1 /* 2 * Driver for Gravis UltraSound MAX soundcard 3 * Copyright (c) by Jaroslav Kysela <perex@suse.cz> 4 * 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 * 20 */ 21 22 #include <sound/driver.h> 23 #include <linux/init.h> 24 #include <linux/err.h> 25 #include <linux/platform_device.h> 26 #include <linux/delay.h> 27 #include <linux/time.h> 28 #include <linux/moduleparam.h> 29 #include <asm/dma.h> 30 #include <sound/core.h> 31 #include <sound/gus.h> 32 #include <sound/cs4231.h> 33 #define SNDRV_LEGACY_FIND_FREE_IRQ 34 #define SNDRV_LEGACY_FIND_FREE_DMA 35 #include <sound/initval.h> 36 37 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>"); 38 MODULE_DESCRIPTION("Gravis UltraSound MAX"); 39 MODULE_LICENSE("GPL"); 40 MODULE_SUPPORTED_DEVICE("{{Gravis,UltraSound MAX}}"); 41 42 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ 43 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 44 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */ 45 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x230,0x240,0x250,0x260 */ 46 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 2,3,5,9,11,12,15 */ 47 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */ 48 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */ 49 static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29}; 50 /* 0 to 31, (0.59V-4.52V or 0.389V-2.98V) */ 51 static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24}; 52 static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2}; 53 54 module_param_array(index, int, NULL, 0444); 55 MODULE_PARM_DESC(index, "Index value for GUS MAX soundcard."); 56 module_param_array(id, charp, NULL, 0444); 57 MODULE_PARM_DESC(id, "ID string for GUS MAX soundcard."); 58 module_param_array(enable, bool, NULL, 0444); 59 MODULE_PARM_DESC(enable, "Enable GUS MAX soundcard."); 60 module_param_array(port, long, NULL, 0444); 61 MODULE_PARM_DESC(port, "Port # for GUS MAX driver."); 62 module_param_array(irq, int, NULL, 0444); 63 MODULE_PARM_DESC(irq, "IRQ # for GUS MAX driver."); 64 module_param_array(dma1, int, NULL, 0444); 65 MODULE_PARM_DESC(dma1, "DMA1 # for GUS MAX driver."); 66 module_param_array(dma2, int, NULL, 0444); 67 MODULE_PARM_DESC(dma2, "DMA2 # for GUS MAX driver."); 68 module_param_array(joystick_dac, int, NULL, 0444); 69 MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for GUS MAX driver."); 70 module_param_array(channels, int, NULL, 0444); 71 MODULE_PARM_DESC(channels, "Used GF1 channels for GUS MAX driver."); 72 module_param_array(pcm_channels, int, NULL, 0444); 73 MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for GUS MAX driver."); 74 75 static struct platform_device *devices[SNDRV_CARDS]; 76 77 struct snd_gusmax { 78 int irq; 79 struct snd_card *card; 80 struct snd_gus_card *gus; 81 struct snd_cs4231 *cs4231; 82 unsigned short gus_status_reg; 83 unsigned short pcm_status_reg; 84 }; 85 86 #define PFX "gusmax: " 87 88 static int __init snd_gusmax_detect(struct snd_gus_card * gus) 89 { 90 unsigned char d; 91 92 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0); /* reset GF1 */ 93 if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) { 94 snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d); 95 return -ENODEV; 96 } 97 udelay(160); 98 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1); /* release reset */ 99 udelay(160); 100 if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) { 101 snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d); 102 return -ENODEV; 103 } 104 105 return 0; 106 } 107 108 static irqreturn_t snd_gusmax_interrupt(int irq, void *dev_id, struct pt_regs *regs) 109 { 110 struct snd_gusmax *maxcard = (struct snd_gusmax *) dev_id; 111 int loop, max = 5; 112 int handled = 0; 113 114 do { 115 loop = 0; 116 if (inb(maxcard->gus_status_reg)) { 117 handled = 1; 118 snd_gus_interrupt(irq, maxcard->gus, regs); 119 loop++; 120 } 121 if (inb(maxcard->pcm_status_reg) & 0x01) { /* IRQ bit is set? */ 122 handled = 1; 123 snd_cs4231_interrupt(irq, maxcard->cs4231, regs); 124 loop++; 125 } 126 } while (loop && --max > 0); 127 return IRQ_RETVAL(handled); 128 } 129 130 static void __init snd_gusmax_init(int dev, struct snd_card *card, struct snd_gus_card * gus) 131 { 132 gus->equal_irq = 1; 133 gus->codec_flag = 1; 134 gus->joystick_dac = joystick_dac[dev]; 135 /* init control register */ 136 gus->max_cntrl_val = (gus->gf1.port >> 4) & 0x0f; 137 if (gus->gf1.dma1 > 3) 138 gus->max_cntrl_val |= 0x10; 139 if (gus->gf1.dma2 > 3) 140 gus->max_cntrl_val |= 0x20; 141 gus->max_cntrl_val |= 0x40; 142 outb(gus->max_cntrl_val, GUSP(gus, MAXCNTRLPORT)); 143 } 144 145 #define CS4231_PRIVATE( left, right, shift, mute ) \ 146 ((left << 24)|(right << 16)|(shift<<8)|mute) 147 148 static int __init snd_gusmax_mixer(struct snd_cs4231 *chip) 149 { 150 struct snd_card *card = chip->card; 151 struct snd_ctl_elem_id id1, id2; 152 int err; 153 154 memset(&id1, 0, sizeof(id1)); 155 memset(&id2, 0, sizeof(id2)); 156 id1.iface = id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 157 /* reassign AUXA to SYNTHESIZER */ 158 strcpy(id1.name, "Aux Playback Switch"); 159 strcpy(id2.name, "Synth Playback Switch"); 160 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0) 161 return err; 162 strcpy(id1.name, "Aux Playback Volume"); 163 strcpy(id2.name, "Synth Playback Volume"); 164 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0) 165 return err; 166 /* reassign AUXB to CD */ 167 strcpy(id1.name, "Aux Playback Switch"); id1.index = 1; 168 strcpy(id2.name, "CD Playback Switch"); 169 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0) 170 return err; 171 strcpy(id1.name, "Aux Playback Volume"); 172 strcpy(id2.name, "CD Playback Volume"); 173 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0) 174 return err; 175 #if 0 176 /* reassign Mono Input to MIC */ 177 if (snd_mixer_group_rename(mixer, 178 SNDRV_MIXER_IN_MONO, 0, 179 SNDRV_MIXER_IN_MIC, 0) < 0) 180 goto __error; 181 if (snd_mixer_elem_rename(mixer, 182 SNDRV_MIXER_IN_MONO, 0, SNDRV_MIXER_ETYPE_INPUT, 183 SNDRV_MIXER_IN_MIC, 0) < 0) 184 goto __error; 185 if (snd_mixer_elem_rename(mixer, 186 "Mono Capture Volume", 0, SNDRV_MIXER_ETYPE_VOLUME1, 187 "Mic Capture Volume", 0) < 0) 188 goto __error; 189 if (snd_mixer_elem_rename(mixer, 190 "Mono Capture Switch", 0, SNDRV_MIXER_ETYPE_SWITCH1, 191 "Mic Capture Switch", 0) < 0) 192 goto __error; 193 #endif 194 return 0; 195 } 196 197 static void snd_gusmax_free(struct snd_card *card) 198 { 199 struct snd_gusmax *maxcard = (struct snd_gusmax *)card->private_data; 200 201 if (maxcard == NULL) 202 return; 203 if (maxcard->irq >= 0) 204 free_irq(maxcard->irq, (void *)maxcard); 205 } 206 207 static int __init snd_gusmax_probe(struct platform_device *pdev) 208 { 209 int dev = pdev->id; 210 static int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, -1}; 211 static int possible_dmas[] = {5, 6, 7, 1, 3, -1}; 212 int xirq, xdma1, xdma2, err; 213 struct snd_card *card; 214 struct snd_gus_card *gus = NULL; 215 struct snd_cs4231 *cs4231; 216 struct snd_gusmax *maxcard; 217 218 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 219 sizeof(struct snd_gusmax)); 220 if (card == NULL) 221 return -ENOMEM; 222 card->private_free = snd_gusmax_free; 223 maxcard = (struct snd_gusmax *)card->private_data; 224 maxcard->card = card; 225 maxcard->irq = -1; 226 227 xirq = irq[dev]; 228 if (xirq == SNDRV_AUTO_IRQ) { 229 if ((xirq = snd_legacy_find_free_irq(possible_irqs)) < 0) { 230 snd_printk(KERN_ERR PFX "unable to find a free IRQ\n"); 231 err = -EBUSY; 232 goto _err; 233 } 234 } 235 xdma1 = dma1[dev]; 236 if (xdma1 == SNDRV_AUTO_DMA) { 237 if ((xdma1 = snd_legacy_find_free_dma(possible_dmas)) < 0) { 238 snd_printk(KERN_ERR PFX "unable to find a free DMA1\n"); 239 err = -EBUSY; 240 goto _err; 241 } 242 } 243 xdma2 = dma2[dev]; 244 if (xdma2 == SNDRV_AUTO_DMA) { 245 if ((xdma2 = snd_legacy_find_free_dma(possible_dmas)) < 0) { 246 snd_printk(KERN_ERR PFX "unable to find a free DMA2\n"); 247 err = -EBUSY; 248 goto _err; 249 } 250 } 251 252 if (port[dev] != SNDRV_AUTO_PORT) { 253 err = snd_gus_create(card, 254 port[dev], 255 -xirq, xdma1, xdma2, 256 0, channels[dev], 257 pcm_channels[dev], 258 0, &gus); 259 } else { 260 static unsigned long possible_ports[] = { 261 0x220, 0x230, 0x240, 0x250, 0x260 262 }; 263 int i; 264 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) { 265 err = snd_gus_create(card, 266 possible_ports[i], 267 -xirq, xdma1, xdma2, 268 0, channels[dev], 269 pcm_channels[dev], 270 0, &gus); 271 if (err >= 0) { 272 port[dev] = possible_ports[i]; 273 break; 274 } 275 } 276 } 277 if (err < 0) 278 goto _err; 279 280 if ((err = snd_gusmax_detect(gus)) < 0) 281 goto _err; 282 283 maxcard->gus_status_reg = gus->gf1.reg_irqstat; 284 maxcard->pcm_status_reg = gus->gf1.port + 0x10c + 2; 285 snd_gusmax_init(dev, card, gus); 286 if ((err = snd_gus_initialize(gus)) < 0) 287 goto _err; 288 289 if (!gus->max_flag) { 290 snd_printk(KERN_ERR PFX "GUS MAX soundcard was not detected at 0x%lx\n", gus->gf1.port); 291 err = -ENODEV; 292 goto _err; 293 } 294 295 if (request_irq(xirq, snd_gusmax_interrupt, IRQF_DISABLED, "GUS MAX", (void *)maxcard)) { 296 snd_printk(KERN_ERR PFX "unable to grab IRQ %d\n", xirq); 297 err = -EBUSY; 298 goto _err; 299 } 300 maxcard->irq = xirq; 301 302 if ((err = snd_cs4231_create(card, 303 gus->gf1.port + 0x10c, -1, xirq, 304 xdma2 < 0 ? xdma1 : xdma2, xdma1, 305 CS4231_HW_DETECT, 306 CS4231_HWSHARE_IRQ | 307 CS4231_HWSHARE_DMA1 | 308 CS4231_HWSHARE_DMA2, 309 &cs4231)) < 0) 310 goto _err; 311 312 if ((err = snd_cs4231_pcm(cs4231, 0, NULL)) < 0) 313 goto _err; 314 315 if ((err = snd_cs4231_mixer(cs4231)) < 0) 316 goto _err; 317 318 if ((err = snd_cs4231_timer(cs4231, 2, NULL)) < 0) 319 goto _err; 320 321 if (pcm_channels[dev] > 0) { 322 if ((err = snd_gf1_pcm_new(gus, 1, 1, NULL)) < 0) 323 goto _err; 324 } 325 if ((err = snd_gusmax_mixer(cs4231)) < 0) 326 goto _err; 327 328 if ((err = snd_gf1_rawmidi_new(gus, 0, NULL)) < 0) 329 goto _err; 330 331 sprintf(card->longname + strlen(card->longname), " at 0x%lx, irq %i, dma %i", gus->gf1.port, xirq, xdma1); 332 if (xdma2 >= 0) 333 sprintf(card->longname + strlen(card->longname), "&%i", xdma2); 334 335 snd_card_set_dev(card, &pdev->dev); 336 337 if ((err = snd_card_register(card)) < 0) 338 goto _err; 339 340 maxcard->gus = gus; 341 maxcard->cs4231 = cs4231; 342 343 platform_set_drvdata(pdev, card); 344 return 0; 345 346 _err: 347 snd_card_free(card); 348 return err; 349 } 350 351 static int snd_gusmax_remove(struct platform_device *devptr) 352 { 353 snd_card_free(platform_get_drvdata(devptr)); 354 platform_set_drvdata(devptr, NULL); 355 return 0; 356 } 357 358 #define GUSMAX_DRIVER "snd_gusmax" 359 360 static struct platform_driver snd_gusmax_driver = { 361 .probe = snd_gusmax_probe, 362 .remove = snd_gusmax_remove, 363 /* FIXME: suspend/resume */ 364 .driver = { 365 .name = GUSMAX_DRIVER 366 }, 367 }; 368 369 static void __init_or_module snd_gusmax_unregister_all(void) 370 { 371 int i; 372 373 for (i = 0; i < ARRAY_SIZE(devices); ++i) 374 platform_device_unregister(devices[i]); 375 platform_driver_unregister(&snd_gusmax_driver); 376 } 377 378 static int __init alsa_card_gusmax_init(void) 379 { 380 int i, cards, err; 381 382 err = platform_driver_register(&snd_gusmax_driver); 383 if (err < 0) 384 return err; 385 386 cards = 0; 387 for (i = 0; i < SNDRV_CARDS; i++) { 388 struct platform_device *device; 389 if (! enable[i]) 390 continue; 391 device = platform_device_register_simple(GUSMAX_DRIVER, 392 i, NULL, 0); 393 if (IS_ERR(device)) 394 continue; 395 if (!platform_get_drvdata(device)) { 396 platform_device_unregister(device); 397 continue; 398 } 399 devices[i] = device; 400 cards++; 401 } 402 if (!cards) { 403 #ifdef MODULE 404 printk(KERN_ERR "GUS MAX soundcard not found or device busy\n"); 405 #endif 406 snd_gusmax_unregister_all(); 407 return -ENODEV; 408 } 409 return 0; 410 } 411 412 static void __exit alsa_card_gusmax_exit(void) 413 { 414 snd_gusmax_unregister_all(); 415 } 416 417 module_init(alsa_card_gusmax_init) 418 module_exit(alsa_card_gusmax_exit) 419