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1da177e4 LT |
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 | ||
33 | MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>"); | |
34 | MODULE_DESCRIPTION("Sound Blaster 1.0/2.0/Pro"); | |
35 | MODULE_LICENSE("GPL"); | |
36 | MODULE_SUPPORTED_DEVICE("{{Creative Labs,SB 1.0/SB 2.0/SB Pro}}"); | |
37 | ||
38 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ | |
39 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ | |
40 | static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */ | |
41 | static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x240,0x260 */ | |
42 | static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,10 */ | |
43 | static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3 */ | |
44 | ||
45 | module_param_array(index, int, NULL, 0444); | |
46 | MODULE_PARM_DESC(index, "Index value for Sound Blaster soundcard."); | |
47 | module_param_array(id, charp, NULL, 0444); | |
48 | MODULE_PARM_DESC(id, "ID string for Sound Blaster soundcard."); | |
49 | module_param_array(enable, bool, NULL, 0444); | |
50 | MODULE_PARM_DESC(enable, "Enable Sound Blaster soundcard."); | |
51 | module_param_array(port, long, NULL, 0444); | |
52 | MODULE_PARM_DESC(port, "Port # for SB8 driver."); | |
53 | module_param_array(irq, int, NULL, 0444); | |
54 | MODULE_PARM_DESC(irq, "IRQ # for SB8 driver."); | |
55 | module_param_array(dma8, int, NULL, 0444); | |
56 | MODULE_PARM_DESC(dma8, "8-bit DMA # for SB8 driver."); | |
57 | ||
58 | struct snd_sb8 { | |
59 | struct resource *fm_res; /* used to block FM i/o region for legacy cards */ | |
60 | }; | |
61 | ||
62 | static snd_card_t *snd_sb8_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR; | |
63 | ||
64 | static 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 | ||
75 | static 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; | |
b1d5776d | 81 | release_and_free_resource(acard->fm_res); |
1da177e4 LT |
82 | } |
83 | ||
84 | static int __init snd_sb8_probe(int dev) | |
85 | { | |
86 | sb_t *chip; | |
87 | snd_card_t *card; | |
88 | struct snd_sb8 *acard; | |
89 | opl3_t *opl3; | |
90 | int err; | |
91 | ||
92 | card = snd_card_new(index[dev], id[dev], THIS_MODULE, | |
93 | sizeof(struct snd_sb8)); | |
94 | if (card == NULL) | |
95 | return -ENOMEM; | |
96 | acard = (struct snd_sb8 *)card->private_data; | |
97 | card->private_free = snd_sb8_free; | |
98 | ||
99 | /* block the 0x388 port to avoid PnP conflicts */ | |
100 | acard->fm_res = request_region(0x388, 4, "SoundBlaster FM"); | |
101 | ||
102 | if ((err = snd_sbdsp_create(card, port[dev], irq[dev], | |
103 | snd_sb8_interrupt, | |
104 | dma8[dev], | |
105 | -1, | |
106 | SB_HW_AUTO, | |
43bcd973 TI |
107 | &chip)) < 0) |
108 | goto _err; | |
109 | ||
1da177e4 | 110 | if (chip->hardware >= SB_HW_16) { |
1da177e4 | 111 | if (chip->hardware == SB_HW_ALS100) |
43bcd973 | 112 | snd_printk(KERN_WARNING "ALS100 chip detected at 0x%lx, try snd-als100 module\n", |
1da177e4 LT |
113 | port[dev]); |
114 | else | |
43bcd973 TI |
115 | snd_printk(KERN_WARNING "SB 16 chip detected at 0x%lx, try snd-sb16 module\n", |
116 | port[dev]); | |
117 | err = -ENODEV; | |
118 | goto _err; | |
1da177e4 LT |
119 | } |
120 | ||
43bcd973 TI |
121 | if ((err = snd_sb8dsp_pcm(chip, 0, NULL)) < 0) |
122 | goto _err; | |
123 | ||
124 | if ((err = snd_sbmixer_new(chip)) < 0) | |
125 | goto _err; | |
126 | ||
1da177e4 LT |
127 | if (chip->hardware == SB_HW_10 || chip->hardware == SB_HW_20) { |
128 | if ((err = snd_opl3_create(card, chip->port + 8, 0, | |
129 | OPL3_HW_AUTO, 1, | |
130 | &opl3)) < 0) { | |
43bcd973 | 131 | snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx\n", chip->port + 8); |
1da177e4 LT |
132 | } |
133 | } else { | |
134 | if ((err = snd_opl3_create(card, chip->port, chip->port + 2, | |
135 | OPL3_HW_AUTO, 1, | |
136 | &opl3)) < 0) { | |
43bcd973 | 137 | snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx-0x%lx\n", |
1da177e4 LT |
138 | chip->port, chip->port + 2); |
139 | } | |
140 | } | |
141 | if (err >= 0) { | |
43bcd973 TI |
142 | if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) |
143 | goto _err; | |
1da177e4 LT |
144 | } |
145 | ||
43bcd973 TI |
146 | if ((err = snd_sb8dsp_midi(chip, 0, NULL)) < 0) |
147 | goto _err; | |
1da177e4 LT |
148 | |
149 | strcpy(card->driver, chip->hardware == SB_HW_PRO ? "SB Pro" : "SB8"); | |
150 | strcpy(card->shortname, chip->name); | |
151 | sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d", | |
152 | chip->name, | |
153 | chip->port, | |
154 | irq[dev], dma8[dev]); | |
43bcd973 TI |
155 | |
156 | if ((err = snd_card_set_generic_dev(card)) < 0) | |
157 | goto _err; | |
158 | ||
159 | if ((err = snd_card_register(card)) < 0) | |
160 | goto _err; | |
161 | ||
1da177e4 LT |
162 | snd_sb8_cards[dev] = card; |
163 | return 0; | |
43bcd973 TI |
164 | |
165 | _err: | |
166 | snd_card_free(card); | |
167 | return err; | |
1da177e4 LT |
168 | } |
169 | ||
170 | static int __init snd_card_sb8_legacy_auto_probe(unsigned long xport) | |
171 | { | |
172 | static int dev; | |
173 | int res; | |
174 | ||
175 | for ( ; dev < SNDRV_CARDS; dev++) { | |
176 | if (!enable[dev] || port[dev] != SNDRV_AUTO_PORT) | |
177 | continue; | |
178 | port[dev] = xport; | |
179 | res = snd_sb8_probe(dev); | |
180 | if (res < 0) | |
181 | port[dev] = SNDRV_AUTO_PORT; | |
182 | return res; | |
183 | } | |
184 | return -ENODEV; | |
185 | } | |
186 | ||
187 | static int __init alsa_card_sb8_init(void) | |
188 | { | |
189 | static unsigned long possible_ports[] = {0x220, 0x240, 0x260, -1}; | |
190 | int dev, cards, i; | |
191 | ||
192 | for (dev = cards = 0; dev < SNDRV_CARDS && enable[dev]; dev++) { | |
193 | if (port[dev] == SNDRV_AUTO_PORT) | |
194 | continue; | |
195 | if (snd_sb8_probe(dev) >= 0) | |
196 | cards++; | |
197 | } | |
198 | i = snd_legacy_auto_probe(possible_ports, snd_card_sb8_legacy_auto_probe); | |
199 | if (i > 0) | |
200 | cards += i; | |
201 | ||
202 | if (!cards) { | |
203 | #ifdef MODULE | |
204 | snd_printk(KERN_ERR "Sound Blaster soundcard not found or device busy\n"); | |
205 | #endif | |
206 | return -ENODEV; | |
207 | } | |
208 | return 0; | |
209 | } | |
210 | ||
211 | static void __exit alsa_card_sb8_exit(void) | |
212 | { | |
213 | int idx; | |
214 | ||
215 | for (idx = 0; idx < SNDRV_CARDS; idx++) | |
216 | snd_card_free(snd_sb8_cards[idx]); | |
217 | } | |
218 | ||
219 | module_init(alsa_card_sb8_init) | |
220 | module_exit(alsa_card_sb8_exit) |