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