QAM_64:
162                         deb_setf("qam64\n");
163                         wr(DIB3000MB_REG_QAM, DIB3000_CONSTELLATION_64QAM);
164                         break;
165                 case QAM_AUTO:
166                         break;
167                 default:
168                         return -EINVAL;
169         }
170         deb_setf("hierachy: ");
171         switch (ofdm->hierarchy_information) {
172                 case HIERARCHY_NONE:
173                         deb_setf("none ");
174                         /* fall through */
175                 case HIERARCHY_1:
176                         deb_setf("alpha=1\n");
177                         wr(DIB3000MB_REG_VIT_ALPHA, DIB3000_ALPHA_1);
178                         break;
179                 case HIERARCHY_2:
180                         deb_setf("alpha=2\n");
181                         wr(DIB3000MB_REG_VIT_ALPHA, DIB3000_ALPHA_2);
182                         break;
183                 case HIERARCHY_4:
184                         deb_setf("alpha=4\n");
185                         wr(DIB3000MB_REG_VIT_ALPHA, DIB3000_ALPHA_4);
186                         break;
187                 case HIERARCHY_AUTO:
188                         deb_setf("alpha=auto\n");
189                         break;
190                 default:
191                         return -EINVAL;
192         }
193
194         deb_setf("hierarchy: ");
195         if (ofdm->hierarchy_information == HIERARCHY_NONE) {
196                 deb_setf("none\n");
197                 wr(DIB3000MB_REG_VIT_HRCH, DIB3000_HRCH_OFF);
198                 wr(DIB3000MB_REG_VIT_HP, DIB3000_SELECT_HP);
199                 fe_cr = ofdm->code_rate_HP;
200         } else if (ofdm->hierarchy_information != HIERARCHY_AUTO) {
201                 deb_setf("on\n");
202                 wr(DIB3000MB_REG_VIT_HRCH, DIB3000_HRCH_ON);
203                 wr(DIB3000MB_REG_VIT_HP, DIB3000_SELECT_LP);
204                 fe_cr = ofdm->code_rate_LP;
205         }
206         deb_setf("fec: ");
207         switch (fe_cr) {
208                 case FEC_1_2:
209                         deb_setf("1_2\n");
210                         wr(DIB3000MB_REG_VIT_CODE_RATE, DIB3000_FEC_1_2);
211                         break;
212                 case FEC_2_3:
213                         deb_setf("2_3\n");
214                         wr(DIB3000MB_REG_VIT_CODE_RATE, DIB3000_FEC_2_3);
215                         break;
216                 case FEC_3_4:
217                         deb_setf("3_4\n");
218                         wr(DIB3000MB_REG_VIT_CODE_RATE, DIB3000_FEC_3_4);
219                         break;
220                 case FEC_5_6:
221                         deb_setf("5_6\n");
222                         wr(DIB3000MB_REG_VIT_CODE_RATE, DIB3000_FEC_5_6);
223                         break;
224                 case FEC_7_8:
225                         deb_setf("7_8\n");
226                         wr(DIB3000MB_REG_VIT_CODE_RATE, DIB3000_FEC_7_8);
227                         break;
228                 case FEC_NONE:
229                         deb_setf("none ");
230                         break;
231                 case FEC_AUTO:
232                         deb_setf("auto\n");
233                         break;
234                 default:
235                         return -EINVAL;
236         }
237
238         seq = dib3000_seq
239                 [ofdm->transmission_mode == TRANSMISSION_MODE_AUTO]
240                 [ofdm->guard_interval == GUARD_INTERVAL_AUTO]
241                 [fep->inversion == INVERSION_AUTO];
242
243         deb_setf("seq? %d\n", seq);
244
245         wr(DIB3000MB_REG_SEQ, seq);
246
247         wr(DIB3000MB_REG_ISI, seq ? DIB3000MB_ISI_INHIBIT : DIB3000MB_ISI_ACTIVATE);
248
249         if (ofdm->transmission_mode == TRANSMISSION_MODE_2K) {
250                 if (ofdm->guard_interval == GUARD_INTERVAL_1_8) {
251                         wr(DIB3000MB_REG_SYNC_IMPROVEMENT, DIB3000MB_SYNC_IMPROVE_2K_1_8);
252                 } else {
253                         wr(DIB3000MB_REG_SYNC_IMPROVEMENT, DIB3000MB_SYNC_IMPROVE_DEFAULT);
254                 }
255
256                 wr(DIB3000MB_REG_UNK_121, DIB3000MB_UNK_121_2K);
257         } else {
258                 wr(DIB3000MB_REG_UNK_121, DIB3000MB_UNK_121_DEFAULT);
259         }
260
261         wr(DIB3000MB_REG_MOBILE_ALGO, DIB3000MB_MOBILE_ALGO_OFF);
262         wr(DIB3000MB_REG_MOBILE_MODE_QAM, DIB3000MB_MOBILE_MODE_QAM_OFF);
263         wr(DIB3000MB_REG_MOBILE_MODE, DIB3000MB_MOBILE_MODE_OFF);
264
265         wr_foreach(dib3000mb_reg_agc_bandwidth, dib3000mb_agc_bandwidth_high);
266
267         wr(DIB3000MB_REG_ISI, DIB3000MB_ISI_ACTIVATE);
268
269         wr(DIB3000MB_REG_RESTART, DIB3000MB_RESTART_AGC + DIB3000MB_RESTART_CTRL);
270         wr(DIB3000MB_REG_RESTART, DIB3000MB_RESTART_OFF);
271
272         /* wait for AGC lock */
273         msleep(70);
274
275         wr_foreach(dib3000mb_reg_agc_bandwidth, dib3000mb_agc_bandwidth_low);
276
277         /* something has to be auto searched */
278         if (ofdm->constellation == QAM_AUTO ||
279                 ofdm->hierarchy_information == HIERARCHY_AUTO ||
280                 fe_cr == FEC_AUTO ||
281                 fep->inversion == INVERSION_AUTO) {
282                 int as_count=0;
283
284                 deb_setf("autosearch enabled.\n");
285
286                 wr(DIB3000MB_REG_ISI, DIB3000MB_ISI_INHIBIT);
287
288                 wr(DIB3000MB_REG_RESTART, DIB3000MB_RESTART_AUTO_SEARCH);
289                 wr(DIB3000MB_REG_RESTART, DIB3000MB_RESTART_OFF);
290
291                 while ((search_state =
292                                 dib3000_search_status(
293                                         rd(DIB3000MB_REG_AS_IRQ_PENDING),
294                                         rd(DIB3000MB_REG_LOCK2_VALUE))) < 0 && as_count++ < 100)
295                         msleep(1);
296
297                 deb_setf("search_state after autosearch %d after %d checks\n",search_state,as_count);
298
299                 if (search_state == 1) {
300                         struct dvb_frontend_parameters feps;
301                         if (dib3000mb_get_frontend(fe, &feps) == 0) {
302                                 deb_setf("reading tuning data from frontend succeeded.\n");
303                                 return dib3000mb_set_frontend(fe, &feps, 0);
304                         }
305                 }
306
307         } else {
308                 wr(DIB3000MB_REG_RESTART, DIB3000MB_RESTART_CTRL);
309                 wr(DIB3000MB_REG_RESTART, DIB3000MB_RESTART_OFF);
310         }
311
312         return 0;
313 }
314
315 static int dib3000mb_fe_init(struct dvb_frontend* fe, int mobile_mode)
316 {
317         struct dib3000_state* state = fe->demodulator_priv;
318
319         deb_info("dib3000mb is getting up.\n");
320         wr(DIB3000MB_REG_POWER_CONTROL, DIB3000MB_POWER_UP);
321
322         wr(DIB3000MB_REG_RESTART, DIB3000MB_RESTART_AGC);
323
324         wr(DIB3000MB_REG_RESET_DEVICE, DIB3000MB_RESET_DEVICE);
325         wr(DIB3000MB_REG_RESET_DEVICE, DIB3000MB_RESET_DEVICE_RST);
326
327         wr(DIB3000MB_REG_CLOCK, DIB3000MB_CLOCK_DEFAULT);
328
329         wr(DIB3000MB_REG_ELECT_OUT_MODE, DIB3000MB_ELECT_OUT_MODE_ON);
330
331         wr(DIB3000MB_REG_DDS_FREQ_MSB, DIB3000MB_DDS_FREQ_MSB);
332         wr(DIB3000MB_REG_DDS_FREQ_LSB, DIB3000MB_DDS_FREQ_LSB);
333
334         wr_foreach(dib3000mb_reg_timing_freq, dib3000mb_timing_freq[2]);
335
336         wr_foreach(dib3000mb_reg_impulse_noise,
337                         dib3000mb_impulse_noise_values[DIB3000MB_IMPNOISE_OFF]);
338
339         wr_foreach(dib3000mb_reg_agc_gain, dib3000mb_default_agc_gain);
340
341         wr(DIB3000MB_REG_PHASE_NOISE, DIB3000MB_PHASE_NOISE_DEFAULT);
342
343         wr_foreach(dib3000mb_reg_phase_noise, dib3000mb_default_noise_phase);
344
345         wr_foreach(dib3000mb_reg_lock_duration, dib3000mb_default_lock_duration);
346
347         wr_foreach(dib3000mb_reg_agc_bandwidth, dib3000mb_agc_bandwidth_low);
348
349         wr(DIB3000MB_REG_LOCK0_MASK, DIB3000MB_LOCK0_DEFAULT);
350         wr(DIB3000MB_REG_LOCK1_MASK, DIB3000MB_LOCK1_SEARCH_4);
351         wr(DIB3000MB_REG_LOCK2_MASK, DIB3000MB_LOCK2_DEFAULT);
352         wr(DIB3000MB_REG_SEQ, dib3000_seq[1][1][1]);
353
354         wr_foreach(dib3000mb_reg_bandwidth, dib3000mb_bandwidth_8mhz);
355
356         wr(DIB3000MB_REG_UNK_68, DIB3000MB_UNK_68);
357         wr(DIB3000MB_REG_UNK_69, DIB3000MB_UNK_69);
358         wr(DIB3000MB_REG_UNK_71, DIB3000MB_UNK_71);
359         wr(DIB3000MB_REG_UNK_77, DIB3000MB_UNK_77);
360         wr(DIB3000MB_REG_UNK_78, DIB3000MB_UNK_78);
361         wr(DIB3000MB_REG_ISI, DIB3000MB_ISI_INHIBIT);
362         wr(DIB3000MB_REG_UNK_92, DIB3000MB_UNK_92);
363         wr(DIB3000MB_REG_UNK_96, DIB3000MB_UNK_96);
364         wr(DIB3000MB_REG_UNK_97, DIB3000MB_UNK_97);
365         wr(DIB3000MB_REG_UNK_106, DIB3000MB_UNK_106);
366         wr(DIB3000MB_REG_UNK_107, DIB3000MB_UNK_107);
367         wr(DIB3000MB_REG_UNK_108, DIB3000MB_UNK_108);
368         wr(DIB3000MB_REG_UNK_122, DIB3000MB_UNK_122);
369         wr(DIB3000MB_REG_MOBILE_MODE_QAM, DIB3000MB_MOBILE_MODE_QAM_OFF);
370         wr(DIB3000MB_REG_BERLEN, DIB3000MB_BERLEN_DEFAULT);
371
372         wr_foreach(dib3000mb_reg_filter_coeffs, dib3000mb_filter_coeffs);
373
374         wr(DIB3000MB_REG_MOBILE_ALGO, DIB3000MB_MOBILE_ALGO_ON);
375         wr(DIB3000MB_REG_MULTI_DEMOD_MSB, DIB3000MB_MULTI_DEMOD_MSB);
376         wr(DIB3000MB_REG_MULTI_DEMOD_LSB, DIB3000MB_MULTI_DEMOD_LSB);
377
378         wr(DIB3000MB_REG_OUTPUT_MODE, DIB3000MB_OUTPUT_MODE_SLAVE);
379
380         wr(DIB3000MB_REG_FIFO_142, DIB3000MB_FIFO_142);
381         wr(DIB3000MB_REG_MPEG2_OUT_MODE, DIB3000MB_MPEG2_OUT_MODE_188);
382         wr(DIB3000MB_REG_PID_PARSE, DIB3000MB_PID_PARSE_ACTIVATE);
383         wr(DIB3000MB_REG_FIFO, DIB3000MB_FIFO_INHIBIT);
384         wr(DIB3000MB_REG_FIFO_146, DIB3000MB_FIFO_146);
385         wr(DIB3000MB_REG_FIFO_147, DIB3000MB_FIFO_147);
386
387         wr(DIB3000MB_REG_DATA_IN_DIVERSITY, DIB3000MB_DATA_DIVERSITY_IN_OFF);
388
389         return 0;
390 }
391
392 static int dib3000mb_get_frontend(struct dvb_frontend* fe,
393                                   struct dvb_frontend_parameters *fep)
394 {
395         struct dib3000_state* state = fe->demodulator_priv;
396         struct dvb_ofdm_parameters *ofdm = &fep->u.ofdm;
397         fe_code_rate_t *cr;
398         u16 tps_val;
399         int inv_test1,inv_test2;
400         u32 dds_val, threshold = 0x800000;
401
402         if (!rd(DIB3000MB_REG_TPS_LOCK))
403                 return 0;
404
405         dds_val = ((rd(DIB3000MB_REG_DDS_VALUE_MSB) & 0xff) << 16) + rd(DIB3000MB_REG_DDS_VALUE_LSB);
406         deb_getf("DDS_VAL: %x %x %x",dds_val, rd(DIB3000MB_REG_DDS_VALUE_MSB), rd(DIB3000MB_REG_DDS_VALUE_LSB));
407         if (dds_val < threshold)
408                 inv_test1 = 0;
409         else if (dds_val == threshold)
410                 inv_test1 = 1;
411         else
412                 inv_test1 = 2;
413
414         dds_val = ((rd(DIB3000MB_REG_DDS_FREQ_MSB) & 0xff) << 16) + rd(DIB3000MB_REG_DDS_FREQ_LSB);
415         deb_getf("DDS_FREQ: %x %x %x",dds_val, rd(DIB3000MB_REG_DDS_FREQ_MSB), rd(DIB3000MB_REG_DDS_FREQ_LSB));
416         if (dds_val < threshold)
417                 inv_test2 = 0;
418         else if (dds_val == threshold)
419                 inv_test2 = 1;
420         else
421                 inv_test2 = 2;
422
423         fep->inversion =
424                 ((inv_test2 == 2) && (inv_test1==1 || inv_test1==0)) ||
425                 ((inv_test2 == 0) && (inv_test1==1 || inv_test1==2)) ?
426                 INVERSION_ON : INVERSION_OFF;
427
428         deb_getf("inversion %d %d, %d\n", inv_test2, inv_test1, fep->inversion);
429
430         switch ((tps_val = rd(DIB3000MB_REG_TPS_QAM))) {
431                 case DIB3000_CONSTELLATION_QPSK:
432                         deb_getf("QPSK ");
433                         ofdm->constellation = QPSK;
434                         break;
435                 case DIB3000_CONSTELLATION_16QAM:
436                         deb_getf("QAM16 ");
437                         ofdm->constellation = QAM_16;
438                         break;
439                 case DIB3000_CONSTELLATION_64QAM:
440                         deb_getf("QAM64 ");
441                         ofdm->constellation = QAM_64;
442                         break;
443                 default:
444                         err("Unexpected constellation returned by TPS (%d)", tps_val);
445                         break;
446         }
447         deb_getf("TPS: %d\n", tps_val);
448
449         if (rd(DIB3000MB_REG_TPS_HRCH)) {
450                 deb_getf("HRCH ON\n");
451                 cr = &ofdm->code_rate_LP;
452                 ofdm->code_rate_HP = FEC_NONE;
453                 switch ((tps_val = rd(DIB3000MB_REG_TPS_VIT_ALPHA))) {
454                         case DIB3000_ALPHA_0:
455                                 deb_getf("HIERARCHY_NONE ");
456                                 ofdm->hierarchy_information = HIERARCHY_NONE;
457                                 break;
458                         case DIB3000_ALPHA_1:
459                                 deb_getf("HIERARCHY_1 ");
460                                 ofdm->hierarchy_information = HIERARCHY_1;
461                                 break;
462                         case DIB3000_ALPHA_2:
463                                 deb_getf("HIERARCHY_2 ");
464                                 ofdm->hierarchy_information = HIERARCHY_2;
465                                 break;
466                         case DIB3000_ALPHA_4:
467                                 deb_getf("HIERARCHY_4 ");
468                                 ofdm->hierarchy_information = HIERARCHY_4;
469                                 break;
470                         default:
471                                 err("Unexpected ALPHA value returned by TPS (%d)", tps_val);
472                                 break;
473                 }
474                 deb_getf("TPS: %d\n", tps_val);
475
476                 tps_val = rd(DIB3000MB_REG_TPS_CODE_RATE_LP);
477         } else {
478                 deb_getf("HRCH OFF\n");
479                 cr = &ofdm->code_rate_HP;
480                 ofdm->code_rate_LP = FEC_NONE;
481                 ofdm->hierarchy_information = HIERARCHY_NONE;
482
483                 tps_val = rd(DIB3000MB_REG_TPS_CODE_RATE_HP);
484         }
485
486         switch (tps_val) {
487                 case DIB3000_FEC_1_2:
488                         deb_getf("FEC_1_2 ");
489                         *cr = FEC_1_2;
490                         break;
491                 case DIB3000_FEC_2_3:
492                         deb_getf("FEC_2_3 ");
493                         *cr = FEC_2_3;
494                         break;
495                 case DIB3000_FEC_3_4:
496                         deb_getf("FEC_3_4 ");
497                         *cr = FEC_3_4;
498                         break;
499                 case DIB3000_FEC_5_6:
500                         deb_getf("FEC_5_6 ");
501                         *cr = FEC_4_5;
502                         break;
503                 case DIB3000_FEC_7_8:
504                         deb_getf("FEC_7_8 ");
505                         *cr = FEC_7_8;
506                         break;
507                 default:
508                         err("Unexpected FEC returned by TPS (%d)", tps_val);
509                         break;
510         }
511         deb_getf("TPS: %d\n",tps_val);
512
513         switch ((tps_val = rd(DIB3000MB_REG_TPS_GUARD_TIME))) {
514                 case DIB3000_GUARD_TIME_1_32:
515                         deb_getf("GUARD_INTERVAL_1_32 ");
516                         ofdm->guard_interval = GUARD_INTERVAL_1_32;
517                         break;
518                 case DIB3000_GUARD_TIME_1_16:
519                         deb_getf("GUARD_INTERVAL_1_16 ");
520                         ofdm->guard_interval = GUARD_INTERVAL_1_16;
521                         break;
522                 case DIB3000_GUARD_TIME_1_8:
523                         deb_getf("GUARD_INTERVAL_1_8 ");
524                         ofdm->guard_interval = GUARD_INTERVAL_1_8;
525                         break;
526                 case DIB3000_GUARD_TIME_1_4:
527                         deb_getf("GUARD_INTERVAL_1_4 ");
528                         ofdm->guard_interval = GUARD_INTERVAL_1_4;
529                         break;
530                 default:
531                         err("Unexpected Guard Time returned by TPS (%d)", tps_val);
532                         break;
533         }
534         deb_getf("TPS: %d\n", tps_val);
535
536         switch ((tps_val = rd(DIB3000MB_REG_TPS_FFT))) {
537                 case DIB3000_TRANSMISSION_MODE_2K:
538                         deb_getf("TRANSMISSION_MODE_2K ");
539                         ofdm->transmission_mode = TRANSMISSION_MODE_2K;
540                         break;
541                 case DIB3000_TRANSMISSION_MODE_8K:
542                         deb_getf("TRANSMISSION_MODE_8K ");
543                         ofdm->transmission_mode = TRANSMISSION_MODE_8K;
544                         break;
545                 default:
546                         err("unexpected transmission mode return by TPS (%d)", tps_val);
547                         break;
548         }
549         deb_getf("TPS: %d\n", tps_val);
550
551         return 0;
552 }
553
554 static int dib3000mb_read_status(struct dvb_frontend* fe, fe_status_t *stat)
555 {
556         struct dib3000_state* state = fe->demodulator_priv;
557
558         *stat = 0;
559
560         if (rd(DIB3000MB_REG_AGC_LOCK))
561                 *stat |= FE_HAS_SIGNAL;
562         if (rd(DIB3000MB_REG_CARRIER_LOCK))
563                 *stat |= FE_HAS_CARRIER;
564         if (rd(DIB3000MB_REG_VIT_LCK))
565                 *stat |= FE_HAS_VITERBI;
566         if (rd(DIB3000MB_REG_TS_SYNC_LOCK))
567                 *stat |= (FE_HAS_SYNC | FE_HAS_LOCK);
568
569         deb_getf("actual status is %2x\n",*stat);
570
571         deb_getf("autoval: tps: %d, qam: %d, hrch: %d, alpha: %d, hp: %d, lp: %d, guard: %d, fft: %d cell: %d\n",
572                         rd(DIB3000MB_REG_TPS_LOCK),
573                         rd(DIB3000MB_REG_TPS_QAM),
574                         rd(DIB3000MB_REG_TPS_HRCH),
575                         rd(DIB3000MB_REG_TPS_VIT_ALPHA),
576                         rd(DIB3000MB_REG_TPS_CODE_RATE_HP),
577                         rd(DIB3000MB_REG_TPS_CODE_RATE_LP),
578                         rd(DIB3000MB_REG_TPS_GUARD_TIME),
579                         rd(DIB3000MB_REG_TPS_FFT),
580                         rd(DIB3000MB_REG_TPS_CELL_ID));
581
582         //*stat = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
583         return 0;
584 }
585
586 static int dib3000mb_read_ber(struct dvb_frontend* fe, u32 *ber)
587 {
588         struct dib3000_state* state = fe->demodulator_priv;
589
590         *ber = ((rd(DIB3000MB_REG_BER_MSB) << 16) | rd(DIB3000MB_REG_BER_LSB));
591         return 0;
592 }
593
594 /* see dib3000-watch dvb-apps for exact calcuations of signal_strength and snr */
595 static int dib3000mb_read_signal_strength(struct dvb_frontend* fe, u16 *strength)
596 {
597         struct dib3000_state* state = fe->demodulator_priv;
598
599         *strength = rd(DIB3000MB_REG_SIGNAL_POWER) * 0xffff / 0x170;
600         return 0;
601 }
602
603 static int dib3000mb_read_snr(struct dvb_frontend* fe, u16 *snr)
604 {
605         struct dib3000_state* state = fe->demodulator_priv;
606         short sigpow = rd(DIB3000MB_REG_SIGNAL_POWER);
607         int icipow = ((rd(DIB3000MB_REG_NOISE_POWER_MSB) & 0xff) << 16) |
608                 rd(DIB3000MB_REG_NOISE_POWER_LSB);
609         *snr = (sigpow << 8) / ((icipow > 0) ? icipow : 1);
610         return 0;
611 }
612
613 static int dib3000mb_read_unc_blocks(struct dvb_frontend* fe, u32 *unc)
614 {
615         struct dib3000_state* state = fe->demodulator_priv;
616
617         *unc = rd(DIB3000MB_REG_PACKET_ERROR_RATE);
618         return 0;
619 }
620
621 static int dib3000mb_sleep(struct dvb_frontend* fe)
622 {
623         struct dib3000_state* state = fe->demodulator_priv;
624         deb_info("dib3000mb is going to bed.\n");
625         wr(DIB3000MB_REG_POWER_CONTROL, DIB3000MB_POWER_DOWN);
626         return 0;
627 }
628
629 static int dib3000mb_fe_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings *tune)
630 {
631         tune->min_delay_ms = 800;
632         return 0;
633 }
634
635 static int dib3000mb_fe_init_nonmobile(struct dvb_frontend* fe)
636 {
637         return dib3000mb_fe_init(fe, 0);
638 }
639
640 static int dib3000mb_set_frontend_and_tuner(struct dvb_frontend* fe, struct dvb_frontend_parameters *fep)
641 {
642         return dib3000mb_set_frontend(fe, fep, 1);
643 }
644
645 static void dib3000mb_release(struct dvb_frontend* fe)
646 {
647         struct dib3000_state *state = fe->demodulator_priv;
648         kfree(state);
649 }
650
651 /* pid filter and transfer stuff */
652 static int dib3000mb_pid_control(struct dvb_frontend *fe,int index, int pid,int onoff)
653 {
654         struct dib3000_state *state = fe->demodulator_priv;
655         pid = (onoff ? pid | DIB3000_ACTIVATE_PID_FILTERING : 0);
656         wr(index+DIB3000MB_REG_FIRST_PID,pid);
657         return 0;
658 }
659
660 static int dib3000mb_fifo_control(struct dvb_frontend *fe, int onoff)
661 {
662         struct dib3000_state *state = fe->demodulator_priv;
663
664         deb_xfer("%s fifo\n",onoff ? "enabling" : "disabling");
665         if (onoff) {
666                 wr(DIB3000MB_REG_FIFO, DIB3000MB_FIFO_ACTIVATE);
667         } else {
668                 wr(DIB3000MB_REG_FIFO, DIB3000MB_FIFO_INHIBIT);
669         }
670         return 0;
671 }
672
673 static int dib3000mb_pid_parse(struct dvb_frontend *fe, int onoff)
674 {
675         struct dib3000_state *state = fe->demodulator_priv;
676         deb_xfer("%s pid parsing\n",onoff ? "enabling" : "disabling");
677         wr(DIB3000MB_REG_PID_PARSE,onoff);
678         return 0;
679 }
680
681 static int dib3000mb_tuner_pass_ctrl(struct dvb_frontend *fe, int onoff, u8 pll_addr)
682 {
683         struct dib3000_state *state = fe->demodulator_priv;
684         if (onoff) {
685                 wr(DIB3000MB_REG_TUNER, DIB3000_TUNER_WRITE_ENABLE(pll_addr));
686         } else {
687                 wr(DIB3000MB_REG_TUNER, DIB3000_TUNER_WRITE_DISABLE(pll_addr));
688         }
689         return 0;
690 }
691
692 static struct dvb_frontend_ops dib3000mb_ops;
693
694 struct dvb_frontend* dib3000mb_attach(const struct dib3000_config* config,
695                                       struct i2c_adapter* i2c, struct dib_fe_xfer_ops *xfer_ops)
696 {
697         struct dib3000_state* state = NULL;
698
699         /* allocate memory for the internal state */
700         state = kzalloc(sizeof(struct dib3000_state), GFP_KERNEL);
701         if (state == NULL)
702                 goto error;
703
704         /* setup the state */
705         state->i2c = i2c;
706         memcpy(&state->config,config,sizeof(struct dib3000_config));
707
708         /* check for the correct demod */
709         if (rd(DIB3000_REG_MANUFACTOR_ID) != DIB3000_I2C_ID_DIBCOM)
710                 goto error;
711
712         if (rd(DIB3000_REG_DEVICE_ID) != DIB3000MB_DEVICE_ID)
713                 goto error;
714
715         /* create dvb_frontend */
716         memcpy(&state->frontend.ops, &dib3000mb_ops, sizeof(struct dvb_frontend_ops));
717         state->frontend.demodulator_priv = state;
718
719         /* set the xfer operations */
720         xfer_ops->pid_parse = dib3000mb_pid_parse;
721         xfer_ops->fifo_ctrl = dib3000mb_fifo_control;
722         xfer_ops->pid_ctrl = dib3000mb_pid_control;
723         xfer_ops->tuner_pass_ctrl = dib3000mb_tuner_pass_ctrl;
724
725         return &state->frontend;
726
727 error:
728         kfree(state);
729         return NULL;
730 }
731
732 static struct dvb_frontend_ops dib3000mb_ops = {
733
734         .info = {
735                 .name                   = "DiBcom 3000M-B DVB-T",
736                 .type                   = FE_OFDM,
737                 .frequency_min          = 44250000,
738                 .frequency_max          = 867250000,
739                 .frequency_stepsize     = 62500,
740                 .caps = FE_CAN_INVERSION_AUTO |
741                                 FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
742                                 FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
743                                 FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
744                                 FE_CAN_TRANSMISSION_MODE_AUTO |
745                                 FE_CAN_GUARD_INTERVAL_AUTO |
746                                 FE_CAN_RECOVER |
747                                 FE_CAN_HIERARCHY_AUTO,
748         },
749
750         .release = dib3000mb_release,
751
752         .init = dib3000mb_fe_init_nonmobile,
753         .sleep = dib3000mb_sleep,
754
755         .set_frontend = dib3000mb_set_frontend_and_tuner,
756         .get_frontend = dib3000mb_get_frontend,
757         .get_tune_settings = dib3000mb_fe_get_tune_settings,
758
759         .read_status = dib3000mb_read_status,
760         .read_ber = dib3000mb_read_ber,
761         .read_signal_strength = dib3000mb_read_signal_strength,
762         .read_snr = dib3000mb_read_snr,
763         .read_ucblocks = dib3000mb_read_unc_blocks,
764 };
765
766 MODULE_AUTHOR(DRIVER_AUTHOR);
767 MODULE_DESCRIPTION(DRIVER_DESC);
768 MODULE_LICENSE("GPL");
769
770 EXPORT_SYMBOL(dib3000mb_attach);