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TOMOYO Linux Cross Reference
Linux/sound/isa/galaxy/galaxy.c

Version: ~ [ linux-5.5-rc7 ] ~ [ linux-5.4.13 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.97 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.166 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.210 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.210 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.81 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /*
  2  * Aztech AZT1605/AZT2316 Driver
  3  * Copyright (C) 2007,2010  Rene Herman
  4  *
  5  * This program is free software: you can redistribute it and/or modify
  6  * it under the terms of the GNU General Public License as published by
  7  * the Free Software Foundation, either version 2 of the License, or
  8  * (at your option) any later version.
  9  *
 10  * This program is distributed in the hope that it will be useful,
 11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 13  * GNU General Public License for more details.
 14  *
 15  * You should have received a copy of the GNU General Public License
 16  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 17  *
 18  */
 19 
 20 #include <linux/kernel.h>
 21 #include <linux/module.h>
 22 #include <linux/isa.h>
 23 #include <linux/delay.h>
 24 #include <linux/io.h>
 25 #include <asm/processor.h>
 26 #include <sound/core.h>
 27 #include <sound/initval.h>
 28 #include <sound/wss.h>
 29 #include <sound/mpu401.h>
 30 #include <sound/opl3.h>
 31 
 32 MODULE_DESCRIPTION(CRD_NAME);
 33 MODULE_AUTHOR("Rene Herman");
 34 MODULE_LICENSE("GPL");
 35 
 36 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
 37 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
 38 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;
 39 
 40 module_param_array(index, int, NULL, 0444);
 41 MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
 42 module_param_array(id, charp, NULL, 0444);
 43 MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
 44 module_param_array(enable, bool, NULL, 0444);
 45 MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
 46 
 47 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
 48 static long wss_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
 49 static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
 50 static long fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
 51 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
 52 static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
 53 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
 54 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
 55 
 56 module_param_array(port, long, NULL, 0444);
 57 MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
 58 module_param_array(wss_port, long, NULL, 0444);
 59 MODULE_PARM_DESC(wss_port, "WSS port # for " CRD_NAME " driver.");
 60 module_param_array(mpu_port, long, NULL, 0444);
 61 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " CRD_NAME " driver.");
 62 module_param_array(fm_port, long, NULL, 0444);
 63 MODULE_PARM_DESC(fm_port, "FM port # for " CRD_NAME " driver.");
 64 module_param_array(irq, int, NULL, 0444);
 65 MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
 66 module_param_array(mpu_irq, int, NULL, 0444);
 67 MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " CRD_NAME " driver.");
 68 module_param_array(dma1, int, NULL, 0444);
 69 MODULE_PARM_DESC(dma1, "Playback DMA # for " CRD_NAME " driver.");
 70 module_param_array(dma2, int, NULL, 0444);
 71 MODULE_PARM_DESC(dma2, "Capture DMA # for " CRD_NAME " driver.");
 72 
 73 /*
 74  * Generic SB DSP support routines
 75  */
 76 
 77 #define DSP_PORT_RESET          0x6
 78 #define DSP_PORT_READ           0xa
 79 #define DSP_PORT_COMMAND        0xc
 80 #define DSP_PORT_STATUS         0xc
 81 #define DSP_PORT_DATA_AVAIL     0xe
 82 
 83 #define DSP_SIGNATURE           0xaa
 84 
 85 #define DSP_COMMAND_GET_VERSION 0xe1
 86 
 87 static int dsp_get_byte(void __iomem *port, u8 *val)
 88 {
 89         int loops = 1000;
 90 
 91         while (!(ioread8(port + DSP_PORT_DATA_AVAIL) & 0x80)) {
 92                 if (!loops--)
 93                         return -EIO;
 94                 cpu_relax();
 95         }
 96         *val = ioread8(port + DSP_PORT_READ);
 97         return 0;
 98 }
 99 
100 static int dsp_reset(void __iomem *port)
101 {
102         u8 val;
103 
104         iowrite8(1, port + DSP_PORT_RESET);
105         udelay(10);
106         iowrite8(0, port + DSP_PORT_RESET);
107 
108         if (dsp_get_byte(port, &val) < 0 || val != DSP_SIGNATURE)
109                 return -ENODEV;
110 
111         return 0;
112 }
113 
114 static int dsp_command(void __iomem *port, u8 cmd)
115 {
116         int loops = 1000;
117 
118         while (ioread8(port + DSP_PORT_STATUS) & 0x80) {
119                 if (!loops--)
120                         return -EIO;
121                 cpu_relax();
122         }
123         iowrite8(cmd, port + DSP_PORT_COMMAND);
124         return 0;
125 }
126 
127 static int dsp_get_version(void __iomem *port, u8 *major, u8 *minor)
128 {
129         int err;
130 
131         err = dsp_command(port, DSP_COMMAND_GET_VERSION);
132         if (err < 0)
133                 return err;
134 
135         err = dsp_get_byte(port, major);
136         if (err < 0)
137                 return err;
138 
139         err = dsp_get_byte(port, minor);
140         if (err < 0)
141                 return err;
142 
143         return 0;
144 }
145 
146 /*
147  * Generic WSS support routines
148  */
149 
150 #define WSS_CONFIG_DMA_0        (1 << 0)
151 #define WSS_CONFIG_DMA_1        (2 << 0)
152 #define WSS_CONFIG_DMA_3        (3 << 0)
153 #define WSS_CONFIG_DUPLEX       (1 << 2)
154 #define WSS_CONFIG_IRQ_7        (1 << 3)
155 #define WSS_CONFIG_IRQ_9        (2 << 3)
156 #define WSS_CONFIG_IRQ_10       (3 << 3)
157 #define WSS_CONFIG_IRQ_11       (4 << 3)
158 
159 #define WSS_PORT_CONFIG         0
160 #define WSS_PORT_SIGNATURE      3
161 
162 #define WSS_SIGNATURE           4
163 
164 static int wss_detect(void __iomem *wss_port)
165 {
166         if ((ioread8(wss_port + WSS_PORT_SIGNATURE) & 0x3f) != WSS_SIGNATURE)
167                 return -ENODEV;
168 
169         return 0;
170 }
171 
172 static void wss_set_config(void __iomem *wss_port, u8 wss_config)
173 {
174         iowrite8(wss_config, wss_port + WSS_PORT_CONFIG);
175 }
176 
177 /*
178  * Aztech Sound Galaxy specifics
179  */
180 
181 #define GALAXY_PORT_CONFIG      1024
182 #define CONFIG_PORT_SET         4
183 
184 #define DSP_COMMAND_GALAXY_8    8
185 #define GALAXY_COMMAND_GET_TYPE 5
186 
187 #define DSP_COMMAND_GALAXY_9    9
188 #define GALAXY_COMMAND_WSSMODE  0
189 #define GALAXY_COMMAND_SB8MODE  1
190 
191 #define GALAXY_MODE_WSS         GALAXY_COMMAND_WSSMODE
192 #define GALAXY_MODE_SB8         GALAXY_COMMAND_SB8MODE
193 
194 struct snd_galaxy {
195         void __iomem *port;
196         void __iomem *config_port;
197         void __iomem *wss_port;
198         u32 config;
199         struct resource *res_port;
200         struct resource *res_config_port;
201         struct resource *res_wss_port;
202 };
203 
204 static u32 config[SNDRV_CARDS];
205 static u8 wss_config[SNDRV_CARDS];
206 
207 static int snd_galaxy_match(struct device *dev, unsigned int n)
208 {
209         if (!enable[n])
210                 return 0;
211 
212         switch (port[n]) {
213         case SNDRV_AUTO_PORT:
214                 dev_err(dev, "please specify port\n");
215                 return 0;
216         case 0x220:
217                 config[n] |= GALAXY_CONFIG_SBA_220;
218                 break;
219         case 0x240:
220                 config[n] |= GALAXY_CONFIG_SBA_240;
221                 break;
222         case 0x260:
223                 config[n] |= GALAXY_CONFIG_SBA_260;
224                 break;
225         case 0x280:
226                 config[n] |= GALAXY_CONFIG_SBA_280;
227                 break;
228         default:
229                 dev_err(dev, "invalid port %#lx\n", port[n]);
230                 return 0;
231         }
232 
233         switch (wss_port[n]) {
234         case SNDRV_AUTO_PORT:
235                 dev_err(dev,  "please specify wss_port\n");
236                 return 0;
237         case 0x530:
238                 config[n] |= GALAXY_CONFIG_WSS_ENABLE | GALAXY_CONFIG_WSSA_530;
239                 break;
240         case 0x604:
241                 config[n] |= GALAXY_CONFIG_WSS_ENABLE | GALAXY_CONFIG_WSSA_604;
242                 break;
243         case 0xe80:
244                 config[n] |= GALAXY_CONFIG_WSS_ENABLE | GALAXY_CONFIG_WSSA_E80;
245                 break;
246         case 0xf40:
247                 config[n] |= GALAXY_CONFIG_WSS_ENABLE | GALAXY_CONFIG_WSSA_F40;
248                 break;
249         default:
250                 dev_err(dev, "invalid WSS port %#lx\n", wss_port[n]);
251                 return 0;
252         }
253 
254         switch (irq[n]) {
255         case SNDRV_AUTO_IRQ:
256                 dev_err(dev,  "please specify irq\n");
257                 return 0;
258         case 7:
259                 wss_config[n] |= WSS_CONFIG_IRQ_7;
260                 break;
261         case 2:
262                 irq[n] = 9;
263         case 9:
264                 wss_config[n] |= WSS_CONFIG_IRQ_9;
265                 break;
266         case 10:
267                 wss_config[n] |= WSS_CONFIG_IRQ_10;
268                 break;
269         case 11:
270                 wss_config[n] |= WSS_CONFIG_IRQ_11;
271                 break;
272         default:
273                 dev_err(dev, "invalid IRQ %d\n", irq[n]);
274                 return 0;
275         }
276 
277         switch (dma1[n]) {
278         case SNDRV_AUTO_DMA:
279                 dev_err(dev,  "please specify dma1\n");
280                 return 0;
281         case 0:
282                 wss_config[n] |= WSS_CONFIG_DMA_0;
283                 break;
284         case 1:
285                 wss_config[n] |= WSS_CONFIG_DMA_1;
286                 break;
287         case 3:
288                 wss_config[n] |= WSS_CONFIG_DMA_3;
289                 break;
290         default:
291                 dev_err(dev, "invalid playback DMA %d\n", dma1[n]);
292                 return 0;
293         }
294 
295         if (dma2[n] == SNDRV_AUTO_DMA || dma2[n] == dma1[n]) {
296                 dma2[n] = -1;
297                 goto mpu;
298         }
299 
300         wss_config[n] |= WSS_CONFIG_DUPLEX;
301         switch (dma2[n]) {
302         case 0:
303                 break;
304         case 1:
305                 if (dma1[n] == 0)
306                         break;
307         default:
308                 dev_err(dev, "invalid capture DMA %d\n", dma2[n]);
309                 return 0;
310         }
311 
312 mpu:
313         switch (mpu_port[n]) {
314         case SNDRV_AUTO_PORT:
315                 dev_warn(dev, "mpu_port not specified; not using MPU-401\n");
316                 mpu_port[n] = -1;
317                 goto fm;
318         case 0x300:
319                 config[n] |= GALAXY_CONFIG_MPU_ENABLE | GALAXY_CONFIG_MPUA_300;
320                 break;
321         case 0x330:
322                 config[n] |= GALAXY_CONFIG_MPU_ENABLE | GALAXY_CONFIG_MPUA_330;
323                 break;
324         default:
325                 dev_err(dev, "invalid MPU port %#lx\n", mpu_port[n]);
326                 return 0;
327         }
328 
329         switch (mpu_irq[n]) {
330         case SNDRV_AUTO_IRQ:
331                 dev_warn(dev, "mpu_irq not specified: using polling mode\n");
332                 mpu_irq[n] = -1;
333                 break;
334         case 2:
335                 mpu_irq[n] = 9;
336         case 9:
337                 config[n] |= GALAXY_CONFIG_MPUIRQ_2;
338                 break;
339 #ifdef AZT1605
340         case 3:
341                 config[n] |= GALAXY_CONFIG_MPUIRQ_3;
342                 break;
343 #endif
344         case 5:
345                 config[n] |= GALAXY_CONFIG_MPUIRQ_5;
346                 break;
347         case 7:
348                 config[n] |= GALAXY_CONFIG_MPUIRQ_7;
349                 break;
350 #ifdef AZT2316
351         case 10:
352                 config[n] |= GALAXY_CONFIG_MPUIRQ_10;
353                 break;
354 #endif
355         default:
356                 dev_err(dev, "invalid MPU IRQ %d\n", mpu_irq[n]);
357                 return 0;
358         }
359 
360         if (mpu_irq[n] == irq[n]) {
361                 dev_err(dev, "cannot share IRQ between WSS and MPU-401\n");
362                 return 0;
363         }
364 
365 fm:
366         switch (fm_port[n]) {
367         case SNDRV_AUTO_PORT:
368                 dev_warn(dev, "fm_port not specified: not using OPL3\n");
369                 fm_port[n] = -1;
370                 break;
371         case 0x388:
372                 break;
373         default:
374                 dev_err(dev, "illegal FM port %#lx\n", fm_port[n]);
375                 return 0;
376         }
377 
378         config[n] |= GALAXY_CONFIG_GAME_ENABLE;
379         return 1;
380 }
381 
382 static int galaxy_init(struct snd_galaxy *galaxy, u8 *type)
383 {
384         u8 major;
385         u8 minor;
386         int err;
387 
388         err = dsp_reset(galaxy->port);
389         if (err < 0)
390                 return err;
391 
392         err = dsp_get_version(galaxy->port, &major, &minor);
393         if (err < 0)
394                 return err;
395 
396         if (major != GALAXY_DSP_MAJOR || minor != GALAXY_DSP_MINOR)
397                 return -ENODEV;
398 
399         err = dsp_command(galaxy->port, DSP_COMMAND_GALAXY_8);
400         if (err < 0)
401                 return err;
402 
403         err = dsp_command(galaxy->port, GALAXY_COMMAND_GET_TYPE);
404         if (err < 0)
405                 return err;
406 
407         err = dsp_get_byte(galaxy->port, type);
408         if (err < 0)
409                 return err;
410 
411         return 0;
412 }
413 
414 static int galaxy_set_mode(struct snd_galaxy *galaxy, u8 mode)
415 {
416         int err;
417 
418         err = dsp_command(galaxy->port, DSP_COMMAND_GALAXY_9);
419         if (err < 0)
420                 return err;
421 
422         err = dsp_command(galaxy->port, mode);
423         if (err < 0)
424                 return err;
425 
426 #ifdef AZT1605
427         /*
428          * Needed for MPU IRQ on AZT1605, but AZT2316 loses WSS again
429          */
430         err = dsp_reset(galaxy->port);
431         if (err < 0)
432                 return err;
433 #endif
434 
435         return 0;
436 }
437 
438 static void galaxy_set_config(struct snd_galaxy *galaxy, u32 config)
439 {
440         u8 tmp = ioread8(galaxy->config_port + CONFIG_PORT_SET);
441         int i;
442 
443         iowrite8(tmp | 0x80, galaxy->config_port + CONFIG_PORT_SET);
444         for (i = 0; i < GALAXY_CONFIG_SIZE; i++) {
445                 iowrite8(config, galaxy->config_port + i);
446                 config >>= 8;
447         }
448         iowrite8(tmp & 0x7f, galaxy->config_port + CONFIG_PORT_SET);
449         msleep(10);
450 }
451 
452 static void galaxy_config(struct snd_galaxy *galaxy, u32 config)
453 {
454         int i;
455 
456         for (i = GALAXY_CONFIG_SIZE; i; i--) {
457                 u8 tmp = ioread8(galaxy->config_port + i - 1);
458                 galaxy->config = (galaxy->config << 8) | tmp;
459         }
460         config |= galaxy->config & GALAXY_CONFIG_MASK;
461         galaxy_set_config(galaxy, config);
462 }
463 
464 static int galaxy_wss_config(struct snd_galaxy *galaxy, u8 wss_config)
465 {
466         int err;
467 
468         err = wss_detect(galaxy->wss_port);
469         if (err < 0)
470                 return err;
471 
472         wss_set_config(galaxy->wss_port, wss_config);
473 
474         err = galaxy_set_mode(galaxy, GALAXY_MODE_WSS);
475         if (err < 0)
476                 return err;
477 
478         return 0;
479 }
480 
481 static void snd_galaxy_free(struct snd_card *card)
482 {
483         struct snd_galaxy *galaxy = card->private_data;
484 
485         if (galaxy->wss_port) {
486                 wss_set_config(galaxy->wss_port, 0);
487                 ioport_unmap(galaxy->wss_port);
488                 release_and_free_resource(galaxy->res_wss_port);
489         }
490         if (galaxy->config_port) {
491                 galaxy_set_config(galaxy, galaxy->config);
492                 ioport_unmap(galaxy->config_port);
493                 release_and_free_resource(galaxy->res_config_port);
494         }
495         if (galaxy->port) {
496                 ioport_unmap(galaxy->port);
497                 release_and_free_resource(galaxy->res_port);
498         }
499 }
500 
501 static int snd_galaxy_probe(struct device *dev, unsigned int n)
502 {
503         struct snd_galaxy *galaxy;
504         struct snd_wss *chip;
505         struct snd_card *card;
506         u8 type;
507         int err;
508 
509         err = snd_card_create(index[n], id[n], THIS_MODULE, sizeof *galaxy,
510                               &card);
511         if (err < 0)
512                 return err;
513 
514         snd_card_set_dev(card, dev);
515 
516         card->private_free = snd_galaxy_free;
517         galaxy = card->private_data;
518 
519         galaxy->res_port = request_region(port[n], 16, DRV_NAME);
520         if (!galaxy->res_port) {
521                 dev_err(dev, "could not grab ports %#lx-%#lx\n", port[n],
522                         port[n] + 15);
523                 err = -EBUSY;
524                 goto error;
525         }
526         galaxy->port = ioport_map(port[n], 16);
527 
528         err = galaxy_init(galaxy, &type);
529         if (err < 0) {
530                 dev_err(dev, "did not find a Sound Galaxy at %#lx\n", port[n]);
531                 goto error;
532         }
533         dev_info(dev, "Sound Galaxy (type %d) found at %#lx\n", type, port[n]);
534 
535         galaxy->res_config_port = request_region(port[n] + GALAXY_PORT_CONFIG,
536                                                  16, DRV_NAME);
537         if (!galaxy->res_config_port) {
538                 dev_err(dev, "could not grab ports %#lx-%#lx\n",
539                         port[n] + GALAXY_PORT_CONFIG,
540                         port[n] + GALAXY_PORT_CONFIG + 15);
541                 err = -EBUSY;
542                 goto error;
543         }
544         galaxy->config_port = ioport_map(port[n] + GALAXY_PORT_CONFIG, 16);
545 
546         galaxy_config(galaxy, config[n]);
547 
548         galaxy->res_wss_port = request_region(wss_port[n], 4, DRV_NAME);
549         if (!galaxy->res_wss_port)  {
550                 dev_err(dev, "could not grab ports %#lx-%#lx\n", wss_port[n],
551                         wss_port[n] + 3);
552                 err = -EBUSY;
553                 goto error;
554         }
555         galaxy->wss_port = ioport_map(wss_port[n], 4);
556 
557         err = galaxy_wss_config(galaxy, wss_config[n]);
558         if (err < 0) {
559                 dev_err(dev, "could not configure WSS\n");
560                 goto error;
561         }
562 
563         strcpy(card->driver, DRV_NAME);
564         strcpy(card->shortname, DRV_NAME);
565         sprintf(card->longname, "%s at %#lx/%#lx, irq %d, dma %d/%d",
566                 card->shortname, port[n], wss_port[n], irq[n], dma1[n],
567                 dma2[n]);
568 
569         err = snd_wss_create(card, wss_port[n] + 4, -1, irq[n], dma1[n],
570                              dma2[n], WSS_HW_DETECT, 0, &chip);
571         if (err < 0)
572                 goto error;
573 
574         err = snd_wss_pcm(chip, 0, NULL);
575         if (err < 0)
576                 goto error;
577 
578         err = snd_wss_mixer(chip);
579         if (err < 0)
580                 goto error;
581 
582         err = snd_wss_timer(chip, 0, NULL);
583         if (err < 0)
584                 goto error;
585 
586         if (mpu_port[n] >= 0) {
587                 err = snd_mpu401_uart_new(card, 0, MPU401_HW_MPU401,
588                                           mpu_port[n], 0, mpu_irq[n], NULL);
589                 if (err < 0)
590                         goto error;
591         }
592 
593         if (fm_port[n] >= 0) {
594                 struct snd_opl3 *opl3;
595 
596                 err = snd_opl3_create(card, fm_port[n], fm_port[n] + 2,
597                                       OPL3_HW_AUTO, 0, &opl3);
598                 if (err < 0) {
599                         dev_err(dev, "no OPL device at %#lx\n", fm_port[n]);
600                         goto error;
601                 }
602                 err = snd_opl3_timer_new(opl3, 1, 2);
603                 if (err < 0)
604                         goto error;
605 
606                 err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
607                 if (err < 0)
608                         goto error;
609         }
610 
611         err = snd_card_register(card);
612         if (err < 0)
613                 goto error;
614 
615         dev_set_drvdata(dev, card);
616         return 0;
617 
618 error:
619         snd_card_free(card);
620         return err;
621 }
622 
623 static int snd_galaxy_remove(struct device *dev, unsigned int n)
624 {
625         snd_card_free(dev_get_drvdata(dev));
626         dev_set_drvdata(dev, NULL);
627         return 0;
628 }
629 
630 static struct isa_driver snd_galaxy_driver = {
631         .match          = snd_galaxy_match,
632         .probe          = snd_galaxy_probe,
633         .remove         = snd_galaxy_remove,
634 
635         .driver         = {
636                 .name   = DEV_NAME
637         }
638 };
639 
640 static int __init alsa_card_galaxy_init(void)
641 {
642         return isa_register_driver(&snd_galaxy_driver, SNDRV_CARDS);
643 }
644 
645 static void __exit alsa_card_galaxy_exit(void)
646 {
647         isa_unregister_driver(&snd_galaxy_driver);
648 }
649 
650 module_init(alsa_card_galaxy_init);
651 module_exit(alsa_card_galaxy_exit);
652 

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