xref: /openbmc/linux/sound/isa/sc6000.c (revision 73229d7c)
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 
29 MODULE_AUTHOR("Krzysztof Helt");
30 MODULE_DESCRIPTION("Gallant SC-6000");
31 MODULE_LICENSE("GPL");
32 
33 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
34 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
35 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;	/* Enable this card */
36 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* 0x220, 0x240 */
37 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5, 7, 9, 10, 11 */
38 static long mss_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* 0x530, 0xe80 */
39 static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
40 						/* 0x300, 0x310, 0x320, 0x330 */
41 static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5, 7, 9, 10, 0 */
42 static int dma[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0, 1, 3 */
43 static bool joystick[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = false };
44 
45 module_param_array(index, int, NULL, 0444);
46 MODULE_PARM_DESC(index, "Index value for sc-6000 based soundcard.");
47 module_param_array(id, charp, NULL, 0444);
48 MODULE_PARM_DESC(id, "ID string for sc-6000 based soundcard.");
49 module_param_array(enable, bool, NULL, 0444);
50 MODULE_PARM_DESC(enable, "Enable sc-6000 based soundcard.");
51 module_param_hw_array(port, long, ioport, NULL, 0444);
52 MODULE_PARM_DESC(port, "Port # for sc-6000 driver.");
53 module_param_hw_array(mss_port, long, ioport, NULL, 0444);
54 MODULE_PARM_DESC(mss_port, "MSS Port # for sc-6000 driver.");
55 module_param_hw_array(mpu_port, long, ioport, NULL, 0444);
56 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for sc-6000 driver.");
57 module_param_hw_array(irq, int, irq, NULL, 0444);
58 MODULE_PARM_DESC(irq, "IRQ # for sc-6000 driver.");
59 module_param_hw_array(mpu_irq, int, irq, NULL, 0444);
60 MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for sc-6000 driver.");
61 module_param_hw_array(dma, int, dma, NULL, 0444);
62 MODULE_PARM_DESC(dma, "DMA # for sc-6000 driver.");
63 module_param_array(joystick, bool, NULL, 0444);
64 MODULE_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  */
sc6000_irq_to_softcfg(int irq)108 static 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  */
sc6000_dma_to_softcfg(int dma)137 static 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  */
sc6000_mpu_irq_to_softcfg(int mpu_irq)160 static 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 
sc6000_wait_data(char __iomem * vport)183 static 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 
sc6000_read(char __iomem * vport)198 static 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 
sc6000_write(char __iomem * vport,int cmd)207 static 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 
sc6000_dsp_get_answer(char __iomem * vport,int command,char * data,int data_len)229 static 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 
sc6000_dsp_reset(char __iomem * vport)256 static 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 */
sc6000_hw_cfg_write(char __iomem * vport,const int * cfg)268 static 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 
sc6000_cfg_write(char __iomem * vport,unsigned char softcfg)294 static 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 
sc6000_setup_board(char __iomem * vport,int config)308 static 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 
sc6000_init_mss(char __iomem * vport,int config,char __iomem * vmss_port,int mss_config)332 static 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 
sc6000_hw_cfg_encode(char __iomem * vport,int * cfg,long xport,long xmpu,long xmss_port,int joystick)351 static 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 
sc6000_init_board(char __iomem * vport,char __iomem * vmss_port,int dev)373 static 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 
snd_sc6000_mixer(struct snd_wss * chip)454 static 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 
snd_sc6000_match(struct device * devptr,unsigned int dev)489 static 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 
snd_sc6000_free(struct snd_card * card)532 static 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 
__snd_sc6000_probe(struct device * devptr,unsigned int dev)540 static 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 
snd_sc6000_probe(struct device * devptr,unsigned int dev)665 static 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 
670 static 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 
680 module_isa_driver(snd_sc6000_driver, SNDRV_CARDS);
681