mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-17 02:08:38 +00:00
58ddb937e1
Clarify documentation, fix a few more cases that could be broken by the change. Signed-off-by: Michal Suchanek <msuchanek@suse.de>
108 lines
2.1 KiB
C
108 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* (C) Copyright 2017
|
|
* Mario Six, Guntermann & Drunck GmbH, mario.six@gdsys.cc
|
|
*/
|
|
|
|
#define LOG_CATEGORY UCLASS_SYSINFO
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <sysinfo.h>
|
|
|
|
struct sysinfo_priv {
|
|
bool detected;
|
|
};
|
|
|
|
int sysinfo_get(struct udevice **devp)
|
|
{
|
|
int ret = uclass_first_device_err(UCLASS_SYSINFO, devp);
|
|
|
|
/*
|
|
* There is some very dodgy error handling in gazerbeam,
|
|
* do not return a device on error.
|
|
*/
|
|
if (ret)
|
|
*devp = NULL;
|
|
return ret;
|
|
}
|
|
|
|
int sysinfo_detect(struct udevice *dev)
|
|
{
|
|
int ret;
|
|
struct sysinfo_priv *priv = dev_get_uclass_priv(dev);
|
|
struct sysinfo_ops *ops = sysinfo_get_ops(dev);
|
|
|
|
if (!ops->detect)
|
|
return -ENOSYS;
|
|
|
|
ret = ops->detect(dev);
|
|
if (!ret)
|
|
priv->detected = true;
|
|
|
|
return ret;
|
|
}
|
|
|
|
int sysinfo_get_fit_loadable(struct udevice *dev, int index, const char *type,
|
|
const char **strp)
|
|
{
|
|
struct sysinfo_priv *priv = dev_get_uclass_priv(dev);
|
|
struct sysinfo_ops *ops = sysinfo_get_ops(dev);
|
|
|
|
if (!priv->detected)
|
|
return -EPERM;
|
|
|
|
if (!ops->get_fit_loadable)
|
|
return -ENOSYS;
|
|
|
|
return ops->get_fit_loadable(dev, index, type, strp);
|
|
}
|
|
|
|
int sysinfo_get_bool(struct udevice *dev, int id, bool *val)
|
|
{
|
|
struct sysinfo_priv *priv = dev_get_uclass_priv(dev);
|
|
struct sysinfo_ops *ops = sysinfo_get_ops(dev);
|
|
|
|
if (!priv->detected)
|
|
return -EPERM;
|
|
|
|
if (!ops->get_bool)
|
|
return -ENOSYS;
|
|
|
|
return ops->get_bool(dev, id, val);
|
|
}
|
|
|
|
int sysinfo_get_int(struct udevice *dev, int id, int *val)
|
|
{
|
|
struct sysinfo_priv *priv = dev_get_uclass_priv(dev);
|
|
struct sysinfo_ops *ops = sysinfo_get_ops(dev);
|
|
|
|
if (!priv->detected)
|
|
return -EPERM;
|
|
|
|
if (!ops->get_int)
|
|
return -ENOSYS;
|
|
|
|
return ops->get_int(dev, id, val);
|
|
}
|
|
|
|
int sysinfo_get_str(struct udevice *dev, int id, size_t size, char *val)
|
|
{
|
|
struct sysinfo_priv *priv = dev_get_uclass_priv(dev);
|
|
struct sysinfo_ops *ops = sysinfo_get_ops(dev);
|
|
|
|
if (!priv->detected)
|
|
return -EPERM;
|
|
|
|
if (!ops->get_str)
|
|
return -ENOSYS;
|
|
|
|
return ops->get_str(dev, id, size, val);
|
|
}
|
|
|
|
UCLASS_DRIVER(sysinfo) = {
|
|
.id = UCLASS_SYSINFO,
|
|
.name = "sysinfo",
|
|
.post_bind = dm_scan_fdt_dev,
|
|
.per_device_auto = sizeof(bool),
|
|
};
|