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83 lines
2.0 KiB
83 lines
2.0 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* ALSA driver for ICEnsemble VT1724 (Envy24HT) |
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* |
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* Lowlevel functions for Advanced Micro Peripherals Ltd AUDIO2000 |
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* |
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* Copyright (c) 2000 Jaroslav Kysela <[email protected]> |
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*/ |
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#include <linux/delay.h> |
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#include <linux/interrupt.h> |
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#include <linux/init.h> |
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#include <sound/core.h> |
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#include "ice1712.h" |
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#include "envy24ht.h" |
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#include "amp.h" |
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static void wm_put(struct snd_ice1712 *ice, int reg, unsigned short val) |
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{ |
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unsigned short cval; |
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cval = (reg << 9) | val; |
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snd_vt1724_write_i2c(ice, WM_DEV, cval >> 8, cval & 0xff); |
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} |
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static int snd_vt1724_amp_init(struct snd_ice1712 *ice) |
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{ |
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static const unsigned short wm_inits[] = { |
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WM_ATTEN_L, 0x0000, /* 0 db */ |
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WM_ATTEN_R, 0x0000, /* 0 db */ |
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WM_DAC_CTRL, 0x0008, /* 24bit I2S */ |
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WM_INT_CTRL, 0x0001, /* 24bit I2S */ |
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}; |
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unsigned int i; |
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/* only use basic functionality for now */ |
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/* VT1616 6ch codec connected to PSDOUT0 using packed mode */ |
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ice->num_total_dacs = 6; |
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ice->num_total_adcs = 2; |
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/* Chaintech AV-710 has another WM8728 codec connected to PSDOUT4 |
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(shared with the SPDIF output). Mixer control for this codec |
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is not yet supported. */ |
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if (ice->eeprom.subvendor == VT1724_SUBDEVICE_AV710) { |
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for (i = 0; i < ARRAY_SIZE(wm_inits); i += 2) |
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wm_put(ice, wm_inits[i], wm_inits[i+1]); |
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} |
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return 0; |
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} |
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static int snd_vt1724_amp_add_controls(struct snd_ice1712 *ice) |
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{ |
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if (ice->ac97) |
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/* we use pins 39 and 41 of the VT1616 for left and right |
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read outputs */ |
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snd_ac97_write_cache(ice->ac97, 0x5a, |
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snd_ac97_read(ice->ac97, 0x5a) & ~0x8000); |
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return 0; |
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} |
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/* entry point */ |
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struct snd_ice1712_card_info snd_vt1724_amp_cards[] = { |
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{ |
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.subvendor = VT1724_SUBDEVICE_AV710, |
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.name = "Chaintech AV-710", |
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.model = "av710", |
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.chip_init = snd_vt1724_amp_init, |
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.build_controls = snd_vt1724_amp_add_controls, |
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}, |
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{ |
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.subvendor = VT1724_SUBDEVICE_AUDIO2000, |
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.name = "AMP Ltd AUDIO2000", |
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.model = "amp2000", |
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.chip_init = snd_vt1724_amp_init, |
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.build_controls = snd_vt1724_amp_add_controls, |
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}, |
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{ } /* terminator */ |
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}; |
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