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

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