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Devices: add a new ConsoleDevice

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This new device is the userspace interface to the text console/tty.
This commit is contained in:
apio 2022-10-11 21:04:50 +02:00
parent b1fcfd0d74
commit e764647133
3 changed files with 36 additions and 0 deletions
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9
kernel/include/fs/devices/Console.h Normal file
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@ -0,0 +1,9 @@
#pragma once
#include "fs/VFS.h"
namespace ConsoleDevice
{
VFS::Node* create_new();
ssize_t write(VFS::Node* node, size_t offset, size_t size, const char* buffer);
}

25
kernel/src/fs/devices/Console.cpp Normal file
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@ -0,0 +1,25 @@
#include "fs/devices/Console.h"
#include "config.h"
#include "render/TextRenderer.h"
#include "std/stdio.h"
#include "std/stdlib.h"
#include "std/string.h"
VFS::Node* ConsoleDevice::create_new()
{
VFS::Node* dev = new VFS::Node;
dev->write_func = ConsoleDevice::write;
dev->inode = 0;
dev->length = 0;
dev->type = VFS_FILE;
dev->flags = 0;
strncpy(dev->name, "console", sizeof(dev->name));
return dev;
}
ssize_t ConsoleDevice::write(VFS::Node* node, size_t, size_t size, const char* buffer)
{
if (!node) return -1;
TextRenderer::write(buffer, size);
return (ssize_t)size;
}

2
kernel/src/fs/devices/DeviceFS.cpp
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@ -1,4 +1,5 @@
#include "fs/devices/DeviceFS.h"
#include "fs/devices/Console.h"
#include "fs/devices/Version.h"
#include "std/stdlib.h"
#include "std/string.h"
@ -21,6 +22,7 @@ VFS::Node* DeviceFS::get()
strncpy(devfs_root->name, "dev", sizeof(devfs_root->name));
devfs_files[devfs_file_count++] = VersionDevice::create_new();
devfs_files[devfs_file_count++] = ConsoleDevice::create_new();
return devfs_root;
}