sound/isa/cs423x/cs4231.c

   1 /*
   2  *  Generic driver for CS4231 chips
   3  *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
   4  *  Originally the CS4232/CS4232A driver, modified for use on CS4231 by
   5  *  Tugrul Galatali <galatalt@stuy.edu>
   6  *
   7  *   This program is free software; you can redistribute it and/or modify
   8  *   it under the terms of the GNU General Public License as published by
   9  *   the Free Software Foundation; either version 2 of the License, or
  10  *   (at your option) any later version.
  11  *
  12  *   This program is distributed in the hope that it will be useful,
  13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *   GNU General Public License for more details.
  16  *
  17  *   You should have received a copy of the GNU General Public License
  18  *   along with this program; if not, write to the Free Software
  19  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  20  *
  21  */
  22
  23 #include <sound/driver.h>
  24 #include <linux/init.h>
  25 #include <linux/time.h>
  26 #include <linux/wait.h>
  27 #include <linux/moduleparam.h>
  28 #include <sound/core.h>
  29 #include <sound/cs4231.h>
  30 #include <sound/mpu401.h>
  31 #include <sound/initval.h>
  32
  33 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
  34 MODULE_DESCRIPTION("Generic CS4231");
  35 MODULE_LICENSE("GPL");
  36 MODULE_SUPPORTED_DEVICE("{{Crystal Semiconductors,CS4231}}");
  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;  /* Enable this card */
  41 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* PnP setup */
  42 static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */
  43 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 5,7,9,11,12,15 */
  44 static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;    /* 9,11,12,15 */
  45 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 0,1,3,5,6,7 */
  46 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 0,1,3,5,6,7 */
  47 static int boot_devs;
  48
  49 module_param_array(index, int, boot_devs, 0444);
  50 MODULE_PARM_DESC(index, "Index value for CS4231 soundcard.");
  51 module_param_array(id, charp, boot_devs, 0444);
  52 MODULE_PARM_DESC(id, "ID string for CS4231 soundcard.");
  53 module_param_array(enable, bool, boot_devs, 0444);
  54 MODULE_PARM_DESC(enable, "Enable CS4231 soundcard.");
  55 module_param_array(port, long, boot_devs, 0444);
  56 MODULE_PARM_DESC(port, "Port # for CS4231 driver.");
  57 module_param_array(mpu_port, long, boot_devs, 0444);
  58 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for CS4231 driver.");
  59 module_param_array(irq, int, boot_devs, 0444);
  60 MODULE_PARM_DESC(irq, "IRQ # for CS4231 driver.");
  61 module_param_array(mpu_irq, int, boot_devs, 0444);
  62 MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for CS4231 driver.");
  63 module_param_array(dma1, int, boot_devs, 0444);
  64 MODULE_PARM_DESC(dma1, "DMA1 # for CS4231 driver.");
  65 module_param_array(dma2, int, boot_devs, 0444);
  66 MODULE_PARM_DESC(dma2, "DMA2 # for CS4231 driver.");
  67
  68 static snd_card_t *snd_cs4231_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
  69
  70
  71 static int __init snd_card_cs4231_probe(int dev)
  72 {
  73         snd_card_t *card;
  74         struct snd_card_cs4231 *acard;
  75         snd_pcm_t *pcm = NULL;
  76         cs4231_t *chip;
  77         int err;
  78
  79         if (port[dev] == SNDRV_AUTO_PORT) {
  80                 snd_printk("specify port\n");
  81                 return -EINVAL;
  82         }
  83         if (irq[dev] == SNDRV_AUTO_IRQ) {
  84                 snd_printk("specify irq\n");
  85                 return -EINVAL;
  86         }
  87         if (dma1[dev] == SNDRV_AUTO_DMA) {
  88                 snd_printk("specify dma1\n");
  89                 return -EINVAL;
  90         }
  91         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
  92         if (card == NULL)
  93                 return -ENOMEM;
  94         acard = (struct snd_card_cs4231 *)card->private_data;
  95         if ((err = snd_cs4231_create(card, port[dev], -1,
  96                                      irq[dev],
  97                                      dma1[dev],
  98                                      dma2[dev],
  99                                      CS4231_HW_DETECT,
 100                                      0, &chip)) < 0) {
 101                 snd_card_free(card);
 102                 return err;
 103         }
 104
 105         if ((err = snd_cs4231_pcm(chip, 0, &pcm)) < 0) {
 106                 snd_card_free(card);
 107                 return err;
 108         }
 109
 110         strcpy(card->driver, "CS4231");
 111         strcpy(card->shortname, pcm->name);
 112         sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
 113                 pcm->name, chip->port, irq[dev], dma1[dev]);
 114         if (dma2[dev] >= 0)
 115                 sprintf(card->longname + strlen(card->longname), "&%d", dma2[dev]);
 116
 117         if ((err = snd_cs4231_mixer(chip)) < 0) {
 118                 snd_card_free(card);
 119                 return err;
 120         }
 121         if ((err = snd_cs4231_timer(chip, 0, NULL)) < 0) {
 122                 snd_card_free(card);
 123                 return err;
 124         }
 125
 126         if (mpu_port[dev] > 0 && mpu_port[dev] != SNDRV_AUTO_PORT) {
 127                 if (mpu_irq[dev] == SNDRV_AUTO_IRQ)
 128                         mpu_irq[dev] = -1;
 129                 if (snd_mpu401_uart_new(card, 0, MPU401_HW_CS4232,
 130                                         mpu_port[dev], 0,
 131                                         mpu_irq[dev],
 132                                         mpu_irq[dev] >= 0 ? SA_INTERRUPT : 0,
 133                                         NULL) < 0)
 134                         printk(KERN_ERR "cs4231: MPU401 not detected\n");
 135         }
 136         if ((err = snd_card_register(card)) < 0) {
 137                 snd_card_free(card);
 138                 return err;
 139         }
 140         snd_cs4231_cards[dev] = card;
 141         return 0;
 142 }
 143
 144 static int __init alsa_card_cs4231_init(void)
 145 {
 146         int dev, cards;
 147
 148         for (dev = cards = 0; dev < SNDRV_CARDS && enable[dev]; dev++) {
 149                 if (snd_card_cs4231_probe(dev) >= 0)
 150                         cards++;
 151         }
 152         if (!cards) {
 153 #ifdef MODULE
 154                 printk(KERN_ERR "CS4231 soundcard not found or device busy\n");
 155 #endif
 156                 return -ENODEV;
 157         }
 158         return 0;
 159 }
 160
 161 static void __exit alsa_card_cs4231_exit(void)
 162 {
 163         int idx;
 164
 165         for (idx = 0; idx < SNDRV_CARDS; idx++)
 166                 snd_card_free(snd_cs4231_cards[idx]);
 167 }
 168
 169 module_init(alsa_card_cs4231_init)
 170 module_exit(alsa_card_cs4231_exit)