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 __devinit 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) 109 { 110 struct snd_gusmax *maxcard = 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); 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); 124 loop++; 125 } 126 } while (loop && --max > 0); 127 return IRQ_RETVAL(handled); 128 } 129 130 static void __devinit snd_gusmax_init(int dev, struct snd_card *card, 131 struct snd_gus_card * gus) 132 { 133 gus->equal_irq = 1; 134 gus->codec_flag = 1; 135 gus->joystick_dac = joystick_dac[dev]; 136 /* init control register */ 137 gus->max_cntrl_val = (gus->gf1.port >> 4) & 0x0f; 138 if (gus->gf1.dma1 > 3) 139 gus->max_cntrl_val |= 0x10; 140 if (gus->gf1.dma2 > 3) 141 gus->max_cntrl_val |= 0x20; 142 gus->max_cntrl_val |= 0x40; 143 outb(gus->max_cntrl_val, GUSP(gus, MAXCNTRLPORT)); 144 } 145 146 #define CS4231_PRIVATE( left, right, shift, mute ) \ 147 ((left << 24)|(right << 16)|(shift<<8)|mute) 148 149 static int __devinit snd_gusmax_mixer(struct snd_cs4231 *chip) 150 { 151 struct snd_card *card = chip->card; 152 struct snd_ctl_elem_id id1, id2; 153 int err; 154 155 memset(&id1, 0, sizeof(id1)); 156 memset(&id2, 0, sizeof(id2)); 157 id1.iface = id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 158 /* reassign AUXA to SYNTHESIZER */ 159 strcpy(id1.name, "Aux Playback Switch"); 160 strcpy(id2.name, "Synth Playback Switch"); 161 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0) 162 return err; 163 strcpy(id1.name, "Aux Playback Volume"); 164 strcpy(id2.name, "Synth Playback Volume"); 165 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0) 166 return err; 167 /* reassign AUXB to CD */ 168 strcpy(id1.name, "Aux Playback Switch"); id1.index = 1; 169 strcpy(id2.name, "CD Playback Switch"); 170 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0) 171 return err; 172 strcpy(id1.name, "Aux Playback Volume"); 173 strcpy(id2.name, "CD Playback Volume"); 174 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0) 175 return err; 176 #if 0 177 /* reassign Mono Input to MIC */ 178 if (snd_mixer_group_rename(mixer, 179 SNDRV_MIXER_IN_MONO, 0, 180 SNDRV_MIXER_IN_MIC, 0) < 0) 181 goto __error; 182 if (snd_mixer_elem_rename(mixer, 183 SNDRV_MIXER_IN_MONO, 0, SNDRV_MIXER_ETYPE_INPUT, 184 SNDRV_MIXER_IN_MIC, 0) < 0) 185 goto __error; 186 if (snd_mixer_elem_rename(mixer, 187 "Mono Capture Volume", 0, SNDRV_MIXER_ETYPE_VOLUME1, 188 "Mic Capture Volume", 0) < 0) 189 goto __error; 190 if (snd_mixer_elem_rename(mixer, 191 "Mono Capture Switch", 0, SNDRV_MIXER_ETYPE_SWITCH1, 192 "Mic Capture Switch", 0) < 0) 193 goto __error; 194 #endif 195 return 0; 196 } 197 198 static void snd_gusmax_free(struct snd_card *card) 199 { 200 struct snd_gusmax *maxcard = (struct snd_gusmax *)card->private_data; 201 202 if (maxcard == NULL) 203 return; 204 if (maxcard->irq >= 0) 205 free_irq(maxcard->irq, (void *)maxcard); 206 } 207 208 static int __devinit snd_gusmax_probe(struct platform_device *pdev) 209 { 210 int dev = pdev->id; 211 static int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, -1}; 212 static int possible_dmas[] = {5, 6, 7, 1, 3, -1}; 213 int xirq, xdma1, xdma2, err; 214 struct snd_card *card; 215 struct snd_gus_card *gus = NULL; 216 struct snd_cs4231 *cs4231; 217 struct snd_gusmax *maxcard; 218 219 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 220 sizeof(struct snd_gusmax)); 221 if (card == NULL) 222 return -ENOMEM; 223 card->private_free = snd_gusmax_free; 224 maxcard = (struct snd_gusmax *)card->private_data; 225 maxcard->card = card; 226 maxcard->irq = -1; 227 228 xirq = irq[dev]; 229 if (xirq == SNDRV_AUTO_IRQ) { 230 if ((xirq = snd_legacy_find_free_irq(possible_irqs)) < 0) { 231 snd_printk(KERN_ERR PFX "unable to find a free IRQ\n"); 232 err = -EBUSY; 233 goto _err; 234 } 235 } 236 xdma1 = dma1[dev]; 237 if (xdma1 == SNDRV_AUTO_DMA) { 238 if ((xdma1 = snd_legacy_find_free_dma(possible_dmas)) < 0) { 239 snd_printk(KERN_ERR PFX "unable to find a free DMA1\n"); 240 err = -EBUSY; 241 goto _err; 242 } 243 } 244 xdma2 = dma2[dev]; 245 if (xdma2 == SNDRV_AUTO_DMA) { 246 if ((xdma2 = snd_legacy_find_free_dma(possible_dmas)) < 0) { 247 snd_printk(KERN_ERR PFX "unable to find a free DMA2\n"); 248 err = -EBUSY; 249 goto _err; 250 } 251 } 252 253 if (port[dev] != SNDRV_AUTO_PORT) { 254 err = snd_gus_create(card, 255 port[dev], 256 -xirq, xdma1, xdma2, 257 0, channels[dev], 258 pcm_channels[dev], 259 0, &gus); 260 } else { 261 static unsigned long possible_ports[] = { 262 0x220, 0x230, 0x240, 0x250, 0x260 263 }; 264 int i; 265 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) { 266 err = snd_gus_create(card, 267 possible_ports[i], 268 -xirq, xdma1, xdma2, 269 0, channels[dev], 270 pcm_channels[dev], 271 0, &gus); 272 if (err >= 0) { 273 port[dev] = possible_ports[i]; 274 break; 275 } 276 } 277 } 278 if (err < 0) 279 goto _err; 280 281 if ((err = snd_gusmax_detect(gus)) < 0) 282 goto _err; 283 284 maxcard->gus_status_reg = gus->gf1.reg_irqstat; 285 maxcard->pcm_status_reg = gus->gf1.port + 0x10c + 2; 286 snd_gusmax_init(dev, card, gus); 287 if ((err = snd_gus_initialize(gus)) < 0) 288 goto _err; 289 290 if (!gus->max_flag) { 291 snd_printk(KERN_ERR PFX "GUS MAX soundcard was not detected at 0x%lx\n", gus->gf1.port); 292 err = -ENODEV; 293 goto _err; 294 } 295 296 if (request_irq(xirq, snd_gusmax_interrupt, IRQF_DISABLED, "GUS MAX", (void *)maxcard)) { 297 snd_printk(KERN_ERR PFX "unable to grab IRQ %d\n", xirq); 298 err = -EBUSY; 299 goto _err; 300 } 301 maxcard->irq = xirq; 302 303 if ((err = snd_cs4231_create(card, 304 gus->gf1.port + 0x10c, -1, xirq, 305 xdma2 < 0 ? xdma1 : xdma2, xdma1, 306 CS4231_HW_DETECT, 307 CS4231_HWSHARE_IRQ | 308 CS4231_HWSHARE_DMA1 | 309 CS4231_HWSHARE_DMA2, 310 &cs4231)) < 0) 311 goto _err; 312 313 if ((err = snd_cs4231_pcm(cs4231, 0, NULL)) < 0) 314 goto _err; 315 316 if ((err = snd_cs4231_mixer(cs4231)) < 0) 317 goto _err; 318 319 if ((err = snd_cs4231_timer(cs4231, 2, NULL)) < 0) 320 goto _err; 321 322 if (pcm_channels[dev] > 0) { 323 if ((err = snd_gf1_pcm_new(gus, 1, 1, NULL)) < 0) 324 goto _err; 325 } 326 if ((err = snd_gusmax_mixer(cs4231)) < 0) 327 goto _err; 328 329 if ((err = snd_gf1_rawmidi_new(gus, 0, NULL)) < 0) 330 goto _err; 331 332 sprintf(card->longname + strlen(card->longname), " at 0x%lx, irq %i, dma %i", gus->gf1.port, xirq, xdma1); 333 if (xdma2 >= 0) 334 sprintf(card->longname + strlen(card->longname), "&%i", xdma2); 335 336 snd_card_set_dev(card, &pdev->dev); 337 338 if ((err = snd_card_register(card)) < 0) 339 goto _err; 340 341 maxcard->gus = gus; 342 maxcard->cs4231 = cs4231; 343 344 platform_set_drvdata(pdev, card); 345 return 0; 346 347 _err: 348 snd_card_free(card); 349 return err; 350 } 351 352 static int __devexit snd_gusmax_remove(struct platform_device *devptr) 353 { 354 snd_card_free(platform_get_drvdata(devptr)); 355 platform_set_drvdata(devptr, NULL); 356 return 0; 357 } 358 359 #define GUSMAX_DRIVER "snd_gusmax" 360 361 static struct platform_driver snd_gusmax_driver = { 362 .probe = snd_gusmax_probe, 363 .remove = __devexit_p(snd_gusmax_remove), 364 /* FIXME: suspend/resume */ 365 .driver = { 366 .name = GUSMAX_DRIVER 367 }, 368 }; 369 370 static void __init_or_module snd_gusmax_unregister_all(void) 371 { 372 int i; 373 374 for (i = 0; i < ARRAY_SIZE(devices); ++i) 375 platform_device_unregister(devices[i]); 376 platform_driver_unregister(&snd_gusmax_driver); 377 } 378 379 static int __init alsa_card_gusmax_init(void) 380 { 381 int i, cards, err; 382 383 err = platform_driver_register(&snd_gusmax_driver); 384 if (err < 0) 385 return err; 386 387 cards = 0; 388 for (i = 0; i < SNDRV_CARDS; i++) { 389 struct platform_device *device; 390 if (! enable[i]) 391 continue; 392 device = platform_device_register_simple(GUSMAX_DRIVER, 393 i, NULL, 0); 394 if (IS_ERR(device)) 395 continue; 396 if (!platform_get_drvdata(device)) { 397 platform_device_unregister(device); 398 continue; 399 } 400 devices[i] = device; 401 cards++; 402 } 403 if (!cards) { 404 #ifdef MODULE 405 printk(KERN_ERR "GUS MAX soundcard not found or device busy\n"); 406 #endif 407 snd_gusmax_unregister_all(); 408 return -ENODEV; 409 } 410 return 0; 411 } 412 413 static void __exit alsa_card_gusmax_exit(void) 414 { 415 snd_gusmax_unregister_all(); 416 } 417 418 module_init(alsa_card_gusmax_init) 419 module_exit(alsa_card_gusmax_exit) 420