152 lines
4.1 KiB
C
152 lines
4.1 KiB
C
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/* blib - Library of useful things to hack the Blinkenlights
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*
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* Copyright (c) 2001-2003 The Blinkenlights Crew
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* Tim Pritlove <tim@ccc.de>
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* Sven Neumann <sven@gimp.org>
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* Michael Natterer <mitch@gimp.org>
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* Daniel Mack <daniel@yoobay.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 2 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, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __B_PROTOCOL_H__
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#define __B_PROTOCOL_H__
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#define MAGIC_MCU_SETUP 0x2342FEED /* MCU Configuration packet */
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#define MAGIC_MCU_FRAME 0x23542666 /* MCU Frame packet */
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#define MAGIC_MCU_DEVCTRL 0x23542667 /* MCU Device Control packet */
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#define MAGIC_BLFRAME 0xDEADBEEF /* Original BL Frame Packet */
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#define MAGIC_BLFRAME_256 0xFEEDBEEF /* Extendend BL Frame Packet (Greyscale) */
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#define MAGIC_HEARTBEAT 0x42424242 /* Heartbeat packet */
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#define MCU_LISTENER_PORT 2323
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#define MCU_ID_ANY -1
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#define B_HEARTBEAT_PORT 4242
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#define B_HEARTBEAT_INTERVAL 5000 /* Heartbeat interval in ms */
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/***********************************************************/
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/*
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* Legacy Blinkenlights bl_frame format
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*/
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typedef struct bl_frame_header bl_frame_header_t;
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struct bl_frame_header
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{
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guint32 frame_magic; /* == MAGIC_BLFRAME */
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guint32 frame_count;
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guint16 frame_width;
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guint16 frame_height;
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/*
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* followed by
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* unsigned char data[rows][columns];
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*/
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};
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/***********************************************************/
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/*
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* MCU Frame packet
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*/
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typedef struct mcu_frame_header mcu_frame_header_t;
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struct mcu_frame_header
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{
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guint32 magic; /* == MAGIC_MCU_FRAME */
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guint16 height; /* rows */
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guint16 width; /* columns */
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guint16 channels; /* Number of channels (mono/grey: 1, rgb: 3) */
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guint16 maxval; /* maximum pixel value (only 8 bits used) */
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/*
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* followed by
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* unsigned char data[rows][columns][channels];
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*/
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};
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/*
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* MCU Setup packet
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*/
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typedef struct mcu_setup_pixel mcu_setup_pixel_t;
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struct mcu_setup_pixel
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{
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unsigned char row;
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unsigned char column;
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};
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typedef struct mcu_setup_header mcu_setup_header_t;
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struct mcu_setup_header
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{
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guint32 magic; /* == MAGIC_MCU_SETUP */
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char mcu_id; /* target MCU id ( -1 = any) */
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unsigned char _reserved[3]; /* padding */
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guint16 height;
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guint16 width;
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guint16 channels;
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guint16 pixels; /* number of ports used (starting from 0) */
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/*
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* followed by
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* mcu_setup_pixel_t pixel[pixels];
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*/
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};
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/*
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* MCU Device Control packet
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*/
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#define MCU_DEVCTRL_OFF 0 /* switch device off */
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#define MCU_DEVCTRL_ON 1 /* switch device on */
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typedef struct mcu_devctrl_header mcu_devctrl_header_t;
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struct mcu_devctrl_header
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{
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guint32 magic; /* == MAGIC_MCU_DEVCTRL */
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guint16 pixels; /* number of pixels used (starting from 0) */
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guint16 _reserved; /* 32 bit padding */
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/*
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* followed by
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* unsigned char control[pixels];
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*/
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};
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/*
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* Heartbeat Packet
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*/
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typedef struct heartbeat_header heartbeat_header_t;
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struct heartbeat_header
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{
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guint32 magic; /* == MAGIC_HEARTBEAT */
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guint16 version; /* hearbeat protocol version number (0) */
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};
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#endif /* __B_PROTOCOL_H__ */
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