source: GPL/alsa-kernel/pci/trident/trident.c@ 1

/*
 *  Driver for Trident 4DWave DX/NX & SiS SI7018 Audio PCI soundcard
 *
 *  Driver was originated by Trident <audio@tridentmicro.com>
 *                           Fri Feb 19 15:55:28 MST 1999
 *
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 *
 */

#define SNDRV_MAIN_OBJECT_FILE
#include <sound/driver.h>
#include <sound/trident.h>
#define SNDRV_GET_ID
#include <sound/initval.h>

EXPORT_NO_SYMBOLS;
MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>, <audio@tridentmicro.com>");
MODULE_DESCRIPTION("Trident 4D-WaveDX/NX & SiS SI7018");
MODULE_LICENSE("GPL");
MODULE_CLASSES("{sound}");
MODULE_DEVICES("{{Trident,4DWave DX},"
                "{Trident,4DWave NX},"
                "{SiS,SI7018 PCI Audio},"
                "{Best Union,Miss Melody 4DWave PCI},"
                "{HIS,4DWave PCI},"
                "{Warpspeed,ONSpeed 4DWave PCI},"
                "{Aztech Systems,PCI 64-Q3D},"
                "{Addonics,SV 750},"
                "{CHIC,True Sound 4Dwave},"
                "{Shark,Predator4D-PCI},"
                "{Jaton,SonicWave 4D},"
                "{Hoontech,SoundTrack Digital 4DWave NX}}");

static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;  /* Enable this card */
static int pcm_channels[SNDRV_CARDS] = {REPEAT_SNDRV(32)};
static int wavetable_size[SNDRV_CARDS] = {REPEAT_SNDRV(8192)};

MODULE_PARM(index, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
MODULE_PARM_DESC(index, "Index value for Trident 4DWave PCI soundcard.");
MODULE_PARM_SYNTAX(index, SNDRV_INDEX_DESC);
MODULE_PARM(id, "1-" __MODULE_STRING(SNDRV_CARDS) "s");
MODULE_PARM_DESC(id, "ID string for Trident 4DWave PCI soundcard.");
MODULE_PARM_SYNTAX(id, SNDRV_ID_DESC);
MODULE_PARM(enable, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
MODULE_PARM_DESC(enable, "Enable Trident 4DWave PCI soundcard.");
MODULE_PARM_SYNTAX(enable, SNDRV_ENABLE_DESC);
MODULE_PARM(pcm_channels, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
MODULE_PARM_DESC(pcm_channels, "Number of hardware channels assigned for PCM.");
MODULE_PARM_SYNTAX(pcm_channels, SNDRV_ENABLED ",default:32,allows:{{1,32}}");
MODULE_PARM(wavetable_size, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
MODULE_PARM_DESC(wavetable_size, "Maximum memory size in kB for wavetable synth.");
MODULE_PARM_SYNTAX(wavetable_size, SNDRV_ENABLED ",default:8192,skill:advanced");


static struct pci_device_id snd_trident_ids[] __devinitdata = {
        { 0x1023, 0x2000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },   /* Trident 4DWave DX PCI Audio */
        { 0x1023, 0x2001, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },   /* Trident 4DWave NX PCI Audio */
        { 0x1039, 0x7018, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },   /* SiS SI7018 PCI Audio */
        { 0, }
};

MODULE_DEVICE_TABLE(pci, snd_trident_ids);

static int __devinit snd_trident_probe(struct pci_dev *pci,
                                       const struct pci_device_id *pci_id)
{
        static int dev;
        snd_card_t *card;
        trident_t *trident;
        const char *str;
        int err, pcm_dev = 0;

        if (dev >= SNDRV_CARDS)
                return -ENODEV;
        if (!enable[dev]) {
                        dev++;
                        return -ENOENT;
                }

        card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
        if (card == NULL)
                return -ENOMEM;

        if ((err = snd_trident_create(card, pci,
                                      pcm_channels[dev],
                                      ((pci->vendor << 16) | pci->device) == TRIDENT_DEVICE_ID_SI7018 ? 1 : 2,
                                      wavetable_size[dev],
                                      &trident)) < 0) {
                snd_card_free(card);
                return err;
        }

        switch (trident->device) {
        case TRIDENT_DEVICE_ID_DX:
                str = "TRID4DWAVEDX";
                break;
        case TRIDENT_DEVICE_ID_NX:
                str = "TRID4DWAVENX";
                break;
        case TRIDENT_DEVICE_ID_SI7018:
                str = "SI7018";
                break;
        default:
                str = "Unknown";
        }
        strcpy(card->driver, str);
        if (trident->device == TRIDENT_DEVICE_ID_SI7018) {
                strcpy(card->shortname, "SiS ");
        } else {
                strcpy(card->shortname, "Trident ");
        }
        strcat(card->shortname, card->driver);
        sprintf(card->longname, "%s PCI Audio at 0x%lx, irq %d",
                card->shortname, trident->port, trident->irq);

        if ((err = snd_trident_pcm(trident, pcm_dev++, NULL)) < 0) {
                snd_card_free(card);
                return err;
        }
        switch (trident->device) {
        case TRIDENT_DEVICE_ID_DX:
        case TRIDENT_DEVICE_ID_NX:
                if ((err = snd_trident_foldback_pcm(trident, pcm_dev++, NULL)) < 0) {
                        snd_card_free(card);
                        return err;
                }
                break;
        }
        if (trident->device == TRIDENT_DEVICE_ID_NX || trident->device == TRIDENT_DEVICE_ID_SI7018) {
                if ((err = snd_trident_spdif_pcm(trident, pcm_dev++, NULL)) < 0) {
                        snd_card_free(card);
                        return err;
                }
        }
        if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_TRID4DWAVE,
                                       trident->midi_port, 1,
                                       trident->irq, 0, &trident->rmidi)) < 0) {
                snd_card_free(card);
                return err;
        }

#ifdef CONFIG_SND_SEQUENCER
        if ((err = snd_trident_attach_synthesizer(trident)) < 0) {
                snd_card_free(card);
                return err;
        }
#endif

        snd_trident_gameport(trident);

        if ((err = snd_card_register(card)) < 0) {
                snd_card_free(card);
                return err;
        }
        pci_set_drvdata(pci, card);
        dev++;
        return 0;
}

static void __devexit snd_trident_remove(struct pci_dev *pci)
{
    snd_card_free(pci_get_drvdata(pci));
    pci_set_drvdata(pci, NULL);
}

static struct pci_driver driver = {
        0, 0, 0, "Trident4DWaveAudio",
        snd_trident_ids,
        snd_trident_probe,
        snd_trident_remove,
        SND_PCI_PM_CALLBACKS
};                                

static int __init alsa_card_trident_init(void)
{
        int err;

        if ((err = pci_module_init(&driver)) < 0) {
#ifdef MODULE
//              snd_printk("Trident 4DWave PCI soundcard not found or device busy\n");
#endif
                return err;
        }
        return 0;
}

static void __exit alsa_card_trident_exit(void)
{
        pci_unregister_driver(&driver);
}

module_init(alsa_card_trident_init)
module_exit(alsa_card_trident_exit)

#ifndef MODULE

/* format is: snd-card-trident=snd_enable,snd_index,snd_id,
                               snd_pcm_channels,snd_wavetable_size */

static int __init alsa_card_trident_setup(char *str)
{
        static unsigned __initdata nr_dev = 0;

        if (nr_dev >= SNDRV_CARDS)
                return 0;
        (void)(get_option(&str,&enable[nr_dev]) == 2 &&
               get_option(&str,&index[nr_dev]) == 2 &&
               get_id(&str,&id[nr_dev]) == 2 &&
               get_option(&str,&pcm_channels[nr_dev]) == 2 &&
               get_option(&str,&wavetable_size[nr_dev]) == 2);
        nr_dev++;
        return 1;
}

__setup("snd-trident=", alsa_card_trident_setup);

#endif /* ifndef MODULE */