62 lines
1.9 KiB
C
62 lines
1.9 KiB
C
/* Megumin LED display firmware
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* Copyright (C) 2018 Sebastian Götte <code@jaseg.net>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __SERIAL_H__
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#define __SERIAL_H__
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#include "global.h"
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/* High-level stuff */
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void serial_init(void);
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void send_status_reply(void);
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/* Internal low-level stuff */
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void tx_char(uint8_t c);
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void send_frame_formatted(uint8_t *buf, int len);
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volatile uint8_t *packet_received(int len);
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/* Error counters for debugging */
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extern unsigned int uart_overruns;
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extern unsigned int invalid_frames;
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union tx_buf_union {
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struct __attribute__((packed)) {
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uint8_t firmware_version,
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hardware_version,
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pad[2];
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uint32_t uptime_s,
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framerate_millifps,
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uart_overruns,
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invalid_frames;
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int16_t vin_mv,
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v3v3_mv,
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iload_ma,
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temp_celsius;
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uint8_t global_brightness;
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} desc_reply;
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uint8_t byte_data[0];
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};
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union rx_buf_union {
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struct __attribute__((packed)) { uint8_t fb[32]; uint8_t end[0]; } set_fb_rq;
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struct __attribute__((packed)) { uint8_t brightness; uint8_t end[0]; } set_global_brightness;
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uint8_t byte_data[0];
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uint32_t mac_data;
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};
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extern volatile union rx_buf_union rx_buf;
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#endif/*__SERIAL_H__*/
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