1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * Low-level ALSA driver for the ENSONIQ SoundScape |
4 | * Copyright (c) by Chris Rankin |
5 | * |
6 | * This driver was written in part using information obtained from |
7 | * the OSS/Free SoundScape driver, written by Hannu Savolainen. |
8 | */ |
9 | |
10 | #include <linux/init.h> |
11 | #include <linux/err.h> |
12 | #include <linux/io.h> |
13 | #include <linux/isa.h> |
14 | #include <linux/delay.h> |
15 | #include <linux/firmware.h> |
16 | #include <linux/pnp.h> |
17 | #include <linux/spinlock.h> |
18 | #include <linux/module.h> |
19 | #include <asm/dma.h> |
20 | #include <sound/core.h> |
21 | #include <sound/wss.h> |
22 | #include <sound/mpu401.h> |
23 | #include <sound/initval.h> |
24 | |
25 | |
26 | MODULE_AUTHOR("Chris Rankin" ); |
27 | MODULE_DESCRIPTION("ENSONIQ SoundScape driver" ); |
28 | MODULE_LICENSE("GPL" ); |
29 | MODULE_FIRMWARE("sndscape.co0" ); |
30 | MODULE_FIRMWARE("sndscape.co1" ); |
31 | MODULE_FIRMWARE("sndscape.co2" ); |
32 | MODULE_FIRMWARE("sndscape.co3" ); |
33 | MODULE_FIRMWARE("sndscape.co4" ); |
34 | MODULE_FIRMWARE("scope.cod" ); |
35 | |
36 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; |
37 | static char* id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; |
38 | static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; |
39 | static long wss_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; |
40 | static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; |
41 | static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; |
42 | static int dma[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; |
43 | static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; |
44 | static bool joystick[SNDRV_CARDS]; |
45 | |
46 | module_param_array(index, int, NULL, 0444); |
47 | MODULE_PARM_DESC(index, "Index number for SoundScape soundcard" ); |
48 | |
49 | module_param_array(id, charp, NULL, 0444); |
50 | MODULE_PARM_DESC(id, "Description for SoundScape card" ); |
51 | |
52 | module_param_hw_array(port, long, ioport, NULL, 0444); |
53 | MODULE_PARM_DESC(port, "Port # for SoundScape driver." ); |
54 | |
55 | module_param_hw_array(wss_port, long, ioport, NULL, 0444); |
56 | MODULE_PARM_DESC(wss_port, "WSS Port # for SoundScape driver." ); |
57 | |
58 | module_param_hw_array(irq, int, irq, NULL, 0444); |
59 | MODULE_PARM_DESC(irq, "IRQ # for SoundScape driver." ); |
60 | |
61 | module_param_hw_array(mpu_irq, int, irq, NULL, 0444); |
62 | MODULE_PARM_DESC(mpu_irq, "MPU401 IRQ # for SoundScape driver." ); |
63 | |
64 | module_param_hw_array(dma, int, dma, NULL, 0444); |
65 | MODULE_PARM_DESC(dma, "DMA # for SoundScape driver." ); |
66 | |
67 | module_param_hw_array(dma2, int, dma, NULL, 0444); |
68 | MODULE_PARM_DESC(dma2, "DMA2 # for SoundScape driver." ); |
69 | |
70 | module_param_array(joystick, bool, NULL, 0444); |
71 | MODULE_PARM_DESC(joystick, "Enable gameport." ); |
72 | |
73 | #ifdef CONFIG_PNP |
74 | static int isa_registered; |
75 | static int pnp_registered; |
76 | |
77 | static const struct pnp_card_device_id sscape_pnpids[] = { |
78 | { .id = "ENS3081" , .devs = { { "ENS0000" } } }, /* Soundscape PnP */ |
79 | { .id = "ENS4081" , .devs = { { "ENS1011" } } }, /* VIVO90 */ |
80 | { .id = "" } /* end */ |
81 | }; |
82 | |
83 | MODULE_DEVICE_TABLE(pnp_card, sscape_pnpids); |
84 | #endif |
85 | |
86 | |
87 | #define HOST_CTRL_IO(i) ((i) + 2) |
88 | #define HOST_DATA_IO(i) ((i) + 3) |
89 | #define ODIE_ADDR_IO(i) ((i) + 4) |
90 | #define ODIE_DATA_IO(i) ((i) + 5) |
91 | #define CODEC_IO(i) ((i) + 8) |
92 | |
93 | #define IC_ODIE 1 |
94 | #define IC_OPUS 2 |
95 | |
96 | #define RX_READY 0x01 |
97 | #define TX_READY 0x02 |
98 | |
99 | #define CMD_ACK 0x80 |
100 | #define CMD_SET_MIDI_VOL 0x84 |
101 | #define CMD_GET_MIDI_VOL 0x85 |
102 | #define CMD_XXX_MIDI_VOL 0x86 |
103 | #define CMD_SET_EXTMIDI 0x8a |
104 | #define CMD_GET_EXTMIDI 0x8b |
105 | #define CMD_SET_MT32 0x8c |
106 | #define CMD_GET_MT32 0x8d |
107 | |
108 | enum GA_REG { |
109 | GA_INTSTAT_REG = 0, |
110 | GA_INTENA_REG, |
111 | GA_DMAA_REG, |
112 | GA_DMAB_REG, |
113 | GA_INTCFG_REG, |
114 | GA_DMACFG_REG, |
115 | GA_CDCFG_REG, |
116 | GA_SMCFGA_REG, |
117 | GA_SMCFGB_REG, |
118 | GA_HMCTL_REG |
119 | }; |
120 | |
121 | #define DMA_8BIT 0x80 |
122 | |
123 | |
124 | enum card_type { |
125 | MEDIA_FX, /* Sequoia S-1000 */ |
126 | SSCAPE, /* Sequoia S-2000 */ |
127 | SSCAPE_PNP, |
128 | SSCAPE_VIVO, |
129 | }; |
130 | |
131 | struct soundscape { |
132 | spinlock_t lock; |
133 | unsigned io_base; |
134 | int ic_type; |
135 | enum card_type type; |
136 | struct resource *io_res; |
137 | struct resource *wss_res; |
138 | struct snd_wss *chip; |
139 | |
140 | unsigned char midi_vol; |
141 | }; |
142 | |
143 | #define INVALID_IRQ ((unsigned)-1) |
144 | |
145 | |
146 | static inline struct soundscape *get_card_soundscape(struct snd_card *c) |
147 | { |
148 | return (struct soundscape *) (c->private_data); |
149 | } |
150 | |
151 | /* |
152 | * Allocates some kernel memory that we can use for DMA. |
153 | * I think this means that the memory has to map to |
154 | * contiguous pages of physical memory. |
155 | */ |
156 | static struct snd_dma_buffer *get_dmabuf(struct soundscape *s, |
157 | struct snd_dma_buffer *buf, |
158 | unsigned long size) |
159 | { |
160 | if (buf) { |
161 | if (snd_dma_alloc_pages_fallback(SNDRV_DMA_TYPE_DEV, |
162 | dev: s->chip->card->dev, |
163 | size, dmab: buf) < 0) { |
164 | snd_printk(KERN_ERR "sscape: Failed to allocate " |
165 | "%lu bytes for DMA\n" , |
166 | size); |
167 | return NULL; |
168 | } |
169 | } |
170 | |
171 | return buf; |
172 | } |
173 | |
174 | /* |
175 | * Release the DMA-able kernel memory ... |
176 | */ |
177 | static void free_dmabuf(struct snd_dma_buffer *buf) |
178 | { |
179 | if (buf && buf->area) |
180 | snd_dma_free_pages(dmab: buf); |
181 | } |
182 | |
183 | /* |
184 | * This function writes to the SoundScape's control registers, |
185 | * but doesn't do any locking. It's up to the caller to do that. |
186 | * This is why this function is "unsafe" ... |
187 | */ |
188 | static inline void sscape_write_unsafe(unsigned io_base, enum GA_REG reg, |
189 | unsigned char val) |
190 | { |
191 | outb(value: reg, ODIE_ADDR_IO(io_base)); |
192 | outb(value: val, ODIE_DATA_IO(io_base)); |
193 | } |
194 | |
195 | /* |
196 | * Write to the SoundScape's control registers, and do the |
197 | * necessary locking ... |
198 | */ |
199 | static void sscape_write(struct soundscape *s, enum GA_REG reg, |
200 | unsigned char val) |
201 | { |
202 | unsigned long flags; |
203 | |
204 | spin_lock_irqsave(&s->lock, flags); |
205 | sscape_write_unsafe(io_base: s->io_base, reg, val); |
206 | spin_unlock_irqrestore(lock: &s->lock, flags); |
207 | } |
208 | |
209 | /* |
210 | * Read from the SoundScape's control registers, but leave any |
211 | * locking to the caller. This is why the function is "unsafe" ... |
212 | */ |
213 | static inline unsigned char sscape_read_unsafe(unsigned io_base, |
214 | enum GA_REG reg) |
215 | { |
216 | outb(value: reg, ODIE_ADDR_IO(io_base)); |
217 | return inb(ODIE_DATA_IO(io_base)); |
218 | } |
219 | |
220 | /* |
221 | * Puts the SoundScape into "host" mode, as compared to "MIDI" mode |
222 | */ |
223 | static inline void set_host_mode_unsafe(unsigned io_base) |
224 | { |
225 | outb(value: 0x0, HOST_CTRL_IO(io_base)); |
226 | } |
227 | |
228 | /* |
229 | * Puts the SoundScape into "MIDI" mode, as compared to "host" mode |
230 | */ |
231 | static inline void set_midi_mode_unsafe(unsigned io_base) |
232 | { |
233 | outb(value: 0x3, HOST_CTRL_IO(io_base)); |
234 | } |
235 | |
236 | /* |
237 | * Read the SoundScape's host-mode control register, but leave |
238 | * any locking issues to the caller ... |
239 | */ |
240 | static inline int host_read_unsafe(unsigned io_base) |
241 | { |
242 | int data = -1; |
243 | if ((inb(HOST_CTRL_IO(io_base)) & RX_READY) != 0) |
244 | data = inb(HOST_DATA_IO(io_base)); |
245 | |
246 | return data; |
247 | } |
248 | |
249 | /* |
250 | * Read the SoundScape's host-mode control register, performing |
251 | * a limited amount of busy-waiting if the register isn't ready. |
252 | * Also leaves all locking-issues to the caller ... |
253 | */ |
254 | static int host_read_ctrl_unsafe(unsigned io_base, unsigned timeout) |
255 | { |
256 | int data; |
257 | |
258 | while (((data = host_read_unsafe(io_base)) < 0) && (timeout != 0)) { |
259 | udelay(100); |
260 | --timeout; |
261 | } /* while */ |
262 | |
263 | return data; |
264 | } |
265 | |
266 | /* |
267 | * Write to the SoundScape's host-mode control registers, but |
268 | * leave any locking issues to the caller ... |
269 | */ |
270 | static inline int host_write_unsafe(unsigned io_base, unsigned char data) |
271 | { |
272 | if ((inb(HOST_CTRL_IO(io_base)) & TX_READY) != 0) { |
273 | outb(value: data, HOST_DATA_IO(io_base)); |
274 | return 1; |
275 | } |
276 | |
277 | return 0; |
278 | } |
279 | |
280 | /* |
281 | * Write to the SoundScape's host-mode control registers, performing |
282 | * a limited amount of busy-waiting if the register isn't ready. |
283 | * Also leaves all locking-issues to the caller ... |
284 | */ |
285 | static int host_write_ctrl_unsafe(unsigned io_base, unsigned char data, |
286 | unsigned timeout) |
287 | { |
288 | int err; |
289 | |
290 | while (!(err = host_write_unsafe(io_base, data)) && (timeout != 0)) { |
291 | udelay(100); |
292 | --timeout; |
293 | } /* while */ |
294 | |
295 | return err; |
296 | } |
297 | |
298 | |
299 | /* |
300 | * Check that the MIDI subsystem is operational. If it isn't, |
301 | * then we will hang the computer if we try to use it ... |
302 | * |
303 | * NOTE: This check is based upon observation, not documentation. |
304 | */ |
305 | static inline int verify_mpu401(const struct snd_mpu401 *mpu) |
306 | { |
307 | return ((inb(MPU401C(mpu)) & 0xc0) == 0x80); |
308 | } |
309 | |
310 | /* |
311 | * This is apparently the standard way to initialise an MPU-401 |
312 | */ |
313 | static inline void initialise_mpu401(const struct snd_mpu401 *mpu) |
314 | { |
315 | outb(value: 0, MPU401D(mpu)); |
316 | } |
317 | |
318 | /* |
319 | * Tell the SoundScape to activate the AD1845 chip (I think). |
320 | * The AD1845 detection fails if we *don't* do this, so I |
321 | * think that this is a good idea ... |
322 | */ |
323 | static void activate_ad1845_unsafe(unsigned io_base) |
324 | { |
325 | unsigned char val = sscape_read_unsafe(io_base, reg: GA_HMCTL_REG); |
326 | sscape_write_unsafe(io_base, reg: GA_HMCTL_REG, val: (val & 0xcf) | 0x10); |
327 | sscape_write_unsafe(io_base, reg: GA_CDCFG_REG, val: 0x80); |
328 | } |
329 | |
330 | /* |
331 | * Tell the SoundScape to begin a DMA transfer using the given channel. |
332 | * All locking issues are left to the caller. |
333 | */ |
334 | static void sscape_start_dma_unsafe(unsigned io_base, enum GA_REG reg) |
335 | { |
336 | sscape_write_unsafe(io_base, reg, |
337 | val: sscape_read_unsafe(io_base, reg) | 0x01); |
338 | sscape_write_unsafe(io_base, reg, |
339 | val: sscape_read_unsafe(io_base, reg) & 0xfe); |
340 | } |
341 | |
342 | /* |
343 | * Wait for a DMA transfer to complete. This is a "limited busy-wait", |
344 | * and all locking issues are left to the caller. |
345 | */ |
346 | static int sscape_wait_dma_unsafe(unsigned io_base, enum GA_REG reg, |
347 | unsigned timeout) |
348 | { |
349 | while (!(sscape_read_unsafe(io_base, reg) & 0x01) && (timeout != 0)) { |
350 | udelay(100); |
351 | --timeout; |
352 | } /* while */ |
353 | |
354 | return sscape_read_unsafe(io_base, reg) & 0x01; |
355 | } |
356 | |
357 | /* |
358 | * Wait for the On-Board Processor to return its start-up |
359 | * acknowledgement sequence. This wait is too long for |
360 | * us to perform "busy-waiting", and so we must sleep. |
361 | * This in turn means that we must not be holding any |
362 | * spinlocks when we call this function. |
363 | */ |
364 | static int obp_startup_ack(struct soundscape *s, unsigned timeout) |
365 | { |
366 | unsigned long end_time = jiffies + msecs_to_jiffies(m: timeout); |
367 | |
368 | do { |
369 | unsigned long flags; |
370 | int x; |
371 | |
372 | spin_lock_irqsave(&s->lock, flags); |
373 | x = host_read_unsafe(io_base: s->io_base); |
374 | spin_unlock_irqrestore(lock: &s->lock, flags); |
375 | if (x == 0xfe || x == 0xff) |
376 | return 1; |
377 | |
378 | msleep(msecs: 10); |
379 | } while (time_before(jiffies, end_time)); |
380 | |
381 | return 0; |
382 | } |
383 | |
384 | /* |
385 | * Wait for the host to return its start-up acknowledgement |
386 | * sequence. This wait is too long for us to perform |
387 | * "busy-waiting", and so we must sleep. This in turn means |
388 | * that we must not be holding any spinlocks when we call |
389 | * this function. |
390 | */ |
391 | static int host_startup_ack(struct soundscape *s, unsigned timeout) |
392 | { |
393 | unsigned long end_time = jiffies + msecs_to_jiffies(m: timeout); |
394 | |
395 | do { |
396 | unsigned long flags; |
397 | int x; |
398 | |
399 | spin_lock_irqsave(&s->lock, flags); |
400 | x = host_read_unsafe(io_base: s->io_base); |
401 | spin_unlock_irqrestore(lock: &s->lock, flags); |
402 | if (x == 0xfe) |
403 | return 1; |
404 | |
405 | msleep(msecs: 10); |
406 | } while (time_before(jiffies, end_time)); |
407 | |
408 | return 0; |
409 | } |
410 | |
411 | /* |
412 | * Upload a byte-stream into the SoundScape using DMA channel A. |
413 | */ |
414 | static int upload_dma_data(struct soundscape *s, const unsigned char *data, |
415 | size_t size) |
416 | { |
417 | unsigned long flags; |
418 | struct snd_dma_buffer dma; |
419 | int ret; |
420 | unsigned char val; |
421 | |
422 | if (!get_dmabuf(s, buf: &dma, PAGE_ALIGN(32 * 1024))) |
423 | return -ENOMEM; |
424 | |
425 | spin_lock_irqsave(&s->lock, flags); |
426 | |
427 | /* |
428 | * Reset the board ... |
429 | */ |
430 | val = sscape_read_unsafe(io_base: s->io_base, reg: GA_HMCTL_REG); |
431 | sscape_write_unsafe(io_base: s->io_base, reg: GA_HMCTL_REG, val: val & 0x3f); |
432 | |
433 | /* |
434 | * Enable the DMA channels and configure them ... |
435 | */ |
436 | val = (s->chip->dma1 << 4) | DMA_8BIT; |
437 | sscape_write_unsafe(io_base: s->io_base, reg: GA_DMAA_REG, val); |
438 | sscape_write_unsafe(io_base: s->io_base, reg: GA_DMAB_REG, val: 0x20); |
439 | |
440 | /* |
441 | * Take the board out of reset ... |
442 | */ |
443 | val = sscape_read_unsafe(io_base: s->io_base, reg: GA_HMCTL_REG); |
444 | sscape_write_unsafe(io_base: s->io_base, reg: GA_HMCTL_REG, val: val | 0x80); |
445 | |
446 | /* |
447 | * Upload the firmware to the SoundScape |
448 | * board through the DMA channel ... |
449 | */ |
450 | while (size != 0) { |
451 | unsigned long len; |
452 | |
453 | len = min(size, dma.bytes); |
454 | memcpy(dma.area, data, len); |
455 | data += len; |
456 | size -= len; |
457 | |
458 | snd_dma_program(dma: s->chip->dma1, addr: dma.addr, size: len, DMA_MODE_WRITE); |
459 | sscape_start_dma_unsafe(io_base: s->io_base, reg: GA_DMAA_REG); |
460 | if (!sscape_wait_dma_unsafe(io_base: s->io_base, reg: GA_DMAA_REG, timeout: 5000)) { |
461 | /* |
462 | * Don't forget to release this spinlock we're holding |
463 | */ |
464 | spin_unlock_irqrestore(lock: &s->lock, flags); |
465 | |
466 | snd_printk(KERN_ERR |
467 | "sscape: DMA upload has timed out\n" ); |
468 | ret = -EAGAIN; |
469 | goto _release_dma; |
470 | } |
471 | } /* while */ |
472 | |
473 | set_host_mode_unsafe(s->io_base); |
474 | outb(value: 0x0, port: s->io_base); |
475 | |
476 | /* |
477 | * Boot the board ... (I think) |
478 | */ |
479 | val = sscape_read_unsafe(io_base: s->io_base, reg: GA_HMCTL_REG); |
480 | sscape_write_unsafe(io_base: s->io_base, reg: GA_HMCTL_REG, val: val | 0x40); |
481 | spin_unlock_irqrestore(lock: &s->lock, flags); |
482 | |
483 | /* |
484 | * If all has gone well, then the board should acknowledge |
485 | * the new upload and tell us that it has rebooted OK. We |
486 | * give it 5 seconds (max) ... |
487 | */ |
488 | ret = 0; |
489 | if (!obp_startup_ack(s, timeout: 5000)) { |
490 | snd_printk(KERN_ERR "sscape: No response " |
491 | "from on-board processor after upload\n" ); |
492 | ret = -EAGAIN; |
493 | } else if (!host_startup_ack(s, timeout: 5000)) { |
494 | snd_printk(KERN_ERR |
495 | "sscape: SoundScape failed to initialise\n" ); |
496 | ret = -EAGAIN; |
497 | } |
498 | |
499 | _release_dma: |
500 | /* |
501 | * NOTE!!! We are NOT holding any spinlocks at this point !!! |
502 | */ |
503 | sscape_write(s, reg: GA_DMAA_REG, val: (s->ic_type == IC_OPUS ? 0x40 : 0x70)); |
504 | free_dmabuf(buf: &dma); |
505 | |
506 | return ret; |
507 | } |
508 | |
509 | /* |
510 | * Upload the bootblock(?) into the SoundScape. The only |
511 | * purpose of this block of code seems to be to tell |
512 | * us which version of the microcode we should be using. |
513 | */ |
514 | static int sscape_upload_bootblock(struct snd_card *card) |
515 | { |
516 | struct soundscape *sscape = get_card_soundscape(c: card); |
517 | unsigned long flags; |
518 | const struct firmware *init_fw = NULL; |
519 | int data = 0; |
520 | int ret; |
521 | |
522 | ret = request_firmware(fw: &init_fw, name: "scope.cod" , device: card->dev); |
523 | if (ret < 0) { |
524 | snd_printk(KERN_ERR "sscape: Error loading scope.cod" ); |
525 | return ret; |
526 | } |
527 | ret = upload_dma_data(s: sscape, data: init_fw->data, size: init_fw->size); |
528 | |
529 | release_firmware(fw: init_fw); |
530 | |
531 | spin_lock_irqsave(&sscape->lock, flags); |
532 | if (ret == 0) |
533 | data = host_read_ctrl_unsafe(io_base: sscape->io_base, timeout: 100); |
534 | |
535 | if (data & 0x10) |
536 | sscape_write_unsafe(io_base: sscape->io_base, reg: GA_SMCFGA_REG, val: 0x2f); |
537 | |
538 | spin_unlock_irqrestore(lock: &sscape->lock, flags); |
539 | |
540 | data &= 0xf; |
541 | if (ret == 0 && data > 7) { |
542 | snd_printk(KERN_ERR |
543 | "sscape: timeout reading firmware version\n" ); |
544 | ret = -EAGAIN; |
545 | } |
546 | |
547 | return (ret == 0) ? data : ret; |
548 | } |
549 | |
550 | /* |
551 | * Upload the microcode into the SoundScape. |
552 | */ |
553 | static int sscape_upload_microcode(struct snd_card *card, int version) |
554 | { |
555 | struct soundscape *sscape = get_card_soundscape(c: card); |
556 | const struct firmware *init_fw = NULL; |
557 | char name[14]; |
558 | int err; |
559 | |
560 | scnprintf(buf: name, size: sizeof(name), fmt: "sndscape.co%d" , version); |
561 | |
562 | err = request_firmware(fw: &init_fw, name, device: card->dev); |
563 | if (err < 0) { |
564 | snd_printk(KERN_ERR "sscape: Error loading sndscape.co%d" , |
565 | version); |
566 | return err; |
567 | } |
568 | err = upload_dma_data(s: sscape, data: init_fw->data, size: init_fw->size); |
569 | if (err == 0) |
570 | snd_printk(KERN_INFO "sscape: MIDI firmware loaded %zu KBs\n" , |
571 | init_fw->size >> 10); |
572 | |
573 | release_firmware(fw: init_fw); |
574 | |
575 | return err; |
576 | } |
577 | |
578 | /* |
579 | * Mixer control for the SoundScape's MIDI device. |
580 | */ |
581 | static int sscape_midi_info(struct snd_kcontrol *ctl, |
582 | struct snd_ctl_elem_info *uinfo) |
583 | { |
584 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
585 | uinfo->count = 1; |
586 | uinfo->value.integer.min = 0; |
587 | uinfo->value.integer.max = 127; |
588 | return 0; |
589 | } |
590 | |
591 | static int sscape_midi_get(struct snd_kcontrol *kctl, |
592 | struct snd_ctl_elem_value *uctl) |
593 | { |
594 | struct snd_wss *chip = snd_kcontrol_chip(kctl); |
595 | struct snd_card *card = chip->card; |
596 | register struct soundscape *s = get_card_soundscape(c: card); |
597 | unsigned long flags; |
598 | |
599 | spin_lock_irqsave(&s->lock, flags); |
600 | uctl->value.integer.value[0] = s->midi_vol; |
601 | spin_unlock_irqrestore(lock: &s->lock, flags); |
602 | return 0; |
603 | } |
604 | |
605 | static int sscape_midi_put(struct snd_kcontrol *kctl, |
606 | struct snd_ctl_elem_value *uctl) |
607 | { |
608 | struct snd_wss *chip = snd_kcontrol_chip(kctl); |
609 | struct snd_card *card = chip->card; |
610 | struct soundscape *s = get_card_soundscape(c: card); |
611 | unsigned long flags; |
612 | int change; |
613 | unsigned char new_val; |
614 | |
615 | spin_lock_irqsave(&s->lock, flags); |
616 | |
617 | new_val = uctl->value.integer.value[0] & 127; |
618 | /* |
619 | * We need to put the board into HOST mode before we |
620 | * can send any volume-changing HOST commands ... |
621 | */ |
622 | set_host_mode_unsafe(s->io_base); |
623 | |
624 | /* |
625 | * To successfully change the MIDI volume setting, you seem to |
626 | * have to write a volume command, write the new volume value, |
627 | * and then perform another volume-related command. Perhaps the |
628 | * first command is an "open" and the second command is a "close"? |
629 | */ |
630 | if (s->midi_vol == new_val) { |
631 | change = 0; |
632 | goto __skip_change; |
633 | } |
634 | change = host_write_ctrl_unsafe(io_base: s->io_base, CMD_SET_MIDI_VOL, timeout: 100) |
635 | && host_write_ctrl_unsafe(io_base: s->io_base, data: new_val, timeout: 100) |
636 | && host_write_ctrl_unsafe(io_base: s->io_base, CMD_XXX_MIDI_VOL, timeout: 100) |
637 | && host_write_ctrl_unsafe(io_base: s->io_base, data: new_val, timeout: 100); |
638 | s->midi_vol = new_val; |
639 | __skip_change: |
640 | |
641 | /* |
642 | * Take the board out of HOST mode and back into MIDI mode ... |
643 | */ |
644 | set_midi_mode_unsafe(s->io_base); |
645 | |
646 | spin_unlock_irqrestore(lock: &s->lock, flags); |
647 | return change; |
648 | } |
649 | |
650 | static const struct snd_kcontrol_new midi_mixer_ctl = { |
651 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
652 | .name = "MIDI" , |
653 | .info = sscape_midi_info, |
654 | .get = sscape_midi_get, |
655 | .put = sscape_midi_put |
656 | }; |
657 | |
658 | /* |
659 | * The SoundScape can use two IRQs from a possible set of four. |
660 | * These IRQs are encoded as bit patterns so that they can be |
661 | * written to the control registers. |
662 | */ |
663 | static unsigned get_irq_config(int sscape_type, int irq) |
664 | { |
665 | static const int valid_irq[] = { 9, 5, 7, 10 }; |
666 | static const int old_irq[] = { 9, 7, 5, 15 }; |
667 | unsigned cfg; |
668 | |
669 | if (sscape_type == MEDIA_FX) { |
670 | for (cfg = 0; cfg < ARRAY_SIZE(old_irq); ++cfg) |
671 | if (irq == old_irq[cfg]) |
672 | return cfg; |
673 | } else { |
674 | for (cfg = 0; cfg < ARRAY_SIZE(valid_irq); ++cfg) |
675 | if (irq == valid_irq[cfg]) |
676 | return cfg; |
677 | } |
678 | |
679 | return INVALID_IRQ; |
680 | } |
681 | |
682 | /* |
683 | * Perform certain arcane port-checks to see whether there |
684 | * is a SoundScape board lurking behind the given ports. |
685 | */ |
686 | static int detect_sscape(struct soundscape *s, long wss_io) |
687 | { |
688 | unsigned long flags; |
689 | unsigned d; |
690 | int retval = 0; |
691 | |
692 | spin_lock_irqsave(&s->lock, flags); |
693 | |
694 | /* |
695 | * The following code is lifted from the original OSS driver, |
696 | * and as I don't have a datasheet I cannot really comment |
697 | * on what it is doing... |
698 | */ |
699 | if ((inb(HOST_CTRL_IO(s->io_base)) & 0x78) != 0) |
700 | goto _done; |
701 | |
702 | d = inb(ODIE_ADDR_IO(s->io_base)) & 0xf0; |
703 | if ((d & 0x80) != 0) |
704 | goto _done; |
705 | |
706 | if (d == 0) |
707 | s->ic_type = IC_ODIE; |
708 | else if ((d & 0x60) != 0) |
709 | s->ic_type = IC_OPUS; |
710 | else |
711 | goto _done; |
712 | |
713 | outb(value: 0xfa, ODIE_ADDR_IO(s->io_base)); |
714 | if ((inb(ODIE_ADDR_IO(s->io_base)) & 0x9f) != 0x0a) |
715 | goto _done; |
716 | |
717 | outb(value: 0xfe, ODIE_ADDR_IO(s->io_base)); |
718 | if ((inb(ODIE_ADDR_IO(s->io_base)) & 0x9f) != 0x0e) |
719 | goto _done; |
720 | |
721 | outb(value: 0xfe, ODIE_ADDR_IO(s->io_base)); |
722 | d = inb(ODIE_DATA_IO(s->io_base)); |
723 | if (s->type != SSCAPE_VIVO && (d & 0x9f) != 0x0e) |
724 | goto _done; |
725 | |
726 | if (s->ic_type == IC_OPUS) |
727 | activate_ad1845_unsafe(io_base: s->io_base); |
728 | |
729 | if (s->type == SSCAPE_VIVO) |
730 | wss_io += 4; |
731 | |
732 | d = sscape_read_unsafe(io_base: s->io_base, reg: GA_HMCTL_REG); |
733 | sscape_write_unsafe(io_base: s->io_base, reg: GA_HMCTL_REG, val: d | 0xc0); |
734 | |
735 | /* wait for WSS codec */ |
736 | for (d = 0; d < 500; d++) { |
737 | if ((inb(port: wss_io) & 0x80) == 0) |
738 | break; |
739 | spin_unlock_irqrestore(lock: &s->lock, flags); |
740 | msleep(msecs: 1); |
741 | spin_lock_irqsave(&s->lock, flags); |
742 | } |
743 | |
744 | if ((inb(port: wss_io) & 0x80) != 0) |
745 | goto _done; |
746 | |
747 | if (inb(port: wss_io + 2) == 0xff) |
748 | goto _done; |
749 | |
750 | d = sscape_read_unsafe(io_base: s->io_base, reg: GA_HMCTL_REG) & 0x3f; |
751 | sscape_write_unsafe(io_base: s->io_base, reg: GA_HMCTL_REG, val: d); |
752 | |
753 | if ((inb(port: wss_io) & 0x80) != 0) |
754 | s->type = MEDIA_FX; |
755 | |
756 | d = sscape_read_unsafe(io_base: s->io_base, reg: GA_HMCTL_REG); |
757 | sscape_write_unsafe(io_base: s->io_base, reg: GA_HMCTL_REG, val: d | 0xc0); |
758 | /* wait for WSS codec */ |
759 | for (d = 0; d < 500; d++) { |
760 | if ((inb(port: wss_io) & 0x80) == 0) |
761 | break; |
762 | spin_unlock_irqrestore(lock: &s->lock, flags); |
763 | msleep(msecs: 1); |
764 | spin_lock_irqsave(&s->lock, flags); |
765 | } |
766 | |
767 | /* |
768 | * SoundScape successfully detected! |
769 | */ |
770 | retval = 1; |
771 | |
772 | _done: |
773 | spin_unlock_irqrestore(lock: &s->lock, flags); |
774 | return retval; |
775 | } |
776 | |
777 | /* |
778 | * ALSA callback function, called when attempting to open the MIDI device. |
779 | * Check that the MIDI firmware has been loaded, because we don't want |
780 | * to crash the machine. Also check that someone isn't using the hardware |
781 | * IOCTL device. |
782 | */ |
783 | static int mpu401_open(struct snd_mpu401 *mpu) |
784 | { |
785 | if (!verify_mpu401(mpu)) { |
786 | snd_printk(KERN_ERR "sscape: MIDI disabled, " |
787 | "please load firmware\n" ); |
788 | return -ENODEV; |
789 | } |
790 | |
791 | return 0; |
792 | } |
793 | |
794 | /* |
795 | * Initialise an MPU-401 subdevice for MIDI support on the SoundScape. |
796 | */ |
797 | static int create_mpu401(struct snd_card *card, int devnum, |
798 | unsigned long port, int irq) |
799 | { |
800 | struct soundscape *sscape = get_card_soundscape(c: card); |
801 | struct snd_rawmidi *rawmidi; |
802 | int err; |
803 | |
804 | err = snd_mpu401_uart_new(card, device: devnum, MPU401_HW_MPU401, port, |
805 | MPU401_INFO_INTEGRATED, irq, rrawmidi: &rawmidi); |
806 | if (err == 0) { |
807 | struct snd_mpu401 *mpu = rawmidi->private_data; |
808 | mpu->open_input = mpu401_open; |
809 | mpu->open_output = mpu401_open; |
810 | mpu->private_data = sscape; |
811 | |
812 | initialise_mpu401(mpu); |
813 | } |
814 | |
815 | return err; |
816 | } |
817 | |
818 | |
819 | /* |
820 | * Create an AD1845 PCM subdevice on the SoundScape. The AD1845 |
821 | * is very much like a CS4231, with a few extra bits. We will |
822 | * try to support at least some of the extra bits by overriding |
823 | * some of the CS4231 callback. |
824 | */ |
825 | static int create_ad1845(struct snd_card *card, unsigned port, |
826 | int irq, int dma1, int dma2) |
827 | { |
828 | register struct soundscape *sscape = get_card_soundscape(c: card); |
829 | struct snd_wss *chip; |
830 | int err; |
831 | int codec_type = WSS_HW_DETECT; |
832 | |
833 | switch (sscape->type) { |
834 | case MEDIA_FX: |
835 | case SSCAPE: |
836 | /* |
837 | * There are some freak examples of early Soundscape cards |
838 | * with CS4231 instead of AD1848/CS4248. Unfortunately, the |
839 | * CS4231 works only in CS4248 compatibility mode on |
840 | * these cards so force it. |
841 | */ |
842 | if (sscape->ic_type != IC_OPUS) |
843 | codec_type = WSS_HW_AD1848; |
844 | break; |
845 | |
846 | case SSCAPE_VIVO: |
847 | port += 4; |
848 | break; |
849 | default: |
850 | break; |
851 | } |
852 | |
853 | err = snd_wss_create(card, port, cport: -1, irq, dma1, dma2, |
854 | hardware: codec_type, WSS_HWSHARE_DMA1, rchip: &chip); |
855 | if (!err) { |
856 | unsigned long flags; |
857 | |
858 | if (sscape->type != SSCAPE_VIVO) { |
859 | /* |
860 | * The input clock frequency on the SoundScape must |
861 | * be 14.31818 MHz, because we must set this register |
862 | * to get the playback to sound correct ... |
863 | */ |
864 | snd_wss_mce_up(chip); |
865 | spin_lock_irqsave(&chip->reg_lock, flags); |
866 | snd_wss_out(chip, AD1845_CLOCK, val: 0x20); |
867 | spin_unlock_irqrestore(lock: &chip->reg_lock, flags); |
868 | snd_wss_mce_down(chip); |
869 | |
870 | } |
871 | |
872 | err = snd_wss_pcm(chip, device: 0); |
873 | if (err < 0) { |
874 | snd_printk(KERN_ERR "sscape: No PCM device " |
875 | "for AD1845 chip\n" ); |
876 | goto _error; |
877 | } |
878 | |
879 | err = snd_wss_mixer(chip); |
880 | if (err < 0) { |
881 | snd_printk(KERN_ERR "sscape: No mixer device " |
882 | "for AD1845 chip\n" ); |
883 | goto _error; |
884 | } |
885 | if (chip->hardware != WSS_HW_AD1848) { |
886 | err = snd_wss_timer(chip, device: 0); |
887 | if (err < 0) { |
888 | snd_printk(KERN_ERR "sscape: No timer device " |
889 | "for AD1845 chip\n" ); |
890 | goto _error; |
891 | } |
892 | } |
893 | |
894 | if (sscape->type != SSCAPE_VIVO) { |
895 | err = snd_ctl_add(card, |
896 | kcontrol: snd_ctl_new1(kcontrolnew: &midi_mixer_ctl, private_data: chip)); |
897 | if (err < 0) { |
898 | snd_printk(KERN_ERR "sscape: Could not create " |
899 | "MIDI mixer control\n" ); |
900 | goto _error; |
901 | } |
902 | } |
903 | |
904 | sscape->chip = chip; |
905 | } |
906 | |
907 | _error: |
908 | return err; |
909 | } |
910 | |
911 | |
912 | /* |
913 | * Create an ALSA soundcard entry for the SoundScape, using |
914 | * the given list of port, IRQ and DMA resources. |
915 | */ |
916 | static int create_sscape(int dev, struct snd_card *card) |
917 | { |
918 | struct soundscape *sscape = get_card_soundscape(c: card); |
919 | unsigned dma_cfg; |
920 | unsigned irq_cfg; |
921 | unsigned mpu_irq_cfg; |
922 | struct resource *io_res; |
923 | struct resource *wss_res; |
924 | unsigned long flags; |
925 | int err; |
926 | int val; |
927 | const char *name; |
928 | |
929 | /* |
930 | * Grab IO ports that we will need to probe so that we |
931 | * can detect and control this hardware ... |
932 | */ |
933 | io_res = devm_request_region(card->dev, port[dev], 8, "SoundScape" ); |
934 | if (!io_res) { |
935 | snd_printk(KERN_ERR |
936 | "sscape: can't grab port 0x%lx\n" , port[dev]); |
937 | return -EBUSY; |
938 | } |
939 | wss_res = NULL; |
940 | if (sscape->type == SSCAPE_VIVO) { |
941 | wss_res = devm_request_region(card->dev, wss_port[dev], 4, |
942 | "SoundScape" ); |
943 | if (!wss_res) { |
944 | snd_printk(KERN_ERR "sscape: can't grab port 0x%lx\n" , |
945 | wss_port[dev]); |
946 | return -EBUSY; |
947 | } |
948 | } |
949 | |
950 | /* |
951 | * Grab one DMA channel ... |
952 | */ |
953 | err = snd_devm_request_dma(dev: card->dev, dma: dma[dev], name: "SoundScape" ); |
954 | if (err < 0) { |
955 | snd_printk(KERN_ERR "sscape: can't grab DMA %d\n" , dma[dev]); |
956 | return err; |
957 | } |
958 | |
959 | spin_lock_init(&sscape->lock); |
960 | sscape->io_res = io_res; |
961 | sscape->wss_res = wss_res; |
962 | sscape->io_base = port[dev]; |
963 | |
964 | if (!detect_sscape(s: sscape, wss_io: wss_port[dev])) { |
965 | printk(KERN_ERR "sscape: hardware not detected at 0x%x\n" , |
966 | sscape->io_base); |
967 | return -ENODEV; |
968 | } |
969 | |
970 | switch (sscape->type) { |
971 | case MEDIA_FX: |
972 | name = "MediaFX/SoundFX" ; |
973 | break; |
974 | case SSCAPE: |
975 | name = "Soundscape" ; |
976 | break; |
977 | case SSCAPE_PNP: |
978 | name = "Soundscape PnP" ; |
979 | break; |
980 | case SSCAPE_VIVO: |
981 | name = "Soundscape VIVO" ; |
982 | break; |
983 | default: |
984 | name = "unknown Soundscape" ; |
985 | break; |
986 | } |
987 | |
988 | printk(KERN_INFO "sscape: %s card detected at 0x%x, using IRQ %d, DMA %d\n" , |
989 | name, sscape->io_base, irq[dev], dma[dev]); |
990 | |
991 | /* |
992 | * Check that the user didn't pass us garbage data ... |
993 | */ |
994 | irq_cfg = get_irq_config(sscape_type: sscape->type, irq: irq[dev]); |
995 | if (irq_cfg == INVALID_IRQ) { |
996 | snd_printk(KERN_ERR "sscape: Invalid IRQ %d\n" , irq[dev]); |
997 | return -ENXIO; |
998 | } |
999 | |
1000 | mpu_irq_cfg = get_irq_config(sscape_type: sscape->type, irq: mpu_irq[dev]); |
1001 | if (mpu_irq_cfg == INVALID_IRQ) { |
1002 | snd_printk(KERN_ERR "sscape: Invalid IRQ %d\n" , mpu_irq[dev]); |
1003 | return -ENXIO; |
1004 | } |
1005 | |
1006 | /* |
1007 | * Tell the on-board devices where their resources are (I think - |
1008 | * I can't be sure without a datasheet ... So many magic values!) |
1009 | */ |
1010 | spin_lock_irqsave(&sscape->lock, flags); |
1011 | |
1012 | sscape_write_unsafe(io_base: sscape->io_base, reg: GA_SMCFGA_REG, val: 0x2e); |
1013 | sscape_write_unsafe(io_base: sscape->io_base, reg: GA_SMCFGB_REG, val: 0x00); |
1014 | |
1015 | /* |
1016 | * Enable and configure the DMA channels ... |
1017 | */ |
1018 | sscape_write_unsafe(io_base: sscape->io_base, reg: GA_DMACFG_REG, val: 0x50); |
1019 | dma_cfg = (sscape->ic_type == IC_OPUS ? 0x40 : 0x70); |
1020 | sscape_write_unsafe(io_base: sscape->io_base, reg: GA_DMAA_REG, val: dma_cfg); |
1021 | sscape_write_unsafe(io_base: sscape->io_base, reg: GA_DMAB_REG, val: 0x20); |
1022 | |
1023 | mpu_irq_cfg |= mpu_irq_cfg << 2; |
1024 | val = sscape_read_unsafe(io_base: sscape->io_base, reg: GA_HMCTL_REG) & 0xF7; |
1025 | if (joystick[dev]) |
1026 | val |= 8; |
1027 | sscape_write_unsafe(io_base: sscape->io_base, reg: GA_HMCTL_REG, val: val | 0x10); |
1028 | sscape_write_unsafe(io_base: sscape->io_base, reg: GA_INTCFG_REG, val: 0xf0 | mpu_irq_cfg); |
1029 | sscape_write_unsafe(io_base: sscape->io_base, |
1030 | reg: GA_CDCFG_REG, val: 0x09 | DMA_8BIT |
1031 | | (dma[dev] << 4) | (irq_cfg << 1)); |
1032 | /* |
1033 | * Enable the master IRQ ... |
1034 | */ |
1035 | sscape_write_unsafe(io_base: sscape->io_base, reg: GA_INTENA_REG, val: 0x80); |
1036 | |
1037 | spin_unlock_irqrestore(lock: &sscape->lock, flags); |
1038 | |
1039 | /* |
1040 | * We have now enabled the codec chip, and so we should |
1041 | * detect the AD1845 device ... |
1042 | */ |
1043 | err = create_ad1845(card, port: wss_port[dev], irq: irq[dev], |
1044 | dma1: dma[dev], dma2: dma2[dev]); |
1045 | if (err < 0) { |
1046 | snd_printk(KERN_ERR |
1047 | "sscape: No AD1845 device at 0x%lx, IRQ %d\n" , |
1048 | wss_port[dev], irq[dev]); |
1049 | return err; |
1050 | } |
1051 | strcpy(p: card->driver, q: "SoundScape" ); |
1052 | strcpy(p: card->shortname, q: name); |
1053 | snprintf(buf: card->longname, size: sizeof(card->longname), |
1054 | fmt: "%s at 0x%lx, IRQ %d, DMA1 %d, DMA2 %d\n" , |
1055 | name, sscape->chip->port, sscape->chip->irq, |
1056 | sscape->chip->dma1, sscape->chip->dma2); |
1057 | |
1058 | #define MIDI_DEVNUM 0 |
1059 | if (sscape->type != SSCAPE_VIVO) { |
1060 | err = sscape_upload_bootblock(card); |
1061 | if (err >= 0) |
1062 | err = sscape_upload_microcode(card, version: err); |
1063 | |
1064 | if (err == 0) { |
1065 | err = create_mpu401(card, MIDI_DEVNUM, port: port[dev], |
1066 | irq: mpu_irq[dev]); |
1067 | if (err < 0) { |
1068 | snd_printk(KERN_ERR "sscape: Failed to create " |
1069 | "MPU-401 device at 0x%lx\n" , |
1070 | port[dev]); |
1071 | return err; |
1072 | } |
1073 | |
1074 | /* |
1075 | * Initialize mixer |
1076 | */ |
1077 | spin_lock_irqsave(&sscape->lock, flags); |
1078 | sscape->midi_vol = 0; |
1079 | host_write_ctrl_unsafe(io_base: sscape->io_base, |
1080 | CMD_SET_MIDI_VOL, timeout: 100); |
1081 | host_write_ctrl_unsafe(io_base: sscape->io_base, |
1082 | data: sscape->midi_vol, timeout: 100); |
1083 | host_write_ctrl_unsafe(io_base: sscape->io_base, |
1084 | CMD_XXX_MIDI_VOL, timeout: 100); |
1085 | host_write_ctrl_unsafe(io_base: sscape->io_base, |
1086 | data: sscape->midi_vol, timeout: 100); |
1087 | host_write_ctrl_unsafe(io_base: sscape->io_base, |
1088 | CMD_SET_EXTMIDI, timeout: 100); |
1089 | host_write_ctrl_unsafe(io_base: sscape->io_base, |
1090 | data: 0, timeout: 100); |
1091 | host_write_ctrl_unsafe(io_base: sscape->io_base, CMD_ACK, timeout: 100); |
1092 | |
1093 | set_midi_mode_unsafe(sscape->io_base); |
1094 | spin_unlock_irqrestore(lock: &sscape->lock, flags); |
1095 | } |
1096 | } |
1097 | |
1098 | return 0; |
1099 | } |
1100 | |
1101 | |
1102 | static int snd_sscape_match(struct device *pdev, unsigned int i) |
1103 | { |
1104 | /* |
1105 | * Make sure we were given ALL of the other parameters. |
1106 | */ |
1107 | if (port[i] == SNDRV_AUTO_PORT) |
1108 | return 0; |
1109 | |
1110 | if (irq[i] == SNDRV_AUTO_IRQ || |
1111 | mpu_irq[i] == SNDRV_AUTO_IRQ || |
1112 | dma[i] == SNDRV_AUTO_DMA) { |
1113 | printk(KERN_INFO |
1114 | "sscape: insufficient parameters, " |
1115 | "need IO, IRQ, MPU-IRQ and DMA\n" ); |
1116 | return 0; |
1117 | } |
1118 | |
1119 | return 1; |
1120 | } |
1121 | |
1122 | static int snd_sscape_probe(struct device *pdev, unsigned int dev) |
1123 | { |
1124 | struct snd_card *card; |
1125 | struct soundscape *sscape; |
1126 | int ret; |
1127 | |
1128 | ret = snd_devm_card_new(parent: pdev, idx: index[dev], xid: id[dev], THIS_MODULE, |
1129 | extra_size: sizeof(struct soundscape), card_ret: &card); |
1130 | if (ret < 0) |
1131 | return ret; |
1132 | |
1133 | sscape = get_card_soundscape(c: card); |
1134 | sscape->type = SSCAPE; |
1135 | |
1136 | dma[dev] &= 0x03; |
1137 | |
1138 | ret = create_sscape(dev, card); |
1139 | if (ret < 0) |
1140 | return ret; |
1141 | |
1142 | ret = snd_card_register(card); |
1143 | if (ret < 0) { |
1144 | snd_printk(KERN_ERR "sscape: Failed to register sound card\n" ); |
1145 | return ret; |
1146 | } |
1147 | dev_set_drvdata(dev: pdev, data: card); |
1148 | return 0; |
1149 | } |
1150 | |
1151 | #define DEV_NAME "sscape" |
1152 | |
1153 | static struct isa_driver snd_sscape_driver = { |
1154 | .match = snd_sscape_match, |
1155 | .probe = snd_sscape_probe, |
1156 | /* FIXME: suspend/resume */ |
1157 | .driver = { |
1158 | .name = DEV_NAME |
1159 | }, |
1160 | }; |
1161 | |
1162 | #ifdef CONFIG_PNP |
1163 | static inline int get_next_autoindex(int i) |
1164 | { |
1165 | while (i < SNDRV_CARDS && port[i] != SNDRV_AUTO_PORT) |
1166 | ++i; |
1167 | return i; |
1168 | } |
1169 | |
1170 | |
1171 | static int sscape_pnp_detect(struct pnp_card_link *pcard, |
1172 | const struct pnp_card_device_id *pid) |
1173 | { |
1174 | static int idx = 0; |
1175 | struct pnp_dev *dev; |
1176 | struct snd_card *card; |
1177 | struct soundscape *sscape; |
1178 | int ret; |
1179 | |
1180 | /* |
1181 | * Allow this function to fail *quietly* if all the ISA PnP |
1182 | * devices were configured using module parameters instead. |
1183 | */ |
1184 | idx = get_next_autoindex(i: idx); |
1185 | if (idx >= SNDRV_CARDS) |
1186 | return -ENOSPC; |
1187 | |
1188 | /* |
1189 | * Check that we still have room for another sound card ... |
1190 | */ |
1191 | dev = pnp_request_card_device(clink: pcard, id: pid->devs[0].id, NULL); |
1192 | if (!dev) |
1193 | return -ENODEV; |
1194 | |
1195 | if (!pnp_is_active(dev)) { |
1196 | if (pnp_activate_dev(dev) < 0) { |
1197 | snd_printk(KERN_INFO "sscape: device is inactive\n" ); |
1198 | return -EBUSY; |
1199 | } |
1200 | } |
1201 | |
1202 | /* |
1203 | * Create a new ALSA sound card entry, in anticipation |
1204 | * of detecting our hardware ... |
1205 | */ |
1206 | ret = snd_devm_card_new(parent: &pcard->card->dev, |
1207 | idx: index[idx], xid: id[idx], THIS_MODULE, |
1208 | extra_size: sizeof(struct soundscape), card_ret: &card); |
1209 | if (ret < 0) |
1210 | return ret; |
1211 | |
1212 | sscape = get_card_soundscape(c: card); |
1213 | |
1214 | /* |
1215 | * Identify card model ... |
1216 | */ |
1217 | if (!strncmp("ENS4081" , pid->id, 7)) |
1218 | sscape->type = SSCAPE_VIVO; |
1219 | else |
1220 | sscape->type = SSCAPE_PNP; |
1221 | |
1222 | /* |
1223 | * Read the correct parameters off the ISA PnP bus ... |
1224 | */ |
1225 | port[idx] = pnp_port_start(dev, bar: 0); |
1226 | irq[idx] = pnp_irq(dev, bar: 0); |
1227 | mpu_irq[idx] = pnp_irq(dev, bar: 1); |
1228 | dma[idx] = pnp_dma(dev, bar: 0) & 0x03; |
1229 | if (sscape->type == SSCAPE_PNP) { |
1230 | dma2[idx] = dma[idx]; |
1231 | wss_port[idx] = CODEC_IO(port[idx]); |
1232 | } else { |
1233 | wss_port[idx] = pnp_port_start(dev, bar: 1); |
1234 | dma2[idx] = pnp_dma(dev, bar: 1); |
1235 | } |
1236 | |
1237 | ret = create_sscape(dev: idx, card); |
1238 | if (ret < 0) |
1239 | return ret; |
1240 | |
1241 | ret = snd_card_register(card); |
1242 | if (ret < 0) { |
1243 | snd_printk(KERN_ERR "sscape: Failed to register sound card\n" ); |
1244 | return ret; |
1245 | } |
1246 | |
1247 | pnp_set_card_drvdata(pcard, data: card); |
1248 | ++idx; |
1249 | return 0; |
1250 | } |
1251 | |
1252 | static struct pnp_card_driver sscape_pnpc_driver = { |
1253 | .flags = PNP_DRIVER_RES_DO_NOT_CHANGE, |
1254 | .name = "sscape" , |
1255 | .id_table = sscape_pnpids, |
1256 | .probe = sscape_pnp_detect, |
1257 | }; |
1258 | |
1259 | #endif /* CONFIG_PNP */ |
1260 | |
1261 | static int __init sscape_init(void) |
1262 | { |
1263 | int err; |
1264 | |
1265 | err = isa_register_driver(&snd_sscape_driver, SNDRV_CARDS); |
1266 | #ifdef CONFIG_PNP |
1267 | if (!err) |
1268 | isa_registered = 1; |
1269 | |
1270 | err = pnp_register_card_driver(drv: &sscape_pnpc_driver); |
1271 | if (!err) |
1272 | pnp_registered = 1; |
1273 | |
1274 | if (isa_registered) |
1275 | err = 0; |
1276 | #endif |
1277 | return err; |
1278 | } |
1279 | |
1280 | static void __exit sscape_exit(void) |
1281 | { |
1282 | #ifdef CONFIG_PNP |
1283 | if (pnp_registered) |
1284 | pnp_unregister_card_driver(drv: &sscape_pnpc_driver); |
1285 | if (isa_registered) |
1286 | #endif |
1287 | isa_unregister_driver(&snd_sscape_driver); |
1288 | } |
1289 | |
1290 | module_init(sscape_init); |
1291 | module_exit(sscape_exit); |
1292 | |