Orange Pi5 kernel

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Support for rfkill through the OLPC XO-1 laptop embedded controller
 *
 * Copyright (C) 2010 One Laptop per Child
 */
 
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/rfkill.h>
#include <linux/olpc-ec.h>
 
static bool card_blocked;
 
static int rfkill_set_block(void *data, bool blocked)
{
<------>unsigned char cmd;
<------>int r;
 
<------>if (blocked == card_blocked)
<------><------>return 0;
 
<------>if (blocked)
<------><------>cmd = EC_WLAN_ENTER_RESET;
<------>else
<------><------>cmd = EC_WLAN_LEAVE_RESET;
 
<------>r = olpc_ec_cmd(cmd, NULL, 0, NULL, 0);
<------>if (r == 0)
<------><------>card_blocked = blocked;
 
<------>return r;
}
 
static const struct rfkill_ops rfkill_ops = {
<------>.set_block = rfkill_set_block,
};
 
static int xo1_rfkill_probe(struct platform_device *pdev)
{
<------>struct rfkill *rfk;
<------>int r;
 
<------>rfk = rfkill_alloc(pdev->name, &pdev->dev, RFKILL_TYPE_WLAN,
<------><------><------>   &rfkill_ops, NULL);
<------>if (!rfk)
<------><------>return -ENOMEM;
 
<------>r = rfkill_register(rfk);
<------>if (r) {
<------><------>rfkill_destroy(rfk);
<------><------>return r;
<------>}
 
<------>platform_set_drvdata(pdev, rfk);
<------>return 0;
}
 
static int xo1_rfkill_remove(struct platform_device *pdev)
{
<------>struct rfkill *rfk = platform_get_drvdata(pdev);
<------>rfkill_unregister(rfk);
<------>rfkill_destroy(rfk);
<------>return 0;
}
 
static struct platform_driver xo1_rfkill_driver = {
<------>.driver = {
<------><------>.name = "xo1-rfkill",
<------>},
<------>.probe		= xo1_rfkill_probe,
<------>.remove		= xo1_rfkill_remove,
};
 
module_platform_driver(xo1_rfkill_driver);
 
MODULE_AUTHOR("Daniel Drake <dsd@laptop.org>");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:xo1-rfkill");