1 /* 2 * Driver for Gravis UltraSound MAX soundcard 3 * Copyright (c) by Jaroslav Kysela <perex@perex.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 <linux/init.h> 23 #include <linux/err.h> 24 #include <linux/isa.h> 25 #include <linux/delay.h> 26 #include <linux/time.h> 27 #include <linux/module.h> 28 #include <asm/dma.h> 29 #include <sound/core.h> 30 #include <sound/gus.h> 31 #include <sound/wss.h> 32 #define SNDRV_LEGACY_FIND_FREE_IRQ 33 #define SNDRV_LEGACY_FIND_FREE_DMA 34 #include <sound/initval.h> 35 36 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); 37 MODULE_DESCRIPTION("Gravis UltraSound MAX"); 38 MODULE_LICENSE("GPL"); 39 MODULE_SUPPORTED_DEVICE("{{Gravis,UltraSound MAX}}"); 40 41 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ 42 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 43 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */ 44 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x230,0x240,0x250,0x260 */ 45 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 2,3,5,9,11,12,15 */ 46 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */ 47 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */ 48 static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29}; 49 /* 0 to 31, (0.59V-4.52V or 0.389V-2.98V) */ 50 static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24}; 51 static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2}; 52 53 module_param_array(index, int, NULL, 0444); 54 MODULE_PARM_DESC(index, "Index value for GUS MAX soundcard."); 55 module_param_array(id, charp, NULL, 0444); 56 MODULE_PARM_DESC(id, "ID string for GUS MAX soundcard."); 57 module_param_array(enable, bool, NULL, 0444); 58 MODULE_PARM_DESC(enable, "Enable GUS MAX soundcard."); 59 module_param_array(port, long, NULL, 0444); 60 MODULE_PARM_DESC(port, "Port # for GUS MAX driver."); 61 module_param_array(irq, int, NULL, 0444); 62 MODULE_PARM_DESC(irq, "IRQ # for GUS MAX driver."); 63 module_param_array(dma1, int, NULL, 0444); 64 MODULE_PARM_DESC(dma1, "DMA1 # for GUS MAX driver."); 65 module_param_array(dma2, int, NULL, 0444); 66 MODULE_PARM_DESC(dma2, "DMA2 # for GUS MAX driver."); 67 module_param_array(joystick_dac, int, NULL, 0444); 68 MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for GUS MAX driver."); 69 module_param_array(channels, int, NULL, 0444); 70 MODULE_PARM_DESC(channels, "Used GF1 channels for GUS MAX driver."); 71 module_param_array(pcm_channels, int, NULL, 0444); 72 MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for GUS MAX driver."); 73 74 struct snd_gusmax { 75 int irq; 76 struct snd_card *card; 77 struct snd_gus_card *gus; 78 struct snd_wss *wss; 79 unsigned short gus_status_reg; 80 unsigned short pcm_status_reg; 81 }; 82 83 #define PFX "gusmax: " 84 85 static int snd_gusmax_detect(struct snd_gus_card *gus) 86 { 87 unsigned char d; 88 89 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0); /* reset GF1 */ 90 if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) { 91 snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d); 92 return -ENODEV; 93 } 94 udelay(160); 95 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1); /* release reset */ 96 udelay(160); 97 if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) { 98 snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d); 99 return -ENODEV; 100 } 101 102 return 0; 103 } 104 105 static irqreturn_t snd_gusmax_interrupt(int irq, void *dev_id) 106 { 107 struct snd_gusmax *maxcard = dev_id; 108 int loop, max = 5; 109 int handled = 0; 110 111 do { 112 loop = 0; 113 if (inb(maxcard->gus_status_reg)) { 114 handled = 1; 115 snd_gus_interrupt(irq, maxcard->gus); 116 loop++; 117 } 118 if (inb(maxcard->pcm_status_reg) & 0x01) { /* IRQ bit is set? */ 119 handled = 1; 120 snd_wss_interrupt(irq, maxcard->wss); 121 loop++; 122 } 123 } while (loop && --max > 0); 124 return IRQ_RETVAL(handled); 125 } 126 127 static void snd_gusmax_init(int dev, struct snd_card *card, 128 struct snd_gus_card *gus) 129 { 130 gus->equal_irq = 1; 131 gus->codec_flag = 1; 132 gus->joystick_dac = joystick_dac[dev]; 133 /* init control register */ 134 gus->max_cntrl_val = (gus->gf1.port >> 4) & 0x0f; 135 if (gus->gf1.dma1 > 3) 136 gus->max_cntrl_val |= 0x10; 137 if (gus->gf1.dma2 > 3) 138 gus->max_cntrl_val |= 0x20; 139 gus->max_cntrl_val |= 0x40; 140 outb(gus->max_cntrl_val, GUSP(gus, MAXCNTRLPORT)); 141 } 142 143 static int snd_gusmax_mixer(struct snd_wss *chip) 144 { 145 struct snd_card *card = chip->card; 146 struct snd_ctl_elem_id id1, id2; 147 int err; 148 149 memset(&id1, 0, sizeof(id1)); 150 memset(&id2, 0, sizeof(id2)); 151 id1.iface = id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 152 /* reassign AUXA to SYNTHESIZER */ 153 strcpy(id1.name, "Aux Playback Switch"); 154 strcpy(id2.name, "Synth Playback Switch"); 155 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0) 156 return err; 157 strcpy(id1.name, "Aux Playback Volume"); 158 strcpy(id2.name, "Synth Playback Volume"); 159 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0) 160 return err; 161 /* reassign AUXB to CD */ 162 strcpy(id1.name, "Aux Playback Switch"); id1.index = 1; 163 strcpy(id2.name, "CD Playback Switch"); 164 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0) 165 return err; 166 strcpy(id1.name, "Aux Playback Volume"); 167 strcpy(id2.name, "CD Playback Volume"); 168 if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0) 169 return err; 170 #if 0 171 /* reassign Mono Input to MIC */ 172 if (snd_mixer_group_rename(mixer, 173 SNDRV_MIXER_IN_MONO, 0, 174 SNDRV_MIXER_IN_MIC, 0) < 0) 175 goto __error; 176 if (snd_mixer_elem_rename(mixer, 177 SNDRV_MIXER_IN_MONO, 0, SNDRV_MIXER_ETYPE_INPUT, 178 SNDRV_MIXER_IN_MIC, 0) < 0) 179 goto __error; 180 if (snd_mixer_elem_rename(mixer, 181 "Mono Capture Volume", 0, SNDRV_MIXER_ETYPE_VOLUME1, 182 "Mic Capture Volume", 0) < 0) 183 goto __error; 184 if (snd_mixer_elem_rename(mixer, 185 "Mono Capture Switch", 0, SNDRV_MIXER_ETYPE_SWITCH1, 186 "Mic Capture Switch", 0) < 0) 187 goto __error; 188 #endif 189 return 0; 190 } 191 192 static void snd_gusmax_free(struct snd_card *card) 193 { 194 struct snd_gusmax *maxcard = card->private_data; 195 196 if (maxcard == NULL) 197 return; 198 if (maxcard->irq >= 0) 199 free_irq(maxcard->irq, (void *)maxcard); 200 } 201 202 static int snd_gusmax_match(struct device *pdev, unsigned int dev) 203 { 204 return enable[dev]; 205 } 206 207 static int snd_gusmax_probe(struct device *pdev, unsigned int dev) 208 { 209 static int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, -1}; 210 static int possible_dmas[] = {5, 6, 7, 1, 3, -1}; 211 int xirq, xdma1, xdma2, err; 212 struct snd_card *card; 213 struct snd_gus_card *gus = NULL; 214 struct snd_wss *wss; 215 struct snd_gusmax *maxcard; 216 217 err = snd_card_create(index[dev], id[dev], THIS_MODULE, 218 sizeof(struct snd_gusmax), &card); 219 if (err < 0) 220 return err; 221 card->private_free = snd_gusmax_free; 222 maxcard = card->private_data; 223 maxcard->card = card; 224 maxcard->irq = -1; 225 226 xirq = irq[dev]; 227 if (xirq == SNDRV_AUTO_IRQ) { 228 if ((xirq = snd_legacy_find_free_irq(possible_irqs)) < 0) { 229 snd_printk(KERN_ERR PFX "unable to find a free IRQ\n"); 230 err = -EBUSY; 231 goto _err; 232 } 233 } 234 xdma1 = dma1[dev]; 235 if (xdma1 == SNDRV_AUTO_DMA) { 236 if ((xdma1 = snd_legacy_find_free_dma(possible_dmas)) < 0) { 237 snd_printk(KERN_ERR PFX "unable to find a free DMA1\n"); 238 err = -EBUSY; 239 goto _err; 240 } 241 } 242 xdma2 = dma2[dev]; 243 if (xdma2 == SNDRV_AUTO_DMA) { 244 if ((xdma2 = snd_legacy_find_free_dma(possible_dmas)) < 0) { 245 snd_printk(KERN_ERR PFX "unable to find a free DMA2\n"); 246 err = -EBUSY; 247 goto _err; 248 } 249 } 250 251 if (port[dev] != SNDRV_AUTO_PORT) { 252 err = snd_gus_create(card, 253 port[dev], 254 -xirq, xdma1, xdma2, 255 0, channels[dev], 256 pcm_channels[dev], 257 0, &gus); 258 } else { 259 static unsigned long possible_ports[] = { 260 0x220, 0x230, 0x240, 0x250, 0x260 261 }; 262 int i; 263 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) { 264 err = snd_gus_create(card, 265 possible_ports[i], 266 -xirq, xdma1, xdma2, 267 0, channels[dev], 268 pcm_channels[dev], 269 0, &gus); 270 if (err >= 0) { 271 port[dev] = possible_ports[i]; 272 break; 273 } 274 } 275 } 276 if (err < 0) 277 goto _err; 278 279 if ((err = snd_gusmax_detect(gus)) < 0) 280 goto _err; 281 282 maxcard->gus_status_reg = gus->gf1.reg_irqstat; 283 maxcard->pcm_status_reg = gus->gf1.port + 0x10c + 2; 284 snd_gusmax_init(dev, card, gus); 285 if ((err = snd_gus_initialize(gus)) < 0) 286 goto _err; 287 288 if (!gus->max_flag) { 289 snd_printk(KERN_ERR PFX "GUS MAX soundcard was not detected at 0x%lx\n", gus->gf1.port); 290 err = -ENODEV; 291 goto _err; 292 } 293 294 if (request_irq(xirq, snd_gusmax_interrupt, 0, "GUS MAX", (void *)maxcard)) { 295 snd_printk(KERN_ERR PFX "unable to grab IRQ %d\n", xirq); 296 err = -EBUSY; 297 goto _err; 298 } 299 maxcard->irq = xirq; 300 301 err = snd_wss_create(card, 302 gus->gf1.port + 0x10c, -1, xirq, 303 xdma2 < 0 ? xdma1 : xdma2, xdma1, 304 WSS_HW_DETECT, 305 WSS_HWSHARE_IRQ | 306 WSS_HWSHARE_DMA1 | 307 WSS_HWSHARE_DMA2, 308 &wss); 309 if (err < 0) 310 goto _err; 311 312 err = snd_wss_pcm(wss, 0, NULL); 313 if (err < 0) 314 goto _err; 315 316 err = snd_wss_mixer(wss); 317 if (err < 0) 318 goto _err; 319 320 err = snd_wss_timer(wss, 2, NULL); 321 if (err < 0) 322 goto _err; 323 324 if (pcm_channels[dev] > 0) { 325 if ((err = snd_gf1_pcm_new(gus, 1, 1, NULL)) < 0) 326 goto _err; 327 } 328 err = snd_gusmax_mixer(wss); 329 if (err < 0) 330 goto _err; 331 332 err = snd_gf1_rawmidi_new(gus, 0, NULL); 333 if (err < 0) 334 goto _err; 335 336 sprintf(card->longname + strlen(card->longname), " at 0x%lx, irq %i, dma %i", gus->gf1.port, xirq, xdma1); 337 if (xdma2 >= 0) 338 sprintf(card->longname + strlen(card->longname), "&%i", xdma2); 339 340 snd_card_set_dev(card, pdev); 341 342 err = snd_card_register(card); 343 if (err < 0) 344 goto _err; 345 346 maxcard->gus = gus; 347 maxcard->wss = wss; 348 349 dev_set_drvdata(pdev, card); 350 return 0; 351 352 _err: 353 snd_card_free(card); 354 return err; 355 } 356 357 static int snd_gusmax_remove(struct device *devptr, unsigned int dev) 358 { 359 snd_card_free(dev_get_drvdata(devptr)); 360 return 0; 361 } 362 363 #define DEV_NAME "gusmax" 364 365 static struct isa_driver snd_gusmax_driver = { 366 .match = snd_gusmax_match, 367 .probe = snd_gusmax_probe, 368 .remove = snd_gusmax_remove, 369 /* FIXME: suspend/resume */ 370 .driver = { 371 .name = DEV_NAME 372 }, 373 }; 374 375 static int __init alsa_card_gusmax_init(void) 376 { 377 return isa_register_driver(&snd_gusmax_driver, SNDRV_CARDS); 378 } 379 380 static void __exit alsa_card_gusmax_exit(void) 381 { 382 isa_unregister_driver(&snd_gusmax_driver); 383 } 384 385 module_init(alsa_card_gusmax_init) 386 module_exit(alsa_card_gusmax_exit) 387