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 __devinit snd_gusclassic_match(struct device *dev, unsigned int n)
  77 {
  78         return enable[n];
  79 }
  80
  81 static int __devinit snd_gusclassic_create(struct snd_card *card,
  82                 struct device *dev, unsigned int n, struct snd_gus_card **rgus)
  83 {
  84         static long possible_ports[] = {0x220, 0x230, 0x240, 0x250, 0x260};
  85         static int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, 4, -1};
  86         static int possible_dmas[] = {5, 6, 7, 1, 3, -1};
  87
  88         int i, error;
  89
  90         if (irq[n] == SNDRV_AUTO_IRQ) {
  91                 irq[n] = snd_legacy_find_free_irq(possible_irqs);
  92                 if (irq[n] < 0) {
  93                         dev_err(dev, "unable to find a free IRQ\n");
  94                         return -EBUSY;
  95                 }
  96         }
  97         if (dma1[n] == SNDRV_AUTO_DMA) {
  98                 dma1[n] = snd_legacy_find_free_dma(possible_dmas);
  99                 if (dma1[n] < 0) {
 100                         dev_err(dev, "unable to find a free DMA1\n");
 101                         return -EBUSY;
 102                 }
 103         }
 104         if (dma2[n] == SNDRV_AUTO_DMA) {
 105                 dma2[n] = snd_legacy_find_free_dma(possible_dmas);
 106                 if (dma2[n] < 0) {
 107                         dev_err(dev, "unable to find a free DMA2\n");
 108                         return -EBUSY;
 109                 }
 110         }
 111
 112         if (port[n] != SNDRV_AUTO_PORT)
 113                 return snd_gus_create(card, port[n], irq[n], dma1[n], dma2[n],
 114                                 0, channels[n], pcm_channels[n], 0, rgus);
 115
 116         i = 0;
 117         do {
 118                 port[n] = possible_ports[i];
 119                 error = snd_gus_create(card, port[n], irq[n], dma1[n], dma2[n],
 120                                 0, channels[n], pcm_channels[n], 0, rgus);
 121         } while (error < 0 && ++i < ARRAY_SIZE(possible_ports));
 122
 123         return error;
 124 }
 125
 126 static int __devinit snd_gusclassic_detect(struct snd_gus_card *gus)
 127 {
 128         unsigned char d;
 129
 130         snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0);   /* reset GF1 */
 131         if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) {
 132                 snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d);
 133                 return -ENODEV;
 134         }
 135         udelay(160);
 136         snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1);   /* release reset */
 137         udelay(160);
 138         if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) {
 139                 snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d);
 140                 return -ENODEV;
 141         }
 142         return 0;
 143 }
 144
 145 static int __devinit snd_gusclassic_probe(struct device *dev, unsigned int n)
 146 {
 147         struct snd_card *card;
 148         struct snd_gus_card *gus;
 149         int error;
 150
 151         error = snd_card_create(index[n], id[n], THIS_MODULE, 0, &card);
 152         if (error < 0)
 153                 return error;
 154
 155         if (pcm_channels[n] < 2)
 156                 pcm_channels[n] = 2;
 157
 158         error = snd_gusclassic_create(card, dev, n, &gus);
 159         if (error < 0)
 160                 goto out;
 161
 162         error = snd_gusclassic_detect(gus);
 163         if (error < 0)
 164                 goto out;
 165
 166         gus->joystick_dac = joystick_dac[n];
 167
 168         error = snd_gus_initialize(gus);
 169         if (error < 0)
 170                 goto out;
 171
 172         error = -ENODEV;
 173         if (gus->max_flag || gus->ess_flag) {
 174                 dev_err(dev, "GUS Classic or ACE soundcard was "
 175                         "not detected at 0x%lx\n", gus->gf1.port);
 176                 goto out;
 177         }
 178
 179         error = snd_gf1_new_mixer(gus);
 180         if (error < 0)
 181                 goto out;
 182
 183         error = snd_gf1_pcm_new(gus, 0, 0, NULL);
 184         if (error < 0)
 185                 goto out;
 186
 187         if (!gus->ace_flag) {
 188                 error = snd_gf1_rawmidi_new(gus, 0, NULL);
 189                 if (error < 0)
 190                         goto out;
 191         }
 192
 193         sprintf(card->longname + strlen(card->longname),
 194                 " at 0x%lx, irq %d, dma %d",
 195                 gus->gf1.port, gus->gf1.irq, gus->gf1.dma1);
 196
 197         if (gus->gf1.dma2 >= 0)
 198                 sprintf(card->longname + strlen(card->longname),
 199                         "&%d", gus->gf1.dma2);
 200
 201         snd_card_set_dev(card, dev);
 202
 203         error = snd_card_register(card);
 204         if (error < 0)
 205                 goto out;
 206
 207         dev_set_drvdata(dev, card);
 208         return 0;
 209
 210 out:    snd_card_free(card);
 211         return error;
 212 }
 213
 214 static int __devexit snd_gusclassic_remove(struct device *dev, unsigned int n)
 215 {
 216         snd_card_free(dev_get_drvdata(dev));
 217         dev_set_drvdata(dev, NULL);
 218         return 0;
 219 }
 220
 221 static struct isa_driver snd_gusclassic_driver = {
 222         .match          = snd_gusclassic_match,
 223         .probe          = snd_gusclassic_probe,
 224         .remove         = __devexit_p(snd_gusclassic_remove),
 225 #if 0   /* FIXME */
 226         .suspend        = snd_gusclassic_suspend,
 227         .remove         = snd_gusclassic_remove,
 228 #endif
 229         .driver         = {
 230                 .name   = DEV_NAME
 231         }
 232 };
 233
 234 static int __init alsa_card_gusclassic_init(void)
 235 {
 236         return isa_register_driver(&snd_gusclassic_driver, SNDRV_CARDS);
 237 }
 238
 239 static void __exit alsa_card_gusclassic_exit(void)
 240 {
 241         isa_unregister_driver(&snd_gusclassic_driver);
 242 }
 243
 244 module_init(alsa_card_gusclassic_init);
 245 module_exit(alsa_card_gusclassic_exit);