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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * Routines for Gravis UltraSound soundcards4 * 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 19MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");20MODULE_DESCRIPTION("Routines for Gravis UltraSound soundcards");21MODULE_LICENSE("GPL");22 23static int snd_gus_init_dma_irq(struct snd_gus_card * gus, int latches);24 25int 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 32void snd_gus_use_dec(struct snd_gus_card * gus)33{34 module_put(gus->card->module);35}36 37static 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 46static 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 54static 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 70static 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_put76};77 78static 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 88static 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 111static 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 117int 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 dev_err(card->dev, "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 dev_err(card->dev, "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 dev_err(card->dev, "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 dev_err(card->dev, "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 dev_err(card->dev, "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 soundcards222 */223 224static 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 dev_err(gus->card->dev,233 "plain GF1 card at 0x%lx without onboard DRAM?\n",234 gus->gf1.port);235 return -ENOMEM;236 }237 for (idx = 1, d = 0xab; idx < 4; idx++, d++) {238 local = idx << 18;239 snd_gf1_poke(gus, local, d);240 snd_gf1_poke(gus, local + 1, d + 1);241 if (snd_gf1_peek(gus, local) != d ||242 snd_gf1_peek(gus, local + 1) != d + 1 ||243 snd_gf1_peek(gus, 0L) != 0xaa)244 break;245 }246#if 1247 gus->gf1.memory = idx << 18;248#else249 gus->gf1.memory = 256 * 1024;250#endif251 for (l = 0, local = gus->gf1.memory; l < 4; l++, local -= 256 * 1024) {252 gus->gf1.mem_alloc.banks_8[l].address =253 gus->gf1.mem_alloc.banks_8[l].size = 0;254 gus->gf1.mem_alloc.banks_16[l].address = l << 18;255 gus->gf1.mem_alloc.banks_16[l].size = local > 0 ? 256 * 1024 : 0;256 }257 gus->gf1.mem_alloc.banks_8[0].size = gus->gf1.memory;258 return 0; /* some memory were detected */259}260 261static int snd_gus_init_dma_irq(struct snd_gus_card * gus, int latches)262{263 struct snd_card *card;264 unsigned long flags;265 int irq, dma1, dma2;266 static const unsigned char irqs[16] =267 {0, 0, 1, 3, 0, 2, 0, 4, 0, 1, 0, 5, 6, 0, 0, 7};268 static const unsigned char dmas[8] =269 {6, 1, 0, 2, 0, 3, 4, 5};270 271 if (snd_BUG_ON(!gus))272 return -EINVAL;273 card = gus->card;274 if (snd_BUG_ON(!card))275 return -EINVAL;276 277 gus->mix_cntrl_reg &= 0xf8;278 gus->mix_cntrl_reg |= 0x01; /* disable MIC, LINE IN, enable LINE OUT */279 if (gus->codec_flag || gus->ess_flag) {280 gus->mix_cntrl_reg &= ~1; /* enable LINE IN */281 gus->mix_cntrl_reg |= 4; /* enable MIC */282 }283 dma1 = gus->gf1.dma1;284 dma1 = abs(dma1);285 dma1 = dmas[dma1 & 7];286 dma2 = gus->gf1.dma2;287 dma2 = abs(dma2);288 dma2 = dmas[dma2 & 7];289 dma1 |= gus->equal_dma ? 0x40 : (dma2 << 3);290 291 if ((dma1 & 7) == 0 || (dma2 & 7) == 0) {292 dev_err(gus->card->dev, "Error! DMA isn't defined.\n");293 return -EINVAL;294 }295 irq = gus->gf1.irq;296 irq = abs(irq);297 irq = irqs[irq & 0x0f];298 if (irq == 0) {299 dev_err(gus->card->dev, "Error! IRQ isn't defined.\n");300 return -EINVAL;301 }302 irq |= 0x40;303#if 0304 card->mixer.mix_ctrl_reg |= 0x10;305#endif306 307 spin_lock_irqsave(&gus->reg_lock, flags);308 outb(5, GUSP(gus, REGCNTRLS));309 outb(gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));310 outb(0x00, GUSP(gus, IRQDMACNTRLREG));311 outb(0, GUSP(gus, REGCNTRLS));312 spin_unlock_irqrestore(&gus->reg_lock, flags);313 314 udelay(100);315 316 spin_lock_irqsave(&gus->reg_lock, flags);317 outb(0x00 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));318 outb(dma1, GUSP(gus, IRQDMACNTRLREG));319 if (latches) {320 outb(0x40 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));321 outb(irq, GUSP(gus, IRQDMACNTRLREG));322 }323 spin_unlock_irqrestore(&gus->reg_lock, flags);324 325 udelay(100);326 327 spin_lock_irqsave(&gus->reg_lock, flags);328 outb(0x00 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));329 outb(dma1, GUSP(gus, IRQDMACNTRLREG));330 if (latches) {331 outb(0x40 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));332 outb(irq, GUSP(gus, IRQDMACNTRLREG));333 }334 spin_unlock_irqrestore(&gus->reg_lock, flags);335 336 snd_gf1_delay(gus);337 338 if (latches)339 gus->mix_cntrl_reg |= 0x08; /* enable latches */340 else341 gus->mix_cntrl_reg &= ~0x08; /* disable latches */342 spin_lock_irqsave(&gus->reg_lock, flags);343 outb(gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));344 outb(0, GUSP(gus, GF1PAGE));345 spin_unlock_irqrestore(&gus->reg_lock, flags);346 347 return 0;348}349 350static int snd_gus_check_version(struct snd_gus_card * gus)351{352 unsigned long flags;353 unsigned char val, rev;354 struct snd_card *card;355 356 card = gus->card;357 spin_lock_irqsave(&gus->reg_lock, flags);358 outb(0x20, GUSP(gus, REGCNTRLS));359 val = inb(GUSP(gus, REGCNTRLS));360 rev = inb(GUSP(gus, BOARDVERSION));361 spin_unlock_irqrestore(&gus->reg_lock, flags);362 dev_dbg(card->dev, "GF1 [0x%lx] init - val = 0x%x, rev = 0x%x\n", gus->gf1.port, val, rev);363 strcpy(card->driver, "GUS");364 strcpy(card->longname, "Gravis UltraSound Classic (2.4)");365 if ((val != 255 && (val & 0x06)) || (rev >= 5 && rev != 255)) {366 if (rev >= 5 && rev <= 9) {367 gus->ics_flag = 1;368 if (rev == 5)369 gus->ics_flipped = 1;370 card->longname[27] = '3';371 card->longname[29] = rev == 5 ? '5' : '7';372 }373 if (rev >= 10 && rev != 255) {374 if (rev >= 10 && rev <= 11) {375 strcpy(card->driver, "GUS MAX");376 strcpy(card->longname, "Gravis UltraSound MAX");377 gus->max_flag = 1;378 } else if (rev == 0x30) {379 strcpy(card->driver, "GUS ACE");380 strcpy(card->longname, "Gravis UltraSound Ace");381 gus->ace_flag = 1;382 } else if (rev == 0x50) {383 strcpy(card->driver, "GUS Extreme");384 strcpy(card->longname, "Gravis UltraSound Extreme");385 gus->ess_flag = 1;386 } else {387 dev_err(card->dev,388 "unknown GF1 revision number at 0x%lx - 0x%x (0x%x)\n",389 gus->gf1.port, rev, val);390 dev_err(card->dev,391 " please - report to <perex@perex.cz>\n");392 }393 }394 }395 strscpy(card->shortname, card->longname, sizeof(card->shortname));396 gus->uart_enable = 1; /* standard GUSes doesn't have midi uart trouble */397 snd_gus_init_control(gus);398 return 0;399}400 401int snd_gus_initialize(struct snd_gus_card *gus)402{403 int err;404 405 if (!gus->interwave) {406 err = snd_gus_check_version(gus);407 if (err < 0) {408 dev_err(gus->card->dev, "version check failed\n");409 return err;410 }411 err = snd_gus_detect_memory(gus);412 if (err < 0)413 return err;414 }415 err = snd_gus_init_dma_irq(gus, 1);416 if (err < 0)417 return err;418 snd_gf1_start(gus);419 gus->initialized = 1;420 return 0;421}422 423 /* gus_io.c */424EXPORT_SYMBOL(snd_gf1_delay);425EXPORT_SYMBOL(snd_gf1_write8);426EXPORT_SYMBOL(snd_gf1_look8);427EXPORT_SYMBOL(snd_gf1_write16);428EXPORT_SYMBOL(snd_gf1_look16);429EXPORT_SYMBOL(snd_gf1_i_write8);430EXPORT_SYMBOL(snd_gf1_i_look8);431EXPORT_SYMBOL(snd_gf1_i_look16);432EXPORT_SYMBOL(snd_gf1_dram_addr);433EXPORT_SYMBOL(snd_gf1_write_addr);434EXPORT_SYMBOL(snd_gf1_poke);435EXPORT_SYMBOL(snd_gf1_peek);436 /* gus_reset.c */437EXPORT_SYMBOL(snd_gf1_alloc_voice);438EXPORT_SYMBOL(snd_gf1_free_voice);439EXPORT_SYMBOL(snd_gf1_ctrl_stop);440EXPORT_SYMBOL(snd_gf1_stop_voice);441 /* gus_mixer.c */442EXPORT_SYMBOL(snd_gf1_new_mixer);443 /* gus_pcm.c */444EXPORT_SYMBOL(snd_gf1_pcm_new);445 /* gus.c */446EXPORT_SYMBOL(snd_gus_use_inc);447EXPORT_SYMBOL(snd_gus_use_dec);448EXPORT_SYMBOL(snd_gus_create);449EXPORT_SYMBOL(snd_gus_initialize);450 /* gus_irq.c */451EXPORT_SYMBOL(snd_gus_interrupt);452 /* gus_uart.c */453EXPORT_SYMBOL(snd_gf1_rawmidi_new);454 /* gus_dram.c */455EXPORT_SYMBOL(snd_gus_dram_write);456EXPORT_SYMBOL(snd_gus_dram_read);457 /* gus_volume.c */458EXPORT_SYMBOL(snd_gf1_lvol_to_gvol_raw);459EXPORT_SYMBOL(snd_gf1_translate_freq);460 /* gus_mem.c */461EXPORT_SYMBOL(snd_gf1_mem_alloc);462EXPORT_SYMBOL(snd_gf1_mem_xfree);463EXPORT_SYMBOL(snd_gf1_mem_free);464EXPORT_SYMBOL(snd_gf1_mem_lock);465