release/src-rt-6.x/linux/linux-2.6/sound/isa/es1688/es1688.c

   1 /*
   2  *  Driver for generic ESS AudioDrive ESx688 soundcards
   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/isa.h>
  26 #include <linux/time.h>
  27 #include <linux/wait.h>
  28 #include <linux/moduleparam.h>
  29 #include <asm/dma.h>
  30 #include <sound/core.h>
  31 #include <sound/es1688.h>
  32 #include <sound/mpu401.h>
  33 #include <sound/opl3.h>
  34 #define SNDRV_LEGACY_FIND_FREE_IRQ
  35 #define SNDRV_LEGACY_FIND_FREE_DMA
  36 #include <sound/initval.h>
  37
  38 #define CRD_NAME "Generic ESS ES1688/ES688 AudioDrive"
  39 #define DEV_NAME "es1688"
  40
  41 MODULE_DESCRIPTION(CRD_NAME);
  42 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
  43 MODULE_LICENSE("GPL");
  44 MODULE_SUPPORTED_DEVICE("{{ESS,ES688 PnP AudioDrive,pnp:ESS0100},"
  45                 "{ESS,ES1688 PnP AudioDrive,pnp:ESS0102},"
  46                 "{ESS,ES688 AudioDrive,pnp:ESS6881},"
  47                 "{ESS,ES1688 AudioDrive,pnp:ESS1681}}");
  48
  49 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  50 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  51 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;  /* Enable this card */
  52 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* 0x220,0x240,0x260 */
  53 static long mpu_port[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
  54 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 5,7,9,10 */
  55 static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;    /* 5,7,9,10 */
  56 static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 0,1,3 */
  57
  58 module_param_array(index, int, NULL, 0444);
  59 MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
  60 module_param_array(id, charp, NULL, 0444);
  61 MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
  62 module_param_array(enable, bool, NULL, 0444);
  63 MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
  64 module_param_array(port, long, NULL, 0444);
  65 MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
  66 module_param_array(mpu_port, long, NULL, 0444);
  67 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " CRD_NAME " driver.");
  68 module_param_array(irq, int, NULL, 0444);
  69 MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
  70 module_param_array(mpu_irq, int, NULL, 0444);
  71 MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " CRD_NAME " driver.");
  72 module_param_array(dma8, int, NULL, 0444);
  73 MODULE_PARM_DESC(dma8, "8-bit DMA # for " CRD_NAME " driver.");
  74
  75 static int __devinit snd_es1688_match(struct device *dev, unsigned int n)
  76 {
  77         return enable[n];
  78 }
  79
  80 static int __devinit snd_es1688_legacy_create(struct snd_card *card,
  81                 struct device *dev, unsigned int n, struct snd_es1688 **rchip)
  82 {
  83         static long possible_ports[] = {0x220, 0x240, 0x260};
  84         static int possible_irqs[] = {5, 9, 10, 7, -1};
  85         static int possible_dmas[] = {1, 3, 0, -1};
  86
  87         int i, error;
  88
  89         if (irq[n] == SNDRV_AUTO_IRQ) {
  90                 irq[n] = snd_legacy_find_free_irq(possible_irqs);
  91                 if (irq[n] < 0) {
  92                         snd_printk(KERN_ERR "%s: unable to find a free IRQ\n",
  93                                 dev->bus_id);
  94                         return -EBUSY;
  95                 }
  96         }
  97         if (dma8[n] == SNDRV_AUTO_DMA) {
  98                 dma8[n] = snd_legacy_find_free_dma(possible_dmas);
  99                 if (dma8[n] < 0) {
 100                         snd_printk(KERN_ERR "%s: unable to find a free DMA\n",
 101                                 dev->bus_id);
 102                         return -EBUSY;
 103                 }
 104         }
 105
 106         if (port[n] != SNDRV_AUTO_PORT)
 107                 return snd_es1688_create(card, port[n], mpu_port[n], irq[n],
 108                                 mpu_irq[n], dma8[n], ES1688_HW_AUTO, rchip);
 109
 110         i = 0;
 111         do {
 112                 port[n] = possible_ports[i];
 113                 error = snd_es1688_create(card, port[n], mpu_port[n], irq[n],
 114                                 mpu_irq[n], dma8[n], ES1688_HW_AUTO, rchip);
 115         } while (error < 0 && ++i < ARRAY_SIZE(possible_ports));
 116
 117         return error;
 118 }
 119
 120 static int __devinit snd_es1688_probe(struct device *dev, unsigned int n)
 121 {
 122         struct snd_card *card;
 123         struct snd_es1688 *chip;
 124         struct snd_opl3 *opl3;
 125         struct snd_pcm *pcm;
 126         int error;
 127
 128         card = snd_card_new(index[n], id[n], THIS_MODULE, 0);
 129         if (!card)
 130                 return -EINVAL;
 131
 132         error = snd_es1688_legacy_create(card, dev, n, &chip);
 133         if (error < 0)
 134                 goto out;
 135
 136         error = snd_es1688_pcm(chip, 0, &pcm);
 137         if (error < 0)
 138                 goto out;
 139
 140         error = snd_es1688_mixer(chip);
 141         if (error < 0)
 142                 goto out;
 143
 144         strcpy(card->driver, "ES1688");
 145         strcpy(card->shortname, pcm->name);
 146         sprintf(card->longname, "%s at 0x%lx, irq %i, dma %i", pcm->name,
 147                 chip->port, chip->irq, chip->dma8);
 148
 149         if (snd_opl3_create(card, chip->port, chip->port + 2,
 150                         OPL3_HW_OPL3, 0, &opl3) < 0)
 151                 printk(KERN_WARNING "%s: opl3 not detected at 0x%lx\n",
 152                         dev->bus_id, chip->port);
 153         else {
 154                 error = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
 155                 if (error < 0)
 156                         goto out;
 157         }
 158
 159         if (mpu_irq[n] >= 0 && mpu_irq[n] != SNDRV_AUTO_IRQ &&
 160                         chip->mpu_port > 0) {
 161                 error = snd_mpu401_uart_new(card, 0, MPU401_HW_ES1688,
 162                                 chip->mpu_port, 0,
 163                                 mpu_irq[n], IRQF_DISABLED, NULL);
 164                 if (error < 0)
 165                         goto out;
 166         }
 167
 168         snd_card_set_dev(card, dev);
 169
 170         error = snd_card_register(card);
 171         if (error < 0)
 172                 goto out;
 173
 174         dev_set_drvdata(dev, card);
 175         return 0;
 176
 177 out:    snd_card_free(card);
 178         return error;
 179 }
 180
 181 static int __devexit snd_es1688_remove(struct device *dev, unsigned int n)
 182 {
 183         snd_card_free(dev_get_drvdata(dev));
 184         dev_set_drvdata(dev, NULL);
 185         return 0;
 186 }
 187
 188 static struct isa_driver snd_es1688_driver = {
 189         .match          = snd_es1688_match,
 190         .probe          = snd_es1688_probe,
 191         .remove         = snd_es1688_remove,
 192 #if 0   /* FIXME */
 193         .suspend        = snd_es1688_suspend,
 194         .resume         = snd_es1688_resume,
 195 #endif
 196         .driver         = {
 197                 .name   = DEV_NAME
 198         }
 199 };
 200
 201 static int __init alsa_card_es1688_init(void)
 202 {
 203         return isa_register_driver(&snd_es1688_driver, SNDRV_CARDS);
 204 }
 205
 206 static void __exit alsa_card_es1688_exit(void)
 207 {
 208         isa_unregister_driver(&snd_es1688_driver);
 209 }
 210
 211 module_init(alsa_card_es1688_init);
 212 module_exit(alsa_card_es1688_exit);