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1da177e4 LT |
1 | /* |
2 | * Driver for Sound Core PDAudioCF soundcard | |
3 | * | |
4 | * Copyright (c) 2003 by Jaroslav Kysela <perex@suse.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/driver.h> | |
22 | #include <sound/core.h> | |
23 | #include <linux/slab.h> | |
24 | #include <linux/moduleparam.h> | |
1da177e4 LT |
25 | #include <pcmcia/ciscode.h> |
26 | #include <pcmcia/cisreg.h> | |
27 | #include "pdaudiocf.h" | |
28 | #include <sound/initval.h> | |
29 | #include <linux/init.h> | |
30 | ||
31 | /* | |
32 | */ | |
33 | ||
34 | #define CARD_NAME "PDAudio-CF" | |
35 | ||
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 "}}"); | |
40 | ||
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 */ | |
44 | ||
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."); | |
51 | ||
52 | /* | |
53 | */ | |
54 | ||
55 | static dev_info_t dev_info = "snd-pdaudiocf"; | |
56 | static snd_card_t *card_list[SNDRV_CARDS]; | |
57 | static dev_link_t *dev_list; | |
58 | ||
59 | /* | |
60 | * prototypes | |
61 | */ | |
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); | |
65 | ||
66 | static void pdacf_release(dev_link_t *link) | |
67 | { | |
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; | |
74 | } | |
75 | } | |
76 | ||
77 | /* | |
78 | * destructor | |
79 | */ | |
80 | static int snd_pdacf_free(pdacf_t *pdacf) | |
81 | { | |
82 | dev_link_t *link = &pdacf->link; | |
83 | ||
84 | pdacf_release(link); | |
85 | ||
86 | /* Break the link with Card Services */ | |
87 | if (link->handle) | |
88 | pcmcia_deregister_client(link->handle); | |
89 | ||
90 | card_list[pdacf->index] = NULL; | |
91 | pdacf->card = NULL; | |
92 | ||
93 | kfree(pdacf); | |
94 | return 0; | |
95 | } | |
96 | ||
97 | static int snd_pdacf_dev_free(snd_device_t *device) | |
98 | { | |
99 | pdacf_t *chip = device->device_data; | |
100 | return snd_pdacf_free(chip); | |
101 | } | |
102 | ||
103 | /* | |
104 | * snd_pdacf_attach - attach callback for cs | |
105 | */ | |
106 | static dev_link_t *snd_pdacf_attach(void) | |
107 | { | |
108 | client_reg_t client_reg; /* Register with cardmgr */ | |
109 | dev_link_t *link; /* Info for cardmgr */ | |
110 | int i, ret; | |
111 | pdacf_t *pdacf; | |
112 | snd_card_t *card; | |
113 | static snd_device_ops_t ops = { | |
114 | .dev_free = snd_pdacf_dev_free, | |
115 | }; | |
116 | ||
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++) { | |
120 | if (! card_list[i]) | |
121 | break; | |
122 | } | |
123 | if (i >= SNDRV_CARDS) { | |
124 | snd_printk(KERN_ERR "pdacf: too many cards found\n"); | |
125 | return NULL; | |
126 | } | |
127 | if (! enable[i]) | |
128 | return NULL; /* disabled explicitly */ | |
129 | ||
130 | /* ok, create a card instance */ | |
131 | card = snd_card_new(index[i], id[i], THIS_MODULE, 0); | |
132 | if (card == NULL) { | |
133 | snd_printk(KERN_ERR "pdacf: cannot create a card instance\n"); | |
134 | return NULL; | |
135 | } | |
136 | ||
137 | pdacf = snd_pdacf_create(card); | |
138 | if (! pdacf) | |
139 | return NULL; | |
140 | ||
141 | if (snd_device_new(card, SNDRV_DEV_LOWLEVEL, pdacf, &ops) < 0) { | |
142 | kfree(pdacf); | |
143 | snd_card_free(card); | |
144 | return NULL; | |
145 | } | |
146 | ||
147 | pdacf->index = i; | |
148 | card_list[i] = card; | |
149 | ||
150 | link = &pdacf->link; | |
151 | link->priv = pdacf; | |
152 | ||
153 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; | |
154 | link->io.NumPorts1 = 16; | |
155 | ||
156 | link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT | IRQ_FORCED_PULSE; | |
157 | // link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED; | |
158 | ||
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; | |
166 | ||
167 | /* Chain drivers */ | |
168 | link->next = dev_list; | |
169 | dev_list = link; | |
170 | ||
171 | /* Register with Card Services */ | |
172 | client_reg.dev_info = &dev_info; | |
1da177e4 LT |
173 | client_reg.Version = 0x0210; |
174 | client_reg.event_callback_args.client_data = link; | |
175 | ||
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); | |
180 | return NULL; | |
181 | } | |
182 | ||
183 | return link; | |
184 | } | |
185 | ||
186 | ||
187 | /** | |
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 | |
191 | * | |
192 | * this function assigns the specified port and irq, boot the card, | |
193 | * create pcm and control instances, and initialize the rest hardware. | |
194 | * | |
195 | * returns 0 if successful, or a negative error code. | |
196 | */ | |
197 | static int snd_pdacf_assign_resources(pdacf_t *pdacf, int port, int irq) | |
198 | { | |
199 | int err; | |
200 | snd_card_t *card = pdacf->card; | |
201 | ||
202 | snd_printdd(KERN_DEBUG "pdacf assign resources: port = 0x%x, irq = %d\n", port, irq); | |
203 | pdacf->port = port; | |
204 | pdacf->irq = irq; | |
205 | pdacf->chip_status |= PDAUDIOCF_STAT_IS_CONFIGURED; | |
206 | ||
207 | err = snd_pdacf_ak4117_create(pdacf); | |
208 | if (err < 0) | |
209 | return err; | |
210 | ||
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); | |
215 | ||
216 | err = snd_pdacf_pcm_new(pdacf); | |
217 | if (err < 0) | |
218 | return err; | |
219 | ||
220 | snd_card_set_pm_callback(card, snd_pdacf_suspend, snd_pdacf_resume, pdacf); | |
221 | ||
222 | if ((err = snd_card_register(card)) < 0) | |
223 | return err; | |
224 | ||
225 | return 0; | |
226 | } | |
227 | ||
228 | ||
229 | /* | |
230 | * snd_pdacf_detach - detach callback for cs | |
231 | */ | |
232 | static void snd_pdacf_detach(dev_link_t *link) | |
233 | { | |
234 | pdacf_t *chip = link->priv; | |
235 | ||
236 | snd_printdd(KERN_DEBUG "pdacf_detach called\n"); | |
237 | /* Remove the interface data from the linked list */ | |
238 | { | |
239 | dev_link_t **linkp; | |
240 | /* Locate device structure */ | |
241 | for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next) | |
242 | if (*linkp == link) | |
243 | break; | |
244 | if (*linkp) | |
245 | *linkp = link->next; | |
246 | } | |
247 | if (chip->chip_status & PDAUDIOCF_STAT_IS_CONFIGURED) | |
248 | snd_pdacf_powerdown(chip); | |
249 | chip->chip_status |= PDAUDIOCF_STAT_IS_STALE; /* to be sure */ | |
250 | snd_card_disconnect(chip->card); | |
251 | snd_card_free_in_thread(chip->card); | |
252 | } | |
253 | ||
254 | /* | |
255 | * configuration callback | |
256 | */ | |
257 | ||
258 | #define CS_CHECK(fn, ret) \ | |
259 | do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) | |
260 | ||
261 | static void pdacf_config(dev_link_t *link) | |
262 | { | |
263 | client_handle_t handle = link->handle; | |
264 | pdacf_t *pdacf = link->priv; | |
265 | tuple_t tuple; | |
266 | cisparse_t *parse = NULL; | |
267 | config_info_t conf; | |
268 | u_short buf[32]; | |
269 | int last_fn, last_ret; | |
270 | ||
271 | snd_printdd(KERN_DEBUG "pdacf_config called\n"); | |
272 | parse = kmalloc(sizeof(*parse), GFP_KERNEL); | |
273 | if (! parse) { | |
274 | snd_printk(KERN_ERR "pdacf_config: cannot allocate\n"); | |
275 | return; | |
276 | } | |
277 | tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; | |
278 | tuple.Attributes = 0; | |
279 | tuple.TupleData = (cisdata_t *)buf; | |
280 | tuple.TupleDataMax = sizeof(buf); | |
281 | tuple.TupleOffset = 0; | |
282 | tuple.DesiredTuple = CISTPL_CONFIG; | |
283 | CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple)); | |
284 | CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple)); | |
285 | CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, parse)); | |
286 | link->conf.ConfigBase = parse->config.base; | |
287 | link->conf.ConfigIndex = 0x5; | |
288 | kfree(parse); | |
289 | ||
290 | CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(handle, &conf)); | |
291 | link->conf.Vcc = conf.Vcc; | |
292 | ||
293 | /* Configure card */ | |
294 | link->state |= DEV_CONFIG; | |
295 | ||
296 | CS_CHECK(RequestIO, pcmcia_request_io(handle, &link->io)); | |
297 | CS_CHECK(RequestIRQ, pcmcia_request_irq(link->handle, &link->irq)); | |
298 | CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link->handle, &link->conf)); | |
299 | ||
300 | if (snd_pdacf_assign_resources(pdacf, link->io.BasePort1, link->irq.AssignedIRQ) < 0) | |
301 | goto failed; | |
302 | ||
303 | link->dev = &pdacf->node; | |
304 | link->state &= ~DEV_CONFIG_PENDING; | |
305 | return; | |
306 | ||
307 | cs_failed: | |
308 | cs_error(link->handle, last_fn, last_ret); | |
309 | failed: | |
310 | pcmcia_release_configuration(link->handle); | |
311 | pcmcia_release_io(link->handle, &link->io); | |
312 | pcmcia_release_irq(link->handle, &link->irq); | |
313 | } | |
314 | ||
315 | /* | |
316 | * event callback | |
317 | */ | |
318 | static int pdacf_event(event_t event, int priority, event_callback_args_t *args) | |
319 | { | |
320 | dev_link_t *link = args->client_data; | |
321 | pdacf_t *chip = link->priv; | |
322 | ||
323 | switch (event) { | |
324 | case CS_EVENT_CARD_REMOVAL: | |
325 | snd_printdd(KERN_DEBUG "CARD_REMOVAL..\n"); | |
326 | link->state &= ~DEV_PRESENT; | |
327 | if (link->state & DEV_CONFIG) { | |
328 | chip->chip_status |= PDAUDIOCF_STAT_IS_STALE; | |
329 | } | |
330 | break; | |
331 | case CS_EVENT_CARD_INSERTION: | |
332 | snd_printdd(KERN_DEBUG "CARD_INSERTION..\n"); | |
333 | link->state |= DEV_PRESENT; | |
334 | pdacf_config(link); | |
335 | break; | |
336 | #ifdef CONFIG_PM | |
337 | case CS_EVENT_PM_SUSPEND: | |
338 | snd_printdd(KERN_DEBUG "SUSPEND\n"); | |
339 | link->state |= DEV_SUSPEND; | |
340 | if (chip) { | |
341 | snd_printdd(KERN_DEBUG "snd_pdacf_suspend calling\n"); | |
342 | snd_pdacf_suspend(chip->card, PMSG_SUSPEND); | |
343 | } | |
344 | /* Fall through... */ | |
345 | case CS_EVENT_RESET_PHYSICAL: | |
346 | snd_printdd(KERN_DEBUG "RESET_PHYSICAL\n"); | |
347 | if (link->state & DEV_CONFIG) | |
348 | pcmcia_release_configuration(link->handle); | |
349 | break; | |
350 | case CS_EVENT_PM_RESUME: | |
351 | snd_printdd(KERN_DEBUG "RESUME\n"); | |
352 | link->state &= ~DEV_SUSPEND; | |
353 | /* Fall through... */ | |
354 | case CS_EVENT_CARD_RESET: | |
355 | snd_printdd(KERN_DEBUG "CARD_RESET\n"); | |
356 | if (DEV_OK(link)) { | |
357 | snd_printdd(KERN_DEBUG "requestconfig...\n"); | |
358 | pcmcia_request_configuration(link->handle, &link->conf); | |
359 | if (chip) { | |
360 | snd_printdd(KERN_DEBUG "calling snd_pdacf_resume\n"); | |
361 | snd_pdacf_resume(chip->card); | |
362 | } | |
363 | } | |
364 | snd_printdd(KERN_DEBUG "resume done!\n"); | |
365 | break; | |
366 | #endif | |
367 | } | |
368 | return 0; | |
369 | } | |
370 | ||
371 | /* | |
372 | * Module entry points | |
373 | */ | |
a4ed3598 DB |
374 | static struct pcmcia_device_id snd_pdacf_ids[] = { |
375 | PCMCIA_DEVICE_MANF_CARD(0x015d, 0x4c45), | |
376 | PCMCIA_DEVICE_NULL | |
377 | }; | |
378 | MODULE_DEVICE_TABLE(pcmcia, snd_pdacf_ids); | |
379 | ||
1da177e4 | 380 | static struct pcmcia_driver pdacf_cs_driver = { |
1e212f36 DB |
381 | .owner = THIS_MODULE, |
382 | .drv = { | |
383 | .name = "snd-pdaudiocf", | |
1da177e4 | 384 | }, |
1e212f36 DB |
385 | .attach = snd_pdacf_attach, |
386 | .event = pdacf_event, | |
387 | .detach = snd_pdacf_detach, | |
a4ed3598 | 388 | .id_table = snd_pdacf_ids, |
1da177e4 LT |
389 | }; |
390 | ||
391 | static int __init init_pdacf(void) | |
392 | { | |
393 | return pcmcia_register_driver(&pdacf_cs_driver); | |
394 | } | |
395 | ||
396 | static void __exit exit_pdacf(void) | |
397 | { | |
398 | pcmcia_unregister_driver(&pdacf_cs_driver); | |
399 | BUG_ON(dev_list != NULL); | |
400 | } | |
401 | ||
402 | module_init(init_pdacf); | |
403 | module_exit(exit_pdacf); |