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This commit adds a vtype field to the file creation arguments to allow
the underlying vnode type to be specified.
Signed-off-by: Ian Moffett <ian@osmora.org>
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Implements support for the tab ('\t') characters
Signed-off-by: Ian Moffett <ian@osmora.org>
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Signed-off-by: Ian Moffett <ian@osmora.org>
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The lseek() function allows the call to resposition the file offset
using a specific whence value to govern offsetting semantics
Signed-off-by: Ian Moffett <ian@osmora.org>
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Signed-off-by: Ian Moffett <ian@osmora.org>
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The vop_getattr() allows the caller to obtain information about a file
represented by a specific vnode
Signed-off-by: Ian Moffett <ian@osmora.org>
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Use the actual amount of bytes inside the tmpfs entry for the length
tracking.
Signed-off-by: Ian Moffett <ian@osmora.org>
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Signed-off-by: Ian Moffett <ian@osmora.org>
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Signed-off-by: Ian Moffett <ian@osmora.org>
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Signed-off-by: Ian Moffett <ian@osmora.org>
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Supported VOPs as of now:
- lookup()
- create()
- reclaim()
Signed-off-by: Ian Moffett <ian@osmora.org>
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Signed-off-by: Ian Moffett <ian@osmora.org>
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Add an O_CREAT flag to the ABI headers so that files can be created in
the VFS.
Signed-off-by: Ian Moffett <ian@osmora.org>
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Signed-off-by: Ian Moffett <ian@osmora.org>
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This commit adds supports for full lookups and path traversal when
FS_ATTR_IMAGE is unset. We've also added a NAMEI_CREATE flag to create
as it traverses.
Signed-off-by: Ian Moffett <ian@osmora.org>
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The create VOP allows the caller to create a node within the parent
directory of a filesystem represented by a vnode.
Signed-off-by: Ian Moffett <ian@osmora.org>
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Ensure that the trapframe in the PCB is the latest, upon kernel entry we
copy it so it isn't stale.
Signed-off-by: Ian Moffett <ian@osmora.org>
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Signed-off-by: Ian Moffett <ian@osmora.org>
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Signed-off-by: Ian Moffett <ian@osmora.org>
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Some hardware may not work too well with the i8042 and interrupts, as a
mitigation, we've added an option to poll instead of using interrupts
Signed-off-by: Ian Moffett <ian@osmora.org>
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There is no need to dequeue any processes in the idle loop as this
happens once per timer interrupt
Signed-off-by: Ian Moffett <ian@osmora.org>
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Some modules may rely on kernel threads, therefore we'll need the
scheduler up before we start them
Signed-off-by: Ian Moffett <ian@osmora.org>
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Improve naming to be less confusing
Signed-off-by: Ian Moffett <ian@osmora.org>
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Introduces kernel threads. by using the proc_ktd() function, one can
spawn a CPL 0 running thread to the desired code.
Signed-off-by: Ian Moffett <ian@osmora.org>
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Signed-off-by: Ian Moffett <ian@osmora.org>
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The reclaim callback simply reclaims any filesystem specific resources used with
vnodes back to the operating system.
Signed-off-by: Ian Moffett <ian@osmora.org>
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Signed-off-by: Ian Moffett <ian@osmora.org>
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Adds offset handling to the vnode read and write callbacks.
Signed-off-by: Ian Moffett <ian@osmora.org>
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Signed-off-by: Ian Moffett <ian@osmora.org>
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Signed-off-by: Ian Moffett <ian@osmora.org>
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If there is a file that is found, we want to return the result before we
return from the function, fixes issue with uninitialized vnodes on
lookups
Signed-off-by: Ian Moffett <ian@osmora.org>
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If we go through the entire function without getting a vnode, then there
is no file to be found
Signed-off-by: Ian Moffett <ian@osmora.org>
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Introduces a read callback wrapper implementation for vnodes to simplify
file reading
Signed-off-by: Ian Moffett <ian@osmora.org>
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Everytime a look up is performed, we should set the vnode operations on
the resulting vnode
Signed-off-by: Ian Moffett <ian@osmora.org>
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Signed-off-by: Ian Moffett <ian@osmora.org>
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Signed-off-by: Ian Moffett <ian@osmora.org>
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Signed-off-by: Ian Moffett <ian@osmora.org>
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Add a new QUERY operation code that is used to fetch information about a
specific disk.
Signed-off-by: Ian Moffett <ian@osmora.org>
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Signed-off-by: Ian Moffett <ian@osmora.org>
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The DMS engine handles performing I/O based on specific opcodes given to
it and drives the callback wrappers.
Signed-off-by: Ian Moffett <ian@osmora.org>
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Signed-off-by: Ian Moffett <ian@osmora.org>
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In order to safely copy between disk and host memory through a
programming interface, DMS must be aware of the hardware disk block size
Signed-off-by: Ian Moffett <ian@osmora.org>
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Signed-off-by: Ian Moffett <ian@osmora.org>
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Signed-off-by: Ian Moffett <ian@osmora.org>
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DMS stands for Disk Management and Supervision, drivers can register
themselves to DMS so that they can be looked up and operated on.
Signed-off-by: Ian Moffett <ian@osmora.org>
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Move to the buffer given to us if there it is a read, move from the
buffer given to us if it is a write
Signed-off-by: Ian Moffett <ian@osmora.org>
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Introduces reading and writing of SATA drives via a bufargs structure to
describe the buffer as well as its attributes
Signed-off-by: Ian Moffett <ian@osmora.org>
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Fixes a crash with using this syscall
Signed-off-by: Ian Moffett <ian@osmora.org>
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Implements command slot allocation, command submission and the ATA
identify command
Signed-off-by: Ian Moffett <ian@osmora.org>
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No need to overcomplicate things for now, just use a simple vm_alloc_frame() for
DMA allocations
Signed-off-by: Ian Moffett <ian@osmora.org>
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