aboutsummaryrefslogtreecommitdiffstats
path: root/sound/oss/pas2_card.c
blob: b07954a7953679b077b12b190343492a3271510f (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
/*
 * sound/oss/pas2_card.c
 *
 * Detection routine for the Pro Audio Spectrum cards.
 */

#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/spinlock.h>
#include "sound_config.h"

#include "pas2.h"
#include "sb.h"

static unsigned char dma_bits[] = {
	4, 1, 2, 3, 0, 5, 6, 7
};

static unsigned char irq_bits[] = {
	0, 0, 1, 2, 3, 4, 5, 6, 0, 1, 7, 8, 9, 0, 10, 11
};

static unsigned char sb_irq_bits[] = {
	0x00, 0x00, 0x08, 0x10, 0x00, 0x18, 0x00, 0x20, 
	0x00, 0x08, 0x28, 0x30, 0x38, 0, 0
};

static unsigned char sb_dma_bits[] = {
	0x00, 0x40, 0x80, 0xC0, 0, 0, 0, 0
};

/*
 * The Address Translation code is used to convert I/O register addresses to
 * be relative to the given base -register
 */

int      	pas_translate_code = 0;
static int      pas_intr_mask;
static int      pas_irq;
static int      pas_sb_base;
DEFINE_SPINLOCK(pas_lock);
#ifndef CONFIG_PAS_JOYSTICK
static bool	joystick;
#else
static bool 	joystick = 1;
#endif
#ifdef SYMPHONY_PAS
static bool 	symphony = 1;
#else
static bool 	symphony;
#endif
#ifdef BROKEN_BUS_CLOCK
static bool	broken_bus_clock = 1;
#else
static bool	broken_bus_clock;
#endif

static struct address_info cfg;
static struct address_info cfg2;

char            pas_model = 0;
static char    *pas_model_names[] = {
	"", 
	"Pro AudioSpectrum+", 
	"CDPC", 
	"Pro AudioSpectrum 16", 
	"Pro AudioSpectrum 16D"
};

/*
 * pas_read() and pas_write() are equivalents of inb and outb 
 * These routines perform the I/O address translation required
 * to support other than the default base address
 */

unsigned char pas_read(int ioaddr)
{
	return inb(ioaddr + pas_translate_code);
}

void pas_write(unsigned char data, int ioaddr)
{
	outb((data), ioaddr + pas_translate_code);
}

/******************* Begin of the Interrupt Handler ********************/

static irqreturn_t pasintr(int irq, void *dev_id)
{
	int             status;

	status = pas_read(0x0B89);
	pas_write(status, 0x0B89);	/* Clear interrupt */

	if (status & 0x08)
	{
		  pas_pcm_interrupt(status, 1);
		  status &= ~0x08;
	}
	if (status & 0x10)
	{
		  pas_midi_interrupt();
		  status &= ~0x10;
	}
	return IRQ_HANDLED;
}

int pas_set_intr(int mask)
{
	if (!mask)
		return 0;

	pas_intr_mask |= mask;

	pas_write(pas_intr_mask, 0x0B8B);
	return 0;
}

int pas_remove_intr(int mask)
{
	if (!mask)
		return 0;

	pas_intr_mask &= ~mask;
	pas_write(pas_intr_mask, 0x0B8B);

	return 0;
}

/******************* End of the Interrupt handler **********************/

/******************* Begin of the Initialization Code ******************/

static int __init config_pas_hw(struct address_info *hw_config)
{
	char            ok = 1;
	unsigned        int_ptrs;	/* scsi/sound interrupt pointers */

	pas_irq = hw_config->irq;

	pas_write(0x00, 0x0B8B);
	pas_write(0x36, 0x138B);
	pas_write(0x36, 0x1388);
	pas_write(0, 0x1388);
	pas_write(0x74, 0x138B);
	pas_write(0x74, 0x1389);
	pas_write(0, 0x1389);

	pas_write(0x80 | 0x40 | 0x20 | 1, 0x0B8A);
	pas_write(0x80 | 0x20 | 0x10 | 0x08 | 0x01, 0xF8A);
	pas_write(0x01 | 0x02 | 0x04 | 0x10	/*
						 * |
						 * 0x80
						 */ , 0xB88);

	pas_write(0x80 | (joystick ? 0x40 : 0), 0xF388);

	if (pas_irq < 0 || pas_irq > 15)
	{
		printk(KERN_ERR "PAS16: Invalid IRQ %d", pas_irq);
		hw_config->irq=-1;
		ok = 0;
	}
	else
	{
		int_ptrs = pas_read(0xF38A);
		int_ptrs = (int_ptrs & 0xf0) | irq_bits[pas_irq];
		pas_write(int_ptrs, 0xF38A);
		if (!irq_bits[pas_irq])
		{
			printk(KERN_ERR "PAS16: Invalid IRQ %d", pas_irq);
			hw_config->irq=-1;
			ok = 0;
		}
		else
		{
			if (request_irq(pas_irq, pasintr, 0, "PAS16",hw_config) < 0) {
				printk(KERN_ERR "PAS16: Cannot allocate IRQ %d\n",pas_irq);
				hw_config->irq=-1;
				ok = 0;
			}
		}
	}

	if (hw_config->dma < 0 || hw_config->dma > 7)
	{
		printk(KERN_ERR "PAS16: Invalid DMA selection %d", hw_config->dma);
		hw_config->dma=-1;
		ok = 0;
	}
	else
	{
		pas_write(dma_bits[hw_config->dma], 0xF389);
		if (!dma_bits[hw_config->dma])
		{
			printk(KERN_ERR "PAS16: Invalid DMA selection %d", hw_config->dma);
			hw_config->dma=-1;
			ok = 0;
		}
		else
		{
			if (sound_alloc_dma(hw_config->dma, "PAS16"))
			{
				printk(KERN_ERR "pas2_card.c: Can't allocate DMA channel\n");
				hw_config->dma=-1;
				ok = 0;
			}
		}
	}

	/*
	 * This fixes the timing problems of the PAS due to the Symphony chipset
	 * as per Media Vision.  Only define this if your PAS doesn't work correctly.
	 */

	if(symphony)
	{
		outb((0x05), 0xa8);
		outb((0x60), 0xa9);
	}

	if(broken_bus_clock)
		pas_write(0x01 | 0x10 | 0x20 | 0x04, 0x8388);
	else
		/*
		 * pas_write(0x01, 0x8388);
		 */
		pas_write(0x01 | 0x10 | 0x20, 0x8388);

	pas_write(0x18, 0x838A);	/* ??? */
	pas_write(0x20 | 0x01, 0x0B8A);		/* Mute off, filter = 17.897 kHz */
	pas_write(8, 0xBF8A);

	mix_write(0x80 | 5, 0x078B);
	mix_write(5, 0x078B);

	{
		struct address_info *sb_config;

		sb_config = &cfg2;
		if (sb_config->io_base)
		{
			unsigned char   irq_dma;

			/*
			 * Turn on Sound Blaster compatibility
			 * bit 1 = SB emulation
			 * bit 0 = MPU401 emulation (CDPC only :-( )
			 */
			
			pas_write(0x02, 0xF788);

			/*
			 * "Emulation address"
			 */
			
			pas_write((sb_config->io_base >> 4) & 0x0f, 0xF789);
			pas_sb_base = sb_config->io_base;

			if (!sb_dma_bits[sb_config->dma])
				printk(KERN_ERR "PAS16 Warning: Invalid SB DMA %d\n\n", sb_config->dma);

			if (!sb_irq_bits[sb_config->irq])
				printk(KERN_ERR "PAS16 Warning: Invalid SB IRQ %d\n\n", sb_config->irq);

			irq_dma = sb_dma_bits[sb_config->dma] |
				sb_irq_bits[sb_config->irq];

			pas_write(irq_dma, 0xFB8A);
		}
		else
			pas_write(0x00, 0xF788);
	}

	if (!ok)
		printk(KERN_WARNING "PAS16: Driver not enabled\n");

	return ok;
}

static int __init detect_pas_hw(struct address_info *hw_config)
{
	unsigned char   board_id, foo;

	/*
	 * WARNING: Setting an option like W:1 or so that disables warm boot reset
	 * of the card will screw up this detect code something fierce. Adding code
	 * to handle this means possibly interfering with other cards on the bus if
	 * you have something on base port 0x388. SO be forewarned.
	 */

	outb((0xBC), 0x9A01);	/* Activate first board */
	outb((hw_config->io_base >> 2), 0x9A01);	/* Set base address */
	pas_translate_code = hw_config->io_base - 0x388;
	pas_write(1, 0xBF88);	/* Select one wait states */

	board_id = pas_read(0x0B8B);

	if (board_id == 0xff)
		return 0;

	/*
	 * We probably have a PAS-series board, now check for a PAS16-series board
	 * by trying to change the board revision bits. PAS16-series hardware won't
	 * let you do this - the bits are read-only.
	 */

	foo = board_id ^ 0xe0;

	pas_write(foo, 0x0B8B);
	foo = pas_read(0x0B8B);
	pas_write(board_id, 0x0B8B);

	if (board_id != foo)
		return 0;

	pas_model = pas_read(0xFF88);

	return pas_model;
}

static void __init attach_pas_card(struct address_info *hw_config)
{
	pas_irq = hw_config->irq;

	if (detect_pas_hw(hw_config))
	{

		if ((pas_model = pas_read(0xFF88)))
		{
			char            temp[100];

			if (pas_model < 0 ||
			    pas_model >= ARRAY_SIZE(pas_model_names)) {
				printk(KERN_ERR "pas2 unrecognized model.\n");
				return;
			}
			sprintf(temp,
			    "%s rev %d", pas_model_names[(int) pas_model],
				    pas_read(0x2789));
			conf_printf(temp, hw_config);
		}
		if (config_pas_hw(hw_config))
		{
			pas_pcm_init(hw_config);
			pas_midi_init();
			pas_init_mixer();
		}
	}
}

static inline int __init probe_pas(struct address_info *hw_config)
{
	return detect_pas_hw(hw_config);
}

static void __exit unload_pas(struct address_info *hw_config)
{
	extern int pas_audiodev;
	extern int pas2_mididev;

	if (hw_config->dma>0)
		sound_free_dma(hw_config->dma);
	if (hw_config->irq>0)
		free_irq(hw_config->irq, hw_config);

	if(pas_audiodev!=-1)
		sound_unload_mixerdev(audio_devs[pas_audiodev]->mixer_dev);
	if(pas2_mididev!=-1)
	        sound_unload_mididev(pas2_mididev);
	if(pas_audiodev!=-1)
		sound_unload_audiodev(pas_audiodev);
}

static int __initdata io	= -1;
static int __initdata irq	= -1;
static int __initdata dma	= -1;
static int __initdata dma16	= -1;	/* Set this for modules that need it */

static int __initdata sb_io	= 0;
static int __initdata sb_irq	= -1;
static int __initdata sb_dma	= -1;
static int __initdata sb_dma16	= -1;

module_param(io, int, 0);
module_param(irq, int, 0);
module_param(dma, int, 0);
module_param(dma16, int, 0);

module_param(sb_io, int, 0);
module_param(sb_irq, int, 0);
module_param(sb_dma, int, 0);
module_param(sb_dma16, int, 0);

module_param(joystick, bool, 0);
module_param(symphony, bool, 0);
module_param(broken_bus_clock, bool, 0);

MODULE_LICENSE("GPL");

static int __init init_pas2(void)
{
	printk(KERN_INFO "Pro Audio Spectrum driver Copyright (C) by Hannu Savolainen 1993-1996\n");

	cfg.io_base = io;
	cfg.irq = irq;
	cfg.dma = dma;
	cfg.dma2 = dma16;

	cfg2.io_base = sb_io;
	cfg2.irq = sb_irq;
	cfg2.dma = sb_dma;
	cfg2.dma2 = sb_dma16;

	if (cfg.io_base == -1 || cfg.dma == -1 || cfg.irq == -1) {
		printk(KERN_INFO "I/O, IRQ, DMA and type are mandatory\n");
		return -EINVAL;
	}

	if (!probe_pas(&cfg))
		return -ENODEV;
	attach_pas_card(&cfg);

	return 0;
}

static void __exit cleanup_pas2(void)
{
	unload_pas(&cfg);
}

module_init(init_pas2);
module_exit(cleanup_pas2);

#ifndef MODULE
static int __init setup_pas2(char *str)
{
	/* io, irq, dma, dma2, sb_io, sb_irq, sb_dma, sb_dma2 */
	int ints[9];
	
	str = get_options(str, ARRAY_SIZE(ints), ints);

	io	= ints[1];
	irq	= ints[2];
	dma	= ints[3];
	dma16	= ints[4];

	sb_io	= ints[5];
	sb_irq	= ints[6];
	sb_dma	= ints[7];
	sb_dma16 = ints[8];

	return 1;
}

__setup("pas2=", setup_pas2);
#endif