1 /*
2 * sound/pas2_card.c
3 *
4 * Detection routine for the Pro Audio Spectrum cards.
5 */
6
7 #include <linux/config.h>
8 #include <linux/init.h>
9 #include <linux/interrupt.h>
10 #include <linux/module.h>
11 #include <linux/spinlock.h>
12 #include "sound_config.h"
13
14 #include "pas2.h"
15 #include "sb.h"
16
17 static unsigned char dma_bits[] = {
18 4, 1, 2, 3, 0, 5, 6, 7
19 };
20
21 static unsigned char irq_bits[] = {
22 0, 0, 1, 2, 3, 4, 5, 6, 0, 1, 7, 8, 9, 0, 10, 11
23 };
24
25 static unsigned char sb_irq_bits[] = {
26 0x00, 0x00, 0x08, 0x10, 0x00, 0x18, 0x00, 0x20,
27 0x00, 0x08, 0x28, 0x30, 0x38, 0, 0
28 };
29
30 static unsigned char sb_dma_bits[] = {
31 0x00, 0x40, 0x80, 0xC0, 0, 0, 0, 0
32 };
33
34 /*
35 * The Address Translation code is used to convert I/O register addresses to
36 * be relative to the given base -register
37 */
38
39 int pas_translate_code = 0;
40 static int pas_intr_mask;
41 static int pas_irq;
42 static int pas_sb_base;
43 DEFINE_SPINLOCK(pas_lock);
44 #ifndef CONFIG_PAS_JOYSTICK
45 static int joystick;
46 #else
47 static int joystick = 1;
48 #endif
49 #ifdef SYMPHONY_PAS
50 static int symphony = 1;
51 #else
52 static int symphony;
53 #endif
54 #ifdef BROKEN_BUS_CLOCK
55 static int broken_bus_clock = 1;
56 #else
57 static int broken_bus_clock;
58 #endif
59
60 static struct address_info cfg;
61 static struct address_info cfg2;
62
63 char pas_model = 0;
64 static char *pas_model_names[] = {
65 "",
66 "Pro AudioSpectrum+",
67 "CDPC",
68 "Pro AudioSpectrum 16",
69 "Pro AudioSpectrum 16D"
70 };
71
72 /*
73 * pas_read() and pas_write() are equivalents of inb and outb
74 * These routines perform the I/O address translation required
75 * to support other than the default base address
76 */
77
78 extern void mix_write(unsigned char data, int ioaddr);
79
80 unsigned char pas_read(int ioaddr)
81 {
82 return inb(ioaddr + pas_translate_code);
83 }
84
85 void pas_write(unsigned char data, int ioaddr)
86 {
87 outb((data), ioaddr + pas_translate_code);
88 }
89
90 /******************* Begin of the Interrupt Handler ********************/
91
92 static irqreturn_t pasintr(int irq, void *dev_id, struct pt_regs *dummy)
93 {
94 int status;
95
96 status = pas_read(0x0B89);
97 pas_write(status, 0x0B89); /* Clear interrupt */
98
99 if (status & 0x08)
100 {
101 pas_pcm_interrupt(status, 1);
102 status &= ~0x08;
103 }
104 if (status & 0x10)
105 {
106 pas_midi_interrupt();
107 status &= ~0x10;
108 }
109 return IRQ_HANDLED;
110 }
111
112 int pas_set_intr(int mask)
113 {
114 if (!mask)
115 return 0;
116
117 pas_intr_mask |= mask;
118
119 pas_write(pas_intr_mask, 0x0B8B);
120 return 0;
121 }
122
123 int pas_remove_intr(int mask)
124 {
125 if (!mask)
126 return 0;
127
128 pas_intr_mask &= ~mask;
129 pas_write(pas_intr_mask, 0x0B8B);
130
131 return 0;
132 }
133
134 /******************* End of the Interrupt handler **********************/
135
136 /******************* Begin of the Initialization Code ******************/
137
138 static int __init config_pas_hw(struct address_info *hw_config)
139 {
140 char ok = 1;
141 unsigned int_ptrs; /* scsi/sound interrupt pointers */
142
143 pas_irq = hw_config->irq;
144
145 pas_write(0x00, 0x0B8B);
146 pas_write(0x36, 0x138B);
147 pas_write(0x36, 0x1388);
148 pas_write(0, 0x1388);
149 pas_write(0x74, 0x138B);
150 pas_write(0x74, 0x1389);
151 pas_write(0, 0x1389);
152
153 pas_write(0x80 | 0x40 | 0x20 | 1, 0x0B8A);
154 pas_write(0x80 | 0x20 | 0x10 | 0x08 | 0x01, 0xF8A);
155 pas_write(0x01 | 0x02 | 0x04 | 0x10 /*
156 * |
157 * 0x80
158 */ , 0xB88);
159
160 pas_write(0x80
161 | joystick?0x40:0
162 ,0xF388);
163
164 if (pas_irq < 0 || pas_irq > 15)
165 {
166 printk(KERN_ERR "PAS16: Invalid IRQ %d", pas_irq);
167 hw_config->irq=-1;
168 ok = 0;
169 }
170 else
171 {
172 int_ptrs = pas_read(0xF38A);
173 int_ptrs = (int_ptrs & 0xf0) | irq_bits[pas_irq];
174 pas_write(int_ptrs, 0xF38A);
175 if (!irq_bits[pas_irq])
176 {
177 printk(KERN_ERR "PAS16: Invalid IRQ %d", pas_irq);
178 hw_config->irq=-1;
179 ok = 0;
180 }
181 else
182 {
183 if (request_irq(pas_irq, pasintr, 0, "PAS16",hw_config) < 0) {
184 printk(KERN_ERR "PAS16: Cannot allocate IRQ %d\n",pas_irq);
185 hw_config->irq=-1;
186 ok = 0;
187 }
188 }
189 }
190
191 if (hw_config->dma < 0 || hw_config->dma > 7)
192 {
193 printk(KERN_ERR "PAS16: Invalid DMA selection %d", hw_config->dma);
194 hw_config->dma=-1;
195 ok = 0;
196 }
197 else
198 {
199 pas_write(dma_bits[hw_config->dma], 0xF389);
200 if (!dma_bits[hw_config->dma])
201 {
202 printk(KERN_ERR "PAS16: Invalid DMA selection %d", hw_config->dma);
203 hw_config->dma=-1;
204 ok = 0;
205 }
206 else
207 {
208 if (sound_alloc_dma(hw_config->dma, "PAS16"))
209 {
210 printk(KERN_ERR "pas2_card.c: Can't allocate DMA channel\n");
211 hw_config->dma=-1;
212 ok = 0;
213 }
214 }
215 }
216
217 /*
218 * This fixes the timing problems of the PAS due to the Symphony chipset
219 * as per Media Vision. Only define this if your PAS doesn't work correctly.
220 */
221
222 if(symphony)
223 {
224 outb((0x05), 0xa8);
225 outb((0x60), 0xa9);
226 }
227
228 if(broken_bus_clock)
229 pas_write(0x01 | 0x10 | 0x20 | 0x04, 0x8388);
230 else
231 /*
232 * pas_write(0x01, 0x8388);
233 */
234 pas_write(0x01 | 0x10 | 0x20, 0x8388);
235
236 pas_write(0x18, 0x838A); /* ??? */
237 pas_write(0x20 | 0x01, 0x0B8A); /* Mute off, filter = 17.897 kHz */
238 pas_write(8, 0xBF8A);
239
240 mix_write(0x80 | 5, 0x078B);
241 mix_write(5, 0x078B);
242
243 {
244 struct address_info *sb_config;
245
246 sb_config = &cfg2;
247 if (sb_config->io_base)
248 {
249 unsigned char irq_dma;
250
251 /*
252 * Turn on Sound Blaster compatibility
253 * bit 1 = SB emulation
254 * bit 0 = MPU401 emulation (CDPC only :-( )
255 */
256
257 pas_write(0x02, 0xF788);
258
259 /*
260 * "Emulation address"
261 */
262
263 pas_write((sb_config->io_base >> 4) & 0x0f, 0xF789);
264 pas_sb_base = sb_config->io_base;
265
266 if (!sb_dma_bits[sb_config->dma])
267 printk(KERN_ERR "PAS16 Warning: Invalid SB DMA %d\n\n", sb_config->dma);
268
269 if (!sb_irq_bits[sb_config->irq])
270 printk(KERN_ERR "PAS16 Warning: Invalid SB IRQ %d\n\n", sb_config->irq);
271
272 irq_dma = sb_dma_bits[sb_config->dma] |
273 sb_irq_bits[sb_config->irq];
274
275 pas_write(irq_dma, 0xFB8A);
276 }
277 else
278 pas_write(0x00, 0xF788);
279 }
280
281 if (!ok)
282 printk(KERN_WARNING "PAS16: Driver not enabled\n");
283
284 return ok;
285 }
286
287 static int __init detect_pas_hw(struct address_info *hw_config)
288 {
289 unsigned char board_id, foo;
290
291 /*
292 * WARNING: Setting an option like W:1 or so that disables warm boot reset
293 * of the card will screw up this detect code something fierce. Adding code
294 * to handle this means possibly interfering with other cards on the bus if
295 * you have something on base port 0x388. SO be forewarned.
296 */
297
298 outb((0xBC), 0x9A01); /* Activate first board */
299 outb((hw_config->io_base >> 2), 0x9A01); /* Set base address */
300 pas_translate_code = hw_config->io_base - 0x388;
301 pas_write(1, 0xBF88); /* Select one wait states */
302
303 board_id = pas_read(0x0B8B);
304
305 if (board_id == 0xff)
306 return 0;
307
308 /*
309 * We probably have a PAS-series board, now check for a PAS16-series board
310 * by trying to change the board revision bits. PAS16-series hardware won't
311 * let you do this - the bits are read-only.
312 */
313
314 foo = board_id ^ 0xe0;
315
316 pas_write(foo, 0x0B8B);
317 foo = pas_read(0x0B8B);
318 pas_write(board_id, 0x0B8B);
319
320 if (board_id != foo)
321 return 0;
322
323 pas_model = pas_read(0xFF88);
324
325 return pas_model;
326 }
327
328 static void __init attach_pas_card(struct address_info *hw_config)
329 {
330 pas_irq = hw_config->irq;
331
332 if (detect_pas_hw(hw_config))
333 {
334
335 if ((pas_model = pas_read(0xFF88)))
336 {
337 char temp[100];
338
339 sprintf(temp,
340 "%s rev %d", pas_model_names[(int) pas_model],
341 pas_read(0x2789));
342 conf_printf(temp, hw_config);
343 }
344 if (config_pas_hw(hw_config))
345 {
346 pas_pcm_init(hw_config);
347 pas_midi_init();
348 pas_init_mixer();
349 }
350 }
351 }
352
353 static inline int __init probe_pas(struct address_info *hw_config)
354 {
355 return detect_pas_hw(hw_config);
356 }
357
358 static void __exit unload_pas(struct address_info *hw_config)
359 {
360 extern int pas_audiodev;
361 extern int pas2_mididev;
362
363 if (hw_config->dma>0)
364 sound_free_dma(hw_config->dma);
365 if (hw_config->irq>0)
366 free_irq(hw_config->irq, hw_config);
367
368 if(pas_audiodev!=-1)
369 sound_unload_mixerdev(audio_devs[pas_audiodev]->mixer_dev);
370 if(pas2_mididev!=-1)
371 sound_unload_mididev(pas2_mididev);
372 if(pas_audiodev!=-1)
373 sound_unload_audiodev(pas_audiodev);
374 }
375
376 static int __initdata io = -1;
377 static int __initdata irq = -1;
378 static int __initdata dma = -1;
379 static int __initdata dma16 = -1; /* Set this for modules that need it */
380
381 static int __initdata sb_io = 0;
382 static int __initdata sb_irq = -1;
383 static int __initdata sb_dma = -1;
384 static int __initdata sb_dma16 = -1;
385
386 module_param(io, int, 0);
387 module_param(irq, int, 0);
388 module_param(dma, int, 0);
389 module_param(dma16, int, 0);
390
391 module_param(sb_io, int, 0);
392 module_param(sb_irq, int, 0);
393 module_param(sb_dma, int, 0);
394 module_param(sb_dma16, int, 0);
395
396 module_param(joystick, bool, 0);
397 module_param(symphony, bool, 0);
398 module_param(broken_bus_clock, bool, 0);
399
400 MODULE_LICENSE("GPL");
401
402 static int __init init_pas2(void)
403 {
404 printk(KERN_INFO "Pro Audio Spectrum driver Copyright (C) by Hannu Savolainen 1993-1996\n");
405
406 cfg.io_base = io;
407 cfg.irq = irq;
408 cfg.dma = dma;
409 cfg.dma2 = dma16;
410
411 cfg2.io_base = sb_io;
412 cfg2.irq = sb_irq;
413 cfg2.dma = sb_dma;
414 cfg2.dma2 = sb_dma16;
415
416 if (cfg.io_base == -1 || cfg.dma == -1 || cfg.irq == -1) {
417 printk(KERN_INFO "I/O, IRQ, DMA and type are mandatory\n");
418 return -EINVAL;
419 }
420
421 if (!probe_pas(&cfg))
422 return -ENODEV;
423 attach_pas_card(&cfg);
424
425 return 0;
426 }
427
428 static void __exit cleanup_pas2(void)
429 {
430 unload_pas(&cfg);
431 }
432
433 module_init(init_pas2);
434 module_exit(cleanup_pas2);
435
436 #ifndef MODULE
437 static int __init setup_pas2(char *str)
438 {
439 /* io, irq, dma, dma2, sb_io, sb_irq, sb_dma, sb_dma2 */
440 int ints[9];
441
442 str = get_options(str, ARRAY_SIZE(ints), ints);
443
444 io = ints[1];
445 irq = ints[2];
446 dma = ints[3];
447 dma16 = ints[4];
448
449 sb_io = ints[5];
450 sb_irq = ints[6];
451 sb_dma = ints[7];
452 sb_dma16 = ints[8];
453
454 return 1;
455 }
456
457 __setup("pas2=", setup_pas2);
458 #endif
459
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