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initial commit with v2.6.9
[linux-2.6.9-moxart.git] / drivers / media / video / tuner.c
blobbac17a3dc12e6abea3812261f850e9133139e4ca
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 <media/tuner.h>
16 #include <media/audiochip.h>
17
18 /* Addresses to scan */
19 static unsigned short normal_i2c[] = {I2C_CLIENT_END};
20 static unsigned short normal_i2c_range[] = {0x60,0x6f,I2C_CLIENT_END};
21 I2C_CLIENT_INSMOD;
22
23 #define UNSET (-1U)
24
25 /* insmod options */
26 static unsigned int debug = 0;
27 static unsigned int type = UNSET;
28 static unsigned int addr = 0;
29 static unsigned int tv_range[2] = { 44, 958 };
30 static unsigned int radio_range[2] = { 65, 108 };
31 static unsigned int tv_antenna = 1;
32 static unsigned int radio_antenna = 0;
33 MODULE_PARM(debug,"i");
34 MODULE_PARM(type,"i");
35 MODULE_PARM(addr,"i");
36 MODULE_PARM(tv_range,"2i");
37 MODULE_PARM(radio_range,"2i");
38 MODULE_PARM(tv_antenna,"i");
39 MODULE_PARM(radio_antenna,"i");
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 unsigned int type; /* chip type */
52 unsigned int freq; /* keep track of the current settings */
53 v4l2_std_id std;
54 int using_v4l2;
55
56 unsigned int radio;
57 unsigned int input;
58
59 // only for MT2032
60 unsigned int xogc;
61 unsigned int radio_if2;
62
63 void (*tv_freq)(struct i2c_client *c, unsigned int freq);
64 void (*radio_freq)(struct i2c_client *c, unsigned int freq);
65 };
66
67 static struct i2c_driver driver;
68 static struct i2c_client client_template;
69
70 /* ---------------------------------------------------------------------- */
71
72 /* tv standard selection for Temic 4046 FM5
73 this value takes the low bits of control byte 2
74 from datasheet Rev.01, Feb.00
75 standard BG I L L2 D
76 picture IF 38.9 38.9 38.9 33.95 38.9
77 sound 1 33.4 32.9 32.4 40.45 32.4
78 sound 2 33.16
79 NICAM 33.05 32.348 33.05 33.05
80 */
81 #define TEMIC_SET_PAL_I 0x05
82 #define TEMIC_SET_PAL_DK 0x09
83 #define TEMIC_SET_PAL_L 0x0a // SECAM ?
84 #define TEMIC_SET_PAL_L2 0x0b // change IF !
85 #define TEMIC_SET_PAL_BG 0x0c
86
87 /* tv tuner system standard selection for Philips FQ1216ME
88 this value takes the low bits of control byte 2
89 from datasheet "1999 Nov 16" (supersedes "1999 Mar 23")
90 standard BG DK I L L`
91 picture carrier 38.90 38.90 38.90 38.90 33.95
92 colour 34.47 34.47 34.47 34.47 38.38
93 sound 1 33.40 32.40 32.90 32.40 40.45
94 sound 2 33.16 - - - -
95 NICAM 33.05 33.05 32.35 33.05 39.80
96 */
97 #define PHILIPS_SET_PAL_I 0x01 /* Bit 2 always zero !*/
98 #define PHILIPS_SET_PAL_BGDK 0x09
99 #define PHILIPS_SET_PAL_L2 0x0a
100 #define PHILIPS_SET_PAL_L 0x0b
101
102 /* system switching for Philips FI1216MF MK2
103 from datasheet "1996 Jul 09",
104 standard BG L L'
105 picture carrier 38.90 38.90 33.95
106 colour 34.47 34.37 38.38
107 sound 1 33.40 32.40 40.45
108 sound 2 33.16 - -
109 NICAM 33.05 33.05 39.80
110 */
111 #define PHILIPS_MF_SET_BG 0x01 /* Bit 2 must be zero, Bit 3 is system output */
112 #define PHILIPS_MF_SET_PAL_L 0x03 // France
113 #define PHILIPS_MF_SET_PAL_L2 0x02 // L'
114
115
116 /* ---------------------------------------------------------------------- */
117
118 struct tunertype
119 {
120 char *name;
121 unsigned char Vendor;
122 unsigned char Type;
123
124 unsigned short thresh1; /* band switch VHF_LO <=> VHF_HI */
125 unsigned short thresh2; /* band switch VHF_HI <=> UHF */
126 unsigned char VHF_L;
127 unsigned char VHF_H;
128 unsigned char UHF;
129 unsigned char config;
130 unsigned short IFPCoff; /* 622.4=16*38.90 MHz PAL,
131 732 =16*45.75 NTSCi,
132 940 =58.75 NTSC-Japan */
133 };
134
135 /*
136 * The floats in the tuner struct are computed at compile time
137 * by gcc and cast back to integers. Thus we don't violate the
138 * "no float in kernel" rule.
139 */
140 static struct tunertype tuners[] = {
141 { "Temic PAL (4002 FH5)", TEMIC, PAL,
142 16*140.25,16*463.25,0x02,0x04,0x01,0x8e,623},
143 { "Philips PAL_I (FI1246 and compatibles)", Philips, PAL_I,
144 16*140.25,16*463.25,0xa0,0x90,0x30,0x8e,623},
145 { "Philips NTSC (FI1236,FM1236 and compatibles)", Philips, NTSC,
146 16*157.25,16*451.25,0xA0,0x90,0x30,0x8e,732},
147 { "Philips (SECAM+PAL_BG) (FI1216MF, FM1216MF, FR1216MF)", Philips, SECAM,
148 16*168.25,16*447.25,0xA7,0x97,0x37,0x8e,623},
149
150 { "NoTuner", NoTuner, NOTUNER,
151 0,0,0x00,0x00,0x00,0x00,0x00},
152 { "Philips PAL_BG (FI1216 and compatibles)", Philips, PAL,
153 16*168.25,16*447.25,0xA0,0x90,0x30,0x8e,623},
154 { "Temic NTSC (4032 FY5)", TEMIC, NTSC,
155 16*157.25,16*463.25,0x02,0x04,0x01,0x8e,732},
156 { "Temic PAL_I (4062 FY5)", TEMIC, PAL_I,
157 16*170.00,16*450.00,0x02,0x04,0x01,0x8e,623},
158
159 { "Temic NTSC (4036 FY5)", TEMIC, NTSC,
160 16*157.25,16*463.25,0xa0,0x90,0x30,0x8e,732},
161 { "Alps HSBH1", TEMIC, NTSC,
162 16*137.25,16*385.25,0x01,0x02,0x08,0x8e,732},
163 { "Alps TSBE1",TEMIC,PAL,
164 16*137.25,16*385.25,0x01,0x02,0x08,0x8e,732},
165 { "Alps TSBB5", Alps, PAL_I, /* tested (UK UHF) with Modulartech MM205 */
166 16*133.25,16*351.25,0x01,0x02,0x08,0x8e,632},
167
168 { "Alps TSBE5", Alps, PAL, /* untested - data sheet guess. Only IF differs. */
169 16*133.25,16*351.25,0x01,0x02,0x08,0x8e,622},
170 { "Alps TSBC5", Alps, PAL, /* untested - data sheet guess. Only IF differs. */
171 16*133.25,16*351.25,0x01,0x02,0x08,0x8e,608},
172 { "Temic PAL_BG (4006FH5)", TEMIC, PAL,
173 16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
174 { "Alps TSCH6",Alps,NTSC,
175 16*137.25,16*385.25,0x14,0x12,0x11,0x8e,732},
176
177 { "Temic PAL_DK (4016 FY5)",TEMIC,PAL,
178 16*168.25,16*456.25,0xa0,0x90,0x30,0x8e,623},
179 { "Philips NTSC_M (MK2)",Philips,NTSC,
180 16*160.00,16*454.00,0xa0,0x90,0x30,0x8e,732},
181 { "Temic PAL_I (4066 FY5)", TEMIC, PAL_I,
182 16*169.00, 16*454.00, 0xa0,0x90,0x30,0x8e,623},
183 { "Temic PAL* auto (4006 FN5)", TEMIC, PAL,
184 16*169.00, 16*454.00, 0xa0,0x90,0x30,0x8e,623},
185
186 { "Temic PAL_BG (4009 FR5) or PAL_I (4069 FR5)", TEMIC, PAL,
187 16*141.00, 16*464.00, 0xa0,0x90,0x30,0x8e,623},
188 { "Temic NTSC (4039 FR5)", TEMIC, NTSC,
189 16*158.00, 16*453.00, 0xa0,0x90,0x30,0x8e,732},
190 { "Temic PAL/SECAM multi (4046 FM5)", TEMIC, PAL,
191 16*169.00, 16*454.00, 0xa0,0x90,0x30,0x8e,623},
192 { "Philips PAL_DK (FI1256 and compatibles)", Philips, PAL,
193 16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
194
195 { "Philips PAL/SECAM multi (FQ1216ME)", Philips, PAL,
196 16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
197 { "LG PAL_I+FM (TAPC-I001D)", LGINNOTEK, PAL_I,
198 16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
199 { "LG PAL_I (TAPC-I701D)", LGINNOTEK, PAL_I,
200 16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
201 { "LG NTSC+FM (TPI8NSR01F)", LGINNOTEK, NTSC,
202 16*210.00,16*497.00,0xa0,0x90,0x30,0x8e,732},
203
204 { "LG PAL_BG+FM (TPI8PSB01D)", LGINNOTEK, PAL,
205 16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
206 { "LG PAL_BG (TPI8PSB11D)", LGINNOTEK, PAL,
207 16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
208 { "Temic PAL* auto + FM (4009 FN5)", TEMIC, PAL,
209 16*141.00, 16*464.00, 0xa0,0x90,0x30,0x8e,623},
210 { "SHARP NTSC_JP (2U5JF5540)", SHARP, NTSC, /* 940=16*58.75 NTSC@Japan */
211 16*137.25,16*317.25,0x01,0x02,0x08,0x8e,940 },
212
213 { "Samsung PAL TCPM9091PD27", Samsung, PAL, /* from sourceforge v3tv */
214 16*169,16*464,0xA0,0x90,0x30,0x8e,623},
215 { "MT20xx universal", Microtune,PAL|NTSC,
216 0,0,0,0,0,0,0},
217 { "Temic PAL_BG (4106 FH5)", TEMIC, PAL,
218 16*141.00, 16*464.00, 0xa0,0x90,0x30,0x8e,623},
219 { "Temic PAL_DK/SECAM_L (4012 FY5)", TEMIC, PAL,
220 16*140.25, 16*463.25, 0x02,0x04,0x01,0x8e,623},
221
222 { "Temic NTSC (4136 FY5)", TEMIC, NTSC,
223 16*158.00, 16*453.00, 0xa0,0x90,0x30,0x8e,732},
224 { "LG PAL (newer TAPC series)", LGINNOTEK, PAL,
225 16*170.00, 16*450.00, 0x01,0x02,0x08,0x8e,623},
226 { "Philips PAL/SECAM multi (FM1216ME MK3)", Philips, PAL,
227 16*160.00,16*442.00,0x01,0x02,0x04,0x8e,623 },
228 { "LG NTSC (newer TAPC series)", LGINNOTEK, NTSC,
229 16*170.00, 16*450.00, 0x01,0x02,0x08,0x8e,732},
230
231 { "HITACHI V7-J180AT", HITACHI, NTSC,
232 16*170.00, 16*450.00, 0x01,0x02,0x08,0x8e,940 },
233 { "Philips PAL_MK (FI1216 MK)", Philips, PAL,
234 16*140.25,16*463.25,0x01,0xc2,0xcf,0x8e,623},
235 { "Philips 1236D ATSC/NTSC daul in",Philips,ATSC,
236 16*157.25,16*454.00,0xa0,0x90,0x30,0x8e,732},
237 { "Philips NTSC MK3 (FM1236MK3 or FM1236/F)", Philips, NTSC,
238 16*160.00,16*442.00,0x01,0x02,0x04,0x8e,732},
239
240 { "Philips 4 in 1 (ATI TV Wonder Pro/Conexant)", Philips, NTSC,
241 16*160.00,16*442.00,0x01,0x02,0x04,0x8e,732},
242 { "Microtune 4049 FM5",Microtune,PAL,
243 16*141.00,16*464.00,0xa0,0x90,0x30,0x8e,623},
244 { "Panasonic VP27s/ENGE4324D", Panasonic, NTSC,
245 16*160.00,16*454.00,0x01,0x02,0x08,0xce,940},
246 { "LG NTSC (TAPE series)", LGINNOTEK, NTSC,
247 16*170.00, 16*450.00, 0x01,0x02,0x04,0x8e,732 },
248
249 { "Tenna TNF 8831 BGFF)", Philips, PAL,
250 16*161.25,16*463.25,0xa0,0x90,0x30,0x8e,623},
251
252 };
253 #define TUNERS ARRAY_SIZE(tuners)
254
255 /* ---------------------------------------------------------------------- */
256
257 static int tuner_getstatus(struct i2c_client *c)
258 {
259 unsigned char byte;
260
261 struct tuner *t = i2c_get_clientdata(c);
262
263 if (t->type == TUNER_MT2032)
264 return 0;
265
266 if (1 != i2c_master_recv(c,&byte,1))
267 return 0;
268 return byte;
269 }
270
271 #define TUNER_POR 0x80
272 #define TUNER_FL 0x40
273 #define TUNER_MODE 0x38
274 #define TUNER_AFC 0x07
275
276 #define TUNER_STEREO 0x10 /* radio mode */
277 #define TUNER_SIGNAL 0x07 /* radio mode */
278
279 static int tuner_signal(struct i2c_client *c)
280 {
281 return (tuner_getstatus(c) & TUNER_SIGNAL)<<13;
282 }
283
284 static int tuner_stereo(struct i2c_client *c)
285 {
286 return (tuner_getstatus (c) & TUNER_STEREO);
287 }
288
289 #if 0 /* unused */
290 static int tuner_islocked (struct i2c_client *c)
291 {
292 return (tuner_getstatus (c) & TUNER_FL);
293 }
294
295 static int tuner_afcstatus (struct i2c_client *c)
296 {
297 return (tuner_getstatus (c) & TUNER_AFC) - 2;
298 }
299
300 static int tuner_mode (struct i2c_client *c)
301 {
302 return (tuner_getstatus (c) & TUNER_MODE) >> 3;
303 }
304 #endif
305
306 /* ---------------------------------------------------------------------- */
307
308 #define MT2032 0x04
309 #define MT2030 0x06
310 #define MT2040 0x07
311 #define MT2050 0x42
312
313 static char *microtune_part[] = {
314 [ MT2030 ] = "MT2030",
315 [ MT2032 ] = "MT2032",
316 [ MT2040 ] = "MT2040",
317 [ MT2050 ] = "MT2050",
318 };
319
320 // IsSpurInBand()?
321 static int mt2032_spurcheck(int f1, int f2, int spectrum_from,int spectrum_to)
322 {
323 int n1=1,n2,f;
324
325 f1=f1/1000; //scale to kHz to avoid 32bit overflows
326 f2=f2/1000;
327 spectrum_from/=1000;
328 spectrum_to/=1000;
329
330 dprintk("spurcheck f1=%d f2=%d from=%d to=%d\n",f1,f2,spectrum_from,spectrum_to);
331
332 do {
333 n2=-n1;
334 f=n1*(f1-f2);
335 do {
336 n2--;
337 f=f-f2;
338 dprintk(" spurtest n1=%d n2=%d ftest=%d\n",n1,n2,f);
339
340 if( (f>spectrum_from) && (f<spectrum_to))
341 printk("mt2032 spurcheck triggered: %d\n",n1);
342 } while ( (f>(f2-spectrum_to)) || (n2>-5));
343 n1++;
344 } while (n1<5);
345
346 return 1;
347 }
348
349 static int mt2032_compute_freq(unsigned int rfin,
350 unsigned int if1, unsigned int if2,
351 unsigned int spectrum_from,
352 unsigned int spectrum_to,
353 unsigned char *buf,
354 int *ret_sel,
355 unsigned int xogc) //all in Hz
356 {
357 unsigned int fref,lo1,lo1n,lo1a,s,sel,lo1freq, desired_lo1,
358 desired_lo2,lo2,lo2n,lo2a,lo2num,lo2freq;
359
360 fref= 5250 *1000; //5.25MHz
361 desired_lo1=rfin+if1;
362
363 lo1=(2*(desired_lo1/1000)+(fref/1000)) / (2*fref/1000);
364 lo1n=lo1/8;
365 lo1a=lo1-(lo1n*8);
366
367 s=rfin/1000/1000+1090;
368
369 if(optimize_vco) {
370 if(s>1890) sel=0;
371 else if(s>1720) sel=1;
372 else if(s>1530) sel=2;
373 else if(s>1370) sel=3;
374 else sel=4; // >1090
375 }
376 else {
377 if(s>1790) sel=0; // <1958
378 else if(s>1617) sel=1;
379 else if(s>1449) sel=2;
380 else if(s>1291) sel=3;
381 else sel=4; // >1090
382 }
383 *ret_sel=sel;
384
385 lo1freq=(lo1a+8*lo1n)*fref;
386
387 dprintk("mt2032: rfin=%d lo1=%d lo1n=%d lo1a=%d sel=%d, lo1freq=%d\n",
388 rfin,lo1,lo1n,lo1a,sel,lo1freq);
389
390 desired_lo2=lo1freq-rfin-if2;
391 lo2=(desired_lo2)/fref;
392 lo2n=lo2/8;
393 lo2a=lo2-(lo2n*8);
394 lo2num=((desired_lo2/1000)%(fref/1000))* 3780/(fref/1000); //scale to fit in 32bit arith
395 lo2freq=(lo2a+8*lo2n)*fref + lo2num*(fref/1000)/3780*1000;
396
397 dprintk("mt2032: rfin=%d lo2=%d lo2n=%d lo2a=%d num=%d lo2freq=%d\n",
398 rfin,lo2,lo2n,lo2a,lo2num,lo2freq);
399
400 if(lo1a<0 || lo1a>7 || lo1n<17 ||lo1n>48 || lo2a<0 ||lo2a >7 ||lo2n<17 || lo2n>30) {
401 printk("mt2032: frequency parameters out of range: %d %d %d %d\n",
402 lo1a, lo1n, lo2a,lo2n);
403 return(-1);
404 }
405
406 mt2032_spurcheck(lo1freq, desired_lo2, spectrum_from, spectrum_to);
407 // should recalculate lo1 (one step up/down)
408
409 // set up MT2032 register map for transfer over i2c
410 buf[0]=lo1n-1;
411 buf[1]=lo1a | (sel<<4);
412 buf[2]=0x86; // LOGC
413 buf[3]=0x0f; //reserved
414 buf[4]=0x1f;
415 buf[5]=(lo2n-1) | (lo2a<<5);
416 if(rfin >400*1000*1000)
417 buf[6]=0xe4;
418 else
419 buf[6]=0xf4; // set PKEN per rev 1.2
420 buf[7]=8+xogc;
421 buf[8]=0xc3; //reserved
422 buf[9]=0x4e; //reserved
423 buf[10]=0xec; //reserved
424 buf[11]=(lo2num&0xff);
425 buf[12]=(lo2num>>8) |0x80; // Lo2RST
426
427 return 0;
428 }
429
430 static int mt2032_check_lo_lock(struct i2c_client *c)
431 {
432 int try,lock=0;
433 unsigned char buf[2];
434 for(try=0;try<10;try++) {
435 buf[0]=0x0e;
436 i2c_master_send(c,buf,1);
437 i2c_master_recv(c,buf,1);
438 dprintk("mt2032 Reg.E=0x%02x\n",buf[0]);
439 lock=buf[0] &0x06;
440
441 if (lock==6)
442 break;
443
444 dprintk("mt2032: pll wait 1ms for lock (0x%2x)\n",buf[0]);
445 udelay(1000);
446 }
447 return lock;
448 }
449
450 static int mt2032_optimize_vco(struct i2c_client *c,int sel,int lock)
451 {
452 unsigned char buf[2];
453 int tad1;
454
455 buf[0]=0x0f;
456 i2c_master_send(c,buf,1);
457 i2c_master_recv(c,buf,1);
458 dprintk("mt2032 Reg.F=0x%02x\n",buf[0]);
459 tad1=buf[0]&0x07;
460
461 if(tad1 ==0) return lock;
462 if(tad1 ==1) return lock;
463
464 if(tad1==2) {
465 if(sel==0)
466 return lock;
467 else sel--;
468 }
469 else {
470 if(sel<4)
471 sel++;
472 else
473 return lock;
474 }
475
476 dprintk("mt2032 optimize_vco: sel=%d\n",sel);
477
478 buf[0]=0x0f;
479 buf[1]=sel;
480 i2c_master_send(c,buf,2);
481 lock=mt2032_check_lo_lock(c);
482 return lock;
483 }
484
485
486 static void mt2032_set_if_freq(struct i2c_client *c, unsigned int rfin,
487 unsigned int if1, unsigned int if2,
488 unsigned int from, unsigned int to)
489 {
490 unsigned char buf[21];
491 int lint_try,ret,sel,lock=0;
492 struct tuner *t = i2c_get_clientdata(c);
493
494 dprintk("mt2032_set_if_freq rfin=%d if1=%d if2=%d from=%d to=%d\n",rfin,if1,if2,from,to);
495
496 buf[0]=0;
497 ret=i2c_master_send(c,buf,1);
498 i2c_master_recv(c,buf,21);
499
500 buf[0]=0;
501 ret=mt2032_compute_freq(rfin,if1,if2,from,to,&buf[1],&sel,t->xogc);
502 if (ret<0)
503 return;
504
505 // send only the relevant registers per Rev. 1.2
506 buf[0]=0;
507 ret=i2c_master_send(c,buf,4);
508 buf[5]=5;
509 ret=i2c_master_send(c,buf+5,4);
510 buf[11]=11;
511 ret=i2c_master_send(c,buf+11,3);
512 if(ret!=3)
513 printk("mt2032_set_if_freq failed with %d\n",ret);
514
515 // wait for PLLs to lock (per manual), retry LINT if not.
516 for(lint_try=0; lint_try<2; lint_try++) {
517 lock=mt2032_check_lo_lock(c);
518
519 if(optimize_vco)
520 lock=mt2032_optimize_vco(c,sel,lock);
521 if(lock==6) break;
522
523 printk("mt2032: re-init PLLs by LINT\n");
524 buf[0]=7;
525 buf[1]=0x80 +8+t->xogc; // set LINT to re-init PLLs
526 i2c_master_send(c,buf,2);
527 mdelay(10);
528 buf[1]=8+t->xogc;
529 i2c_master_send(c,buf,2);
530 }
531
532 if (lock!=6)
533 printk("MT2032 Fatal Error: PLLs didn't lock.\n");
534
535 buf[0]=2;
536 buf[1]=0x20; // LOGC for optimal phase noise
537 ret=i2c_master_send(c,buf,2);
538 if (ret!=2)
539 printk("mt2032_set_if_freq2 failed with %d\n",ret);
540 }
541
542
543 static void mt2032_set_tv_freq(struct i2c_client *c, unsigned int freq)
544 {
545 struct tuner *t = i2c_get_clientdata(c);
546 int if2,from,to;
547
548 // signal bandwidth and picture carrier
549 if (t->std & V4L2_STD_525_60) {
550 // NTSC
551 from = 40750*1000;
552 to = 46750*1000;
553 if2 = 45750*1000;
554 } else {
555 // PAL
556 from = 32900*1000;
557 to = 39900*1000;
558 if2 = 38900*1000;
559 }
560
561 mt2032_set_if_freq(c, freq*62500 /* freq*1000*1000/16 */,
562 1090*1000*1000, if2, from, to);
563 }
564
565 static void mt2032_set_radio_freq(struct i2c_client *c, unsigned int freq)
566 {
567 struct tuner *t = i2c_get_clientdata(c);
568 int if2 = t->radio_if2;
569
570 // per Manual for FM tuning: first if center freq. 1085 MHz
571 mt2032_set_if_freq(c, freq*62500 /* freq*1000*1000/16 */,
572 1085*1000*1000,if2,if2,if2);
573 }
574
575 // Initalization as described in "MT203x Programming Procedures", Rev 1.2, Feb.2001
576 static int mt2032_init(struct i2c_client *c)
577 {
578 struct tuner *t = i2c_get_clientdata(c);
579 unsigned char buf[21];
580 int ret,xogc,xok=0;
581
582 // Initialize Registers per spec.
583 buf[1]=2; // Index to register 2
584 buf[2]=0xff;
585 buf[3]=0x0f;
586 buf[4]=0x1f;
587 ret=i2c_master_send(c,buf+1,4);
588
589 buf[5]=6; // Index register 6
590 buf[6]=0xe4;
591 buf[7]=0x8f;
592 buf[8]=0xc3;
593 buf[9]=0x4e;
594 buf[10]=0xec;
595 ret=i2c_master_send(c,buf+5,6);
596
597 buf[12]=13; // Index register 13
598 buf[13]=0x32;
599 ret=i2c_master_send(c,buf+12,2);
600
601 // Adjust XOGC (register 7), wait for XOK
602 xogc=7;
603 do {
604 dprintk("mt2032: xogc = 0x%02x\n",xogc&0x07);
605 mdelay(10);
606 buf[0]=0x0e;
607 i2c_master_send(c,buf,1);
608 i2c_master_recv(c,buf,1);
609 xok=buf[0]&0x01;
610 dprintk("mt2032: xok = 0x%02x\n",xok);
611 if (xok == 1) break;
612
613 xogc--;
614 dprintk("mt2032: xogc = 0x%02x\n",xogc&0x07);
615 if (xogc == 3) {
616 xogc=4; // min. 4 per spec
617 break;
618 }
619 buf[0]=0x07;
620 buf[1]=0x88 + xogc;
621 ret=i2c_master_send(c,buf,2);
622 if (ret!=2)
623 printk("mt2032_init failed with %d\n",ret);
624 } while (xok != 1 );
625 t->xogc=xogc;
626
627 t->tv_freq = mt2032_set_tv_freq;
628 t->radio_freq = mt2032_set_radio_freq;
629 return(1);
630 }
631
632 static void mt2050_set_antenna(struct i2c_client *c, unsigned char antenna)
633 {
634 unsigned char buf[2];
635 int ret;
636
637 buf[0] = 6;
638 buf[1] = antenna ? 0x11 : 0x10;
639 ret=i2c_master_send(c,buf,2);
640 dprintk("mt2050: enabled antenna connector %d\n", antenna);
641 }
642
643 static void mt2050_set_if_freq(struct i2c_client *c,unsigned int freq, unsigned int if2)
644 {
645 unsigned int if1=1218*1000*1000;
646 unsigned int f_lo1,f_lo2,lo1,lo2,f_lo1_modulo,f_lo2_modulo,num1,num2,div1a,div1b,div2a,div2b;
647 int ret;
648 unsigned char buf[6];
649
650 dprintk("mt2050_set_if_freq freq=%d\n",freq);
651
652 f_lo1=freq+if1;
653 f_lo1=(f_lo1/1000000)*1000000;
654
655 f_lo2=f_lo1-freq-if2;
656 f_lo2=(f_lo2/50000)*50000;
657
658 lo1=f_lo1/4000000;
659 lo2=f_lo2/4000000;
660
661 f_lo1_modulo= f_lo1-(lo1*4000000);
662 f_lo2_modulo= f_lo2-(lo2*4000000);
663
664 num1=4*f_lo1_modulo/4000000;
665 num2=4096*(f_lo2_modulo/1000)/4000;
666
667 // todo spurchecks
668
669 div1a=(lo1/12)-1;
670 div1b=lo1-(div1a+1)*12;
671
672 div2a=(lo2/8)-1;
673 div2b=lo2-(div2a+1)*8;
674
675 dprintk("lo1 lo2 = %d %d\n", lo1, lo2);
676 dprintk("num1 num2 div1a div1b div2a div2b= %x %x %x %x %x %x\n",num1,num2,div1a,div1b,div2a,div2b);
677
678
679 buf[0]=1;
680 buf[1]= 4*div1b + num1;
681 if(freq<275*1000*1000) buf[1] = buf[1]|0x80;
682
683 buf[2]=div1a;
684 buf[3]=32*div2b + num2/256;
685 buf[4]=num2-(num2/256)*256;
686 buf[5]=div2a;
687 if(num2!=0) buf[5]=buf[5]|0x40;
688
689 if(debug) {
690 int i;
691 printk("bufs is: ");
692 for(i=0;i<6;i++)
693 printk("%x ",buf[i]);
694 printk("\n");
695 }
696
697 ret=i2c_master_send(c,buf,6);
698 if (ret!=6)
699 printk("mt2050_set_if_freq failed with %d\n",ret);
700 }
701
702 static void mt2050_set_tv_freq(struct i2c_client *c, unsigned int freq)
703 {
704 struct tuner *t = i2c_get_clientdata(c);
705 unsigned int if2;
706
707 if (t->std & V4L2_STD_525_60) {
708 // NTSC
709 if2 = 45750*1000;
710 } else {
711 // PAL
712 if2 = 38900*1000;
713 }
714 mt2050_set_if_freq(c, freq*62500, if2);
715 mt2050_set_antenna(c, tv_antenna);
716 }
717
718 static void mt2050_set_radio_freq(struct i2c_client *c, unsigned int freq)
719 {
720 struct tuner *t = i2c_get_clientdata(c);
721 int if2 = t->radio_if2;
722
723 mt2050_set_if_freq(c, freq*62500, if2);
724 mt2050_set_antenna(c, radio_antenna);
725 }
726
727 static int mt2050_init(struct i2c_client *c)
728 {
729 struct tuner *t = i2c_get_clientdata(c);
730 unsigned char buf[2];
731 int ret;
732
733 buf[0]=6;
734 buf[1]=0x10;
735 ret=i2c_master_send(c,buf,2); // power
736
737 buf[0]=0x0f;
738 buf[1]=0x0f;
739 ret=i2c_master_send(c,buf,2); // m1lo
740
741 buf[0]=0x0d;
742 ret=i2c_master_send(c,buf,1);
743 i2c_master_recv(c,buf,1);
744
745 dprintk("mt2050: sro is %x\n",buf[0]);
746 t->tv_freq = mt2050_set_tv_freq;
747 t->radio_freq = mt2050_set_radio_freq;
748 return 0;
749 }
750
751 static int microtune_init(struct i2c_client *c)
752 {
753 struct tuner *t = i2c_get_clientdata(c);
754 char *name;
755 unsigned char buf[21];
756 int company_code;
757
758 memset(buf,0,sizeof(buf));
759 t->tv_freq = NULL;
760 t->radio_freq = NULL;
761 name = "unknown";
762
763 i2c_master_send(c,buf,1);
764 i2c_master_recv(c,buf,21);
765 if(debug) {
766 int i;
767 printk(KERN_DEBUG "tuner: MT2032 hexdump:\n");
768 for(i=0;i<21;i++) {
769 printk(" %02x",buf[i]);
770 if(((i+1)%8)==0) printk(" ");
771 if(((i+1)%16)==0) printk("\n ");
772 }
773 printk("\n ");
774 }
775 company_code = buf[0x11] << 8 | buf[0x12];
776 printk("tuner: microtune: companycode=%04x part=%02x rev=%02x\n",
777 company_code,buf[0x13],buf[0x14]);
778
779 #if 0
780 /* seems to cause more problems than it solves ... */
781 switch (company_code) {
782 case 0x30bf:
783 case 0x3cbf:
784 case 0x3dbf:
785 case 0x4d54:
786 case 0x8e81:
787 case 0x8e91:
788 /* ok (?) */
789 break;
790 default:
791 printk("tuner: microtune: unknown companycode\n");
792 return 0;
793 }
794 #endif
795
796 if (buf[0x13] < ARRAY_SIZE(microtune_part) &&
797 NULL != microtune_part[buf[0x13]])
798 name = microtune_part[buf[0x13]];
799 switch (buf[0x13]) {
800 case MT2032:
801 mt2032_init(c);
802 break;
803 case MT2050:
804 mt2050_init(c);
805 break;
806 default:
807 printk("tuner: microtune %s found, not (yet?) supported, sorry :-/\n",
808 name);
809 return 0;
810 }
811 printk("tuner: microtune %s found, OK\n",name);
812 return 0;
813 }
814
815 /* ---------------------------------------------------------------------- */
816
817 static void default_set_tv_freq(struct i2c_client *c, unsigned int freq)
818 {
819 struct tuner *t = i2c_get_clientdata(c);
820 u8 config;
821 u16 div;
822 struct tunertype *tun;
823 unsigned char buffer[4];
824 int rc;
825
826 tun=&tuners[t->type];
827 if (freq < tun->thresh1)
828 config = tun->VHF_L;
829 else if (freq < tun->thresh2)
830 config = tun->VHF_H;
831 else
832 config = tun->UHF;
833
834
835 /* tv norm specific stuff for multi-norm tuners */
836 switch (t->type) {
837 case TUNER_PHILIPS_SECAM: // FI1216MF
838 /* 0x01 -> ??? no change ??? */
839 /* 0x02 -> PAL BDGHI / SECAM L */
840 /* 0x04 -> ??? PAL others / SECAM others ??? */
841 config &= ~0x02;
842 if (t->std & V4L2_STD_SECAM)
843 config |= 0x02;
844 break;
845
846 case TUNER_TEMIC_4046FM5:
847 config &= ~0x0f;
848
849 if (t->std & V4L2_STD_PAL_BG) {
850 config |= TEMIC_SET_PAL_BG;
851
852 } else if (t->std & V4L2_STD_PAL_I) {
853 config |= TEMIC_SET_PAL_I;
854
855 } else if (t->std & V4L2_STD_PAL_DK) {
856 config |= TEMIC_SET_PAL_DK;
857
858 } else if (t->std & V4L2_STD_SECAM_L) {
859 config |= TEMIC_SET_PAL_L;
860
861 }
862 break;
863
864 case TUNER_PHILIPS_FQ1216ME:
865 config &= ~0x0f;
866
867 if (t->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) {
868 config |= PHILIPS_SET_PAL_BGDK;
869
870 } else if (t->std & V4L2_STD_PAL_I) {
871 config |= PHILIPS_SET_PAL_I;
872
873 } else if (t->std & V4L2_STD_SECAM_L) {
874 config |= PHILIPS_SET_PAL_L;
875
876 }
877 break;
878
879 case TUNER_PHILIPS_ATSC:
880 /* 0x00 -> ATSC antenna input 1 */
881 /* 0x01 -> ATSC antenna input 2 */
882 /* 0x02 -> NTSC antenna input 1 */
883 /* 0x03 -> NTSC antenna input 2 */
884 config &= ~0x03;
885 if (t->std & V4L2_STD_ATSC)
886 config |= 2;
887 /* FIXME: input */
888 break;
889 }
890
891
892 /*
893 * Philips FI1216MK2 remark from specification :
894 * for channel selection involving band switching, and to ensure
895 * smooth tuning to the desired channel without causing
896 * unnecessary charge pump action, it is recommended to consider
897 * the difference between wanted channel frequency and the
898 * current channel frequency. Unnecessary charge pump action
899 * will result in very low tuning voltage which may drive the
900 * oscillator to extreme conditions.
901 *
902 * Progfou: specification says to send config data before
903 * frequency in case (wanted frequency < current frequency).
904 */
905
906 div=freq + tun->IFPCoff;
907 if (t->type == TUNER_PHILIPS_SECAM && freq < t->freq) {
908 buffer[0] = tun->config;
909 buffer[1] = config;
910 buffer[2] = (div>>8) & 0x7f;
911 buffer[3] = div & 0xff;
912 } else {
913 buffer[0] = (div>>8) & 0x7f;
914 buffer[1] = div & 0xff;
915 buffer[2] = tun->config;
916 buffer[3] = config;
917 }
918 dprintk("tuner: tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
919 buffer[0],buffer[1],buffer[2],buffer[3]);
920
921 if (4 != (rc = i2c_master_send(c,buffer,4)))
922 printk("tuner: i2c i/o error: rc == %d (should be 4)\n",rc);
923
924 }
925
926 static void default_set_radio_freq(struct i2c_client *c, unsigned int freq)
927 {
928 struct tunertype *tun;
929 struct tuner *t = i2c_get_clientdata(c);
930 unsigned char buffer[4];
931 unsigned div;
932 int rc;
933
934 tun=&tuners[t->type];
935 div = freq + (int)(16*10.7);
936 buffer[0] = (div>>8) & 0x7f;
937 buffer[1] = div & 0xff;
938 buffer[2] = tun->config;
939 switch (t->type) {
940 case TUNER_PHILIPS_FM1216ME_MK3:
941 case TUNER_PHILIPS_FM1236_MK3:
942 buffer[3] = 0x19;
943 break;
944 case TUNER_LG_PAL_FM:
945 buffer[3] = 0xa5;
946 break;
947 default:
948 buffer[3] = 0xa4;
949 break;
950 }
951
952 dprintk("tuner: radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
953 buffer[0],buffer[1],buffer[2],buffer[3]);
954
955 if (4 != (rc = i2c_master_send(c,buffer,4)))
956 printk("tuner: i2c i/o error: rc == %d (should be 4)\n",rc);
957 }
958
959 /* ---------------------------------------------------------------------- */
960
961 // Set tuner frequency, freq in Units of 62.5kHz = 1/16MHz
962 static void set_tv_freq(struct i2c_client *c, unsigned int freq)
963 {
964 struct tuner *t = i2c_get_clientdata(c);
965
966 if (t->type == UNSET) {
967 printk("tuner: tuner type not set\n");
968 return;
969 }
970 if (NULL == t->tv_freq) {
971 printk("tuner: Huh? tv_set is NULL?\n");
972 return;
973 }
974 if (freq < tv_range[0]*16 || freq > tv_range[1]*16) {
975 /* FIXME: better do that chip-specific, but
976 right now we don't have that in the config
977 struct and this way is still better than no
978 check at all */
979 printk("tuner: TV freq (%d.%02d) out of range (%d-%d)\n",
980 freq/16,freq%16*100/16,tv_range[0],tv_range[1]);
981 return;
982 }
983 t->tv_freq(c,freq);
984 }
985
986 static void set_radio_freq(struct i2c_client *c, unsigned int freq)
987 {
988 struct tuner *t = i2c_get_clientdata(c);
989
990 if (t->type == UNSET) {
991 printk("tuner: tuner type not set\n");
992 return;
993 }
994 if (NULL == t->radio_freq) {
995 printk("tuner: no radio tuning for this one, sorry.\n");
996 return;
997 }
998 if (freq < radio_range[0]*16 || freq > radio_range[1]*16) {
999 printk("tuner: radio freq (%d.%02d) out of range (%d-%d)\n",
1000 freq/16,freq%16*100/16,
1001 radio_range[0],radio_range[1]);
1002 return;
1003 }
1004 t->radio_freq(c,freq);
1005 }
1006
1007 static void set_freq(struct i2c_client *c, unsigned long freq)
1008 {
1009 struct tuner *t = i2c_get_clientdata(c);
1010
1011 if (t->radio) {
1012 dprintk("tuner: radio freq set to %lu.%02lu\n",
1013 freq/16,freq%16*100/16);
1014 set_radio_freq(c,freq);
1015 } else {
1016 dprintk("tuner: tv freq set to %lu.%02lu\n",
1017 freq/16,freq%16*100/16);
1018 set_tv_freq(c, freq);
1019 }
1020 t->freq = freq;
1021 }
1022
1023 static void set_type(struct i2c_client *c, unsigned int type, char *source)
1024 {
1025 struct tuner *t = i2c_get_clientdata(c);
1026
1027 if (t->type != UNSET) {
1028 if (t->type != type)
1029 printk("tuner: type already set to %d, "
1030 "ignoring request for %d\n", t->type, type);
1031 return;
1032 }
1033 if (type >= TUNERS)
1034 return;
1035
1036 t->type = type;
1037 printk("tuner: type set to %d (%s) by %s\n",
1038 t->type,tuners[t->type].name, source);
1039 strlcpy(c->name, tuners[t->type].name, sizeof(c->name));
1040
1041 switch (t->type) {
1042 case TUNER_MT2032:
1043 microtune_init(c);
1044 break;
1045 default:
1046 t->tv_freq = default_set_tv_freq;
1047 t->radio_freq = default_set_radio_freq;
1048 break;
1049 }
1050 }
1051
1052 static char *pal = "-";
1053 MODULE_PARM(pal,"s");
1054
1055 static int tuner_fixup_std(struct tuner *t)
1056 {
1057 if ((t->std & V4L2_STD_PAL) == V4L2_STD_PAL) {
1058 /* get more precise norm info from insmod option */
1059 switch (pal[0]) {
1060 case 'b':
1061 case 'B':
1062 case 'g':
1063 case 'G':
1064 dprintk("insmod fixup: PAL => PAL-BG\n");
1065 t->std = V4L2_STD_PAL_BG;
1066 break;
1067 case 'i':
1068 case 'I':
1069 dprintk("insmod fixup: PAL => PAL-I\n");
1070 t->std = V4L2_STD_PAL_I;
1071 break;
1072 case 'd':
1073 case 'D':
1074 case 'k':
1075 case 'K':
1076 dprintk("insmod fixup: PAL => PAL-DK\n");
1077 t->std = V4L2_STD_PAL_DK;
1078 break;
1079 }
1080 }
1081 return 0;
1082 }
1083
1084 /* ---------------------------------------------------------------------- */
1085
1086 static int tuner_attach(struct i2c_adapter *adap, int addr, int kind)
1087 {
1088 struct tuner *t;
1089 struct i2c_client *client;
1090
1091 if (this_adap > 0)
1092 return -1;
1093 this_adap++;
1094
1095 client_template.adapter = adap;
1096 client_template.addr = addr;
1097
1098 printk("tuner: chip found at addr 0x%x i2c-bus %s\n",
1099 addr<<1, adap->name);
1100
1101 if (NULL == (client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL)))
1102 return -ENOMEM;
1103 memcpy(client,&client_template,sizeof(struct i2c_client));
1104 t = kmalloc(sizeof(struct tuner),GFP_KERNEL);
1105 if (NULL == t) {
1106 kfree(client);
1107 return -ENOMEM;
1108 }
1109 memset(t,0,sizeof(struct tuner));
1110 i2c_set_clientdata(client, t);
1111 t->type = UNSET;
1112 t->radio_if2 = 10700*1000; // 10.7MHz - FM radio
1113
1114 i2c_attach_client(client);
1115 if (type < TUNERS) {
1116 set_type(client, type, "insmod option");
1117 printk("tuner: The type=<n> insmod option will go away soon.\n");
1118 printk("tuner: Please use the tuner=<n> option provided by\n");
1119 printk("tuner: tv aard core driver (bttv, saa7134, ...) instead.\n");
1120 }
1121 return 0;
1122 }
1123
1124 static int tuner_probe(struct i2c_adapter *adap)
1125 {
1126 if (0 != addr) {
1127 normal_i2c_range[0] = addr;
1128 normal_i2c_range[1] = addr;
1129 }
1130 this_adap = 0;
1131
1132 #ifdef I2C_CLASS_TV_ANALOG
1133 if (adap->class & I2C_CLASS_TV_ANALOG)
1134 return i2c_probe(adap, &addr_data, tuner_attach);
1135 #else
1136 switch (adap->id) {
1137 case I2C_ALGO_BIT | I2C_HW_SMBUS_VOODOO3:
1138 case I2C_ALGO_BIT | I2C_HW_B_BT848:
1139 case I2C_ALGO_BIT | I2C_HW_B_RIVA:
1140 case I2C_ALGO_SAA7134:
1141 case I2C_ALGO_SAA7146:
1142 return i2c_probe(adap, &addr_data, tuner_attach);
1143 break;
1144 }
1145 #endif
1146 return 0;
1147 }
1148
1149 static int tuner_detach(struct i2c_client *client)
1150 {
1151 struct tuner *t = i2c_get_clientdata(client);
1152
1153 i2c_detach_client(client);
1154 kfree(t);
1155 kfree(client);
1156 return 0;
1157 }
1158
1159 #define SWITCH_V4L2 if (!t->using_v4l2 && debug) \
1160 printk("tuner: switching to v4l2\n"); \
1161 t->using_v4l2 = 1;
1162 #define CHECK_V4L2 if (t->using_v4l2) { if (debug) \
1163 printk("tuner: ignore v4l1 call\n"); \
1164 return 0; }
1165
1166 static int
1167 tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
1168 {
1169 struct tuner *t = i2c_get_clientdata(client);
1170 unsigned int *iarg = (int*)arg;
1171
1172 switch (cmd) {
1173
1174 /* --- configuration --- */
1175 case TUNER_SET_TYPE:
1176 set_type(client,*iarg,client->adapter->name);
1177 break;
1178 case AUDC_SET_RADIO:
1179 if (!t->radio) {
1180 set_tv_freq(client,400 * 16);
1181 t->radio = 1;
1182 }
1183 break;
1184 case AUDC_CONFIG_PINNACLE:
1185 switch (*iarg) {
1186 case 2:
1187 dprintk("tuner: pinnacle pal\n");
1188 t->radio_if2 = 33300 * 1000;
1189 break;
1190 case 3:
1191 dprintk("tuner: pinnacle ntsc\n");
1192 t->radio_if2 = 41300 * 1000;
1193 break;
1194 }
1195 break;
1196
1197 /* --- v4l ioctls --- */
1198 /* take care: bttv does userspace copying, we'll get a
1199 kernel pointer here... */
1200 case VIDIOCSCHAN:
1201 {
1202 static const v4l2_std_id map[] = {
1203 [ VIDEO_MODE_PAL ] = V4L2_STD_PAL,
1204 [ VIDEO_MODE_NTSC ] = V4L2_STD_NTSC_M,
1205 [ VIDEO_MODE_SECAM ] = V4L2_STD_SECAM,
1206 [ 4 /* bttv */ ] = V4L2_STD_PAL_M,
1207 [ 5 /* bttv */ ] = V4L2_STD_PAL_N,
1208 [ 6 /* bttv */ ] = V4L2_STD_NTSC_M_JP,
1209 };
1210 struct video_channel *vc = arg;
1211
1212 CHECK_V4L2;
1213 t->radio = 0;
1214 if (vc->norm < ARRAY_SIZE(map))
1215 t->std = map[vc->norm];
1216 tuner_fixup_std(t);
1217 if (t->freq)
1218 set_tv_freq(client,t->freq);
1219 return 0;
1220 }
1221 case VIDIOCSFREQ:
1222 {
1223 unsigned long *v = arg;
1224
1225 CHECK_V4L2;
1226 set_freq(client,*v);
1227 return 0;
1228 }
1229 case VIDIOCGTUNER:
1230 {
1231 struct video_tuner *vt = arg;
1232
1233 CHECK_V4L2;
1234 if (t->radio)
1235 vt->signal = tuner_signal(client);
1236 return 0;
1237 }
1238 case VIDIOCGAUDIO:
1239 {
1240 struct video_audio *va = arg;
1241
1242 CHECK_V4L2;
1243 if (t->radio)
1244 va->mode = (tuner_stereo(client) ? VIDEO_SOUND_STEREO : VIDEO_SOUND_MONO);
1245 return 0;
1246 }
1247
1248 case VIDIOC_S_STD:
1249 {
1250 v4l2_std_id *id = arg;
1251
1252 SWITCH_V4L2;
1253 t->radio = 0;
1254 t->std = *id;
1255 tuner_fixup_std(t);
1256 if (t->freq)
1257 set_freq(client,t->freq);
1258 break;
1259 }
1260 case VIDIOC_S_FREQUENCY:
1261 {
1262 struct v4l2_frequency *f = arg;
1263
1264 SWITCH_V4L2;
1265 if (V4L2_TUNER_ANALOG_TV == f->type) {
1266 t->radio = 0;
1267 }
1268 if (V4L2_TUNER_RADIO == f->type) {
1269 if (!t->radio) {
1270 set_tv_freq(client,400*16);
1271 t->radio = 1;
1272 }
1273 }
1274 t->freq = f->frequency;
1275 set_freq(client,t->freq);
1276 break;
1277 }
1278 case VIDIOC_G_TUNER:
1279 {
1280 struct v4l2_tuner *tuner = arg;
1281
1282 SWITCH_V4L2;
1283 if (t->radio)
1284 tuner->signal = tuner_signal(client);
1285 break;
1286 }
1287 default:
1288 /* nothing */
1289 break;
1290 }
1291
1292 return 0;
1293 }
1294
1295 /* ----------------------------------------------------------------------- */
1296
1297 static struct i2c_driver driver = {
1298 .owner = THIS_MODULE,
1299 .name = "i2c TV tuner driver",
1300 .id = I2C_DRIVERID_TUNER,
1301 .flags = I2C_DF_NOTIFY,
1302 .attach_adapter = tuner_probe,
1303 .detach_client = tuner_detach,
1304 .command = tuner_command,
1305 };
1306 static struct i2c_client client_template =
1307 {
1308 I2C_DEVNAME("(tuner unset)"),
1309 .flags = I2C_CLIENT_ALLOW_USE,
1310 .driver = &driver,
1311 };
1312
1313 static int __init tuner_init_module(void)
1314 {
1315 return i2c_add_driver(&driver);
1316 }
1317
1318 static void __exit tuner_cleanup_module(void)
1319 {
1320 i2c_del_driver(&driver);
1321 }
1322
1323 module_init(tuner_init_module);
1324 module_exit(tuner_cleanup_module);
1325
1326 /*
1327 * Overrides for Emacs so that we follow Linus's tabbing style.
1328 * ---------------------------------------------------------------------------
1329 * Local variables:
1330 * c-basic-offset: 8
1331 * End:
1332 */
MOXA 2.6.9 from sdlinux-moxaart.tgz