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 <asm/dma.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/es1688.h>
  30 #include <sound/mpu401.h>
  31 #include <sound/opl3.h>
  32 #define SNDRV_LEGACY_AUTO_PROBE
  33 #define SNDRV_LEGACY_FIND_FREE_IRQ
  34 #define SNDRV_LEGACY_FIND_FREE_DMA
  35 #include <sound/initval.h>
  36
  37 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
  38 MODULE_DESCRIPTION("ESS ESx688 AudioDrive");
  39 MODULE_LICENSE("GPL");
  40 MODULE_SUPPORTED_DEVICE("{{ESS,ES688 PnP AudioDrive,pnp:ESS0100},"
  41                 "{ESS,ES1688 PnP AudioDrive,pnp:ESS0102},"
  42                 "{ESS,ES688 AudioDrive,pnp:ESS6881},"
  43                 "{ESS,ES1688 AudioDrive,pnp:ESS1681}}");
  44
  45 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  46 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  47 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;  /* Enable this card */
  48 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* 0x220,0x240,0x260 */
  49 static long mpu_port[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
  50 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 5,7,9,10 */
  51 static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;    /* 5,7,9,10 */
  52 static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 0,1,3 */
  53
  54 module_param_array(index, int, NULL, 0444);
  55 MODULE_PARM_DESC(index, "Index value for ESx688 soundcard.");
  56 module_param_array(id, charp, NULL, 0444);
  57 MODULE_PARM_DESC(id, "ID string for ESx688 soundcard.");
  58 module_param_array(enable, bool, NULL, 0444);
  59 MODULE_PARM_DESC(enable, "Enable ESx688 soundcard.");
  60 module_param_array(port, long, NULL, 0444);
  61 MODULE_PARM_DESC(port, "Port # for ESx688 driver.");
  62 module_param_array(mpu_port, long, NULL, 0444);
  63 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for ESx688 driver.");
  64 module_param_array(irq, int, NULL, 0444);
  65 MODULE_PARM_DESC(irq, "IRQ # for ESx688 driver.");
  66 module_param_array(mpu_irq, int, NULL, 0444);
  67 MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for ESx688 driver.");
  68 module_param_array(dma8, int, NULL, 0444);
  69 MODULE_PARM_DESC(dma8, "8-bit DMA # for ESx688 driver.");
  70
  71 static snd_card_t *snd_audiodrive_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
  72
  73
  74 static int __init snd_audiodrive_probe(int dev)
  75 {
  76         static int possible_irqs[] = {5, 9, 10, 7, -1};
  77         static int possible_dmas[] = {1, 3, 0, -1};
  78         int xirq, xdma, xmpu_irq;
  79         snd_card_t *card;
  80         es1688_t *chip;
  81         opl3_t *opl3;
  82         snd_pcm_t *pcm;
  83         int err;
  84
  85         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
  86         if (card == NULL)
  87                 return -ENOMEM;
  88
  89         xirq = irq[dev];
  90         if (xirq == SNDRV_AUTO_IRQ) {
  91                 if ((xirq = snd_legacy_find_free_irq(possible_irqs)) < 0) {
  92                         snd_card_free(card);
  93                         snd_printk("unable to find a free IRQ\n");
  94                         return -EBUSY;
  95                 }
  96         }
  97         xmpu_irq = mpu_irq[dev];
  98         xdma = dma8[dev];
  99         if (xdma == SNDRV_AUTO_DMA) {
 100                 if ((xdma = snd_legacy_find_free_dma(possible_dmas)) < 0) {
 101                         snd_card_free(card);
 102                         snd_printk("unable to find a free DMA\n");
 103                         return -EBUSY;
 104                 }
 105         }
 106
 107         if ((err = snd_es1688_create(card, port[dev], mpu_port[dev],
 108                                      xirq, xmpu_irq, xdma,
 109                                      ES1688_HW_AUTO, &chip)) < 0) {
 110                 snd_card_free(card);
 111                 return err;
 112         }
 113         if ((err = snd_es1688_pcm(chip, 0, &pcm)) < 0) {
 114                 snd_card_free(card);
 115                 return err;
 116         }
 117         if ((err = snd_es1688_mixer(chip)) < 0) {
 118                 snd_card_free(card);
 119                 return err;
 120         }
 121
 122         strcpy(card->driver, "ES1688");
 123         strcpy(card->shortname, pcm->name);
 124         sprintf(card->longname, "%s at 0x%lx, irq %i, dma %i", pcm->name, chip->port, xirq, xdma);
 125
 126         if ((snd_opl3_create(card, chip->port, chip->port + 2, OPL3_HW_OPL3, 0, &opl3)) < 0) {
 127                 printk(KERN_ERR "es1688: opl3 not detected at 0x%lx\n", chip->port);
 128         } else {
 129                 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
 130                         snd_card_free(card);
 131                         return err;
 132                 }
 133         }
 134
 135         if (xmpu_irq >= 0 && xmpu_irq != SNDRV_AUTO_IRQ && chip->mpu_port > 0) {
 136                 if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_ES1688,
 137                                                chip->mpu_port, 0,
 138                                                xmpu_irq,
 139                                                SA_INTERRUPT,
 140                                                NULL)) < 0) {
 141                         snd_card_free(card);
 142                         return err;
 143                 }
 144         }
 145         if ((err = snd_card_register(card)) < 0) {
 146                 snd_card_free(card);
 147                 return err;
 148         }
 149         snd_audiodrive_cards[dev] = card;
 150         return 0;
 151
 152 }
 153
 154 static int __init snd_audiodrive_legacy_auto_probe(unsigned long xport)
 155 {
 156         static int dev;
 157         int res;
 158
 159         for ( ; dev < SNDRV_CARDS; dev++) {
 160                 if (!enable[dev] || port[dev] != SNDRV_AUTO_PORT)
 161                         continue;
 162                 port[dev] = xport;
 163                 res = snd_audiodrive_probe(dev);
 164                 if (res < 0)
 165                         port[dev] = SNDRV_AUTO_PORT;
 166                 return res;
 167         }
 168         return -ENODEV;
 169 }
 170
 171 static int __init alsa_card_es1688_init(void)
 172 {
 173         static unsigned long possible_ports[] = {0x220, 0x240, 0x260, -1};
 174         int dev, cards = 0, i;
 175
 176         for (dev = cards = 0; dev < SNDRV_CARDS && enable[dev]; dev++) {
 177                 if (port[dev] == SNDRV_AUTO_PORT)
 178                         continue;
 179                 if (snd_audiodrive_probe(dev) >= 0)
 180                         cards++;
 181         }
 182         i = snd_legacy_auto_probe(possible_ports, snd_audiodrive_legacy_auto_probe);
 183         if (i > 0)
 184                 cards += i;
 185
 186         if (!cards) {
 187 #ifdef MODULE
 188                 printk(KERN_ERR "ESS AudioDrive ES1688 soundcard not found or device busy\n");
 189 #endif
 190                 return -ENODEV;
 191         }
 192         return 0;
 193 }
 194
 195 static void __exit alsa_card_es1688_exit(void)
 196 {
 197         int idx;
 198
 199         for (idx = 0; idx < SNDRV_CARDS; idx++)
 200                 snd_card_free(snd_audiodrive_cards[idx]);
 201 }
 202
 203 module_init(alsa_card_es1688_init)
 204 module_exit(alsa_card_es1688_exit)