2 * Driver for Sound Core PDAudioCF soundcard
4 * Copyright (c) 2003 by Jaroslav Kysela <perex@suse.cz>
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.
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.
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
21 #include <sound/driver.h>
22 #include <sound/core.h>
23 #include <linux/slab.h>
24 #include <linux/moduleparam.h>
25 #include <pcmcia/ciscode.h>
26 #include <pcmcia/cisreg.h>
27 #include "pdaudiocf.h"
28 #include <sound/initval.h>
29 #include <linux/init.h>
34 #define CARD_NAME "PDAudio-CF"
36 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
37 MODULE_DESCRIPTION("Sound Core " CARD_NAME);
38 MODULE_LICENSE("GPL");
39 MODULE_SUPPORTED_DEVICE("{{Sound Core," CARD_NAME "}}");
41 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
42 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
43 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable switches */
45 module_param_array(index, int, NULL, 0444);
46 MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard.");
47 module_param_array(id, charp, NULL, 0444);
48 MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard.");
49 module_param_array(enable, bool, NULL, 0444);
50 MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard.");
55 static dev_info_t dev_info = "snd-pdaudiocf";
56 static struct snd_card *card_list[SNDRV_CARDS];
57 static dev_link_t *dev_list;
62 static void pdacf_config(dev_link_t *link);
63 static int pdacf_event(event_t event, int priority, event_callback_args_t *args);
64 static void snd_pdacf_detach(dev_link_t *link);
66 static void pdacf_release(dev_link_t *link)
68 if (link->state & DEV_CONFIG) {
69 /* release cs resources */
70 pcmcia_release_configuration(link->handle);
71 pcmcia_release_io(link->handle, &link->io);
72 pcmcia_release_irq(link->handle, &link->irq);
73 link->state &= ~DEV_CONFIG;
80 static int snd_pdacf_free(struct snd_pdacf *pdacf)
82 dev_link_t *link = &pdacf->link;
86 /* Break the link with Card Services */
88 pcmcia_deregister_client(link->handle);
90 card_list[pdacf->index] = NULL;
97 static int snd_pdacf_dev_free(struct snd_device *device)
99 struct snd_pdacf *chip = device->device_data;
100 return snd_pdacf_free(chip);
104 * snd_pdacf_attach - attach callback for cs
106 static dev_link_t *snd_pdacf_attach(void)
108 client_reg_t client_reg; /* Register with cardmgr */
109 dev_link_t *link; /* Info for cardmgr */
111 struct snd_pdacf *pdacf;
112 struct snd_card *card;
113 static struct snd_device_ops ops = {
114 .dev_free = snd_pdacf_dev_free,
117 snd_printdd(KERN_DEBUG "pdacf_attach called\n");
118 /* find an empty slot from the card list */
119 for (i = 0; i < SNDRV_CARDS; i++) {
123 if (i >= SNDRV_CARDS) {
124 snd_printk(KERN_ERR "pdacf: too many cards found\n");
128 return NULL; /* disabled explicitly */
130 /* ok, create a card instance */
131 card = snd_card_new(index[i], id[i], THIS_MODULE, 0);
133 snd_printk(KERN_ERR "pdacf: cannot create a card instance\n");
137 pdacf = snd_pdacf_create(card);
141 if (snd_device_new(card, SNDRV_DEV_LOWLEVEL, pdacf, &ops) < 0) {
153 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
154 link->io.NumPorts1 = 16;
156 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT | IRQ_FORCED_PULSE;
157 // link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED;
159 link->irq.IRQInfo1 = 0 /* | IRQ_LEVEL_ID */;
160 link->irq.Handler = pdacf_interrupt;
161 link->irq.Instance = pdacf;
162 link->conf.Attributes = CONF_ENABLE_IRQ;
163 link->conf.IntType = INT_MEMORY_AND_IO;
164 link->conf.ConfigIndex = 1;
165 link->conf.Present = PRESENT_OPTION;
168 link->next = dev_list;
171 /* Register with Card Services */
172 client_reg.dev_info = &dev_info;
173 client_reg.Version = 0x0210;
174 client_reg.event_callback_args.client_data = link;
176 ret = pcmcia_register_client(&link->handle, &client_reg);
177 if (ret != CS_SUCCESS) {
178 cs_error(link->handle, RegisterClient, ret);
179 snd_pdacf_detach(link);
188 * snd_pdacf_assign_resources - initialize the hardware and card instance.
189 * @port: i/o port for the card
190 * @irq: irq number for the card
192 * this function assigns the specified port and irq, boot the card,
193 * create pcm and control instances, and initialize the rest hardware.
195 * returns 0 if successful, or a negative error code.
197 static int snd_pdacf_assign_resources(struct snd_pdacf *pdacf, int port, int irq)
200 struct snd_card *card = pdacf->card;
202 snd_printdd(KERN_DEBUG "pdacf assign resources: port = 0x%x, irq = %d\n", port, irq);
205 pdacf->chip_status |= PDAUDIOCF_STAT_IS_CONFIGURED;
207 err = snd_pdacf_ak4117_create(pdacf);
211 strcpy(card->driver, "PDAudio-CF");
212 sprintf(card->shortname, "Core Sound %s", card->driver);
213 sprintf(card->longname, "%s at 0x%x, irq %i",
214 card->shortname, port, irq);
216 err = snd_pdacf_pcm_new(pdacf);
220 if ((err = snd_card_register(card)) < 0)
228 * snd_pdacf_detach - detach callback for cs
230 static void snd_pdacf_detach(dev_link_t *link)
232 struct snd_pdacf *chip = link->priv;
234 snd_printdd(KERN_DEBUG "pdacf_detach called\n");
235 /* Remove the interface data from the linked list */
238 /* Locate device structure */
239 for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
245 if (chip->chip_status & PDAUDIOCF_STAT_IS_CONFIGURED)
246 snd_pdacf_powerdown(chip);
247 chip->chip_status |= PDAUDIOCF_STAT_IS_STALE; /* to be sure */
248 snd_card_disconnect(chip->card);
249 snd_card_free_in_thread(chip->card);
253 * configuration callback
256 #define CS_CHECK(fn, ret) \
257 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
259 static void pdacf_config(dev_link_t *link)
261 client_handle_t handle = link->handle;
262 struct snd_pdacf *pdacf = link->priv;
264 cisparse_t *parse = NULL;
267 int last_fn, last_ret;
269 snd_printdd(KERN_DEBUG "pdacf_config called\n");
270 parse = kmalloc(sizeof(*parse), GFP_KERNEL);
272 snd_printk(KERN_ERR "pdacf_config: cannot allocate\n");
275 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
276 tuple.Attributes = 0;
277 tuple.TupleData = (cisdata_t *)buf;
278 tuple.TupleDataMax = sizeof(buf);
279 tuple.TupleOffset = 0;
280 tuple.DesiredTuple = CISTPL_CONFIG;
281 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
282 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
283 CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, parse));
284 link->conf.ConfigBase = parse->config.base;
285 link->conf.ConfigIndex = 0x5;
288 CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(handle, &conf));
289 link->conf.Vcc = conf.Vcc;
292 link->state |= DEV_CONFIG;
294 CS_CHECK(RequestIO, pcmcia_request_io(handle, &link->io));
295 CS_CHECK(RequestIRQ, pcmcia_request_irq(link->handle, &link->irq));
296 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link->handle, &link->conf));
298 if (snd_pdacf_assign_resources(pdacf, link->io.BasePort1, link->irq.AssignedIRQ) < 0)
301 link->dev = &pdacf->node;
302 link->state &= ~DEV_CONFIG_PENDING;
306 cs_error(link->handle, last_fn, last_ret);
308 pcmcia_release_configuration(link->handle);
309 pcmcia_release_io(link->handle, &link->io);
310 pcmcia_release_irq(link->handle, &link->irq);
316 static int pdacf_event(event_t event, int priority, event_callback_args_t *args)
318 dev_link_t *link = args->client_data;
319 struct snd_pdacf *chip = link->priv;
322 case CS_EVENT_CARD_REMOVAL:
323 snd_printdd(KERN_DEBUG "CARD_REMOVAL..\n");
324 link->state &= ~DEV_PRESENT;
325 if (link->state & DEV_CONFIG) {
326 chip->chip_status |= PDAUDIOCF_STAT_IS_STALE;
329 case CS_EVENT_CARD_INSERTION:
330 snd_printdd(KERN_DEBUG "CARD_INSERTION..\n");
331 link->state |= DEV_PRESENT;
335 case CS_EVENT_PM_SUSPEND:
336 snd_printdd(KERN_DEBUG "SUSPEND\n");
337 link->state |= DEV_SUSPEND;
339 snd_printdd(KERN_DEBUG "snd_pdacf_suspend calling\n");
340 snd_pdacf_suspend(chip, PMSG_SUSPEND);
342 /* Fall through... */
343 case CS_EVENT_RESET_PHYSICAL:
344 snd_printdd(KERN_DEBUG "RESET_PHYSICAL\n");
345 if (link->state & DEV_CONFIG)
346 pcmcia_release_configuration(link->handle);
348 case CS_EVENT_PM_RESUME:
349 snd_printdd(KERN_DEBUG "RESUME\n");
350 link->state &= ~DEV_SUSPEND;
351 /* Fall through... */
352 case CS_EVENT_CARD_RESET:
353 snd_printdd(KERN_DEBUG "CARD_RESET\n");
355 snd_printdd(KERN_DEBUG "requestconfig...\n");
356 pcmcia_request_configuration(link->handle, &link->conf);
358 snd_printdd(KERN_DEBUG "calling snd_pdacf_resume\n");
359 snd_pdacf_resume(chip);
362 snd_printdd(KERN_DEBUG "resume done!\n");
370 * Module entry points
372 static struct pcmcia_device_id snd_pdacf_ids[] = {
373 PCMCIA_DEVICE_MANF_CARD(0x015d, 0x4c45),
376 MODULE_DEVICE_TABLE(pcmcia, snd_pdacf_ids);
378 static struct pcmcia_driver pdacf_cs_driver = {
379 .owner = THIS_MODULE,
381 .name = "snd-pdaudiocf",
383 .attach = snd_pdacf_attach,
384 .event = pdacf_event,
385 .detach = snd_pdacf_detach,
386 .id_table = snd_pdacf_ids,
389 static int __init init_pdacf(void)
391 return pcmcia_register_driver(&pdacf_cs_driver);
394 static void __exit exit_pdacf(void)
396 pcmcia_unregister_driver(&pdacf_cs_driver);
397 BUG_ON(dev_list != NULL);
400 module_init(init_pdacf);
401 module_exit(exit_pdacf);