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 <asm/dma.h>
  24 #include <linux/init.h>
  25 #include <linux/delay.h>
  26 #include <linux/time.h>
  27 #include <linux/moduleparam.h>
  28 #include <sound/core.h>
  29 #include <sound/gus.h>
  30 #define SNDRV_LEGACY_AUTO_PROBE
  31 #define SNDRV_LEGACY_FIND_FREE_IRQ
  32 #define SNDRV_LEGACY_FIND_FREE_DMA
  33 #include <sound/initval.h>
  34
  35 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
  36 MODULE_DESCRIPTION("Gravis UltraSound Classic");
  37 MODULE_LICENSE("GPL");
  38 MODULE_SUPPORTED_DEVICE("{{Gravis,UltraSound Classic}}");
  39
  40 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  41 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  42 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;  /* Enable this card */
  43 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* 0x220,0x230,0x240,0x250,0x260 */
  44 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 3,5,9,11,12,15 */
  45 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 1,3,5,6,7 */
  46 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 1,3,5,6,7 */
  47 static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29};
  48                                 /* 0 to 31, (0.59V-4.52V or 0.389V-2.98V) */
  49 static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24};
  50 static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2};
  51
  52 module_param_array(index, int, NULL, 0444);
  53 MODULE_PARM_DESC(index, "Index value for GUS Classic soundcard.");
  54 module_param_array(id, charp, NULL, 0444);
  55 MODULE_PARM_DESC(id, "ID string for GUS Classic soundcard.");
  56 module_param_array(enable, bool, NULL, 0444);
  57 MODULE_PARM_DESC(enable, "Enable GUS Classic soundcard.");
  58 module_param_array(port, long, NULL, 0444);
  59 MODULE_PARM_DESC(port, "Port # for GUS Classic driver.");
  60 module_param_array(irq, int, NULL, 0444);
  61 MODULE_PARM_DESC(irq, "IRQ # for GUS Classic driver.");
  62 module_param_array(dma1, int, NULL, 0444);
  63 MODULE_PARM_DESC(dma1, "DMA1 # for GUS Classic driver.");
  64 module_param_array(dma2, int, NULL, 0444);
  65 MODULE_PARM_DESC(dma2, "DMA2 # for GUS Classic driver.");
  66 module_param_array(joystick_dac, int, NULL, 0444);
  67 MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for GUS Classic driver.");
  68 module_param_array(channels, int, NULL, 0444);
  69 MODULE_PARM_DESC(channels, "GF1 channels for GUS Classic driver.");
  70 module_param_array(pcm_channels, int, NULL, 0444);
  71 MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for GUS Classic driver.");
  72
  73 static snd_card_t *snd_gusclassic_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
  74
  75
  76 static int __init snd_gusclassic_detect(snd_gus_card_t * gus)
  77 {
  78         snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0);   /* reset GF1 */
  79 #ifdef CONFIG_SND_DEBUG_DETECT
  80         {
  81                 unsigned char d;
  82
  83                 if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) {
  84                         snd_printk("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d);
  85                         return -ENODEV;
  86                 }
  87         }
  88 #else
  89         if ((snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET) & 0x07) != 0)
  90                 return -ENODEV;
  91 #endif
  92         udelay(160);
  93         snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1);   /* release reset */
  94         udelay(160);
  95 #ifdef CONFIG_SND_DEBUG_DETECT
  96         {
  97                 unsigned char d;
  98
  99                 if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) {
 100                         snd_printk("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d);
 101                         return -ENODEV;
 102                 }
 103         }
 104 #else
 105         if ((snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET) & 0x07) != 1)
 106                 return -ENODEV;
 107 #endif
 108
 109         return 0;
 110 }
 111
 112 static void __init snd_gusclassic_init(int dev, snd_gus_card_t * gus)
 113 {
 114         gus->equal_irq = 0;
 115         gus->codec_flag = 0;
 116         gus->max_flag = 0;
 117         gus->joystick_dac = joystick_dac[dev];
 118 }
 119
 120 static int __init snd_gusclassic_probe(int dev)
 121 {
 122         static int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, 4, -1};
 123         static int possible_dmas[] = {5, 6, 7, 1, 3, -1};
 124         int xirq, xdma1, xdma2;
 125         snd_card_t *card;
 126         struct snd_gusclassic *guscard;
 127         snd_gus_card_t *gus = NULL;
 128         int err;
 129
 130         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
 131         if (card == NULL)
 132                 return -ENOMEM;
 133         guscard = (struct snd_gusclassic *)card->private_data;
 134         if (pcm_channels[dev] < 2)
 135                 pcm_channels[dev] = 2;
 136
 137         xirq = irq[dev];
 138         if (xirq == SNDRV_AUTO_IRQ) {
 139                 if ((xirq = snd_legacy_find_free_irq(possible_irqs)) < 0) {
 140                         snd_card_free(card);
 141                         snd_printk("unable to find a free IRQ\n");
 142                         return -EBUSY;
 143                 }
 144         }
 145         xdma1 = dma1[dev];
 146         if (xdma1 == SNDRV_AUTO_DMA) {
 147                 if ((xdma1 = snd_legacy_find_free_dma(possible_dmas)) < 0) {
 148                         snd_card_free(card);
 149                         snd_printk("unable to find a free DMA1\n");
 150                         return -EBUSY;
 151                 }
 152         }
 153         xdma2 = dma2[dev];
 154         if (xdma2 == SNDRV_AUTO_DMA) {
 155                 if ((xdma2 = snd_legacy_find_free_dma(possible_dmas)) < 0) {
 156                         snd_card_free(card);
 157                         snd_printk("unable to find a free DMA2\n");
 158                         return -EBUSY;
 159                 }
 160         }
 161
 162
 163         if ((err = snd_gus_create(card,
 164                                   port[dev],
 165                                   xirq, xdma1, xdma2,
 166                                   0, channels[dev], pcm_channels[dev],
 167                                   0, &gus)) < 0) {
 168                 snd_card_free(card);
 169                 return err;
 170         }
 171         if ((err = snd_gusclassic_detect(gus)) < 0) {
 172                 snd_card_free(card);
 173                 return err;
 174         }
 175         snd_gusclassic_init(dev, gus);
 176         if ((err = snd_gus_initialize(gus)) < 0) {
 177                 snd_card_free(card);
 178                 return err;
 179         }
 180         if (gus->max_flag || gus->ess_flag) {
 181                 snd_printdd("GUS Classic or ACE soundcard was not detected at 0x%lx\n", gus->gf1.port);
 182                 snd_card_free(card);
 183                 return -ENODEV;
 184         }
 185         if ((err = snd_gf1_new_mixer(gus)) < 0) {
 186                 snd_card_free(card);
 187                 return err;
 188         }
 189         if ((err = snd_gf1_pcm_new(gus, 0, 0, NULL)) < 0) {
 190                 snd_card_free(card);
 191                 return err;
 192         }
 193         if (!gus->ace_flag) {
 194                 if ((err = snd_gf1_rawmidi_new(gus, 0, NULL)) < 0) {
 195                         snd_card_free(card);
 196                         return err;
 197                 }
 198         }
 199         sprintf(card->longname + strlen(card->longname), " at 0x%lx, irq %d, dma %d", gus->gf1.port, xirq, xdma1);
 200         if (dma2 >= 0)
 201                 sprintf(card->longname + strlen(card->longname), "&%d", xdma2);
 202         if ((err = snd_card_register(card)) < 0) {
 203                 snd_card_free(card);
 204                 return err;
 205         }
 206         snd_gusclassic_cards[dev] = card;
 207         return 0;
 208 }
 209
 210 static int __init snd_gusclassic_legacy_auto_probe(unsigned long xport)
 211 {
 212         static int dev;
 213         int res;
 214
 215         for ( ; dev < SNDRV_CARDS; dev++) {
 216                 if (!enable[dev] || port[dev] != SNDRV_AUTO_PORT)
 217                         continue;
 218                 port[dev] = xport;
 219                 res = snd_gusclassic_probe(dev);
 220                 if (res < 0)
 221                         port[dev] = SNDRV_AUTO_PORT;
 222                 return res;
 223         }
 224         return -ENODEV;
 225 }
 226
 227 static int __init alsa_card_gusclassic_init(void)
 228 {
 229         static unsigned long possible_ports[] = {0x220, 0x230, 0x240, 0x250, 0x260, -1};
 230         int dev, cards, i;
 231
 232         for (dev = cards = 0; dev < SNDRV_CARDS && enable[dev]; dev++) {
 233                 if (port[dev] == SNDRV_AUTO_PORT)
 234                         continue;
 235                 if (snd_gusclassic_probe(dev) >= 0)
 236                         cards++;
 237         }
 238         i = snd_legacy_auto_probe(possible_ports, snd_gusclassic_legacy_auto_probe);
 239         if (i > 0)
 240                 cards += i;
 241
 242         if (!cards) {
 243 #ifdef MODULE
 244                 printk(KERN_ERR "GUS Classic soundcard not found or device busy\n");
 245 #endif
 246                 return -ENODEV;
 247         }
 248         return 0;
 249 }
 250
 251 static void __exit alsa_card_gusclassic_exit(void)
 252 {
 253         int idx;
 254
 255         for (idx = 0; idx < SNDRV_CARDS; idx++)
 256                 snd_card_free(snd_gusclassic_cards[idx]);
 257 }
 258
 259 module_init(alsa_card_gusclassic_init)
 260 module_exit(alsa_card_gusclassic_exit)