/*
* 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 "envy24ht.h"
#include "amp.h"
static void wm_put(struct snd_ice1712 *ice, int reg, unsigned short val)
{
unsigned short cval;
cval = (reg << 9) | val;
snd_vt1724_write_i2c(ice, WM_DEV, cval >> 8, cval & 0xff);
}
static int __devinit snd_vt1724_amp_init(struct snd_ice1712 *ice)
{
static const unsigned short wm_inits[] = {
WM_ATTEN_L, 0x0000, /* 0 db */
WM_ATTEN_R, 0x0000, /* 0 db */
WM_DAC_CTRL, 0x0008, /* 24bit I2S */
WM_INT_CTRL, 0x0001, /* 24bit I2S */
};
unsigned int i;
/* only use basic functionality for now */
ice->num_total_dacs = 2; /* only PSDOUT0 is connected */
ice->num_total_adcs = 2;
/* Chaintech AV-710 has another codecs, which need initialization */
/* initialize WM8728 codec */
if (ice->eeprom.subvendor == VT1724_SUBDEVICE_AV710) {
for (i = 0; i < ARRAY_SIZE(wm_inits); i += 2)
wm_put(ice, wm_inits[i], wm_inits[i+1]);
}
return 0;
}
static int __devinit snd_vt1724_amp_add_controls(struct snd_ice1712 *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_AV710,
.name = "Chaintech AV-710",
.model = "av710",
.chip_init = snd_vt1724_amp_init,
.build_controls = snd_vt1724_amp_add_controls,
},
{
.subvendor = VT1724_SUBDEVICE_AUDIO2000,
.name = "AMP Ltd AUDIO2000",
.model = "amp2000",
.chip_init = snd_vt1724_amp_init,
.build_controls = snd_vt1724_amp_add_controls,
},
{ } /* terminator */
};
