a1b3786b391ea7fc56e309c263b27bcf2575622f
[linux-2.6.git] / sound / isa / sb / sb8.c
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/err.h>
25 #include <linux/isa.h>
26 #include <linux/slab.h>
27 #include <linux/ioport.h>
28 #include <linux/moduleparam.h>
29 #include <sound/core.h>
30 #include <sound/sb.h>
31 #include <sound/opl3.h>
32 #include <sound/initval.h>
33
34 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
35 MODULE_DESCRIPTION("Sound Blaster 1.0/2.0/Pro");
36 MODULE_LICENSE("GPL");
37 MODULE_SUPPORTED_DEVICE("{{Creative Labs,SB 1.0/SB 2.0/SB Pro}}");
38
39 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
40 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
41 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;  /* Enable this card */
42 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* 0x220,0x240,0x260 */
43 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 5,7,9,10 */
44 static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 1,3 */
45
46 module_param_array(index, int, NULL, 0444);
47 MODULE_PARM_DESC(index, "Index value for Sound Blaster soundcard.");
48 module_param_array(id, charp, NULL, 0444);
49 MODULE_PARM_DESC(id, "ID string for Sound Blaster soundcard.");
50 module_param_array(enable, bool, NULL, 0444);
51 MODULE_PARM_DESC(enable, "Enable Sound Blaster soundcard.");
52 module_param_array(port, long, NULL, 0444);
53 MODULE_PARM_DESC(port, "Port # for SB8 driver.");
54 module_param_array(irq, int, NULL, 0444);
55 MODULE_PARM_DESC(irq, "IRQ # for SB8 driver.");
56 module_param_array(dma8, int, NULL, 0444);
57 MODULE_PARM_DESC(dma8, "8-bit DMA # for SB8 driver.");
58
59 struct snd_sb8 {
60         struct resource *fm_res;        /* used to block FM i/o region for legacy cards */
61         struct snd_sb *chip;
62 };
63
64 static irqreturn_t snd_sb8_interrupt(int irq, void *dev_id)
65 {
66         struct snd_sb *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(struct snd_card *card)
76 {
77         struct snd_sb8 *acard = (struct snd_sb8 *)card->private_data;
78
79         if (acard == NULL)
80                 return;
81         release_and_free_resource(acard->fm_res);
82 }
83
84 static int __devinit snd_sb8_match(struct device *pdev, unsigned int dev)
85 {
86         if (!enable[dev])
87                 return 0;
88         if (irq[dev] == SNDRV_AUTO_IRQ) {
89                 snd_printk(KERN_ERR "%s: please specify irq\n", pdev->bus_id);
90                 return 0;
91         }
92         if (dma8[dev] == SNDRV_AUTO_DMA) {
93                 snd_printk(KERN_ERR "%s: please specify dma8\n", pdev->bus_id);
94                 return 0;
95         }
96         return 1;
97 }
98
99 static int __devinit snd_sb8_probe(struct device *pdev, unsigned int dev)
100 {
101         struct snd_sb *chip;
102         struct snd_card *card;
103         struct snd_sb8 *acard;
104         struct snd_opl3 *opl3;
105         int err;
106
107         card = snd_card_new(index[dev], id[dev], THIS_MODULE,
108                             sizeof(struct snd_sb8));
109         if (card == NULL)
110                 return -ENOMEM;
111         acard = card->private_data;
112         card->private_free = snd_sb8_free;
113
114         /* block the 0x388 port to avoid PnP conflicts */
115         acard->fm_res = request_region(0x388, 4, "SoundBlaster FM");
116
117         if (port[dev] != SNDRV_AUTO_PORT) {
118                 if ((err = snd_sbdsp_create(card, port[dev], irq[dev],
119                                             snd_sb8_interrupt,
120                                             dma8[dev],
121                                             -1,
122                                             SB_HW_AUTO,
123                                             &chip)) < 0)
124                         goto _err;
125         } else {
126                 /* auto-probe legacy ports */
127                 static unsigned long possible_ports[] = {
128                         0x220, 0x240, 0x260,
129                 };
130                 int i;
131                 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
132                         err = snd_sbdsp_create(card, possible_ports[i],
133                                                irq[dev],
134                                                snd_sb8_interrupt,
135                                                dma8[dev],
136                                                -1,
137                                                SB_HW_AUTO,
138                                                &chip);
139                         if (err >= 0) {
140                                 port[dev] = possible_ports[i];
141                                 break;
142                         }
143                 }
144                 if (i >= ARRAY_SIZE(possible_ports))
145                         goto _err;
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
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
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
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
257 static int __init alsa_card_sb8_init(void)
258 {
259         return isa_register_driver(&snd_sb8_driver, SNDRV_CARDS);
260 }
261
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)