[ALSA] Remove sound/driver.h
[linux-2.6.git] / sound / pci / als4000.c
1 /*
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@perex.cz>
5  *  Copyright (C) 2002 by Andreas Mohr <hw7oshyuv3001@sneakemail.com>
6  *
7  *  Framework borrowed from Massimo Piccioni's card-als100.c.
8  *
9  *
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.
14  *
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.
19
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
23  *
24  * NOTES
25  *
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.
29  *
30  *  Note: this is no longer true. Pretty verbose chip docu (ALS4000a.PDF)
31  *  can be found on the ALSA web site.
32  *
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.
38  * 
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.
42  * 
43  * The ALS4000 can do real full duplex playback/capture.
44  *
45  * FMDAC:
46  * - 0x4f -> port 0x14
47  * - port 0x15 |= 1
48  *
49  * Enable/disable 3D sound:
50  * - 0x50 -> port 0x14
51  * - change bit 6 (0x40) of port 0x15
52  *
53  * Set QSound:
54  * - 0xdb -> port 0x14
55  * - set port 0x15:
56  *   0x3e (mode 3), 0x3c (mode 2), 0x3a (mode 1), 0x38 (mode 0)
57  *
58  * Set KSound:
59  * - value -> some port 0x0c0d
60  *
61  * ToDo:
62  * - Proper shared IRQ handling?
63  * - power management? (card can do voice wakeup according to datasheet!!)
64  */
65
66 #include <asm/io.h>
67 #include <linux/init.h>
68 #include <linux/pci.h>
69 #include <linux/slab.h>
70 #include <linux/gameport.h>
71 #include <linux/moduleparam.h>
72 #include <linux/dma-mapping.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>
78 #include <sound/sb.h>
79 #include <sound/initval.h>
80
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}}");
85
86 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
87 #define SUPPORT_JOYSTICK 1
88 #endif
89
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];
95 #endif
96
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)");
106 #endif
107
108 struct snd_card_als4000 {
109         /* most frequent access first */
110         unsigned long gcr;
111         struct pci_dev *pci;
112         struct snd_sb *chip;
113 #ifdef SUPPORT_JOYSTICK
114         struct gameport *gameport;
115 #endif
116 };
117
118 static struct pci_device_id snd_als4000_ids[] = {
119         { 0x4005, 0x4000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },   /* ALS4000 */
120         { 0, }
121 };
122
123 MODULE_DEVICE_TABLE(pci, snd_als4000_ids);
124
125 static inline void snd_als4000_gcr_write_addr(unsigned long port, u32 reg, u32 val)
126 {
127         outb(reg, port+0x0c);
128         outl(val, port+0x08);
129 }
130
131 static inline void snd_als4000_gcr_write(struct snd_sb *sb, u32 reg, u32 val)
132 {
133         snd_als4000_gcr_write_addr(sb->alt_port, reg, val);
134 }       
135
136 static inline u32 snd_als4000_gcr_read_addr(unsigned long port, u32 reg)
137 {
138         outb(reg, port+0x0c);
139         return inl(port+0x08);
140 }
141
142 static inline u32 snd_als4000_gcr_read(struct snd_sb *sb, u32 reg)
143 {
144         return snd_als4000_gcr_read_addr(sb->alt_port, reg);
145 }
146
147 static void snd_als4000_set_rate(struct snd_sb *chip, unsigned int rate)
148 {
149         if (!(chip->mode & SB_RATE_LOCK)) {
150                 snd_sbdsp_command(chip, SB_DSP_SAMPLE_RATE_OUT);
151                 snd_sbdsp_command(chip, rate>>8);
152                 snd_sbdsp_command(chip, rate);
153         }
154 }
155
156 static inline void snd_als4000_set_capture_dma(struct snd_sb *chip,
157                                                dma_addr_t addr, unsigned size)
158 {
159         snd_als4000_gcr_write(chip, 0xa2, addr);
160         snd_als4000_gcr_write(chip, 0xa3, (size-1));
161 }
162
163 static inline void snd_als4000_set_playback_dma(struct snd_sb *chip,
164                                                 dma_addr_t addr, unsigned size)
165 {
166         snd_als4000_gcr_write(chip, 0x91, addr);
167         snd_als4000_gcr_write(chip, 0x92, (size-1)|0x180000);
168 }
169
170 #define ALS4000_FORMAT_SIGNED   (1<<0)
171 #define ALS4000_FORMAT_16BIT    (1<<1)
172 #define ALS4000_FORMAT_STEREO   (1<<2)
173
174 static int snd_als4000_get_format(struct snd_pcm_runtime *runtime)
175 {
176         int result;
177
178         result = 0;
179         if (snd_pcm_format_signed(runtime->format))
180                 result |= ALS4000_FORMAT_SIGNED;
181         if (snd_pcm_format_physical_width(runtime->format) == 16)
182                 result |= ALS4000_FORMAT_16BIT;
183         if (runtime->channels > 1)
184                 result |= ALS4000_FORMAT_STEREO;
185         return result;
186 }
187
188 /* structure for setting up playback */
189 static const struct {
190         unsigned char dsp_cmd, dma_on, dma_off, format;
191 } playback_cmd_vals[]={
192 /* ALS4000_FORMAT_U8_MONO */
193 { SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_UNS_MONO },
194 /* ALS4000_FORMAT_S8_MONO */    
195 { SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_SIGN_MONO },
196 /* ALS4000_FORMAT_U16L_MONO */
197 { SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_UNS_MONO },
198 /* ALS4000_FORMAT_S16L_MONO */
199 { SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_SIGN_MONO },
200 /* ALS4000_FORMAT_U8_STEREO */
201 { SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_UNS_STEREO },
202 /* ALS4000_FORMAT_S8_STEREO */  
203 { SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_SIGN_STEREO },
204 /* ALS4000_FORMAT_U16L_STEREO */
205 { SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_UNS_STEREO },
206 /* ALS4000_FORMAT_S16L_STEREO */
207 { SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_SIGN_STEREO },
208 };
209 #define playback_cmd(chip) (playback_cmd_vals[(chip)->playback_format])
210
211 /* structure for setting up capture */
212 enum { CMD_WIDTH8=0x04, CMD_SIGNED=0x10, CMD_MONO=0x80, CMD_STEREO=0xA0 };
213 static const unsigned char capture_cmd_vals[]=
214 {
215 CMD_WIDTH8|CMD_MONO,                    /* ALS4000_FORMAT_U8_MONO */
216 CMD_WIDTH8|CMD_SIGNED|CMD_MONO,         /* ALS4000_FORMAT_S8_MONO */    
217 CMD_MONO,                               /* ALS4000_FORMAT_U16L_MONO */
218 CMD_SIGNED|CMD_MONO,                    /* ALS4000_FORMAT_S16L_MONO */
219 CMD_WIDTH8|CMD_STEREO,                  /* ALS4000_FORMAT_U8_STEREO */
220 CMD_WIDTH8|CMD_SIGNED|CMD_STEREO,       /* ALS4000_FORMAT_S8_STEREO */  
221 CMD_STEREO,                             /* ALS4000_FORMAT_U16L_STEREO */
222 CMD_SIGNED|CMD_STEREO,                  /* ALS4000_FORMAT_S16L_STEREO */
223 };      
224 #define capture_cmd(chip) (capture_cmd_vals[(chip)->capture_format])
225
226 static int snd_als4000_hw_params(struct snd_pcm_substream *substream,
227                                  struct snd_pcm_hw_params *hw_params)
228 {
229         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
230 }
231
232 static int snd_als4000_hw_free(struct snd_pcm_substream *substream)
233 {
234         snd_pcm_lib_free_pages(substream);
235         return 0;
236 }
237
238 static int snd_als4000_capture_prepare(struct snd_pcm_substream *substream)
239 {
240         struct snd_sb *chip = snd_pcm_substream_chip(substream);
241         struct snd_pcm_runtime *runtime = substream->runtime;
242         unsigned long size;
243         unsigned count;
244
245         chip->capture_format = snd_als4000_get_format(runtime);
246                 
247         size = snd_pcm_lib_buffer_bytes(substream);
248         count = snd_pcm_lib_period_bytes(substream);
249         
250         if (chip->capture_format & ALS4000_FORMAT_16BIT)
251                 count >>=1;
252         count--;
253
254         spin_lock_irq(&chip->reg_lock);
255         snd_als4000_set_rate(chip, runtime->rate);
256         snd_als4000_set_capture_dma(chip, runtime->dma_addr, size);
257         spin_unlock_irq(&chip->reg_lock);
258         spin_lock_irq(&chip->mixer_lock);
259         snd_sbmixer_write(chip, 0xdc, count);
260         snd_sbmixer_write(chip, 0xdd, count>>8);
261         spin_unlock_irq(&chip->mixer_lock);
262         return 0;
263 }
264
265 static int snd_als4000_playback_prepare(struct snd_pcm_substream *substream)
266 {
267         struct snd_sb *chip = snd_pcm_substream_chip(substream);
268         struct snd_pcm_runtime *runtime = substream->runtime;
269         unsigned long size;
270         unsigned count;
271
272         chip->playback_format = snd_als4000_get_format(runtime);
273         
274         size = snd_pcm_lib_buffer_bytes(substream);
275         count = snd_pcm_lib_period_bytes(substream);
276         
277         if (chip->playback_format & ALS4000_FORMAT_16BIT)
278                 count >>=1;
279         count--;
280         
281         /* FIXME: from second playback on, there's a lot more clicks and pops
282          * involved here than on first playback. Fiddling with
283          * tons of different settings didn't help (DMA, speaker on/off,
284          * reordering, ...). Something seems to get enabled on playback
285          * that I haven't found out how to disable again, which then causes
286          * the switching pops to reach the speakers the next time here. */
287         spin_lock_irq(&chip->reg_lock);
288         snd_als4000_set_rate(chip, runtime->rate);
289         snd_als4000_set_playback_dma(chip, runtime->dma_addr, size);
290         
291         /* SPEAKER_ON not needed, since dma_on seems to also enable speaker */
292         /* snd_sbdsp_command(chip, SB_DSP_SPEAKER_ON); */
293         snd_sbdsp_command(chip, playback_cmd(chip).dsp_cmd);
294         snd_sbdsp_command(chip, playback_cmd(chip).format);
295         snd_sbdsp_command(chip, count);
296         snd_sbdsp_command(chip, count>>8);
297         snd_sbdsp_command(chip, playback_cmd(chip).dma_off);    
298         spin_unlock_irq(&chip->reg_lock);
299         
300         return 0;
301 }
302
303 static int snd_als4000_capture_trigger(struct snd_pcm_substream *substream, int cmd)
304 {
305         struct snd_sb *chip = snd_pcm_substream_chip(substream);
306         int result = 0;
307         
308         spin_lock(&chip->mixer_lock);
309         switch (cmd) {
310         case SNDRV_PCM_TRIGGER_START:
311         case SNDRV_PCM_TRIGGER_RESUME:
312                 chip->mode |= SB_RATE_LOCK_CAPTURE;
313                 snd_sbmixer_write(chip, 0xde, capture_cmd(chip));
314                 break;
315         case SNDRV_PCM_TRIGGER_STOP:
316         case SNDRV_PCM_TRIGGER_SUSPEND:
317                 chip->mode &= ~SB_RATE_LOCK_CAPTURE;
318                 snd_sbmixer_write(chip, 0xde, 0);
319                 break;
320         default:
321                 result = -EINVAL;
322                 break;
323         }
324         spin_unlock(&chip->mixer_lock);
325         return result;
326 }
327
328 static int snd_als4000_playback_trigger(struct snd_pcm_substream *substream, int cmd)
329 {
330         struct snd_sb *chip = snd_pcm_substream_chip(substream);
331         int result = 0;
332
333         spin_lock(&chip->reg_lock);
334         switch (cmd) {
335         case SNDRV_PCM_TRIGGER_START:
336         case SNDRV_PCM_TRIGGER_RESUME:
337                 chip->mode |= SB_RATE_LOCK_PLAYBACK;
338                 snd_sbdsp_command(chip, playback_cmd(chip).dma_on);
339                 break;
340         case SNDRV_PCM_TRIGGER_STOP:
341         case SNDRV_PCM_TRIGGER_SUSPEND:
342                 snd_sbdsp_command(chip, playback_cmd(chip).dma_off);
343                 chip->mode &= ~SB_RATE_LOCK_PLAYBACK;
344                 break;
345         default:
346                 result = -EINVAL;
347                 break;
348         }
349         spin_unlock(&chip->reg_lock);
350         return result;
351 }
352
353 static snd_pcm_uframes_t snd_als4000_capture_pointer(struct snd_pcm_substream *substream)
354 {
355         struct snd_sb *chip = snd_pcm_substream_chip(substream);
356         unsigned int result;
357
358         spin_lock(&chip->reg_lock);     
359         result = snd_als4000_gcr_read(chip, 0xa4) & 0xffff;
360         spin_unlock(&chip->reg_lock);
361         return bytes_to_frames( substream->runtime, result );
362 }
363
364 static snd_pcm_uframes_t snd_als4000_playback_pointer(struct snd_pcm_substream *substream)
365 {
366         struct snd_sb *chip = snd_pcm_substream_chip(substream);
367         unsigned result;
368
369         spin_lock(&chip->reg_lock);     
370         result = snd_als4000_gcr_read(chip, 0xa0) & 0xffff;
371         spin_unlock(&chip->reg_lock);
372         return bytes_to_frames( substream->runtime, result );
373 }
374
375 /* FIXME: this IRQ routine doesn't really support IRQ sharing (we always
376  * return IRQ_HANDLED no matter whether we actually had an IRQ flag or not).
377  * ALS4000a.PDF writes that while ACKing IRQ in PCI block will *not* ACK
378  * the IRQ in the SB core, ACKing IRQ in SB block *will* ACK the PCI IRQ
379  * register (alt_port + 0x0e). Probably something could be optimized here to
380  * query/write one register only...
381  * And even if both registers need to be queried, then there's still the
382  * question of whether it's actually correct to ACK PCI IRQ before reading
383  * SB IRQ like we do now, since ALS4000a.PDF mentions that PCI IRQ will *clear*
384  * SB IRQ status.
385  * And do we *really* need the lock here for *reading* SB_DSP4_IRQSTATUS??
386  * */
387 static irqreturn_t snd_als4000_interrupt(int irq, void *dev_id)
388 {
389         struct snd_sb *chip = dev_id;
390         unsigned gcr_status;
391         unsigned sb_status;
392
393         /* find out which bit of the ALS4000 produced the interrupt */
394         gcr_status = inb(chip->alt_port + 0xe);
395
396         if ((gcr_status & 0x80) && (chip->playback_substream)) /* playback */
397                 snd_pcm_period_elapsed(chip->playback_substream);
398         if ((gcr_status & 0x40) && (chip->capture_substream)) /* capturing */
399                 snd_pcm_period_elapsed(chip->capture_substream);
400         if ((gcr_status & 0x10) && (chip->rmidi)) /* MPU401 interrupt */
401                 snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
402         /* release the gcr */
403         outb(gcr_status, chip->alt_port + 0xe);
404         
405         spin_lock(&chip->mixer_lock);
406         sb_status = snd_sbmixer_read(chip, SB_DSP4_IRQSTATUS);
407         spin_unlock(&chip->mixer_lock);
408         
409         if (sb_status & SB_IRQTYPE_8BIT) 
410                 snd_sb_ack_8bit(chip);
411         if (sb_status & SB_IRQTYPE_16BIT) 
412                 snd_sb_ack_16bit(chip);
413         if (sb_status & SB_IRQTYPE_MPUIN)
414                 inb(chip->mpu_port);
415         if (sb_status & 0x20)
416                 inb(SBP(chip, RESET));
417         return IRQ_HANDLED;
418 }
419
420 /*****************************************************************/
421
422 static struct snd_pcm_hardware snd_als4000_playback =
423 {
424         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
425                                  SNDRV_PCM_INFO_MMAP_VALID),
426         .formats =              SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
427                                 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE,      /* formats */
428         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
429         .rate_min =             4000,
430         .rate_max =             48000,
431         .channels_min =         1,
432         .channels_max =         2,
433         .buffer_bytes_max =     65536,
434         .period_bytes_min =     64,
435         .period_bytes_max =     65536,
436         .periods_min =          1,
437         .periods_max =          1024,
438         .fifo_size =            0
439 };
440
441 static struct snd_pcm_hardware snd_als4000_capture =
442 {
443         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
444                                  SNDRV_PCM_INFO_MMAP_VALID),
445         .formats =              SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
446                                 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE,      /* formats */
447         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
448         .rate_min =             4000,
449         .rate_max =             48000,
450         .channels_min =         1,
451         .channels_max =         2,
452         .buffer_bytes_max =     65536,
453         .period_bytes_min =     64,
454         .period_bytes_max =     65536,
455         .periods_min =          1,
456         .periods_max =          1024,
457         .fifo_size =            0
458 };
459
460 /*****************************************************************/
461
462 static int snd_als4000_playback_open(struct snd_pcm_substream *substream)
463 {
464         struct snd_sb *chip = snd_pcm_substream_chip(substream);
465         struct snd_pcm_runtime *runtime = substream->runtime;
466
467         chip->playback_substream = substream;
468         runtime->hw = snd_als4000_playback;
469         return 0;
470 }
471
472 static int snd_als4000_playback_close(struct snd_pcm_substream *substream)
473 {
474         struct snd_sb *chip = snd_pcm_substream_chip(substream);
475
476         chip->playback_substream = NULL;
477         snd_pcm_lib_free_pages(substream);
478         return 0;
479 }
480
481 static int snd_als4000_capture_open(struct snd_pcm_substream *substream)
482 {
483         struct snd_sb *chip = snd_pcm_substream_chip(substream);
484         struct snd_pcm_runtime *runtime = substream->runtime;
485
486         chip->capture_substream = substream;
487         runtime->hw = snd_als4000_capture;
488         return 0;
489 }
490
491 static int snd_als4000_capture_close(struct snd_pcm_substream *substream)
492 {
493         struct snd_sb *chip = snd_pcm_substream_chip(substream);
494
495         chip->capture_substream = NULL;
496         snd_pcm_lib_free_pages(substream);
497         return 0;
498 }
499
500 /******************************************************************/
501
502 static struct snd_pcm_ops snd_als4000_playback_ops = {
503         .open =         snd_als4000_playback_open,
504         .close =        snd_als4000_playback_close,
505         .ioctl =        snd_pcm_lib_ioctl,
506         .hw_params =    snd_als4000_hw_params,
507         .hw_free =      snd_als4000_hw_free,
508         .prepare =      snd_als4000_playback_prepare,
509         .trigger =      snd_als4000_playback_trigger,
510         .pointer =      snd_als4000_playback_pointer
511 };
512
513 static struct snd_pcm_ops snd_als4000_capture_ops = {
514         .open =         snd_als4000_capture_open,
515         .close =        snd_als4000_capture_close,
516         .ioctl =        snd_pcm_lib_ioctl,
517         .hw_params =    snd_als4000_hw_params,
518         .hw_free =      snd_als4000_hw_free,
519         .prepare =      snd_als4000_capture_prepare,
520         .trigger =      snd_als4000_capture_trigger,
521         .pointer =      snd_als4000_capture_pointer
522 };
523
524 static int __devinit snd_als4000_pcm(struct snd_sb *chip, int device)
525 {
526         struct snd_pcm *pcm;
527         int err;
528
529         if ((err = snd_pcm_new(chip->card, "ALS4000 DSP", device, 1, 1, &pcm)) < 0)
530                 return err;
531         pcm->private_data = chip;
532         pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
533         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_als4000_playback_ops);
534         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_als4000_capture_ops);
535
536         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
537                                               64*1024, 64*1024);
538
539         chip->pcm = pcm;
540
541         return 0;
542 }
543
544 /******************************************************************/
545
546 static void snd_als4000_set_addr(unsigned long gcr,
547                                         unsigned int sb,
548                                         unsigned int mpu,
549                                         unsigned int opl,
550                                         unsigned int game)
551 {
552         u32 confA = 0;
553         u32 confB = 0;
554
555         if (mpu > 0)
556                 confB |= (mpu | 1) << 16;
557         if (sb > 0)
558                 confB |= (sb | 1);
559         if (game > 0)
560                 confA |= (game | 1) << 16;
561         if (opl > 0)    
562                 confA |= (opl | 1);
563         snd_als4000_gcr_write_addr(gcr, 0xa8, confA);
564         snd_als4000_gcr_write_addr(gcr, 0xa9, confB);
565 }
566
567 static void snd_als4000_configure(struct snd_sb *chip)
568 {
569         unsigned tmp;
570         int i;
571
572         /* do some more configuration */
573         spin_lock_irq(&chip->mixer_lock);
574         tmp = snd_sbmixer_read(chip, 0xc0);
575         snd_sbmixer_write(chip, 0xc0, tmp|0x80);
576         /* always select DMA channel 0, since we do not actually use DMA */
577         snd_sbmixer_write(chip, SB_DSP4_DMASETUP, SB_DMASETUP_DMA0);
578         snd_sbmixer_write(chip, 0xc0, tmp&0x7f);
579         spin_unlock_irq(&chip->mixer_lock);
580         
581         spin_lock_irq(&chip->reg_lock);
582         /* magic number. Enables interrupts(?) */
583         snd_als4000_gcr_write(chip, 0x8c, 0x28000);
584         for(i = 0x91; i <= 0x96; ++i)
585                 snd_als4000_gcr_write(chip, i, 0);
586         
587         snd_als4000_gcr_write(chip, 0x99, snd_als4000_gcr_read(chip, 0x99));
588         spin_unlock_irq(&chip->reg_lock);
589 }
590
591 #ifdef SUPPORT_JOYSTICK
592 static int __devinit snd_als4000_create_gameport(struct snd_card_als4000 *acard, int dev)
593 {
594         struct gameport *gp;
595         struct resource *r;
596         int io_port;
597
598         if (joystick_port[dev] == 0)
599                 return -ENODEV;
600
601         if (joystick_port[dev] == 1) { /* auto-detect */
602                 for (io_port = 0x200; io_port <= 0x218; io_port += 8) {
603                         r = request_region(io_port, 8, "ALS4000 gameport");
604                         if (r)
605                                 break;
606                 }
607         } else {
608                 io_port = joystick_port[dev];
609                 r = request_region(io_port, 8, "ALS4000 gameport");
610         }
611
612         if (!r) {
613                 printk(KERN_WARNING "als4000: cannot reserve joystick ports\n");
614                 return -EBUSY;
615         }
616
617         acard->gameport = gp = gameport_allocate_port();
618         if (!gp) {
619                 printk(KERN_ERR "als4000: cannot allocate memory for gameport\n");
620                 release_and_free_resource(r);
621                 return -ENOMEM;
622         }
623
624         gameport_set_name(gp, "ALS4000 Gameport");
625         gameport_set_phys(gp, "pci%s/gameport0", pci_name(acard->pci));
626         gameport_set_dev_parent(gp, &acard->pci->dev);
627         gp->io = io_port;
628         gameport_set_port_data(gp, r);
629
630         /* Enable legacy joystick port */
631         snd_als4000_set_addr(acard->gcr, 0, 0, 0, 1);
632
633         gameport_register_port(acard->gameport);
634
635         return 0;
636 }
637
638 static void snd_als4000_free_gameport(struct snd_card_als4000 *acard)
639 {
640         if (acard->gameport) {
641                 struct resource *r = gameport_get_port_data(acard->gameport);
642
643                 gameport_unregister_port(acard->gameport);
644                 acard->gameport = NULL;
645
646                 snd_als4000_set_addr(acard->gcr, 0, 0, 0, 0); /* disable joystick */
647                 release_and_free_resource(r);
648         }
649 }
650 #else
651 static inline int snd_als4000_create_gameport(struct snd_card_als4000 *acard, int dev) { return -ENOSYS; }
652 static inline void snd_als4000_free_gameport(struct snd_card_als4000 *acard) { }
653 #endif
654
655 static void snd_card_als4000_free( struct snd_card *card )
656 {
657         struct snd_card_als4000 * acard = (struct snd_card_als4000 *)card->private_data;
658
659         /* make sure that interrupts are disabled */
660         snd_als4000_gcr_write_addr( acard->gcr, 0x8c, 0);
661         /* free resources */
662         snd_als4000_free_gameport(acard);
663         pci_release_regions(acard->pci);
664         pci_disable_device(acard->pci);
665 }
666
667 static int __devinit snd_card_als4000_probe(struct pci_dev *pci,
668                                           const struct pci_device_id *pci_id)
669 {
670         static int dev;
671         struct snd_card *card;
672         struct snd_card_als4000 *acard;
673         unsigned long gcr;
674         struct snd_sb *chip;
675         struct snd_opl3 *opl3;
676         unsigned short word;
677         int err;
678
679         if (dev >= SNDRV_CARDS)
680                 return -ENODEV;
681         if (!enable[dev]) {
682                 dev++;
683                 return -ENOENT;
684         }
685
686         /* enable PCI device */
687         if ((err = pci_enable_device(pci)) < 0) {
688                 return err;
689         }
690         /* check, if we can restrict PCI DMA transfers to 24 bits */
691         if (pci_set_dma_mask(pci, DMA_24BIT_MASK) < 0 ||
692             pci_set_consistent_dma_mask(pci, DMA_24BIT_MASK) < 0) {
693                 snd_printk(KERN_ERR "architecture does not support 24bit PCI busmaster DMA\n");
694                 pci_disable_device(pci);
695                 return -ENXIO;
696         }
697
698         if ((err = pci_request_regions(pci, "ALS4000")) < 0) {
699                 pci_disable_device(pci);
700                 return err;
701         }
702         gcr = pci_resource_start(pci, 0);
703
704         pci_read_config_word(pci, PCI_COMMAND, &word);
705         pci_write_config_word(pci, PCI_COMMAND, word | PCI_COMMAND_IO);
706         pci_set_master(pci);
707         
708         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 
709                             sizeof( struct snd_card_als4000 ) );
710         if (card == NULL) {
711                 pci_release_regions(pci);
712                 pci_disable_device(pci);
713                 return -ENOMEM;
714         }
715
716         acard = (struct snd_card_als4000 *)card->private_data;
717         acard->pci = pci;
718         acard->gcr = gcr;
719         card->private_free = snd_card_als4000_free;
720
721         /* disable all legacy ISA stuff */
722         snd_als4000_set_addr(acard->gcr, 0, 0, 0, 0);
723
724         if ((err = snd_sbdsp_create(card,
725                                     gcr + 0x10,
726                                     pci->irq,
727                                     snd_als4000_interrupt,
728                                     -1,
729                                     -1,
730                                     SB_HW_ALS4000,
731                                     &chip)) < 0) {
732                 goto out_err;
733         }
734         acard->chip = chip;
735
736         chip->pci = pci;
737         chip->alt_port = gcr;
738         snd_card_set_dev(card, &pci->dev);
739
740         snd_als4000_configure(chip);
741
742         strcpy(card->driver, "ALS4000");
743         strcpy(card->shortname, "Avance Logic ALS4000");
744         sprintf(card->longname, "%s at 0x%lx, irq %i",
745                 card->shortname, chip->alt_port, chip->irq);
746
747         if ((err = snd_mpu401_uart_new( card, 0, MPU401_HW_ALS4000,
748                                         gcr+0x30, MPU401_INFO_INTEGRATED,
749                                         pci->irq, 0, &chip->rmidi)) < 0) {
750                 printk(KERN_ERR "als4000: no MPU-401 device at 0x%lx?\n", gcr+0x30);
751                 goto out_err;
752         }
753
754         if ((err = snd_als4000_pcm(chip, 0)) < 0) {
755                 goto out_err;
756         }
757         if ((err = snd_sbmixer_new(chip)) < 0) {
758                 goto out_err;
759         }           
760
761         if (snd_opl3_create(card, gcr+0x10, gcr+0x12,
762                             OPL3_HW_AUTO, 1, &opl3) < 0) {
763                 printk(KERN_ERR "als4000: no OPL device at 0x%lx-0x%lx?\n",
764                            gcr+0x10, gcr+0x12 );
765         } else {
766                 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
767                         goto out_err;
768                 }
769         }
770
771         snd_als4000_create_gameport(acard, dev);
772
773         if ((err = snd_card_register(card)) < 0) {
774                 goto out_err;
775         }
776         pci_set_drvdata(pci, card);
777         dev++;
778         err = 0;
779         goto out;
780
781 out_err:
782         snd_card_free(card);
783         
784 out:
785         return err;
786 }
787
788 static void __devexit snd_card_als4000_remove(struct pci_dev *pci)
789 {
790         snd_card_free(pci_get_drvdata(pci));
791         pci_set_drvdata(pci, NULL);
792 }
793
794 #ifdef CONFIG_PM
795 static int snd_als4000_suspend(struct pci_dev *pci, pm_message_t state)
796 {
797         struct snd_card *card = pci_get_drvdata(pci);
798         struct snd_card_als4000 *acard = card->private_data;
799         struct snd_sb *chip = acard->chip;
800
801         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
802         
803         snd_pcm_suspend_all(chip->pcm);
804         snd_sbmixer_suspend(chip);
805
806         pci_disable_device(pci);
807         pci_save_state(pci);
808         pci_set_power_state(pci, pci_choose_state(pci, state));
809         return 0;
810 }
811
812 static int snd_als4000_resume(struct pci_dev *pci)
813 {
814         struct snd_card *card = pci_get_drvdata(pci);
815         struct snd_card_als4000 *acard = card->private_data;
816         struct snd_sb *chip = acard->chip;
817
818         pci_set_power_state(pci, PCI_D0);
819         pci_restore_state(pci);
820         if (pci_enable_device(pci) < 0) {
821                 printk(KERN_ERR "als4000: pci_enable_device failed, "
822                        "disabling device\n");
823                 snd_card_disconnect(card);
824                 return -EIO;
825         }
826         pci_set_master(pci);
827
828         snd_als4000_configure(chip);
829         snd_sbdsp_reset(chip);
830         snd_sbmixer_resume(chip);
831
832 #ifdef SUPPORT_JOYSTICK
833         if (acard->gameport)
834                 snd_als4000_set_addr(acard->gcr, 0, 0, 0, 1);
835 #endif
836
837         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
838         return 0;
839 }
840 #endif
841
842
843 static struct pci_driver driver = {
844         .name = "ALS4000",
845         .id_table = snd_als4000_ids,
846         .probe = snd_card_als4000_probe,
847         .remove = __devexit_p(snd_card_als4000_remove),
848 #ifdef CONFIG_PM
849         .suspend = snd_als4000_suspend,
850         .resume = snd_als4000_resume,
851 #endif
852 };
853
854 static int __init alsa_card_als4000_init(void)
855 {
856         return pci_register_driver(&driver);
857 }
858
859 static void __exit alsa_card_als4000_exit(void)
860 {
861         pci_unregister_driver(&driver);
862 }
863
864 module_init(alsa_card_als4000_init)
865 module_exit(alsa_card_als4000_exit)