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https://github.com/justinian/jsix.git
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8f529046a9
I'm a tabs guy. I like tabs, it's an elegant way to represent indentation instead of brute-forcing it. But I have to admit that the world seems to be going towards spaces, and tooling tends not to play nice with tabs. So here we go, changing the whole repo to spaces since I'm getting tired of all the inconsistent formatting.
81 lines
2.1 KiB
C++
81 lines
2.1 KiB
C++
#include "j6/errors.h"
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#include "j6/types.h"
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#include "device_manager.h"
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#include "frame_allocator.h"
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#include "log.h"
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#include "objects/endpoint.h"
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#include "objects/thread.h"
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#include "objects/system.h"
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#include "objects/vm_area.h"
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#include "syscalls/helpers.h"
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extern log::logger &g_logger;
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namespace syscalls {
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j6_status_t
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system_log(const char *message)
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{
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if (message == nullptr)
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return j6_err_invalid_arg;
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thread &th = thread::current();
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log::info(logs::syscall, "Message[%llx]: %s", th.koid(), message);
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return j6_status_ok;
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}
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j6_status_t
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system_noop()
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{
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thread &th = thread::current();
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log::debug(logs::syscall, "Thread %llx called noop syscall.", th.koid());
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return j6_status_ok;
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}
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j6_status_t
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system_get_log(j6_handle_t sys, void *buffer, size_t *size)
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{
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if (!size || (*size && !buffer))
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return j6_err_invalid_arg;
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size_t orig_size = *size;
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*size = g_logger.get_entry(buffer, *size);
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if (!g_logger.has_log())
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system::get().deassert_signal(j6_signal_system_has_log);
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return (*size > orig_size) ? j6_err_insufficient : j6_status_ok;
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}
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j6_status_t
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system_bind_irq(j6_handle_t sys, j6_handle_t endp, unsigned irq)
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{
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// TODO: check capabilities on sys handle
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endpoint *e = get_handle<endpoint>(endp);
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if (!e) return j6_err_invalid_arg;
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if (device_manager::get().bind_irq(irq, e))
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return j6_status_ok;
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return j6_err_invalid_arg;
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}
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j6_status_t
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system_map_phys(j6_handle_t sys, j6_handle_t *vma_handle, uintptr_t phys_addr, size_t size, uint32_t flags)
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{
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// TODO: check capabilities on sys handle
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if (!vma_handle) return j6_err_invalid_arg;
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// TODO: check to see if frames are already used? How would that collide with
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// the bootloader's allocated pages already being marked used?
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if (!(flags & vm_flags::mmio))
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frame_allocator::get().used(phys_addr, memory::page_count(size));
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vm_flags vmf = (static_cast<vm_flags>(flags) & vm_flags::driver_mask);
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construct_handle<vm_area_fixed>(vma_handle, phys_addr, size, vmf);
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return j6_status_ok;
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}
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} // namespace syscalls
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