release/src-rt-6.x/linux/linux-2.6/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
  46 module_param_array(index, int, NULL, 0444);
  47 MODULE_PARM_DESC(index, "Index value for es968 based soundcard.");
  48 module_param_array(id, charp, NULL, 0444);
  49 MODULE_PARM_DESC(id, "ID string for es968 based soundcard.");
  50 module_param_array(enable, bool, NULL, 0444);
  51 MODULE_PARM_DESC(enable, "Enable es968 based soundcard.");
  52 module_param_array(port, long, NULL, 0444);
  53 MODULE_PARM_DESC(port, "Port # for es968 driver.");
  54 module_param_array(irq, int, NULL, 0444);
  55 MODULE_PARM_DESC(irq, "IRQ # for es968 driver.");
  56 module_param_array(dma8, int, NULL, 0444);
  57 MODULE_PARM_DESC(dma8, "8-bit DMA # for es968 driver.");
  58
  59 struct snd_card_es968 {
  60         struct pnp_dev *dev;
  61         struct snd_sb *chip;
  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 {
  75         struct snd_sb *chip = dev_id;
  76
  77         if (chip->open & SB_OPEN_PCM) {
  78                 return snd_sb8dsp_interrupt(chip);
  79         } else {
  80                 return snd_sb8dsp_midi_interrupt(chip);
  81         }
  82 }
  83
  84 static int __devinit snd_card_es968_pnp(int dev, struct snd_card_es968 *acard,
  85                                         struct pnp_card_link *card,
  86                                         const struct pnp_card_device_id *id)
  87 {
  88         struct pnp_dev *pdev;
  89         struct pnp_resource_table *cfg = kmalloc(sizeof(*cfg), GFP_KERNEL);
  90         int err;
  91         if (!cfg)
  92                 return -ENOMEM;
  93         acard->dev = pnp_request_card_device(card, id->devs[0].id, NULL);
  94         if (acard->dev == NULL) {
  95                 kfree(cfg);
  96                 return -ENODEV;
  97         }
  98
  99         pdev = acard->dev;
 100
 101         pnp_init_resource_table(cfg);
 102
 103         /* override resources */
 104         if (port[dev] != SNDRV_AUTO_PORT)
 105                 pnp_resource_change(&cfg->port_resource[0], port[dev], 16);
 106         if (dma8[dev] != SNDRV_AUTO_DMA)
 107                 pnp_resource_change(&cfg->dma_resource[0], dma8[dev], 1);
 108         if (irq[dev] != SNDRV_AUTO_IRQ)
 109                 pnp_resource_change(&cfg->irq_resource[0], irq[dev], 1);
 110         if ((pnp_manual_config_dev(pdev, cfg, 0)) < 0)
 111                 snd_printk(KERN_ERR PFX "AUDIO the requested resources are invalid, using auto config\n");
 112         err = pnp_activate_dev(pdev);
 113         if (err < 0) {
 114                 snd_printk(KERN_ERR PFX "AUDIO pnp configure failure\n");
 115                 kfree(cfg);
 116                 return err;
 117         }
 118         port[dev] = pnp_port_start(pdev, 0);
 119         dma8[dev] = pnp_dma(pdev, 1);
 120         irq[dev] = pnp_irq(pdev, 0);
 121
 122         kfree(cfg);
 123         return 0;
 124 }
 125
 126 static int __devinit snd_card_es968_probe(int dev,
 127                                         struct pnp_card_link *pcard,
 128                                         const struct pnp_card_device_id *pid)
 129 {
 130         int error;
 131         struct snd_sb *chip;
 132         struct snd_card *card;
 133         struct snd_card_es968 *acard;
 134
 135         if ((card = snd_card_new(index[dev], id[dev], THIS_MODULE,
 136                                  sizeof(struct snd_card_es968))) == NULL)
 137                 return -ENOMEM;
 138         acard = card->private_data;
 139         if ((error = snd_card_es968_pnp(dev, acard, pcard, pid))) {
 140                 snd_card_free(card);
 141                 return error;
 142         }
 143         snd_card_set_dev(card, &pcard->card->dev);
 144
 145         if ((error = snd_sbdsp_create(card, port[dev],
 146                                       irq[dev],
 147                                       snd_card_es968_interrupt,
 148                                       dma8[dev],
 149                                       -1,
 150                                       SB_HW_AUTO, &chip)) < 0) {
 151                 snd_card_free(card);
 152                 return error;
 153         }
 154         acard->chip = chip;
 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 unsigned int __devinitdata es968_devices;
 185
 186 static int __devinit snd_es968_pnp_detect(struct pnp_card_link *card,
 187                                           const struct pnp_card_device_id *id)
 188 {
 189         static int dev;
 190         int res;
 191
 192         for ( ; dev < SNDRV_CARDS; dev++) {
 193                 if (!enable[dev])
 194                         continue;
 195                 res = snd_card_es968_probe(dev, card, id);
 196                 if (res < 0)
 197                         return res;
 198                 dev++;
 199                 es968_devices++;
 200                 return 0;
 201         }
 202         return -ENODEV;
 203 }
 204
 205 static void __devexit snd_es968_pnp_remove(struct pnp_card_link * pcard)
 206 {
 207         snd_card_free(pnp_get_card_drvdata(pcard));
 208         pnp_set_card_drvdata(pcard, NULL);
 209 }
 210
 211 #ifdef CONFIG_PM
 212 static int snd_es968_pnp_suspend(struct pnp_card_link *pcard, pm_message_t state)
 213 {
 214         struct snd_card *card = pnp_get_card_drvdata(pcard);
 215         struct snd_card_es968 *acard = card->private_data;
 216         struct snd_sb *chip = acard->chip;
 217
 218         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 219         snd_pcm_suspend_all(chip->pcm);
 220         snd_sbmixer_suspend(chip);
 221         return 0;
 222 }
 223
 224 static int snd_es968_pnp_resume(struct pnp_card_link *pcard)
 225 {
 226         struct snd_card *card = pnp_get_card_drvdata(pcard);
 227         struct snd_card_es968 *acard = card->private_data;
 228         struct snd_sb *chip = acard->chip;
 229
 230         snd_sbdsp_reset(chip);
 231         snd_sbmixer_resume(chip);
 232         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
 233         return 0;
 234 }
 235 #endif
 236
 237 static struct pnp_card_driver es968_pnpc_driver = {
 238         .flags          = PNP_DRIVER_RES_DISABLE,
 239         .name           = "es968",
 240         .id_table       = snd_es968_pnpids,
 241         .probe          = snd_es968_pnp_detect,
 242         .remove         = __devexit_p(snd_es968_pnp_remove),
 243 #ifdef CONFIG_PM
 244         .suspend        = snd_es968_pnp_suspend,
 245         .resume         = snd_es968_pnp_resume,
 246 #endif
 247 };
 248
 249 static int __init alsa_card_es968_init(void)
 250 {
 251         int err = pnp_register_card_driver(&es968_pnpc_driver);
 252         if (err)
 253                 return err;
 254
 255         if (!es968_devices) {
 256                 pnp_unregister_card_driver(&es968_pnpc_driver);
 257 #ifdef MODULE
 258                 snd_printk(KERN_ERR "no ES968 based soundcards found\n");
 259 #endif
 260                 return -ENODEV;
 261         }
 262         return 0;
 263 }
 264
 265 static void __exit alsa_card_es968_exit(void)
 266 {
 267         pnp_unregister_card_driver(&es968_pnpc_driver);
 268 }
 269
 270 module_init(alsa_card_es968_init)
 271 module_exit(alsa_card_es968_exit)