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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /sound/isa/sb/sb8.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'sound/isa/sb/sb8.c')
-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
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+++ b/sound/isa/sb/sb8.c
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1/*
2 * Driver for SoundBlaster 1.0/2.0/Pro soundcards and compatible
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/slab.h>
25#include <linux/ioport.h>
26#include <linux/moduleparam.h>
27#include <sound/core.h>
28#include <sound/sb.h>
29#include <sound/opl3.h>
30#define SNDRV_LEGACY_AUTO_PROBE
31#include <sound/initval.h>
32
33MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
34MODULE_DESCRIPTION("Sound Blaster 1.0/2.0/Pro");
35MODULE_LICENSE("GPL");
36MODULE_SUPPORTED_DEVICE("{{Creative Labs,SB 1.0/SB 2.0/SB Pro}}");
37
38static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
39static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
40static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
41static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x240,0x260 */
42static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,10 */
43static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3 */
44
45module_param_array(index, int, NULL, 0444);
46MODULE_PARM_DESC(index, "Index value for Sound Blaster soundcard.");
47module_param_array(id, charp, NULL, 0444);
48MODULE_PARM_DESC(id, "ID string for Sound Blaster soundcard.");
49module_param_array(enable, bool, NULL, 0444);
50MODULE_PARM_DESC(enable, "Enable Sound Blaster soundcard.");
51module_param_array(port, long, NULL, 0444);
52MODULE_PARM_DESC(port, "Port # for SB8 driver.");
53module_param_array(irq, int, NULL, 0444);
54MODULE_PARM_DESC(irq, "IRQ # for SB8 driver.");
55module_param_array(dma8, int, NULL, 0444);
56MODULE_PARM_DESC(dma8, "8-bit DMA # for SB8 driver.");
57
58struct snd_sb8 {
59 struct resource *fm_res; /* used to block FM i/o region for legacy cards */
60};
61
62static snd_card_t *snd_sb8_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
63
64static irqreturn_t snd_sb8_interrupt(int irq, void *dev_id, struct pt_regs *regs)
65{
66 sb_t *chip = dev_id;
67
68 if (chip->open & SB_OPEN_PCM) {
69 return snd_sb8dsp_interrupt(chip);
70 } else {
71 return snd_sb8dsp_midi_interrupt(chip);
72 }
73}
74
75static void snd_sb8_free(snd_card_t *card)
76{
77 struct snd_sb8 *acard = (struct snd_sb8 *)card->private_data;
78
79 if (acard == NULL)
80 return;
81 if (acard->fm_res) {
82 release_resource(acard->fm_res);
83 kfree_nocheck(acard->fm_res);
84 }
85}
86
87static int __init snd_sb8_probe(int dev)
88{
89 sb_t *chip;
90 snd_card_t *card;
91 struct snd_sb8 *acard;
92 opl3_t *opl3;
93 int err;
94
95 card = snd_card_new(index[dev], id[dev], THIS_MODULE,
96 sizeof(struct snd_sb8));
97 if (card == NULL)
98 return -ENOMEM;
99 acard = (struct snd_sb8 *)card->private_data;
100 card->private_free = snd_sb8_free;
101
102 /* block the 0x388 port to avoid PnP conflicts */
103 acard->fm_res = request_region(0x388, 4, "SoundBlaster FM");
104
105 if ((err = snd_sbdsp_create(card, port[dev], irq[dev],
106 snd_sb8_interrupt,
107 dma8[dev],
108 -1,
109 SB_HW_AUTO,
110 &chip)) < 0) {
111 snd_card_free(card);
112 return err;
113 }
114 if (chip->hardware >= SB_HW_16) {
115 snd_card_free(card);
116 if (chip->hardware == SB_HW_ALS100)
117 snd_printdd("ALS100 chip detected at 0x%lx, try snd-als100 module\n",
118 port[dev]);
119 else
120 snd_printdd("SB 16 chip detected at 0x%lx, try snd-sb16 module\n",
121 port[dev]);
122 return -ENODEV;
123 }
124
125 if ((err = snd_sb8dsp_pcm(chip, 0, NULL)) < 0) {
126 snd_card_free(card);
127 return err;
128 }
129 if ((err = snd_sbmixer_new(chip)) < 0) {
130 snd_card_free(card);
131 return err;
132 }
133 if (chip->hardware == SB_HW_10 || chip->hardware == SB_HW_20) {
134 if ((err = snd_opl3_create(card, chip->port + 8, 0,
135 OPL3_HW_AUTO, 1,
136 &opl3)) < 0) {
137 snd_printk(KERN_ERR "sb8: no OPL device at 0x%lx\n", chip->port + 8);
138 }
139 } else {
140 if ((err = snd_opl3_create(card, chip->port, chip->port + 2,
141 OPL3_HW_AUTO, 1,
142 &opl3)) < 0) {
143 snd_printk(KERN_ERR "sb8: no OPL device at 0x%lx-0x%lx\n",
144 chip->port, chip->port + 2);
145 }
146 }
147 if (err >= 0) {
148 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
149 snd_card_free(card);
150 return err;
151 }
152 }
153
154 if ((err = snd_sb8dsp_midi(chip, 0, NULL)) < 0) {
155 snd_card_free(card);
156 return err;
157 }
158
159 strcpy(card->driver, chip->hardware == SB_HW_PRO ? "SB Pro" : "SB8");
160 strcpy(card->shortname, chip->name);
161 sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
162 chip->name,
163 chip->port,
164 irq[dev], dma8[dev]);
165 if ((err = snd_card_register(card)) < 0) {
166 snd_card_free(card);
167 return err;
168 }
169 snd_sb8_cards[dev] = card;
170 return 0;
171}
172
173static int __init snd_card_sb8_legacy_auto_probe(unsigned long xport)
174{
175 static int dev;
176 int res;
177
178 for ( ; dev < SNDRV_CARDS; dev++) {
179 if (!enable[dev] || port[dev] != SNDRV_AUTO_PORT)
180 continue;
181 port[dev] = xport;
182 res = snd_sb8_probe(dev);
183 if (res < 0)
184 port[dev] = SNDRV_AUTO_PORT;
185 return res;
186 }
187 return -ENODEV;
188}
189
190static int __init alsa_card_sb8_init(void)
191{
192 static unsigned long possible_ports[] = {0x220, 0x240, 0x260, -1};
193 int dev, cards, i;
194
195 for (dev = cards = 0; dev < SNDRV_CARDS && enable[dev]; dev++) {
196 if (port[dev] == SNDRV_AUTO_PORT)
197 continue;
198 if (snd_sb8_probe(dev) >= 0)
199 cards++;
200 }
201 i = snd_legacy_auto_probe(possible_ports, snd_card_sb8_legacy_auto_probe);
202 if (i > 0)
203 cards += i;
204
205 if (!cards) {
206#ifdef MODULE
207 snd_printk(KERN_ERR "Sound Blaster soundcard not found or device busy\n");
208#endif
209 return -ENODEV;
210 }
211 return 0;
212}
213
214static void __exit alsa_card_sb8_exit(void)
215{
216 int idx;
217
218 for (idx = 0; idx < SNDRV_CARDS; idx++)
219 snd_card_free(snd_sb8_cards[idx]);
220}
221
222module_init(alsa_card_sb8_init)
223module_exit(alsa_card_sb8_exit)