From 35685c20a5dc299edf6f3b76ed898a2e71d0e457 Mon Sep 17 00:00:00 2001 From: Jake Mannens Date: Sat, 14 Jul 2018 03:42:12 +1000 Subject: con_init() is now called during the kernel's boot sequence in kboot() rather than in kmain() as some subsystems may now require early console I/O. Added 16-bit read/write I/O functions to asm/io.h. These functions are inw() and outw() respectively. Added the file kernel/fs.h which will contain definitions relating to filesystem functions. Defined the type off_t as a signed 32-bit value in sys/types.h. This type will be required for filesystem functionality. Added the directory 'kernel/fs' to the project's source tree. The kernel's makefile has been updated accordingly. This directory will contain any source files relating to filesystem functionality (both assembly and C files). Added the file 'fs/hd.c' to the kernel's source tree. This file currently contains three main functions (which are defined in kernel/hd.h). These functions are as follows; hd_init() to enumerate and initialize the hard disks, hd_read() to read sectors from the disk and hd_write() to write sectors to the disk. Currently, all transfers are done in ATA PIO mode using polling, however this will change in future. The function hd_init() is called during the kernel's boot sequence in kboot(). Added the file hd.img to the project's root directory. This is a 20MB raw image file that will be used by Qemu as a 20MB hard disk. The main makefile has been updated to tell Qemu to use this file on launch. --- hd.img | Bin 0 -> 20971520 bytes 1 file changed, 0 insertions(+), 0 deletions(-) create mode 100644 hd.img (limited to 'hd.img') diff --git a/hd.img b/hd.img new file mode 100644 index 0000000..0ab36b5 Binary files /dev/null and b/hd.img differ -- cgit v1.3