V4L/DVB: drivers/media/dvb/frontends/stv090x.c: fix use-uninitlalised
[linux-2.6.git] / drivers / media / dvb / frontends / stv090x.c
1 /*
2         STV0900/0903 Multistandard Broadcast Frontend driver
3         Copyright (C) Manu Abraham <abraham.manu@gmail.com>
4
5         Copyright (C) ST Microelectronics
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
18         along with this program; if not, write to the Free Software
19         Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 */
21
22 #include <linux/init.h>
23 #include <linux/kernel.h>
24 #include <linux/module.h>
25 #include <linux/string.h>
26 #include <linux/mutex.h>
27
28 #include <linux/dvb/frontend.h>
29 #include "dvb_frontend.h"
30
31 #include "stv6110x.h" /* for demodulator internal modes */
32
33 #include "stv090x_reg.h"
34 #include "stv090x.h"
35 #include "stv090x_priv.h"
36
37 static unsigned int verbose;
38 module_param(verbose, int, 0644);
39
40 /* internal params node */
41 struct stv090x_dev {
42         /* pointer for internal params, one for each pair of demods */
43         struct stv090x_internal         *internal;
44         struct stv090x_dev              *next_dev;
45 };
46
47 /* first internal params */
48 static struct stv090x_dev *stv090x_first_dev;
49
50 /* find chip by i2c adapter and i2c address */
51 static struct stv090x_dev *find_dev(struct i2c_adapter *i2c_adap,
52                                         u8 i2c_addr)
53 {
54         struct stv090x_dev *temp_dev = stv090x_first_dev;
55
56         /*
57          Search of the last stv0900 chip or
58          find it by i2c adapter and i2c address */
59         while ((temp_dev != NULL) &&
60                 ((temp_dev->internal->i2c_adap != i2c_adap) ||
61                 (temp_dev->internal->i2c_addr != i2c_addr))) {
62
63                 temp_dev = temp_dev->next_dev;
64         }
65
66         return temp_dev;
67 }
68
69 /* deallocating chip */
70 static void remove_dev(struct stv090x_internal *internal)
71 {
72         struct stv090x_dev *prev_dev = stv090x_first_dev;
73         struct stv090x_dev *del_dev = find_dev(internal->i2c_adap,
74                                                 internal->i2c_addr);
75
76         if (del_dev != NULL) {
77                 if (del_dev == stv090x_first_dev) {
78                         stv090x_first_dev = del_dev->next_dev;
79                 } else {
80                         while (prev_dev->next_dev != del_dev)
81                                 prev_dev = prev_dev->next_dev;
82
83                         prev_dev->next_dev = del_dev->next_dev;
84                 }
85
86                 kfree(del_dev);
87         }
88 }
89
90 /* allocating new chip */
91 static struct stv090x_dev *append_internal(struct stv090x_internal *internal)
92 {
93         struct stv090x_dev *new_dev;
94         struct stv090x_dev *temp_dev;
95
96         new_dev = kmalloc(sizeof(struct stv090x_dev), GFP_KERNEL);
97         if (new_dev != NULL) {
98                 new_dev->internal = internal;
99                 new_dev->next_dev = NULL;
100
101                 /* append to list */
102                 if (stv090x_first_dev == NULL) {
103                         stv090x_first_dev = new_dev;
104                 } else {
105                         temp_dev = stv090x_first_dev;
106                         while (temp_dev->next_dev != NULL)
107                                 temp_dev = temp_dev->next_dev;
108
109                         temp_dev->next_dev = new_dev;
110                 }
111         }
112
113         return new_dev;
114 }
115
116
117 /* DVBS1 and DSS C/N Lookup table */
118 static const struct stv090x_tab stv090x_s1cn_tab[] = {
119         {   0, 8917 }, /*  0.0dB */
120         {   5, 8801 }, /*  0.5dB */
121         {  10, 8667 }, /*  1.0dB */
122         {  15, 8522 }, /*  1.5dB */
123         {  20, 8355 }, /*  2.0dB */
124         {  25, 8175 }, /*  2.5dB */
125         {  30, 7979 }, /*  3.0dB */
126         {  35, 7763 }, /*  3.5dB */
127         {  40, 7530 }, /*  4.0dB */
128         {  45, 7282 }, /*  4.5dB */
129         {  50, 7026 }, /*  5.0dB */
130         {  55, 6781 }, /*  5.5dB */
131         {  60, 6514 }, /*  6.0dB */
132         {  65, 6241 }, /*  6.5dB */
133         {  70, 5965 }, /*  7.0dB */
134         {  75, 5690 }, /*  7.5dB */
135         {  80, 5424 }, /*  8.0dB */
136         {  85, 5161 }, /*  8.5dB */
137         {  90, 4902 }, /*  9.0dB */
138         {  95, 4654 }, /*  9.5dB */
139         { 100, 4417 }, /* 10.0dB */
140         { 105, 4186 }, /* 10.5dB */
141         { 110, 3968 }, /* 11.0dB */
142         { 115, 3757 }, /* 11.5dB */
143         { 120, 3558 }, /* 12.0dB */
144         { 125, 3366 }, /* 12.5dB */
145         { 130, 3185 }, /* 13.0dB */
146         { 135, 3012 }, /* 13.5dB */
147         { 140, 2850 }, /* 14.0dB */
148         { 145, 2698 }, /* 14.5dB */
149         { 150, 2550 }, /* 15.0dB */
150         { 160, 2283 }, /* 16.0dB */
151         { 170, 2042 }, /* 17.0dB */
152         { 180, 1827 }, /* 18.0dB */
153         { 190, 1636 }, /* 19.0dB */
154         { 200, 1466 }, /* 20.0dB */
155         { 210, 1315 }, /* 21.0dB */
156         { 220, 1181 }, /* 22.0dB */
157         { 230, 1064 }, /* 23.0dB */
158         { 240,  960 }, /* 24.0dB */
159         { 250,  869 }, /* 25.0dB */
160         { 260,  792 }, /* 26.0dB */
161         { 270,  724 }, /* 27.0dB */
162         { 280,  665 }, /* 28.0dB */
163         { 290,  616 }, /* 29.0dB */
164         { 300,  573 }, /* 30.0dB */
165         { 310,  537 }, /* 31.0dB */
166         { 320,  507 }, /* 32.0dB */
167         { 330,  483 }, /* 33.0dB */
168         { 400,  398 }, /* 40.0dB */
169         { 450,  381 }, /* 45.0dB */
170         { 500,  377 }  /* 50.0dB */
171 };
172
173 /* DVBS2 C/N Lookup table */
174 static const struct stv090x_tab stv090x_s2cn_tab[] = {
175         { -30, 13348 }, /* -3.0dB */
176         { -20, 12640 }, /* -2d.0B */
177         { -10, 11883 }, /* -1.0dB */
178         {   0, 11101 }, /* -0.0dB */
179         {   5, 10718 }, /*  0.5dB */
180         {  10, 10339 }, /*  1.0dB */
181         {  15,  9947 }, /*  1.5dB */
182         {  20,  9552 }, /*  2.0dB */
183         {  25,  9183 }, /*  2.5dB */
184         {  30,  8799 }, /*  3.0dB */
185         {  35,  8422 }, /*  3.5dB */
186         {  40,  8062 }, /*  4.0dB */
187         {  45,  7707 }, /*  4.5dB */
188         {  50,  7353 }, /*  5.0dB */
189         {  55,  7025 }, /*  5.5dB */
190         {  60,  6684 }, /*  6.0dB */
191         {  65,  6331 }, /*  6.5dB */
192         {  70,  6036 }, /*  7.0dB */
193         {  75,  5727 }, /*  7.5dB */
194         {  80,  5437 }, /*  8.0dB */
195         {  85,  5164 }, /*  8.5dB */
196         {  90,  4902 }, /*  9.0dB */
197         {  95,  4653 }, /*  9.5dB */
198         { 100,  4408 }, /* 10.0dB */
199         { 105,  4187 }, /* 10.5dB */
200         { 110,  3961 }, /* 11.0dB */
201         { 115,  3751 }, /* 11.5dB */
202         { 120,  3558 }, /* 12.0dB */
203         { 125,  3368 }, /* 12.5dB */
204         { 130,  3191 }, /* 13.0dB */
205         { 135,  3017 }, /* 13.5dB */
206         { 140,  2862 }, /* 14.0dB */
207         { 145,  2710 }, /* 14.5dB */
208         { 150,  2565 }, /* 15.0dB */
209         { 160,  2300 }, /* 16.0dB */
210         { 170,  2058 }, /* 17.0dB */
211         { 180,  1849 }, /* 18.0dB */
212         { 190,  1663 }, /* 19.0dB */
213         { 200,  1495 }, /* 20.0dB */
214         { 210,  1349 }, /* 21.0dB */
215         { 220,  1222 }, /* 22.0dB */
216         { 230,  1110 }, /* 23.0dB */
217         { 240,  1011 }, /* 24.0dB */
218         { 250,   925 }, /* 25.0dB */
219         { 260,   853 }, /* 26.0dB */
220         { 270,   789 }, /* 27.0dB */
221         { 280,   734 }, /* 28.0dB */
222         { 290,   690 }, /* 29.0dB */
223         { 300,   650 }, /* 30.0dB */
224         { 310,   619 }, /* 31.0dB */
225         { 320,   593 }, /* 32.0dB */
226         { 330,   571 }, /* 33.0dB */
227         { 400,   498 }, /* 40.0dB */
228         { 450,   484 }, /* 45.0dB */
229         { 500,   481 }  /* 50.0dB */
230 };
231
232 /* RF level C/N lookup table */
233 static const struct stv090x_tab stv090x_rf_tab[] = {
234         {  -5, 0xcaa1 }, /*  -5dBm */
235         { -10, 0xc229 }, /* -10dBm */
236         { -15, 0xbb08 }, /* -15dBm */
237         { -20, 0xb4bc }, /* -20dBm */
238         { -25, 0xad5a }, /* -25dBm */
239         { -30, 0xa298 }, /* -30dBm */
240         { -35, 0x98a8 }, /* -35dBm */
241         { -40, 0x8389 }, /* -40dBm */
242         { -45, 0x59be }, /* -45dBm */
243         { -50, 0x3a14 }, /* -50dBm */
244         { -55, 0x2d11 }, /* -55dBm */
245         { -60, 0x210d }, /* -60dBm */
246         { -65, 0xa14f }, /* -65dBm */
247         { -70, 0x07aa }  /* -70dBm */
248 };
249
250
251 static struct stv090x_reg stv0900_initval[] = {
252
253         { STV090x_OUTCFG,               0x00 },
254         { STV090x_MODECFG,              0xff },
255         { STV090x_AGCRF1CFG,            0x11 },
256         { STV090x_AGCRF2CFG,            0x13 },
257         { STV090x_TSGENERAL1X,          0x14 },
258         { STV090x_TSTTNR2,              0x21 },
259         { STV090x_TSTTNR4,              0x21 },
260         { STV090x_P2_DISTXCTL,          0x22 },
261         { STV090x_P2_F22TX,             0xc0 },
262         { STV090x_P2_F22RX,             0xc0 },
263         { STV090x_P2_DISRXCTL,          0x00 },
264         { STV090x_P2_DMDCFGMD,          0xF9 },
265         { STV090x_P2_DEMOD,             0x08 },
266         { STV090x_P2_DMDCFG3,           0xc4 },
267         { STV090x_P2_CARFREQ,           0xed },
268         { STV090x_P2_LDT,               0xd0 },
269         { STV090x_P2_LDT2,              0xb8 },
270         { STV090x_P2_TMGCFG,            0xd2 },
271         { STV090x_P2_TMGTHRISE,         0x20 },
272         { STV090x_P1_TMGCFG,            0xd2 },
273
274         { STV090x_P2_TMGTHFALL,         0x00 },
275         { STV090x_P2_FECSPY,            0x88 },
276         { STV090x_P2_FSPYDATA,          0x3a },
277         { STV090x_P2_FBERCPT4,          0x00 },
278         { STV090x_P2_FSPYBER,           0x10 },
279         { STV090x_P2_ERRCTRL1,          0x35 },
280         { STV090x_P2_ERRCTRL2,          0xc1 },
281         { STV090x_P2_CFRICFG,           0xf8 },
282         { STV090x_P2_NOSCFG,            0x1c },
283         { STV090x_P2_DMDTOM,            0x20 },
284         { STV090x_P2_CORRELMANT,        0x70 },
285         { STV090x_P2_CORRELABS,         0x88 },
286         { STV090x_P2_AGC2O,             0x5b },
287         { STV090x_P2_AGC2REF,           0x38 },
288         { STV090x_P2_CARCFG,            0xe4 },
289         { STV090x_P2_ACLC,              0x1A },
290         { STV090x_P2_BCLC,              0x09 },
291         { STV090x_P2_CARHDR,            0x08 },
292         { STV090x_P2_KREFTMG,           0xc1 },
293         { STV090x_P2_SFRUPRATIO,        0xf0 },
294         { STV090x_P2_SFRLOWRATIO,       0x70 },
295         { STV090x_P2_SFRSTEP,           0x58 },
296         { STV090x_P2_TMGCFG2,           0x01 },
297         { STV090x_P2_CAR2CFG,           0x26 },
298         { STV090x_P2_BCLC2S2Q,          0x86 },
299         { STV090x_P2_BCLC2S28,          0x86 },
300         { STV090x_P2_SMAPCOEF7,         0x77 },
301         { STV090x_P2_SMAPCOEF6,         0x85 },
302         { STV090x_P2_SMAPCOEF5,         0x77 },
303         { STV090x_P2_TSCFGL,            0x20 },
304         { STV090x_P2_DMDCFG2,           0x3b },
305         { STV090x_P2_MODCODLST0,        0xff },
306         { STV090x_P2_MODCODLST1,        0xff },
307         { STV090x_P2_MODCODLST2,        0xff },
308         { STV090x_P2_MODCODLST3,        0xff },
309         { STV090x_P2_MODCODLST4,        0xff },
310         { STV090x_P2_MODCODLST5,        0xff },
311         { STV090x_P2_MODCODLST6,        0xff },
312         { STV090x_P2_MODCODLST7,        0xcc },
313         { STV090x_P2_MODCODLST8,        0xcc },
314         { STV090x_P2_MODCODLST9,        0xcc },
315         { STV090x_P2_MODCODLSTA,        0xcc },
316         { STV090x_P2_MODCODLSTB,        0xcc },
317         { STV090x_P2_MODCODLSTC,        0xcc },
318         { STV090x_P2_MODCODLSTD,        0xcc },
319         { STV090x_P2_MODCODLSTE,        0xcc },
320         { STV090x_P2_MODCODLSTF,        0xcf },
321         { STV090x_P1_DISTXCTL,          0x22 },
322         { STV090x_P1_F22TX,             0xc0 },
323         { STV090x_P1_F22RX,             0xc0 },
324         { STV090x_P1_DISRXCTL,          0x00 },
325         { STV090x_P1_DMDCFGMD,          0xf9 },
326         { STV090x_P1_DEMOD,             0x08 },
327         { STV090x_P1_DMDCFG3,           0xc4 },
328         { STV090x_P1_DMDTOM,            0x20 },
329         { STV090x_P1_CARFREQ,           0xed },
330         { STV090x_P1_LDT,               0xd0 },
331         { STV090x_P1_LDT2,              0xb8 },
332         { STV090x_P1_TMGCFG,            0xd2 },
333         { STV090x_P1_TMGTHRISE,         0x20 },
334         { STV090x_P1_TMGTHFALL,         0x00 },
335         { STV090x_P1_SFRUPRATIO,        0xf0 },
336         { STV090x_P1_SFRLOWRATIO,       0x70 },
337         { STV090x_P1_TSCFGL,            0x20 },
338         { STV090x_P1_FECSPY,            0x88 },
339         { STV090x_P1_FSPYDATA,          0x3a },
340         { STV090x_P1_FBERCPT4,          0x00 },
341         { STV090x_P1_FSPYBER,           0x10 },
342         { STV090x_P1_ERRCTRL1,          0x35 },
343         { STV090x_P1_ERRCTRL2,          0xc1 },
344         { STV090x_P1_CFRICFG,           0xf8 },
345         { STV090x_P1_NOSCFG,            0x1c },
346         { STV090x_P1_CORRELMANT,        0x70 },
347         { STV090x_P1_CORRELABS,         0x88 },
348         { STV090x_P1_AGC2O,             0x5b },
349         { STV090x_P1_AGC2REF,           0x38 },
350         { STV090x_P1_CARCFG,            0xe4 },
351         { STV090x_P1_ACLC,              0x1A },
352         { STV090x_P1_BCLC,              0x09 },
353         { STV090x_P1_CARHDR,            0x08 },
354         { STV090x_P1_KREFTMG,           0xc1 },
355         { STV090x_P1_SFRSTEP,           0x58 },
356         { STV090x_P1_TMGCFG2,           0x01 },
357         { STV090x_P1_CAR2CFG,           0x26 },
358         { STV090x_P1_BCLC2S2Q,          0x86 },
359         { STV090x_P1_BCLC2S28,          0x86 },
360         { STV090x_P1_SMAPCOEF7,         0x77 },
361         { STV090x_P1_SMAPCOEF6,         0x85 },
362         { STV090x_P1_SMAPCOEF5,         0x77 },
363         { STV090x_P1_DMDCFG2,           0x3b },
364         { STV090x_P1_MODCODLST0,        0xff },
365         { STV090x_P1_MODCODLST1,        0xff },
366         { STV090x_P1_MODCODLST2,        0xff },
367         { STV090x_P1_MODCODLST3,        0xff },
368         { STV090x_P1_MODCODLST4,        0xff },
369         { STV090x_P1_MODCODLST5,        0xff },
370         { STV090x_P1_MODCODLST6,        0xff },
371         { STV090x_P1_MODCODLST7,        0xcc },
372         { STV090x_P1_MODCODLST8,        0xcc },
373         { STV090x_P1_MODCODLST9,        0xcc },
374         { STV090x_P1_MODCODLSTA,        0xcc },
375         { STV090x_P1_MODCODLSTB,        0xcc },
376         { STV090x_P1_MODCODLSTC,        0xcc },
377         { STV090x_P1_MODCODLSTD,        0xcc },
378         { STV090x_P1_MODCODLSTE,        0xcc },
379         { STV090x_P1_MODCODLSTF,        0xcf },
380         { STV090x_GENCFG,               0x1d },
381         { STV090x_NBITER_NF4,           0x37 },
382         { STV090x_NBITER_NF5,           0x29 },
383         { STV090x_NBITER_NF6,           0x37 },
384         { STV090x_NBITER_NF7,           0x33 },
385         { STV090x_NBITER_NF8,           0x31 },
386         { STV090x_NBITER_NF9,           0x2f },
387         { STV090x_NBITER_NF10,          0x39 },
388         { STV090x_NBITER_NF11,          0x3a },
389         { STV090x_NBITER_NF12,          0x29 },
390         { STV090x_NBITER_NF13,          0x37 },
391         { STV090x_NBITER_NF14,          0x33 },
392         { STV090x_NBITER_NF15,          0x2f },
393         { STV090x_NBITER_NF16,          0x39 },
394         { STV090x_NBITER_NF17,          0x3a },
395         { STV090x_NBITERNOERR,          0x04 },
396         { STV090x_GAINLLR_NF4,          0x0C },
397         { STV090x_GAINLLR_NF5,          0x0F },
398         { STV090x_GAINLLR_NF6,          0x11 },
399         { STV090x_GAINLLR_NF7,          0x14 },
400         { STV090x_GAINLLR_NF8,          0x17 },
401         { STV090x_GAINLLR_NF9,          0x19 },
402         { STV090x_GAINLLR_NF10,         0x20 },
403         { STV090x_GAINLLR_NF11,         0x21 },
404         { STV090x_GAINLLR_NF12,         0x0D },
405         { STV090x_GAINLLR_NF13,         0x0F },
406         { STV090x_GAINLLR_NF14,         0x13 },
407         { STV090x_GAINLLR_NF15,         0x1A },
408         { STV090x_GAINLLR_NF16,         0x1F },
409         { STV090x_GAINLLR_NF17,         0x21 },
410         { STV090x_RCCFGH,               0x20 },
411         { STV090x_P1_FECM,              0x01 }, /* disable DSS modes */
412         { STV090x_P2_FECM,              0x01 }, /* disable DSS modes */
413         { STV090x_P1_PRVIT,             0x2F }, /* disable PR 6/7 */
414         { STV090x_P2_PRVIT,             0x2F }, /* disable PR 6/7 */
415 };
416
417 static struct stv090x_reg stv0903_initval[] = {
418         { STV090x_OUTCFG,               0x00 },
419         { STV090x_AGCRF1CFG,            0x11 },
420         { STV090x_STOPCLK1,             0x48 },
421         { STV090x_STOPCLK2,             0x14 },
422         { STV090x_TSTTNR1,              0x27 },
423         { STV090x_TSTTNR2,              0x21 },
424         { STV090x_P1_DISTXCTL,          0x22 },
425         { STV090x_P1_F22TX,             0xc0 },
426         { STV090x_P1_F22RX,             0xc0 },
427         { STV090x_P1_DISRXCTL,          0x00 },
428         { STV090x_P1_DMDCFGMD,          0xF9 },
429         { STV090x_P1_DEMOD,             0x08 },
430         { STV090x_P1_DMDCFG3,           0xc4 },
431         { STV090x_P1_CARFREQ,           0xed },
432         { STV090x_P1_TNRCFG2,           0x82 },
433         { STV090x_P1_LDT,               0xd0 },
434         { STV090x_P1_LDT2,              0xb8 },
435         { STV090x_P1_TMGCFG,            0xd2 },
436         { STV090x_P1_TMGTHRISE,         0x20 },
437         { STV090x_P1_TMGTHFALL,         0x00 },
438         { STV090x_P1_SFRUPRATIO,        0xf0 },
439         { STV090x_P1_SFRLOWRATIO,       0x70 },
440         { STV090x_P1_TSCFGL,            0x20 },
441         { STV090x_P1_FECSPY,            0x88 },
442         { STV090x_P1_FSPYDATA,          0x3a },
443         { STV090x_P1_FBERCPT4,          0x00 },
444         { STV090x_P1_FSPYBER,           0x10 },
445         { STV090x_P1_ERRCTRL1,          0x35 },
446         { STV090x_P1_ERRCTRL2,          0xc1 },
447         { STV090x_P1_CFRICFG,           0xf8 },
448         { STV090x_P1_NOSCFG,            0x1c },
449         { STV090x_P1_DMDTOM,            0x20 },
450         { STV090x_P1_CORRELMANT,        0x70 },
451         { STV090x_P1_CORRELABS,         0x88 },
452         { STV090x_P1_AGC2O,             0x5b },
453         { STV090x_P1_AGC2REF,           0x38 },
454         { STV090x_P1_CARCFG,            0xe4 },
455         { STV090x_P1_ACLC,              0x1A },
456         { STV090x_P1_BCLC,              0x09 },
457         { STV090x_P1_CARHDR,            0x08 },
458         { STV090x_P1_KREFTMG,           0xc1 },
459         { STV090x_P1_SFRSTEP,           0x58 },
460         { STV090x_P1_TMGCFG2,           0x01 },
461         { STV090x_P1_CAR2CFG,           0x26 },
462         { STV090x_P1_BCLC2S2Q,          0x86 },
463         { STV090x_P1_BCLC2S28,          0x86 },
464         { STV090x_P1_SMAPCOEF7,         0x77 },
465         { STV090x_P1_SMAPCOEF6,         0x85 },
466         { STV090x_P1_SMAPCOEF5,         0x77 },
467         { STV090x_P1_DMDCFG2,           0x3b },
468         { STV090x_P1_MODCODLST0,        0xff },
469         { STV090x_P1_MODCODLST1,        0xff },
470         { STV090x_P1_MODCODLST2,        0xff },
471         { STV090x_P1_MODCODLST3,        0xff },
472         { STV090x_P1_MODCODLST4,        0xff },
473         { STV090x_P1_MODCODLST5,        0xff },
474         { STV090x_P1_MODCODLST6,        0xff },
475         { STV090x_P1_MODCODLST7,        0xcc },
476         { STV090x_P1_MODCODLST8,        0xcc },
477         { STV090x_P1_MODCODLST9,        0xcc },
478         { STV090x_P1_MODCODLSTA,        0xcc },
479         { STV090x_P1_MODCODLSTB,        0xcc },
480         { STV090x_P1_MODCODLSTC,        0xcc },
481         { STV090x_P1_MODCODLSTD,        0xcc },
482         { STV090x_P1_MODCODLSTE,        0xcc },
483         { STV090x_P1_MODCODLSTF,        0xcf },
484         { STV090x_GENCFG,               0x1c },
485         { STV090x_NBITER_NF4,           0x37 },
486         { STV090x_NBITER_NF5,           0x29 },
487         { STV090x_NBITER_NF6,           0x37 },
488         { STV090x_NBITER_NF7,           0x33 },
489         { STV090x_NBITER_NF8,           0x31 },
490         { STV090x_NBITER_NF9,           0x2f },
491         { STV090x_NBITER_NF10,          0x39 },
492         { STV090x_NBITER_NF11,          0x3a },
493         { STV090x_NBITER_NF12,          0x29 },
494         { STV090x_NBITER_NF13,          0x37 },
495         { STV090x_NBITER_NF14,          0x33 },
496         { STV090x_NBITER_NF15,          0x2f },
497         { STV090x_NBITER_NF16,          0x39 },
498         { STV090x_NBITER_NF17,          0x3a },
499         { STV090x_NBITERNOERR,          0x04 },
500         { STV090x_GAINLLR_NF4,          0x0C },
501         { STV090x_GAINLLR_NF5,          0x0F },
502         { STV090x_GAINLLR_NF6,          0x11 },
503         { STV090x_GAINLLR_NF7,          0x14 },
504         { STV090x_GAINLLR_NF8,          0x17 },
505         { STV090x_GAINLLR_NF9,          0x19 },
506         { STV090x_GAINLLR_NF10,         0x20 },
507         { STV090x_GAINLLR_NF11,         0x21 },
508         { STV090x_GAINLLR_NF12,         0x0D },
509         { STV090x_GAINLLR_NF13,         0x0F },
510         { STV090x_GAINLLR_NF14,         0x13 },
511         { STV090x_GAINLLR_NF15,         0x1A },
512         { STV090x_GAINLLR_NF16,         0x1F },
513         { STV090x_GAINLLR_NF17,         0x21 },
514         { STV090x_RCCFGH,               0x20 },
515         { STV090x_P1_FECM,              0x01 }, /*disable the DSS mode */
516         { STV090x_P1_PRVIT,             0x2f }  /*disable puncture rate 6/7*/
517 };
518
519 static struct stv090x_reg stv0900_cut20_val[] = {
520
521         { STV090x_P2_DMDCFG3,           0xe8 },
522         { STV090x_P2_DMDCFG4,           0x10 },
523         { STV090x_P2_CARFREQ,           0x38 },
524         { STV090x_P2_CARHDR,            0x20 },
525         { STV090x_P2_KREFTMG,           0x5a },
526         { STV090x_P2_SMAPCOEF7,         0x06 },
527         { STV090x_P2_SMAPCOEF6,         0x00 },
528         { STV090x_P2_SMAPCOEF5,         0x04 },
529         { STV090x_P2_NOSCFG,            0x0c },
530         { STV090x_P1_DMDCFG3,           0xe8 },
531         { STV090x_P1_DMDCFG4,           0x10 },
532         { STV090x_P1_CARFREQ,           0x38 },
533         { STV090x_P1_CARHDR,            0x20 },
534         { STV090x_P1_KREFTMG,           0x5a },
535         { STV090x_P1_SMAPCOEF7,         0x06 },
536         { STV090x_P1_SMAPCOEF6,         0x00 },
537         { STV090x_P1_SMAPCOEF5,         0x04 },
538         { STV090x_P1_NOSCFG,            0x0c },
539         { STV090x_GAINLLR_NF4,          0x21 },
540         { STV090x_GAINLLR_NF5,          0x21 },
541         { STV090x_GAINLLR_NF6,          0x20 },
542         { STV090x_GAINLLR_NF7,          0x1F },
543         { STV090x_GAINLLR_NF8,          0x1E },
544         { STV090x_GAINLLR_NF9,          0x1E },
545         { STV090x_GAINLLR_NF10,         0x1D },
546         { STV090x_GAINLLR_NF11,         0x1B },
547         { STV090x_GAINLLR_NF12,         0x20 },
548         { STV090x_GAINLLR_NF13,         0x20 },
549         { STV090x_GAINLLR_NF14,         0x20 },
550         { STV090x_GAINLLR_NF15,         0x20 },
551         { STV090x_GAINLLR_NF16,         0x20 },
552         { STV090x_GAINLLR_NF17,         0x21 },
553 };
554
555 static struct stv090x_reg stv0903_cut20_val[] = {
556         { STV090x_P1_DMDCFG3,           0xe8 },
557         { STV090x_P1_DMDCFG4,           0x10 },
558         { STV090x_P1_CARFREQ,           0x38 },
559         { STV090x_P1_CARHDR,            0x20 },
560         { STV090x_P1_KREFTMG,           0x5a },
561         { STV090x_P1_SMAPCOEF7,         0x06 },
562         { STV090x_P1_SMAPCOEF6,         0x00 },
563         { STV090x_P1_SMAPCOEF5,         0x04 },
564         { STV090x_P1_NOSCFG,            0x0c },
565         { STV090x_GAINLLR_NF4,          0x21 },
566         { STV090x_GAINLLR_NF5,          0x21 },
567         { STV090x_GAINLLR_NF6,          0x20 },
568         { STV090x_GAINLLR_NF7,          0x1F },
569         { STV090x_GAINLLR_NF8,          0x1E },
570         { STV090x_GAINLLR_NF9,          0x1E },
571         { STV090x_GAINLLR_NF10,         0x1D },
572         { STV090x_GAINLLR_NF11,         0x1B },
573         { STV090x_GAINLLR_NF12,         0x20 },
574         { STV090x_GAINLLR_NF13,         0x20 },
575         { STV090x_GAINLLR_NF14,         0x20 },
576         { STV090x_GAINLLR_NF15,         0x20 },
577         { STV090x_GAINLLR_NF16,         0x20 },
578         { STV090x_GAINLLR_NF17,         0x21 }
579 };
580
581 /* Cut 2.0 Long Frame Tracking CR loop */
582 static struct stv090x_long_frame_crloop stv090x_s2_crl_cut20[] = {
583         /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
584         { STV090x_QPSK_12,  0x1f, 0x3f, 0x1e, 0x3f, 0x3d, 0x1f, 0x3d, 0x3e, 0x3d, 0x1e },
585         { STV090x_QPSK_35,  0x2f, 0x3f, 0x2e, 0x2f, 0x3d, 0x0f, 0x0e, 0x2e, 0x3d, 0x0e },
586         { STV090x_QPSK_23,  0x2f, 0x3f, 0x2e, 0x2f, 0x0e, 0x0f, 0x0e, 0x1e, 0x3d, 0x3d },
587         { STV090x_QPSK_34,  0x3f, 0x3f, 0x3e, 0x1f, 0x0e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
588         { STV090x_QPSK_45,  0x3f, 0x3f, 0x3e, 0x1f, 0x0e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
589         { STV090x_QPSK_56,  0x3f, 0x3f, 0x3e, 0x1f, 0x0e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
590         { STV090x_QPSK_89,  0x3f, 0x3f, 0x3e, 0x1f, 0x1e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
591         { STV090x_QPSK_910, 0x3f, 0x3f, 0x3e, 0x1f, 0x1e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
592         { STV090x_8PSK_35,  0x3c, 0x3e, 0x1c, 0x2e, 0x0c, 0x1e, 0x2b, 0x2d, 0x1b, 0x1d },
593         { STV090x_8PSK_23,  0x1d, 0x3e, 0x3c, 0x2e, 0x2c, 0x1e, 0x0c, 0x2d, 0x2b, 0x1d },
594         { STV090x_8PSK_34,  0x0e, 0x3e, 0x3d, 0x2e, 0x0d, 0x1e, 0x2c, 0x2d, 0x0c, 0x1d },
595         { STV090x_8PSK_56,  0x2e, 0x3e, 0x1e, 0x2e, 0x2d, 0x1e, 0x3c, 0x2d, 0x2c, 0x1d },
596         { STV090x_8PSK_89,  0x3e, 0x3e, 0x1e, 0x2e, 0x3d, 0x1e, 0x0d, 0x2d, 0x3c, 0x1d },
597         { STV090x_8PSK_910, 0x3e, 0x3e, 0x1e, 0x2e, 0x3d, 0x1e, 0x1d, 0x2d, 0x0d, 0x1d }
598 };
599
600 /* Cut 3.0 Long Frame Tracking CR loop */
601 static  struct stv090x_long_frame_crloop stv090x_s2_crl_cut30[] = {
602         /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
603         { STV090x_QPSK_12,  0x3c, 0x2c, 0x0c, 0x2c, 0x1b, 0x2c, 0x1b, 0x1c, 0x0b, 0x3b },
604         { STV090x_QPSK_35,  0x0d, 0x0d, 0x0c, 0x0d, 0x1b, 0x3c, 0x1b, 0x1c, 0x0b, 0x3b },
605         { STV090x_QPSK_23,  0x1d, 0x0d, 0x0c, 0x1d, 0x2b, 0x3c, 0x1b, 0x1c, 0x0b, 0x3b },
606         { STV090x_QPSK_34,  0x1d, 0x1d, 0x0c, 0x1d, 0x2b, 0x3c, 0x1b, 0x1c, 0x0b, 0x3b },
607         { STV090x_QPSK_45,  0x2d, 0x1d, 0x1c, 0x1d, 0x2b, 0x3c, 0x2b, 0x0c, 0x1b, 0x3b },
608         { STV090x_QPSK_56,  0x2d, 0x1d, 0x1c, 0x1d, 0x2b, 0x3c, 0x2b, 0x0c, 0x1b, 0x3b },
609         { STV090x_QPSK_89,  0x3d, 0x2d, 0x1c, 0x1d, 0x3b, 0x3c, 0x2b, 0x0c, 0x1b, 0x3b },
610         { STV090x_QPSK_910, 0x3d, 0x2d, 0x1c, 0x1d, 0x3b, 0x3c, 0x2b, 0x0c, 0x1b, 0x3b },
611         { STV090x_8PSK_35,  0x39, 0x29, 0x39, 0x19, 0x19, 0x19, 0x19, 0x19, 0x09, 0x19 },
612         { STV090x_8PSK_23,  0x2a, 0x39, 0x1a, 0x0a, 0x39, 0x0a, 0x29, 0x39, 0x29, 0x0a },
613         { STV090x_8PSK_34,  0x2b, 0x3a, 0x1b, 0x1b, 0x3a, 0x1b, 0x1a, 0x0b, 0x1a, 0x3a },
614         { STV090x_8PSK_56,  0x0c, 0x1b, 0x3b, 0x3b, 0x1b, 0x3b, 0x3a, 0x3b, 0x3a, 0x1b },
615         { STV090x_8PSK_89,  0x0d, 0x3c, 0x2c, 0x2c, 0x2b, 0x0c, 0x0b, 0x3b, 0x0b, 0x1b },
616         { STV090x_8PSK_910, 0x0d, 0x0d, 0x2c, 0x3c, 0x3b, 0x1c, 0x0b, 0x3b, 0x0b, 0x1b }
617 };
618
619 /* Cut 2.0 Long Frame Tracking CR Loop */
620 static struct stv090x_long_frame_crloop stv090x_s2_apsk_crl_cut20[] = {
621         /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
622         { STV090x_16APSK_23,  0x0c, 0x0c, 0x0c, 0x0c, 0x1d, 0x0c, 0x3c, 0x0c, 0x2c, 0x0c },
623         { STV090x_16APSK_34,  0x0c, 0x0c, 0x0c, 0x0c, 0x0e, 0x0c, 0x2d, 0x0c, 0x1d, 0x0c },
624         { STV090x_16APSK_45,  0x0c, 0x0c, 0x0c, 0x0c, 0x1e, 0x0c, 0x3d, 0x0c, 0x2d, 0x0c },
625         { STV090x_16APSK_56,  0x0c, 0x0c, 0x0c, 0x0c, 0x1e, 0x0c, 0x3d, 0x0c, 0x2d, 0x0c },
626         { STV090x_16APSK_89,  0x0c, 0x0c, 0x0c, 0x0c, 0x2e, 0x0c, 0x0e, 0x0c, 0x3d, 0x0c },
627         { STV090x_16APSK_910, 0x0c, 0x0c, 0x0c, 0x0c, 0x2e, 0x0c, 0x0e, 0x0c, 0x3d, 0x0c },
628         { STV090x_32APSK_34,  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
629         { STV090x_32APSK_45,  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
630         { STV090x_32APSK_56,  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
631         { STV090x_32APSK_89,  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
632         { STV090x_32APSK_910, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c }
633 };
634
635 /* Cut 3.0 Long Frame Tracking CR Loop */
636 static struct stv090x_long_frame_crloop stv090x_s2_apsk_crl_cut30[] = {
637         /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
638         { STV090x_16APSK_23,  0x0a, 0x0a, 0x0a, 0x0a, 0x1a, 0x0a, 0x3a, 0x0a, 0x2a, 0x0a },
639         { STV090x_16APSK_34,  0x0a, 0x0a, 0x0a, 0x0a, 0x0b, 0x0a, 0x3b, 0x0a, 0x1b, 0x0a },
640         { STV090x_16APSK_45,  0x0a, 0x0a, 0x0a, 0x0a, 0x1b, 0x0a, 0x3b, 0x0a, 0x2b, 0x0a },
641         { STV090x_16APSK_56,  0x0a, 0x0a, 0x0a, 0x0a, 0x1b, 0x0a, 0x3b, 0x0a, 0x2b, 0x0a },
642         { STV090x_16APSK_89,  0x0a, 0x0a, 0x0a, 0x0a, 0x2b, 0x0a, 0x0c, 0x0a, 0x3b, 0x0a },
643         { STV090x_16APSK_910, 0x0a, 0x0a, 0x0a, 0x0a, 0x2b, 0x0a, 0x0c, 0x0a, 0x3b, 0x0a },
644         { STV090x_32APSK_34,  0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a },
645         { STV090x_32APSK_45,  0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a },
646         { STV090x_32APSK_56,  0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a },
647         { STV090x_32APSK_89,  0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a },
648         { STV090x_32APSK_910, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a }
649 };
650
651 static struct stv090x_long_frame_crloop stv090x_s2_lowqpsk_crl_cut20[] = {
652         /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
653         { STV090x_QPSK_14,  0x0f, 0x3f, 0x0e, 0x3f, 0x2d, 0x2f, 0x2d, 0x1f, 0x3d, 0x3e },
654         { STV090x_QPSK_13,  0x0f, 0x3f, 0x0e, 0x3f, 0x2d, 0x2f, 0x3d, 0x0f, 0x3d, 0x2e },
655         { STV090x_QPSK_25,  0x1f, 0x3f, 0x1e, 0x3f, 0x3d, 0x1f, 0x3d, 0x3e, 0x3d, 0x2e }
656 };
657
658 static struct stv090x_long_frame_crloop stv090x_s2_lowqpsk_crl_cut30[] = {
659         /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
660         { STV090x_QPSK_14,  0x0c, 0x3c, 0x0b, 0x3c, 0x2a, 0x2c, 0x2a, 0x1c, 0x3a, 0x3b },
661         { STV090x_QPSK_13,  0x0c, 0x3c, 0x0b, 0x3c, 0x2a, 0x2c, 0x3a, 0x0c, 0x3a, 0x2b },
662         { STV090x_QPSK_25,  0x1c, 0x3c, 0x1b, 0x3c, 0x3a, 0x1c, 0x3a, 0x3b, 0x3a, 0x2b }
663 };
664
665 /* Cut 2.0 Short Frame Tracking CR Loop */
666 static struct stv090x_short_frame_crloop stv090x_s2_short_crl_cut20[] = {
667         /* MODCOD         2M    5M    10M   20M   30M */
668         { STV090x_QPSK,   0x2f, 0x2e, 0x0e, 0x0e, 0x3d },
669         { STV090x_8PSK,   0x3e, 0x0e, 0x2d, 0x0d, 0x3c },
670         { STV090x_16APSK, 0x1e, 0x1e, 0x1e, 0x3d, 0x2d },
671         { STV090x_32APSK, 0x1e, 0x1e, 0x1e, 0x3d, 0x2d }
672 };
673
674 /* Cut 3.0 Short Frame Tracking CR Loop */
675 static struct stv090x_short_frame_crloop stv090x_s2_short_crl_cut30[] = {
676         /* MODCOD         2M    5M    10M   20M   30M */
677         { STV090x_QPSK,   0x2C, 0x2B, 0x0B, 0x0B, 0x3A },
678         { STV090x_8PSK,   0x3B, 0x0B, 0x2A, 0x0A, 0x39 },
679         { STV090x_16APSK, 0x1B, 0x1B, 0x1B, 0x3A, 0x2A },
680         { STV090x_32APSK, 0x1B, 0x1B, 0x1B, 0x3A, 0x2A }
681 };
682
683 static inline s32 comp2(s32 __x, s32 __width)
684 {
685         if (__width == 32)
686                 return __x;
687         else
688                 return (__x >= (1 << (__width - 1))) ? (__x - (1 << __width)) : __x;
689 }
690
691 static int stv090x_read_reg(struct stv090x_state *state, unsigned int reg)
692 {
693         const struct stv090x_config *config = state->config;
694         int ret;
695
696         u8 b0[] = { reg >> 8, reg & 0xff };
697         u8 buf;
698
699         struct i2c_msg msg[] = {
700                 { .addr = config->address, .flags       = 0,            .buf = b0,   .len = 2 },
701                 { .addr = config->address, .flags       = I2C_M_RD,     .buf = &buf, .len = 1 }
702         };
703
704         ret = i2c_transfer(state->i2c, msg, 2);
705         if (ret != 2) {
706                 if (ret != -ERESTARTSYS)
707                         dprintk(FE_ERROR, 1,
708                                 "Read error, Reg=[0x%02x], Status=%d",
709                                 reg, ret);
710
711                 return ret < 0 ? ret : -EREMOTEIO;
712         }
713         if (unlikely(*state->verbose >= FE_DEBUGREG))
714                 dprintk(FE_ERROR, 1, "Reg=[0x%02x], data=%02x",
715                         reg, buf);
716
717         return (unsigned int) buf;
718 }
719
720 static int stv090x_write_regs(struct stv090x_state *state, unsigned int reg, u8 *data, u32 count)
721 {
722         const struct stv090x_config *config = state->config;
723         int ret;
724         u8 buf[2 + count];
725         struct i2c_msg i2c_msg = { .addr = config->address, .flags = 0, .buf = buf, .len = 2 + count };
726
727         buf[0] = reg >> 8;
728         buf[1] = reg & 0xff;
729         memcpy(&buf[2], data, count);
730
731         if (unlikely(*state->verbose >= FE_DEBUGREG)) {
732                 int i;
733
734                 printk(KERN_DEBUG "%s [0x%04x]:", __func__, reg);
735                 for (i = 0; i < count; i++)
736                         printk(" %02x", data[i]);
737                 printk("\n");
738         }
739
740         ret = i2c_transfer(state->i2c, &i2c_msg, 1);
741         if (ret != 1) {
742                 if (ret != -ERESTARTSYS)
743                         dprintk(FE_ERROR, 1, "Reg=[0x%04x], Data=[0x%02x ...], Count=%u, Status=%d",
744                                 reg, data[0], count, ret);
745                 return ret < 0 ? ret : -EREMOTEIO;
746         }
747
748         return 0;
749 }
750
751 static int stv090x_write_reg(struct stv090x_state *state, unsigned int reg, u8 data)
752 {
753         return stv090x_write_regs(state, reg, &data, 1);
754 }
755
756 static int stv090x_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
757 {
758         struct stv090x_state *state = fe->demodulator_priv;
759         u32 reg;
760
761         if (enable)
762                 mutex_lock(&state->internal->tuner_lock);
763
764         reg = STV090x_READ_DEMOD(state, I2CRPT);
765         if (enable) {
766                 dprintk(FE_DEBUG, 1, "Enable Gate");
767                 STV090x_SETFIELD_Px(reg, I2CT_ON_FIELD, 1);
768                 if (STV090x_WRITE_DEMOD(state, I2CRPT, reg) < 0)
769                         goto err;
770
771         } else {
772                 dprintk(FE_DEBUG, 1, "Disable Gate");
773                 STV090x_SETFIELD_Px(reg, I2CT_ON_FIELD, 0);
774                 if ((STV090x_WRITE_DEMOD(state, I2CRPT, reg)) < 0)
775                         goto err;
776         }
777
778         if (!enable)
779                 mutex_unlock(&state->internal->tuner_lock);
780
781         return 0;
782 err:
783         dprintk(FE_ERROR, 1, "I/O error");
784         mutex_unlock(&state->internal->tuner_lock);
785         return -1;
786 }
787
788 static void stv090x_get_lock_tmg(struct stv090x_state *state)
789 {
790         switch (state->algo) {
791         case STV090x_BLIND_SEARCH:
792                 dprintk(FE_DEBUG, 1, "Blind Search");
793                 if (state->srate <= 1500000) {  /*10Msps< SR <=15Msps*/
794                         state->DemodTimeout = 1500;
795                         state->FecTimeout = 400;
796                 } else if (state->srate <= 5000000) {  /*10Msps< SR <=15Msps*/
797                         state->DemodTimeout = 1000;
798                         state->FecTimeout = 300;
799                 } else {  /*SR >20Msps*/
800                         state->DemodTimeout = 700;
801                         state->FecTimeout = 100;
802                 }
803                 break;
804
805         case STV090x_COLD_SEARCH:
806         case STV090x_WARM_SEARCH:
807         default:
808                 dprintk(FE_DEBUG, 1, "Normal Search");
809                 if (state->srate <= 1000000) {  /*SR <=1Msps*/
810                         state->DemodTimeout = 4500;
811                         state->FecTimeout = 1700;
812                 } else if (state->srate <= 2000000) { /*1Msps < SR <= 2Msps */
813                         state->DemodTimeout = 2500;
814                         state->FecTimeout = 1100;
815                 } else if (state->srate <= 5000000) { /*2Msps < SR <= 5Msps */
816                         state->DemodTimeout = 1000;
817                         state->FecTimeout = 550;
818                 } else if (state->srate <= 10000000) { /*5Msps < SR <= 10Msps */
819                         state->DemodTimeout = 700;
820                         state->FecTimeout = 250;
821                 } else if (state->srate <= 20000000) { /*10Msps < SR <= 20Msps */
822                         state->DemodTimeout = 400;
823                         state->FecTimeout = 130;
824                 } else {   /*SR >20Msps*/
825                         state->DemodTimeout = 300;
826                         state->FecTimeout = 100;
827                 }
828                 break;
829         }
830
831         if (state->algo == STV090x_WARM_SEARCH)
832                 state->DemodTimeout /= 2;
833 }
834
835 static int stv090x_set_srate(struct stv090x_state *state, u32 srate)
836 {
837         u32 sym;
838
839         if (srate > 60000000) {
840                 sym  = (srate << 4); /* SR * 2^16 / master_clk */
841                 sym /= (state->internal->mclk >> 12);
842         } else if (srate > 6000000) {
843                 sym  = (srate << 6);
844                 sym /= (state->internal->mclk >> 10);
845         } else {
846                 sym  = (srate << 9);
847                 sym /= (state->internal->mclk >> 7);
848         }
849
850         if (STV090x_WRITE_DEMOD(state, SFRINIT1, (sym >> 8) & 0x7f) < 0) /* MSB */
851                 goto err;
852         if (STV090x_WRITE_DEMOD(state, SFRINIT0, (sym & 0xff)) < 0) /* LSB */
853                 goto err;
854
855         return 0;
856 err:
857         dprintk(FE_ERROR, 1, "I/O error");
858         return -1;
859 }
860
861 static int stv090x_set_max_srate(struct stv090x_state *state, u32 clk, u32 srate)
862 {
863         u32 sym;
864
865         srate = 105 * (srate / 100);
866         if (srate > 60000000) {
867                 sym  = (srate << 4); /* SR * 2^16 / master_clk */
868                 sym /= (state->internal->mclk >> 12);
869         } else if (srate > 6000000) {
870                 sym  = (srate << 6);
871                 sym /= (state->internal->mclk >> 10);
872         } else {
873                 sym  = (srate << 9);
874                 sym /= (state->internal->mclk >> 7);
875         }
876
877         if (sym < 0x7fff) {
878                 if (STV090x_WRITE_DEMOD(state, SFRUP1, (sym >> 8) & 0x7f) < 0) /* MSB */
879                         goto err;
880                 if (STV090x_WRITE_DEMOD(state, SFRUP0, sym & 0xff) < 0) /* LSB */
881                         goto err;
882         } else {
883                 if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x7f) < 0) /* MSB */
884                         goto err;
885                 if (STV090x_WRITE_DEMOD(state, SFRUP0, 0xff) < 0) /* LSB */
886                         goto err;
887         }
888
889         return 0;
890 err:
891         dprintk(FE_ERROR, 1, "I/O error");
892         return -1;
893 }
894
895 static int stv090x_set_min_srate(struct stv090x_state *state, u32 clk, u32 srate)
896 {
897         u32 sym;
898
899         srate = 95 * (srate / 100);
900         if (srate > 60000000) {
901                 sym  = (srate << 4); /* SR * 2^16 / master_clk */
902                 sym /= (state->internal->mclk >> 12);
903         } else if (srate > 6000000) {
904                 sym  = (srate << 6);
905                 sym /= (state->internal->mclk >> 10);
906         } else {
907                 sym  = (srate << 9);
908                 sym /= (state->internal->mclk >> 7);
909         }
910
911         if (STV090x_WRITE_DEMOD(state, SFRLOW1, ((sym >> 8) & 0x7f)) < 0) /* MSB */
912                 goto err;
913         if (STV090x_WRITE_DEMOD(state, SFRLOW0, (sym & 0xff)) < 0) /* LSB */
914                 goto err;
915         return 0;
916 err:
917         dprintk(FE_ERROR, 1, "I/O error");
918         return -1;
919 }
920
921 static u32 stv090x_car_width(u32 srate, enum stv090x_rolloff rolloff)
922 {
923         u32 ro;
924
925         switch (rolloff) {
926         case STV090x_RO_20:
927                 ro = 20;
928                 break;
929         case STV090x_RO_25:
930                 ro = 25;
931                 break;
932         case STV090x_RO_35:
933         default:
934                 ro = 35;
935                 break;
936         }
937
938         return srate + (srate * ro) / 100;
939 }
940
941 static int stv090x_set_vit_thacq(struct stv090x_state *state)
942 {
943         if (STV090x_WRITE_DEMOD(state, VTH12, 0x96) < 0)
944                 goto err;
945         if (STV090x_WRITE_DEMOD(state, VTH23, 0x64) < 0)
946                 goto err;
947         if (STV090x_WRITE_DEMOD(state, VTH34, 0x36) < 0)
948                 goto err;
949         if (STV090x_WRITE_DEMOD(state, VTH56, 0x23) < 0)
950                 goto err;
951         if (STV090x_WRITE_DEMOD(state, VTH67, 0x1e) < 0)
952                 goto err;
953         if (STV090x_WRITE_DEMOD(state, VTH78, 0x19) < 0)
954                 goto err;
955         return 0;
956 err:
957         dprintk(FE_ERROR, 1, "I/O error");
958         return -1;
959 }
960
961 static int stv090x_set_vit_thtracq(struct stv090x_state *state)
962 {
963         if (STV090x_WRITE_DEMOD(state, VTH12, 0xd0) < 0)
964                 goto err;
965         if (STV090x_WRITE_DEMOD(state, VTH23, 0x7d) < 0)
966                 goto err;
967         if (STV090x_WRITE_DEMOD(state, VTH34, 0x53) < 0)
968                 goto err;
969         if (STV090x_WRITE_DEMOD(state, VTH56, 0x2f) < 0)
970                 goto err;
971         if (STV090x_WRITE_DEMOD(state, VTH67, 0x24) < 0)
972                 goto err;
973         if (STV090x_WRITE_DEMOD(state, VTH78, 0x1f) < 0)
974                 goto err;
975         return 0;
976 err:
977         dprintk(FE_ERROR, 1, "I/O error");
978         return -1;
979 }
980
981 static int stv090x_set_viterbi(struct stv090x_state *state)
982 {
983         switch (state->search_mode) {
984         case STV090x_SEARCH_AUTO:
985                 if (STV090x_WRITE_DEMOD(state, FECM, 0x10) < 0) /* DVB-S and DVB-S2 */
986                         goto err;
987                 if (STV090x_WRITE_DEMOD(state, PRVIT, 0x3f) < 0) /* all puncture rate */
988                         goto err;
989                 break;
990         case STV090x_SEARCH_DVBS1:
991                 if (STV090x_WRITE_DEMOD(state, FECM, 0x00) < 0) /* disable DSS */
992                         goto err;
993                 switch (state->fec) {
994                 case STV090x_PR12:
995                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x01) < 0)
996                                 goto err;
997                         break;
998
999                 case STV090x_PR23:
1000                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x02) < 0)
1001                                 goto err;
1002                         break;
1003
1004                 case STV090x_PR34:
1005                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x04) < 0)
1006                                 goto err;
1007                         break;
1008
1009                 case STV090x_PR56:
1010                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x08) < 0)
1011                                 goto err;
1012                         break;
1013
1014                 case STV090x_PR78:
1015                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x20) < 0)
1016                                 goto err;
1017                         break;
1018
1019                 default:
1020                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x2f) < 0) /* all */
1021                                 goto err;
1022                         break;
1023                 }
1024                 break;
1025         case STV090x_SEARCH_DSS:
1026                 if (STV090x_WRITE_DEMOD(state, FECM, 0x80) < 0)
1027                         goto err;
1028                 switch (state->fec) {
1029                 case STV090x_PR12:
1030                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x01) < 0)
1031                                 goto err;
1032                         break;
1033
1034                 case STV090x_PR23:
1035                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x02) < 0)
1036                                 goto err;
1037                         break;
1038
1039                 case STV090x_PR67:
1040                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x10) < 0)
1041                                 goto err;
1042                         break;
1043
1044                 default:
1045                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x13) < 0) /* 1/2, 2/3, 6/7 */
1046                                 goto err;
1047                         break;
1048                 }
1049                 break;
1050         default:
1051                 break;
1052         }
1053         return 0;
1054 err:
1055         dprintk(FE_ERROR, 1, "I/O error");
1056         return -1;
1057 }
1058
1059 static int stv090x_stop_modcod(struct stv090x_state *state)
1060 {
1061         if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
1062                 goto err;
1063         if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xff) < 0)
1064                 goto err;
1065         if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0xff) < 0)
1066                 goto err;
1067         if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0xff) < 0)
1068                 goto err;
1069         if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0xff) < 0)
1070                 goto err;
1071         if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0xff) < 0)
1072                 goto err;
1073         if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0xff) < 0)
1074                 goto err;
1075         if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0xff) < 0)
1076                 goto err;
1077         if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0xff) < 0)
1078                 goto err;
1079         if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0xff) < 0)
1080                 goto err;
1081         if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0xff) < 0)
1082                 goto err;
1083         if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0xff) < 0)
1084                 goto err;
1085         if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0xff) < 0)
1086                 goto err;
1087         if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0xff) < 0)
1088                 goto err;
1089         if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0xff) < 0)
1090                 goto err;
1091         if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0xff) < 0)
1092                 goto err;
1093         return 0;
1094 err:
1095         dprintk(FE_ERROR, 1, "I/O error");
1096         return -1;
1097 }
1098
1099 static int stv090x_activate_modcod(struct stv090x_state *state)
1100 {
1101         if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
1102                 goto err;
1103         if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xfc) < 0)
1104                 goto err;
1105         if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0xcc) < 0)
1106                 goto err;
1107         if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0xcc) < 0)
1108                 goto err;
1109         if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0xcc) < 0)
1110                 goto err;
1111         if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0xcc) < 0)
1112                 goto err;
1113         if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0xcc) < 0)
1114                 goto err;
1115         if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0xcc) < 0)
1116                 goto err;
1117         if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0xcc) < 0)
1118                 goto err;
1119         if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0xcc) < 0)
1120                 goto err;
1121         if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0xcc) < 0)
1122                 goto err;
1123         if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0xcc) < 0)
1124                 goto err;
1125         if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0xcc) < 0)
1126                 goto err;
1127         if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0xcc) < 0)
1128                 goto err;
1129         if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0xcc) < 0)
1130                 goto err;
1131         if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0xcf) < 0)
1132                 goto err;
1133
1134         return 0;
1135 err:
1136         dprintk(FE_ERROR, 1, "I/O error");
1137         return -1;
1138 }
1139
1140 static int stv090x_activate_modcod_single(struct stv090x_state *state)
1141 {
1142
1143         if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
1144                 goto err;
1145         if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xf0) < 0)
1146                 goto err;
1147         if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0x00) < 0)
1148                 goto err;
1149         if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0x00) < 0)
1150                 goto err;
1151         if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0x00) < 0)
1152                 goto err;
1153         if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0x00) < 0)
1154                 goto err;
1155         if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0x00) < 0)
1156                 goto err;
1157         if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0x00) < 0)
1158                 goto err;
1159         if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0x00) < 0)
1160                 goto err;
1161         if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0x00) < 0)
1162                 goto err;
1163         if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0x00) < 0)
1164                 goto err;
1165         if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0x00) < 0)
1166                 goto err;
1167         if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0x00) < 0)
1168                 goto err;
1169         if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0x00) < 0)
1170                 goto err;
1171         if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0x00) < 0)
1172                 goto err;
1173         if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0x0f) < 0)
1174                 goto err;
1175
1176         return 0;
1177
1178 err:
1179         dprintk(FE_ERROR, 1, "I/O error");
1180         return -1;
1181 }
1182
1183 static int stv090x_vitclk_ctl(struct stv090x_state *state, int enable)
1184 {
1185         u32 reg;
1186
1187         switch (state->demod) {
1188         case STV090x_DEMODULATOR_0:
1189                 mutex_lock(&state->internal->demod_lock);
1190                 reg = stv090x_read_reg(state, STV090x_STOPCLK2);
1191                 STV090x_SETFIELD(reg, STOP_CLKVIT1_FIELD, enable);
1192                 if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
1193                         goto err;
1194                 mutex_unlock(&state->internal->demod_lock);
1195                 break;
1196
1197         case STV090x_DEMODULATOR_1:
1198                 mutex_lock(&state->internal->demod_lock);
1199                 reg = stv090x_read_reg(state, STV090x_STOPCLK2);
1200                 STV090x_SETFIELD(reg, STOP_CLKVIT2_FIELD, enable);
1201                 if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
1202                         goto err;
1203                 mutex_unlock(&state->internal->demod_lock);
1204                 break;
1205
1206         default:
1207                 dprintk(FE_ERROR, 1, "Wrong demodulator!");
1208                 break;
1209         }
1210         return 0;
1211 err:
1212         mutex_unlock(&state->internal->demod_lock);
1213         dprintk(FE_ERROR, 1, "I/O error");
1214         return -1;
1215 }
1216
1217 static int stv090x_dvbs_track_crl(struct stv090x_state *state)
1218 {
1219         if (state->internal->dev_ver >= 0x30) {
1220                 /* Set ACLC BCLC optimised value vs SR */
1221                 if (state->srate >= 15000000) {
1222                         if (STV090x_WRITE_DEMOD(state, ACLC, 0x2b) < 0)
1223                                 goto err;
1224                         if (STV090x_WRITE_DEMOD(state, BCLC, 0x1a) < 0)
1225                                 goto err;
1226                 } else if ((state->srate >= 7000000) && (15000000 > state->srate)) {
1227                         if (STV090x_WRITE_DEMOD(state, ACLC, 0x0c) < 0)
1228                                 goto err;
1229                         if (STV090x_WRITE_DEMOD(state, BCLC, 0x1b) < 0)
1230                                 goto err;
1231                 } else if (state->srate < 7000000) {
1232                         if (STV090x_WRITE_DEMOD(state, ACLC, 0x2c) < 0)
1233                                 goto err;
1234                         if (STV090x_WRITE_DEMOD(state, BCLC, 0x1c) < 0)
1235                                 goto err;
1236                 }
1237
1238         } else {
1239                 /* Cut 2.0 */
1240                 if (STV090x_WRITE_DEMOD(state, ACLC, 0x1a) < 0)
1241                         goto err;
1242                 if (STV090x_WRITE_DEMOD(state, BCLC, 0x09) < 0)
1243                         goto err;
1244         }
1245         return 0;
1246 err:
1247         dprintk(FE_ERROR, 1, "I/O error");
1248         return -1;
1249 }
1250
1251 static int stv090x_delivery_search(struct stv090x_state *state)
1252 {
1253         u32 reg;
1254
1255         switch (state->search_mode) {
1256         case STV090x_SEARCH_DVBS1:
1257         case STV090x_SEARCH_DSS:
1258                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1259                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
1260                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
1261                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1262                         goto err;
1263
1264                 /* Activate Viterbi decoder in legacy search,
1265                  * do not use FRESVIT1, might impact VITERBI2
1266                  */
1267                 if (stv090x_vitclk_ctl(state, 0) < 0)
1268                         goto err;
1269
1270                 if (stv090x_dvbs_track_crl(state) < 0)
1271                         goto err;
1272
1273                 if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x22) < 0) /* disable DVB-S2 */
1274                         goto err;
1275
1276                 if (stv090x_set_vit_thacq(state) < 0)
1277                         goto err;
1278                 if (stv090x_set_viterbi(state) < 0)
1279                         goto err;
1280                 break;
1281
1282         case STV090x_SEARCH_DVBS2:
1283                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1284                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 0);
1285                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
1286                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1287                         goto err;
1288                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
1289                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
1290                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1291                         goto err;
1292
1293                 if (stv090x_vitclk_ctl(state, 1) < 0)
1294                         goto err;
1295
1296                 if (STV090x_WRITE_DEMOD(state, ACLC, 0x1a) < 0) /* stop DVB-S CR loop */
1297                         goto err;
1298                 if (STV090x_WRITE_DEMOD(state, BCLC, 0x09) < 0)
1299                         goto err;
1300
1301                 if (state->internal->dev_ver <= 0x20) {
1302                         /* enable S2 carrier loop */
1303                         if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x26) < 0)
1304                                 goto err;
1305                 } else {
1306                         /* > Cut 3: Stop carrier 3 */
1307                         if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x66) < 0)
1308                                 goto err;
1309                 }
1310
1311                 if (state->demod_mode != STV090x_SINGLE) {
1312                         /* Cut 2: enable link during search */
1313                         if (stv090x_activate_modcod(state) < 0)
1314                                 goto err;
1315                 } else {
1316                         /* Single demodulator
1317                          * Authorize SHORT and LONG frames,
1318                          * QPSK, 8PSK, 16APSK and 32APSK
1319                          */
1320                         if (stv090x_activate_modcod_single(state) < 0)
1321                                 goto err;
1322                 }
1323
1324                 if (stv090x_set_vit_thtracq(state) < 0)
1325                         goto err;
1326                 break;
1327
1328         case STV090x_SEARCH_AUTO:
1329         default:
1330                 /* enable DVB-S2 and DVB-S2 in Auto MODE */
1331                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1332                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 0);
1333                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
1334                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1335                         goto err;
1336                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
1337                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
1338                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1339                         goto err;
1340
1341                 if (stv090x_vitclk_ctl(state, 0) < 0)
1342                         goto err;
1343
1344                 if (stv090x_dvbs_track_crl(state) < 0)
1345                         goto err;
1346
1347                 if (state->internal->dev_ver <= 0x20) {
1348                         /* enable S2 carrier loop */
1349                         if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x26) < 0)
1350                                 goto err;
1351                 } else {
1352                         /* > Cut 3: Stop carrier 3 */
1353                         if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x66) < 0)
1354                                 goto err;
1355                 }
1356
1357                 if (state->demod_mode != STV090x_SINGLE) {
1358                         /* Cut 2: enable link during search */
1359                         if (stv090x_activate_modcod(state) < 0)
1360                                 goto err;
1361                 } else {
1362                         /* Single demodulator
1363                          * Authorize SHORT and LONG frames,
1364                          * QPSK, 8PSK, 16APSK and 32APSK
1365                          */
1366                         if (stv090x_activate_modcod_single(state) < 0)
1367                                 goto err;
1368                 }
1369
1370                 if (stv090x_set_vit_thacq(state) < 0)
1371                         goto err;
1372
1373                 if (stv090x_set_viterbi(state) < 0)
1374                         goto err;
1375                 break;
1376         }
1377         return 0;
1378 err:
1379         dprintk(FE_ERROR, 1, "I/O error");
1380         return -1;
1381 }
1382
1383 static int stv090x_start_search(struct stv090x_state *state)
1384 {
1385         u32 reg, freq_abs;
1386         s16 freq;
1387
1388         /* Reset demodulator */
1389         reg = STV090x_READ_DEMOD(state, DMDISTATE);
1390         STV090x_SETFIELD_Px(reg, I2C_DEMOD_MODE_FIELD, 0x1f);
1391         if (STV090x_WRITE_DEMOD(state, DMDISTATE, reg) < 0)
1392                 goto err;
1393
1394         if (state->internal->dev_ver <= 0x20) {
1395                 if (state->srate <= 5000000) {
1396                         if (STV090x_WRITE_DEMOD(state, CARCFG, 0x44) < 0)
1397                                 goto err;
1398                         if (STV090x_WRITE_DEMOD(state, CFRUP1, 0x0f) < 0)
1399                                 goto err;
1400                         if (STV090x_WRITE_DEMOD(state, CFRUP0, 0xff) < 0)
1401                                 goto err;
1402                         if (STV090x_WRITE_DEMOD(state, CFRLOW1, 0xf0) < 0)
1403                                 goto err;
1404                         if (STV090x_WRITE_DEMOD(state, CFRLOW0, 0x00) < 0)
1405                                 goto err;
1406
1407                         /*enlarge the timing bandwith for Low SR*/
1408                         if (STV090x_WRITE_DEMOD(state, RTCS2, 0x68) < 0)
1409                                 goto err;
1410                 } else {
1411                         /* If the symbol rate is >5 Msps
1412                         Set The carrier search up and low to auto mode */
1413                         if (STV090x_WRITE_DEMOD(state, CARCFG, 0xc4) < 0)
1414                                 goto err;
1415                         /*reduce the timing bandwith for high SR*/
1416                         if (STV090x_WRITE_DEMOD(state, RTCS2, 0x44) < 0)
1417                                 goto err;
1418                 }
1419         } else {
1420                 /* >= Cut 3 */
1421                 if (state->srate <= 5000000) {
1422                         /* enlarge the timing bandwith for Low SR */
1423                         STV090x_WRITE_DEMOD(state, RTCS2, 0x68);
1424                 } else {
1425                         /* reduce timing bandwith for high SR */
1426                         STV090x_WRITE_DEMOD(state, RTCS2, 0x44);
1427                 }
1428
1429                 /* Set CFR min and max to manual mode */
1430                 STV090x_WRITE_DEMOD(state, CARCFG, 0x46);
1431
1432                 if (state->algo == STV090x_WARM_SEARCH) {
1433                         /* WARM Start
1434                          * CFR min = -1MHz,
1435                          * CFR max = +1MHz
1436                          */
1437                         freq_abs  = 1000 << 16;
1438                         freq_abs /= (state->internal->mclk / 1000);
1439                         freq      = (s16) freq_abs;
1440                 } else {
1441                         /* COLD Start
1442                          * CFR min =- (SearchRange / 2 + 600KHz)
1443                          * CFR max = +(SearchRange / 2 + 600KHz)
1444                          * (600KHz for the tuner step size)
1445                          */
1446                         freq_abs  = (state->search_range / 2000) + 600;
1447                         freq_abs  = freq_abs << 16;
1448                         freq_abs /= (state->internal->mclk / 1000);
1449                         freq      = (s16) freq_abs;
1450                 }
1451
1452                 if (STV090x_WRITE_DEMOD(state, CFRUP1, MSB(freq)) < 0)
1453                         goto err;
1454                 if (STV090x_WRITE_DEMOD(state, CFRUP0, LSB(freq)) < 0)
1455                         goto err;
1456
1457                 freq *= -1;
1458
1459                 if (STV090x_WRITE_DEMOD(state, CFRLOW1, MSB(freq)) < 0)
1460                         goto err;
1461                 if (STV090x_WRITE_DEMOD(state, CFRLOW0, LSB(freq)) < 0)
1462                         goto err;
1463
1464         }
1465
1466         if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0) < 0)
1467                 goto err;
1468         if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0) < 0)
1469                 goto err;
1470
1471         if (state->internal->dev_ver >= 0x20) {
1472                 if (STV090x_WRITE_DEMOD(state, EQUALCFG, 0x41) < 0)
1473                         goto err;
1474                 if (STV090x_WRITE_DEMOD(state, FFECFG, 0x41) < 0)
1475                         goto err;
1476
1477                 if ((state->search_mode == STV090x_DVBS1)       ||
1478                         (state->search_mode == STV090x_DSS)     ||
1479                         (state->search_mode == STV090x_SEARCH_AUTO)) {
1480
1481                         if (STV090x_WRITE_DEMOD(state, VITSCALE, 0x82) < 0)
1482                                 goto err;
1483                         if (STV090x_WRITE_DEMOD(state, VAVSRVIT, 0x00) < 0)
1484                                 goto err;
1485                 }
1486         }
1487
1488         if (STV090x_WRITE_DEMOD(state, SFRSTEP, 0x00) < 0)
1489                 goto err;
1490         if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0xe0) < 0)
1491                 goto err;
1492         if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0xc0) < 0)
1493                 goto err;
1494
1495         reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1496         STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 0);
1497         STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0);
1498         if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1499                 goto err;
1500         reg = STV090x_READ_DEMOD(state, DMDCFG2);
1501         STV090x_SETFIELD_Px(reg, S1S2_SEQUENTIAL_FIELD, 0x0);
1502         if (STV090x_WRITE_DEMOD(state, DMDCFG2, reg) < 0)
1503                 goto err;
1504
1505         if (STV090x_WRITE_DEMOD(state, RTC, 0x88) < 0)
1506                 goto err;
1507
1508         if (state->internal->dev_ver >= 0x20) {
1509                 /*Frequency offset detector setting*/
1510                 if (state->srate < 2000000) {
1511                         if (state->internal->dev_ver <= 0x20) {
1512                                 /* Cut 2 */
1513                                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x39) < 0)
1514                                         goto err;
1515                         } else {
1516                                 /* Cut 3 */
1517                                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x89) < 0)
1518                                         goto err;
1519                         }
1520                         if (STV090x_WRITE_DEMOD(state, CARHDR, 0x40) < 0)
1521                                 goto err;
1522                 } else if (state->srate < 10000000) {
1523                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x4c) < 0)
1524                                 goto err;
1525                         if (STV090x_WRITE_DEMOD(state, CARHDR, 0x20) < 0)
1526                                 goto err;
1527                 } else {
1528                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x4b) < 0)
1529                                 goto err;
1530                         if (STV090x_WRITE_DEMOD(state, CARHDR, 0x20) < 0)
1531                                 goto err;
1532                 }
1533         } else {
1534                 if (state->srate < 10000000) {
1535                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0xef) < 0)
1536                                 goto err;
1537                 } else {
1538                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0xed) < 0)
1539                                 goto err;
1540                 }
1541         }
1542
1543         switch (state->algo) {
1544         case STV090x_WARM_SEARCH:
1545                 /* The symbol rate and the exact
1546                  * carrier Frequency are known
1547                  */
1548                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
1549                         goto err;
1550                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
1551                         goto err;
1552                 break;
1553
1554         case STV090x_COLD_SEARCH:
1555                 /* The symbol rate is known */
1556                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
1557                         goto err;
1558                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
1559                         goto err;
1560                 break;
1561
1562         default:
1563                 break;
1564         }
1565         return 0;
1566 err:
1567         dprintk(FE_ERROR, 1, "I/O error");
1568         return -1;
1569 }
1570
1571 static int stv090x_get_agc2_min_level(struct stv090x_state *state)
1572 {
1573         u32 agc2_min = 0xffff, agc2 = 0, freq_init, freq_step, reg;
1574         s32 i, j, steps, dir;
1575
1576         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
1577                 goto err;
1578         reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1579         STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 0);
1580         STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0);
1581         if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1582                 goto err;
1583
1584         if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x83) < 0) /* SR = 65 Msps Max */
1585                 goto err;
1586         if (STV090x_WRITE_DEMOD(state, SFRUP0, 0xc0) < 0)
1587                 goto err;
1588         if (STV090x_WRITE_DEMOD(state, SFRLOW1, 0x82) < 0) /* SR= 400 ksps Min */
1589                 goto err;
1590         if (STV090x_WRITE_DEMOD(state, SFRLOW0, 0xa0) < 0)
1591                 goto err;
1592         if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x00) < 0) /* stop acq @ coarse carrier state */
1593                 goto err;
1594         if (stv090x_set_srate(state, 1000000) < 0)
1595                 goto err;
1596
1597         steps  = state->search_range / 1000000;
1598         if (steps <= 0)
1599                 steps = 1;
1600
1601         dir = 1;
1602         freq_step = (1000000 * 256) / (state->internal->mclk / 256);
1603         freq_init = 0;
1604
1605         for (i = 0; i < steps; i++) {
1606                 if (dir > 0)
1607                         freq_init = freq_init + (freq_step * i);
1608                 else
1609                         freq_init = freq_init - (freq_step * i);
1610
1611                 dir *= -1;
1612
1613                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x5c) < 0) /* Demod RESET */
1614                         goto err;
1615                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, (freq_init >> 8) & 0xff) < 0)
1616                         goto err;
1617                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, freq_init & 0xff) < 0)
1618                         goto err;
1619                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x58) < 0) /* Demod RESET */
1620                         goto err;
1621                 msleep(10);
1622
1623                 agc2 = 0;
1624                 for (j = 0; j < 10; j++) {
1625                         agc2 += (STV090x_READ_DEMOD(state, AGC2I1) << 8) |
1626                                 STV090x_READ_DEMOD(state, AGC2I0);
1627                 }
1628                 agc2 /= 10;
1629                 if (agc2 < agc2_min)
1630                         agc2_min = agc2;
1631         }
1632
1633         return agc2_min;
1634 err:
1635         dprintk(FE_ERROR, 1, "I/O error");
1636         return -1;
1637 }
1638
1639 static u32 stv090x_get_srate(struct stv090x_state *state, u32 clk)
1640 {
1641         u8 r3, r2, r1, r0;
1642         s32 srate, int_1, int_2, tmp_1, tmp_2;
1643
1644         r3 = STV090x_READ_DEMOD(state, SFR3);
1645         r2 = STV090x_READ_DEMOD(state, SFR2);
1646         r1 = STV090x_READ_DEMOD(state, SFR1);
1647         r0 = STV090x_READ_DEMOD(state, SFR0);
1648
1649         srate = ((r3 << 24) | (r2 << 16) | (r1 <<  8) | r0);
1650
1651         int_1 = clk >> 16;
1652         int_2 = srate >> 16;
1653
1654         tmp_1 = clk % 0x10000;
1655         tmp_2 = srate % 0x10000;
1656
1657         srate = (int_1 * int_2) +
1658                 ((int_1 * tmp_2) >> 16) +
1659                 ((int_2 * tmp_1) >> 16);
1660
1661         return srate;
1662 }
1663
1664 static u32 stv090x_srate_srch_coarse(struct stv090x_state *state)
1665 {
1666         struct dvb_frontend *fe = &state->frontend;
1667
1668         int tmg_lock = 0, i;
1669         s32 tmg_cpt = 0, dir = 1, steps, cur_step = 0, freq;
1670         u32 srate_coarse = 0, agc2 = 0, car_step = 1200, reg;
1671         u32 agc2th;
1672
1673         if (state->internal->dev_ver >= 0x30)
1674                 agc2th = 0x2e00;
1675         else
1676                 agc2th = 0x1f00;
1677
1678         reg = STV090x_READ_DEMOD(state, DMDISTATE);
1679         STV090x_SETFIELD_Px(reg, I2C_DEMOD_MODE_FIELD, 0x1f); /* Demod RESET */
1680         if (STV090x_WRITE_DEMOD(state, DMDISTATE, reg) < 0)
1681                 goto err;
1682         if (STV090x_WRITE_DEMOD(state, TMGCFG, 0x12) < 0)
1683                 goto err;
1684         if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc0) < 0)
1685                 goto err;
1686         if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0xf0) < 0)
1687                 goto err;
1688         if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0xe0) < 0)
1689                 goto err;
1690         reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1691         STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 1);
1692         STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0);
1693         if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1694                 goto err;
1695
1696         if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x83) < 0)
1697                 goto err;
1698         if (STV090x_WRITE_DEMOD(state, SFRUP0, 0xc0) < 0)
1699                 goto err;
1700         if (STV090x_WRITE_DEMOD(state, SFRLOW1, 0x82) < 0)
1701                 goto err;
1702         if (STV090x_WRITE_DEMOD(state, SFRLOW0, 0xa0) < 0)
1703                 goto err;
1704         if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x00) < 0)
1705                 goto err;
1706         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x50) < 0)
1707                 goto err;
1708
1709         if (state->internal->dev_ver >= 0x30) {
1710                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x99) < 0)
1711                         goto err;
1712                 if (STV090x_WRITE_DEMOD(state, SFRSTEP, 0x98) < 0)
1713                         goto err;
1714
1715         } else if (state->internal->dev_ver >= 0x20) {
1716                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x6a) < 0)
1717                         goto err;
1718                 if (STV090x_WRITE_DEMOD(state, SFRSTEP, 0x95) < 0)
1719                         goto err;
1720         }
1721
1722         if (state->srate <= 2000000)
1723                 car_step = 1000;
1724         else if (state->srate <= 5000000)
1725                 car_step = 2000;
1726         else if (state->srate <= 12000000)
1727                 car_step = 3000;
1728         else
1729                 car_step = 5000;
1730
1731         steps  = -1 + ((state->search_range / 1000) / car_step);
1732         steps /= 2;
1733         steps  = (2 * steps) + 1;
1734         if (steps < 0)
1735                 steps = 1;
1736         else if (steps > 10) {
1737                 steps = 11;
1738                 car_step = (state->search_range / 1000) / 10;
1739         }
1740         cur_step = 0;
1741         dir = 1;
1742         freq = state->frequency;
1743
1744         while ((!tmg_lock) && (cur_step < steps)) {
1745                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x5f) < 0) /* Demod RESET */
1746                         goto err;
1747                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0)
1748                         goto err;
1749                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
1750                         goto err;
1751                 if (STV090x_WRITE_DEMOD(state, SFRINIT1, 0x00) < 0)
1752                         goto err;
1753                 if (STV090x_WRITE_DEMOD(state, SFRINIT0, 0x00) < 0)
1754                         goto err;
1755                 /* trigger acquisition */
1756                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x40) < 0)
1757                         goto err;
1758                 msleep(50);
1759                 for (i = 0; i < 10; i++) {
1760                         reg = STV090x_READ_DEMOD(state, DSTATUS);
1761                         if (STV090x_GETFIELD_Px(reg, TMGLOCK_QUALITY_FIELD) >= 2)
1762                                 tmg_cpt++;
1763                         agc2 += (STV090x_READ_DEMOD(state, AGC2I1) << 8) |
1764                                 STV090x_READ_DEMOD(state, AGC2I0);
1765                 }
1766                 agc2 /= 10;
1767                 srate_coarse = stv090x_get_srate(state, state->internal->mclk);
1768                 cur_step++;
1769                 dir *= -1;
1770                 if ((tmg_cpt >= 5) && (agc2 < agc2th) &&
1771                     (srate_coarse < 50000000) && (srate_coarse > 850000))
1772                         tmg_lock = 1;
1773                 else if (cur_step < steps) {
1774                         if (dir > 0)
1775                                 freq += cur_step * car_step;
1776                         else
1777                                 freq -= cur_step * car_step;
1778
1779                         /* Setup tuner */
1780                         if (stv090x_i2c_gate_ctrl(fe, 1) < 0)
1781                                 goto err;
1782
1783                         if (state->config->tuner_set_frequency) {
1784                                 if (state->config->tuner_set_frequency(fe, freq) < 0)
1785                                         goto err_gateoff;
1786                         }
1787
1788                         if (state->config->tuner_set_bandwidth) {
1789                                 if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
1790                                         goto err_gateoff;
1791                         }
1792
1793                         if (stv090x_i2c_gate_ctrl(fe, 0) < 0)
1794                                 goto err;
1795
1796                         msleep(50);
1797
1798                         if (stv090x_i2c_gate_ctrl(fe, 1) < 0)
1799                                 goto err;
1800
1801                         if (state->config->tuner_get_status) {
1802                                 if (state->config->tuner_get_status(fe, &reg) < 0)
1803                                         goto err_gateoff;
1804                         }
1805
1806                         if (reg)
1807                                 dprintk(FE_DEBUG, 1, "Tuner phase locked");
1808                         else
1809                                 dprintk(FE_DEBUG, 1, "Tuner unlocked");
1810
1811                         if (stv090x_i2c_gate_ctrl(fe, 0) < 0)
1812                                 goto err;
1813
1814                 }
1815         }
1816         if (!tmg_lock)
1817                 srate_coarse = 0;
1818         else
1819                 srate_coarse = stv090x_get_srate(state, state->internal->mclk);
1820
1821         return srate_coarse;
1822
1823 err_gateoff:
1824         stv090x_i2c_gate_ctrl(fe, 0);
1825 err:
1826         dprintk(FE_ERROR, 1, "I/O error");
1827         return -1;
1828 }
1829
1830 static u32 stv090x_srate_srch_fine(struct stv090x_state *state)
1831 {
1832         u32 srate_coarse, freq_coarse, sym, reg;
1833
1834         srate_coarse = stv090x_get_srate(state, state->internal->mclk);
1835         freq_coarse  = STV090x_READ_DEMOD(state, CFR2) << 8;
1836         freq_coarse |= STV090x_READ_DEMOD(state, CFR1);
1837         sym = 13 * (srate_coarse / 10); /* SFRUP = SFR + 30% */
1838
1839         if (sym < state->srate)
1840                 srate_coarse = 0;
1841         else {
1842                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0) /* Demod RESET */
1843                         goto err;
1844                 if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc1) < 0)
1845                         goto err;
1846                 if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0x20) < 0)
1847                         goto err;
1848                 if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0x00) < 0)
1849                         goto err;
1850                 if (STV090x_WRITE_DEMOD(state, TMGCFG, 0xd2) < 0)
1851                         goto err;
1852                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1853                 STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0x00);
1854                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1855                         goto err;
1856
1857                 if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
1858                         goto err;
1859
1860                 if (state->internal->dev_ver >= 0x30) {
1861                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x79) < 0)
1862                                 goto err;
1863                 } else if (state->internal->dev_ver >= 0x20) {
1864                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x49) < 0)
1865                                 goto err;
1866                 }
1867
1868                 if (srate_coarse > 3000000) {
1869                         sym  = 13 * (srate_coarse / 10); /* SFRUP = SFR + 30% */
1870                         sym  = (sym / 1000) * 65536;
1871                         sym /= (state->internal->mclk / 1000);
1872                         if (STV090x_WRITE_DEMOD(state, SFRUP1, (sym >> 8) & 0x7f) < 0)
1873                                 goto err;
1874                         if (STV090x_WRITE_DEMOD(state, SFRUP0, sym & 0xff) < 0)
1875                                 goto err;
1876                         sym  = 10 * (srate_coarse / 13); /* SFRLOW = SFR - 30% */
1877                         sym  = (sym / 1000) * 65536;
1878                         sym /= (state->internal->mclk / 1000);
1879                         if (STV090x_WRITE_DEMOD(state, SFRLOW1, (sym >> 8) & 0x7f) < 0)
1880                                 goto err;
1881                         if (STV090x_WRITE_DEMOD(state, SFRLOW0, sym & 0xff) < 0)
1882                                 goto err;
1883                         sym  = (srate_coarse / 1000) * 65536;
1884                         sym /= (state->internal->mclk / 1000);
1885                         if (STV090x_WRITE_DEMOD(state, SFRINIT1, (sym >> 8) & 0xff) < 0)
1886                                 goto err;
1887                         if (STV090x_WRITE_DEMOD(state, SFRINIT0, sym & 0xff) < 0)
1888                                 goto err;
1889                 } else {
1890                         sym  = 13 * (srate_coarse / 10); /* SFRUP = SFR + 30% */
1891                         sym  = (sym / 100) * 65536;
1892                         sym /= (state->internal->mclk / 100);
1893                         if (STV090x_WRITE_DEMOD(state, SFRUP1, (sym >> 8) & 0x7f) < 0)
1894                                 goto err;
1895                         if (STV090x_WRITE_DEMOD(state, SFRUP0, sym & 0xff) < 0)
1896                                 goto err;
1897                         sym  = 10 * (srate_coarse / 14); /* SFRLOW = SFR - 30% */
1898                         sym  = (sym / 100) * 65536;
1899                         sym /= (state->internal->mclk / 100);
1900                         if (STV090x_WRITE_DEMOD(state, SFRLOW1, (sym >> 8) & 0x7f) < 0)
1901                                 goto err;
1902                         if (STV090x_WRITE_DEMOD(state, SFRLOW0, sym & 0xff) < 0)
1903                                 goto err;
1904                         sym  = (srate_coarse / 100) * 65536;
1905                         sym /= (state->internal->mclk / 100);
1906                         if (STV090x_WRITE_DEMOD(state, SFRINIT1, (sym >> 8) & 0xff) < 0)
1907                                 goto err;
1908                         if (STV090x_WRITE_DEMOD(state, SFRINIT0, sym & 0xff) < 0)
1909                                 goto err;
1910                 }
1911                 if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x20) < 0)
1912                         goto err;
1913                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, (freq_coarse >> 8) & 0xff) < 0)
1914                         goto err;
1915                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, freq_coarse & 0xff) < 0)
1916                         goto err;
1917                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0) /* trigger acquisition */
1918                         goto err;
1919         }
1920
1921         return srate_coarse;
1922
1923 err:
1924         dprintk(FE_ERROR, 1, "I/O error");
1925         return -1;
1926 }
1927
1928 static int stv090x_get_dmdlock(struct stv090x_state *state, s32 timeout)
1929 {
1930         s32 timer = 0, lock = 0;
1931         u32 reg;
1932         u8 stat;
1933
1934         while ((timer < timeout) && (!lock)) {
1935                 reg = STV090x_READ_DEMOD(state, DMDSTATE);
1936                 stat = STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD);
1937
1938                 switch (stat) {
1939                 case 0: /* searching */
1940                 case 1: /* first PLH detected */
1941                 default:
1942                         dprintk(FE_DEBUG, 1, "Demodulator searching ..");
1943                         lock = 0;
1944                         break;
1945                 case 2: /* DVB-S2 mode */
1946                 case 3: /* DVB-S1/legacy mode */
1947                         reg = STV090x_READ_DEMOD(state, DSTATUS);
1948                         lock = STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD);
1949                         break;
1950                 }
1951
1952                 if (!lock)
1953                         msleep(10);
1954                 else
1955                         dprintk(FE_DEBUG, 1, "Demodulator acquired LOCK");
1956
1957                 timer += 10;
1958         }
1959         return lock;
1960 }
1961
1962 static int stv090x_blind_search(struct stv090x_state *state)
1963 {
1964         u32 agc2, reg, srate_coarse;
1965         s32 cpt_fail, agc2_ovflw, i;
1966         u8 k_ref, k_max, k_min;
1967         int coarse_fail = 0;
1968         int lock;
1969
1970         k_max = 110;
1971         k_min = 10;
1972
1973         agc2 = stv090x_get_agc2_min_level(state);
1974
1975         if (agc2 > STV090x_SEARCH_AGC2_TH(state->internal->dev_ver)) {
1976                 lock = 0;
1977         } else {
1978
1979                 if (state->internal->dev_ver <= 0x20) {
1980                         if (STV090x_WRITE_DEMOD(state, CARCFG, 0xc4) < 0)
1981                                 goto err;
1982                 } else {
1983                         /* > Cut 3 */
1984                         if (STV090x_WRITE_DEMOD(state, CARCFG, 0x06) < 0)
1985                                 goto err;
1986                 }
1987
1988                 if (STV090x_WRITE_DEMOD(state, RTCS2, 0x44) < 0)
1989                         goto err;
1990
1991                 if (state->internal->dev_ver >= 0x20) {
1992                         if (STV090x_WRITE_DEMOD(state, EQUALCFG, 0x41) < 0)
1993                                 goto err;
1994                         if (STV090x_WRITE_DEMOD(state, FFECFG, 0x41) < 0)
1995                                 goto err;
1996                         if (STV090x_WRITE_DEMOD(state, VITSCALE, 0x82) < 0)
1997                                 goto err;
1998                         if (STV090x_WRITE_DEMOD(state, VAVSRVIT, 0x00) < 0) /* set viterbi hysteresis */
1999                                 goto err;
2000                 }
2001
2002                 k_ref = k_max;
2003                 do {
2004                         if (STV090x_WRITE_DEMOD(state, KREFTMG, k_ref) < 0)
2005                                 goto err;
2006                         if (stv090x_srate_srch_coarse(state) != 0) {
2007                                 srate_coarse = stv090x_srate_srch_fine(state);
2008                                 if (srate_coarse != 0) {
2009                                         stv090x_get_lock_tmg(state);
2010                                         lock = stv090x_get_dmdlock(state,
2011                                                         state->DemodTimeout);
2012                                 } else {
2013                                         lock = 0;
2014                                 }
2015                         } else {
2016                                 cpt_fail = 0;
2017                                 agc2_ovflw = 0;
2018                                 for (i = 0; i < 10; i++) {
2019                                         agc2 += (STV090x_READ_DEMOD(state, AGC2I1) << 8) |
2020                                                 STV090x_READ_DEMOD(state, AGC2I0);
2021                                         if (agc2 >= 0xff00)
2022                                                 agc2_ovflw++;
2023                                         reg = STV090x_READ_DEMOD(state, DSTATUS2);
2024                                         if ((STV090x_GETFIELD_Px(reg, CFR_OVERFLOW_FIELD) == 0x01) &&
2025                                             (STV090x_GETFIELD_Px(reg, DEMOD_DELOCK_FIELD) == 0x01))
2026
2027                                                 cpt_fail++;
2028                                 }
2029                                 if ((cpt_fail > 7) || (agc2_ovflw > 7))
2030                                         coarse_fail = 1;
2031
2032                                 lock = 0;
2033                         }
2034                         k_ref -= 20;
2035                 } while ((k_ref >= k_min) && (!lock) && (!coarse_fail));
2036         }
2037
2038         return lock;
2039
2040 err:
2041         dprintk(FE_ERROR, 1, "I/O error");
2042         return -1;
2043 }
2044
2045 static int stv090x_chk_tmg(struct stv090x_state *state)
2046 {
2047         u32 reg;
2048         s32 tmg_cpt = 0, i;
2049         u8 freq, tmg_thh, tmg_thl;
2050         int tmg_lock = 0;
2051
2052         freq = STV090x_READ_DEMOD(state, CARFREQ);
2053         tmg_thh = STV090x_READ_DEMOD(state, TMGTHRISE);
2054         tmg_thl = STV090x_READ_DEMOD(state, TMGTHFALL);
2055         if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0x20) < 0)
2056                 goto err;
2057         if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0x00) < 0)
2058                 goto err;
2059
2060         reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2061         STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0x00); /* stop carrier offset search */
2062         if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2063                 goto err;
2064         if (STV090x_WRITE_DEMOD(state, RTC, 0x80) < 0)
2065                 goto err;
2066
2067         if (STV090x_WRITE_DEMOD(state, RTCS2, 0x40) < 0)
2068                 goto err;
2069         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x00) < 0)
2070                 goto err;
2071
2072         if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0) /* set car ofset to 0 */
2073                 goto err;
2074         if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
2075                 goto err;
2076         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x65) < 0)
2077                 goto err;
2078
2079         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0) /* trigger acquisition */
2080                 goto err;
2081         msleep(10);
2082
2083         for (i = 0; i < 10; i++) {
2084                 reg = STV090x_READ_DEMOD(state, DSTATUS);
2085                 if (STV090x_GETFIELD_Px(reg, TMGLOCK_QUALITY_FIELD) >= 2)
2086                         tmg_cpt++;
2087                 msleep(1);
2088         }
2089         if (tmg_cpt >= 3)
2090                 tmg_lock = 1;
2091
2092         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
2093                 goto err;
2094         if (STV090x_WRITE_DEMOD(state, RTC, 0x88) < 0) /* DVB-S1 timing */
2095                 goto err;
2096         if (STV090x_WRITE_DEMOD(state, RTCS2, 0x68) < 0) /* DVB-S2 timing */
2097                 goto err;
2098
2099         if (STV090x_WRITE_DEMOD(state, CARFREQ, freq) < 0)
2100                 goto err;
2101         if (STV090x_WRITE_DEMOD(state, TMGTHRISE, tmg_thh) < 0)
2102                 goto err;
2103         if (STV090x_WRITE_DEMOD(state, TMGTHFALL, tmg_thl) < 0)
2104                 goto err;
2105
2106         return  tmg_lock;
2107
2108 err:
2109         dprintk(FE_ERROR, 1, "I/O error");
2110         return -1;
2111 }
2112
2113 static int stv090x_get_coldlock(struct stv090x_state *state, s32 timeout_dmd)
2114 {
2115         struct dvb_frontend *fe = &state->frontend;
2116
2117         u32 reg;
2118         s32 car_step, steps, cur_step, dir, freq, timeout_lock;
2119         int lock = 0;
2120
2121         if (state->srate >= 10000000)
2122                 timeout_lock = timeout_dmd / 3;
2123         else
2124                 timeout_lock = timeout_dmd / 2;
2125
2126         lock = stv090x_get_dmdlock(state, timeout_lock); /* cold start wait */
2127         if (!lock) {
2128                 if (state->srate >= 10000000) {
2129                         if (stv090x_chk_tmg(state)) {
2130                                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
2131                                         goto err;
2132                                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
2133                                         goto err;
2134                                 lock = stv090x_get_dmdlock(state, timeout_dmd);
2135                         } else {
2136                                 lock = 0;
2137                         }
2138                 } else {
2139                         if (state->srate <= 4000000)
2140                                 car_step = 1000;
2141                         else if (state->srate <= 7000000)
2142                                 car_step = 2000;
2143                         else if (state->srate <= 10000000)
2144                                 car_step = 3000;
2145                         else
2146                                 car_step = 5000;
2147
2148                         steps  = (state->search_range / 1000) / car_step;
2149                         steps /= 2;
2150                         steps  = 2 * (steps + 1);
2151                         if (steps < 0)
2152                                 steps = 2;
2153                         else if (steps > 12)
2154                                 steps = 12;
2155
2156                         cur_step = 1;
2157                         dir = 1;
2158
2159                         if (!lock) {
2160                                 freq = state->frequency;
2161                                 state->tuner_bw = stv090x_car_width(state->srate, state->rolloff) + state->srate;
2162                                 while ((cur_step <= steps) && (!lock)) {
2163                                         if (dir > 0)
2164                                                 freq += cur_step * car_step;
2165                                         else
2166                                                 freq -= cur_step * car_step;
2167
2168                                         /* Setup tuner */
2169                                         if (stv090x_i2c_gate_ctrl(fe, 1) < 0)
2170                                                 goto err;
2171
2172                                         if (state->config->tuner_set_frequency) {
2173                                                 if (state->config->tuner_set_frequency(fe, freq) < 0)
2174                                                         goto err_gateoff;
2175                                         }
2176
2177                                         if (state->config->tuner_set_bandwidth) {
2178                                                 if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
2179                                                         goto err_gateoff;
2180                                         }
2181
2182                                         if (stv090x_i2c_gate_ctrl(fe, 0) < 0)
2183                                                 goto err;
2184
2185                                         msleep(50);
2186
2187                                         if (stv090x_i2c_gate_ctrl(fe, 1) < 0)
2188                                                 goto err;
2189
2190                                         if (state->config->tuner_get_status) {
2191                                                 if (state->config->tuner_get_status(fe, &reg) < 0)
2192                                                         goto err_gateoff;
2193                                         }
2194
2195                                         if (reg)
2196                                                 dprintk(FE_DEBUG, 1, "Tuner phase locked");
2197                                         else
2198                                                 dprintk(FE_DEBUG, 1, "Tuner unlocked");
2199
2200                                         if (stv090x_i2c_gate_ctrl(fe, 0) < 0)
2201                                                 goto err;
2202
2203                                         STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1c);
2204                                         if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0)
2205                                                 goto err;
2206                                         if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
2207                                                 goto err;
2208                                         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
2209                                                 goto err;
2210                                         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
2211                                                 goto err;
2212                                         lock = stv090x_get_dmdlock(state, (timeout_dmd / 3));
2213
2214                                         dir *= -1;
2215                                         cur_step++;
2216                                 }
2217                         }
2218                 }
2219         }
2220
2221         return lock;
2222
2223 err_gateoff:
2224         stv090x_i2c_gate_ctrl(fe, 0);
2225 err:
2226         dprintk(FE_ERROR, 1, "I/O error");
2227         return -1;
2228 }
2229
2230 static int stv090x_get_loop_params(struct stv090x_state *state, s32 *freq_inc, s32 *timeout_sw, s32 *steps)
2231 {
2232         s32 timeout, inc, steps_max, srate, car_max;
2233
2234         srate = state->srate;
2235         car_max = state->search_range / 1000;
2236         car_max += car_max / 10;
2237         car_max  = 65536 * (car_max / 2);
2238         car_max /= (state->internal->mclk / 1000);
2239
2240         if (car_max > 0x4000)
2241                 car_max = 0x4000 ; /* maxcarrier should be<= +-1/4 Mclk */
2242
2243         inc  = srate;
2244         inc /= state->internal->mclk / 1000;
2245         inc *= 256;
2246         inc *= 256;
2247         inc /= 1000;
2248
2249         switch (state->search_mode) {
2250         case STV090x_SEARCH_DVBS1:
2251         case STV090x_SEARCH_DSS:
2252                 inc *= 3; /* freq step = 3% of srate */
2253                 timeout = 20;
2254                 break;
2255
2256         case STV090x_SEARCH_DVBS2:
2257                 inc *= 4;
2258                 timeout = 25;
2259                 break;
2260
2261         case STV090x_SEARCH_AUTO:
2262         default:
2263                 inc *= 3;
2264                 timeout = 25;
2265                 break;
2266         }
2267         inc /= 100;
2268         if ((inc > car_max) || (inc < 0))
2269                 inc = car_max / 2; /* increment <= 1/8 Mclk */
2270
2271         timeout *= 27500; /* 27.5 Msps reference */
2272         if (srate > 0)
2273                 timeout /= (srate / 1000);
2274
2275         if ((timeout > 100) || (timeout < 0))
2276                 timeout = 100;
2277
2278         steps_max = (car_max / inc) + 1; /* min steps = 3 */
2279         if ((steps_max > 100) || (steps_max < 0)) {
2280                 steps_max = 100; /* max steps <= 100 */
2281                 inc = car_max / steps_max;
2282         }
2283         *freq_inc = inc;
2284         *timeout_sw = timeout;
2285         *steps = steps_max;
2286
2287         return 0;
2288 }
2289
2290 static int stv090x_chk_signal(struct stv090x_state *state)
2291 {
2292         s32 offst_car, agc2, car_max;
2293         int no_signal;
2294
2295         offst_car  = STV090x_READ_DEMOD(state, CFR2) << 8;
2296         offst_car |= STV090x_READ_DEMOD(state, CFR1);
2297         offst_car = comp2(offst_car, 16);
2298
2299         agc2  = STV090x_READ_DEMOD(state, AGC2I1) << 8;
2300         agc2 |= STV090x_READ_DEMOD(state, AGC2I0);
2301         car_max = state->search_range / 1000;
2302
2303         car_max += (car_max / 10); /* 10% margin */
2304         car_max  = (65536 * car_max / 2);
2305         car_max /= state->internal->mclk / 1000;
2306
2307         if (car_max > 0x4000)
2308                 car_max = 0x4000;
2309
2310         if ((agc2 > 0x2000) || (offst_car > 2 * car_max) || (offst_car < -2 * car_max)) {
2311                 no_signal = 1;
2312                 dprintk(FE_DEBUG, 1, "No Signal");
2313         } else {
2314                 no_signal = 0;
2315                 dprintk(FE_DEBUG, 1, "Found Signal");
2316         }
2317
2318         return no_signal;
2319 }
2320
2321 static int stv090x_search_car_loop(struct stv090x_state *state, s32 inc, s32 timeout, int zigzag, s32 steps_max)
2322 {
2323         int no_signal, lock = 0;
2324         s32 cpt_step = 0, offst_freq, car_max;
2325         u32 reg;
2326
2327         car_max  = state->search_range / 1000;
2328         car_max += (car_max / 10);
2329         car_max  = (65536 * car_max / 2);
2330         car_max /= (state->internal->mclk / 1000);
2331         if (car_max > 0x4000)
2332                 car_max = 0x4000;
2333
2334         if (zigzag)
2335                 offst_freq = 0;
2336         else
2337                 offst_freq = -car_max + inc;
2338
2339         do {
2340                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1c) < 0)
2341                         goto err;
2342                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, ((offst_freq / 256) & 0xff)) < 0)
2343                         goto err;
2344                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, offst_freq & 0xff) < 0)
2345                         goto err;
2346                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
2347                         goto err;
2348
2349                 reg = STV090x_READ_DEMOD(state, PDELCTRL1);
2350                 STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0x1); /* stop DVB-S2 packet delin */
2351                 if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
2352                         goto err;
2353
2354                 if (zigzag) {
2355                         if (offst_freq >= 0)
2356                                 offst_freq = -offst_freq - 2 * inc;
2357                         else
2358                                 offst_freq = -offst_freq;
2359                 } else {
2360                         offst_freq += 2 * inc;
2361                 }
2362
2363                 cpt_step++;
2364
2365                 lock = stv090x_get_dmdlock(state, timeout);
2366                 no_signal = stv090x_chk_signal(state);
2367
2368         } while ((!lock) &&
2369                  (!no_signal) &&
2370                   ((offst_freq - inc) < car_max) &&
2371                   ((offst_freq + inc) > -car_max) &&
2372                   (cpt_step < steps_max));
2373
2374         reg = STV090x_READ_DEMOD(state, PDELCTRL1);
2375         STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0);
2376         if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
2377                         goto err;
2378
2379         return lock;
2380 err:
2381         dprintk(FE_ERROR, 1, "I/O error");
2382         return -1;
2383 }
2384
2385 static int stv090x_sw_algo(struct stv090x_state *state)
2386 {
2387         int no_signal, zigzag, lock = 0;
2388         u32 reg;
2389
2390         s32 dvbs2_fly_wheel;
2391         s32 inc, timeout_step, trials, steps_max;
2392
2393         /* get params */
2394         stv090x_get_loop_params(state, &inc, &timeout_step, &steps_max);
2395
2396         switch (state->search_mode) {
2397         case STV090x_SEARCH_DVBS1:
2398         case STV090x_SEARCH_DSS:
2399                 /* accelerate the frequency detector */
2400                 if (state->internal->dev_ver >= 0x20) {
2401                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x3B) < 0)
2402                                 goto err;
2403                 }
2404
2405                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x49) < 0)
2406                         goto err;
2407                 zigzag = 0;
2408                 break;
2409
2410         case STV090x_SEARCH_DVBS2:
2411                 if (state->internal->dev_ver >= 0x20) {
2412                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x79) < 0)
2413                                 goto err;
2414                 }
2415
2416                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x89) < 0)
2417                         goto err;
2418                 zigzag = 1;
2419                 break;
2420
2421         case STV090x_SEARCH_AUTO:
2422         default:
2423                 /* accelerate the frequency detector */
2424                 if (state->internal->dev_ver >= 0x20) {
2425                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x3b) < 0)
2426                                 goto err;
2427                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x79) < 0)
2428                                 goto err;
2429                 }
2430
2431                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0xc9) < 0)
2432                         goto err;
2433                 zigzag = 0;
2434                 break;
2435         }
2436
2437         trials = 0;
2438         do {
2439                 lock = stv090x_search_car_loop(state, inc, timeout_step, zigzag, steps_max);
2440                 no_signal = stv090x_chk_signal(state);
2441                 trials++;
2442
2443                 /*run the SW search 2 times maximum*/
2444                 if (lock || no_signal || (trials == 2)) {
2445                         /*Check if the demod is not losing lock in DVBS2*/
2446                         if (state->internal->dev_ver >= 0x20) {
2447                                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x49) < 0)
2448                                         goto err;
2449                                 if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x9e) < 0)
2450                                         goto err;
2451                         }
2452
2453                         reg = STV090x_READ_DEMOD(state, DMDSTATE);
2454                         if ((lock) && (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == STV090x_DVBS2)) {
2455                                 /*Check if the demod is not losing lock in DVBS2*/
2456                                 msleep(timeout_step);
2457                                 reg = STV090x_READ_DEMOD(state, DMDFLYW);
2458                                 dvbs2_fly_wheel = STV090x_GETFIELD_Px(reg, FLYWHEEL_CPT_FIELD);
2459                                 if (dvbs2_fly_wheel < 0xd) {     /*if correct frames is decrementing */
2460                                         msleep(timeout_step);
2461                                         reg = STV090x_READ_DEMOD(state, DMDFLYW);
2462                                         dvbs2_fly_wheel = STV090x_GETFIELD_Px(reg, FLYWHEEL_CPT_FIELD);
2463                                 }
2464                                 if (dvbs2_fly_wheel < 0xd) {
2465                                         /*FALSE lock, The demod is loosing lock */
2466                                         lock = 0;
2467                                         if (trials < 2) {
2468                                                 if (state->internal->dev_ver >= 0x20) {
2469                                                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x79) < 0)
2470                                                                 goto err;
2471                                                 }
2472
2473                                                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x89) < 0)
2474                                                         goto err;
2475                                         }
2476                                 }
2477                         }
2478                 }
2479         } while ((!lock) && (trials < 2) && (!no_signal));
2480
2481         return lock;
2482 err:
2483         dprintk(FE_ERROR, 1, "I/O error");
2484         return -1;
2485 }
2486
2487 static enum stv090x_delsys stv090x_get_std(struct stv090x_state *state)
2488 {
2489         u32 reg;
2490         enum stv090x_delsys delsys;
2491
2492         reg = STV090x_READ_DEMOD(state, DMDSTATE);
2493         if (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == 2)
2494                 delsys = STV090x_DVBS2;
2495         else if (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == 3) {
2496                 reg = STV090x_READ_DEMOD(state, FECM);
2497                 if (STV090x_GETFIELD_Px(reg, DSS_DVB_FIELD) == 1)
2498                         delsys = STV090x_DSS;
2499                 else
2500                         delsys = STV090x_DVBS1;
2501         } else {
2502                 delsys = STV090x_ERROR;
2503         }
2504
2505         return delsys;
2506 }
2507
2508 /* in Hz */
2509 static s32 stv090x_get_car_freq(struct stv090x_state *state, u32 mclk)
2510 {
2511         s32 derot, int_1, int_2, tmp_1, tmp_2;
2512
2513         derot  = STV090x_READ_DEMOD(state, CFR2) << 16;
2514         derot |= STV090x_READ_DEMOD(state, CFR1) <<  8;
2515         derot |= STV090x_READ_DEMOD(state, CFR0);
2516
2517         derot = comp2(derot, 24);
2518         int_1 = mclk >> 12;
2519         int_2 = derot >> 12;
2520
2521         /* carrier_frequency = MasterClock * Reg / 2^24 */
2522         tmp_1 = mclk % 0x1000;
2523         tmp_2 = derot % 0x1000;
2524
2525         derot = (int_1 * int_2) +
2526                 ((int_1 * tmp_2) >> 12) +
2527                 ((int_2 * tmp_1) >> 12);
2528
2529         return derot;
2530 }
2531
2532 static int stv090x_get_viterbi(struct stv090x_state *state)
2533 {
2534         u32 reg, rate;
2535
2536         reg = STV090x_READ_DEMOD(state, VITCURPUN);
2537         rate = STV090x_GETFIELD_Px(reg, VIT_CURPUN_FIELD);
2538
2539         switch (rate) {
2540         case 13:
2541                 state->fec = STV090x_PR12;
2542                 break;
2543
2544         case 18:
2545                 state->fec = STV090x_PR23;
2546                 break;
2547
2548         case 21:
2549                 state->fec = STV090x_PR34;
2550                 break;
2551
2552         case 24:
2553                 state->fec = STV090x_PR56;
2554                 break;
2555
2556         case 25:
2557                 state->fec = STV090x_PR67;
2558                 break;
2559
2560         case 26:
2561                 state->fec = STV090x_PR78;
2562                 break;
2563
2564         default:
2565                 state->fec = STV090x_PRERR;
2566                 break;
2567         }
2568
2569         return 0;
2570 }
2571
2572 static enum stv090x_signal_state stv090x_get_sig_params(struct stv090x_state *state)
2573 {
2574         struct dvb_frontend *fe = &state->frontend;
2575
2576         u8 tmg;
2577         u32 reg;
2578         s32 i = 0, offst_freq;
2579
2580         msleep(5);
2581
2582         if (state->algo == STV090x_BLIND_SEARCH) {
2583                 tmg = STV090x_READ_DEMOD(state, TMGREG2);
2584                 STV090x_WRITE_DEMOD(state, SFRSTEP, 0x5c);
2585                 while ((i <= 50) && (tmg != 0) && (tmg != 0xff)) {
2586                         tmg = STV090x_READ_DEMOD(state, TMGREG2);
2587                         msleep(5);
2588                         i += 5;
2589                 }
2590         }
2591         state->delsys = stv090x_get_std(state);
2592
2593         if (stv090x_i2c_gate_ctrl(fe, 1) < 0)
2594                 goto err;
2595
2596         if (state->config->tuner_get_frequency) {
2597                 if (state->config->tuner_get_frequency(fe, &state->frequency) < 0)
2598                         goto err_gateoff;
2599         }
2600
2601         if (stv090x_i2c_gate_ctrl(fe, 0) < 0)
2602                 goto err;
2603
2604         offst_freq = stv090x_get_car_freq(state, state->internal->mclk) / 1000;
2605         state->frequency += offst_freq;
2606
2607         if (stv090x_get_viterbi(state) < 0)
2608                 goto err;
2609
2610         reg = STV090x_READ_DEMOD(state, DMDMODCOD);
2611         state->modcod = STV090x_GETFIELD_Px(reg, DEMOD_MODCOD_FIELD);
2612         state->pilots = STV090x_GETFIELD_Px(reg, DEMOD_TYPE_FIELD) & 0x01;
2613         state->frame_len = STV090x_GETFIELD_Px(reg, DEMOD_TYPE_FIELD) >> 1;
2614         reg = STV090x_READ_DEMOD(state, TMGOBS);
2615         state->rolloff = STV090x_GETFIELD_Px(reg, ROLLOFF_STATUS_FIELD);
2616         reg = STV090x_READ_DEMOD(state, FECM);
2617         state->inversion = STV090x_GETFIELD_Px(reg, IQINV_FIELD);
2618
2619         if ((state->algo == STV090x_BLIND_SEARCH) || (state->srate < 10000000)) {
2620
2621                 if (stv090x_i2c_gate_ctrl(fe, 1) < 0)
2622                         goto err;
2623
2624                 if (state->config->tuner_get_frequency) {
2625                         if (state->config->tuner_get_frequency(fe, &state->frequency) < 0)
2626                                 goto err_gateoff;
2627                 }
2628
2629                 if (stv090x_i2c_gate_ctrl(fe, 0) < 0)
2630                         goto err;
2631
2632                 if (abs(offst_freq) <= ((state->search_range / 2000) + 500))
2633                         return STV090x_RANGEOK;
2634                 else if (abs(offst_freq) <= (stv090x_car_width(state->srate, state->rolloff) / 2000))
2635                         return STV090x_RANGEOK;
2636                 else
2637                         return STV090x_OUTOFRANGE; /* Out of Range */
2638         } else {
2639                 if (abs(offst_freq) <= ((state->search_range / 2000) + 500))
2640                         return STV090x_RANGEOK;
2641                 else
2642                         return STV090x_OUTOFRANGE;
2643         }
2644
2645         return STV090x_OUTOFRANGE;
2646
2647 err_gateoff:
2648         stv090x_i2c_gate_ctrl(fe, 0);
2649 err:
2650         dprintk(FE_ERROR, 1, "I/O error");
2651         return -1;
2652 }
2653
2654 static u32 stv090x_get_tmgoffst(struct stv090x_state *state, u32 srate)
2655 {
2656         s32 offst_tmg;
2657
2658         offst_tmg  = STV090x_READ_DEMOD(state, TMGREG2) << 16;
2659         offst_tmg |= STV090x_READ_DEMOD(state, TMGREG1) <<  8;
2660         offst_tmg |= STV090x_READ_DEMOD(state, TMGREG0);
2661
2662         offst_tmg = comp2(offst_tmg, 24); /* 2's complement */
2663         if (!offst_tmg)
2664                 offst_tmg = 1;
2665
2666         offst_tmg  = ((s32) srate * 10) / ((s32) 0x1000000 / offst_tmg);
2667         offst_tmg /= 320;
2668
2669         return offst_tmg;
2670 }
2671
2672 static u8 stv090x_optimize_carloop(struct stv090x_state *state, enum stv090x_modcod modcod, s32 pilots)
2673 {
2674         u8 aclc = 0x29;
2675         s32 i;
2676         struct stv090x_long_frame_crloop *car_loop, *car_loop_qpsk_low, *car_loop_apsk_low;
2677
2678         if (state->internal->dev_ver == 0x20) {
2679                 car_loop                = stv090x_s2_crl_cut20;
2680                 car_loop_qpsk_low       = stv090x_s2_lowqpsk_crl_cut20;
2681                 car_loop_apsk_low       = stv090x_s2_apsk_crl_cut20;
2682         } else {
2683                 /* >= Cut 3 */
2684                 car_loop                = stv090x_s2_crl_cut30;
2685                 car_loop_qpsk_low       = stv090x_s2_lowqpsk_crl_cut30;
2686                 car_loop_apsk_low       = stv090x_s2_apsk_crl_cut30;
2687         }
2688
2689         if (modcod < STV090x_QPSK_12) {
2690                 i = 0;
2691                 while ((i < 3) && (modcod != car_loop_qpsk_low[i].modcod))
2692                         i++;
2693
2694                 if (i >= 3)
2695                         i = 2;
2696
2697         } else {
2698                 i = 0;
2699                 while ((i < 14) && (modcod != car_loop[i].modcod))
2700                         i++;
2701
2702                 if (i >= 14) {
2703                         i = 0;
2704                         while ((i < 11) && (modcod != car_loop_apsk_low[i].modcod))
2705                                 i++;
2706
2707                         if (i >= 11)
2708                                 i = 10;
2709                 }
2710         }
2711
2712         if (modcod <= STV090x_QPSK_25) {
2713                 if (pilots) {
2714                         if (state->srate <= 3000000)
2715                                 aclc = car_loop_qpsk_low[i].crl_pilots_on_2;
2716                         else if (state->srate <= 7000000)
2717                                 aclc = car_loop_qpsk_low[i].crl_pilots_on_5;
2718                         else if (state->srate <= 15000000)
2719                                 aclc = car_loop_qpsk_low[i].crl_pilots_on_10;
2720                         else if (state->srate <= 25000000)
2721                                 aclc = car_loop_qpsk_low[i].crl_pilots_on_20;
2722                         else
2723                                 aclc = car_loop_qpsk_low[i].crl_pilots_on_30;
2724                 } else {
2725                         if (state->srate <= 3000000)
2726                                 aclc = car_loop_qpsk_low[i].crl_pilots_off_2;
2727                         else if (state->srate <= 7000000)
2728                                 aclc = car_loop_qpsk_low[i].crl_pilots_off_5;
2729                         else if (state->srate <= 15000000)
2730                                 aclc = car_loop_qpsk_low[i].crl_pilots_off_10;
2731                         else if (state->srate <= 25000000)
2732                                 aclc = car_loop_qpsk_low[i].crl_pilots_off_20;
2733                         else
2734                                 aclc = car_loop_qpsk_low[i].crl_pilots_off_30;
2735                 }
2736
2737         } else if (modcod <= STV090x_8PSK_910) {
2738                 if (pilots) {
2739                         if (state->srate <= 3000000)
2740                                 aclc = car_loop[i].crl_pilots_on_2;
2741                         else if (state->srate <= 7000000)
2742                                 aclc = car_loop[i].crl_pilots_on_5;
2743                         else if (state->srate <= 15000000)
2744                                 aclc = car_loop[i].crl_pilots_on_10;
2745                         else if (state->srate <= 25000000)
2746                                 aclc = car_loop[i].crl_pilots_on_20;
2747                         else
2748                                 aclc = car_loop[i].crl_pilots_on_30;
2749                 } else {
2750                         if (state->srate <= 3000000)
2751                                 aclc = car_loop[i].crl_pilots_off_2;
2752                         else if (state->srate <= 7000000)
2753                                 aclc = car_loop[i].crl_pilots_off_5;
2754                         else if (state->srate <= 15000000)
2755                                 aclc = car_loop[i].crl_pilots_off_10;
2756                         else if (state->srate <= 25000000)
2757                                 aclc = car_loop[i].crl_pilots_off_20;
2758                         else
2759                                 aclc = car_loop[i].crl_pilots_off_30;
2760                 }
2761         } else { /* 16APSK and 32APSK */
2762                 if (state->srate <= 3000000)
2763                         aclc = car_loop_apsk_low[i].crl_pilots_on_2;
2764                 else if (state->srate <= 7000000)
2765                         aclc = car_loop_apsk_low[i].crl_pilots_on_5;
2766                 else if (state->srate <= 15000000)
2767                         aclc = car_loop_apsk_low[i].crl_pilots_on_10;
2768                 else if (state->srate <= 25000000)
2769                         aclc = car_loop_apsk_low[i].crl_pilots_on_20;
2770                 else
2771                         aclc = car_loop_apsk_low[i].crl_pilots_on_30;
2772         }
2773
2774         return aclc;
2775 }
2776
2777 static u8 stv090x_optimize_carloop_short(struct stv090x_state *state)
2778 {
2779         struct stv090x_short_frame_crloop *short_crl = NULL;
2780         s32 index = 0;
2781         u8 aclc = 0x0b;
2782
2783         switch (state->modulation) {
2784         case STV090x_QPSK:
2785         default:
2786                 index = 0;
2787                 break;
2788         case STV090x_8PSK:
2789                 index = 1;
2790                 break;
2791         case STV090x_16APSK:
2792                 index = 2;
2793                 break;
2794         case STV090x_32APSK:
2795                 index = 3;
2796                 break;
2797         }
2798
2799         if (state->internal->dev_ver >= 0x30) {
2800                 /* Cut 3.0 and up */
2801                 short_crl = stv090x_s2_short_crl_cut30;
2802         } else {
2803                 /* Cut 2.0 and up: we don't support cuts older than 2.0 */
2804                 short_crl = stv090x_s2_short_crl_cut20;
2805         }
2806
2807         if (state->srate <= 3000000)
2808                 aclc = short_crl[index].crl_2;
2809         else if (state->srate <= 7000000)
2810                 aclc = short_crl[index].crl_5;
2811         else if (state->srate <= 15000000)
2812                 aclc = short_crl[index].crl_10;
2813         else if (state->srate <= 25000000)
2814                 aclc = short_crl[index].crl_20;
2815         else
2816                 aclc = short_crl[index].crl_30;
2817
2818         return aclc;
2819 }
2820
2821 static int stv090x_optimize_track(struct stv090x_state *state)
2822 {
2823         struct dvb_frontend *fe = &state->frontend;
2824
2825         enum stv090x_rolloff rolloff;
2826         enum stv090x_modcod modcod;
2827
2828         s32 srate, pilots, aclc, f_1, f_0, i = 0, blind_tune = 0;
2829         u32 reg;
2830
2831         srate  = stv090x_get_srate(state, state->internal->mclk);
2832         srate += stv090x_get_tmgoffst(state, srate);
2833
2834         switch (state->delsys) {
2835         case STV090x_DVBS1:
2836         case STV090x_DSS:
2837                 if (state->search_mode == STV090x_SEARCH_AUTO) {
2838                         reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2839                         STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
2840                         STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
2841                         if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2842                                 goto err;
2843                 }
2844                 reg = STV090x_READ_DEMOD(state, DEMOD);
2845                 STV090x_SETFIELD_Px(reg, ROLLOFF_CONTROL_FIELD, state->rolloff);
2846                 STV090x_SETFIELD_Px(reg, MANUAL_SXROLLOFF_FIELD, 0x01);
2847                 if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
2848                         goto err;
2849
2850                 if (state->internal->dev_ver >= 0x30) {
2851                         if (stv090x_get_viterbi(state) < 0)
2852                                 goto err;
2853
2854                         if (state->fec == STV090x_PR12) {
2855                                 if (STV090x_WRITE_DEMOD(state, GAUSSR0, 0x98) < 0)
2856                                         goto err;
2857                                 if (STV090x_WRITE_DEMOD(state, CCIR0, 0x18) < 0)
2858                                         goto err;
2859                         } else {
2860                                 if (STV090x_WRITE_DEMOD(state, GAUSSR0, 0x18) < 0)
2861                                         goto err;
2862                                 if (STV090x_WRITE_DEMOD(state, CCIR0, 0x18) < 0)
2863                                         goto err;
2864                         }
2865                 }
2866
2867                 if (STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x75) < 0)
2868                         goto err;
2869                 break;
2870
2871         case STV090x_DVBS2:
2872                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2873                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 0);
2874                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
2875                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2876                         goto err;
2877                 if (STV090x_WRITE_DEMOD(state, ACLC, 0) < 0)
2878                         goto err;
2879                 if (STV090x_WRITE_DEMOD(state, BCLC, 0) < 0)
2880                         goto err;
2881                 if (state->frame_len == STV090x_LONG_FRAME) {
2882                         reg = STV090x_READ_DEMOD(state, DMDMODCOD);
2883                         modcod = STV090x_GETFIELD_Px(reg, DEMOD_MODCOD_FIELD);
2884                         pilots = STV090x_GETFIELD_Px(reg, DEMOD_TYPE_FIELD) & 0x01;
2885                         aclc = stv090x_optimize_carloop(state, modcod, pilots);
2886                         if (modcod <= STV090x_QPSK_910) {
2887                                 STV090x_WRITE_DEMOD(state, ACLC2S2Q, aclc);
2888                         } else if (modcod <= STV090x_8PSK_910) {
2889                                 if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2890                                         goto err;
2891                                 if (STV090x_WRITE_DEMOD(state, ACLC2S28, aclc) < 0)
2892                                         goto err;
2893                         }
2894                         if ((state->demod_mode == STV090x_SINGLE) && (modcod > STV090x_8PSK_910)) {
2895                                 if (modcod <= STV090x_16APSK_910) {
2896                                         if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2897                                                 goto err;
2898                                         if (STV090x_WRITE_DEMOD(state, ACLC2S216A, aclc) < 0)
2899                                                 goto err;
2900                                 } else {
2901                                         if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2902                                                 goto err;
2903                                         if (STV090x_WRITE_DEMOD(state, ACLC2S232A, aclc) < 0)
2904                                                 goto err;
2905                                 }
2906                         }
2907                 } else {
2908                         /*Carrier loop setting for short frame*/
2909                         aclc = stv090x_optimize_carloop_short(state);
2910                         if (state->modulation == STV090x_QPSK) {
2911                                 if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, aclc) < 0)
2912                                         goto err;
2913                         } else if (state->modulation == STV090x_8PSK) {
2914                                 if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2915                                         goto err;
2916                                 if (STV090x_WRITE_DEMOD(state, ACLC2S28, aclc) < 0)
2917                                         goto err;
2918                         } else if (state->modulation == STV090x_16APSK) {
2919                                 if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2920                                         goto err;
2921                                 if (STV090x_WRITE_DEMOD(state, ACLC2S216A, aclc) < 0)
2922                                         goto err;
2923                         } else if (state->modulation == STV090x_32APSK)  {
2924                                 if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2925                                         goto err;
2926                                 if (STV090x_WRITE_DEMOD(state, ACLC2S232A, aclc) < 0)
2927                                         goto err;
2928                         }
2929                 }
2930
2931                 STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x67); /* PER */
2932                 break;
2933
2934         case STV090x_UNKNOWN:
2935         default:
2936                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2937                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
2938                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
2939                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2940                         goto err;
2941                 break;
2942         }
2943
2944         f_1 = STV090x_READ_DEMOD(state, CFR2);
2945         f_0 = STV090x_READ_DEMOD(state, CFR1);
2946         reg = STV090x_READ_DEMOD(state, TMGOBS);
2947         rolloff = STV090x_GETFIELD_Px(reg, ROLLOFF_STATUS_FIELD);
2948
2949         if (state->algo == STV090x_BLIND_SEARCH) {
2950                 STV090x_WRITE_DEMOD(state, SFRSTEP, 0x00);
2951                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2952                 STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 0x00);
2953                 STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0x00);
2954                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2955                         goto err;
2956                 if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc1) < 0)
2957                         goto err;
2958
2959                 if (stv090x_set_srate(state, srate) < 0)
2960                         goto err;
2961                 blind_tune = 1;
2962
2963                 if (stv090x_dvbs_track_crl(state) < 0)
2964                         goto err;
2965         }
2966
2967         if (state->internal->dev_ver >= 0x20) {
2968                 if ((state->search_mode == STV090x_SEARCH_DVBS1)        ||
2969                     (state->search_mode == STV090x_SEARCH_DSS)          ||
2970                     (state->search_mode == STV090x_SEARCH_AUTO)) {
2971
2972                         if (STV090x_WRITE_DEMOD(state, VAVSRVIT, 0x0a) < 0)
2973                                 goto err;
2974                         if (STV090x_WRITE_DEMOD(state, VITSCALE, 0x00) < 0)
2975                                 goto err;
2976                 }
2977         }
2978
2979         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
2980                 goto err;
2981
2982         /* AUTO tracking MODE */
2983         if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x80) < 0)
2984                 goto err;
2985         /* AUTO tracking MODE */
2986         if (STV090x_WRITE_DEMOD(state, SFRLOW1, 0x80) < 0)
2987                 goto err;
2988
2989         if ((state->internal->dev_ver >= 0x20) || (blind_tune == 1) ||
2990             (state->srate < 10000000)) {
2991                 /* update initial carrier freq with the found freq offset */
2992                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, f_1) < 0)
2993                         goto err;
2994                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, f_0) < 0)
2995                         goto err;
2996                 state->tuner_bw = stv090x_car_width(srate, state->rolloff) + 10000000;
2997
2998                 if ((state->internal->dev_ver >= 0x20) || (blind_tune == 1)) {
2999
3000                         if (state->algo != STV090x_WARM_SEARCH) {
3001
3002                                 if (stv090x_i2c_gate_ctrl(fe, 1) < 0)
3003                                         goto err;
3004
3005                                 if (state->config->tuner_set_bandwidth) {
3006                                         if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
3007                                                 goto err_gateoff;
3008                                 }
3009
3010                                 if (stv090x_i2c_gate_ctrl(fe, 0) < 0)
3011                                         goto err;
3012
3013                         }
3014                 }
3015                 if ((state->algo == STV090x_BLIND_SEARCH) || (state->srate < 10000000))
3016                         msleep(50); /* blind search: wait 50ms for SR stabilization */
3017                 else
3018                         msleep(5);
3019
3020                 stv090x_get_lock_tmg(state);
3021
3022                 if (!(stv090x_get_dmdlock(state, (state->DemodTimeout / 2)))) {
3023                         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
3024                                 goto err;
3025                         if (STV090x_WRITE_DEMOD(state, CFRINIT1, f_1) < 0)
3026                                 goto err;
3027                         if (STV090x_WRITE_DEMOD(state, CFRINIT0, f_0) < 0)
3028                                 goto err;
3029                         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
3030                                 goto err;
3031
3032                         i = 0;
3033
3034                         while ((!(stv090x_get_dmdlock(state, (state->DemodTimeout / 2)))) && (i <= 2)) {
3035
3036                                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
3037                                         goto err;
3038                                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, f_1) < 0)
3039                                         goto err;
3040                                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, f_0) < 0)
3041                                         goto err;
3042                                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
3043                                         goto err;
3044                                 i++;
3045                         }
3046                 }
3047
3048         }
3049
3050         if (state->internal->dev_ver >= 0x20) {
3051                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x49) < 0)
3052                         goto err;
3053         }
3054
3055         if ((state->delsys == STV090x_DVBS1) || (state->delsys == STV090x_DSS))
3056                 stv090x_set_vit_thtracq(state);
3057
3058         return 0;
3059
3060 err_gateoff:
3061         stv090x_i2c_gate_ctrl(fe, 0);
3062 err:
3063         dprintk(FE_ERROR, 1, "I/O error");
3064         return -1;
3065 }
3066
3067 static int stv090x_get_feclock(struct stv090x_state *state, s32 timeout)
3068 {
3069         s32 timer = 0, lock = 0, stat;
3070         u32 reg;
3071
3072         while ((timer < timeout) && (!lock)) {
3073                 reg = STV090x_READ_DEMOD(state, DMDSTATE);
3074                 stat = STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD);
3075
3076                 switch (stat) {
3077                 case 0: /* searching */
3078                 case 1: /* first PLH detected */
3079                 default:
3080                         lock = 0;
3081                         break;
3082
3083                 case 2: /* DVB-S2 mode */
3084                         reg = STV090x_READ_DEMOD(state, PDELSTATUS1);
3085                         lock = STV090x_GETFIELD_Px(reg, PKTDELIN_LOCK_FIELD);
3086                         break;
3087
3088                 case 3: /* DVB-S1/legacy mode */
3089                         reg = STV090x_READ_DEMOD(state, VSTATUSVIT);
3090                         lock = STV090x_GETFIELD_Px(reg, LOCKEDVIT_FIELD);
3091                         break;
3092                 }
3093                 if (!lock) {
3094                         msleep(10);
3095                         timer += 10;
3096                 }
3097         }
3098         return lock;
3099 }
3100
3101 static int stv090x_get_lock(struct stv090x_state *state, s32 timeout_dmd, s32 timeout_fec)
3102 {
3103         u32 reg;
3104         s32 timer = 0;
3105         int lock;
3106
3107         lock = stv090x_get_dmdlock(state, timeout_dmd);
3108         if (lock)
3109                 lock = stv090x_get_feclock(state, timeout_fec);
3110
3111         if (lock) {
3112                 lock = 0;
3113
3114                 while ((timer < timeout_fec) && (!lock)) {
3115                         reg = STV090x_READ_DEMOD(state, TSSTATUS);
3116                         lock = STV090x_GETFIELD_Px(reg, TSFIFO_LINEOK_FIELD);
3117                         msleep(1);
3118                         timer++;
3119                 }
3120         }
3121
3122         return lock;
3123 }
3124
3125 static int stv090x_set_s2rolloff(struct stv090x_state *state)
3126 {
3127         u32 reg;
3128
3129         if (state->internal->dev_ver <= 0x20) {
3130                 /* rolloff to auto mode if DVBS2 */
3131                 reg = STV090x_READ_DEMOD(state, DEMOD);
3132                 STV090x_SETFIELD_Px(reg, MANUAL_SXROLLOFF_FIELD, 0x00);
3133                 if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
3134                         goto err;
3135         } else {
3136                 /* DVB-S2 rolloff to auto mode if DVBS2 */
3137                 reg = STV090x_READ_DEMOD(state, DEMOD);
3138                 STV090x_SETFIELD_Px(reg, MANUAL_S2ROLLOFF_FIELD, 0x00);
3139                 if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
3140                         goto err;
3141         }
3142         return 0;
3143 err:
3144         dprintk(FE_ERROR, 1, "I/O error");
3145         return -1;
3146 }
3147
3148
3149 static enum stv090x_signal_state stv090x_algo(struct stv090x_state *state)
3150 {
3151         struct dvb_frontend *fe = &state->frontend;
3152         enum stv090x_signal_state signal_state = STV090x_NOCARRIER;
3153         u32 reg;
3154         s32 agc1_power, power_iq = 0, i;
3155         int lock = 0, low_sr = 0, no_signal = 0;
3156
3157         reg = STV090x_READ_DEMOD(state, TSCFGH);
3158         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 1); /* Stop path 1 stream merger */
3159         if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3160                 goto err;
3161
3162         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x5c) < 0) /* Demod stop */
3163                 goto err;
3164
3165         if (state->internal->dev_ver >= 0x20) {
3166                 if (state->srate > 5000000) {
3167                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x9e) < 0)
3168                                 goto err;
3169                 } else {
3170                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x82) < 0)
3171                                 goto err;
3172                 }
3173         }
3174
3175         stv090x_get_lock_tmg(state);
3176
3177         if (state->algo == STV090x_BLIND_SEARCH) {
3178                 state->tuner_bw = 2 * 36000000; /* wide bw for unknown srate */
3179                 if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc0) < 0) /* wider srate scan */
3180                         goto err;
3181                 if (STV090x_WRITE_DEMOD(state, CORRELMANT, 0x70) < 0)
3182                         goto err;
3183                 if (stv090x_set_srate(state, 1000000) < 0) /* inital srate = 1Msps */
3184                         goto err;
3185         } else {
3186                 /* known srate */
3187                 if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x20) < 0)
3188                         goto err;
3189                 if (STV090x_WRITE_DEMOD(state, TMGCFG, 0xd2) < 0)
3190                         goto err;
3191
3192                 if (state->srate < 2000000) {
3193                         /* SR < 2MSPS */
3194                         if (STV090x_WRITE_DEMOD(state, CORRELMANT, 0x63) < 0)
3195                                 goto err;
3196                 } else {
3197                         /* SR >= 2Msps */
3198                         if (STV090x_WRITE_DEMOD(state, CORRELMANT, 0x70) < 0)
3199                                 goto err;
3200                 }
3201
3202                 if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
3203                         goto err;
3204
3205                 if (state->internal->dev_ver >= 0x20) {
3206                         if (STV090x_WRITE_DEMOD(state, KREFTMG, 0x5a) < 0)
3207                                 goto err;
3208                         if (state->algo == STV090x_COLD_SEARCH)
3209                                 state->tuner_bw = (15 * (stv090x_car_width(state->srate, state->rolloff) + 10000000)) / 10;
3210                         else if (state->algo == STV090x_WARM_SEARCH)
3211                                 state->tuner_bw = stv090x_car_width(state->srate, state->rolloff) + 10000000;
3212                 }
3213
3214                 /* if cold start or warm  (Symbolrate is known)
3215                  * use a Narrow symbol rate scan range
3216                  */
3217                 if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc1) < 0) /* narrow srate scan */
3218                         goto err;
3219
3220                 if (stv090x_set_srate(state, state->srate) < 0)
3221                         goto err;
3222
3223                 if (stv090x_set_max_srate(state, state->internal->mclk,
3224                                           state->srate) < 0)
3225                         goto err;
3226                 if (stv090x_set_min_srate(state, state->internal->mclk,
3227                                           state->srate) < 0)
3228                         goto err;
3229
3230                 if (state->srate >= 10000000)
3231                         low_sr = 0;
3232                 else
3233                         low_sr = 1;
3234         }
3235
3236         /* Setup tuner */
3237         if (stv090x_i2c_gate_ctrl(fe, 1) < 0)
3238                 goto err;
3239
3240         if (state->config->tuner_set_bbgain) {
3241                 reg = state->config->tuner_bbgain;
3242                 if (reg == 0)
3243                         reg = 10; /* default: 10dB */
3244                 if (state->config->tuner_set_bbgain(fe, reg) < 0)
3245                         goto err_gateoff;
3246         }
3247
3248         if (state->config->tuner_set_frequency) {
3249                 if (state->config->tuner_set_frequency(fe, state->frequency) < 0)
3250                         goto err_gateoff;
3251         }
3252
3253         if (state->config->tuner_set_bandwidth) {
3254                 if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
3255                         goto err_gateoff;
3256         }
3257
3258         if (stv090x_i2c_gate_ctrl(fe, 0) < 0)
3259                 goto err;
3260
3261         msleep(50);
3262
3263         if (state->config->tuner_get_status) {
3264                 if (stv090x_i2c_gate_ctrl(fe, 1) < 0)
3265                         goto err;
3266                 if (state->config->tuner_get_status(fe, &reg) < 0)
3267                         goto err_gateoff;
3268                 if (stv090x_i2c_gate_ctrl(fe, 0) < 0)
3269                         goto err;
3270
3271                 if (reg)
3272                         dprintk(FE_DEBUG, 1, "Tuner phase locked");
3273                 else {
3274                         dprintk(FE_DEBUG, 1, "Tuner unlocked");
3275                         return STV090x_NOCARRIER;
3276                 }
3277         }
3278
3279         msleep(10);
3280         agc1_power = MAKEWORD16(STV090x_READ_DEMOD(state, AGCIQIN1),
3281                                 STV090x_READ_DEMOD(state, AGCIQIN0));
3282
3283         if (agc1_power == 0) {
3284                 /* If AGC1 integrator value is 0
3285                  * then read POWERI, POWERQ
3286                  */
3287                 for (i = 0; i < 5; i++) {
3288                         power_iq += (STV090x_READ_DEMOD(state, POWERI) +
3289                                      STV090x_READ_DEMOD(state, POWERQ)) >> 1;
3290                 }
3291                 power_iq /= 5;
3292         }
3293
3294         if ((agc1_power == 0) && (power_iq < STV090x_IQPOWER_THRESHOLD)) {
3295                 dprintk(FE_ERROR, 1, "No Signal: POWER_IQ=0x%02x", power_iq);
3296                 lock = 0;
3297                 signal_state = STV090x_NOAGC1;
3298         } else {
3299                 reg = STV090x_READ_DEMOD(state, DEMOD);
3300                 STV090x_SETFIELD_Px(reg, SPECINV_CONTROL_FIELD, state->inversion);
3301
3302                 if (state->internal->dev_ver <= 0x20) {
3303                         /* rolloff to auto mode if DVBS2 */
3304                         STV090x_SETFIELD_Px(reg, MANUAL_SXROLLOFF_FIELD, 1);
3305                 } else {
3306                         /* DVB-S2 rolloff to auto mode if DVBS2 */
3307                         STV090x_SETFIELD_Px(reg, MANUAL_S2ROLLOFF_FIELD, 1);
3308                 }
3309                 if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
3310                         goto err;
3311
3312                 if (stv090x_delivery_search(state) < 0)
3313                         goto err;
3314
3315                 if (state->algo != STV090x_BLIND_SEARCH) {
3316                         if (stv090x_start_search(state) < 0)
3317                                 goto err;
3318                 }
3319         }
3320
3321         if (signal_state == STV090x_NOAGC1)
3322                 return signal_state;
3323
3324         if (state->algo == STV090x_BLIND_SEARCH)
3325                 lock = stv090x_blind_search(state);
3326
3327         else if (state->algo == STV090x_COLD_SEARCH)
3328                 lock = stv090x_get_coldlock(state, state->DemodTimeout);
3329
3330         else if (state->algo == STV090x_WARM_SEARCH)
3331                 lock = stv090x_get_dmdlock(state, state->DemodTimeout);
3332
3333         if ((!lock) && (state->algo == STV090x_COLD_SEARCH)) {
3334                 if (!low_sr) {
3335                         if (stv090x_chk_tmg(state))
3336                                 lock = stv090x_sw_algo(state);
3337                 }
3338         }
3339
3340         if (lock)
3341                 signal_state = stv090x_get_sig_params(state);
3342
3343         if ((lock) && (signal_state == STV090x_RANGEOK)) { /* signal within Range */
3344                 stv090x_optimize_track(state);
3345
3346                 if (state->internal->dev_ver >= 0x20) {
3347                         /* >= Cut 2.0 :release TS reset after
3348                          * demod lock and optimized Tracking
3349                          */
3350                         reg = STV090x_READ_DEMOD(state, TSCFGH);
3351                         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0); /* release merger reset */
3352                         if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3353                                 goto err;
3354
3355                         msleep(3);
3356
3357                         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 1); /* merger reset */
3358                         if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3359                                 goto err;
3360
3361                         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0); /* release merger reset */
3362                         if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3363                                 goto err;
3364                 }
3365
3366                 lock = stv090x_get_lock(state, state->FecTimeout,
3367                                 state->FecTimeout);
3368                 if (lock) {
3369                         if (state->delsys == STV090x_DVBS2) {
3370                                 stv090x_set_s2rolloff(state);
3371
3372                                 reg = STV090x_READ_DEMOD(state, PDELCTRL2);
3373                                 STV090x_SETFIELD_Px(reg, RESET_UPKO_COUNT, 1);
3374                                 if (STV090x_WRITE_DEMOD(state, PDELCTRL2, reg) < 0)
3375                                         goto err;
3376                                 /* Reset DVBS2 packet delinator error counter */
3377                                 reg = STV090x_READ_DEMOD(state, PDELCTRL2);
3378                                 STV090x_SETFIELD_Px(reg, RESET_UPKO_COUNT, 0);
3379                                 if (STV090x_WRITE_DEMOD(state, PDELCTRL2, reg) < 0)
3380                                         goto err;
3381
3382                                 if (STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x67) < 0) /* PER */
3383                                         goto err;
3384                         } else {
3385                                 if (STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x75) < 0)
3386                                         goto err;
3387                         }
3388                         /* Reset the Total packet counter */
3389                         if (STV090x_WRITE_DEMOD(state, FBERCPT4, 0x00) < 0)
3390                                 goto err;
3391                         /* Reset the packet Error counter2 */
3392                         if (STV090x_WRITE_DEMOD(state, ERRCTRL2, 0xc1) < 0)
3393                                 goto err;
3394                 } else {
3395                         signal_state = STV090x_NODATA;
3396                         no_signal = stv090x_chk_signal(state);
3397                 }
3398         }
3399         return signal_state;
3400
3401 err_gateoff:
3402         stv090x_i2c_gate_ctrl(fe, 0);
3403 err:
3404         dprintk(FE_ERROR, 1, "I/O error");
3405         return -1;
3406 }
3407
3408 static enum dvbfe_search stv090x_search(struct dvb_frontend *fe, struct dvb_frontend_parameters *p)
3409 {
3410         struct stv090x_state *state = fe->demodulator_priv;
3411         struct dtv_frontend_properties *props = &fe->dtv_property_cache;
3412
3413         if (p->frequency == 0)
3414                 return DVBFE_ALGO_SEARCH_INVALID;
3415
3416         state->delsys = props->delivery_system;
3417         state->frequency = p->frequency;
3418         state->srate = p->u.qpsk.symbol_rate;
3419         state->search_mode = STV090x_SEARCH_AUTO;
3420         state->algo = STV090x_COLD_SEARCH;
3421         state->fec = STV090x_PRERR;
3422         if (state->srate > 10000000) {
3423                 dprintk(FE_DEBUG, 1, "Search range: 10 MHz");
3424                 state->search_range = 10000000;
3425         } else {
3426                 dprintk(FE_DEBUG, 1, "Search range: 5 MHz");
3427                 state->search_range = 5000000;
3428         }
3429
3430         if (stv090x_algo(state) == STV090x_RANGEOK) {
3431                 dprintk(FE_DEBUG, 1, "Search success!");
3432                 return DVBFE_ALGO_SEARCH_SUCCESS;
3433         } else {
3434                 dprintk(FE_DEBUG, 1, "Search failed!");
3435                 return DVBFE_ALGO_SEARCH_FAILED;
3436         }
3437
3438         return DVBFE_ALGO_SEARCH_ERROR;
3439 }
3440
3441 static int stv090x_read_status(struct dvb_frontend *fe, enum fe_status *status)
3442 {
3443         struct stv090x_state *state = fe->demodulator_priv;
3444         u32 reg;
3445         u8 search_state;
3446
3447         reg = STV090x_READ_DEMOD(state, DMDSTATE);
3448         search_state = STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD);
3449
3450         switch (search_state) {
3451         case 0: /* searching */
3452         case 1: /* first PLH detected */
3453         default:
3454                 dprintk(FE_DEBUG, 1, "Status: Unlocked (Searching ..)");
3455                 *status = 0;
3456                 break;
3457
3458         case 2: /* DVB-S2 mode */
3459                 dprintk(FE_DEBUG, 1, "Delivery system: DVB-S2");
3460                 reg = STV090x_READ_DEMOD(state, DSTATUS);
3461                 if (STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD)) {
3462                         reg = STV090x_READ_DEMOD(state, PDELSTATUS1);
3463                         if (STV090x_GETFIELD_Px(reg, PKTDELIN_LOCK_FIELD)) {
3464                                 reg = STV090x_READ_DEMOD(state, TSSTATUS);
3465                                 if (STV090x_GETFIELD_Px(reg, TSFIFO_LINEOK_FIELD)) {
3466                                         *status = FE_HAS_SIGNAL |
3467                                                   FE_HAS_CARRIER |
3468                                                   FE_HAS_VITERBI |
3469                                                   FE_HAS_SYNC |
3470                                                   FE_HAS_LOCK;
3471                                 }
3472                         }
3473                 }
3474                 break;
3475
3476         case 3: /* DVB-S1/legacy mode */
3477                 dprintk(FE_DEBUG, 1, "Delivery system: DVB-S");
3478                 reg = STV090x_READ_DEMOD(state, DSTATUS);
3479                 if (STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD)) {
3480                         reg = STV090x_READ_DEMOD(state, VSTATUSVIT);
3481                         if (STV090x_GETFIELD_Px(reg, LOCKEDVIT_FIELD)) {
3482                                 reg = STV090x_READ_DEMOD(state, TSSTATUS);
3483                                 if (STV090x_GETFIELD_Px(reg, TSFIFO_LINEOK_FIELD)) {
3484                                         *status = FE_HAS_SIGNAL |
3485                                                   FE_HAS_CARRIER |
3486                                                   FE_HAS_VITERBI |
3487                                                   FE_HAS_SYNC |
3488                                                   FE_HAS_LOCK;
3489                                 }
3490                         }
3491                 }
3492                 break;
3493         }
3494
3495         return 0;
3496 }
3497
3498 static int stv090x_read_per(struct dvb_frontend *fe, u32 *per)
3499 {
3500         struct stv090x_state *state = fe->demodulator_priv;
3501
3502         s32 count_4, count_3, count_2, count_1, count_0, count;
3503         u32 reg, h, m, l;
3504         enum fe_status status;
3505
3506         stv090x_read_status(fe, &status);
3507         if (!(status & FE_HAS_LOCK)) {
3508                 *per = 1 << 23; /* Max PER */
3509         } else {
3510                 /* Counter 2 */
3511                 reg = STV090x_READ_DEMOD(state, ERRCNT22);
3512                 h = STV090x_GETFIELD_Px(reg, ERR_CNT2_FIELD);
3513
3514                 reg = STV090x_READ_DEMOD(state, ERRCNT21);
3515                 m = STV090x_GETFIELD_Px(reg, ERR_CNT21_FIELD);
3516
3517                 reg = STV090x_READ_DEMOD(state, ERRCNT20);
3518                 l = STV090x_GETFIELD_Px(reg, ERR_CNT20_FIELD);
3519
3520                 *per = ((h << 16) | (m << 8) | l);
3521
3522                 count_4 = STV090x_READ_DEMOD(state, FBERCPT4);
3523                 count_3 = STV090x_READ_DEMOD(state, FBERCPT3);
3524                 count_2 = STV090x_READ_DEMOD(state, FBERCPT2);
3525                 count_1 = STV090x_READ_DEMOD(state, FBERCPT1);
3526                 count_0 = STV090x_READ_DEMOD(state, FBERCPT0);
3527
3528                 if ((!count_4) && (!count_3)) {
3529                         count  = (count_2 & 0xff) << 16;
3530                         count |= (count_1 & 0xff) <<  8;
3531                         count |=  count_0 & 0xff;
3532                 } else {
3533                         count = 1 << 24;
3534                 }
3535                 if (count == 0)
3536                         *per = 1;
3537         }
3538         if (STV090x_WRITE_DEMOD(state, FBERCPT4, 0) < 0)
3539                 goto err;
3540         if (STV090x_WRITE_DEMOD(state, ERRCTRL2, 0xc1) < 0)
3541                 goto err;
3542
3543         return 0;
3544 err:
3545         dprintk(FE_ERROR, 1, "I/O error");
3546         return -1;
3547 }
3548
3549 static int stv090x_table_lookup(const struct stv090x_tab *tab, int max, int val)
3550 {
3551         int res = 0;
3552         int min = 0, med;
3553
3554         if ((val >= tab[min].read && val < tab[max].read) ||
3555             (val >= tab[max].read && val < tab[min].read)) {
3556                 while ((max - min) > 1) {
3557                         med = (max + min) / 2;
3558                         if ((val >= tab[min].read && val < tab[med].read) ||
3559                             (val >= tab[med].read && val < tab[min].read))
3560                                 max = med;
3561                         else
3562                                 min = med;
3563                 }
3564                 res = ((val - tab[min].read) *
3565                        (tab[max].real - tab[min].real) /
3566                        (tab[max].read - tab[min].read)) +
3567                         tab[min].real;
3568         } else {
3569                 if (tab[min].read < tab[max].read) {
3570                         if (val < tab[min].read)
3571                                 res = tab[min].real;
3572                         else if (val >= tab[max].read)
3573                                 res = tab[max].real;
3574                 } else {
3575                         if (val >= tab[min].read)
3576                                 res = tab[min].real;
3577                         else if (val < tab[max].read)
3578                                 res = tab[max].real;
3579                 }
3580         }
3581
3582         return res;
3583 }
3584
3585 static int stv090x_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
3586 {
3587         struct stv090x_state *state = fe->demodulator_priv;
3588         u32 reg;
3589         s32 agc_0, agc_1, agc;
3590         s32 str;
3591
3592         reg = STV090x_READ_DEMOD(state, AGCIQIN1);
3593         agc_1 = STV090x_GETFIELD_Px(reg, AGCIQ_VALUE_FIELD);
3594         reg = STV090x_READ_DEMOD(state, AGCIQIN0);
3595         agc_0 = STV090x_GETFIELD_Px(reg, AGCIQ_VALUE_FIELD);
3596         agc = MAKEWORD16(agc_1, agc_0);
3597
3598         str = stv090x_table_lookup(stv090x_rf_tab,
3599                 ARRAY_SIZE(stv090x_rf_tab) - 1, agc);
3600         if (agc > stv090x_rf_tab[0].read)
3601                 str = 0;
3602         else if (agc < stv090x_rf_tab[ARRAY_SIZE(stv090x_rf_tab) - 1].read)
3603                 str = -100;
3604         *strength = (str + 100) * 0xFFFF / 100;
3605
3606         return 0;
3607 }
3608
3609 static int stv090x_read_cnr(struct dvb_frontend *fe, u16 *cnr)
3610 {
3611         struct stv090x_state *state = fe->demodulator_priv;
3612         u32 reg_0, reg_1, reg, i;
3613         s32 val_0, val_1, val = 0;
3614         u8 lock_f;
3615         s32 div;
3616         u32 last;
3617
3618         switch (state->delsys) {
3619         case STV090x_DVBS2:
3620                 reg = STV090x_READ_DEMOD(state, DSTATUS);
3621                 lock_f = STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD);
3622                 if (lock_f) {
3623                         msleep(5);
3624                         for (i = 0; i < 16; i++) {
3625                                 reg_1 = STV090x_READ_DEMOD(state, NNOSPLHT1);
3626                                 val_1 = STV090x_GETFIELD_Px(reg_1, NOSPLHT_NORMED_FIELD);
3627                                 reg_0 = STV090x_READ_DEMOD(state, NNOSPLHT0);
3628                                 val_0 = STV090x_GETFIELD_Px(reg_0, NOSPLHT_NORMED_FIELD);
3629                                 val  += MAKEWORD16(val_1, val_0);
3630                                 msleep(1);
3631                         }
3632                         val /= 16;
3633                         last = ARRAY_SIZE(stv090x_s2cn_tab) - 1;
3634                         div = stv090x_s2cn_tab[0].read -
3635                               stv090x_s2cn_tab[last].read;
3636                         *cnr = 0xFFFF - ((val * 0xFFFF) / div);
3637                 }
3638                 break;
3639
3640         case STV090x_DVBS1:
3641         case STV090x_DSS:
3642                 reg = STV090x_READ_DEMOD(state, DSTATUS);
3643                 lock_f = STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD);
3644                 if (lock_f) {
3645                         msleep(5);
3646                         for (i = 0; i < 16; i++) {
3647                                 reg_1 = STV090x_READ_DEMOD(state, NOSDATAT1);
3648                                 val_1 = STV090x_GETFIELD_Px(reg_1, NOSDATAT_UNNORMED_FIELD);
3649                                 reg_0 = STV090x_READ_DEMOD(state, NOSDATAT0);
3650                                 val_0 = STV090x_GETFIELD_Px(reg_0, NOSDATAT_UNNORMED_FIELD);
3651                                 val  += MAKEWORD16(val_1, val_0);
3652                                 msleep(1);
3653                         }
3654                         val /= 16;
3655                         last = ARRAY_SIZE(stv090x_s1cn_tab) - 1;
3656                         div = stv090x_s1cn_tab[0].read -
3657                               stv090x_s1cn_tab[last].read;
3658                         *cnr = 0xFFFF - ((val * 0xFFFF) / div);
3659                 }
3660                 break;
3661         default:
3662                 break;
3663         }
3664
3665         return 0;
3666 }
3667
3668 static int stv090x_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone)
3669 {
3670         struct stv090x_state *state = fe->demodulator_priv;
3671         u32 reg;
3672
3673         reg = STV090x_READ_DEMOD(state, DISTXCTL);
3674         switch (tone) {
3675         case SEC_TONE_ON:
3676                 STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD, 0);
3677                 STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3678                 if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3679                         goto err;
3680                 STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 0);
3681                 if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3682                         goto err;
3683                 break;
3684
3685         case SEC_TONE_OFF:
3686                 STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD, 0);
3687                 STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3688                 if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3689                         goto err;
3690                 break;
3691         default:
3692                 return -EINVAL;
3693         }
3694
3695         return 0;
3696 err:
3697         dprintk(FE_ERROR, 1, "I/O error");
3698         return -1;
3699 }
3700
3701
3702 static enum dvbfe_algo stv090x_frontend_algo(struct dvb_frontend *fe)
3703 {
3704         return DVBFE_ALGO_CUSTOM;
3705 }
3706
3707 static int stv090x_send_diseqc_msg(struct dvb_frontend *fe, struct dvb_diseqc_master_cmd *cmd)
3708 {
3709         struct stv090x_state *state = fe->demodulator_priv;
3710         u32 reg, idle = 0, fifo_full = 1;
3711         int i;
3712
3713         reg = STV090x_READ_DEMOD(state, DISTXCTL);
3714
3715         STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD,
3716                 (state->config->diseqc_envelope_mode) ? 4 : 2);
3717         STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3718         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3719                 goto err;
3720         STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 0);
3721         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3722                 goto err;
3723
3724         STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 1);
3725         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3726                 goto err;
3727
3728         for (i = 0; i < cmd->msg_len; i++) {
3729
3730                 while (fifo_full) {
3731                         reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3732                         fifo_full = STV090x_GETFIELD_Px(reg, FIFO_FULL_FIELD);
3733                 }
3734
3735                 if (STV090x_WRITE_DEMOD(state, DISTXDATA, cmd->msg[i]) < 0)
3736                         goto err;
3737         }
3738         reg = STV090x_READ_DEMOD(state, DISTXCTL);
3739         STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 0);
3740         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3741                 goto err;
3742
3743         i = 0;
3744
3745         while ((!idle) && (i < 10)) {
3746                 reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3747                 idle = STV090x_GETFIELD_Px(reg, TX_IDLE_FIELD);
3748                 msleep(10);
3749                 i++;
3750         }
3751
3752         return 0;
3753 err:
3754         dprintk(FE_ERROR, 1, "I/O error");
3755         return -1;
3756 }
3757
3758 static int stv090x_send_diseqc_burst(struct dvb_frontend *fe, fe_sec_mini_cmd_t burst)
3759 {
3760         struct stv090x_state *state = fe->demodulator_priv;
3761         u32 reg, idle = 0, fifo_full = 1;
3762         u8 mode, value;
3763         int i;
3764
3765         reg = STV090x_READ_DEMOD(state, DISTXCTL);
3766
3767         if (burst == SEC_MINI_A) {
3768                 mode = (state->config->diseqc_envelope_mode) ? 5 : 3;
3769                 value = 0x00;
3770         } else {
3771                 mode = (state->config->diseqc_envelope_mode) ? 4 : 2;
3772                 value = 0xFF;
3773         }
3774
3775         STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD, mode);
3776         STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3777         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3778                 goto err;
3779         STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 0);
3780         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3781                 goto err;
3782
3783         STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 1);
3784         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3785                 goto err;
3786
3787         while (fifo_full) {
3788                 reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3789                 fifo_full = STV090x_GETFIELD_Px(reg, FIFO_FULL_FIELD);
3790         }
3791
3792         if (STV090x_WRITE_DEMOD(state, DISTXDATA, value) < 0)
3793                 goto err;
3794
3795         reg = STV090x_READ_DEMOD(state, DISTXCTL);
3796         STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 0);
3797         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3798                 goto err;
3799
3800         i = 0;
3801
3802         while ((!idle) && (i < 10)) {
3803                 reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3804                 idle = STV090x_GETFIELD_Px(reg, TX_IDLE_FIELD);
3805                 msleep(10);
3806                 i++;
3807         }
3808
3809         return 0;
3810 err:
3811         dprintk(FE_ERROR, 1, "I/O error");
3812         return -1;
3813 }
3814
3815 static int stv090x_recv_slave_reply(struct dvb_frontend *fe, struct dvb_diseqc_slave_reply *reply)
3816 {
3817         struct stv090x_state *state = fe->demodulator_priv;
3818         u32 reg = 0, i = 0, rx_end = 0;
3819
3820         while ((rx_end != 1) && (i < 10)) {
3821                 msleep(10);
3822                 i++;
3823                 reg = STV090x_READ_DEMOD(state, DISRX_ST0);
3824                 rx_end = STV090x_GETFIELD_Px(reg, RX_END_FIELD);
3825         }
3826
3827         if (rx_end) {
3828                 reply->msg_len = STV090x_GETFIELD_Px(reg, FIFO_BYTENBR_FIELD);
3829                 for (i = 0; i < reply->msg_len; i++)
3830                         reply->msg[i] = STV090x_READ_DEMOD(state, DISRXDATA);
3831         }
3832
3833         return 0;
3834 }
3835
3836 static int stv090x_sleep(struct dvb_frontend *fe)
3837 {
3838         struct stv090x_state *state = fe->demodulator_priv;
3839         u32 reg;
3840
3841         dprintk(FE_DEBUG, 1, "Set %s to sleep",
3842                 state->device == STV0900 ? "STV0900" : "STV0903");
3843
3844         reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
3845         STV090x_SETFIELD(reg, STANDBY_FIELD, 0x01);
3846         if (stv090x_write_reg(state, STV090x_SYNTCTRL, reg) < 0)
3847                 goto err;
3848
3849         reg = stv090x_read_reg(state, STV090x_TSTTNR1);
3850         STV090x_SETFIELD(reg, ADC1_PON_FIELD, 0);
3851         if (stv090x_write_reg(state, STV090x_TSTTNR1, reg) < 0)
3852                 goto err;
3853
3854         return 0;
3855 err:
3856         dprintk(FE_ERROR, 1, "I/O error");
3857         return -1;
3858 }
3859
3860 static int stv090x_wakeup(struct dvb_frontend *fe)
3861 {
3862         struct stv090x_state *state = fe->demodulator_priv;
3863         u32 reg;
3864
3865         dprintk(FE_DEBUG, 1, "Wake %s from standby",
3866                 state->device == STV0900 ? "STV0900" : "STV0903");
3867
3868         reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
3869         STV090x_SETFIELD(reg, STANDBY_FIELD, 0x00);
3870         if (stv090x_write_reg(state, STV090x_SYNTCTRL, reg) < 0)
3871                 goto err;
3872
3873         reg = stv090x_read_reg(state, STV090x_TSTTNR1);
3874         STV090x_SETFIELD(reg, ADC1_PON_FIELD, 1);
3875         if (stv090x_write_reg(state, STV090x_TSTTNR1, reg) < 0)
3876                 goto err;
3877
3878         return 0;
3879 err:
3880         dprintk(FE_ERROR, 1, "I/O error");
3881         return -1;
3882 }
3883
3884 static void stv090x_release(struct dvb_frontend *fe)
3885 {
3886         struct stv090x_state *state = fe->demodulator_priv;
3887
3888         state->internal->num_used--;
3889         if (state->internal->num_used <= 0) {
3890
3891                 dprintk(FE_ERROR, 1, "Actually removing");
3892
3893                 remove_dev(state->internal);
3894                 kfree(state->internal);
3895         }
3896
3897         kfree(state);
3898 }
3899
3900 static int stv090x_ldpc_mode(struct stv090x_state *state, enum stv090x_mode ldpc_mode)
3901 {
3902         u32 reg = 0;
3903
3904         reg = stv090x_read_reg(state, STV090x_GENCFG);
3905
3906         switch (ldpc_mode) {
3907         case STV090x_DUAL:
3908         default:
3909                 if ((state->demod_mode != STV090x_DUAL) || (STV090x_GETFIELD(reg, DDEMOD_FIELD) != 1)) {
3910                         /* set LDPC to dual mode */
3911                         if (stv090x_write_reg(state, STV090x_GENCFG, 0x1d) < 0)
3912                                 goto err;
3913
3914                         state->demod_mode = STV090x_DUAL;
3915
3916                         reg = stv090x_read_reg(state, STV090x_TSTRES0);
3917                         STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x1);
3918                         if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
3919                                 goto err;
3920                         STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x0);
3921                         if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
3922                                 goto err;
3923
3924                         if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
3925                                 goto err;
3926                         if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xff) < 0)
3927                                 goto err;
3928                         if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0xff) < 0)
3929                                 goto err;
3930                         if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0xff) < 0)
3931                                 goto err;
3932                         if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0xff) < 0)
3933                                 goto err;
3934                         if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0xff) < 0)
3935                                 goto err;
3936                         if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0xff) < 0)
3937                                 goto err;
3938
3939                         if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0xcc) < 0)
3940                                 goto err;
3941                         if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0xcc) < 0)
3942                                 goto err;
3943                         if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0xcc) < 0)
3944                                 goto err;
3945                         if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0xcc) < 0)
3946                                 goto err;
3947                         if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0xcc) < 0)
3948                                 goto err;
3949                         if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0xcc) < 0)
3950                                 goto err;
3951                         if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0xcc) < 0)
3952                                 goto err;
3953
3954                         if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0xff) < 0)
3955                                 goto err;
3956                         if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0xcf) < 0)
3957                                 goto err;
3958                 }
3959                 break;
3960
3961         case STV090x_SINGLE:
3962                 if (stv090x_stop_modcod(state) < 0)
3963                         goto err;
3964                 if (stv090x_activate_modcod_single(state) < 0)
3965                         goto err;
3966
3967                 if (state->demod == STV090x_DEMODULATOR_1) {
3968                         if (stv090x_write_reg(state, STV090x_GENCFG, 0x06) < 0) /* path 2 */
3969                                 goto err;
3970                 } else {
3971                         if (stv090x_write_reg(state, STV090x_GENCFG, 0x04) < 0) /* path 1 */
3972                                 goto err;
3973                 }
3974
3975                 reg = stv090x_read_reg(state, STV090x_TSTRES0);
3976                 STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x1);
3977                 if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
3978                         goto err;
3979                 STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x0);
3980                 if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
3981                         goto err;
3982
3983                 reg = STV090x_READ_DEMOD(state, PDELCTRL1);
3984                 STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0x01);
3985                 if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
3986                         goto err;
3987                 STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0x00);
3988                 if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
3989                         goto err;
3990                 break;
3991         }
3992
3993         return 0;
3994 err:
3995         dprintk(FE_ERROR, 1, "I/O error");
3996         return -1;
3997 }
3998
3999 /* return (Hz), clk in Hz*/
4000 static u32 stv090x_get_mclk(struct stv090x_state *state)
4001 {
4002         const struct stv090x_config *config = state->config;
4003         u32 div, reg;
4004         u8 ratio;
4005
4006         div = stv090x_read_reg(state, STV090x_NCOARSE);
4007         reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
4008         ratio = STV090x_GETFIELD(reg, SELX1RATIO_FIELD) ? 4 : 6;
4009
4010         return (div + 1) * config->xtal / ratio; /* kHz */
4011 }
4012
4013 static int stv090x_set_mclk(struct stv090x_state *state, u32 mclk, u32 clk)
4014 {
4015         const struct stv090x_config *config = state->config;
4016         u32 reg, div, clk_sel;
4017
4018         reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
4019         clk_sel = ((STV090x_GETFIELD(reg, SELX1RATIO_FIELD) == 1) ? 4 : 6);
4020
4021         div = ((clk_sel * mclk) / config->xtal) - 1;
4022
4023         reg = stv090x_read_reg(state, STV090x_NCOARSE);
4024         STV090x_SETFIELD(reg, M_DIV_FIELD, div);
4025         if (stv090x_write_reg(state, STV090x_NCOARSE, reg) < 0)
4026                 goto err;
4027
4028         state->internal->mclk = stv090x_get_mclk(state);
4029
4030         /*Set the DiseqC frequency to 22KHz */
4031         div = state->internal->mclk / 704000;
4032         if (STV090x_WRITE_DEMOD(state, F22TX, div) < 0)
4033                 goto err;
4034         if (STV090x_WRITE_DEMOD(state, F22RX, div) < 0)
4035                 goto err;
4036
4037         return 0;
4038 err:
4039         dprintk(FE_ERROR, 1, "I/O error");
4040         return -1;
4041 }
4042
4043 static int stv090x_set_tspath(struct stv090x_state *state)
4044 {
4045         u32 reg;
4046
4047         if (state->internal->dev_ver >= 0x20) {
4048                 switch (state->config->ts1_mode) {
4049                 case STV090x_TSMODE_PARALLEL_PUNCTURED:
4050                 case STV090x_TSMODE_DVBCI:
4051                         switch (state->config->ts2_mode) {
4052                         case STV090x_TSMODE_SERIAL_PUNCTURED:
4053                         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4054                         default:
4055                                 stv090x_write_reg(state, STV090x_TSGENERAL, 0x00);
4056                                 break;
4057
4058                         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4059                         case STV090x_TSMODE_DVBCI:
4060                                 if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x06) < 0) /* Mux'd stream mode */
4061                                         goto err;
4062                                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4063                                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4064                                 if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4065                                         goto err;
4066                                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGM);
4067                                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4068                                 if (stv090x_write_reg(state, STV090x_P2_TSCFGM, reg) < 0)
4069                                         goto err;
4070                                 if (stv090x_write_reg(state, STV090x_P1_TSSPEED, 0x14) < 0)
4071                                         goto err;
4072                                 if (stv090x_write_reg(state, STV090x_P2_TSSPEED, 0x28) < 0)
4073                                         goto err;
4074                                 break;
4075                         }
4076                         break;
4077
4078                 case STV090x_TSMODE_SERIAL_PUNCTURED:
4079                 case STV090x_TSMODE_SERIAL_CONTINUOUS:
4080                 default:
4081                         switch (state->config->ts2_mode) {
4082                         case STV090x_TSMODE_SERIAL_PUNCTURED:
4083                         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4084                         default:
4085                                 if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x0c) < 0)
4086                                         goto err;
4087                                 break;
4088
4089                         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4090                         case STV090x_TSMODE_DVBCI:
4091                                 if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x0a) < 0)
4092                                         goto err;
4093                                 break;
4094                         }
4095                         break;
4096                 }
4097         } else {
4098                 switch (state->config->ts1_mode) {
4099                 case STV090x_TSMODE_PARALLEL_PUNCTURED:
4100                 case STV090x_TSMODE_DVBCI:
4101                         switch (state->config->ts2_mode) {
4102                         case STV090x_TSMODE_SERIAL_PUNCTURED:
4103                         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4104                         default:
4105                                 stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x10);
4106                                 break;
4107
4108                         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4109                         case STV090x_TSMODE_DVBCI:
4110                                 stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x16);
4111                                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4112                                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4113                                 if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4114                                         goto err;
4115                                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4116                                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 0);
4117                                 if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4118                                         goto err;
4119                                 if (stv090x_write_reg(state, STV090x_P1_TSSPEED, 0x14) < 0)
4120                                         goto err;
4121                                 if (stv090x_write_reg(state, STV090x_P2_TSSPEED, 0x28) < 0)
4122                                         goto err;
4123                                 break;
4124                         }
4125                         break;
4126
4127                 case STV090x_TSMODE_SERIAL_PUNCTURED:
4128                 case STV090x_TSMODE_SERIAL_CONTINUOUS:
4129                 default:
4130                         switch (state->config->ts2_mode) {
4131                         case STV090x_TSMODE_SERIAL_PUNCTURED:
4132                         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4133                         default:
4134                                 stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x14);
4135                                 break;
4136
4137                         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4138                         case STV090x_TSMODE_DVBCI:
4139                                 stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x12);
4140                                 break;
4141                         }
4142                         break;
4143                 }
4144         }
4145
4146         switch (state->config->ts1_mode) {
4147         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4148                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4149                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4150                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4151                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4152                         goto err;
4153                 break;
4154
4155         case STV090x_TSMODE_DVBCI:
4156                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4157                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4158                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4159                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4160                         goto err;
4161                 break;
4162
4163         case STV090x_TSMODE_SERIAL_PUNCTURED:
4164                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4165                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4166                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4167                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4168                         goto err;
4169                 break;
4170
4171         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4172                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4173                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4174                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4175                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4176                         goto err;
4177                 break;
4178
4179         default:
4180                 break;
4181         }
4182
4183         switch (state->config->ts2_mode) {
4184         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4185                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4186                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4187                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4188                 if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4189                         goto err;
4190                 break;
4191
4192         case STV090x_TSMODE_DVBCI:
4193                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4194                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4195                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4196                 if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4197                         goto err;
4198                 break;
4199
4200         case STV090x_TSMODE_SERIAL_PUNCTURED:
4201                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4202                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4203                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4204                 if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4205                         goto err;
4206                 break;
4207
4208         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4209                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4210                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4211                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4212                 if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4213                         goto err;
4214                 break;
4215
4216         default:
4217                 break;
4218         }
4219
4220         if (state->config->ts1_clk > 0) {
4221                 u32 speed;
4222
4223                 switch (state->config->ts1_mode) {
4224                 case STV090x_TSMODE_PARALLEL_PUNCTURED:
4225                 case STV090x_TSMODE_DVBCI:
4226                 default:
4227                         speed = state->internal->mclk /
4228                                 (state->config->ts1_clk / 4);
4229                         if (speed < 0x08)
4230                                 speed = 0x08;
4231                         if (speed > 0xFF)
4232                                 speed = 0xFF;
4233                         break;
4234                 case STV090x_TSMODE_SERIAL_PUNCTURED:
4235                 case STV090x_TSMODE_SERIAL_CONTINUOUS:
4236                         speed = state->internal->mclk /
4237                                 (state->config->ts1_clk / 32);
4238                         if (speed < 0x20)
4239                                 speed = 0x20;
4240                         if (speed > 0xFF)
4241                                 speed = 0xFF;
4242                         break;
4243                 }
4244                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4245                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4246                 if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4247                         goto err;
4248                 if (stv090x_write_reg(state, STV090x_P1_TSSPEED, speed) < 0)
4249                         goto err;
4250         }
4251
4252         if (state->config->ts2_clk > 0) {
4253                 u32 speed;
4254
4255                 switch (state->config->ts2_mode) {
4256                 case STV090x_TSMODE_PARALLEL_PUNCTURED:
4257                 case STV090x_TSMODE_DVBCI:
4258                 default:
4259                         speed = state->internal->mclk /
4260                                 (state->config->ts2_clk / 4);
4261                         if (speed < 0x08)
4262                                 speed = 0x08;
4263                         if (speed > 0xFF)
4264                                 speed = 0xFF;
4265                         break;
4266                 case STV090x_TSMODE_SERIAL_PUNCTURED:
4267                 case STV090x_TSMODE_SERIAL_CONTINUOUS:
4268                         speed = state->internal->mclk /
4269                                 (state->config->ts2_clk / 32);
4270                         if (speed < 0x20)
4271                                 speed = 0x20;
4272                         if (speed > 0xFF)
4273                                 speed = 0xFF;
4274                         break;
4275                 }
4276                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGM);
4277                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4278                 if (stv090x_write_reg(state, STV090x_P2_TSCFGM, reg) < 0)
4279                         goto err;
4280                 if (stv090x_write_reg(state, STV090x_P2_TSSPEED, speed) < 0)
4281                         goto err;
4282         }
4283
4284         reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4285         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x01);
4286         if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4287                 goto err;
4288         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x00);
4289         if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4290                 goto err;
4291
4292         reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4293         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x01);
4294         if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4295                 goto err;
4296         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x00);
4297         if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4298                 goto err;
4299
4300         return 0;
4301 err:
4302         dprintk(FE_ERROR, 1, "I/O error");
4303         return -1;
4304 }
4305
4306 static int stv090x_init(struct dvb_frontend *fe)
4307 {
4308         struct stv090x_state *state = fe->demodulator_priv;
4309         const struct stv090x_config *config = state->config;
4310         u32 reg;
4311
4312         if (state->internal->mclk == 0) {
4313                 stv090x_set_mclk(state, 135000000, config->xtal); /* 135 Mhz */
4314                 msleep(5);
4315                 if (stv090x_write_reg(state, STV090x_SYNTCTRL,
4316                                       0x20 | config->clk_mode) < 0)
4317                         goto err;
4318                 stv090x_get_mclk(state);
4319         }
4320
4321         if (stv090x_wakeup(fe) < 0) {
4322                 dprintk(FE_ERROR, 1, "Error waking device");
4323                 goto err;
4324         }
4325
4326         if (stv090x_ldpc_mode(state, state->demod_mode) < 0)
4327                 goto err;
4328
4329         reg = STV090x_READ_DEMOD(state, TNRCFG2);
4330         STV090x_SETFIELD_Px(reg, TUN_IQSWAP_FIELD, state->inversion);
4331         if (STV090x_WRITE_DEMOD(state, TNRCFG2, reg) < 0)
4332                 goto err;
4333         reg = STV090x_READ_DEMOD(state, DEMOD);
4334         STV090x_SETFIELD_Px(reg, ROLLOFF_CONTROL_FIELD, state->rolloff);
4335         if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
4336                 goto err;
4337
4338         if (stv090x_i2c_gate_ctrl(fe, 1) < 0)
4339                 goto err;
4340
4341         if (config->tuner_set_mode) {
4342                 if (config->tuner_set_mode(fe, TUNER_WAKE) < 0)
4343                         goto err_gateoff;
4344         }
4345
4346         if (config->tuner_init) {
4347                 if (config->tuner_init(fe) < 0)
4348                         goto err_gateoff;
4349         }
4350
4351         if (stv090x_i2c_gate_ctrl(fe, 0) < 0)
4352                 goto err;
4353
4354         if (stv090x_set_tspath(state) < 0)
4355                 goto err;
4356
4357         return 0;
4358
4359 err_gateoff:
4360         stv090x_i2c_gate_ctrl(fe, 0);
4361 err:
4362         dprintk(FE_ERROR, 1, "I/O error");
4363         return -1;
4364 }
4365
4366 static int stv090x_setup(struct dvb_frontend *fe)
4367 {
4368         struct stv090x_state *state = fe->demodulator_priv;
4369         const struct stv090x_config *config = state->config;
4370         const struct stv090x_reg *stv090x_initval = NULL;
4371         const struct stv090x_reg *stv090x_cut20_val = NULL;
4372         unsigned long t1_size = 0, t2_size = 0;
4373         u32 reg = 0;
4374
4375         int i;
4376
4377         if (state->device == STV0900) {
4378                 dprintk(FE_DEBUG, 1, "Initializing STV0900");
4379                 stv090x_initval = stv0900_initval;
4380                 t1_size = ARRAY_SIZE(stv0900_initval);
4381                 stv090x_cut20_val = stv0900_cut20_val;
4382                 t2_size = ARRAY_SIZE(stv0900_cut20_val);
4383         } else if (state->device == STV0903) {
4384                 dprintk(FE_DEBUG, 1, "Initializing STV0903");
4385                 stv090x_initval = stv0903_initval;
4386                 t1_size = ARRAY_SIZE(stv0903_initval);
4387                 stv090x_cut20_val = stv0903_cut20_val;
4388                 t2_size = ARRAY_SIZE(stv0903_cut20_val);
4389         }
4390
4391         /* STV090x init */
4392
4393         /* Stop Demod */
4394         if (stv090x_write_reg(state, STV090x_P1_DMDISTATE, 0x5c) < 0)
4395                 goto err;
4396         if (stv090x_write_reg(state, STV090x_P2_DMDISTATE, 0x5c) < 0)
4397                 goto err;
4398
4399         msleep(5);
4400
4401         /* Set No Tuner Mode */
4402         if (stv090x_write_reg(state, STV090x_P1_TNRCFG, 0x6c) < 0)
4403                 goto err;
4404         if (stv090x_write_reg(state, STV090x_P2_TNRCFG, 0x6c) < 0)
4405                 goto err;
4406
4407         /* I2C repeater OFF */
4408         STV090x_SETFIELD_Px(reg, ENARPT_LEVEL_FIELD, config->repeater_level);
4409         if (stv090x_write_reg(state, STV090x_P1_I2CRPT, reg) < 0)
4410                 goto err;
4411         if (stv090x_write_reg(state, STV090x_P2_I2CRPT, reg) < 0)
4412                 goto err;
4413
4414         if (stv090x_write_reg(state, STV090x_NCOARSE, 0x13) < 0) /* set PLL divider */
4415                 goto err;
4416         msleep(5);
4417         if (stv090x_write_reg(state, STV090x_I2CCFG, 0x08) < 0) /* 1/41 oversampling */
4418                 goto err;
4419         if (stv090x_write_reg(state, STV090x_SYNTCTRL, 0x20 | config->clk_mode) < 0) /* enable PLL */
4420                 goto err;
4421         msleep(5);
4422
4423         /* write initval */
4424         dprintk(FE_DEBUG, 1, "Setting up initial values");
4425         for (i = 0; i < t1_size; i++) {
4426                 if (stv090x_write_reg(state, stv090x_initval[i].addr, stv090x_initval[i].data) < 0)
4427                         goto err;
4428         }
4429
4430         state->internal->dev_ver = stv090x_read_reg(state, STV090x_MID);
4431         if (state->internal->dev_ver >= 0x20) {
4432                 if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x0c) < 0)
4433                         goto err;
4434
4435                 /* write cut20_val*/
4436                 dprintk(FE_DEBUG, 1, "Setting up Cut 2.0 initial values");
4437                 for (i = 0; i < t2_size; i++) {
4438                         if (stv090x_write_reg(state, stv090x_cut20_val[i].addr, stv090x_cut20_val[i].data) < 0)
4439                                 goto err;
4440                 }
4441
4442         } else if (state->internal->dev_ver < 0x20) {
4443                 dprintk(FE_ERROR, 1, "ERROR: Unsupported Cut: 0x%02x!",
4444                         state->internal->dev_ver);
4445
4446                 goto err;
4447         } else if (state->internal->dev_ver > 0x30) {
4448                 /* we shouldn't bail out from here */
4449                 dprintk(FE_ERROR, 1, "INFO: Cut: 0x%02x probably incomplete support!",
4450                         state->internal->dev_ver);
4451         }
4452
4453         /* ADC1 range */
4454         reg = stv090x_read_reg(state, STV090x_TSTTNR1);
4455         STV090x_SETFIELD(reg, ADC1_INMODE_FIELD,
4456                 (config->adc1_range == STV090x_ADC_1Vpp) ? 0 : 1);
4457         if (stv090x_write_reg(state, STV090x_TSTTNR1, reg) < 0)
4458                 goto err;
4459
4460         /* ADC2 range */
4461         reg = stv090x_read_reg(state, STV090x_TSTTNR3);
4462         STV090x_SETFIELD(reg, ADC2_INMODE_FIELD,
4463                 (config->adc2_range == STV090x_ADC_1Vpp) ? 0 : 1);
4464         if (stv090x_write_reg(state, STV090x_TSTTNR3, reg) < 0)
4465                 goto err;
4466
4467         if (stv090x_write_reg(state, STV090x_TSTRES0, 0x80) < 0)
4468                 goto err;
4469         if (stv090x_write_reg(state, STV090x_TSTRES0, 0x00) < 0)
4470                 goto err;
4471
4472         return 0;
4473 err:
4474         dprintk(FE_ERROR, 1, "I/O error");
4475         return -1;
4476 }
4477
4478 static struct dvb_frontend_ops stv090x_ops = {
4479
4480         .info = {
4481                 .name                   = "STV090x Multistandard",
4482                 .type                   = FE_QPSK,
4483                 .frequency_min          = 950000,
4484                 .frequency_max          = 2150000,
4485                 .frequency_stepsize     = 0,
4486                 .frequency_tolerance    = 0,
4487                 .symbol_rate_min        = 1000000,
4488                 .symbol_rate_max        = 45000000,
4489                 .caps                   = FE_CAN_INVERSION_AUTO |
4490                                           FE_CAN_FEC_AUTO       |
4491                                           FE_CAN_QPSK           |
4492                                           FE_CAN_2G_MODULATION
4493         },
4494
4495         .release                        = stv090x_release,
4496         .init                           = stv090x_init,
4497
4498         .sleep                          = stv090x_sleep,
4499         .get_frontend_algo              = stv090x_frontend_algo,
4500
4501         .i2c_gate_ctrl                  = stv090x_i2c_gate_ctrl,
4502
4503         .diseqc_send_master_cmd         = stv090x_send_diseqc_msg,
4504         .diseqc_send_burst              = stv090x_send_diseqc_burst,
4505         .diseqc_recv_slave_reply        = stv090x_recv_slave_reply,
4506         .set_tone                       = stv090x_set_tone,
4507
4508         .search                         = stv090x_search,
4509         .read_status                    = stv090x_read_status,
4510         .read_ber                       = stv090x_read_per,
4511         .read_signal_strength           = stv090x_read_signal_strength,
4512         .read_snr                       = stv090x_read_cnr
4513 };
4514
4515
4516 struct dvb_frontend *stv090x_attach(const struct stv090x_config *config,
4517                                     struct i2c_adapter *i2c,
4518                                     enum stv090x_demodulator demod)
4519 {
4520         struct stv090x_state *state = NULL;
4521         struct stv090x_dev *temp_int;
4522
4523         state = kzalloc(sizeof (struct stv090x_state), GFP_KERNEL);
4524         if (state == NULL)
4525                 goto error;
4526
4527         state->verbose                          = &verbose;
4528         state->config                           = config;
4529         state->i2c                              = i2c;
4530         state->frontend.ops                     = stv090x_ops;
4531         state->frontend.demodulator_priv        = state;
4532         state->demod                            = demod;
4533         state->demod_mode                       = config->demod_mode; /* Single or Dual mode */
4534         state->device                           = config->device;
4535         state->rolloff                          = STV090x_RO_35; /* default */
4536
4537         temp_int = find_dev(state->i2c,
4538                                 state->config->address);
4539
4540         if ((temp_int != NULL) && (state->demod_mode == STV090x_DUAL)) {
4541                 state->internal = temp_int->internal;
4542                 state->internal->num_used++;
4543                 dprintk(FE_INFO, 1, "Found Internal Structure!");
4544                 dprintk(FE_ERROR, 1, "Attaching %s demodulator(%d) Cut=0x%02x",
4545                         state->device == STV0900 ? "STV0900" : "STV0903",
4546                         demod,
4547                         state->internal->dev_ver);
4548                 return &state->frontend;
4549         } else {
4550                 state->internal = kmalloc(sizeof(struct stv090x_internal),
4551                                           GFP_KERNEL);
4552                 temp_int = append_internal(state->internal);
4553                 state->internal->num_used = 1;
4554                 state->internal->mclk = 0;
4555                 state->internal->dev_ver = 0;
4556                 state->internal->i2c_adap = state->i2c;
4557                 state->internal->i2c_addr = state->config->address;
4558                 dprintk(FE_INFO, 1, "Create New Internal Structure!");
4559         }
4560
4561         mutex_init(&state->internal->demod_lock);
4562         mutex_init(&state->internal->tuner_lock);
4563
4564         if (stv090x_sleep(&state->frontend) < 0) {
4565                 dprintk(FE_ERROR, 1, "Error putting device to sleep");
4566                 goto error;
4567         }
4568
4569         if (stv090x_setup(&state->frontend) < 0) {
4570                 dprintk(FE_ERROR, 1, "Error setting up device");
4571                 goto error;
4572         }
4573         if (stv090x_wakeup(&state->frontend) < 0) {
4574                 dprintk(FE_ERROR, 1, "Error waking device");
4575                 goto error;
4576         }
4577
4578         dprintk(FE_ERROR, 1, "Attaching %s demodulator(%d) Cut=0x%02x",
4579                state->device == STV0900 ? "STV0900" : "STV0903",
4580                demod,
4581                state->internal->dev_ver);
4582
4583         return &state->frontend;
4584
4585 error:
4586         kfree(state);
4587         return NULL;
4588 }
4589 EXPORT_SYMBOL(stv090x_attach);
4590 MODULE_PARM_DESC(verbose, "Set Verbosity level");
4591 MODULE_AUTHOR("Manu Abraham");
4592 MODULE_DESCRIPTION("STV090x Multi-Std Broadcast frontend");
4593 MODULE_LICENSE("GPL");