sound/isa/sb/es968.c

   1
   2 /*
   3     card-es968.c - driver for ESS AudioDrive ES968 based soundcards.
   4     Copyright (C) 1999 by Massimo Piccioni <dafastidio@libero.it>
   5
   6     Thanks to Pierfrancesco 'qM2' Passerini.
   7
   8     This program is free software; you can redistribute it and/or modify
   9     it under the terms of the GNU General Public License as published by
  10     the Free Software Foundation; either version 2 of the License, or
  11     (at your option) any later version.
  12
  13     This program is distributed in the hope that it will be useful,
  14     but WITHOUT ANY WARRANTY; without even the implied warranty of
  15     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16     GNU General Public License for more details.
  17
  18     You should have received a copy of the GNU General Public License
  19     along with this program; if not, write to the Free Software
  20     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  21 */
  22
  23 #include <sound/driver.h>
  24 #include <linux/init.h>
  25 #include <linux/time.h>
  26 #include <linux/pnp.h>
  27 #include <linux/moduleparam.h>
  28 #include <sound/core.h>
  29 #include <sound/initval.h>
  30 #include <sound/sb.h>
  31
  32 #define PFX "es968: "
  33
  34 MODULE_AUTHOR("Massimo Piccioni <dafastidio@libero.it>");
  35 MODULE_DESCRIPTION("ESS AudioDrive ES968");
  36 MODULE_LICENSE("GPL");
  37 MODULE_SUPPORTED_DEVICE("{{ESS,AudioDrive ES968}}");
  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_ISAPNP; /* Enable this card */
  42 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* PnP setup */
  43 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* Pnp setup */
  44 static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* PnP setup */
  45 static int boot_devs;
  46
  47 module_param_array(index, int, boot_devs, 0444);
  48 MODULE_PARM_DESC(index, "Index value for es968 based soundcard.");
  49 module_param_array(id, charp, boot_devs, 0444);
  50 MODULE_PARM_DESC(id, "ID string for es968 based soundcard.");
  51 module_param_array(enable, bool, boot_devs, 0444);
  52 MODULE_PARM_DESC(enable, "Enable es968 based soundcard.");
  53 module_param_array(port, long, boot_devs, 0444);
  54 MODULE_PARM_DESC(port, "Port # for es968 driver.");
  55 module_param_array(irq, int, boot_devs, 0444);
  56 MODULE_PARM_DESC(irq, "IRQ # for es968 driver.");
  57 module_param_array(dma8, int, boot_devs, 0444);
  58 MODULE_PARM_DESC(dma8, "8-bit DMA # for es968 driver.");
  59
  60 struct snd_card_es968 {
  61         struct pnp_dev *dev;
  62 };
  63
  64 static struct pnp_card_device_id snd_es968_pnpids[] = {
  65         { .id = "ESS0968", .devs = { { "@@@0968" }, } },
  66         { .id = "", } /* end */
  67 };
  68
  69 MODULE_DEVICE_TABLE(pnp_card, snd_es968_pnpids);
  70
  71 #define DRIVER_NAME     "snd-card-es968"
  72
  73 static irqreturn_t snd_card_es968_interrupt(int irq, void *dev_id,
  74                                             struct pt_regs *regs)
  75 {
  76         sb_t *chip = dev_id;
  77
  78         if (chip->open & SB_OPEN_PCM) {
  79                 return snd_sb8dsp_interrupt(chip);
  80         } else {
  81                 return snd_sb8dsp_midi_interrupt(chip);
  82         }
  83 }
  84
  85 static int __devinit snd_card_es968_pnp(int dev, struct snd_card_es968 *acard,
  86                                         struct pnp_card_link *card,
  87                                         const struct pnp_card_device_id *id)
  88 {
  89         struct pnp_dev *pdev;
  90         struct pnp_resource_table *cfg = kmalloc(sizeof(*cfg), GFP_KERNEL);
  91         int err;
  92         if (!cfg)
  93                 return -ENOMEM;
  94         acard->dev = pnp_request_card_device(card, id->devs[0].id, NULL);
  95         if (acard->dev == NULL) {
  96                 kfree(cfg);
  97                 return -ENODEV;
  98         }
  99
 100         pdev = acard->dev;
 101
 102         pnp_init_resource_table(cfg);
 103
 104         /* override resources */
 105         if (port[dev] != SNDRV_AUTO_PORT)
 106                 pnp_resource_change(&cfg->port_resource[0], port[dev], 16);
 107         if (dma8[dev] != SNDRV_AUTO_DMA)
 108                 pnp_resource_change(&cfg->dma_resource[0], dma8[dev], 1);
 109         if (irq[dev] != SNDRV_AUTO_IRQ)
 110                 pnp_resource_change(&cfg->irq_resource[0], irq[dev], 1);
 111         if ((pnp_manual_config_dev(pdev, cfg, 0)) < 0)
 112                 snd_printk(KERN_ERR PFX "AUDIO the requested resources are invalid, using auto config\n");
 113         err = pnp_activate_dev(pdev);
 114         if (err < 0) {
 115                 snd_printk(KERN_ERR PFX "AUDIO pnp configure failure\n");
 116                 kfree(cfg);
 117                 return err;
 118         }
 119         port[dev] = pnp_port_start(pdev, 0);
 120         dma8[dev] = pnp_dma(pdev, 1);
 121         irq[dev] = pnp_irq(pdev, 0);
 122
 123         kfree(cfg);
 124         return 0;
 125 }
 126
 127 static int __init snd_card_es968_probe(int dev,
 128                                         struct pnp_card_link *pcard,
 129                                         const struct pnp_card_device_id *pid)
 130 {
 131         int error;
 132         sb_t *chip;
 133         snd_card_t *card;
 134         struct snd_card_es968 *acard;
 135
 136         if ((card = snd_card_new(index[dev], id[dev], THIS_MODULE,
 137                                  sizeof(struct snd_card_es968))) == NULL)
 138                 return -ENOMEM;
 139         acard = (struct snd_card_es968 *)card->private_data;
 140         if ((error = snd_card_es968_pnp(dev, acard, pcard, pid))) {
 141                 snd_card_free(card);
 142                 return error;
 143         }
 144         snd_card_set_dev(card, &pcard->card->dev);
 145
 146         if ((error = snd_sbdsp_create(card, port[dev],
 147                                       irq[dev],
 148                                       snd_card_es968_interrupt,
 149                                       dma8[dev],
 150                                       -1,
 151                                       SB_HW_AUTO, &chip)) < 0) {
 152                 snd_card_free(card);
 153                 return error;
 154         }
 155
 156         if ((error = snd_sb8dsp_pcm(chip, 0, NULL)) < 0) {
 157                 snd_card_free(card);
 158                 return error;
 159         }
 160
 161         if ((error = snd_sbmixer_new(chip)) < 0) {
 162                 snd_card_free(card);
 163                 return error;
 164         }
 165
 166         if ((error = snd_sb8dsp_midi(chip, 0, NULL)) < 0) {
 167                 snd_card_free(card);
 168                 return error;
 169         }
 170
 171         strcpy(card->driver, "ES968");
 172         strcpy(card->shortname, "ESS ES968");
 173         sprintf(card->longname, "%s soundcard, %s at 0x%lx, irq %d, dma %d",
 174                 card->shortname, chip->name, chip->port, irq[dev], dma8[dev]);
 175
 176         if ((error = snd_card_register(card)) < 0) {
 177                 snd_card_free(card);
 178                 return error;
 179         }
 180         pnp_set_card_drvdata(pcard, card);
 181         return 0;
 182 }
 183
 184 static int __devinit snd_es968_pnp_detect(struct pnp_card_link *card,
 185                                           const struct pnp_card_device_id *id)
 186 {
 187         static int dev;
 188         int res;
 189
 190         for ( ; dev < SNDRV_CARDS; dev++) {
 191                 if (!enable[dev])
 192                         continue;
 193                 res = snd_card_es968_probe(dev, card, id);
 194                 if (res < 0)
 195                         return res;
 196                 dev++;
 197                 return 0;
 198         }
 199         return -ENODEV;
 200 }
 201
 202 static void __devexit snd_es968_pnp_remove(struct pnp_card_link * pcard)
 203 {
 204         snd_card_t *card = (snd_card_t *) pnp_get_card_drvdata(pcard);
 205
 206         snd_card_disconnect(card);
 207         snd_card_free_in_thread(card);
 208 }
 209
 210 static struct pnp_card_driver es968_pnpc_driver = {
 211         .flags          = PNP_DRIVER_RES_DISABLE,
 212         .name           = "es968",
 213         .id_table       = snd_es968_pnpids,
 214         .probe          = snd_es968_pnp_detect,
 215         .remove         = __devexit_p(snd_es968_pnp_remove),
 216 };
 217
 218 static int __init alsa_card_es968_init(void)
 219 {
 220         int cards = pnp_register_card_driver(&es968_pnpc_driver);
 221 #ifdef MODULE
 222         if (cards == 0) {
 223                 pnp_unregister_card_driver(&es968_pnpc_driver);
 224                 snd_printk(KERN_ERR "no ES968 based soundcards found\n");
 225         }
 226 #endif
 227         return cards ? 0 : -ENODEV;
 228 }
 229
 230 static void __exit alsa_card_es968_exit(void)
 231 {
 232         pnp_unregister_card_driver(&es968_pnpc_driver);
 233 }
 234
 235 module_init(alsa_card_es968_init)
 236 module_exit(alsa_card_es968_exit)