Justin C. Miller
5787aff866
Create a new framebuffer driver. Also hackily passing frame buffer size in the list of init handles to all processes and mapping the framebuffer into all processes. Changed bootloader passing frame buffer as a module to its own struct.
42 lines
693 B
C++
42 lines
693 B
C++
#include <stdint.h>
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#include <stdlib.h>
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#include "j6/types.h"
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#include "j6/errors.h"
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#include "j6/signals.h"
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#include <j6libc/syscalls.h>
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extern "C" {
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void _init_libc(j6_process_init *);
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int main(int, const char **);
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}
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j6_handle_t sys = j6_handle_invalid;
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size_t size = 0;
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void
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_init_libc(j6_process_init *init)
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{
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sys = init->handles[0];
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size = reinterpret_cast<size_t>(init->handles[1]);
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}
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int
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main(int argc, const char **argv)
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{
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_syscall_system_log("fb driver starting");
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if (size == 0)
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return 1;
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uint32_t *fb = reinterpret_cast<uint32_t*>(0x100000000);
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for (size_t i=0; i < size/4; ++i) {
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fb[i] = 0xff;
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}
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_syscall_system_log("fb driver done, exiting");
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return 0;
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}
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