Merge branch 'media_fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab...
[cris-mirror.git] / sound / pci / ice1712 / amp.c
blobe328cfb7620c77bd80d1c3788c373f6ababfc520
1 /*
2 * ALSA driver for ICEnsemble VT1724 (Envy24HT)
4 * Lowlevel functions for Advanced Micro Peripherals Ltd AUDIO2000
6 * Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
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.
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.
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
22 */
24 #include <asm/io.h>
25 #include <linux/delay.h>
26 #include <linux/interrupt.h>
27 #include <linux/init.h>
28 #include <sound/core.h>
30 #include "ice1712.h"
31 #include "envy24ht.h"
32 #include "amp.h"
34 static void wm_put(struct snd_ice1712 *ice, int reg, unsigned short val)
36 unsigned short cval;
37 cval = (reg << 9) | val;
38 snd_vt1724_write_i2c(ice, WM_DEV, cval >> 8, cval & 0xff);
41 static int __devinit snd_vt1724_amp_init(struct snd_ice1712 *ice)
43 static const unsigned short wm_inits[] = {
44 WM_ATTEN_L, 0x0000, /* 0 db */
45 WM_ATTEN_R, 0x0000, /* 0 db */
46 WM_DAC_CTRL, 0x0008, /* 24bit I2S */
47 WM_INT_CTRL, 0x0001, /* 24bit I2S */
50 unsigned int i;
52 /* only use basic functionality for now */
54 /* VT1616 6ch codec connected to PSDOUT0 using packed mode */
55 ice->num_total_dacs = 6;
56 ice->num_total_adcs = 2;
58 /* Chaintech AV-710 has another WM8728 codec connected to PSDOUT4
59 (shared with the SPDIF output). Mixer control for this codec
60 is not yet supported. */
61 if (ice->eeprom.subvendor == VT1724_SUBDEVICE_AV710) {
62 for (i = 0; i < ARRAY_SIZE(wm_inits); i += 2)
63 wm_put(ice, wm_inits[i], wm_inits[i+1]);
66 return 0;
69 static int __devinit snd_vt1724_amp_add_controls(struct snd_ice1712 *ice)
71 /* we use pins 39 and 41 of the VT1616 for left and right read outputs */
72 snd_ac97_write_cache(ice->ac97, 0x5a, snd_ac97_read(ice->ac97, 0x5a) & ~0x8000);
73 return 0;
77 /* entry point */
78 struct snd_ice1712_card_info snd_vt1724_amp_cards[] __devinitdata = {
80 .subvendor = VT1724_SUBDEVICE_AV710,
81 .name = "Chaintech AV-710",
82 .model = "av710",
83 .chip_init = snd_vt1724_amp_init,
84 .build_controls = snd_vt1724_amp_add_controls,
87 .subvendor = VT1724_SUBDEVICE_AUDIO2000,
88 .name = "AMP Ltd AUDIO2000",
89 .model = "amp2000",
90 .chip_init = snd_vt1724_amp_init,
91 .build_controls = snd_vt1724_amp_add_controls,
93 { } /* terminator */