1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Driver for Sound Core PDAudioCF soundcard
5 * Copyright (c) 2003 by Jaroslav Kysela <perex@perex.cz>
8 #include <sound/core.h>
9 #include <linux/slab.h>
10 #include <linux/module.h>
11 #include <pcmcia/ciscode.h>
12 #include <pcmcia/cisreg.h>
13 #include "pdaudiocf.h"
14 #include <sound/initval.h>
15 #include <linux/init.h>
20 #define CARD_NAME "PDAudio-CF"
22 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
23 MODULE_DESCRIPTION("Sound Core " CARD_NAME);
24 MODULE_LICENSE("GPL");
26 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
27 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
28 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable switches */
30 module_param_array(index, int, NULL, 0444);
31 MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard.");
32 module_param_array(id, charp, NULL, 0444);
33 MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard.");
34 module_param_array(enable, bool, NULL, 0444);
35 MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard.");
40 static struct snd_card *card_list[SNDRV_CARDS];
45 static int pdacf_config(struct pcmcia_device *link);
46 static void snd_pdacf_detach(struct pcmcia_device *p_dev);
48 static void pdacf_release(struct pcmcia_device *link)
50 free_irq(link->irq, link->priv);
51 pcmcia_disable_device(link);
57 static int snd_pdacf_free(struct snd_pdacf *pdacf)
59 struct pcmcia_device *link = pdacf->p_dev;
63 card_list[pdacf->index] = NULL;
70 static int snd_pdacf_dev_free(struct snd_device *device)
72 struct snd_pdacf *chip = device->device_data;
73 return snd_pdacf_free(chip);
77 * snd_pdacf_attach - attach callback for cs
79 static int snd_pdacf_probe(struct pcmcia_device *link)
82 struct snd_pdacf *pdacf;
83 struct snd_card *card;
84 static const struct snd_device_ops ops = {
85 .dev_free = snd_pdacf_dev_free,
88 snd_printdd(KERN_DEBUG "pdacf_attach called\n");
89 /* find an empty slot from the card list */
90 for (i = 0; i < SNDRV_CARDS; i++) {
94 if (i >= SNDRV_CARDS) {
95 snd_printk(KERN_ERR "pdacf: too many cards found\n");
99 return -ENODEV; /* disabled explicitly */
101 /* ok, create a card instance */
102 err = snd_card_new(&link->dev, index[i], id[i], THIS_MODULE,
105 snd_printk(KERN_ERR "pdacf: cannot create a card instance\n");
109 pdacf = snd_pdacf_create(card);
115 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, pdacf, &ops);
128 link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
129 link->resource[0]->end = 16;
131 link->config_flags = CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ;
132 link->config_index = 1;
133 link->config_regs = PRESENT_OPTION;
135 return pdacf_config(link);
140 * snd_pdacf_assign_resources - initialize the hardware and card instance.
142 * @port: i/o port for the card
143 * @irq: irq number for the card
145 * this function assigns the specified port and irq, boot the card,
146 * create pcm and control instances, and initialize the rest hardware.
148 * returns 0 if successful, or a negative error code.
150 static int snd_pdacf_assign_resources(struct snd_pdacf *pdacf, int port, int irq)
153 struct snd_card *card = pdacf->card;
155 snd_printdd(KERN_DEBUG "pdacf assign resources: port = 0x%x, irq = %d\n", port, irq);
158 pdacf->chip_status |= PDAUDIOCF_STAT_IS_CONFIGURED;
160 err = snd_pdacf_ak4117_create(pdacf);
164 strcpy(card->driver, "PDAudio-CF");
165 sprintf(card->shortname, "Core Sound %s", card->driver);
166 sprintf(card->longname, "%s at 0x%x, irq %i",
167 card->shortname, port, irq);
169 err = snd_pdacf_pcm_new(pdacf);
173 err = snd_card_register(card);
182 * snd_pdacf_detach - detach callback for cs
184 static void snd_pdacf_detach(struct pcmcia_device *link)
186 struct snd_pdacf *chip = link->priv;
188 snd_printdd(KERN_DEBUG "pdacf_detach called\n");
190 if (chip->chip_status & PDAUDIOCF_STAT_IS_CONFIGURED)
191 snd_pdacf_powerdown(chip);
192 chip->chip_status |= PDAUDIOCF_STAT_IS_STALE; /* to be sure */
193 snd_card_disconnect(chip->card);
194 snd_card_free_when_closed(chip->card);
198 * configuration callback
201 static int pdacf_config(struct pcmcia_device *link)
203 struct snd_pdacf *pdacf = link->priv;
206 snd_printdd(KERN_DEBUG "pdacf_config called\n");
207 link->config_index = 0x5;
208 link->config_flags |= CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ;
210 ret = pcmcia_request_io(link);
214 ret = request_threaded_irq(link->irq, pdacf_interrupt,
216 IRQF_SHARED, link->devname, link->priv);
220 ret = pcmcia_enable_device(link);
224 if (snd_pdacf_assign_resources(pdacf, link->resource[0]->start,
228 pdacf->card->sync_irq = link->irq;
232 free_irq(link->irq, link->priv);
234 pcmcia_disable_device(link);
240 static int pdacf_suspend(struct pcmcia_device *link)
242 struct snd_pdacf *chip = link->priv;
244 snd_printdd(KERN_DEBUG "SUSPEND\n");
246 snd_printdd(KERN_DEBUG "snd_pdacf_suspend calling\n");
247 snd_pdacf_suspend(chip);
253 static int pdacf_resume(struct pcmcia_device *link)
255 struct snd_pdacf *chip = link->priv;
257 snd_printdd(KERN_DEBUG "RESUME\n");
258 if (pcmcia_dev_present(link)) {
260 snd_printdd(KERN_DEBUG "calling snd_pdacf_resume\n");
261 snd_pdacf_resume(chip);
264 snd_printdd(KERN_DEBUG "resume done!\n");
272 * Module entry points
274 static const struct pcmcia_device_id snd_pdacf_ids[] = {
275 /* this is too general PCMCIA_DEVICE_MANF_CARD(0x015d, 0x4c45), */
276 PCMCIA_DEVICE_PROD_ID12("Core Sound","PDAudio-CF",0x396d19d2,0x71717b49),
279 MODULE_DEVICE_TABLE(pcmcia, snd_pdacf_ids);
281 static struct pcmcia_driver pdacf_cs_driver = {
282 .owner = THIS_MODULE,
283 .name = "snd-pdaudiocf",
284 .probe = snd_pdacf_probe,
285 .remove = snd_pdacf_detach,
286 .id_table = snd_pdacf_ids,
288 .suspend = pdacf_suspend,
289 .resume = pdacf_resume,
292 module_pcmcia_driver(pdacf_cs_driver);