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/platform_device.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 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
  39 MODULE_DESCRIPTION("ESS ESx688 AudioDrive");
  40 MODULE_LICENSE("GPL");
  41 MODULE_SUPPORTED_DEVICE("{{ESS,ES688 PnP AudioDrive,pnp:ESS0100},"
  42                 "{ESS,ES1688 PnP AudioDrive,pnp:ESS0102},"
  43                 "{ESS,ES688 AudioDrive,pnp:ESS6881},"
  44                 "{ESS,ES1688 AudioDrive,pnp:ESS1681}}");
  45
  46 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  47 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  48 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;  /* Enable this card */
  49 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* 0x220,0x240,0x260 */
  50 static long mpu_port[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
  51 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 5,7,9,10 */
  52 static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;    /* 5,7,9,10 */
  53 static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 0,1,3 */
  54
  55 module_param_array(index, int, NULL, 0444);
  56 MODULE_PARM_DESC(index, "Index value for ESx688 soundcard.");
  57 module_param_array(id, charp, NULL, 0444);
  58 MODULE_PARM_DESC(id, "ID string for ESx688 soundcard.");
  59 module_param_array(enable, bool, NULL, 0444);
  60 MODULE_PARM_DESC(enable, "Enable ESx688 soundcard.");
  61 module_param_array(port, long, NULL, 0444);
  62 MODULE_PARM_DESC(port, "Port # for ESx688 driver.");
  63 module_param_array(mpu_port, long, NULL, 0444);
  64 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for ESx688 driver.");
  65 module_param_array(irq, int, NULL, 0444);
  66 MODULE_PARM_DESC(irq, "IRQ # for ESx688 driver.");
  67 module_param_array(mpu_irq, int, NULL, 0444);
  68 MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for ESx688 driver.");
  69 module_param_array(dma8, int, NULL, 0444);
  70 MODULE_PARM_DESC(dma8, "8-bit DMA # for ESx688 driver.");
  71
  72 static struct platform_device *devices[SNDRV_CARDS];
  73
  74 #define PFX     "es1688: "
  75
  76 static int __init snd_es1688_probe(struct platform_device *pdev)
  77 {
  78         int dev = pdev->id;
  79         static int possible_irqs[] = {5, 9, 10, 7, -1};
  80         static int possible_dmas[] = {1, 3, 0, -1};
  81         int xirq, xdma, xmpu_irq;
  82         struct snd_card *card;
  83         struct snd_es1688 *chip;
  84         struct snd_opl3 *opl3;
  85         struct snd_pcm *pcm;
  86         int err;
  87
  88         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
  89         if (card == NULL)
  90                 return -ENOMEM;
  91
  92         xirq = irq[dev];
  93         if (xirq == SNDRV_AUTO_IRQ) {
  94                 if ((xirq = snd_legacy_find_free_irq(possible_irqs)) < 0) {
  95                         snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
  96                         err = -EBUSY;
  97                         goto _err;
  98                 }
  99         }
 100         xmpu_irq = mpu_irq[dev];
 101         xdma = dma8[dev];
 102         if (xdma == SNDRV_AUTO_DMA) {
 103                 if ((xdma = snd_legacy_find_free_dma(possible_dmas)) < 0) {
 104                         snd_printk(KERN_ERR PFX "unable to find a free DMA\n");
 105                         err = -EBUSY;
 106                         goto _err;
 107                 }
 108         }
 109
 110         if (port[dev] != SNDRV_AUTO_PORT) {
 111                 if ((err = snd_es1688_create(card, port[dev], mpu_port[dev],
 112                                              xirq, xmpu_irq, xdma,
 113                                              ES1688_HW_AUTO, &chip)) < 0)
 114                         goto _err;
 115         } else {
 116                 /* auto-probe legacy ports */
 117                 static unsigned long possible_ports[] = {
 118                         0x220, 0x240, 0x260,
 119                 };
 120                 int i;
 121                 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
 122                         err = snd_es1688_create(card, possible_ports[i],
 123                                                 mpu_port[dev],
 124                                                 xirq, xmpu_irq, xdma,
 125                                                 ES1688_HW_AUTO, &chip);
 126                         if (err >= 0) {
 127                                 port[dev] = possible_ports[i];
 128                                 break;
 129                         }
 130                 }
 131                 if (i >= ARRAY_SIZE(possible_ports))
 132                         goto _err;
 133         }
 134
 135         if ((err = snd_es1688_pcm(chip, 0, &pcm)) < 0)
 136                 goto _err;
 137
 138         if ((err = snd_es1688_mixer(chip)) < 0)
 139                 goto _err;
 140
 141         strcpy(card->driver, "ES1688");
 142         strcpy(card->shortname, pcm->name);
 143         sprintf(card->longname, "%s at 0x%lx, irq %i, dma %i", pcm->name, chip->port, xirq, xdma);
 144
 145         if ((snd_opl3_create(card, chip->port, chip->port + 2, OPL3_HW_OPL3, 0, &opl3)) < 0) {
 146                 printk(KERN_WARNING PFX "opl3 not detected at 0x%lx\n", chip->port);
 147         } else {
 148                 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0)
 149                         goto _err;
 150         }
 151
 152         if (xmpu_irq >= 0 && xmpu_irq != SNDRV_AUTO_IRQ && chip->mpu_port > 0) {
 153                 if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_ES1688,
 154                                                chip->mpu_port, 0,
 155                                                xmpu_irq,
 156                                                SA_INTERRUPT,
 157                                                NULL)) < 0)
 158                         goto _err;
 159         }
 160
 161         snd_card_set_dev(card, &pdev->dev);
 162
 163         if ((err = snd_card_register(card)) < 0)
 164                 goto _err;
 165
 166         platform_set_drvdata(pdev, card);
 167         return 0;
 168
 169  _err:
 170         snd_card_free(card);
 171         return err;
 172 }
 173
 174 static int snd_es1688_remove(struct platform_device *devptr)
 175 {
 176         snd_card_free(platform_get_drvdata(devptr));
 177         platform_set_drvdata(devptr, NULL);
 178         return 0;
 179 }
 180
 181 #define ES1688_DRIVER   "snd_es1688"
 182
 183 static struct platform_driver snd_es1688_driver = {
 184         .probe          = snd_es1688_probe,
 185         .remove         = snd_es1688_remove,
 186         /* FIXME: suspend/resume */
 187         .driver         = {
 188                 .name   = ES1688_DRIVER
 189         },
 190 };
 191
 192 static void __init_or_module snd_es1688_unregister_all(void)
 193 {
 194         int i;
 195
 196         for (i = 0; i < ARRAY_SIZE(devices); ++i)
 197                 platform_device_unregister(devices[i]);
 198         platform_driver_unregister(&snd_es1688_driver);
 199 }
 200
 201 static int __init alsa_card_es1688_init(void)
 202 {
 203         int i, cards, err;
 204
 205         err = platform_driver_register(&snd_es1688_driver);
 206         if (err < 0)
 207                 return err;
 208
 209         cards = 0;
 210         for (i = 0; i < SNDRV_CARDS; i++) {
 211                 struct platform_device *device;
 212                 if (! enable[i])
 213                         continue;
 214                 device = platform_device_register_simple(ES1688_DRIVER,
 215                                                          i, NULL, 0);
 216                 if (IS_ERR(device))
 217                         continue;
 218                 if (!platform_get_drvdata(device)) {
 219                         platform_device_unregister(device);
 220                         continue;
 221                 }
 222                 devices[i] = device;
 223                 cards++;
 224         }
 225         if (!cards) {
 226 #ifdef MODULE
 227                 printk(KERN_ERR "ESS AudioDrive ES1688 soundcard not found or device busy\n");
 228 #endif
 229                 snd_es1688_unregister_all();
 230                 return -ENODEV;
 231         }
 232         return 0;
 233 }
 234
 235 static void __exit alsa_card_es1688_exit(void)
 236 {
 237         snd_es1688_unregister_all();
 238 }
 239
 240 module_init(alsa_card_es1688_init)
 241 module_exit(alsa_card_es1688_exit)