2 * card-als4000.c - driver for Avance Logic ALS4000 based soundcards.
3 * Copyright (C) 2000 by Bart Hartgers <bart@etpmod.phys.tue.nl>,
4 * Jaroslav Kysela <perex@suse.cz>
5 * Copyright (C) 2002 by Andreas Mohr <hw7oshyuv3001@sneakemail.com>
7 * Framework borrowed from Massimo Piccioni's card-als100.c.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 * Since Avance does not provide any meaningful documentation, and I
27 * bought an ALS4000 based soundcard, I was forced to base this driver
28 * on reverse engineering.
30 * Note: this is no longer true. Pretty verbose chip docu (ALS4000a.PDF)
31 * can be found on the ALSA web site.
33 * The ALS4000 seems to be the PCI-cousin of the ALS100. It contains an
34 * ALS100-like SB DSP/mixer, an OPL3 synth, a MPU401 and a gameport
35 * interface. These subsystems can be mapped into ISA io-port space,
36 * using the PCI-interface. In addition, the PCI-bit provides DMA and IRQ
37 * services to the subsystems.
39 * While ALS4000 is very similar to a SoundBlaster, the differences in
40 * DMA and capturing require more changes to the SoundBlaster than
41 * desirable, so I made this separate driver.
43 * The ALS4000 can do real full duplex playback/capture.
49 * Enable/disable 3D sound:
51 * - change bit 6 (0x40) of port 0x15
56 * 0x3e (mode 3), 0x3c (mode 2), 0x3a (mode 1), 0x38 (mode 0)
59 * - value -> some port 0x0c0d
62 * - Proper shared IRQ handling?
63 * - power management? (card can do voice wakeup according to datasheet!!)
66 #include <sound/driver.h>
68 #include <linux/init.h>
69 #include <linux/pci.h>
70 #include <linux/slab.h>
71 #include <linux/gameport.h>
72 #include <linux/moduleparam.h>
73 #include <sound/core.h>
74 #include <sound/pcm.h>
75 #include <sound/rawmidi.h>
76 #include <sound/mpu401.h>
77 #include <sound/opl3.h>
79 #include <sound/initval.h>
81 MODULE_AUTHOR("Bart Hartgers <bart@etpmod.phys.tue.nl>");
82 MODULE_DESCRIPTION("Avance Logic ALS4000");
83 MODULE_LICENSE("GPL");
84 MODULE_SUPPORTED_DEVICE("{{Avance Logic,ALS4000}}");
86 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
87 #define SUPPORT_JOYSTICK 1
90 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
91 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
92 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
93 #ifdef SUPPORT_JOYSTICK
94 static int joystick_port[SNDRV_CARDS];
97 module_param_array(index, int, NULL, 0444);
98 MODULE_PARM_DESC(index, "Index value for ALS4000 soundcard.");
99 module_param_array(id, charp, NULL, 0444);
100 MODULE_PARM_DESC(id, "ID string for ALS4000 soundcard.");
101 module_param_array(enable, bool, NULL, 0444);
102 MODULE_PARM_DESC(enable, "Enable ALS4000 soundcard.");
103 #ifdef SUPPORT_JOYSTICK
104 module_param_array(joystick_port, int, NULL, 0444);
105 MODULE_PARM_DESC(joystick_port, "Joystick port address for ALS4000 soundcard. (0 = disabled)");
109 /* most frequent access first */
112 #ifdef SUPPORT_JOYSTICK
113 struct gameport *gameport;
115 } snd_card_als4000_t;
117 static struct pci_device_id snd_als4000_ids[] = {
118 { 0x4005, 0x4000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* ALS4000 */
122 MODULE_DEVICE_TABLE(pci, snd_als4000_ids);
124 static inline void snd_als4000_gcr_write_addr(unsigned long port, u32 reg, u32 val)
126 outb(reg, port+0x0c);
127 outl(val, port+0x08);
130 static inline void snd_als4000_gcr_write(sb_t *sb, u32 reg, u32 val)
132 snd_als4000_gcr_write_addr(sb->alt_port, reg, val);
135 static inline u32 snd_als4000_gcr_read_addr(unsigned long port, u32 reg)
137 outb(reg, port+0x0c);
138 return inl(port+0x08);
141 static inline u32 snd_als4000_gcr_read(sb_t *sb, u32 reg)
143 return snd_als4000_gcr_read_addr(sb->alt_port, reg);
146 static void snd_als4000_set_rate(sb_t *chip, unsigned int rate)
148 if (!(chip->mode & SB_RATE_LOCK)) {
149 snd_sbdsp_command(chip, SB_DSP_SAMPLE_RATE_OUT);
150 snd_sbdsp_command(chip, rate>>8);
151 snd_sbdsp_command(chip, rate);
155 static inline void snd_als4000_set_capture_dma(sb_t *chip, dma_addr_t addr, unsigned size)
157 snd_als4000_gcr_write(chip, 0xa2, addr);
158 snd_als4000_gcr_write(chip, 0xa3, (size-1));
161 static inline void snd_als4000_set_playback_dma(sb_t *chip, dma_addr_t addr, unsigned size)
163 snd_als4000_gcr_write(chip, 0x91, addr);
164 snd_als4000_gcr_write(chip, 0x92, (size-1)|0x180000);
167 #define ALS4000_FORMAT_SIGNED (1<<0)
168 #define ALS4000_FORMAT_16BIT (1<<1)
169 #define ALS4000_FORMAT_STEREO (1<<2)
171 static int snd_als4000_get_format(snd_pcm_runtime_t *runtime)
176 if (snd_pcm_format_signed(runtime->format))
177 result |= ALS4000_FORMAT_SIGNED;
178 if (snd_pcm_format_physical_width(runtime->format) == 16)
179 result |= ALS4000_FORMAT_16BIT;
180 if (runtime->channels > 1)
181 result |= ALS4000_FORMAT_STEREO;
185 /* structure for setting up playback */
186 static const struct {
187 unsigned char dsp_cmd, dma_on, dma_off, format;
188 } playback_cmd_vals[]={
189 /* ALS4000_FORMAT_U8_MONO */
190 { SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_UNS_MONO },
191 /* ALS4000_FORMAT_S8_MONO */
192 { SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_SIGN_MONO },
193 /* ALS4000_FORMAT_U16L_MONO */
194 { SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_UNS_MONO },
195 /* ALS4000_FORMAT_S16L_MONO */
196 { SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_SIGN_MONO },
197 /* ALS4000_FORMAT_U8_STEREO */
198 { SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_UNS_STEREO },
199 /* ALS4000_FORMAT_S8_STEREO */
200 { SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_SIGN_STEREO },
201 /* ALS4000_FORMAT_U16L_STEREO */
202 { SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_UNS_STEREO },
203 /* ALS4000_FORMAT_S16L_STEREO */
204 { SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_SIGN_STEREO },
206 #define playback_cmd(chip) (playback_cmd_vals[(chip)->playback_format])
208 /* structure for setting up capture */
209 enum { CMD_WIDTH8=0x04, CMD_SIGNED=0x10, CMD_MONO=0x80, CMD_STEREO=0xA0 };
210 static const unsigned char capture_cmd_vals[]=
212 CMD_WIDTH8|CMD_MONO, /* ALS4000_FORMAT_U8_MONO */
213 CMD_WIDTH8|CMD_SIGNED|CMD_MONO, /* ALS4000_FORMAT_S8_MONO */
214 CMD_MONO, /* ALS4000_FORMAT_U16L_MONO */
215 CMD_SIGNED|CMD_MONO, /* ALS4000_FORMAT_S16L_MONO */
216 CMD_WIDTH8|CMD_STEREO, /* ALS4000_FORMAT_U8_STEREO */
217 CMD_WIDTH8|CMD_SIGNED|CMD_STEREO, /* ALS4000_FORMAT_S8_STEREO */
218 CMD_STEREO, /* ALS4000_FORMAT_U16L_STEREO */
219 CMD_SIGNED|CMD_STEREO, /* ALS4000_FORMAT_S16L_STEREO */
221 #define capture_cmd(chip) (capture_cmd_vals[(chip)->capture_format])
223 static int snd_als4000_hw_params(snd_pcm_substream_t * substream,
224 snd_pcm_hw_params_t * hw_params)
226 return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
229 static int snd_als4000_hw_free(snd_pcm_substream_t * substream)
231 snd_pcm_lib_free_pages(substream);
235 static int snd_als4000_capture_prepare(snd_pcm_substream_t * substream)
237 sb_t *chip = snd_pcm_substream_chip(substream);
238 snd_pcm_runtime_t *runtime = substream->runtime;
243 chip->capture_format = snd_als4000_get_format(runtime);
245 size = snd_pcm_lib_buffer_bytes(substream);
246 count = snd_pcm_lib_period_bytes(substream);
248 if (chip->capture_format & ALS4000_FORMAT_16BIT)
252 spin_lock_irqsave(&chip->reg_lock, flags);
253 snd_als4000_set_rate(chip, runtime->rate);
254 snd_als4000_set_capture_dma(chip, runtime->dma_addr, size);
255 spin_unlock_irqrestore(&chip->reg_lock, flags);
256 spin_lock_irqsave(&chip->mixer_lock, flags );
257 snd_sbmixer_write(chip, 0xdc, count);
258 snd_sbmixer_write(chip, 0xdd, count>>8);
259 spin_unlock_irqrestore(&chip->mixer_lock, flags );
263 static int snd_als4000_playback_prepare(snd_pcm_substream_t *substream)
265 sb_t *chip = snd_pcm_substream_chip(substream);
266 snd_pcm_runtime_t *runtime = substream->runtime;
271 chip->playback_format = snd_als4000_get_format(runtime);
273 size = snd_pcm_lib_buffer_bytes(substream);
274 count = snd_pcm_lib_period_bytes(substream);
276 if (chip->playback_format & ALS4000_FORMAT_16BIT)
280 /* FIXME: from second playback on, there's a lot more clicks and pops
281 * involved here than on first playback. Fiddling with
282 * tons of different settings didn't help (DMA, speaker on/off,
283 * reordering, ...). Something seems to get enabled on playback
284 * that I haven't found out how to disable again, which then causes
285 * the switching pops to reach the speakers the next time here. */
286 spin_lock_irqsave(&chip->reg_lock, flags);
287 snd_als4000_set_rate(chip, runtime->rate);
288 snd_als4000_set_playback_dma(chip, runtime->dma_addr, size);
290 /* SPEAKER_ON not needed, since dma_on seems to also enable speaker */
291 /* snd_sbdsp_command(chip, SB_DSP_SPEAKER_ON); */
292 snd_sbdsp_command(chip, playback_cmd(chip).dsp_cmd);
293 snd_sbdsp_command(chip, playback_cmd(chip).format);
294 snd_sbdsp_command(chip, count);
295 snd_sbdsp_command(chip, count>>8);
296 snd_sbdsp_command(chip, playback_cmd(chip).dma_off);
297 spin_unlock_irqrestore(&chip->reg_lock, flags);
302 static int snd_als4000_capture_trigger(snd_pcm_substream_t * substream, int cmd)
304 sb_t *chip = snd_pcm_substream_chip(substream);
307 spin_lock(&chip->mixer_lock);
308 if (cmd == SNDRV_PCM_TRIGGER_START) {
309 chip->mode |= SB_RATE_LOCK_CAPTURE;
310 snd_sbmixer_write(chip, 0xde, capture_cmd(chip));
311 } else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
312 chip->mode &= ~SB_RATE_LOCK_CAPTURE;
313 snd_sbmixer_write(chip, 0xde, 0);
317 spin_unlock(&chip->mixer_lock);
321 static int snd_als4000_playback_trigger(snd_pcm_substream_t * substream, int cmd)
323 sb_t *chip = snd_pcm_substream_chip(substream);
326 spin_lock(&chip->reg_lock);
327 if (cmd == SNDRV_PCM_TRIGGER_START) {
328 chip->mode |= SB_RATE_LOCK_PLAYBACK;
329 snd_sbdsp_command(chip, playback_cmd(chip).dma_on);
330 } else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
331 snd_sbdsp_command(chip, playback_cmd(chip).dma_off);
332 chip->mode &= ~SB_RATE_LOCK_PLAYBACK;
336 spin_unlock(&chip->reg_lock);
340 static snd_pcm_uframes_t snd_als4000_capture_pointer(snd_pcm_substream_t * substream)
342 sb_t *chip = snd_pcm_substream_chip(substream);
345 spin_lock(&chip->reg_lock);
346 result = snd_als4000_gcr_read(chip, 0xa4) & 0xffff;
347 spin_unlock(&chip->reg_lock);
348 return bytes_to_frames( substream->runtime, result );
351 static snd_pcm_uframes_t snd_als4000_playback_pointer(snd_pcm_substream_t * substream)
353 sb_t *chip = snd_pcm_substream_chip(substream);
356 spin_lock(&chip->reg_lock);
357 result = snd_als4000_gcr_read(chip, 0xa0) & 0xffff;
358 spin_unlock(&chip->reg_lock);
359 return bytes_to_frames( substream->runtime, result );
362 /* FIXME: this IRQ routine doesn't really support IRQ sharing (we always
363 * return IRQ_HANDLED no matter whether we actually had an IRQ flag or not).
364 * ALS4000a.PDF writes that while ACKing IRQ in PCI block will *not* ACK
365 * the IRQ in the SB core, ACKing IRQ in SB block *will* ACK the PCI IRQ
366 * register (alt_port + 0x0e). Probably something could be optimized here to
367 * query/write one register only...
368 * And even if both registers need to be queried, then there's still the
369 * question of whether it's actually correct to ACK PCI IRQ before reading
370 * SB IRQ like we do now, since ALS4000a.PDF mentions that PCI IRQ will *clear*
372 * And do we *really* need the lock here for *reading* SB_DSP4_IRQSTATUS??
374 static irqreturn_t snd_als4000_interrupt(int irq, void *dev_id, struct pt_regs *regs)
380 /* find out which bit of the ALS4000 produced the interrupt */
381 gcr_status = inb(chip->alt_port + 0xe);
383 if ((gcr_status & 0x80) && (chip->playback_substream)) /* playback */
384 snd_pcm_period_elapsed(chip->playback_substream);
385 if ((gcr_status & 0x40) && (chip->capture_substream)) /* capturing */
386 snd_pcm_period_elapsed(chip->capture_substream);
387 if ((gcr_status & 0x10) && (chip->rmidi)) /* MPU401 interrupt */
388 snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data, regs);
389 /* release the gcr */
390 outb(gcr_status, chip->alt_port + 0xe);
392 spin_lock(&chip->mixer_lock);
393 sb_status = snd_sbmixer_read(chip, SB_DSP4_IRQSTATUS);
394 spin_unlock(&chip->mixer_lock);
396 if (sb_status & SB_IRQTYPE_8BIT)
397 snd_sb_ack_8bit(chip);
398 if (sb_status & SB_IRQTYPE_16BIT)
399 snd_sb_ack_16bit(chip);
400 if (sb_status & SB_IRQTYPE_MPUIN)
402 if (sb_status & 0x20)
403 inb(SBP(chip, RESET));
407 /*****************************************************************/
409 static snd_pcm_hardware_t snd_als4000_playback =
411 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
412 SNDRV_PCM_INFO_MMAP_VALID),
413 .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
414 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE, /* formats */
415 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
420 .buffer_bytes_max = 65536,
421 .period_bytes_min = 64,
422 .period_bytes_max = 65536,
428 static snd_pcm_hardware_t snd_als4000_capture =
430 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
431 SNDRV_PCM_INFO_MMAP_VALID),
432 .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
433 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE, /* formats */
434 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
439 .buffer_bytes_max = 65536,
440 .period_bytes_min = 64,
441 .period_bytes_max = 65536,
447 /*****************************************************************/
449 static int snd_als4000_playback_open(snd_pcm_substream_t * substream)
451 sb_t *chip = snd_pcm_substream_chip(substream);
452 snd_pcm_runtime_t *runtime = substream->runtime;
454 chip->playback_substream = substream;
455 runtime->hw = snd_als4000_playback;
459 static int snd_als4000_playback_close(snd_pcm_substream_t * substream)
461 sb_t *chip = snd_pcm_substream_chip(substream);
463 chip->playback_substream = NULL;
464 snd_pcm_lib_free_pages(substream);
468 static int snd_als4000_capture_open(snd_pcm_substream_t * substream)
470 sb_t *chip = snd_pcm_substream_chip(substream);
471 snd_pcm_runtime_t *runtime = substream->runtime;
473 chip->capture_substream = substream;
474 runtime->hw = snd_als4000_capture;
478 static int snd_als4000_capture_close(snd_pcm_substream_t * substream)
480 sb_t *chip = snd_pcm_substream_chip(substream);
482 chip->capture_substream = NULL;
483 snd_pcm_lib_free_pages(substream);
487 /******************************************************************/
489 static snd_pcm_ops_t snd_als4000_playback_ops = {
490 .open = snd_als4000_playback_open,
491 .close = snd_als4000_playback_close,
492 .ioctl = snd_pcm_lib_ioctl,
493 .hw_params = snd_als4000_hw_params,
494 .hw_free = snd_als4000_hw_free,
495 .prepare = snd_als4000_playback_prepare,
496 .trigger = snd_als4000_playback_trigger,
497 .pointer = snd_als4000_playback_pointer
500 static snd_pcm_ops_t snd_als4000_capture_ops = {
501 .open = snd_als4000_capture_open,
502 .close = snd_als4000_capture_close,
503 .ioctl = snd_pcm_lib_ioctl,
504 .hw_params = snd_als4000_hw_params,
505 .hw_free = snd_als4000_hw_free,
506 .prepare = snd_als4000_capture_prepare,
507 .trigger = snd_als4000_capture_trigger,
508 .pointer = snd_als4000_capture_pointer
511 static int __devinit snd_als4000_pcm(sb_t *chip, int device)
516 if ((err = snd_pcm_new(chip->card, "ALS4000 DSP", device, 1, 1, &pcm)) < 0)
518 pcm->private_data = chip;
519 pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
520 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_als4000_playback_ops);
521 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_als4000_capture_ops);
523 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
531 /******************************************************************/
533 static void snd_als4000_set_addr(unsigned long gcr,
543 confB |= (mpu | 1) << 16;
547 confA |= (game | 1) << 16;
550 snd_als4000_gcr_write_addr(gcr, 0xa8, confA);
551 snd_als4000_gcr_write_addr(gcr, 0xa9, confB);
554 static void __devinit snd_als4000_configure(sb_t *chip)
559 /* do some more configuration */
560 spin_lock_irq(&chip->mixer_lock);
561 tmp = snd_sbmixer_read(chip, 0xc0);
562 snd_sbmixer_write(chip, 0xc0, tmp|0x80);
563 /* always select DMA channel 0, since we do not actually use DMA */
564 snd_sbmixer_write(chip, SB_DSP4_DMASETUP, SB_DMASETUP_DMA0);
565 snd_sbmixer_write(chip, 0xc0, tmp&0x7f);
566 spin_unlock_irq(&chip->mixer_lock);
568 spin_lock_irq(&chip->reg_lock);
569 /* magic number. Enables interrupts(?) */
570 snd_als4000_gcr_write(chip, 0x8c, 0x28000);
571 for(i = 0x91; i <= 0x96; ++i)
572 snd_als4000_gcr_write(chip, i, 0);
574 snd_als4000_gcr_write(chip, 0x99, snd_als4000_gcr_read(chip, 0x99));
575 spin_unlock_irq(&chip->reg_lock);
578 #ifdef SUPPORT_JOYSTICK
579 static int __devinit snd_als4000_create_gameport(snd_card_als4000_t *acard, int dev)
585 if (joystick_port[dev] == 0)
588 if (joystick_port[dev] == 1) { /* auto-detect */
589 for (io_port = 0x200; io_port <= 0x218; io_port += 8) {
590 r = request_region(io_port, 8, "ALS4000 gameport");
595 io_port = joystick_port[dev];
596 r = request_region(io_port, 8, "ALS4000 gameport");
600 printk(KERN_WARNING "als4000: cannot reserve joystick ports\n");
604 acard->gameport = gp = gameport_allocate_port();
606 printk(KERN_ERR "als4000: cannot allocate memory for gameport\n");
607 release_and_free_resource(r);
611 gameport_set_name(gp, "ALS4000 Gameport");
612 gameport_set_phys(gp, "pci%s/gameport0", pci_name(acard->pci));
613 gameport_set_dev_parent(gp, &acard->pci->dev);
615 gameport_set_port_data(gp, r);
617 /* Enable legacy joystick port */
618 snd_als4000_set_addr(acard->gcr, 0, 0, 0, 1);
620 gameport_register_port(acard->gameport);
625 static void snd_als4000_free_gameport(snd_card_als4000_t *acard)
627 if (acard->gameport) {
628 struct resource *r = gameport_get_port_data(acard->gameport);
630 gameport_unregister_port(acard->gameport);
631 acard->gameport = NULL;
633 snd_als4000_set_addr(acard->gcr, 0, 0, 0, 0); /* disable joystick */
634 release_and_free_resource(r);
638 static inline int snd_als4000_create_gameport(snd_card_als4000_t *acard, int dev) { return -ENOSYS; }
639 static inline void snd_als4000_free_gameport(snd_card_als4000_t *acard) { }
642 static void snd_card_als4000_free( snd_card_t *card )
644 snd_card_als4000_t * acard = (snd_card_als4000_t *)card->private_data;
646 /* make sure that interrupts are disabled */
647 snd_als4000_gcr_write_addr( acard->gcr, 0x8c, 0);
649 snd_als4000_free_gameport(acard);
650 pci_release_regions(acard->pci);
651 pci_disable_device(acard->pci);
654 static int __devinit snd_card_als4000_probe(struct pci_dev *pci,
655 const struct pci_device_id *pci_id)
659 snd_card_als4000_t *acard;
666 if (dev >= SNDRV_CARDS)
673 /* enable PCI device */
674 if ((err = pci_enable_device(pci)) < 0) {
677 /* check, if we can restrict PCI DMA transfers to 24 bits */
678 if (pci_set_dma_mask(pci, 0x00ffffff) < 0 ||
679 pci_set_consistent_dma_mask(pci, 0x00ffffff) < 0) {
680 snd_printk(KERN_ERR "architecture does not support 24bit PCI busmaster DMA\n");
681 pci_disable_device(pci);
685 if ((err = pci_request_regions(pci, "ALS4000")) < 0) {
686 pci_disable_device(pci);
689 gcr = pci_resource_start(pci, 0);
691 pci_read_config_word(pci, PCI_COMMAND, &word);
692 pci_write_config_word(pci, PCI_COMMAND, word | PCI_COMMAND_IO);
695 card = snd_card_new(index[dev], id[dev], THIS_MODULE,
696 sizeof( snd_card_als4000_t ) );
698 pci_release_regions(pci);
699 pci_disable_device(pci);
703 acard = (snd_card_als4000_t *)card->private_data;
706 card->private_free = snd_card_als4000_free;
708 /* disable all legacy ISA stuff */
709 snd_als4000_set_addr(acard->gcr, 0, 0, 0, 0);
711 if ((err = snd_sbdsp_create(card,
714 snd_als4000_interrupt,
723 chip->alt_port = gcr;
724 snd_card_set_dev(card, &pci->dev);
726 snd_als4000_configure(chip);
728 strcpy(card->driver, "ALS4000");
729 strcpy(card->shortname, "Avance Logic ALS4000");
730 sprintf(card->longname, "%s at 0x%lx, irq %i",
731 card->shortname, chip->alt_port, chip->irq);
733 if ((err = snd_mpu401_uart_new( card, 0, MPU401_HW_ALS4000,
734 gcr+0x30, 1, pci->irq, 0,
735 &chip->rmidi)) < 0) {
736 printk(KERN_ERR "als4000: no MPU-401 device at 0x%lx?\n", gcr+0x30);
740 if ((err = snd_als4000_pcm(chip, 0)) < 0) {
743 if ((err = snd_sbmixer_new(chip)) < 0) {
747 if (snd_opl3_create(card, gcr+0x10, gcr+0x12,
748 OPL3_HW_AUTO, 1, &opl3) < 0) {
749 printk(KERN_ERR "als4000: no OPL device at 0x%lx-0x%lx?\n",
750 gcr+0x10, gcr+0x12 );
752 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
757 snd_als4000_create_gameport(acard, dev);
759 if ((err = snd_card_register(card)) < 0) {
762 pci_set_drvdata(pci, card);
774 static void __devexit snd_card_als4000_remove(struct pci_dev *pci)
776 snd_card_free(pci_get_drvdata(pci));
777 pci_set_drvdata(pci, NULL);
780 static struct pci_driver driver = {
782 .id_table = snd_als4000_ids,
783 .probe = snd_card_als4000_probe,
784 .remove = __devexit_p(snd_card_als4000_remove),
787 static int __init alsa_card_als4000_init(void)
789 return pci_register_driver(&driver);
792 static void __exit alsa_card_als4000_exit(void)
794 pci_unregister_driver(&driver);
797 module_init(alsa_card_als4000_init)
798 module_exit(alsa_card_als4000_exit)