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 <linux/init.h>
  24 #include <linux/time.h>
  25 #include <linux/pnp.h>
  26 #include <linux/moduleparam.h>
  27 #include <sound/core.h>
  28 #include <sound/initval.h>
  29 #include <sound/sb.h>
  30
  31 #define PFX "es968: "
  32
  33 MODULE_AUTHOR("Massimo Piccioni <dafastidio@libero.it>");
  34 MODULE_DESCRIPTION("ESS AudioDrive ES968");
  35 MODULE_LICENSE("GPL");
  36 MODULE_SUPPORTED_DEVICE("{{ESS,AudioDrive ES968}}");
  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_ISAPNP; /* Enable this card */
  41 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* PnP setup */
  42 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* Pnp setup */
  43 static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* PnP setup */
  44
  45 module_param_array(index, int, NULL, 0444);
  46 MODULE_PARM_DESC(index, "Index value for es968 based soundcard.");
  47 module_param_array(id, charp, NULL, 0444);
  48 MODULE_PARM_DESC(id, "ID string for es968 based soundcard.");
  49 module_param_array(enable, bool, NULL, 0444);
  50 MODULE_PARM_DESC(enable, "Enable es968 based soundcard.");
  51
  52 struct snd_card_es968 {
  53         struct pnp_dev *dev;
  54         struct snd_sb *chip;
  55 };
  56
  57 static struct pnp_card_device_id snd_es968_pnpids[] = {
  58         { .id = "ESS0968", .devs = { { "@@@0968" }, } },
  59         { .id = "", } /* end */
  60 };
  61
  62 MODULE_DEVICE_TABLE(pnp_card, snd_es968_pnpids);
  63
  64 #define DRIVER_NAME     "snd-card-es968"
  65
  66 static irqreturn_t snd_card_es968_interrupt(int irq, void *dev_id)
  67 {
  68         struct snd_sb *chip = dev_id;
  69
  70         if (chip->open & SB_OPEN_PCM) {
  71                 return snd_sb8dsp_interrupt(chip);
  72         } else {
  73                 return snd_sb8dsp_midi_interrupt(chip);
  74         }
  75 }
  76
  77 static int __devinit snd_card_es968_pnp(int dev, struct snd_card_es968 *acard,
  78                                         struct pnp_card_link *card,
  79                                         const struct pnp_card_device_id *id)
  80 {
  81         struct pnp_dev *pdev;
  82         int err;
  83
  84         acard->dev = pnp_request_card_device(card, id->devs[0].id, NULL);
  85         if (acard->dev == NULL)
  86                 return -ENODEV;
  87
  88         pdev = acard->dev;
  89
  90         err = pnp_activate_dev(pdev);
  91         if (err < 0) {
  92                 snd_printk(KERN_ERR PFX "AUDIO pnp configure failure\n");
  93                 return err;
  94         }
  95         port[dev] = pnp_port_start(pdev, 0);
  96         dma8[dev] = pnp_dma(pdev, 1);
  97         irq[dev] = pnp_irq(pdev, 0);
  98
  99         return 0;
 100 }
 101
 102 static int __devinit snd_card_es968_probe(int dev,
 103                                         struct pnp_card_link *pcard,
 104                                         const struct pnp_card_device_id *pid)
 105 {
 106         int error;
 107         struct snd_sb *chip;
 108         struct snd_card *card;
 109         struct snd_card_es968 *acard;
 110
 111         error = snd_card_create(index[dev], id[dev], THIS_MODULE,
 112                                 sizeof(struct snd_card_es968), &card);
 113         if (error < 0)
 114                 return error;
 115         acard = card->private_data;
 116         if ((error = snd_card_es968_pnp(dev, acard, pcard, pid))) {
 117                 snd_card_free(card);
 118                 return error;
 119         }
 120         snd_card_set_dev(card, &pcard->card->dev);
 121
 122         if ((error = snd_sbdsp_create(card, port[dev],
 123                                       irq[dev],
 124                                       snd_card_es968_interrupt,
 125                                       dma8[dev],
 126                                       -1,
 127                                       SB_HW_AUTO, &chip)) < 0) {
 128                 snd_card_free(card);
 129                 return error;
 130         }
 131         acard->chip = chip;
 132
 133         if ((error = snd_sb8dsp_pcm(chip, 0, NULL)) < 0) {
 134                 snd_card_free(card);
 135                 return error;
 136         }
 137
 138         if ((error = snd_sbmixer_new(chip)) < 0) {
 139                 snd_card_free(card);
 140                 return error;
 141         }
 142
 143         if ((error = snd_sb8dsp_midi(chip, 0, NULL)) < 0) {
 144                 snd_card_free(card);
 145                 return error;
 146         }
 147
 148         strcpy(card->driver, "ES968");
 149         strcpy(card->shortname, "ESS ES968");
 150         sprintf(card->longname, "%s soundcard, %s at 0x%lx, irq %d, dma %d",
 151                 card->shortname, chip->name, chip->port, irq[dev], dma8[dev]);
 152
 153         if ((error = snd_card_register(card)) < 0) {
 154                 snd_card_free(card);
 155                 return error;
 156         }
 157         pnp_set_card_drvdata(pcard, card);
 158         return 0;
 159 }
 160
 161 static unsigned int __devinitdata es968_devices;
 162
 163 static int __devinit snd_es968_pnp_detect(struct pnp_card_link *card,
 164                                           const struct pnp_card_device_id *id)
 165 {
 166         static int dev;
 167         int res;
 168
 169         for ( ; dev < SNDRV_CARDS; dev++) {
 170                 if (!enable[dev])
 171                         continue;
 172                 res = snd_card_es968_probe(dev, card, id);
 173                 if (res < 0)
 174                         return res;
 175                 dev++;
 176                 es968_devices++;
 177                 return 0;
 178         }
 179         return -ENODEV;
 180 }
 181
 182 static void __devexit snd_es968_pnp_remove(struct pnp_card_link * pcard)
 183 {
 184         snd_card_free(pnp_get_card_drvdata(pcard));
 185         pnp_set_card_drvdata(pcard, NULL);
 186 }
 187
 188 #ifdef CONFIG_PM
 189 static int snd_es968_pnp_suspend(struct pnp_card_link *pcard, pm_message_t state)
 190 {
 191         struct snd_card *card = pnp_get_card_drvdata(pcard);
 192         struct snd_card_es968 *acard = card->private_data;
 193         struct snd_sb *chip = acard->chip;
 194
 195         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 196         snd_pcm_suspend_all(chip->pcm);
 197         snd_sbmixer_suspend(chip);
 198         return 0;
 199 }
 200
 201 static int snd_es968_pnp_resume(struct pnp_card_link *pcard)
 202 {
 203         struct snd_card *card = pnp_get_card_drvdata(pcard);
 204         struct snd_card_es968 *acard = card->private_data;
 205         struct snd_sb *chip = acard->chip;
 206
 207         snd_sbdsp_reset(chip);
 208         snd_sbmixer_resume(chip);
 209         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
 210         return 0;
 211 }
 212 #endif
 213
 214 static struct pnp_card_driver es968_pnpc_driver = {
 215         .flags          = PNP_DRIVER_RES_DISABLE,
 216         .name           = "es968",
 217         .id_table       = snd_es968_pnpids,
 218         .probe          = snd_es968_pnp_detect,
 219         .remove         = __devexit_p(snd_es968_pnp_remove),
 220 #ifdef CONFIG_PM
 221         .suspend        = snd_es968_pnp_suspend,
 222         .resume         = snd_es968_pnp_resume,
 223 #endif
 224 };
 225
 226 static int __init alsa_card_es968_init(void)
 227 {
 228         int err = pnp_register_card_driver(&es968_pnpc_driver);
 229         if (err)
 230                 return err;
 231
 232         if (!es968_devices) {
 233                 pnp_unregister_card_driver(&es968_pnpc_driver);
 234 #ifdef MODULE
 235                 snd_printk(KERN_ERR "no ES968 based soundcards found\n");
 236 #endif
 237                 return -ENODEV;
 238         }
 239         return 0;
 240 }
 241
 242 static void __exit alsa_card_es968_exit(void)
 243 {
 244         pnp_unregister_card_driver(&es968_pnpc_driver);
 245 }
 246
 247 module_init(alsa_card_es968_init)
 248 module_exit(alsa_card_es968_exit)