Linux-2.6.12-rc2
[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 <sound/driver.h>
24 #include <linux/init.h>
25 #include <linux/time.h>
26 #include <linux/pnp.h>
27 #include <linux/moduleparam.h>
28 #include <sound/core.h>
29 #include <sound/initval.h>
30 #include <sound/sb.h>
31
32 #define PFX "es968: "
33
34 MODULE_AUTHOR("Massimo Piccioni <dafastidio@libero.it>");
35 MODULE_DESCRIPTION("ESS AudioDrive ES968");
36 MODULE_LICENSE("GPL");
37 MODULE_SUPPORTED_DEVICE("{{ESS,AudioDrive ES968}}");
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_ISAPNP; /* Enable this card */
42 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* PnP setup */
43 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* Pnp setup */
44 static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* PnP setup */
45
46 module_param_array(index, int, NULL, 0444);
47 MODULE_PARM_DESC(index, "Index value for es968 based soundcard.");
48 module_param_array(id, charp, NULL, 0444);
49 MODULE_PARM_DESC(id, "ID string for es968 based soundcard.");
50 module_param_array(enable, bool, NULL, 0444);
51 MODULE_PARM_DESC(enable, "Enable es968 based soundcard.");
52 module_param_array(port, long, NULL, 0444);
53 MODULE_PARM_DESC(port, "Port # for es968 driver.");
54 module_param_array(irq, int, NULL, 0444);
55 MODULE_PARM_DESC(irq, "IRQ # for es968 driver.");
56 module_param_array(dma8, int, NULL, 0444);
57 MODULE_PARM_DESC(dma8, "8-bit DMA # for es968 driver.");
58
59 struct snd_card_es968 {
60         struct pnp_dev *dev;
61 };
62
63 static struct pnp_card_device_id snd_es968_pnpids[] = {
64         { .id = "ESS0968", .devs = { { "@@@0968" }, } },
65         { .id = "", } /* end */
66 };
67
68 MODULE_DEVICE_TABLE(pnp_card, snd_es968_pnpids);
69
70 #define DRIVER_NAME     "snd-card-es968"
71
72 static irqreturn_t snd_card_es968_interrupt(int irq, void *dev_id,
73                                             struct pt_regs *regs)
74 {
75         sb_t *chip = dev_id;
76
77         if (chip->open & SB_OPEN_PCM) {
78                 return snd_sb8dsp_interrupt(chip);
79         } else {
80                 return snd_sb8dsp_midi_interrupt(chip);
81         }
82 }
83
84 static int __devinit snd_card_es968_pnp(int dev, struct snd_card_es968 *acard,
85                                         struct pnp_card_link *card,
86                                         const struct pnp_card_device_id *id)
87 {
88         struct pnp_dev *pdev;
89         struct pnp_resource_table *cfg = kmalloc(sizeof(*cfg), GFP_KERNEL);
90         int err;
91         if (!cfg)
92                 return -ENOMEM;
93         acard->dev = pnp_request_card_device(card, id->devs[0].id, NULL);
94         if (acard->dev == NULL) {
95                 kfree(cfg);
96                 return -ENODEV;
97         }
98
99         pdev = acard->dev;
100
101         pnp_init_resource_table(cfg);
102
103         /* override resources */
104         if (port[dev] != SNDRV_AUTO_PORT)
105                 pnp_resource_change(&cfg->port_resource[0], port[dev], 16);
106         if (dma8[dev] != SNDRV_AUTO_DMA)
107                 pnp_resource_change(&cfg->dma_resource[0], dma8[dev], 1);
108         if (irq[dev] != SNDRV_AUTO_IRQ)
109                 pnp_resource_change(&cfg->irq_resource[0], irq[dev], 1);
110         if ((pnp_manual_config_dev(pdev, cfg, 0)) < 0)
111                 snd_printk(KERN_ERR PFX "AUDIO the requested resources are invalid, using auto config\n");
112         err = pnp_activate_dev(pdev);
113         if (err < 0) {
114                 snd_printk(KERN_ERR PFX "AUDIO pnp configure failure\n");
115                 kfree(cfg);
116                 return err;
117         }
118         port[dev] = pnp_port_start(pdev, 0);
119         dma8[dev] = pnp_dma(pdev, 1);
120         irq[dev] = pnp_irq(pdev, 0);
121
122         kfree(cfg);
123         return 0;
124 }
125
126 static int __init snd_card_es968_probe(int dev,
127                                         struct pnp_card_link *pcard,
128                                         const struct pnp_card_device_id *pid)
129 {
130         int error;
131         sb_t *chip;
132         snd_card_t *card;
133         struct snd_card_es968 *acard;
134
135         if ((card = snd_card_new(index[dev], id[dev], THIS_MODULE,
136                                  sizeof(struct snd_card_es968))) == NULL)
137                 return -ENOMEM;
138         acard = (struct snd_card_es968 *)card->private_data;
139         if ((error = snd_card_es968_pnp(dev, acard, pcard, pid))) {
140                 snd_card_free(card);
141                 return error;
142         }
143         snd_card_set_dev(card, &pcard->card->dev);
144
145         if ((error = snd_sbdsp_create(card, port[dev],
146                                       irq[dev],
147                                       snd_card_es968_interrupt,
148                                       dma8[dev],
149                                       -1,
150                                       SB_HW_AUTO, &chip)) < 0) {
151                 snd_card_free(card);
152                 return error;
153         }
154
155         if ((error = snd_sb8dsp_pcm(chip, 0, NULL)) < 0) {
156                 snd_card_free(card);
157                 return error;
158         }
159
160         if ((error = snd_sbmixer_new(chip)) < 0) {
161                 snd_card_free(card);
162                 return error;
163         }
164
165         if ((error = snd_sb8dsp_midi(chip, 0, NULL)) < 0) {
166                 snd_card_free(card);
167                 return error;
168         }
169
170         strcpy(card->driver, "ES968");
171         strcpy(card->shortname, "ESS ES968");
172         sprintf(card->longname, "%s soundcard, %s at 0x%lx, irq %d, dma %d",
173                 card->shortname, chip->name, chip->port, irq[dev], dma8[dev]);
174
175         if ((error = snd_card_register(card)) < 0) {
176                 snd_card_free(card);
177                 return error;
178         }
179         pnp_set_card_drvdata(pcard, card);
180         return 0;
181 }
182
183 static int __devinit snd_es968_pnp_detect(struct pnp_card_link *card,
184                                           const struct pnp_card_device_id *id)
185 {
186         static int dev;
187         int res;
188
189         for ( ; dev < SNDRV_CARDS; dev++) {
190                 if (!enable[dev])
191                         continue;
192                 res = snd_card_es968_probe(dev, card, id);
193                 if (res < 0)
194                         return res;
195                 dev++;
196                 return 0;
197         }
198         return -ENODEV;
199 }
200
201 static void __devexit snd_es968_pnp_remove(struct pnp_card_link * pcard)
202 {
203         snd_card_t *card = (snd_card_t *) pnp_get_card_drvdata(pcard);
204
205         snd_card_disconnect(card);
206         snd_card_free_in_thread(card);
207 }
208
209 static struct pnp_card_driver es968_pnpc_driver = {
210         .flags          = PNP_DRIVER_RES_DISABLE,
211         .name           = "es968",
212         .id_table       = snd_es968_pnpids,
213         .probe          = snd_es968_pnp_detect,
214         .remove         = __devexit_p(snd_es968_pnp_remove),
215 };
216
217 static int __init alsa_card_es968_init(void)
218 {
219         int cards = pnp_register_card_driver(&es968_pnpc_driver);
220 #ifdef MODULE
221         if (cards == 0) {
222                 pnp_unregister_card_driver(&es968_pnpc_driver);
223                 snd_printk(KERN_ERR "no ES968 based soundcards found\n");
224         }
225 #endif
226         return cards ? 0 : -ENODEV;
227 }
228
229 static void __exit alsa_card_es968_exit(void)
230 {
231         pnp_unregister_card_driver(&es968_pnpc_driver);
232 }
233
234 module_init(alsa_card_es968_init)
235 module_exit(alsa_card_es968_exit)