linux/sound/pci/ice1712/amp.c
Thomas Gleixner 1a59d1b8e0 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details you
  should have received a copy of the gnu general public license along
  with this program if not write to the free software foundation inc
  59 temple place suite 330 boston ma 02111 1307 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 1334 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:35 -07:00

84 lines
2.0 KiB
C

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