2 * Driver for SoundBlaster 1.0/2.0/Pro soundcards and compatible
3 * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
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.
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.
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
22 #include <sound/driver.h>
23 #include <linux/init.h>
24 #include <linux/slab.h>
25 #include <linux/ioport.h>
26 #include <linux/moduleparam.h>
27 #include <sound/core.h>
29 #include <sound/opl3.h>
30 #define SNDRV_LEGACY_AUTO_PROBE
31 #include <sound/initval.h>
35 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
36 MODULE_DESCRIPTION("Sound Blaster 1.0/2.0/Pro");
37 MODULE_LICENSE("GPL");
38 MODULE_CLASSES("{sound}");
39 MODULE_DEVICES("{{Creative Labs,SB 1.0/SB 2.0/SB Pro}}");
41 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
42 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
43 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
44 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x240,0x260 */
45 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,10 */
46 static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3 */
49 module_param_array(index, int, boot_devs, 0444);
50 MODULE_PARM_DESC(index, "Index value for Sound Blaster soundcard.");
51 MODULE_PARM_SYNTAX(index, SNDRV_INDEX_DESC);
52 module_param_array(id, charp, boot_devs, 0444);
53 MODULE_PARM_DESC(id, "ID string for Sound Blaster soundcard.");
54 MODULE_PARM_SYNTAX(id, SNDRV_ID_DESC);
55 module_param_array(enable, bool, boot_devs, 0444);
56 MODULE_PARM_DESC(enable, "Enable Sound Blaster soundcard.");
57 MODULE_PARM_SYNTAX(enable, SNDRV_ENABLE_DESC);
58 module_param_array(port, long, boot_devs, 0444);
59 MODULE_PARM_DESC(port, "Port # for SB8 driver.");
60 MODULE_PARM_SYNTAX(port, SNDRV_PORT12_DESC);
61 module_param_array(irq, int, boot_devs, 0444);
62 MODULE_PARM_DESC(irq, "IRQ # for SB8 driver.");
63 MODULE_PARM_SYNTAX(irq, SNDRV_IRQ_DESC);
64 module_param_array(dma8, int, boot_devs, 0444);
65 MODULE_PARM_DESC(dma8, "8-bit DMA # for SB8 driver.");
66 MODULE_PARM_SYNTAX(dma8, SNDRV_DMA8_DESC);
69 struct resource *fm_res; /* used to block FM i/o region for legacy cards */
72 static snd_card_t *snd_sb8_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
74 static irqreturn_t snd_sb8_interrupt(int irq, void *dev_id, struct pt_regs *regs)
76 sb_t *chip = snd_magic_cast(sb_t, dev_id, return IRQ_NONE);
78 if (chip->open & SB_OPEN_PCM) {
79 return snd_sb8dsp_interrupt(chip);
81 return snd_sb8dsp_midi_interrupt(chip);
85 static void snd_sb8_free(snd_card_t *card)
87 struct snd_sb8 *acard = (struct snd_sb8 *)card->private_data;
92 release_resource(acard->fm_res);
93 kfree_nocheck(acard->fm_res);
97 static int __init snd_sb8_probe(int dev)
101 struct snd_sb8 *acard;
105 card = snd_card_new(index[dev], id[dev], THIS_MODULE,
106 sizeof(struct snd_sb8));
109 acard = (struct snd_sb8 *)card->private_data;
110 card->private_free = snd_sb8_free;
112 /* block the 0x388 port to avoid PnP conflicts */
113 acard->fm_res = request_region(0x388, 4, "SoundBlaster FM");
115 if ((err = snd_sbdsp_create(card, port[dev], irq[dev],
124 if (chip->hardware >= SB_HW_16) {
126 if (chip->hardware == SB_HW_ALS100)
127 snd_printdd("ALS100 chip detected at 0x%lx, try snd-als100 module\n",
130 snd_printdd("SB 16 chip detected at 0x%lx, try snd-sb16 module\n",
135 if ((err = snd_sb8dsp_pcm(chip, 0, NULL)) < 0) {
139 if ((err = snd_sbmixer_new(chip)) < 0) {
143 if (chip->hardware == SB_HW_10 || chip->hardware == SB_HW_20) {
144 if ((err = snd_opl3_create(card, chip->port + 8, 0,
147 snd_printk(KERN_ERR "sb8: no OPL device at 0x%lx\n", chip->port + 8);
150 if ((err = snd_opl3_create(card, chip->port, chip->port + 2,
153 snd_printk(KERN_ERR "sb8: no OPL device at 0x%lx-0x%lx\n",
154 chip->port, chip->port + 2);
158 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
164 if ((err = snd_sb8dsp_midi(chip, 0, NULL)) < 0) {
169 strcpy(card->driver, chip->hardware == SB_HW_PRO ? "SB Pro" : "SB8");
170 strcpy(card->shortname, chip->name);
171 sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
174 irq[dev], dma8[dev]);
175 if ((err = snd_card_register(card)) < 0) {
179 snd_sb8_cards[dev] = card;
183 static int __init snd_card_sb8_legacy_auto_probe(unsigned long xport)
188 for ( ; dev < SNDRV_CARDS; dev++) {
189 if (!enable[dev] || port[dev] != SNDRV_AUTO_PORT)
192 res = snd_sb8_probe(dev);
194 port[dev] = SNDRV_AUTO_PORT;
200 static int __init alsa_card_sb8_init(void)
202 static unsigned long possible_ports[] = {0x220, 0x240, 0x260, -1};
205 for (dev = cards = 0; dev < SNDRV_CARDS && enable[dev]; dev++) {
206 if (port[dev] == SNDRV_AUTO_PORT)
208 if (snd_sb8_probe(dev) >= 0)
211 i = snd_legacy_auto_probe(possible_ports, snd_card_sb8_legacy_auto_probe);
217 snd_printk(KERN_ERR "Sound Blaster soundcard not found or device busy\n");
224 static void __exit alsa_card_sb8_exit(void)
228 for (idx = 0; idx < SNDRV_CARDS; idx++)
229 snd_card_free(snd_sb8_cards[idx]);
232 module_init(alsa_card_sb8_init)
233 module_exit(alsa_card_sb8_exit)