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// Creator: Dan Gisselquist, Ph.D.
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// Creator: Dan Gisselquist, Ph.D.
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// Gisselquist Technology, LLC
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// Gisselquist Technology, LLC
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//
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//
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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//
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//
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// Copyright (C) 2015-2016, Gisselquist Technology, LLC
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// Copyright (C) 2015-2017, Gisselquist Technology, LLC
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//
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//
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// This program is free software (firmware): you can redistribute it and/or
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// This program is free software (firmware): you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as published
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// modify it under the terms of the GNU General Public License as published
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// by the Free Software Foundation, either version 3 of the License, or (at
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// by the Free Software Foundation, either version 3 of the License, or (at
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// your option) any later version.
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// your option) any later version.
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//
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//
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//
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//
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#ifndef SYSPIPE_H
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#ifndef SYSPIPE_H
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#define SYSPIPE_H
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#define SYSPIPE_H
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extern void *sys_malloc(int sz);
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typedef unsigned size_t;
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extern void *sys_malloc(size_t sz);
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typedef struct {
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typedef struct {
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unsigned int m_mask;
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unsigned int m_mask;
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int m_head, m_tail;
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int m_head, m_tail;
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volatile TASKP m_rdtask, m_wrtask;
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volatile TASKP m_rdtask, m_wrtask;
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unsigned int m_nread, m_nwritten;
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unsigned int m_nread, m_nwritten;
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int dummy;
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int dummy;
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int m_error;
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int m_error;
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int m_buf[1];
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char m_buf[1];
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} SYSPIPE;
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} SYSPIPE;
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SYSPIPE *new_syspipe(const unsigned int len);
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SYSPIPE *new_syspipe(const unsigned int len);
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extern void kread_syspipe( TASKP tsk, int dev, int *dst, int len);
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extern void kread_syspipe( TASKP tsk, int dev, char *dst, int len);
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extern void kwrite_syspipe(TASKP tsk, int dev, int *src, int len);
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extern void kwrite_syspipe(TASKP tsk, int dev, char *src, int len);
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void kpush_syspipe(SYSPIPE *p, int val);
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void kpush_syspipe(SYSPIPE *p, char val);
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int kpop_syspipe(SYSPIPE *p, int *val);
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int kpop_syspipe(SYSPIPE *p, char *val);
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int kpop_short_syspipe(SYSPIPE *p, unsigned short *val);
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extern int num_avail_syspipe(SYSPIPE *p);
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extern int num_avail_syspipe(SYSPIPE *p);
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extern int len_syspipe(SYSPIPE *p);
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extern int len_syspipe(SYSPIPE *p);
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#define INTERRUPT_READ_TASK ((TASKP)((unsigned)-1))
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#define INTERRUPT_READ_TASK ((TASKP)((unsigned)-1))
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// #define INTERRUPT_WRITE_TASK ((TASKP)((unsigned)-1))
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// #define INTERRUPT_WRITE_TASK ((TASKP)((unsigned)-1))
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