File: [Development] / linux-2.6-xfs / sound / drivers / vx / vx_hwdep.c (download)
Revision 1.2, Fri Oct 1 15:10:15 2004 UTC (13 years ago) by nathans.longdrop.melbourne.sgi.com
Branch: MAIN
Changes since 1.1: +2 -2
lines
Upgrade kernel to 2.6.9-rc3 and kdb to 4.4
Merge of 2.6.x-xfs-melb:linux:19628a by kenmcd.
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/*
* Driver for Digigram VX soundcards
*
* hwdep device manager
*
* 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 <sound/hwdep.h>
#include <sound/vx_core.h>
static int vx_hwdep_open(snd_hwdep_t *hw, struct file *file)
{
return 0;
}
static int vx_hwdep_release(snd_hwdep_t *hw, struct file *file)
{
return 0;
}
static int vx_hwdep_dsp_status(snd_hwdep_t *hw, snd_hwdep_dsp_status_t *info)
{
static char *type_ids[VX_TYPE_NUMS] = {
[VX_TYPE_BOARD] = "vxboard",
[VX_TYPE_V2] = "vx222",
[VX_TYPE_MIC] = "vx222",
[VX_TYPE_VXPOCKET] = "vxpocket",
[VX_TYPE_VXP440] = "vxp440",
};
vx_core_t *vx = hw->private_data;
snd_assert(type_ids[vx->type], return -EINVAL);
strcpy(info->id, type_ids[vx->type]);
if (vx_is_pcmcia(vx))
info->num_dsps = 4;
else
info->num_dsps = 3;
if (vx->chip_status & VX_STAT_CHIP_INIT)
info->chip_ready = 1;
info->version = VX_DRIVER_VERSION;
return 0;
}
static int vx_hwdep_dsp_load(snd_hwdep_t *hw, snd_hwdep_dsp_image_t *dsp)
{
vx_core_t *vx = hw->private_data;
int index, err;
snd_assert(vx->ops->load_dsp, return -ENXIO);
err = vx->ops->load_dsp(vx, dsp);
if (err < 0)
return err;
index = dsp->index;
if (! vx_is_pcmcia(vx))
index++;
if (index == 1)
vx->chip_status |= VX_STAT_XILINX_LOADED;
if (index < 3)
return 0;
/* ok, we reached to the last one */
/* create the devices if not built yet */
if (! (vx->chip_status & VX_STAT_DEVICE_INIT)) {
if ((err = snd_vx_pcm_new(vx)) < 0)
return err;
if ((err = snd_vx_mixer_new(vx)) < 0)
return err;
if (vx->ops->add_controls)
if ((err = vx->ops->add_controls(vx)) < 0)
return err;
if ((err = snd_card_register(vx->card)) < 0)
return err;
vx->chip_status |= VX_STAT_DEVICE_INIT;
}
vx->chip_status |= VX_STAT_CHIP_INIT;
return 0;
}
/* exported */
int snd_vx_hwdep_new(vx_core_t *chip)
{
int err;
snd_hwdep_t *hw;
if ((err = snd_hwdep_new(chip->card, SND_VX_HWDEP_ID, 0, &hw)) < 0)
return err;
hw->iface = SNDRV_HWDEP_IFACE_VX;
hw->private_data = chip;
hw->ops.open = vx_hwdep_open;
hw->ops.release = vx_hwdep_release;
hw->ops.dsp_status = vx_hwdep_dsp_status;
hw->ops.dsp_load = vx_hwdep_dsp_load;
hw->exclusive = 1;
sprintf(hw->name, "VX Loader (%s)", chip->card->driver);
chip->hwdep = hw;
return 0;
}