release/src-rt-6.x/linux/linux-2.6/sound/isa/gus/gusclassic.c

   1 /*
   2  *  Driver for Gravis UltraSound Classic soundcard
   3  *  Copyright (c) by Jaroslav Kysela <perex@suse.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 <sound/driver.h>
  23 #include <linux/init.h>
  24 #include <linux/err.h>
  25 #include <linux/isa.h>
  26 #include <linux/delay.h>
  27 #include <linux/time.h>
  28 #include <linux/moduleparam.h>
  29 #include <asm/dma.h>
  30 #include <sound/core.h>
  31 #include <sound/gus.h>
  32 #define SNDRV_LEGACY_FIND_FREE_IRQ
  33 #define SNDRV_LEGACY_FIND_FREE_DMA
  34 #include <sound/initval.h>
  35
  36 #define CRD_NAME "Gravis UltraSound Classic"
  37 #define DEV_NAME "gusclassic"
  38
  39 MODULE_DESCRIPTION(CRD_NAME);
  40 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
  41 MODULE_LICENSE("GPL");
  42 MODULE_SUPPORTED_DEVICE("{{Gravis,UltraSound Classic}}");
  43
  44 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  45 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  46 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;  /* Enable this card */
  47 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* 0x220,0x230,0x240,0x250,0x260 */
  48 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 3,5,9,11,12,15 */
  49 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 1,3,5,6,7 */
  50 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 1,3,5,6,7 */
  51 static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29};
  52                                 /* 0 to 31, (0.59V-4.52V or 0.389V-2.98V) */
  53 static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24};
  54 static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2};
  55
  56 module_param_array(index, int, NULL, 0444);
  57 MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
  58 module_param_array(id, charp, NULL, 0444);
  59 MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
  60 module_param_array(enable, bool, NULL, 0444);
  61 MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
  62 module_param_array(port, long, NULL, 0444);
  63 MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
  64 module_param_array(irq, int, NULL, 0444);
  65 MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
  66 module_param_array(dma1, int, NULL, 0444);
  67 MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
  68 module_param_array(dma2, int, NULL, 0444);
  69 MODULE_PARM_DESC(dma2, "DMA2 # for " CRD_NAME " driver.");
  70 module_param_array(joystick_dac, int, NULL, 0444);
  71 MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for " CRD_NAME " driver.");
  72 module_param_array(channels, int, NULL, 0444);
  73 MODULE_PARM_DESC(channels, "GF1 channels for " CRD_NAME " driver.");
  74 module_param_array(pcm_channels, int, NULL, 0444);
  75 MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for " CRD_NAME " driver.");
  76
  77 static int __devinit snd_gusclassic_match(struct device *dev, unsigned int n)
  78 {
  79         return enable[n];
  80 }
  81
  82 static int __devinit snd_gusclassic_create(struct snd_card *card,
  83                 struct device *dev, unsigned int n, 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                         snd_printk(KERN_ERR "%s: unable to find a free IRQ\n",
  95                                 dev->bus_id);
  96                         return -EBUSY;
  97                 }
  98         }
  99         if (dma1[n] == SNDRV_AUTO_DMA) {
 100                 dma1[n] = snd_legacy_find_free_dma(possible_dmas);
 101                 if (dma1[n] < 0) {
 102                         snd_printk(KERN_ERR "%s: unable to find a free DMA1\n",
 103                                 dev->bus_id);
 104                         return -EBUSY;
 105                 }
 106         }
 107         if (dma2[n] == SNDRV_AUTO_DMA) {
 108                 dma2[n] = snd_legacy_find_free_dma(possible_dmas);
 109                 if (dma2[n] < 0) {
 110                         snd_printk(KERN_ERR "%s: unable to find a free DMA2\n",
 111                                 dev->bus_id);
 112                         return -EBUSY;
 113                 }
 114         }
 115
 116         if (port[n] != SNDRV_AUTO_PORT)
 117                 return snd_gus_create(card, port[n], irq[n], dma1[n], dma2[n],
 118                                 0, channels[n], pcm_channels[n], 0, rgus);
 119
 120         i = 0;
 121         do {
 122                 port[n] = possible_ports[i];
 123                 error = snd_gus_create(card, port[n], irq[n], dma1[n], dma2[n],
 124                                 0, channels[n], pcm_channels[n], 0, rgus);
 125         } while (error < 0 && ++i < ARRAY_SIZE(possible_ports));
 126
 127         return error;
 128 }
 129
 130 static int __devinit snd_gusclassic_detect(struct snd_gus_card *gus)
 131 {
 132         unsigned char d;
 133
 134         snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0);   /* reset GF1 */
 135         if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) {
 136                 snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d);
 137                 return -ENODEV;
 138         }
 139         udelay(160);
 140         snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1);   /* release reset */
 141         udelay(160);
 142         if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) {
 143                 snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d);
 144                 return -ENODEV;
 145         }
 146         return 0;
 147 }
 148
 149 static int __devinit snd_gusclassic_probe(struct device *dev, unsigned int n)
 150 {
 151         struct snd_card *card;
 152         struct snd_gus_card *gus;
 153         int error;
 154
 155         card = snd_card_new(index[n], id[n], THIS_MODULE, 0);
 156         if (!card)
 157                 return -EINVAL;
 158
 159         if (pcm_channels[n] < 2)
 160                 pcm_channels[n] = 2;
 161
 162         error = snd_gusclassic_create(card, dev, n, &gus);
 163         if (error < 0)
 164                 goto out;
 165
 166         error = snd_gusclassic_detect(gus);
 167         if (error < 0)
 168                 goto out;
 169
 170         gus->joystick_dac = joystick_dac[n];
 171
 172         error = snd_gus_initialize(gus);
 173         if (error < 0)
 174                 goto out;
 175
 176         error = -ENODEV;
 177         if (gus->max_flag || gus->ess_flag) {
 178                 snd_printk(KERN_ERR "%s: GUS Classic or ACE soundcard was "
 179                         "not detected at 0x%lx\n", dev->bus_id, gus->gf1.port);
 180                 goto out;
 181         }
 182
 183         error = snd_gf1_new_mixer(gus);
 184         if (error < 0)
 185                 goto out;
 186
 187         error = snd_gf1_pcm_new(gus, 0, 0, NULL);
 188         if (error < 0)
 189                 goto out;
 190
 191         if (!gus->ace_flag) {
 192                 error = snd_gf1_rawmidi_new(gus, 0, NULL);
 193                 if (error < 0)
 194                         goto out;
 195         }
 196
 197         sprintf(card->longname + strlen(card->longname),
 198                 " at 0x%lx, irq %d, dma %d",
 199                 gus->gf1.port, gus->gf1.irq, gus->gf1.dma1);
 200
 201         if (gus->gf1.dma2 >= 0)
 202                 sprintf(card->longname + strlen(card->longname),
 203                         "&%d", gus->gf1.dma2);
 204
 205         snd_card_set_dev(card, dev);
 206
 207         error = snd_card_register(card);
 208         if (error < 0)
 209                 goto out;
 210
 211         dev_set_drvdata(dev, card);
 212         return 0;
 213
 214 out:    snd_card_free(card);
 215         return error;
 216 }
 217
 218 static int __devexit snd_gusclassic_remove(struct device *dev, unsigned int n)
 219 {
 220         snd_card_free(dev_get_drvdata(dev));
 221         dev_set_drvdata(dev, NULL);
 222         return 0;
 223 }
 224
 225 static struct isa_driver snd_gusclassic_driver = {
 226         .match          = snd_gusclassic_match,
 227         .probe          = snd_gusclassic_probe,
 228         .remove         = __devexit_p(snd_gusclassic_remove),
 229 #if 0   /* FIXME */
 230         .suspend        = snd_gusclassic_suspend,
 231         .remove         = snd_gusclassic_remove,
 232 #endif
 233         .driver         = {
 234                 .name   = DEV_NAME
 235         }
 236 };
 237
 238 static int __init alsa_card_gusclassic_init(void)
 239 {
 240         return isa_register_driver(&snd_gusclassic_driver, SNDRV_CARDS);
 241 }
 242
 243 static void __exit alsa_card_gusclassic_exit(void)
 244 {
 245         isa_unregister_driver(&snd_gusclassic_driver);
 246 }
 247
 248 module_init(alsa_card_gusclassic_init);
 249 module_exit(alsa_card_gusclassic_exit);