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/module.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 bool 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 free_irq(link->irq, link->priv);
65 pcmcia_disable_device(link);
66 }
67
68 /*
69 * destructor
70 */
71 static int snd_pdacf_free(struct snd_pdacf *pdacf)
72 {
73 struct pcmcia_device *link = pdacf->p_dev;
74
75 pdacf_release(link);
76
77 card_list[pdacf->index] = NULL;
78 pdacf->card = NULL;
79
80 kfree(pdacf);
81 return 0;
82 }
83
84 static int snd_pdacf_dev_free(struct snd_device *device)
85 {
86 struct snd_pdacf *chip = device->device_data;
87 return snd_pdacf_free(chip);
88 }
89
90 /*
91 * snd_pdacf_attach - attach callback for cs
92 */
93 static int snd_pdacf_probe(struct pcmcia_device *link)
94 {
95 int i, err;
96 struct snd_pdacf *pdacf;
97 struct snd_card *card;
98 static struct snd_device_ops ops = {
99 .dev_free = snd_pdacf_dev_free,
100 };
101
102 snd_printdd(KERN_DEBUG "pdacf_attach called\n");
103 /* find an empty slot from the card list */
104 for (i = 0; i < SNDRV_CARDS; i++) {
105 if (! card_list[i])
106 break;
107 }
108 if (i >= SNDRV_CARDS) {
109 snd_printk(KERN_ERR "pdacf: too many cards found\n");
110 return -EINVAL;
111 }
112 if (! enable[i])
113 return -ENODEV; /* disabled explicitly */
114
115 /* ok, create a card instance */
116 err = snd_card_new(&link->dev, index[i], id[i], THIS_MODULE,
117 0, &card);
118 if (err < 0) {
119 snd_printk(KERN_ERR "pdacf: cannot create a card instance\n");
120 return err;
121 }
122
123 pdacf = snd_pdacf_create(card);
124 if (!pdacf) {
125 snd_card_free(card);
126 return -ENOMEM;
127 }
128
129 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, pdacf, &ops);
130 if (err < 0) {
131 kfree(pdacf);
132 snd_card_free(card);
133 return err;
134 }
135
136 pdacf->index = i;
137 card_list[i] = card;
138
139 pdacf->p_dev = link;
140 link->priv = pdacf;
141
142 link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
143 link->resource[0]->end = 16;
144
145 link->config_flags = CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ;
146 link->config_index = 1;
147 link->config_regs = PRESENT_OPTION;
148
149 return pdacf_config(link);
150 }
151
152
153 /**
154 * snd_pdacf_assign_resources - initialize the hardware and card instance.
155 * @port: i/o port for the card
156 * @irq: irq number for the card
157 *
158 * this function assigns the specified port and irq, boot the card,
159 * create pcm and control instances, and initialize the rest hardware.
160 *
161 * returns 0 if successful, or a negative error code.
162 */
163 static int snd_pdacf_assign_resources(struct snd_pdacf *pdacf, int port, int irq)
164 {
165 int err;
166 struct snd_card *card = pdacf->card;
167
168 snd_printdd(KERN_DEBUG "pdacf assign resources: port = 0x%x, irq = %d\n", port, irq);
169 pdacf->port = port;
170 pdacf->irq = irq;
171 pdacf->chip_status |= PDAUDIOCF_STAT_IS_CONFIGURED;
172
173 err = snd_pdacf_ak4117_create(pdacf);
174 if (err < 0)
175 return err;
176
177 strcpy(card->driver, "PDAudio-CF");
178 sprintf(card->shortname, "Core Sound %s", card->driver);
179 sprintf(card->longname, "%s at 0x%x, irq %i",
180 card->shortname, port, irq);
181
182 err = snd_pdacf_pcm_new(pdacf);
183 if (err < 0)
184 return err;
185
186 if ((err = snd_card_register(card)) < 0)
187 return err;
188
189 return 0;
190 }
191
192
193 /*
194 * snd_pdacf_detach - detach callback for cs
195 */
196 static void snd_pdacf_detach(struct pcmcia_device *link)
197 {
198 struct snd_pdacf *chip = link->priv;
199
200 snd_printdd(KERN_DEBUG "pdacf_detach called\n");
201
202 if (chip->chip_status & PDAUDIOCF_STAT_IS_CONFIGURED)
203 snd_pdacf_powerdown(chip);
204 chip->chip_status |= PDAUDIOCF_STAT_IS_STALE; /* to be sure */
205 snd_card_disconnect(chip->card);
206 snd_card_free_when_closed(chip->card);
207 }
208
209 /*
210 * configuration callback
211 */
212
213 static int pdacf_config(struct pcmcia_device *link)
214 {
215 struct snd_pdacf *pdacf = link->priv;
216 int ret;
217
218 snd_printdd(KERN_DEBUG "pdacf_config called\n");
219 link->config_index = 0x5;
220 link->config_flags |= CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ;
221
222 ret = pcmcia_request_io(link);
223 if (ret)
224 goto failed_preirq;
225
226 ret = request_threaded_irq(link->irq, pdacf_interrupt,
227 pdacf_threaded_irq,
228 IRQF_SHARED, link->devname, link->priv);
229 if (ret)
230 goto failed_preirq;
231
232 ret = pcmcia_enable_device(link);
233 if (ret)
234 goto failed;
235
236 if (snd_pdacf_assign_resources(pdacf, link->resource[0]->start,
237 link->irq) < 0)
238 goto failed;
239
240 return 0;
241
242 failed:
243 free_irq(link->irq, link->priv);
244 failed_preirq:
245 pcmcia_disable_device(link);
246 return -ENODEV;
247 }
248
249 #ifdef CONFIG_PM
250
251 static int pdacf_suspend(struct pcmcia_device *link)
252 {
253 struct snd_pdacf *chip = link->priv;
254
255 snd_printdd(KERN_DEBUG "SUSPEND\n");
256 if (chip) {
257 snd_printdd(KERN_DEBUG "snd_pdacf_suspend calling\n");
258 snd_pdacf_suspend(chip);
259 }
260
261 return 0;
262 }
263
264 static int pdacf_resume(struct pcmcia_device *link)
265 {
266 struct snd_pdacf *chip = link->priv;
267
268 snd_printdd(KERN_DEBUG "RESUME\n");
269 if (pcmcia_dev_present(link)) {
270 if (chip) {
271 snd_printdd(KERN_DEBUG "calling snd_pdacf_resume\n");
272 snd_pdacf_resume(chip);
273 }
274 }
275 snd_printdd(KERN_DEBUG "resume done!\n");
276
277 return 0;
278 }
279
280 #endif
281
282 /*
283 * Module entry points
284 */
285 static const struct pcmcia_device_id snd_pdacf_ids[] = {
286 /* this is too general PCMCIA_DEVICE_MANF_CARD(0x015d, 0x4c45), */
287 PCMCIA_DEVICE_PROD_ID12("Core Sound","PDAudio-CF",0x396d19d2,0x71717b49),
288 PCMCIA_DEVICE_NULL
289 };
290 MODULE_DEVICE_TABLE(pcmcia, snd_pdacf_ids);
291
292 static struct pcmcia_driver pdacf_cs_driver = {
293 .owner = THIS_MODULE,
294 .name = "snd-pdaudiocf",
295 .probe = snd_pdacf_probe,
296 .remove = snd_pdacf_detach,
297 .id_table = snd_pdacf_ids,
298 #ifdef CONFIG_PM
299 .suspend = pdacf_suspend,
300 .resume = pdacf_resume,
301 #endif
302 };
303 module_pcmcia_driver(pdacf_cs_driver);
304
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