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dvb-pll.c
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1 /*
2  * descriptions + helper functions for simple dvb plls.
3  *
4  * (c) 2004 Gerd Knorr <[email protected]> [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 void thomson_dtt7520x_bw(struct dvb_frontend *fe, u8 *buf)
120 {
121  u32 bw = fe->dtv_property_cache.bandwidth_hz;
122  if (bw == 8000000)
123  buf[3] ^= 0x10;
124 }
125 
126 static struct dvb_pll_desc dvb_pll_thomson_dtt7520x = {
127  .name = "Thomson dtt7520x",
128  .min = 185000000,
129  .max = 900000000,
130  .set = thomson_dtt7520x_bw,
131  .iffreq = 36166667,
132  .count = 7,
133  .entries = {
134  { 305000000, 166667, 0xb4, 0x12 },
135  { 405000000, 166667, 0xbc, 0x12 },
136  { 445000000, 166667, 0xbc, 0x12 },
137  { 465000000, 166667, 0xf4, 0x18 },
138  { 735000000, 166667, 0xfc, 0x18 },
139  { 835000000, 166667, 0xbc, 0x18 },
140  { 999999999, 166667, 0xfc, 0x18 },
141  },
142 };
143 
144 static struct dvb_pll_desc dvb_pll_lg_z201 = {
145  .name = "LG z201",
146  .min = 174000000,
147  .max = 862000000,
148  .iffreq= 36166667,
149  .sleepdata = (u8[]){ 2, 0xbc, 0x03 },
150  .count = 5,
151  .entries = {
152  { 157500000, 166667, 0xbc, 0x01 },
153  { 443250000, 166667, 0xbc, 0x02 },
154  { 542000000, 166667, 0xbc, 0x04 },
155  { 830000000, 166667, 0xf4, 0x04 },
156  { 999999999, 166667, 0xfc, 0x04 },
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(struct dvb_frontend *fe, u8 *buf)
214 {
215  u32 bw = fe->dtv_property_cache.bandwidth_hz;
216  if (bw == 8000000)
217  buf[3] |= 0x08;
218 }
219 
220 static struct dvb_pll_desc dvb_pll_tda665x = {
221  .name = "Philips TDA6650/TDA6651",
222  .min = 44250000,
223  .max = 858000000,
224  .set = tda665x_bw,
225  .iffreq= 36166667,
226  .initdata = (u8[]){ 4, 0x0b, 0xf5, 0x85, 0xab },
227  .count = 12,
228  .entries = {
229  { 93834000, 166667, 0xca, 0x61 /* 011 0 0 0 01 */ },
230  { 123834000, 166667, 0xca, 0xa1 /* 101 0 0 0 01 */ },
231  { 161000000, 166667, 0xca, 0xa1 /* 101 0 0 0 01 */ },
232  { 163834000, 166667, 0xca, 0xc2 /* 110 0 0 0 10 */ },
233  { 253834000, 166667, 0xca, 0x62 /* 011 0 0 0 10 */ },
234  { 383834000, 166667, 0xca, 0xa2 /* 101 0 0 0 10 */ },
235  { 443834000, 166667, 0xca, 0xc2 /* 110 0 0 0 10 */ },
236  { 444000000, 166667, 0xca, 0xc4 /* 110 0 0 1 00 */ },
237  { 583834000, 166667, 0xca, 0x64 /* 011 0 0 1 00 */ },
238  { 793834000, 166667, 0xca, 0xa4 /* 101 0 0 1 00 */ },
239  { 444834000, 166667, 0xca, 0xc4 /* 110 0 0 1 00 */ },
240  { 861000000, 166667, 0xca, 0xe4 /* 111 0 0 1 00 */ },
241  }
242 };
243 
244 /* Infineon TUA6034
245  * used in LG TDTP E102P
246  */
247 static void tua6034_bw(struct dvb_frontend *fe, u8 *buf)
248 {
249  u32 bw = fe->dtv_property_cache.bandwidth_hz;
250  if (bw == 7000000)
251  buf[3] |= 0x08;
252 }
253 
254 static struct dvb_pll_desc dvb_pll_tua6034 = {
255  .name = "Infineon TUA6034",
256  .min = 44250000,
257  .max = 858000000,
258  .iffreq= 36166667,
259  .count = 3,
260  .set = tua6034_bw,
261  .entries = {
262  { 174500000, 62500, 0xce, 0x01 },
263  { 230000000, 62500, 0xce, 0x02 },
264  { 999999999, 62500, 0xce, 0x04 },
265  },
266 };
267 
268 /* ALPS TDED4
269  * used in Nebula-Cards and USB boxes
270  */
271 static void tded4_bw(struct dvb_frontend *fe, u8 *buf)
272 {
273  u32 bw = fe->dtv_property_cache.bandwidth_hz;
274  if (bw == 8000000)
275  buf[3] |= 0x04;
276 }
277 
278 static struct dvb_pll_desc dvb_pll_tded4 = {
279  .name = "ALPS TDED4",
280  .min = 47000000,
281  .max = 863000000,
282  .iffreq= 36166667,
283  .set = tded4_bw,
284  .count = 4,
285  .entries = {
286  { 153000000, 166667, 0x85, 0x01 },
287  { 470000000, 166667, 0x85, 0x02 },
288  { 823000000, 166667, 0x85, 0x08 },
289  { 999999999, 166667, 0x85, 0x88 },
290  }
291 };
292 
293 /* ALPS TDHU2
294  * used in AverTVHD MCE A180
295  */
296 static struct dvb_pll_desc dvb_pll_tdhu2 = {
297  .name = "ALPS TDHU2",
298  .min = 54000000,
299  .max = 864000000,
300  .iffreq= 44000000,
301  .count = 4,
302  .entries = {
303  { 162000000, 62500, 0x85, 0x01 },
304  { 426000000, 62500, 0x85, 0x02 },
305  { 782000000, 62500, 0x85, 0x08 },
306  { 999999999, 62500, 0x85, 0x88 },
307  }
308 };
309 
310 /* Samsung TBMV30111IN / TBMV30712IN1
311  * used in Air2PC ATSC - 2nd generation (nxt2002)
312  */
313 static struct dvb_pll_desc dvb_pll_samsung_tbmv = {
314  .name = "Samsung TBMV30111IN / TBMV30712IN1",
315  .min = 54000000,
316  .max = 860000000,
317  .iffreq= 44000000,
318  .count = 6,
319  .entries = {
320  { 172000000, 166667, 0xb4, 0x01 },
321  { 214000000, 166667, 0xb4, 0x02 },
322  { 467000000, 166667, 0xbc, 0x02 },
323  { 721000000, 166667, 0xbc, 0x08 },
324  { 841000000, 166667, 0xf4, 0x08 },
325  { 999999999, 166667, 0xfc, 0x02 },
326  }
327 };
328 
329 /*
330  * Philips SD1878 Tuner.
331  */
332 static struct dvb_pll_desc dvb_pll_philips_sd1878_tda8261 = {
333  .name = "Philips SD1878",
334  .min = 950000,
335  .max = 2150000,
336  .iffreq= 249, /* zero-IF, offset 249 is to round up */
337  .count = 4,
338  .entries = {
339  { 1250000, 500, 0xc4, 0x00},
340  { 1450000, 500, 0xc4, 0x40},
341  { 2050000, 500, 0xc4, 0x80},
342  { 2150000, 500, 0xc4, 0xc0},
343  },
344 };
345 
346 static void opera1_bw(struct dvb_frontend *fe, u8 *buf)
347 {
348  struct dtv_frontend_properties *c = &fe->dtv_property_cache;
349  struct dvb_pll_priv *priv = fe->tuner_priv;
350  u32 b_w = (c->symbol_rate * 27) / 32000;
351  struct i2c_msg msg = {
352  .addr = priv->pll_i2c_address,
353  .flags = 0,
354  .buf = buf,
355  .len = 4
356  };
357  int result;
358  u8 lpf;
359 
360  if (fe->ops.i2c_gate_ctrl)
361  fe->ops.i2c_gate_ctrl(fe, 1);
362 
363  result = i2c_transfer(priv->i2c, &msg, 1);
364  if (result != 1)
365  printk(KERN_ERR "%s: i2c_transfer failed:%d",
366  __func__, result);
367 
368  if (b_w <= 10000)
369  lpf = 0xc;
370  else if (b_w <= 12000)
371  lpf = 0x2;
372  else if (b_w <= 14000)
373  lpf = 0xa;
374  else if (b_w <= 16000)
375  lpf = 0x6;
376  else if (b_w <= 18000)
377  lpf = 0xe;
378  else if (b_w <= 20000)
379  lpf = 0x1;
380  else if (b_w <= 22000)
381  lpf = 0x9;
382  else if (b_w <= 24000)
383  lpf = 0x5;
384  else if (b_w <= 26000)
385  lpf = 0xd;
386  else if (b_w <= 28000)
387  lpf = 0x3;
388  else
389  lpf = 0xb;
390  buf[2] ^= 0x1c; /* Flip bits 3-5 */
391  /* Set lpf */
392  buf[2] |= ((lpf >> 2) & 0x3) << 3;
393  buf[3] |= (lpf & 0x3) << 2;
394 
395  return;
396 }
397 
398 static struct dvb_pll_desc dvb_pll_opera1 = {
399  .name = "Opera Tuner",
400  .min = 900000,
401  .max = 2250000,
402  .initdata = (u8[]){ 4, 0x08, 0xe5, 0xe1, 0x00 },
403  .initdata2 = (u8[]){ 4, 0x08, 0xe5, 0xe5, 0x00 },
404  .iffreq= 0,
405  .set = opera1_bw,
406  .count = 8,
407  .entries = {
408  { 1064000, 500, 0xf9, 0xc2 },
409  { 1169000, 500, 0xf9, 0xe2 },
410  { 1299000, 500, 0xf9, 0x20 },
411  { 1444000, 500, 0xf9, 0x40 },
412  { 1606000, 500, 0xf9, 0x60 },
413  { 1777000, 500, 0xf9, 0x80 },
414  { 1941000, 500, 0xf9, 0xa0 },
415  { 2250000, 500, 0xf9, 0xc0 },
416  }
417 };
418 
419 static void samsung_dtos403ih102a_set(struct dvb_frontend *fe, u8 *buf)
420 {
421  struct dvb_pll_priv *priv = fe->tuner_priv;
422  struct i2c_msg msg = {
423  .addr = priv->pll_i2c_address,
424  .flags = 0,
425  .buf = buf,
426  .len = 4
427  };
428  int result;
429 
430  if (fe->ops.i2c_gate_ctrl)
431  fe->ops.i2c_gate_ctrl(fe, 1);
432 
433  result = i2c_transfer(priv->i2c, &msg, 1);
434  if (result != 1)
435  printk(KERN_ERR "%s: i2c_transfer failed:%d",
436  __func__, result);
437 
438  buf[2] = 0x9e;
439  buf[3] = 0x90;
440 
441  return;
442 }
443 
444 /* unknown pll used in Samsung DTOS403IH102A DVB-C tuner */
445 static struct dvb_pll_desc dvb_pll_samsung_dtos403ih102a = {
446  .name = "Samsung DTOS403IH102A",
447  .min = 44250000,
448  .max = 858000000,
449  .iffreq = 36125000,
450  .count = 8,
451  .set = samsung_dtos403ih102a_set,
452  .entries = {
453  { 135000000, 62500, 0xbe, 0x01 },
454  { 177000000, 62500, 0xf6, 0x01 },
455  { 370000000, 62500, 0xbe, 0x02 },
456  { 450000000, 62500, 0xf6, 0x02 },
457  { 466000000, 62500, 0xfe, 0x02 },
458  { 538000000, 62500, 0xbe, 0x08 },
459  { 826000000, 62500, 0xf6, 0x08 },
460  { 999999999, 62500, 0xfe, 0x08 },
461  }
462 };
463 
464 /* Samsung TDTC9251DH0 DVB-T NIM, as used on AirStar 2 */
465 static struct dvb_pll_desc dvb_pll_samsung_tdtc9251dh0 = {
466  .name = "Samsung TDTC9251DH0",
467  .min = 48000000,
468  .max = 863000000,
469  .iffreq = 36166667,
470  .count = 3,
471  .entries = {
472  { 157500000, 166667, 0xcc, 0x09 },
473  { 443000000, 166667, 0xcc, 0x0a },
474  { 863000000, 166667, 0xcc, 0x08 },
475  }
476 };
477 
478 /* Samsung TBDU18132 DVB-S NIM with TSA5059 PLL, used in SkyStar2 DVB-S 2.3 */
479 static struct dvb_pll_desc dvb_pll_samsung_tbdu18132 = {
480  .name = "Samsung TBDU18132",
481  .min = 950000,
482  .max = 2150000, /* guesses */
483  .iffreq = 0,
484  .count = 2,
485  .entries = {
486  { 1550000, 125, 0x84, 0x82 },
487  { 4095937, 125, 0x84, 0x80 },
488  }
489  /* TSA5059 PLL has a 17 bit divisor rather than the 15 bits supported
490  * by this driver. The two extra bits are 0x60 in the third byte. 15
491  * bits is enough for over 4 GHz, which is enough to cover the range
492  * of this tuner. We could use the additional divisor bits by adding
493  * more entries, e.g.
494  { 0x0ffff * 125 + 125/2, 125, 0x84 | 0x20, },
495  { 0x17fff * 125 + 125/2, 125, 0x84 | 0x40, },
496  { 0x1ffff * 125 + 125/2, 125, 0x84 | 0x60, }, */
497 };
498 
499 /* Samsung TBMU24112 DVB-S NIM with SL1935 zero-IF tuner */
500 static struct dvb_pll_desc dvb_pll_samsung_tbmu24112 = {
501  .name = "Samsung TBMU24112",
502  .min = 950000,
503  .max = 2150000, /* guesses */
504  .iffreq = 0,
505  .count = 2,
506  .entries = {
507  { 1500000, 125, 0x84, 0x18 },
508  { 9999999, 125, 0x84, 0x08 },
509  }
510 };
511 
512 /* Alps TDEE4 DVB-C NIM, used on Cablestar 2 */
513 /* byte 4 : 1 * * AGD R3 R2 R1 R0
514  * byte 5 : C1 * RE RTS BS4 BS3 BS2 BS1
515  * AGD = 1, R3 R2 R1 R0 = 0 1 0 1 => byte 4 = 1**10101 = 0x95
516  * Range(MHz) C1 * RE RTS BS4 BS3 BS2 BS1 Byte 5
517  * 47 - 153 0 * 0 0 0 0 0 1 0x01
518  * 153 - 430 0 * 0 0 0 0 1 0 0x02
519  * 430 - 822 0 * 0 0 1 0 0 0 0x08
520  * 822 - 862 1 * 0 0 1 0 0 0 0x88 */
521 static struct dvb_pll_desc dvb_pll_alps_tdee4 = {
522  .name = "ALPS TDEE4",
523  .min = 47000000,
524  .max = 862000000,
525  .iffreq = 36125000,
526  .count = 4,
527  .entries = {
528  { 153000000, 62500, 0x95, 0x01 },
529  { 430000000, 62500, 0x95, 0x02 },
530  { 822000000, 62500, 0x95, 0x08 },
531  { 999999999, 62500, 0x95, 0x88 },
532  }
533 };
534 
535 /* ----------------------------------------------------------- */
536 
537 static struct dvb_pll_desc *pll_list[] = {
538  [DVB_PLL_UNDEFINED] = NULL,
539  [DVB_PLL_THOMSON_DTT7579] = &dvb_pll_thomson_dtt7579,
540  [DVB_PLL_THOMSON_DTT759X] = &dvb_pll_thomson_dtt759x,
541  [DVB_PLL_THOMSON_DTT7520X] = &dvb_pll_thomson_dtt7520x,
542  [DVB_PLL_LG_Z201] = &dvb_pll_lg_z201,
543  [DVB_PLL_UNKNOWN_1] = &dvb_pll_unknown_1,
544  [DVB_PLL_TUA6010XS] = &dvb_pll_tua6010xs,
545  [DVB_PLL_ENV57H1XD5] = &dvb_pll_env57h1xd5,
546  [DVB_PLL_TUA6034] = &dvb_pll_tua6034,
547  [DVB_PLL_TDA665X] = &dvb_pll_tda665x,
548  [DVB_PLL_TDED4] = &dvb_pll_tded4,
549  [DVB_PLL_TDEE4] = &dvb_pll_alps_tdee4,
550  [DVB_PLL_TDHU2] = &dvb_pll_tdhu2,
551  [DVB_PLL_SAMSUNG_TBMV] = &dvb_pll_samsung_tbmv,
552  [DVB_PLL_PHILIPS_SD1878_TDA8261] = &dvb_pll_philips_sd1878_tda8261,
553  [DVB_PLL_OPERA1] = &dvb_pll_opera1,
554  [DVB_PLL_SAMSUNG_DTOS403IH102A] = &dvb_pll_samsung_dtos403ih102a,
555  [DVB_PLL_SAMSUNG_TDTC9251DH0] = &dvb_pll_samsung_tdtc9251dh0,
556  [DVB_PLL_SAMSUNG_TBDU18132] = &dvb_pll_samsung_tbdu18132,
557  [DVB_PLL_SAMSUNG_TBMU24112] = &dvb_pll_samsung_tbmu24112,
558 };
559 
560 /* ----------------------------------------------------------- */
561 /* code */
562 
563 static int dvb_pll_configure(struct dvb_frontend *fe, u8 *buf,
564  const u32 frequency)
565 {
566  struct dvb_pll_priv *priv = fe->tuner_priv;
567  struct dvb_pll_desc *desc = priv->pll_desc;
568  u32 div;
569  int i;
570 
571  if (frequency && (frequency < desc->min || frequency > desc->max))
572  return -EINVAL;
573 
574  for (i = 0; i < desc->count; i++) {
575  if (frequency > desc->entries[i].limit)
576  continue;
577  break;
578  }
579 
580  if (debug)
581  printk("pll: %s: freq=%d | i=%d/%d\n", desc->name,
582  frequency, i, desc->count);
583  if (i == desc->count)
584  return -EINVAL;
585 
586  div = (frequency + desc->iffreq +
587  desc->entries[i].stepsize/2) / desc->entries[i].stepsize;
588  buf[0] = div >> 8;
589  buf[1] = div & 0xff;
590  buf[2] = desc->entries[i].config;
591  buf[3] = desc->entries[i].cb;
592 
593  if (desc->set)
594  desc->set(fe, buf);
595 
596  if (debug)
597  printk("pll: %s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
598  desc->name, div, buf[0], buf[1], buf[2], buf[3]);
599 
600  // calculate the frequency we set it to
601  return (div * desc->entries[i].stepsize) - desc->iffreq;
602 }
603 
604 static int dvb_pll_release(struct dvb_frontend *fe)
605 {
606  kfree(fe->tuner_priv);
607  fe->tuner_priv = NULL;
608  return 0;
609 }
610 
611 static int dvb_pll_sleep(struct dvb_frontend *fe)
612 {
613  struct dvb_pll_priv *priv = fe->tuner_priv;
614 
615  if (priv->i2c == NULL)
616  return -EINVAL;
617 
618  if (priv->pll_desc->sleepdata) {
619  struct i2c_msg msg = { .flags = 0,
620  .addr = priv->pll_i2c_address,
621  .buf = priv->pll_desc->sleepdata + 1,
622  .len = priv->pll_desc->sleepdata[0] };
623 
624  int result;
625 
626  if (fe->ops.i2c_gate_ctrl)
627  fe->ops.i2c_gate_ctrl(fe, 1);
628  if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
629  return result;
630  }
631  return 0;
632  }
633  /* Shouldn't be called when initdata is NULL, maybe BUG()? */
634  return -EINVAL;
635 }
636 
637 static int dvb_pll_set_params(struct dvb_frontend *fe)
638 {
639  struct dtv_frontend_properties *c = &fe->dtv_property_cache;
640  struct dvb_pll_priv *priv = fe->tuner_priv;
641  u8 buf[4];
642  struct i2c_msg msg =
643  { .addr = priv->pll_i2c_address, .flags = 0,
644  .buf = buf, .len = sizeof(buf) };
645  int result;
646  u32 frequency = 0;
647 
648  if (priv->i2c == NULL)
649  return -EINVAL;
650 
651  result = dvb_pll_configure(fe, buf, c->frequency);
652  if (result < 0)
653  return result;
654  else
655  frequency = result;
656 
657  if (fe->ops.i2c_gate_ctrl)
658  fe->ops.i2c_gate_ctrl(fe, 1);
659  if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
660  return result;
661  }
662 
663  priv->frequency = frequency;
664  priv->bandwidth = c->bandwidth_hz;
665 
666  return 0;
667 }
668 
669 static int dvb_pll_calc_regs(struct dvb_frontend *fe,
670  u8 *buf, int buf_len)
671 {
672  struct dtv_frontend_properties *c = &fe->dtv_property_cache;
673  struct dvb_pll_priv *priv = fe->tuner_priv;
674  int result;
675  u32 frequency = 0;
676 
677  if (buf_len < 5)
678  return -EINVAL;
679 
680  result = dvb_pll_configure(fe, buf + 1, c->frequency);
681  if (result < 0)
682  return result;
683  else
684  frequency = result;
685 
686  buf[0] = priv->pll_i2c_address;
687 
688  priv->frequency = frequency;
689  priv->bandwidth = c->bandwidth_hz;
690 
691  return 5;
692 }
693 
694 static int dvb_pll_get_frequency(struct dvb_frontend *fe, u32 *frequency)
695 {
696  struct dvb_pll_priv *priv = fe->tuner_priv;
697  *frequency = priv->frequency;
698  return 0;
699 }
700 
701 static int dvb_pll_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
702 {
703  struct dvb_pll_priv *priv = fe->tuner_priv;
704  *bandwidth = priv->bandwidth;
705  return 0;
706 }
707 
708 static int dvb_pll_init(struct dvb_frontend *fe)
709 {
710  struct dvb_pll_priv *priv = fe->tuner_priv;
711 
712  if (priv->i2c == NULL)
713  return -EINVAL;
714 
715  if (priv->pll_desc->initdata) {
716  struct i2c_msg msg = { .flags = 0,
717  .addr = priv->pll_i2c_address,
718  .buf = priv->pll_desc->initdata + 1,
719  .len = priv->pll_desc->initdata[0] };
720 
721  int result;
722  if (fe->ops.i2c_gate_ctrl)
723  fe->ops.i2c_gate_ctrl(fe, 1);
724  result = i2c_transfer(priv->i2c, &msg, 1);
725  if (result != 1)
726  return result;
727  if (priv->pll_desc->initdata2) {
728  msg.buf = priv->pll_desc->initdata2 + 1;
729  msg.len = priv->pll_desc->initdata2[0];
730  if (fe->ops.i2c_gate_ctrl)
731  fe->ops.i2c_gate_ctrl(fe, 1);
732  result = i2c_transfer(priv->i2c, &msg, 1);
733  if (result != 1)
734  return result;
735  }
736  return 0;
737  }
738  /* Shouldn't be called when initdata is NULL, maybe BUG()? */
739  return -EINVAL;
740 }
741 
742 static struct dvb_tuner_ops dvb_pll_tuner_ops = {
743  .release = dvb_pll_release,
744  .sleep = dvb_pll_sleep,
745  .init = dvb_pll_init,
746  .set_params = dvb_pll_set_params,
747  .calc_regs = dvb_pll_calc_regs,
748  .get_frequency = dvb_pll_get_frequency,
749  .get_bandwidth = dvb_pll_get_bandwidth,
750 };
751 
752 struct dvb_frontend *dvb_pll_attach(struct dvb_frontend *fe, int pll_addr,
753  struct i2c_adapter *i2c,
754  unsigned int pll_desc_id)
755 {
756  u8 b1 [] = { 0 };
757  struct i2c_msg msg = { .addr = pll_addr, .flags = I2C_M_RD,
758  .buf = b1, .len = 1 };
759  struct dvb_pll_priv *priv = NULL;
760  int ret;
761  struct dvb_pll_desc *desc;
762 
763  if ((id[dvb_pll_devcount] > DVB_PLL_UNDEFINED) &&
764  (id[dvb_pll_devcount] < ARRAY_SIZE(pll_list)))
765  pll_desc_id = id[dvb_pll_devcount];
766 
767  BUG_ON(pll_desc_id < 1 || pll_desc_id >= ARRAY_SIZE(pll_list));
768 
769  desc = pll_list[pll_desc_id];
770 
771  if (i2c != NULL) {
772  if (fe->ops.i2c_gate_ctrl)
773  fe->ops.i2c_gate_ctrl(fe, 1);
774 
775  ret = i2c_transfer (i2c, &msg, 1);
776  if (ret != 1)
777  return NULL;
778  if (fe->ops.i2c_gate_ctrl)
779  fe->ops.i2c_gate_ctrl(fe, 0);
780  }
781 
782  priv = kzalloc(sizeof(struct dvb_pll_priv), GFP_KERNEL);
783  if (priv == NULL)
784  return NULL;
785 
786  priv->pll_i2c_address = pll_addr;
787  priv->i2c = i2c;
788  priv->pll_desc = desc;
789  priv->nr = dvb_pll_devcount++;
790 
791  memcpy(&fe->ops.tuner_ops, &dvb_pll_tuner_ops,
792  sizeof(struct dvb_tuner_ops));
793 
794  strncpy(fe->ops.tuner_ops.info.name, desc->name,
795  sizeof(fe->ops.tuner_ops.info.name));
796  fe->ops.tuner_ops.info.frequency_min = desc->min;
797  fe->ops.tuner_ops.info.frequency_max = desc->max;
798  if (!desc->initdata)
799  fe->ops.tuner_ops.init = NULL;
800  if (!desc->sleepdata)
801  fe->ops.tuner_ops.sleep = NULL;
802 
803  fe->tuner_priv = priv;
804 
805  if ((debug) || (id[priv->nr] == pll_desc_id)) {
806  printk("dvb-pll[%d]", priv->nr);
807  if (i2c != NULL)
808  printk(" %d-%04x", i2c_adapter_id(i2c), pll_addr);
809  printk(": id# %d (%s) attached, %s\n", pll_desc_id, desc->name,
810  id[priv->nr] == pll_desc_id ?
811  "insmod option" : "autodetected");
812  }
813 
814  return fe;
815 }
816 EXPORT_SYMBOL(dvb_pll_attach);
817 
818 MODULE_DESCRIPTION("dvb pll library");
819 MODULE_AUTHOR("Gerd Knorr");
820 MODULE_LICENSE("GPL");
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