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treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
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1a59d1b8 1// SPDX-License-Identifier: GPL-2.0-or-later
1da177e4
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2/*
3 * ALSA driver for ICEnsemble VT1724 (Envy24HT)
4 *
5 * Lowlevel functions for Advanced Micro Peripherals Ltd AUDIO2000
6 *
c1017a4c 7 * Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
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8 */
9
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10#include <linux/delay.h>
11#include <linux/interrupt.h>
12#include <linux/init.h>
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13#include <sound/core.h>
14
15#include "ice1712.h"
8cfbbac6 16#include "envy24ht.h"
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17#include "amp.h"
18
ab0c7d72 19static void wm_put(struct snd_ice1712 *ice, int reg, unsigned short val)
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20{
21 unsigned short cval;
22 cval = (reg << 9) | val;
23 snd_vt1724_write_i2c(ice, WM_DEV, cval >> 8, cval & 0xff);
24}
1da177e4 25
e23e7a14 26static int snd_vt1724_amp_init(struct snd_ice1712 *ice)
1da177e4 27{
32b47da0 28 static const unsigned short wm_inits[] = {
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29 WM_ATTEN_L, 0x0000, /* 0 db */
30 WM_ATTEN_R, 0x0000, /* 0 db */
31 WM_DAC_CTRL, 0x0008, /* 24bit I2S */
32 WM_INT_CTRL, 0x0001, /* 24bit I2S */
33 };
34
35 unsigned int i;
36
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37 /* only use basic functionality for now */
38
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39 /* VT1616 6ch codec connected to PSDOUT0 using packed mode */
40 ice->num_total_dacs = 6;
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41 ice->num_total_adcs = 2;
42
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43 /* Chaintech AV-710 has another WM8728 codec connected to PSDOUT4
44 (shared with the SPDIF output). Mixer control for this codec
45 is not yet supported. */
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46 if (ice->eeprom.subvendor == VT1724_SUBDEVICE_AV710) {
47 for (i = 0; i < ARRAY_SIZE(wm_inits); i += 2)
48 wm_put(ice, wm_inits[i], wm_inits[i+1]);
49 }
50
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51 return 0;
52}
53
e23e7a14 54static int snd_vt1724_amp_add_controls(struct snd_ice1712 *ice)
1da177e4 55{
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56 if (ice->ac97)
57 /* we use pins 39 and 41 of the VT1616 for left and right
58 read outputs */
59 snd_ac97_write_cache(ice->ac97, 0x5a,
60 snd_ac97_read(ice->ac97, 0x5a) & ~0x8000);
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61 return 0;
62}
63
64
65/* entry point */
e23e7a14 66struct snd_ice1712_card_info snd_vt1724_amp_cards[] = {
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67 {
68 .subvendor = VT1724_SUBDEVICE_AV710,
69 .name = "Chaintech AV-710",
70 .model = "av710",
71 .chip_init = snd_vt1724_amp_init,
72 .build_controls = snd_vt1724_amp_add_controls,
73 },
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74 {
75 .subvendor = VT1724_SUBDEVICE_AUDIO2000,
76 .name = "AMP Ltd AUDIO2000",
77 .model = "amp2000",
78 .chip_init = snd_vt1724_amp_init,
79 .build_controls = snd_vt1724_amp_add_controls,
80 },
81 { } /* terminator */
82};
83