1 // SPDX-License-Identifier: GPL-2.0
2 // test ir decoder
3 //
4 // Copyright (C) 2018 Sean Young <sean@mess.org>
5 
6 #include <linux/bpf.h>
7 #include <linux/lirc.h>
8 #include <bpf/bpf_helpers.h>
9 
10 SEC("lirc_mode2")
bpf_decoder(unsigned int * sample)11 int bpf_decoder(unsigned int *sample)
12 {
13 	if (LIRC_IS_PULSE(*sample)) {
14 		unsigned int duration = LIRC_VALUE(*sample);
15 
16 		if (duration & 0x10000)
17 			bpf_rc_keydown(sample, 0x40, duration & 0xffff, 0);
18 		if (duration & 0x20000)
19 			bpf_rc_pointer_rel(sample, (duration >> 8) & 0xff,
20 					   duration & 0xff);
21 	}
22 
23 	return 0;
24 }
25 
26 char _license[] SEC("license") = "GPL";
27