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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * Driver for Gravis UltraSound MAX soundcard4 * 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_IRQ18#define SNDRV_LEGACY_FIND_FREE_DMA19#include <sound/initval.h>20 21MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");22MODULE_DESCRIPTION("Gravis UltraSound MAX");23MODULE_LICENSE("GPL");24 25static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */26static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */27static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */28static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x230,0x240,0x250,0x260 */29static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 2,3,5,9,11,12,15 */30static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */31static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3,5,6,7 */32static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29};33 /* 0 to 31, (0.59V-4.52V or 0.389V-2.98V) */34static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24};35static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2};36 37module_param_array(index, int, NULL, 0444);38MODULE_PARM_DESC(index, "Index value for GUS MAX soundcard.");39module_param_array(id, charp, NULL, 0444);40MODULE_PARM_DESC(id, "ID string for GUS MAX soundcard.");41module_param_array(enable, bool, NULL, 0444);42MODULE_PARM_DESC(enable, "Enable GUS MAX soundcard.");43module_param_hw_array(port, long, ioport, NULL, 0444);44MODULE_PARM_DESC(port, "Port # for GUS MAX driver.");45module_param_hw_array(irq, int, irq, NULL, 0444);46MODULE_PARM_DESC(irq, "IRQ # for GUS MAX driver.");47module_param_hw_array(dma1, int, dma, NULL, 0444);48MODULE_PARM_DESC(dma1, "DMA1 # for GUS MAX driver.");49module_param_hw_array(dma2, int, dma, NULL, 0444);50MODULE_PARM_DESC(dma2, "DMA2 # for GUS MAX driver.");51module_param_array(joystick_dac, int, NULL, 0444);52MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for GUS MAX driver.");53module_param_array(channels, int, NULL, 0444);54MODULE_PARM_DESC(channels, "Used GF1 channels for GUS MAX driver.");55module_param_array(pcm_channels, int, NULL, 0444);56MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for GUS MAX driver.");57 58struct 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 67static 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 89static 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 111static 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 127static 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 0159 /* 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#endif177 return 0;178}179 180static int snd_gusmax_match(struct device *pdev, unsigned int dev)181{182 return enable[dev];183}184 185static 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, 0x260238 };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 333static 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_NAME339 },340};341 342module_isa_driver(snd_gusmax_driver, SNDRV_CARDS);343