1 /*
2 * Driver for SoundBlaster 1.0/2.0/Pro soundcards and compatible
3 * Copyright (c) by Jaroslav Kysela <perex@perex.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 <linux/init.h>
23 #include <linux/err.h>
24 #include <linux/isa.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 #include <sound/initval.h>
31
32 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
33 MODULE_DESCRIPTION("Sound Blaster 1.0/2.0/Pro");
34 MODULE_LICENSE("GPL");
35 MODULE_SUPPORTED_DEVICE("{{Creative Labs,SB 1.0/SB 2.0/SB Pro}}");
36
37 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
38 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
39 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
40 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x240,0x260 */
41 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,10 */
42 static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3 */
43
44 module_param_array(index, int, NULL, 0444);
45 MODULE_PARM_DESC(index, "Index value for Sound Blaster soundcard.");
46 module_param_array(id, charp, NULL, 0444);
47 MODULE_PARM_DESC(id, "ID string for Sound Blaster soundcard.");
48 module_param_array(enable, bool, NULL, 0444);
49 MODULE_PARM_DESC(enable, "Enable Sound Blaster soundcard.");
50 module_param_array(port, long, NULL, 0444);
51 MODULE_PARM_DESC(port, "Port # for SB8 driver.");
52 module_param_array(irq, int, NULL, 0444);
53 MODULE_PARM_DESC(irq, "IRQ # for SB8 driver.");
54 module_param_array(dma8, int, NULL, 0444);
55 MODULE_PARM_DESC(dma8, "8-bit DMA # for SB8 driver.");
56
57 struct snd_sb8 {
58 struct resource *fm_res; /* used to block FM i/o region for legacy cards */
59 struct snd_sb *chip;
60 };
61
snd_sb8_interrupt(int irq,void * dev_id)62 static irqreturn_t snd_sb8_interrupt(int irq, void *dev_id)
63 {
64 struct snd_sb *chip = dev_id;
65
66 if (chip->open & SB_OPEN_PCM) {
67 return snd_sb8dsp_interrupt(chip);
68 } else {
69 return snd_sb8dsp_midi_interrupt(chip);
70 }
71 }
72
snd_sb8_free(struct snd_card * card)73 static void snd_sb8_free(struct snd_card *card)
74 {
75 struct snd_sb8 *acard = card->private_data;
76
77 if (acard == NULL)
78 return;
79 release_and_free_resource(acard->fm_res);
80 }
81
snd_sb8_match(struct device * pdev,unsigned int dev)82 static int __devinit snd_sb8_match(struct device *pdev, unsigned int dev)
83 {
84 if (!enable[dev])
85 return 0;
86 if (irq[dev] == SNDRV_AUTO_IRQ) {
87 dev_err(pdev, "please specify irq\n");
88 return 0;
89 }
90 if (dma8[dev] == SNDRV_AUTO_DMA) {
91 dev_err(pdev, "please specify dma8\n");
92 return 0;
93 }
94 return 1;
95 }
96
snd_sb8_probe(struct device * pdev,unsigned int dev)97 static int __devinit snd_sb8_probe(struct device *pdev, unsigned int dev)
98 {
99 struct snd_sb *chip;
100 struct snd_card *card;
101 struct snd_sb8 *acard;
102 struct snd_opl3 *opl3;
103 int err;
104
105 err = snd_card_create(index[dev], id[dev], THIS_MODULE,
106 sizeof(struct snd_sb8), &card);
107 if (err < 0)
108 return err;
109 acard = card->private_data;
110 card->private_free = snd_sb8_free;
111
112 /* block the 0x388 port to avoid PnP conflicts */
113 acard->fm_res = request_region(0x388, 4, "SoundBlaster FM");
114
115 if (port[dev] != SNDRV_AUTO_PORT) {
116 if ((err = snd_sbdsp_create(card, port[dev], irq[dev],
117 snd_sb8_interrupt,
118 dma8[dev],
119 -1,
120 SB_HW_AUTO,
121 &chip)) < 0)
122 goto _err;
123 } else {
124 /* auto-probe legacy ports */
125 static unsigned long possible_ports[] = {
126 0x220, 0x240, 0x260,
127 };
128 int i;
129 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
130 err = snd_sbdsp_create(card, possible_ports[i],
131 irq[dev],
132 snd_sb8_interrupt,
133 dma8[dev],
134 -1,
135 SB_HW_AUTO,
136 &chip);
137 if (err >= 0) {
138 port[dev] = possible_ports[i];
139 break;
140 }
141 }
142 if (i >= ARRAY_SIZE(possible_ports)) {
143 err = -EINVAL;
144 goto _err;
145 }
146 }
147 acard->chip = chip;
148
149 if (chip->hardware >= SB_HW_16) {
150 if (chip->hardware == SB_HW_ALS100)
151 snd_printk(KERN_WARNING "ALS100 chip detected at 0x%lx, try snd-als100 module\n",
152 port[dev]);
153 else
154 snd_printk(KERN_WARNING "SB 16 chip detected at 0x%lx, try snd-sb16 module\n",
155 port[dev]);
156 err = -ENODEV;
157 goto _err;
158 }
159
160 if ((err = snd_sb8dsp_pcm(chip, 0, NULL)) < 0)
161 goto _err;
162
163 if ((err = snd_sbmixer_new(chip)) < 0)
164 goto _err;
165
166 if (chip->hardware == SB_HW_10 || chip->hardware == SB_HW_20) {
167 if ((err = snd_opl3_create(card, chip->port + 8, 0,
168 OPL3_HW_AUTO, 1,
169 &opl3)) < 0) {
170 snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx\n", chip->port + 8);
171 }
172 } else {
173 if ((err = snd_opl3_create(card, chip->port, chip->port + 2,
174 OPL3_HW_AUTO, 1,
175 &opl3)) < 0) {
176 snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx-0x%lx\n",
177 chip->port, chip->port + 2);
178 }
179 }
180 if (err >= 0) {
181 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0)
182 goto _err;
183 }
184
185 if ((err = snd_sb8dsp_midi(chip, 0, NULL)) < 0)
186 goto _err;
187
188 strcpy(card->driver, chip->hardware == SB_HW_PRO ? "SB Pro" : "SB8");
189 strcpy(card->shortname, chip->name);
190 sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
191 chip->name,
192 chip->port,
193 irq[dev], dma8[dev]);
194
195 snd_card_set_dev(card, pdev);
196
197 if ((err = snd_card_register(card)) < 0)
198 goto _err;
199
200 dev_set_drvdata(pdev, card);
201 return 0;
202
203 _err:
204 snd_card_free(card);
205 return err;
206 }
207
snd_sb8_remove(struct device * pdev,unsigned int dev)208 static int __devexit snd_sb8_remove(struct device *pdev, unsigned int dev)
209 {
210 snd_card_free(dev_get_drvdata(pdev));
211 dev_set_drvdata(pdev, NULL);
212 return 0;
213 }
214
215 #ifdef CONFIG_PM
snd_sb8_suspend(struct device * dev,unsigned int n,pm_message_t state)216 static int snd_sb8_suspend(struct device *dev, unsigned int n,
217 pm_message_t state)
218 {
219 struct snd_card *card = dev_get_drvdata(dev);
220 struct snd_sb8 *acard = card->private_data;
221 struct snd_sb *chip = acard->chip;
222
223 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
224 snd_pcm_suspend_all(chip->pcm);
225 snd_sbmixer_suspend(chip);
226 return 0;
227 }
228
snd_sb8_resume(struct device * dev,unsigned int n)229 static int snd_sb8_resume(struct device *dev, unsigned int n)
230 {
231 struct snd_card *card = dev_get_drvdata(dev);
232 struct snd_sb8 *acard = card->private_data;
233 struct snd_sb *chip = acard->chip;
234
235 snd_sbdsp_reset(chip);
236 snd_sbmixer_resume(chip);
237 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
238 return 0;
239 }
240 #endif
241
242 #define DEV_NAME "sb8"
243
244 static struct isa_driver snd_sb8_driver = {
245 .match = snd_sb8_match,
246 .probe = snd_sb8_probe,
247 .remove = __devexit_p(snd_sb8_remove),
248 #ifdef CONFIG_PM
249 .suspend = snd_sb8_suspend,
250 .resume = snd_sb8_resume,
251 #endif
252 .driver = {
253 .name = DEV_NAME
254 },
255 };
256
alsa_card_sb8_init(void)257 static int __init alsa_card_sb8_init(void)
258 {
259 return isa_register_driver(&snd_sb8_driver, SNDRV_CARDS);
260 }
261
alsa_card_sb8_exit(void)262 static void __exit alsa_card_sb8_exit(void)
263 {
264 isa_unregister_driver(&snd_sb8_driver);
265 }
266
267 module_init(alsa_card_sb8_init)
268 module_exit(alsa_card_sb8_exit)
269