mirror of
https://github.com/MarlinFirmware/Marlin.git
synced 2024-12-18 16:27:17 +00:00
64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
|
/*
|
||
|
|
|
||
|
|
u8g_com_null.c
|
||
|
|
|
||
|
|
communication null device
|
||
|
|
|
||
|
|
Universal 8bit Graphics Library
|
||
|
|
|
||
|
|
Copyright (c) 2011, olikraus@gmail.com
|
||
|
|
All rights reserved.
|
||
|
|
|
||
|
|
Redistribution and use in source and binary forms, with or without modification,
|
||
|
|
are permitted provided that the following conditions are met:
|
||
|
|
|
||
|
|
* Redistributions of source code must retain the above copyright notice, this list
|
||
|
|
of conditions and the following disclaimer.
|
||
|
|
|
||
|
|
* Redistributions in binary form must reproduce the above copyright notice, this
|
||
|
|
list of conditions and the following disclaimer in the documentation and/or other
|
||
|
|
materials provided with the distribution.
|
||
|
|
|
||
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
|
||
|
|
CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
|
||
|
|
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||
|
|
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||
|
|
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||
|
|
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||
|
|
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||
|
|
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
||
|
|
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
||
|
|
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
||
|
|
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||
|
|
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
|
||
|
|
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||
|
|
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "u8g.h"
|
||
|
|
|
||
|
|
uint8_t u8g_com_null_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr)
|
||
|
|
{
|
||
|
|
switch(msg)
|
||
|
|
{
|
||
|
|
case U8G_COM_MSG_INIT:
|
||
|
|
break;
|
||
|
|
case U8G_COM_MSG_STOP:
|
||
|
|
break;
|
||
|
|
|
||
|
|
|
||
|
|
case U8G_COM_MSG_CHIP_SELECT:
|
||
|
|
/* arg_val contains the chip number, which should be enabled */
|
||
|
|
break;
|
||
|
|
|
||
|
|
|
||
|
|
case U8G_COM_MSG_WRITE_BYTE:
|
||
|
|
break;
|
||
|
|
case U8G_COM_MSG_WRITE_SEQ:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|