linux-imx
Public
Source
committed 02a8c817a31x
* This should be called once the rc thread has been stopped, so there can be// SPDX-License-Identifier: GPL-2.0// bpf-lirc.c - handles bpf//// Copyright (C) 2018 Sean Young <sean@mess.org>/* * BPF interface for raw IR */const struct bpf_prog_ops lirc_mode2_prog_ops = {};BPF_CALL_1(bpf_rc_repeat, u32*, sample){ struct ir_raw_event_ctrl *ctrl; ctrl = container_of(sample, struct ir_raw_event_ctrl, bpf_sample); rc_repeat(ctrl->dev); return 0;}static const struct bpf_func_proto rc_repeat_proto = { .func = bpf_rc_repeat, .gpl_only = true, /* rc_repeat is EXPORT_SYMBOL_GPL */ .ret_type = RET_INTEGER, .arg1_type = ARG_PTR_TO_CTX,};/* * Currently rc-core does not support 64-bit scancodes, but there are many * known protocols with more than 32 bits. So, define the interface as u64 * as a future-proof. */BPF_CALL_4(bpf_rc_keydown, u32*, sample, u32, protocol, u64, scancode, u32, toggle){ struct ir_raw_event_ctrl *ctrl; ctrl = container_of(sample, struct ir_raw_event_ctrl, bpf_sample); rc_keydown(ctrl->dev, protocol, scancode, toggle != 0); return 0;}static const struct bpf_func_proto rc_keydown_proto = { .func = bpf_rc_keydown, .gpl_only = true, /* rc_keydown is EXPORT_SYMBOL_GPL */ .ret_type = RET_INTEGER, .arg1_type = ARG_PTR_TO_CTX, .arg2_type = ARG_ANYTHING, .arg3_type = ARG_ANYTHING, .arg4_type = ARG_ANYTHING,};BPF_CALL_3(bpf_rc_pointer_rel, u32*, sample, s32, rel_x, s32, rel_y){ struct ir_raw_event_ctrl *ctrl; ctrl = container_of(sample, struct ir_raw_event_ctrl, bpf_sample); input_report_rel(ctrl->dev->input_dev, REL_X, rel_x); input_report_rel(ctrl->dev->input_dev, REL_Y, rel_y); input_sync(ctrl->dev->input_dev); return 0;}static const struct bpf_func_proto rc_pointer_rel_proto = { .func = bpf_rc_pointer_rel, .gpl_only = true, .ret_type = RET_INTEGER, .arg1_type = ARG_PTR_TO_CTX, .arg2_type = ARG_ANYTHING, .arg3_type = ARG_ANYTHING,};static const struct bpf_func_proto *lirc_mode2_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog){ switch (func_id) { case BPF_FUNC_rc_repeat: return &rc_repeat_proto; case BPF_FUNC_rc_keydown: return &rc_keydown_proto; case BPF_FUNC_rc_pointer_rel: