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1 | // SPDX-License-Identifier: GPL-2.0-or-later | |
2 | /* | |
3 | * ALSA driver for ICEnsemble VT1724 (Envy24HT) | |
4 | * | |
5 | * Lowlevel functions for Advanced Micro Peripherals Ltd AUDIO2000 | |
6 | * | |
7 | * Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz> | |
8 | */ | |
9 | ||
10 | #include <linux/delay.h> | |
11 | #include <linux/interrupt.h> | |
12 | #include <linux/init.h> | |
13 | #include <sound/core.h> | |
14 | ||
15 | #include "ice1712.h" | |
16 | #include "envy24ht.h" | |
17 | #include "amp.h" | |
18 | ||
19 | static void wm_put(struct snd_ice1712 *ice, int reg, unsigned short val) | |
20 | { | |
21 | unsigned short cval; | |
22 | cval = (reg << 9) | val; | |
23 | snd_vt1724_write_i2c(ice, WM_DEV, cval >> 8, cval & 0xff); | |
24 | } | |
25 | ||
26 | static int snd_vt1724_amp_init(struct snd_ice1712 *ice) | |
27 | { | |
28 | static const unsigned short wm_inits[] = { | |
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 | ||
37 | /* only use basic functionality for now */ | |
38 | ||
39 | /* VT1616 6ch codec connected to PSDOUT0 using packed mode */ | |
40 | ice->num_total_dacs = 6; | |
41 | ice->num_total_adcs = 2; | |
42 | ||
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. */ | |
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 | ||
51 | return 0; | |
52 | } | |
53 | ||
54 | static int snd_vt1724_amp_add_controls(struct snd_ice1712 *ice) | |
55 | { | |
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); | |
61 | return 0; | |
62 | } | |
63 | ||
64 | ||
65 | /* entry point */ | |
66 | struct snd_ice1712_card_info snd_vt1724_amp_cards[] = { | |
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 | }, | |
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 |