Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

/*

 * 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 <sound/driver.h>

#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);