| 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") |
| 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 |