git.oblomov.eu Git - linux-2.6/blob - sound/isa/sb/sb8.c

   1 /*
   2  *  Driver for SoundBlaster 1.0/2.0/Pro soundcards and compatible
   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 <sound/driver.h>
  23 #include <linux/init.h>
  24 #include <linux/err.h>
  25 #include <linux/isa.h>
  26 #include <linux/slab.h>
  27 #include <linux/ioport.h>
  28 #include <linux/moduleparam.h>
  29 #include <sound/core.h>
  30 #include <sound/sb.h>
  31 #include <sound/opl3.h>
  32 #include <sound/initval.h>
  33
  34 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
  35 MODULE_DESCRIPTION("Sound Blaster 1.0/2.0/Pro");
  36 MODULE_LICENSE("GPL");
  37 MODULE_SUPPORTED_DEVICE("{{Creative Labs,SB 1.0/SB 2.0/SB Pro}}");
  38
  39 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  40 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  41 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;  /* Enable this card */
  42 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* 0x220,0x240,0x260 */
  43 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 5,7,9,10 */
  44 static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 1,3 */
  45
  46 module_param_array(index, int, NULL, 0444);
  47 MODULE_PARM_DESC(index, "Index value for Sound Blaster soundcard.");
  48 module_param_array(id, charp, NULL, 0444);
  49 MODULE_PARM_DESC(id, "ID string for Sound Blaster soundcard.");
  50 module_param_array(enable, bool, NULL, 0444);
  51 MODULE_PARM_DESC(enable, "Enable Sound Blaster soundcard.");
  52 module_param_array(port, long, NULL, 0444);
  53 MODULE_PARM_DESC(port, "Port # for SB8 driver.");
  54 module_param_array(irq, int, NULL, 0444);
  55 MODULE_PARM_DESC(irq, "IRQ # for SB8 driver.");
  56 module_param_array(dma8, int, NULL, 0444);
  57 MODULE_PARM_DESC(dma8, "8-bit DMA # for SB8 driver.");
  58
  59 struct snd_sb8 {
  60         struct resource *fm_res;        /* used to block FM i/o region for legacy cards */
  61         struct snd_sb *chip;
  62 };
  63
  64 static irqreturn_t snd_sb8_interrupt(int irq, void *dev_id)
  65 {
  66         struct snd_sb *chip = dev_id;
  67
  68         if (chip->open & SB_OPEN_PCM) {
  69                 return snd_sb8dsp_interrupt(chip);
  70         } else {
  71                 return snd_sb8dsp_midi_interrupt(chip);
  72         }
  73 }
  74
  75 static void snd_sb8_free(struct snd_card *card)
  76 {
  77         struct snd_sb8 *acard = (struct snd_sb8 *)card->private_data;
  78
  79         if (acard == NULL)
  80                 return;
  81         release_and_free_resource(acard->fm_res);
  82 }
  83
  84 static int __devinit snd_sb8_match(struct device *pdev, unsigned int dev)
  85 {
  86         if (!enable[dev])
  87                 return 0;
  88         if (irq[dev] == SNDRV_AUTO_IRQ) {
  89                 snd_printk(KERN_ERR "%s: please specify irq\n", pdev->bus_id);
  90                 return 0;
  91         }
  92         if (dma8[dev] == SNDRV_AUTO_DMA) {
  93                 snd_printk(KERN_ERR "%s: please specify dma8\n", pdev->bus_id);
  94                 return 0;
  95         }
  96         return 1;
  97 }
  98
  99 static int __devinit snd_sb8_probe(struct device *pdev, unsigned int dev)
 100 {
 101         struct snd_sb *chip;
 102         struct snd_card *card;
 103         struct snd_sb8 *acard;
 104         struct snd_opl3 *opl3;
 105         int err;
 106
 107         card = snd_card_new(index[dev], id[dev], THIS_MODULE,
 108                             sizeof(struct snd_sb8));
 109         if (card == NULL)
 110                 return -ENOMEM;
 111         acard = card->private_data;
 112         card->private_free = snd_sb8_free;
 113
 114         /* block the 0x388 port to avoid PnP conflicts */
 115         acard->fm_res = request_region(0x388, 4, "SoundBlaster FM");
 116
 117         if (port[dev] != SNDRV_AUTO_PORT) {
 118                 if ((err = snd_sbdsp_create(card, port[dev], irq[dev],
 119                                             snd_sb8_interrupt,
 120                                             dma8[dev],
 121                                             -1,
 122                                             SB_HW_AUTO,
 123                                             &chip)) < 0)
 124                         goto _err;
 125         } else {
 126                 /* auto-probe legacy ports */
 127                 static unsigned long possible_ports[] = {
 128                         0x220, 0x240, 0x260,
 129                 };
 130                 int i;
 131                 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
 132                         err = snd_sbdsp_create(card, possible_ports[i],
 133                                                irq[dev],
 134                                                snd_sb8_interrupt,
 135                                                dma8[dev],
 136                                                -1,
 137                                                SB_HW_AUTO,
 138                                                &chip);
 139                         if (err >= 0) {
 140                                 port[dev] = possible_ports[i];
 141                                 break;
 142                         }
 143                 }
 144                 if (i >= ARRAY_SIZE(possible_ports))
 145                         goto _err;
 146         }
 147         acard->chip = chip;
 148
 149         if (chip->hardware >= SB_HW_16) {
 150                 if (chip->hardware == SB_HW_ALS100)
 151                         snd_printk(KERN_WARNING "ALS100 chip detected at 0x%lx, try snd-als100 module\n",
 152                                     port[dev]);
 153                 else
 154                         snd_printk(KERN_WARNING "SB 16 chip detected at 0x%lx, try snd-sb16 module\n",
 155                                    port[dev]);
 156                 err = -ENODEV;
 157                 goto _err;
 158         }
 159
 160         if ((err = snd_sb8dsp_pcm(chip, 0, NULL)) < 0)
 161                 goto _err;
 162
 163         if ((err = snd_sbmixer_new(chip)) < 0)
 164                 goto _err;
 165
 166         if (chip->hardware == SB_HW_10 || chip->hardware == SB_HW_20) {
 167                 if ((err = snd_opl3_create(card, chip->port + 8, 0,
 168                                            OPL3_HW_AUTO, 1,
 169                                            &opl3)) < 0) {
 170                         snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx\n", chip->port + 8);
 171                 }
 172         } else {
 173                 if ((err = snd_opl3_create(card, chip->port, chip->port + 2,
 174                                            OPL3_HW_AUTO, 1,
 175                                            &opl3)) < 0) {
 176                         snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx-0x%lx\n",
 177                                    chip->port, chip->port + 2);
 178                 }
 179         }
 180         if (err >= 0) {
 181                 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0)
 182                         goto _err;
 183         }
 184
 185         if ((err = snd_sb8dsp_midi(chip, 0, NULL)) < 0)
 186                 goto _err;
 187
 188         strcpy(card->driver, chip->hardware == SB_HW_PRO ? "SB Pro" : "SB8");
 189         strcpy(card->shortname, chip->name);
 190         sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
 191                 chip->name,
 192                 chip->port,
 193                 irq[dev], dma8[dev]);
 194
 195         snd_card_set_dev(card, pdev);
 196
 197         if ((err = snd_card_register(card)) < 0)
 198                 goto _err;
 199
 200         dev_set_drvdata(pdev, card);
 201         return 0;
 202
 203  _err:
 204         snd_card_free(card);
 205         return err;
 206 }
 207
 208 static int __devexit snd_sb8_remove(struct device *pdev, unsigned int dev)
 209 {
 210         snd_card_free(dev_get_drvdata(pdev));
 211         dev_set_drvdata(pdev, NULL);
 212         return 0;
 213 }
 214
 215 #ifdef CONFIG_PM
 216 static int snd_sb8_suspend(struct device *dev, unsigned int n,
 217                            pm_message_t state)
 218 {
 219         struct snd_card *card = dev_get_drvdata(dev);
 220         struct snd_sb8 *acard = card->private_data;
 221         struct snd_sb *chip = acard->chip;
 222
 223         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 224         snd_pcm_suspend_all(chip->pcm);
 225         snd_sbmixer_suspend(chip);
 226         return 0;
 227 }
 228
 229 static int snd_sb8_resume(struct device *dev, unsigned int n)
 230 {
 231         struct snd_card *card = dev_get_drvdata(dev);
 232         struct snd_sb8 *acard = card->private_data;
 233         struct snd_sb *chip = acard->chip;
 234
 235         snd_sbdsp_reset(chip);
 236         snd_sbmixer_resume(chip);
 237         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
 238         return 0;
 239 }
 240 #endif
 241
 242 #define DEV_NAME "sb8"
 243
 244 static struct isa_driver snd_sb8_driver = {
 245         .match          = snd_sb8_match,
 246         .probe          = snd_sb8_probe,
 247         .remove         = __devexit_p(snd_sb8_remove),
 248 #ifdef CONFIG_PM
 249         .suspend        = snd_sb8_suspend,
 250         .resume         = snd_sb8_resume,
 251 #endif
 252         .driver         = {
 253                 .name   = DEV_NAME
 254         },
 255 };
 256
 257 static int __init alsa_card_sb8_init(void)
 258 {
 259         return isa_register_driver(&snd_sb8_driver, SNDRV_CARDS);
 260 }
 261
 262 static void __exit alsa_card_sb8_exit(void)
 263 {
 264         isa_unregister_driver(&snd_sb8_driver);
 265 }
 266
 267 module_init(alsa_card_sb8_init)
 268 module_exit(alsa_card_sb8_exit)