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-rw-r--r--drivers/media/video/mt20xx.c670
1 files changed, 0 insertions, 670 deletions
diff --git a/drivers/media/video/mt20xx.c b/drivers/media/video/mt20xx.c
deleted file mode 100644
index fbcb28233737..000000000000
--- a/drivers/media/video/mt20xx.c
+++ /dev/null
@@ -1,670 +0,0 @@
1/*
2 * i2c tv tuner chip device driver
3 * controls microtune tuners, mt2032 + mt2050 at the moment.
4 *
5 * This "mt20xx" module was split apart from the original "tuner" module.
6 */
7#include <linux/delay.h>
8#include <linux/i2c.h>
9#include <linux/videodev.h>
10#include "tuner-i2c.h"
11#include "mt20xx.h"
12
13static int debug;
14module_param(debug, int, 0644);
15MODULE_PARM_DESC(debug, "enable verbose debug messages");
16
17/* ---------------------------------------------------------------------- */
18
19static unsigned int optimize_vco = 1;
20module_param(optimize_vco, int, 0644);
21
22static unsigned int tv_antenna = 1;
23module_param(tv_antenna, int, 0644);
24
25static unsigned int radio_antenna;
26module_param(radio_antenna, int, 0644);
27
28/* ---------------------------------------------------------------------- */
29
30#define MT2032 0x04
31#define MT2030 0x06
32#define MT2040 0x07
33#define MT2050 0x42
34
35static char *microtune_part[] = {
36 [ MT2030 ] = "MT2030",
37 [ MT2032 ] = "MT2032",
38 [ MT2040 ] = "MT2040",
39 [ MT2050 ] = "MT2050",
40};
41
42struct microtune_priv {
43 struct tuner_i2c_props i2c_props;
44
45 unsigned int xogc;
46 //unsigned int radio_if2;
47
48 u32 frequency;
49};
50
51static int microtune_release(struct dvb_frontend *fe)
52{
53 kfree(fe->tuner_priv);
54 fe->tuner_priv = NULL;
55
56 return 0;
57}
58
59static int microtune_get_frequency(struct dvb_frontend *fe, u32 *frequency)
60{
61 struct microtune_priv *priv = fe->tuner_priv;
62 *frequency = priv->frequency;
63 return 0;
64}
65
66// IsSpurInBand()?
67static int mt2032_spurcheck(struct dvb_frontend *fe,
68 int f1, int f2, int spectrum_from,int spectrum_to)
69{
70 struct microtune_priv *priv = fe->tuner_priv;
71 int n1=1,n2,f;
72
73 f1=f1/1000; //scale to kHz to avoid 32bit overflows
74 f2=f2/1000;
75 spectrum_from/=1000;
76 spectrum_to/=1000;
77
78 tuner_dbg("spurcheck f1=%d f2=%d from=%d to=%d\n",
79 f1,f2,spectrum_from,spectrum_to);
80
81 do {
82 n2=-n1;
83 f=n1*(f1-f2);
84 do {
85 n2--;
86 f=f-f2;
87 tuner_dbg("spurtest n1=%d n2=%d ftest=%d\n",n1,n2,f);
88
89 if( (f>spectrum_from) && (f<spectrum_to))
90 tuner_dbg("mt2032 spurcheck triggered: %d\n",n1);
91 } while ( (f>(f2-spectrum_to)) || (n2>-5));
92 n1++;
93 } while (n1<5);
94
95 return 1;
96}
97
98static int mt2032_compute_freq(struct dvb_frontend *fe,
99 unsigned int rfin,
100 unsigned int if1, unsigned int if2,
101 unsigned int spectrum_from,
102 unsigned int spectrum_to,
103 unsigned char *buf,
104 int *ret_sel,
105 unsigned int xogc) //all in Hz
106{
107 struct microtune_priv *priv = fe->tuner_priv;
108 unsigned int fref,lo1,lo1n,lo1a,s,sel,lo1freq, desired_lo1,
109 desired_lo2,lo2,lo2n,lo2a,lo2num,lo2freq;
110
111 fref= 5250 *1000; //5.25MHz
112 desired_lo1=rfin+if1;
113
114 lo1=(2*(desired_lo1/1000)+(fref/1000)) / (2*fref/1000);
115 lo1n=lo1/8;
116 lo1a=lo1-(lo1n*8);
117
118 s=rfin/1000/1000+1090;
119
120 if(optimize_vco) {
121 if(s>1890) sel=0;
122 else if(s>1720) sel=1;
123 else if(s>1530) sel=2;
124 else if(s>1370) sel=3;
125 else sel=4; // >1090
126 }
127 else {
128 if(s>1790) sel=0; // <1958
129 else if(s>1617) sel=1;
130 else if(s>1449) sel=2;
131 else if(s>1291) sel=3;
132 else sel=4; // >1090
133 }
134 *ret_sel=sel;
135
136 lo1freq=(lo1a+8*lo1n)*fref;
137
138 tuner_dbg("mt2032: rfin=%d lo1=%d lo1n=%d lo1a=%d sel=%d, lo1freq=%d\n",
139 rfin,lo1,lo1n,lo1a,sel,lo1freq);
140
141 desired_lo2=lo1freq-rfin-if2;
142 lo2=(desired_lo2)/fref;
143 lo2n=lo2/8;
144 lo2a=lo2-(lo2n*8);
145 lo2num=((desired_lo2/1000)%(fref/1000))* 3780/(fref/1000); //scale to fit in 32bit arith
146 lo2freq=(lo2a+8*lo2n)*fref + lo2num*(fref/1000)/3780*1000;
147
148 tuner_dbg("mt2032: rfin=%d lo2=%d lo2n=%d lo2a=%d num=%d lo2freq=%d\n",
149 rfin,lo2,lo2n,lo2a,lo2num,lo2freq);
150
151 if(lo1a<0 || lo1a>7 || lo1n<17 ||lo1n>48 || lo2a<0 ||lo2a >7 ||lo2n<17 || lo2n>30) {
152 tuner_info("mt2032: frequency parameters out of range: %d %d %d %d\n",
153 lo1a, lo1n, lo2a,lo2n);
154 return(-1);
155 }
156
157 mt2032_spurcheck(fe, lo1freq, desired_lo2, spectrum_from, spectrum_to);
158 // should recalculate lo1 (one step up/down)
159
160 // set up MT2032 register map for transfer over i2c
161 buf[0]=lo1n-1;
162 buf[1]=lo1a | (sel<<4);
163 buf[2]=0x86; // LOGC
164 buf[3]=0x0f; //reserved
165 buf[4]=0x1f;
166 buf[5]=(lo2n-1) | (lo2a<<5);
167 if(rfin >400*1000*1000)
168 buf[6]=0xe4;
169 else
170 buf[6]=0xf4; // set PKEN per rev 1.2
171 buf[7]=8+xogc;
172 buf[8]=0xc3; //reserved
173 buf[9]=0x4e; //reserved
174 buf[10]=0xec; //reserved
175 buf[11]=(lo2num&0xff);
176 buf[12]=(lo2num>>8) |0x80; // Lo2RST
177
178 return 0;
179}
180
181static int mt2032_check_lo_lock(struct dvb_frontend *fe)
182{
183 struct microtune_priv *priv = fe->tuner_priv;
184 int try,lock=0;
185 unsigned char buf[2];
186
187 for(try=0;try<10;try++) {
188 buf[0]=0x0e;
189 tuner_i2c_xfer_send(&priv->i2c_props,buf,1);
190 tuner_i2c_xfer_recv(&priv->i2c_props,buf,1);
191 tuner_dbg("mt2032 Reg.E=0x%02x\n",buf[0]);
192 lock=buf[0] &0x06;
193
194 if (lock==6)
195 break;
196
197 tuner_dbg("mt2032: pll wait 1ms for lock (0x%2x)\n",buf[0]);
198 udelay(1000);
199 }
200 return lock;
201}
202
203static int mt2032_optimize_vco(struct dvb_frontend *fe,int sel,int lock)
204{
205 struct microtune_priv *priv = fe->tuner_priv;
206 unsigned char buf[2];
207 int tad1;
208
209 buf[0]=0x0f;
210 tuner_i2c_xfer_send(&priv->i2c_props,buf,1);
211 tuner_i2c_xfer_recv(&priv->i2c_props,buf,1);
212 tuner_dbg("mt2032 Reg.F=0x%02x\n",buf[0]);
213 tad1=buf[0]&0x07;
214
215 if(tad1 ==0) return lock;
216 if(tad1 ==1) return lock;
217
218 if(tad1==2) {
219 if(sel==0)
220 return lock;
221 else sel--;
222 }
223 else {
224 if(sel<4)
225 sel++;
226 else
227 return lock;
228 }
229
230 tuner_dbg("mt2032 optimize_vco: sel=%d\n",sel);
231
232 buf[0]=0x0f;
233 buf[1]=sel;
234 tuner_i2c_xfer_send(&priv->i2c_props,buf,2);
235 lock=mt2032_check_lo_lock(fe);
236 return lock;
237}
238
239
240static void mt2032_set_if_freq(struct dvb_frontend *fe, unsigned int rfin,
241 unsigned int if1, unsigned int if2,
242 unsigned int from, unsigned int to)
243{
244 unsigned char buf[21];
245 int lint_try,ret,sel,lock=0;
246 struct microtune_priv *priv = fe->tuner_priv;
247
248 tuner_dbg("mt2032_set_if_freq rfin=%d if1=%d if2=%d from=%d to=%d\n",
249 rfin,if1,if2,from,to);
250
251 buf[0]=0;
252 ret=tuner_i2c_xfer_send(&priv->i2c_props,buf,1);
253 tuner_i2c_xfer_recv(&priv->i2c_props,buf,21);
254
255 buf[0]=0;
256 ret=mt2032_compute_freq(fe,rfin,if1,if2,from,to,&buf[1],&sel,priv->xogc);
257 if (ret<0)
258 return;
259
260 // send only the relevant registers per Rev. 1.2
261 buf[0]=0;
262 ret=tuner_i2c_xfer_send(&priv->i2c_props,buf,4);
263 buf[5]=5;
264 ret=tuner_i2c_xfer_send(&priv->i2c_props,buf+5,4);
265 buf[11]=11;
266 ret=tuner_i2c_xfer_send(&priv->i2c_props,buf+11,3);
267 if(ret!=3)
268 tuner_warn("i2c i/o error: rc == %d (should be 3)\n",ret);
269
270 // wait for PLLs to lock (per manual), retry LINT if not.
271 for(lint_try=0; lint_try<2; lint_try++) {
272 lock=mt2032_check_lo_lock(fe);
273
274 if(optimize_vco)
275 lock=mt2032_optimize_vco(fe,sel,lock);
276 if(lock==6) break;
277
278 tuner_dbg("mt2032: re-init PLLs by LINT\n");
279 buf[0]=7;
280 buf[1]=0x80 +8+priv->xogc; // set LINT to re-init PLLs
281 tuner_i2c_xfer_send(&priv->i2c_props,buf,2);
282 mdelay(10);
283 buf[1]=8+priv->xogc;
284 tuner_i2c_xfer_send(&priv->i2c_props,buf,2);
285 }
286
287 if (lock!=6)
288 tuner_warn("MT2032 Fatal Error: PLLs didn't lock.\n");
289
290 buf[0]=2;
291 buf[1]=0x20; // LOGC for optimal phase noise
292 ret=tuner_i2c_xfer_send(&priv->i2c_props,buf,2);
293 if (ret!=2)
294 tuner_warn("i2c i/o error: rc == %d (should be 2)\n",ret);
295}
296
297
298static int mt2032_set_tv_freq(struct dvb_frontend *fe,
299 struct analog_parameters *params)
300{
301 int if2,from,to;
302
303 // signal bandwidth and picture carrier
304 if (params->std & V4L2_STD_525_60) {
305 // NTSC
306 from = 40750*1000;
307 to = 46750*1000;
308 if2 = 45750*1000;
309 } else {
310 // PAL
311 from = 32900*1000;
312 to = 39900*1000;
313 if2 = 38900*1000;
314 }
315
316 mt2032_set_if_freq(fe, params->frequency*62500,
317 1090*1000*1000, if2, from, to);
318
319 return 0;
320}
321
322static int mt2032_set_radio_freq(struct dvb_frontend *fe,
323 struct analog_parameters *params)
324{
325 struct microtune_priv *priv = fe->tuner_priv;
326 int if2;
327
328 if (params->std & V4L2_STD_525_60) {
329 tuner_dbg("pinnacle ntsc\n");
330 if2 = 41300 * 1000;
331 } else {
332 tuner_dbg("pinnacle pal\n");
333 if2 = 33300 * 1000;
334 }
335
336 // per Manual for FM tuning: first if center freq. 1085 MHz
337 mt2032_set_if_freq(fe, params->frequency * 125 / 2,
338 1085*1000*1000,if2,if2,if2);
339
340 return 0;
341}
342
343static int mt2032_set_params(struct dvb_frontend *fe,
344 struct analog_parameters *params)
345{
346 struct microtune_priv *priv = fe->tuner_priv;
347 int ret = -EINVAL;
348
349 switch (params->mode) {
350 case V4L2_TUNER_RADIO:
351 ret = mt2032_set_radio_freq(fe, params);
352 priv->frequency = params->frequency * 125 / 2;
353 break;
354 case V4L2_TUNER_ANALOG_TV:
355 case V4L2_TUNER_DIGITAL_TV:
356 ret = mt2032_set_tv_freq(fe, params);
357 priv->frequency = params->frequency * 62500;
358 break;
359 }
360
361 return ret;
362}
363
364static struct dvb_tuner_ops mt2032_tuner_ops = {
365 .set_analog_params = mt2032_set_params,
366 .release = microtune_release,
367 .get_frequency = microtune_get_frequency,
368};
369
370// Initialization as described in "MT203x Programming Procedures", Rev 1.2, Feb.2001
371static int mt2032_init(struct dvb_frontend *fe)
372{
373 struct microtune_priv *priv = fe->tuner_priv;
374 unsigned char buf[21];
375 int ret,xogc,xok=0;
376
377 // Initialize Registers per spec.
378 buf[1]=2; // Index to register 2
379 buf[2]=0xff;
380 buf[3]=0x0f;
381 buf[4]=0x1f;
382 ret=tuner_i2c_xfer_send(&priv->i2c_props,buf+1,4);
383
384 buf[5]=6; // Index register 6
385 buf[6]=0xe4;
386 buf[7]=0x8f;
387 buf[8]=0xc3;
388 buf[9]=0x4e;
389 buf[10]=0xec;
390 ret=tuner_i2c_xfer_send(&priv->i2c_props,buf+5,6);
391
392 buf[12]=13; // Index register 13
393 buf[13]=0x32;
394 ret=tuner_i2c_xfer_send(&priv->i2c_props,buf+12,2);
395
396 // Adjust XOGC (register 7), wait for XOK
397 xogc=7;
398 do {
399 tuner_dbg("mt2032: xogc = 0x%02x\n",xogc&0x07);
400 mdelay(10);
401 buf[0]=0x0e;
402 tuner_i2c_xfer_send(&priv->i2c_props,buf,1);
403 tuner_i2c_xfer_recv(&priv->i2c_props,buf,1);
404 xok=buf[0]&0x01;
405 tuner_dbg("mt2032: xok = 0x%02x\n",xok);
406 if (xok == 1) break;
407
408 xogc--;
409 tuner_dbg("mt2032: xogc = 0x%02x\n",xogc&0x07);
410 if (xogc == 3) {
411 xogc=4; // min. 4 per spec
412 break;
413 }
414 buf[0]=0x07;
415 buf[1]=0x88 + xogc;
416 ret=tuner_i2c_xfer_send(&priv->i2c_props,buf,2);
417 if (ret!=2)
418 tuner_warn("i2c i/o error: rc == %d (should be 2)\n",ret);
419 } while (xok != 1 );
420 priv->xogc=xogc;
421
422 memcpy(&fe->ops.tuner_ops, &mt2032_tuner_ops, sizeof(struct dvb_tuner_ops));
423
424 return(1);
425}
426
427static void mt2050_set_antenna(struct dvb_frontend *fe, unsigned char antenna)
428{
429 struct microtune_priv *priv = fe->tuner_priv;
430 unsigned char buf[2];
431 int ret;
432
433 buf[0] = 6;
434 buf[1] = antenna ? 0x11 : 0x10;
435 ret=tuner_i2c_xfer_send(&priv->i2c_props,buf,2);
436 tuner_dbg("mt2050: enabled antenna connector %d\n", antenna);
437}
438
439static void mt2050_set_if_freq(struct dvb_frontend *fe,unsigned int freq, unsigned int if2)
440{
441 struct microtune_priv *priv = fe->tuner_priv;
442 unsigned int if1=1218*1000*1000;
443 unsigned int f_lo1,f_lo2,lo1,lo2,f_lo1_modulo,f_lo2_modulo,num1,num2,div1a,div1b,div2a,div2b;
444 int ret;
445 unsigned char buf[6];
446
447 tuner_dbg("mt2050_set_if_freq freq=%d if1=%d if2=%d\n",
448 freq,if1,if2);
449
450 f_lo1=freq+if1;
451 f_lo1=(f_lo1/1000000)*1000000;
452
453 f_lo2=f_lo1-freq-if2;
454 f_lo2=(f_lo2/50000)*50000;
455
456 lo1=f_lo1/4000000;
457 lo2=f_lo2/4000000;
458
459 f_lo1_modulo= f_lo1-(lo1*4000000);
460 f_lo2_modulo= f_lo2-(lo2*4000000);
461
462 num1=4*f_lo1_modulo/4000000;
463 num2=4096*(f_lo2_modulo/1000)/4000;
464
465 // todo spurchecks
466
467 div1a=(lo1/12)-1;
468 div1b=lo1-(div1a+1)*12;
469
470 div2a=(lo2/8)-1;
471 div2b=lo2-(div2a+1)*8;
472
473 if (debug > 1) {
474 tuner_dbg("lo1 lo2 = %d %d\n", lo1, lo2);
475 tuner_dbg("num1 num2 div1a div1b div2a div2b= %x %x %x %x %x %x\n",
476 num1,num2,div1a,div1b,div2a,div2b);
477 }
478
479 buf[0]=1;
480 buf[1]= 4*div1b + num1;
481 if(freq<275*1000*1000) buf[1] = buf[1]|0x80;
482
483 buf[2]=div1a;
484 buf[3]=32*div2b + num2/256;
485 buf[4]=num2-(num2/256)*256;
486 buf[5]=div2a;
487 if(num2!=0) buf[5]=buf[5]|0x40;
488
489 if (debug > 1) {
490 int i;
491 tuner_dbg("bufs is: ");
492 for(i=0;i<6;i++)
493 printk("%x ",buf[i]);
494 printk("\n");
495 }
496
497 ret=tuner_i2c_xfer_send(&priv->i2c_props,buf,6);
498 if (ret!=6)
499 tuner_warn("i2c i/o error: rc == %d (should be 6)\n",ret);
500}
501
502static int mt2050_set_tv_freq(struct dvb_frontend *fe,
503 struct analog_parameters *params)
504{
505 unsigned int if2;
506
507 if (params->std & V4L2_STD_525_60) {
508 // NTSC
509 if2 = 45750*1000;
510 } else {
511 // PAL
512 if2 = 38900*1000;
513 }
514 if (V4L2_TUNER_DIGITAL_TV == params->mode) {
515 // DVB (pinnacle 300i)
516 if2 = 36150*1000;
517 }
518 mt2050_set_if_freq(fe, params->frequency*62500, if2);
519 mt2050_set_antenna(fe, tv_antenna);
520
521 return 0;
522}
523
524static int mt2050_set_radio_freq(struct dvb_frontend *fe,
525 struct analog_parameters *params)
526{
527 struct microtune_priv *priv = fe->tuner_priv;
528 int if2;
529
530 if (params->std & V4L2_STD_525_60) {
531 tuner_dbg("pinnacle ntsc\n");
532 if2 = 41300 * 1000;
533 } else {
534 tuner_dbg("pinnacle pal\n");
535 if2 = 33300 * 1000;
536 }
537
538 mt2050_set_if_freq(fe, params->frequency * 125 / 2, if2);
539 mt2050_set_antenna(fe, radio_antenna);
540
541 return 0;
542}
543
544static int mt2050_set_params(struct dvb_frontend *fe,
545 struct analog_parameters *params)
546{
547 struct microtune_priv *priv = fe->tuner_priv;
548 int ret = -EINVAL;
549
550 switch (params->mode) {
551 case V4L2_TUNER_RADIO:
552 ret = mt2050_set_radio_freq(fe, params);
553 priv->frequency = params->frequency * 125 / 2;
554 break;
555 case V4L2_TUNER_ANALOG_TV:
556 case V4L2_TUNER_DIGITAL_TV:
557 ret = mt2050_set_tv_freq(fe, params);
558 priv->frequency = params->frequency * 62500;
559 break;
560 }
561
562 return ret;
563}
564
565static struct dvb_tuner_ops mt2050_tuner_ops = {
566 .set_analog_params = mt2050_set_params,
567 .release = microtune_release,
568 .get_frequency = microtune_get_frequency,
569};
570
571static int mt2050_init(struct dvb_frontend *fe)
572{
573 struct microtune_priv *priv = fe->tuner_priv;
574 unsigned char buf[2];
575 int ret;
576
577 buf[0]=6;
578 buf[1]=0x10;
579 ret=tuner_i2c_xfer_send(&priv->i2c_props,buf,2); // power
580
581 buf[0]=0x0f;
582 buf[1]=0x0f;
583 ret=tuner_i2c_xfer_send(&priv->i2c_props,buf,2); // m1lo
584
585 buf[0]=0x0d;
586 ret=tuner_i2c_xfer_send(&priv->i2c_props,buf,1);
587 tuner_i2c_xfer_recv(&priv->i2c_props,buf,1);
588
589 tuner_dbg("mt2050: sro is %x\n",buf[0]);
590
591 memcpy(&fe->ops.tuner_ops, &mt2050_tuner_ops, sizeof(struct dvb_tuner_ops));
592
593 return 0;
594}
595
596struct dvb_frontend *microtune_attach(struct dvb_frontend *fe,
597 struct i2c_adapter* i2c_adap,
598 u8 i2c_addr)
599{
600 struct microtune_priv *priv = NULL;
601 char *name;
602 unsigned char buf[21];
603 int company_code;
604
605 priv = kzalloc(sizeof(struct microtune_priv), GFP_KERNEL);
606 if (priv == NULL)
607 return NULL;
608 fe->tuner_priv = priv;
609
610 priv->i2c_props.addr = i2c_addr;
611 priv->i2c_props.adap = i2c_adap;
612 priv->i2c_props.name = "mt20xx";
613
614 //priv->radio_if2 = 10700 * 1000; /* 10.7MHz - FM radio */
615
616 memset(buf,0,sizeof(buf));
617
618 name = "unknown";
619
620 tuner_i2c_xfer_send(&priv->i2c_props,buf,1);
621 tuner_i2c_xfer_recv(&priv->i2c_props,buf,21);
622 if (debug) {
623 int i;
624 tuner_dbg("MT20xx hexdump:");
625 for(i=0;i<21;i++) {
626 printk(" %02x",buf[i]);
627 if(((i+1)%8)==0) printk(" ");
628 }
629 printk("\n");
630 }
631 company_code = buf[0x11] << 8 | buf[0x12];
632 tuner_info("microtune: companycode=%04x part=%02x rev=%02x\n",
633 company_code,buf[0x13],buf[0x14]);
634
635
636 if (buf[0x13] < ARRAY_SIZE(microtune_part) &&
637 NULL != microtune_part[buf[0x13]])
638 name = microtune_part[buf[0x13]];
639 switch (buf[0x13]) {
640 case MT2032:
641 mt2032_init(fe);
642 break;
643 case MT2050:
644 mt2050_init(fe);
645 break;
646 default:
647 tuner_info("microtune %s found, not (yet?) supported, sorry :-/\n",
648 name);
649 return NULL;
650 }
651
652 strlcpy(fe->ops.tuner_ops.info.name, name,
653 sizeof(fe->ops.tuner_ops.info.name));
654 tuner_info("microtune %s found, OK\n",name);
655 return fe;
656}
657
658EXPORT_SYMBOL_GPL(microtune_attach);
659
660MODULE_DESCRIPTION("Microtune tuner driver");
661MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
662MODULE_LICENSE("GPL");
663
664/*
665 * Overrides for Emacs so that we follow Linus's tabbing style.
666 * ---------------------------------------------------------------------------
667 * Local variables:
668 * c-basic-offset: 8
669 * End:
670 */
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-29 09:40:04 -0500