AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-24 16:34:55 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity
bc0a5f43d7
linux_dsm_epyc7002/sound/pci/ak4531_codec.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

471 lines
16 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
* Universal routines for AK4531 codec
*/
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/mutex.h>
#include <linux/module.h>
#include <sound/core.h>
#include <sound/ak4531_codec.h>
#include <sound/tlv.h>
/*
MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
MODULE_DESCRIPTION("Universal routines for AK4531 codec");
MODULE_LICENSE("GPL");
*/
static void snd_ak4531_proc_init(struct snd_card *card, struct snd_ak4531 *ak4531);
/*
*
*/
#if 0
static void snd_ak4531_dump(struct snd_ak4531 *ak4531)
{
int idx;
for (idx = 0; idx < 0x19; idx++)
printk(KERN_DEBUG "ak4531 0x%x: 0x%x\n",
idx, ak4531->regs[idx]);
}
#endif
/*
*
*/
#define AK4531_SINGLE(xname, xindex, reg, shift, mask, invert) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
.info = snd_ak4531_info_single, \
.get = snd_ak4531_get_single, .put = snd_ak4531_put_single, \
.private_value = reg | (shift << 16) | (mask << 24) | (invert << 22) }
#define AK4531_SINGLE_TLV(xname, xindex, reg, shift, mask, invert, xtlv) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
.name = xname, .index = xindex, \
.info = snd_ak4531_info_single, \
.get = snd_ak4531_get_single, .put = snd_ak4531_put_single, \
.private_value = reg | (shift << 16) | (mask << 24) | (invert << 22), \
.tlv = { .p = (xtlv) } }
static int snd_ak4531_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
int mask = (kcontrol->private_value >> 24) & 0xff;
uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 1;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = mask;
return 0;
}
static int snd_ak4531_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
int reg = kcontrol->private_value & 0xff;
int shift = (kcontrol->private_value >> 16) & 0x07;
int mask = (kcontrol->private_value >> 24) & 0xff;
int invert = (kcontrol->private_value >> 22) & 1;
int val;
mutex_lock(&ak4531->reg_mutex);
val = (ak4531->regs[reg] >> shift) & mask;
mutex_unlock(&ak4531->reg_mutex);
if (invert) {
val = mask - val;
}
ucontrol->value.integer.value[0] = val;
return 0;
}
static int snd_ak4531_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
int reg = kcontrol->private_value & 0xff;
int shift = (kcontrol->private_value >> 16) & 0x07;
int mask = (kcontrol->private_value >> 24) & 0xff;
int invert = (kcontrol->private_value >> 22) & 1;
int change;
int val;
val = ucontrol->value.integer.value[0] & mask;
if (invert) {
val = mask - val;
}
val <<= shift;
mutex_lock(&ak4531->reg_mutex);
val = (ak4531->regs[reg] & ~(mask << shift)) | val;
change = val != ak4531->regs[reg];
ak4531->write(ak4531, reg, ak4531->regs[reg] = val);
mutex_unlock(&ak4531->reg_mutex);
return change;
}
#define AK4531_DOUBLE(xname, xindex, left_reg, right_reg, left_shift, right_shift, mask, invert) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
.info = snd_ak4531_info_double, \
.get = snd_ak4531_get_double, .put = snd_ak4531_put_double, \
.private_value = left_reg | (right_reg << 8) | (left_shift << 16) | (right_shift << 19) | (mask << 24) | (invert << 22) }
#define AK4531_DOUBLE_TLV(xname, xindex, left_reg, right_reg, left_shift, right_shift, mask, invert, xtlv) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
.name = xname, .index = xindex, \
.info = snd_ak4531_info_double, \
.get = snd_ak4531_get_double, .put = snd_ak4531_put_double, \
.private_value = left_reg | (right_reg << 8) | (left_shift << 16) | (right_shift << 19) | (mask << 24) | (invert << 22), \
.tlv = { .p = (xtlv) } }
static int snd_ak4531_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
int mask = (kcontrol->private_value >> 24) & 0xff;
uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 2;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = mask;
return 0;
}
static int snd_ak4531_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
int left_reg = kcontrol->private_value & 0xff;
int right_reg = (kcontrol->private_value >> 8) & 0xff;
int left_shift = (kcontrol->private_value >> 16) & 0x07;
int right_shift = (kcontrol->private_value >> 19) & 0x07;
int mask = (kcontrol->private_value >> 24) & 0xff;
int invert = (kcontrol->private_value >> 22) & 1;
int left, right;
mutex_lock(&ak4531->reg_mutex);
left = (ak4531->regs[left_reg] >> left_shift) & mask;
right = (ak4531->regs[right_reg] >> right_shift) & mask;
mutex_unlock(&ak4531->reg_mutex);
if (invert) {
left = mask - left;
right = mask - right;
}
ucontrol->value.integer.value[0] = left;
ucontrol->value.integer.value[1] = right;
return 0;
}
static int snd_ak4531_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
int left_reg = kcontrol->private_value & 0xff;
int right_reg = (kcontrol->private_value >> 8) & 0xff;
int left_shift = (kcontrol->private_value >> 16) & 0x07;
int right_shift = (kcontrol->private_value >> 19) & 0x07;
int mask = (kcontrol->private_value >> 24) & 0xff;
int invert = (kcontrol->private_value >> 22) & 1;
int change;
int left, right;
left = ucontrol->value.integer.value[0] & mask;
right = ucontrol->value.integer.value[1] & mask;
if (invert) {
left = mask - left;
right = mask - right;
}
left <<= left_shift;
right <<= right_shift;
mutex_lock(&ak4531->reg_mutex);
if (left_reg == right_reg) {
left = (ak4531->regs[left_reg] & ~((mask << left_shift) | (mask << right_shift))) | left | right;
change = left != ak4531->regs[left_reg];
ak4531->write(ak4531, left_reg, ak4531->regs[left_reg] = left);
} else {
left = (ak4531->regs[left_reg] & ~(mask << left_shift)) | left;
right = (ak4531->regs[right_reg] & ~(mask << right_shift)) | right;
change = left != ak4531->regs[left_reg] || right != ak4531->regs[right_reg];
ak4531->write(ak4531, left_reg, ak4531->regs[left_reg] = left);
ak4531->write(ak4531, right_reg, ak4531->regs[right_reg] = right);
}
mutex_unlock(&ak4531->reg_mutex);
return change;
}
#define AK4531_INPUT_SW(xname, xindex, reg1, reg2, left_shift, right_shift) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
.info = snd_ak4531_info_input_sw, \
.get = snd_ak4531_get_input_sw, .put = snd_ak4531_put_input_sw, \
.private_value = reg1 | (reg2 << 8) | (left_shift << 16) | (right_shift << 24) }
static int snd_ak4531_info_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
uinfo->count = 4;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = 1;
return 0;
}
static int snd_ak4531_get_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
int reg1 = kcontrol->private_value & 0xff;
int reg2 = (kcontrol->private_value >> 8) & 0xff;
int left_shift = (kcontrol->private_value >> 16) & 0x0f;
int right_shift = (kcontrol->private_value >> 24) & 0x0f;
mutex_lock(&ak4531->reg_mutex);
ucontrol->value.integer.value[0] = (ak4531->regs[reg1] >> left_shift) & 1;
ucontrol->value.integer.value[1] = (ak4531->regs[reg2] >> left_shift) & 1;
ucontrol->value.integer.value[2] = (ak4531->regs[reg1] >> right_shift) & 1;
ucontrol->value.integer.value[3] = (ak4531->regs[reg2] >> right_shift) & 1;
mutex_unlock(&ak4531->reg_mutex);
return 0;
}
static int snd_ak4531_put_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
int reg1 = kcontrol->private_value & 0xff;
int reg2 = (kcontrol->private_value >> 8) & 0xff;
int left_shift = (kcontrol->private_value >> 16) & 0x0f;
int right_shift = (kcontrol->private_value >> 24) & 0x0f;
int change;
int val1, val2;
mutex_lock(&ak4531->reg_mutex);
val1 = ak4531->regs[reg1] & ~((1 << left_shift) | (1 << right_shift));
val2 = ak4531->regs[reg2] & ~((1 << left_shift) | (1 << right_shift));
val1 |= (ucontrol->value.integer.value[0] & 1) << left_shift;
val2 |= (ucontrol->value.integer.value[1] & 1) << left_shift;
val1 |= (ucontrol->value.integer.value[2] & 1) << right_shift;
val2 |= (ucontrol->value.integer.value[3] & 1) << right_shift;
change = val1 != ak4531->regs[reg1] || val2 != ak4531->regs[reg2];
ak4531->write(ak4531, reg1, ak4531->regs[reg1] = val1);
ak4531->write(ak4531, reg2, ak4531->regs[reg2] = val2);
mutex_unlock(&ak4531->reg_mutex);
return change;
}
static const DECLARE_TLV_DB_SCALE(db_scale_master, -6200, 200, 0);
static const DECLARE_TLV_DB_SCALE(db_scale_mono, -2800, 400, 0);
static const DECLARE_TLV_DB_SCALE(db_scale_input, -5000, 200, 0);
static struct snd_kcontrol_new snd_ak4531_controls[] = {
AK4531_DOUBLE_TLV("Master Playback Switch", 0,
AK4531_LMASTER, AK4531_RMASTER, 7, 7, 1, 1,
db_scale_master),
AK4531_DOUBLE("Master Playback Volume", 0, AK4531_LMASTER, AK4531_RMASTER, 0, 0, 0x1f, 1),
AK4531_SINGLE_TLV("Master Mono Playback Switch", 0, AK4531_MONO_OUT, 7, 1, 1,
db_scale_mono),
AK4531_SINGLE("Master Mono Playback Volume", 0, AK4531_MONO_OUT, 0, 0x07, 1),
AK4531_DOUBLE("PCM Switch", 0, AK4531_LVOICE, AK4531_RVOICE, 7, 7, 1, 1),
AK4531_DOUBLE_TLV("PCM Volume", 0, AK4531_LVOICE, AK4531_RVOICE, 0, 0, 0x1f, 1,
db_scale_input),
AK4531_DOUBLE("PCM Playback Switch", 0, AK4531_OUT_SW2, AK4531_OUT_SW2, 3, 2, 1, 0),
AK4531_DOUBLE("PCM Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 2, 2, 1, 0),
AK4531_DOUBLE("PCM Switch", 1, AK4531_LFM, AK4531_RFM, 7, 7, 1, 1),
AK4531_DOUBLE_TLV("PCM Volume", 1, AK4531_LFM, AK4531_RFM, 0, 0, 0x1f, 1,
db_scale_input),
AK4531_DOUBLE("PCM Playback Switch", 1, AK4531_OUT_SW1, AK4531_OUT_SW1, 6, 5, 1, 0),
AK4531_INPUT_SW("PCM Capture Route", 1, AK4531_LIN_SW1, AK4531_RIN_SW1, 6, 5),
AK4531_DOUBLE("CD Switch", 0, AK4531_LCD, AK4531_RCD, 7, 7, 1, 1),
AK4531_DOUBLE_TLV("CD Volume", 0, AK4531_LCD, AK4531_RCD, 0, 0, 0x1f, 1,
db_scale_input),
AK4531_DOUBLE("CD Playback Switch", 0, AK4531_OUT_SW1, AK4531_OUT_SW1, 2, 1, 1, 0),
AK4531_INPUT_SW("CD Capture Route", 0, AK4531_LIN_SW1, AK4531_RIN_SW1, 2, 1),
AK4531_DOUBLE("Line Switch", 0, AK4531_LLINE, AK4531_RLINE, 7, 7, 1, 1),
AK4531_DOUBLE_TLV("Line Volume", 0, AK4531_LLINE, AK4531_RLINE, 0, 0, 0x1f, 1,
db_scale_input),
AK4531_DOUBLE("Line Playback Switch", 0, AK4531_OUT_SW1, AK4531_OUT_SW1, 4, 3, 1, 0),
AK4531_INPUT_SW("Line Capture Route", 0, AK4531_LIN_SW1, AK4531_RIN_SW1, 4, 3),
AK4531_DOUBLE("Aux Switch", 0, AK4531_LAUXA, AK4531_RAUXA, 7, 7, 1, 1),
AK4531_DOUBLE_TLV("Aux Volume", 0, AK4531_LAUXA, AK4531_RAUXA, 0, 0, 0x1f, 1,
db_scale_input),
AK4531_DOUBLE("Aux Playback Switch", 0, AK4531_OUT_SW2, AK4531_OUT_SW2, 5, 4, 1, 0),
AK4531_INPUT_SW("Aux Capture Route", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 4, 3),
AK4531_SINGLE("Mono Switch", 0, AK4531_MONO1, 7, 1, 1),
AK4531_SINGLE_TLV("Mono Volume", 0, AK4531_MONO1, 0, 0x1f, 1, db_scale_input),
AK4531_SINGLE("Mono Playback Switch", 0, AK4531_OUT_SW2, 0, 1, 0),
AK4531_DOUBLE("Mono Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 0, 0, 1, 0),
AK4531_SINGLE("Mono Switch", 1, AK4531_MONO2, 7, 1, 1),
AK4531_SINGLE_TLV("Mono Volume", 1, AK4531_MONO2, 0, 0x1f, 1, db_scale_input),
AK4531_SINGLE("Mono Playback Switch", 1, AK4531_OUT_SW2, 1, 1, 0),
AK4531_DOUBLE("Mono Capture Switch", 1, AK4531_LIN_SW2, AK4531_RIN_SW2, 1, 1, 1, 0),
AK4531_SINGLE_TLV("Mic Volume", 0, AK4531_MIC, 0, 0x1f, 1, db_scale_input),
AK4531_SINGLE("Mic Switch", 0, AK4531_MIC, 7, 1, 1),
AK4531_SINGLE("Mic Playback Switch", 0, AK4531_OUT_SW1, 0, 1, 0),
AK4531_DOUBLE("Mic Capture Switch", 0, AK4531_LIN_SW1, AK4531_RIN_SW1, 0, 0, 1, 0),
AK4531_DOUBLE("Mic Bypass Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 7, 7, 1, 0),
AK4531_DOUBLE("Mono1 Bypass Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 6, 6, 1, 0),
AK4531_DOUBLE("Mono2 Bypass Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 5, 5, 1, 0),
AK4531_SINGLE("AD Input Select", 0, AK4531_AD_IN, 0, 1, 0),
AK4531_SINGLE("Mic Boost (+30dB)", 0, AK4531_MIC_GAIN, 0, 1, 0)
};
static int snd_ak4531_free(struct snd_ak4531 *ak4531)
{
if (ak4531) {
if (ak4531->private_free)
ak4531->private_free(ak4531);
kfree(ak4531);
}
return 0;
}
static int snd_ak4531_dev_free(struct snd_device *device)
{
struct snd_ak4531 *ak4531 = device->device_data;
return snd_ak4531_free(ak4531);
}
static u8 snd_ak4531_initial_map[0x19 + 1] = {
0x9f, /* 00: Master Volume Lch */
0x9f, /* 01: Master Volume Rch */
0x9f, /* 02: Voice Volume Lch */
0x9f, /* 03: Voice Volume Rch */
0x9f, /* 04: FM Volume Lch */
0x9f, /* 05: FM Volume Rch */
0x9f, /* 06: CD Audio Volume Lch */
0x9f, /* 07: CD Audio Volume Rch */
0x9f, /* 08: Line Volume Lch */
0x9f, /* 09: Line Volume Rch */
0x9f, /* 0a: Aux Volume Lch */
0x9f, /* 0b: Aux Volume Rch */
0x9f, /* 0c: Mono1 Volume */
0x9f, /* 0d: Mono2 Volume */
0x9f, /* 0e: Mic Volume */
0x87, /* 0f: Mono-out Volume */
0x00, /* 10: Output Mixer SW1 */
0x00, /* 11: Output Mixer SW2 */
0x00, /* 12: Lch Input Mixer SW1 */
0x00, /* 13: Rch Input Mixer SW1 */
0x00, /* 14: Lch Input Mixer SW2 */
0x00, /* 15: Rch Input Mixer SW2 */
0x00, /* 16: Reset & Power Down */
0x00, /* 17: Clock Select */
0x00, /* 18: AD Input Select */
0x01 /* 19: Mic Amp Setup */
};
int snd_ak4531_mixer(struct snd_card *card,
struct snd_ak4531 *_ak4531,
struct snd_ak4531 **rak4531)
{
unsigned int idx;
int err;
struct snd_ak4531 *ak4531;
static struct snd_device_ops ops = {
.dev_free = snd_ak4531_dev_free,
};
if (snd_BUG_ON(!card || !_ak4531))
return -EINVAL;
if (rak4531)
*rak4531 = NULL;
ak4531 = kzalloc(sizeof(*ak4531), GFP_KERNEL);
if (ak4531 == NULL)
return -ENOMEM;
*ak4531 = *_ak4531;
mutex_init(&ak4531->reg_mutex);
if ((err = snd_component_add(card, "AK4531")) < 0) {
snd_ak4531_free(ak4531);
return err;
}
strcpy(card->mixername, "Asahi Kasei AK4531");
ak4531->write(ak4531, AK4531_RESET, 0x03); /* no RST, PD */
udelay(100);
ak4531->write(ak4531, AK4531_CLOCK, 0x00); /* CODEC ADC and CODEC DAC use {LR,B}CLK2 and run off LRCLK2 PLL */
for (idx = 0; idx <= 0x19; idx++) {
if (idx == AK4531_RESET || idx == AK4531_CLOCK)
continue;
ak4531->write(ak4531, idx, ak4531->regs[idx] = snd_ak4531_initial_map[idx]); /* recording source is mixer */
}
for (idx = 0; idx < ARRAY_SIZE(snd_ak4531_controls); idx++) {
if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ak4531_controls[idx], ak4531))) < 0) {
snd_ak4531_free(ak4531);
return err;
}
}
snd_ak4531_proc_init(card, ak4531);
if ((err = snd_device_new(card, SNDRV_DEV_CODEC, ak4531, &ops)) < 0) {
snd_ak4531_free(ak4531);
return err;
}
#if 0
snd_ak4531_dump(ak4531);
#endif
if (rak4531)
*rak4531 = ak4531;
return 0;
}
/*
* power management
*/
#ifdef CONFIG_PM
void snd_ak4531_suspend(struct snd_ak4531 *ak4531)
{
/* mute */
ak4531->write(ak4531, AK4531_LMASTER, 0x9f);
ak4531->write(ak4531, AK4531_RMASTER, 0x9f);
/* powerdown */
ak4531->write(ak4531, AK4531_RESET, 0x01);
}
void snd_ak4531_resume(struct snd_ak4531 *ak4531)
{
int idx;
/* initialize */
ak4531->write(ak4531, AK4531_RESET, 0x03);
udelay(100);
ak4531->write(ak4531, AK4531_CLOCK, 0x00);
/* restore mixer registers */
for (idx = 0; idx <= 0x19; idx++) {
if (idx == AK4531_RESET || idx == AK4531_CLOCK)
continue;
ak4531->write(ak4531, idx, ak4531->regs[idx]);
}
}
#endif
/*
* /proc interface
*/
static void snd_ak4531_proc_read(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
struct snd_ak4531 *ak4531 = entry->private_data;
snd_iprintf(buffer, "Asahi Kasei AK4531\n\n");
snd_iprintf(buffer, "Recording source : %s\n"
"MIC gain : %s\n",
ak4531->regs[AK4531_AD_IN] & 1 ? "external" : "mixer",
ak4531->regs[AK4531_MIC_GAIN] & 1 ? "+30dB" : "+0dB");
}
static void
snd_ak4531_proc_init(struct snd_card *card, struct snd_ak4531 *ak4531)
{
snd_card_ro_proc_new(card, "ak4531", ak4531, snd_ak4531_proc_read);
}
Reference in New Issue View Git Blame Copy Permalink