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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, &link->dev); |
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; |
225 | |
226 | ret = pcmcia_request_irq(link, pdacf_interrupt); |
227 | if (ret) |
228 | goto failed; |
229 | |
230 | ret = pcmcia_enable_device(link); |
231 | if (ret) |
232 | goto failed; |
233 | |
234 | if (snd_pdacf_assign_resources(pdacf, link->resource[0]->start, |
235 | link->irq) < 0) |
236 | goto failed; |
237 | |
238 | return 0; |
239 | |
240 | failed: |
241 | pcmcia_disable_device(link); |
242 | return -ENODEV; |
243 | } |
244 | |
245 | #ifdef CONFIG_PM |
246 | |
247 | static int pdacf_suspend(struct pcmcia_device *link) |
248 | { |
249 | struct snd_pdacf *chip = link->priv; |
250 | |
251 | snd_printdd(KERN_DEBUG "SUSPEND\n"); |
252 | if (chip) { |
253 | snd_printdd(KERN_DEBUG "snd_pdacf_suspend calling\n"); |
254 | snd_pdacf_suspend(chip, PMSG_SUSPEND); |
255 | } |
256 | |
257 | return 0; |
258 | } |
259 | |
260 | static int pdacf_resume(struct pcmcia_device *link) |
261 | { |
262 | struct snd_pdacf *chip = link->priv; |
263 | |
264 | snd_printdd(KERN_DEBUG "RESUME\n"); |
265 | if (pcmcia_dev_present(link)) { |
266 | if (chip) { |
267 | snd_printdd(KERN_DEBUG "calling snd_pdacf_resume\n"); |
268 | snd_pdacf_resume(chip); |
269 | } |
270 | } |
271 | snd_printdd(KERN_DEBUG "resume done!\n"); |
272 | |
273 | return 0; |
274 | } |
275 | |
276 | #endif |
277 | |
278 | /* |
279 | * Module entry points |
280 | */ |
281 | static const struct pcmcia_device_id snd_pdacf_ids[] = { |
282 | /* this is too general PCMCIA_DEVICE_MANF_CARD(0x015d, 0x4c45), */ |
283 | PCMCIA_DEVICE_PROD_ID12("Core Sound","PDAudio-CF",0x396d19d2,0x71717b49), |
284 | PCMCIA_DEVICE_NULL |
285 | }; |
286 | MODULE_DEVICE_TABLE(pcmcia, snd_pdacf_ids); |
287 | |
288 | static struct pcmcia_driver pdacf_cs_driver = { |
289 | .owner = THIS_MODULE, |
290 | .name = "snd-pdaudiocf", |
291 | .probe = snd_pdacf_probe, |
292 | .remove = snd_pdacf_detach, |
293 | .id_table = snd_pdacf_ids, |
294 | #ifdef CONFIG_PM |
295 | .suspend = pdacf_suspend, |
296 | .resume = pdacf_resume, |
297 | #endif |
298 | |
299 | }; |
300 | |
301 | static int __init init_pdacf(void) |
302 | { |
303 | return pcmcia_register_driver(&pdacf_cs_driver); |
304 | } |
305 | |
306 | static void __exit exit_pdacf(void) |
307 | { |
308 | pcmcia_unregister_driver(&pdacf_cs_driver); |
309 | } |
310 | |
311 | module_init(init_pdacf); |
312 | module_exit(exit_pdacf); |
313 |
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