mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
120 lines
3.0 KiB
120 lines
3.0 KiB
// SPDX-License-Identifier: GPL-2.0-only |
|
/* |
|
* Copyright (C) 2016 Robert Jarzmik <[email protected]> |
|
*/ |
|
|
|
#include <linux/list.h> |
|
#include <linux/slab.h> |
|
#include <sound/ac97/codec.h> |
|
#include <sound/ac97/compat.h> |
|
#include <sound/ac97/controller.h> |
|
#include <sound/soc.h> |
|
|
|
#include "ac97_core.h" |
|
|
|
static void compat_ac97_release(struct device *dev) |
|
{ |
|
kfree(to_ac97_t(dev)); |
|
} |
|
|
|
static void compat_ac97_reset(struct snd_ac97 *ac97) |
|
{ |
|
struct ac97_codec_device *adev = to_ac97_device(ac97->private_data); |
|
struct ac97_controller *actrl = adev->ac97_ctrl; |
|
|
|
if (actrl->ops->reset) |
|
actrl->ops->reset(actrl); |
|
} |
|
|
|
static void compat_ac97_warm_reset(struct snd_ac97 *ac97) |
|
{ |
|
struct ac97_codec_device *adev = to_ac97_device(ac97->private_data); |
|
struct ac97_controller *actrl = adev->ac97_ctrl; |
|
|
|
if (actrl->ops->warm_reset) |
|
actrl->ops->warm_reset(actrl); |
|
} |
|
|
|
static void compat_ac97_write(struct snd_ac97 *ac97, unsigned short reg, |
|
unsigned short val) |
|
{ |
|
struct ac97_codec_device *adev = to_ac97_device(ac97->private_data); |
|
struct ac97_controller *actrl = adev->ac97_ctrl; |
|
|
|
actrl->ops->write(actrl, ac97->num, reg, val); |
|
} |
|
|
|
static unsigned short compat_ac97_read(struct snd_ac97 *ac97, |
|
unsigned short reg) |
|
{ |
|
struct ac97_codec_device *adev = to_ac97_device(ac97->private_data); |
|
struct ac97_controller *actrl = adev->ac97_ctrl; |
|
|
|
return actrl->ops->read(actrl, ac97->num, reg); |
|
} |
|
|
|
static const struct snd_ac97_bus_ops compat_snd_ac97_bus_ops = { |
|
.reset = compat_ac97_reset, |
|
.warm_reset = compat_ac97_warm_reset, |
|
.write = compat_ac97_write, |
|
.read = compat_ac97_read, |
|
}; |
|
|
|
static struct snd_ac97_bus compat_soc_ac97_bus = { |
|
.ops = &compat_snd_ac97_bus_ops, |
|
}; |
|
|
|
struct snd_ac97 *snd_ac97_compat_alloc(struct ac97_codec_device *adev) |
|
{ |
|
struct snd_ac97 *ac97; |
|
int ret; |
|
|
|
ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); |
|
if (ac97 == NULL) |
|
return ERR_PTR(-ENOMEM); |
|
|
|
ac97->private_data = adev; |
|
ac97->bus = &compat_soc_ac97_bus; |
|
|
|
ac97->dev.parent = &adev->dev; |
|
ac97->dev.release = compat_ac97_release; |
|
dev_set_name(&ac97->dev, "%s-compat", dev_name(&adev->dev)); |
|
ret = device_register(&ac97->dev); |
|
if (ret) { |
|
put_device(&ac97->dev); |
|
return ERR_PTR(ret); |
|
} |
|
|
|
return ac97; |
|
} |
|
EXPORT_SYMBOL_GPL(snd_ac97_compat_alloc); |
|
|
|
void snd_ac97_compat_release(struct snd_ac97 *ac97) |
|
{ |
|
device_unregister(&ac97->dev); |
|
} |
|
EXPORT_SYMBOL_GPL(snd_ac97_compat_release); |
|
|
|
int snd_ac97_reset(struct snd_ac97 *ac97, bool try_warm, unsigned int id, |
|
unsigned int id_mask) |
|
{ |
|
struct ac97_codec_device *adev = to_ac97_device(ac97->private_data); |
|
struct ac97_controller *actrl = adev->ac97_ctrl; |
|
unsigned int scanned; |
|
|
|
if (try_warm) { |
|
compat_ac97_warm_reset(ac97); |
|
scanned = snd_ac97_bus_scan_one(actrl, adev->num); |
|
if (ac97_ids_match(scanned, adev->vendor_id, id_mask)) |
|
return 1; |
|
} |
|
|
|
compat_ac97_reset(ac97); |
|
compat_ac97_warm_reset(ac97); |
|
scanned = snd_ac97_bus_scan_one(actrl, adev->num); |
|
if (ac97_ids_match(scanned, adev->vendor_id, id_mask)) |
|
return 0; |
|
|
|
return -ENODEV; |
|
} |
|
EXPORT_SYMBOL_GPL(snd_ac97_reset);
|
|
|