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io: kiss I/O thread goodbye

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Felix Kopp 2021-01-05 14:06:19 +01:00
parent e439172025
commit 3026bfe2f1
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GPG key ID: C478BA0A85F75728
3 changed files with 3 additions and 33 deletions
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3
arch/at91sam3x8e/Makefile
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@ -38,8 +38,7 @@ ARDIX_SOURCES += \
ARDIX_ASM_SOURCES += \
$(ARDIX_ARCH_PWD)/irq_pend_sv.S \
$(ARDIX_ARCH_PWD)/irq_svc.S \
$(ARDIX_ARCH_PWD)/syscall.S
$(ARDIX_ARCH_PWD)/irq_svc.S
CFLAGS += \
-DARCH_AT91SAM3X8E

12
include/ardix/io.h
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@ -6,21 +6,13 @@
#include <ardix/serial.h>
/**
* Initialize the I/O thread and subsystems.
* Must be called after all I/O components have been initialized.
* Initialize all basic I/O subsystems.
* After a successful return, printk() will be available.
*
* @returns 0 on success, or a negative number on failure.
*/
int io_init(void);
/**
* Update the hardware serial buffers if necessary.
* This includes copying to and from the main ring buffers.
*
* @param interface: The serial interface.
*/
void io_serial_buf_update(struct serial_interface *interface);
/*
* Copyright (c) 2020 Felix Kopp <sandtler@sandtler.club>
*

21
kernel/io/io.c
View file

@ -1,35 +1,14 @@
/* SPDX-License-Identifier: BSD-3-Clause */
/* See the end of this file for copyright, licensing, and warranty information. */
#include <arch/serial.h>
#include <ardix/io.h>
#include <ardix/sched.h>
#include <ardix/serial.h>
#include <toolchain.h>
static __naked void io_thread_entry(void)
{
while (1) {
io_serial_buf_update(serial_default_interface);
sched_yield(PROC_QUEUE);
}
}
int io_init(void)
{
int ret;
struct process *proc;
ret = serial_init(serial_default_interface, CONFIG_SERIAL_BAUD);
if (ret)
return ret;
proc = sched_process_create(&io_thread_entry);
if (proc == NULL)
ret = -1;
return ret;
}