1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* ALSA driver for ICEnsemble VT1724 (Envy24HT)
*
* Lowlevel functions for Advanced Micro Peripherals Ltd AUDIO2000
*
* Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
*/
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/init.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 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 */
/* VT1616 6ch codec connected to PSDOUT0 using packed mode */
ice->num_total_dacs = 6;
ice->num_total_adcs = 2;
/* Chaintech AV-710 has another WM8728 codec connected to PSDOUT4
(shared with the SPDIF output). Mixer control for this codec
is not yet supported. */
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 snd_vt1724_amp_add_controls(struct snd_ice1712 *ice)
{
if (ice->ac97)
/* 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[] = {
{
.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 */
};
|
