xref: /openbmc/linux/sound/isa/sc6000.c (revision 94cdda6b)
1 /*
2  *  Driver for Gallant SC-6000 soundcard. This card is also known as
3  *  Audio Excel DSP 16 or Zoltrix AV302.
4  *  These cards use CompuMedia ASC-9308 chip + AD1848 codec.
5  *  SC-6600 and SC-7000 cards are also supported. They are based on
6  *  CompuMedia ASC-9408 chip and CS4231 codec.
7  *
8  *  Copyright (C) 2007 Krzysztof Helt <krzysztof.h1@wp.pl>
9  *
10  *  I don't have documentation for this card. I used the driver
11  *  for OSS/Free included in the kernel source as reference.
12  *
13  *  This program is free software; you can redistribute it and/or modify
14  *  it under the terms of the GNU General Public License as published by
15  *  the Free Software Foundation; either version 2 of the License, or
16  *  (at your option) any later version.
17  *
18  *  This program is distributed in the hope that it will be useful,
19  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
20  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
21  *  GNU General Public License for more details.
22  *
23  *  You should have received a copy of the GNU General Public License
24  *  along with this program; if not, write to the Free Software
25  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
26  */
27 
28 #include <linux/module.h>
29 #include <linux/delay.h>
30 #include <linux/isa.h>
31 #include <linux/io.h>
32 #include <asm/dma.h>
33 #include <sound/core.h>
34 #include <sound/wss.h>
35 #include <sound/opl3.h>
36 #include <sound/mpu401.h>
37 #include <sound/control.h>
38 #define SNDRV_LEGACY_FIND_FREE_IRQ
39 #define SNDRV_LEGACY_FIND_FREE_DMA
40 #include <sound/initval.h>
41 
42 MODULE_AUTHOR("Krzysztof Helt");
43 MODULE_DESCRIPTION("Gallant SC-6000");
44 MODULE_LICENSE("GPL");
45 MODULE_SUPPORTED_DEVICE("{{Gallant, SC-6000},"
46 			"{AudioExcel, Audio Excel DSP 16},"
47 			"{Zoltrix, AV302}}");
48 
49 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
50 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
51 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;	/* Enable this card */
52 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* 0x220, 0x240 */
53 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5, 7, 9, 10, 11 */
54 static long mss_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* 0x530, 0xe80 */
55 static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
56 						/* 0x300, 0x310, 0x320, 0x330 */
57 static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5, 7, 9, 10, 0 */
58 static int dma[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0, 1, 3 */
59 static bool joystick[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = false };
60 
61 module_param_array(index, int, NULL, 0444);
62 MODULE_PARM_DESC(index, "Index value for sc-6000 based soundcard.");
63 module_param_array(id, charp, NULL, 0444);
64 MODULE_PARM_DESC(id, "ID string for sc-6000 based soundcard.");
65 module_param_array(enable, bool, NULL, 0444);
66 MODULE_PARM_DESC(enable, "Enable sc-6000 based soundcard.");
67 module_param_array(port, long, NULL, 0444);
68 MODULE_PARM_DESC(port, "Port # for sc-6000 driver.");
69 module_param_array(mss_port, long, NULL, 0444);
70 MODULE_PARM_DESC(mss_port, "MSS Port # for sc-6000 driver.");
71 module_param_array(mpu_port, long, NULL, 0444);
72 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for sc-6000 driver.");
73 module_param_array(irq, int, NULL, 0444);
74 MODULE_PARM_DESC(irq, "IRQ # for sc-6000 driver.");
75 module_param_array(mpu_irq, int, NULL, 0444);
76 MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for sc-6000 driver.");
77 module_param_array(dma, int, NULL, 0444);
78 MODULE_PARM_DESC(dma, "DMA # for sc-6000 driver.");
79 module_param_array(joystick, bool, NULL, 0444);
80 MODULE_PARM_DESC(joystick, "Enable gameport.");
81 
82 /*
83  * Commands of SC6000's DSP (SBPRO+special).
84  * Some of them are COMMAND_xx, in the future they may change.
85  */
86 #define WRITE_MDIRQ_CFG	0x50	/* Set M&I&DRQ mask (the real config)	*/
87 #define COMMAND_52	0x52	/*					*/
88 #define READ_HARD_CFG	0x58	/* Read Hardware Config (I/O base etc)	*/
89 #define COMMAND_5C	0x5c	/*					*/
90 #define COMMAND_60	0x60	/*					*/
91 #define COMMAND_66	0x66	/*					*/
92 #define COMMAND_6C	0x6c	/*					*/
93 #define COMMAND_6E	0x6e	/*					*/
94 #define COMMAND_88	0x88	/* Unknown command 			*/
95 #define DSP_INIT_MSS	0x8c	/* Enable Microsoft Sound System mode	*/
96 #define COMMAND_C5	0xc5	/*					*/
97 #define GET_DSP_VERSION	0xe1	/* Get DSP Version			*/
98 #define GET_DSP_COPYRIGHT 0xe3	/* Get DSP Copyright			*/
99 
100 /*
101  * Offsets of SC6000 DSP I/O ports. The offset is added to base I/O port
102  * to have the actual I/O port.
103  * Register permissions are:
104  * (wo) == Write Only
105  * (ro) == Read  Only
106  * (w-) == Write
107  * (r-) == Read
108  */
109 #define DSP_RESET	0x06	/* offset of DSP RESET		(wo) */
110 #define DSP_READ	0x0a	/* offset of DSP READ		(ro) */
111 #define DSP_WRITE	0x0c	/* offset of DSP WRITE		(w-) */
112 #define DSP_COMMAND	0x0c	/* offset of DSP COMMAND	(w-) */
113 #define DSP_STATUS	0x0c	/* offset of DSP STATUS		(r-) */
114 #define DSP_DATAVAIL	0x0e	/* offset of DSP DATA AVAILABLE	(ro) */
115 
116 #define PFX "sc6000: "
117 #define DRV_NAME "SC-6000"
118 
119 /* hardware dependent functions */
120 
121 /*
122  * sc6000_irq_to_softcfg - Decode irq number into cfg code.
123  */
124 static unsigned char sc6000_irq_to_softcfg(int irq)
125 {
126 	unsigned char val = 0;
127 
128 	switch (irq) {
129 	case 5:
130 		val = 0x28;
131 		break;
132 	case 7:
133 		val = 0x8;
134 		break;
135 	case 9:
136 		val = 0x10;
137 		break;
138 	case 10:
139 		val = 0x18;
140 		break;
141 	case 11:
142 		val = 0x20;
143 		break;
144 	default:
145 		break;
146 	}
147 	return val;
148 }
149 
150 /*
151  * sc6000_dma_to_softcfg - Decode dma number into cfg code.
152  */
153 static unsigned char sc6000_dma_to_softcfg(int dma)
154 {
155 	unsigned char val = 0;
156 
157 	switch (dma) {
158 	case 0:
159 		val = 1;
160 		break;
161 	case 1:
162 		val = 2;
163 		break;
164 	case 3:
165 		val = 3;
166 		break;
167 	default:
168 		break;
169 	}
170 	return val;
171 }
172 
173 /*
174  * sc6000_mpu_irq_to_softcfg - Decode MPU-401 irq number into cfg code.
175  */
176 static unsigned char sc6000_mpu_irq_to_softcfg(int mpu_irq)
177 {
178 	unsigned char val = 0;
179 
180 	switch (mpu_irq) {
181 	case 5:
182 		val = 4;
183 		break;
184 	case 7:
185 		val = 0x44;
186 		break;
187 	case 9:
188 		val = 0x84;
189 		break;
190 	case 10:
191 		val = 0xc4;
192 		break;
193 	default:
194 		break;
195 	}
196 	return val;
197 }
198 
199 static int sc6000_wait_data(char __iomem *vport)
200 {
201 	int loop = 1000;
202 	unsigned char val = 0;
203 
204 	do {
205 		val = ioread8(vport + DSP_DATAVAIL);
206 		if (val & 0x80)
207 			return 0;
208 		cpu_relax();
209 	} while (loop--);
210 
211 	return -EAGAIN;
212 }
213 
214 static int sc6000_read(char __iomem *vport)
215 {
216 	if (sc6000_wait_data(vport))
217 		return -EBUSY;
218 
219 	return ioread8(vport + DSP_READ);
220 
221 }
222 
223 static int sc6000_write(char __iomem *vport, int cmd)
224 {
225 	unsigned char val;
226 	int loop = 500000;
227 
228 	do {
229 		val = ioread8(vport + DSP_STATUS);
230 		/*
231 		 * DSP ready to receive data if bit 7 of val == 0
232 		 */
233 		if (!(val & 0x80)) {
234 			iowrite8(cmd, vport + DSP_COMMAND);
235 			return 0;
236 		}
237 		cpu_relax();
238 	} while (loop--);
239 
240 	snd_printk(KERN_ERR "DSP Command (0x%x) timeout.\n", cmd);
241 
242 	return -EIO;
243 }
244 
245 static int sc6000_dsp_get_answer(char __iomem *vport, int command,
246 				 char *data, int data_len)
247 {
248 	int len = 0;
249 
250 	if (sc6000_write(vport, command)) {
251 		snd_printk(KERN_ERR "CMD 0x%x: failed!\n", command);
252 		return -EIO;
253 	}
254 
255 	do {
256 		int val = sc6000_read(vport);
257 
258 		if (val < 0)
259 			break;
260 
261 		data[len++] = val;
262 
263 	} while (len < data_len);
264 
265 	/*
266 	 * If no more data available, return to the caller, no error if len>0.
267 	 * We have no other way to know when the string is finished.
268 	 */
269 	return len ? len : -EIO;
270 }
271 
272 static int sc6000_dsp_reset(char __iomem *vport)
273 {
274 	iowrite8(1, vport + DSP_RESET);
275 	udelay(10);
276 	iowrite8(0, vport + DSP_RESET);
277 	udelay(20);
278 	if (sc6000_read(vport) == 0xaa)
279 		return 0;
280 	return -ENODEV;
281 }
282 
283 /* detection and initialization */
284 static int sc6000_hw_cfg_write(char __iomem *vport, const int *cfg)
285 {
286 	if (sc6000_write(vport, COMMAND_6C) < 0) {
287 		snd_printk(KERN_WARNING "CMD 0x%x: failed!\n", COMMAND_6C);
288 		return -EIO;
289 	}
290 	if (sc6000_write(vport, COMMAND_5C) < 0) {
291 		snd_printk(KERN_ERR "CMD 0x%x: failed!\n", COMMAND_5C);
292 		return -EIO;
293 	}
294 	if (sc6000_write(vport, cfg[0]) < 0) {
295 		snd_printk(KERN_ERR "DATA 0x%x: failed!\n", cfg[0]);
296 		return -EIO;
297 	}
298 	if (sc6000_write(vport, cfg[1]) < 0) {
299 		snd_printk(KERN_ERR "DATA 0x%x: failed!\n", cfg[1]);
300 		return -EIO;
301 	}
302 	if (sc6000_write(vport, COMMAND_C5) < 0) {
303 		snd_printk(KERN_ERR "CMD 0x%x: failed!\n", COMMAND_C5);
304 		return -EIO;
305 	}
306 
307 	return 0;
308 }
309 
310 static int sc6000_cfg_write(char __iomem *vport, unsigned char softcfg)
311 {
312 
313 	if (sc6000_write(vport, WRITE_MDIRQ_CFG)) {
314 		snd_printk(KERN_ERR "CMD 0x%x: failed!\n", WRITE_MDIRQ_CFG);
315 		return -EIO;
316 	}
317 	if (sc6000_write(vport, softcfg)) {
318 		snd_printk(KERN_ERR "sc6000_cfg_write: failed!\n");
319 		return -EIO;
320 	}
321 	return 0;
322 }
323 
324 static int sc6000_setup_board(char __iomem *vport, int config)
325 {
326 	int loop = 10;
327 
328 	do {
329 		if (sc6000_write(vport, COMMAND_88)) {
330 			snd_printk(KERN_ERR "CMD 0x%x: failed!\n",
331 				   COMMAND_88);
332 			return -EIO;
333 		}
334 	} while ((sc6000_wait_data(vport) < 0) && loop--);
335 
336 	if (sc6000_read(vport) < 0) {
337 		snd_printk(KERN_ERR "sc6000_read after CMD 0x%x: failed\n",
338 			   COMMAND_88);
339 		return -EIO;
340 	}
341 
342 	if (sc6000_cfg_write(vport, config))
343 		return -ENODEV;
344 
345 	return 0;
346 }
347 
348 static int sc6000_init_mss(char __iomem *vport, int config,
349 			   char __iomem *vmss_port, int mss_config)
350 {
351 	if (sc6000_write(vport, DSP_INIT_MSS)) {
352 		snd_printk(KERN_ERR "sc6000_init_mss [0x%x]: failed!\n",
353 			   DSP_INIT_MSS);
354 		return -EIO;
355 	}
356 
357 	msleep(10);
358 
359 	if (sc6000_cfg_write(vport, config))
360 		return -EIO;
361 
362 	iowrite8(mss_config, vmss_port);
363 
364 	return 0;
365 }
366 
367 static void sc6000_hw_cfg_encode(char __iomem *vport, int *cfg,
368 				 long xport, long xmpu,
369 				 long xmss_port, int joystick)
370 {
371 	cfg[0] = 0;
372 	cfg[1] = 0;
373 	if (xport == 0x240)
374 		cfg[0] |= 1;
375 	if (xmpu != SNDRV_AUTO_PORT) {
376 		cfg[0] |= (xmpu & 0x30) >> 2;
377 		cfg[1] |= 0x20;
378 	}
379 	if (xmss_port == 0xe80)
380 		cfg[0] |= 0x10;
381 	cfg[0] |= 0x40;		/* always set */
382 	if (!joystick)
383 		cfg[0] |= 0x02;
384 	cfg[1] |= 0x80;		/* enable WSS system */
385 	cfg[1] &= ~0x40;	/* disable IDE */
386 	snd_printd("hw cfg %x, %x\n", cfg[0], cfg[1]);
387 }
388 
389 static int sc6000_init_board(char __iomem *vport,
390 			     char __iomem *vmss_port, int dev)
391 {
392 	char answer[15];
393 	char version[2];
394 	int mss_config = sc6000_irq_to_softcfg(irq[dev]) |
395 			 sc6000_dma_to_softcfg(dma[dev]);
396 	int config = mss_config |
397 		     sc6000_mpu_irq_to_softcfg(mpu_irq[dev]);
398 	int err;
399 	int old = 0;
400 
401 	err = sc6000_dsp_reset(vport);
402 	if (err < 0) {
403 		snd_printk(KERN_ERR "sc6000_dsp_reset: failed!\n");
404 		return err;
405 	}
406 
407 	memset(answer, 0, sizeof(answer));
408 	err = sc6000_dsp_get_answer(vport, GET_DSP_COPYRIGHT, answer, 15);
409 	if (err <= 0) {
410 		snd_printk(KERN_ERR "sc6000_dsp_copyright: failed!\n");
411 		return -ENODEV;
412 	}
413 	/*
414 	 * My SC-6000 card return "SC-6000" in DSPCopyright, so
415 	 * if we have something different, we have to be warned.
416 	 */
417 	if (strncmp("SC-6000", answer, 7))
418 		snd_printk(KERN_WARNING "Warning: non SC-6000 audio card!\n");
419 
420 	if (sc6000_dsp_get_answer(vport, GET_DSP_VERSION, version, 2) < 2) {
421 		snd_printk(KERN_ERR "sc6000_dsp_version: failed!\n");
422 		return -ENODEV;
423 	}
424 	printk(KERN_INFO PFX "Detected model: %s, DSP version %d.%d\n",
425 		answer, version[0], version[1]);
426 
427 	/* set configuration */
428 	sc6000_write(vport, COMMAND_5C);
429 	if (sc6000_read(vport) < 0)
430 		old = 1;
431 
432 	if (!old) {
433 		int cfg[2];
434 		sc6000_hw_cfg_encode(vport, &cfg[0], port[dev], mpu_port[dev],
435 				     mss_port[dev], joystick[dev]);
436 		if (sc6000_hw_cfg_write(vport, cfg) < 0) {
437 			snd_printk(KERN_ERR "sc6000_hw_cfg_write: failed!\n");
438 			return -EIO;
439 		}
440 	}
441 	err = sc6000_setup_board(vport, config);
442 	if (err < 0) {
443 		snd_printk(KERN_ERR "sc6000_setup_board: failed!\n");
444 		return -ENODEV;
445 	}
446 
447 	sc6000_dsp_reset(vport);
448 
449 	if (!old) {
450 		sc6000_write(vport, COMMAND_60);
451 		sc6000_write(vport, 0x02);
452 		sc6000_dsp_reset(vport);
453 	}
454 
455 	err = sc6000_setup_board(vport, config);
456 	if (err < 0) {
457 		snd_printk(KERN_ERR "sc6000_setup_board: failed!\n");
458 		return -ENODEV;
459 	}
460 	err = sc6000_init_mss(vport, config, vmss_port, mss_config);
461 	if (err < 0) {
462 		snd_printk(KERN_ERR "Cannot initialize "
463 			   "Microsoft Sound System mode.\n");
464 		return -ENODEV;
465 	}
466 
467 	return 0;
468 }
469 
470 static int snd_sc6000_mixer(struct snd_wss *chip)
471 {
472 	struct snd_card *card = chip->card;
473 	struct snd_ctl_elem_id id1, id2;
474 	int err;
475 
476 	memset(&id1, 0, sizeof(id1));
477 	memset(&id2, 0, sizeof(id2));
478 	id1.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
479 	id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
480 	/* reassign AUX0 to FM */
481 	strcpy(id1.name, "Aux Playback Switch");
482 	strcpy(id2.name, "FM Playback Switch");
483 	err = snd_ctl_rename_id(card, &id1, &id2);
484 	if (err < 0)
485 		return err;
486 	strcpy(id1.name, "Aux Playback Volume");
487 	strcpy(id2.name, "FM Playback Volume");
488 	err = snd_ctl_rename_id(card, &id1, &id2);
489 	if (err < 0)
490 		return err;
491 	/* reassign AUX1 to CD */
492 	strcpy(id1.name, "Aux Playback Switch"); id1.index = 1;
493 	strcpy(id2.name, "CD Playback Switch");
494 	err = snd_ctl_rename_id(card, &id1, &id2);
495 	if (err < 0)
496 		return err;
497 	strcpy(id1.name, "Aux Playback Volume");
498 	strcpy(id2.name, "CD Playback Volume");
499 	err = snd_ctl_rename_id(card, &id1, &id2);
500 	if (err < 0)
501 		return err;
502 	return 0;
503 }
504 
505 static int snd_sc6000_match(struct device *devptr, unsigned int dev)
506 {
507 	if (!enable[dev])
508 		return 0;
509 	if (port[dev] == SNDRV_AUTO_PORT) {
510 		printk(KERN_ERR PFX "specify IO port\n");
511 		return 0;
512 	}
513 	if (mss_port[dev] == SNDRV_AUTO_PORT) {
514 		printk(KERN_ERR PFX "specify MSS port\n");
515 		return 0;
516 	}
517 	if (port[dev] != 0x220 && port[dev] != 0x240) {
518 		printk(KERN_ERR PFX "Port must be 0x220 or 0x240\n");
519 		return 0;
520 	}
521 	if (mss_port[dev] != 0x530 && mss_port[dev] != 0xe80) {
522 		printk(KERN_ERR PFX "MSS port must be 0x530 or 0xe80\n");
523 		return 0;
524 	}
525 	if (irq[dev] != SNDRV_AUTO_IRQ && !sc6000_irq_to_softcfg(irq[dev])) {
526 		printk(KERN_ERR PFX "invalid IRQ %d\n", irq[dev]);
527 		return 0;
528 	}
529 	if (dma[dev] != SNDRV_AUTO_DMA && !sc6000_dma_to_softcfg(dma[dev])) {
530 		printk(KERN_ERR PFX "invalid DMA %d\n", dma[dev]);
531 		return 0;
532 	}
533 	if (mpu_port[dev] != SNDRV_AUTO_PORT &&
534 	    (mpu_port[dev] & ~0x30L) != 0x300) {
535 		printk(KERN_ERR PFX "invalid MPU-401 port %lx\n",
536 			mpu_port[dev]);
537 		return 0;
538 	}
539 	if (mpu_port[dev] != SNDRV_AUTO_PORT &&
540 	    mpu_irq[dev] != SNDRV_AUTO_IRQ && mpu_irq[dev] != 0 &&
541 	    !sc6000_mpu_irq_to_softcfg(mpu_irq[dev])) {
542 		printk(KERN_ERR PFX "invalid MPU-401 IRQ %d\n", mpu_irq[dev]);
543 		return 0;
544 	}
545 	return 1;
546 }
547 
548 static int snd_sc6000_probe(struct device *devptr, unsigned int dev)
549 {
550 	static int possible_irqs[] = { 5, 7, 9, 10, 11, -1 };
551 	static int possible_dmas[] = { 1, 3, 0, -1 };
552 	int err;
553 	int xirq = irq[dev];
554 	int xdma = dma[dev];
555 	struct snd_card *card;
556 	struct snd_wss *chip;
557 	struct snd_opl3 *opl3;
558 	char __iomem **vport;
559 	char __iomem *vmss_port;
560 
561 
562 	err = snd_card_new(devptr, index[dev], id[dev], THIS_MODULE,
563 			   sizeof(vport), &card);
564 	if (err < 0)
565 		return err;
566 
567 	vport = card->private_data;
568 	if (xirq == SNDRV_AUTO_IRQ) {
569 		xirq = snd_legacy_find_free_irq(possible_irqs);
570 		if (xirq < 0) {
571 			snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
572 			err = -EBUSY;
573 			goto err_exit;
574 		}
575 	}
576 
577 	if (xdma == SNDRV_AUTO_DMA) {
578 		xdma = snd_legacy_find_free_dma(possible_dmas);
579 		if (xdma < 0) {
580 			snd_printk(KERN_ERR PFX "unable to find a free DMA\n");
581 			err = -EBUSY;
582 			goto err_exit;
583 		}
584 	}
585 
586 	if (!request_region(port[dev], 0x10, DRV_NAME)) {
587 		snd_printk(KERN_ERR PFX
588 			   "I/O port region is already in use.\n");
589 		err = -EBUSY;
590 		goto err_exit;
591 	}
592 	*vport = devm_ioport_map(devptr, port[dev], 0x10);
593 	if (*vport == NULL) {
594 		snd_printk(KERN_ERR PFX
595 			   "I/O port cannot be iomaped.\n");
596 		err = -EBUSY;
597 		goto err_unmap1;
598 	}
599 
600 	/* to make it marked as used */
601 	if (!request_region(mss_port[dev], 4, DRV_NAME)) {
602 		snd_printk(KERN_ERR PFX
603 			   "SC-6000 port I/O port region is already in use.\n");
604 		err = -EBUSY;
605 		goto err_unmap1;
606 	}
607 	vmss_port = devm_ioport_map(devptr, mss_port[dev], 4);
608 	if (!vmss_port) {
609 		snd_printk(KERN_ERR PFX
610 			   "MSS port I/O cannot be iomaped.\n");
611 		err = -EBUSY;
612 		goto err_unmap2;
613 	}
614 
615 	snd_printd("Initializing BASE[0x%lx] IRQ[%d] DMA[%d] MIRQ[%d]\n",
616 		   port[dev], xirq, xdma,
617 		   mpu_irq[dev] == SNDRV_AUTO_IRQ ? 0 : mpu_irq[dev]);
618 
619 	err = sc6000_init_board(*vport, vmss_port, dev);
620 	if (err < 0)
621 		goto err_unmap2;
622 
623 	err = snd_wss_create(card, mss_port[dev] + 4,  -1, xirq, xdma, -1,
624 			     WSS_HW_DETECT, 0, &chip);
625 	if (err < 0)
626 		goto err_unmap2;
627 
628 	err = snd_wss_pcm(chip, 0);
629 	if (err < 0) {
630 		snd_printk(KERN_ERR PFX
631 			   "error creating new WSS PCM device\n");
632 		goto err_unmap2;
633 	}
634 	err = snd_wss_mixer(chip);
635 	if (err < 0) {
636 		snd_printk(KERN_ERR PFX "error creating new WSS mixer\n");
637 		goto err_unmap2;
638 	}
639 	err = snd_sc6000_mixer(chip);
640 	if (err < 0) {
641 		snd_printk(KERN_ERR PFX "the mixer rewrite failed\n");
642 		goto err_unmap2;
643 	}
644 	if (snd_opl3_create(card,
645 			    0x388, 0x388 + 2,
646 			    OPL3_HW_AUTO, 0, &opl3) < 0) {
647 		snd_printk(KERN_ERR PFX "no OPL device at 0x%x-0x%x ?\n",
648 			   0x388, 0x388 + 2);
649 	} else {
650 		err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
651 		if (err < 0)
652 			goto err_unmap2;
653 	}
654 
655 	if (mpu_port[dev] != SNDRV_AUTO_PORT) {
656 		if (mpu_irq[dev] == SNDRV_AUTO_IRQ)
657 			mpu_irq[dev] = -1;
658 		if (snd_mpu401_uart_new(card, 0,
659 					MPU401_HW_MPU401,
660 					mpu_port[dev], 0,
661 					mpu_irq[dev], NULL) < 0)
662 			snd_printk(KERN_ERR "no MPU-401 device at 0x%lx ?\n",
663 					mpu_port[dev]);
664 	}
665 
666 	strcpy(card->driver, DRV_NAME);
667 	strcpy(card->shortname, "SC-6000");
668 	sprintf(card->longname, "Gallant SC-6000 at 0x%lx, irq %d, dma %d",
669 		mss_port[dev], xirq, xdma);
670 
671 	err = snd_card_register(card);
672 	if (err < 0)
673 		goto err_unmap2;
674 
675 	dev_set_drvdata(devptr, card);
676 	return 0;
677 
678 err_unmap2:
679 	sc6000_setup_board(*vport, 0);
680 	release_region(mss_port[dev], 4);
681 err_unmap1:
682 	release_region(port[dev], 0x10);
683 err_exit:
684 	snd_card_free(card);
685 	return err;
686 }
687 
688 static int snd_sc6000_remove(struct device *devptr, unsigned int dev)
689 {
690 	struct snd_card *card = dev_get_drvdata(devptr);
691 	char __iomem **vport = card->private_data;
692 
693 	if (sc6000_setup_board(*vport, 0) < 0)
694 		snd_printk(KERN_WARNING "sc6000_setup_board failed on exit!\n");
695 
696 	release_region(port[dev], 0x10);
697 	release_region(mss_port[dev], 4);
698 
699 	snd_card_free(card);
700 	return 0;
701 }
702 
703 static struct isa_driver snd_sc6000_driver = {
704 	.match		= snd_sc6000_match,
705 	.probe		= snd_sc6000_probe,
706 	.remove		= snd_sc6000_remove,
707 	/* FIXME: suspend/resume */
708 	.driver		= {
709 		.name	= DRV_NAME,
710 	},
711 };
712 
713 
714 static int __init alsa_card_sc6000_init(void)
715 {
716 	return isa_register_driver(&snd_sc6000_driver, SNDRV_CARDS);
717 }
718 
719 static void __exit alsa_card_sc6000_exit(void)
720 {
721 	isa_unregister_driver(&snd_sc6000_driver);
722 }
723 
724 module_init(alsa_card_sc6000_init)
725 module_exit(alsa_card_sc6000_exit)
726