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 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_put 76}; 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 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 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 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 259static 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 348static 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 396int 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 */ 419EXPORT_SYMBOL(snd_gf1_delay); 420EXPORT_SYMBOL(snd_gf1_write8); 421EXPORT_SYMBOL(snd_gf1_look8); 422EXPORT_SYMBOL(snd_gf1_write16); 423EXPORT_SYMBOL(snd_gf1_look16); 424EXPORT_SYMBOL(snd_gf1_i_write8); 425EXPORT_SYMBOL(snd_gf1_i_look8); 426EXPORT_SYMBOL(snd_gf1_i_look16); 427EXPORT_SYMBOL(snd_gf1_dram_addr); 428EXPORT_SYMBOL(snd_gf1_write_addr); 429EXPORT_SYMBOL(snd_gf1_poke); 430EXPORT_SYMBOL(snd_gf1_peek); 431 /* gus_reset.c */ 432EXPORT_SYMBOL(snd_gf1_alloc_voice); 433EXPORT_SYMBOL(snd_gf1_free_voice); 434EXPORT_SYMBOL(snd_gf1_ctrl_stop); 435EXPORT_SYMBOL(snd_gf1_stop_voice); 436 /* gus_mixer.c */ 437EXPORT_SYMBOL(snd_gf1_new_mixer); 438 /* gus_pcm.c */ 439EXPORT_SYMBOL(snd_gf1_pcm_new); 440 /* gus.c */ 441EXPORT_SYMBOL(snd_gus_use_inc); 442EXPORT_SYMBOL(snd_gus_use_dec); 443EXPORT_SYMBOL(snd_gus_create); 444EXPORT_SYMBOL(snd_gus_initialize); 445 /* gus_irq.c */ 446EXPORT_SYMBOL(snd_gus_interrupt); 447 /* gus_uart.c */ 448EXPORT_SYMBOL(snd_gf1_rawmidi_new); 449 /* gus_dram.c */ 450EXPORT_SYMBOL(snd_gus_dram_write); 451EXPORT_SYMBOL(snd_gus_dram_read); 452 /* gus_volume.c */ 453EXPORT_SYMBOL(snd_gf1_lvol_to_gvol_raw); 454EXPORT_SYMBOL(snd_gf1_translate_freq); 455 /* gus_mem.c */ 456EXPORT_SYMBOL(snd_gf1_mem_alloc); 457EXPORT_SYMBOL(snd_gf1_mem_xfree); 458EXPORT_SYMBOL(snd_gf1_mem_free); 459EXPORT_SYMBOL(snd_gf1_mem_lock); 460