kernel/sound/isa/gus/gusclassic.c

   1 /*
   2  *  Driver for Gravis UltraSound Classic 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 #define SNDRV_LEGACY_FIND_FREE_IRQ
  32 #define SNDRV_LEGACY_FIND_FREE_DMA
  33 #include <sound/initval.h>
  34
  35 #define CRD_NAME "Gravis UltraSound Classic"
  36 #define DEV_NAME "gusclassic"
  37
  38 MODULE_DESCRIPTION(CRD_NAME);
  39 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
  40 MODULE_LICENSE("GPL");
  41 MODULE_SUPPORTED_DEVICE("{{Gravis,UltraSound Classic}}");
  42
  43 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  44 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  45 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
  46 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* 0x220,0x230,0x240,0x250,0x260 */
  47 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 3,5,9,11,12,15 */
  48 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 1,3,5,6,7 */
  49 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 1,3,5,6,7 */
  50 static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29};
  51                                 /* 0 to 31, (0.59V-4.52V or 0.389V-2.98V) */
  52 static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24};
  53 static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2};
  54
  55 module_param_array(index, int, NULL, 0444);
  56 MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
  57 module_param_array(id, charp, NULL, 0444);
  58 MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
  59 module_param_array(enable, bool, NULL, 0444);
  60 MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
  61 module_param_array(port, long, NULL, 0444);
  62 MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
  63 module_param_array(irq, int, NULL, 0444);
  64 MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
  65 module_param_array(dma1, int, NULL, 0444);
  66 MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
  67 module_param_array(dma2, int, NULL, 0444);
  68 MODULE_PARM_DESC(dma2, "DMA2 # for " CRD_NAME " driver.");
  69 module_param_array(joystick_dac, int, NULL, 0444);
  70 MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for " CRD_NAME " driver.");
  71 module_param_array(channels, int, NULL, 0444);
  72 MODULE_PARM_DESC(channels, "GF1 channels for " CRD_NAME " driver.");
  73 module_param_array(pcm_channels, int, NULL, 0444);
  74 MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for " CRD_NAME " driver.");
  75
  76 static int snd_gusclassic_match(struct device *dev, unsigned int n)
  77 {
  78         return enable[n];
  79 }
  80
  81 static int snd_gusclassic_create(struct snd_card *card,
  82                                  struct device *dev, unsigned int n,
  83                                  struct snd_gus_card **rgus)
  84 {
  85         static long possible_ports[] = {0x220, 0x230, 0x240, 0x250, 0x260};
  86         static int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, 4, -1};
  87         static int possible_dmas[] = {5, 6, 7, 1, 3, -1};
  88
  89         int i, error;
  90
  91         if (irq[n] == SNDRV_AUTO_IRQ) {
  92                 irq[n] = snd_legacy_find_free_irq(possible_irqs);
  93                 if (irq[n] < 0) {
  94                         dev_err(dev, "unable to find a free IRQ\n");
  95                         return -EBUSY;
  96                 }
  97         }
  98         if (dma1[n] == SNDRV_AUTO_DMA) {
  99                 dma1[n] = snd_legacy_find_free_dma(possible_dmas);
 100                 if (dma1[n] < 0) {
 101                         dev_err(dev, "unable to find a free DMA1\n");
 102                         return -EBUSY;
 103                 }
 104         }
 105         if (dma2[n] == SNDRV_AUTO_DMA) {
 106                 dma2[n] = snd_legacy_find_free_dma(possible_dmas);
 107                 if (dma2[n] < 0) {
 108                         dev_err(dev, "unable to find a free DMA2\n");
 109                         return -EBUSY;
 110                 }
 111         }
 112
 113         if (port[n] != SNDRV_AUTO_PORT)
 114                 return snd_gus_create(card, port[n], irq[n], dma1[n], dma2[n],
 115                                 0, channels[n], pcm_channels[n], 0, rgus);
 116
 117         i = 0;
 118         do {
 119                 port[n] = possible_ports[i];
 120                 error = snd_gus_create(card, port[n], irq[n], dma1[n], dma2[n],
 121                                 0, channels[n], pcm_channels[n], 0, rgus);
 122         } while (error < 0 && ++i < ARRAY_SIZE(possible_ports));
 123
 124         return error;
 125 }
 126
 127 static int snd_gusclassic_detect(struct snd_gus_card *gus)
 128 {
 129         unsigned char d;
 130
 131         snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0);   /* reset GF1 */
 132         if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) {
 133                 snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d);
 134                 return -ENODEV;
 135         }
 136         udelay(160);
 137         snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1);   /* release reset */
 138         udelay(160);
 139         if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) {
 140                 snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d);
 141                 return -ENODEV;
 142         }
 143         return 0;
 144 }
 145
 146 static int snd_gusclassic_probe(struct device *dev, unsigned int n)
 147 {
 148         struct snd_card *card;
 149         struct snd_gus_card *gus;
 150         int error;
 151
 152         error = snd_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card);
 153         if (error < 0)
 154                 return error;
 155
 156         if (pcm_channels[n] < 2)
 157                 pcm_channels[n] = 2;
 158
 159         error = snd_gusclassic_create(card, dev, n, &gus);
 160         if (error < 0)
 161                 goto out;
 162
 163         error = snd_gusclassic_detect(gus);
 164         if (error < 0)
 165                 goto out;
 166
 167         gus->joystick_dac = joystick_dac[n];
 168
 169         error = snd_gus_initialize(gus);
 170         if (error < 0)
 171                 goto out;
 172
 173         error = -ENODEV;
 174         if (gus->max_flag || gus->ess_flag) {
 175                 dev_err(dev, "GUS Classic or ACE soundcard was "
 176                         "not detected at 0x%lx\n", gus->gf1.port);
 177                 goto out;
 178         }
 179
 180         error = snd_gf1_new_mixer(gus);
 181         if (error < 0)
 182                 goto out;
 183
 184         error = snd_gf1_pcm_new(gus, 0, 0);
 185         if (error < 0)
 186                 goto out;
 187
 188         if (!gus->ace_flag) {
 189                 error = snd_gf1_rawmidi_new(gus, 0);
 190                 if (error < 0)
 191                         goto out;
 192         }
 193
 194         sprintf(card->longname + strlen(card->longname),
 195                 " at 0x%lx, irq %d, dma %d",
 196                 gus->gf1.port, gus->gf1.irq, gus->gf1.dma1);
 197
 198         if (gus->gf1.dma2 >= 0)
 199                 sprintf(card->longname + strlen(card->longname),
 200                         "&%d", gus->gf1.dma2);
 201
 202         error = snd_card_register(card);
 203         if (error < 0)
 204                 goto out;
 205
 206         dev_set_drvdata(dev, card);
 207         return 0;
 208
 209 out:    snd_card_free(card);
 210         return error;
 211 }
 212
 213 static int snd_gusclassic_remove(struct device *dev, unsigned int n)
 214 {
 215         snd_card_free(dev_get_drvdata(dev));
 216         return 0;
 217 }
 218
 219 static struct isa_driver snd_gusclassic_driver = {
 220         .match          = snd_gusclassic_match,
 221         .probe          = snd_gusclassic_probe,
 222         .remove         = snd_gusclassic_remove,
 223 #if 0   /* FIXME */
 224         .suspend        = snd_gusclassic_suspend,
 225         .remove         = snd_gusclassic_remove,
 226 #endif
 227         .driver         = {
 228                 .name   = DEV_NAME
 229         }
 230 };
 231
 232 static int __init alsa_card_gusclassic_init(void)
 233 {
 234         return isa_register_driver(&snd_gusclassic_driver, SNDRV_CARDS);
 235 }
 236
 237 static void __exit alsa_card_gusclassic_exit(void)
 238 {
 239         isa_unregister_driver(&snd_gusclassic_driver);
 240 }
 241
 242 module_init(alsa_card_gusclassic_init);
 243 module_exit(alsa_card_gusclassic_exit);