linux/drivers/leds/simple/simatic-ipc-leds.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Siemens SIMATIC IPC driver for LEDs
 *
 * Copyright (c) Siemens AG, 2018-2021
 *
 * Authors:
 *  Henning Schild <[email protected]>
 *  Jan Kiszka <[email protected]>
 *  Gerd Haeussler <[email protected]>
 */

#include <linux/ioport.h>
#include <linux/kernel.h>
#include <linux/leds.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/platform_data/x86/simatic-ipc-base.h>
#include <linux/platform_device.h>
#include <linux/sizes.h>
#include <linux/spinlock.h>

#define SIMATIC_IPC_LED_PORT_BASE …

struct simatic_ipc_led { … };

static struct simatic_ipc_led simatic_ipc_leds_io[] = …;

static struct resource simatic_ipc_led_io_res = …;

static DEFINE_SPINLOCK(reg_lock);

static inline struct simatic_ipc_led *cdev_to_led(struct led_classdev *led_cd)
{ … }

static void simatic_ipc_led_set_io(struct led_classdev *led_cd,
				   enum led_brightness brightness)
{ … }

static enum led_brightness simatic_ipc_led_get_io(struct led_classdev *led_cd)
{ … }

static int simatic_ipc_leds_probe(struct platform_device *pdev)
{ … }

static struct platform_driver simatic_ipc_led_driver = …;
module_platform_driver(…) …;

MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;
MODULE_ALIAS(…) …;
MODULE_AUTHOR(…) …;