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(struct device *devptr, 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 dev_err(devptr, "DSP Command (0x%x) timeout.\n", cmd);
225
226 return -EIO;
227}
228
229static int sc6000_dsp_get_answer(struct device *devptr,
230 char __iomem *vport, int command,
231 char *data, int data_len)
232{
233 int len = 0;
234
235 if (sc6000_write(devptr, vport, cmd: command)) {
236 dev_err(devptr, "CMD 0x%x: failed!\n", command);
237 return -EIO;
238 }
239
240 do {
241 int val = sc6000_read(vport);
242
243 if (val < 0)
244 break;
245
246 data[len++] = val;
247
248 } while (len < data_len);
249
250 /*
251 * If no more data available, return to the caller, no error if len>0.
252 * We have no other way to know when the string is finished.
253 */
254 return len ? len : -EIO;
255}
256
257static int sc6000_dsp_reset(char __iomem *vport)
258{
259 iowrite8(1, vport + DSP_RESET);
260 udelay(usec: 10);
261 iowrite8(0, vport + DSP_RESET);
262 udelay(usec: 20);
263 if (sc6000_read(vport) == 0xaa)
264 return 0;
265 return -ENODEV;
266}
267
268/* detection and initialization */
269static int sc6000_hw_cfg_write(struct device *devptr,
270 char __iomem *vport, const int *cfg)
271{
272 if (sc6000_write(devptr, vport, COMMAND_6C) < 0) {
273 dev_warn(devptr, "CMD 0x%x: failed!\n", COMMAND_6C);
274 return -EIO;
275 }
276 if (sc6000_write(devptr, vport, COMMAND_5C) < 0) {
277 dev_err(devptr, "CMD 0x%x: failed!\n", COMMAND_5C);
278 return -EIO;
279 }
280 if (sc6000_write(devptr, vport, cmd: cfg[0]) < 0) {
281 dev_err(devptr, "DATA 0x%x: failed!\n", cfg[0]);
282 return -EIO;
283 }
284 if (sc6000_write(devptr, vport, cmd: cfg[1]) < 0) {
285 dev_err(devptr, "DATA 0x%x: failed!\n", cfg[1]);
286 return -EIO;
287 }
288 if (sc6000_write(devptr, vport, COMMAND_C5) < 0) {
289 dev_err(devptr, "CMD 0x%x: failed!\n", COMMAND_C5);
290 return -EIO;
291 }
292
293 return 0;
294}
295
296static int sc6000_cfg_write(struct device *devptr,
297 char __iomem *vport, unsigned char softcfg)
298{
299
300 if (sc6000_write(devptr, vport, WRITE_MDIRQ_CFG)) {
301 dev_err(devptr, "CMD 0x%x: failed!\n", WRITE_MDIRQ_CFG);
302 return -EIO;
303 }
304 if (sc6000_write(devptr, vport, cmd: softcfg)) {
305 dev_err(devptr, "%s: failed!\n", __func__);
306 return -EIO;
307 }
308 return 0;
309}
310
311static int sc6000_setup_board(struct device *devptr,
312 char __iomem *vport, int config)
313{
314 int loop = 10;
315
316 do {
317 if (sc6000_write(devptr, vport, COMMAND_88)) {
318 dev_err(devptr, "CMD 0x%x: failed!\n",
319 COMMAND_88);
320 return -EIO;
321 }
322 } while ((sc6000_wait_data(vport) < 0) && loop--);
323
324 if (sc6000_read(vport) < 0) {
325 dev_err(devptr, "sc6000_read after CMD 0x%x: failed\n",
326 COMMAND_88);
327 return -EIO;
328 }
329
330 if (sc6000_cfg_write(devptr, vport, softcfg: config))
331 return -ENODEV;
332
333 return 0;
334}
335
336static int sc6000_init_mss(struct device *devptr,
337 char __iomem *vport, int config,
338 char __iomem *vmss_port, int mss_config)
339{
340 if (sc6000_write(devptr, vport, DSP_INIT_MSS)) {
341 dev_err(devptr, "%s [0x%x]: failed!\n", __func__,
342 DSP_INIT_MSS);
343 return -EIO;
344 }
345
346 msleep(msecs: 10);
347
348 if (sc6000_cfg_write(devptr, vport, softcfg: config))
349 return -EIO;
350
351 iowrite8(mss_config, vmss_port);
352
353 return 0;
354}
355
356static void sc6000_hw_cfg_encode(struct device *devptr,
357 char __iomem *vport, int *cfg,
358 long xport, long xmpu,
359 long xmss_port, int joystick)
360{
361 cfg[0] = 0;
362 cfg[1] = 0;
363 if (xport == 0x240)
364 cfg[0] |= 1;
365 if (xmpu != SNDRV_AUTO_PORT) {
366 cfg[0] |= (xmpu & 0x30) >> 2;
367 cfg[1] |= 0x20;
368 }
369 if (xmss_port == 0xe80)
370 cfg[0] |= 0x10;
371 cfg[0] |= 0x40; /* always set */
372 if (!joystick)
373 cfg[0] |= 0x02;
374 cfg[1] |= 0x80; /* enable WSS system */
375 cfg[1] &= ~0x40; /* disable IDE */
376 dev_dbg(devptr, "hw cfg %x, %x\n", cfg[0], cfg[1]);
377}
378
379static int sc6000_init_board(struct device *devptr,
380 char __iomem *vport,
381 char __iomem *vmss_port, int dev)
382{
383 char answer[15];
384 char version[2];
385 int mss_config = sc6000_irq_to_softcfg(irq: irq[dev]) |
386 sc6000_dma_to_softcfg(dma: dma[dev]);
387 int config = mss_config |
388 sc6000_mpu_irq_to_softcfg(mpu_irq: mpu_irq[dev]);
389 int err;
390 int old = 0;
391
392 err = sc6000_dsp_reset(vport);
393 if (err < 0) {
394 dev_err(devptr, "sc6000_dsp_reset: failed!\n");
395 return err;
396 }
397
398 memset(answer, 0, sizeof(answer));
399 err = sc6000_dsp_get_answer(devptr, vport, GET_DSP_COPYRIGHT, data: answer, data_len: 15);
400 if (err <= 0) {
401 dev_err(devptr, "sc6000_dsp_copyright: failed!\n");
402 return -ENODEV;
403 }
404 /*
405 * My SC-6000 card return "SC-6000" in DSPCopyright, so
406 * if we have something different, we have to be warned.
407 */
408 if (strncmp("SC-6000", answer, 7))
409 dev_warn(devptr, "Warning: non SC-6000 audio card!\n");
410
411 if (sc6000_dsp_get_answer(devptr, vport, GET_DSP_VERSION, data: version, data_len: 2) < 2) {
412 dev_err(devptr, "sc6000_dsp_version: failed!\n");
413 return -ENODEV;
414 }
415 dev_info(devptr, "Detected model: %s, DSP version %d.%d\n",
416 answer, version[0], version[1]);
417
418 /* set configuration */
419 sc6000_write(devptr, vport, COMMAND_5C);
420 if (sc6000_read(vport) < 0)
421 old = 1;
422
423 if (!old) {
424 int cfg[2];
425 sc6000_hw_cfg_encode(devptr,
426 vport, cfg: &cfg[0], xport: port[dev], xmpu: mpu_port[dev],
427 xmss_port: mss_port[dev], joystick: joystick[dev]);
428 if (sc6000_hw_cfg_write(devptr, vport, cfg) < 0) {
429 dev_err(devptr, "sc6000_hw_cfg_write: failed!\n");
430 return -EIO;
431 }
432 }
433 err = sc6000_setup_board(devptr, vport, config);
434 if (err < 0) {
435 dev_err(devptr, "sc6000_setup_board: failed!\n");
436 return -ENODEV;
437 }
438
439 sc6000_dsp_reset(vport);
440
441 if (!old) {
442 sc6000_write(devptr, vport, COMMAND_60);
443 sc6000_write(devptr, vport, cmd: 0x02);
444 sc6000_dsp_reset(vport);
445 }
446
447 err = sc6000_setup_board(devptr, vport, config);
448 if (err < 0) {
449 dev_err(devptr, "sc6000_setup_board: failed!\n");
450 return -ENODEV;
451 }
452 err = sc6000_init_mss(devptr, vport, config, vmss_port, mss_config);
453 if (err < 0) {
454 dev_err(devptr, "Cannot initialize Microsoft Sound System mode.\n");
455 return -ENODEV;
456 }
457
458 return 0;
459}
460
461static int snd_sc6000_mixer(struct snd_wss *chip)
462{
463 struct snd_card *card = chip->card;
464 struct snd_ctl_elem_id id1, id2;
465 int err;
466
467 memset(&id1, 0, sizeof(id1));
468 memset(&id2, 0, sizeof(id2));
469 id1.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
470 id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
471 /* reassign AUX0 to FM */
472 strscpy(id1.name, "Aux Playback Switch");
473 strscpy(id2.name, "FM Playback Switch");
474 err = snd_ctl_rename_id(card, src_id: &id1, dst_id: &id2);
475 if (err < 0)
476 return err;
477 strscpy(id1.name, "Aux Playback Volume");
478 strscpy(id2.name, "FM Playback Volume");
479 err = snd_ctl_rename_id(card, src_id: &id1, dst_id: &id2);
480 if (err < 0)
481 return err;
482 /* reassign AUX1 to CD */
483 strscpy(id1.name, "Aux Playback Switch"); id1.index = 1;
484 strscpy(id2.name, "CD Playback Switch");
485 err = snd_ctl_rename_id(card, src_id: &id1, dst_id: &id2);
486 if (err < 0)
487 return err;
488 strscpy(id1.name, "Aux Playback Volume");
489 strscpy(id2.name, "CD Playback Volume");
490 err = snd_ctl_rename_id(card, src_id: &id1, dst_id: &id2);
491 if (err < 0)
492 return err;
493 return 0;
494}
495
496static int snd_sc6000_match(struct device *devptr, unsigned int dev)
497{
498 if (!enable[dev])
499 return 0;
500 if (port[dev] == SNDRV_AUTO_PORT) {
501 dev_err(devptr, "specify IO port\n");
502 return 0;
503 }
504 if (mss_port[dev] == SNDRV_AUTO_PORT) {
505 dev_err(devptr, "specify MSS port\n");
506 return 0;
507 }
508 if (port[dev] != 0x220 && port[dev] != 0x240) {
509 dev_err(devptr, "Port must be 0x220 or 0x240\n");
510 return 0;
511 }
512 if (mss_port[dev] != 0x530 && mss_port[dev] != 0xe80) {
513 dev_err(devptr, "MSS port must be 0x530 or 0xe80\n");
514 return 0;
515 }
516 if (irq[dev] != SNDRV_AUTO_IRQ && !sc6000_irq_to_softcfg(irq: irq[dev])) {
517 dev_err(devptr, "invalid IRQ %d\n", irq[dev]);
518 return 0;
519 }
520 if (dma[dev] != SNDRV_AUTO_DMA && !sc6000_dma_to_softcfg(dma: dma[dev])) {
521 dev_err(devptr, "invalid DMA %d\n", dma[dev]);
522 return 0;
523 }
524 if (mpu_port[dev] != SNDRV_AUTO_PORT &&
525 (mpu_port[dev] & ~0x30L) != 0x300) {
526 dev_err(devptr, "invalid MPU-401 port %lx\n",
527 mpu_port[dev]);
528 return 0;
529 }
530 if (mpu_port[dev] != SNDRV_AUTO_PORT &&
531 mpu_irq[dev] != SNDRV_AUTO_IRQ && mpu_irq[dev] != 0 &&
532 !sc6000_mpu_irq_to_softcfg(mpu_irq: mpu_irq[dev])) {
533 dev_err(devptr, "invalid MPU-401 IRQ %d\n", mpu_irq[dev]);
534 return 0;
535 }
536 return 1;
537}
538
539static void snd_sc6000_free(struct snd_card *card)
540{
541 char __iomem *vport = (char __force __iomem *)card->private_data;
542
543 if (vport)
544 sc6000_setup_board(devptr: card->dev, vport, config: 0);
545}
546
547static int __snd_sc6000_probe(struct device *devptr, unsigned int dev)
548{
549 static const int possible_irqs[] = { 5, 7, 9, 10, 11, -1 };
550 static const int possible_dmas[] = { 1, 3, 0, -1 };
551 int err;
552 int xirq = irq[dev];
553 int xdma = dma[dev];
554 struct snd_card *card;
555 struct snd_wss *chip;
556 struct snd_opl3 *opl3;
557 char __iomem *vport;
558 char __iomem *vmss_port;
559
560 err = snd_devm_card_new(parent: devptr, idx: index[dev], xid: id[dev], THIS_MODULE,
561 extra_size: 0, card_ret: &card);
562 if (err < 0)
563 return err;
564
565 if (xirq == SNDRV_AUTO_IRQ) {
566 xirq = snd_legacy_find_free_irq(irq_table: possible_irqs);
567 if (xirq < 0) {
568 dev_err(devptr, "unable to find a free IRQ\n");
569 return -EBUSY;
570 }
571 }
572
573 if (xdma == SNDRV_AUTO_DMA) {
574 xdma = snd_legacy_find_free_dma(dma_table: possible_dmas);
575 if (xdma < 0) {
576 dev_err(devptr, "unable to find a free DMA\n");
577 return -EBUSY;
578 }
579 }
580
581 if (!devm_request_region(devptr, port[dev], 0x10, DRV_NAME)) {
582 dev_err(devptr, "I/O port region is already in use.\n");
583 return -EBUSY;
584 }
585 vport = devm_ioport_map(dev: devptr, port: port[dev], nr: 0x10);
586 if (!vport) {
587 dev_err(devptr, "I/O port cannot be iomapped.\n");
588 return -EBUSY;
589 }
590 card->private_data = (void __force *)vport;
591
592 /* to make it marked as used */
593 if (!devm_request_region(devptr, mss_port[dev], 4, DRV_NAME)) {
594 dev_err(devptr,
595 "SC-6000 port I/O port region is already in use.\n");
596 return -EBUSY;
597 }
598 vmss_port = devm_ioport_map(dev: devptr, port: mss_port[dev], nr: 4);
599 if (!vmss_port) {
600 dev_err(devptr, "MSS port I/O cannot be iomapped.\n");
601 return -EBUSY;
602 }
603
604 dev_dbg(devptr, "Initializing BASE[0x%lx] IRQ[%d] DMA[%d] MIRQ[%d]\n",
605 port[dev], xirq, xdma,
606 mpu_irq[dev] == SNDRV_AUTO_IRQ ? 0 : mpu_irq[dev]);
607
608 err = sc6000_init_board(devptr, vport, vmss_port, dev);
609 if (err < 0)
610 return err;
611 card->private_free = snd_sc6000_free;
612
613 err = snd_wss_create(card, port: mss_port[dev] + 4, cport: -1, irq: xirq, dma1: xdma, dma2: -1,
614 WSS_HW_DETECT, hwshare: 0, rchip: &chip);
615 if (err < 0)
616 return err;
617
618 err = snd_wss_pcm(chip, device: 0);
619 if (err < 0) {
620 dev_err(devptr, "error creating new WSS PCM device\n");
621 return err;
622 }
623 err = snd_wss_mixer(chip);
624 if (err < 0) {
625 dev_err(devptr, "error creating new WSS mixer\n");
626 return err;
627 }
628 err = snd_sc6000_mixer(chip);
629 if (err < 0) {
630 dev_err(devptr, "the mixer rewrite failed\n");
631 return err;
632 }
633 if (snd_opl3_create(card,
634 l_port: 0x388, r_port: 0x388 + 2,
635 OPL3_HW_AUTO, integrated: 0, opl3: &opl3) < 0) {
636 dev_err(devptr, "no OPL device at 0x%x-0x%x ?\n",
637 0x388, 0x388 + 2);
638 } else {
639 err = snd_opl3_hwdep_new(opl3, device: 0, seq_device: 1, NULL);
640 if (err < 0)
641 return err;
642 }
643
644 if (mpu_port[dev] != SNDRV_AUTO_PORT) {
645 if (mpu_irq[dev] == SNDRV_AUTO_IRQ)
646 mpu_irq[dev] = -1;
647 if (snd_mpu401_uart_new(card, device: 0,
648 MPU401_HW_MPU401,
649 port: mpu_port[dev], info_flags: 0,
650 irq: mpu_irq[dev], NULL) < 0)
651 dev_err(devptr, "no MPU-401 device at 0x%lx ?\n",
652 mpu_port[dev]);
653 }
654
655 strscpy(card->driver, DRV_NAME);
656 strscpy(card->shortname, "SC-6000");
657 sprintf(buf: card->longname, fmt: "Gallant SC-6000 at 0x%lx, irq %d, dma %d",
658 mss_port[dev], xirq, xdma);
659
660 err = snd_card_register(card);
661 if (err < 0)
662 return err;
663
664 dev_set_drvdata(dev: devptr, data: card);
665 return 0;
666}
667
668static int snd_sc6000_probe(struct device *devptr, unsigned int dev)
669{
670 return snd_card_free_on_error(dev: devptr, ret: __snd_sc6000_probe(devptr, dev));
671}
672
673static struct isa_driver snd_sc6000_driver = {
674 .match = snd_sc6000_match,
675 .probe = snd_sc6000_probe,
676 /* FIXME: suspend/resume */
677 .driver = {
678 .name = DRV_NAME,
679 },
680};
681
682
683module_isa_driver(snd_sc6000_driver, SNDRV_CARDS);
684

source code of linux/sound/isa/sc6000.c