1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Driver for Gravis UltraSound MAX soundcard 4 * Copyright (c) by Jaroslav Kysela <perex@perex.cz> 5 */ 6 7 #include <linux/init.h> 8 #include <linux/err.h> 9 #include <linux/isa.h> 10 #include <linux/delay.h> 11 #include <linux/time.h> 12 #include <linux/module.h> 13 #include <asm/dma.h> 14 #include <sound/core.h> 15 #include <sound/gus.h> 16 #include <sound/wss.h> 17 #define SNDRV_LEGACY_FIND_FREE_IRQ 18 #define SNDRV_LEGACY_FIND_FREE_DMA 19 #include <sound/initval.h> 20 21 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); 22 MODULE_DESCRIPTION("Gravis UltraSound MAX"); 23 MODULE_LICENSE("GPL"); 24 25 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ 26 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 27 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */ 28 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x230,0x240,0x250,0x260 */ 29 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 2,3,5,9,11,12,15 */ 30 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */ 31 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */ 32 static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29}; 33 /* 0 to 31, (0.59V-4.52V or 0.389V-2.98V) */ 34 static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24}; 35 static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2}; 36 37 module_param_array(index, int, NULL, 0444); 38 MODULE_PARM_DESC(index, "Index value for GUS MAX soundcard."); 39 module_param_array(id, charp, NULL, 0444); 40 MODULE_PARM_DESC(id, "ID string for GUS MAX soundcard."); 41 module_param_array(enable, bool, NULL, 0444); 42 MODULE_PARM_DESC(enable, "Enable GUS MAX soundcard."); 43 module_param_hw_array(port, long, ioport, NULL, 0444); 44 MODULE_PARM_DESC(port, "Port # for GUS MAX driver."); 45 module_param_hw_array(irq, int, irq, NULL, 0444); 46 MODULE_PARM_DESC(irq, "IRQ # for GUS MAX driver."); 47 module_param_hw_array(dma1, int, dma, NULL, 0444); 48 MODULE_PARM_DESC(dma1, "DMA1 # for GUS MAX driver."); 49 module_param_hw_array(dma2, int, dma, NULL, 0444); 50 MODULE_PARM_DESC(dma2, "DMA2 # for GUS MAX driver."); 51 module_param_array(joystick_dac, int, NULL, 0444); 52 MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for GUS MAX driver."); 53 module_param_array(channels, int, NULL, 0444); 54 MODULE_PARM_DESC(channels, "Used GF1 channels for GUS MAX driver."); 55 module_param_array(pcm_channels, int, NULL, 0444); 56 MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for GUS MAX driver."); 57 58 struct snd_gusmax { 59 int irq; 60 struct snd_card *card; 61 struct snd_gus_card *gus; 62 struct snd_wss *wss; 63 unsigned short gus_status_reg; 64 unsigned short pcm_status_reg; 65 }; 66 67 static int snd_gusmax_detect(struct snd_gus_card *gus) 68 { 69 unsigned char d; 70 71 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0); /* reset GF1 */ 72 d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET); 73 if ((d & 0x07) != 0) { 74 dev_dbg(gus->card->dev, "[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d); 75 return -ENODEV; 76 } 77 udelay(160); 78 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1); /* release reset */ 79 udelay(160); 80 d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET); 81 if ((d & 0x07) != 1) { 82 dev_dbg(gus->card->dev, "[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d); 83 return -ENODEV; 84 } 85 86 return 0; 87 } 88 89 static irqreturn_t snd_gusmax_interrupt(int irq, void *dev_id) 90 { 91 struct snd_gusmax *maxcard = dev_id; 92 int loop, max = 5; 93 int handled = 0; 94 95 do { 96 loop = 0; 97 if (inb(maxcard->gus_status_reg)) { 98 handled = 1; 99 snd_gus_interrupt(irq, maxcard->gus); 100 loop++; 101 } 102 if (inb(maxcard->pcm_status_reg) & 0x01) { /* IRQ bit is set? */ 103 handled = 1; 104 snd_wss_interrupt(irq, maxcard->wss); 105 loop++; 106 } 107 } while (loop && --max > 0); 108 return IRQ_RETVAL(handled); 109 } 110 111 static void snd_gusmax_init(int dev, struct snd_card *card, 112 struct snd_gus_card *gus) 113 { 114 gus->equal_irq = 1; 115 gus->codec_flag = 1; 116 gus->joystick_dac = joystick_dac[dev]; 117 /* init control register */ 118 gus->max_cntrl_val = (gus->gf1.port >> 4) & 0x0f; 119 if (gus->gf1.dma1 > 3) 120 gus->max_cntrl_val |= 0x10; 121 if (gus->gf1.dma2 > 3) 122 gus->max_cntrl_val |= 0x20; 123 gus->max_cntrl_val |= 0x40; 124 outb(gus->max_cntrl_val, GUSP(gus, MAXCNTRLPORT)); 125 } 126 127 static int snd_gusmax_mixer(struct snd_wss *chip) 128 { 129 struct snd_card *card = chip->card; 130 struct snd_ctl_elem_id id1, id2; 131 int err; 132 133 memset(&id1, 0, sizeof(id1)); 134 memset(&id2, 0, sizeof(id2)); 135 id1.iface = id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 136 /* reassign AUXA to SYNTHESIZER */ 137 strcpy(id1.name, "Aux Playback Switch"); 138 strcpy(id2.name, "Synth Playback Switch"); 139 err = snd_ctl_rename_id(card, &id1, &id2); 140 if (err < 0) 141 return err; 142 strcpy(id1.name, "Aux Playback Volume"); 143 strcpy(id2.name, "Synth Playback Volume"); 144 err = snd_ctl_rename_id(card, &id1, &id2); 145 if (err < 0) 146 return err; 147 /* reassign AUXB to CD */ 148 strcpy(id1.name, "Aux Playback Switch"); id1.index = 1; 149 strcpy(id2.name, "CD Playback Switch"); 150 err = snd_ctl_rename_id(card, &id1, &id2); 151 if (err < 0) 152 return err; 153 strcpy(id1.name, "Aux Playback Volume"); 154 strcpy(id2.name, "CD Playback Volume"); 155 err = snd_ctl_rename_id(card, &id1, &id2); 156 if (err < 0) 157 return err; 158 #if 0 159 /* reassign Mono Input to MIC */ 160 if (snd_mixer_group_rename(mixer, 161 SNDRV_MIXER_IN_MONO, 0, 162 SNDRV_MIXER_IN_MIC, 0) < 0) 163 goto __error; 164 if (snd_mixer_elem_rename(mixer, 165 SNDRV_MIXER_IN_MONO, 0, SNDRV_MIXER_ETYPE_INPUT, 166 SNDRV_MIXER_IN_MIC, 0) < 0) 167 goto __error; 168 if (snd_mixer_elem_rename(mixer, 169 "Mono Capture Volume", 0, SNDRV_MIXER_ETYPE_VOLUME1, 170 "Mic Capture Volume", 0) < 0) 171 goto __error; 172 if (snd_mixer_elem_rename(mixer, 173 "Mono Capture Switch", 0, SNDRV_MIXER_ETYPE_SWITCH1, 174 "Mic Capture Switch", 0) < 0) 175 goto __error; 176 #endif 177 return 0; 178 } 179 180 static int snd_gusmax_match(struct device *pdev, unsigned int dev) 181 { 182 return enable[dev]; 183 } 184 185 static int snd_gusmax_probe(struct device *pdev, unsigned int dev) 186 { 187 static const int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, -1}; 188 static const int possible_dmas[] = {5, 6, 7, 1, 3, -1}; 189 int xirq, xdma1, xdma2, err; 190 struct snd_card *card; 191 struct snd_gus_card *gus = NULL; 192 struct snd_wss *wss; 193 struct snd_gusmax *maxcard; 194 195 err = snd_devm_card_new(pdev, index[dev], id[dev], THIS_MODULE, 196 sizeof(struct snd_gusmax), &card); 197 if (err < 0) 198 return err; 199 maxcard = card->private_data; 200 maxcard->card = card; 201 maxcard->irq = -1; 202 203 xirq = irq[dev]; 204 if (xirq == SNDRV_AUTO_IRQ) { 205 xirq = snd_legacy_find_free_irq(possible_irqs); 206 if (xirq < 0) { 207 dev_err(pdev, "unable to find a free IRQ\n"); 208 return -EBUSY; 209 } 210 } 211 xdma1 = dma1[dev]; 212 if (xdma1 == SNDRV_AUTO_DMA) { 213 xdma1 = snd_legacy_find_free_dma(possible_dmas); 214 if (xdma1 < 0) { 215 dev_err(pdev, "unable to find a free DMA1\n"); 216 return -EBUSY; 217 } 218 } 219 xdma2 = dma2[dev]; 220 if (xdma2 == SNDRV_AUTO_DMA) { 221 xdma2 = snd_legacy_find_free_dma(possible_dmas); 222 if (xdma2 < 0) { 223 dev_err(pdev, "unable to find a free DMA2\n"); 224 return -EBUSY; 225 } 226 } 227 228 if (port[dev] != SNDRV_AUTO_PORT) { 229 err = snd_gus_create(card, 230 port[dev], 231 -xirq, xdma1, xdma2, 232 0, channels[dev], 233 pcm_channels[dev], 234 0, &gus); 235 } else { 236 static const unsigned long possible_ports[] = { 237 0x220, 0x230, 0x240, 0x250, 0x260 238 }; 239 int i; 240 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) { 241 err = snd_gus_create(card, 242 possible_ports[i], 243 -xirq, xdma1, xdma2, 244 0, channels[dev], 245 pcm_channels[dev], 246 0, &gus); 247 if (err >= 0) { 248 port[dev] = possible_ports[i]; 249 break; 250 } 251 } 252 } 253 if (err < 0) 254 return err; 255 256 err = snd_gusmax_detect(gus); 257 if (err < 0) 258 return err; 259 260 maxcard->gus_status_reg = gus->gf1.reg_irqstat; 261 maxcard->pcm_status_reg = gus->gf1.port + 0x10c + 2; 262 snd_gusmax_init(dev, card, gus); 263 err = snd_gus_initialize(gus); 264 if (err < 0) 265 return err; 266 267 if (!gus->max_flag) { 268 dev_err(pdev, "GUS MAX soundcard was not detected at 0x%lx\n", gus->gf1.port); 269 return -ENODEV; 270 } 271 272 if (devm_request_irq(card->dev, xirq, snd_gusmax_interrupt, 0, 273 "GUS MAX", (void *)maxcard)) { 274 dev_err(pdev, "unable to grab IRQ %d\n", xirq); 275 return -EBUSY; 276 } 277 maxcard->irq = xirq; 278 card->sync_irq = maxcard->irq; 279 280 err = snd_wss_create(card, 281 gus->gf1.port + 0x10c, -1, xirq, 282 xdma2 < 0 ? xdma1 : xdma2, xdma1, 283 WSS_HW_DETECT, 284 WSS_HWSHARE_IRQ | 285 WSS_HWSHARE_DMA1 | 286 WSS_HWSHARE_DMA2, 287 &wss); 288 if (err < 0) 289 return err; 290 291 err = snd_wss_pcm(wss, 0); 292 if (err < 0) 293 return err; 294 295 err = snd_wss_mixer(wss); 296 if (err < 0) 297 return err; 298 299 err = snd_wss_timer(wss, 2); 300 if (err < 0) 301 return err; 302 303 if (pcm_channels[dev] > 0) { 304 err = snd_gf1_pcm_new(gus, 1, 1); 305 if (err < 0) 306 return err; 307 } 308 err = snd_gusmax_mixer(wss); 309 if (err < 0) 310 return err; 311 312 err = snd_gf1_rawmidi_new(gus, 0); 313 if (err < 0) 314 return err; 315 316 sprintf(card->longname + strlen(card->longname), " at 0x%lx, irq %i, dma %i", gus->gf1.port, xirq, xdma1); 317 if (xdma2 >= 0) 318 sprintf(card->longname + strlen(card->longname), "&%i", xdma2); 319 320 err = snd_card_register(card); 321 if (err < 0) 322 return err; 323 324 maxcard->gus = gus; 325 maxcard->wss = wss; 326 327 dev_set_drvdata(pdev, card); 328 return 0; 329 } 330 331 #define DEV_NAME "gusmax" 332 333 static struct isa_driver snd_gusmax_driver = { 334 .match = snd_gusmax_match, 335 .probe = snd_gusmax_probe, 336 /* FIXME: suspend/resume */ 337 .driver = { 338 .name = DEV_NAME 339 }, 340 }; 341 342 module_isa_driver(snd_gusmax_driver, SNDRV_CARDS); 343