[ALSA] vxpocket - Remove unused code

/*

 * Driver for Digigram VXpocket soundcards

 *

 * PCMCIA entry part

 *

 * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>

 *

 *   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 "vxpocket.h"

#include <pcmcia/ciscode.h>

#include <pcmcia/cisreg.h>

MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");

MODULE_DESCRIPTION("Common routines for Digigram PCMCIA VX drivers");

MODULE_LICENSE("GPL");

/*

 * prototypes

 */

static void vxpocket_config(dev_link_t *link);

static void vxpocket_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_vxpocket_free(vx_core_t *chip)

{

	struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip;

	struct snd_vxp_entry *hw;

	dev_link_t *link = &vxp->link;

	vxpocket_release(link);

	/* Break the link with Card Services */

	if (link->handle)

		pcmcia_deregister_client(link->handle);

	hw = vxp->hw_entry;

	if (hw)

		hw->card_list[vxp->index] = NULL;

	chip->card = NULL;

	kfree(chip->dev);

	snd_vx_free_firmware(chip);

	kfree(chip);

	return 0;

}

static int snd_vxpocket_dev_free(snd_device_t *device)

{

	vx_core_t *chip = device->device_data;

	return snd_vxpocket_free(chip);

}

/*

 * snd_vxpocket_attach - attach callback for cs

 * @hw: the hardware information

 */

dev_link_t *snd_vxpocket_attach(struct snd_vxp_entry *hw)

{

	client_reg_t client_reg;	/* Register with cardmgr */

	dev_link_t *link;		/* Info for cardmgr */

	int i, ret;

	vx_core_t *chip;

	struct snd_vxpocket *vxp;

	snd_card_t *card;

	static snd_device_ops_t ops = {

		.dev_free =	snd_vxpocket_dev_free,

	};

	snd_printdd(KERN_DEBUG "vxpocket_attach called\n");

	/* find an empty slot from the card list */

	for (i = 0; i < SNDRV_CARDS; i++) {

		if (! hw->card_list[i])

			break;

	}

	if (i >= SNDRV_CARDS) {

		snd_printk(KERN_ERR "vxpocket: too many cards found\n");

		return NULL;

	}

	if (! hw->enable_table[i])

		return NULL; /* disabled explicitly */

	/* ok, create a card instance */

	card = snd_card_new(hw->index_table[i], hw->id_table[i], THIS_MODULE, 0);

	if (card == NULL) {

		snd_printk(KERN_ERR "vxpocket: cannot create a card instance\n");

		return NULL;

	}

	chip = snd_vx_create(card, hw->hardware, hw->ops,

			     sizeof(struct snd_vxpocket) - sizeof(vx_core_t));

	if (! chip)

		return NULL;

#ifdef SND_VX_FW_LOADER

	/* fake a device here since pcmcia doesn't give a valid device... */

	chip->dev = kcalloc(1, sizeof(*chip->dev), GFP_KERNEL);

	if (! chip->dev) {

		snd_printk(KERN_ERR "vxp: can't malloc chip->dev\n");

		kfree(chip);

		snd_card_free(card);

		return NULL;

	}

	device_initialize(chip->dev);

	sprintf(chip->dev->bus_id, "vxpocket%d", i);

#endif

	if (snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops) < 0) {

		kfree(chip);

		snd_card_free(card);

		return NULL;

	}

	vxp = (struct snd_vxpocket *)chip;

	vxp->index = i;

	vxp->hw_entry = hw;

	chip->ibl.size = hw->ibl[i];

	hw->card_list[i] = chip;

	link = &vxp->link;

	link->priv = chip;

	link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;

	link->io.NumPorts1 = 16;

	link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;

	// link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED;

	link->irq.IRQInfo1 = IRQ_LEVEL_ID;

	link->irq.Handler = &snd_vx_irq_handler;

	link->irq.Instance = chip;

	link->conf.Attributes = CONF_ENABLE_IRQ;

	link->conf.Vcc = 50;

	link->conf.IntType = INT_MEMORY_AND_IO;

	link->conf.ConfigIndex = 1;

	link->conf.Present = PRESENT_OPTION;

	/* Register with Card Services */

	memset(&client_reg, 0, sizeof(client_reg));

	client_reg.dev_info = hw->dev_info;

	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_card_free(card);

		return NULL;

	}

	/* Chain drivers */

	link->next = hw->dev_list;

	hw->dev_list = link;

	/* snd_card_set_pm_callback(card, snd_vxpocket_suspend, snd_vxpocket_resume, chip); */

	return link;

}

/**

 * snd_vxpocket_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_vxpocket_assign_resources(vx_core_t *chip, int port, int irq)

{

	int err;

	snd_card_t *card = chip->card;

	struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip;

	snd_printdd(KERN_DEBUG "vxpocket assign resources: port = 0x%x, irq = %d\n", port, irq);

	vxp->port = port;

	sprintf(card->shortname, "Digigram %s", card->driver);

	sprintf(card->longname, "%s at 0x%x, irq %i",

		card->shortname, port, irq);

	chip->irq = irq;

	if ((err = snd_vx_setup_firmware(chip)) < 0)

		return err;

	return 0;

}

/*

 * snd_vxpocket_detach - detach callback for cs

 * @hw: the hardware information

 */

void snd_vxpocket_detach(struct snd_vxp_entry *hw, dev_link_t *link)

{

	vx_core_t *chip;

	if (! link)

		return;

	chip = link->priv;

	snd_printdd(KERN_DEBUG "vxpocket_detach called\n");

	/* Remove the interface data from the linked list */

	if (hw) {

		dev_link_t **linkp;

		/* Locate device structure */

		for (linkp = &hw->dev_list; *linkp; linkp = &(*linkp)->next)

			if (*linkp == link) {

				*linkp = link->next;

				break;

			}

	}

	chip->chip_status |= VX_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 vxpocket_config(dev_link_t *link)

{

	client_handle_t handle = link->handle;

	vx_core_t *chip = link->priv;

	struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip;

	tuple_t tuple;

	cisparse_t *parse = NULL;

	u_short buf[32];

	int last_fn, last_ret;

	snd_printdd(KERN_DEBUG "vxpocket_config called\n");

	parse = kmalloc(sizeof(*parse), GFP_KERNEL);

	if (! parse) {

		snd_printk(KERN_ERR "vx: cannot allocate\n");

		return;

	}

	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.Present = parse->config.rmask[0];

	/* 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_vxpocket_assign_resources(chip, link->io.BasePort1, link->irq.AssignedIRQ) < 0)

		goto failed;

	link->dev = &vxp->node;

	link->state &= ~DEV_CONFIG_PENDING;

	kfree(parse);

	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);

	link->state &= ~DEV_CONFIG;

	kfree(parse);

}

/*

 * event callback

 */

int vxpocket_event(event_t event, int priority, event_callback_args_t *args)

{

	dev_link_t *link = args->client_data;

	vx_core_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 |= VX_STAT_IS_STALE;

		}

		break;

	case CS_EVENT_CARD_INSERTION:

		snd_printdd(KERN_DEBUG "CARD_INSERTION..\n");

		link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;

		vxpocket_config(link);

		break;

#ifdef CONFIG_PM

	case CS_EVENT_PM_SUSPEND:

		snd_printdd(KERN_DEBUG "SUSPEND\n");

		link->state |= DEV_SUSPEND;

		if (chip && chip->card->pm_suspend) {

			snd_printdd(KERN_DEBUG "snd_vx_suspend calling\n");

			chip->card->pm_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)) {

			//struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip;

			snd_printdd(KERN_DEBUG "requestconfig...\n");

			pcmcia_request_configuration(link->handle, &link->conf);

			if (chip && chip->card->pm_resume) {

				snd_printdd(KERN_DEBUG "calling snd_vx_resume\n");

				chip->card->pm_resume(chip->card);

			}

		}

		snd_printdd(KERN_DEBUG "resume done!\n");

		break;

#endif

	}

	return 0;

}

/*

 * exported stuffs

 */

EXPORT_SYMBOL(snd_vxpocket_ops);

EXPORT_SYMBOL(snd_vxpocket_attach);

EXPORT_SYMBOL(vxpocket_event);

EXPORT_SYMBOL(snd_vxpocket_detach);

#define COMPILE_VXP440

/*

 add the following as /etc/pcmcia/vxp440.conf:

  device "snd-vxp440"

    class "audio" module "snd-vxp440"

  card "Digigram VX-POCKET440"

    manfid 0x01f1, 0x0100

    bind "snd-vxp440"

*/

#include "vxpocket.c"