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root/sound/pcmcia/vx/vxpocket.c

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DEFINITIONS

This source file includes following definitions.
  1. vxpocket_release
  2. snd_vxpocket_dev_free
  3. snd_vxpocket_new
  4. snd_vxpocket_assign_resources
  5. vxpocket_config
  6. vxp_suspend
  7. vxp_resume
  8. vxpocket_probe
  9. vxpocket_detach
  10. init_vxpocket
  11. exit_vxpocket

/*
 * Driver for Digigram VXpocket V2/440 soundcards
 *
 * 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 <linux/init.h>
#include <linux/moduleparam.h>
#include <sound/core.h>
#include "vxpocket.h"
#include <pcmcia/ciscode.h>
#include <pcmcia/cisreg.h>
#include <sound/initval.h>
#include <sound/tlv.h>

/*
 */

MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
MODULE_DESCRIPTION("Digigram VXPocket");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{Digigram,VXPocket},{Digigram,VXPocket440}}");

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 */
static int ibl[SNDRV_CARDS];

module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for VXPocket soundcard.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for VXPocket soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable VXPocket soundcard.");
module_param_array(ibl, int, NULL, 0444);
MODULE_PARM_DESC(ibl, "Capture IBL size for VXPocket soundcard.");
 

/*
 */

static unsigned int card_alloc;


/*
 */
static void vxpocket_release(struct pcmcia_device *link)
{
        pcmcia_disable_device(link);
}

/*
 * destructor, called from snd_card_free_when_closed()
 */
static int snd_vxpocket_dev_free(struct snd_device *device)
{
        struct vx_core *chip = device->device_data;

        snd_vx_free_firmware(chip);
        kfree(chip);
        return 0;
}


/*
 * Hardware information
 */

/* VX-pocket V2
 *
 * 1 DSP, 1 sync UER
 * 1 programmable clock (NIY)
 * 1 stereo analog input (line/micro)
 * 1 stereo analog output
 * Only output levels can be modified
 */

static const DECLARE_TLV_DB_SCALE(db_scale_old_vol, -11350, 50, 0);

static struct snd_vx_hardware vxpocket_hw = {
        .name = "VXPocket",
        .type = VX_TYPE_VXPOCKET,

        /* hardware specs */
        .num_codecs = 1,
        .num_ins = 1,
        .num_outs = 1,
        .output_level_max = VX_ANALOG_OUT_LEVEL_MAX,
        .output_level_db_scale = db_scale_old_vol,
};      

/* VX-pocket 440
 *
 * 1 DSP, 1 sync UER, 1 sync World Clock (NIY)
 * SMPTE (NIY)
 * 2 stereo analog input (line/micro)
 * 2 stereo analog output
 * Only output levels can be modified
 * UER, but only for the first two inputs and outputs.
 */

static struct snd_vx_hardware vxp440_hw = {
        .name = "VXPocket440",
        .type = VX_TYPE_VXP440,

        /* hardware specs */
        .num_codecs = 2,
        .num_ins = 2,
        .num_outs = 2,
        .output_level_max = VX_ANALOG_OUT_LEVEL_MAX,
        .output_level_db_scale = db_scale_old_vol,
};      


/*
 * create vxpocket instance
 */
static struct snd_vxpocket *snd_vxpocket_new(struct snd_card *card, int ibl,
                                             struct pcmcia_device *link)
{
        struct vx_core *chip;
        struct snd_vxpocket *vxp;
        static struct snd_device_ops ops = {
                .dev_free =     snd_vxpocket_dev_free,
        };

        chip = snd_vx_create(card, &vxpocket_hw, &snd_vxpocket_ops,
                             sizeof(struct snd_vxpocket) - sizeof(struct vx_core));
        if (! chip)
                return NULL;

        if (snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops) < 0) {
                kfree(chip);
                return NULL;
        }
        chip->ibl.size = ibl;

        vxp = (struct snd_vxpocket *)chip;

        vxp->p_dev = 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.IRQInfo1 = IRQ_LEVEL_ID;
        link->irq.Handler = &snd_vx_irq_handler;
        link->irq.Instance = chip;

        link->conf.Attributes = CONF_ENABLE_IRQ;
        link->conf.IntType = INT_MEMORY_AND_IO;
        link->conf.ConfigIndex = 1;
        link->conf.Present = PRESENT_OPTION;

        return vxp;
}


/**
 * 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(struct vx_core *chip, int port, int irq)
{
        int err;
        struct snd_card *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;
}


/*
 * configuration callback
 */

#define CS_CHECK(fn, ret) \
do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)

static int vxpocket_config(struct pcmcia_device *link)
{
        struct vx_core *chip = link->priv;
        struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip;
        int last_fn, last_ret;

        snd_printdd(KERN_DEBUG "vxpocket_config called\n");

        /* redefine hardware record according to the VERSION1 string */
        if (!strcmp(link->prod_id[1], "VX-POCKET")) {
                snd_printdd("VX-pocket is detected\n");
        } else {
                snd_printdd("VX-pocket 440 is detected\n");
                /* overwrite the hardware information */
                chip->hw = &vxp440_hw;
                chip->type = vxp440_hw.type;
                strcpy(chip->card->driver, vxp440_hw.name);
        }

        CS_CHECK(RequestIO, pcmcia_request_io(link, &link->io));
        CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
        CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));

        chip->dev = &handle_to_dev(link);
        snd_card_set_dev(chip->card, chip->dev);

        if (snd_vxpocket_assign_resources(chip, link->io.BasePort1, link->irq.AssignedIRQ) < 0)
                goto failed;

        link->dev_node = &vxp->node;
        return 0;

cs_failed:
        cs_error(link, last_fn, last_ret);
failed:
        pcmcia_disable_device(link);
        return -ENODEV;
}

#ifdef CONFIG_PM

static int vxp_suspend(struct pcmcia_device *link)
{
        struct vx_core *chip = link->priv;

        snd_printdd(KERN_DEBUG "SUSPEND\n");
        if (chip) {
                snd_printdd(KERN_DEBUG "snd_vx_suspend calling\n");
                snd_vx_suspend(chip, PMSG_SUSPEND);
        }

        return 0;
}

static int vxp_resume(struct pcmcia_device *link)
{
        struct vx_core *chip = link->priv;

        snd_printdd(KERN_DEBUG "RESUME\n");
        if (pcmcia_dev_present(link)) {
                //struct snd_vxpocket *vxp = (struct snd_vxpocket *)chip;
                if (chip) {
                        snd_printdd(KERN_DEBUG "calling snd_vx_resume\n");
                        snd_vx_resume(chip);
                }
        }
        snd_printdd(KERN_DEBUG "resume done!\n");

        return 0;
}

#endif


/*
 */
static int vxpocket_probe(struct pcmcia_device *p_dev)
{
        struct snd_card *card;
        struct snd_vxpocket *vxp;
        int i;

        /* find an empty slot from the card list */
        for (i = 0; i < SNDRV_CARDS; i++) {
                if (!(card_alloc & (1 << i)))
                        break;
        }
        if (i >= SNDRV_CARDS) {
                snd_printk(KERN_ERR "vxpocket: too many cards found\n");
                return -EINVAL;
        }
        if (! enable[i])
                return -ENODEV; /* 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 "vxpocket: cannot create a card instance\n");
                return -ENOMEM;
        }

        vxp = snd_vxpocket_new(card, ibl[i], p_dev);
        if (! vxp) {
                snd_card_free(card);
                return -ENODEV;
        }
        card->private_data = vxp;

        vxp->index = i;
        card_alloc |= 1 << i;

        vxp->p_dev = p_dev;

        return vxpocket_config(p_dev);
}

static void vxpocket_detach(struct pcmcia_device *link)
{
        struct snd_vxpocket *vxp;
        struct vx_core *chip;

        if (! link)
                return;

        vxp = link->priv;
        chip = (struct vx_core *)vxp;
        card_alloc &= ~(1 << vxp->index);

        chip->chip_status |= VX_STAT_IS_STALE; /* to be sure */
        snd_card_disconnect(chip->card);
        vxpocket_release(link);
        snd_card_free_when_closed(chip->card);
}

/*
 * Module entry points
 */

static struct pcmcia_device_id vxp_ids[] = {
        PCMCIA_DEVICE_MANF_CARD(0x01f1, 0x0100),
        PCMCIA_DEVICE_NULL
};
MODULE_DEVICE_TABLE(pcmcia, vxp_ids);

static struct pcmcia_driver vxp_cs_driver = {
        .owner          = THIS_MODULE,
        .drv            = {
                .name   = "snd-vxpocket",
        },
        .probe          = vxpocket_probe,
        .remove         = vxpocket_detach,
        .id_table       = vxp_ids,
#ifdef CONFIG_PM
        .suspend        = vxp_suspend,
        .resume         = vxp_resume,
#endif
};

static int __init init_vxpocket(void)
{
        return pcmcia_register_driver(&vxp_cs_driver);
}

static void __exit exit_vxpocket(void)
{
        pcmcia_unregister_driver(&vxp_cs_driver);
}

module_init(init_vxpocket);
module_exit(exit_vxpocket);

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