1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 *  Driver for Gallant SC-6000 soundcard. This card is also known as
4 *  Audio Excel DSP 16 or Zoltrix AV302.
5 *  These cards use CompuMedia ASC-9308 chip + AD1848 codec.
6 *  SC-6600 and SC-7000 cards are also supported. They are based on
7 *  CompuMedia ASC-9408 chip and CS4231 codec.
8 *
9 *  Copyright (C) 2007 Krzysztof Helt <krzysztof.h1@wp.pl>
10 *
11 *  I don't have documentation for this card. I used the driver
12 *  for OSS/Free included in the kernel source as reference.
13 */
14
15#include <linux/module.h>
16#include <linux/delay.h>
17#include <linux/isa.h>
18#include <linux/io.h>
19#include <asm/dma.h>
20#include <sound/core.h>
21#include <sound/wss.h>
22#include <sound/opl3.h>
23#include <sound/mpu401.h>
24#include <sound/control.h>
25#define SNDRV_LEGACY_FIND_FREE_IRQ
26#define SNDRV_LEGACY_FIND_FREE_DMA
27#include <sound/initval.h>
28
29MODULE_AUTHOR("Krzysztof Helt");
30MODULE_DESCRIPTION("Gallant SC-6000");
31MODULE_LICENSE("GPL");
32
33static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
34static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
35static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;	/* Enable this card */
36static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* 0x220, 0x240 */
37static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5, 7, 9, 10, 11 */
38static long mss_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* 0x530, 0xe80 */
39static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
40						/* 0x300, 0x310, 0x320, 0x330 */
41static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5, 7, 9, 10, 0 */
42static int dma[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0, 1, 3 */
43static bool joystick[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = false };
44
45module_param_array(index, int, NULL, 0444);
46MODULE_PARM_DESC(index, "Index value for sc-6000 based soundcard.");
47module_param_array(id, charp, NULL, 0444);
48MODULE_PARM_DESC(id, "ID string for sc-6000 based soundcard.");
49module_param_array(enable, bool, NULL, 0444);
50MODULE_PARM_DESC(enable, "Enable sc-6000 based soundcard.");
51module_param_hw_array(port, long, ioport, NULL, 0444);
52MODULE_PARM_DESC(port, "Port # for sc-6000 driver.");
53module_param_hw_array(mss_port, long, ioport, NULL, 0444);
54MODULE_PARM_DESC(mss_port, "MSS Port # for sc-6000 driver.");
55module_param_hw_array(mpu_port, long, ioport, NULL, 0444);
56MODULE_PARM_DESC(mpu_port, "MPU-401 port # for sc-6000 driver.");
57module_param_hw_array(irq, int, irq, NULL, 0444);
58MODULE_PARM_DESC(irq, "IRQ # for sc-6000 driver.");
59module_param_hw_array(mpu_irq, int, irq, NULL, 0444);
60MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for sc-6000 driver.");
61module_param_hw_array(dma, int, dma, NULL, 0444);
62MODULE_PARM_DESC(dma, "DMA # for sc-6000 driver.");
63module_param_array(joystick, bool, NULL, 0444);
64MODULE_PARM_DESC(joystick, "Enable gameport.");
65
66/*
67 * Commands of SC6000's DSP (SBPRO+special).
68 * Some of them are COMMAND_xx, in the future they may change.
69 */
70#define WRITE_MDIRQ_CFG	0x50	/* Set M&I&DRQ mask (the real config)	*/
71#define COMMAND_52	0x52	/*					*/
72#define READ_HARD_CFG	0x58	/* Read Hardware Config (I/O base etc)	*/
73#define COMMAND_5C	0x5c	/*					*/
74#define COMMAND_60	0x60	/*					*/
75#define COMMAND_66	0x66	/*					*/
76#define COMMAND_6C	0x6c	/*					*/
77#define COMMAND_6E	0x6e	/*					*/
78#define COMMAND_88	0x88	/* Unknown command 			*/
79#define DSP_INIT_MSS	0x8c	/* Enable Microsoft Sound System mode	*/
80#define COMMAND_C5	0xc5	/*					*/
81#define GET_DSP_VERSION	0xe1	/* Get DSP Version			*/
82#define GET_DSP_COPYRIGHT 0xe3	/* Get DSP Copyright			*/
83
84/*
85 * Offsets of SC6000 DSP I/O ports. The offset is added to base I/O port
86 * to have the actual I/O port.
87 * Register permissions are:
88 * (wo) == Write Only
89 * (ro) == Read  Only
90 * (w-) == Write
91 * (r-) == Read
92 */
93#define DSP_RESET	0x06	/* offset of DSP RESET		(wo) */
94#define DSP_READ	0x0a	/* offset of DSP READ		(ro) */
95#define DSP_WRITE	0x0c	/* offset of DSP WRITE		(w-) */
96#define DSP_COMMAND	0x0c	/* offset of DSP COMMAND	(w-) */
97#define DSP_STATUS	0x0c	/* offset of DSP STATUS		(r-) */
98#define DSP_DATAVAIL	0x0e	/* offset of DSP DATA AVAILABLE	(ro) */
99
100#define PFX "sc6000: "
101#define DRV_NAME "SC-6000"
102
103/* hardware dependent functions */
104
105/*
106 * sc6000_irq_to_softcfg - Decode irq number into cfg code.
107 */
108static unsigned char sc6000_irq_to_softcfg(int irq)
109{
110	unsigned char val = 0;
111
112	switch (irq) {
113	case 5:
114		val = 0x28;
115		break;
116	case 7:
117		val = 0x8;
118		break;
119	case 9:
120		val = 0x10;
121		break;
122	case 10:
123		val = 0x18;
124		break;
125	case 11:
126		val = 0x20;
127		break;
128	default:
129		break;
130	}
131	return val;
132}
133
134/*
135 * sc6000_dma_to_softcfg - Decode dma number into cfg code.
136 */
137static unsigned char sc6000_dma_to_softcfg(int dma)
138{
139	unsigned char val = 0;
140
141	switch (dma) {
142	case 0:
143		val = 1;
144		break;
145	case 1:
146		val = 2;
147		break;
148	case 3:
149		val = 3;
150		break;
151	default:
152		break;
153	}
154	return val;
155}
156
157/*
158 * sc6000_mpu_irq_to_softcfg - Decode MPU-401 irq number into cfg code.
159 */
160static unsigned char sc6000_mpu_irq_to_softcfg(int mpu_irq)
161{
162	unsigned char val = 0;
163
164	switch (mpu_irq) {
165	case 5:
166		val = 4;
167		break;
168	case 7:
169		val = 0x44;
170		break;
171	case 9:
172		val = 0x84;
173		break;
174	case 10:
175		val = 0xc4;
176		break;
177	default:
178		break;
179	}
180	return val;
181}
182
183static int sc6000_wait_data(char __iomem *vport)
184{
185	int loop = 1000;
186	unsigned char val = 0;
187
188	do {
189		val = ioread8(vport + DSP_DATAVAIL);
190		if (val & 0x80)
191			return 0;
192		cpu_relax();
193	} while (loop--);
194
195	return -EAGAIN;
196}
197
198static int sc6000_read(char __iomem *vport)
199{
200	if (sc6000_wait_data(vport))
201		return -EBUSY;
202
203	return ioread8(vport + DSP_READ);
204
205}
206
207static int sc6000_write(char __iomem *vport, int cmd)
208{
209	unsigned char val;
210	int loop = 500000;
211
212	do {
213		val = ioread8(vport + DSP_STATUS);
214		/*
215		 * DSP ready to receive data if bit 7 of val == 0
216		 */
217		if (!(val & 0x80)) {
218			iowrite8(cmd, vport + DSP_COMMAND);
219			return 0;
220		}
221		cpu_relax();
222	} while (loop--);
223
224	snd_printk(KERN_ERR "DSP Command (0x%x) timeout.\n", cmd);
225
226	return -EIO;
227}
228
229static int sc6000_dsp_get_answer(char __iomem *vport, int command,
230				 char *data, int data_len)
231{
232	int len = 0;
233
234	if (sc6000_write(vport, command)) {
235		snd_printk(KERN_ERR "CMD 0x%x: failed!\n", command);
236		return -EIO;
237	}
238
239	do {
240		int val = sc6000_read(vport);
241
242		if (val < 0)
243			break;
244
245		data[len++] = val;
246
247	} while (len < data_len);
248
249	/*
250	 * If no more data available, return to the caller, no error if len>0.
251	 * We have no other way to know when the string is finished.
252	 */
253	return len ? len : -EIO;
254}
255
256static int sc6000_dsp_reset(char __iomem *vport)
257{
258	iowrite8(1, vport + DSP_RESET);
259	udelay(10);
260	iowrite8(0, vport + DSP_RESET);
261	udelay(20);
262	if (sc6000_read(vport) == 0xaa)
263		return 0;
264	return -ENODEV;
265}
266
267/* detection and initialization */
268static int sc6000_hw_cfg_write(char __iomem *vport, const int *cfg)
269{
270	if (sc6000_write(vport, COMMAND_6C) < 0) {
271		snd_printk(KERN_WARNING "CMD 0x%x: failed!\n", COMMAND_6C);
272		return -EIO;
273	}
274	if (sc6000_write(vport, COMMAND_5C) < 0) {
275		snd_printk(KERN_ERR "CMD 0x%x: failed!\n", COMMAND_5C);
276		return -EIO;
277	}
278	if (sc6000_write(vport, cfg[0]) < 0) {
279		snd_printk(KERN_ERR "DATA 0x%x: failed!\n", cfg[0]);
280		return -EIO;
281	}
282	if (sc6000_write(vport, cfg[1]) < 0) {
283		snd_printk(KERN_ERR "DATA 0x%x: failed!\n", cfg[1]);
284		return -EIO;
285	}
286	if (sc6000_write(vport, COMMAND_C5) < 0) {
287		snd_printk(KERN_ERR "CMD 0x%x: failed!\n", COMMAND_C5);
288		return -EIO;
289	}
290
291	return 0;
292}
293
294static int sc6000_cfg_write(char __iomem *vport, unsigned char softcfg)
295{
296
297	if (sc6000_write(vport, WRITE_MDIRQ_CFG)) {
298		snd_printk(KERN_ERR "CMD 0x%x: failed!\n", WRITE_MDIRQ_CFG);
299		return -EIO;
300	}
301	if (sc6000_write(vport, softcfg)) {
302		snd_printk(KERN_ERR "sc6000_cfg_write: failed!\n");
303		return -EIO;
304	}
305	return 0;
306}
307
308static int sc6000_setup_board(char __iomem *vport, int config)
309{
310	int loop = 10;
311
312	do {
313		if (sc6000_write(vport, COMMAND_88)) {
314			snd_printk(KERN_ERR "CMD 0x%x: failed!\n",
315				   COMMAND_88);
316			return -EIO;
317		}
318	} while ((sc6000_wait_data(vport) < 0) && loop--);
319
320	if (sc6000_read(vport) < 0) {
321		snd_printk(KERN_ERR "sc6000_read after CMD 0x%x: failed\n",
322			   COMMAND_88);
323		return -EIO;
324	}
325
326	if (sc6000_cfg_write(vport, config))
327		return -ENODEV;
328
329	return 0;
330}
331
332static int sc6000_init_mss(char __iomem *vport, int config,
333			   char __iomem *vmss_port, int mss_config)
334{
335	if (sc6000_write(vport, DSP_INIT_MSS)) {
336		snd_printk(KERN_ERR "sc6000_init_mss [0x%x]: failed!\n",
337			   DSP_INIT_MSS);
338		return -EIO;
339	}
340
341	msleep(10);
342
343	if (sc6000_cfg_write(vport, config))
344		return -EIO;
345
346	iowrite8(mss_config, vmss_port);
347
348	return 0;
349}
350
351static void sc6000_hw_cfg_encode(char __iomem *vport, int *cfg,
352				 long xport, long xmpu,
353				 long xmss_port, int joystick)
354{
355	cfg[0] = 0;
356	cfg[1] = 0;
357	if (xport == 0x240)
358		cfg[0] |= 1;
359	if (xmpu != SNDRV_AUTO_PORT) {
360		cfg[0] |= (xmpu & 0x30) >> 2;
361		cfg[1] |= 0x20;
362	}
363	if (xmss_port == 0xe80)
364		cfg[0] |= 0x10;
365	cfg[0] |= 0x40;		/* always set */
366	if (!joystick)
367		cfg[0] |= 0x02;
368	cfg[1] |= 0x80;		/* enable WSS system */
369	cfg[1] &= ~0x40;	/* disable IDE */
370	snd_printd("hw cfg %x, %x\n", cfg[0], cfg[1]);
371}
372
373static int sc6000_init_board(char __iomem *vport,
374			     char __iomem *vmss_port, int dev)
375{
376	char answer[15];
377	char version[2];
378	int mss_config = sc6000_irq_to_softcfg(irq[dev]) |
379			 sc6000_dma_to_softcfg(dma[dev]);
380	int config = mss_config |
381		     sc6000_mpu_irq_to_softcfg(mpu_irq[dev]);
382	int err;
383	int old = 0;
384
385	err = sc6000_dsp_reset(vport);
386	if (err < 0) {
387		snd_printk(KERN_ERR "sc6000_dsp_reset: failed!\n");
388		return err;
389	}
390
391	memset(answer, 0, sizeof(answer));
392	err = sc6000_dsp_get_answer(vport, GET_DSP_COPYRIGHT, answer, 15);
393	if (err <= 0) {
394		snd_printk(KERN_ERR "sc6000_dsp_copyright: failed!\n");
395		return -ENODEV;
396	}
397	/*
398	 * My SC-6000 card return "SC-6000" in DSPCopyright, so
399	 * if we have something different, we have to be warned.
400	 */
401	if (strncmp("SC-6000", answer, 7))
402		snd_printk(KERN_WARNING "Warning: non SC-6000 audio card!\n");
403
404	if (sc6000_dsp_get_answer(vport, GET_DSP_VERSION, version, 2) < 2) {
405		snd_printk(KERN_ERR "sc6000_dsp_version: failed!\n");
406		return -ENODEV;
407	}
408	printk(KERN_INFO PFX "Detected model: %s, DSP version %d.%d\n",
409		answer, version[0], version[1]);
410
411	/* set configuration */
412	sc6000_write(vport, COMMAND_5C);
413	if (sc6000_read(vport) < 0)
414		old = 1;
415
416	if (!old) {
417		int cfg[2];
418		sc6000_hw_cfg_encode(vport, &cfg[0], port[dev], mpu_port[dev],
419				     mss_port[dev], joystick[dev]);
420		if (sc6000_hw_cfg_write(vport, cfg) < 0) {
421			snd_printk(KERN_ERR "sc6000_hw_cfg_write: failed!\n");
422			return -EIO;
423		}
424	}
425	err = sc6000_setup_board(vport, config);
426	if (err < 0) {
427		snd_printk(KERN_ERR "sc6000_setup_board: failed!\n");
428		return -ENODEV;
429	}
430
431	sc6000_dsp_reset(vport);
432
433	if (!old) {
434		sc6000_write(vport, COMMAND_60);
435		sc6000_write(vport, 0x02);
436		sc6000_dsp_reset(vport);
437	}
438
439	err = sc6000_setup_board(vport, config);
440	if (err < 0) {
441		snd_printk(KERN_ERR "sc6000_setup_board: failed!\n");
442		return -ENODEV;
443	}
444	err = sc6000_init_mss(vport, config, vmss_port, mss_config);
445	if (err < 0) {
446		snd_printk(KERN_ERR "Cannot initialize "
447			   "Microsoft Sound System mode.\n");
448		return -ENODEV;
449	}
450
451	return 0;
452}
453
454static int snd_sc6000_mixer(struct snd_wss *chip)
455{
456	struct snd_card *card = chip->card;
457	struct snd_ctl_elem_id id1, id2;
458	int err;
459
460	memset(&id1, 0, sizeof(id1));
461	memset(&id2, 0, sizeof(id2));
462	id1.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
463	id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
464	/* reassign AUX0 to FM */
465	strcpy(id1.name, "Aux Playback Switch");
466	strcpy(id2.name, "FM Playback Switch");
467	err = snd_ctl_rename_id(card, &id1, &id2);
468	if (err < 0)
469		return err;
470	strcpy(id1.name, "Aux Playback Volume");
471	strcpy(id2.name, "FM Playback Volume");
472	err = snd_ctl_rename_id(card, &id1, &id2);
473	if (err < 0)
474		return err;
475	/* reassign AUX1 to CD */
476	strcpy(id1.name, "Aux Playback Switch"); id1.index = 1;
477	strcpy(id2.name, "CD Playback Switch");
478	err = snd_ctl_rename_id(card, &id1, &id2);
479	if (err < 0)
480		return err;
481	strcpy(id1.name, "Aux Playback Volume");
482	strcpy(id2.name, "CD Playback Volume");
483	err = snd_ctl_rename_id(card, &id1, &id2);
484	if (err < 0)
485		return err;
486	return 0;
487}
488
489static int snd_sc6000_match(struct device *devptr, unsigned int dev)
490{
491	if (!enable[dev])
492		return 0;
493	if (port[dev] == SNDRV_AUTO_PORT) {
494		printk(KERN_ERR PFX "specify IO port\n");
495		return 0;
496	}
497	if (mss_port[dev] == SNDRV_AUTO_PORT) {
498		printk(KERN_ERR PFX "specify MSS port\n");
499		return 0;
500	}
501	if (port[dev] != 0x220 && port[dev] != 0x240) {
502		printk(KERN_ERR PFX "Port must be 0x220 or 0x240\n");
503		return 0;
504	}
505	if (mss_port[dev] != 0x530 && mss_port[dev] != 0xe80) {
506		printk(KERN_ERR PFX "MSS port must be 0x530 or 0xe80\n");
507		return 0;
508	}
509	if (irq[dev] != SNDRV_AUTO_IRQ && !sc6000_irq_to_softcfg(irq[dev])) {
510		printk(KERN_ERR PFX "invalid IRQ %d\n", irq[dev]);
511		return 0;
512	}
513	if (dma[dev] != SNDRV_AUTO_DMA && !sc6000_dma_to_softcfg(dma[dev])) {
514		printk(KERN_ERR PFX "invalid DMA %d\n", dma[dev]);
515		return 0;
516	}
517	if (mpu_port[dev] != SNDRV_AUTO_PORT &&
518	    (mpu_port[dev] & ~0x30L) != 0x300) {
519		printk(KERN_ERR PFX "invalid MPU-401 port %lx\n",
520			mpu_port[dev]);
521		return 0;
522	}
523	if (mpu_port[dev] != SNDRV_AUTO_PORT &&
524	    mpu_irq[dev] != SNDRV_AUTO_IRQ && mpu_irq[dev] != 0 &&
525	    !sc6000_mpu_irq_to_softcfg(mpu_irq[dev])) {
526		printk(KERN_ERR PFX "invalid MPU-401 IRQ %d\n", mpu_irq[dev]);
527		return 0;
528	}
529	return 1;
530}
531
532static void snd_sc6000_free(struct snd_card *card)
533{
534	char __iomem *vport = (char __force __iomem *)card->private_data;
535
536	if (vport)
537		sc6000_setup_board(vport, 0);
538}
539
540static int __snd_sc6000_probe(struct device *devptr, unsigned int dev)
541{
542	static const int possible_irqs[] = { 5, 7, 9, 10, 11, -1 };
543	static const int possible_dmas[] = { 1, 3, 0, -1 };
544	int err;
545	int xirq = irq[dev];
546	int xdma = dma[dev];
547	struct snd_card *card;
548	struct snd_wss *chip;
549	struct snd_opl3 *opl3;
550	char __iomem *vport;
551	char __iomem *vmss_port;
552
553	err = snd_devm_card_new(devptr, index[dev], id[dev], THIS_MODULE,
554				0, &card);
555	if (err < 0)
556		return err;
557
558	if (xirq == SNDRV_AUTO_IRQ) {
559		xirq = snd_legacy_find_free_irq(possible_irqs);
560		if (xirq < 0) {
561			snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
562			return -EBUSY;
563		}
564	}
565
566	if (xdma == SNDRV_AUTO_DMA) {
567		xdma = snd_legacy_find_free_dma(possible_dmas);
568		if (xdma < 0) {
569			snd_printk(KERN_ERR PFX "unable to find a free DMA\n");
570			return -EBUSY;
571		}
572	}
573
574	if (!devm_request_region(devptr, port[dev], 0x10, DRV_NAME)) {
575		snd_printk(KERN_ERR PFX
576			   "I/O port region is already in use.\n");
577		return -EBUSY;
578	}
579	vport = devm_ioport_map(devptr, port[dev], 0x10);
580	if (!vport) {
581		snd_printk(KERN_ERR PFX
582			   "I/O port cannot be iomapped.\n");
583		return -EBUSY;
584	}
585	card->private_data = (void __force *)vport;
586
587	/* to make it marked as used */
588	if (!devm_request_region(devptr, mss_port[dev], 4, DRV_NAME)) {
589		snd_printk(KERN_ERR PFX
590			   "SC-6000 port I/O port region is already in use.\n");
591		return -EBUSY;
592	}
593	vmss_port = devm_ioport_map(devptr, mss_port[dev], 4);
594	if (!vmss_port) {
595		snd_printk(KERN_ERR PFX
596			   "MSS port I/O cannot be iomapped.\n");
597		return -EBUSY;
598	}
599
600	snd_printd("Initializing BASE[0x%lx] IRQ[%d] DMA[%d] MIRQ[%d]\n",
601		   port[dev], xirq, xdma,
602		   mpu_irq[dev] == SNDRV_AUTO_IRQ ? 0 : mpu_irq[dev]);
603
604	err = sc6000_init_board(vport, vmss_port, dev);
605	if (err < 0)
606		return err;
607	card->private_free = snd_sc6000_free;
608
609	err = snd_wss_create(card, mss_port[dev] + 4,  -1, xirq, xdma, -1,
610			     WSS_HW_DETECT, 0, &chip);
611	if (err < 0)
612		return err;
613
614	err = snd_wss_pcm(chip, 0);
615	if (err < 0) {
616		snd_printk(KERN_ERR PFX
617			   "error creating new WSS PCM device\n");
618		return err;
619	}
620	err = snd_wss_mixer(chip);
621	if (err < 0) {
622		snd_printk(KERN_ERR PFX "error creating new WSS mixer\n");
623		return err;
624	}
625	err = snd_sc6000_mixer(chip);
626	if (err < 0) {
627		snd_printk(KERN_ERR PFX "the mixer rewrite failed\n");
628		return err;
629	}
630	if (snd_opl3_create(card,
631			    0x388, 0x388 + 2,
632			    OPL3_HW_AUTO, 0, &opl3) < 0) {
633		snd_printk(KERN_ERR PFX "no OPL device at 0x%x-0x%x ?\n",
634			   0x388, 0x388 + 2);
635	} else {
636		err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
637		if (err < 0)
638			return err;
639	}
640
641	if (mpu_port[dev] != SNDRV_AUTO_PORT) {
642		if (mpu_irq[dev] == SNDRV_AUTO_IRQ)
643			mpu_irq[dev] = -1;
644		if (snd_mpu401_uart_new(card, 0,
645					MPU401_HW_MPU401,
646					mpu_port[dev], 0,
647					mpu_irq[dev], NULL) < 0)
648			snd_printk(KERN_ERR "no MPU-401 device at 0x%lx ?\n",
649					mpu_port[dev]);
650	}
651
652	strcpy(card->driver, DRV_NAME);
653	strcpy(card->shortname, "SC-6000");
654	sprintf(card->longname, "Gallant SC-6000 at 0x%lx, irq %d, dma %d",
655		mss_port[dev], xirq, xdma);
656
657	err = snd_card_register(card);
658	if (err < 0)
659		return err;
660
661	dev_set_drvdata(devptr, card);
662	return 0;
663}
664
665static int snd_sc6000_probe(struct device *devptr, unsigned int dev)
666{
667	return snd_card_free_on_error(devptr, __snd_sc6000_probe(devptr, dev));
668}
669
670static struct isa_driver snd_sc6000_driver = {
671	.match		= snd_sc6000_match,
672	.probe		= snd_sc6000_probe,
673	/* FIXME: suspend/resume */
674	.driver		= {
675		.name	= DRV_NAME,
676	},
677};
678
679
680module_isa_driver(snd_sc6000_driver, SNDRV_CARDS);
681