^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (c) 1999-2001 Vojtech Pavlik
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Input driver event debug module - dumps all events into syslog
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/input.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) MODULE_DESCRIPTION("Input driver event debug module");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) static void evbug_event(struct input_handle *handle, unsigned int type, unsigned int code, int value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) printk(KERN_DEBUG pr_fmt("Event. Dev: %s, Type: %d, Code: %d, Value: %d\n"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) dev_name(&handle->dev->dev), type, code, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) static int evbug_connect(struct input_handler *handler, struct input_dev *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) const struct input_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) struct input_handle *handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) if (!handle)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) handle->dev = dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) handle->handler = handler;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) handle->name = "evbug";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) error = input_register_handle(handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) goto err_free_handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) error = input_open_device(handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) goto err_unregister_handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) printk(KERN_DEBUG pr_fmt("Connected device: %s (%s at %s)\n"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) dev_name(&dev->dev),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) dev->name ?: "unknown",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) dev->phys ?: "unknown");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) err_unregister_handle:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) input_unregister_handle(handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) err_free_handle:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) kfree(handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) static void evbug_disconnect(struct input_handle *handle)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) printk(KERN_DEBUG pr_fmt("Disconnected device: %s\n"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) dev_name(&handle->dev->dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) input_close_device(handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) input_unregister_handle(handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) kfree(handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) static const struct input_device_id evbug_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) { .driver_info = 1 }, /* Matches all devices */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) { }, /* Terminating zero entry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) MODULE_DEVICE_TABLE(input, evbug_ids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) static struct input_handler evbug_handler = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) .event = evbug_event,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) .connect = evbug_connect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) .disconnect = evbug_disconnect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) .name = "evbug",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) .id_table = evbug_ids,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) static int __init evbug_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) return input_register_handler(&evbug_handler);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) static void __exit evbug_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) input_unregister_handler(&evbug_handler);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) module_init(evbug_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) module_exit(evbug_exit);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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