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, 1);
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 if ((card = snd_card_new(index[dev], id[dev], THIS_MODULE,
112 sizeof(struct snd_card_es968))) == NULL)
113 return -ENOMEM;
114 acard = card->private_data;
115 if ((error = snd_card_es968_pnp(dev, acard, pcard, pid))) {
116 snd_card_free(card);
117 return error;
118 }
119 snd_card_set_dev(card, &pcard->card->dev);
120
121 if ((error = snd_sbdsp_create(card, port[dev],
122 irq[dev],
123 snd_card_es968_interrupt,
124 dma8[dev],
125 -1,
126 SB_HW_AUTO, &chip)) < 0) {
127 snd_card_free(card);
128 return error;
129 }
130 acard->chip = chip;
131
132 if ((error = snd_sb8dsp_pcm(chip, 0, NULL)) < 0) {
133 snd_card_free(card);
134 return error;
135 }
136
137 if ((error = snd_sbmixer_new(chip)) < 0) {
138 snd_card_free(card);
139 return error;
140 }
141
142 if ((error = snd_sb8dsp_midi(chip, 0, NULL)) < 0) {
143 snd_card_free(card);
144 return error;
145 }
146
147 strcpy(card->driver, "ES968");
148 strcpy(card->shortname, "ESS ES968");
149 sprintf(card->longname, "%s soundcard, %s at 0x%lx, irq %d, dma %d",
150 card->shortname, chip->name, chip->port, irq[dev], dma8[dev]);
151
152 if ((error = snd_card_register(card)) < 0) {
153 snd_card_free(card);
154 return error;
155 }
156 pnp_set_card_drvdata(pcard, card);
157 return 0;
158 }
159
160 static unsigned int __devinitdata es968_devices;
161
162 static int __devinit snd_es968_pnp_detect(struct pnp_card_link *card,
163 const struct pnp_card_device_id *id)
164 {
165 static int dev;
166 int res;
167
168 for ( ; dev < SNDRV_CARDS; dev++) {
169 if (!enable[dev])
170 continue;
171 res = snd_card_es968_probe(dev, card, id);
172 if (res < 0)
173 return res;
174 dev++;
175 es968_devices++;
176 return 0;
177 }
178 return -ENODEV;
179 }
180
181 static void __devexit snd_es968_pnp_remove(struct pnp_card_link * pcard)
182 {
183 snd_card_free(pnp_get_card_drvdata(pcard));
184 pnp_set_card_drvdata(pcard, NULL);
185 }
186
187 #ifdef CONFIG_PM
188 static int snd_es968_pnp_suspend(struct pnp_card_link *pcard, pm_message_t state)
189 {
190 struct snd_card *card = pnp_get_card_drvdata(pcard);
191 struct snd_card_es968 *acard = card->private_data;
192 struct snd_sb *chip = acard->chip;
193
194 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
195 snd_pcm_suspend_all(chip->pcm);
196 snd_sbmixer_suspend(chip);
197 return 0;
198 }
199
200 static int snd_es968_pnp_resume(struct pnp_card_link *pcard)
201 {
202 struct snd_card *card = pnp_get_card_drvdata(pcard);
203 struct snd_card_es968 *acard = card->private_data;
204 struct snd_sb *chip = acard->chip;
205
206 snd_sbdsp_reset(chip);
207 snd_sbmixer_resume(chip);
208 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
209 return 0;
210 }
211 #endif
212
213 static struct pnp_card_driver es968_pnpc_driver = {
214 .flags = PNP_DRIVER_RES_DISABLE,
215 .name = "es968",
216 .id_table = snd_es968_pnpids,
217 .probe = snd_es968_pnp_detect,
218 .remove = __devexit_p(snd_es968_pnp_remove),
219 #ifdef CONFIG_PM
220 .suspend = snd_es968_pnp_suspend,
221 .resume = snd_es968_pnp_resume,
222 #endif
223 };
224
225 static int __init alsa_card_es968_init(void)
226 {
227 int err = pnp_register_card_driver(&es968_pnpc_driver);
228 if (err)
229 return err;
230
231 if (!es968_devices) {
232 pnp_unregister_card_driver(&es968_pnpc_driver);
233 #ifdef MODULE
234 snd_printk(KERN_ERR "no ES968 based soundcards found\n");
235 #endif
236 return -ENODEV;
237 }
238 return 0;
239 }
240
241 static void __exit alsa_card_es968_exit(void)
242 {
243 pnp_unregister_card_driver(&es968_pnpc_driver);
244 }
245
246 module_init(alsa_card_es968_init)
247 module_exit(alsa_card_es968_exit)
248
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