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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * Driver for SiS7019 Audio Accelerator4 *5 * Copyright (C) 2004-2007, David Dillow6 * Written by David Dillow <dave@thedillows.org>7 * Inspired by the Trident 4D-WaveDX/NX driver.8 *9 * All rights reserved.10 */11 12#include <linux/init.h>13#include <linux/pci.h>14#include <linux/time.h>15#include <linux/slab.h>16#include <linux/module.h>17#include <linux/interrupt.h>18#include <linux/delay.h>19#include <sound/core.h>20#include <sound/ac97_codec.h>21#include <sound/initval.h>22#include "sis7019.h"23 24MODULE_AUTHOR("David Dillow <dave@thedillows.org>");25MODULE_DESCRIPTION("SiS7019");26MODULE_LICENSE("GPL");27 28static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */29static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */30static bool enable = 1;31static int codecs = 1;32 33module_param(index, int, 0444);34MODULE_PARM_DESC(index, "Index value for SiS7019 Audio Accelerator.");35module_param(id, charp, 0444);36MODULE_PARM_DESC(id, "ID string for SiS7019 Audio Accelerator.");37module_param(enable, bool, 0444);38MODULE_PARM_DESC(enable, "Enable SiS7019 Audio Accelerator.");39module_param(codecs, int, 0444);40MODULE_PARM_DESC(codecs, "Set bit to indicate that codec number is expected to be present (default 1)");41 42static const struct pci_device_id snd_sis7019_ids[] = {43 { PCI_DEVICE(PCI_VENDOR_ID_SI, 0x7019) },44 { 0, }45};46 47MODULE_DEVICE_TABLE(pci, snd_sis7019_ids);48 49/* There are three timing modes for the voices.50 *51 * For both playback and capture, when the buffer is one or two periods long,52 * we use the hardware's built-in Mid-Loop Interrupt and End-Loop Interrupt53 * to let us know when the periods have ended.54 *55 * When performing playback with more than two periods per buffer, we set56 * the "Stop Sample Offset" and tell the hardware to interrupt us when we57 * reach it. We then update the offset and continue on until we are58 * interrupted for the next period.59 *60 * Capture channels do not have a SSO, so we allocate a playback channel to61 * use as a timer for the capture periods. We use the SSO on the playback62 * channel to clock out virtual periods, and adjust the virtual period length63 * to maintain synchronization. This algorithm came from the Trident driver.64 *65 * FIXME: It'd be nice to make use of some of the synth features in the66 * hardware, but a woeful lack of documentation is a significant roadblock.67 */68struct voice {69 u16 flags;70#define VOICE_IN_USE 171#define VOICE_CAPTURE 272#define VOICE_SSO_TIMING 473#define VOICE_SYNC_TIMING 874 u16 sync_cso;75 u16 period_size;76 u16 buffer_size;77 u16 sync_period_size;78 u16 sync_buffer_size;79 u32 sso;80 u32 vperiod;81 struct snd_pcm_substream *substream;82 struct voice *timing;83 void __iomem *ctrl_base;84 void __iomem *wave_base;85 void __iomem *sync_base;86 int num;87};88 89/* We need four pages to store our wave parameters during a suspend. If90 * we're not doing power management, we still need to allocate a page91 * for the silence buffer.92 */93#define SIS_SUSPEND_PAGES 494 95struct sis7019 {96 unsigned long ioport;97 void __iomem *ioaddr;98 int irq;99 int codecs_present;100 101 struct pci_dev *pci;102 struct snd_pcm *pcm;103 struct snd_card *card;104 struct snd_ac97 *ac97[3];105 106 /* Protect against more than one thread hitting the AC97107 * registers (in a more polite manner than pounding the hardware108 * semaphore)109 */110 struct mutex ac97_mutex;111 112 /* voice_lock protects allocation/freeing of the voice descriptions113 */114 spinlock_t voice_lock;115 116 struct voice voices[64];117 struct voice capture_voice;118 119 /* Allocate pages to store the internal wave state during120 * suspends. When we're operating, this can be used as a silence121 * buffer for a timing channel.122 */123 void *suspend_state[SIS_SUSPEND_PAGES];124 125 int silence_users;126 dma_addr_t silence_dma_addr;127};128 129/* These values are also used by the module param 'codecs' to indicate130 * which codecs should be present.131 */132#define SIS_PRIMARY_CODEC_PRESENT 0x0001133#define SIS_SECONDARY_CODEC_PRESENT 0x0002134#define SIS_TERTIARY_CODEC_PRESENT 0x0004135 136/* The HW offset parameters (Loop End, Stop Sample, End Sample) have a137 * documented range of 8-0xfff8 samples. Given that they are 0-based,138 * that places our period/buffer range at 9-0xfff9 samples. That makes the139 * max buffer size 0xfff9 samples * 2 channels * 2 bytes per sample, and140 * max samples / min samples gives us the max periods in a buffer.141 *142 * We'll add a constraint upon open that limits the period and buffer sample143 * size to values that are legal for the hardware.144 */145static const struct snd_pcm_hardware sis_playback_hw_info = {146 .info = (SNDRV_PCM_INFO_MMAP |147 SNDRV_PCM_INFO_MMAP_VALID |148 SNDRV_PCM_INFO_INTERLEAVED |149 SNDRV_PCM_INFO_BLOCK_TRANSFER |150 SNDRV_PCM_INFO_SYNC_START |151 SNDRV_PCM_INFO_RESUME),152 .formats = (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |153 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE),154 .rates = SNDRV_PCM_RATE_8000_48000 | SNDRV_PCM_RATE_CONTINUOUS,155 .rate_min = 4000,156 .rate_max = 48000,157 .channels_min = 1,158 .channels_max = 2,159 .buffer_bytes_max = (0xfff9 * 4),160 .period_bytes_min = 9,161 .period_bytes_max = (0xfff9 * 4),162 .periods_min = 1,163 .periods_max = (0xfff9 / 9),164};165 166static const struct snd_pcm_hardware sis_capture_hw_info = {167 .info = (SNDRV_PCM_INFO_MMAP |168 SNDRV_PCM_INFO_MMAP_VALID |169 SNDRV_PCM_INFO_INTERLEAVED |170 SNDRV_PCM_INFO_BLOCK_TRANSFER |171 SNDRV_PCM_INFO_SYNC_START |172 SNDRV_PCM_INFO_RESUME),173 .formats = (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |174 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE),175 .rates = SNDRV_PCM_RATE_48000,176 .rate_min = 4000,177 .rate_max = 48000,178 .channels_min = 1,179 .channels_max = 2,180 .buffer_bytes_max = (0xfff9 * 4),181 .period_bytes_min = 9,182 .period_bytes_max = (0xfff9 * 4),183 .periods_min = 1,184 .periods_max = (0xfff9 / 9),185};186 187static void sis_update_sso(struct voice *voice, u16 period)188{189 void __iomem *base = voice->ctrl_base;190 191 voice->sso += period;192 if (voice->sso >= voice->buffer_size)193 voice->sso -= voice->buffer_size;194 195 /* Enforce the documented hardware minimum offset */196 if (voice->sso < 8)197 voice->sso = 8;198 199 /* The SSO is in the upper 16 bits of the register. */200 writew(voice->sso & 0xffff, base + SIS_PLAY_DMA_SSO_ESO + 2);201}202 203static void sis_update_voice(struct voice *voice)204{205 if (voice->flags & VOICE_SSO_TIMING) {206 sis_update_sso(voice, voice->period_size);207 } else if (voice->flags & VOICE_SYNC_TIMING) {208 int sync;209 210 /* If we've not hit the end of the virtual period, update211 * our records and keep going.212 */213 if (voice->vperiod > voice->period_size) {214 voice->vperiod -= voice->period_size;215 if (voice->vperiod < voice->period_size)216 sis_update_sso(voice, voice->vperiod);217 else218 sis_update_sso(voice, voice->period_size);219 return;220 }221 222 /* Calculate our relative offset between the target and223 * the actual CSO value. Since we're operating in a loop,224 * if the value is more than half way around, we can225 * consider ourselves wrapped.226 */227 sync = voice->sync_cso;228 sync -= readw(voice->sync_base + SIS_CAPTURE_DMA_FORMAT_CSO);229 if (sync > (voice->sync_buffer_size / 2))230 sync -= voice->sync_buffer_size;231 232 /* If sync is positive, then we interrupted too early, and233 * we'll need to come back in a few samples and try again.234 * There's a minimum wait, as it takes some time for the DMA235 * engine to startup, etc...236 */237 if (sync > 0) {238 if (sync < 16)239 sync = 16;240 sis_update_sso(voice, sync);241 return;242 }243 244 /* Ok, we interrupted right on time, or (hopefully) just245 * a bit late. We'll adjst our next waiting period based246 * on how close we got.247 *248 * We need to stay just behind the actual channel to ensure249 * it really is past a period when we get our interrupt --250 * otherwise we'll fall into the early code above and have251 * a minimum wait time, which makes us quite late here,252 * eating into the user's time to refresh the buffer, esp.253 * if using small periods.254 *255 * If we're less than 9 samples behind, we're on target.256 * Otherwise, shorten the next vperiod by the amount we've257 * been delayed.258 */259 if (sync > -9)260 voice->vperiod = voice->sync_period_size + 1;261 else262 voice->vperiod = voice->sync_period_size + sync + 10;263 264 if (voice->vperiod < voice->buffer_size) {265 sis_update_sso(voice, voice->vperiod);266 voice->vperiod = 0;267 } else268 sis_update_sso(voice, voice->period_size);269 270 sync = voice->sync_cso + voice->sync_period_size;271 if (sync >= voice->sync_buffer_size)272 sync -= voice->sync_buffer_size;273 voice->sync_cso = sync;274 }275 276 snd_pcm_period_elapsed(voice->substream);277}278 279static void sis_voice_irq(u32 status, struct voice *voice)280{281 int bit;282 283 while (status) {284 bit = __ffs(status);285 status >>= bit + 1;286 voice += bit;287 sis_update_voice(voice);288 voice++;289 }290}291 292static irqreturn_t sis_interrupt(int irq, void *dev)293{294 struct sis7019 *sis = dev;295 unsigned long io = sis->ioport;296 struct voice *voice;297 u32 intr, status;298 299 /* We only use the DMA interrupts, and we don't enable any other300 * source of interrupts. But, it is possible to see an interrupt301 * status that didn't actually interrupt us, so eliminate anything302 * we're not expecting to avoid falsely claiming an IRQ, and an303 * ensuing endless loop.304 */305 intr = inl(io + SIS_GISR);306 intr &= SIS_GISR_AUDIO_PLAY_DMA_IRQ_STATUS |307 SIS_GISR_AUDIO_RECORD_DMA_IRQ_STATUS;308 if (!intr)309 return IRQ_NONE;310 311 do {312 status = inl(io + SIS_PISR_A);313 if (status) {314 sis_voice_irq(status, sis->voices);315 outl(status, io + SIS_PISR_A);316 }317 318 status = inl(io + SIS_PISR_B);319 if (status) {320 sis_voice_irq(status, &sis->voices[32]);321 outl(status, io + SIS_PISR_B);322 }323 324 status = inl(io + SIS_RISR);325 if (status) {326 voice = &sis->capture_voice;327 if (!voice->timing)328 snd_pcm_period_elapsed(voice->substream);329 330 outl(status, io + SIS_RISR);331 }332 333 outl(intr, io + SIS_GISR);334 intr = inl(io + SIS_GISR);335 intr &= SIS_GISR_AUDIO_PLAY_DMA_IRQ_STATUS |336 SIS_GISR_AUDIO_RECORD_DMA_IRQ_STATUS;337 } while (intr);338 339 return IRQ_HANDLED;340}341 342static u32 sis_rate_to_delta(unsigned int rate)343{344 u32 delta;345 346 /* This was copied from the trident driver, but it seems its gotten347 * around a bit... nevertheless, it works well.348 *349 * We special case 44100 and 8000 since rounding with the equation350 * does not give us an accurate enough value. For 11025 and 22050351 * the equation gives us the best answer. All other frequencies will352 * also use the equation. JDW353 */354 if (rate == 44100)355 delta = 0xeb3;356 else if (rate == 8000)357 delta = 0x2ab;358 else if (rate == 48000)359 delta = 0x1000;360 else361 delta = DIV_ROUND_CLOSEST(rate << 12, 48000) & 0x0000ffff;362 return delta;363}364 365static void __sis_map_silence(struct sis7019 *sis)366{367 /* Helper function: must hold sis->voice_lock on entry */368 if (!sis->silence_users)369 sis->silence_dma_addr = dma_map_single(&sis->pci->dev,370 sis->suspend_state[0],371 4096, DMA_TO_DEVICE);372 sis->silence_users++;373}374 375static void __sis_unmap_silence(struct sis7019 *sis)376{377 /* Helper function: must hold sis->voice_lock on entry */378 sis->silence_users--;379 if (!sis->silence_users)380 dma_unmap_single(&sis->pci->dev, sis->silence_dma_addr, 4096,381 DMA_TO_DEVICE);382}383 384static void sis_free_voice(struct sis7019 *sis, struct voice *voice)385{386 unsigned long flags;387 388 spin_lock_irqsave(&sis->voice_lock, flags);389 if (voice->timing) {390 __sis_unmap_silence(sis);391 voice->timing->flags &= ~(VOICE_IN_USE | VOICE_SSO_TIMING |392 VOICE_SYNC_TIMING);393 voice->timing = NULL;394 }395 voice->flags &= ~(VOICE_IN_USE | VOICE_SSO_TIMING | VOICE_SYNC_TIMING);396 spin_unlock_irqrestore(&sis->voice_lock, flags);397}398 399static struct voice *__sis_alloc_playback_voice(struct sis7019 *sis)400{401 /* Must hold the voice_lock on entry */402 struct voice *voice;403 int i;404 405 for (i = 0; i < 64; i++) {406 voice = &sis->voices[i];407 if (voice->flags & VOICE_IN_USE)408 continue;409 voice->flags |= VOICE_IN_USE;410 goto found_one;411 }412 voice = NULL;413 414found_one:415 return voice;416}417 418static struct voice *sis_alloc_playback_voice(struct sis7019 *sis)419{420 struct voice *voice;421 unsigned long flags;422 423 spin_lock_irqsave(&sis->voice_lock, flags);424 voice = __sis_alloc_playback_voice(sis);425 spin_unlock_irqrestore(&sis->voice_lock, flags);426 427 return voice;428}429 430static int sis_alloc_timing_voice(struct snd_pcm_substream *substream,431 struct snd_pcm_hw_params *hw_params)432{433 struct sis7019 *sis = snd_pcm_substream_chip(substream);434 struct snd_pcm_runtime *runtime = substream->runtime;435 struct voice *voice = runtime->private_data;436 unsigned int period_size, buffer_size;437 unsigned long flags;438 int needed;439 440 /* If there are one or two periods per buffer, we don't need a441 * timing voice, as we can use the capture channel's interrupts442 * to clock out the periods.443 */444 period_size = params_period_size(hw_params);445 buffer_size = params_buffer_size(hw_params);446 needed = (period_size != buffer_size &&447 period_size != (buffer_size / 2));448 449 if (needed && !voice->timing) {450 spin_lock_irqsave(&sis->voice_lock, flags);451 voice->timing = __sis_alloc_playback_voice(sis);452 if (voice->timing)453 __sis_map_silence(sis);454 spin_unlock_irqrestore(&sis->voice_lock, flags);455 if (!voice->timing)456 return -ENOMEM;457 voice->timing->substream = substream;458 } else if (!needed && voice->timing) {459 sis_free_voice(sis, voice);460 voice->timing = NULL;461 }462 463 return 0;464}465 466static int sis_playback_open(struct snd_pcm_substream *substream)467{468 struct sis7019 *sis = snd_pcm_substream_chip(substream);469 struct snd_pcm_runtime *runtime = substream->runtime;470 struct voice *voice;471 472 voice = sis_alloc_playback_voice(sis);473 if (!voice)474 return -EAGAIN;475 476 voice->substream = substream;477 runtime->private_data = voice;478 runtime->hw = sis_playback_hw_info;479 snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,480 9, 0xfff9);481 snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE,482 9, 0xfff9);483 snd_pcm_set_sync(substream);484 return 0;485}486 487static int sis_substream_close(struct snd_pcm_substream *substream)488{489 struct sis7019 *sis = snd_pcm_substream_chip(substream);490 struct snd_pcm_runtime *runtime = substream->runtime;491 struct voice *voice = runtime->private_data;492 493 sis_free_voice(sis, voice);494 return 0;495}496 497static int sis_pcm_playback_prepare(struct snd_pcm_substream *substream)498{499 struct snd_pcm_runtime *runtime = substream->runtime;500 struct voice *voice = runtime->private_data;501 void __iomem *ctrl_base = voice->ctrl_base;502 void __iomem *wave_base = voice->wave_base;503 u32 format, dma_addr, control, sso_eso, delta, reg;504 u16 leo;505 506 /* We rely on the PCM core to ensure that the parameters for this507 * substream do not change on us while we're programming the HW.508 */509 format = 0;510 if (snd_pcm_format_width(runtime->format) == 8)511 format |= SIS_PLAY_DMA_FORMAT_8BIT;512 if (!snd_pcm_format_signed(runtime->format))513 format |= SIS_PLAY_DMA_FORMAT_UNSIGNED;514 if (runtime->channels == 1)515 format |= SIS_PLAY_DMA_FORMAT_MONO;516 517 /* The baseline setup is for a single period per buffer, and518 * we add bells and whistles as needed from there.519 */520 dma_addr = runtime->dma_addr;521 leo = runtime->buffer_size - 1;522 control = leo | SIS_PLAY_DMA_LOOP | SIS_PLAY_DMA_INTR_AT_LEO;523 sso_eso = leo;524 525 if (runtime->period_size == (runtime->buffer_size / 2)) {526 control |= SIS_PLAY_DMA_INTR_AT_MLP;527 } else if (runtime->period_size != runtime->buffer_size) {528 voice->flags |= VOICE_SSO_TIMING;529 voice->sso = runtime->period_size - 1;530 voice->period_size = runtime->period_size;531 voice->buffer_size = runtime->buffer_size;532 533 control &= ~SIS_PLAY_DMA_INTR_AT_LEO;534 control |= SIS_PLAY_DMA_INTR_AT_SSO;535 sso_eso |= (runtime->period_size - 1) << 16;536 }537 538 delta = sis_rate_to_delta(runtime->rate);539 540 /* Ok, we're ready to go, set up the channel.541 */542 writel(format, ctrl_base + SIS_PLAY_DMA_FORMAT_CSO);543 writel(dma_addr, ctrl_base + SIS_PLAY_DMA_BASE);544 writel(control, ctrl_base + SIS_PLAY_DMA_CONTROL);545 writel(sso_eso, ctrl_base + SIS_PLAY_DMA_SSO_ESO);546 547 for (reg = 0; reg < SIS_WAVE_SIZE; reg += 4)548 writel(0, wave_base + reg);549 550 writel(SIS_WAVE_GENERAL_WAVE_VOLUME, wave_base + SIS_WAVE_GENERAL);551 writel(delta << 16, wave_base + SIS_WAVE_GENERAL_ARTICULATION);552 writel(SIS_WAVE_CHANNEL_CONTROL_FIRST_SAMPLE |553 SIS_WAVE_CHANNEL_CONTROL_AMP_ENABLE |554 SIS_WAVE_CHANNEL_CONTROL_INTERPOLATE_ENABLE,555 wave_base + SIS_WAVE_CHANNEL_CONTROL);556 557 /* Force PCI writes to post. */558 readl(ctrl_base);559 560 return 0;561}562 563static int sis_pcm_trigger(struct snd_pcm_substream *substream, int cmd)564{565 struct sis7019 *sis = snd_pcm_substream_chip(substream);566 unsigned long io = sis->ioport;567 struct snd_pcm_substream *s;568 struct voice *voice;569 void *chip;570 int starting;571 u32 record = 0;572 u32 play[2] = { 0, 0 };573 574 /* No locks needed, as the PCM core will hold the locks on the575 * substreams, and the HW will only start/stop the indicated voices576 * without changing the state of the others.577 */578 switch (cmd) {579 case SNDRV_PCM_TRIGGER_START:580 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:581 case SNDRV_PCM_TRIGGER_RESUME:582 starting = 1;583 break;584 case SNDRV_PCM_TRIGGER_STOP:585 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:586 case SNDRV_PCM_TRIGGER_SUSPEND:587 starting = 0;588 break;589 default:590 return -EINVAL;591 }592 593 snd_pcm_group_for_each_entry(s, substream) {594 /* Make sure it is for us... */595 chip = snd_pcm_substream_chip(s);596 if (chip != sis)597 continue;598 599 voice = s->runtime->private_data;600 if (voice->flags & VOICE_CAPTURE) {601 record |= 1 << voice->num;602 voice = voice->timing;603 }604 605 /* voice could be NULL if this a recording stream, and it606 * doesn't have an external timing channel.607 */608 if (voice)609 play[voice->num / 32] |= 1 << (voice->num & 0x1f);610 611 snd_pcm_trigger_done(s, substream);612 }613 614 if (starting) {615 if (record)616 outl(record, io + SIS_RECORD_START_REG);617 if (play[0])618 outl(play[0], io + SIS_PLAY_START_A_REG);619 if (play[1])620 outl(play[1], io + SIS_PLAY_START_B_REG);621 } else {622 if (record)623 outl(record, io + SIS_RECORD_STOP_REG);624 if (play[0])625 outl(play[0], io + SIS_PLAY_STOP_A_REG);626 if (play[1])627 outl(play[1], io + SIS_PLAY_STOP_B_REG);628 }629 return 0;630}631 632static snd_pcm_uframes_t sis_pcm_pointer(struct snd_pcm_substream *substream)633{634 struct snd_pcm_runtime *runtime = substream->runtime;635 struct voice *voice = runtime->private_data;636 u32 cso;637 638 cso = readl(voice->ctrl_base + SIS_PLAY_DMA_FORMAT_CSO);639 cso &= 0xffff;640 return cso;641}642 643static int sis_capture_open(struct snd_pcm_substream *substream)644{645 struct sis7019 *sis = snd_pcm_substream_chip(substream);646 struct snd_pcm_runtime *runtime = substream->runtime;647 struct voice *voice = &sis->capture_voice;648 unsigned long flags;649 650 /* FIXME: The driver only supports recording from one channel651 * at the moment, but it could support more.652 */653 spin_lock_irqsave(&sis->voice_lock, flags);654 if (voice->flags & VOICE_IN_USE)655 voice = NULL;656 else657 voice->flags |= VOICE_IN_USE;658 spin_unlock_irqrestore(&sis->voice_lock, flags);659 660 if (!voice)661 return -EAGAIN;662 663 voice->substream = substream;664 runtime->private_data = voice;665 runtime->hw = sis_capture_hw_info;666 runtime->hw.rates = sis->ac97[0]->rates[AC97_RATES_ADC];667 snd_pcm_limit_hw_rates(runtime);668 snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,669 9, 0xfff9);670 snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE,671 9, 0xfff9);672 snd_pcm_set_sync(substream);673 return 0;674}675 676static int sis_capture_hw_params(struct snd_pcm_substream *substream,677 struct snd_pcm_hw_params *hw_params)678{679 struct sis7019 *sis = snd_pcm_substream_chip(substream);680 int rc;681 682 rc = snd_ac97_set_rate(sis->ac97[0], AC97_PCM_LR_ADC_RATE,683 params_rate(hw_params));684 if (rc)685 goto out;686 687 rc = sis_alloc_timing_voice(substream, hw_params);688 689out:690 return rc;691}692 693static void sis_prepare_timing_voice(struct voice *voice,694 struct snd_pcm_substream *substream)695{696 struct sis7019 *sis = snd_pcm_substream_chip(substream);697 struct snd_pcm_runtime *runtime = substream->runtime;698 struct voice *timing = voice->timing;699 void __iomem *play_base = timing->ctrl_base;700 void __iomem *wave_base = timing->wave_base;701 u16 buffer_size, period_size;702 u32 format, control, sso_eso, delta;703 u32 vperiod, sso, reg;704 705 /* Set our initial buffer and period as large as we can given a706 * single page of silence.707 */708 buffer_size = 4096 / runtime->channels;709 buffer_size /= snd_pcm_format_size(runtime->format, 1);710 period_size = buffer_size;711 712 /* Initially, we want to interrupt just a bit behind the end of713 * the period we're clocking out. 12 samples seems to give a good714 * delay.715 *716 * We want to spread our interrupts throughout the virtual period,717 * so that we don't end up with two interrupts back to back at the718 * end -- this helps minimize the effects of any jitter. Adjust our719 * clocking period size so that the last period is at least a fourth720 * of a full period.721 *722 * This is all moot if we don't need to use virtual periods.723 */724 vperiod = runtime->period_size + 12;725 if (vperiod > period_size) {726 u16 tail = vperiod % period_size;727 u16 quarter_period = period_size / 4;728 729 if (tail && tail < quarter_period) {730 u16 loops = vperiod / period_size;731 732 tail = quarter_period - tail;733 tail += loops - 1;734 tail /= loops;735 period_size -= tail;736 }737 738 sso = period_size - 1;739 } else {740 /* The initial period will fit inside the buffer, so we741 * don't need to use virtual periods -- disable them.742 */743 period_size = runtime->period_size;744 sso = vperiod - 1;745 vperiod = 0;746 }747 748 /* The interrupt handler implements the timing synchronization, so749 * setup its state.750 */751 timing->flags |= VOICE_SYNC_TIMING;752 timing->sync_base = voice->ctrl_base;753 timing->sync_cso = runtime->period_size;754 timing->sync_period_size = runtime->period_size;755 timing->sync_buffer_size = runtime->buffer_size;756 timing->period_size = period_size;757 timing->buffer_size = buffer_size;758 timing->sso = sso;759 timing->vperiod = vperiod;760 761 /* Using unsigned samples with the all-zero silence buffer762 * forces the output to the lower rail, killing playback.763 * So ignore unsigned vs signed -- it doesn't change the timing.764 */765 format = 0;766 if (snd_pcm_format_width(runtime->format) == 8)767 format = SIS_CAPTURE_DMA_FORMAT_8BIT;768 if (runtime->channels == 1)769 format |= SIS_CAPTURE_DMA_FORMAT_MONO;770 771 control = timing->buffer_size - 1;772 control |= SIS_PLAY_DMA_LOOP | SIS_PLAY_DMA_INTR_AT_SSO;773 sso_eso = timing->buffer_size - 1;774 sso_eso |= timing->sso << 16;775 776 delta = sis_rate_to_delta(runtime->rate);777 778 /* We've done the math, now configure the channel.779 */780 writel(format, play_base + SIS_PLAY_DMA_FORMAT_CSO);781 writel(sis->silence_dma_addr, play_base + SIS_PLAY_DMA_BASE);782 writel(control, play_base + SIS_PLAY_DMA_CONTROL);783 writel(sso_eso, play_base + SIS_PLAY_DMA_SSO_ESO);784 785 for (reg = 0; reg < SIS_WAVE_SIZE; reg += 4)786 writel(0, wave_base + reg);787 788 writel(SIS_WAVE_GENERAL_WAVE_VOLUME, wave_base + SIS_WAVE_GENERAL);789 writel(delta << 16, wave_base + SIS_WAVE_GENERAL_ARTICULATION);790 writel(SIS_WAVE_CHANNEL_CONTROL_FIRST_SAMPLE |791 SIS_WAVE_CHANNEL_CONTROL_AMP_ENABLE |792 SIS_WAVE_CHANNEL_CONTROL_INTERPOLATE_ENABLE,793 wave_base + SIS_WAVE_CHANNEL_CONTROL);794}795 796static int sis_pcm_capture_prepare(struct snd_pcm_substream *substream)797{798 struct snd_pcm_runtime *runtime = substream->runtime;799 struct voice *voice = runtime->private_data;800 void __iomem *rec_base = voice->ctrl_base;801 u32 format, dma_addr, control;802 u16 leo;803 804 /* We rely on the PCM core to ensure that the parameters for this805 * substream do not change on us while we're programming the HW.806 */807 format = 0;808 if (snd_pcm_format_width(runtime->format) == 8)809 format = SIS_CAPTURE_DMA_FORMAT_8BIT;810 if (!snd_pcm_format_signed(runtime->format))811 format |= SIS_CAPTURE_DMA_FORMAT_UNSIGNED;812 if (runtime->channels == 1)813 format |= SIS_CAPTURE_DMA_FORMAT_MONO;814 815 dma_addr = runtime->dma_addr;816 leo = runtime->buffer_size - 1;817 control = leo | SIS_CAPTURE_DMA_LOOP;818 819 /* If we've got more than two periods per buffer, then we have820 * use a timing voice to clock out the periods. Otherwise, we can821 * use the capture channel's interrupts.822 */823 if (voice->timing) {824 sis_prepare_timing_voice(voice, substream);825 } else {826 control |= SIS_CAPTURE_DMA_INTR_AT_LEO;827 if (runtime->period_size != runtime->buffer_size)828 control |= SIS_CAPTURE_DMA_INTR_AT_MLP;829 }830 831 writel(format, rec_base + SIS_CAPTURE_DMA_FORMAT_CSO);832 writel(dma_addr, rec_base + SIS_CAPTURE_DMA_BASE);833 writel(control, rec_base + SIS_CAPTURE_DMA_CONTROL);834 835 /* Force the writes to post. */836 readl(rec_base);837 838 return 0;839}840 841static const struct snd_pcm_ops sis_playback_ops = {842 .open = sis_playback_open,843 .close = sis_substream_close,844 .prepare = sis_pcm_playback_prepare,845 .trigger = sis_pcm_trigger,846 .pointer = sis_pcm_pointer,847};848 849static const struct snd_pcm_ops sis_capture_ops = {850 .open = sis_capture_open,851 .close = sis_substream_close,852 .hw_params = sis_capture_hw_params,853 .prepare = sis_pcm_capture_prepare,854 .trigger = sis_pcm_trigger,855 .pointer = sis_pcm_pointer,856};857 858static int sis_pcm_create(struct sis7019 *sis)859{860 struct snd_pcm *pcm;861 int rc;862 863 /* We have 64 voices, and the driver currently records from864 * only one channel, though that could change in the future.865 */866 rc = snd_pcm_new(sis->card, "SiS7019", 0, 64, 1, &pcm);867 if (rc)868 return rc;869 870 pcm->private_data = sis;871 strcpy(pcm->name, "SiS7019");872 sis->pcm = pcm;873 874 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &sis_playback_ops);875 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &sis_capture_ops);876 877 /* Try to preallocate some memory, but it's not the end of the878 * world if this fails.879 */880 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,881 &sis->pci->dev, 64*1024, 128*1024);882 883 return 0;884}885 886static unsigned short sis_ac97_rw(struct sis7019 *sis, int codec, u32 cmd)887{888 unsigned long io = sis->ioport;889 unsigned short val = 0xffff;890 u16 status;891 u16 rdy;892 int count;893 static const u16 codec_ready[3] = {894 SIS_AC97_STATUS_CODEC_READY,895 SIS_AC97_STATUS_CODEC2_READY,896 SIS_AC97_STATUS_CODEC3_READY,897 };898 899 rdy = codec_ready[codec];900 901 902 /* Get the AC97 semaphore -- software first, so we don't spin903 * pounding out IO reads on the hardware semaphore...904 */905 mutex_lock(&sis->ac97_mutex);906 907 count = 0xffff;908 while ((inw(io + SIS_AC97_SEMA) & SIS_AC97_SEMA_BUSY) && --count)909 udelay(1);910 911 if (!count)912 goto timeout;913 914 /* ... and wait for any outstanding commands to complete ...915 */916 count = 0xffff;917 do {918 status = inw(io + SIS_AC97_STATUS);919 if ((status & rdy) && !(status & SIS_AC97_STATUS_BUSY))920 break;921 922 udelay(1);923 } while (--count);924 925 if (!count)926 goto timeout_sema;927 928 /* ... before sending our command and waiting for it to finish ...929 */930 outl(cmd, io + SIS_AC97_CMD);931 udelay(10);932 933 count = 0xffff;934 while ((inw(io + SIS_AC97_STATUS) & SIS_AC97_STATUS_BUSY) && --count)935 udelay(1);936 937 /* ... and reading the results (if any).938 */939 val = inl(io + SIS_AC97_CMD) >> 16;940 941timeout_sema:942 outl(SIS_AC97_SEMA_RELEASE, io + SIS_AC97_SEMA);943timeout:944 mutex_unlock(&sis->ac97_mutex);945 946 if (!count) {947 dev_err(&sis->pci->dev, "ac97 codec %d timeout cmd 0x%08x\n",948 codec, cmd);949 }950 951 return val;952}953 954static void sis_ac97_write(struct snd_ac97 *ac97, unsigned short reg,955 unsigned short val)956{957 static const u32 cmd[3] = {958 SIS_AC97_CMD_CODEC_WRITE,959 SIS_AC97_CMD_CODEC2_WRITE,960 SIS_AC97_CMD_CODEC3_WRITE,961 };962 sis_ac97_rw(ac97->private_data, ac97->num,963 (val << 16) | (reg << 8) | cmd[ac97->num]);964}965 966static unsigned short sis_ac97_read(struct snd_ac97 *ac97, unsigned short reg)967{968 static const u32 cmd[3] = {969 SIS_AC97_CMD_CODEC_READ,970 SIS_AC97_CMD_CODEC2_READ,971 SIS_AC97_CMD_CODEC3_READ,972 };973 return sis_ac97_rw(ac97->private_data, ac97->num,974 (reg << 8) | cmd[ac97->num]);975}976 977static int sis_mixer_create(struct sis7019 *sis)978{979 struct snd_ac97_bus *bus;980 struct snd_ac97_template ac97;981 static const struct snd_ac97_bus_ops ops = {982 .write = sis_ac97_write,983 .read = sis_ac97_read,984 };985 int rc;986 987 memset(&ac97, 0, sizeof(ac97));988 ac97.private_data = sis;989 990 rc = snd_ac97_bus(sis->card, 0, &ops, NULL, &bus);991 if (!rc && sis->codecs_present & SIS_PRIMARY_CODEC_PRESENT)992 rc = snd_ac97_mixer(bus, &ac97, &sis->ac97[0]);993 ac97.num = 1;994 if (!rc && (sis->codecs_present & SIS_SECONDARY_CODEC_PRESENT))995 rc = snd_ac97_mixer(bus, &ac97, &sis->ac97[1]);996 ac97.num = 2;997 if (!rc && (sis->codecs_present & SIS_TERTIARY_CODEC_PRESENT))998 rc = snd_ac97_mixer(bus, &ac97, &sis->ac97[2]);999 1000 /* If we return an error here, then snd_card_free() should1001 * free up any ac97 codecs that got created, as well as the bus.1002 */1003 return rc;1004}1005 1006static void sis_chip_free(struct snd_card *card)1007{1008 struct sis7019 *sis = card->private_data;1009 1010 /* Reset the chip, and disable all interrputs.1011 */1012 outl(SIS_GCR_SOFTWARE_RESET, sis->ioport + SIS_GCR);1013 udelay(25);1014 outl(0, sis->ioport + SIS_GCR);1015 outl(0, sis->ioport + SIS_GIER);1016 1017 /* Now, free everything we allocated.1018 */1019 if (sis->irq >= 0)1020 free_irq(sis->irq, sis);1021}1022 1023static int sis_chip_init(struct sis7019 *sis)1024{1025 unsigned long io = sis->ioport;1026 void __iomem *ioaddr = sis->ioaddr;1027 unsigned long timeout;1028 u16 status;1029 int count;1030 int i;1031 1032 /* Reset the audio controller1033 */1034 outl(SIS_GCR_SOFTWARE_RESET, io + SIS_GCR);1035 udelay(25);1036 outl(0, io + SIS_GCR);1037 1038 /* Get the AC-link semaphore, and reset the codecs1039 */1040 count = 0xffff;1041 while ((inw(io + SIS_AC97_SEMA) & SIS_AC97_SEMA_BUSY) && --count)1042 udelay(1);1043 1044 if (!count)1045 return -EIO;1046 1047 outl(SIS_AC97_CMD_CODEC_COLD_RESET, io + SIS_AC97_CMD);1048 udelay(250);1049 1050 count = 0xffff;1051 while ((inw(io + SIS_AC97_STATUS) & SIS_AC97_STATUS_BUSY) && --count)1052 udelay(1);1053 1054 /* Command complete, we can let go of the semaphore now.1055 */1056 outl(SIS_AC97_SEMA_RELEASE, io + SIS_AC97_SEMA);1057 if (!count)1058 return -EIO;1059 1060 /* Now that we've finished the reset, find out what's attached.1061 * There are some codec/board combinations that take an extremely1062 * long time to come up. 350+ ms has been observed in the field,1063 * so we'll give them up to 500ms.1064 */1065 sis->codecs_present = 0;1066 timeout = msecs_to_jiffies(500) + jiffies;1067 while (time_before_eq(jiffies, timeout)) {1068 status = inl(io + SIS_AC97_STATUS);1069 if (status & SIS_AC97_STATUS_CODEC_READY)1070 sis->codecs_present |= SIS_PRIMARY_CODEC_PRESENT;1071 if (status & SIS_AC97_STATUS_CODEC2_READY)1072 sis->codecs_present |= SIS_SECONDARY_CODEC_PRESENT;1073 if (status & SIS_AC97_STATUS_CODEC3_READY)1074 sis->codecs_present |= SIS_TERTIARY_CODEC_PRESENT;1075 1076 if (sis->codecs_present == codecs)1077 break;1078 1079 msleep(1);1080 }1081 1082 /* All done, check for errors.1083 */1084 if (!sis->codecs_present) {1085 dev_err(&sis->pci->dev, "could not find any codecs\n");1086 return -EIO;1087 }1088 1089 if (sis->codecs_present != codecs) {1090 dev_warn(&sis->pci->dev, "missing codecs, found %0x, expected %0x\n",1091 sis->codecs_present, codecs);1092 }1093 1094 /* Let the hardware know that the audio driver is alive,1095 * and enable PCM slots on the AC-link for L/R playback (3 & 4) and1096 * record channels. We're going to want to use Variable Rate Audio1097 * for recording, to avoid needlessly resampling from 48kHZ.1098 */1099 outl(SIS_AC97_CONF_AUDIO_ALIVE, io + SIS_AC97_CONF);1100 outl(SIS_AC97_CONF_AUDIO_ALIVE | SIS_AC97_CONF_PCM_LR_ENABLE |1101 SIS_AC97_CONF_PCM_CAP_MIC_ENABLE |1102 SIS_AC97_CONF_PCM_CAP_LR_ENABLE |1103 SIS_AC97_CONF_CODEC_VRA_ENABLE, io + SIS_AC97_CONF);1104 1105 /* All AC97 PCM slots should be sourced from sub-mixer 0.1106 */1107 outl(0, io + SIS_AC97_PSR);1108 1109 /* There is only one valid DMA setup for a PCI environment.1110 */1111 outl(SIS_DMA_CSR_PCI_SETTINGS, io + SIS_DMA_CSR);1112 1113 /* Reset the synchronization groups for all of the channels1114 * to be asynchronous. If we start doing SPDIF or 5.1 sound, etc.1115 * we'll need to change how we handle these. Until then, we just1116 * assign sub-mixer 0 to all playback channels, and avoid any1117 * attenuation on the audio.1118 */1119 outl(0, io + SIS_PLAY_SYNC_GROUP_A);1120 outl(0, io + SIS_PLAY_SYNC_GROUP_B);1121 outl(0, io + SIS_PLAY_SYNC_GROUP_C);1122 outl(0, io + SIS_PLAY_SYNC_GROUP_D);1123 outl(0, io + SIS_MIXER_SYNC_GROUP);1124 1125 for (i = 0; i < 64; i++) {1126 writel(i, SIS_MIXER_START_ADDR(ioaddr, i));1127 writel(SIS_MIXER_RIGHT_NO_ATTEN | SIS_MIXER_LEFT_NO_ATTEN |1128 SIS_MIXER_DEST_0, SIS_MIXER_ADDR(ioaddr, i));1129 }1130 1131 /* Don't attenuate any audio set for the wave amplifier.1132 *1133 * FIXME: Maximum attenuation is set for the music amp, which will1134 * need to change if we start using the synth engine.1135 */1136 outl(0xffff0000, io + SIS_WEVCR);1137 1138 /* Ensure that the wave engine is in normal operating mode.1139 */1140 outl(0, io + SIS_WECCR);1141 1142 /* Go ahead and enable the DMA interrupts. They won't go live1143 * until we start a channel.1144 */1145 outl(SIS_GIER_AUDIO_PLAY_DMA_IRQ_ENABLE |1146 SIS_GIER_AUDIO_RECORD_DMA_IRQ_ENABLE, io + SIS_GIER);1147 1148 return 0;1149}1150 1151static int sis_suspend(struct device *dev)1152{1153 struct snd_card *card = dev_get_drvdata(dev);1154 struct sis7019 *sis = card->private_data;1155 void __iomem *ioaddr = sis->ioaddr;1156 int i;1157 1158 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);1159 if (sis->codecs_present & SIS_PRIMARY_CODEC_PRESENT)1160 snd_ac97_suspend(sis->ac97[0]);1161 if (sis->codecs_present & SIS_SECONDARY_CODEC_PRESENT)1162 snd_ac97_suspend(sis->ac97[1]);1163 if (sis->codecs_present & SIS_TERTIARY_CODEC_PRESENT)1164 snd_ac97_suspend(sis->ac97[2]);1165 1166 /* snd_pcm_suspend_all() stopped all channels, so we're quiescent.1167 */1168 if (sis->irq >= 0) {1169 free_irq(sis->irq, sis);1170 sis->irq = -1;1171 }1172 1173 /* Save the internal state away1174 */1175 for (i = 0; i < 4; i++) {1176 memcpy_fromio(sis->suspend_state[i], ioaddr, 4096);1177 ioaddr += 4096;1178 }1179 1180 return 0;1181}1182 1183static int sis_resume(struct device *dev)1184{1185 struct pci_dev *pci = to_pci_dev(dev);1186 struct snd_card *card = dev_get_drvdata(dev);1187 struct sis7019 *sis = card->private_data;1188 void __iomem *ioaddr = sis->ioaddr;1189 int i;1190 1191 if (sis_chip_init(sis)) {1192 dev_err(&pci->dev, "unable to re-init controller\n");1193 goto error;1194 }1195 1196 if (request_irq(pci->irq, sis_interrupt, IRQF_SHARED,1197 KBUILD_MODNAME, sis)) {1198 dev_err(&pci->dev, "unable to regain IRQ %d\n", pci->irq);1199 goto error;1200 }1201 1202 /* Restore saved state, then clear out the page we use for the1203 * silence buffer.1204 */1205 for (i = 0; i < 4; i++) {1206 memcpy_toio(ioaddr, sis->suspend_state[i], 4096);1207 ioaddr += 4096;1208 }1209 1210 memset(sis->suspend_state[0], 0, 4096);1211 1212 sis->irq = pci->irq;1213 1214 if (sis->codecs_present & SIS_PRIMARY_CODEC_PRESENT)1215 snd_ac97_resume(sis->ac97[0]);1216 if (sis->codecs_present & SIS_SECONDARY_CODEC_PRESENT)1217 snd_ac97_resume(sis->ac97[1]);1218 if (sis->codecs_present & SIS_TERTIARY_CODEC_PRESENT)1219 snd_ac97_resume(sis->ac97[2]);1220 1221 snd_power_change_state(card, SNDRV_CTL_POWER_D0);1222 return 0;1223 1224error:1225 snd_card_disconnect(card);1226 return -EIO;1227}1228 1229static DEFINE_SIMPLE_DEV_PM_OPS(sis_pm, sis_suspend, sis_resume);1230 1231static int sis_alloc_suspend(struct sis7019 *sis)1232{1233 int i;1234 1235 /* We need 16K to store the internal wave engine state during a1236 * suspend, but we don't need it to be contiguous, so play nice1237 * with the memory system. We'll also use this area for a silence1238 * buffer.1239 */1240 for (i = 0; i < SIS_SUSPEND_PAGES; i++) {1241 sis->suspend_state[i] = devm_kmalloc(&sis->pci->dev, 4096,1242 GFP_KERNEL);1243 if (!sis->suspend_state[i])1244 return -ENOMEM;1245 }1246 memset(sis->suspend_state[0], 0, 4096);1247 1248 return 0;1249}1250 1251static int sis_chip_create(struct snd_card *card,1252 struct pci_dev *pci)1253{1254 struct sis7019 *sis = card->private_data;1255 struct voice *voice;1256 int rc;1257 int i;1258 1259 rc = pcim_enable_device(pci);1260 if (rc)1261 return rc;1262 1263 rc = dma_set_mask(&pci->dev, DMA_BIT_MASK(30));1264 if (rc < 0) {1265 dev_err(&pci->dev, "architecture does not support 30-bit PCI busmaster DMA");1266 return -ENXIO;1267 }1268 1269 mutex_init(&sis->ac97_mutex);1270 spin_lock_init(&sis->voice_lock);1271 sis->card = card;1272 sis->pci = pci;1273 sis->irq = -1;1274 sis->ioport = pci_resource_start(pci, 0);1275 1276 rc = pci_request_regions(pci, "SiS7019");1277 if (rc) {1278 dev_err(&pci->dev, "unable request regions\n");1279 return rc;1280 }1281 1282 sis->ioaddr = devm_ioremap(&pci->dev, pci_resource_start(pci, 1), 0x4000);1283 if (!sis->ioaddr) {1284 dev_err(&pci->dev, "unable to remap MMIO, aborting\n");1285 return -EIO;1286 }1287 1288 rc = sis_alloc_suspend(sis);1289 if (rc < 0) {1290 dev_err(&pci->dev, "unable to allocate state storage\n");1291 return rc;1292 }1293 1294 rc = sis_chip_init(sis);1295 if (rc)1296 return rc;1297 card->private_free = sis_chip_free;1298 1299 rc = request_irq(pci->irq, sis_interrupt, IRQF_SHARED, KBUILD_MODNAME,1300 sis);1301 if (rc) {1302 dev_err(&pci->dev, "unable to allocate irq %d\n", sis->irq);1303 return rc;1304 }1305 1306 sis->irq = pci->irq;1307 card->sync_irq = sis->irq;1308 pci_set_master(pci);1309 1310 for (i = 0; i < 64; i++) {1311 voice = &sis->voices[i];1312 voice->num = i;1313 voice->ctrl_base = SIS_PLAY_DMA_ADDR(sis->ioaddr, i);1314 voice->wave_base = SIS_WAVE_ADDR(sis->ioaddr, i);1315 }1316 1317 voice = &sis->capture_voice;1318 voice->flags = VOICE_CAPTURE;1319 voice->num = SIS_CAPTURE_CHAN_AC97_PCM_IN;1320 voice->ctrl_base = SIS_CAPTURE_DMA_ADDR(sis->ioaddr, voice->num);1321 1322 return 0;1323}1324 1325static int __snd_sis7019_probe(struct pci_dev *pci,1326 const struct pci_device_id *pci_id)1327{1328 struct snd_card *card;1329 struct sis7019 *sis;1330 int rc;1331 1332 if (!enable)1333 return -ENOENT;1334 1335 /* The user can specify which codecs should be present so that we1336 * can wait for them to show up if they are slow to recover from1337 * the AC97 cold reset. We default to a single codec, the primary.1338 *1339 * We assume that SIS_PRIMARY_*_PRESENT matches bits 0-2.1340 */1341 codecs &= SIS_PRIMARY_CODEC_PRESENT | SIS_SECONDARY_CODEC_PRESENT |1342 SIS_TERTIARY_CODEC_PRESENT;1343 if (!codecs)1344 codecs = SIS_PRIMARY_CODEC_PRESENT;1345 1346 rc = snd_devm_card_new(&pci->dev, index, id, THIS_MODULE,1347 sizeof(*sis), &card);1348 if (rc < 0)1349 return rc;1350 1351 strcpy(card->driver, "SiS7019");1352 strcpy(card->shortname, "SiS7019");1353 rc = sis_chip_create(card, pci);1354 if (rc)1355 return rc;1356 1357 sis = card->private_data;1358 1359 rc = sis_mixer_create(sis);1360 if (rc)1361 return rc;1362 1363 rc = sis_pcm_create(sis);1364 if (rc)1365 return rc;1366 1367 snprintf(card->longname, sizeof(card->longname),1368 "%s Audio Accelerator with %s at 0x%lx, irq %d",1369 card->shortname, snd_ac97_get_short_name(sis->ac97[0]),1370 sis->ioport, sis->irq);1371 1372 rc = snd_card_register(card);1373 if (rc)1374 return rc;1375 1376 pci_set_drvdata(pci, card);1377 return 0;1378}1379 1380static int snd_sis7019_probe(struct pci_dev *pci,1381 const struct pci_device_id *pci_id)1382{1383 return snd_card_free_on_error(&pci->dev, __snd_sis7019_probe(pci, pci_id));1384}1385 1386static struct pci_driver sis7019_driver = {1387 .name = KBUILD_MODNAME,1388 .id_table = snd_sis7019_ids,1389 .probe = snd_sis7019_probe,1390 .driver = {1391 .pm = &sis_pm,1392 },1393};1394 1395module_pci_driver(sis7019_driver);1396