--- /dev/null
+/*
+ * Driver for Sound Core PDAudioCF soundcard
+ *
+ * Copyright (c) 2003 by Jaroslav Kysela <perex@perex.cz>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <sound/core.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <pcmcia/ciscode.h>
+#include <pcmcia/cisreg.h>
+#include "pdaudiocf.h"
+#include <sound/initval.h>
+#include <linux/init.h>
+
+/*
+ */
+
+#define CARD_NAME "PDAudio-CF"
+
+MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
+MODULE_DESCRIPTION("Sound Core " CARD_NAME);
+MODULE_LICENSE("GPL");
+MODULE_SUPPORTED_DEVICE("{{Sound Core," CARD_NAME "}}");
+
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
+static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
+static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable switches */
+
+module_param_array(index, int, NULL, 0444);
+MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard.");
+module_param_array(id, charp, NULL, 0444);
+MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard.");
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard.");
+
+/*
+ */
+
+static struct snd_card *card_list[SNDRV_CARDS];
+
+/*
+ * prototypes
+ */
+static int pdacf_config(struct pcmcia_device *link);
+static void snd_pdacf_detach(struct pcmcia_device *p_dev);
+
+static void pdacf_release(struct pcmcia_device *link)
+{
+ free_irq(link->irq, link->priv);
+ pcmcia_disable_device(link);
+}
+
+/*
+ * destructor
+ */
+static int snd_pdacf_free(struct snd_pdacf *pdacf)
+{
+ struct pcmcia_device *link = pdacf->p_dev;
+
+ pdacf_release(link);
+
+ card_list[pdacf->index] = NULL;
+ pdacf->card = NULL;
+
+ kfree(pdacf);
+ return 0;
+}
+
+static int snd_pdacf_dev_free(struct snd_device *device)
+{
+ struct snd_pdacf *chip = device->device_data;
+ return snd_pdacf_free(chip);
+}
+
+/*
+ * snd_pdacf_attach - attach callback for cs
+ */
+static int snd_pdacf_probe(struct pcmcia_device *link)
+{
+ int i, err;
+ struct snd_pdacf *pdacf;
+ struct snd_card *card;
+ static struct snd_device_ops ops = {
+ .dev_free = snd_pdacf_dev_free,
+ };
+
+ snd_printdd(KERN_DEBUG "pdacf_attach called\n");
+ /* find an empty slot from the card list */
+ for (i = 0; i < SNDRV_CARDS; i++) {
+ if (! card_list[i])
+ break;
+ }
+ if (i >= SNDRV_CARDS) {
+ snd_printk(KERN_ERR "pdacf: too many cards found\n");
+ return -EINVAL;
+ }
+ if (! enable[i])
+ return -ENODEV; /* disabled explicitly */
+
+ /* ok, create a card instance */
+ err = snd_card_new(&link->dev, index[i], id[i], THIS_MODULE,
+ 0, &card);
+ if (err < 0) {
+ snd_printk(KERN_ERR "pdacf: cannot create a card instance\n");
+ return err;
+ }
+
+ pdacf = snd_pdacf_create(card);
+ if (!pdacf) {
+ snd_card_free(card);
+ return -ENOMEM;
+ }
+
+ err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, pdacf, &ops);
+ if (err < 0) {
+ kfree(pdacf);
+ snd_card_free(card);
+ return err;
+ }
+
+ pdacf->index = i;
+ card_list[i] = card;
+
+ pdacf->p_dev = link;
+ link->priv = pdacf;
+
+ link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
+ link->resource[0]->end = 16;
+
+ link->config_flags = CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ;
+ link->config_index = 1;
+ link->config_regs = PRESENT_OPTION;
+
+ return pdacf_config(link);
+}
+
+
+/**
+ * snd_pdacf_assign_resources - initialize the hardware and card instance.
+ * @port: i/o port for the card
+ * @irq: irq number for the card
+ *
+ * this function assigns the specified port and irq, boot the card,
+ * create pcm and control instances, and initialize the rest hardware.
+ *
+ * returns 0 if successful, or a negative error code.
+ */
+static int snd_pdacf_assign_resources(struct snd_pdacf *pdacf, int port, int irq)
+{
+ int err;
+ struct snd_card *card = pdacf->card;
+
+ snd_printdd(KERN_DEBUG "pdacf assign resources: port = 0x%x, irq = %d\n", port, irq);
+ pdacf->port = port;
+ pdacf->irq = irq;
+ pdacf->chip_status |= PDAUDIOCF_STAT_IS_CONFIGURED;
+
+ err = snd_pdacf_ak4117_create(pdacf);
+ if (err < 0)
+ return err;
+
+ strcpy(card->driver, "PDAudio-CF");
+ sprintf(card->shortname, "Core Sound %s", card->driver);
+ sprintf(card->longname, "%s at 0x%x, irq %i",
+ card->shortname, port, irq);
+
+ err = snd_pdacf_pcm_new(pdacf);
+ if (err < 0)
+ return err;
+
+ if ((err = snd_card_register(card)) < 0)
+ return err;
+
+ return 0;
+}
+
+
+/*
+ * snd_pdacf_detach - detach callback for cs
+ */
+static void snd_pdacf_detach(struct pcmcia_device *link)
+{
+ struct snd_pdacf *chip = link->priv;
+
+ snd_printdd(KERN_DEBUG "pdacf_detach called\n");
+
+ if (chip->chip_status & PDAUDIOCF_STAT_IS_CONFIGURED)
+ snd_pdacf_powerdown(chip);
+ chip->chip_status |= PDAUDIOCF_STAT_IS_STALE; /* to be sure */
+ snd_card_disconnect(chip->card);
+ snd_card_free_when_closed(chip->card);
+}
+
+/*
+ * configuration callback
+ */
+
+static int pdacf_config(struct pcmcia_device *link)
+{
+ struct snd_pdacf *pdacf = link->priv;
+ int ret;
+
+ snd_printdd(KERN_DEBUG "pdacf_config called\n");
+ link->config_index = 0x5;
+ link->config_flags |= CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ;
+
+ ret = pcmcia_request_io(link);
+ if (ret)
+ goto failed_preirq;
+
+ ret = request_threaded_irq(link->irq, pdacf_interrupt,
+ pdacf_threaded_irq,
+ IRQF_SHARED, link->devname, link->priv);
+ if (ret)
+ goto failed_preirq;
+
+ ret = pcmcia_enable_device(link);
+ if (ret)
+ goto failed;
+
+ if (snd_pdacf_assign_resources(pdacf, link->resource[0]->start,
+ link->irq) < 0)
+ goto failed;
+
+ return 0;
+
+ failed:
+ free_irq(link->irq, link->priv);
+failed_preirq:
+ pcmcia_disable_device(link);
+ return -ENODEV;
+}
+
+#ifdef CONFIG_PM
+
+static int pdacf_suspend(struct pcmcia_device *link)
+{
+ struct snd_pdacf *chip = link->priv;
+
+ snd_printdd(KERN_DEBUG "SUSPEND\n");
+ if (chip) {
+ snd_printdd(KERN_DEBUG "snd_pdacf_suspend calling\n");
+ snd_pdacf_suspend(chip);
+ }
+
+ return 0;
+}
+
+static int pdacf_resume(struct pcmcia_device *link)
+{
+ struct snd_pdacf *chip = link->priv;
+
+ snd_printdd(KERN_DEBUG "RESUME\n");
+ if (pcmcia_dev_present(link)) {
+ if (chip) {
+ snd_printdd(KERN_DEBUG "calling snd_pdacf_resume\n");
+ snd_pdacf_resume(chip);
+ }
+ }
+ snd_printdd(KERN_DEBUG "resume done!\n");
+
+ return 0;
+}
+
+#endif
+
+/*
+ * Module entry points
+ */
+static const struct pcmcia_device_id snd_pdacf_ids[] = {
+ /* this is too general PCMCIA_DEVICE_MANF_CARD(0x015d, 0x4c45), */
+ PCMCIA_DEVICE_PROD_ID12("Core Sound","PDAudio-CF",0x396d19d2,0x71717b49),
+ PCMCIA_DEVICE_NULL
+};
+MODULE_DEVICE_TABLE(pcmcia, snd_pdacf_ids);
+
+static struct pcmcia_driver pdacf_cs_driver = {
+ .owner = THIS_MODULE,
+ .name = "snd-pdaudiocf",
+ .probe = snd_pdacf_probe,
+ .remove = snd_pdacf_detach,
+ .id_table = snd_pdacf_ids,
+#ifdef CONFIG_PM
+ .suspend = pdacf_suspend,
+ .resume = pdacf_resume,
+#endif
+};
+module_pcmcia_driver(pdacf_cs_driver);
Code Review / kvmfornfv.git / blobdiff