sound/isa/gus/gusclassic.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *  Driver for Gravis UltraSound Classic 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 #define SNDRV_LEGACY_FIND_FREE_IRQ
  17 #define SNDRV_LEGACY_FIND_FREE_DMA
  18 #include <sound/initval.h>
  19
  20 #define CRD_NAME "Gravis UltraSound Classic"
  21 #define DEV_NAME "gusclassic"
  22
  23 MODULE_DESCRIPTION(CRD_NAME);
  24 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
  25 MODULE_LICENSE("GPL");
  26 MODULE_SUPPORTED_DEVICE("{{Gravis,UltraSound Classic}}");
  27
  28 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  29 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  30 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
  31 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* 0x220,0x230,0x240,0x250,0x260 */
  32 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 3,5,9,11,12,15 */
  33 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 1,3,5,6,7 */
  34 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 1,3,5,6,7 */
  35 static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29};
  36                                 /* 0 to 31, (0.59V-4.52V or 0.389V-2.98V) */
  37 static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24};
  38 static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2};
  39
  40 module_param_array(index, int, NULL, 0444);
  41 MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
  42 module_param_array(id, charp, NULL, 0444);
  43 MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
  44 module_param_array(enable, bool, NULL, 0444);
  45 MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
  46 module_param_hw_array(port, long, ioport, NULL, 0444);
  47 MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
  48 module_param_hw_array(irq, int, irq, NULL, 0444);
  49 MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
  50 module_param_hw_array(dma1, int, dma, NULL, 0444);
  51 MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
  52 module_param_hw_array(dma2, int, dma, NULL, 0444);
  53 MODULE_PARM_DESC(dma2, "DMA2 # for " CRD_NAME " driver.");
  54 module_param_array(joystick_dac, int, NULL, 0444);
  55 MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for " CRD_NAME " driver.");
  56 module_param_array(channels, int, NULL, 0444);
  57 MODULE_PARM_DESC(channels, "GF1 channels for " CRD_NAME " driver.");
  58 module_param_array(pcm_channels, int, NULL, 0444);
  59 MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for " CRD_NAME " driver.");
  60
  61 static int snd_gusclassic_match(struct device *dev, unsigned int n)
  62 {
  63         return enable[n];
  64 }
  65
  66 static int snd_gusclassic_create(struct snd_card *card,
  67                                  struct device *dev, unsigned int n,
  68                                  struct snd_gus_card **rgus)
  69 {
  70         static long possible_ports[] = {0x220, 0x230, 0x240, 0x250, 0x260};
  71         static int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, 4, -1};
  72         static int possible_dmas[] = {5, 6, 7, 1, 3, -1};
  73
  74         int i, error;
  75
  76         if (irq[n] == SNDRV_AUTO_IRQ) {
  77                 irq[n] = snd_legacy_find_free_irq(possible_irqs);
  78                 if (irq[n] < 0) {
  79                         dev_err(dev, "unable to find a free IRQ\n");
  80                         return -EBUSY;
  81                 }
  82         }
  83         if (dma1[n] == SNDRV_AUTO_DMA) {
  84                 dma1[n] = snd_legacy_find_free_dma(possible_dmas);
  85                 if (dma1[n] < 0) {
  86                         dev_err(dev, "unable to find a free DMA1\n");
  87                         return -EBUSY;
  88                 }
  89         }
  90         if (dma2[n] == SNDRV_AUTO_DMA) {
  91                 dma2[n] = snd_legacy_find_free_dma(possible_dmas);
  92                 if (dma2[n] < 0) {
  93                         dev_err(dev, "unable to find a free DMA2\n");
  94                         return -EBUSY;
  95                 }
  96         }
  97
  98         if (port[n] != SNDRV_AUTO_PORT)
  99                 return snd_gus_create(card, port[n], irq[n], dma1[n], dma2[n],
 100                                 0, channels[n], pcm_channels[n], 0, rgus);
 101
 102         i = 0;
 103         do {
 104                 port[n] = possible_ports[i];
 105                 error = snd_gus_create(card, port[n], irq[n], dma1[n], dma2[n],
 106                                 0, channels[n], pcm_channels[n], 0, rgus);
 107         } while (error < 0 && ++i < ARRAY_SIZE(possible_ports));
 108
 109         return error;
 110 }
 111
 112 static int snd_gusclassic_detect(struct snd_gus_card *gus)
 113 {
 114         unsigned char d;
 115
 116         snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0);   /* reset GF1 */
 117         if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) {
 118                 snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d);
 119                 return -ENODEV;
 120         }
 121         udelay(160);
 122         snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1);   /* release reset */
 123         udelay(160);
 124         if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) {
 125                 snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d);
 126                 return -ENODEV;
 127         }
 128         return 0;
 129 }
 130
 131 static int snd_gusclassic_probe(struct device *dev, unsigned int n)
 132 {
 133         struct snd_card *card;
 134         struct snd_gus_card *gus;
 135         int error;
 136
 137         error = snd_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card);
 138         if (error < 0)
 139                 return error;
 140
 141         if (pcm_channels[n] < 2)
 142                 pcm_channels[n] = 2;
 143
 144         error = snd_gusclassic_create(card, dev, n, &gus);
 145         if (error < 0)
 146                 goto out;
 147
 148         error = snd_gusclassic_detect(gus);
 149         if (error < 0)
 150                 goto out;
 151
 152         gus->joystick_dac = joystick_dac[n];
 153
 154         error = snd_gus_initialize(gus);
 155         if (error < 0)
 156                 goto out;
 157
 158         error = -ENODEV;
 159         if (gus->max_flag || gus->ess_flag) {
 160                 dev_err(dev, "GUS Classic or ACE soundcard was "
 161                         "not detected at 0x%lx\n", gus->gf1.port);
 162                 goto out;
 163         }
 164
 165         error = snd_gf1_new_mixer(gus);
 166         if (error < 0)
 167                 goto out;
 168
 169         error = snd_gf1_pcm_new(gus, 0, 0);
 170         if (error < 0)
 171                 goto out;
 172
 173         if (!gus->ace_flag) {
 174                 error = snd_gf1_rawmidi_new(gus, 0);
 175                 if (error < 0)
 176                         goto out;
 177         }
 178
 179         sprintf(card->longname + strlen(card->longname),
 180                 " at 0x%lx, irq %d, dma %d",
 181                 gus->gf1.port, gus->gf1.irq, gus->gf1.dma1);
 182
 183         if (gus->gf1.dma2 >= 0)
 184                 sprintf(card->longname + strlen(card->longname),
 185                         "&%d", gus->gf1.dma2);
 186
 187         error = snd_card_register(card);
 188         if (error < 0)
 189                 goto out;
 190
 191         dev_set_drvdata(dev, card);
 192         return 0;
 193
 194 out:    snd_card_free(card);
 195         return error;
 196 }
 197
 198 static int snd_gusclassic_remove(struct device *dev, unsigned int n)
 199 {
 200         snd_card_free(dev_get_drvdata(dev));
 201         return 0;
 202 }
 203
 204 static struct isa_driver snd_gusclassic_driver = {
 205         .match          = snd_gusclassic_match,
 206         .probe          = snd_gusclassic_probe,
 207         .remove         = snd_gusclassic_remove,
 208 #if 0   /* FIXME */
 209         .suspend        = snd_gusclassic_suspend,
 210         .remove         = snd_gusclassic_remove,
 211 #endif
 212         .driver         = {
 213                 .name   = DEV_NAME
 214         }
 215 };
 216
 217 module_isa_driver(snd_gusclassic_driver, SNDRV_CARDS);