1 /*
2 * ALSA driver for ICEnsemble VT1724 (Envy24HT)
3 *
4 * Lowlevel functions for Advanced Micro Peripherals Ltd AUDIO2000
5 *
6 * Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
24 #include <linux/delay.h>
25 #include <linux/interrupt.h>
26 #include <linux/init.h>
27 #include <sound/core.h>
28
29 #include "ice1712.h"
30 #include "envy24ht.h"
31 #include "amp.h"
32
wm_put(struct snd_ice1712 * ice,int reg,unsigned short val)33 static void wm_put(struct snd_ice1712 *ice, int reg, unsigned short val)
34 {
35 unsigned short cval;
36 cval = (reg << 9) | val;
37 snd_vt1724_write_i2c(ice, WM_DEV, cval >> 8, cval & 0xff);
38 }
39
snd_vt1724_amp_init(struct snd_ice1712 * ice)40 static int snd_vt1724_amp_init(struct snd_ice1712 *ice)
41 {
42 static const unsigned short wm_inits[] = {
43 WM_ATTEN_L, 0x0000, /* 0 db */
44 WM_ATTEN_R, 0x0000, /* 0 db */
45 WM_DAC_CTRL, 0x0008, /* 24bit I2S */
46 WM_INT_CTRL, 0x0001, /* 24bit I2S */
47 };
48
49 unsigned int i;
50
51 /* only use basic functionality for now */
52
53 /* VT1616 6ch codec connected to PSDOUT0 using packed mode */
54 ice->num_total_dacs = 6;
55 ice->num_total_adcs = 2;
56
57 /* Chaintech AV-710 has another WM8728 codec connected to PSDOUT4
58 (shared with the SPDIF output). Mixer control for this codec
59 is not yet supported. */
60 if (ice->eeprom.subvendor == VT1724_SUBDEVICE_AV710) {
61 for (i = 0; i < ARRAY_SIZE(wm_inits); i += 2)
62 wm_put(ice, wm_inits[i], wm_inits[i+1]);
63 }
64
65 return 0;
66 }
67
snd_vt1724_amp_add_controls(struct snd_ice1712 * ice)68 static int snd_vt1724_amp_add_controls(struct snd_ice1712 *ice)
69 {
70 if (ice->ac97)
71 /* we use pins 39 and 41 of the VT1616 for left and right
72 read outputs */
73 snd_ac97_write_cache(ice->ac97, 0x5a,
74 snd_ac97_read(ice->ac97, 0x5a) & ~0x8000);
75 return 0;
76 }
77
78
79 /* entry point */
80 struct snd_ice1712_card_info snd_vt1724_amp_cards[] = {
81 {
82 .subvendor = VT1724_SUBDEVICE_AV710,
83 .name = "Chaintech AV-710",
84 .model = "av710",
85 .chip_init = snd_vt1724_amp_init,
86 .build_controls = snd_vt1724_amp_add_controls,
87 },
88 {
89 .subvendor = VT1724_SUBDEVICE_AUDIO2000,
90 .name = "AMP Ltd AUDIO2000",
91 .model = "amp2000",
92 .chip_init = snd_vt1724_amp_init,
93 .build_controls = snd_vt1724_amp_add_controls,
94 },
95 { } /* terminator */
96 };
97
98
