Pileus Git - ~andy/linux/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@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 <linux/init.h>
  24 #include <linux/err.h>
  25 #include <linux/platform_device.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@suse.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, struct pt_regs *regs)
  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 __init snd_sb8_probe(struct platform_device *pdev)
  85 {
  86         int dev = pdev->id;
  87         struct snd_sb *chip;
  88         struct snd_card *card;
  89         struct snd_sb8 *acard;
  90         struct snd_opl3 *opl3;
  91         int err;
  92
  93         card = snd_card_new(index[dev], id[dev], THIS_MODULE,
  94                             sizeof(struct snd_sb8));
  95         if (card == NULL)
  96                 return -ENOMEM;
  97         acard = card->private_data;
  98         card->private_free = snd_sb8_free;
  99
 100         /* block the 0x388 port to avoid PnP conflicts */
 101         acard->fm_res = request_region(0x388, 4, "SoundBlaster FM");
 102
 103         if (port[dev] != SNDRV_AUTO_PORT) {
 104                 if ((err = snd_sbdsp_create(card, port[dev], irq[dev],
 105                                             snd_sb8_interrupt,
 106                                             dma8[dev],
 107                                             -1,
 108                                             SB_HW_AUTO,
 109                                             &chip)) < 0)
 110                         goto _err;
 111         } else {
 112                 /* auto-probe legacy ports */
 113                 static unsigned long possible_ports[] = {
 114                         0x220, 0x240, 0x260,
 115                 };
 116                 int i;
 117                 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
 118                         err = snd_sbdsp_create(card, possible_ports[i],
 119                                                irq[dev],
 120                                                snd_sb8_interrupt,
 121                                                dma8[dev],
 122                                                -1,
 123                                                SB_HW_AUTO,
 124                                                &chip);
 125                         if (err >= 0) {
 126                                 port[dev] = possible_ports[i];
 127                                 break;
 128                         }
 129                 }
 130                 if (i >= ARRAY_SIZE(possible_ports))
 131                         goto _err;
 132         }
 133         acard->chip = chip;
 134
 135         if (chip->hardware >= SB_HW_16) {
 136                 if (chip->hardware == SB_HW_ALS100)
 137                         snd_printk(KERN_WARNING "ALS100 chip detected at 0x%lx, try snd-als100 module\n",
 138                                     port[dev]);
 139                 else
 140                         snd_printk(KERN_WARNING "SB 16 chip detected at 0x%lx, try snd-sb16 module\n",
 141                                    port[dev]);
 142                 err = -ENODEV;
 143                 goto _err;
 144         }
 145
 146         if ((err = snd_sb8dsp_pcm(chip, 0, NULL)) < 0)
 147                 goto _err;
 148
 149         if ((err = snd_sbmixer_new(chip)) < 0)
 150                 goto _err;
 151
 152         if (chip->hardware == SB_HW_10 || chip->hardware == SB_HW_20) {
 153                 if ((err = snd_opl3_create(card, chip->port + 8, 0,
 154                                            OPL3_HW_AUTO, 1,
 155                                            &opl3)) < 0) {
 156                         snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx\n", chip->port + 8);
 157                 }
 158         } else {
 159                 if ((err = snd_opl3_create(card, chip->port, chip->port + 2,
 160                                            OPL3_HW_AUTO, 1,
 161                                            &opl3)) < 0) {
 162                         snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx-0x%lx\n",
 163                                    chip->port, chip->port + 2);
 164                 }
 165         }
 166         if (err >= 0) {
 167                 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0)
 168                         goto _err;
 169         }
 170
 171         if ((err = snd_sb8dsp_midi(chip, 0, NULL)) < 0)
 172                 goto _err;
 173
 174         strcpy(card->driver, chip->hardware == SB_HW_PRO ? "SB Pro" : "SB8");
 175         strcpy(card->shortname, chip->name);
 176         sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
 177                 chip->name,
 178                 chip->port,
 179                 irq[dev], dma8[dev]);
 180
 181         snd_card_set_dev(card, &pdev->dev);
 182
 183         if ((err = snd_card_register(card)) < 0)
 184                 goto _err;
 185
 186         platform_set_drvdata(pdev, card);
 187         return 0;
 188
 189  _err:
 190         snd_card_free(card);
 191         return err;
 192 }
 193
 194 static int snd_sb8_remove(struct platform_device *pdev)
 195 {
 196         snd_card_free(platform_get_drvdata(pdev));
 197         platform_set_drvdata(pdev, NULL);
 198         return 0;
 199 }
 200
 201 #ifdef CONFIG_PM
 202 static int snd_sb8_suspend(struct platform_device *dev, pm_message_t state)
 203 {
 204         struct snd_card *card = platform_get_drvdata(dev);
 205         struct snd_sb8 *acard = card->private_data;
 206         struct snd_sb *chip = acard->chip;
 207
 208         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 209         snd_pcm_suspend_all(chip->pcm);
 210         snd_sbmixer_suspend(chip);
 211         return 0;
 212 }
 213
 214 static int snd_sb8_resume(struct platform_device *dev)
 215 {
 216         struct snd_card *card = platform_get_drvdata(dev);
 217         struct snd_sb8 *acard = card->private_data;
 218         struct snd_sb *chip = acard->chip;
 219
 220         snd_sbdsp_reset(chip);
 221         snd_sbmixer_resume(chip);
 222         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
 223         return 0;
 224 }
 225 #endif
 226
 227 #define SND_SB8_DRIVER  "snd_sb8"
 228
 229 static struct platform_driver snd_sb8_driver = {
 230         .probe          = snd_sb8_probe,
 231         .remove         = snd_sb8_remove,
 232 #ifdef CONFIG_PM
 233         .suspend        = snd_sb8_suspend,
 234         .resume         = snd_sb8_resume,
 235 #endif
 236         .driver         = {
 237                 .name   = SND_SB8_DRIVER
 238         },
 239 };
 240
 241 static int __init alsa_card_sb8_init(void)
 242 {
 243         int i, cards, err;
 244
 245         err = platform_driver_register(&snd_sb8_driver);
 246         if (err < 0)
 247                 return err;
 248
 249         cards = 0;
 250         for (i = 0; i < SNDRV_CARDS && enable[i]; i++) {
 251                 struct platform_device *device;
 252                 device = platform_device_register_simple(SND_SB8_DRIVER,
 253                                                          i, NULL, 0);
 254                 if (IS_ERR(device)) {
 255                         err = PTR_ERR(device);
 256                         goto errout;
 257                 }
 258                 cards++;
 259         }
 260         if (!cards) {
 261 #ifdef MODULE
 262                 snd_printk(KERN_ERR "Sound Blaster soundcard not found or device busy\n");
 263 #endif
 264                 err = -ENODEV;
 265                 goto errout;
 266         }
 267         return 0;
 268
 269  errout:
 270         platform_driver_unregister(&snd_sb8_driver);
 271         return err;
 272 }
 273
 274 static void __exit alsa_card_sb8_exit(void)
 275 {
 276         platform_driver_unregister(&snd_sb8_driver);
 277 }
 278
 279 module_init(alsa_card_sb8_init)
 280 module_exit(alsa_card_sb8_exit)