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/ioport.h>
  26 #include <linux/module.h>
  27 #include <sound/core.h>
  28 #include <sound/sb.h>
  29 #include <sound/opl3.h>
  30 #include <sound/initval.h>
  31
  32 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
  33 MODULE_DESCRIPTION("Sound Blaster 1.0/2.0/Pro");
  34 MODULE_LICENSE("GPL");
  35 MODULE_SUPPORTED_DEVICE("{{Creative Labs,SB 1.0/SB 2.0/SB Pro}}");
  36
  37 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  38 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  39 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
  40 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* 0x220,0x240,0x260 */
  41 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 5,7,9,10 */
  42 static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 1,3 */
  43
  44 module_param_array(index, int, NULL, 0444);
  45 MODULE_PARM_DESC(index, "Index value for Sound Blaster soundcard.");
  46 module_param_array(id, charp, NULL, 0444);
  47 MODULE_PARM_DESC(id, "ID string for Sound Blaster soundcard.");
  48 module_param_array(enable, bool, NULL, 0444);
  49 MODULE_PARM_DESC(enable, "Enable Sound Blaster soundcard.");
  50 module_param_array(port, long, NULL, 0444);
  51 MODULE_PARM_DESC(port, "Port # for SB8 driver.");
  52 module_param_array(irq, int, NULL, 0444);
  53 MODULE_PARM_DESC(irq, "IRQ # for SB8 driver.");
  54 module_param_array(dma8, int, NULL, 0444);
  55 MODULE_PARM_DESC(dma8, "8-bit DMA # for SB8 driver.");
  56
  57 struct snd_sb8 {
  58         struct resource *fm_res;        /* used to block FM i/o region for legacy cards */
  59         struct snd_sb *chip;
  60 };
  61
  62 static irqreturn_t snd_sb8_interrupt(int irq, void *dev_id)
  63 {
  64         struct snd_sb *chip = dev_id;
  65
  66         if (chip->open & SB_OPEN_PCM) {
  67                 return snd_sb8dsp_interrupt(chip);
  68         } else {
  69                 return snd_sb8dsp_midi_interrupt(chip);
  70         }
  71 }
  72
  73 static void snd_sb8_free(struct snd_card *card)
  74 {
  75         struct snd_sb8 *acard = card->private_data;
  76
  77         if (acard == NULL)
  78                 return;
  79         release_and_free_resource(acard->fm_res);
  80 }
  81
  82 static int snd_sb8_match(struct device *pdev, unsigned int dev)
  83 {
  84         if (!enable[dev])
  85                 return 0;
  86         if (irq[dev] == SNDRV_AUTO_IRQ) {
  87                 dev_err(pdev, "please specify irq\n");
  88                 return 0;
  89         }
  90         if (dma8[dev] == SNDRV_AUTO_DMA) {
  91                 dev_err(pdev, "please specify dma8\n");
  92                 return 0;
  93         }
  94         return 1;
  95 }
  96
  97 static int snd_sb8_probe(struct device *pdev, unsigned int dev)
  98 {
  99         struct snd_sb *chip;
 100         struct snd_card *card;
 101         struct snd_sb8 *acard;
 102         struct snd_opl3 *opl3;
 103         int err;
 104
 105         err = snd_card_new(pdev, index[dev], id[dev], THIS_MODULE,
 106                            sizeof(struct snd_sb8), &card);
 107         if (err < 0)
 108                 return err;
 109         acard = card->private_data;
 110         card->private_free = snd_sb8_free;
 111
 112         /* block the 0x388 port to avoid PnP conflicts */
 113         acard->fm_res = request_region(0x388, 4, "SoundBlaster FM");
 114
 115         if (port[dev] != SNDRV_AUTO_PORT) {
 116                 if ((err = snd_sbdsp_create(card, port[dev], irq[dev],
 117                                             snd_sb8_interrupt,
 118                                             dma8[dev],
 119                                             -1,
 120                                             SB_HW_AUTO,
 121                                             &chip)) < 0)
 122                         goto _err;
 123         } else {
 124                 /* auto-probe legacy ports */
 125                 static unsigned long possible_ports[] = {
 126                         0x220, 0x240, 0x260,
 127                 };
 128                 int i;
 129                 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
 130                         err = snd_sbdsp_create(card, possible_ports[i],
 131                                                irq[dev],
 132                                                snd_sb8_interrupt,
 133                                                dma8[dev],
 134                                                -1,
 135                                                SB_HW_AUTO,
 136                                                &chip);
 137                         if (err >= 0) {
 138                                 port[dev] = possible_ports[i];
 139                                 break;
 140                         }
 141                 }
 142                 if (i >= ARRAY_SIZE(possible_ports)) {
 143                         err = -EINVAL;
 144                         goto _err;
 145                 }
 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         if ((err = snd_card_register(card)) < 0)
 196                 goto _err;
 197
 198         dev_set_drvdata(pdev, card);
 199         return 0;
 200
 201  _err:
 202         snd_card_free(card);
 203         return err;
 204 }
 205
 206 static int snd_sb8_remove(struct device *pdev, unsigned int dev)
 207 {
 208         snd_card_free(dev_get_drvdata(pdev));
 209         return 0;
 210 }
 211
 212 #ifdef CONFIG_PM
 213 static int snd_sb8_suspend(struct device *dev, unsigned int n,
 214                            pm_message_t state)
 215 {
 216         struct snd_card *card = dev_get_drvdata(dev);
 217         struct snd_sb8 *acard = card->private_data;
 218         struct snd_sb *chip = acard->chip;
 219
 220         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 221         snd_pcm_suspend_all(chip->pcm);
 222         snd_sbmixer_suspend(chip);
 223         return 0;
 224 }
 225
 226 static int snd_sb8_resume(struct device *dev, unsigned int n)
 227 {
 228         struct snd_card *card = dev_get_drvdata(dev);
 229         struct snd_sb8 *acard = card->private_data;
 230         struct snd_sb *chip = acard->chip;
 231
 232         snd_sbdsp_reset(chip);
 233         snd_sbmixer_resume(chip);
 234         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
 235         return 0;
 236 }
 237 #endif
 238
 239 #define DEV_NAME "sb8"
 240
 241 static struct isa_driver snd_sb8_driver = {
 242         .match          = snd_sb8_match,
 243         .probe          = snd_sb8_probe,
 244         .remove         = snd_sb8_remove,
 245 #ifdef CONFIG_PM
 246         .suspend        = snd_sb8_suspend,
 247         .resume         = snd_sb8_resume,
 248 #endif
 249         .driver         = {
 250                 .name   = DEV_NAME
 251         },
 252 };
 253
 254 static int __init alsa_card_sb8_init(void)
 255 {
 256         return isa_register_driver(&snd_sb8_driver, SNDRV_CARDS);
 257 }
 258
 259 static void __exit alsa_card_sb8_exit(void)
 260 {
 261         isa_unregister_driver(&snd_sb8_driver);
 262 }
 263
 264 module_init(alsa_card_sb8_init)
 265 module_exit(alsa_card_sb8_exit)