mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
1a59d1b8e0
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>
83 lines
2.1 KiB
C
83 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* OPL4 mixer functions
|
|
* Copyright (c) 2003 by Clemens Ladisch <clemens@ladisch.de>
|
|
*/
|
|
|
|
#include "opl4_local.h"
|
|
#include <sound/control.h>
|
|
|
|
static int snd_opl4_ctl_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
|
|
{
|
|
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
|
|
uinfo->count = 2;
|
|
uinfo->value.integer.min = 0;
|
|
uinfo->value.integer.max = 7;
|
|
return 0;
|
|
}
|
|
|
|
static int snd_opl4_ctl_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct snd_opl4 *opl4 = snd_kcontrol_chip(kcontrol);
|
|
unsigned long flags;
|
|
u8 reg = kcontrol->private_value;
|
|
u8 value;
|
|
|
|
spin_lock_irqsave(&opl4->reg_lock, flags);
|
|
value = snd_opl4_read(opl4, reg);
|
|
spin_unlock_irqrestore(&opl4->reg_lock, flags);
|
|
ucontrol->value.integer.value[0] = 7 - (value & 7);
|
|
ucontrol->value.integer.value[1] = 7 - ((value >> 3) & 7);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_opl4_ctl_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct snd_opl4 *opl4 = snd_kcontrol_chip(kcontrol);
|
|
unsigned long flags;
|
|
u8 reg = kcontrol->private_value;
|
|
u8 value, old_value;
|
|
|
|
value = (7 - (ucontrol->value.integer.value[0] & 7)) |
|
|
((7 - (ucontrol->value.integer.value[1] & 7)) << 3);
|
|
spin_lock_irqsave(&opl4->reg_lock, flags);
|
|
old_value = snd_opl4_read(opl4, reg);
|
|
snd_opl4_write(opl4, reg, value);
|
|
spin_unlock_irqrestore(&opl4->reg_lock, flags);
|
|
return value != old_value;
|
|
}
|
|
|
|
static struct snd_kcontrol_new snd_opl4_controls[] = {
|
|
{
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.name = "FM Playback Volume",
|
|
.info = snd_opl4_ctl_info,
|
|
.get = snd_opl4_ctl_get,
|
|
.put = snd_opl4_ctl_put,
|
|
.private_value = OPL4_REG_MIX_CONTROL_FM
|
|
},
|
|
{
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.name = "Wavetable Playback Volume",
|
|
.info = snd_opl4_ctl_info,
|
|
.get = snd_opl4_ctl_get,
|
|
.put = snd_opl4_ctl_put,
|
|
.private_value = OPL4_REG_MIX_CONTROL_PCM
|
|
}
|
|
};
|
|
|
|
int snd_opl4_create_mixer(struct snd_opl4 *opl4)
|
|
{
|
|
struct snd_card *card = opl4->card;
|
|
int i, err;
|
|
|
|
strcat(card->mixername, ",OPL4");
|
|
|
|
for (i = 0; i < 2; ++i) {
|
|
err = snd_ctl_add(card, snd_ctl_new1(&snd_opl4_controls[i], opl4));
|
|
if (err < 0)
|
|
return err;
|
|
}
|
|
return 0;
|
|
}
|