1 /*
2 * Driver for Sound Core PDAudioCF soundcard
3 *
4 * Copyright (c) 2003 by Jaroslav Kysela <perex@perex.cz>
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 #include <sound/core.h>
22 #include <linux/slab.h>
23 #include <linux/moduleparam.h>
24 #include <pcmcia/ciscode.h>
25 #include <pcmcia/cisreg.h>
26 #include "pdaudiocf.h"
27 #include <sound/initval.h>
28 #include <linux/init.h>
29
30 /*
31 */
32
33 #define CARD_NAME "PDAudio-CF"
34
35 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
36 MODULE_DESCRIPTION("Sound Core " CARD_NAME);
37 MODULE_LICENSE("GPL");
38 MODULE_SUPPORTED_DEVICE("{{Sound Core," CARD_NAME "}}");
39
40 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
41 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
42 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable switches */
43
44 module_param_array(index, int, NULL, 0444);
45 MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard.");
46 module_param_array(id, charp, NULL, 0444);
47 MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard.");
48 module_param_array(enable, bool, NULL, 0444);
49 MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard.");
50
51 /*
52 */
53
54 static struct snd_card *card_list[SNDRV_CARDS];
55
56 /*
57 * prototypes
58 */
59 static int pdacf_config(struct pcmcia_device *link);
60 static void snd_pdacf_detach(struct pcmcia_device *p_dev);
61
62 static void pdacf_release(struct pcmcia_device *link)
63 {
64 pcmcia_disable_device(link);
65 }
66
67 /*
68 * destructor
69 */
70 static int snd_pdacf_free(struct snd_pdacf *pdacf)
71 {
72 struct pcmcia_device *link = pdacf->p_dev;
73
74 pdacf_release(link);
75
76 card_list[pdacf->index] = NULL;
77 pdacf->card = NULL;
78
79 kfree(pdacf);
80 return 0;
81 }
82
83 static int snd_pdacf_dev_free(struct snd_device *device)
84 {
85 struct snd_pdacf *chip = device->device_data;
86 return snd_pdacf_free(chip);
87 }
88
89 /*
90 * snd_pdacf_attach - attach callback for cs
91 */
92 static int snd_pdacf_probe(struct pcmcia_device *link)
93 {
94 int i, err;
95 struct snd_pdacf *pdacf;
96 struct snd_card *card;
97 static struct snd_device_ops ops = {
98 .dev_free = snd_pdacf_dev_free,
99 };
100
101 snd_printdd(KERN_DEBUG "pdacf_attach called\n");
102 /* find an empty slot from the card list */
103 for (i = 0; i < SNDRV_CARDS; i++) {
104 if (! card_list[i])
105 break;
106 }
107 if (i >= SNDRV_CARDS) {
108 snd_printk(KERN_ERR "pdacf: too many cards found\n");
109 return -EINVAL;
110 }
111 if (! enable[i])
112 return -ENODEV; /* disabled explicitly */
113
114 /* ok, create a card instance */
115 err = snd_card_create(index[i], id[i], THIS_MODULE, 0, &card);
116 if (err < 0) {
117 snd_printk(KERN_ERR "pdacf: cannot create a card instance\n");
118 return err;
119 }
120
121 pdacf = snd_pdacf_create(card);
122 if (!pdacf) {
123 snd_card_free(card);
124 return -ENOMEM;
125 }
126
127 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, pdacf, &ops);
128 if (err < 0) {
129 kfree(pdacf);
130 snd_card_free(card);
131 return err;
132 }
133
134 snd_card_set_dev(card, &handle_to_dev(link));
135
136 pdacf->index = i;
137 card_list[i] = card;
138
139 pdacf->p_dev = link;
140 link->priv = pdacf;
141
142 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
143 link->io.NumPorts1 = 16;
144
145 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT | IRQ_FORCED_PULSE;
146 // link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED;
147
148 link->irq.IRQInfo1 = 0 /* | IRQ_LEVEL_ID */;
149 link->irq.Handler = pdacf_interrupt;
150 link->irq.Instance = pdacf;
151 link->conf.Attributes = CONF_ENABLE_IRQ;
152 link->conf.IntType = INT_MEMORY_AND_IO;
153 link->conf.ConfigIndex = 1;
154 link->conf.Present = PRESENT_OPTION;
155
156 return pdacf_config(link);
157 }
158
159
160 /**
161 * snd_pdacf_assign_resources - initialize the hardware and card instance.
162 * @port: i/o port for the card
163 * @irq: irq number for the card
164 *
165 * this function assigns the specified port and irq, boot the card,
166 * create pcm and control instances, and initialize the rest hardware.
167 *
168 * returns 0 if successful, or a negative error code.
169 */
170 static int snd_pdacf_assign_resources(struct snd_pdacf *pdacf, int port, int irq)
171 {
172 int err;
173 struct snd_card *card = pdacf->card;
174
175 snd_printdd(KERN_DEBUG "pdacf assign resources: port = 0x%x, irq = %d\n", port, irq);
176 pdacf->port = port;
177 pdacf->irq = irq;
178 pdacf->chip_status |= PDAUDIOCF_STAT_IS_CONFIGURED;
179
180 err = snd_pdacf_ak4117_create(pdacf);
181 if (err < 0)
182 return err;
183
184 strcpy(card->driver, "PDAudio-CF");
185 sprintf(card->shortname, "Core Sound %s", card->driver);
186 sprintf(card->longname, "%s at 0x%x, irq %i",
187 card->shortname, port, irq);
188
189 err = snd_pdacf_pcm_new(pdacf);
190 if (err < 0)
191 return err;
192
193 if ((err = snd_card_register(card)) < 0)
194 return err;
195
196 return 0;
197 }
198
199
200 /*
201 * snd_pdacf_detach - detach callback for cs
202 */
203 static void snd_pdacf_detach(struct pcmcia_device *link)
204 {
205 struct snd_pdacf *chip = link->priv;
206
207 snd_printdd(KERN_DEBUG "pdacf_detach called\n");
208
209 if (chip->chip_status & PDAUDIOCF_STAT_IS_CONFIGURED)
210 snd_pdacf_powerdown(chip);
211 chip->chip_status |= PDAUDIOCF_STAT_IS_STALE; /* to be sure */
212 snd_card_disconnect(chip->card);
213 snd_card_free_when_closed(chip->card);
214 }
215
216 /*
217 * configuration callback
218 */
219
220 #define CS_CHECK(fn, ret) \
221 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
222
223 static int pdacf_config(struct pcmcia_device *link)
224 {
225 struct snd_pdacf *pdacf = link->priv;
226 int last_fn, last_ret;
227
228 snd_printdd(KERN_DEBUG "pdacf_config called\n");
229 link->conf.ConfigIndex = 0x5;
230
231 CS_CHECK(RequestIO, pcmcia_request_io(link, &link->io));
232 CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
233 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
234
235 if (snd_pdacf_assign_resources(pdacf, link->io.BasePort1, link->irq.AssignedIRQ) < 0)
236 goto failed;
237
238 link->dev_node = &pdacf->node;
239 return 0;
240
241 cs_failed:
242 cs_error(link, last_fn, last_ret);
243 failed:
244 pcmcia_disable_device(link);
245 return -ENODEV;
246 }
247
248 #ifdef CONFIG_PM
249
250 static int pdacf_suspend(struct pcmcia_device *link)
251 {
252 struct snd_pdacf *chip = link->priv;
253
254 snd_printdd(KERN_DEBUG "SUSPEND\n");
255 if (chip) {
256 snd_printdd(KERN_DEBUG "snd_pdacf_suspend calling\n");
257 snd_pdacf_suspend(chip, PMSG_SUSPEND);
258 }
259
260 return 0;
261 }
262
263 static int pdacf_resume(struct pcmcia_device *link)
264 {
265 struct snd_pdacf *chip = link->priv;
266
267 snd_printdd(KERN_DEBUG "RESUME\n");
268 if (pcmcia_dev_present(link)) {
269 if (chip) {
270 snd_printdd(KERN_DEBUG "calling snd_pdacf_resume\n");
271 snd_pdacf_resume(chip);
272 }
273 }
274 snd_printdd(KERN_DEBUG "resume done!\n");
275
276 return 0;
277 }
278
279 #endif
280
281 /*
282 * Module entry points
283 */
284 static struct pcmcia_device_id snd_pdacf_ids[] = {
285 /* this is too general PCMCIA_DEVICE_MANF_CARD(0x015d, 0x4c45), */
286 PCMCIA_DEVICE_PROD_ID12("Core Sound","PDAudio-CF",0x396d19d2,0x71717b49),
287 PCMCIA_DEVICE_NULL
288 };
289 MODULE_DEVICE_TABLE(pcmcia, snd_pdacf_ids);
290
291 static struct pcmcia_driver pdacf_cs_driver = {
292 .owner = THIS_MODULE,
293 .drv = {
294 .name = "snd-pdaudiocf",
295 },
296 .probe = snd_pdacf_probe,
297 .remove = snd_pdacf_detach,
298 .id_table = snd_pdacf_ids,
299 #ifdef CONFIG_PM
300 .suspend = pdacf_suspend,
301 .resume = pdacf_resume,
302 #endif
303
304 };
305
306 static int __init init_pdacf(void)
307 {
308 return pcmcia_register_driver(&pdacf_cs_driver);
309 }
310
311 static void __exit exit_pdacf(void)
312 {
313 pcmcia_unregister_driver(&pdacf_cs_driver);
314 }
315
316 module_init(init_pdacf);
317 module_exit(exit_pdacf);
318
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