1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Routines for Gravis UltraSound soundcards
4 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
5 */
6
7 #include <linux/init.h>
8 #include <linux/interrupt.h>
9 #include <linux/delay.h>
10 #include <linux/slab.h>
11 #include <linux/ioport.h>
12 #include <linux/module.h>
13 #include <sound/core.h>
14 #include <sound/gus.h>
15 #include <sound/control.h>
16
17 #include <asm/dma.h>
18
19 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
20 MODULE_DESCRIPTION("Routines for Gravis UltraSound soundcards");
21 MODULE_LICENSE("GPL");
22
23 static int snd_gus_init_dma_irq(struct snd_gus_card * gus, int latches);
24
snd_gus_use_inc(struct snd_gus_card * gus)25 int snd_gus_use_inc(struct snd_gus_card * gus)
26 {
27 if (!try_module_get(gus->card->module))
28 return 0;
29 return 1;
30 }
31
snd_gus_use_dec(struct snd_gus_card * gus)32 void snd_gus_use_dec(struct snd_gus_card * gus)
33 {
34 module_put(gus->card->module);
35 }
36
snd_gus_joystick_info(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)37 static int snd_gus_joystick_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
38 {
39 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
40 uinfo->count = 1;
41 uinfo->value.integer.min = 0;
42 uinfo->value.integer.max = 31;
43 return 0;
44 }
45
snd_gus_joystick_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)46 static int snd_gus_joystick_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
47 {
48 struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
49
50 ucontrol->value.integer.value[0] = gus->joystick_dac & 31;
51 return 0;
52 }
53
snd_gus_joystick_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)54 static int snd_gus_joystick_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
55 {
56 struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
57 unsigned long flags;
58 int change;
59 unsigned char nval;
60
61 nval = ucontrol->value.integer.value[0] & 31;
62 spin_lock_irqsave(&gus->reg_lock, flags);
63 change = gus->joystick_dac != nval;
64 gus->joystick_dac = nval;
65 snd_gf1_write8(gus, SNDRV_GF1_GB_JOYSTICK_DAC_LEVEL, gus->joystick_dac);
66 spin_unlock_irqrestore(&gus->reg_lock, flags);
67 return change;
68 }
69
70 static const struct snd_kcontrol_new snd_gus_joystick_control = {
71 .iface = SNDRV_CTL_ELEM_IFACE_CARD,
72 .name = "Joystick Speed",
73 .info = snd_gus_joystick_info,
74 .get = snd_gus_joystick_get,
75 .put = snd_gus_joystick_put
76 };
77
snd_gus_init_control(struct snd_gus_card * gus)78 static void snd_gus_init_control(struct snd_gus_card *gus)
79 {
80 if (!gus->ace_flag)
81 snd_ctl_add(gus->card, snd_ctl_new1(&snd_gus_joystick_control, gus));
82 }
83
84 /*
85 *
86 */
87
snd_gus_free(struct snd_gus_card * gus)88 static int snd_gus_free(struct snd_gus_card *gus)
89 {
90 if (gus->gf1.res_port2 == NULL)
91 goto __hw_end;
92 snd_gf1_stop(gus);
93 snd_gus_init_dma_irq(gus, 0);
94 __hw_end:
95 release_and_free_resource(gus->gf1.res_port1);
96 release_and_free_resource(gus->gf1.res_port2);
97 if (gus->gf1.irq >= 0)
98 free_irq(gus->gf1.irq, (void *) gus);
99 if (gus->gf1.dma1 >= 0) {
100 disable_dma(gus->gf1.dma1);
101 free_dma(gus->gf1.dma1);
102 }
103 if (!gus->equal_dma && gus->gf1.dma2 >= 0) {
104 disable_dma(gus->gf1.dma2);
105 free_dma(gus->gf1.dma2);
106 }
107 kfree(gus);
108 return 0;
109 }
110
snd_gus_dev_free(struct snd_device * device)111 static int snd_gus_dev_free(struct snd_device *device)
112 {
113 struct snd_gus_card *gus = device->device_data;
114 return snd_gus_free(gus);
115 }
116
snd_gus_create(struct snd_card * card,unsigned long port,int irq,int dma1,int dma2,int timer_dev,int voices,int pcm_channels,int effect,struct snd_gus_card ** rgus)117 int snd_gus_create(struct snd_card *card,
118 unsigned long port,
119 int irq, int dma1, int dma2,
120 int timer_dev,
121 int voices,
122 int pcm_channels,
123 int effect,
124 struct snd_gus_card **rgus)
125 {
126 struct snd_gus_card *gus;
127 int err;
128 static const struct snd_device_ops ops = {
129 .dev_free = snd_gus_dev_free,
130 };
131
132 *rgus = NULL;
133 gus = kzalloc(sizeof(*gus), GFP_KERNEL);
134 if (gus == NULL)
135 return -ENOMEM;
136 spin_lock_init(&gus->reg_lock);
137 spin_lock_init(&gus->voice_alloc);
138 spin_lock_init(&gus->active_voice_lock);
139 spin_lock_init(&gus->event_lock);
140 spin_lock_init(&gus->dma_lock);
141 spin_lock_init(&gus->pcm_volume_level_lock);
142 spin_lock_init(&gus->uart_cmd_lock);
143 mutex_init(&gus->dma_mutex);
144 gus->gf1.irq = -1;
145 gus->gf1.dma1 = -1;
146 gus->gf1.dma2 = -1;
147 gus->card = card;
148 gus->gf1.port = port;
149 /* fill register variables for speedup */
150 gus->gf1.reg_page = GUSP(gus, GF1PAGE);
151 gus->gf1.reg_regsel = GUSP(gus, GF1REGSEL);
152 gus->gf1.reg_data8 = GUSP(gus, GF1DATAHIGH);
153 gus->gf1.reg_data16 = GUSP(gus, GF1DATALOW);
154 gus->gf1.reg_irqstat = GUSP(gus, IRQSTAT);
155 gus->gf1.reg_dram = GUSP(gus, DRAM);
156 gus->gf1.reg_timerctrl = GUSP(gus, TIMERCNTRL);
157 gus->gf1.reg_timerdata = GUSP(gus, TIMERDATA);
158 /* allocate resources */
159 gus->gf1.res_port1 = request_region(port, 16, "GUS GF1 (Adlib/SB)");
160 if (!gus->gf1.res_port1) {
161 snd_printk(KERN_ERR "gus: can't grab SB port 0x%lx\n", port);
162 snd_gus_free(gus);
163 return -EBUSY;
164 }
165 gus->gf1.res_port2 = request_region(port + 0x100, 12, "GUS GF1 (Synth)");
166 if (!gus->gf1.res_port2) {
167 snd_printk(KERN_ERR "gus: can't grab synth port 0x%lx\n", port + 0x100);
168 snd_gus_free(gus);
169 return -EBUSY;
170 }
171 if (irq >= 0 && request_irq(irq, snd_gus_interrupt, 0, "GUS GF1", (void *) gus)) {
172 snd_printk(KERN_ERR "gus: can't grab irq %d\n", irq);
173 snd_gus_free(gus);
174 return -EBUSY;
175 }
176 gus->gf1.irq = irq;
177 card->sync_irq = irq;
178 if (request_dma(dma1, "GUS - 1")) {
179 snd_printk(KERN_ERR "gus: can't grab DMA1 %d\n", dma1);
180 snd_gus_free(gus);
181 return -EBUSY;
182 }
183 gus->gf1.dma1 = dma1;
184 if (dma2 >= 0 && dma1 != dma2) {
185 if (request_dma(dma2, "GUS - 2")) {
186 snd_printk(KERN_ERR "gus: can't grab DMA2 %d\n", dma2);
187 snd_gus_free(gus);
188 return -EBUSY;
189 }
190 gus->gf1.dma2 = dma2;
191 } else {
192 gus->gf1.dma2 = gus->gf1.dma1;
193 gus->equal_dma = 1;
194 }
195 gus->timer_dev = timer_dev;
196 if (voices < 14)
197 voices = 14;
198 if (voices > 32)
199 voices = 32;
200 if (pcm_channels < 0)
201 pcm_channels = 0;
202 if (pcm_channels > 8)
203 pcm_channels = 8;
204 pcm_channels++;
205 pcm_channels &= ~1;
206 gus->gf1.effect = effect ? 1 : 0;
207 gus->gf1.active_voices = voices;
208 gus->gf1.pcm_channels = pcm_channels;
209 gus->gf1.volume_ramp = 25;
210 gus->gf1.smooth_pan = 1;
211 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, gus, &ops);
212 if (err < 0) {
213 snd_gus_free(gus);
214 return err;
215 }
216 *rgus = gus;
217 return 0;
218 }
219
220 /*
221 * Memory detection routine for plain GF1 soundcards
222 */
223
snd_gus_detect_memory(struct snd_gus_card * gus)224 static int snd_gus_detect_memory(struct snd_gus_card * gus)
225 {
226 int l, idx, local;
227 unsigned char d;
228
229 snd_gf1_poke(gus, 0L, 0xaa);
230 snd_gf1_poke(gus, 1L, 0x55);
231 if (snd_gf1_peek(gus, 0L) != 0xaa || snd_gf1_peek(gus, 1L) != 0x55) {
232 snd_printk(KERN_ERR "plain GF1 card at 0x%lx without onboard DRAM?\n", gus->gf1.port);
233 return -ENOMEM;
234 }
235 for (idx = 1, d = 0xab; idx < 4; idx++, d++) {
236 local = idx << 18;
237 snd_gf1_poke(gus, local, d);
238 snd_gf1_poke(gus, local + 1, d + 1);
239 if (snd_gf1_peek(gus, local) != d ||
240 snd_gf1_peek(gus, local + 1) != d + 1 ||
241 snd_gf1_peek(gus, 0L) != 0xaa)
242 break;
243 }
244 #if 1
245 gus->gf1.memory = idx << 18;
246 #else
247 gus->gf1.memory = 256 * 1024;
248 #endif
249 for (l = 0, local = gus->gf1.memory; l < 4; l++, local -= 256 * 1024) {
250 gus->gf1.mem_alloc.banks_8[l].address =
251 gus->gf1.mem_alloc.banks_8[l].size = 0;
252 gus->gf1.mem_alloc.banks_16[l].address = l << 18;
253 gus->gf1.mem_alloc.banks_16[l].size = local > 0 ? 256 * 1024 : 0;
254 }
255 gus->gf1.mem_alloc.banks_8[0].size = gus->gf1.memory;
256 return 0; /* some memory were detected */
257 }
258
snd_gus_init_dma_irq(struct snd_gus_card * gus,int latches)259 static int snd_gus_init_dma_irq(struct snd_gus_card * gus, int latches)
260 {
261 struct snd_card *card;
262 unsigned long flags;
263 int irq, dma1, dma2;
264 static const unsigned char irqs[16] =
265 {0, 0, 1, 3, 0, 2, 0, 4, 0, 1, 0, 5, 6, 0, 0, 7};
266 static const unsigned char dmas[8] =
267 {6, 1, 0, 2, 0, 3, 4, 5};
268
269 if (snd_BUG_ON(!gus))
270 return -EINVAL;
271 card = gus->card;
272 if (snd_BUG_ON(!card))
273 return -EINVAL;
274
275 gus->mix_cntrl_reg &= 0xf8;
276 gus->mix_cntrl_reg |= 0x01; /* disable MIC, LINE IN, enable LINE OUT */
277 if (gus->codec_flag || gus->ess_flag) {
278 gus->mix_cntrl_reg &= ~1; /* enable LINE IN */
279 gus->mix_cntrl_reg |= 4; /* enable MIC */
280 }
281 dma1 = gus->gf1.dma1;
282 dma1 = abs(dma1);
283 dma1 = dmas[dma1 & 7];
284 dma2 = gus->gf1.dma2;
285 dma2 = abs(dma2);
286 dma2 = dmas[dma2 & 7];
287 dma1 |= gus->equal_dma ? 0x40 : (dma2 << 3);
288
289 if ((dma1 & 7) == 0 || (dma2 & 7) == 0) {
290 snd_printk(KERN_ERR "Error! DMA isn't defined.\n");
291 return -EINVAL;
292 }
293 irq = gus->gf1.irq;
294 irq = abs(irq);
295 irq = irqs[irq & 0x0f];
296 if (irq == 0) {
297 snd_printk(KERN_ERR "Error! IRQ isn't defined.\n");
298 return -EINVAL;
299 }
300 irq |= 0x40;
301 #if 0
302 card->mixer.mix_ctrl_reg |= 0x10;
303 #endif
304
305 spin_lock_irqsave(&gus->reg_lock, flags);
306 outb(5, GUSP(gus, REGCNTRLS));
307 outb(gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
308 outb(0x00, GUSP(gus, IRQDMACNTRLREG));
309 outb(0, GUSP(gus, REGCNTRLS));
310 spin_unlock_irqrestore(&gus->reg_lock, flags);
311
312 udelay(100);
313
314 spin_lock_irqsave(&gus->reg_lock, flags);
315 outb(0x00 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
316 outb(dma1, GUSP(gus, IRQDMACNTRLREG));
317 if (latches) {
318 outb(0x40 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
319 outb(irq, GUSP(gus, IRQDMACNTRLREG));
320 }
321 spin_unlock_irqrestore(&gus->reg_lock, flags);
322
323 udelay(100);
324
325 spin_lock_irqsave(&gus->reg_lock, flags);
326 outb(0x00 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
327 outb(dma1, GUSP(gus, IRQDMACNTRLREG));
328 if (latches) {
329 outb(0x40 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
330 outb(irq, GUSP(gus, IRQDMACNTRLREG));
331 }
332 spin_unlock_irqrestore(&gus->reg_lock, flags);
333
334 snd_gf1_delay(gus);
335
336 if (latches)
337 gus->mix_cntrl_reg |= 0x08; /* enable latches */
338 else
339 gus->mix_cntrl_reg &= ~0x08; /* disable latches */
340 spin_lock_irqsave(&gus->reg_lock, flags);
341 outb(gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
342 outb(0, GUSP(gus, GF1PAGE));
343 spin_unlock_irqrestore(&gus->reg_lock, flags);
344
345 return 0;
346 }
347
snd_gus_check_version(struct snd_gus_card * gus)348 static int snd_gus_check_version(struct snd_gus_card * gus)
349 {
350 unsigned long flags;
351 unsigned char val, rev;
352 struct snd_card *card;
353
354 card = gus->card;
355 spin_lock_irqsave(&gus->reg_lock, flags);
356 outb(0x20, GUSP(gus, REGCNTRLS));
357 val = inb(GUSP(gus, REGCNTRLS));
358 rev = inb(GUSP(gus, BOARDVERSION));
359 spin_unlock_irqrestore(&gus->reg_lock, flags);
360 snd_printdd("GF1 [0x%lx] init - val = 0x%x, rev = 0x%x\n", gus->gf1.port, val, rev);
361 strcpy(card->driver, "GUS");
362 strcpy(card->longname, "Gravis UltraSound Classic (2.4)");
363 if ((val != 255 && (val & 0x06)) || (rev >= 5 && rev != 255)) {
364 if (rev >= 5 && rev <= 9) {
365 gus->ics_flag = 1;
366 if (rev == 5)
367 gus->ics_flipped = 1;
368 card->longname[27] = '3';
369 card->longname[29] = rev == 5 ? '5' : '7';
370 }
371 if (rev >= 10 && rev != 255) {
372 if (rev >= 10 && rev <= 11) {
373 strcpy(card->driver, "GUS MAX");
374 strcpy(card->longname, "Gravis UltraSound MAX");
375 gus->max_flag = 1;
376 } else if (rev == 0x30) {
377 strcpy(card->driver, "GUS ACE");
378 strcpy(card->longname, "Gravis UltraSound Ace");
379 gus->ace_flag = 1;
380 } else if (rev == 0x50) {
381 strcpy(card->driver, "GUS Extreme");
382 strcpy(card->longname, "Gravis UltraSound Extreme");
383 gus->ess_flag = 1;
384 } else {
385 snd_printk(KERN_ERR "unknown GF1 revision number at 0x%lx - 0x%x (0x%x)\n", gus->gf1.port, rev, val);
386 snd_printk(KERN_ERR " please - report to <perex@perex.cz>\n");
387 }
388 }
389 }
390 strscpy(card->shortname, card->longname, sizeof(card->shortname));
391 gus->uart_enable = 1; /* standard GUSes doesn't have midi uart trouble */
392 snd_gus_init_control(gus);
393 return 0;
394 }
395
snd_gus_initialize(struct snd_gus_card * gus)396 int snd_gus_initialize(struct snd_gus_card *gus)
397 {
398 int err;
399
400 if (!gus->interwave) {
401 err = snd_gus_check_version(gus);
402 if (err < 0) {
403 snd_printk(KERN_ERR "version check failed\n");
404 return err;
405 }
406 err = snd_gus_detect_memory(gus);
407 if (err < 0)
408 return err;
409 }
410 err = snd_gus_init_dma_irq(gus, 1);
411 if (err < 0)
412 return err;
413 snd_gf1_start(gus);
414 gus->initialized = 1;
415 return 0;
416 }
417
418 /* gus_io.c */
419 EXPORT_SYMBOL(snd_gf1_delay);
420 EXPORT_SYMBOL(snd_gf1_write8);
421 EXPORT_SYMBOL(snd_gf1_look8);
422 EXPORT_SYMBOL(snd_gf1_write16);
423 EXPORT_SYMBOL(snd_gf1_look16);
424 EXPORT_SYMBOL(snd_gf1_i_write8);
425 EXPORT_SYMBOL(snd_gf1_i_look8);
426 EXPORT_SYMBOL(snd_gf1_i_look16);
427 EXPORT_SYMBOL(snd_gf1_dram_addr);
428 EXPORT_SYMBOL(snd_gf1_write_addr);
429 EXPORT_SYMBOL(snd_gf1_poke);
430 EXPORT_SYMBOL(snd_gf1_peek);
431 /* gus_reset.c */
432 EXPORT_SYMBOL(snd_gf1_alloc_voice);
433 EXPORT_SYMBOL(snd_gf1_free_voice);
434 EXPORT_SYMBOL(snd_gf1_ctrl_stop);
435 EXPORT_SYMBOL(snd_gf1_stop_voice);
436 /* gus_mixer.c */
437 EXPORT_SYMBOL(snd_gf1_new_mixer);
438 /* gus_pcm.c */
439 EXPORT_SYMBOL(snd_gf1_pcm_new);
440 /* gus.c */
441 EXPORT_SYMBOL(snd_gus_use_inc);
442 EXPORT_SYMBOL(snd_gus_use_dec);
443 EXPORT_SYMBOL(snd_gus_create);
444 EXPORT_SYMBOL(snd_gus_initialize);
445 /* gus_irq.c */
446 EXPORT_SYMBOL(snd_gus_interrupt);
447 /* gus_uart.c */
448 EXPORT_SYMBOL(snd_gf1_rawmidi_new);
449 /* gus_dram.c */
450 EXPORT_SYMBOL(snd_gus_dram_write);
451 EXPORT_SYMBOL(snd_gus_dram_read);
452 /* gus_volume.c */
453 EXPORT_SYMBOL(snd_gf1_lvol_to_gvol_raw);
454 EXPORT_SYMBOL(snd_gf1_translate_freq);
455 /* gus_mem.c */
456 EXPORT_SYMBOL(snd_gf1_mem_alloc);
457 EXPORT_SYMBOL(snd_gf1_mem_xfree);
458 EXPORT_SYMBOL(snd_gf1_mem_free);
459 EXPORT_SYMBOL(snd_gf1_mem_lock);
460
