forked from mfulz_github/qmk_firmware
65 lines
2.2 KiB
C
65 lines
2.2 KiB
C
/*
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The MIT License (MIT)
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Copyright (c) 2016 Fred Sundvik
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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#include "serial_link/protocol/frame_router.h"
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#include "serial_link/protocol/transport.h"
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#include "serial_link/protocol/frame_validator.h"
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static bool is_master;
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void router_set_master(bool master) { is_master = master; }
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void route_incoming_frame(uint8_t link, uint8_t* data, uint16_t size) {
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if (is_master) {
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if (link == DOWN_LINK) {
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transport_recv_frame(data[size - 1], data, size - 1);
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}
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} else {
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if (link == UP_LINK) {
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if (data[size - 1] & 1) {
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transport_recv_frame(0, data, size - 1);
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}
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data[size - 1] >>= 1;
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validator_send_frame(DOWN_LINK, data, size);
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} else {
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data[size - 1]++;
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validator_send_frame(UP_LINK, data, size);
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}
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}
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}
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void router_send_frame(uint8_t destination, uint8_t* data, uint16_t size) {
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if (destination == 0) {
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if (!is_master) {
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data[size] = 1;
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validator_send_frame(UP_LINK, data, size + 1);
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}
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} else {
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if (is_master) {
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data[size] = destination;
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validator_send_frame(DOWN_LINK, data, size + 1);
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}
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}
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}
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