Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-backlight
[linux-2.6] / drivers / media / dvb / frontends / dvb-pll.c
1 /*
2  * descriptions + helper functions for simple dvb plls.
3  *
4  * (c) 2004 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
5  *
6  *  This program is free software; you can redistribute it and/or modify
7  *  it under the terms of the GNU General Public License as published by
8  *  the Free Software Foundation; either version 2 of the License, or
9  *  (at your option) any later version.
10  *
11  *  This program is distributed in the hope that it will be useful,
12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  *  GNU General Public License for more details.
15  *
16  *  You should have received a copy of the GNU General Public License
17  *  along with this program; if not, write to the Free Software
18  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19  */
20
21 #include <linux/module.h>
22 #include <linux/dvb/frontend.h>
23 #include <asm/types.h>
24
25 #include "dvb-pll.h"
26
27 struct dvb_pll_desc {
28         char *name;
29         u32  min;
30         u32  max;
31         u32  iffreq;
32         void (*set)(u8 *buf, const struct dvb_frontend_parameters *params);
33         u8   *initdata;
34         u8   *sleepdata;
35         int  count;
36         struct {
37                 u32 limit;
38                 u32 stepsize;
39                 u8  config;
40                 u8  cb;
41         } entries[12];
42 };
43
44 /* ----------------------------------------------------------- */
45 /* descriptions                                                */
46
47 /* Set AGC TOP value to 103 dBuV:
48         0x80 = Control Byte
49         0x40 = 250 uA charge pump (irrelevant)
50         0x18 = Aux Byte to follow
51         0x06 = 64.5 kHz divider (irrelevant)
52         0x01 = Disable Vt (aka sleep)
53
54         0x00 = AGC Time constant 2s Iagc = 300 nA (vs 0x80 = 9 nA)
55         0x50 = AGC Take over point = 103 dBuV */
56 static u8 tua603x_agc103[] = { 2, 0x80|0x40|0x18|0x06|0x01, 0x00|0x50 };
57
58 /*      0x04 = 166.67 kHz divider
59
60         0x80 = AGC Time constant 50ms Iagc = 9 uA
61         0x20 = AGC Take over point = 112 dBuV */
62 static u8 tua603x_agc112[] = { 2, 0x80|0x40|0x18|0x04|0x01, 0x80|0x20 };
63
64 static struct dvb_pll_desc dvb_pll_thomson_dtt7579 = {
65         .name  = "Thomson dtt7579",
66         .min   = 177000000,
67         .max   = 858000000,
68         .iffreq= 36166667,
69         .sleepdata = (u8[]){ 2, 0xb4, 0x03 },
70         .count = 4,
71         .entries = {
72                 {  443250000, 166667, 0xb4, 0x02 },
73                 {  542000000, 166667, 0xb4, 0x08 },
74                 {  771000000, 166667, 0xbc, 0x08 },
75                 {  999999999, 166667, 0xf4, 0x08 },
76         },
77 };
78
79 static struct dvb_pll_desc dvb_pll_thomson_dtt7610 = {
80         .name  = "Thomson dtt7610",
81         .min   =  44000000,
82         .max   = 958000000,
83         .iffreq= 44000000,
84         .count = 3,
85         .entries = {
86                 { 157250000, 62500, 0x8e, 0x39 },
87                 { 454000000, 62500, 0x8e, 0x3a },
88                 { 999999999, 62500, 0x8e, 0x3c },
89         },
90 };
91
92 static void thomson_dtt759x_bw(u8 *buf,
93                                const struct dvb_frontend_parameters *params)
94 {
95         if (BANDWIDTH_7_MHZ == params->u.ofdm.bandwidth)
96                 buf[3] |= 0x10;
97 }
98
99 static struct dvb_pll_desc dvb_pll_thomson_dtt759x = {
100         .name  = "Thomson dtt759x",
101         .min   = 177000000,
102         .max   = 896000000,
103         .set   = thomson_dtt759x_bw,
104         .iffreq= 36166667,
105         .sleepdata = (u8[]){ 2, 0x84, 0x03 },
106         .count = 5,
107         .entries = {
108                 {  264000000, 166667, 0xb4, 0x02 },
109                 {  470000000, 166667, 0xbc, 0x02 },
110                 {  735000000, 166667, 0xbc, 0x08 },
111                 {  835000000, 166667, 0xf4, 0x08 },
112                 {  999999999, 166667, 0xfc, 0x08 },
113         },
114 };
115
116 static struct dvb_pll_desc dvb_pll_lg_z201 = {
117         .name  = "LG z201",
118         .min   = 174000000,
119         .max   = 862000000,
120         .iffreq= 36166667,
121         .sleepdata = (u8[]){ 2, 0xbc, 0x03 },
122         .count = 5,
123         .entries = {
124                 {  157500000, 166667, 0xbc, 0x01 },
125                 {  443250000, 166667, 0xbc, 0x02 },
126                 {  542000000, 166667, 0xbc, 0x04 },
127                 {  830000000, 166667, 0xf4, 0x04 },
128                 {  999999999, 166667, 0xfc, 0x04 },
129         },
130 };
131
132 static struct dvb_pll_desc dvb_pll_microtune_4042 = {
133         .name  = "Microtune 4042 FI5",
134         .min   =  57000000,
135         .max   = 858000000,
136         .iffreq= 44000000,
137         .count = 3,
138         .entries = {
139                 { 162000000, 62500, 0x8e, 0xa1 },
140                 { 457000000, 62500, 0x8e, 0x91 },
141                 { 999999999, 62500, 0x8e, 0x31 },
142         },
143 };
144
145 static struct dvb_pll_desc dvb_pll_thomson_dtt761x = {
146         /* DTT 7611 7611A 7612 7613 7613A 7614 7615 7615A */
147         .name  = "Thomson dtt761x",
148         .min   =  57000000,
149         .max   = 863000000,
150         .iffreq= 44000000,
151         .count = 3,
152         .initdata = tua603x_agc103,
153         .entries = {
154                 { 147000000, 62500, 0x8e, 0x39 },
155                 { 417000000, 62500, 0x8e, 0x3a },
156                 { 999999999, 62500, 0x8e, 0x3c },
157         },
158 };
159
160 static struct dvb_pll_desc dvb_pll_unknown_1 = {
161         .name  = "unknown 1", /* used by dntv live dvb-t */
162         .min   = 174000000,
163         .max   = 862000000,
164         .iffreq= 36166667,
165         .count = 9,
166         .entries = {
167                 {  150000000, 166667, 0xb4, 0x01 },
168                 {  173000000, 166667, 0xbc, 0x01 },
169                 {  250000000, 166667, 0xb4, 0x02 },
170                 {  400000000, 166667, 0xbc, 0x02 },
171                 {  420000000, 166667, 0xf4, 0x02 },
172                 {  470000000, 166667, 0xfc, 0x02 },
173                 {  600000000, 166667, 0xbc, 0x08 },
174                 {  730000000, 166667, 0xf4, 0x08 },
175                 {  999999999, 166667, 0xfc, 0x08 },
176         },
177 };
178
179 /* Infineon TUA6010XS
180  * used in Thomson Cable Tuner
181  */
182 static struct dvb_pll_desc dvb_pll_tua6010xs = {
183         .name  = "Infineon TUA6010XS",
184         .min   =  44250000,
185         .max   = 858000000,
186         .iffreq= 36125000,
187         .count = 3,
188         .entries = {
189                 {  115750000, 62500, 0x8e, 0x03 },
190                 {  403250000, 62500, 0x8e, 0x06 },
191                 {  999999999, 62500, 0x8e, 0x85 },
192         },
193 };
194
195 /* Panasonic env57h1xd5 (some Philips PLL ?) */
196 static struct dvb_pll_desc dvb_pll_env57h1xd5 = {
197         .name  = "Panasonic ENV57H1XD5",
198         .min   =  44250000,
199         .max   = 858000000,
200         .iffreq= 36125000,
201         .count = 4,
202         .entries = {
203                 {  153000000, 166667, 0xc2, 0x41 },
204                 {  470000000, 166667, 0xc2, 0x42 },
205                 {  526000000, 166667, 0xc2, 0x84 },
206                 {  999999999, 166667, 0xc2, 0xa4 },
207         },
208 };
209
210 /* Philips TDA6650/TDA6651
211  * used in Panasonic ENV77H11D5
212  */
213 static void tda665x_bw(u8 *buf, const struct dvb_frontend_parameters *params)
214 {
215         if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
216                 buf[3] |= 0x08;
217 }
218
219 static struct dvb_pll_desc dvb_pll_tda665x = {
220         .name  = "Philips TDA6650/TDA6651",
221         .min   =  44250000,
222         .max   = 858000000,
223         .set   = tda665x_bw,
224         .iffreq= 36166667,
225         .initdata = (u8[]){ 4, 0x0b, 0xf5, 0x85, 0xab },
226         .count = 12,
227         .entries = {
228                 {   93834000, 166667, 0xca, 0x61 /* 011 0 0 0  01 */ },
229                 {  123834000, 166667, 0xca, 0xa1 /* 101 0 0 0  01 */ },
230                 {  161000000, 166667, 0xca, 0xa1 /* 101 0 0 0  01 */ },
231                 {  163834000, 166667, 0xca, 0xc2 /* 110 0 0 0  10 */ },
232                 {  253834000, 166667, 0xca, 0x62 /* 011 0 0 0  10 */ },
233                 {  383834000, 166667, 0xca, 0xa2 /* 101 0 0 0  10 */ },
234                 {  443834000, 166667, 0xca, 0xc2 /* 110 0 0 0  10 */ },
235                 {  444000000, 166667, 0xca, 0xc4 /* 110 0 0 1  00 */ },
236                 {  583834000, 166667, 0xca, 0x64 /* 011 0 0 1  00 */ },
237                 {  793834000, 166667, 0xca, 0xa4 /* 101 0 0 1  00 */ },
238                 {  444834000, 166667, 0xca, 0xc4 /* 110 0 0 1  00 */ },
239                 {  861000000, 166667, 0xca, 0xe4 /* 111 0 0 1  00 */ },
240         }
241 };
242
243 /* Infineon TUA6034
244  * used in LG TDTP E102P
245  */
246 static void tua6034_bw(u8 *buf, const struct dvb_frontend_parameters *params)
247 {
248         if (BANDWIDTH_7_MHZ != params->u.ofdm.bandwidth)
249                 buf[3] |= 0x08;
250 }
251
252 static struct dvb_pll_desc dvb_pll_tua6034 = {
253         .name  = "Infineon TUA6034",
254         .min   =  44250000,
255         .max   = 858000000,
256         .iffreq= 36166667,
257         .count = 3,
258         .set   = tua6034_bw,
259         .entries = {
260                 {  174500000, 62500, 0xce, 0x01 },
261                 {  230000000, 62500, 0xce, 0x02 },
262                 {  999999999, 62500, 0xce, 0x04 },
263         },
264 };
265
266 /* Infineon TUA6034
267  * used in LG TDVS-H061F, LG TDVS-H062F and LG TDVS-H064F
268  */
269 static struct dvb_pll_desc dvb_pll_lg_tdvs_h06xf = {
270         .name  = "LG TDVS-H06xF",
271         .min   =  54000000,
272         .max   = 863000000,
273         .iffreq= 44000000,
274         .initdata = tua603x_agc103,
275         .count = 3,
276         .entries = {
277                 {  165000000, 62500, 0xce, 0x01 },
278                 {  450000000, 62500, 0xce, 0x02 },
279                 {  999999999, 62500, 0xce, 0x04 },
280         },
281 };
282
283 /* Philips FMD1216ME
284  * used in Medion Hybrid PCMCIA card and USB Box
285  */
286 static void fmd1216me_bw(u8 *buf, const struct dvb_frontend_parameters *params)
287 {
288         if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ &&
289             params->frequency >= 158870000)
290                 buf[3] |= 0x08;
291 }
292
293 static struct dvb_pll_desc dvb_pll_fmd1216me = {
294         .name = "Philips FMD1216ME",
295         .min = 50870000,
296         .max = 858000000,
297         .iffreq= 36125000,
298         .set   = fmd1216me_bw,
299         .initdata = tua603x_agc112,
300         .sleepdata = (u8[]){ 4, 0x9c, 0x60, 0x85, 0x54 },
301         .count = 7,
302         .entries = {
303                 { 143870000, 166667, 0xbc, 0x41 },
304                 { 158870000, 166667, 0xf4, 0x41 },
305                 { 329870000, 166667, 0xbc, 0x42 },
306                 { 441870000, 166667, 0xf4, 0x42 },
307                 { 625870000, 166667, 0xbc, 0x44 },
308                 { 803870000, 166667, 0xf4, 0x44 },
309                 { 999999999, 166667, 0xfc, 0x44 },
310         }
311 };
312
313 /* ALPS TDED4
314  * used in Nebula-Cards and USB boxes
315  */
316 static void tded4_bw(u8 *buf, const struct dvb_frontend_parameters *params)
317 {
318         if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
319                 buf[3] |= 0x04;
320 }
321
322 static struct dvb_pll_desc dvb_pll_tded4 = {
323         .name = "ALPS TDED4",
324         .min = 47000000,
325         .max = 863000000,
326         .iffreq= 36166667,
327         .set   = tded4_bw,
328         .count = 4,
329         .entries = {
330                 { 153000000, 166667, 0x85, 0x01 },
331                 { 470000000, 166667, 0x85, 0x02 },
332                 { 823000000, 166667, 0x85, 0x08 },
333                 { 999999999, 166667, 0x85, 0x88 },
334         }
335 };
336
337 /* ALPS TDHU2
338  * used in AverTVHD MCE A180
339  */
340 static struct dvb_pll_desc dvb_pll_tdhu2 = {
341         .name = "ALPS TDHU2",
342         .min = 54000000,
343         .max = 864000000,
344         .iffreq= 44000000,
345         .count = 4,
346         .entries = {
347                 { 162000000, 62500, 0x85, 0x01 },
348                 { 426000000, 62500, 0x85, 0x02 },
349                 { 782000000, 62500, 0x85, 0x08 },
350                 { 999999999, 62500, 0x85, 0x88 },
351         }
352 };
353
354 /* Philips TUV1236D
355  * used in ATI HDTV Wonder
356  */
357 static void tuv1236d_rf(u8 *buf, const struct dvb_frontend_parameters *params)
358 {
359         switch (params->u.vsb.modulation) {
360                 case QAM_64:
361                 case QAM_256:
362                         buf[3] |= 0x08;
363                         break;
364                 case VSB_8:
365                 default:
366                         buf[3] &= ~0x08;
367         }
368 }
369
370 static struct dvb_pll_desc dvb_pll_tuv1236d = {
371         .name  = "Philips TUV1236D",
372         .min   =  54000000,
373         .max   = 864000000,
374         .iffreq= 44000000,
375         .set   = tuv1236d_rf,
376         .count = 3,
377         .entries = {
378                 { 157250000, 62500, 0xc6, 0x41 },
379                 { 454000000, 62500, 0xc6, 0x42 },
380                 { 999999999, 62500, 0xc6, 0x44 },
381         },
382 };
383
384 /* Samsung TBMV30111IN / TBMV30712IN1
385  * used in Air2PC ATSC - 2nd generation (nxt2002)
386  */
387 static struct dvb_pll_desc dvb_pll_samsung_tbmv = {
388         .name = "Samsung TBMV30111IN / TBMV30712IN1",
389         .min = 54000000,
390         .max = 860000000,
391         .iffreq= 44000000,
392         .count = 6,
393         .entries = {
394                 { 172000000, 166667, 0xb4, 0x01 },
395                 { 214000000, 166667, 0xb4, 0x02 },
396                 { 467000000, 166667, 0xbc, 0x02 },
397                 { 721000000, 166667, 0xbc, 0x08 },
398                 { 841000000, 166667, 0xf4, 0x08 },
399                 { 999999999, 166667, 0xfc, 0x02 },
400         }
401 };
402
403 /*
404  * Philips SD1878 Tuner.
405  */
406 static struct dvb_pll_desc dvb_pll_philips_sd1878_tda8261 = {
407         .name  = "Philips SD1878",
408         .min   =  950000,
409         .max   = 2150000,
410         .iffreq= 249, /* zero-IF, offset 249 is to round up */
411         .count = 4,
412         .entries = {
413                 { 1250000, 500, 0xc4, 0x00},
414                 { 1550000, 500, 0xc4, 0x40},
415                 { 2050000, 500, 0xc4, 0x80},
416                 { 2150000, 500, 0xc4, 0xc0},
417         },
418 };
419
420 /*
421  * Philips TD1316 Tuner.
422  */
423 static void td1316_bw(u8 *buf, const struct dvb_frontend_parameters *params)
424 {
425         u8 band;
426
427         /* determine band */
428         if (params->frequency < 161000000)
429                 band = 1;
430         else if (params->frequency < 444000000)
431                 band = 2;
432         else
433                 band = 4;
434
435         buf[3] |= band;
436
437         /* setup PLL filter */
438         if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
439                 buf[3] |= 1 << 3;
440 }
441
442 static struct dvb_pll_desc dvb_pll_philips_td1316 = {
443         .name  = "Philips TD1316",
444         .min   =  87000000,
445         .max   = 895000000,
446         .iffreq= 36166667,
447         .set   = td1316_bw,
448         .count = 9,
449         .entries = {
450                 {  93834000, 166667, 0xca, 0x60},
451                 { 123834000, 166667, 0xca, 0xa0},
452                 { 163834000, 166667, 0xca, 0xc0},
453                 { 253834000, 166667, 0xca, 0x60},
454                 { 383834000, 166667, 0xca, 0xa0},
455                 { 443834000, 166667, 0xca, 0xc0},
456                 { 583834000, 166667, 0xca, 0x60},
457                 { 793834000, 166667, 0xca, 0xa0},
458                 { 858834000, 166667, 0xca, 0xe0},
459         },
460 };
461
462 /* FE6600 used on DViCO Hybrid */
463 static struct dvb_pll_desc dvb_pll_thomson_fe6600 = {
464         .name = "Thomson FE6600",
465         .min =  44250000,
466         .max = 858000000,
467         .iffreq= 36125000,
468         .count = 4,
469         .entries = {
470                 { 250000000, 166667, 0xb4, 0x12 },
471                 { 455000000, 166667, 0xfe, 0x11 },
472                 { 775500000, 166667, 0xbc, 0x18 },
473                 { 999999999, 166667, 0xf4, 0x18 },
474         }
475 };
476
477 static void opera1_bw(u8 *buf, const struct dvb_frontend_parameters *params)
478 {
479         if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
480                 buf[2] |= 0x08;
481 }
482
483 static struct dvb_pll_desc dvb_pll_opera1 = {
484         .name  = "Opera Tuner",
485         .min   =  900000,
486         .max   = 2250000,
487         .iffreq= 0,
488         .set   = opera1_bw,
489         .count = 8,
490         .entries = {
491                 { 1064000, 500, 0xe5, 0xc6 },
492                 { 1169000, 500, 0xe5, 0xe6 },
493                 { 1299000, 500, 0xe5, 0x24 },
494                 { 1444000, 500, 0xe5, 0x44 },
495                 { 1606000, 500, 0xe5, 0x64 },
496                 { 1777000, 500, 0xe5, 0x84 },
497                 { 1941000, 500, 0xe5, 0xa4 },
498                 { 2250000, 500, 0xe5, 0xc4 },
499         }
500 };
501
502 /* Philips FCV1236D
503  */
504 struct dvb_pll_desc dvb_pll_fcv1236d = {
505 /* Bit_0: RF Input select
506  * Bit_1: 0=digital, 1=analog
507  */
508         .name  = "Philips FCV1236D",
509         .min   =  53000000,
510         .max   = 803000000,
511         .iffreq= 44000000,
512         .count = 3,
513         .entries = {
514                 { 159000000, 62500, 0x8e, 0xa0 },
515                 { 453000000, 62500, 0x8e, 0x90 },
516                 { 999999999, 62500, 0x8e, 0x30 },
517         },
518 };
519
520 /* ----------------------------------------------------------- */
521
522 static struct dvb_pll_desc *pll_list[] = {
523         [DVB_PLL_UNDEFINED]              = NULL,
524         [DVB_PLL_THOMSON_DTT7579]        = &dvb_pll_thomson_dtt7579,
525         [DVB_PLL_THOMSON_DTT759X]        = &dvb_pll_thomson_dtt759x,
526         [DVB_PLL_THOMSON_DTT7610]        = &dvb_pll_thomson_dtt7610,
527         [DVB_PLL_LG_Z201]                = &dvb_pll_lg_z201,
528         [DVB_PLL_MICROTUNE_4042]         = &dvb_pll_microtune_4042,
529         [DVB_PLL_THOMSON_DTT761X]        = &dvb_pll_thomson_dtt761x,
530         [DVB_PLL_UNKNOWN_1]              = &dvb_pll_unknown_1,
531         [DVB_PLL_TUA6010XS]              = &dvb_pll_tua6010xs,
532         [DVB_PLL_ENV57H1XD5]             = &dvb_pll_env57h1xd5,
533         [DVB_PLL_TUA6034]                = &dvb_pll_tua6034,
534         [DVB_PLL_LG_TDVS_H06XF]          = &dvb_pll_lg_tdvs_h06xf,
535         [DVB_PLL_TDA665X]                = &dvb_pll_tda665x,
536         [DVB_PLL_FMD1216ME]              = &dvb_pll_fmd1216me,
537         [DVB_PLL_TDED4]                  = &dvb_pll_tded4,
538         [DVB_PLL_TUV1236D]               = &dvb_pll_tuv1236d,
539         [DVB_PLL_TDHU2]                  = &dvb_pll_tdhu2,
540         [DVB_PLL_SAMSUNG_TBMV]           = &dvb_pll_samsung_tbmv,
541         [DVB_PLL_PHILIPS_SD1878_TDA8261] = &dvb_pll_philips_sd1878_tda8261,
542         [DVB_PLL_PHILIPS_TD1316]         = &dvb_pll_philips_td1316,
543         [DVB_PLL_THOMSON_FE6600]         = &dvb_pll_thomson_fe6600,
544         [DVB_PLL_OPERA1]                 = &dvb_pll_opera1,
545         [DVB_PLL_FCV1236D]               = &dvb_pll_fcv1236d,
546 };
547
548 /* ----------------------------------------------------------- */
549
550 struct dvb_pll_priv {
551         /* i2c details */
552         int pll_i2c_address;
553         struct i2c_adapter *i2c;
554
555         /* the PLL descriptor */
556         struct dvb_pll_desc *pll_desc;
557
558         /* cached frequency/bandwidth */
559         u32 frequency;
560         u32 bandwidth;
561 };
562
563 /* ----------------------------------------------------------- */
564 /* code                                                        */
565
566 static int debug = 0;
567 module_param(debug, int, 0644);
568 MODULE_PARM_DESC(debug, "enable verbose debug messages");
569
570 static int dvb_pll_configure(struct dvb_pll_desc *desc, u8 *buf,
571                              const struct dvb_frontend_parameters *params)
572 {
573         u32 div;
574         int i;
575
576         if (params->frequency != 0 && (params->frequency < desc->min ||
577                                        params->frequency > desc->max))
578                 return -EINVAL;
579
580         for (i = 0; i < desc->count; i++) {
581                 if (params->frequency > desc->entries[i].limit)
582                         continue;
583                 break;
584         }
585
586         if (debug)
587                 printk("pll: %s: freq=%d | i=%d/%d\n", desc->name,
588                        params->frequency, i, desc->count);
589         if (i == desc->count)
590                 return -EINVAL;
591
592         div = (params->frequency + desc->iffreq +
593                desc->entries[i].stepsize/2) / desc->entries[i].stepsize;
594         buf[0] = div >> 8;
595         buf[1] = div & 0xff;
596         buf[2] = desc->entries[i].config;
597         buf[3] = desc->entries[i].cb;
598
599         if (desc->set)
600                 desc->set(buf, params);
601
602         if (debug)
603                 printk("pll: %s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
604                        desc->name, div, buf[0], buf[1], buf[2], buf[3]);
605
606         // calculate the frequency we set it to
607         return (div * desc->entries[i].stepsize) - desc->iffreq;
608 }
609
610 static int dvb_pll_release(struct dvb_frontend *fe)
611 {
612         kfree(fe->tuner_priv);
613         fe->tuner_priv = NULL;
614         return 0;
615 }
616
617 static int dvb_pll_sleep(struct dvb_frontend *fe)
618 {
619         struct dvb_pll_priv *priv = fe->tuner_priv;
620
621         if (priv->i2c == NULL)
622                 return -EINVAL;
623
624         if (priv->pll_desc->sleepdata) {
625                 struct i2c_msg msg = { .flags = 0,
626                         .addr = priv->pll_i2c_address,
627                         .buf = priv->pll_desc->sleepdata + 1,
628                         .len = priv->pll_desc->sleepdata[0] };
629
630                 int result;
631
632                 if (fe->ops.i2c_gate_ctrl)
633                         fe->ops.i2c_gate_ctrl(fe, 1);
634                 if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
635                         return result;
636                 }
637                 return 0;
638         }
639         /* Shouldn't be called when initdata is NULL, maybe BUG()? */
640         return -EINVAL;
641 }
642
643 static int dvb_pll_set_params(struct dvb_frontend *fe,
644                               struct dvb_frontend_parameters *params)
645 {
646         struct dvb_pll_priv *priv = fe->tuner_priv;
647         u8 buf[4];
648         struct i2c_msg msg =
649                 { .addr = priv->pll_i2c_address, .flags = 0,
650                   .buf = buf, .len = sizeof(buf) };
651         int result;
652         u32 frequency = 0;
653
654         if (priv->i2c == NULL)
655                 return -EINVAL;
656
657         if ((result = dvb_pll_configure(priv->pll_desc, buf, params)) < 0)
658                 return result;
659         else
660                 frequency = result;
661
662         if (fe->ops.i2c_gate_ctrl)
663                 fe->ops.i2c_gate_ctrl(fe, 1);
664         if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
665                 return result;
666         }
667
668         priv->frequency = frequency;
669         priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0;
670
671         return 0;
672 }
673
674 static int dvb_pll_calc_regs(struct dvb_frontend *fe,
675                              struct dvb_frontend_parameters *params,
676                              u8 *buf, int buf_len)
677 {
678         struct dvb_pll_priv *priv = fe->tuner_priv;
679         int result;
680         u32 frequency = 0;
681
682         if (buf_len < 5)
683                 return -EINVAL;
684
685         if ((result = dvb_pll_configure(priv->pll_desc, buf+1, params)) < 0)
686                 return result;
687         else
688                 frequency = result;
689
690         buf[0] = priv->pll_i2c_address;
691
692         priv->frequency = frequency;
693         priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0;
694
695         return 5;
696 }
697
698 static int dvb_pll_get_frequency(struct dvb_frontend *fe, u32 *frequency)
699 {
700         struct dvb_pll_priv *priv = fe->tuner_priv;
701         *frequency = priv->frequency;
702         return 0;
703 }
704
705 static int dvb_pll_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
706 {
707         struct dvb_pll_priv *priv = fe->tuner_priv;
708         *bandwidth = priv->bandwidth;
709         return 0;
710 }
711
712 static int dvb_pll_init(struct dvb_frontend *fe)
713 {
714         struct dvb_pll_priv *priv = fe->tuner_priv;
715
716         if (priv->i2c == NULL)
717                 return -EINVAL;
718
719         if (priv->pll_desc->initdata) {
720                 struct i2c_msg msg = { .flags = 0,
721                         .addr = priv->pll_i2c_address,
722                         .buf = priv->pll_desc->initdata + 1,
723                         .len = priv->pll_desc->initdata[0] };
724
725                 int result;
726                 if (fe->ops.i2c_gate_ctrl)
727                         fe->ops.i2c_gate_ctrl(fe, 1);
728                 if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
729                         return result;
730                 }
731                 return 0;
732         }
733         /* Shouldn't be called when initdata is NULL, maybe BUG()? */
734         return -EINVAL;
735 }
736
737 static struct dvb_tuner_ops dvb_pll_tuner_ops = {
738         .release = dvb_pll_release,
739         .sleep = dvb_pll_sleep,
740         .init = dvb_pll_init,
741         .set_params = dvb_pll_set_params,
742         .calc_regs = dvb_pll_calc_regs,
743         .get_frequency = dvb_pll_get_frequency,
744         .get_bandwidth = dvb_pll_get_bandwidth,
745 };
746
747 struct dvb_frontend *dvb_pll_attach(struct dvb_frontend *fe, int pll_addr,
748                                     struct i2c_adapter *i2c,
749                                     unsigned int pll_desc_id)
750 {
751         u8 b1 [] = { 0 };
752         struct i2c_msg msg = { .addr = pll_addr, .flags = I2C_M_RD,
753                                .buf = b1, .len = 1 };
754         struct dvb_pll_priv *priv = NULL;
755         int ret;
756         struct dvb_pll_desc *desc;
757
758         BUG_ON(pll_desc_id < 1 || pll_desc_id >= ARRAY_SIZE(pll_list));
759
760         desc = pll_list[pll_desc_id];
761
762         if (i2c != NULL) {
763                 if (fe->ops.i2c_gate_ctrl)
764                         fe->ops.i2c_gate_ctrl(fe, 1);
765
766                 ret = i2c_transfer (i2c, &msg, 1);
767                 if (ret != 1)
768                         return NULL;
769                 if (fe->ops.i2c_gate_ctrl)
770                              fe->ops.i2c_gate_ctrl(fe, 0);
771         }
772
773         priv = kzalloc(sizeof(struct dvb_pll_priv), GFP_KERNEL);
774         if (priv == NULL)
775                 return NULL;
776
777         priv->pll_i2c_address = pll_addr;
778         priv->i2c = i2c;
779         priv->pll_desc = desc;
780
781         memcpy(&fe->ops.tuner_ops, &dvb_pll_tuner_ops,
782                sizeof(struct dvb_tuner_ops));
783
784         strncpy(fe->ops.tuner_ops.info.name, desc->name,
785                 sizeof(fe->ops.tuner_ops.info.name));
786         fe->ops.tuner_ops.info.frequency_min = desc->min;
787         fe->ops.tuner_ops.info.frequency_min = desc->max;
788         if (!desc->initdata)
789                 fe->ops.tuner_ops.init = NULL;
790         if (!desc->sleepdata)
791                 fe->ops.tuner_ops.sleep = NULL;
792
793         fe->tuner_priv = priv;
794         return fe;
795 }
796 EXPORT_SYMBOL(dvb_pll_attach);
797
798 MODULE_DESCRIPTION("dvb pll library");
799 MODULE_AUTHOR("Gerd Knorr");
800 MODULE_LICENSE("GPL");