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Linux/sound/isa/gus/gus_main.c

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  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 
 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 
 32 void snd_gus_use_dec(struct snd_gus_card * gus)
 33 {
 34         module_put(gus->card->module);
 35 }
 36 
 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 
 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 
 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 
 78 static void snd_gus_init_control(struct snd_gus_card *gus)
 79 {
 80         int ret;
 81 
 82         if (!gus->ace_flag) {
 83                 ret =
 84                         snd_ctl_add(gus->card,
 85                                         snd_ctl_new1(&snd_gus_joystick_control,
 86                                                 gus));
 87                 if (ret)
 88                         snd_printk(KERN_ERR "gus: snd_ctl_add failed: %d\n",
 89                                         ret);
 90         }
 91 }
 92 
 93 /*
 94  *
 95  */
 96 
 97 static int snd_gus_free(struct snd_gus_card *gus)
 98 {
 99         if (gus->gf1.res_port2 == NULL)
100                 goto __hw_end;
101         snd_gf1_stop(gus);
102         snd_gus_init_dma_irq(gus, 0);
103       __hw_end:
104         release_and_free_resource(gus->gf1.res_port1);
105         release_and_free_resource(gus->gf1.res_port2);
106         if (gus->gf1.irq >= 0)
107                 free_irq(gus->gf1.irq, (void *) gus);
108         if (gus->gf1.dma1 >= 0) {
109                 disable_dma(gus->gf1.dma1);
110                 free_dma(gus->gf1.dma1);
111         }
112         if (!gus->equal_dma && gus->gf1.dma2 >= 0) {
113                 disable_dma(gus->gf1.dma2);
114                 free_dma(gus->gf1.dma2);
115         }
116         kfree(gus);
117         return 0;
118 }
119 
120 static int snd_gus_dev_free(struct snd_device *device)
121 {
122         struct snd_gus_card *gus = device->device_data;
123         return snd_gus_free(gus);
124 }
125 
126 int snd_gus_create(struct snd_card *card,
127                    unsigned long port,
128                    int irq, int dma1, int dma2,
129                    int timer_dev,
130                    int voices,
131                    int pcm_channels,
132                    int effect,
133                    struct snd_gus_card **rgus)
134 {
135         struct snd_gus_card *gus;
136         int err;
137         static struct snd_device_ops ops = {
138                 .dev_free =     snd_gus_dev_free,
139         };
140 
141         *rgus = NULL;
142         gus = kzalloc(sizeof(*gus), GFP_KERNEL);
143         if (gus == NULL)
144                 return -ENOMEM;
145         spin_lock_init(&gus->reg_lock);
146         spin_lock_init(&gus->voice_alloc);
147         spin_lock_init(&gus->active_voice_lock);
148         spin_lock_init(&gus->event_lock);
149         spin_lock_init(&gus->dma_lock);
150         spin_lock_init(&gus->pcm_volume_level_lock);
151         spin_lock_init(&gus->uart_cmd_lock);
152         mutex_init(&gus->dma_mutex);
153         gus->gf1.irq = -1;
154         gus->gf1.dma1 = -1;
155         gus->gf1.dma2 = -1;
156         gus->card = card;
157         gus->gf1.port = port;
158         /* fill register variables for speedup */
159         gus->gf1.reg_page = GUSP(gus, GF1PAGE);
160         gus->gf1.reg_regsel = GUSP(gus, GF1REGSEL);
161         gus->gf1.reg_data8 = GUSP(gus, GF1DATAHIGH);
162         gus->gf1.reg_data16 = GUSP(gus, GF1DATALOW);
163         gus->gf1.reg_irqstat = GUSP(gus, IRQSTAT);
164         gus->gf1.reg_dram = GUSP(gus, DRAM);
165         gus->gf1.reg_timerctrl = GUSP(gus, TIMERCNTRL);
166         gus->gf1.reg_timerdata = GUSP(gus, TIMERDATA);
167         /* allocate resources */
168         if ((gus->gf1.res_port1 = request_region(port, 16, "GUS GF1 (Adlib/SB)")) == NULL) {
169                 snd_printk(KERN_ERR "gus: can't grab SB port 0x%lx\n", port);
170                 snd_gus_free(gus);
171                 return -EBUSY;
172         }
173         if ((gus->gf1.res_port2 = request_region(port + 0x100, 12, "GUS GF1 (Synth)")) == NULL) {
174                 snd_printk(KERN_ERR "gus: can't grab synth port 0x%lx\n", port + 0x100);
175                 snd_gus_free(gus);
176                 return -EBUSY;
177         }
178         if (irq >= 0 && request_irq(irq, snd_gus_interrupt, 0, "GUS GF1", (void *) gus)) {
179                 snd_printk(KERN_ERR "gus: can't grab irq %d\n", irq);
180                 snd_gus_free(gus);
181                 return -EBUSY;
182         }
183         gus->gf1.irq = irq;
184         if (request_dma(dma1, "GUS - 1")) {
185                 snd_printk(KERN_ERR "gus: can't grab DMA1 %d\n", dma1);
186                 snd_gus_free(gus);
187                 return -EBUSY;
188         }
189         gus->gf1.dma1 = dma1;
190         if (dma2 >= 0 && dma1 != dma2) {
191                 if (request_dma(dma2, "GUS - 2")) {
192                         snd_printk(KERN_ERR "gus: can't grab DMA2 %d\n", dma2);
193                         snd_gus_free(gus);
194                         return -EBUSY;
195                 }
196                 gus->gf1.dma2 = dma2;
197         } else {
198                 gus->gf1.dma2 = gus->gf1.dma1;
199                 gus->equal_dma = 1;
200         }
201         gus->timer_dev = timer_dev;
202         if (voices < 14)
203                 voices = 14;
204         if (voices > 32)
205                 voices = 32;
206         if (pcm_channels < 0)
207                 pcm_channels = 0;
208         if (pcm_channels > 8)
209                 pcm_channels = 8;
210         pcm_channels++;
211         pcm_channels &= ~1;
212         gus->gf1.effect = effect ? 1 : 0;
213         gus->gf1.active_voices = voices;
214         gus->gf1.pcm_channels = pcm_channels;
215         gus->gf1.volume_ramp = 25;
216         gus->gf1.smooth_pan = 1;
217         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, gus, &ops)) < 0) {
218                 snd_gus_free(gus);
219                 return err;
220         }
221         *rgus = gus;
222         return 0;
223 }
224 
225 /*
226  *  Memory detection routine for plain GF1 soundcards
227  */
228 
229 static int snd_gus_detect_memory(struct snd_gus_card * gus)
230 {
231         int l, idx, local;
232         unsigned char d;
233 
234         snd_gf1_poke(gus, 0L, 0xaa);
235         snd_gf1_poke(gus, 1L, 0x55);
236         if (snd_gf1_peek(gus, 0L) != 0xaa || snd_gf1_peek(gus, 1L) != 0x55) {
237                 snd_printk(KERN_ERR "plain GF1 card at 0x%lx without onboard DRAM?\n", gus->gf1.port);
238                 return -ENOMEM;
239         }
240         for (idx = 1, d = 0xab; idx < 4; idx++, d++) {
241                 local = idx << 18;
242                 snd_gf1_poke(gus, local, d);
243                 snd_gf1_poke(gus, local + 1, d + 1);
244                 if (snd_gf1_peek(gus, local) != d ||
245                     snd_gf1_peek(gus, local + 1) != d + 1 ||
246                     snd_gf1_peek(gus, 0L) != 0xaa)
247                         break;
248         }
249 #if 1
250         gus->gf1.memory = idx << 18;
251 #else
252         gus->gf1.memory = 256 * 1024;
253 #endif
254         for (l = 0, local = gus->gf1.memory; l < 4; l++, local -= 256 * 1024) {
255                 gus->gf1.mem_alloc.banks_8[l].address =
256                     gus->gf1.mem_alloc.banks_8[l].size = 0;
257                 gus->gf1.mem_alloc.banks_16[l].address = l << 18;
258                 gus->gf1.mem_alloc.banks_16[l].size = local > 0 ? 256 * 1024 : 0;
259         }
260         gus->gf1.mem_alloc.banks_8[0].size = gus->gf1.memory;
261         return 0;               /* some memory were detected */
262 }
263 
264 static int snd_gus_init_dma_irq(struct snd_gus_card * gus, int latches)
265 {
266         struct snd_card *card;
267         unsigned long flags;
268         int irq, dma1, dma2;
269         static unsigned char irqs[16] =
270                 {0, 0, 1, 3, 0, 2, 0, 4, 0, 1, 0, 5, 6, 0, 0, 7};
271         static unsigned char dmas[8] =
272                 {6, 1, 0, 2, 0, 3, 4, 5};
273 
274         if (snd_BUG_ON(!gus))
275                 return -EINVAL;
276         card = gus->card;
277         if (snd_BUG_ON(!card))
278                 return -EINVAL;
279 
280         gus->mix_cntrl_reg &= 0xf8;
281         gus->mix_cntrl_reg |= 0x01;     /* disable MIC, LINE IN, enable LINE OUT */
282         if (gus->codec_flag || gus->ess_flag) {
283                 gus->mix_cntrl_reg &= ~1;       /* enable LINE IN */
284                 gus->mix_cntrl_reg |= 4;        /* enable MIC */
285         }
286         dma1 = gus->gf1.dma1;
287         dma1 = abs(dma1);
288         dma1 = dmas[dma1 & 7];
289         dma2 = gus->gf1.dma2;
290         dma2 = abs(dma2);
291         dma2 = dmas[dma2 & 7];
292         dma1 |= gus->equal_dma ? 0x40 : (dma2 << 3);
293 
294         if ((dma1 & 7) == 0 || (dma2 & 7) == 0) {
295                 snd_printk(KERN_ERR "Error! DMA isn't defined.\n");
296                 return -EINVAL;
297         }
298         irq = gus->gf1.irq;
299         irq = abs(irq);
300         irq = irqs[irq & 0x0f];
301         if (irq == 0) {
302                 snd_printk(KERN_ERR "Error! IRQ isn't defined.\n");
303                 return -EINVAL;
304         }
305         irq |= 0x40;
306 #if 0
307         card->mixer.mix_ctrl_reg |= 0x10;
308 #endif
309 
310         spin_lock_irqsave(&gus->reg_lock, flags);
311         outb(5, GUSP(gus, REGCNTRLS));
312         outb(gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
313         outb(0x00, GUSP(gus, IRQDMACNTRLREG));
314         outb(0, GUSP(gus, REGCNTRLS));
315         spin_unlock_irqrestore(&gus->reg_lock, flags);
316 
317         udelay(100);
318 
319         spin_lock_irqsave(&gus->reg_lock, flags);
320         outb(0x00 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
321         outb(dma1, GUSP(gus, IRQDMACNTRLREG));
322         if (latches) {
323                 outb(0x40 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
324                 outb(irq, GUSP(gus, IRQDMACNTRLREG));
325         }
326         spin_unlock_irqrestore(&gus->reg_lock, flags);
327 
328         udelay(100);
329 
330         spin_lock_irqsave(&gus->reg_lock, flags);
331         outb(0x00 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
332         outb(dma1, GUSP(gus, IRQDMACNTRLREG));
333         if (latches) {
334                 outb(0x40 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
335                 outb(irq, GUSP(gus, IRQDMACNTRLREG));
336         }
337         spin_unlock_irqrestore(&gus->reg_lock, flags);
338 
339         snd_gf1_delay(gus);
340 
341         if (latches)
342                 gus->mix_cntrl_reg |= 0x08;     /* enable latches */
343         else
344                 gus->mix_cntrl_reg &= ~0x08;    /* disable latches */
345         spin_lock_irqsave(&gus->reg_lock, flags);
346         outb(gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
347         outb(0, GUSP(gus, GF1PAGE));
348         spin_unlock_irqrestore(&gus->reg_lock, flags);
349 
350         return 0;
351 }
352 
353 static int snd_gus_check_version(struct snd_gus_card * gus)
354 {
355         unsigned long flags;
356         unsigned char val, rev;
357         struct snd_card *card;
358 
359         card = gus->card;
360         spin_lock_irqsave(&gus->reg_lock, flags);
361         outb(0x20, GUSP(gus, REGCNTRLS));
362         val = inb(GUSP(gus, REGCNTRLS));
363         rev = inb(GUSP(gus, BOARDVERSION));
364         spin_unlock_irqrestore(&gus->reg_lock, flags);
365         snd_printdd("GF1 [0x%lx] init - val = 0x%x, rev = 0x%x\n", gus->gf1.port, val, rev);
366         strcpy(card->driver, "GUS");
367         strcpy(card->longname, "Gravis UltraSound Classic (2.4)");
368         if ((val != 255 && (val & 0x06)) || (rev >= 5 && rev != 255)) {
369                 if (rev >= 5 && rev <= 9) {
370                         gus->ics_flag = 1;
371                         if (rev == 5)
372                                 gus->ics_flipped = 1;
373                         card->longname[27] = '3';
374                         card->longname[29] = rev == 5 ? '5' : '7';
375                 }
376                 if (rev >= 10 && rev != 255) {
377                         if (rev >= 10 && rev <= 11) {
378                                 strcpy(card->driver, "GUS MAX");
379                                 strcpy(card->longname, "Gravis UltraSound MAX");
380                                 gus->max_flag = 1;
381                         } else if (rev == 0x30) {
382                                 strcpy(card->driver, "GUS ACE");
383                                 strcpy(card->longname, "Gravis UltraSound Ace");
384                                 gus->ace_flag = 1;
385                         } else if (rev == 0x50) {
386                                 strcpy(card->driver, "GUS Extreme");
387                                 strcpy(card->longname, "Gravis UltraSound Extreme");
388                                 gus->ess_flag = 1;
389                         } else {
390                                 snd_printk(KERN_ERR "unknown GF1 revision number at 0x%lx - 0x%x (0x%x)\n", gus->gf1.port, rev, val);
391                                 snd_printk(KERN_ERR "  please - report to <perex@perex.cz>\n");
392                         }
393                 }
394         }
395         strcpy(card->shortname, card->longname);
396         gus->uart_enable = 1;   /* standard GUSes doesn't have midi uart trouble */
397         snd_gus_init_control(gus);
398         return 0;
399 }
400 
401 int snd_gus_initialize(struct snd_gus_card *gus)
402 {
403         int err;
404 
405         if (!gus->interwave) {
406                 if ((err = snd_gus_check_version(gus)) < 0) {
407                         snd_printk(KERN_ERR "version check failed\n");
408                         return err;
409                 }
410                 if ((err = snd_gus_detect_memory(gus)) < 0)
411                         return err;
412         }
413         if ((err = snd_gus_init_dma_irq(gus, 1)) < 0)
414                 return err;
415         snd_gf1_start(gus);
416         gus->initialized = 1;
417         return 0;
418 }
419 
420   /* gus_io.c */
421 EXPORT_SYMBOL(snd_gf1_delay);
422 EXPORT_SYMBOL(snd_gf1_write8);
423 EXPORT_SYMBOL(snd_gf1_look8);
424 EXPORT_SYMBOL(snd_gf1_write16);
425 EXPORT_SYMBOL(snd_gf1_look16);
426 EXPORT_SYMBOL(snd_gf1_i_write8);
427 EXPORT_SYMBOL(snd_gf1_i_look8);
428 EXPORT_SYMBOL(snd_gf1_i_look16);
429 EXPORT_SYMBOL(snd_gf1_dram_addr);
430 EXPORT_SYMBOL(snd_gf1_write_addr);
431 EXPORT_SYMBOL(snd_gf1_poke);
432 EXPORT_SYMBOL(snd_gf1_peek);
433   /* gus_reset.c */
434 EXPORT_SYMBOL(snd_gf1_alloc_voice);
435 EXPORT_SYMBOL(snd_gf1_free_voice);
436 EXPORT_SYMBOL(snd_gf1_ctrl_stop);
437 EXPORT_SYMBOL(snd_gf1_stop_voice);
438   /* gus_mixer.c */
439 EXPORT_SYMBOL(snd_gf1_new_mixer);
440   /* gus_pcm.c */
441 EXPORT_SYMBOL(snd_gf1_pcm_new);
442   /* gus.c */
443 EXPORT_SYMBOL(snd_gus_use_inc);
444 EXPORT_SYMBOL(snd_gus_use_dec);
445 EXPORT_SYMBOL(snd_gus_create);
446 EXPORT_SYMBOL(snd_gus_initialize);
447   /* gus_irq.c */
448 EXPORT_SYMBOL(snd_gus_interrupt);
449   /* gus_uart.c */
450 EXPORT_SYMBOL(snd_gf1_rawmidi_new);
451   /* gus_dram.c */
452 EXPORT_SYMBOL(snd_gus_dram_write);
453 EXPORT_SYMBOL(snd_gus_dram_read);
454   /* gus_volume.c */
455 EXPORT_SYMBOL(snd_gf1_lvol_to_gvol_raw);
456 EXPORT_SYMBOL(snd_gf1_translate_freq);
457   /* gus_mem.c */
458 EXPORT_SYMBOL(snd_gf1_mem_alloc);
459 EXPORT_SYMBOL(snd_gf1_mem_xfree);
460 EXPORT_SYMBOL(snd_gf1_mem_free);
461 EXPORT_SYMBOL(snd_gf1_mem_lock);
462 

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