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/* SPDX-License-Identifier: GPL-3.0-or-later */
/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
#ifndef APOS_SYSCALLS_H
#define APOS_SYSCALLS_H
/**
* @file syscalls.h
* Table of system calls.
*/
/** enum for now, possibly macros in the future once I get an approximate idea of
* which syscalls are necessary etc. */
enum {
/**
* @name Misc.
* Implementation in \ref dispatch.c instead of a separate file, as I
* consider them 'internal' and not intended for users.
*/
/** @{ */
/** Noop, mainly for testing syscall subsystem and sanity checking. */
SYS_NOOP,
/**
* Put a single character to the serial lines.
* Do not rely on this actually working, as the serial drivers are only
* included on debugging kernels.
*
* \todo Should serial drivers be always included and debugging mode
* turned into whether \ref info is turned on or off or something?
*/
SYS_PUTCH,
/** @} */
/* @name Memory management. */
/** @{ */
/** Request memory from anywhere. */
SYS_REQ_MEM,
/** Request memory with physical address. */
SYS_REQ_PMEM,
/** Request memory at fixed virtual address. */
SYS_REQ_FIXMEM,
/** Free memory. */
SYS_FREE_MEM,
/** @} */
/** @name Timers */
/** @{ */
/** Get accuracy of clock in Hertz. */
SYS_TIMEBASE,
/** Get current ticks. */
SYS_TICKS,
/** Request relative timer (number of ticks from now). */
SYS_REQ_REL_TIMER,
/** Request absolute timer (timepoint in ticks). */
SYS_REQ_ABS_TIMER,
/** Remove timer. */
SYS_FREE_TIMER,
/** @} */
/** @name IPC. */
/** @{ */
/** Inform kernel that process should be treated as server. */
SYS_IPC_SERVER,
/** Send IPC request as client. */
SYS_IPC_REQ, /* IPC request to server */
/** Forward IPC request from client. */
SYS_IPC_FWD,
/** IPC response from server. */
SYS_IPC_RESP,
/** @} */
/** @name Process management. */
/** @{ */
/** Create new thread. */
SYS_CREATE,
/** Duplicate process. */
SYS_FORK,
/** Execute new binary in process space. */
SYS_EXEC,
/** Kill thread. */
SYS_KILL,
/** Switch running process. */
SYS_SWAP,
/** @} */
/** @name Kernel management. */
/** @{ */
/** Configure system parameters (stack size etc.). */
SYS_CONF_SET,
/** Get system parameters. */
SYS_CONF_GET,
/** Shutdown, reboot, etc. */
SYS_POWEROFF,
/** @} */
};
/* function declarations should be somewhere else, this file could be used in
* userspace applications as well */
#endif /* APOS_SYSCALLS_H */
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