1 files changed, 404 insertions, 0 deletions
diff --git a/sound/pcmcia/pdaudiocf/pdaudiocf.c b/sound/pcmcia/pdaudiocf/pdaudiocf.c
new file mode 100644
index 00000000000..f72c81cc995
--- /dev/null
+++ b/sound/pcmcia/pdaudiocf/pdaudiocf.c
@@ -0,0 +1,404 @@
+/*
+ * Driver for Sound Core PDAudioCF soundcard
+ *
+ * Copyright (c) 2003 by Jaroslav Kysela <perex@suse.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/driver.h>
+#include <sound/core.h>
+#include <linux/slab.h>
+#include <linux/moduleparam.h>
+#include <pcmcia/version.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@suse.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 int 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 dev_info_t dev_info = "snd-pdaudiocf";
+static snd_card_t *card_list[SNDRV_CARDS];
+static dev_link_t *dev_list;
+
+/*
+ * prototypes
+ */
+static void pdacf_config(dev_link_t *link);
+static int pdacf_event(event_t event, int priority, event_callback_args_t *args);
+static void snd_pdacf_detach(dev_link_t *link);
+
+static void pdacf_release(dev_link_t *link)
+{
+	if (link->state & DEV_CONFIG) {
+		/* release cs resources */
+		pcmcia_release_configuration(link->handle);
+		pcmcia_release_io(link->handle, &link->io);
+		pcmcia_release_irq(link->handle, &link->irq);
+		link->state &= ~DEV_CONFIG;
+	}
+}
+
+/*
+ * destructor
+ */
+static int snd_pdacf_free(pdacf_t *pdacf)
+{
+	dev_link_t *link = &pdacf->link;
+
+	pdacf_release(link);
+
+	/* Break the link with Card Services */
+	if (link->handle)
+		pcmcia_deregister_client(link->handle);
+
+	card_list[pdacf->index] = NULL;
+	pdacf->card = NULL;
+
+	kfree(pdacf);
+	return 0;
+}
+
+static int snd_pdacf_dev_free(snd_device_t *device)
+{
+	pdacf_t *chip = device->device_data;
+	return snd_pdacf_free(chip);
+}
+
+/*
+ * snd_pdacf_attach - attach callback for cs
+ */
+static dev_link_t *snd_pdacf_attach(void)
+{
+	client_reg_t client_reg;	/* Register with cardmgr */
+	dev_link_t *link;		/* Info for cardmgr */
+	int i, ret;
+	pdacf_t *pdacf;
+	snd_card_t *card;
+	static snd_device_ops_t 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 NULL;
+	}
+	if (! enable[i])
+		return NULL; /* disabled explicitly */
+
+	/* ok, create a card instance */
+	card = snd_card_new(index[i], id[i], THIS_MODULE, 0);
+	if (card == NULL) {
+		snd_printk(KERN_ERR "pdacf: cannot create a card instance\n");
+		return NULL;
+	}
+
+	pdacf = snd_pdacf_create(card);
+	if (! pdacf)
+		return NULL;
+
+	if (snd_device_new(card, SNDRV_DEV_LOWLEVEL, pdacf, &ops) < 0) {
+		kfree(pdacf);
+		snd_card_free(card);
+		return NULL;
+	}
+
+	pdacf->index = i;
+	card_list[i] = card;
+
+	link = &pdacf->link;
+	link->priv = pdacf;
+
+	link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
+	link->io.NumPorts1 = 16;
+
+	link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT | IRQ_FORCED_PULSE;
+	// link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED;
+
+	link->irq.IRQInfo1 = 0 /* | IRQ_LEVEL_ID */;
+	link->irq.Handler = pdacf_interrupt;
+	link->irq.Instance = pdacf;
+	link->conf.Attributes = CONF_ENABLE_IRQ;
+	link->conf.IntType = INT_MEMORY_AND_IO;
+	link->conf.ConfigIndex = 1;
+	link->conf.Present = PRESENT_OPTION;
+
+	/* Chain drivers */
+	link->next = dev_list;
+	dev_list = link;
+
+	/* Register with Card Services */
+	client_reg.dev_info = &dev_info;
+	client_reg.EventMask = 
+		CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL
+#ifdef CONFIG_PM
+		| CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET
+		| CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME
+#endif
+		;
+	client_reg.event_handler = &pdacf_event;
+	client_reg.Version = 0x0210;
+	client_reg.event_callback_args.client_data = link;
+
+	ret = pcmcia_register_client(&link->handle, &client_reg);
+	if (ret != CS_SUCCESS) {
+		cs_error(link->handle, RegisterClient, ret);
+		snd_pdacf_detach(link);
+		return NULL;
+	}
+
+	return 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(pdacf_t *pdacf, int port, int irq)
+{
+	int err;
+	snd_card_t *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;
+
+	snd_card_set_pm_callback(card, snd_pdacf_suspend, snd_pdacf_resume, pdacf);
+
+	if ((err = snd_card_register(card)) < 0)
+		return err;
+
+	return 0;
+}
+
+
+/*
+ * snd_pdacf_detach - detach callback for cs
+ */
+static void snd_pdacf_detach(dev_link_t *link)
+{
+	pdacf_t *chip = link->priv;
+
+	snd_printdd(KERN_DEBUG "pdacf_detach called\n");
+	/* Remove the interface data from the linked list */
+	{
+		dev_link_t **linkp;
+		/* Locate device structure */
+		for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
+			if (*linkp == link)
+				break;
+		if (*linkp)
+			*linkp = link->next;
+	}
+	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_in_thread(chip->card);
+}
+
+/*
+ * configuration callback
+ */
+
+#define CS_CHECK(fn, ret) \
+do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
+
+static void pdacf_config(dev_link_t *link)
+{
+	client_handle_t handle = link->handle;
+	pdacf_t *pdacf = link->priv;
+	tuple_t tuple;
+	cisparse_t *parse = NULL;
+	config_info_t conf;
+	u_short buf[32];
+	int last_fn, last_ret;
+
+	snd_printdd(KERN_DEBUG "pdacf_config called\n");
+	parse = kmalloc(sizeof(*parse), GFP_KERNEL);
+	if (! parse) {
+		snd_printk(KERN_ERR "pdacf_config: cannot allocate\n");
+		return;
+	}
+	tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
+	tuple.Attributes = 0;
+	tuple.TupleData = (cisdata_t *)buf;
+	tuple.TupleDataMax = sizeof(buf);
+	tuple.TupleOffset = 0;
+	tuple.DesiredTuple = CISTPL_CONFIG;
+	CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
+	CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
+	CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, parse));
+	link->conf.ConfigBase = parse->config.base;
+	link->conf.ConfigIndex = 0x5;
+	kfree(parse);
+
+	CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(handle, &conf));
+	link->conf.Vcc = conf.Vcc;
+
+	/* Configure card */
+	link->state |= DEV_CONFIG;
+
+	CS_CHECK(RequestIO, pcmcia_request_io(handle, &link->io));
+	CS_CHECK(RequestIRQ, pcmcia_request_irq(link->handle, &link->irq));
+	CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link->handle, &link->conf));
+
+	if (snd_pdacf_assign_resources(pdacf, link->io.BasePort1, link->irq.AssignedIRQ) < 0)
+		goto failed;
+
+	link->dev = &pdacf->node;
+	link->state &= ~DEV_CONFIG_PENDING;
+	return;
+
+cs_failed:
+	cs_error(link->handle, last_fn, last_ret);
+failed:
+	pcmcia_release_configuration(link->handle);
+	pcmcia_release_io(link->handle, &link->io);
+	pcmcia_release_irq(link->handle, &link->irq);
+}
+
+/*
+ * event callback
+ */
+static int pdacf_event(event_t event, int priority, event_callback_args_t *args)
+{
+	dev_link_t *link = args->client_data;
+	pdacf_t *chip = link->priv;
+
+	switch (event) {
+	case CS_EVENT_CARD_REMOVAL:
+		snd_printdd(KERN_DEBUG "CARD_REMOVAL..\n");
+		link->state &= ~DEV_PRESENT;
+		if (link->state & DEV_CONFIG) {
+			chip->chip_status |= PDAUDIOCF_STAT_IS_STALE;
+		}
+		break;
+	case CS_EVENT_CARD_INSERTION:
+		snd_printdd(KERN_DEBUG "CARD_INSERTION..\n");
+		link->state |= DEV_PRESENT;
+		pdacf_config(link);
+		break;
+#ifdef CONFIG_PM
+	case CS_EVENT_PM_SUSPEND:
+		snd_printdd(KERN_DEBUG "SUSPEND\n");
+		link->state |= DEV_SUSPEND;
+		if (chip) {
+			snd_printdd(KERN_DEBUG "snd_pdacf_suspend calling\n");
+			snd_pdacf_suspend(chip->card, PMSG_SUSPEND);
+		}
+		/* Fall through... */
+	case CS_EVENT_RESET_PHYSICAL:
+		snd_printdd(KERN_DEBUG "RESET_PHYSICAL\n");
+		if (link->state & DEV_CONFIG)
+			pcmcia_release_configuration(link->handle);
+		break;
+	case CS_EVENT_PM_RESUME:
+		snd_printdd(KERN_DEBUG "RESUME\n");
+		link->state &= ~DEV_SUSPEND;
+		/* Fall through... */
+	case CS_EVENT_CARD_RESET:
+		snd_printdd(KERN_DEBUG "CARD_RESET\n");
+		if (DEV_OK(link)) {
+			snd_printdd(KERN_DEBUG "requestconfig...\n");
+			pcmcia_request_configuration(link->handle, &link->conf);
+			if (chip) {
+				snd_printdd(KERN_DEBUG "calling snd_pdacf_resume\n");
+				snd_pdacf_resume(chip->card);
+			}
+		}
+		snd_printdd(KERN_DEBUG "resume done!\n");
+		break;
+#endif
+	}
+	return 0;
+}
+
+/*
+ * Module entry points
+ */
+static struct pcmcia_driver pdacf_cs_driver = {
+	.owner          = THIS_MODULE,
+	.drv            = {
+		.name   = "snd-pdaudiocf",
+	},
+	.attach         = snd_pdacf_attach,
+	.detach         = snd_pdacf_detach
+};
+
+static int __init init_pdacf(void)
+{
+	return pcmcia_register_driver(&pdacf_cs_driver);
+}
+
+static void __exit exit_pdacf(void)
+{
+	pcmcia_unregister_driver(&pdacf_cs_driver);
+	BUG_ON(dev_list != NULL);
+}
+
+module_init(init_pdacf);
+module_exit(exit_pdacf);