]>
Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* radio-cadet.c - A video4linux driver for the ADS Cadet AM/FM Radio Card |
2 | * | |
3 | * by Fred Gleason <fredg@wava.com> | |
4 | * Version 0.3.3 | |
5 | * | |
6 | * (Loosely) based on code for the Aztech radio card by | |
7 | * | |
8 | * Russell Kroll (rkroll@exploits.org) | |
9 | * Quay Ly | |
10 | * Donald Song | |
4286c6f6 | 11 | * Jason Lewis (jlewis@twilight.vtc.vsc.edu) |
1da177e4 LT |
12 | * Scott McGrath (smcgrath@twilight.vtc.vsc.edu) |
13 | * William McGrath (wmcgrath@twilight.vtc.vsc.edu) | |
14 | * | |
15 | * History: | |
16 | * 2000-04-29 Russell Kroll <rkroll@exploits.org> | |
17 | * Added ISAPnP detection for Linux 2.3/2.4 | |
18 | * | |
19 | * 2001-01-10 Russell Kroll <rkroll@exploits.org> | |
20 | * Removed dead CONFIG_RADIO_CADET_PORT code | |
21 | * PnP detection on load is now default (no args necessary) | |
22 | * | |
23 | * 2002-01-17 Adam Belay <ambx1@neo.rr.com> | |
24 | * Updated to latest pnp code | |
25 | * | |
26 | * 2003-01-31 Alan Cox <alan@redhat.com> | |
27 | * Cleaned up locking, delay code, general odds and ends | |
c0c7fa09 HK |
28 | * |
29 | * 2006-07-30 Hans J. Koch <koch@hjk-az.de> | |
30 | * Changed API to V4L2 | |
1da177e4 LT |
31 | */ |
32 | ||
d591b9cc | 33 | #include <linux/version.h> |
1da177e4 LT |
34 | #include <linux/module.h> /* Modules */ |
35 | #include <linux/init.h> /* Initdata */ | |
fb911ee8 | 36 | #include <linux/ioport.h> /* request_region */ |
1da177e4 LT |
37 | #include <linux/delay.h> /* udelay */ |
38 | #include <asm/io.h> /* outb, outb_p */ | |
39 | #include <asm/uaccess.h> /* copy to/from user */ | |
c0c7fa09 | 40 | #include <linux/videodev2.h> /* V4L2 API defs */ |
5e87efa3 | 41 | #include <media/v4l2-common.h> |
1da177e4 LT |
42 | #include <linux/param.h> |
43 | #include <linux/pnp.h> | |
44 | ||
45 | #define RDS_BUFFER 256 | |
c0c7fa09 HK |
46 | #define RDS_RX_FLAG 1 |
47 | #define MBS_RX_FLAG 2 | |
48 | ||
49 | #define CADET_VERSION KERNEL_VERSION(0,3,3) | |
1da177e4 | 50 | |
c1c4fd3e DL |
51 | static struct v4l2_queryctrl radio_qctrl[] = { |
52 | { | |
53 | .id = V4L2_CID_AUDIO_MUTE, | |
54 | .name = "Mute", | |
55 | .minimum = 0, | |
56 | .maximum = 1, | |
57 | .default_value = 1, | |
58 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
59 | },{ | |
60 | .id = V4L2_CID_AUDIO_VOLUME, | |
61 | .name = "Volume", | |
62 | .minimum = 0, | |
63 | .maximum = 0xff, | |
64 | .step = 1, | |
65 | .default_value = 0xff, | |
66 | .type = V4L2_CTRL_TYPE_INTEGER, | |
67 | } | |
68 | }; | |
69 | ||
1da177e4 LT |
70 | static int io=-1; /* default to isapnp activation */ |
71 | static int radio_nr = -1; | |
ff699e6b DSL |
72 | static int users; |
73 | static int curtuner; | |
74 | static int tunestat; | |
75 | static int sigstrength; | |
1da177e4 LT |
76 | static wait_queue_head_t read_queue; |
77 | static struct timer_list readtimer; | |
ff699e6b | 78 | static __u8 rdsin, rdsout, rdsstat; |
1da177e4 LT |
79 | static unsigned char rdsbuf[RDS_BUFFER]; |
80 | static spinlock_t cadet_io_lock; | |
81 | ||
82 | static int cadet_probe(void); | |
83 | ||
84 | /* | |
85 | * Signal Strength Threshold Values | |
4286c6f6 | 86 | * The V4L API spec does not define any particular unit for the signal |
1da177e4 LT |
87 | * strength value. These values are in microvolts of RF at the tuner's input. |
88 | */ | |
89 | static __u16 sigtable[2][4]={{5,10,30,150},{28,40,63,1000}}; | |
90 | ||
1da177e4 | 91 | |
c0c7fa09 HK |
92 | static int |
93 | cadet_getstereo(void) | |
1da177e4 | 94 | { |
c0c7fa09 | 95 | int ret = V4L2_TUNER_SUB_MONO; |
4286c6f6 | 96 | if(curtuner != 0) /* Only FM has stereo capability! */ |
c0c7fa09 | 97 | return V4L2_TUNER_SUB_MONO; |
1da177e4 LT |
98 | |
99 | spin_lock(&cadet_io_lock); | |
4286c6f6 | 100 | outb(7,io); /* Select tuner control */ |
1da177e4 | 101 | if( (inb(io+1) & 0x40) == 0) |
c0c7fa09 | 102 | ret = V4L2_TUNER_SUB_STEREO; |
4286c6f6 MCC |
103 | spin_unlock(&cadet_io_lock); |
104 | return ret; | |
1da177e4 LT |
105 | } |
106 | ||
c0c7fa09 HK |
107 | static unsigned |
108 | cadet_gettune(void) | |
1da177e4 | 109 | { |
4286c6f6 | 110 | int curvol,i; |
1da177e4 LT |
111 | unsigned fifo=0; |
112 | ||
4286c6f6 MCC |
113 | /* |
114 | * Prepare for read | |
115 | */ | |
1da177e4 LT |
116 | |
117 | spin_lock(&cadet_io_lock); | |
4286c6f6 MCC |
118 | |
119 | outb(7,io); /* Select tuner control */ | |
120 | curvol=inb(io+1); /* Save current volume/mute setting */ | |
121 | outb(0x00,io+1); /* Ensure WRITE-ENABLE is LOW */ | |
1da177e4 LT |
122 | tunestat=0xffff; |
123 | ||
4286c6f6 MCC |
124 | /* |
125 | * Read the shift register | |
126 | */ | |
127 | for(i=0;i<25;i++) { | |
128 | fifo=(fifo<<1)|((inb(io+1)>>7)&0x01); | |
129 | if(i<24) { | |
130 | outb(0x01,io+1); | |
1da177e4 | 131 | tunestat&=inb(io+1); |
4286c6f6 MCC |
132 | outb(0x00,io+1); |
133 | } | |
134 | } | |
135 | ||
136 | /* | |
137 | * Restore volume/mute setting | |
138 | */ | |
139 | outb(curvol,io+1); | |
1da177e4 LT |
140 | spin_unlock(&cadet_io_lock); |
141 | ||
142 | return fifo; | |
143 | } | |
144 | ||
c0c7fa09 HK |
145 | static unsigned |
146 | cadet_getfreq(void) | |
1da177e4 | 147 | { |
4286c6f6 MCC |
148 | int i; |
149 | unsigned freq=0,test,fifo=0; | |
1da177e4 LT |
150 | |
151 | /* | |
152 | * Read current tuning | |
153 | */ | |
154 | fifo=cadet_gettune(); | |
155 | ||
4286c6f6 MCC |
156 | /* |
157 | * Convert to actual frequency | |
158 | */ | |
1da177e4 | 159 | if(curtuner==0) { /* FM */ |
4286c6f6 MCC |
160 | test=12500; |
161 | for(i=0;i<14;i++) { | |
162 | if((fifo&0x01)!=0) { | |
163 | freq+=test; | |
164 | } | |
165 | test=test<<1; | |
166 | fifo=fifo>>1; | |
167 | } | |
168 | freq-=10700000; /* IF frequency is 10.7 MHz */ | |
169 | freq=(freq*16)/1000000; /* Make it 1/16 MHz */ | |
1da177e4 LT |
170 | } |
171 | if(curtuner==1) { /* AM */ | |
4286c6f6 | 172 | freq=((fifo&0x7fff)-2010)*16; |
1da177e4 LT |
173 | } |
174 | ||
4286c6f6 | 175 | return freq; |
1da177e4 LT |
176 | } |
177 | ||
c0c7fa09 HK |
178 | static void |
179 | cadet_settune(unsigned fifo) | |
1da177e4 | 180 | { |
4286c6f6 MCC |
181 | int i; |
182 | unsigned test; | |
1da177e4 LT |
183 | |
184 | spin_lock(&cadet_io_lock); | |
4286c6f6 | 185 | |
1da177e4 LT |
186 | outb(7,io); /* Select tuner control */ |
187 | /* | |
188 | * Write the shift register | |
189 | */ | |
190 | test=0; | |
191 | test=(fifo>>23)&0x02; /* Align data for SDO */ | |
192 | test|=0x1c; /* SDM=1, SWE=1, SEN=1, SCK=0 */ | |
193 | outb(7,io); /* Select tuner control */ | |
194 | outb(test,io+1); /* Initialize for write */ | |
195 | for(i=0;i<25;i++) { | |
4286c6f6 | 196 | test|=0x01; /* Toggle SCK High */ |
1da177e4 LT |
197 | outb(test,io+1); |
198 | test&=0xfe; /* Toggle SCK Low */ | |
199 | outb(test,io+1); | |
200 | fifo=fifo<<1; /* Prepare the next bit */ | |
201 | test=0x1c|((fifo>>23)&0x02); | |
202 | outb(test,io+1); | |
203 | } | |
204 | spin_unlock(&cadet_io_lock); | |
205 | } | |
206 | ||
c0c7fa09 HK |
207 | static void |
208 | cadet_setfreq(unsigned freq) | |
1da177e4 | 209 | { |
4286c6f6 MCC |
210 | unsigned fifo; |
211 | int i,j,test; | |
212 | int curvol; | |
1da177e4 | 213 | |
4286c6f6 MCC |
214 | /* |
215 | * Formulate a fifo command | |
216 | */ | |
1da177e4 LT |
217 | fifo=0; |
218 | if(curtuner==0) { /* FM */ | |
4286c6f6 MCC |
219 | test=102400; |
220 | freq=(freq*1000)/16; /* Make it kHz */ | |
221 | freq+=10700; /* IF is 10700 kHz */ | |
222 | for(i=0;i<14;i++) { | |
223 | fifo=fifo<<1; | |
224 | if(freq>=test) { | |
225 | fifo|=0x01; | |
226 | freq-=test; | |
227 | } | |
228 | test=test>>1; | |
229 | } | |
1da177e4 LT |
230 | } |
231 | if(curtuner==1) { /* AM */ | |
4286c6f6 | 232 | fifo=(freq/16)+2010; /* Make it kHz */ |
1da177e4 LT |
233 | fifo|=0x100000; /* Select AM Band */ |
234 | } | |
235 | ||
4286c6f6 MCC |
236 | /* |
237 | * Save current volume/mute setting | |
238 | */ | |
1da177e4 LT |
239 | |
240 | spin_lock(&cadet_io_lock); | |
241 | outb(7,io); /* Select tuner control */ | |
4286c6f6 MCC |
242 | curvol=inb(io+1); |
243 | spin_unlock(&cadet_io_lock); | |
1da177e4 LT |
244 | |
245 | /* | |
246 | * Tune the card | |
247 | */ | |
248 | for(j=3;j>-1;j--) { | |
4286c6f6 MCC |
249 | cadet_settune(fifo|(j<<16)); |
250 | ||
251 | spin_lock(&cadet_io_lock); | |
1da177e4 LT |
252 | outb(7,io); /* Select tuner control */ |
253 | outb(curvol,io+1); | |
254 | spin_unlock(&cadet_io_lock); | |
4286c6f6 | 255 | |
1da177e4 LT |
256 | msleep(100); |
257 | ||
258 | cadet_gettune(); | |
259 | if((tunestat & 0x40) == 0) { /* Tuned */ | |
4286c6f6 | 260 | sigstrength=sigtable[curtuner][j]; |
1da177e4 LT |
261 | return; |
262 | } | |
263 | } | |
264 | sigstrength=0; | |
265 | } | |
266 | ||
267 | ||
c0c7fa09 HK |
268 | static int |
269 | cadet_getvol(void) | |
1da177e4 LT |
270 | { |
271 | int ret = 0; | |
4286c6f6 | 272 | |
1da177e4 | 273 | spin_lock(&cadet_io_lock); |
4286c6f6 MCC |
274 | |
275 | outb(7,io); /* Select tuner control */ | |
276 | if((inb(io + 1) & 0x20) != 0) | |
277 | ret = 0xffff; | |
278 | ||
279 | spin_unlock(&cadet_io_lock); | |
280 | return ret; | |
1da177e4 LT |
281 | } |
282 | ||
283 | ||
c0c7fa09 HK |
284 | static void |
285 | cadet_setvol(int vol) | |
1da177e4 LT |
286 | { |
287 | spin_lock(&cadet_io_lock); | |
4286c6f6 MCC |
288 | outb(7,io); /* Select tuner control */ |
289 | if(vol>0) | |
290 | outb(0x20,io+1); | |
291 | else | |
292 | outb(0x00,io+1); | |
1da177e4 | 293 | spin_unlock(&cadet_io_lock); |
4286c6f6 | 294 | } |
1da177e4 | 295 | |
c0c7fa09 HK |
296 | static void |
297 | cadet_handler(unsigned long data) | |
1da177e4 LT |
298 | { |
299 | /* | |
300 | * Service the RDS fifo | |
301 | */ | |
302 | ||
303 | if(spin_trylock(&cadet_io_lock)) | |
304 | { | |
4286c6f6 | 305 | outb(0x3,io); /* Select RDS Decoder Control */ |
1da177e4 | 306 | if((inb(io+1)&0x20)!=0) { |
4286c6f6 | 307 | printk(KERN_CRIT "cadet: RDS fifo overflow\n"); |
1da177e4 LT |
308 | } |
309 | outb(0x80,io); /* Select RDS fifo */ | |
310 | while((inb(io)&0x80)!=0) { | |
4286c6f6 | 311 | rdsbuf[rdsin]=inb(io+1); |
1da177e4 | 312 | if(rdsin==rdsout) |
4286c6f6 | 313 | printk(KERN_WARNING "cadet: RDS buffer overflow\n"); |
1da177e4 LT |
314 | else |
315 | rdsin++; | |
316 | } | |
317 | spin_unlock(&cadet_io_lock); | |
318 | } | |
319 | ||
320 | /* | |
321 | * Service pending read | |
322 | */ | |
323 | if( rdsin!=rdsout) | |
4286c6f6 | 324 | wake_up_interruptible(&read_queue); |
1da177e4 | 325 | |
4286c6f6 | 326 | /* |
1da177e4 LT |
327 | * Clean up and exit |
328 | */ | |
329 | init_timer(&readtimer); | |
330 | readtimer.function=cadet_handler; | |
331 | readtimer.data=(unsigned long)0; | |
a2d66a37 | 332 | readtimer.expires=jiffies+msecs_to_jiffies(50); |
1da177e4 LT |
333 | add_timer(&readtimer); |
334 | } | |
335 | ||
336 | ||
337 | ||
c0c7fa09 HK |
338 | static ssize_t |
339 | cadet_read(struct file *file, char __user *data, size_t count, loff_t *ppos) | |
1da177e4 | 340 | { |
4286c6f6 | 341 | int i=0; |
1da177e4 LT |
342 | unsigned char readbuf[RDS_BUFFER]; |
343 | ||
4286c6f6 | 344 | if(rdsstat==0) { |
1da177e4 | 345 | spin_lock(&cadet_io_lock); |
4286c6f6 | 346 | rdsstat=1; |
1da177e4 LT |
347 | outb(0x80,io); /* Select RDS fifo */ |
348 | spin_unlock(&cadet_io_lock); | |
349 | init_timer(&readtimer); | |
350 | readtimer.function=cadet_handler; | |
351 | readtimer.data=(unsigned long)0; | |
a2d66a37 | 352 | readtimer.expires=jiffies+msecs_to_jiffies(50); |
1da177e4 LT |
353 | add_timer(&readtimer); |
354 | } | |
355 | if(rdsin==rdsout) { | |
4286c6f6 MCC |
356 | if (file->f_flags & O_NONBLOCK) |
357 | return -EWOULDBLOCK; | |
358 | interruptible_sleep_on(&read_queue); | |
359 | } | |
1da177e4 | 360 | while( i<count && rdsin!=rdsout) |
4286c6f6 | 361 | readbuf[i++]=rdsbuf[rdsout++]; |
1da177e4 LT |
362 | |
363 | if (copy_to_user(data,readbuf,i)) | |
4286c6f6 | 364 | return -EFAULT; |
1da177e4 LT |
365 | return i; |
366 | } | |
367 | ||
368 | ||
c1c4fd3e DL |
369 | static int vidioc_querycap(struct file *file, void *priv, |
370 | struct v4l2_capability *v) | |
371 | { | |
372 | v->capabilities = | |
373 | V4L2_CAP_TUNER | | |
374 | V4L2_CAP_READWRITE; | |
375 | v->version = CADET_VERSION; | |
376 | strcpy(v->driver, "ADS Cadet"); | |
377 | strcpy(v->card, "ADS Cadet"); | |
378 | return 0; | |
379 | } | |
1da177e4 | 380 | |
c1c4fd3e DL |
381 | static int vidioc_g_tuner(struct file *file, void *priv, |
382 | struct v4l2_tuner *v) | |
1da177e4 | 383 | { |
c1c4fd3e DL |
384 | v->type = V4L2_TUNER_RADIO; |
385 | switch (v->index) { | |
386 | case 0: | |
387 | strcpy(v->name, "FM"); | |
388 | v->capability = V4L2_TUNER_CAP_STEREO; | |
389 | v->rangelow = 1400; /* 87.5 MHz */ | |
390 | v->rangehigh = 1728; /* 108.0 MHz */ | |
391 | v->rxsubchans=cadet_getstereo(); | |
392 | switch (v->rxsubchans){ | |
393 | case V4L2_TUNER_SUB_MONO: | |
394 | v->audmode = V4L2_TUNER_MODE_MONO; | |
395 | break; | |
396 | case V4L2_TUNER_SUB_STEREO: | |
397 | v->audmode = V4L2_TUNER_MODE_STEREO; | |
398 | break; | |
399 | default: ; | |
1da177e4 | 400 | } |
c1c4fd3e DL |
401 | break; |
402 | case 1: | |
403 | strcpy(v->name, "AM"); | |
404 | v->capability = V4L2_TUNER_CAP_LOW; | |
405 | v->rangelow = 8320; /* 520 kHz */ | |
406 | v->rangehigh = 26400; /* 1650 kHz */ | |
407 | v->rxsubchans = V4L2_TUNER_SUB_MONO; | |
408 | v->audmode = V4L2_TUNER_MODE_MONO; | |
409 | break; | |
410 | default: | |
411 | return -EINVAL; | |
412 | } | |
413 | v->signal = sigstrength; /* We might need to modify scaling of this */ | |
414 | return 0; | |
415 | } | |
c0c7fa09 | 416 | |
c1c4fd3e DL |
417 | static int vidioc_s_tuner(struct file *file, void *priv, |
418 | struct v4l2_tuner *v) | |
419 | { | |
420 | if((v->index != 0)&&(v->index != 1)) | |
421 | return -EINVAL; | |
422 | curtuner = v->index; | |
423 | return 0; | |
424 | } | |
c0c7fa09 | 425 | |
c1c4fd3e DL |
426 | static int vidioc_g_frequency(struct file *file, void *priv, |
427 | struct v4l2_frequency *f) | |
428 | { | |
429 | f->tuner = curtuner; | |
430 | f->type = V4L2_TUNER_RADIO; | |
431 | f->frequency = cadet_getfreq(); | |
432 | return 0; | |
433 | } | |
434 | ||
435 | ||
436 | static int vidioc_s_frequency(struct file *file, void *priv, | |
437 | struct v4l2_frequency *f) | |
438 | { | |
439 | if (f->type != V4L2_TUNER_RADIO) | |
440 | return -EINVAL; | |
441 | if((curtuner==0)&&((f->frequency<1400)||(f->frequency>1728))) | |
442 | return -EINVAL; | |
443 | if((curtuner==1)&&((f->frequency<8320)||(f->frequency>26400))) | |
444 | return -EINVAL; | |
445 | cadet_setfreq(f->frequency); | |
446 | return 0; | |
447 | } | |
448 | ||
449 | static int vidioc_queryctrl(struct file *file, void *priv, | |
450 | struct v4l2_queryctrl *qc) | |
451 | { | |
452 | int i; | |
453 | ||
454 | for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) { | |
455 | if (qc->id && qc->id == radio_qctrl[i].id) { | |
456 | memcpy(qc, &(radio_qctrl[i]), | |
457 | sizeof(*qc)); | |
1da177e4 LT |
458 | return 0; |
459 | } | |
c1c4fd3e DL |
460 | } |
461 | return -EINVAL; | |
462 | } | |
c0c7fa09 | 463 | |
c1c4fd3e DL |
464 | static int vidioc_g_ctrl(struct file *file, void *priv, |
465 | struct v4l2_control *ctrl) | |
466 | { | |
467 | switch (ctrl->id){ | |
468 | case V4L2_CID_AUDIO_MUTE: /* TODO: Handle this correctly */ | |
469 | ctrl->value = (cadet_getvol() == 0); | |
470 | break; | |
471 | case V4L2_CID_AUDIO_VOLUME: | |
472 | ctrl->value = cadet_getvol(); | |
473 | break; | |
474 | default: | |
475 | return -EINVAL; | |
1da177e4 | 476 | } |
c1c4fd3e | 477 | return 0; |
1da177e4 LT |
478 | } |
479 | ||
c1c4fd3e DL |
480 | static int vidioc_s_ctrl(struct file *file, void *priv, |
481 | struct v4l2_control *ctrl) | |
1da177e4 | 482 | { |
c1c4fd3e DL |
483 | switch (ctrl->id){ |
484 | case V4L2_CID_AUDIO_MUTE: /* TODO: Handle this correctly */ | |
485 | if (ctrl->value) | |
486 | cadet_setvol(0); | |
487 | else | |
488 | cadet_setvol(0xffff); | |
489 | break; | |
490 | case V4L2_CID_AUDIO_VOLUME: | |
491 | cadet_setvol(ctrl->value); | |
492 | break; | |
493 | default: | |
494 | return -EINVAL; | |
495 | } | |
496 | return 0; | |
497 | } | |
498 | ||
499 | static int vidioc_g_audio(struct file *file, void *priv, | |
500 | struct v4l2_audio *a) | |
501 | { | |
502 | if (a->index > 1) | |
503 | return -EINVAL; | |
504 | strcpy(a->name, "Radio"); | |
505 | a->capability = V4L2_AUDCAP_STEREO; | |
506 | return 0; | |
507 | } | |
508 | ||
509 | static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i) | |
510 | { | |
511 | *i = 0; | |
512 | return 0; | |
513 | } | |
514 | ||
515 | static int vidioc_s_input(struct file *filp, void *priv, unsigned int i) | |
516 | { | |
517 | if (i != 0) | |
518 | return -EINVAL; | |
519 | return 0; | |
520 | } | |
521 | ||
522 | static int vidioc_s_audio(struct file *file, void *priv, | |
523 | struct v4l2_audio *a) | |
524 | { | |
525 | if (a->index != 0) | |
526 | return -EINVAL; | |
527 | return 0; | |
1da177e4 LT |
528 | } |
529 | ||
c0c7fa09 HK |
530 | static int |
531 | cadet_open(struct inode *inode, struct file *file) | |
1da177e4 | 532 | { |
1da177e4 | 533 | users++; |
c0c7fa09 | 534 | if (1 == users) init_waitqueue_head(&read_queue); |
1da177e4 LT |
535 | return 0; |
536 | } | |
537 | ||
c0c7fa09 HK |
538 | static int |
539 | cadet_release(struct inode *inode, struct file *file) | |
1da177e4 | 540 | { |
1da177e4 | 541 | users--; |
c0c7fa09 HK |
542 | if (0 == users){ |
543 | del_timer_sync(&readtimer); | |
544 | rdsstat=0; | |
545 | } | |
546 | return 0; | |
547 | } | |
548 | ||
549 | static unsigned int | |
550 | cadet_poll(struct file *file, struct poll_table_struct *wait) | |
551 | { | |
552 | poll_wait(file,&read_queue,wait); | |
553 | if(rdsin != rdsout) | |
554 | return POLLIN | POLLRDNORM; | |
1da177e4 LT |
555 | return 0; |
556 | } | |
557 | ||
558 | ||
fa027c2a | 559 | static const struct file_operations cadet_fops = { |
1da177e4 LT |
560 | .owner = THIS_MODULE, |
561 | .open = cadet_open, | |
562 | .release = cadet_release, | |
563 | .read = cadet_read, | |
c1c4fd3e | 564 | .ioctl = video_ioctl2, |
c0c7fa09 | 565 | .poll = cadet_poll, |
0d0fbf81 | 566 | .compat_ioctl = v4l_compat_ioctl32, |
1da177e4 LT |
567 | .llseek = no_llseek, |
568 | }; | |
569 | ||
570 | static struct video_device cadet_radio= | |
571 | { | |
572 | .owner = THIS_MODULE, | |
573 | .name = "Cadet radio", | |
574 | .type = VID_TYPE_TUNER, | |
1da177e4 | 575 | .fops = &cadet_fops, |
c1c4fd3e DL |
576 | .vidioc_querycap = vidioc_querycap, |
577 | .vidioc_g_tuner = vidioc_g_tuner, | |
578 | .vidioc_s_tuner = vidioc_s_tuner, | |
579 | .vidioc_g_frequency = vidioc_g_frequency, | |
580 | .vidioc_s_frequency = vidioc_s_frequency, | |
581 | .vidioc_queryctrl = vidioc_queryctrl, | |
582 | .vidioc_g_ctrl = vidioc_g_ctrl, | |
583 | .vidioc_s_ctrl = vidioc_s_ctrl, | |
584 | .vidioc_g_audio = vidioc_g_audio, | |
585 | .vidioc_s_audio = vidioc_s_audio, | |
586 | .vidioc_g_input = vidioc_g_input, | |
587 | .vidioc_s_input = vidioc_s_input, | |
1da177e4 LT |
588 | }; |
589 | ||
044dfc99 BH |
590 | #ifdef CONFIG_PNP |
591 | ||
1da177e4 LT |
592 | static struct pnp_device_id cadet_pnp_devices[] = { |
593 | /* ADS Cadet AM/FM Radio Card */ | |
594 | {.id = "MSM0c24", .driver_data = 0}, | |
595 | {.id = ""} | |
596 | }; | |
597 | ||
598 | MODULE_DEVICE_TABLE(pnp, cadet_pnp_devices); | |
599 | ||
600 | static int cadet_pnp_probe(struct pnp_dev * dev, const struct pnp_device_id *dev_id) | |
601 | { | |
602 | if (!dev) | |
603 | return -ENODEV; | |
604 | /* only support one device */ | |
605 | if (io > 0) | |
606 | return -EBUSY; | |
607 | ||
608 | if (!pnp_port_valid(dev, 0)) { | |
609 | return -ENODEV; | |
610 | } | |
611 | ||
612 | io = pnp_port_start(dev, 0); | |
613 | ||
614 | printk ("radio-cadet: PnP reports device at %#x\n", io); | |
615 | ||
616 | return io; | |
617 | } | |
618 | ||
619 | static struct pnp_driver cadet_pnp_driver = { | |
620 | .name = "radio-cadet", | |
621 | .id_table = cadet_pnp_devices, | |
622 | .probe = cadet_pnp_probe, | |
623 | .remove = NULL, | |
624 | }; | |
625 | ||
044dfc99 BH |
626 | #else |
627 | static struct pnp_driver cadet_pnp_driver; | |
628 | #endif | |
629 | ||
1da177e4 LT |
630 | static int cadet_probe(void) |
631 | { | |
4286c6f6 | 632 | static int iovals[8]={0x330,0x332,0x334,0x336,0x338,0x33a,0x33c,0x33e}; |
1da177e4 LT |
633 | int i; |
634 | ||
635 | for(i=0;i<8;i++) { | |
4286c6f6 | 636 | io=iovals[i]; |
f1ac046d | 637 | if (request_region(io, 2, "cadet-probe")) { |
4286c6f6 | 638 | cadet_setfreq(1410); |
1da177e4 LT |
639 | if(cadet_getfreq()==1410) { |
640 | release_region(io, 2); | |
4286c6f6 | 641 | return io; |
1da177e4 LT |
642 | } |
643 | release_region(io, 2); | |
644 | } | |
645 | } | |
646 | return -1; | |
647 | } | |
648 | ||
4286c6f6 | 649 | /* |
1da177e4 LT |
650 | * io should only be set if the user has used something like |
651 | * isapnp (the userspace program) to initialize this card for us | |
652 | */ | |
653 | ||
654 | static int __init cadet_init(void) | |
655 | { | |
656 | spin_lock_init(&cadet_io_lock); | |
4286c6f6 | 657 | |
1da177e4 LT |
658 | /* |
659 | * If a probe was requested then probe ISAPnP first (safest) | |
660 | */ | |
661 | if (io < 0) | |
662 | pnp_register_driver(&cadet_pnp_driver); | |
663 | /* | |
664 | * If that fails then probe unsafely if probe is requested | |
665 | */ | |
666 | if(io < 0) | |
667 | io = cadet_probe (); | |
668 | ||
669 | /* | |
670 | * Else we bail out | |
671 | */ | |
4286c6f6 MCC |
672 | |
673 | if(io < 0) { | |
674 | #ifdef MODULE | |
1da177e4 LT |
675 | printk(KERN_ERR "You must set an I/O address with io=0x???\n"); |
676 | #endif | |
4286c6f6 | 677 | goto fail; |
1da177e4 LT |
678 | } |
679 | if (!request_region(io,2,"cadet")) | |
680 | goto fail; | |
681 | if(video_register_device(&cadet_radio,VFL_TYPE_RADIO,radio_nr)==-1) { | |
682 | release_region(io,2); | |
683 | goto fail; | |
684 | } | |
685 | printk(KERN_INFO "ADS Cadet Radio Card at 0x%x\n",io); | |
686 | return 0; | |
687 | fail: | |
688 | pnp_unregister_driver(&cadet_pnp_driver); | |
689 | return -1; | |
690 | } | |
691 | ||
692 | ||
693 | ||
694 | MODULE_AUTHOR("Fred Gleason, Russell Kroll, Quay Lu, Donald Song, Jason Lewis, Scott McGrath, William McGrath"); | |
695 | MODULE_DESCRIPTION("A driver for the ADS Cadet AM/FM/RDS radio card."); | |
696 | MODULE_LICENSE("GPL"); | |
697 | ||
698 | module_param(io, int, 0); | |
699 | MODULE_PARM_DESC(io, "I/O address of Cadet card (0x330,0x332,0x334,0x336,0x338,0x33a,0x33c,0x33e)"); | |
700 | module_param(radio_nr, int, 0); | |
701 | ||
702 | static void __exit cadet_cleanup_module(void) | |
703 | { | |
704 | video_unregister_device(&cadet_radio); | |
705 | release_region(io,2); | |
706 | pnp_unregister_driver(&cadet_pnp_driver); | |
707 | } | |
708 | ||
709 | module_init(cadet_init); | |
710 | module_exit(cadet_cleanup_module); | |
711 |