kernel/2.6.29.6-aldebaran-rt/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 <linux/init.h>
  23 #include <linux/err.h>
  24 #include <linux/isa.h>
  25 #include <linux/slab.h>
  26 #include <linux/ioport.h>
  27 #include <linux/moduleparam.h>
  28 #include <sound/core.h>
  29 #include <sound/sb.h>
  30 #include <sound/opl3.h>
  31 #include <sound/initval.h>
  32
  33 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
  34 MODULE_DESCRIPTION("Sound Blaster 1.0/2.0/Pro");
  35 MODULE_LICENSE("GPL");
  36 MODULE_SUPPORTED_DEVICE("{{Creative Labs,SB 1.0/SB 2.0/SB Pro}}");
  37
  38 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  39 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  40 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;  /* Enable this card */
  41 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* 0x220,0x240,0x260 */
  42 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 5,7,9,10 */
  43 static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 1,3 */
  44
  45 module_param_array(index, int, NULL, 0444);
  46 MODULE_PARM_DESC(index, "Index value for Sound Blaster soundcard.");
  47 module_param_array(id, charp, NULL, 0444);
  48 MODULE_PARM_DESC(id, "ID string for Sound Blaster soundcard.");
  49 module_param_array(enable, bool, NULL, 0444);
  50 MODULE_PARM_DESC(enable, "Enable Sound Blaster soundcard.");
  51 module_param_array(port, long, NULL, 0444);
  52 MODULE_PARM_DESC(port, "Port # for SB8 driver.");
  53 module_param_array(irq, int, NULL, 0444);
  54 MODULE_PARM_DESC(irq, "IRQ # for SB8 driver.");
  55 module_param_array(dma8, int, NULL, 0444);
  56 MODULE_PARM_DESC(dma8, "8-bit DMA # for SB8 driver.");
  57
  58 struct snd_sb8 {
  59         struct resource *fm_res;        /* used to block FM i/o region for legacy cards */
  60         struct snd_sb *chip;
  61 };
  62
  63 static irqreturn_t snd_sb8_interrupt(int irq, void *dev_id)
  64 {
  65         struct snd_sb *chip = dev_id;
  66
  67         if (chip->open & SB_OPEN_PCM) {
  68                 return snd_sb8dsp_interrupt(chip);
  69         } else {
  70                 return snd_sb8dsp_midi_interrupt(chip);
  71         }
  72 }
  73
  74 static void snd_sb8_free(struct snd_card *card)
  75 {
  76         struct snd_sb8 *acard = (struct snd_sb8 *)card->private_data;
  77
  78         if (acard == NULL)
  79                 return;
  80         release_and_free_resource(acard->fm_res);
  81 }
  82
  83 static int __devinit snd_sb8_match(struct device *pdev, unsigned int dev)
  84 {
  85         if (!enable[dev])
  86                 return 0;
  87         if (irq[dev] == SNDRV_AUTO_IRQ) {
  88                 dev_err(pdev, "please specify irq\n");
  89                 return 0;
  90         }
  91         if (dma8[dev] == SNDRV_AUTO_DMA) {
  92                 dev_err(pdev, "please specify dma8\n");
  93                 return 0;
  94         }
  95         return 1;
  96 }
  97
  98 static int __devinit snd_sb8_probe(struct device *pdev, unsigned int dev)
  99 {
 100         struct snd_sb *chip;
 101         struct snd_card *card;
 102         struct snd_sb8 *acard;
 103         struct snd_opl3 *opl3;
 104         int uninitialized_var(err);
 105
 106         card = snd_card_new(index[dev], id[dev], THIS_MODULE,
 107                             sizeof(struct snd_sb8));
 108         if (card == NULL)
 109                 return -ENOMEM;
 110         acard = card->private_data;
 111         card->private_free = snd_sb8_free;
 112
 113         /* block the 0x388 port to avoid PnP conflicts */
 114         acard->fm_res = request_region(0x388, 4, "SoundBlaster FM");
 115
 116         if (port[dev] != SNDRV_AUTO_PORT) {
 117                 if ((err = snd_sbdsp_create(card, port[dev], irq[dev],
 118                                             snd_sb8_interrupt,
 119                                             dma8[dev],
 120                                             -1,
 121                                             SB_HW_AUTO,
 122                                             &chip)) < 0)
 123                         goto _err;
 124         } else {
 125                 /* auto-probe legacy ports */
 126                 static unsigned long possible_ports[] = {
 127                         0x220, 0x240, 0x260,
 128                 };
 129                 int i;
 130                 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
 131                         err = snd_sbdsp_create(card, possible_ports[i],
 132                                                irq[dev],
 133                                                snd_sb8_interrupt,
 134                                                dma8[dev],
 135                                                -1,
 136                                                SB_HW_AUTO,
 137                                                &chip);
 138                         if (err >= 0) {
 139                                 port[dev] = possible_ports[i];
 140                                 break;
 141                         }
 142                 }
 143                 if (i >= ARRAY_SIZE(possible_ports)) {
 144                         err = -EINVAL;
 145                         goto _err;
 146                 }
 147         }
 148         acard->chip = chip;
 149
 150         if (chip->hardware >= SB_HW_16) {
 151                 if (chip->hardware == SB_HW_ALS100)
 152                         snd_printk(KERN_WARNING "ALS100 chip detected at 0x%lx, try snd-als100 module\n",
 153                                     port[dev]);
 154                 else
 155                         snd_printk(KERN_WARNING "SB 16 chip detected at 0x%lx, try snd-sb16 module\n",
 156                                    port[dev]);
 157                 err = -ENODEV;
 158                 goto _err;
 159         }
 160
 161         if ((err = snd_sb8dsp_pcm(chip, 0, NULL)) < 0)
 162                 goto _err;
 163
 164         if ((err = snd_sbmixer_new(chip)) < 0)
 165                 goto _err;
 166
 167         if (chip->hardware == SB_HW_10 || chip->hardware == SB_HW_20) {
 168                 if ((err = snd_opl3_create(card, chip->port + 8, 0,
 169                                            OPL3_HW_AUTO, 1,
 170                                            &opl3)) < 0) {
 171                         snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx\n", chip->port + 8);
 172                 }
 173         } else {
 174                 if ((err = snd_opl3_create(card, chip->port, chip->port + 2,
 175                                            OPL3_HW_AUTO, 1,
 176                                            &opl3)) < 0) {
 177                         snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx-0x%lx\n",
 178                                    chip->port, chip->port + 2);
 179                 }
 180         }
 181         if (err >= 0) {
 182                 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0)
 183                         goto _err;
 184         }
 185
 186         if ((err = snd_sb8dsp_midi(chip, 0, NULL)) < 0)
 187                 goto _err;
 188
 189         strcpy(card->driver, chip->hardware == SB_HW_PRO ? "SB Pro" : "SB8");
 190         strcpy(card->shortname, chip->name);
 191         sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
 192                 chip->name,
 193                 chip->port,
 194                 irq[dev], dma8[dev]);
 195
 196         snd_card_set_dev(card, pdev);
 197
 198         if ((err = snd_card_register(card)) < 0)
 199                 goto _err;
 200
 201         dev_set_drvdata(pdev, card);
 202         return 0;
 203
 204  _err:
 205         snd_card_free(card);
 206         return err;
 207 }
 208
 209 static int __devexit snd_sb8_remove(struct device *pdev, unsigned int dev)
 210 {
 211         snd_card_free(dev_get_drvdata(pdev));
 212         dev_set_drvdata(pdev, NULL);
 213         return 0;
 214 }
 215
 216 #ifdef CONFIG_PM
 217 static int snd_sb8_suspend(struct device *dev, unsigned int n,
 218                            pm_message_t state)
 219 {
 220         struct snd_card *card = dev_get_drvdata(dev);
 221         struct snd_sb8 *acard = card->private_data;
 222         struct snd_sb *chip = acard->chip;
 223
 224         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 225         snd_pcm_suspend_all(chip->pcm);
 226         snd_sbmixer_suspend(chip);
 227         return 0;
 228 }
 229
 230 static int snd_sb8_resume(struct device *dev, unsigned int n)
 231 {
 232         struct snd_card *card = dev_get_drvdata(dev);
 233         struct snd_sb8 *acard = card->private_data;
 234         struct snd_sb *chip = acard->chip;
 235
 236         snd_sbdsp_reset(chip);
 237         snd_sbmixer_resume(chip);
 238         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
 239         return 0;
 240 }
 241 #endif
 242
 243 #define DEV_NAME "sb8"
 244
 245 static struct isa_driver snd_sb8_driver = {
 246         .match          = snd_sb8_match,
 247         .probe          = snd_sb8_probe,
 248         .remove         = __devexit_p(snd_sb8_remove),
 249 #ifdef CONFIG_PM
 250         .suspend        = snd_sb8_suspend,
 251         .resume         = snd_sb8_resume,
 252 #endif
 253         .driver         = {
 254                 .name   = DEV_NAME
 255         },
 256 };
 257
 258 static int __init alsa_card_sb8_init(void)
 259 {
 260         return isa_register_driver(&snd_sb8_driver, SNDRV_CARDS);
 261 }
 262
 263 static void __exit alsa_card_sb8_exit(void)
 264 {
 265         isa_unregister_driver(&snd_sb8_driver);
 266 }
 267
 268 module_init(alsa_card_sb8_init)
 269 module_exit(alsa_card_sb8_exit)