1 #include <linux/module.h>
2 #include <linux/kernel.h>
3 #include <linux/sched.h>
4 #include <linux/string.h>
5 #include <linux/timer.h>
6 #include <linux/delay.h>
7 #include <linux/errno.h>
8 #include <linux/slab.h>
9 #include <linux/poll.h>
10 #include <linux/i2c.h>
11 #include <linux/types.h>
12 #include <linux/videodev.h>
13 #include <linux/init.h>
14
15 #include "tuner.h"
16 #include "audiochip.h"
17 #include "i2c-compat.h"
18 # define strlcpy(dest,src,len) strncpy(dest,src,(len)-1)
19
20 /* Addresses to scan */
21 static unsigned short normal_i2c[] = {I2C_CLIENT_END};
22 static unsigned short normal_i2c_range[] = {0x60,0x6f,I2C_CLIENT_END};
23 I2C_CLIENT_INSMOD;
24
25 #define UNSET (-1U)
26
27 /* insmod options */
28 static unsigned int debug = 0;
29 static unsigned int type = UNSET;
30 static unsigned int addr = 0;
31 static char *pal = "b";
32 static unsigned int tv_range[2] = { 44, 958 };
33 static unsigned int radio_range[2] = { 65, 108 };
34 MODULE_PARM(debug,"i");
35 MODULE_PARM(type,"i");
36 MODULE_PARM(addr,"i");
37 MODULE_PARM(tv_range,"2i");
38 MODULE_PARM(radio_range,"2i");
39 MODULE_PARM(pal,"s");
40
41 #define optimize_vco 1
42
43 MODULE_DESCRIPTION("device driver for various TV and TV+FM radio tuners");
44 MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
45 MODULE_LICENSE("GPL");
46
47 static int this_adap;
48 #define dprintk if (debug) printk
49
50 struct tuner
51 {
52 unsigned int type; /* chip type */
53 unsigned int freq; /* keep track of the current settings */
54 unsigned int std;
55
56 unsigned int radio;
57 unsigned int mode; /* current norm for multi-norm tuners */
58
59 // only for MT2032
60 unsigned int xogc;
61 unsigned int radio_if2;
62 };
63
64 static struct i2c_driver driver;
65 static struct i2c_client client_template;
66
67 /* ---------------------------------------------------------------------- */
68
69 /* tv standard selection for Temic 4046 FM5
70 this value takes the low bits of control byte 2
71 from datasheet Rev.01, Feb.00
72 standard BG I L L2 D
73 picture IF 38.9 38.9 38.9 33.95 38.9
74 sound 1 33.4 32.9 32.4 40.45 32.4
75 sound 2 33.16
76 NICAM 33.05 32.348 33.05 33.05
77 */
78 #define TEMIC_SET_PAL_I 0x05
79 #define TEMIC_SET_PAL_DK 0x09
80 #define TEMIC_SET_PAL_L 0x0a // SECAM ?
81 #define TEMIC_SET_PAL_L2 0x0b // change IF !
82 #define TEMIC_SET_PAL_BG 0x0c
83
84 /* tv tuner system standard selection for Philips FQ1216ME
85 this value takes the low bits of control byte 2
86 from datasheet "1999 Nov 16" (supersedes "1999 Mar 23")
87 standard BG DK I L L`
88 picture carrier 38.90 38.90 38.90 38.90 33.95
89 colour 34.47 34.47 34.47 34.47 38.38
90 sound 1 33.40 32.40 32.90 32.40 40.45
91 sound 2 33.16 - - - -
92 NICAM 33.05 33.05 32.35 33.05 39.80
93 */
94 #define PHILIPS_SET_PAL_I 0x01 /* Bit 2 always zero !*/
95 #define PHILIPS_SET_PAL_BGDK 0x09
96 #define PHILIPS_SET_PAL_L2 0x0a
97 #define PHILIPS_SET_PAL_L 0x0b
98
99 /* system switching for Philips FI1216MF MK2
100 from datasheet "1996 Jul 09",
101 standard BG L L'
102 picture carrier 38.90 38.90 33.95
103 colour 34.47 34.37 38.38
104 sound 1 33.40 32.40 40.45
105 sound 2 33.16 - -
106 NICAM 33.05 33.05 39.80
107 */
108 #define PHILIPS_MF_SET_BG 0x01 /* Bit 2 must be zero, Bit 3 is system output */
109 #define PHILIPS_MF_SET_PAL_L 0x03 // France
110 #define PHILIPS_MF_SET_PAL_L2 0x02 // L'
111
112
113 /* ---------------------------------------------------------------------- */
114
115 struct tunertype
116 {
117 char *name;
118 unsigned char Vendor;
119 unsigned char Type;
120
121 unsigned short thresh1; /* band switch VHF_LO <=> VHF_HI */
122 unsigned short thresh2; /* band switch VHF_HI <=> UHF */
123 unsigned char VHF_L;
124 unsigned char VHF_H;
125 unsigned char UHF;
126 unsigned char config;
127 unsigned short IFPCoff; /* 622.4=16*38.90 MHz PAL,
128 732 =16*45.75 NTSCi,
129 940 =58.75 NTSC-Japan */
130 };
131
132 /*
133 * The floats in the tuner struct are computed at compile time
134 * by gcc and cast back to integers. Thus we don't violate the
135 * "no float in kernel" rule.
136 */
137 static struct tunertype tuners[] = {
138 { "Temic PAL (4002 FH5)", TEMIC, PAL,
139 16*140.25,16*463.25,0x02,0x04,0x01,0x8e,623},
140 { "Philips PAL_I (FI1246 and compatibles)", Philips, PAL_I,
141 16*140.25,16*463.25,0xa0,0x90,0x30,0x8e,623},
142 { "Philips NTSC (FI1236,FM1236 and compatibles)", Philips, NTSC,
143 16*157.25,16*451.25,0xA0,0x90,0x30,0x8e,732},
144 { "Philips (SECAM+PAL_BG) (FI1216MF, FM1216MF, FR1216MF)", Philips, SECAM,
145 16*168.25,16*447.25,0xA7,0x97,0x37,0x8e,623},
146
147 { "NoTuner", NoTuner, NOTUNER,
148 0,0,0x00,0x00,0x00,0x00,0x00},
149 { "Philips PAL_BG (FI1216 and compatibles)", Philips, PAL,
150 16*168.25,16*447.25,0xA0,0x90,0x30,0x8e,623},
151 { "Temic NTSC (4032 FY5)", TEMIC, NTSC,
152 16*157.25,16*463.25,0x02,0x04,0x01,0x8e,732},
153 { "Temic PAL_I (4062 FY5)", TEMIC, PAL_I,
154 16*170.00,16*450.00,0x02,0x04,0x01,0x8e,623},
155
156 { "Temic NTSC (4036 FY5)", TEMIC, NTSC,
157 16*157.25,16*463.25,0xa0,0x90,0x30,0x8e,732},
158 { "Alps HSBH1", TEMIC, NTSC,
159 16*137.25,16*385.25,0x01,0x02,0x08,0x8e,732},
160 { "Alps TSBE1",TEMIC,PAL,
161 16*137.25,16*385.25,0x01,0x02,0x08,0x8e,732},
162 { "Alps TSBB5", Alps, PAL_I, /* tested (UK UHF) with Modulartech MM205 */
163 16*133.25,16*351.25,0x01,0x02,0x08,0x8e,632},
164
165 { "Alps TSBE5", Alps, PAL, /* untested - data sheet guess. Only IF differs. */
166 16*133.25,16*351.25,0x01,0x02,0x08,0x8e,622},
167 { "Alps TSBC5", Alps, PAL, /* untested - data sheet guess. Only IF differs. */
168 16*133.25,16*351.25,0x01,0x02,0x08,0x8e,608},
169 { "Temic PAL_BG (4006FH5)", TEMIC, PAL,
170 16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
171 { "Alps TSCH6",Alps,NTSC,
172 16*137.25,16*385.25,0x14,0x12,0x11,0x8e,732},
173
174 { "Temic PAL_DK (4016 FY5)",TEMIC,PAL,
175 16*168.25,16*456.25,0xa0,0x90,0x30,0x8e,623},
176 { "Philips NTSC_M (MK2)",Philips,NTSC,
177 16*160.00,16*454.00,0xa0,0x90,0x30,0x8e,732},
178 { "Temic PAL_I (4066 FY5)", TEMIC, PAL_I,
179 16*169.00, 16*454.00, 0xa0,0x90,0x30,0x8e,623},
180 { "Temic PAL* auto (4006 FN5)", TEMIC, PAL,
181 16*169.00, 16*454.00, 0xa0,0x90,0x30,0x8e,623},
182
183 { "Temic PAL_BG (4009 FR5) or PAL_I (4069 FR5)", TEMIC, PAL,
184 16*141.00, 16*464.00, 0xa0,0x90,0x30,0x8e,623},
185 { "Temic NTSC (4039 FR5)", TEMIC, NTSC,
186 16*158.00, 16*453.00, 0xa0,0x90,0x30,0x8e,732},
187 { "Temic PAL/SECAM multi (4046 FM5)", TEMIC, PAL,
188 16*169.00, 16*454.00, 0xa0,0x90,0x30,0x8e,623},
189 { "Philips PAL_DK (FI1256 and compatibles)", Philips, PAL,
190 16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
191
192 { "Philips PAL/SECAM multi (FQ1216ME)", Philips, PAL,
193 16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
194 { "LG PAL_I+FM (TAPC-I001D)", LGINNOTEK, PAL_I,
195 16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
196 { "LG PAL_I (TAPC-I701D)", LGINNOTEK, PAL_I,
197 16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
198 { "LG NTSC+FM (TPI8NSR01F)", LGINNOTEK, NTSC,
199 16*210.00,16*497.00,0xa0,0x90,0x30,0x8e,732},
200
201 { "LG PAL_BG+FM (TPI8PSB01D)", LGINNOTEK, PAL,
202 16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
203 { "LG PAL_BG (TPI8PSB11D)", LGINNOTEK, PAL,
204 16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
205 { "Temic PAL* auto + FM (4009 FN5)", TEMIC, PAL,
206 16*141.00, 16*464.00, 0xa0,0x90,0x30,0x8e,623},
207 { "SHARP NTSC_JP (2U5JF5540)", SHARP, NTSC, /* 940=16*58.75 NTSC@Japan */
208 16*137.25,16*317.25,0x01,0x02,0x08,0x8e,732 }, // Corrected to NTSC=732 (was:940)
209
210 { "Samsung PAL TCPM9091PD27", Samsung, PAL, /* from sourceforge v3tv */
211 16*169,16*464,0xA0,0x90,0x30,0x8e,623},
212 { "MT2032 universal", Microtune,PAL|NTSC,
213 0,0,0,0,0,0,0},
214 { "Temic PAL_BG (4106 FH5)", TEMIC, PAL,
215 16*141.00, 16*464.00, 0xa0,0x90,0x30,0x8e,623},
216 { "Temic PAL_DK/SECAM_L (4012 FY5)", TEMIC, PAL,
217 16*140.25, 16*463.25, 0x02,0x04,0x01,0x8e,623},
218
219 { "Temic NTSC (4136 FY5)", TEMIC, NTSC,
220 16*158.00, 16*453.00, 0xa0,0x90,0x30,0x8e,732},
221 { "LG PAL (newer TAPC series)", LGINNOTEK, PAL,
222 16*170.00, 16*450.00, 0x01,0x02,0x08,0x8e,623},
223 { "Philips PAL/SECAM multi (FM1216ME MK3)", Philips, PAL,
224 16*160.00,16*442.00,0x01,0x02,0x04,0x8e,623 },
225 { "LG NTSC (newer TAPC series)", LGINNOTEK, NTSC,
226 16*170.00, 16*450.00, 0x01,0x02,0x08,0x8e,732},
227
228 { "HITACHI V7-J180AT", HITACHI, NTSC,
229 16*170.00, 16*450.00, 0x01,0x02,0x00,0x8e,940 },
230 { "Philips PAL_MK (FI1216 MK)", Philips, PAL,
231 16*140.25,16*463.25,0x01,0xc2,0xcf,0x8e,623},
232 };
233 #define TUNERS ARRAY_SIZE(tuners)
234
235 /* ---------------------------------------------------------------------- */
236
tuner_getstatus(struct i2c_client * c)237 static int tuner_getstatus(struct i2c_client *c)
238 {
239 unsigned char byte;
240
241 struct tuner *t = i2c_get_clientdata(c);
242
243 if (t->type == TUNER_MT2032)
244 return 0;
245
246 if (1 != i2c_master_recv(c,&byte,1))
247 return 0;
248 return byte;
249 }
250
251 #define TUNER_POR 0x80
252 #define TUNER_FL 0x40
253 #define TUNER_MODE 0x38
254 #define TUNER_AFC 0x07
255
256 #define TUNER_STEREO 0x10 /* radio mode */
257 #define TUNER_SIGNAL 0x07 /* radio mode */
258
tuner_signal(struct i2c_client * c)259 static int tuner_signal(struct i2c_client *c)
260 {
261 return (tuner_getstatus(c) & TUNER_SIGNAL)<<13;
262 }
263
tuner_stereo(struct i2c_client * c)264 static int tuner_stereo(struct i2c_client *c)
265 {
266 return (tuner_getstatus (c) & TUNER_STEREO);
267 }
268
269 #if 0 /* unused */
270 static int tuner_islocked (struct i2c_client *c)
271 {
272 return (tuner_getstatus (c) & TUNER_FL);
273 }
274
275 static int tuner_afcstatus (struct i2c_client *c)
276 {
277 return (tuner_getstatus (c) & TUNER_AFC) - 2;
278 }
279
280 static int tuner_mode (struct i2c_client *c)
281 {
282 return (tuner_getstatus (c) & TUNER_MODE) >> 3;
283 }
284 #endif
285
286 // Initalization as described in "MT203x Programming Procedures", Rev 1.2, Feb.2001
mt2032_init(struct i2c_client * c)287 static int mt2032_init(struct i2c_client *c)
288 {
289 unsigned char buf[21];
290 int ret,xogc,xok=0;
291 struct tuner *t = i2c_get_clientdata(c);
292
293 buf[0]=0;
294 ret=i2c_master_send(c,buf,1);
295 i2c_master_recv(c,buf,21);
296
297 printk("MT2032: Companycode=%02x%02x Part=%02x Revision=%02x\n",
298 buf[0x11],buf[0x12],buf[0x13],buf[0x14]);
299
300 if(debug) {
301 int i;
302 printk("MT2032 hexdump:\n");
303 for(i=0;i<21;i++) {
304 printk(" %02x",buf[i]);
305 if(((i+1)%8)==0) printk(" ");
306 if(((i+1)%16)==0) printk("\n ");
307 }
308 printk("\n ");
309 }
310 // Look for MT2032 id:
311 // part= 0x04(MT2032), 0x06(MT2030), 0x07(MT2040)
312 if((buf[0x11] != 0x4d) || (buf[0x12] != 0x54) || (buf[0x13] != 0x04)) {
313 printk("not a MT2032.\n");
314 return 0;
315 }
316
317
318 // Initialize Registers per spec.
319 buf[1]=2; // Index to register 2
320 buf[2]=0xff;
321 buf[3]=0x0f;
322 buf[4]=0x1f;
323 ret=i2c_master_send(c,buf+1,4);
324
325 buf[5]=6; // Index register 6
326 buf[6]=0xe4;
327 buf[7]=0x8f;
328 buf[8]=0xc3;
329 buf[9]=0x4e;
330 buf[10]=0xec;
331 ret=i2c_master_send(c,buf+5,6);
332
333 buf[12]=13; // Index register 13
334 buf[13]=0x32;
335 ret=i2c_master_send(c,buf+12,2);
336
337 // Adjust XOGC (register 7), wait for XOK
338 xogc=7;
339 do {
340 dprintk("mt2032: xogc = 0x%02x\n",xogc&0x07);
341 mdelay(10);
342 buf[0]=0x0e;
343 i2c_master_send(c,buf,1);
344 i2c_master_recv(c,buf,1);
345 xok=buf[0]&0x01;
346 dprintk("mt2032: xok = 0x%02x\n",xok);
347 if (xok == 1) break;
348
349 xogc--;
350 dprintk("mt2032: xogc = 0x%02x\n",xogc&0x07);
351 if (xogc == 3) {
352 xogc=4; // min. 4 per spec
353 break;
354 }
355 buf[0]=0x07;
356 buf[1]=0x88 + xogc;
357 ret=i2c_master_send(c,buf,2);
358 if (ret!=2)
359 printk("mt2032_init failed with %d\n",ret);
360 } while (xok != 1 );
361 t->xogc=xogc;
362
363 return(1);
364 }
365
366
367 // IsSpurInBand()?
mt2032_spurcheck(int f1,int f2,int spectrum_from,int spectrum_to)368 static int mt2032_spurcheck(int f1, int f2, int spectrum_from,int spectrum_to)
369 {
370 int n1=1,n2,f;
371
372 f1=f1/1000; //scale to kHz to avoid 32bit overflows
373 f2=f2/1000;
374 spectrum_from/=1000;
375 spectrum_to/=1000;
376
377 dprintk("spurcheck f1=%d f2=%d from=%d to=%d\n",f1,f2,spectrum_from,spectrum_to);
378
379 do {
380 n2=-n1;
381 f=n1*(f1-f2);
382 do {
383 n2--;
384 f=f-f2;
385 dprintk(" spurtest n1=%d n2=%d ftest=%d\n",n1,n2,f);
386
387 if( (f>spectrum_from) && (f<spectrum_to))
388 printk("mt2032 spurcheck triggered: %d\n",n1);
389 } while ( (f>(f2-spectrum_to)) || (n2>-5));
390 n1++;
391 } while (n1<5);
392
393 return 1;
394 }
395
mt2032_compute_freq(unsigned int rfin,unsigned int if1,unsigned int if2,unsigned int spectrum_from,unsigned int spectrum_to,unsigned char * buf,int * ret_sel,unsigned int xogc)396 static int mt2032_compute_freq(unsigned int rfin,
397 unsigned int if1, unsigned int if2,
398 unsigned int spectrum_from,
399 unsigned int spectrum_to,
400 unsigned char *buf,
401 int *ret_sel,
402 unsigned int xogc) //all in Hz
403 {
404 unsigned int fref,lo1,lo1n,lo1a,s,sel,lo1freq, desired_lo1,
405 desired_lo2,lo2,lo2n,lo2a,lo2num,lo2freq;
406
407 fref= 5250 *1000; //5.25MHz
408 desired_lo1=rfin+if1;
409
410 lo1=(2*(desired_lo1/1000)+(fref/1000)) / (2*fref/1000);
411 lo1n=lo1/8;
412 lo1a=lo1-(lo1n*8);
413
414 s=rfin/1000/1000+1090;
415
416 if(optimize_vco) {
417 if(s>1890) sel=0;
418 else if(s>1720) sel=1;
419 else if(s>1530) sel=2;
420 else if(s>1370) sel=3;
421 else sel=4; // >1090
422 }
423 else {
424 if(s>1790) sel=0; // <1958
425 else if(s>1617) sel=1;
426 else if(s>1449) sel=2;
427 else if(s>1291) sel=3;
428 else sel=4; // >1090
429 }
430 *ret_sel=sel;
431
432 lo1freq=(lo1a+8*lo1n)*fref;
433
434 dprintk("mt2032: rfin=%d lo1=%d lo1n=%d lo1a=%d sel=%d, lo1freq=%d\n",
435 rfin,lo1,lo1n,lo1a,sel,lo1freq);
436
437 desired_lo2=lo1freq-rfin-if2;
438 lo2=(desired_lo2)/fref;
439 lo2n=lo2/8;
440 lo2a=lo2-(lo2n*8);
441 lo2num=((desired_lo2/1000)%(fref/1000))* 3780/(fref/1000); //scale to fit in 32bit arith
442 lo2freq=(lo2a+8*lo2n)*fref + lo2num*(fref/1000)/3780*1000;
443
444 dprintk("mt2032: rfin=%d lo2=%d lo2n=%d lo2a=%d num=%d lo2freq=%d\n",
445 rfin,lo2,lo2n,lo2a,lo2num,lo2freq);
446
447 if(lo1a<0 || lo1a>7 || lo1n<17 ||lo1n>48 || lo2a<0 ||lo2a >7 ||lo2n<17 || lo2n>30) {
448 printk("mt2032: frequency parameters out of range: %d %d %d %d\n",
449 lo1a, lo1n, lo2a,lo2n);
450 return(-1);
451 }
452
453 mt2032_spurcheck(lo1freq, desired_lo2, spectrum_from, spectrum_to);
454 // should recalculate lo1 (one step up/down)
455
456 // set up MT2032 register map for transfer over i2c
457 buf[0]=lo1n-1;
458 buf[1]=lo1a | (sel<<4);
459 buf[2]=0x86; // LOGC
460 buf[3]=0x0f; //reserved
461 buf[4]=0x1f;
462 buf[5]=(lo2n-1) | (lo2a<<5);
463 if(rfin >400*1000*1000)
464 buf[6]=0xe4;
465 else
466 buf[6]=0xf4; // set PKEN per rev 1.2
467 buf[7]=8+xogc;
468 buf[8]=0xc3; //reserved
469 buf[9]=0x4e; //reserved
470 buf[10]=0xec; //reserved
471 buf[11]=(lo2num&0xff);
472 buf[12]=(lo2num>>8) |0x80; // Lo2RST
473
474 return 0;
475 }
476
mt2032_check_lo_lock(struct i2c_client * c)477 static int mt2032_check_lo_lock(struct i2c_client *c)
478 {
479 int try,lock=0;
480 unsigned char buf[2];
481 for(try=0;try<10;try++) {
482 buf[0]=0x0e;
483 i2c_master_send(c,buf,1);
484 i2c_master_recv(c,buf,1);
485 dprintk("mt2032 Reg.E=0x%02x\n",buf[0]);
486 lock=buf[0] &0x06;
487
488 if (lock==6)
489 break;
490
491 dprintk("mt2032: pll wait 1ms for lock (0x%2x)\n",buf[0]);
492 udelay(1000);
493 }
494 return lock;
495 }
496
mt2032_optimize_vco(struct i2c_client * c,int sel,int lock)497 static int mt2032_optimize_vco(struct i2c_client *c,int sel,int lock)
498 {
499 unsigned char buf[2];
500 int tad1;
501
502 buf[0]=0x0f;
503 i2c_master_send(c,buf,1);
504 i2c_master_recv(c,buf,1);
505 dprintk("mt2032 Reg.F=0x%02x\n",buf[0]);
506 tad1=buf[0]&0x07;
507
508 if(tad1 ==0) return lock;
509 if(tad1 ==1) return lock;
510
511 if(tad1==2) {
512 if(sel==0)
513 return lock;
514 else sel--;
515 }
516 else {
517 if(sel<4)
518 sel++;
519 else
520 return lock;
521 }
522
523 dprintk("mt2032 optimize_vco: sel=%d\n",sel);
524
525 buf[0]=0x0f;
526 buf[1]=sel;
527 i2c_master_send(c,buf,2);
528 lock=mt2032_check_lo_lock(c);
529 return lock;
530 }
531
532
mt2032_set_if_freq(struct i2c_client * c,unsigned int rfin,unsigned int if1,unsigned int if2,unsigned int from,unsigned int to)533 static void mt2032_set_if_freq(struct i2c_client *c, unsigned int rfin,
534 unsigned int if1, unsigned int if2,
535 unsigned int from, unsigned int to)
536 {
537 unsigned char buf[21];
538 int lint_try,ret,sel,lock=0;
539 struct tuner *t = i2c_get_clientdata(c);
540
541 dprintk("mt2032_set_if_freq rfin=%d if1=%d if2=%d from=%d to=%d\n",rfin,if1,if2,from,to);
542
543 buf[0]=0;
544 ret=i2c_master_send(c,buf,1);
545 i2c_master_recv(c,buf,21);
546
547 buf[0]=0;
548 ret=mt2032_compute_freq(rfin,if1,if2,from,to,&buf[1],&sel,t->xogc);
549 if (ret<0)
550 return;
551
552 // send only the relevant registers per Rev. 1.2
553 buf[0]=0;
554 ret=i2c_master_send(c,buf,4);
555 buf[5]=5;
556 ret=i2c_master_send(c,buf+5,4);
557 buf[11]=11;
558 ret=i2c_master_send(c,buf+11,3);
559 if(ret!=3)
560 printk("mt2032_set_if_freq failed with %d\n",ret);
561
562 // wait for PLLs to lock (per manual), retry LINT if not.
563 for(lint_try=0; lint_try<2; lint_try++) {
564 lock=mt2032_check_lo_lock(c);
565
566 if(optimize_vco)
567 lock=mt2032_optimize_vco(c,sel,lock);
568 if(lock==6) break;
569
570 printk("mt2032: re-init PLLs by LINT\n");
571 buf[0]=7;
572 buf[1]=0x80 +8+t->xogc; // set LINT to re-init PLLs
573 i2c_master_send(c,buf,2);
574 mdelay(10);
575 buf[1]=8+t->xogc;
576 i2c_master_send(c,buf,2);
577 }
578
579 if (lock!=6)
580 printk("MT2032 Fatal Error: PLLs didn't lock.\n");
581
582 buf[0]=2;
583 buf[1]=0x20; // LOGC for optimal phase noise
584 ret=i2c_master_send(c,buf,2);
585 if (ret!=2)
586 printk("mt2032_set_if_freq2 failed with %d\n",ret);
587 }
588
589
mt2032_set_tv_freq(struct i2c_client * c,unsigned int freq,unsigned int norm)590 static void mt2032_set_tv_freq(struct i2c_client *c,
591 unsigned int freq, unsigned int norm)
592 {
593 int if2,from,to;
594
595 // signal bandwidth and picture carrier
596 if (norm==VIDEO_MODE_NTSC) {
597 from=40750*1000;
598 to=46750*1000;
599 if2=45750*1000;
600 } else {
601 // Pal
602 from=32900*1000;
603 to=39900*1000;
604 if2=38900*1000;
605 }
606
607 mt2032_set_if_freq(c, freq*62500 /* freq*1000*1000/16 */,
608 1090*1000*1000, if2, from, to);
609 }
610
611
612 // Set tuner frequency, freq in Units of 62.5kHz = 1/16MHz
set_tv_freq(struct i2c_client * c,unsigned int freq)613 static void set_tv_freq(struct i2c_client *c, unsigned int freq)
614 {
615 u8 config;
616 u16 div;
617 struct tunertype *tun;
618 struct tuner *t = i2c_get_clientdata(c);
619 unsigned char buffer[4];
620 int rc;
621
622 if (t->type == UNSET) {
623 printk("tuner: tuner type not set\n");
624 return;
625 }
626 if (t->type == TUNER_MT2032) {
627 mt2032_set_tv_freq(c,freq,t->mode);
628 return;
629 }
630
631 if (freq < tv_range[0]*16 || freq > tv_range[1]*16) {
632 /* FIXME: better do that chip-specific, but
633 right now we don't have that in the config
634 struct and this way is still better than no
635 check at all */
636 printk("tuner: TV freq (%d.%02d) out of range (%d-%d)\n",
637 freq/16,freq%16*100/16,tv_range[0],tv_range[1]);
638 return;
639 }
640
641 tun=&tuners[t->type];
642 if (freq < tun->thresh1)
643 config = tun->VHF_L;
644 else if (freq < tun->thresh2)
645 config = tun->VHF_H;
646 else
647 config = tun->UHF;
648
649
650 /* tv norm specific stuff for multi-norm tuners */
651 switch (t->type) {
652 case TUNER_PHILIPS_SECAM: // FI1216MF
653 /* 0x01 -> ??? no change ??? */
654 /* 0x02 -> PAL BDGHI / SECAM L */
655 /* 0x04 -> ??? PAL others / SECAM others ??? */
656 config &= ~0x02;
657 if (t->mode == VIDEO_MODE_SECAM)
658 config |= 0x02;
659 break;
660
661 case TUNER_TEMIC_4046FM5:
662 config &= ~0x0f;
663 switch (pal[0]) {
664 case 'i':
665 case 'I':
666 config |= TEMIC_SET_PAL_I;
667 break;
668 case 'd':
669 case 'D':
670 config |= TEMIC_SET_PAL_DK;
671 break;
672 case 'l':
673 case 'L':
674 config |= TEMIC_SET_PAL_L;
675 break;
676 case 'b':
677 case 'B':
678 case 'g':
679 case 'G':
680 default:
681 config |= TEMIC_SET_PAL_BG;
682 break;
683 }
684 break;
685
686 case TUNER_PHILIPS_FQ1216ME:
687 config &= ~0x0f;
688 switch (pal[0]) {
689 case 'i':
690 case 'I':
691 config |= PHILIPS_SET_PAL_I;
692 break;
693 case 'l':
694 case 'L':
695 config |= PHILIPS_SET_PAL_L;
696 break;
697 case 'd':
698 case 'D':
699 case 'b':
700 case 'B':
701 case 'g':
702 case 'G':
703 config |= PHILIPS_SET_PAL_BGDK;
704 break;
705 }
706 break;
707 }
708
709
710 /*
711 * Philips FI1216MK2 remark from specification :
712 * for channel selection involving band switching, and to ensure
713 * smooth tuning to the desired channel without causing
714 * unnecessary charge pump action, it is recommended to consider
715 * the difference between wanted channel frequency and the
716 * current channel frequency. Unnecessary charge pump action
717 * will result in very low tuning voltage which may drive the
718 * oscillator to extreme conditions.
719 *
720 * Progfou: specification says to send config data before
721 * frequency in case (wanted frequency < current frequency).
722 */
723
724 div=freq + tun->IFPCoff;
725 if (t->type == TUNER_PHILIPS_SECAM && freq < t->freq) {
726 buffer[0] = tun->config;
727 buffer[1] = config;
728 buffer[2] = (div>>8) & 0x7f;
729 buffer[3] = div & 0xff;
730 } else {
731 buffer[0] = (div>>8) & 0x7f;
732 buffer[1] = div & 0xff;
733 buffer[2] = tun->config;
734 buffer[3] = config;
735 }
736 dprintk("tuner: tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
737 buffer[0],buffer[1],buffer[2],buffer[3]);
738
739 if (4 != (rc = i2c_master_send(c,buffer,4)))
740 printk("tuner: i2c i/o error: rc == %d (should be 4)\n",rc);
741
742 }
743
mt2032_set_radio_freq(struct i2c_client * c,unsigned int freq)744 static void mt2032_set_radio_freq(struct i2c_client *c, unsigned int freq)
745 {
746 struct tuner *t = i2c_get_clientdata(c);
747 int if2 = t->radio_if2;
748
749 // per Manual for FM tuning: first if center freq. 1085 MHz
750 mt2032_set_if_freq(c, freq*62500 /* freq*1000*1000/16 */,
751 1085*1000*1000,if2,if2,if2);
752 }
753
set_radio_freq(struct i2c_client * c,unsigned int freq)754 static void set_radio_freq(struct i2c_client *c, unsigned int freq)
755 {
756 struct tunertype *tun;
757 struct tuner *t = i2c_get_clientdata(c);
758 unsigned char buffer[4];
759 unsigned div;
760 int rc;
761
762 if (freq < radio_range[0]*16 || freq > radio_range[1]*16) {
763 printk("tuner: radio freq (%d.%02d) out of range (%d-%d)\n",
764 freq/16,freq%16*100/16,
765 radio_range[0],radio_range[1]);
766 return;
767 }
768 if (t->type == UNSET) {
769 printk("tuner: tuner type not set\n");
770 return;
771 }
772
773 if (t->type == TUNER_MT2032) {
774 mt2032_set_radio_freq(c,freq);
775 return;
776 }
777
778 tun=&tuners[t->type];
779 div = freq + (int)(16*10.7);
780 buffer[0] = (div>>8) & 0x7f;
781 buffer[1] = div & 0xff;
782 buffer[2] = tun->config;
783 switch (t->type) {
784 case TUNER_PHILIPS_FM1216ME_MK3:
785 buffer[3] = 0x19;
786 break;
787 case TUNER_LG_PAL_FM:
788 buffer[3] = 0xa5;
789 break;
790 default:
791 buffer[3] = 0xa4;
792 break;
793 }
794
795 dprintk("tuner: radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
796 buffer[0],buffer[1],buffer[2],buffer[3]);
797
798 if (4 != (rc = i2c_master_send(c,buffer,4)))
799 printk("tuner: i2c i/o error: rc == %d (should be 4)\n",rc);
800 }
801
802 /* ---------------------------------------------------------------------- */
803
tuner_attach(struct i2c_adapter * adap,int addr,unsigned short flags,int kind)804 static int tuner_attach(struct i2c_adapter *adap, int addr,
805 unsigned short flags, int kind)
806 {
807 struct tuner *t;
808 struct i2c_client *client;
809
810 if (this_adap > 0)
811 return -1;
812 this_adap++;
813
814 client_template.adapter = adap;
815 client_template.addr = addr;
816
817 printk("tuner: chip found @ 0x%x\n", addr<<1);
818
819 if (NULL == (client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL)))
820 return -ENOMEM;
821 memcpy(client,&client_template,sizeof(struct i2c_client));
822 t = kmalloc(sizeof(struct tuner),GFP_KERNEL);
823 if (NULL == t) {
824 kfree(client);
825 return -ENOMEM;
826 }
827 memset(t,0,sizeof(struct tuner));
828 i2c_set_clientdata(client, t);
829 t->type = UNSET;
830 t->radio_if2 = 10700*1000; // 10.7MHz - FM radio
831
832 if (type < TUNERS) {
833 t->type = type;
834 printk("tuner(bttv): type forced to %d (%s) [insmod]\n",t->type,tuners[t->type].name);
835 strlcpy(client->name, tuners[t->type].name, sizeof(client->name));
836 }
837 i2c_attach_client(client);
838 if (t->type == TUNER_MT2032)
839 mt2032_init(client);
840
841 MOD_INC_USE_COUNT;
842 return 0;
843 }
844
tuner_probe(struct i2c_adapter * adap)845 static int tuner_probe(struct i2c_adapter *adap)
846 {
847 if (0 != addr) {
848 normal_i2c_range[0] = addr;
849 normal_i2c_range[1] = addr;
850 }
851 this_adap = 0;
852
853 #ifdef I2C_ADAP_CLASS_TV_ANALOG
854 if (adap->class & I2C_ADAP_CLASS_TV_ANALOG)
855 return i2c_probe(adap, &addr_data, tuner_attach);
856 #else
857 switch (adap->id) {
858 case I2C_ALGO_BIT | I2C_HW_B_BT848:
859 case I2C_ALGO_BIT | I2C_HW_B_RIVA:
860 case I2C_ALGO_SAA7134:
861 case I2C_ALGO_SAA7146:
862 return i2c_probe(adap, &addr_data, tuner_attach);
863 break;
864 }
865 #endif
866 return 0;
867 }
868
tuner_detach(struct i2c_client * client)869 static int tuner_detach(struct i2c_client *client)
870 {
871 struct tuner *t = i2c_get_clientdata(client);
872
873 i2c_detach_client(client);
874 kfree(t);
875 kfree(client);
876 MOD_DEC_USE_COUNT;
877 return 0;
878 }
879
880 static int
tuner_command(struct i2c_client * client,unsigned int cmd,void * arg)881 tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
882 {
883 struct tuner *t = i2c_get_clientdata(client);
884 unsigned int *iarg = (int*)arg;
885
886 switch (cmd) {
887
888 /* --- configuration --- */
889 case TUNER_SET_TYPE:
890 if (t->type != UNSET) {
891 printk("tuner: type already set (%d)\n",t->type);
892 return 0;
893 }
894 if (*iarg >= TUNERS)
895 return 0;
896 t->type = *iarg;
897 printk("tuner: type set to %d (%s)\n",
898 t->type,tuners[t->type].name);
899 strlcpy(client->name, tuners[t->type].name, sizeof(client->name));
900 if (t->type == TUNER_MT2032)
901 mt2032_init(client);
902 break;
903 case AUDC_SET_RADIO:
904 if (!t->radio) {
905 set_tv_freq(client,400 * 16);
906 t->radio = 1;
907 }
908 break;
909 case AUDC_CONFIG_PINNACLE:
910 switch (*iarg) {
911 case 2:
912 dprintk("tuner: pinnacle pal\n");
913 t->radio_if2 = 33300 * 1000;
914 break;
915 case 3:
916 dprintk("tuner: pinnacle ntsc\n");
917 t->radio_if2 = 41300 * 1000;
918 break;
919 }
920 break;
921
922 /* --- v4l ioctls --- */
923 /* take care: bttv does userspace copying, we'll get a
924 kernel pointer here... */
925 case VIDIOCSCHAN:
926 {
927 struct video_channel *vc = arg;
928
929 t->radio = 0;
930 t->mode = vc->norm;
931 if (t->freq)
932 set_tv_freq(client,t->freq);
933 return 0;
934 }
935 case VIDIOCSFREQ:
936 {
937 unsigned long *v = arg;
938
939 if (t->radio) {
940 dprintk("tuner: radio freq set to %d.%02d\n",
941 (*iarg)/16,(*iarg)%16*100/16);
942 set_radio_freq(client,*v);
943 } else {
944 dprintk("tuner: tv freq set to %d.%02d\n",
945 (*iarg)/16,(*iarg)%16*100/16);
946 set_tv_freq(client,*v);
947 }
948 t->freq = *v;
949 return 0;
950 }
951 case VIDIOCGTUNER:
952 {
953 struct video_tuner *vt = arg;
954
955 if (t->radio)
956 vt->signal = tuner_signal(client);
957 return 0;
958 }
959 case VIDIOCGAUDIO:
960 {
961 struct video_audio *va = arg;
962 if (t->radio)
963 va->mode = (tuner_stereo(client) ? VIDEO_SOUND_STEREO : VIDEO_SOUND_MONO);
964 return 0;
965 }
966 default:
967 /* nothing */
968 break;
969 }
970
971 return 0;
972 }
973
974 /* ----------------------------------------------------------------------- */
975
976 static struct i2c_driver driver = {
977 .name = "i2c TV tuner driver",
978 .id = I2C_DRIVERID_TUNER,
979 .flags = I2C_DF_NOTIFY,
980 .attach_adapter = tuner_probe,
981 .detach_client = tuner_detach,
982 .command = tuner_command,
983 };
984 static struct i2c_client client_template =
985 {
986 I2C_DEVNAME("(tuner unset)"),
987 .flags = I2C_CLIENT_ALLOW_USE,
988 .driver = &driver,
989 };
990
tuner_init_module(void)991 static int tuner_init_module(void)
992 {
993 i2c_add_driver(&driver);
994 return 0;
995 }
996
tuner_cleanup_module(void)997 static void tuner_cleanup_module(void)
998 {
999 i2c_del_driver(&driver);
1000 }
1001
1002 module_init(tuner_init_module);
1003 module_exit(tuner_cleanup_module);
1004
1005 /*
1006 * Overrides for Emacs so that we follow Linus's tabbing style.
1007 * ---------------------------------------------------------------------------
1008 * Local variables:
1009 * c-basic-offset: 8
1010 * End:
1011 */
1012