742 lines · c
1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * als300.c - driver for Avance Logic ALS300/ALS300+ soundcards.4 * Copyright (C) 2005 by Ash Willis <ashwillis@programmer.net>5 *6 * TODO7 * 4 channel playback for ALS300+8 * gameport9 * mpu40110 * opl311 *12 * NOTES13 * The BLOCK_COUNTER registers for the ALS300(+) return a figure related to14 * the position in the current period, NOT the whole buffer. It is important15 * 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 variable17 * 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 039#define IRQ_ENABLE 140 41/* I/O port layout */42#define AC97_ACCESS 0x0043#define AC97_READ 0x0444#define AC97_STATUS 0x0645#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 0x0851#define GCR_INDEX 0x0C52#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 0x8058#define PLAYBACK_END 0x8159#define PLAYBACK_CONTROL 0x8260#define TRANSFER_START (1<<16)61#define FIFO_PAUSE (1<<17)62#define RECORD_START 0x8363#define RECORD_END 0x8464#define RECORD_CONTROL 0x8565#define DRAM_WRITE_CONTROL 0x8B66#define WRITE_TRANS_START (1<<16)67#define DRAM_MODE_2 (1<<17)68#define MISC_CONTROL 0x8C69#define IRQ_SET_BIT (1<<15)70#define VMUTE_NORMAL (1<<20)71#define MMUTE_NORMAL (1<<21)72#define MUS_VOC_VOL 0x8E73#define PLAYBACK_BLOCK_COUNTER 0x9A74#define RECORD_BLOCK_COUNTER 0x9B75 76#define DEBUG_PLAY_REC 077 78#if DEBUG_PLAY_REC79#define snd_als300_dbgplay(format, args...) printk(KERN_ERR format, ##args)80#else81#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 have156 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 else162 tmp &= ~IRQ_SET_BIT;163 snd_als300_gcr_write(chip->port, MISC_CONTROL, tmp);164}165 166static void snd_als300_free(struct snd_card *card)167{168 struct snd_als300 *chip = card->private_data;169 170 snd_als300_set_irq_flag(chip, IRQ_DISABLE);171}172 173static irqreturn_t snd_als300_interrupt(int irq, void *dev_id)174{175 u8 status;176 struct snd_als300 *chip = dev_id;177 struct snd_als300_substream_data *data;178 179 status = inb(chip->port+ALS300_IRQ_STATUS);180 if (!status) /* shared IRQ, for different device?? Exit ASAP! */181 return IRQ_NONE;182 183 /* ACK everything ASAP */184 outb(status, chip->port+ALS300_IRQ_STATUS);185 if (status & IRQ_PLAYBACK) {186 if (chip->pcm && chip->playback_substream) {187 data = chip->playback_substream->runtime->private_data;188 data->period_flipflop ^= 1;189 snd_pcm_period_elapsed(chip->playback_substream);190 snd_als300_dbgplay("IRQ_PLAYBACK\n");191 }192 }193 if (status & IRQ_CAPTURE) {194 if (chip->pcm && chip->capture_substream) {195 data = chip->capture_substream->runtime->private_data;196 data->period_flipflop ^= 1;197 snd_pcm_period_elapsed(chip->capture_substream);198 snd_als300_dbgplay("IRQ_CAPTURE\n");199 }200 }201 return IRQ_HANDLED;202}203 204static irqreturn_t snd_als300plus_interrupt(int irq, void *dev_id)205{206 u8 general, mpu, dram;207 struct snd_als300 *chip = dev_id;208 struct snd_als300_substream_data *data;209 210 general = inb(chip->port+ALS300P_IRQ_STATUS);211 mpu = inb(chip->port+MPU_IRQ_STATUS);212 dram = inb(chip->port+ALS300P_DRAM_IRQ_STATUS);213 214 /* shared IRQ, for different device?? Exit ASAP! */215 if ((general == 0) && ((mpu & 0x80) == 0) && ((dram & 0x01) == 0))216 return IRQ_NONE;217 218 if (general & IRQ_PLAYBACK) {219 if (chip->pcm && chip->playback_substream) {220 outb(IRQ_PLAYBACK, chip->port+ALS300P_IRQ_STATUS);221 data = chip->playback_substream->runtime->private_data;222 data->period_flipflop ^= 1;223 snd_pcm_period_elapsed(chip->playback_substream);224 snd_als300_dbgplay("IRQ_PLAYBACK\n");225 }226 }227 if (general & IRQ_CAPTURE) {228 if (chip->pcm && chip->capture_substream) {229 outb(IRQ_CAPTURE, chip->port+ALS300P_IRQ_STATUS);230 data = chip->capture_substream->runtime->private_data;231 data->period_flipflop ^= 1;232 snd_pcm_period_elapsed(chip->capture_substream);233 snd_als300_dbgplay("IRQ_CAPTURE\n");234 }235 }236 /* FIXME: Ack other interrupt types. Not important right now as237 * those other devices aren't enabled. */238 return IRQ_HANDLED;239}240 241static unsigned short snd_als300_ac97_read(struct snd_ac97 *ac97,242 unsigned short reg)243{244 int i;245 struct snd_als300 *chip = ac97->private_data;246 247 for (i = 0; i < 1000; i++) {248 if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0)249 break;250 udelay(10);251 }252 outl((reg << 24) | (1 << 31), chip->port+AC97_ACCESS);253 254 for (i = 0; i < 1000; i++) {255 if ((inb(chip->port+AC97_STATUS) & (AC97_DATA_AVAIL)) != 0)256 break;257 udelay(10);258 }259 return inw(chip->port+AC97_READ);260}261 262static void snd_als300_ac97_write(struct snd_ac97 *ac97,263 unsigned short reg, unsigned short val)264{265 int i;266 struct snd_als300 *chip = ac97->private_data;267 268 for (i = 0; i < 1000; i++) {269 if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0)270 break;271 udelay(10);272 }273 outl((reg << 24) | val, chip->port+AC97_ACCESS);274}275 276static int snd_als300_ac97(struct snd_als300 *chip)277{278 struct snd_ac97_bus *bus;279 struct snd_ac97_template ac97;280 int err;281 static const struct snd_ac97_bus_ops ops = {282 .write = snd_als300_ac97_write,283 .read = snd_als300_ac97_read,284 };285 286 err = snd_ac97_bus(chip->card, 0, &ops, NULL, &bus);287 if (err < 0)288 return err;289 290 memset(&ac97, 0, sizeof(ac97));291 ac97.private_data = chip;292 293 return snd_ac97_mixer(bus, &ac97, &chip->ac97);294}295 296/* hardware definition297 *298 * In AC97 mode, we always use 48k/16bit/stereo.299 * Any request to change data type is ignored by300 * the card when it is running outside of legacy301 * mode.302 */303static const struct snd_pcm_hardware snd_als300_playback_hw =304{305 .info = (SNDRV_PCM_INFO_MMAP |306 SNDRV_PCM_INFO_INTERLEAVED |307 SNDRV_PCM_INFO_PAUSE |308 SNDRV_PCM_INFO_MMAP_VALID),309 .formats = SNDRV_PCM_FMTBIT_S16,310 .rates = SNDRV_PCM_RATE_48000,311 .rate_min = 48000,312 .rate_max = 48000,313 .channels_min = 2,314 .channels_max = 2,315 .buffer_bytes_max = 64 * 1024,316 .period_bytes_min = 64,317 .period_bytes_max = 32 * 1024,318 .periods_min = 2,319 .periods_max = 2,320};321 322static const struct snd_pcm_hardware snd_als300_capture_hw =323{324 .info = (SNDRV_PCM_INFO_MMAP |325 SNDRV_PCM_INFO_INTERLEAVED |326 SNDRV_PCM_INFO_PAUSE |327 SNDRV_PCM_INFO_MMAP_VALID),328 .formats = SNDRV_PCM_FMTBIT_S16,329 .rates = SNDRV_PCM_RATE_48000,330 .rate_min = 48000,331 .rate_max = 48000,332 .channels_min = 2,333 .channels_max = 2,334 .buffer_bytes_max = 64 * 1024,335 .period_bytes_min = 64,336 .period_bytes_max = 32 * 1024,337 .periods_min = 2,338 .periods_max = 2,339};340 341static int snd_als300_playback_open(struct snd_pcm_substream *substream)342{343 struct snd_als300 *chip = snd_pcm_substream_chip(substream);344 struct snd_pcm_runtime *runtime = substream->runtime;345 struct snd_als300_substream_data *data = kzalloc(sizeof(*data),346 GFP_KERNEL);347 348 if (!data)349 return -ENOMEM;350 chip->playback_substream = substream;351 runtime->hw = snd_als300_playback_hw;352 runtime->private_data = data;353 data->control_register = PLAYBACK_CONTROL;354 data->block_counter_register = PLAYBACK_BLOCK_COUNTER;355 return 0;356}357 358static int snd_als300_playback_close(struct snd_pcm_substream *substream)359{360 struct snd_als300 *chip = snd_pcm_substream_chip(substream);361 struct snd_als300_substream_data *data;362 363 data = substream->runtime->private_data;364 kfree(data);365 chip->playback_substream = NULL;366 return 0;367}368 369static int snd_als300_capture_open(struct snd_pcm_substream *substream)370{371 struct snd_als300 *chip = snd_pcm_substream_chip(substream);372 struct snd_pcm_runtime *runtime = substream->runtime;373 struct snd_als300_substream_data *data = kzalloc(sizeof(*data),374 GFP_KERNEL);375 376 if (!data)377 return -ENOMEM;378 chip->capture_substream = substream;379 runtime->hw = snd_als300_capture_hw;380 runtime->private_data = data;381 data->control_register = RECORD_CONTROL;382 data->block_counter_register = RECORD_BLOCK_COUNTER;383 return 0;384}385 386static int snd_als300_capture_close(struct snd_pcm_substream *substream)387{388 struct snd_als300 *chip = snd_pcm_substream_chip(substream);389 struct snd_als300_substream_data *data;390 391 data = substream->runtime->private_data;392 kfree(data);393 chip->capture_substream = NULL;394 return 0;395}396 397static int snd_als300_playback_prepare(struct snd_pcm_substream *substream)398{399 u32 tmp;400 struct snd_als300 *chip = snd_pcm_substream_chip(substream);401 struct snd_pcm_runtime *runtime = substream->runtime;402 unsigned short period_bytes = snd_pcm_lib_period_bytes(substream);403 unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream);404 405 spin_lock_irq(&chip->reg_lock);406 tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL);407 tmp &= ~TRANSFER_START;408 409 snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n",410 period_bytes, buffer_bytes);411 412 /* set block size */413 tmp &= 0xffff0000;414 tmp |= period_bytes - 1;415 snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL, tmp);416 417 /* set dma area */418 snd_als300_gcr_write(chip->port, PLAYBACK_START,419 runtime->dma_addr);420 snd_als300_gcr_write(chip->port, PLAYBACK_END,421 runtime->dma_addr + buffer_bytes - 1);422 spin_unlock_irq(&chip->reg_lock);423 return 0;424}425 426static int snd_als300_capture_prepare(struct snd_pcm_substream *substream)427{428 u32 tmp;429 struct snd_als300 *chip = snd_pcm_substream_chip(substream);430 struct snd_pcm_runtime *runtime = substream->runtime;431 unsigned short period_bytes = snd_pcm_lib_period_bytes(substream);432 unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream);433 434 spin_lock_irq(&chip->reg_lock);435 tmp = snd_als300_gcr_read(chip->port, RECORD_CONTROL);436 tmp &= ~TRANSFER_START;437 438 snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n", period_bytes,439 buffer_bytes);440 441 /* set block size */442 tmp &= 0xffff0000;443 tmp |= period_bytes - 1;444 445 /* set dma area */446 snd_als300_gcr_write(chip->port, RECORD_CONTROL, tmp);447 snd_als300_gcr_write(chip->port, RECORD_START,448 runtime->dma_addr);449 snd_als300_gcr_write(chip->port, RECORD_END,450 runtime->dma_addr + buffer_bytes - 1);451 spin_unlock_irq(&chip->reg_lock);452 return 0;453}454 455static int snd_als300_trigger(struct snd_pcm_substream *substream, int cmd)456{457 struct snd_als300 *chip = snd_pcm_substream_chip(substream);458 u32 tmp;459 struct snd_als300_substream_data *data;460 unsigned short reg;461 int ret = 0;462 463 data = substream->runtime->private_data;464 reg = data->control_register;465 466 spin_lock(&chip->reg_lock);467 switch (cmd) {468 case SNDRV_PCM_TRIGGER_START:469 case SNDRV_PCM_TRIGGER_RESUME:470 tmp = snd_als300_gcr_read(chip->port, reg);471 data->period_flipflop = 1;472 snd_als300_gcr_write(chip->port, reg, tmp | TRANSFER_START);473 snd_als300_dbgplay("TRIGGER START\n");474 break;475 case SNDRV_PCM_TRIGGER_STOP:476 case SNDRV_PCM_TRIGGER_SUSPEND:477 tmp = snd_als300_gcr_read(chip->port, reg);478 snd_als300_gcr_write(chip->port, reg, tmp & ~TRANSFER_START);479 snd_als300_dbgplay("TRIGGER STOP\n");480 break;481 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:482 tmp = snd_als300_gcr_read(chip->port, reg);483 snd_als300_gcr_write(chip->port, reg, tmp | FIFO_PAUSE);484 snd_als300_dbgplay("TRIGGER PAUSE\n");485 break;486 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:487 tmp = snd_als300_gcr_read(chip->port, reg);488 snd_als300_gcr_write(chip->port, reg, tmp & ~FIFO_PAUSE);489 snd_als300_dbgplay("TRIGGER RELEASE\n");490 break;491 default:492 snd_als300_dbgplay("TRIGGER INVALID\n");493 ret = -EINVAL;494 }495 spin_unlock(&chip->reg_lock);496 return ret;497}498 499static snd_pcm_uframes_t snd_als300_pointer(struct snd_pcm_substream *substream)500{501 u16 current_ptr;502 struct snd_als300 *chip = snd_pcm_substream_chip(substream);503 struct snd_als300_substream_data *data;504 unsigned short period_bytes;505 506 data = substream->runtime->private_data;507 period_bytes = snd_pcm_lib_period_bytes(substream);508 509 spin_lock(&chip->reg_lock);510 current_ptr = (u16) snd_als300_gcr_read(chip->port,511 data->block_counter_register) + 4;512 spin_unlock(&chip->reg_lock);513 if (current_ptr > period_bytes)514 current_ptr = 0;515 else516 current_ptr = period_bytes - current_ptr;517 518 if (data->period_flipflop == 0)519 current_ptr += period_bytes;520 snd_als300_dbgplay("Pointer (bytes): %d\n", current_ptr);521 return bytes_to_frames(substream->runtime, current_ptr);522}523 524static const struct snd_pcm_ops snd_als300_playback_ops = {525 .open = snd_als300_playback_open,526 .close = snd_als300_playback_close,527 .prepare = snd_als300_playback_prepare,528 .trigger = snd_als300_trigger,529 .pointer = snd_als300_pointer,530};531 532static const struct snd_pcm_ops snd_als300_capture_ops = {533 .open = snd_als300_capture_open,534 .close = snd_als300_capture_close,535 .prepare = snd_als300_capture_prepare,536 .trigger = snd_als300_trigger,537 .pointer = snd_als300_pointer,538};539 540static int snd_als300_new_pcm(struct snd_als300 *chip)541{542 struct snd_pcm *pcm;543 int err;544 545 err = snd_pcm_new(chip->card, "ALS300", 0, 1, 1, &pcm);546 if (err < 0)547 return err;548 pcm->private_data = chip;549 strcpy(pcm->name, "ALS300");550 chip->pcm = pcm;551 552 /* set operators */553 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,554 &snd_als300_playback_ops);555 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,556 &snd_als300_capture_ops);557 558 /* pre-allocation of buffers */559 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, &chip->pci->dev,560 64*1024, 64*1024);561 return 0;562}563 564static void snd_als300_init(struct snd_als300 *chip)565{566 unsigned long flags;567 u32 tmp;568 569 spin_lock_irqsave(&chip->reg_lock, flags);570 chip->revision = (snd_als300_gcr_read(chip->port, MISC_CONTROL) >> 16)571 & 0x0000000F;572 /* Setup DRAM */573 tmp = snd_als300_gcr_read(chip->port, DRAM_WRITE_CONTROL);574 snd_als300_gcr_write(chip->port, DRAM_WRITE_CONTROL,575 (tmp | DRAM_MODE_2)576 & ~WRITE_TRANS_START);577 578 /* Enable IRQ output */579 snd_als300_set_irq_flag(chip, IRQ_ENABLE);580 581 /* Unmute hardware devices so their outputs get routed to582 * the onboard mixer */583 tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL);584 snd_als300_gcr_write(chip->port, MISC_CONTROL,585 tmp | VMUTE_NORMAL | MMUTE_NORMAL);586 587 /* Reset volumes */588 snd_als300_gcr_write(chip->port, MUS_VOC_VOL, 0);589 590 /* Make sure playback transfer is stopped */591 tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL);592 snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL,593 tmp & ~TRANSFER_START);594 spin_unlock_irqrestore(&chip->reg_lock, flags);595}596 597static int snd_als300_create(struct snd_card *card,598 struct pci_dev *pci, int chip_type)599{600 struct snd_als300 *chip = card->private_data;601 void *irq_handler;602 int err;603 604 err = pcim_enable_device(pci);605 if (err < 0)606 return err;607 608 if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(28))) {609 dev_err(card->dev, "error setting 28bit DMA mask\n");610 return -ENXIO;611 }612 pci_set_master(pci);613 614 chip->card = card;615 chip->pci = pci;616 chip->irq = -1;617 chip->chip_type = chip_type;618 spin_lock_init(&chip->reg_lock);619 620 err = pci_request_regions(pci, "ALS300");621 if (err < 0)622 return err;623 624 chip->port = pci_resource_start(pci, 0);625 626 if (chip->chip_type == DEVICE_ALS300_PLUS)627 irq_handler = snd_als300plus_interrupt;628 else629 irq_handler = snd_als300_interrupt;630 631 if (devm_request_irq(&pci->dev, pci->irq, irq_handler, IRQF_SHARED,632 KBUILD_MODNAME, chip)) {633 dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);634 return -EBUSY;635 }636 chip->irq = pci->irq;637 card->sync_irq = chip->irq;638 card->private_free = snd_als300_free;639 640 snd_als300_init(chip);641 642 err = snd_als300_ac97(chip);643 if (err < 0) {644 dev_err(card->dev, "Could not create ac97\n");645 return err;646 }647 648 err = snd_als300_new_pcm(chip);649 if (err < 0) {650 dev_err(card->dev, "Could not create PCM\n");651 return err;652 }653 654 return 0;655}656 657static int snd_als300_suspend(struct device *dev)658{659 struct snd_card *card = dev_get_drvdata(dev);660 struct snd_als300 *chip = card->private_data;661 662 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);663 snd_ac97_suspend(chip->ac97);664 return 0;665}666 667static int snd_als300_resume(struct device *dev)668{669 struct snd_card *card = dev_get_drvdata(dev);670 struct snd_als300 *chip = card->private_data;671 672 snd_als300_init(chip);673 snd_ac97_resume(chip->ac97);674 675 snd_power_change_state(card, SNDRV_CTL_POWER_D0);676 return 0;677}678 679static DEFINE_SIMPLE_DEV_PM_OPS(snd_als300_pm, snd_als300_suspend, snd_als300_resume);680 681static int snd_als300_probe(struct pci_dev *pci,682 const struct pci_device_id *pci_id)683{684 static int dev;685 struct snd_card *card;686 struct snd_als300 *chip;687 int err, chip_type;688 689 if (dev >= SNDRV_CARDS)690 return -ENODEV;691 if (!enable[dev]) {692 dev++;693 return -ENOENT;694 }695 696 err = snd_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,697 sizeof(*chip), &card);698 if (err < 0)699 return err;700 chip = card->private_data;701 702 chip_type = pci_id->driver_data;703 704 err = snd_als300_create(card, pci, chip_type);705 if (err < 0)706 goto error;707 708 strcpy(card->driver, "ALS300");709 if (chip->chip_type == DEVICE_ALS300_PLUS)710 /* don't know much about ALS300+ yet711 * print revision number for now */712 sprintf(card->shortname, "ALS300+ (Rev. %d)", chip->revision);713 else714 sprintf(card->shortname, "ALS300 (Rev. %c)", 'A' +715 chip->revision - 1);716 sprintf(card->longname, "%s at 0x%lx irq %i",717 card->shortname, chip->port, chip->irq);718 719 err = snd_card_register(card);720 if (err < 0)721 goto error;722 723 pci_set_drvdata(pci, card);724 dev++;725 return 0;726 727 error:728 snd_card_free(card);729 return err;730}731 732static struct pci_driver als300_driver = {733 .name = KBUILD_MODNAME,734 .id_table = snd_als300_ids,735 .probe = snd_als300_probe,736 .driver = {737 .pm = &snd_als300_pm,738 },739};740 741module_pci_driver(als300_driver);742