forked from torvalds/linux
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathxc4000.c
1763 lines (1487 loc) · 44.6 KB
/
xc4000.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
* Driver for Xceive XC4000 "QAM/8VSB single chip tuner"
*
* Copyright (c) 2007 Xceive Corporation
* Copyright (c) 2007 Steven Toth <[email protected]>
* Copyright (c) 2009 Devin Heitmueller <[email protected]>
* Copyright (c) 2009 Davide Ferri <[email protected]>
* Copyright (c) 2010 Istvan Varga <[email protected]>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/videodev2.h>
#include <linux/delay.h>
#include <linux/dvb/frontend.h>
#include <linux/i2c.h>
#include <linux/mutex.h>
#include <asm/unaligned.h>
#include <media/dvb_frontend.h>
#include "xc4000.h"
#include "tuner-i2c.h"
#include "tuner-xc2028-types.h"
static int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Debugging level (0 to 2, default: 0 (off)).");
static int no_poweroff;
module_param(no_poweroff, int, 0644);
MODULE_PARM_DESC(no_poweroff, "Power management (1: disabled, 2: enabled, 0 (default): use device-specific default mode).");
static int audio_std;
module_param(audio_std, int, 0644);
MODULE_PARM_DESC(audio_std, "Audio standard. XC4000 audio decoder explicitly needs to know what audio standard is needed for some video standards with audio A2 or NICAM. The valid settings are a sum of:\n"
" 1: use NICAM/B or A2/B instead of NICAM/A or A2/A\n"
" 2: use A2 instead of NICAM or BTSC\n"
" 4: use SECAM/K3 instead of K1\n"
" 8: use PAL-D/K audio for SECAM-D/K\n"
"16: use FM radio input 1 instead of input 2\n"
"32: use mono audio (the lower three bits are ignored)");
static char firmware_name[30];
module_param_string(firmware_name, firmware_name, sizeof(firmware_name), 0);
MODULE_PARM_DESC(firmware_name, "Firmware file name. Allows overriding the default firmware name.");
static DEFINE_MUTEX(xc4000_list_mutex);
static LIST_HEAD(hybrid_tuner_instance_list);
#define dprintk(level, fmt, arg...) if (debug >= level) \
printk(KERN_INFO "%s: " fmt, "xc4000", ## arg)
/* struct for storing firmware table */
struct firmware_description {
unsigned int type;
v4l2_std_id id;
__u16 int_freq;
unsigned char *ptr;
unsigned int size;
};
struct firmware_properties {
unsigned int type;
v4l2_std_id id;
v4l2_std_id std_req;
__u16 int_freq;
unsigned int scode_table;
int scode_nr;
};
struct xc4000_priv {
struct tuner_i2c_props i2c_props;
struct list_head hybrid_tuner_instance_list;
struct firmware_description *firm;
int firm_size;
u32 if_khz;
u32 freq_hz, freq_offset;
u32 bandwidth;
u8 video_standard;
u8 rf_mode;
u8 default_pm;
u8 dvb_amplitude;
u8 set_smoothedcvbs;
u8 ignore_i2c_write_errors;
__u16 firm_version;
struct firmware_properties cur_fw;
__u16 hwmodel;
__u16 hwvers;
struct mutex lock;
};
#define XC4000_AUDIO_STD_B 1
#define XC4000_AUDIO_STD_A2 2
#define XC4000_AUDIO_STD_K3 4
#define XC4000_AUDIO_STD_L 8
#define XC4000_AUDIO_STD_INPUT1 16
#define XC4000_AUDIO_STD_MONO 32
#define XC4000_DEFAULT_FIRMWARE "dvb-fe-xc4000-1.4.fw"
#define XC4000_DEFAULT_FIRMWARE_NEW "dvb-fe-xc4000-1.4.1.fw"
/* Misc Defines */
#define MAX_TV_STANDARD 24
#define XC_MAX_I2C_WRITE_LENGTH 64
#define XC_POWERED_DOWN 0x80000000U
/* Signal Types */
#define XC_RF_MODE_AIR 0
#define XC_RF_MODE_CABLE 1
/* Product id */
#define XC_PRODUCT_ID_FW_NOT_LOADED 0x2000
#define XC_PRODUCT_ID_XC4000 0x0FA0
#define XC_PRODUCT_ID_XC4100 0x1004
/* Registers (Write-only) */
#define XREG_INIT 0x00
#define XREG_VIDEO_MODE 0x01
#define XREG_AUDIO_MODE 0x02
#define XREG_RF_FREQ 0x03
#define XREG_D_CODE 0x04
#define XREG_DIRECTSITTING_MODE 0x05
#define XREG_SEEK_MODE 0x06
#define XREG_POWER_DOWN 0x08
#define XREG_SIGNALSOURCE 0x0A
#define XREG_SMOOTHEDCVBS 0x0E
#define XREG_AMPLITUDE 0x10
/* Registers (Read-only) */
#define XREG_ADC_ENV 0x00
#define XREG_QUALITY 0x01
#define XREG_FRAME_LINES 0x02
#define XREG_HSYNC_FREQ 0x03
#define XREG_LOCK 0x04
#define XREG_FREQ_ERROR 0x05
#define XREG_SNR 0x06
#define XREG_VERSION 0x07
#define XREG_PRODUCT_ID 0x08
#define XREG_SIGNAL_LEVEL 0x0A
#define XREG_NOISE_LEVEL 0x0B
/*
Basic firmware description. This will remain with
the driver for documentation purposes.
This represents an I2C firmware file encoded as a
string of unsigned char. Format is as follows:
char[0 ]=len0_MSB -> len = len_MSB * 256 + len_LSB
char[1 ]=len0_LSB -> length of first write transaction
char[2 ]=data0 -> first byte to be sent
char[3 ]=data1
char[4 ]=data2
char[ ]=...
char[M ]=dataN -> last byte to be sent
char[M+1]=len1_MSB -> len = len_MSB * 256 + len_LSB
char[M+2]=len1_LSB -> length of second write transaction
char[M+3]=data0
char[M+4]=data1
...
etc.
The [len] value should be interpreted as follows:
len= len_MSB _ len_LSB
len=1111_1111_1111_1111 : End of I2C_SEQUENCE
len=0000_0000_0000_0000 : Reset command: Do hardware reset
len=0NNN_NNNN_NNNN_NNNN : Normal transaction: number of bytes = {1:32767)
len=1WWW_WWWW_WWWW_WWWW : Wait command: wait for {1:32767} ms
For the RESET and WAIT commands, the two following bytes will contain
immediately the length of the following transaction.
*/
struct XC_TV_STANDARD {
const char *Name;
u16 audio_mode;
u16 video_mode;
u16 int_freq;
};
/* Tuner standards */
#define XC4000_MN_NTSC_PAL_BTSC 0
#define XC4000_MN_NTSC_PAL_A2 1
#define XC4000_MN_NTSC_PAL_EIAJ 2
#define XC4000_MN_NTSC_PAL_Mono 3
#define XC4000_BG_PAL_A2 4
#define XC4000_BG_PAL_NICAM 5
#define XC4000_BG_PAL_MONO 6
#define XC4000_I_PAL_NICAM 7
#define XC4000_I_PAL_NICAM_MONO 8
#define XC4000_DK_PAL_A2 9
#define XC4000_DK_PAL_NICAM 10
#define XC4000_DK_PAL_MONO 11
#define XC4000_DK_SECAM_A2DK1 12
#define XC4000_DK_SECAM_A2LDK3 13
#define XC4000_DK_SECAM_A2MONO 14
#define XC4000_DK_SECAM_NICAM 15
#define XC4000_L_SECAM_NICAM 16
#define XC4000_LC_SECAM_NICAM 17
#define XC4000_DTV6 18
#define XC4000_DTV8 19
#define XC4000_DTV7_8 20
#define XC4000_DTV7 21
#define XC4000_FM_Radio_INPUT2 22
#define XC4000_FM_Radio_INPUT1 23
static struct XC_TV_STANDARD xc4000_standard[MAX_TV_STANDARD] = {
{"M/N-NTSC/PAL-BTSC", 0x0000, 0x80A0, 4500},
{"M/N-NTSC/PAL-A2", 0x0000, 0x80A0, 4600},
{"M/N-NTSC/PAL-EIAJ", 0x0040, 0x80A0, 4500},
{"M/N-NTSC/PAL-Mono", 0x0078, 0x80A0, 4500},
{"B/G-PAL-A2", 0x0000, 0x8159, 5640},
{"B/G-PAL-NICAM", 0x0004, 0x8159, 5740},
{"B/G-PAL-MONO", 0x0078, 0x8159, 5500},
{"I-PAL-NICAM", 0x0080, 0x8049, 6240},
{"I-PAL-NICAM-MONO", 0x0078, 0x8049, 6000},
{"D/K-PAL-A2", 0x0000, 0x8049, 6380},
{"D/K-PAL-NICAM", 0x0080, 0x8049, 6200},
{"D/K-PAL-MONO", 0x0078, 0x8049, 6500},
{"D/K-SECAM-A2 DK1", 0x0000, 0x8049, 6340},
{"D/K-SECAM-A2 L/DK3", 0x0000, 0x8049, 6000},
{"D/K-SECAM-A2 MONO", 0x0078, 0x8049, 6500},
{"D/K-SECAM-NICAM", 0x0080, 0x8049, 6200},
{"L-SECAM-NICAM", 0x8080, 0x0009, 6200},
{"L'-SECAM-NICAM", 0x8080, 0x4009, 6200},
{"DTV6", 0x00C0, 0x8002, 0},
{"DTV8", 0x00C0, 0x800B, 0},
{"DTV7/8", 0x00C0, 0x801B, 0},
{"DTV7", 0x00C0, 0x8007, 0},
{"FM Radio-INPUT2", 0x0008, 0x9800, 10700},
{"FM Radio-INPUT1", 0x0008, 0x9000, 10700}
};
static int xc4000_readreg(struct xc4000_priv *priv, u16 reg, u16 *val);
static int xc4000_tuner_reset(struct dvb_frontend *fe);
static void xc_debug_dump(struct xc4000_priv *priv);
static int xc_send_i2c_data(struct xc4000_priv *priv, u8 *buf, int len)
{
struct i2c_msg msg = { .addr = priv->i2c_props.addr,
.flags = 0, .buf = buf, .len = len };
if (i2c_transfer(priv->i2c_props.adap, &msg, 1) != 1) {
if (priv->ignore_i2c_write_errors == 0) {
printk(KERN_ERR "xc4000: I2C write failed (len=%i)\n",
len);
if (len == 4) {
printk(KERN_ERR "bytes %*ph\n", 4, buf);
}
return -EREMOTEIO;
}
}
return 0;
}
static int xc4000_tuner_reset(struct dvb_frontend *fe)
{
struct xc4000_priv *priv = fe->tuner_priv;
int ret;
dprintk(1, "%s()\n", __func__);
if (fe->callback) {
ret = fe->callback(((fe->dvb) && (fe->dvb->priv)) ?
fe->dvb->priv :
priv->i2c_props.adap->algo_data,
DVB_FRONTEND_COMPONENT_TUNER,
XC4000_TUNER_RESET, 0);
if (ret) {
printk(KERN_ERR "xc4000: reset failed\n");
return -EREMOTEIO;
}
} else {
printk(KERN_ERR "xc4000: no tuner reset callback function, fatal\n");
return -EINVAL;
}
return 0;
}
static int xc_write_reg(struct xc4000_priv *priv, u16 regAddr, u16 i2cData)
{
u8 buf[4];
int result;
buf[0] = (regAddr >> 8) & 0xFF;
buf[1] = regAddr & 0xFF;
buf[2] = (i2cData >> 8) & 0xFF;
buf[3] = i2cData & 0xFF;
result = xc_send_i2c_data(priv, buf, 4);
return result;
}
static int xc_load_i2c_sequence(struct dvb_frontend *fe, const u8 *i2c_sequence)
{
struct xc4000_priv *priv = fe->tuner_priv;
int i, nbytes_to_send, result;
unsigned int len, pos, index;
u8 buf[XC_MAX_I2C_WRITE_LENGTH];
index = 0;
while ((i2c_sequence[index] != 0xFF) ||
(i2c_sequence[index + 1] != 0xFF)) {
len = i2c_sequence[index] * 256 + i2c_sequence[index+1];
if (len == 0x0000) {
/* RESET command */
/* NOTE: this is ignored, as the reset callback was */
/* already called by check_firmware() */
index += 2;
} else if (len & 0x8000) {
/* WAIT command */
msleep(len & 0x7FFF);
index += 2;
} else {
/* Send i2c data whilst ensuring individual transactions
* do not exceed XC_MAX_I2C_WRITE_LENGTH bytes.
*/
index += 2;
buf[0] = i2c_sequence[index];
buf[1] = i2c_sequence[index + 1];
pos = 2;
while (pos < len) {
if ((len - pos) > XC_MAX_I2C_WRITE_LENGTH - 2)
nbytes_to_send =
XC_MAX_I2C_WRITE_LENGTH;
else
nbytes_to_send = (len - pos + 2);
for (i = 2; i < nbytes_to_send; i++) {
buf[i] = i2c_sequence[index + pos +
i - 2];
}
result = xc_send_i2c_data(priv, buf,
nbytes_to_send);
if (result != 0)
return result;
pos += nbytes_to_send - 2;
}
index += len;
}
}
return 0;
}
static int xc_set_tv_standard(struct xc4000_priv *priv,
u16 video_mode, u16 audio_mode)
{
int ret;
dprintk(1, "%s(0x%04x,0x%04x)\n", __func__, video_mode, audio_mode);
dprintk(1, "%s() Standard = %s\n",
__func__,
xc4000_standard[priv->video_standard].Name);
/* Don't complain when the request fails because of i2c stretching */
priv->ignore_i2c_write_errors = 1;
ret = xc_write_reg(priv, XREG_VIDEO_MODE, video_mode);
if (ret == 0)
ret = xc_write_reg(priv, XREG_AUDIO_MODE, audio_mode);
priv->ignore_i2c_write_errors = 0;
return ret;
}
static int xc_set_signal_source(struct xc4000_priv *priv, u16 rf_mode)
{
dprintk(1, "%s(%d) Source = %s\n", __func__, rf_mode,
rf_mode == XC_RF_MODE_AIR ? "ANTENNA" : "CABLE");
if ((rf_mode != XC_RF_MODE_AIR) && (rf_mode != XC_RF_MODE_CABLE)) {
rf_mode = XC_RF_MODE_CABLE;
printk(KERN_ERR
"%s(), Invalid mode, defaulting to CABLE",
__func__);
}
return xc_write_reg(priv, XREG_SIGNALSOURCE, rf_mode);
}
static const struct dvb_tuner_ops xc4000_tuner_ops;
static int xc_set_rf_frequency(struct xc4000_priv *priv, u32 freq_hz)
{
u16 freq_code;
dprintk(1, "%s(%u)\n", __func__, freq_hz);
if ((freq_hz > xc4000_tuner_ops.info.frequency_max_hz) ||
(freq_hz < xc4000_tuner_ops.info.frequency_min_hz))
return -EINVAL;
freq_code = (u16)(freq_hz / 15625);
/* WAS: Starting in firmware version 1.1.44, Xceive recommends using the
FINERFREQ for all normal tuning (the doc indicates reg 0x03 should
only be used for fast scanning for channel lock) */
/* WAS: XREG_FINERFREQ */
return xc_write_reg(priv, XREG_RF_FREQ, freq_code);
}
static int xc_get_adc_envelope(struct xc4000_priv *priv, u16 *adc_envelope)
{
return xc4000_readreg(priv, XREG_ADC_ENV, adc_envelope);
}
static int xc_get_frequency_error(struct xc4000_priv *priv, u32 *freq_error_hz)
{
int result;
u16 regData;
u32 tmp;
result = xc4000_readreg(priv, XREG_FREQ_ERROR, ®Data);
if (result != 0)
return result;
tmp = (u32)regData & 0xFFFFU;
tmp = (tmp < 0x8000U ? tmp : 0x10000U - tmp);
(*freq_error_hz) = tmp * 15625;
return result;
}
static int xc_get_lock_status(struct xc4000_priv *priv, u16 *lock_status)
{
return xc4000_readreg(priv, XREG_LOCK, lock_status);
}
static int xc_get_version(struct xc4000_priv *priv,
u8 *hw_majorversion, u8 *hw_minorversion,
u8 *fw_majorversion, u8 *fw_minorversion)
{
u16 data;
int result;
result = xc4000_readreg(priv, XREG_VERSION, &data);
if (result != 0)
return result;
(*hw_majorversion) = (data >> 12) & 0x0F;
(*hw_minorversion) = (data >> 8) & 0x0F;
(*fw_majorversion) = (data >> 4) & 0x0F;
(*fw_minorversion) = data & 0x0F;
return 0;
}
static int xc_get_hsync_freq(struct xc4000_priv *priv, u32 *hsync_freq_hz)
{
u16 regData;
int result;
result = xc4000_readreg(priv, XREG_HSYNC_FREQ, ®Data);
if (result != 0)
return result;
(*hsync_freq_hz) = ((regData & 0x0fff) * 763)/100;
return result;
}
static int xc_get_frame_lines(struct xc4000_priv *priv, u16 *frame_lines)
{
return xc4000_readreg(priv, XREG_FRAME_LINES, frame_lines);
}
static int xc_get_quality(struct xc4000_priv *priv, u16 *quality)
{
return xc4000_readreg(priv, XREG_QUALITY, quality);
}
static int xc_get_signal_level(struct xc4000_priv *priv, u16 *signal)
{
return xc4000_readreg(priv, XREG_SIGNAL_LEVEL, signal);
}
static int xc_get_noise_level(struct xc4000_priv *priv, u16 *noise)
{
return xc4000_readreg(priv, XREG_NOISE_LEVEL, noise);
}
static u16 xc_wait_for_lock(struct xc4000_priv *priv)
{
u16 lock_state = 0;
int watchdog_count = 40;
while ((lock_state == 0) && (watchdog_count > 0)) {
xc_get_lock_status(priv, &lock_state);
if (lock_state != 1) {
msleep(5);
watchdog_count--;
}
}
return lock_state;
}
static int xc_tune_channel(struct xc4000_priv *priv, u32 freq_hz)
{
int found = 1;
int result;
dprintk(1, "%s(%u)\n", __func__, freq_hz);
/* Don't complain when the request fails because of i2c stretching */
priv->ignore_i2c_write_errors = 1;
result = xc_set_rf_frequency(priv, freq_hz);
priv->ignore_i2c_write_errors = 0;
if (result != 0)
return 0;
/* wait for lock only in analog TV mode */
if ((priv->cur_fw.type & (FM | DTV6 | DTV7 | DTV78 | DTV8)) == 0) {
if (xc_wait_for_lock(priv) != 1)
found = 0;
}
/* Wait for stats to stabilize.
* Frame Lines needs two frame times after initial lock
* before it is valid.
*/
msleep(debug ? 100 : 10);
if (debug)
xc_debug_dump(priv);
return found;
}
static int xc4000_readreg(struct xc4000_priv *priv, u16 reg, u16 *val)
{
u8 buf[2] = { reg >> 8, reg & 0xff };
u8 bval[2] = { 0, 0 };
struct i2c_msg msg[2] = {
{ .addr = priv->i2c_props.addr,
.flags = 0, .buf = &buf[0], .len = 2 },
{ .addr = priv->i2c_props.addr,
.flags = I2C_M_RD, .buf = &bval[0], .len = 2 },
};
if (i2c_transfer(priv->i2c_props.adap, msg, 2) != 2) {
printk(KERN_ERR "xc4000: I2C read failed\n");
return -EREMOTEIO;
}
*val = (bval[0] << 8) | bval[1];
return 0;
}
#define dump_firm_type(t) dump_firm_type_and_int_freq(t, 0)
static void dump_firm_type_and_int_freq(unsigned int type, u16 int_freq)
{
if (type & BASE)
printk(KERN_CONT "BASE ");
if (type & INIT1)
printk(KERN_CONT "INIT1 ");
if (type & F8MHZ)
printk(KERN_CONT "F8MHZ ");
if (type & MTS)
printk(KERN_CONT "MTS ");
if (type & D2620)
printk(KERN_CONT "D2620 ");
if (type & D2633)
printk(KERN_CONT "D2633 ");
if (type & DTV6)
printk(KERN_CONT "DTV6 ");
if (type & QAM)
printk(KERN_CONT "QAM ");
if (type & DTV7)
printk(KERN_CONT "DTV7 ");
if (type & DTV78)
printk(KERN_CONT "DTV78 ");
if (type & DTV8)
printk(KERN_CONT "DTV8 ");
if (type & FM)
printk(KERN_CONT "FM ");
if (type & INPUT1)
printk(KERN_CONT "INPUT1 ");
if (type & LCD)
printk(KERN_CONT "LCD ");
if (type & NOGD)
printk(KERN_CONT "NOGD ");
if (type & MONO)
printk(KERN_CONT "MONO ");
if (type & ATSC)
printk(KERN_CONT "ATSC ");
if (type & IF)
printk(KERN_CONT "IF ");
if (type & LG60)
printk(KERN_CONT "LG60 ");
if (type & ATI638)
printk(KERN_CONT "ATI638 ");
if (type & OREN538)
printk(KERN_CONT "OREN538 ");
if (type & OREN36)
printk(KERN_CONT "OREN36 ");
if (type & TOYOTA388)
printk(KERN_CONT "TOYOTA388 ");
if (type & TOYOTA794)
printk(KERN_CONT "TOYOTA794 ");
if (type & DIBCOM52)
printk(KERN_CONT "DIBCOM52 ");
if (type & ZARLINK456)
printk(KERN_CONT "ZARLINK456 ");
if (type & CHINA)
printk(KERN_CONT "CHINA ");
if (type & F6MHZ)
printk(KERN_CONT "F6MHZ ");
if (type & INPUT2)
printk(KERN_CONT "INPUT2 ");
if (type & SCODE)
printk(KERN_CONT "SCODE ");
if (type & HAS_IF)
printk(KERN_CONT "HAS_IF_%d ", int_freq);
}
static int seek_firmware(struct dvb_frontend *fe, unsigned int type,
v4l2_std_id *id)
{
struct xc4000_priv *priv = fe->tuner_priv;
int i, best_i = -1;
unsigned int best_nr_diffs = 255U;
if (!priv->firm) {
printk(KERN_ERR "Error! firmware not loaded\n");
return -EINVAL;
}
if (((type & ~SCODE) == 0) && (*id == 0))
*id = V4L2_STD_PAL;
/* Seek for generic video standard match */
for (i = 0; i < priv->firm_size; i++) {
v4l2_std_id id_diff_mask =
(priv->firm[i].id ^ (*id)) & (*id);
unsigned int type_diff_mask =
(priv->firm[i].type ^ type)
& (BASE_TYPES | DTV_TYPES | LCD | NOGD | MONO | SCODE);
unsigned int nr_diffs;
if (type_diff_mask
& (BASE | INIT1 | FM | DTV6 | DTV7 | DTV78 | DTV8 | SCODE))
continue;
nr_diffs = hweight64(id_diff_mask) + hweight32(type_diff_mask);
if (!nr_diffs) /* Supports all the requested standards */
goto found;
if (nr_diffs < best_nr_diffs) {
best_nr_diffs = nr_diffs;
best_i = i;
}
}
/* FIXME: Would make sense to seek for type "hint" match ? */
if (best_i < 0) {
i = -ENOENT;
goto ret;
}
if (best_nr_diffs > 0U) {
printk(KERN_WARNING
"Selecting best matching firmware (%u bits differ) for type=(%x), id %016llx:\n",
best_nr_diffs, type, (unsigned long long)*id);
i = best_i;
}
found:
*id = priv->firm[i].id;
ret:
if (debug) {
printk(KERN_DEBUG "%s firmware for type=",
(i < 0) ? "Can't find" : "Found");
dump_firm_type(type);
printk(KERN_DEBUG "(%x), id %016llx.\n", type, (unsigned long long)*id);
}
return i;
}
static int load_firmware(struct dvb_frontend *fe, unsigned int type,
v4l2_std_id *id)
{
struct xc4000_priv *priv = fe->tuner_priv;
int pos, rc;
unsigned char *p;
pos = seek_firmware(fe, type, id);
if (pos < 0)
return pos;
p = priv->firm[pos].ptr;
/* Don't complain when the request fails because of i2c stretching */
priv->ignore_i2c_write_errors = 1;
rc = xc_load_i2c_sequence(fe, p);
priv->ignore_i2c_write_errors = 0;
return rc;
}
static int xc4000_fwupload(struct dvb_frontend *fe)
{
struct xc4000_priv *priv = fe->tuner_priv;
const struct firmware *fw = NULL;
const unsigned char *p, *endp;
int rc = 0;
int n, n_array;
char name[33];
const char *fname;
if (firmware_name[0] != '\0') {
fname = firmware_name;
dprintk(1, "Reading custom firmware %s\n", fname);
rc = request_firmware(&fw, fname,
priv->i2c_props.adap->dev.parent);
} else {
fname = XC4000_DEFAULT_FIRMWARE_NEW;
dprintk(1, "Trying to read firmware %s\n", fname);
rc = request_firmware(&fw, fname,
priv->i2c_props.adap->dev.parent);
if (rc == -ENOENT) {
fname = XC4000_DEFAULT_FIRMWARE;
dprintk(1, "Trying to read firmware %s\n", fname);
rc = request_firmware(&fw, fname,
priv->i2c_props.adap->dev.parent);
}
}
if (rc < 0) {
if (rc == -ENOENT)
printk(KERN_ERR "Error: firmware %s not found.\n", fname);
else
printk(KERN_ERR "Error %d while requesting firmware %s\n",
rc, fname);
return rc;
}
dprintk(1, "Loading Firmware: %s\n", fname);
p = fw->data;
endp = p + fw->size;
if (fw->size < sizeof(name) - 1 + 2 + 2) {
printk(KERN_ERR "Error: firmware file %s has invalid size!\n",
fname);
goto corrupt;
}
memcpy(name, p, sizeof(name) - 1);
name[sizeof(name) - 1] = '\0';
p += sizeof(name) - 1;
priv->firm_version = get_unaligned_le16(p);
p += 2;
n_array = get_unaligned_le16(p);
p += 2;
dprintk(1, "Loading %d firmware images from %s, type: %s, ver %d.%d\n",
n_array, fname, name,
priv->firm_version >> 8, priv->firm_version & 0xff);
priv->firm = kcalloc(n_array, sizeof(*priv->firm), GFP_KERNEL);
if (priv->firm == NULL) {
printk(KERN_ERR "Not enough memory to load firmware file.\n");
rc = -ENOMEM;
goto done;
}
priv->firm_size = n_array;
n = -1;
while (p < endp) {
__u32 type, size;
v4l2_std_id id;
__u16 int_freq = 0;
n++;
if (n >= n_array) {
printk(KERN_ERR "More firmware images in file than were expected!\n");
goto corrupt;
}
/* Checks if there's enough bytes to read */
if (endp - p < sizeof(type) + sizeof(id) + sizeof(size))
goto header;
type = get_unaligned_le32(p);
p += sizeof(type);
id = get_unaligned_le64(p);
p += sizeof(id);
if (type & HAS_IF) {
int_freq = get_unaligned_le16(p);
p += sizeof(int_freq);
if (endp - p < sizeof(size))
goto header;
}
size = get_unaligned_le32(p);
p += sizeof(size);
if (!size || size > endp - p) {
printk(KERN_ERR "Firmware type (%x), id %llx is corrupted (size=%zd, expected %d)\n",
type, (unsigned long long)id,
endp - p, size);
goto corrupt;
}
priv->firm[n].ptr = kzalloc(size, GFP_KERNEL);
if (priv->firm[n].ptr == NULL) {
printk(KERN_ERR "Not enough memory to load firmware file.\n");
rc = -ENOMEM;
goto done;
}
if (debug) {
printk(KERN_DEBUG "Reading firmware type ");
dump_firm_type_and_int_freq(type, int_freq);
printk(KERN_DEBUG "(%x), id %llx, size=%d.\n",
type, (unsigned long long)id, size);
}
memcpy(priv->firm[n].ptr, p, size);
priv->firm[n].type = type;
priv->firm[n].id = id;
priv->firm[n].size = size;
priv->firm[n].int_freq = int_freq;
p += size;
}
if (n + 1 != priv->firm_size) {
printk(KERN_ERR "Firmware file is incomplete!\n");
goto corrupt;
}
goto done;
header:
printk(KERN_ERR "Firmware header is incomplete!\n");
corrupt:
rc = -EINVAL;
printk(KERN_ERR "Error: firmware file is corrupted!\n");
done:
release_firmware(fw);
if (rc == 0)
dprintk(1, "Firmware files loaded.\n");
return rc;
}
static int load_scode(struct dvb_frontend *fe, unsigned int type,
v4l2_std_id *id, __u16 int_freq, int scode)
{
struct xc4000_priv *priv = fe->tuner_priv;
int pos, rc;
unsigned char *p;
u8 scode_buf[13];
u8 indirect_mode[5];
dprintk(1, "%s called int_freq=%d\n", __func__, int_freq);
if (!int_freq) {
pos = seek_firmware(fe, type, id);
if (pos < 0)
return pos;
} else {
for (pos = 0; pos < priv->firm_size; pos++) {
if ((priv->firm[pos].int_freq == int_freq) &&
(priv->firm[pos].type & HAS_IF))
break;
}
if (pos == priv->firm_size)
return -ENOENT;
}
p = priv->firm[pos].ptr;
if (priv->firm[pos].size != 12 * 16 || scode >= 16)
return -EINVAL;
p += 12 * scode;
if (debug) {
tuner_info("Loading SCODE for type=");
dump_firm_type_and_int_freq(priv->firm[pos].type,
priv->firm[pos].int_freq);
printk(KERN_CONT "(%x), id %016llx.\n", priv->firm[pos].type,
(unsigned long long)*id);
}
scode_buf[0] = 0x00;
memcpy(&scode_buf[1], p, 12);
/* Enter direct-mode */
rc = xc_write_reg(priv, XREG_DIRECTSITTING_MODE, 0);
if (rc < 0) {
printk(KERN_ERR "failed to put device into direct mode!\n");
return -EIO;
}
rc = xc_send_i2c_data(priv, scode_buf, 13);
if (rc != 0) {
/* Even if the send failed, make sure we set back to indirect
mode */
printk(KERN_ERR "Failed to set scode %d\n", rc);
}
/* Switch back to indirect-mode */
memset(indirect_mode, 0, sizeof(indirect_mode));
indirect_mode[4] = 0x88;
xc_send_i2c_data(priv, indirect_mode, sizeof(indirect_mode));
msleep(10);
return 0;
}
static int check_firmware(struct dvb_frontend *fe, unsigned int type,
v4l2_std_id std, __u16 int_freq)
{
struct xc4000_priv *priv = fe->tuner_priv;
struct firmware_properties new_fw;
int rc = 0, is_retry = 0;
u16 hwmodel;
v4l2_std_id std0;
u8 hw_major = 0, hw_minor = 0, fw_major = 0, fw_minor = 0;
dprintk(1, "%s called\n", __func__);
if (!priv->firm) {
rc = xc4000_fwupload(fe);
if (rc < 0)
return rc;
}
retry:
new_fw.type = type;
new_fw.id = std;
new_fw.std_req = std;
new_fw.scode_table = SCODE;
new_fw.scode_nr = 0;
new_fw.int_freq = int_freq;
dprintk(1, "checking firmware, user requested type=");
if (debug) {
dump_firm_type(new_fw.type);
printk(KERN_CONT "(%x), id %016llx, ", new_fw.type,
(unsigned long long)new_fw.std_req);
if (!int_freq)
printk(KERN_CONT "scode_tbl ");
else
printk(KERN_CONT "int_freq %d, ", new_fw.int_freq);
printk(KERN_CONT "scode_nr %d\n", new_fw.scode_nr);
}
/* No need to reload base firmware if it matches */
if (priv->cur_fw.type & BASE) {
dprintk(1, "BASE firmware not changed.\n");
goto skip_base;
}
/* Updating BASE - forget about all currently loaded firmware */
memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));
/* Reset is needed before loading firmware */
rc = xc4000_tuner_reset(fe);
if (rc < 0)
goto fail;
/* BASE firmwares are all std0 */
std0 = 0;
rc = load_firmware(fe, BASE, &std0);
if (rc < 0) {
printk(KERN_ERR "Error %d while loading base firmware\n", rc);
goto fail;
}
/* Load INIT1, if needed */
dprintk(1, "Load init1 firmware, if exists\n");
rc = load_firmware(fe, BASE | INIT1, &std0);
if (rc == -ENOENT)
rc = load_firmware(fe, BASE | INIT1, &std0);
if (rc < 0 && rc != -ENOENT) {
tuner_err("Error %d while loading init1 firmware\n",