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-rw-r--r--sound/isa/sb/sb8.c223
1 files changed, 223 insertions, 0 deletions
diff --git a/sound/isa/sb/sb8.c b/sound/isa/sb/sb8.c
new file mode 100644
index 000000000000..e2cbc4202b3d
--- /dev/null
+++ b/sound/isa/sb/sb8.c
@@ -0,0 +1,223 @@
+/*
+ * Driver for SoundBlaster 1.0/2.0/Pro soundcards and compatible
+ * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ *
+ *
+ * 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
+ *
+ */
+
+#include <sound/driver.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/ioport.h>
+#include <linux/moduleparam.h>
+#include <sound/core.h>
+#include <sound/sb.h>
+#include <sound/opl3.h>
+#define SNDRV_LEGACY_AUTO_PROBE
+#include <sound/initval.h>
+
+MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
+MODULE_DESCRIPTION("Sound Blaster 1.0/2.0/Pro");
+MODULE_LICENSE("GPL");
+MODULE_SUPPORTED_DEVICE("{{Creative Labs,SB 1.0/SB 2.0/SB Pro}}");
+
+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 long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x240,0x260 */
+static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,10 */
+static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3 */
+
+module_param_array(index, int, NULL, 0444);
+MODULE_PARM_DESC(index, "Index value for Sound Blaster soundcard.");
+module_param_array(id, charp, NULL, 0444);
+MODULE_PARM_DESC(id, "ID string for Sound Blaster soundcard.");
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(enable, "Enable Sound Blaster soundcard.");
+module_param_array(port, long, NULL, 0444);
+MODULE_PARM_DESC(port, "Port # for SB8 driver.");
+module_param_array(irq, int, NULL, 0444);
+MODULE_PARM_DESC(irq, "IRQ # for SB8 driver.");
+module_param_array(dma8, int, NULL, 0444);
+MODULE_PARM_DESC(dma8, "8-bit DMA # for SB8 driver.");
+
+struct snd_sb8 {
+ struct resource *fm_res; /* used to block FM i/o region for legacy cards */
+};
+
+static snd_card_t *snd_sb8_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
+
+static irqreturn_t snd_sb8_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+ sb_t *chip = dev_id;
+
+ if (chip->open & SB_OPEN_PCM) {
+ return snd_sb8dsp_interrupt(chip);
+ } else {
+ return snd_sb8dsp_midi_interrupt(chip);
+ }
+}
+
+static void snd_sb8_free(snd_card_t *card)
+{
+ struct snd_sb8 *acard = (struct snd_sb8 *)card->private_data;
+
+ if (acard == NULL)
+ return;
+ if (acard->fm_res) {
+ release_resource(acard->fm_res);
+ kfree_nocheck(acard->fm_res);
+ }
+}
+
+static int __init snd_sb8_probe(int dev)
+{
+ sb_t *chip;
+ snd_card_t *card;
+ struct snd_sb8 *acard;
+ opl3_t *opl3;
+ int err;
+
+ card = snd_card_new(index[dev], id[dev], THIS_MODULE,
+ sizeof(struct snd_sb8));
+ if (card == NULL)
+ return -ENOMEM;
+ acard = (struct snd_sb8 *)card->private_data;
+ card->private_free = snd_sb8_free;
+
+ /* block the 0x388 port to avoid PnP conflicts */
+ acard->fm_res = request_region(0x388, 4, "SoundBlaster FM");
+
+ if ((err = snd_sbdsp_create(card, port[dev], irq[dev],
+ snd_sb8_interrupt,
+ dma8[dev],
+ -1,
+ SB_HW_AUTO,
+ &chip)) < 0) {
+ snd_card_free(card);
+ return err;
+ }
+ if (chip->hardware >= SB_HW_16) {
+ snd_card_free(card);
+ if (chip->hardware == SB_HW_ALS100)
+ snd_printdd("ALS100 chip detected at 0x%lx, try snd-als100 module\n",
+ port[dev]);
+ else
+ snd_printdd("SB 16 chip detected at 0x%lx, try snd-sb16 module\n",
+ port[dev]);
+ return -ENODEV;
+ }
+
+ if ((err = snd_sb8dsp_pcm(chip, 0, NULL)) < 0) {
+ snd_card_free(card);
+ return err;
+ }
+ if ((err = snd_sbmixer_new(chip)) < 0) {
+ snd_card_free(card);
+ return err;
+ }
+ if (chip->hardware == SB_HW_10 || chip->hardware == SB_HW_20) {
+ if ((err = snd_opl3_create(card, chip->port + 8, 0,
+ OPL3_HW_AUTO, 1,
+ &opl3)) < 0) {
+ snd_printk(KERN_ERR "sb8: no OPL device at 0x%lx\n", chip->port + 8);
+ }
+ } else {
+ if ((err = snd_opl3_create(card, chip->port, chip->port + 2,
+ OPL3_HW_AUTO, 1,
+ &opl3)) < 0) {
+ snd_printk(KERN_ERR "sb8: no OPL device at 0x%lx-0x%lx\n",
+ chip->port, chip->port + 2);
+ }
+ }
+ if (err >= 0) {
+ if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
+ snd_card_free(card);
+ return err;
+ }
+ }
+
+ if ((err = snd_sb8dsp_midi(chip, 0, NULL)) < 0) {
+ snd_card_free(card);
+ return err;
+ }
+
+ strcpy(card->driver, chip->hardware == SB_HW_PRO ? "SB Pro" : "SB8");
+ strcpy(card->shortname, chip->name);
+ sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
+ chip->name,
+ chip->port,
+ irq[dev], dma8[dev]);
+ if ((err = snd_card_register(card)) < 0) {
+ snd_card_free(card);
+ return err;
+ }
+ snd_sb8_cards[dev] = card;
+ return 0;
+}
+
+static int __init snd_card_sb8_legacy_auto_probe(unsigned long xport)
+{
+ static int dev;
+ int res;
+
+ for ( ; dev < SNDRV_CARDS; dev++) {
+ if (!enable[dev] || port[dev] != SNDRV_AUTO_PORT)
+ continue;
+ port[dev] = xport;
+ res = snd_sb8_probe(dev);
+ if (res < 0)
+ port[dev] = SNDRV_AUTO_PORT;
+ return res;
+ }
+ return -ENODEV;
+}
+
+static int __init alsa_card_sb8_init(void)
+{
+ static unsigned long possible_ports[] = {0x220, 0x240, 0x260, -1};
+ int dev, cards, i;
+
+ for (dev = cards = 0; dev < SNDRV_CARDS && enable[dev]; dev++) {
+ if (port[dev] == SNDRV_AUTO_PORT)
+ continue;
+ if (snd_sb8_probe(dev) >= 0)
+ cards++;
+ }
+ i = snd_legacy_auto_probe(possible_ports, snd_card_sb8_legacy_auto_probe);
+ if (i > 0)
+ cards += i;
+
+ if (!cards) {
+#ifdef MODULE
+ snd_printk(KERN_ERR "Sound Blaster soundcard not found or device busy\n");
+#endif
+ return -ENODEV;
+ }
+ return 0;
+}
+
+static void __exit alsa_card_sb8_exit(void)
+{
+ int idx;
+
+ for (idx = 0; idx < SNDRV_CARDS; idx++)
+ snd_card_free(snd_sb8_cards[idx]);
+}
+
+module_init(alsa_card_sb8_init)
+module_exit(alsa_card_sb8_exit)
generated by cgit v1.2.3 (git 2.0.4) at 2024-04-16 10:15:26 +0000