21 lines
598 B
C
21 lines
598 B
C
#include "syslib.h"
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/*===========================================================================*
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* sys_in *
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*===========================================================================*/
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int sys_in(port, value, type)
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int port; /* port address to read from */
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u32_t *value; /* pointer where to store value */
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int type; /* byte, word, long */
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{
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message m_io;
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int result;
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m_io.DIO_REQUEST = _DIO_INPUT | type;
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m_io.DIO_PORT = port;
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result = _kernel_call(SYS_DEVIO, &m_io);
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*value = m_io.DIO_VALUE;
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return(result);
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}
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