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28#include <linux/module.h>
29#include <linux/delay.h>
30#include <linux/isa.h>
31#include <linux/io.h>
32#include <asm/dma.h>
33#include <sound/core.h>
34#include <sound/wss.h>
35#include <sound/opl3.h>
36#include <sound/mpu401.h>
37#include <sound/control.h>
38#define SNDRV_LEGACY_FIND_FREE_IRQ
39#define SNDRV_LEGACY_FIND_FREE_DMA
40#include <sound/initval.h>
41
42MODULE_AUTHOR("Krzysztof Helt");
43MODULE_DESCRIPTION("Gallant SC-6000");
44MODULE_LICENSE("GPL");
45MODULE_SUPPORTED_DEVICE("{{Gallant, SC-6000},"
46 "{AudioExcel, Audio Excel DSP 16},"
47 "{Zoltrix, AV302}}");
48
49static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
50static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
51static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;
52static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
53static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
54static long mss_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
55static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
56
57static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
58static int dma[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
59static bool joystick[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = false };
60
61module_param_array(index, int, NULL, 0444);
62MODULE_PARM_DESC(index, "Index value for sc-6000 based soundcard.");
63module_param_array(id, charp, NULL, 0444);
64MODULE_PARM_DESC(id, "ID string for sc-6000 based soundcard.");
65module_param_array(enable, bool, NULL, 0444);
66MODULE_PARM_DESC(enable, "Enable sc-6000 based soundcard.");
67module_param_array(port, long, NULL, 0444);
68MODULE_PARM_DESC(port, "Port # for sc-6000 driver.");
69module_param_array(mss_port, long, NULL, 0444);
70MODULE_PARM_DESC(mss_port, "MSS Port # for sc-6000 driver.");
71module_param_array(mpu_port, long, NULL, 0444);
72MODULE_PARM_DESC(mpu_port, "MPU-401 port # for sc-6000 driver.");
73module_param_array(irq, int, NULL, 0444);
74MODULE_PARM_DESC(irq, "IRQ # for sc-6000 driver.");
75module_param_array(mpu_irq, int, NULL, 0444);
76MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for sc-6000 driver.");
77module_param_array(dma, int, NULL, 0444);
78MODULE_PARM_DESC(dma, "DMA # for sc-6000 driver.");
79module_param_array(joystick, bool, NULL, 0444);
80MODULE_PARM_DESC(joystick, "Enable gameport.");
81
82
83
84
85
86#define WRITE_MDIRQ_CFG 0x50
87#define COMMAND_52 0x52
88#define READ_HARD_CFG 0x58
89#define COMMAND_5C 0x5c
90#define COMMAND_60 0x60
91#define COMMAND_66 0x66
92#define COMMAND_6C 0x6c
93#define COMMAND_6E 0x6e
94#define COMMAND_88 0x88
95#define DSP_INIT_MSS 0x8c
96#define COMMAND_C5 0xc5
97#define GET_DSP_VERSION 0xe1
98#define GET_DSP_COPYRIGHT 0xe3
99
100
101
102
103
104
105
106
107
108
109#define DSP_RESET 0x06
110#define DSP_READ 0x0a
111#define DSP_WRITE 0x0c
112#define DSP_COMMAND 0x0c
113#define DSP_STATUS 0x0c
114#define DSP_DATAVAIL 0x0e
115
116#define PFX "sc6000: "
117#define DRV_NAME "SC-6000"
118
119
120
121
122
123
124static unsigned char sc6000_irq_to_softcfg(int irq)
125{
126 unsigned char val = 0;
127
128 switch (irq) {
129 case 5:
130 val = 0x28;
131 break;
132 case 7:
133 val = 0x8;
134 break;
135 case 9:
136 val = 0x10;
137 break;
138 case 10:
139 val = 0x18;
140 break;
141 case 11:
142 val = 0x20;
143 break;
144 default:
145 break;
146 }
147 return val;
148}
149
150
151
152
153static unsigned char sc6000_dma_to_softcfg(int dma)
154{
155 unsigned char val = 0;
156
157 switch (dma) {
158 case 0:
159 val = 1;
160 break;
161 case 1:
162 val = 2;
163 break;
164 case 3:
165 val = 3;
166 break;
167 default:
168 break;
169 }
170 return val;
171}
172
173
174
175
176static unsigned char sc6000_mpu_irq_to_softcfg(int mpu_irq)
177{
178 unsigned char val = 0;
179
180 switch (mpu_irq) {
181 case 5:
182 val = 4;
183 break;
184 case 7:
185 val = 0x44;
186 break;
187 case 9:
188 val = 0x84;
189 break;
190 case 10:
191 val = 0xc4;
192 break;
193 default:
194 break;
195 }
196 return val;
197}
198
199static int sc6000_wait_data(char __iomem *vport)
200{
201 int loop = 1000;
202 unsigned char val = 0;
203
204 do {
205 val = ioread8(vport + DSP_DATAVAIL);
206 if (val & 0x80)
207 return 0;
208 cpu_relax();
209 } while (loop--);
210
211 return -EAGAIN;
212}
213
214static int sc6000_read(char __iomem *vport)
215{
216 if (sc6000_wait_data(vport))
217 return -EBUSY;
218
219 return ioread8(vport + DSP_READ);
220
221}
222
223static int sc6000_write(char __iomem *vport, int cmd)
224{
225 unsigned char val;
226 int loop = 500000;
227
228 do {
229 val = ioread8(vport + DSP_STATUS);
230
231
232
233 if (!(val & 0x80)) {
234 iowrite8(cmd, vport + DSP_COMMAND);
235 return 0;
236 }
237 cpu_relax();
238 } while (loop--);
239
240 snd_printk(KERN_ERR "DSP Command (0x%x) timeout.\n", cmd);
241
242 return -EIO;
243}
244
245static int sc6000_dsp_get_answer(char __iomem *vport, int command,
246 char *data, int data_len)
247{
248 int len = 0;
249
250 if (sc6000_write(vport, command)) {
251 snd_printk(KERN_ERR "CMD 0x%x: failed!\n", command);
252 return -EIO;
253 }
254
255 do {
256 int val = sc6000_read(vport);
257
258 if (val < 0)
259 break;
260
261 data[len++] = val;
262
263 } while (len < data_len);
264
265
266
267
268
269 return len ? len : -EIO;
270}
271
272static int sc6000_dsp_reset(char __iomem *vport)
273{
274 iowrite8(1, vport + DSP_RESET);
275 udelay(10);
276 iowrite8(0, vport + DSP_RESET);
277 udelay(20);
278 if (sc6000_read(vport) == 0xaa)
279 return 0;
280 return -ENODEV;
281}
282
283
284static int sc6000_hw_cfg_write(char __iomem *vport, const int *cfg)
285{
286 if (sc6000_write(vport, COMMAND_6C) < 0) {
287 snd_printk(KERN_WARNING "CMD 0x%x: failed!\n", COMMAND_6C);
288 return -EIO;
289 }
290 if (sc6000_write(vport, COMMAND_5C) < 0) {
291 snd_printk(KERN_ERR "CMD 0x%x: failed!\n", COMMAND_5C);
292 return -EIO;
293 }
294 if (sc6000_write(vport, cfg[0]) < 0) {
295 snd_printk(KERN_ERR "DATA 0x%x: failed!\n", cfg[0]);
296 return -EIO;
297 }
298 if (sc6000_write(vport, cfg[1]) < 0) {
299 snd_printk(KERN_ERR "DATA 0x%x: failed!\n", cfg[1]);
300 return -EIO;
301 }
302 if (sc6000_write(vport, COMMAND_C5) < 0) {
303 snd_printk(KERN_ERR "CMD 0x%x: failed!\n", COMMAND_C5);
304 return -EIO;
305 }
306
307 return 0;
308}
309
310static int sc6000_cfg_write(char __iomem *vport, unsigned char softcfg)
311{
312
313 if (sc6000_write(vport, WRITE_MDIRQ_CFG)) {
314 snd_printk(KERN_ERR "CMD 0x%x: failed!\n", WRITE_MDIRQ_CFG);
315 return -EIO;
316 }
317 if (sc6000_write(vport, softcfg)) {
318 snd_printk(KERN_ERR "sc6000_cfg_write: failed!\n");
319 return -EIO;
320 }
321 return 0;
322}
323
324static int sc6000_setup_board(char __iomem *vport, int config)
325{
326 int loop = 10;
327
328 do {
329 if (sc6000_write(vport, COMMAND_88)) {
330 snd_printk(KERN_ERR "CMD 0x%x: failed!\n",
331 COMMAND_88);
332 return -EIO;
333 }
334 } while ((sc6000_wait_data(vport) < 0) && loop--);
335
336 if (sc6000_read(vport) < 0) {
337 snd_printk(KERN_ERR "sc6000_read after CMD 0x%x: failed\n",
338 COMMAND_88);
339 return -EIO;
340 }
341
342 if (sc6000_cfg_write(vport, config))
343 return -ENODEV;
344
345 return 0;
346}
347
348static int sc6000_init_mss(char __iomem *vport, int config,
349 char __iomem *vmss_port, int mss_config)
350{
351 if (sc6000_write(vport, DSP_INIT_MSS)) {
352 snd_printk(KERN_ERR "sc6000_init_mss [0x%x]: failed!\n",
353 DSP_INIT_MSS);
354 return -EIO;
355 }
356
357 msleep(10);
358
359 if (sc6000_cfg_write(vport, config))
360 return -EIO;
361
362 iowrite8(mss_config, vmss_port);
363
364 return 0;
365}
366
367static void sc6000_hw_cfg_encode(char __iomem *vport, int *cfg,
368 long xport, long xmpu,
369 long xmss_port, int joystick)
370{
371 cfg[0] = 0;
372 cfg[1] = 0;
373 if (xport == 0x240)
374 cfg[0] |= 1;
375 if (xmpu != SNDRV_AUTO_PORT) {
376 cfg[0] |= (xmpu & 0x30) >> 2;
377 cfg[1] |= 0x20;
378 }
379 if (xmss_port == 0xe80)
380 cfg[0] |= 0x10;
381 cfg[0] |= 0x40;
382 if (!joystick)
383 cfg[0] |= 0x02;
384 cfg[1] |= 0x80;
385 cfg[1] &= ~0x40;
386 snd_printd("hw cfg %x, %x\n", cfg[0], cfg[1]);
387}
388
389static int sc6000_init_board(char __iomem *vport,
390 char __iomem *vmss_port, int dev)
391{
392 char answer[15];
393 char version[2];
394 int mss_config = sc6000_irq_to_softcfg(irq[dev]) |
395 sc6000_dma_to_softcfg(dma[dev]);
396 int config = mss_config |
397 sc6000_mpu_irq_to_softcfg(mpu_irq[dev]);
398 int err;
399 int old = 0;
400
401 err = sc6000_dsp_reset(vport);
402 if (err < 0) {
403 snd_printk(KERN_ERR "sc6000_dsp_reset: failed!\n");
404 return err;
405 }
406
407 memset(answer, 0, sizeof(answer));
408 err = sc6000_dsp_get_answer(vport, GET_DSP_COPYRIGHT, answer, 15);
409 if (err <= 0) {
410 snd_printk(KERN_ERR "sc6000_dsp_copyright: failed!\n");
411 return -ENODEV;
412 }
413
414
415
416
417 if (strncmp("SC-6000", answer, 7))
418 snd_printk(KERN_WARNING "Warning: non SC-6000 audio card!\n");
419
420 if (sc6000_dsp_get_answer(vport, GET_DSP_VERSION, version, 2) < 2) {
421 snd_printk(KERN_ERR "sc6000_dsp_version: failed!\n");
422 return -ENODEV;
423 }
424 printk(KERN_INFO PFX "Detected model: %s, DSP version %d.%d\n",
425 answer, version[0], version[1]);
426
427
428 sc6000_write(vport, COMMAND_5C);
429 if (sc6000_read(vport) < 0)
430 old = 1;
431
432 if (!old) {
433 int cfg[2];
434 sc6000_hw_cfg_encode(vport, &cfg[0], port[dev], mpu_port[dev],
435 mss_port[dev], joystick[dev]);
436 if (sc6000_hw_cfg_write(vport, cfg) < 0) {
437 snd_printk(KERN_ERR "sc6000_hw_cfg_write: failed!\n");
438 return -EIO;
439 }
440 }
441 err = sc6000_setup_board(vport, config);
442 if (err < 0) {
443 snd_printk(KERN_ERR "sc6000_setup_board: failed!\n");
444 return -ENODEV;
445 }
446
447 sc6000_dsp_reset(vport);
448
449 if (!old) {
450 sc6000_write(vport, COMMAND_60);
451 sc6000_write(vport, 0x02);
452 sc6000_dsp_reset(vport);
453 }
454
455 err = sc6000_setup_board(vport, config);
456 if (err < 0) {
457 snd_printk(KERN_ERR "sc6000_setup_board: failed!\n");
458 return -ENODEV;
459 }
460 err = sc6000_init_mss(vport, config, vmss_port, mss_config);
461 if (err < 0) {
462 snd_printk(KERN_ERR "Cannot initialize "
463 "Microsoft Sound System mode.\n");
464 return -ENODEV;
465 }
466
467 return 0;
468}
469
470static int snd_sc6000_mixer(struct snd_wss *chip)
471{
472 struct snd_card *card = chip->card;
473 struct snd_ctl_elem_id id1, id2;
474 int err;
475
476 memset(&id1, 0, sizeof(id1));
477 memset(&id2, 0, sizeof(id2));
478 id1.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
479 id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
480
481 strcpy(id1.name, "Aux Playback Switch");
482 strcpy(id2.name, "FM Playback Switch");
483 err = snd_ctl_rename_id(card, &id1, &id2);
484 if (err < 0)
485 return err;
486 strcpy(id1.name, "Aux Playback Volume");
487 strcpy(id2.name, "FM Playback Volume");
488 err = snd_ctl_rename_id(card, &id1, &id2);
489 if (err < 0)
490 return err;
491
492 strcpy(id1.name, "Aux Playback Switch"); id1.index = 1;
493 strcpy(id2.name, "CD Playback Switch");
494 err = snd_ctl_rename_id(card, &id1, &id2);
495 if (err < 0)
496 return err;
497 strcpy(id1.name, "Aux Playback Volume");
498 strcpy(id2.name, "CD Playback Volume");
499 err = snd_ctl_rename_id(card, &id1, &id2);
500 if (err < 0)
501 return err;
502 return 0;
503}
504
505static int snd_sc6000_match(struct device *devptr, unsigned int dev)
506{
507 if (!enable[dev])
508 return 0;
509 if (port[dev] == SNDRV_AUTO_PORT) {
510 printk(KERN_ERR PFX "specify IO port\n");
511 return 0;
512 }
513 if (mss_port[dev] == SNDRV_AUTO_PORT) {
514 printk(KERN_ERR PFX "specify MSS port\n");
515 return 0;
516 }
517 if (port[dev] != 0x220 && port[dev] != 0x240) {
518 printk(KERN_ERR PFX "Port must be 0x220 or 0x240\n");
519 return 0;
520 }
521 if (mss_port[dev] != 0x530 && mss_port[dev] != 0xe80) {
522 printk(KERN_ERR PFX "MSS port must be 0x530 or 0xe80\n");
523 return 0;
524 }
525 if (irq[dev] != SNDRV_AUTO_IRQ && !sc6000_irq_to_softcfg(irq[dev])) {
526 printk(KERN_ERR PFX "invalid IRQ %d\n", irq[dev]);
527 return 0;
528 }
529 if (dma[dev] != SNDRV_AUTO_DMA && !sc6000_dma_to_softcfg(dma[dev])) {
530 printk(KERN_ERR PFX "invalid DMA %d\n", dma[dev]);
531 return 0;
532 }
533 if (mpu_port[dev] != SNDRV_AUTO_PORT &&
534 (mpu_port[dev] & ~0x30L) != 0x300) {
535 printk(KERN_ERR PFX "invalid MPU-401 port %lx\n",
536 mpu_port[dev]);
537 return 0;
538 }
539 if (mpu_port[dev] != SNDRV_AUTO_PORT &&
540 mpu_irq[dev] != SNDRV_AUTO_IRQ && mpu_irq[dev] != 0 &&
541 !sc6000_mpu_irq_to_softcfg(mpu_irq[dev])) {
542 printk(KERN_ERR PFX "invalid MPU-401 IRQ %d\n", mpu_irq[dev]);
543 return 0;
544 }
545 return 1;
546}
547
548static int snd_sc6000_probe(struct device *devptr, unsigned int dev)
549{
550 static int possible_irqs[] = { 5, 7, 9, 10, 11, -1 };
551 static int possible_dmas[] = { 1, 3, 0, -1 };
552 int err;
553 int xirq = irq[dev];
554 int xdma = dma[dev];
555 struct snd_card *card;
556 struct snd_wss *chip;
557 struct snd_opl3 *opl3;
558 char __iomem **vport;
559 char __iomem *vmss_port;
560
561
562 err = snd_card_create(index[dev], id[dev], THIS_MODULE, sizeof(vport),
563 &card);
564 if (err < 0)
565 return err;
566
567 vport = card->private_data;
568 if (xirq == SNDRV_AUTO_IRQ) {
569 xirq = snd_legacy_find_free_irq(possible_irqs);
570 if (xirq < 0) {
571 snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
572 err = -EBUSY;
573 goto err_exit;
574 }
575 }
576
577 if (xdma == SNDRV_AUTO_DMA) {
578 xdma = snd_legacy_find_free_dma(possible_dmas);
579 if (xdma < 0) {
580 snd_printk(KERN_ERR PFX "unable to find a free DMA\n");
581 err = -EBUSY;
582 goto err_exit;
583 }
584 }
585
586 if (!request_region(port[dev], 0x10, DRV_NAME)) {
587 snd_printk(KERN_ERR PFX
588 "I/O port region is already in use.\n");
589 err = -EBUSY;
590 goto err_exit;
591 }
592 *vport = devm_ioport_map(devptr, port[dev], 0x10);
593 if (*vport == NULL) {
594 snd_printk(KERN_ERR PFX
595 "I/O port cannot be iomaped.\n");
596 err = -EBUSY;
597 goto err_unmap1;
598 }
599
600
601 if (!request_region(mss_port[dev], 4, DRV_NAME)) {
602 snd_printk(KERN_ERR PFX
603 "SC-6000 port I/O port region is already in use.\n");
604 err = -EBUSY;
605 goto err_unmap1;
606 }
607 vmss_port = devm_ioport_map(devptr, mss_port[dev], 4);
608 if (!vmss_port) {
609 snd_printk(KERN_ERR PFX
610 "MSS port I/O cannot be iomaped.\n");
611 err = -EBUSY;
612 goto err_unmap2;
613 }
614
615 snd_printd("Initializing BASE[0x%lx] IRQ[%d] DMA[%d] MIRQ[%d]\n",
616 port[dev], xirq, xdma,
617 mpu_irq[dev] == SNDRV_AUTO_IRQ ? 0 : mpu_irq[dev]);
618
619 err = sc6000_init_board(*vport, vmss_port, dev);
620 if (err < 0)
621 goto err_unmap2;
622
623 err = snd_wss_create(card, mss_port[dev] + 4, -1, xirq, xdma, -1,
624 WSS_HW_DETECT, 0, &chip);
625 if (err < 0)
626 goto err_unmap2;
627
628 err = snd_wss_pcm(chip, 0, NULL);
629 if (err < 0) {
630 snd_printk(KERN_ERR PFX
631 "error creating new WSS PCM device\n");
632 goto err_unmap2;
633 }
634 err = snd_wss_mixer(chip);
635 if (err < 0) {
636 snd_printk(KERN_ERR PFX "error creating new WSS mixer\n");
637 goto err_unmap2;
638 }
639 err = snd_sc6000_mixer(chip);
640 if (err < 0) {
641 snd_printk(KERN_ERR PFX "the mixer rewrite failed\n");
642 goto err_unmap2;
643 }
644 if (snd_opl3_create(card,
645 0x388, 0x388 + 2,
646 OPL3_HW_AUTO, 0, &opl3) < 0) {
647 snd_printk(KERN_ERR PFX "no OPL device at 0x%x-0x%x ?\n",
648 0x388, 0x388 + 2);
649 } else {
650 err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
651 if (err < 0)
652 goto err_unmap2;
653 }
654
655 if (mpu_port[dev] != SNDRV_AUTO_PORT) {
656 if (mpu_irq[dev] == SNDRV_AUTO_IRQ)
657 mpu_irq[dev] = -1;
658 if (snd_mpu401_uart_new(card, 0,
659 MPU401_HW_MPU401,
660 mpu_port[dev], 0,
661 mpu_irq[dev], NULL) < 0)
662 snd_printk(KERN_ERR "no MPU-401 device at 0x%lx ?\n",
663 mpu_port[dev]);
664 }
665
666 strcpy(card->driver, DRV_NAME);
667 strcpy(card->shortname, "SC-6000");
668 sprintf(card->longname, "Gallant SC-6000 at 0x%lx, irq %d, dma %d",
669 mss_port[dev], xirq, xdma);
670
671 snd_card_set_dev(card, devptr);
672
673 err = snd_card_register(card);
674 if (err < 0)
675 goto err_unmap2;
676
677 dev_set_drvdata(devptr, card);
678 return 0;
679
680err_unmap2:
681 sc6000_setup_board(*vport, 0);
682 release_region(mss_port[dev], 4);
683err_unmap1:
684 release_region(port[dev], 0x10);
685err_exit:
686 snd_card_free(card);
687 return err;
688}
689
690static int snd_sc6000_remove(struct device *devptr, unsigned int dev)
691{
692 struct snd_card *card = dev_get_drvdata(devptr);
693 char __iomem **vport = card->private_data;
694
695 if (sc6000_setup_board(*vport, 0) < 0)
696 snd_printk(KERN_WARNING "sc6000_setup_board failed on exit!\n");
697
698 release_region(port[dev], 0x10);
699 release_region(mss_port[dev], 4);
700
701 dev_set_drvdata(devptr, NULL);
702 snd_card_free(card);
703 return 0;
704}
705
706static struct isa_driver snd_sc6000_driver = {
707 .match = snd_sc6000_match,
708 .probe = snd_sc6000_probe,
709 .remove = snd_sc6000_remove,
710
711 .driver = {
712 .name = DRV_NAME,
713 },
714};
715
716
717static int __init alsa_card_sc6000_init(void)
718{
719 return isa_register_driver(&snd_sc6000_driver, SNDRV_CARDS);
720}
721
722static void __exit alsa_card_sc6000_exit(void)
723{
724 isa_unregister_driver(&snd_sc6000_driver);
725}
726
727module_init(alsa_card_sc6000_init)
728module_exit(alsa_card_sc6000_exit)
729
