ff18286fef9d588c5e34f602506c131733da5bf1
[linux-2.6.git] / sound / isa / sb / es968.c
1
2 /*
3     card-es968.c - driver for ESS AudioDrive ES968 based soundcards.
4     Copyright (C) 1999 by Massimo Piccioni <dafastidio@libero.it>
5
6     Thanks to Pierfrancesco 'qM2' Passerini.
7
8     This program is free software; you can redistribute it and/or modify
9     it under the terms of the GNU General Public License as published by
10     the Free Software Foundation; either version 2 of the License, or
11     (at your option) any later version.
12
13     This program is distributed in the hope that it will be useful,
14     but WITHOUT ANY WARRANTY; without even the implied warranty of
15     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16     GNU General Public License for more details.
17
18     You should have received a copy of the GNU General Public License
19     along with this program; if not, write to the Free Software
20     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
21 */
22
23 #include <linux/init.h>
24 #include <linux/time.h>
25 #include <linux/pnp.h>
26 #include <linux/moduleparam.h>
27 #include <sound/core.h>
28 #include <sound/initval.h>
29 #include <sound/sb.h>
30
31 #define PFX "es968: "
32
33 MODULE_AUTHOR("Massimo Piccioni <dafastidio@libero.it>");
34 MODULE_DESCRIPTION("ESS AudioDrive ES968");
35 MODULE_LICENSE("GPL");
36 MODULE_SUPPORTED_DEVICE("{{ESS,AudioDrive ES968}}");
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_ISAPNP; /* Enable this card */
41 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* PnP setup */
42 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* Pnp setup */
43 static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* PnP setup */
44
45 module_param_array(index, int, NULL, 0444);
46 MODULE_PARM_DESC(index, "Index value for es968 based soundcard.");
47 module_param_array(id, charp, NULL, 0444);
48 MODULE_PARM_DESC(id, "ID string for es968 based soundcard.");
49 module_param_array(enable, bool, NULL, 0444);
50 MODULE_PARM_DESC(enable, "Enable es968 based soundcard.");
51
52 struct snd_card_es968 {
53         struct pnp_dev *dev;
54         struct snd_sb *chip;
55 };
56
57 static struct pnp_card_device_id snd_es968_pnpids[] = {
58         { .id = "ESS0968", .devs = { { "@@@0968" }, } },
59         { .id = "", } /* end */
60 };
61
62 MODULE_DEVICE_TABLE(pnp_card, snd_es968_pnpids);
63
64 #define DRIVER_NAME     "snd-card-es968"
65
66 static irqreturn_t snd_card_es968_interrupt(int irq, void *dev_id)
67 {
68         struct snd_sb *chip = dev_id;
69
70         if (chip->open & SB_OPEN_PCM) {
71                 return snd_sb8dsp_interrupt(chip);
72         } else {
73                 return snd_sb8dsp_midi_interrupt(chip);
74         }
75 }
76
77 static int __devinit snd_card_es968_pnp(int dev, struct snd_card_es968 *acard,
78                                         struct pnp_card_link *card,
79                                         const struct pnp_card_device_id *id)
80 {
81         struct pnp_dev *pdev;
82         int err;
83
84         acard->dev = pnp_request_card_device(card, id->devs[0].id, NULL);
85         if (acard->dev == NULL)
86                 return -ENODEV;
87
88         pdev = acard->dev;
89
90         err = pnp_activate_dev(pdev);
91         if (err < 0) {
92                 snd_printk(KERN_ERR PFX "AUDIO pnp configure failure\n");
93                 return err;
94         }
95         port[dev] = pnp_port_start(pdev, 0);
96         dma8[dev] = pnp_dma(pdev, 0);
97         irq[dev] = pnp_irq(pdev, 0);
98
99         return 0;
100 }
101
102 static int __devinit snd_card_es968_probe(int dev,
103                                         struct pnp_card_link *pcard,
104                                         const struct pnp_card_device_id *pid)
105 {
106         int error;
107         struct snd_sb *chip;
108         struct snd_card *card;
109         struct snd_card_es968 *acard;
110
111         error = snd_card_create(index[dev], id[dev], THIS_MODULE,
112                                 sizeof(struct snd_card_es968), &card);
113         if (error < 0)
114                 return error;
115         acard = card->private_data;
116         if ((error = snd_card_es968_pnp(dev, acard, pcard, pid))) {
117                 snd_card_free(card);
118                 return error;
119         }
120         snd_card_set_dev(card, &pcard->card->dev);
121
122         if ((error = snd_sbdsp_create(card, port[dev],
123                                       irq[dev],
124                                       snd_card_es968_interrupt,
125                                       dma8[dev],
126                                       -1,
127                                       SB_HW_AUTO, &chip)) < 0) {
128                 snd_card_free(card);
129                 return error;
130         }
131         acard->chip = chip;
132
133         if ((error = snd_sb8dsp_pcm(chip, 0, NULL)) < 0) {
134                 snd_card_free(card);
135                 return error;
136         }
137
138         if ((error = snd_sbmixer_new(chip)) < 0) {
139                 snd_card_free(card);
140                 return error;
141         }
142
143         if ((error = snd_sb8dsp_midi(chip, 0, NULL)) < 0) {
144                 snd_card_free(card);
145                 return error;
146         }
147
148         strcpy(card->driver, "ES968");
149         strcpy(card->shortname, "ESS ES968");
150         sprintf(card->longname, "%s soundcard, %s at 0x%lx, irq %d, dma %d",
151                 card->shortname, chip->name, chip->port, irq[dev], dma8[dev]);
152
153         if ((error = snd_card_register(card)) < 0) {
154                 snd_card_free(card);
155                 return error;
156         }
157         pnp_set_card_drvdata(pcard, card);
158         return 0;
159 }
160
161 static unsigned int __devinitdata es968_devices;
162
163 static int __devinit snd_es968_pnp_detect(struct pnp_card_link *card,
164                                           const struct pnp_card_device_id *id)
165 {
166         static int dev;
167         int res;
168
169         for ( ; dev < SNDRV_CARDS; dev++) {
170                 if (!enable[dev])
171                         continue;
172                 res = snd_card_es968_probe(dev, card, id);
173                 if (res < 0)
174                         return res;
175                 dev++;
176                 es968_devices++;
177                 return 0;
178         }
179         return -ENODEV;
180 }
181
182 static void __devexit snd_es968_pnp_remove(struct pnp_card_link * pcard)
183 {
184         snd_card_free(pnp_get_card_drvdata(pcard));
185         pnp_set_card_drvdata(pcard, NULL);
186 }
187
188 #ifdef CONFIG_PM
189 static int snd_es968_pnp_suspend(struct pnp_card_link *pcard, pm_message_t state)
190 {
191         struct snd_card *card = pnp_get_card_drvdata(pcard);
192         struct snd_card_es968 *acard = card->private_data;
193         struct snd_sb *chip = acard->chip;
194
195         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
196         snd_pcm_suspend_all(chip->pcm);
197         snd_sbmixer_suspend(chip);
198         return 0;
199 }
200
201 static int snd_es968_pnp_resume(struct pnp_card_link *pcard)
202 {
203         struct snd_card *card = pnp_get_card_drvdata(pcard);
204         struct snd_card_es968 *acard = card->private_data;
205         struct snd_sb *chip = acard->chip;
206
207         snd_sbdsp_reset(chip);
208         snd_sbmixer_resume(chip);
209         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
210         return 0;
211 }
212 #endif
213
214 static struct pnp_card_driver es968_pnpc_driver = {
215         .flags          = PNP_DRIVER_RES_DISABLE,
216         .name           = "es968",
217         .id_table       = snd_es968_pnpids,
218         .probe          = snd_es968_pnp_detect,
219         .remove         = __devexit_p(snd_es968_pnp_remove),
220 #ifdef CONFIG_PM
221         .suspend        = snd_es968_pnp_suspend,
222         .resume         = snd_es968_pnp_resume,
223 #endif
224 };
225
226 static int __init alsa_card_es968_init(void)
227 {
228         int err = pnp_register_card_driver(&es968_pnpc_driver);
229         if (err)
230                 return err;
231
232         if (!es968_devices) {
233                 pnp_unregister_card_driver(&es968_pnpc_driver);
234 #ifdef MODULE
235                 snd_printk(KERN_ERR "no ES968 based soundcards found\n");
236 #endif
237                 return -ENODEV;
238         }
239         return 0;
240 }
241
242 static void __exit alsa_card_es968_exit(void)
243 {
244         pnp_unregister_card_driver(&es968_pnpc_driver);
245 }
246
247 module_init(alsa_card_es968_init)
248 module_exit(alsa_card_es968_exit)