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1da177e4 LT |
1 | /* |
2 | * forte.c - ForteMedia FM801 OSS Driver | |
3 | * | |
4 | * Written by Martin K. Petersen <mkp@mkp.net> | |
5 | * Copyright (C) 2002 Hewlett-Packard Company | |
6 | * Portions Copyright (C) 2003 Martin K. Petersen | |
7 | * | |
8 | * Latest version: http://mkp.net/forte/ | |
9 | * | |
10 | * Based upon the ALSA FM801 driver by Jaroslav Kysela and OSS drivers | |
11 | * by Thomas Sailer, Alan Cox, Zach Brown, and Jeff Garzik. Thanks | |
12 | * guys! | |
13 | * | |
14 | * This program is free software; you can redistribute it and/or | |
15 | * modify it under the terms of the GNU General Public License version | |
16 | * 2 as published by the Free Software Foundation. | |
17 | * | |
18 | * This program is distributed in the hope that it will be useful, but | |
19 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
21 | * General Public License for more details. | |
22 | * | |
23 | * You should have received a copy of the GNU General Public License | |
24 | * along with this program; if not, write to the Free Software | |
25 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | |
26 | * USA | |
27 | * | |
28 | */ | |
29 | ||
30 | #include <linux/config.h> | |
31 | #include <linux/module.h> | |
32 | #include <linux/kernel.h> | |
33 | ||
34 | #include <linux/init.h> | |
35 | #include <linux/spinlock.h> | |
36 | #include <linux/pci.h> | |
37 | ||
38 | #include <linux/delay.h> | |
39 | #include <linux/poll.h> | |
40 | ||
41 | #include <linux/sound.h> | |
42 | #include <linux/ac97_codec.h> | |
43 | #include <linux/interrupt.h> | |
44 | ||
45 | #include <linux/proc_fs.h> | |
46 | ||
47 | #include <asm/uaccess.h> | |
48 | #include <asm/io.h> | |
49 | ||
50 | #define DRIVER_NAME "forte" | |
51 | #define DRIVER_VERSION "$Id: forte.c,v 1.63 2003/03/01 05:32:42 mkp Exp $" | |
52 | #define PFX DRIVER_NAME ": " | |
53 | ||
54 | #undef M_DEBUG | |
55 | ||
56 | #ifdef M_DEBUG | |
57 | #define DPRINTK(args...) printk(KERN_WARNING args) | |
58 | #else | |
59 | #define DPRINTK(args...) | |
60 | #endif | |
61 | ||
62 | /* Card capabilities */ | |
63 | #define FORTE_CAPS (DSP_CAP_MMAP | DSP_CAP_TRIGGER) | |
64 | ||
65 | /* Supported audio formats */ | |
66 | #define FORTE_FMTS (AFMT_U8 | AFMT_S16_LE) | |
67 | ||
68 | /* Buffers */ | |
69 | #define FORTE_MIN_FRAG_SIZE 256 | |
70 | #define FORTE_MAX_FRAG_SIZE PAGE_SIZE | |
71 | #define FORTE_DEF_FRAG_SIZE 256 | |
72 | #define FORTE_MIN_FRAGMENTS 2 | |
73 | #define FORTE_MAX_FRAGMENTS 256 | |
74 | #define FORTE_DEF_FRAGMENTS 2 | |
75 | #define FORTE_MIN_BUF_MSECS 500 | |
76 | #define FORTE_MAX_BUF_MSECS 1000 | |
77 | ||
78 | /* PCI BARs */ | |
79 | #define FORTE_PCM_VOL 0x00 /* PCM Output Volume */ | |
80 | #define FORTE_FM_VOL 0x02 /* FM Output Volume */ | |
81 | #define FORTE_I2S_VOL 0x04 /* I2S Volume */ | |
82 | #define FORTE_REC_SRC 0x06 /* Record Source */ | |
83 | #define FORTE_PLY_CTRL 0x08 /* Playback Control */ | |
84 | #define FORTE_PLY_COUNT 0x0a /* Playback Count */ | |
85 | #define FORTE_PLY_BUF1 0x0c /* Playback Buffer I */ | |
86 | #define FORTE_PLY_BUF2 0x10 /* Playback Buffer II */ | |
87 | #define FORTE_CAP_CTRL 0x14 /* Capture Control */ | |
88 | #define FORTE_CAP_COUNT 0x16 /* Capture Count */ | |
89 | #define FORTE_CAP_BUF1 0x18 /* Capture Buffer I */ | |
90 | #define FORTE_CAP_BUF2 0x1c /* Capture Buffer II */ | |
91 | #define FORTE_CODEC_CTRL 0x22 /* Codec Control */ | |
92 | #define FORTE_I2S_MODE 0x24 /* I2S Mode Control */ | |
93 | #define FORTE_VOLUME 0x26 /* Volume Up/Down/Mute Status */ | |
94 | #define FORTE_I2C_CTRL 0x29 /* I2C Control */ | |
95 | #define FORTE_AC97_CMD 0x2a /* AC'97 Command */ | |
96 | #define FORTE_AC97_DATA 0x2c /* AC'97 Data */ | |
97 | #define FORTE_MPU401_DATA 0x30 /* MPU401 Data */ | |
98 | #define FORTE_MPU401_CMD 0x31 /* MPU401 Command */ | |
99 | #define FORTE_GPIO_CTRL 0x52 /* General Purpose I/O Control */ | |
100 | #define FORTE_GEN_CTRL 0x54 /* General Control */ | |
101 | #define FORTE_IRQ_MASK 0x56 /* Interrupt Mask */ | |
102 | #define FORTE_IRQ_STATUS 0x5a /* Interrupt Status */ | |
103 | #define FORTE_OPL3_BANK0 0x68 /* OPL3 Status Read / Bank 0 Write */ | |
104 | #define FORTE_OPL3_DATA0 0x69 /* OPL3 Data 0 Write */ | |
105 | #define FORTE_OPL3_BANK1 0x6a /* OPL3 Bank 1 Write */ | |
106 | #define FORTE_OPL3_DATA1 0x6b /* OPL3 Bank 1 Write */ | |
107 | #define FORTE_POWERDOWN 0x70 /* Blocks Power Down Control */ | |
108 | ||
109 | #define FORTE_CAP_OFFSET FORTE_CAP_CTRL - FORTE_PLY_CTRL | |
110 | ||
111 | #define FORTE_AC97_ADDR_SHIFT 10 | |
112 | ||
113 | /* Playback and record control register bits */ | |
114 | #define FORTE_BUF1_LAST (1<<1) | |
115 | #define FORTE_BUF2_LAST (1<<2) | |
116 | #define FORTE_START (1<<5) | |
117 | #define FORTE_PAUSE (1<<6) | |
118 | #define FORTE_IMMED_STOP (1<<7) | |
119 | #define FORTE_RATE_SHIFT 8 | |
120 | #define FORTE_RATE_MASK (15 << FORTE_RATE_SHIFT) | |
121 | #define FORTE_CHANNELS_4 (1<<12) /* Playback only */ | |
122 | #define FORTE_CHANNELS_6 (2<<12) /* Playback only */ | |
123 | #define FORTE_CHANNELS_6MS (3<<12) /* Playback only */ | |
124 | #define FORTE_CHANNELS_MASK (3<<12) | |
125 | #define FORTE_16BIT (1<<14) | |
126 | #define FORTE_STEREO (1<<15) | |
127 | ||
128 | /* IRQ status bits */ | |
129 | #define FORTE_IRQ_PLAYBACK (1<<8) | |
130 | #define FORTE_IRQ_CAPTURE (1<<9) | |
131 | #define FORTE_IRQ_VOLUME (1<<14) | |
132 | #define FORTE_IRQ_MPU (1<<15) | |
133 | ||
134 | /* CODEC control */ | |
135 | #define FORTE_CC_CODEC_RESET (1<<5) | |
136 | #define FORTE_CC_AC97_RESET (1<<6) | |
137 | ||
138 | /* AC97 cmd */ | |
139 | #define FORTE_AC97_WRITE (0<<7) | |
140 | #define FORTE_AC97_READ (1<<7) | |
141 | #define FORTE_AC97_DP_INVALID (0<<8) | |
142 | #define FORTE_AC97_DP_VALID (1<<8) | |
143 | #define FORTE_AC97_PORT_RDY (0<<9) | |
144 | #define FORTE_AC97_PORT_BSY (1<<9) | |
145 | ||
146 | ||
147 | struct forte_channel { | |
148 | const char *name; | |
149 | ||
150 | unsigned short ctrl; /* Ctrl BAR contents */ | |
151 | unsigned long iobase; /* Ctrl BAR address */ | |
152 | ||
153 | wait_queue_head_t wait; | |
154 | ||
155 | void *buf; /* Buffer */ | |
156 | dma_addr_t buf_handle; /* Buffer handle */ | |
157 | ||
158 | unsigned int record; | |
159 | unsigned int format; | |
160 | unsigned int rate; | |
161 | unsigned int stereo; | |
162 | ||
163 | unsigned int frag_sz; /* Current fragment size */ | |
164 | unsigned int frag_num; /* Current # of fragments */ | |
165 | unsigned int frag_msecs; /* Milliseconds per frag */ | |
166 | unsigned int buf_sz; /* Current buffer size */ | |
167 | ||
168 | unsigned int hwptr; /* Tail */ | |
169 | unsigned int swptr; /* Head */ | |
170 | unsigned int filled_frags; /* Fragments currently full */ | |
171 | unsigned int next_buf; /* Index of next buffer */ | |
172 | ||
173 | unsigned int active; /* Channel currently in use */ | |
174 | unsigned int mapped; /* mmap */ | |
175 | ||
176 | unsigned int buf_pages; /* Real size of buffer */ | |
177 | unsigned int nr_irqs; /* Number of interrupts */ | |
178 | unsigned int bytes; /* Total bytes */ | |
179 | unsigned int residue; /* Partial fragment */ | |
180 | }; | |
181 | ||
182 | ||
183 | struct forte_chip { | |
184 | struct pci_dev *pci_dev; | |
185 | unsigned long iobase; | |
186 | int irq; | |
187 | ||
188 | struct semaphore open_sem; /* Device access */ | |
189 | spinlock_t lock; /* State */ | |
190 | ||
191 | spinlock_t ac97_lock; | |
192 | struct ac97_codec *ac97; | |
193 | ||
194 | int multichannel; | |
195 | int dsp; /* OSS handle */ | |
196 | int trigger; /* mmap I/O trigger */ | |
197 | ||
198 | struct forte_channel play; | |
199 | struct forte_channel rec; | |
200 | }; | |
201 | ||
202 | ||
203 | static int channels[] = { 2, 4, 6, }; | |
204 | static int rates[] = { 5500, 8000, 9600, 11025, 16000, 19200, | |
205 | 22050, 32000, 38400, 44100, 48000, }; | |
206 | ||
207 | static struct forte_chip *forte; | |
208 | static int found; | |
209 | ||
210 | ||
211 | /* AC97 Codec -------------------------------------------------------------- */ | |
212 | ||
213 | ||
214 | /** | |
215 | * forte_ac97_wait: | |
216 | * @chip: fm801 instance whose AC97 codec to wait on | |
217 | * | |
218 | * FIXME: | |
219 | * Stop busy-waiting | |
220 | */ | |
221 | ||
222 | static inline int | |
223 | forte_ac97_wait (struct forte_chip *chip) | |
224 | { | |
225 | int i = 10000; | |
226 | ||
227 | while ( (inw (chip->iobase + FORTE_AC97_CMD) & FORTE_AC97_PORT_BSY) | |
228 | && i-- ) | |
229 | cpu_relax(); | |
230 | ||
231 | return i == 0; | |
232 | } | |
233 | ||
234 | ||
235 | /** | |
236 | * forte_ac97_read: | |
237 | * @codec: AC97 codec to read from | |
238 | * @reg: register to read | |
239 | */ | |
240 | ||
241 | static u16 | |
242 | forte_ac97_read (struct ac97_codec *codec, u8 reg) | |
243 | { | |
244 | u16 ret = 0; | |
245 | struct forte_chip *chip = codec->private_data; | |
246 | ||
247 | spin_lock (&chip->ac97_lock); | |
248 | ||
249 | /* Knock, knock */ | |
250 | if (forte_ac97_wait (chip)) { | |
251 | printk (KERN_ERR PFX "ac97_read: Serial bus busy\n"); | |
252 | goto out; | |
253 | } | |
254 | ||
255 | /* Send read command */ | |
256 | outw (reg | (1<<7), chip->iobase + FORTE_AC97_CMD); | |
257 | ||
258 | if (forte_ac97_wait (chip)) { | |
259 | printk (KERN_ERR PFX "ac97_read: Bus busy reading reg 0x%x\n", | |
260 | reg); | |
261 | goto out; | |
262 | } | |
263 | ||
264 | /* Sanity checking */ | |
265 | if (inw (chip->iobase + FORTE_AC97_CMD) & FORTE_AC97_DP_INVALID) { | |
266 | printk (KERN_ERR PFX "ac97_read: Invalid data port"); | |
267 | goto out; | |
268 | } | |
269 | ||
270 | /* Fetch result */ | |
271 | ret = inw (chip->iobase + FORTE_AC97_DATA); | |
272 | ||
273 | out: | |
274 | spin_unlock (&chip->ac97_lock); | |
275 | return ret; | |
276 | } | |
277 | ||
278 | ||
279 | /** | |
280 | * forte_ac97_write: | |
281 | * @codec: AC97 codec to send command to | |
282 | * @reg: register to write | |
283 | * @val: value to write | |
284 | */ | |
285 | ||
286 | static void | |
287 | forte_ac97_write (struct ac97_codec *codec, u8 reg, u16 val) | |
288 | { | |
289 | struct forte_chip *chip = codec->private_data; | |
290 | ||
291 | spin_lock (&chip->ac97_lock); | |
292 | ||
293 | /* Knock, knock */ | |
294 | if (forte_ac97_wait (chip)) { | |
295 | printk (KERN_ERR PFX "ac97_write: Serial bus busy\n"); | |
296 | goto out; | |
297 | } | |
298 | ||
299 | outw (val, chip->iobase + FORTE_AC97_DATA); | |
300 | outb (reg | FORTE_AC97_WRITE, chip->iobase + FORTE_AC97_CMD); | |
301 | ||
302 | /* Wait for completion */ | |
303 | if (forte_ac97_wait (chip)) { | |
304 | printk (KERN_ERR PFX "ac97_write: Bus busy after write\n"); | |
305 | goto out; | |
306 | } | |
307 | ||
308 | out: | |
309 | spin_unlock (&chip->ac97_lock); | |
310 | } | |
311 | ||
312 | ||
313 | /* Mixer ------------------------------------------------------------------- */ | |
314 | ||
315 | ||
316 | /** | |
317 | * forte_mixer_open: | |
318 | * @inode: | |
319 | * @file: | |
320 | */ | |
321 | ||
322 | static int | |
323 | forte_mixer_open (struct inode *inode, struct file *file) | |
324 | { | |
325 | struct forte_chip *chip = forte; | |
326 | file->private_data = chip->ac97; | |
327 | return 0; | |
328 | } | |
329 | ||
330 | ||
331 | /** | |
332 | * forte_mixer_release: | |
333 | * @inode: | |
334 | * @file: | |
335 | */ | |
336 | ||
337 | static int | |
338 | forte_mixer_release (struct inode *inode, struct file *file) | |
339 | { | |
340 | /* We will welease Wodewick */ | |
341 | return 0; | |
342 | } | |
343 | ||
344 | ||
345 | /** | |
346 | * forte_mixer_ioctl: | |
347 | * @inode: | |
348 | * @file: | |
349 | */ | |
350 | ||
351 | static int | |
352 | forte_mixer_ioctl (struct inode *inode, struct file *file, | |
353 | unsigned int cmd, unsigned long arg) | |
354 | { | |
355 | struct ac97_codec *codec = (struct ac97_codec *) file->private_data; | |
356 | ||
357 | return codec->mixer_ioctl (codec, cmd, arg); | |
358 | } | |
359 | ||
360 | ||
361 | static struct file_operations forte_mixer_fops = { | |
362 | .owner = THIS_MODULE, | |
363 | .llseek = no_llseek, | |
364 | .ioctl = forte_mixer_ioctl, | |
365 | .open = forte_mixer_open, | |
366 | .release = forte_mixer_release, | |
367 | }; | |
368 | ||
369 | ||
370 | /* Channel ----------------------------------------------------------------- */ | |
371 | ||
372 | /** | |
373 | * forte_channel_reset: | |
374 | * @channel: Channel to reset | |
375 | * | |
376 | * Locking: Must be called with lock held. | |
377 | */ | |
378 | ||
379 | static void | |
380 | forte_channel_reset (struct forte_channel *channel) | |
381 | { | |
382 | if (!channel || !channel->iobase) | |
383 | return; | |
384 | ||
385 | DPRINTK ("%s: channel = %s\n", __FUNCTION__, channel->name); | |
386 | ||
387 | channel->ctrl &= ~FORTE_START; | |
388 | outw (channel->ctrl, channel->iobase + FORTE_PLY_CTRL); | |
389 | ||
390 | /* We always play at least two fragments, hence these defaults */ | |
391 | channel->hwptr = channel->frag_sz; | |
392 | channel->next_buf = 1; | |
393 | channel->swptr = 0; | |
394 | channel->filled_frags = 0; | |
395 | channel->active = 0; | |
396 | channel->bytes = 0; | |
397 | channel->nr_irqs = 0; | |
398 | channel->mapped = 0; | |
399 | channel->residue = 0; | |
400 | } | |
401 | ||
402 | ||
403 | /** | |
404 | * forte_channel_start: | |
405 | * @channel: Channel to start (record/playback) | |
406 | * | |
407 | * Locking: Must be called with lock held. | |
408 | */ | |
409 | ||
410 | static void inline | |
411 | forte_channel_start (struct forte_channel *channel) | |
412 | { | |
413 | if (!channel || !channel->iobase || channel->active) | |
414 | return; | |
415 | ||
416 | channel->ctrl &= ~(FORTE_PAUSE | FORTE_BUF1_LAST | FORTE_BUF2_LAST | |
417 | | FORTE_IMMED_STOP); | |
418 | channel->ctrl |= FORTE_START; | |
419 | channel->active = 1; | |
420 | outw (channel->ctrl, channel->iobase + FORTE_PLY_CTRL); | |
421 | } | |
422 | ||
423 | ||
424 | /** | |
425 | * forte_channel_stop: | |
426 | * @channel: Channel to stop | |
427 | * | |
428 | * Locking: Must be called with lock held. | |
429 | */ | |
430 | ||
431 | static void inline | |
432 | forte_channel_stop (struct forte_channel *channel) | |
433 | { | |
434 | if (!channel || !channel->iobase) | |
435 | return; | |
436 | ||
437 | channel->ctrl &= ~(FORTE_START | FORTE_PAUSE); | |
438 | channel->ctrl |= FORTE_IMMED_STOP; | |
439 | ||
440 | channel->active = 0; | |
441 | outw (channel->ctrl, channel->iobase + FORTE_PLY_CTRL); | |
442 | } | |
443 | ||
444 | ||
445 | /** | |
446 | * forte_channel_pause: | |
447 | * @channel: Channel to pause | |
448 | * | |
449 | * Locking: Must be called with lock held. | |
450 | */ | |
451 | ||
452 | static void inline | |
453 | forte_channel_pause (struct forte_channel *channel) | |
454 | { | |
455 | if (!channel || !channel->iobase) | |
456 | return; | |
457 | ||
458 | channel->ctrl |= FORTE_PAUSE; | |
459 | ||
460 | channel->active = 0; | |
461 | outw (channel->ctrl, channel->iobase + FORTE_PLY_CTRL); | |
462 | } | |
463 | ||
464 | ||
465 | /** | |
466 | * forte_channel_rate: | |
467 | * @channel: Channel whose rate to set. Playback and record are | |
468 | * independent. | |
469 | * @rate: Channel rate in Hz | |
470 | * | |
471 | * Locking: Must be called with lock held. | |
472 | */ | |
473 | ||
474 | static int | |
475 | forte_channel_rate (struct forte_channel *channel, unsigned int rate) | |
476 | { | |
477 | int new_rate; | |
478 | ||
479 | if (!channel || !channel->iobase) | |
480 | return -EINVAL; | |
481 | ||
482 | /* The FM801 only supports a handful of fixed frequencies. | |
483 | * We find the value closest to what userland requested. | |
484 | */ | |
485 | if (rate <= 6250) { rate = 5500; new_rate = 0; } | |
486 | else if (rate <= 8800) { rate = 8000; new_rate = 1; } | |
487 | else if (rate <= 10312) { rate = 9600; new_rate = 2; } | |
488 | else if (rate <= 13512) { rate = 11025; new_rate = 3; } | |
489 | else if (rate <= 17600) { rate = 16000; new_rate = 4; } | |
490 | else if (rate <= 20625) { rate = 19200; new_rate = 5; } | |
491 | else if (rate <= 27025) { rate = 22050; new_rate = 6; } | |
492 | else if (rate <= 35200) { rate = 32000; new_rate = 7; } | |
493 | else if (rate <= 41250) { rate = 38400; new_rate = 8; } | |
494 | else if (rate <= 46050) { rate = 44100; new_rate = 9; } | |
495 | else { rate = 48000; new_rate = 10; } | |
496 | ||
497 | channel->ctrl &= ~FORTE_RATE_MASK; | |
498 | channel->ctrl |= new_rate << FORTE_RATE_SHIFT; | |
499 | channel->rate = rate; | |
500 | ||
501 | DPRINTK ("%s: %s rate = %d\n", __FUNCTION__, channel->name, rate); | |
502 | ||
503 | return rate; | |
504 | } | |
505 | ||
506 | ||
507 | /** | |
508 | * forte_channel_format: | |
509 | * @channel: Channel whose audio format to set | |
510 | * @format: OSS format ID | |
511 | * | |
512 | * Locking: Must be called with lock held. | |
513 | */ | |
514 | ||
515 | static int | |
516 | forte_channel_format (struct forte_channel *channel, int format) | |
517 | { | |
518 | if (!channel || !channel->iobase) | |
519 | return -EINVAL; | |
520 | ||
521 | switch (format) { | |
522 | ||
523 | case AFMT_QUERY: | |
524 | break; | |
525 | ||
526 | case AFMT_U8: | |
527 | channel->ctrl &= ~FORTE_16BIT; | |
528 | channel->format = AFMT_U8; | |
529 | break; | |
530 | ||
531 | case AFMT_S16_LE: | |
532 | default: | |
533 | channel->ctrl |= FORTE_16BIT; | |
534 | channel->format = AFMT_S16_LE; | |
535 | break; | |
536 | } | |
537 | ||
538 | DPRINTK ("%s: %s want %d format, got %d\n", __FUNCTION__, channel->name, | |
539 | format, channel->format); | |
540 | ||
541 | return channel->format; | |
542 | } | |
543 | ||
544 | ||
545 | /** | |
546 | * forte_channel_stereo: | |
547 | * @channel: Channel to toggle | |
548 | * @stereo: 0 for Mono, 1 for Stereo | |
549 | * | |
550 | * Locking: Must be called with lock held. | |
551 | */ | |
552 | ||
553 | static int | |
554 | forte_channel_stereo (struct forte_channel *channel, unsigned int stereo) | |
555 | { | |
556 | int ret; | |
557 | ||
558 | if (!channel || !channel->iobase) | |
559 | return -EINVAL; | |
560 | ||
561 | DPRINTK ("%s: %s stereo = %d\n", __FUNCTION__, channel->name, stereo); | |
562 | ||
563 | switch (stereo) { | |
564 | ||
565 | case 0: | |
566 | channel->ctrl &= ~(FORTE_STEREO | FORTE_CHANNELS_MASK); | |
567 | channel-> stereo = stereo; | |
568 | ret = stereo; | |
569 | break; | |
570 | ||
571 | case 1: | |
572 | channel->ctrl &= ~FORTE_CHANNELS_MASK; | |
573 | channel->ctrl |= FORTE_STEREO; | |
574 | channel-> stereo = stereo; | |
575 | ret = stereo; | |
576 | break; | |
577 | ||
578 | default: | |
579 | DPRINTK ("Unsupported channel format"); | |
580 | ret = -EINVAL; | |
581 | break; | |
582 | } | |
583 | ||
584 | return ret; | |
585 | } | |
586 | ||
587 | ||
588 | /** | |
589 | * forte_channel_buffer: | |
590 | * @channel: Channel whose buffer to set up | |
591 | * | |
592 | * Locking: Must be called with lock held. | |
593 | */ | |
594 | ||
595 | static void | |
596 | forte_channel_buffer (struct forte_channel *channel, int sz, int num) | |
597 | { | |
598 | unsigned int msecs, shift; | |
599 | ||
600 | /* Go away, I'm busy */ | |
601 | if (channel->filled_frags || channel->bytes) | |
602 | return; | |
603 | ||
604 | /* Fragment size must be a power of 2 */ | |
605 | shift = 0; sz++; | |
606 | while (sz >>= 1) | |
607 | shift++; | |
608 | channel->frag_sz = 1 << shift; | |
609 | ||
610 | /* Round fragment size to something reasonable */ | |
611 | if (channel->frag_sz < FORTE_MIN_FRAG_SIZE) | |
612 | channel->frag_sz = FORTE_MIN_FRAG_SIZE; | |
613 | ||
614 | if (channel->frag_sz > FORTE_MAX_FRAG_SIZE) | |
615 | channel->frag_sz = FORTE_MAX_FRAG_SIZE; | |
616 | ||
617 | /* Find fragment length in milliseconds */ | |
618 | msecs = channel->frag_sz / | |
619 | (channel->format == AFMT_S16_LE ? 2 : 1) / | |
620 | (channel->stereo ? 2 : 1) / | |
621 | (channel->rate / 1000); | |
622 | ||
623 | channel->frag_msecs = msecs; | |
624 | ||
625 | /* Pick a suitable number of fragments */ | |
626 | if (msecs * num < FORTE_MIN_BUF_MSECS) | |
627 | num = FORTE_MIN_BUF_MSECS / msecs; | |
628 | ||
629 | if (msecs * num > FORTE_MAX_BUF_MSECS) | |
630 | num = FORTE_MAX_BUF_MSECS / msecs; | |
631 | ||
632 | /* Fragment number must be a power of 2 */ | |
633 | shift = 0; | |
634 | while (num >>= 1) | |
635 | shift++; | |
636 | channel->frag_num = 1 << (shift + 1); | |
637 | ||
638 | /* Round fragment number to something reasonable */ | |
639 | if (channel->frag_num < FORTE_MIN_FRAGMENTS) | |
640 | channel->frag_num = FORTE_MIN_FRAGMENTS; | |
641 | ||
642 | if (channel->frag_num > FORTE_MAX_FRAGMENTS) | |
643 | channel->frag_num = FORTE_MAX_FRAGMENTS; | |
644 | ||
645 | channel->buf_sz = channel->frag_sz * channel->frag_num; | |
646 | ||
647 | DPRINTK ("%s: %s frag_sz = %d, frag_num = %d, buf_sz = %d\n", | |
648 | __FUNCTION__, channel->name, channel->frag_sz, | |
649 | channel->frag_num, channel->buf_sz); | |
650 | } | |
651 | ||
652 | ||
653 | /** | |
654 | * forte_channel_prep: | |
655 | * @channel: Channel whose buffer to prepare | |
656 | * | |
657 | * Locking: Lock held. | |
658 | */ | |
659 | ||
660 | static void | |
661 | forte_channel_prep (struct forte_channel *channel) | |
662 | { | |
663 | struct page *page; | |
664 | int i; | |
665 | ||
666 | if (channel->buf) | |
667 | return; | |
668 | ||
669 | forte_channel_buffer (channel, channel->frag_sz, channel->frag_num); | |
670 | channel->buf_pages = channel->buf_sz >> PAGE_SHIFT; | |
671 | ||
672 | if (channel->buf_sz % PAGE_SIZE) | |
673 | channel->buf_pages++; | |
674 | ||
675 | DPRINTK ("%s: %s frag_sz = %d, frag_num = %d, buf_sz = %d, pg = %d\n", | |
676 | __FUNCTION__, channel->name, channel->frag_sz, | |
677 | channel->frag_num, channel->buf_sz, channel->buf_pages); | |
678 | ||
679 | /* DMA buffer */ | |
680 | channel->buf = pci_alloc_consistent (forte->pci_dev, | |
681 | channel->buf_pages * PAGE_SIZE, | |
682 | &channel->buf_handle); | |
683 | ||
684 | if (!channel->buf || !channel->buf_handle) | |
685 | BUG(); | |
686 | ||
687 | page = virt_to_page (channel->buf); | |
688 | ||
689 | /* FIXME: can this go away ? */ | |
690 | for (i = 0 ; i < channel->buf_pages ; i++) | |
691 | SetPageReserved(page++); | |
692 | ||
693 | /* Prep buffer registers */ | |
694 | outw (channel->frag_sz - 1, channel->iobase + FORTE_PLY_COUNT); | |
695 | outl (channel->buf_handle, channel->iobase + FORTE_PLY_BUF1); | |
696 | outl (channel->buf_handle + channel->frag_sz, | |
697 | channel->iobase + FORTE_PLY_BUF2); | |
698 | ||
699 | /* Reset hwptr */ | |
700 | channel->hwptr = channel->frag_sz; | |
701 | channel->next_buf = 1; | |
702 | ||
703 | DPRINTK ("%s: %s buffer @ %p (%p)\n", __FUNCTION__, channel->name, | |
704 | channel->buf, channel->buf_handle); | |
705 | } | |
706 | ||
707 | ||
708 | /** | |
709 | * forte_channel_drain: | |
710 | * @chip: | |
711 | * @channel: | |
712 | * | |
713 | * Locking: Don't hold the lock. | |
714 | */ | |
715 | ||
716 | static inline int | |
717 | forte_channel_drain (struct forte_channel *channel) | |
718 | { | |
719 | DECLARE_WAITQUEUE (wait, current); | |
720 | unsigned long flags; | |
721 | ||
722 | DPRINTK ("%s\n", __FUNCTION__); | |
723 | ||
724 | if (channel->mapped) { | |
725 | spin_lock_irqsave (&forte->lock, flags); | |
726 | forte_channel_stop (channel); | |
727 | spin_unlock_irqrestore (&forte->lock, flags); | |
728 | return 0; | |
729 | } | |
730 | ||
731 | spin_lock_irqsave (&forte->lock, flags); | |
732 | add_wait_queue (&channel->wait, &wait); | |
733 | ||
734 | for (;;) { | |
735 | if (channel->active == 0 || channel->filled_frags == 1) | |
736 | break; | |
737 | ||
738 | spin_unlock_irqrestore (&forte->lock, flags); | |
739 | ||
740 | __set_current_state (TASK_INTERRUPTIBLE); | |
741 | schedule(); | |
742 | ||
743 | spin_lock_irqsave (&forte->lock, flags); | |
744 | } | |
745 | ||
746 | forte_channel_stop (channel); | |
747 | forte_channel_reset (channel); | |
748 | set_current_state (TASK_RUNNING); | |
749 | remove_wait_queue (&channel->wait, &wait); | |
750 | spin_unlock_irqrestore (&forte->lock, flags); | |
751 | ||
752 | return 0; | |
753 | } | |
754 | ||
755 | ||
756 | /** | |
757 | * forte_channel_init: | |
758 | * @chip: Forte chip instance the channel hangs off | |
759 | * @channel: Channel to initialize | |
760 | * | |
761 | * Description: | |
762 | * Initializes a channel, sets defaults, and allocates | |
763 | * buffers. | |
764 | * | |
765 | * Locking: No lock held. | |
766 | */ | |
767 | ||
768 | static int | |
769 | forte_channel_init (struct forte_chip *chip, struct forte_channel *channel) | |
770 | { | |
771 | DPRINTK ("%s: chip iobase @ %p\n", __FUNCTION__, (void *)chip->iobase); | |
772 | ||
773 | spin_lock_irq (&chip->lock); | |
774 | memset (channel, 0x0, sizeof (*channel)); | |
775 | ||
776 | if (channel == &chip->play) { | |
777 | channel->name = "PCM_OUT"; | |
778 | channel->iobase = chip->iobase; | |
779 | DPRINTK ("%s: PCM-OUT iobase @ %p\n", __FUNCTION__, | |
780 | (void *) channel->iobase); | |
781 | } | |
782 | else if (channel == &chip->rec) { | |
783 | channel->name = "PCM_IN"; | |
784 | channel->iobase = chip->iobase + FORTE_CAP_OFFSET; | |
785 | channel->record = 1; | |
786 | DPRINTK ("%s: PCM-IN iobase @ %p\n", __FUNCTION__, | |
787 | (void *) channel->iobase); | |
788 | } | |
789 | else | |
790 | BUG(); | |
791 | ||
792 | init_waitqueue_head (&channel->wait); | |
793 | ||
794 | /* Defaults: 48kHz, 16-bit, stereo */ | |
795 | channel->ctrl = inw (channel->iobase + FORTE_PLY_CTRL); | |
796 | forte_channel_reset (channel); | |
797 | forte_channel_stereo (channel, 1); | |
798 | forte_channel_format (channel, AFMT_S16_LE); | |
799 | forte_channel_rate (channel, 48000); | |
800 | channel->frag_sz = FORTE_DEF_FRAG_SIZE; | |
801 | channel->frag_num = FORTE_DEF_FRAGMENTS; | |
802 | ||
803 | chip->trigger = 0; | |
804 | spin_unlock_irq (&chip->lock); | |
805 | ||
806 | return 0; | |
807 | } | |
808 | ||
809 | ||
810 | /** | |
811 | * forte_channel_free: | |
812 | * @chip: Chip this channel hangs off | |
813 | * @channel: Channel to nuke | |
814 | * | |
815 | * Description: | |
816 | * Resets channel and frees buffers. | |
817 | * | |
818 | * Locking: Hold your horses. | |
819 | */ | |
820 | ||
821 | static void | |
822 | forte_channel_free (struct forte_chip *chip, struct forte_channel *channel) | |
823 | { | |
824 | DPRINTK ("%s: %s\n", __FUNCTION__, channel->name); | |
825 | ||
826 | if (!channel->buf_handle) | |
827 | return; | |
828 | ||
829 | pci_free_consistent (chip->pci_dev, channel->buf_pages * PAGE_SIZE, | |
830 | channel->buf, channel->buf_handle); | |
831 | ||
832 | memset (channel, 0x0, sizeof (*channel)); | |
833 | } | |
834 | ||
835 | ||
836 | /* DSP --------------------------------------------------------------------- */ | |
837 | ||
838 | ||
839 | /** | |
840 | * forte_dsp_ioctl: | |
841 | */ | |
842 | ||
843 | static int | |
844 | forte_dsp_ioctl (struct inode *inode, struct file *file, unsigned int cmd, | |
845 | unsigned long arg) | |
846 | { | |
847 | int ival=0, ret, rval=0, rd, wr, count; | |
848 | struct forte_chip *chip; | |
849 | struct audio_buf_info abi; | |
850 | struct count_info cinfo; | |
851 | void __user *argp = (void __user *)arg; | |
852 | int __user *p = argp; | |
853 | ||
854 | chip = file->private_data; | |
855 | ||
856 | if (file->f_mode & FMODE_WRITE) | |
857 | wr = 1; | |
858 | else | |
859 | wr = 0; | |
860 | ||
861 | if (file->f_mode & FMODE_READ) | |
862 | rd = 1; | |
863 | else | |
864 | rd = 0; | |
865 | ||
866 | switch (cmd) { | |
867 | ||
868 | case OSS_GETVERSION: | |
869 | return put_user (SOUND_VERSION, p); | |
870 | ||
871 | case SNDCTL_DSP_GETCAPS: | |
872 | DPRINTK ("%s: GETCAPS\n", __FUNCTION__); | |
873 | ||
874 | ival = FORTE_CAPS; /* DUPLEX */ | |
875 | return put_user (ival, p); | |
876 | ||
877 | case SNDCTL_DSP_GETFMTS: | |
878 | DPRINTK ("%s: GETFMTS\n", __FUNCTION__); | |
879 | ||
880 | ival = FORTE_FMTS; /* U8, 16LE */ | |
881 | return put_user (ival, p); | |
882 | ||
883 | case SNDCTL_DSP_SETFMT: /* U8, 16LE */ | |
884 | DPRINTK ("%s: SETFMT\n", __FUNCTION__); | |
885 | ||
886 | if (get_user (ival, p)) | |
887 | return -EFAULT; | |
888 | ||
889 | spin_lock_irq (&chip->lock); | |
890 | ||
891 | if (rd) { | |
892 | forte_channel_stop (&chip->rec); | |
893 | rval = forte_channel_format (&chip->rec, ival); | |
894 | } | |
895 | ||
896 | if (wr) { | |
897 | forte_channel_stop (&chip->rec); | |
898 | rval = forte_channel_format (&chip->play, ival); | |
899 | } | |
900 | ||
901 | spin_unlock_irq (&chip->lock); | |
902 | ||
903 | return put_user (rval, p); | |
904 | ||
905 | case SNDCTL_DSP_STEREO: /* 0 - mono, 1 - stereo */ | |
906 | DPRINTK ("%s: STEREO\n", __FUNCTION__); | |
907 | ||
908 | if (get_user (ival, p)) | |
909 | return -EFAULT; | |
910 | ||
911 | spin_lock_irq (&chip->lock); | |
912 | ||
913 | if (rd) { | |
914 | forte_channel_stop (&chip->rec); | |
915 | rval = forte_channel_stereo (&chip->rec, ival); | |
916 | } | |
917 | ||
918 | if (wr) { | |
919 | forte_channel_stop (&chip->rec); | |
920 | rval = forte_channel_stereo (&chip->play, ival); | |
921 | } | |
922 | ||
923 | spin_unlock_irq (&chip->lock); | |
924 | ||
925 | return put_user (rval, p); | |
926 | ||
927 | case SNDCTL_DSP_CHANNELS: /* 1 - mono, 2 - stereo */ | |
928 | DPRINTK ("%s: CHANNELS\n", __FUNCTION__); | |
929 | ||
930 | if (get_user (ival, p)) | |
931 | return -EFAULT; | |
932 | ||
933 | spin_lock_irq (&chip->lock); | |
934 | ||
935 | if (rd) { | |
936 | forte_channel_stop (&chip->rec); | |
937 | rval = forte_channel_stereo (&chip->rec, ival-1) + 1; | |
938 | } | |
939 | ||
940 | if (wr) { | |
941 | forte_channel_stop (&chip->play); | |
942 | rval = forte_channel_stereo (&chip->play, ival-1) + 1; | |
943 | } | |
944 | ||
945 | spin_unlock_irq (&chip->lock); | |
946 | ||
947 | return put_user (rval, p); | |
948 | ||
949 | case SNDCTL_DSP_SPEED: | |
950 | DPRINTK ("%s: SPEED\n", __FUNCTION__); | |
951 | ||
952 | if (get_user (ival, p)) | |
953 | return -EFAULT; | |
954 | ||
955 | spin_lock_irq (&chip->lock); | |
956 | ||
957 | if (rd) { | |
958 | forte_channel_stop (&chip->rec); | |
959 | rval = forte_channel_rate (&chip->rec, ival); | |
960 | } | |
961 | ||
962 | if (wr) { | |
963 | forte_channel_stop (&chip->play); | |
964 | rval = forte_channel_rate (&chip->play, ival); | |
965 | } | |
966 | ||
967 | spin_unlock_irq (&chip->lock); | |
968 | ||
969 | return put_user(rval, p); | |
970 | ||
971 | case SNDCTL_DSP_GETBLKSIZE: | |
972 | DPRINTK ("%s: GETBLKSIZE\n", __FUNCTION__); | |
973 | ||
974 | spin_lock_irq (&chip->lock); | |
975 | ||
976 | if (rd) | |
977 | ival = chip->rec.frag_sz; | |
978 | ||
979 | if (wr) | |
980 | ival = chip->play.frag_sz; | |
981 | ||
982 | spin_unlock_irq (&chip->lock); | |
983 | ||
984 | return put_user (ival, p); | |
985 | ||
986 | case SNDCTL_DSP_RESET: | |
987 | DPRINTK ("%s: RESET\n", __FUNCTION__); | |
988 | ||
989 | spin_lock_irq (&chip->lock); | |
990 | ||
991 | if (rd) | |
992 | forte_channel_reset (&chip->rec); | |
993 | ||
994 | if (wr) | |
995 | forte_channel_reset (&chip->play); | |
996 | ||
997 | spin_unlock_irq (&chip->lock); | |
998 | ||
999 | return 0; | |
1000 | ||
1001 | case SNDCTL_DSP_SYNC: | |
1002 | DPRINTK ("%s: SYNC\n", __FUNCTION__); | |
1003 | ||
1004 | if (wr) | |
1005 | ret = forte_channel_drain (&chip->play); | |
1006 | ||
1007 | return 0; | |
1008 | ||
1009 | case SNDCTL_DSP_POST: | |
1010 | DPRINTK ("%s: POST\n", __FUNCTION__); | |
1011 | ||
1012 | if (wr) { | |
1013 | spin_lock_irq (&chip->lock); | |
1014 | ||
1015 | if (chip->play.filled_frags) | |
1016 | forte_channel_start (&chip->play); | |
1017 | ||
1018 | spin_unlock_irq (&chip->lock); | |
1019 | } | |
1020 | ||
1021 | return 0; | |
1022 | ||
1023 | case SNDCTL_DSP_SETFRAGMENT: | |
1024 | DPRINTK ("%s: SETFRAGMENT\n", __FUNCTION__); | |
1025 | ||
1026 | if (get_user (ival, p)) | |
1027 | return -EFAULT; | |
1028 | ||
1029 | spin_lock_irq (&chip->lock); | |
1030 | ||
1031 | if (rd) { | |
1032 | forte_channel_buffer (&chip->rec, ival & 0xffff, | |
1033 | (ival >> 16) & 0xffff); | |
1034 | ival = (chip->rec.frag_num << 16) + chip->rec.frag_sz; | |
1035 | } | |
1036 | ||
1037 | if (wr) { | |
1038 | forte_channel_buffer (&chip->play, ival & 0xffff, | |
1039 | (ival >> 16) & 0xffff); | |
1040 | ival = (chip->play.frag_num << 16) +chip->play.frag_sz; | |
1041 | } | |
1042 | ||
1043 | spin_unlock_irq (&chip->lock); | |
1044 | ||
1045 | return put_user (ival, p); | |
1046 | ||
1047 | case SNDCTL_DSP_GETISPACE: | |
1048 | DPRINTK ("%s: GETISPACE\n", __FUNCTION__); | |
1049 | ||
1050 | if (!rd) | |
1051 | return -EINVAL; | |
1052 | ||
1053 | spin_lock_irq (&chip->lock); | |
1054 | ||
1055 | abi.fragstotal = chip->rec.frag_num; | |
1056 | abi.fragsize = chip->rec.frag_sz; | |
1057 | ||
1058 | if (chip->rec.mapped) { | |
1059 | abi.fragments = chip->rec.frag_num - 2; | |
1060 | abi.bytes = abi.fragments * abi.fragsize; | |
1061 | } | |
1062 | else { | |
1063 | abi.fragments = chip->rec.filled_frags; | |
1064 | abi.bytes = abi.fragments * abi.fragsize; | |
1065 | } | |
1066 | ||
1067 | spin_unlock_irq (&chip->lock); | |
1068 | ||
1069 | return copy_to_user (argp, &abi, sizeof (abi)) ? -EFAULT : 0; | |
1070 | ||
1071 | case SNDCTL_DSP_GETIPTR: | |
1072 | DPRINTK ("%s: GETIPTR\n", __FUNCTION__); | |
1073 | ||
1074 | if (!rd) | |
1075 | return -EINVAL; | |
1076 | ||
1077 | spin_lock_irq (&chip->lock); | |
1078 | ||
1079 | if (chip->rec.active) | |
1080 | cinfo.ptr = chip->rec.hwptr; | |
1081 | else | |
1082 | cinfo.ptr = 0; | |
1083 | ||
1084 | cinfo.bytes = chip->rec.bytes; | |
1085 | cinfo.blocks = chip->rec.nr_irqs; | |
1086 | chip->rec.nr_irqs = 0; | |
1087 | ||
1088 | spin_unlock_irq (&chip->lock); | |
1089 | ||
1090 | return copy_to_user (argp, &cinfo, sizeof (cinfo)) ? -EFAULT : 0; | |
1091 | ||
1092 | case SNDCTL_DSP_GETOSPACE: | |
1093 | if (!wr) | |
1094 | return -EINVAL; | |
1095 | ||
1096 | spin_lock_irq (&chip->lock); | |
1097 | ||
1098 | abi.fragstotal = chip->play.frag_num; | |
1099 | abi.fragsize = chip->play.frag_sz; | |
1100 | ||
1101 | if (chip->play.mapped) { | |
1102 | abi.fragments = chip->play.frag_num - 2; | |
1103 | abi.bytes = chip->play.buf_sz; | |
1104 | } | |
1105 | else { | |
1106 | abi.fragments = chip->play.frag_num - | |
1107 | chip->play.filled_frags; | |
1108 | ||
1109 | if (chip->play.residue) | |
1110 | abi.fragments--; | |
1111 | ||
1112 | abi.bytes = abi.fragments * abi.fragsize + | |
1113 | chip->play.residue; | |
1114 | } | |
1115 | ||
1116 | spin_unlock_irq (&chip->lock); | |
1117 | ||
1118 | return copy_to_user (argp, &abi, sizeof (abi)) ? -EFAULT : 0; | |
1119 | ||
1120 | case SNDCTL_DSP_GETOPTR: | |
1121 | if (!wr) | |
1122 | return -EINVAL; | |
1123 | ||
1124 | spin_lock_irq (&chip->lock); | |
1125 | ||
1126 | if (chip->play.active) | |
1127 | cinfo.ptr = chip->play.hwptr; | |
1128 | else | |
1129 | cinfo.ptr = 0; | |
1130 | ||
1131 | cinfo.bytes = chip->play.bytes; | |
1132 | cinfo.blocks = chip->play.nr_irqs; | |
1133 | chip->play.nr_irqs = 0; | |
1134 | ||
1135 | spin_unlock_irq (&chip->lock); | |
1136 | ||
1137 | return copy_to_user (argp, &cinfo, sizeof (cinfo)) ? -EFAULT : 0; | |
1138 | ||
1139 | case SNDCTL_DSP_GETODELAY: | |
1140 | if (!wr) | |
1141 | return -EINVAL; | |
1142 | ||
1143 | spin_lock_irq (&chip->lock); | |
1144 | ||
1145 | if (!chip->play.active) { | |
1146 | ival = 0; | |
1147 | } | |
1148 | else if (chip->play.mapped) { | |
1149 | count = inw (chip->play.iobase + FORTE_PLY_COUNT) + 1; | |
1150 | ival = chip->play.frag_sz - count; | |
1151 | } | |
1152 | else { | |
1153 | ival = chip->play.filled_frags * chip->play.frag_sz; | |
1154 | ||
1155 | if (chip->play.residue) | |
1156 | ival += chip->play.frag_sz - chip->play.residue; | |
1157 | } | |
1158 | ||
1159 | spin_unlock_irq (&chip->lock); | |
1160 | ||
1161 | return put_user (ival, p); | |
1162 | ||
1163 | case SNDCTL_DSP_SETDUPLEX: | |
1164 | DPRINTK ("%s: SETDUPLEX\n", __FUNCTION__); | |
1165 | ||
1166 | return -EINVAL; | |
1167 | ||
1168 | case SNDCTL_DSP_GETTRIGGER: | |
1169 | DPRINTK ("%s: GETTRIGGER\n", __FUNCTION__); | |
1170 | ||
1171 | return put_user (chip->trigger, p); | |
1172 | ||
1173 | case SNDCTL_DSP_SETTRIGGER: | |
1174 | ||
1175 | if (get_user (ival, p)) | |
1176 | return -EFAULT; | |
1177 | ||
1178 | DPRINTK ("%s: SETTRIGGER %d\n", __FUNCTION__, ival); | |
1179 | ||
1180 | if (wr) { | |
1181 | spin_lock_irq (&chip->lock); | |
1182 | ||
1183 | if (ival & PCM_ENABLE_OUTPUT) | |
1184 | forte_channel_start (&chip->play); | |
1185 | else { | |
1186 | chip->trigger = 1; | |
1187 | forte_channel_prep (&chip->play); | |
1188 | forte_channel_stop (&chip->play); | |
1189 | } | |
1190 | ||
1191 | spin_unlock_irq (&chip->lock); | |
1192 | } | |
1193 | else if (rd) { | |
1194 | spin_lock_irq (&chip->lock); | |
1195 | ||
1196 | if (ival & PCM_ENABLE_INPUT) | |
1197 | forte_channel_start (&chip->rec); | |
1198 | else { | |
1199 | chip->trigger = 1; | |
1200 | forte_channel_prep (&chip->rec); | |
1201 | forte_channel_stop (&chip->rec); | |
1202 | } | |
1203 | ||
1204 | spin_unlock_irq (&chip->lock); | |
1205 | } | |
1206 | ||
1207 | return 0; | |
1208 | ||
1209 | case SOUND_PCM_READ_RATE: | |
1210 | DPRINTK ("%s: PCM_READ_RATE\n", __FUNCTION__); | |
1211 | return put_user (chip->play.rate, p); | |
1212 | ||
1213 | case SOUND_PCM_READ_CHANNELS: | |
1214 | DPRINTK ("%s: PCM_READ_CHANNELS\n", __FUNCTION__); | |
1215 | return put_user (chip->play.stereo, p); | |
1216 | ||
1217 | case SOUND_PCM_READ_BITS: | |
1218 | DPRINTK ("%s: PCM_READ_BITS\n", __FUNCTION__); | |
1219 | return put_user (chip->play.format, p); | |
1220 | ||
1221 | case SNDCTL_DSP_NONBLOCK: | |
1222 | DPRINTK ("%s: DSP_NONBLOCK\n", __FUNCTION__); | |
1223 | file->f_flags |= O_NONBLOCK; | |
1224 | return 0; | |
1225 | ||
1226 | default: | |
1227 | DPRINTK ("Unsupported ioctl: %x (%p)\n", cmd, argp); | |
1228 | break; | |
1229 | } | |
1230 | ||
1231 | return -EINVAL; | |
1232 | } | |
1233 | ||
1234 | ||
1235 | /** | |
1236 | * forte_dsp_open: | |
1237 | */ | |
1238 | ||
1239 | static int | |
1240 | forte_dsp_open (struct inode *inode, struct file *file) | |
1241 | { | |
1242 | struct forte_chip *chip = forte; /* FIXME: HACK FROM HELL! */ | |
1243 | ||
1244 | if (file->f_flags & O_NONBLOCK) { | |
1245 | if (down_trylock (&chip->open_sem)) { | |
1246 | DPRINTK ("%s: returning -EAGAIN\n", __FUNCTION__); | |
1247 | return -EAGAIN; | |
1248 | } | |
1249 | } | |
1250 | else { | |
1251 | if (down_interruptible (&chip->open_sem)) { | |
1252 | DPRINTK ("%s: returning -ERESTARTSYS\n", __FUNCTION__); | |
1253 | return -ERESTARTSYS; | |
1254 | } | |
1255 | } | |
1256 | ||
1257 | file->private_data = forte; | |
1258 | ||
1259 | DPRINTK ("%s: dsp opened by %d\n", __FUNCTION__, current->pid); | |
1260 | ||
1261 | if (file->f_mode & FMODE_WRITE) | |
1262 | forte_channel_init (forte, &forte->play); | |
1263 | ||
1264 | if (file->f_mode & FMODE_READ) | |
1265 | forte_channel_init (forte, &forte->rec); | |
1266 | ||
1267 | return nonseekable_open(inode, file); | |
1268 | } | |
1269 | ||
1270 | ||
1271 | /** | |
1272 | * forte_dsp_release: | |
1273 | */ | |
1274 | ||
1275 | static int | |
1276 | forte_dsp_release (struct inode *inode, struct file *file) | |
1277 | { | |
1278 | struct forte_chip *chip = file->private_data; | |
1279 | int ret = 0; | |
1280 | ||
1281 | DPRINTK ("%s: chip @ %p\n", __FUNCTION__, chip); | |
1282 | ||
1283 | if (file->f_mode & FMODE_WRITE) { | |
1284 | forte_channel_drain (&chip->play); | |
1285 | ||
1286 | spin_lock_irq (&chip->lock); | |
1287 | ||
1288 | forte_channel_free (chip, &chip->play); | |
1289 | ||
1290 | spin_unlock_irq (&chip->lock); | |
1291 | } | |
1292 | ||
1293 | if (file->f_mode & FMODE_READ) { | |
1294 | while (chip->rec.filled_frags > 0) | |
1295 | interruptible_sleep_on (&chip->rec.wait); | |
1296 | ||
1297 | spin_lock_irq (&chip->lock); | |
1298 | ||
1299 | forte_channel_stop (&chip->rec); | |
1300 | forte_channel_free (chip, &chip->rec); | |
1301 | ||
1302 | spin_unlock_irq (&chip->lock); | |
1303 | } | |
1304 | ||
1305 | up (&chip->open_sem); | |
1306 | ||
1307 | return ret; | |
1308 | } | |
1309 | ||
1310 | ||
1311 | /** | |
1312 | * forte_dsp_poll: | |
1313 | * | |
1314 | */ | |
1315 | ||
1316 | static unsigned int | |
1317 | forte_dsp_poll (struct file *file, struct poll_table_struct *wait) | |
1318 | { | |
1319 | struct forte_chip *chip; | |
1320 | struct forte_channel *channel; | |
1321 | unsigned int mask = 0; | |
1322 | ||
1323 | chip = file->private_data; | |
1324 | ||
1325 | if (file->f_mode & FMODE_WRITE) { | |
1326 | channel = &chip->play; | |
1327 | ||
1328 | if (channel->active) | |
1329 | poll_wait (file, &channel->wait, wait); | |
1330 | ||
1331 | spin_lock_irq (&chip->lock); | |
1332 | ||
1333 | if (channel->frag_num - channel->filled_frags > 0) | |
1334 | mask |= POLLOUT | POLLWRNORM; | |
1335 | ||
1336 | spin_unlock_irq (&chip->lock); | |
1337 | } | |
1338 | ||
1339 | if (file->f_mode & FMODE_READ) { | |
1340 | channel = &chip->rec; | |
1341 | ||
1342 | if (channel->active) | |
1343 | poll_wait (file, &channel->wait, wait); | |
1344 | ||
1345 | spin_lock_irq (&chip->lock); | |
1346 | ||
1347 | if (channel->filled_frags > 0) | |
1348 | mask |= POLLIN | POLLRDNORM; | |
1349 | ||
1350 | spin_unlock_irq (&chip->lock); | |
1351 | } | |
1352 | ||
1353 | return mask; | |
1354 | } | |
1355 | ||
1356 | ||
1357 | /** | |
1358 | * forte_dsp_mmap: | |
1359 | */ | |
1360 | ||
1361 | static int | |
1362 | forte_dsp_mmap (struct file *file, struct vm_area_struct *vma) | |
1363 | { | |
1364 | struct forte_chip *chip; | |
1365 | struct forte_channel *channel; | |
1366 | unsigned long size; | |
1367 | int ret; | |
1368 | ||
1369 | chip = file->private_data; | |
1370 | ||
1371 | DPRINTK ("%s: start %lXh, size %ld, pgoff %ld\n", __FUNCTION__, | |
1372 | vma->vm_start, vma->vm_end - vma->vm_start, vma->vm_pgoff); | |
1373 | ||
1374 | spin_lock_irq (&chip->lock); | |
1375 | ||
1376 | if (vma->vm_flags & VM_WRITE && chip->play.active) { | |
1377 | ret = -EBUSY; | |
1378 | goto out; | |
1379 | } | |
1380 | ||
1381 | if (vma->vm_flags & VM_READ && chip->rec.active) { | |
1382 | ret = -EBUSY; | |
1383 | goto out; | |
1384 | } | |
1385 | ||
1386 | if (file->f_mode & FMODE_WRITE) | |
1387 | channel = &chip->play; | |
1388 | else if (file->f_mode & FMODE_READ) | |
1389 | channel = &chip->rec; | |
1390 | else { | |
1391 | ret = -EINVAL; | |
1392 | goto out; | |
1393 | } | |
1394 | ||
1395 | forte_channel_prep (channel); | |
1396 | channel->mapped = 1; | |
1397 | ||
1398 | if (vma->vm_pgoff != 0) { | |
1399 | ret = -EINVAL; | |
1400 | goto out; | |
1401 | } | |
1402 | ||
1403 | size = vma->vm_end - vma->vm_start; | |
1404 | ||
1405 | if (size > channel->buf_pages * PAGE_SIZE) { | |
1406 | DPRINTK ("%s: size (%ld) > buf_sz (%d) \n", __FUNCTION__, | |
1407 | size, channel->buf_sz); | |
1408 | ret = -EINVAL; | |
1409 | goto out; | |
1410 | } | |
1411 | ||
1412 | if (remap_pfn_range(vma, vma->vm_start, | |
1413 | virt_to_phys(channel->buf) >> PAGE_SHIFT, | |
1414 | size, vma->vm_page_prot)) { | |
1415 | DPRINTK ("%s: remap el a no worko\n", __FUNCTION__); | |
1416 | ret = -EAGAIN; | |
1417 | goto out; | |
1418 | } | |
1419 | ||
1420 | ret = 0; | |
1421 | ||
1422 | out: | |
1423 | spin_unlock_irq (&chip->lock); | |
1424 | return ret; | |
1425 | } | |
1426 | ||
1427 | ||
1428 | /** | |
1429 | * forte_dsp_write: | |
1430 | */ | |
1431 | ||
1432 | static ssize_t | |
1433 | forte_dsp_write (struct file *file, const char __user *buffer, size_t bytes, | |
1434 | loff_t *ppos) | |
1435 | { | |
1436 | struct forte_chip *chip; | |
1437 | struct forte_channel *channel; | |
1438 | unsigned int i = bytes, sz = 0; | |
1439 | unsigned long flags; | |
1440 | ||
1441 | if (!access_ok (VERIFY_READ, buffer, bytes)) | |
1442 | return -EFAULT; | |
1443 | ||
1444 | chip = (struct forte_chip *) file->private_data; | |
1445 | ||
1446 | if (!chip) | |
1447 | BUG(); | |
1448 | ||
1449 | channel = &chip->play; | |
1450 | ||
1451 | if (!channel) | |
1452 | BUG(); | |
1453 | ||
1454 | spin_lock_irqsave (&chip->lock, flags); | |
1455 | ||
1456 | /* Set up buffers with the right fragment size */ | |
1457 | forte_channel_prep (channel); | |
1458 | ||
1459 | while (i) { | |
1460 | /* All fragment buffers in use -> wait */ | |
1461 | if (channel->frag_num - channel->filled_frags == 0) { | |
1462 | DECLARE_WAITQUEUE (wait, current); | |
1463 | ||
1464 | /* For trigger or non-blocking operation, get out */ | |
1465 | if (chip->trigger || file->f_flags & O_NONBLOCK) { | |
1466 | spin_unlock_irqrestore (&chip->lock, flags); | |
1467 | return -EAGAIN; | |
1468 | } | |
1469 | ||
1470 | /* Otherwise wait for buffers */ | |
1471 | add_wait_queue (&channel->wait, &wait); | |
1472 | ||
1473 | for (;;) { | |
1474 | spin_unlock_irqrestore (&chip->lock, flags); | |
1475 | ||
1476 | set_current_state (TASK_INTERRUPTIBLE); | |
1477 | schedule(); | |
1478 | ||
1479 | spin_lock_irqsave (&chip->lock, flags); | |
1480 | ||
1481 | if (channel->frag_num - channel->filled_frags) | |
1482 | break; | |
1483 | } | |
1484 | ||
1485 | remove_wait_queue (&channel->wait, &wait); | |
1486 | set_current_state (TASK_RUNNING); | |
1487 | ||
1488 | if (signal_pending (current)) { | |
1489 | spin_unlock_irqrestore (&chip->lock, flags); | |
1490 | return -ERESTARTSYS; | |
1491 | } | |
1492 | } | |
1493 | ||
1494 | if (channel->residue) | |
1495 | sz = channel->residue; | |
1496 | else if (i > channel->frag_sz) | |
1497 | sz = channel->frag_sz; | |
1498 | else | |
1499 | sz = i; | |
1500 | ||
1501 | spin_unlock_irqrestore (&chip->lock, flags); | |
1502 | ||
1503 | if (copy_from_user ((void *) channel->buf + channel->swptr, buffer, sz)) | |
1504 | return -EFAULT; | |
1505 | ||
1506 | spin_lock_irqsave (&chip->lock, flags); | |
1507 | ||
1508 | /* Advance software pointer */ | |
1509 | buffer += sz; | |
1510 | channel->swptr += sz; | |
1511 | channel->swptr %= channel->buf_sz; | |
1512 | i -= sz; | |
1513 | ||
1514 | /* Only bump filled_frags if a full fragment has been written */ | |
1515 | if (channel->swptr % channel->frag_sz == 0) { | |
1516 | channel->filled_frags++; | |
1517 | channel->residue = 0; | |
1518 | } | |
1519 | else | |
1520 | channel->residue = channel->frag_sz - sz; | |
1521 | ||
1522 | /* If playback isn't active, start it */ | |
1523 | if (channel->active == 0 && chip->trigger == 0) | |
1524 | forte_channel_start (channel); | |
1525 | } | |
1526 | ||
1527 | spin_unlock_irqrestore (&chip->lock, flags); | |
1528 | ||
1529 | return bytes - i; | |
1530 | } | |
1531 | ||
1532 | ||
1533 | /** | |
1534 | * forte_dsp_read: | |
1535 | */ | |
1536 | ||
1537 | static ssize_t | |
1538 | forte_dsp_read (struct file *file, char __user *buffer, size_t bytes, | |
1539 | loff_t *ppos) | |
1540 | { | |
1541 | struct forte_chip *chip; | |
1542 | struct forte_channel *channel; | |
1543 | unsigned int i = bytes, sz; | |
1544 | unsigned long flags; | |
1545 | ||
1546 | if (!access_ok (VERIFY_WRITE, buffer, bytes)) | |
1547 | return -EFAULT; | |
1548 | ||
1549 | chip = (struct forte_chip *) file->private_data; | |
1550 | ||
1551 | if (!chip) | |
1552 | BUG(); | |
1553 | ||
1554 | channel = &chip->rec; | |
1555 | ||
1556 | if (!channel) | |
1557 | BUG(); | |
1558 | ||
1559 | spin_lock_irqsave (&chip->lock, flags); | |
1560 | ||
1561 | /* Set up buffers with the right fragment size */ | |
1562 | forte_channel_prep (channel); | |
1563 | ||
1564 | /* Start recording */ | |
1565 | if (!chip->trigger) | |
1566 | forte_channel_start (channel); | |
1567 | ||
1568 | while (i) { | |
1569 | /* No fragment buffers in use -> wait */ | |
1570 | if (channel->filled_frags == 0) { | |
1571 | DECLARE_WAITQUEUE (wait, current); | |
1572 | ||
1573 | /* For trigger mode operation, get out */ | |
1574 | if (chip->trigger) { | |
1575 | spin_unlock_irqrestore (&chip->lock, flags); | |
1576 | return -EAGAIN; | |
1577 | } | |
1578 | ||
1579 | add_wait_queue (&channel->wait, &wait); | |
1580 | ||
1581 | for (;;) { | |
1582 | if (channel->active == 0) | |
1583 | break; | |
1584 | ||
1585 | if (channel->filled_frags) | |
1586 | break; | |
1587 | ||
1588 | spin_unlock_irqrestore (&chip->lock, flags); | |
1589 | ||
1590 | set_current_state (TASK_INTERRUPTIBLE); | |
1591 | schedule(); | |
1592 | ||
1593 | spin_lock_irqsave (&chip->lock, flags); | |
1594 | } | |
1595 | ||
1596 | set_current_state (TASK_RUNNING); | |
1597 | remove_wait_queue (&channel->wait, &wait); | |
1598 | } | |
1599 | ||
1600 | if (i > channel->frag_sz) | |
1601 | sz = channel->frag_sz; | |
1602 | else | |
1603 | sz = i; | |
1604 | ||
1605 | spin_unlock_irqrestore (&chip->lock, flags); | |
1606 | ||
1607 | if (copy_to_user (buffer, (void *)channel->buf+channel->swptr, sz)) { | |
1608 | DPRINTK ("%s: copy_to_user failed\n", __FUNCTION__); | |
1609 | return -EFAULT; | |
1610 | } | |
1611 | ||
1612 | spin_lock_irqsave (&chip->lock, flags); | |
1613 | ||
1614 | /* Advance software pointer */ | |
1615 | buffer += sz; | |
1616 | if (channel->filled_frags > 0) | |
1617 | channel->filled_frags--; | |
1618 | channel->swptr += channel->frag_sz; | |
1619 | channel->swptr %= channel->buf_sz; | |
1620 | i -= sz; | |
1621 | } | |
1622 | ||
1623 | spin_unlock_irqrestore (&chip->lock, flags); | |
1624 | ||
1625 | return bytes - i; | |
1626 | } | |
1627 | ||
1628 | ||
1629 | static struct file_operations forte_dsp_fops = { | |
1630 | .owner = THIS_MODULE, | |
1631 | .llseek = &no_llseek, | |
1632 | .read = &forte_dsp_read, | |
1633 | .write = &forte_dsp_write, | |
1634 | .poll = &forte_dsp_poll, | |
1635 | .ioctl = &forte_dsp_ioctl, | |
1636 | .open = &forte_dsp_open, | |
1637 | .release = &forte_dsp_release, | |
1638 | .mmap = &forte_dsp_mmap, | |
1639 | }; | |
1640 | ||
1641 | ||
1642 | /* Common ------------------------------------------------------------------ */ | |
1643 | ||
1644 | ||
1645 | /** | |
1646 | * forte_interrupt: | |
1647 | */ | |
1648 | ||
1649 | static irqreturn_t | |
1650 | forte_interrupt (int irq, void *dev_id, struct pt_regs *regs) | |
1651 | { | |
1652 | struct forte_chip *chip = dev_id; | |
1653 | struct forte_channel *channel = NULL; | |
1654 | u16 status, count; | |
1655 | ||
1656 | status = inw (chip->iobase + FORTE_IRQ_STATUS); | |
1657 | ||
1658 | /* If this is not for us, get outta here ASAP */ | |
1659 | if ((status & (FORTE_IRQ_PLAYBACK | FORTE_IRQ_CAPTURE)) == 0) | |
1660 | return IRQ_NONE; | |
1661 | ||
1662 | if (status & FORTE_IRQ_PLAYBACK) { | |
1663 | channel = &chip->play; | |
1664 | ||
1665 | spin_lock (&chip->lock); | |
1666 | ||
1667 | if (channel->frag_sz == 0) | |
1668 | goto pack; | |
1669 | ||
1670 | /* Declare a fragment done */ | |
1671 | if (channel->filled_frags > 0) | |
1672 | channel->filled_frags--; | |
1673 | channel->bytes += channel->frag_sz; | |
1674 | channel->nr_irqs++; | |
1675 | ||
1676 | /* Flip-flop between buffer I and II */ | |
1677 | channel->next_buf ^= 1; | |
1678 | ||
1679 | /* Advance hardware pointer by fragment size and wrap around */ | |
1680 | channel->hwptr += channel->frag_sz; | |
1681 | channel->hwptr %= channel->buf_sz; | |
1682 | ||
1683 | /* Buffer I or buffer II BAR */ | |
1684 | outl (channel->buf_handle + channel->hwptr, | |
1685 | channel->next_buf == 0 ? | |
1686 | channel->iobase + FORTE_PLY_BUF1 : | |
1687 | channel->iobase + FORTE_PLY_BUF2); | |
1688 | ||
1689 | /* If the currently playing fragment is last, schedule pause */ | |
1690 | if (channel->filled_frags == 1) | |
1691 | forte_channel_pause (channel); | |
1692 | ||
1693 | pack: | |
1694 | /* Acknowledge interrupt */ | |
1695 | outw (FORTE_IRQ_PLAYBACK, chip->iobase + FORTE_IRQ_STATUS); | |
1696 | ||
1697 | if (waitqueue_active (&channel->wait)) | |
1698 | wake_up_all (&channel->wait); | |
1699 | ||
1700 | spin_unlock (&chip->lock); | |
1701 | } | |
1702 | ||
1703 | if (status & FORTE_IRQ_CAPTURE) { | |
1704 | channel = &chip->rec; | |
1705 | spin_lock (&chip->lock); | |
1706 | ||
1707 | /* One fragment filled */ | |
1708 | channel->filled_frags++; | |
1709 | ||
1710 | /* Get # of completed bytes */ | |
1711 | count = inw (channel->iobase + FORTE_PLY_COUNT) + 1; | |
1712 | ||
1713 | if (count == 0) { | |
1714 | DPRINTK ("%s: last, filled_frags = %d\n", __FUNCTION__, | |
1715 | channel->filled_frags); | |
1716 | channel->filled_frags = 0; | |
1717 | goto rack; | |
1718 | } | |
1719 | ||
1720 | /* Buffer I or buffer II BAR */ | |
1721 | outl (channel->buf_handle + channel->hwptr, | |
1722 | channel->next_buf == 0 ? | |
1723 | channel->iobase + FORTE_PLY_BUF1 : | |
1724 | channel->iobase + FORTE_PLY_BUF2); | |
1725 | ||
1726 | /* Flip-flop between buffer I and II */ | |
1727 | channel->next_buf ^= 1; | |
1728 | ||
1729 | /* Advance hardware pointer by fragment size and wrap around */ | |
1730 | channel->hwptr += channel->frag_sz; | |
1731 | channel->hwptr %= channel->buf_sz; | |
1732 | ||
1733 | /* Out of buffers */ | |
1734 | if (channel->filled_frags == channel->frag_num - 1) | |
1735 | forte_channel_stop (channel); | |
1736 | rack: | |
1737 | /* Acknowledge interrupt */ | |
1738 | outw (FORTE_IRQ_CAPTURE, chip->iobase + FORTE_IRQ_STATUS); | |
1739 | ||
1740 | spin_unlock (&chip->lock); | |
1741 | ||
1742 | if (waitqueue_active (&channel->wait)) | |
1743 | wake_up_all (&channel->wait); | |
1744 | } | |
1745 | ||
1746 | return IRQ_HANDLED; | |
1747 | } | |
1748 | ||
1749 | ||
1750 | /** | |
1751 | * forte_proc_read: | |
1752 | */ | |
1753 | ||
1754 | static int | |
1755 | forte_proc_read (char *page, char **start, off_t off, int count, | |
1756 | int *eof, void *data) | |
1757 | { | |
1758 | int i = 0, p_rate, p_chan, r_rate; | |
1759 | unsigned short p_reg, r_reg; | |
1760 | ||
1761 | i += sprintf (page, "ForteMedia FM801 OSS Lite driver\n%s\n \n", | |
1762 | DRIVER_VERSION); | |
1763 | ||
1764 | if (!forte->iobase) | |
1765 | return i; | |
1766 | ||
1767 | p_rate = p_chan = -1; | |
1768 | p_reg = inw (forte->iobase + FORTE_PLY_CTRL); | |
1769 | p_rate = (p_reg >> 8) & 15; | |
1770 | p_chan = (p_reg >> 12) & 3; | |
1771 | ||
1772 | if (p_rate >= 0 || p_rate <= 10) | |
1773 | p_rate = rates[p_rate]; | |
1774 | ||
1775 | if (p_chan >= 0 || p_chan <= 2) | |
1776 | p_chan = channels[p_chan]; | |
1777 | ||
1778 | r_rate = -1; | |
1779 | r_reg = inw (forte->iobase + FORTE_CAP_CTRL); | |
1780 | r_rate = (r_reg >> 8) & 15; | |
1781 | ||
1782 | if (r_rate >= 0 || r_rate <= 10) | |
1783 | r_rate = rates[r_rate]; | |
1784 | ||
1785 | i += sprintf (page + i, | |
1786 | " Playback Capture\n" | |
1787 | "FIFO empty : %-3s %-3s\n" | |
1788 | "Buf1 Last : %-3s %-3s\n" | |
1789 | "Buf2 Last : %-3s %-3s\n" | |
1790 | "Started : %-3s %-3s\n" | |
1791 | "Paused : %-3s %-3s\n" | |
1792 | "Immed Stop : %-3s %-3s\n" | |
1793 | "Rate : %-5d %-5d\n" | |
1794 | "Channels : %-5d -\n" | |
1795 | "16-bit : %-3s %-3s\n" | |
1796 | "Stereo : %-3s %-3s\n" | |
1797 | " \n" | |
1798 | "Buffer Sz : %-6d %-6d\n" | |
1799 | "Frag Sz : %-6d %-6d\n" | |
1800 | "Frag Num : %-6d %-6d\n" | |
1801 | "Frag msecs : %-6d %-6d\n" | |
1802 | "Used Frags : %-6d %-6d\n" | |
1803 | "Mapped : %-3s %-3s\n", | |
1804 | p_reg & 1<<0 ? "yes" : "no", | |
1805 | r_reg & 1<<0 ? "yes" : "no", | |
1806 | p_reg & 1<<1 ? "yes" : "no", | |
1807 | r_reg & 1<<1 ? "yes" : "no", | |
1808 | p_reg & 1<<2 ? "yes" : "no", | |
1809 | r_reg & 1<<2 ? "yes" : "no", | |
1810 | p_reg & 1<<5 ? "yes" : "no", | |
1811 | r_reg & 1<<5 ? "yes" : "no", | |
1812 | p_reg & 1<<6 ? "yes" : "no", | |
1813 | r_reg & 1<<6 ? "yes" : "no", | |
1814 | p_reg & 1<<7 ? "yes" : "no", | |
1815 | r_reg & 1<<7 ? "yes" : "no", | |
1816 | p_rate, r_rate, | |
1817 | p_chan, | |
1818 | p_reg & 1<<14 ? "yes" : "no", | |
1819 | r_reg & 1<<14 ? "yes" : "no", | |
1820 | p_reg & 1<<15 ? "yes" : "no", | |
1821 | r_reg & 1<<15 ? "yes" : "no", | |
1822 | forte->play.buf_sz, forte->rec.buf_sz, | |
1823 | forte->play.frag_sz, forte->rec.frag_sz, | |
1824 | forte->play.frag_num, forte->rec.frag_num, | |
1825 | forte->play.frag_msecs, forte->rec.frag_msecs, | |
1826 | forte->play.filled_frags, forte->rec.filled_frags, | |
1827 | forte->play.mapped ? "yes" : "no", | |
1828 | forte->rec.mapped ? "yes" : "no" | |
1829 | ); | |
1830 | ||
1831 | return i; | |
1832 | } | |
1833 | ||
1834 | ||
1835 | /** | |
1836 | * forte_proc_init: | |
1837 | * | |
1838 | * Creates driver info entries in /proc | |
1839 | */ | |
1840 | ||
1841 | static int __init | |
1842 | forte_proc_init (void) | |
1843 | { | |
1844 | if (!proc_mkdir ("driver/forte", NULL)) | |
1845 | return -EIO; | |
1846 | ||
1847 | if (!create_proc_read_entry ("driver/forte/chip", 0, NULL, forte_proc_read, forte)) { | |
1848 | remove_proc_entry ("driver/forte", NULL); | |
1849 | return -EIO; | |
1850 | } | |
1851 | ||
1852 | if (!create_proc_read_entry("driver/forte/ac97", 0, NULL, ac97_read_proc, forte->ac97)) { | |
1853 | remove_proc_entry ("driver/forte/chip", NULL); | |
1854 | remove_proc_entry ("driver/forte", NULL); | |
1855 | return -EIO; | |
1856 | } | |
1857 | ||
1858 | return 0; | |
1859 | } | |
1860 | ||
1861 | ||
1862 | /** | |
1863 | * forte_proc_remove: | |
1864 | * | |
1865 | * Removes driver info entries in /proc | |
1866 | */ | |
1867 | ||
1868 | static void | |
1869 | forte_proc_remove (void) | |
1870 | { | |
1871 | remove_proc_entry ("driver/forte/ac97", NULL); | |
1872 | remove_proc_entry ("driver/forte/chip", NULL); | |
1873 | remove_proc_entry ("driver/forte", NULL); | |
1874 | } | |
1875 | ||
1876 | ||
1877 | /** | |
1878 | * forte_chip_init: | |
1879 | * @chip: Chip instance to initialize | |
1880 | * | |
1881 | * Description: | |
1882 | * Resets chip, configures codec and registers the driver with | |
1883 | * the sound subsystem. | |
1884 | * | |
1885 | * Press and hold Start for 8 secs, then switch on Run | |
1886 | * and hold for 4 seconds. Let go of Start. Numbers | |
1887 | * assume a properly oiled TWG. | |
1888 | */ | |
1889 | ||
1890 | static int __devinit | |
1891 | forte_chip_init (struct forte_chip *chip) | |
1892 | { | |
1893 | u8 revision; | |
1894 | u16 cmdw; | |
1895 | struct ac97_codec *codec; | |
1896 | ||
1897 | pci_read_config_byte (chip->pci_dev, PCI_REVISION_ID, &revision); | |
1898 | ||
1899 | if (revision >= 0xB1) { | |
1900 | chip->multichannel = 1; | |
1901 | printk (KERN_INFO PFX "Multi-channel device detected.\n"); | |
1902 | } | |
1903 | ||
1904 | /* Reset chip */ | |
1905 | outw (FORTE_CC_CODEC_RESET | FORTE_CC_AC97_RESET, | |
1906 | chip->iobase + FORTE_CODEC_CTRL); | |
1907 | udelay(100); | |
1908 | outw (0, chip->iobase + FORTE_CODEC_CTRL); | |
1909 | ||
1910 | /* Request read from AC97 */ | |
1911 | outw (FORTE_AC97_READ | (0 << FORTE_AC97_ADDR_SHIFT), | |
1912 | chip->iobase + FORTE_AC97_CMD); | |
1913 | mdelay(750); | |
1914 | ||
1915 | if ((inw (chip->iobase + FORTE_AC97_CMD) & (3<<8)) != (1<<8)) { | |
1916 | printk (KERN_INFO PFX "AC97 codec not responding"); | |
1917 | return -EIO; | |
1918 | } | |
1919 | ||
1920 | /* Init volume */ | |
1921 | outw (0x0808, chip->iobase + FORTE_PCM_VOL); | |
1922 | outw (0x9f1f, chip->iobase + FORTE_FM_VOL); | |
1923 | outw (0x8808, chip->iobase + FORTE_I2S_VOL); | |
1924 | ||
1925 | /* I2S control - I2S mode */ | |
1926 | outw (0x0003, chip->iobase + FORTE_I2S_MODE); | |
1927 | ||
1928 | /* Interrupt setup - unmask PLAYBACK & CAPTURE */ | |
1929 | cmdw = inw (chip->iobase + FORTE_IRQ_MASK); | |
1930 | cmdw &= ~0x0003; | |
1931 | outw (cmdw, chip->iobase + FORTE_IRQ_MASK); | |
1932 | ||
1933 | /* Interrupt clear */ | |
1934 | outw (FORTE_IRQ_PLAYBACK|FORTE_IRQ_CAPTURE, | |
1935 | chip->iobase + FORTE_IRQ_STATUS); | |
1936 | ||
1937 | /* Set up the AC97 codec */ | |
1938 | if ((codec = ac97_alloc_codec()) == NULL) | |
1939 | return -ENOMEM; | |
1940 | codec->private_data = chip; | |
1941 | codec->codec_read = forte_ac97_read; | |
1942 | codec->codec_write = forte_ac97_write; | |
1943 | codec->id = 0; | |
1944 | ||
1945 | if (ac97_probe_codec (codec) == 0) { | |
1946 | printk (KERN_ERR PFX "codec probe failed\n"); | |
1947 | ac97_release_codec(codec); | |
1948 | return -1; | |
1949 | } | |
1950 | ||
1951 | /* Register mixer */ | |
1952 | if ((codec->dev_mixer = | |
1953 | register_sound_mixer (&forte_mixer_fops, -1)) < 0) { | |
1954 | printk (KERN_ERR PFX "couldn't register mixer!\n"); | |
1955 | ac97_release_codec(codec); | |
1956 | return -1; | |
1957 | } | |
1958 | ||
1959 | chip->ac97 = codec; | |
1960 | ||
1961 | /* Register DSP */ | |
1962 | if ((chip->dsp = register_sound_dsp (&forte_dsp_fops, -1) ) < 0) { | |
1963 | printk (KERN_ERR PFX "couldn't register dsp!\n"); | |
1964 | return -1; | |
1965 | } | |
1966 | ||
1967 | /* Register with /proc */ | |
1968 | if (forte_proc_init()) { | |
1969 | printk (KERN_ERR PFX "couldn't add entries to /proc!\n"); | |
1970 | return -1; | |
1971 | } | |
1972 | ||
1973 | return 0; | |
1974 | } | |
1975 | ||
1976 | ||
1977 | /** | |
1978 | * forte_probe: | |
1979 | * @pci_dev: PCI struct for probed device | |
1980 | * @pci_id: | |
1981 | * | |
1982 | * Description: | |
1983 | * Allocates chip instance, I/O region, and IRQ | |
1984 | */ | |
1985 | static int __init | |
1986 | forte_probe (struct pci_dev *pci_dev, const struct pci_device_id *pci_id) | |
1987 | { | |
1988 | struct forte_chip *chip; | |
1989 | int ret = 0; | |
1990 | ||
1991 | /* FIXME: Support more than one chip */ | |
1992 | if (found++) | |
1993 | return -EIO; | |
1994 | ||
1995 | /* Ignition */ | |
1996 | if (pci_enable_device (pci_dev)) | |
1997 | return -EIO; | |
1998 | ||
1999 | pci_set_master (pci_dev); | |
2000 | ||
2001 | /* Allocate chip instance and configure */ | |
2002 | forte = (struct forte_chip *) | |
2003 | kmalloc (sizeof (struct forte_chip), GFP_KERNEL); | |
2004 | chip = forte; | |
2005 | ||
2006 | if (chip == NULL) { | |
2007 | printk (KERN_WARNING PFX "Out of memory"); | |
2008 | return -ENOMEM; | |
2009 | } | |
2010 | ||
2011 | memset (chip, 0, sizeof (struct forte_chip)); | |
2012 | chip->pci_dev = pci_dev; | |
2013 | ||
2014 | init_MUTEX(&chip->open_sem); | |
2015 | spin_lock_init (&chip->lock); | |
2016 | spin_lock_init (&chip->ac97_lock); | |
2017 | ||
2018 | if (! request_region (pci_resource_start (pci_dev, 0), | |
2019 | pci_resource_len (pci_dev, 0), DRIVER_NAME)) { | |
2020 | printk (KERN_WARNING PFX "Unable to reserve I/O space"); | |
2021 | ret = -ENOMEM; | |
2022 | goto error; | |
2023 | } | |
2024 | ||
2025 | chip->iobase = pci_resource_start (pci_dev, 0); | |
2026 | chip->irq = pci_dev->irq; | |
2027 | ||
2028 | if (request_irq (chip->irq, forte_interrupt, SA_SHIRQ, DRIVER_NAME, | |
2029 | chip)) { | |
2030 | printk (KERN_WARNING PFX "Unable to reserve IRQ"); | |
2031 | ret = -EIO; | |
2032 | goto error; | |
2033 | } | |
2034 | ||
2035 | pci_set_drvdata (pci_dev, chip); | |
2036 | ||
2037 | printk (KERN_INFO PFX "FM801 chip found at 0x%04lX-0x%04lX IRQ %u\n", | |
2038 | chip->iobase, pci_resource_end (pci_dev, 0), chip->irq); | |
2039 | ||
2040 | /* Power it up */ | |
2041 | if ((ret = forte_chip_init (chip)) == 0) | |
2042 | return 0; | |
2043 | ||
2044 | error: | |
2045 | if (chip->irq) | |
2046 | free_irq (chip->irq, chip); | |
2047 | ||
2048 | if (chip->iobase) | |
2049 | release_region (pci_resource_start (pci_dev, 0), | |
2050 | pci_resource_len (pci_dev, 0)); | |
2051 | ||
2052 | kfree (chip); | |
2053 | ||
2054 | return ret; | |
2055 | } | |
2056 | ||
2057 | ||
2058 | /** | |
2059 | * forte_remove: | |
2060 | * @pci_dev: PCI device to unclaim | |
2061 | * | |
2062 | */ | |
2063 | ||
2064 | static void | |
2065 | forte_remove (struct pci_dev *pci_dev) | |
2066 | { | |
2067 | struct forte_chip *chip = pci_get_drvdata (pci_dev); | |
2068 | ||
2069 | if (chip == NULL) | |
2070 | return; | |
2071 | ||
2072 | /* Turn volume down to avoid popping */ | |
2073 | outw (0x1f1f, chip->iobase + FORTE_PCM_VOL); | |
2074 | outw (0x1f1f, chip->iobase + FORTE_FM_VOL); | |
2075 | outw (0x1f1f, chip->iobase + FORTE_I2S_VOL); | |
2076 | ||
2077 | forte_proc_remove(); | |
2078 | free_irq (chip->irq, chip); | |
2079 | release_region (chip->iobase, pci_resource_len (pci_dev, 0)); | |
2080 | ||
2081 | unregister_sound_dsp (chip->dsp); | |
2082 | unregister_sound_mixer (chip->ac97->dev_mixer); | |
2083 | ac97_release_codec(chip->ac97); | |
2084 | kfree (chip); | |
2085 | ||
2086 | printk (KERN_INFO PFX "driver released\n"); | |
2087 | } | |
2088 | ||
2089 | ||
2090 | static struct pci_device_id forte_pci_ids[] = { | |
2091 | { 0x1319, 0x0801, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, | |
2092 | { 0, } | |
2093 | }; | |
2094 | ||
2095 | ||
2096 | static struct pci_driver forte_pci_driver = { | |
2097 | .name = DRIVER_NAME, | |
2098 | .id_table = forte_pci_ids, | |
2099 | .probe = forte_probe, | |
2100 | .remove = forte_remove, | |
2101 | ||
2102 | }; | |
2103 | ||
2104 | ||
2105 | /** | |
2106 | * forte_init_module: | |
2107 | * | |
2108 | */ | |
2109 | ||
2110 | static int __init | |
2111 | forte_init_module (void) | |
2112 | { | |
2113 | printk (KERN_INFO PFX DRIVER_VERSION "\n"); | |
2114 | ||
2115 | return pci_register_driver (&forte_pci_driver); | |
2116 | } | |
2117 | ||
2118 | ||
2119 | /** | |
2120 | * forte_cleanup_module: | |
2121 | * | |
2122 | */ | |
2123 | ||
2124 | static void __exit | |
2125 | forte_cleanup_module (void) | |
2126 | { | |
2127 | pci_unregister_driver (&forte_pci_driver); | |
2128 | } | |
2129 | ||
2130 | ||
2131 | module_init(forte_init_module); | |
2132 | module_exit(forte_cleanup_module); | |
2133 | ||
2134 | MODULE_AUTHOR("Martin K. Petersen <mkp@mkp.net>"); | |
2135 | MODULE_DESCRIPTION("ForteMedia FM801 OSS Driver"); | |
2136 | MODULE_LICENSE("GPL"); | |
2137 | MODULE_DEVICE_TABLE (pci, forte_pci_ids); |