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