Root/
1 | /* |
2 | * Low-level ALSA driver for the ENSONIQ SoundScape |
3 | * Copyright (c) by Chris Rankin |
4 | * |
5 | * This driver was written in part using information obtained from |
6 | * the OSS/Free SoundScape driver, written by Hannu Savolainen. |
7 | * |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify |
10 | * it under the terms of the GNU General Public License as published by |
11 | * the Free Software Foundation; either version 2 of the License, or |
12 | * (at your option) any later version. |
13 | * |
14 | * This program is distributed in the hope that it will be useful, |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
17 | * GNU General Public License for more details. |
18 | * |
19 | * You should have received a copy of the GNU General Public License |
20 | * along with this program; if not, write to the Free Software |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
22 | */ |
23 | |
24 | #include <linux/init.h> |
25 | #include <linux/err.h> |
26 | #include <linux/isa.h> |
27 | #include <linux/delay.h> |
28 | #include <linux/firmware.h> |
29 | #include <linux/pnp.h> |
30 | #include <linux/spinlock.h> |
31 | #include <linux/moduleparam.h> |
32 | #include <asm/dma.h> |
33 | #include <sound/core.h> |
34 | #include <sound/wss.h> |
35 | #include <sound/mpu401.h> |
36 | #include <sound/initval.h> |
37 | |
38 | |
39 | MODULE_AUTHOR("Chris Rankin"); |
40 | MODULE_DESCRIPTION("ENSONIQ SoundScape driver"); |
41 | MODULE_LICENSE("GPL"); |
42 | MODULE_FIRMWARE("sndscape.co0"); |
43 | MODULE_FIRMWARE("sndscape.co1"); |
44 | MODULE_FIRMWARE("sndscape.co2"); |
45 | MODULE_FIRMWARE("sndscape.co3"); |
46 | MODULE_FIRMWARE("sndscape.co4"); |
47 | MODULE_FIRMWARE("scope.cod"); |
48 | |
49 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; |
50 | static char* id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; |
51 | static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; |
52 | static long wss_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; |
53 | static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; |
54 | static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; |
55 | static int dma[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; |
56 | static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; |
57 | static bool joystick[SNDRV_CARDS]; |
58 | |
59 | module_param_array(index, int, NULL, 0444); |
60 | MODULE_PARM_DESC(index, "Index number for SoundScape soundcard"); |
61 | |
62 | module_param_array(id, charp, NULL, 0444); |
63 | MODULE_PARM_DESC(id, "Description for SoundScape card"); |
64 | |
65 | module_param_array(port, long, NULL, 0444); |
66 | MODULE_PARM_DESC(port, "Port # for SoundScape driver."); |
67 | |
68 | module_param_array(wss_port, long, NULL, 0444); |
69 | MODULE_PARM_DESC(wss_port, "WSS Port # for SoundScape driver."); |
70 | |
71 | module_param_array(irq, int, NULL, 0444); |
72 | MODULE_PARM_DESC(irq, "IRQ # for SoundScape driver."); |
73 | |
74 | module_param_array(mpu_irq, int, NULL, 0444); |
75 | MODULE_PARM_DESC(mpu_irq, "MPU401 IRQ # for SoundScape driver."); |
76 | |
77 | module_param_array(dma, int, NULL, 0444); |
78 | MODULE_PARM_DESC(dma, "DMA # for SoundScape driver."); |
79 | |
80 | module_param_array(dma2, int, NULL, 0444); |
81 | MODULE_PARM_DESC(dma2, "DMA2 # for SoundScape driver."); |
82 | |
83 | module_param_array(joystick, bool, NULL, 0444); |
84 | MODULE_PARM_DESC(joystick, "Enable gameport."); |
85 | |
86 | #ifdef CONFIG_PNP |
87 | static int isa_registered; |
88 | static int pnp_registered; |
89 | |
90 | static struct pnp_card_device_id sscape_pnpids[] = { |
91 | { .id = "ENS3081", .devs = { { "ENS0000" } } }, /* Soundscape PnP */ |
92 | { .id = "ENS4081", .devs = { { "ENS1011" } } }, /* VIVO90 */ |
93 | { .id = "" } /* end */ |
94 | }; |
95 | |
96 | MODULE_DEVICE_TABLE(pnp_card, sscape_pnpids); |
97 | #endif |
98 | |
99 | |
100 | #define HOST_CTRL_IO(i) ((i) + 2) |
101 | #define HOST_DATA_IO(i) ((i) + 3) |
102 | #define ODIE_ADDR_IO(i) ((i) + 4) |
103 | #define ODIE_DATA_IO(i) ((i) + 5) |
104 | #define CODEC_IO(i) ((i) + 8) |
105 | |
106 | #define IC_ODIE 1 |
107 | #define IC_OPUS 2 |
108 | |
109 | #define RX_READY 0x01 |
110 | #define TX_READY 0x02 |
111 | |
112 | #define CMD_ACK 0x80 |
113 | #define CMD_SET_MIDI_VOL 0x84 |
114 | #define CMD_GET_MIDI_VOL 0x85 |
115 | #define CMD_XXX_MIDI_VOL 0x86 |
116 | #define CMD_SET_EXTMIDI 0x8a |
117 | #define CMD_GET_EXTMIDI 0x8b |
118 | #define CMD_SET_MT32 0x8c |
119 | #define CMD_GET_MT32 0x8d |
120 | |
121 | enum GA_REG { |
122 | GA_INTSTAT_REG = 0, |
123 | GA_INTENA_REG, |
124 | GA_DMAA_REG, |
125 | GA_DMAB_REG, |
126 | GA_INTCFG_REG, |
127 | GA_DMACFG_REG, |
128 | GA_CDCFG_REG, |
129 | GA_SMCFGA_REG, |
130 | GA_SMCFGB_REG, |
131 | GA_HMCTL_REG |
132 | }; |
133 | |
134 | #define DMA_8BIT 0x80 |
135 | |
136 | |
137 | enum card_type { |
138 | MEDIA_FX, /* Sequoia S-1000 */ |
139 | SSCAPE, /* Sequoia S-2000 */ |
140 | SSCAPE_PNP, |
141 | SSCAPE_VIVO, |
142 | }; |
143 | |
144 | struct soundscape { |
145 | spinlock_t lock; |
146 | unsigned io_base; |
147 | int ic_type; |
148 | enum card_type type; |
149 | struct resource *io_res; |
150 | struct resource *wss_res; |
151 | struct snd_wss *chip; |
152 | |
153 | unsigned char midi_vol; |
154 | }; |
155 | |
156 | #define INVALID_IRQ ((unsigned)-1) |
157 | |
158 | |
159 | static inline struct soundscape *get_card_soundscape(struct snd_card *c) |
160 | { |
161 | return (struct soundscape *) (c->private_data); |
162 | } |
163 | |
164 | /* |
165 | * Allocates some kernel memory that we can use for DMA. |
166 | * I think this means that the memory has to map to |
167 | * contiguous pages of physical memory. |
168 | */ |
169 | static struct snd_dma_buffer *get_dmabuf(struct snd_dma_buffer *buf, |
170 | unsigned long size) |
171 | { |
172 | if (buf) { |
173 | if (snd_dma_alloc_pages_fallback(SNDRV_DMA_TYPE_DEV, |
174 | snd_dma_isa_data(), |
175 | size, buf) < 0) { |
176 | snd_printk(KERN_ERR "sscape: Failed to allocate " |
177 | "%lu bytes for DMA\n", |
178 | size); |
179 | return NULL; |
180 | } |
181 | } |
182 | |
183 | return buf; |
184 | } |
185 | |
186 | /* |
187 | * Release the DMA-able kernel memory ... |
188 | */ |
189 | static void free_dmabuf(struct snd_dma_buffer *buf) |
190 | { |
191 | if (buf && buf->area) |
192 | snd_dma_free_pages(buf); |
193 | } |
194 | |
195 | /* |
196 | * This function writes to the SoundScape's control registers, |
197 | * but doesn't do any locking. It's up to the caller to do that. |
198 | * This is why this function is "unsafe" ... |
199 | */ |
200 | static inline void sscape_write_unsafe(unsigned io_base, enum GA_REG reg, |
201 | unsigned char val) |
202 | { |
203 | outb(reg, ODIE_ADDR_IO(io_base)); |
204 | outb(val, ODIE_DATA_IO(io_base)); |
205 | } |
206 | |
207 | /* |
208 | * Write to the SoundScape's control registers, and do the |
209 | * necessary locking ... |
210 | */ |
211 | static void sscape_write(struct soundscape *s, enum GA_REG reg, |
212 | unsigned char val) |
213 | { |
214 | unsigned long flags; |
215 | |
216 | spin_lock_irqsave(&s->lock, flags); |
217 | sscape_write_unsafe(s->io_base, reg, val); |
218 | spin_unlock_irqrestore(&s->lock, flags); |
219 | } |
220 | |
221 | /* |
222 | * Read from the SoundScape's control registers, but leave any |
223 | * locking to the caller. This is why the function is "unsafe" ... |
224 | */ |
225 | static inline unsigned char sscape_read_unsafe(unsigned io_base, |
226 | enum GA_REG reg) |
227 | { |
228 | outb(reg, ODIE_ADDR_IO(io_base)); |
229 | return inb(ODIE_DATA_IO(io_base)); |
230 | } |
231 | |
232 | /* |
233 | * Puts the SoundScape into "host" mode, as compared to "MIDI" mode |
234 | */ |
235 | static inline void set_host_mode_unsafe(unsigned io_base) |
236 | { |
237 | outb(0x0, HOST_CTRL_IO(io_base)); |
238 | } |
239 | |
240 | /* |
241 | * Puts the SoundScape into "MIDI" mode, as compared to "host" mode |
242 | */ |
243 | static inline void set_midi_mode_unsafe(unsigned io_base) |
244 | { |
245 | outb(0x3, HOST_CTRL_IO(io_base)); |
246 | } |
247 | |
248 | /* |
249 | * Read the SoundScape's host-mode control register, but leave |
250 | * any locking issues to the caller ... |
251 | */ |
252 | static inline int host_read_unsafe(unsigned io_base) |
253 | { |
254 | int data = -1; |
255 | if ((inb(HOST_CTRL_IO(io_base)) & RX_READY) != 0) |
256 | data = inb(HOST_DATA_IO(io_base)); |
257 | |
258 | return data; |
259 | } |
260 | |
261 | /* |
262 | * Read the SoundScape's host-mode control register, performing |
263 | * a limited amount of busy-waiting if the register isn't ready. |
264 | * Also leaves all locking-issues to the caller ... |
265 | */ |
266 | static int host_read_ctrl_unsafe(unsigned io_base, unsigned timeout) |
267 | { |
268 | int data; |
269 | |
270 | while (((data = host_read_unsafe(io_base)) < 0) && (timeout != 0)) { |
271 | udelay(100); |
272 | --timeout; |
273 | } /* while */ |
274 | |
275 | return data; |
276 | } |
277 | |
278 | /* |
279 | * Write to the SoundScape's host-mode control registers, but |
280 | * leave any locking issues to the caller ... |
281 | */ |
282 | static inline int host_write_unsafe(unsigned io_base, unsigned char data) |
283 | { |
284 | if ((inb(HOST_CTRL_IO(io_base)) & TX_READY) != 0) { |
285 | outb(data, HOST_DATA_IO(io_base)); |
286 | return 1; |
287 | } |
288 | |
289 | return 0; |
290 | } |
291 | |
292 | /* |
293 | * Write to the SoundScape's host-mode control registers, performing |
294 | * a limited amount of busy-waiting if the register isn't ready. |
295 | * Also leaves all locking-issues to the caller ... |
296 | */ |
297 | static int host_write_ctrl_unsafe(unsigned io_base, unsigned char data, |
298 | unsigned timeout) |
299 | { |
300 | int err; |
301 | |
302 | while (!(err = host_write_unsafe(io_base, data)) && (timeout != 0)) { |
303 | udelay(100); |
304 | --timeout; |
305 | } /* while */ |
306 | |
307 | return err; |
308 | } |
309 | |
310 | |
311 | /* |
312 | * Check that the MIDI subsystem is operational. If it isn't, |
313 | * then we will hang the computer if we try to use it ... |
314 | * |
315 | * NOTE: This check is based upon observation, not documentation. |
316 | */ |
317 | static inline int verify_mpu401(const struct snd_mpu401 *mpu) |
318 | { |
319 | return ((inb(MPU401C(mpu)) & 0xc0) == 0x80); |
320 | } |
321 | |
322 | /* |
323 | * This is apparently the standard way to initailise an MPU-401 |
324 | */ |
325 | static inline void initialise_mpu401(const struct snd_mpu401 *mpu) |
326 | { |
327 | outb(0, MPU401D(mpu)); |
328 | } |
329 | |
330 | /* |
331 | * Tell the SoundScape to activate the AD1845 chip (I think). |
332 | * The AD1845 detection fails if we *don't* do this, so I |
333 | * think that this is a good idea ... |
334 | */ |
335 | static void activate_ad1845_unsafe(unsigned io_base) |
336 | { |
337 | unsigned char val = sscape_read_unsafe(io_base, GA_HMCTL_REG); |
338 | sscape_write_unsafe(io_base, GA_HMCTL_REG, (val & 0xcf) | 0x10); |
339 | sscape_write_unsafe(io_base, GA_CDCFG_REG, 0x80); |
340 | } |
341 | |
342 | /* |
343 | * Do the necessary ALSA-level cleanup to deallocate our driver ... |
344 | */ |
345 | static void soundscape_free(struct snd_card *c) |
346 | { |
347 | struct soundscape *sscape = get_card_soundscape(c); |
348 | release_and_free_resource(sscape->io_res); |
349 | release_and_free_resource(sscape->wss_res); |
350 | free_dma(sscape->chip->dma1); |
351 | } |
352 | |
353 | /* |
354 | * Tell the SoundScape to begin a DMA tranfer using the given channel. |
355 | * All locking issues are left to the caller. |
356 | */ |
357 | static void sscape_start_dma_unsafe(unsigned io_base, enum GA_REG reg) |
358 | { |
359 | sscape_write_unsafe(io_base, reg, |
360 | sscape_read_unsafe(io_base, reg) | 0x01); |
361 | sscape_write_unsafe(io_base, reg, |
362 | sscape_read_unsafe(io_base, reg) & 0xfe); |
363 | } |
364 | |
365 | /* |
366 | * Wait for a DMA transfer to complete. This is a "limited busy-wait", |
367 | * and all locking issues are left to the caller. |
368 | */ |
369 | static int sscape_wait_dma_unsafe(unsigned io_base, enum GA_REG reg, |
370 | unsigned timeout) |
371 | { |
372 | while (!(sscape_read_unsafe(io_base, reg) & 0x01) && (timeout != 0)) { |
373 | udelay(100); |
374 | --timeout; |
375 | } /* while */ |
376 | |
377 | return sscape_read_unsafe(io_base, reg) & 0x01; |
378 | } |
379 | |
380 | /* |
381 | * Wait for the On-Board Processor to return its start-up |
382 | * acknowledgement sequence. This wait is too long for |
383 | * us to perform "busy-waiting", and so we must sleep. |
384 | * This in turn means that we must not be holding any |
385 | * spinlocks when we call this function. |
386 | */ |
387 | static int obp_startup_ack(struct soundscape *s, unsigned timeout) |
388 | { |
389 | unsigned long end_time = jiffies + msecs_to_jiffies(timeout); |
390 | |
391 | do { |
392 | unsigned long flags; |
393 | int x; |
394 | |
395 | spin_lock_irqsave(&s->lock, flags); |
396 | x = host_read_unsafe(s->io_base); |
397 | spin_unlock_irqrestore(&s->lock, flags); |
398 | if (x == 0xfe || x == 0xff) |
399 | return 1; |
400 | |
401 | msleep(10); |
402 | } while (time_before(jiffies, end_time)); |
403 | |
404 | return 0; |
405 | } |
406 | |
407 | /* |
408 | * Wait for the host to return its start-up acknowledgement |
409 | * sequence. This wait is too long for us to perform |
410 | * "busy-waiting", and so we must sleep. This in turn means |
411 | * that we must not be holding any spinlocks when we call |
412 | * this function. |
413 | */ |
414 | static int host_startup_ack(struct soundscape *s, unsigned timeout) |
415 | { |
416 | unsigned long end_time = jiffies + msecs_to_jiffies(timeout); |
417 | |
418 | do { |
419 | unsigned long flags; |
420 | int x; |
421 | |
422 | spin_lock_irqsave(&s->lock, flags); |
423 | x = host_read_unsafe(s->io_base); |
424 | spin_unlock_irqrestore(&s->lock, flags); |
425 | if (x == 0xfe) |
426 | return 1; |
427 | |
428 | msleep(10); |
429 | } while (time_before(jiffies, end_time)); |
430 | |
431 | return 0; |
432 | } |
433 | |
434 | /* |
435 | * Upload a byte-stream into the SoundScape using DMA channel A. |
436 | */ |
437 | static int upload_dma_data(struct soundscape *s, const unsigned char *data, |
438 | size_t size) |
439 | { |
440 | unsigned long flags; |
441 | struct snd_dma_buffer dma; |
442 | int ret; |
443 | unsigned char val; |
444 | |
445 | if (!get_dmabuf(&dma, PAGE_ALIGN(32 * 1024))) |
446 | return -ENOMEM; |
447 | |
448 | spin_lock_irqsave(&s->lock, flags); |
449 | |
450 | /* |
451 | * Reset the board ... |
452 | */ |
453 | val = sscape_read_unsafe(s->io_base, GA_HMCTL_REG); |
454 | sscape_write_unsafe(s->io_base, GA_HMCTL_REG, val & 0x3f); |
455 | |
456 | /* |
457 | * Enable the DMA channels and configure them ... |
458 | */ |
459 | val = (s->chip->dma1 << 4) | DMA_8BIT; |
460 | sscape_write_unsafe(s->io_base, GA_DMAA_REG, val); |
461 | sscape_write_unsafe(s->io_base, GA_DMAB_REG, 0x20); |
462 | |
463 | /* |
464 | * Take the board out of reset ... |
465 | */ |
466 | val = sscape_read_unsafe(s->io_base, GA_HMCTL_REG); |
467 | sscape_write_unsafe(s->io_base, GA_HMCTL_REG, val | 0x80); |
468 | |
469 | /* |
470 | * Upload the firmware to the SoundScape |
471 | * board through the DMA channel ... |
472 | */ |
473 | while (size != 0) { |
474 | unsigned long len; |
475 | |
476 | len = min(size, dma.bytes); |
477 | memcpy(dma.area, data, len); |
478 | data += len; |
479 | size -= len; |
480 | |
481 | snd_dma_program(s->chip->dma1, dma.addr, len, DMA_MODE_WRITE); |
482 | sscape_start_dma_unsafe(s->io_base, GA_DMAA_REG); |
483 | if (!sscape_wait_dma_unsafe(s->io_base, GA_DMAA_REG, 5000)) { |
484 | /* |
485 | * Don't forget to release this spinlock we're holding |
486 | */ |
487 | spin_unlock_irqrestore(&s->lock, flags); |
488 | |
489 | snd_printk(KERN_ERR |
490 | "sscape: DMA upload has timed out\n"); |
491 | ret = -EAGAIN; |
492 | goto _release_dma; |
493 | } |
494 | } /* while */ |
495 | |
496 | set_host_mode_unsafe(s->io_base); |
497 | outb(0x0, s->io_base); |
498 | |
499 | /* |
500 | * Boot the board ... (I think) |
501 | */ |
502 | val = sscape_read_unsafe(s->io_base, GA_HMCTL_REG); |
503 | sscape_write_unsafe(s->io_base, GA_HMCTL_REG, val | 0x40); |
504 | spin_unlock_irqrestore(&s->lock, flags); |
505 | |
506 | /* |
507 | * If all has gone well, then the board should acknowledge |
508 | * the new upload and tell us that it has rebooted OK. We |
509 | * give it 5 seconds (max) ... |
510 | */ |
511 | ret = 0; |
512 | if (!obp_startup_ack(s, 5000)) { |
513 | snd_printk(KERN_ERR "sscape: No response " |
514 | "from on-board processor after upload\n"); |
515 | ret = -EAGAIN; |
516 | } else if (!host_startup_ack(s, 5000)) { |
517 | snd_printk(KERN_ERR |
518 | "sscape: SoundScape failed to initialise\n"); |
519 | ret = -EAGAIN; |
520 | } |
521 | |
522 | _release_dma: |
523 | /* |
524 | * NOTE!!! We are NOT holding any spinlocks at this point !!! |
525 | */ |
526 | sscape_write(s, GA_DMAA_REG, (s->ic_type == IC_OPUS ? 0x40 : 0x70)); |
527 | free_dmabuf(&dma); |
528 | |
529 | return ret; |
530 | } |
531 | |
532 | /* |
533 | * Upload the bootblock(?) into the SoundScape. The only |
534 | * purpose of this block of code seems to be to tell |
535 | * us which version of the microcode we should be using. |
536 | */ |
537 | static int sscape_upload_bootblock(struct snd_card *card) |
538 | { |
539 | struct soundscape *sscape = get_card_soundscape(card); |
540 | unsigned long flags; |
541 | const struct firmware *init_fw = NULL; |
542 | int data = 0; |
543 | int ret; |
544 | |
545 | ret = request_firmware(&init_fw, "scope.cod", card->dev); |
546 | if (ret < 0) { |
547 | snd_printk(KERN_ERR "sscape: Error loading scope.cod"); |
548 | return ret; |
549 | } |
550 | ret = upload_dma_data(sscape, init_fw->data, init_fw->size); |
551 | |
552 | release_firmware(init_fw); |
553 | |
554 | spin_lock_irqsave(&sscape->lock, flags); |
555 | if (ret == 0) |
556 | data = host_read_ctrl_unsafe(sscape->io_base, 100); |
557 | |
558 | if (data & 0x10) |
559 | sscape_write_unsafe(sscape->io_base, GA_SMCFGA_REG, 0x2f); |
560 | |
561 | spin_unlock_irqrestore(&sscape->lock, flags); |
562 | |
563 | data &= 0xf; |
564 | if (ret == 0 && data > 7) { |
565 | snd_printk(KERN_ERR |
566 | "sscape: timeout reading firmware version\n"); |
567 | ret = -EAGAIN; |
568 | } |
569 | |
570 | return (ret == 0) ? data : ret; |
571 | } |
572 | |
573 | /* |
574 | * Upload the microcode into the SoundScape. |
575 | */ |
576 | static int sscape_upload_microcode(struct snd_card *card, int version) |
577 | { |
578 | struct soundscape *sscape = get_card_soundscape(card); |
579 | const struct firmware *init_fw = NULL; |
580 | char name[14]; |
581 | int err; |
582 | |
583 | snprintf(name, sizeof(name), "sndscape.co%d", version); |
584 | |
585 | err = request_firmware(&init_fw, name, card->dev); |
586 | if (err < 0) { |
587 | snd_printk(KERN_ERR "sscape: Error loading sndscape.co%d", |
588 | version); |
589 | return err; |
590 | } |
591 | err = upload_dma_data(sscape, init_fw->data, init_fw->size); |
592 | if (err == 0) |
593 | snd_printk(KERN_INFO "sscape: MIDI firmware loaded %d KBs\n", |
594 | init_fw->size >> 10); |
595 | |
596 | release_firmware(init_fw); |
597 | |
598 | return err; |
599 | } |
600 | |
601 | /* |
602 | * Mixer control for the SoundScape's MIDI device. |
603 | */ |
604 | static int sscape_midi_info(struct snd_kcontrol *ctl, |
605 | struct snd_ctl_elem_info *uinfo) |
606 | { |
607 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
608 | uinfo->count = 1; |
609 | uinfo->value.integer.min = 0; |
610 | uinfo->value.integer.max = 127; |
611 | return 0; |
612 | } |
613 | |
614 | static int sscape_midi_get(struct snd_kcontrol *kctl, |
615 | struct snd_ctl_elem_value *uctl) |
616 | { |
617 | struct snd_wss *chip = snd_kcontrol_chip(kctl); |
618 | struct snd_card *card = chip->card; |
619 | register struct soundscape *s = get_card_soundscape(card); |
620 | unsigned long flags; |
621 | |
622 | spin_lock_irqsave(&s->lock, flags); |
623 | uctl->value.integer.value[0] = s->midi_vol; |
624 | spin_unlock_irqrestore(&s->lock, flags); |
625 | return 0; |
626 | } |
627 | |
628 | static int sscape_midi_put(struct snd_kcontrol *kctl, |
629 | struct snd_ctl_elem_value *uctl) |
630 | { |
631 | struct snd_wss *chip = snd_kcontrol_chip(kctl); |
632 | struct snd_card *card = chip->card; |
633 | struct soundscape *s = get_card_soundscape(card); |
634 | unsigned long flags; |
635 | int change; |
636 | unsigned char new_val; |
637 | |
638 | spin_lock_irqsave(&s->lock, flags); |
639 | |
640 | new_val = uctl->value.integer.value[0] & 127; |
641 | /* |
642 | * We need to put the board into HOST mode before we |
643 | * can send any volume-changing HOST commands ... |
644 | */ |
645 | set_host_mode_unsafe(s->io_base); |
646 | |
647 | /* |
648 | * To successfully change the MIDI volume setting, you seem to |
649 | * have to write a volume command, write the new volume value, |
650 | * and then perform another volume-related command. Perhaps the |
651 | * first command is an "open" and the second command is a "close"? |
652 | */ |
653 | if (s->midi_vol == new_val) { |
654 | change = 0; |
655 | goto __skip_change; |
656 | } |
657 | change = host_write_ctrl_unsafe(s->io_base, CMD_SET_MIDI_VOL, 100) |
658 | && host_write_ctrl_unsafe(s->io_base, new_val, 100) |
659 | && host_write_ctrl_unsafe(s->io_base, CMD_XXX_MIDI_VOL, 100) |
660 | && host_write_ctrl_unsafe(s->io_base, new_val, 100); |
661 | s->midi_vol = new_val; |
662 | __skip_change: |
663 | |
664 | /* |
665 | * Take the board out of HOST mode and back into MIDI mode ... |
666 | */ |
667 | set_midi_mode_unsafe(s->io_base); |
668 | |
669 | spin_unlock_irqrestore(&s->lock, flags); |
670 | return change; |
671 | } |
672 | |
673 | static struct snd_kcontrol_new midi_mixer_ctl = { |
674 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
675 | .name = "MIDI", |
676 | .info = sscape_midi_info, |
677 | .get = sscape_midi_get, |
678 | .put = sscape_midi_put |
679 | }; |
680 | |
681 | /* |
682 | * The SoundScape can use two IRQs from a possible set of four. |
683 | * These IRQs are encoded as bit patterns so that they can be |
684 | * written to the control registers. |
685 | */ |
686 | static unsigned __devinit get_irq_config(int sscape_type, int irq) |
687 | { |
688 | static const int valid_irq[] = { 9, 5, 7, 10 }; |
689 | static const int old_irq[] = { 9, 7, 5, 15 }; |
690 | unsigned cfg; |
691 | |
692 | if (sscape_type == MEDIA_FX) { |
693 | for (cfg = 0; cfg < ARRAY_SIZE(old_irq); ++cfg) |
694 | if (irq == old_irq[cfg]) |
695 | return cfg; |
696 | } else { |
697 | for (cfg = 0; cfg < ARRAY_SIZE(valid_irq); ++cfg) |
698 | if (irq == valid_irq[cfg]) |
699 | return cfg; |
700 | } |
701 | |
702 | return INVALID_IRQ; |
703 | } |
704 | |
705 | /* |
706 | * Perform certain arcane port-checks to see whether there |
707 | * is a SoundScape board lurking behind the given ports. |
708 | */ |
709 | static int __devinit detect_sscape(struct soundscape *s, long wss_io) |
710 | { |
711 | unsigned long flags; |
712 | unsigned d; |
713 | int retval = 0; |
714 | |
715 | spin_lock_irqsave(&s->lock, flags); |
716 | |
717 | /* |
718 | * The following code is lifted from the original OSS driver, |
719 | * and as I don't have a datasheet I cannot really comment |
720 | * on what it is doing... |
721 | */ |
722 | if ((inb(HOST_CTRL_IO(s->io_base)) & 0x78) != 0) |
723 | goto _done; |
724 | |
725 | d = inb(ODIE_ADDR_IO(s->io_base)) & 0xf0; |
726 | if ((d & 0x80) != 0) |
727 | goto _done; |
728 | |
729 | if (d == 0) |
730 | s->ic_type = IC_ODIE; |
731 | else if ((d & 0x60) != 0) |
732 | s->ic_type = IC_OPUS; |
733 | else |
734 | goto _done; |
735 | |
736 | outb(0xfa, ODIE_ADDR_IO(s->io_base)); |
737 | if ((inb(ODIE_ADDR_IO(s->io_base)) & 0x9f) != 0x0a) |
738 | goto _done; |
739 | |
740 | outb(0xfe, ODIE_ADDR_IO(s->io_base)); |
741 | if ((inb(ODIE_ADDR_IO(s->io_base)) & 0x9f) != 0x0e) |
742 | goto _done; |
743 | |
744 | outb(0xfe, ODIE_ADDR_IO(s->io_base)); |
745 | d = inb(ODIE_DATA_IO(s->io_base)); |
746 | if (s->type != SSCAPE_VIVO && (d & 0x9f) != 0x0e) |
747 | goto _done; |
748 | |
749 | if (s->ic_type == IC_OPUS) |
750 | activate_ad1845_unsafe(s->io_base); |
751 | |
752 | if (s->type == SSCAPE_VIVO) |
753 | wss_io += 4; |
754 | |
755 | d = sscape_read_unsafe(s->io_base, GA_HMCTL_REG); |
756 | sscape_write_unsafe(s->io_base, GA_HMCTL_REG, d | 0xc0); |
757 | |
758 | /* wait for WSS codec */ |
759 | for (d = 0; d < 500; d++) { |
760 | if ((inb(wss_io) & 0x80) == 0) |
761 | break; |
762 | spin_unlock_irqrestore(&s->lock, flags); |
763 | msleep(1); |
764 | spin_lock_irqsave(&s->lock, flags); |
765 | } |
766 | |
767 | if ((inb(wss_io) & 0x80) != 0) |
768 | goto _done; |
769 | |
770 | if (inb(wss_io + 2) == 0xff) |
771 | goto _done; |
772 | |
773 | d = sscape_read_unsafe(s->io_base, GA_HMCTL_REG) & 0x3f; |
774 | sscape_write_unsafe(s->io_base, GA_HMCTL_REG, d); |
775 | |
776 | if ((inb(wss_io) & 0x80) != 0) |
777 | s->type = MEDIA_FX; |
778 | |
779 | d = sscape_read_unsafe(s->io_base, GA_HMCTL_REG); |
780 | sscape_write_unsafe(s->io_base, GA_HMCTL_REG, d | 0xc0); |
781 | /* wait for WSS codec */ |
782 | for (d = 0; d < 500; d++) { |
783 | if ((inb(wss_io) & 0x80) == 0) |
784 | break; |
785 | spin_unlock_irqrestore(&s->lock, flags); |
786 | msleep(1); |
787 | spin_lock_irqsave(&s->lock, flags); |
788 | } |
789 | |
790 | /* |
791 | * SoundScape successfully detected! |
792 | */ |
793 | retval = 1; |
794 | |
795 | _done: |
796 | spin_unlock_irqrestore(&s->lock, flags); |
797 | return retval; |
798 | } |
799 | |
800 | /* |
801 | * ALSA callback function, called when attempting to open the MIDI device. |
802 | * Check that the MIDI firmware has been loaded, because we don't want |
803 | * to crash the machine. Also check that someone isn't using the hardware |
804 | * IOCTL device. |
805 | */ |
806 | static int mpu401_open(struct snd_mpu401 *mpu) |
807 | { |
808 | if (!verify_mpu401(mpu)) { |
809 | snd_printk(KERN_ERR "sscape: MIDI disabled, " |
810 | "please load firmware\n"); |
811 | return -ENODEV; |
812 | } |
813 | |
814 | return 0; |
815 | } |
816 | |
817 | /* |
818 | * Initialse an MPU-401 subdevice for MIDI support on the SoundScape. |
819 | */ |
820 | static int __devinit create_mpu401(struct snd_card *card, int devnum, |
821 | unsigned long port, int irq) |
822 | { |
823 | struct soundscape *sscape = get_card_soundscape(card); |
824 | struct snd_rawmidi *rawmidi; |
825 | int err; |
826 | |
827 | err = snd_mpu401_uart_new(card, devnum, MPU401_HW_MPU401, port, |
828 | MPU401_INFO_INTEGRATED, irq, IRQF_DISABLED, |
829 | &rawmidi); |
830 | if (err == 0) { |
831 | struct snd_mpu401 *mpu = rawmidi->private_data; |
832 | mpu->open_input = mpu401_open; |
833 | mpu->open_output = mpu401_open; |
834 | mpu->private_data = sscape; |
835 | |
836 | initialise_mpu401(mpu); |
837 | } |
838 | |
839 | return err; |
840 | } |
841 | |
842 | |
843 | /* |
844 | * Create an AD1845 PCM subdevice on the SoundScape. The AD1845 |
845 | * is very much like a CS4231, with a few extra bits. We will |
846 | * try to support at least some of the extra bits by overriding |
847 | * some of the CS4231 callback. |
848 | */ |
849 | static int __devinit create_ad1845(struct snd_card *card, unsigned port, |
850 | int irq, int dma1, int dma2) |
851 | { |
852 | register struct soundscape *sscape = get_card_soundscape(card); |
853 | struct snd_wss *chip; |
854 | int err; |
855 | int codec_type = WSS_HW_DETECT; |
856 | |
857 | switch (sscape->type) { |
858 | case MEDIA_FX: |
859 | case SSCAPE: |
860 | /* |
861 | * There are some freak examples of early Soundscape cards |
862 | * with CS4231 instead of AD1848/CS4248. Unfortunately, the |
863 | * CS4231 works only in CS4248 compatibility mode on |
864 | * these cards so force it. |
865 | */ |
866 | if (sscape->ic_type != IC_OPUS) |
867 | codec_type = WSS_HW_AD1848; |
868 | break; |
869 | |
870 | case SSCAPE_VIVO: |
871 | port += 4; |
872 | break; |
873 | default: |
874 | break; |
875 | } |
876 | |
877 | err = snd_wss_create(card, port, -1, irq, dma1, dma2, |
878 | codec_type, WSS_HWSHARE_DMA1, &chip); |
879 | if (!err) { |
880 | unsigned long flags; |
881 | struct snd_pcm *pcm; |
882 | |
883 | if (sscape->type != SSCAPE_VIVO) { |
884 | /* |
885 | * The input clock frequency on the SoundScape must |
886 | * be 14.31818 MHz, because we must set this register |
887 | * to get the playback to sound correct ... |
888 | */ |
889 | snd_wss_mce_up(chip); |
890 | spin_lock_irqsave(&chip->reg_lock, flags); |
891 | snd_wss_out(chip, AD1845_CLOCK, 0x20); |
892 | spin_unlock_irqrestore(&chip->reg_lock, flags); |
893 | snd_wss_mce_down(chip); |
894 | |
895 | } |
896 | |
897 | err = snd_wss_pcm(chip, 0, &pcm); |
898 | if (err < 0) { |
899 | snd_printk(KERN_ERR "sscape: No PCM device " |
900 | "for AD1845 chip\n"); |
901 | goto _error; |
902 | } |
903 | |
904 | err = snd_wss_mixer(chip); |
905 | if (err < 0) { |
906 | snd_printk(KERN_ERR "sscape: No mixer device " |
907 | "for AD1845 chip\n"); |
908 | goto _error; |
909 | } |
910 | if (chip->hardware != WSS_HW_AD1848) { |
911 | err = snd_wss_timer(chip, 0, NULL); |
912 | if (err < 0) { |
913 | snd_printk(KERN_ERR "sscape: No timer device " |
914 | "for AD1845 chip\n"); |
915 | goto _error; |
916 | } |
917 | } |
918 | |
919 | if (sscape->type != SSCAPE_VIVO) { |
920 | err = snd_ctl_add(card, |
921 | snd_ctl_new1(&midi_mixer_ctl, chip)); |
922 | if (err < 0) { |
923 | snd_printk(KERN_ERR "sscape: Could not create " |
924 | "MIDI mixer control\n"); |
925 | goto _error; |
926 | } |
927 | } |
928 | |
929 | sscape->chip = chip; |
930 | } |
931 | |
932 | _error: |
933 | return err; |
934 | } |
935 | |
936 | |
937 | /* |
938 | * Create an ALSA soundcard entry for the SoundScape, using |
939 | * the given list of port, IRQ and DMA resources. |
940 | */ |
941 | static int __devinit create_sscape(int dev, struct snd_card *card) |
942 | { |
943 | struct soundscape *sscape = get_card_soundscape(card); |
944 | unsigned dma_cfg; |
945 | unsigned irq_cfg; |
946 | unsigned mpu_irq_cfg; |
947 | struct resource *io_res; |
948 | struct resource *wss_res; |
949 | unsigned long flags; |
950 | int err; |
951 | int val; |
952 | const char *name; |
953 | |
954 | /* |
955 | * Grab IO ports that we will need to probe so that we |
956 | * can detect and control this hardware ... |
957 | */ |
958 | io_res = request_region(port[dev], 8, "SoundScape"); |
959 | if (!io_res) { |
960 | snd_printk(KERN_ERR |
961 | "sscape: can't grab port 0x%lx\n", port[dev]); |
962 | return -EBUSY; |
963 | } |
964 | wss_res = NULL; |
965 | if (sscape->type == SSCAPE_VIVO) { |
966 | wss_res = request_region(wss_port[dev], 4, "SoundScape"); |
967 | if (!wss_res) { |
968 | snd_printk(KERN_ERR "sscape: can't grab port 0x%lx\n", |
969 | wss_port[dev]); |
970 | err = -EBUSY; |
971 | goto _release_region; |
972 | } |
973 | } |
974 | |
975 | /* |
976 | * Grab one DMA channel ... |
977 | */ |
978 | err = request_dma(dma[dev], "SoundScape"); |
979 | if (err < 0) { |
980 | snd_printk(KERN_ERR "sscape: can't grab DMA %d\n", dma[dev]); |
981 | goto _release_region; |
982 | } |
983 | |
984 | spin_lock_init(&sscape->lock); |
985 | sscape->io_res = io_res; |
986 | sscape->wss_res = wss_res; |
987 | sscape->io_base = port[dev]; |
988 | |
989 | if (!detect_sscape(sscape, wss_port[dev])) { |
990 | printk(KERN_ERR "sscape: hardware not detected at 0x%x\n", |
991 | sscape->io_base); |
992 | err = -ENODEV; |
993 | goto _release_dma; |
994 | } |
995 | |
996 | switch (sscape->type) { |
997 | case MEDIA_FX: |
998 | name = "MediaFX/SoundFX"; |
999 | break; |
1000 | case SSCAPE: |
1001 | name = "Soundscape"; |
1002 | break; |
1003 | case SSCAPE_PNP: |
1004 | name = "Soundscape PnP"; |
1005 | break; |
1006 | case SSCAPE_VIVO: |
1007 | name = "Soundscape VIVO"; |
1008 | break; |
1009 | default: |
1010 | name = "unknown Soundscape"; |
1011 | break; |
1012 | } |
1013 | |
1014 | printk(KERN_INFO "sscape: %s card detected at 0x%x, using IRQ %d, DMA %d\n", |
1015 | name, sscape->io_base, irq[dev], dma[dev]); |
1016 | |
1017 | /* |
1018 | * Check that the user didn't pass us garbage data ... |
1019 | */ |
1020 | irq_cfg = get_irq_config(sscape->type, irq[dev]); |
1021 | if (irq_cfg == INVALID_IRQ) { |
1022 | snd_printk(KERN_ERR "sscape: Invalid IRQ %d\n", irq[dev]); |
1023 | return -ENXIO; |
1024 | } |
1025 | |
1026 | mpu_irq_cfg = get_irq_config(sscape->type, mpu_irq[dev]); |
1027 | if (mpu_irq_cfg == INVALID_IRQ) { |
1028 | snd_printk(KERN_ERR "sscape: Invalid IRQ %d\n", mpu_irq[dev]); |
1029 | return -ENXIO; |
1030 | } |
1031 | |
1032 | /* |
1033 | * Tell the on-board devices where their resources are (I think - |
1034 | * I can't be sure without a datasheet ... So many magic values!) |
1035 | */ |
1036 | spin_lock_irqsave(&sscape->lock, flags); |
1037 | |
1038 | sscape_write_unsafe(sscape->io_base, GA_SMCFGA_REG, 0x2e); |
1039 | sscape_write_unsafe(sscape->io_base, GA_SMCFGB_REG, 0x00); |
1040 | |
1041 | /* |
1042 | * Enable and configure the DMA channels ... |
1043 | */ |
1044 | sscape_write_unsafe(sscape->io_base, GA_DMACFG_REG, 0x50); |
1045 | dma_cfg = (sscape->ic_type == IC_OPUS ? 0x40 : 0x70); |
1046 | sscape_write_unsafe(sscape->io_base, GA_DMAA_REG, dma_cfg); |
1047 | sscape_write_unsafe(sscape->io_base, GA_DMAB_REG, 0x20); |
1048 | |
1049 | mpu_irq_cfg |= mpu_irq_cfg << 2; |
1050 | val = sscape_read_unsafe(sscape->io_base, GA_HMCTL_REG) & 0xF7; |
1051 | if (joystick[dev]) |
1052 | val |= 8; |
1053 | sscape_write_unsafe(sscape->io_base, GA_HMCTL_REG, val | 0x10); |
1054 | sscape_write_unsafe(sscape->io_base, GA_INTCFG_REG, 0xf0 | mpu_irq_cfg); |
1055 | sscape_write_unsafe(sscape->io_base, |
1056 | GA_CDCFG_REG, 0x09 | DMA_8BIT |
1057 | | (dma[dev] << 4) | (irq_cfg << 1)); |
1058 | /* |
1059 | * Enable the master IRQ ... |
1060 | */ |
1061 | sscape_write_unsafe(sscape->io_base, GA_INTENA_REG, 0x80); |
1062 | |
1063 | spin_unlock_irqrestore(&sscape->lock, flags); |
1064 | |
1065 | /* |
1066 | * We have now enabled the codec chip, and so we should |
1067 | * detect the AD1845 device ... |
1068 | */ |
1069 | err = create_ad1845(card, wss_port[dev], irq[dev], |
1070 | dma[dev], dma2[dev]); |
1071 | if (err < 0) { |
1072 | snd_printk(KERN_ERR |
1073 | "sscape: No AD1845 device at 0x%lx, IRQ %d\n", |
1074 | wss_port[dev], irq[dev]); |
1075 | goto _release_dma; |
1076 | } |
1077 | strcpy(card->driver, "SoundScape"); |
1078 | strcpy(card->shortname, name); |
1079 | snprintf(card->longname, sizeof(card->longname), |
1080 | "%s at 0x%lx, IRQ %d, DMA1 %d, DMA2 %d\n", |
1081 | name, sscape->chip->port, sscape->chip->irq, |
1082 | sscape->chip->dma1, sscape->chip->dma2); |
1083 | |
1084 | #define MIDI_DEVNUM 0 |
1085 | if (sscape->type != SSCAPE_VIVO) { |
1086 | err = sscape_upload_bootblock(card); |
1087 | if (err >= 0) |
1088 | err = sscape_upload_microcode(card, err); |
1089 | |
1090 | if (err == 0) { |
1091 | err = create_mpu401(card, MIDI_DEVNUM, port[dev], |
1092 | mpu_irq[dev]); |
1093 | if (err < 0) { |
1094 | snd_printk(KERN_ERR "sscape: Failed to create " |
1095 | "MPU-401 device at 0x%lx\n", |
1096 | port[dev]); |
1097 | goto _release_dma; |
1098 | } |
1099 | |
1100 | /* |
1101 | * Initialize mixer |
1102 | */ |
1103 | spin_lock_irqsave(&sscape->lock, flags); |
1104 | sscape->midi_vol = 0; |
1105 | host_write_ctrl_unsafe(sscape->io_base, |
1106 | CMD_SET_MIDI_VOL, 100); |
1107 | host_write_ctrl_unsafe(sscape->io_base, |
1108 | sscape->midi_vol, 100); |
1109 | host_write_ctrl_unsafe(sscape->io_base, |
1110 | CMD_XXX_MIDI_VOL, 100); |
1111 | host_write_ctrl_unsafe(sscape->io_base, |
1112 | sscape->midi_vol, 100); |
1113 | host_write_ctrl_unsafe(sscape->io_base, |
1114 | CMD_SET_EXTMIDI, 100); |
1115 | host_write_ctrl_unsafe(sscape->io_base, |
1116 | 0, 100); |
1117 | host_write_ctrl_unsafe(sscape->io_base, CMD_ACK, 100); |
1118 | |
1119 | set_midi_mode_unsafe(sscape->io_base); |
1120 | spin_unlock_irqrestore(&sscape->lock, flags); |
1121 | } |
1122 | } |
1123 | |
1124 | /* |
1125 | * Now that we have successfully created this sound card, |
1126 | * it is safe to store the pointer. |
1127 | * NOTE: we only register the sound card's "destructor" |
1128 | * function now that our "constructor" has completed. |
1129 | */ |
1130 | card->private_free = soundscape_free; |
1131 | |
1132 | return 0; |
1133 | |
1134 | _release_dma: |
1135 | free_dma(dma[dev]); |
1136 | |
1137 | _release_region: |
1138 | release_and_free_resource(wss_res); |
1139 | release_and_free_resource(io_res); |
1140 | |
1141 | return err; |
1142 | } |
1143 | |
1144 | |
1145 | static int __devinit snd_sscape_match(struct device *pdev, unsigned int i) |
1146 | { |
1147 | /* |
1148 | * Make sure we were given ALL of the other parameters. |
1149 | */ |
1150 | if (port[i] == SNDRV_AUTO_PORT) |
1151 | return 0; |
1152 | |
1153 | if (irq[i] == SNDRV_AUTO_IRQ || |
1154 | mpu_irq[i] == SNDRV_AUTO_IRQ || |
1155 | dma[i] == SNDRV_AUTO_DMA) { |
1156 | printk(KERN_INFO |
1157 | "sscape: insufficient parameters, " |
1158 | "need IO, IRQ, MPU-IRQ and DMA\n"); |
1159 | return 0; |
1160 | } |
1161 | |
1162 | return 1; |
1163 | } |
1164 | |
1165 | static int __devinit snd_sscape_probe(struct device *pdev, unsigned int dev) |
1166 | { |
1167 | struct snd_card *card; |
1168 | struct soundscape *sscape; |
1169 | int ret; |
1170 | |
1171 | ret = snd_card_create(index[dev], id[dev], THIS_MODULE, |
1172 | sizeof(struct soundscape), &card); |
1173 | if (ret < 0) |
1174 | return ret; |
1175 | |
1176 | sscape = get_card_soundscape(card); |
1177 | sscape->type = SSCAPE; |
1178 | |
1179 | dma[dev] &= 0x03; |
1180 | snd_card_set_dev(card, pdev); |
1181 | |
1182 | ret = create_sscape(dev, card); |
1183 | if (ret < 0) |
1184 | goto _release_card; |
1185 | |
1186 | ret = snd_card_register(card); |
1187 | if (ret < 0) { |
1188 | snd_printk(KERN_ERR "sscape: Failed to register sound card\n"); |
1189 | goto _release_card; |
1190 | } |
1191 | dev_set_drvdata(pdev, card); |
1192 | return 0; |
1193 | |
1194 | _release_card: |
1195 | snd_card_free(card); |
1196 | return ret; |
1197 | } |
1198 | |
1199 | static int __devexit snd_sscape_remove(struct device *devptr, unsigned int dev) |
1200 | { |
1201 | snd_card_free(dev_get_drvdata(devptr)); |
1202 | dev_set_drvdata(devptr, NULL); |
1203 | return 0; |
1204 | } |
1205 | |
1206 | #define DEV_NAME "sscape" |
1207 | |
1208 | static struct isa_driver snd_sscape_driver = { |
1209 | .match = snd_sscape_match, |
1210 | .probe = snd_sscape_probe, |
1211 | .remove = __devexit_p(snd_sscape_remove), |
1212 | /* FIXME: suspend/resume */ |
1213 | .driver = { |
1214 | .name = DEV_NAME |
1215 | }, |
1216 | }; |
1217 | |
1218 | #ifdef CONFIG_PNP |
1219 | static inline int __devinit get_next_autoindex(int i) |
1220 | { |
1221 | while (i < SNDRV_CARDS && port[i] != SNDRV_AUTO_PORT) |
1222 | ++i; |
1223 | return i; |
1224 | } |
1225 | |
1226 | |
1227 | static int __devinit sscape_pnp_detect(struct pnp_card_link *pcard, |
1228 | const struct pnp_card_device_id *pid) |
1229 | { |
1230 | static int idx = 0; |
1231 | struct pnp_dev *dev; |
1232 | struct snd_card *card; |
1233 | struct soundscape *sscape; |
1234 | int ret; |
1235 | |
1236 | /* |
1237 | * Allow this function to fail *quietly* if all the ISA PnP |
1238 | * devices were configured using module parameters instead. |
1239 | */ |
1240 | idx = get_next_autoindex(idx); |
1241 | if (idx >= SNDRV_CARDS) |
1242 | return -ENOSPC; |
1243 | |
1244 | /* |
1245 | * Check that we still have room for another sound card ... |
1246 | */ |
1247 | dev = pnp_request_card_device(pcard, pid->devs[0].id, NULL); |
1248 | if (!dev) |
1249 | return -ENODEV; |
1250 | |
1251 | if (!pnp_is_active(dev)) { |
1252 | if (pnp_activate_dev(dev) < 0) { |
1253 | snd_printk(KERN_INFO "sscape: device is inactive\n"); |
1254 | return -EBUSY; |
1255 | } |
1256 | } |
1257 | |
1258 | /* |
1259 | * Create a new ALSA sound card entry, in anticipation |
1260 | * of detecting our hardware ... |
1261 | */ |
1262 | ret = snd_card_create(index[idx], id[idx], THIS_MODULE, |
1263 | sizeof(struct soundscape), &card); |
1264 | if (ret < 0) |
1265 | return ret; |
1266 | |
1267 | sscape = get_card_soundscape(card); |
1268 | |
1269 | /* |
1270 | * Identify card model ... |
1271 | */ |
1272 | if (!strncmp("ENS4081", pid->id, 7)) |
1273 | sscape->type = SSCAPE_VIVO; |
1274 | else |
1275 | sscape->type = SSCAPE_PNP; |
1276 | |
1277 | /* |
1278 | * Read the correct parameters off the ISA PnP bus ... |
1279 | */ |
1280 | port[idx] = pnp_port_start(dev, 0); |
1281 | irq[idx] = pnp_irq(dev, 0); |
1282 | mpu_irq[idx] = pnp_irq(dev, 1); |
1283 | dma[idx] = pnp_dma(dev, 0) & 0x03; |
1284 | if (sscape->type == SSCAPE_PNP) { |
1285 | dma2[idx] = dma[idx]; |
1286 | wss_port[idx] = CODEC_IO(port[idx]); |
1287 | } else { |
1288 | wss_port[idx] = pnp_port_start(dev, 1); |
1289 | dma2[idx] = pnp_dma(dev, 1); |
1290 | } |
1291 | snd_card_set_dev(card, &pcard->card->dev); |
1292 | |
1293 | ret = create_sscape(idx, card); |
1294 | if (ret < 0) |
1295 | goto _release_card; |
1296 | |
1297 | ret = snd_card_register(card); |
1298 | if (ret < 0) { |
1299 | snd_printk(KERN_ERR "sscape: Failed to register sound card\n"); |
1300 | goto _release_card; |
1301 | } |
1302 | |
1303 | pnp_set_card_drvdata(pcard, card); |
1304 | ++idx; |
1305 | return 0; |
1306 | |
1307 | _release_card: |
1308 | snd_card_free(card); |
1309 | return ret; |
1310 | } |
1311 | |
1312 | static void __devexit sscape_pnp_remove(struct pnp_card_link * pcard) |
1313 | { |
1314 | snd_card_free(pnp_get_card_drvdata(pcard)); |
1315 | pnp_set_card_drvdata(pcard, NULL); |
1316 | } |
1317 | |
1318 | static struct pnp_card_driver sscape_pnpc_driver = { |
1319 | .flags = PNP_DRIVER_RES_DO_NOT_CHANGE, |
1320 | .name = "sscape", |
1321 | .id_table = sscape_pnpids, |
1322 | .probe = sscape_pnp_detect, |
1323 | .remove = __devexit_p(sscape_pnp_remove), |
1324 | }; |
1325 | |
1326 | #endif /* CONFIG_PNP */ |
1327 | |
1328 | static int __init sscape_init(void) |
1329 | { |
1330 | int err; |
1331 | |
1332 | err = isa_register_driver(&snd_sscape_driver, SNDRV_CARDS); |
1333 | #ifdef CONFIG_PNP |
1334 | if (!err) |
1335 | isa_registered = 1; |
1336 | |
1337 | err = pnp_register_card_driver(&sscape_pnpc_driver); |
1338 | if (!err) |
1339 | pnp_registered = 1; |
1340 | |
1341 | if (isa_registered) |
1342 | err = 0; |
1343 | #endif |
1344 | return err; |
1345 | } |
1346 | |
1347 | static void __exit sscape_exit(void) |
1348 | { |
1349 | #ifdef CONFIG_PNP |
1350 | if (pnp_registered) |
1351 | pnp_unregister_card_driver(&sscape_pnpc_driver); |
1352 | if (isa_registered) |
1353 | #endif |
1354 | isa_unregister_driver(&snd_sscape_driver); |
1355 | } |
1356 | |
1357 | module_init(sscape_init); |
1358 | module_exit(sscape_exit); |
1359 |
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