source: GPL/trunk/alsa-kernel/pci/als300.c@ 703

Last change on this file since 703 was 703, checked in by David Azarewicz, 4 years ago

Merge changes from next branch.
File size: 20.5 KB
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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * als300.c - driver for Avance Logic ALS300/ALS300+ soundcards.
4 * Copyright (C) 2005 by Ash Willis <ashwillis@programmer.net>
5 *
6 * TODO
7 * 4 channel playback for ALS300+
8 * gameport
9 * mpu401
10 * opl3
11 *
12 * NOTES
13 * The BLOCK_COUNTER registers for the ALS300(+) return a figure related to
14 * the position in the current period, NOT the whole buffer. It is important
15 * to know which period we are in so we can calculate the correct pointer.
16 * This is why we always use 2 periods. We can then use a flip-flop variable
17 * to keep track of what period we are in.
18 */
19
20#include <linux/delay.h>
21#include <linux/init.h>
22#include <linux/module.h>
23#include <linux/pci.h>
24#include <linux/dma-mapping.h>
25#include <linux/interrupt.h>
26#include <linux/slab.h>
27#include <linux/io.h>
28
29#include <sound/core.h>
30#include <sound/control.h>
31#include <sound/initval.h>
32#include <sound/pcm.h>
33#include <sound/pcm_params.h>
34#include <sound/ac97_codec.h>
35#include <sound/opl3.h>
36
37/* snd_als300_set_irq_flag */
38#define IRQ_DISABLE 0
39#define IRQ_ENABLE 1
40
41/* I/O port layout */
42#define AC97_ACCESS 0x00
43#define AC97_READ 0x04
44#define AC97_STATUS 0x06
45#define AC97_DATA_AVAIL (1<<6)
46#define AC97_BUSY (1<<7)
47#define ALS300_IRQ_STATUS 0x07 /* ALS300 Only */
48#define IRQ_PLAYBACK (1<<3)
49#define IRQ_CAPTURE (1<<2)
50#define GCR_DATA 0x08
51#define GCR_INDEX 0x0C
52#define ALS300P_DRAM_IRQ_STATUS 0x0D /* ALS300+ Only */
53#define MPU_IRQ_STATUS 0x0E /* ALS300 Rev. E+, ALS300+ */
54#define ALS300P_IRQ_STATUS 0x0F /* ALS300+ Only */
55
56/* General Control Registers */
57#define PLAYBACK_START 0x80
58#define PLAYBACK_END 0x81
59#define PLAYBACK_CONTROL 0x82
60#define TRANSFER_START (1<<16)
61#define FIFO_PAUSE (1<<17)
62#define RECORD_START 0x83
63#define RECORD_END 0x84
64#define RECORD_CONTROL 0x85
65#define DRAM_WRITE_CONTROL 0x8B
66#define WRITE_TRANS_START (1<<16)
67#define DRAM_MODE_2 (1<<17)
68#define MISC_CONTROL 0x8C
69#define IRQ_SET_BIT (1<<15)
70#define VMUTE_NORMAL (1<<20)
71#define MMUTE_NORMAL (1<<21)
72#define MUS_VOC_VOL 0x8E
73#define PLAYBACK_BLOCK_COUNTER 0x9A
74#define RECORD_BLOCK_COUNTER 0x9B
75
76#define DEBUG_PLAY_REC 0
77
78#if DEBUG_PLAY_REC
79#define snd_als300_dbgplay(format, args...) printk(KERN_ERR format, ##args)
80#else
81#define snd_als300_dbgplay(format, args...)
82#endif
83
84enum {DEVICE_ALS300, DEVICE_ALS300_PLUS};
85
86MODULE_AUTHOR("Ash Willis <ashwillis@programmer.net>");
87MODULE_DESCRIPTION("Avance Logic ALS300");
88MODULE_LICENSE("GPL");
89
90static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
91static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
92static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
93
94module_param_array(index, int, NULL, 0444);
95MODULE_PARM_DESC(index, "Index value for ALS300 sound card.");
96module_param_array(id, charp, NULL, 0444);
97MODULE_PARM_DESC(id, "ID string for ALS300 sound card.");
98module_param_array(enable, bool, NULL, 0444);
99MODULE_PARM_DESC(enable, "Enable ALS300 sound card.");
100
101struct snd_als300 {
102 unsigned long port;
103 spinlock_t reg_lock;
104 struct snd_card *card;
105 struct pci_dev *pci;
106
107 struct snd_pcm *pcm;
108 struct snd_pcm_substream *playback_substream;
109 struct snd_pcm_substream *capture_substream;
110
111 struct snd_ac97 *ac97;
112 struct snd_opl3 *opl3;
113
114 struct resource *res_port;
115
116 int irq;
117
118 int chip_type; /* ALS300 or ALS300+ */
119
120 char revision;
121};
122
123struct snd_als300_substream_data {
124 int period_flipflop;
125 int control_register;
126 int block_counter_register;
127};
128
129static const struct pci_device_id snd_als300_ids[] = {
130 { 0x4005, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALS300 },
131 { 0x4005, 0x0308, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALS300_PLUS },
132 { 0, }
133};
134
135MODULE_DEVICE_TABLE(pci, snd_als300_ids);
136
137static inline u32 snd_als300_gcr_read(unsigned long port, unsigned short reg)
138{
139 outb(reg, port+GCR_INDEX);
140 return inl(port+GCR_DATA);
141}
142
143static inline void snd_als300_gcr_write(unsigned long port,
144 unsigned short reg, u32 val)
145{
146 outb(reg, port+GCR_INDEX);
147 outl(val, port+GCR_DATA);
148}
149
150/* Enable/Disable Interrupts */
151static void snd_als300_set_irq_flag(struct snd_als300 *chip, int cmd)
152{
153 u32 tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL);
154
155 /* boolean XOR check, since old vs. new hardware have
156 directly reversed bit setting for ENABLE and DISABLE.
157 ALS300+ acts like newer versions of ALS300 */
158 if (((chip->revision > 5 || chip->chip_type == DEVICE_ALS300_PLUS) ^
159 (cmd == IRQ_ENABLE)) == 0)
160 tmp |= IRQ_SET_BIT;
161 else
162 tmp &= ~IRQ_SET_BIT;
163 snd_als300_gcr_write(chip->port, MISC_CONTROL, tmp);
164}
165
166static int snd_als300_free(struct snd_als300 *chip)
167{
168 snd_als300_set_irq_flag(chip, IRQ_DISABLE);
169 if (chip->irq >= 0)
170 free_irq(chip->irq, chip);
171 pci_release_regions(chip->pci);
172 pci_disable_device(chip->pci);
173 kfree(chip);
174 return 0;
175}
176
177static int snd_als300_dev_free(struct snd_device *device)
178{
179 struct snd_als300 *chip = device->device_data;
180 return snd_als300_free(chip);
181}
182
183static irqreturn_t snd_als300_interrupt(int irq, void *dev_id)
184{
185 u8 status;
186 struct snd_als300 *chip = dev_id;
187 struct snd_als300_substream_data *data;
188
189 status = inb(chip->port+ALS300_IRQ_STATUS);
190 if (!status) /* shared IRQ, for different device?? Exit ASAP! */
191 return IRQ_NONE;
192
193 /* ACK everything ASAP */
194 outb(status, chip->port+ALS300_IRQ_STATUS);
195 if (status & IRQ_PLAYBACK) {
196 if (chip->pcm && chip->playback_substream) {
197 data = chip->playback_substream->runtime->private_data;
198 data->period_flipflop ^= 1;
199 snd_pcm_period_elapsed(chip->playback_substream);
200 snd_als300_dbgplay("IRQ_PLAYBACK\n");
201 }
202 }
203 if (status & IRQ_CAPTURE) {
204 if (chip->pcm && chip->capture_substream) {
205 data = chip->capture_substream->runtime->private_data;
206 data->period_flipflop ^= 1;
207 snd_pcm_period_elapsed(chip->capture_substream);
208 snd_als300_dbgplay("IRQ_CAPTURE\n");
209 }
210 }
211 return IRQ_HANDLED;
212}
213
214static irqreturn_t snd_als300plus_interrupt(int irq, void *dev_id)
215{
216 u8 general, mpu, dram;
217 struct snd_als300 *chip = dev_id;
218 struct snd_als300_substream_data *data;
219
220 general = inb(chip->port+ALS300P_IRQ_STATUS);
221 mpu = inb(chip->port+MPU_IRQ_STATUS);
222 dram = inb(chip->port+ALS300P_DRAM_IRQ_STATUS);
223
224 /* shared IRQ, for different device?? Exit ASAP! */
225 if ((general == 0) && ((mpu & 0x80) == 0) && ((dram & 0x01) == 0))
226 return IRQ_NONE;
227
228 if (general & IRQ_PLAYBACK) {
229 if (chip->pcm && chip->playback_substream) {
230 outb(IRQ_PLAYBACK, chip->port+ALS300P_IRQ_STATUS);
231 data = chip->playback_substream->runtime->private_data;
232 data->period_flipflop ^= 1;
233 snd_pcm_period_elapsed(chip->playback_substream);
234 snd_als300_dbgplay("IRQ_PLAYBACK\n");
235 }
236 }
237 if (general & IRQ_CAPTURE) {
238 if (chip->pcm && chip->capture_substream) {
239 outb(IRQ_CAPTURE, chip->port+ALS300P_IRQ_STATUS);
240 data = chip->capture_substream->runtime->private_data;
241 data->period_flipflop ^= 1;
242 snd_pcm_period_elapsed(chip->capture_substream);
243 snd_als300_dbgplay("IRQ_CAPTURE\n");
244 }
245 }
246 /* FIXME: Ack other interrupt types. Not important right now as
247 * those other devices aren't enabled. */
248 return IRQ_HANDLED;
249}
250
251static void snd_als300_remove(struct pci_dev *pci)
252{
253 snd_card_free(pci_get_drvdata(pci));
254}
255
256static unsigned short snd_als300_ac97_read(struct snd_ac97 *ac97,
257 unsigned short reg)
258{
259 int i;
260 struct snd_als300 *chip = ac97->private_data;
261
262 for (i = 0; i < 1000; i++) {
263 if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0)
264 break;
265 udelay(10);
266 }
267 outl((reg << 24) | (1 << 31), chip->port+AC97_ACCESS);
268
269 for (i = 0; i < 1000; i++) {
270 if ((inb(chip->port+AC97_STATUS) & (AC97_DATA_AVAIL)) != 0)
271 break;
272 udelay(10);
273 }
274 return inw(chip->port+AC97_READ);
275}
276
277static void snd_als300_ac97_write(struct snd_ac97 *ac97,
278 unsigned short reg, unsigned short val)
279{
280 int i;
281 struct snd_als300 *chip = ac97->private_data;
282
283 for (i = 0; i < 1000; i++) {
284 if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0)
285 break;
286 udelay(10);
287 }
288 outl((reg << 24) | val, chip->port+AC97_ACCESS);
289}
290
291static int snd_als300_ac97(struct snd_als300 *chip)
292{
293 struct snd_ac97_bus *bus;
294 struct snd_ac97_template ac97;
295 int err;
296 static const struct snd_ac97_bus_ops ops = {
297 .write = snd_als300_ac97_write,
298 .read = snd_als300_ac97_read,
299 };
300
301 err = snd_ac97_bus(chip->card, 0, &ops, NULL, &bus);
302 if (err < 0)
303 return err;
304
305 memset(&ac97, 0, sizeof(ac97));
306 ac97.private_data = chip;
307
308 return snd_ac97_mixer(bus, &ac97, &chip->ac97);
309}
310
311/* hardware definition
312 *
313 * In AC97 mode, we always use 48k/16bit/stereo.
314 * Any request to change data type is ignored by
315 * the card when it is running outside of legacy
316 * mode.
317 */
318static const struct snd_pcm_hardware snd_als300_playback_hw =
319{
320 .info = (SNDRV_PCM_INFO_MMAP |
321 SNDRV_PCM_INFO_INTERLEAVED |
322 SNDRV_PCM_INFO_PAUSE |
323 SNDRV_PCM_INFO_MMAP_VALID),
324 .formats = SNDRV_PCM_FMTBIT_S16,
325 .rates = SNDRV_PCM_RATE_48000,
326 .rate_min = 48000,
327 .rate_max = 48000,
328 .channels_min = 2,
329 .channels_max = 2,
330 .buffer_bytes_max = 64 * 1024,
331 .period_bytes_min = 64,
332 .period_bytes_max = 32 * 1024,
333 .periods_min = 2,
334 .periods_max = 2,
335};
336
337static const struct snd_pcm_hardware snd_als300_capture_hw =
338{
339 .info = (SNDRV_PCM_INFO_MMAP |
340 SNDRV_PCM_INFO_INTERLEAVED |
341 SNDRV_PCM_INFO_PAUSE |
342 SNDRV_PCM_INFO_MMAP_VALID),
343 .formats = SNDRV_PCM_FMTBIT_S16,
344 .rates = SNDRV_PCM_RATE_48000,
345 .rate_min = 48000,
346 .rate_max = 48000,
347 .channels_min = 2,
348 .channels_max = 2,
349 .buffer_bytes_max = 64 * 1024,
350 .period_bytes_min = 64,
351 .period_bytes_max = 32 * 1024,
352 .periods_min = 2,
353 .periods_max = 2,
354};
355
356static int snd_als300_playback_open(struct snd_pcm_substream *substream)
357{
358 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
359 struct snd_pcm_runtime *runtime = substream->runtime;
360 struct snd_als300_substream_data *data = kzalloc(sizeof(*data),
361 GFP_KERNEL);
362
363 if (!data)
364 return -ENOMEM;
365 chip->playback_substream = substream;
366 runtime->hw = snd_als300_playback_hw;
367 runtime->private_data = data;
368 data->control_register = PLAYBACK_CONTROL;
369 data->block_counter_register = PLAYBACK_BLOCK_COUNTER;
370 return 0;
371}
372
373static int snd_als300_playback_close(struct snd_pcm_substream *substream)
374{
375 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
376 struct snd_als300_substream_data *data;
377
378 data = substream->runtime->private_data;
379 kfree(data);
380 chip->playback_substream = NULL;
381 return 0;
382}
383
384static int snd_als300_capture_open(struct snd_pcm_substream *substream)
385{
386 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
387 struct snd_pcm_runtime *runtime = substream->runtime;
388 struct snd_als300_substream_data *data = kzalloc(sizeof(*data),
389 GFP_KERNEL);
390
391 if (!data)
392 return -ENOMEM;
393 chip->capture_substream = substream;
394 runtime->hw = snd_als300_capture_hw;
395 runtime->private_data = data;
396 data->control_register = RECORD_CONTROL;
397 data->block_counter_register = RECORD_BLOCK_COUNTER;
398 return 0;
399}
400
401static int snd_als300_capture_close(struct snd_pcm_substream *substream)
402{
403 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
404 struct snd_als300_substream_data *data;
405
406 data = substream->runtime->private_data;
407 kfree(data);
408 chip->capture_substream = NULL;
409 return 0;
410}
411
412static int snd_als300_playback_prepare(struct snd_pcm_substream *substream)
413{
414 u32 tmp;
415 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
416 struct snd_pcm_runtime *runtime = substream->runtime;
417 unsigned short period_bytes = snd_pcm_lib_period_bytes(substream);
418 unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream);
419
420 spin_lock_irq(&chip->reg_lock);
421 tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL);
422 tmp &= ~TRANSFER_START;
423
424 snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n",
425 period_bytes, buffer_bytes);
426
427 /* set block size */
428 tmp &= 0xffff0000;
429 tmp |= period_bytes - 1;
430 snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL, tmp);
431
432 /* set dma area */
433 snd_als300_gcr_write(chip->port, PLAYBACK_START,
434 runtime->dma_addr);
435 snd_als300_gcr_write(chip->port, PLAYBACK_END,
436 runtime->dma_addr + buffer_bytes - 1);
437 spin_unlock_irq(&chip->reg_lock);
438 return 0;
439}
440
441static int snd_als300_capture_prepare(struct snd_pcm_substream *substream)
442{
443 u32 tmp;
444 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
445 struct snd_pcm_runtime *runtime = substream->runtime;
446 unsigned short period_bytes = snd_pcm_lib_period_bytes(substream);
447 unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream);
448
449 spin_lock_irq(&chip->reg_lock);
450 tmp = snd_als300_gcr_read(chip->port, RECORD_CONTROL);
451 tmp &= ~TRANSFER_START;
452
453 snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n", period_bytes,
454 buffer_bytes);
455
456 /* set block size */
457 tmp &= 0xffff0000;
458 tmp |= period_bytes - 1;
459
460 /* set dma area */
461 snd_als300_gcr_write(chip->port, RECORD_CONTROL, tmp);
462 snd_als300_gcr_write(chip->port, RECORD_START,
463 runtime->dma_addr);
464 snd_als300_gcr_write(chip->port, RECORD_END,
465 runtime->dma_addr + buffer_bytes - 1);
466 spin_unlock_irq(&chip->reg_lock);
467 return 0;
468}
469
470static int snd_als300_trigger(struct snd_pcm_substream *substream, int cmd)
471{
472 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
473 u32 tmp;
474 struct snd_als300_substream_data *data;
475 unsigned short reg;
476 int ret = 0;
477
478 data = substream->runtime->private_data;
479 reg = data->control_register;
480
481 spin_lock(&chip->reg_lock);
482 switch (cmd) {
483 case SNDRV_PCM_TRIGGER_START:
484 case SNDRV_PCM_TRIGGER_RESUME:
485 tmp = snd_als300_gcr_read(chip->port, reg);
486 data->period_flipflop = 1;
487 snd_als300_gcr_write(chip->port, reg, tmp | TRANSFER_START);
488 snd_als300_dbgplay("TRIGGER START\n");
489 break;
490 case SNDRV_PCM_TRIGGER_STOP:
491 case SNDRV_PCM_TRIGGER_SUSPEND:
492 tmp = snd_als300_gcr_read(chip->port, reg);
493 snd_als300_gcr_write(chip->port, reg, tmp & ~TRANSFER_START);
494 snd_als300_dbgplay("TRIGGER STOP\n");
495 break;
496 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
497 tmp = snd_als300_gcr_read(chip->port, reg);
498 snd_als300_gcr_write(chip->port, reg, tmp | FIFO_PAUSE);
499 snd_als300_dbgplay("TRIGGER PAUSE\n");
500 break;
501 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
502 tmp = snd_als300_gcr_read(chip->port, reg);
503 snd_als300_gcr_write(chip->port, reg, tmp & ~FIFO_PAUSE);
504 snd_als300_dbgplay("TRIGGER RELEASE\n");
505 break;
506 default:
507 snd_als300_dbgplay("TRIGGER INVALID\n");
508 ret = -EINVAL;
509 }
510 spin_unlock(&chip->reg_lock);
511 return ret;
512}
513
514static snd_pcm_uframes_t snd_als300_pointer(struct snd_pcm_substream *substream)
515{
516 u16 current_ptr;
517 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
518 struct snd_als300_substream_data *data;
519 unsigned short period_bytes;
520
521 data = substream->runtime->private_data;
522 period_bytes = snd_pcm_lib_period_bytes(substream);
523
524 spin_lock(&chip->reg_lock);
525 current_ptr = (u16) snd_als300_gcr_read(chip->port,
526 data->block_counter_register) + 4;
527 spin_unlock(&chip->reg_lock);
528 if (current_ptr > period_bytes)
529 current_ptr = 0;
530 else
531 current_ptr = period_bytes - current_ptr;
532
533 if (data->period_flipflop == 0)
534 current_ptr += period_bytes;
535 snd_als300_dbgplay("Pointer (bytes): %d\n", current_ptr);
536 return bytes_to_frames(substream->runtime, current_ptr);
537}
538
539static const struct snd_pcm_ops snd_als300_playback_ops = {
540 .open = snd_als300_playback_open,
541 .close = snd_als300_playback_close,
542 .prepare = snd_als300_playback_prepare,
543 .trigger = snd_als300_trigger,
544 .pointer = snd_als300_pointer,
545};
546
547static const struct snd_pcm_ops snd_als300_capture_ops = {
548 .open = snd_als300_capture_open,
549 .close = snd_als300_capture_close,
550 .prepare = snd_als300_capture_prepare,
551 .trigger = snd_als300_trigger,
552 .pointer = snd_als300_pointer,
553};
554
555static int snd_als300_new_pcm(struct snd_als300 *chip)
556{
557 struct snd_pcm *pcm;
558 int err;
559
560 err = snd_pcm_new(chip->card, "ALS300", 0, 1, 1, &pcm);
561 if (err < 0)
562 return err;
563 pcm->private_data = chip;
564 strcpy(pcm->name, "ALS300");
565 chip->pcm = pcm;
566
567 /* set operators */
568 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
569 &snd_als300_playback_ops);
570 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
571 &snd_als300_capture_ops);
572
573 /* pre-allocation of buffers */
574 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, &chip->pci->dev,
575 64*1024, 64*1024);
576 return 0;
577}
578
579static void snd_als300_init(struct snd_als300 *chip)
580{
581 unsigned long flags;
582 u32 tmp;
583
584 spin_lock_irqsave(&chip->reg_lock, flags);
585 chip->revision = (snd_als300_gcr_read(chip->port, MISC_CONTROL) >> 16)
586 & 0x0000000F;
587 /* Setup DRAM */
588 tmp = snd_als300_gcr_read(chip->port, DRAM_WRITE_CONTROL);
589 snd_als300_gcr_write(chip->port, DRAM_WRITE_CONTROL,
590 (tmp | DRAM_MODE_2)
591 & ~WRITE_TRANS_START);
592
593 /* Enable IRQ output */
594 snd_als300_set_irq_flag(chip, IRQ_ENABLE);
595
596 /* Unmute hardware devices so their outputs get routed to
597 * the onboard mixer */
598 tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL);
599 snd_als300_gcr_write(chip->port, MISC_CONTROL,
600 tmp | VMUTE_NORMAL | MMUTE_NORMAL);
601
602 /* Reset volumes */
603 snd_als300_gcr_write(chip->port, MUS_VOC_VOL, 0);
604
605 /* Make sure playback transfer is stopped */
606 tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL);
607 snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL,
608 tmp & ~TRANSFER_START);
609 spin_unlock_irqrestore(&chip->reg_lock, flags);
610}
611
612static int snd_als300_create(struct snd_card *card,
613 struct pci_dev *pci, int chip_type,
614 struct snd_als300 **rchip)
615{
616 struct snd_als300 *chip;
617 void *irq_handler;
618 int err;
619
620 static const struct snd_device_ops ops = {
621 .dev_free = snd_als300_dev_free,
622 };
623 *rchip = NULL;
624
625 err = pci_enable_device(pci);
626 if (err < 0)
627 return err;
628
629 if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(28))) {
630 dev_err(card->dev, "error setting 28bit DMA mask\n");
631 pci_disable_device(pci);
632 return -ENXIO;
633 }
634 pci_set_master(pci);
635
636 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
637 if (chip == NULL) {
638 pci_disable_device(pci);
639 return -ENOMEM;
640 }
641
642 chip->card = card;
643 chip->pci = pci;
644 chip->irq = -1;
645 chip->chip_type = chip_type;
646 spin_lock_init(&chip->reg_lock);
647
648 err = pci_request_regions(pci, "ALS300");
649 if (err < 0) {
650 kfree(chip);
651 pci_disable_device(pci);
652 return err;
653 }
654 chip->port = pci_resource_start(pci, 0);
655
656 if (chip->chip_type == DEVICE_ALS300_PLUS)
657 irq_handler = snd_als300plus_interrupt;
658 else
659 irq_handler = snd_als300_interrupt;
660
661 if (request_irq(pci->irq, irq_handler, IRQF_SHARED,
662 KBUILD_MODNAME, chip)) {
663 dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
664 snd_als300_free(chip);
665 return -EBUSY;
666 }
667 chip->irq = pci->irq;
668 card->sync_irq = chip->irq;
669
670 snd_als300_init(chip);
671
672 err = snd_als300_ac97(chip);
673 if (err < 0) {
674 dev_err(card->dev, "Could not create ac97\n");
675 snd_als300_free(chip);
676 return err;
677 }
678
679 err = snd_als300_new_pcm(chip);
680 if (err < 0) {
681 dev_err(card->dev, "Could not create PCM\n");
682 snd_als300_free(chip);
683 return err;
684 }
685
686 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
687 if (err < 0) {
688 snd_als300_free(chip);
689 return err;
690 }
691
692 *rchip = chip;
693 return 0;
694}
695
696#ifdef CONFIG_PM_SLEEP
697static int snd_als300_suspend(struct device *dev)
698{
699 struct snd_card *card = dev_get_drvdata(dev);
700 struct snd_als300 *chip = card->private_data;
701
702 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
703 snd_ac97_suspend(chip->ac97);
704 return 0;
705}
706
707static int snd_als300_resume(struct device *dev)
708{
709 struct snd_card *card = dev_get_drvdata(dev);
710 struct snd_als300 *chip = card->private_data;
711
712 snd_als300_init(chip);
713 snd_ac97_resume(chip->ac97);
714
715 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
716 return 0;
717}
718
719static SIMPLE_DEV_PM_OPS(snd_als300_pm, snd_als300_suspend, snd_als300_resume);
720#define SND_ALS300_PM_OPS &snd_als300_pm
721#else
722#define SND_ALS300_PM_OPS NULL
723#endif
724
725static int snd_als300_probe(struct pci_dev *pci,
726 const struct pci_device_id *pci_id)
727{
728 static int dev;
729 struct snd_card *card;
730 struct snd_als300 *chip;
731 int err, chip_type;
732
733 if (dev >= SNDRV_CARDS)
734 return -ENODEV;
735 if (!enable[dev]) {
736 dev++;
737 return -ENOENT;
738 }
739
740 err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
741 0, &card);
742
743 if (err < 0)
744 return err;
745
746 chip_type = pci_id->driver_data;
747
748 err = snd_als300_create(card, pci, chip_type, &chip);
749 if (err < 0) {
750 snd_card_free(card);
751 return err;
752 }
753 card->private_data = chip;
754
755 strcpy(card->driver, "ALS300");
756 if (chip->chip_type == DEVICE_ALS300_PLUS)
757 /* don't know much about ALS300+ yet
758 * print revision number for now */
759 sprintf(card->shortname, "ALS300+ (Rev. %d)", chip->revision);
760 else
761 sprintf(card->shortname, "ALS300 (Rev. %c)", 'A' +
762 chip->revision - 1);
763 sprintf(card->longname, "%s at 0x%lx irq %i",
764 card->shortname, chip->port, chip->irq);
765
766 err = snd_card_register(card);
767 if (err < 0) {
768 snd_card_free(card);
769 return err;
770 }
771 pci_set_drvdata(pci, card);
772 dev++;
773 return 0;
774}
775
776static struct pci_driver als300_driver = {
777 .name = KBUILD_MODNAME,
778 .id_table = snd_als300_ids,
779 .probe = snd_als300_probe,
780 .remove = snd_als300_remove,
781 .driver = {
782 .pm = SND_ALS300_PM_OPS,
783 },
784};
785
786module_pci_driver(als300_driver);
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