1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
65 lines
1.8 KiB
C
65 lines
1.8 KiB
C
/*
|
|
* ALSA driver for ICEnsemble VT1724 (Envy24HT)
|
|
*
|
|
* Lowlevel functions for Advanced Micro Peripherals Ltd AUDIO2000
|
|
*
|
|
* Copyright (c) 2000 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 <asm/io.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/init.h>
|
|
#include <linux/slab.h>
|
|
#include <sound/core.h>
|
|
|
|
#include "ice1712.h"
|
|
#include "amp.h"
|
|
|
|
|
|
static int __devinit snd_vt1724_amp_init(ice1712_t *ice)
|
|
{
|
|
/* only use basic functionality for now */
|
|
|
|
ice->num_total_dacs = 2; /* only PSDOUT0 is connected */
|
|
ice->num_total_adcs = 2;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __devinit snd_vt1724_amp_add_controls(ice1712_t *ice)
|
|
{
|
|
/* we use pins 39 and 41 of the VT1616 for left and right read outputs */
|
|
snd_ac97_write_cache(ice->ac97, 0x5a, snd_ac97_read(ice->ac97, 0x5a) & ~0x8000);
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* entry point */
|
|
struct snd_ice1712_card_info snd_vt1724_amp_cards[] __devinitdata = {
|
|
{
|
|
.subvendor = VT1724_SUBDEVICE_AUDIO2000,
|
|
.name = "AMP Ltd AUDIO2000",
|
|
.model = "amp2000",
|
|
.chip_init = snd_vt1724_amp_init,
|
|
.build_controls = snd_vt1724_amp_add_controls,
|
|
},
|
|
{ } /* terminator */
|
|
};
|
|
|