Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab...
[linux-2.6.git] / 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/slab.h>
22 #include <linux/module.h>
23 #include <linux/dvb/frontend.h>
24 #include <asm/types.h>
25
26 #include "dvb-pll.h"
27
28 struct dvb_pll_priv {
29         /* pll number */
30         int nr;
31
32         /* i2c details */
33         int pll_i2c_address;
34         struct i2c_adapter *i2c;
35
36         /* the PLL descriptor */
37         struct dvb_pll_desc *pll_desc;
38
39         /* cached frequency/bandwidth */
40         u32 frequency;
41         u32 bandwidth;
42 };
43
44 #define DVB_PLL_MAX 64
45
46 static unsigned int dvb_pll_devcount;
47
48 static int debug;
49 module_param(debug, int, 0644);
50 MODULE_PARM_DESC(debug, "enable verbose debug messages");
51
52 static unsigned int id[DVB_PLL_MAX] =
53         { [ 0 ... (DVB_PLL_MAX-1) ] = DVB_PLL_UNDEFINED };
54 module_param_array(id, int, NULL, 0644);
55 MODULE_PARM_DESC(id, "force pll id to use (DEBUG ONLY)");
56
57 /* ----------------------------------------------------------- */
58
59 struct dvb_pll_desc {
60         char *name;
61         u32  min;
62         u32  max;
63         u32  iffreq;
64         void (*set)(struct dvb_frontend *fe, u8 *buf);
65         u8   *initdata;
66         u8   *initdata2;
67         u8   *sleepdata;
68         int  count;
69         struct {
70                 u32 limit;
71                 u32 stepsize;
72                 u8  config;
73                 u8  cb;
74         } entries[12];
75 };
76
77 /* ----------------------------------------------------------- */
78 /* descriptions                                                */
79
80 static struct dvb_pll_desc dvb_pll_thomson_dtt7579 = {
81         .name  = "Thomson dtt7579",
82         .min   = 177000000,
83         .max   = 858000000,
84         .iffreq= 36166667,
85         .sleepdata = (u8[]){ 2, 0xb4, 0x03 },
86         .count = 4,
87         .entries = {
88                 {  443250000, 166667, 0xb4, 0x02 },
89                 {  542000000, 166667, 0xb4, 0x08 },
90                 {  771000000, 166667, 0xbc, 0x08 },
91                 {  999999999, 166667, 0xf4, 0x08 },
92         },
93 };
94
95 static void thomson_dtt759x_bw(struct dvb_frontend *fe, u8 *buf)
96 {
97         u32 bw = fe->dtv_property_cache.bandwidth_hz;
98         if (bw == 7000000)
99                 buf[3] |= 0x10;
100 }
101
102 static struct dvb_pll_desc dvb_pll_thomson_dtt759x = {
103         .name  = "Thomson dtt759x",
104         .min   = 177000000,
105         .max   = 896000000,
106         .set   = thomson_dtt759x_bw,
107         .iffreq= 36166667,
108         .sleepdata = (u8[]){ 2, 0x84, 0x03 },
109         .count = 5,
110         .entries = {
111                 {  264000000, 166667, 0xb4, 0x02 },
112                 {  470000000, 166667, 0xbc, 0x02 },
113                 {  735000000, 166667, 0xbc, 0x08 },
114                 {  835000000, 166667, 0xf4, 0x08 },
115                 {  999999999, 166667, 0xfc, 0x08 },
116         },
117 };
118
119 static struct dvb_pll_desc dvb_pll_lg_z201 = {
120         .name  = "LG z201",
121         .min   = 174000000,
122         .max   = 862000000,
123         .iffreq= 36166667,
124         .sleepdata = (u8[]){ 2, 0xbc, 0x03 },
125         .count = 5,
126         .entries = {
127                 {  157500000, 166667, 0xbc, 0x01 },
128                 {  443250000, 166667, 0xbc, 0x02 },
129                 {  542000000, 166667, 0xbc, 0x04 },
130                 {  830000000, 166667, 0xf4, 0x04 },
131                 {  999999999, 166667, 0xfc, 0x04 },
132         },
133 };
134
135 static struct dvb_pll_desc dvb_pll_unknown_1 = {
136         .name  = "unknown 1", /* used by dntv live dvb-t */
137         .min   = 174000000,
138         .max   = 862000000,
139         .iffreq= 36166667,
140         .count = 9,
141         .entries = {
142                 {  150000000, 166667, 0xb4, 0x01 },
143                 {  173000000, 166667, 0xbc, 0x01 },
144                 {  250000000, 166667, 0xb4, 0x02 },
145                 {  400000000, 166667, 0xbc, 0x02 },
146                 {  420000000, 166667, 0xf4, 0x02 },
147                 {  470000000, 166667, 0xfc, 0x02 },
148                 {  600000000, 166667, 0xbc, 0x08 },
149                 {  730000000, 166667, 0xf4, 0x08 },
150                 {  999999999, 166667, 0xfc, 0x08 },
151         },
152 };
153
154 /* Infineon TUA6010XS
155  * used in Thomson Cable Tuner
156  */
157 static struct dvb_pll_desc dvb_pll_tua6010xs = {
158         .name  = "Infineon TUA6010XS",
159         .min   =  44250000,
160         .max   = 858000000,
161         .iffreq= 36125000,
162         .count = 3,
163         .entries = {
164                 {  115750000, 62500, 0x8e, 0x03 },
165                 {  403250000, 62500, 0x8e, 0x06 },
166                 {  999999999, 62500, 0x8e, 0x85 },
167         },
168 };
169
170 /* Panasonic env57h1xd5 (some Philips PLL ?) */
171 static struct dvb_pll_desc dvb_pll_env57h1xd5 = {
172         .name  = "Panasonic ENV57H1XD5",
173         .min   =  44250000,
174         .max   = 858000000,
175         .iffreq= 36125000,
176         .count = 4,
177         .entries = {
178                 {  153000000, 166667, 0xc2, 0x41 },
179                 {  470000000, 166667, 0xc2, 0x42 },
180                 {  526000000, 166667, 0xc2, 0x84 },
181                 {  999999999, 166667, 0xc2, 0xa4 },
182         },
183 };
184
185 /* Philips TDA6650/TDA6651
186  * used in Panasonic ENV77H11D5
187  */
188 static void tda665x_bw(struct dvb_frontend *fe, u8 *buf)
189 {
190         u32 bw = fe->dtv_property_cache.bandwidth_hz;
191         if (bw == 8000000)
192                 buf[3] |= 0x08;
193 }
194
195 static struct dvb_pll_desc dvb_pll_tda665x = {
196         .name  = "Philips TDA6650/TDA6651",
197         .min   =  44250000,
198         .max   = 858000000,
199         .set   = tda665x_bw,
200         .iffreq= 36166667,
201         .initdata = (u8[]){ 4, 0x0b, 0xf5, 0x85, 0xab },
202         .count = 12,
203         .entries = {
204                 {   93834000, 166667, 0xca, 0x61 /* 011 0 0 0  01 */ },
205                 {  123834000, 166667, 0xca, 0xa1 /* 101 0 0 0  01 */ },
206                 {  161000000, 166667, 0xca, 0xa1 /* 101 0 0 0  01 */ },
207                 {  163834000, 166667, 0xca, 0xc2 /* 110 0 0 0  10 */ },
208                 {  253834000, 166667, 0xca, 0x62 /* 011 0 0 0  10 */ },
209                 {  383834000, 166667, 0xca, 0xa2 /* 101 0 0 0  10 */ },
210                 {  443834000, 166667, 0xca, 0xc2 /* 110 0 0 0  10 */ },
211                 {  444000000, 166667, 0xca, 0xc4 /* 110 0 0 1  00 */ },
212                 {  583834000, 166667, 0xca, 0x64 /* 011 0 0 1  00 */ },
213                 {  793834000, 166667, 0xca, 0xa4 /* 101 0 0 1  00 */ },
214                 {  444834000, 166667, 0xca, 0xc4 /* 110 0 0 1  00 */ },
215                 {  861000000, 166667, 0xca, 0xe4 /* 111 0 0 1  00 */ },
216         }
217 };
218
219 /* Infineon TUA6034
220  * used in LG TDTP E102P
221  */
222 static void tua6034_bw(struct dvb_frontend *fe, u8 *buf)
223 {
224         u32 bw = fe->dtv_property_cache.bandwidth_hz;
225         if (bw == 7000000)
226                 buf[3] |= 0x08;
227 }
228
229 static struct dvb_pll_desc dvb_pll_tua6034 = {
230         .name  = "Infineon TUA6034",
231         .min   =  44250000,
232         .max   = 858000000,
233         .iffreq= 36166667,
234         .count = 3,
235         .set   = tua6034_bw,
236         .entries = {
237                 {  174500000, 62500, 0xce, 0x01 },
238                 {  230000000, 62500, 0xce, 0x02 },
239                 {  999999999, 62500, 0xce, 0x04 },
240         },
241 };
242
243 /* ALPS TDED4
244  * used in Nebula-Cards and USB boxes
245  */
246 static void tded4_bw(struct dvb_frontend *fe, u8 *buf)
247 {
248         u32 bw = fe->dtv_property_cache.bandwidth_hz;
249         if (bw == 8000000)
250                 buf[3] |= 0x04;
251 }
252
253 static struct dvb_pll_desc dvb_pll_tded4 = {
254         .name = "ALPS TDED4",
255         .min = 47000000,
256         .max = 863000000,
257         .iffreq= 36166667,
258         .set   = tded4_bw,
259         .count = 4,
260         .entries = {
261                 { 153000000, 166667, 0x85, 0x01 },
262                 { 470000000, 166667, 0x85, 0x02 },
263                 { 823000000, 166667, 0x85, 0x08 },
264                 { 999999999, 166667, 0x85, 0x88 },
265         }
266 };
267
268 /* ALPS TDHU2
269  * used in AverTVHD MCE A180
270  */
271 static struct dvb_pll_desc dvb_pll_tdhu2 = {
272         .name = "ALPS TDHU2",
273         .min = 54000000,
274         .max = 864000000,
275         .iffreq= 44000000,
276         .count = 4,
277         .entries = {
278                 { 162000000, 62500, 0x85, 0x01 },
279                 { 426000000, 62500, 0x85, 0x02 },
280                 { 782000000, 62500, 0x85, 0x08 },
281                 { 999999999, 62500, 0x85, 0x88 },
282         }
283 };
284
285 /* Samsung TBMV30111IN / TBMV30712IN1
286  * used in Air2PC ATSC - 2nd generation (nxt2002)
287  */
288 static struct dvb_pll_desc dvb_pll_samsung_tbmv = {
289         .name = "Samsung TBMV30111IN / TBMV30712IN1",
290         .min = 54000000,
291         .max = 860000000,
292         .iffreq= 44000000,
293         .count = 6,
294         .entries = {
295                 { 172000000, 166667, 0xb4, 0x01 },
296                 { 214000000, 166667, 0xb4, 0x02 },
297                 { 467000000, 166667, 0xbc, 0x02 },
298                 { 721000000, 166667, 0xbc, 0x08 },
299                 { 841000000, 166667, 0xf4, 0x08 },
300                 { 999999999, 166667, 0xfc, 0x02 },
301         }
302 };
303
304 /*
305  * Philips SD1878 Tuner.
306  */
307 static struct dvb_pll_desc dvb_pll_philips_sd1878_tda8261 = {
308         .name  = "Philips SD1878",
309         .min   =  950000,
310         .max   = 2150000,
311         .iffreq= 249, /* zero-IF, offset 249 is to round up */
312         .count = 4,
313         .entries = {
314                 { 1250000, 500, 0xc4, 0x00},
315                 { 1450000, 500, 0xc4, 0x40},
316                 { 2050000, 500, 0xc4, 0x80},
317                 { 2150000, 500, 0xc4, 0xc0},
318         },
319 };
320
321 static void opera1_bw(struct dvb_frontend *fe, u8 *buf)
322 {
323         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
324         struct dvb_pll_priv *priv = fe->tuner_priv;
325         u32 b_w  = (c->symbol_rate * 27) / 32000;
326         struct i2c_msg msg = {
327                 .addr = priv->pll_i2c_address,
328                 .flags = 0,
329                 .buf = buf,
330                 .len = 4
331         };
332         int result;
333         u8 lpf;
334
335         if (fe->ops.i2c_gate_ctrl)
336                 fe->ops.i2c_gate_ctrl(fe, 1);
337
338         result = i2c_transfer(priv->i2c, &msg, 1);
339         if (result != 1)
340                 printk(KERN_ERR "%s: i2c_transfer failed:%d",
341                         __func__, result);
342
343         if (b_w <= 10000)
344                 lpf = 0xc;
345         else if (b_w <= 12000)
346                 lpf = 0x2;
347         else if (b_w <= 14000)
348                 lpf = 0xa;
349         else if (b_w <= 16000)
350                 lpf = 0x6;
351         else if (b_w <= 18000)
352                 lpf = 0xe;
353         else if (b_w <= 20000)
354                 lpf = 0x1;
355         else if (b_w <= 22000)
356                 lpf = 0x9;
357         else if (b_w <= 24000)
358                 lpf = 0x5;
359         else if (b_w <= 26000)
360                 lpf = 0xd;
361         else if (b_w <= 28000)
362                 lpf = 0x3;
363                 else
364                 lpf = 0xb;
365         buf[2] ^= 0x1c; /* Flip bits 3-5 */
366         /* Set lpf */
367         buf[2] |= ((lpf >> 2) & 0x3) << 3;
368         buf[3] |= (lpf & 0x3) << 2;
369
370         return;
371 }
372
373 static struct dvb_pll_desc dvb_pll_opera1 = {
374         .name  = "Opera Tuner",
375         .min   =  900000,
376         .max   = 2250000,
377         .initdata = (u8[]){ 4, 0x08, 0xe5, 0xe1, 0x00 },
378         .initdata2 = (u8[]){ 4, 0x08, 0xe5, 0xe5, 0x00 },
379         .iffreq= 0,
380         .set   = opera1_bw,
381         .count = 8,
382         .entries = {
383                 { 1064000, 500, 0xf9, 0xc2 },
384                 { 1169000, 500, 0xf9, 0xe2 },
385                 { 1299000, 500, 0xf9, 0x20 },
386                 { 1444000, 500, 0xf9, 0x40 },
387                 { 1606000, 500, 0xf9, 0x60 },
388                 { 1777000, 500, 0xf9, 0x80 },
389                 { 1941000, 500, 0xf9, 0xa0 },
390                 { 2250000, 500, 0xf9, 0xc0 },
391         }
392 };
393
394 static void samsung_dtos403ih102a_set(struct dvb_frontend *fe, u8 *buf)
395 {
396         struct dvb_pll_priv *priv = fe->tuner_priv;
397         struct i2c_msg msg = {
398                 .addr = priv->pll_i2c_address,
399                 .flags = 0,
400                 .buf = buf,
401                 .len = 4
402         };
403         int result;
404
405         if (fe->ops.i2c_gate_ctrl)
406                 fe->ops.i2c_gate_ctrl(fe, 1);
407
408         result = i2c_transfer(priv->i2c, &msg, 1);
409         if (result != 1)
410                 printk(KERN_ERR "%s: i2c_transfer failed:%d",
411                         __func__, result);
412
413         buf[2] = 0x9e;
414         buf[3] = 0x90;
415
416         return;
417 }
418
419 /* unknown pll used in Samsung DTOS403IH102A DVB-C tuner */
420 static struct dvb_pll_desc dvb_pll_samsung_dtos403ih102a = {
421         .name   = "Samsung DTOS403IH102A",
422         .min    =  44250000,
423         .max    = 858000000,
424         .iffreq =  36125000,
425         .count  = 8,
426         .set    = samsung_dtos403ih102a_set,
427         .entries = {
428                 { 135000000, 62500, 0xbe, 0x01 },
429                 { 177000000, 62500, 0xf6, 0x01 },
430                 { 370000000, 62500, 0xbe, 0x02 },
431                 { 450000000, 62500, 0xf6, 0x02 },
432                 { 466000000, 62500, 0xfe, 0x02 },
433                 { 538000000, 62500, 0xbe, 0x08 },
434                 { 826000000, 62500, 0xf6, 0x08 },
435                 { 999999999, 62500, 0xfe, 0x08 },
436         }
437 };
438
439 /* Samsung TDTC9251DH0 DVB-T NIM, as used on AirStar 2 */
440 static struct dvb_pll_desc dvb_pll_samsung_tdtc9251dh0 = {
441         .name   = "Samsung TDTC9251DH0",
442         .min    =  48000000,
443         .max    = 863000000,
444         .iffreq =  36166667,
445         .count  = 3,
446         .entries = {
447                 { 157500000, 166667, 0xcc, 0x09 },
448                 { 443000000, 166667, 0xcc, 0x0a },
449                 { 863000000, 166667, 0xcc, 0x08 },
450         }
451 };
452
453 /* Samsung TBDU18132 DVB-S NIM with TSA5059 PLL, used in SkyStar2 DVB-S 2.3 */
454 static struct dvb_pll_desc dvb_pll_samsung_tbdu18132 = {
455         .name = "Samsung TBDU18132",
456         .min    =  950000,
457         .max    = 2150000, /* guesses */
458         .iffreq = 0,
459         .count = 2,
460         .entries = {
461                 { 1550000, 125, 0x84, 0x82 },
462                 { 4095937, 125, 0x84, 0x80 },
463         }
464         /* TSA5059 PLL has a 17 bit divisor rather than the 15 bits supported
465          * by this driver.  The two extra bits are 0x60 in the third byte.  15
466          * bits is enough for over 4 GHz, which is enough to cover the range
467          * of this tuner.  We could use the additional divisor bits by adding
468          * more entries, e.g.
469          { 0x0ffff * 125 + 125/2, 125, 0x84 | 0x20, },
470          { 0x17fff * 125 + 125/2, 125, 0x84 | 0x40, },
471          { 0x1ffff * 125 + 125/2, 125, 0x84 | 0x60, }, */
472 };
473
474 /* Samsung TBMU24112 DVB-S NIM with SL1935 zero-IF tuner */
475 static struct dvb_pll_desc dvb_pll_samsung_tbmu24112 = {
476         .name = "Samsung TBMU24112",
477         .min    =  950000,
478         .max    = 2150000, /* guesses */
479         .iffreq = 0,
480         .count = 2,
481         .entries = {
482                 { 1500000, 125, 0x84, 0x18 },
483                 { 9999999, 125, 0x84, 0x08 },
484         }
485 };
486
487 /* Alps TDEE4 DVB-C NIM, used on Cablestar 2 */
488 /* byte 4 : 1  *   *   AGD R3  R2  R1  R0
489  * byte 5 : C1 *   RE  RTS BS4 BS3 BS2 BS1
490  * AGD = 1, R3 R2 R1 R0 = 0 1 0 1 => byte 4 = 1**10101 = 0x95
491  * Range(MHz)  C1 *  RE RTS BS4 BS3 BS2 BS1  Byte 5
492  *  47 - 153   0  *  0   0   0   0   0   1   0x01
493  * 153 - 430   0  *  0   0   0   0   1   0   0x02
494  * 430 - 822   0  *  0   0   1   0   0   0   0x08
495  * 822 - 862   1  *  0   0   1   0   0   0   0x88 */
496 static struct dvb_pll_desc dvb_pll_alps_tdee4 = {
497         .name = "ALPS TDEE4",
498         .min    =  47000000,
499         .max    = 862000000,
500         .iffreq =  36125000,
501         .count = 4,
502         .entries = {
503                 { 153000000, 62500, 0x95, 0x01 },
504                 { 430000000, 62500, 0x95, 0x02 },
505                 { 822000000, 62500, 0x95, 0x08 },
506                 { 999999999, 62500, 0x95, 0x88 },
507         }
508 };
509
510 /* ----------------------------------------------------------- */
511
512 static struct dvb_pll_desc *pll_list[] = {
513         [DVB_PLL_UNDEFINED]              = NULL,
514         [DVB_PLL_THOMSON_DTT7579]        = &dvb_pll_thomson_dtt7579,
515         [DVB_PLL_THOMSON_DTT759X]        = &dvb_pll_thomson_dtt759x,
516         [DVB_PLL_LG_Z201]                = &dvb_pll_lg_z201,
517         [DVB_PLL_UNKNOWN_1]              = &dvb_pll_unknown_1,
518         [DVB_PLL_TUA6010XS]              = &dvb_pll_tua6010xs,
519         [DVB_PLL_ENV57H1XD5]             = &dvb_pll_env57h1xd5,
520         [DVB_PLL_TUA6034]                = &dvb_pll_tua6034,
521         [DVB_PLL_TDA665X]                = &dvb_pll_tda665x,
522         [DVB_PLL_TDED4]                  = &dvb_pll_tded4,
523         [DVB_PLL_TDEE4]                  = &dvb_pll_alps_tdee4,
524         [DVB_PLL_TDHU2]                  = &dvb_pll_tdhu2,
525         [DVB_PLL_SAMSUNG_TBMV]           = &dvb_pll_samsung_tbmv,
526         [DVB_PLL_PHILIPS_SD1878_TDA8261] = &dvb_pll_philips_sd1878_tda8261,
527         [DVB_PLL_OPERA1]                 = &dvb_pll_opera1,
528         [DVB_PLL_SAMSUNG_DTOS403IH102A]  = &dvb_pll_samsung_dtos403ih102a,
529         [DVB_PLL_SAMSUNG_TDTC9251DH0]    = &dvb_pll_samsung_tdtc9251dh0,
530         [DVB_PLL_SAMSUNG_TBDU18132]      = &dvb_pll_samsung_tbdu18132,
531         [DVB_PLL_SAMSUNG_TBMU24112]      = &dvb_pll_samsung_tbmu24112,
532 };
533
534 /* ----------------------------------------------------------- */
535 /* code                                                        */
536
537 static int dvb_pll_configure(struct dvb_frontend *fe, u8 *buf,
538                              const u32 frequency)
539 {
540         struct dvb_pll_priv *priv = fe->tuner_priv;
541         struct dvb_pll_desc *desc = priv->pll_desc;
542         u32 div;
543         int i;
544
545         if (frequency && (frequency < desc->min || frequency > desc->max))
546                 return -EINVAL;
547
548         for (i = 0; i < desc->count; i++) {
549                 if (frequency > desc->entries[i].limit)
550                         continue;
551                 break;
552         }
553
554         if (debug)
555                 printk("pll: %s: freq=%d | i=%d/%d\n", desc->name,
556                        frequency, i, desc->count);
557         if (i == desc->count)
558                 return -EINVAL;
559
560         div = (frequency + desc->iffreq +
561                desc->entries[i].stepsize/2) / desc->entries[i].stepsize;
562         buf[0] = div >> 8;
563         buf[1] = div & 0xff;
564         buf[2] = desc->entries[i].config;
565         buf[3] = desc->entries[i].cb;
566
567         if (desc->set)
568                 desc->set(fe, buf);
569
570         if (debug)
571                 printk("pll: %s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
572                        desc->name, div, buf[0], buf[1], buf[2], buf[3]);
573
574         // calculate the frequency we set it to
575         return (div * desc->entries[i].stepsize) - desc->iffreq;
576 }
577
578 static int dvb_pll_release(struct dvb_frontend *fe)
579 {
580         kfree(fe->tuner_priv);
581         fe->tuner_priv = NULL;
582         return 0;
583 }
584
585 static int dvb_pll_sleep(struct dvb_frontend *fe)
586 {
587         struct dvb_pll_priv *priv = fe->tuner_priv;
588
589         if (priv->i2c == NULL)
590                 return -EINVAL;
591
592         if (priv->pll_desc->sleepdata) {
593                 struct i2c_msg msg = { .flags = 0,
594                         .addr = priv->pll_i2c_address,
595                         .buf = priv->pll_desc->sleepdata + 1,
596                         .len = priv->pll_desc->sleepdata[0] };
597
598                 int result;
599
600                 if (fe->ops.i2c_gate_ctrl)
601                         fe->ops.i2c_gate_ctrl(fe, 1);
602                 if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
603                         return result;
604                 }
605                 return 0;
606         }
607         /* Shouldn't be called when initdata is NULL, maybe BUG()? */
608         return -EINVAL;
609 }
610
611 static int dvb_pll_set_params(struct dvb_frontend *fe)
612 {
613         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
614         struct dvb_pll_priv *priv = fe->tuner_priv;
615         u8 buf[4];
616         struct i2c_msg msg =
617                 { .addr = priv->pll_i2c_address, .flags = 0,
618                   .buf = buf, .len = sizeof(buf) };
619         int result;
620         u32 frequency = 0;
621
622         if (priv->i2c == NULL)
623                 return -EINVAL;
624
625         result = dvb_pll_configure(fe, buf, c->frequency);
626         if (result < 0)
627                 return result;
628         else
629                 frequency = result;
630
631         if (fe->ops.i2c_gate_ctrl)
632                 fe->ops.i2c_gate_ctrl(fe, 1);
633         if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
634                 return result;
635         }
636
637         priv->frequency = frequency;
638         priv->bandwidth = c->bandwidth_hz;
639
640         return 0;
641 }
642
643 static int dvb_pll_calc_regs(struct dvb_frontend *fe,
644                              u8 *buf, int buf_len)
645 {
646         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
647         struct dvb_pll_priv *priv = fe->tuner_priv;
648         int result;
649         u32 frequency = 0;
650
651         if (buf_len < 5)
652                 return -EINVAL;
653
654         result = dvb_pll_configure(fe, buf + 1, c->frequency);
655         if (result < 0)
656                 return result;
657         else
658                 frequency = result;
659
660         buf[0] = priv->pll_i2c_address;
661
662         priv->frequency = frequency;
663         priv->bandwidth = c->bandwidth_hz;
664
665         return 5;
666 }
667
668 static int dvb_pll_get_frequency(struct dvb_frontend *fe, u32 *frequency)
669 {
670         struct dvb_pll_priv *priv = fe->tuner_priv;
671         *frequency = priv->frequency;
672         return 0;
673 }
674
675 static int dvb_pll_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
676 {
677         struct dvb_pll_priv *priv = fe->tuner_priv;
678         *bandwidth = priv->bandwidth;
679         return 0;
680 }
681
682 static int dvb_pll_init(struct dvb_frontend *fe)
683 {
684         struct dvb_pll_priv *priv = fe->tuner_priv;
685
686         if (priv->i2c == NULL)
687                 return -EINVAL;
688
689         if (priv->pll_desc->initdata) {
690                 struct i2c_msg msg = { .flags = 0,
691                         .addr = priv->pll_i2c_address,
692                         .buf = priv->pll_desc->initdata + 1,
693                         .len = priv->pll_desc->initdata[0] };
694
695                 int result;
696                 if (fe->ops.i2c_gate_ctrl)
697                         fe->ops.i2c_gate_ctrl(fe, 1);
698                 result = i2c_transfer(priv->i2c, &msg, 1);
699                 if (result != 1)
700                         return result;
701                 if (priv->pll_desc->initdata2) {
702                         msg.buf = priv->pll_desc->initdata2 + 1;
703                         msg.len = priv->pll_desc->initdata2[0];
704                         if (fe->ops.i2c_gate_ctrl)
705                                 fe->ops.i2c_gate_ctrl(fe, 1);
706                         result = i2c_transfer(priv->i2c, &msg, 1);
707                         if (result != 1)
708                                 return result;
709                 }
710                 return 0;
711         }
712         /* Shouldn't be called when initdata is NULL, maybe BUG()? */
713         return -EINVAL;
714 }
715
716 static struct dvb_tuner_ops dvb_pll_tuner_ops = {
717         .release = dvb_pll_release,
718         .sleep = dvb_pll_sleep,
719         .init = dvb_pll_init,
720         .set_params = dvb_pll_set_params,
721         .calc_regs = dvb_pll_calc_regs,
722         .get_frequency = dvb_pll_get_frequency,
723         .get_bandwidth = dvb_pll_get_bandwidth,
724 };
725
726 struct dvb_frontend *dvb_pll_attach(struct dvb_frontend *fe, int pll_addr,
727                                     struct i2c_adapter *i2c,
728                                     unsigned int pll_desc_id)
729 {
730         u8 b1 [] = { 0 };
731         struct i2c_msg msg = { .addr = pll_addr, .flags = I2C_M_RD,
732                                .buf = b1, .len = 1 };
733         struct dvb_pll_priv *priv = NULL;
734         int ret;
735         struct dvb_pll_desc *desc;
736
737         if ((id[dvb_pll_devcount] > DVB_PLL_UNDEFINED) &&
738             (id[dvb_pll_devcount] < ARRAY_SIZE(pll_list)))
739                 pll_desc_id = id[dvb_pll_devcount];
740
741         BUG_ON(pll_desc_id < 1 || pll_desc_id >= ARRAY_SIZE(pll_list));
742
743         desc = pll_list[pll_desc_id];
744
745         if (i2c != NULL) {
746                 if (fe->ops.i2c_gate_ctrl)
747                         fe->ops.i2c_gate_ctrl(fe, 1);
748
749                 ret = i2c_transfer (i2c, &msg, 1);
750                 if (ret != 1)
751                         return NULL;
752                 if (fe->ops.i2c_gate_ctrl)
753                              fe->ops.i2c_gate_ctrl(fe, 0);
754         }
755
756         priv = kzalloc(sizeof(struct dvb_pll_priv), GFP_KERNEL);
757         if (priv == NULL)
758                 return NULL;
759
760         priv->pll_i2c_address = pll_addr;
761         priv->i2c = i2c;
762         priv->pll_desc = desc;
763         priv->nr = dvb_pll_devcount++;
764
765         memcpy(&fe->ops.tuner_ops, &dvb_pll_tuner_ops,
766                sizeof(struct dvb_tuner_ops));
767
768         strncpy(fe->ops.tuner_ops.info.name, desc->name,
769                 sizeof(fe->ops.tuner_ops.info.name));
770         fe->ops.tuner_ops.info.frequency_min = desc->min;
771         fe->ops.tuner_ops.info.frequency_max = desc->max;
772         if (!desc->initdata)
773                 fe->ops.tuner_ops.init = NULL;
774         if (!desc->sleepdata)
775                 fe->ops.tuner_ops.sleep = NULL;
776
777         fe->tuner_priv = priv;
778
779         if ((debug) || (id[priv->nr] == pll_desc_id)) {
780                 printk("dvb-pll[%d]", priv->nr);
781                 if (i2c != NULL)
782                         printk(" %d-%04x", i2c_adapter_id(i2c), pll_addr);
783                 printk(": id# %d (%s) attached, %s\n", pll_desc_id, desc->name,
784                        id[priv->nr] == pll_desc_id ?
785                                 "insmod option" : "autodetected");
786         }
787
788         return fe;
789 }
790 EXPORT_SYMBOL(dvb_pll_attach);
791
792 MODULE_DESCRIPTION("dvb pll library");
793 MODULE_AUTHOR("Gerd Knorr");
794 MODULE_LICENSE("GPL");