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1da177e4 LT |
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@suse.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 <sound/driver.h> | |
25 | #include <asm/io.h> | |
26 | #include <linux/delay.h> | |
27 | #include <linux/interrupt.h> | |
28 | #include <linux/init.h> | |
29 | #include <linux/slab.h> | |
30 | #include <sound/core.h> | |
31 | ||
32 | #include "ice1712.h" | |
8cfbbac6 | 33 | #include "envy24ht.h" |
1da177e4 LT |
34 | #include "amp.h" |
35 | ||
ab0c7d72 | 36 | static void wm_put(struct snd_ice1712 *ice, int reg, unsigned short val) |
8cfbbac6 TI |
37 | { |
38 | unsigned short cval; | |
39 | cval = (reg << 9) | val; | |
40 | snd_vt1724_write_i2c(ice, WM_DEV, cval >> 8, cval & 0xff); | |
41 | } | |
1da177e4 | 42 | |
ab0c7d72 | 43 | static int __devinit snd_vt1724_amp_init(struct snd_ice1712 *ice) |
1da177e4 | 44 | { |
8cfbbac6 TI |
45 | static unsigned short wm_inits[] = { |
46 | WM_ATTEN_L, 0x0000, /* 0 db */ | |
47 | WM_ATTEN_R, 0x0000, /* 0 db */ | |
48 | WM_DAC_CTRL, 0x0008, /* 24bit I2S */ | |
49 | WM_INT_CTRL, 0x0001, /* 24bit I2S */ | |
50 | }; | |
51 | ||
52 | unsigned int i; | |
53 | ||
1da177e4 LT |
54 | /* only use basic functionality for now */ |
55 | ||
56 | ice->num_total_dacs = 2; /* only PSDOUT0 is connected */ | |
57 | ice->num_total_adcs = 2; | |
58 | ||
8cfbbac6 TI |
59 | /* Chaintech AV-710 has another codecs, which need initialization */ |
60 | /* initialize WM8728 codec */ | |
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]); | |
64 | } | |
65 | ||
1da177e4 LT |
66 | return 0; |
67 | } | |
68 | ||
ab0c7d72 | 69 | static int __devinit snd_vt1724_amp_add_controls(struct snd_ice1712 *ice) |
1da177e4 LT |
70 | { |
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; | |
74 | } | |
75 | ||
76 | ||
77 | /* entry point */ | |
78 | struct snd_ice1712_card_info snd_vt1724_amp_cards[] __devinitdata = { | |
8cfbbac6 TI |
79 | { |
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, | |
85 | }, | |
1da177e4 LT |
86 | { |
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, | |
92 | }, | |
93 | { } /* terminator */ | |
94 | }; | |
95 |