justin/jsix_import
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[fb] Create fb driver

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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.
This commit is contained in:
Justin C. Miller
2020-12-27 18:49:38 -08:00
committed by Justin C. Miller
parent e70eb5a926
commit 19cbf1ca67
15 changed files with 170 additions and 71 deletions
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15
src/kernel/main.cpp
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@@ -17,6 +17,7 @@
#include "log.h"
#include "objects/channel.h"
#include "objects/event.h"
#include "objects/thread.h"
#include "scheduler.h"
#include "serial.h"
#include "symbol_table.h"
@@ -44,6 +45,10 @@ run_constructors()
extern void __kernel_assert(const char *, unsigned, const char *);
/// TODO: not this. this is awful.
uintptr_t fb_loc = 0;
size_t fb_size = 0;
/// Bootstrap the memory managers.
void memory_initialize_pre_ctors(kernel::args::header *kargs);
void memory_initialize_post_ctors(kernel::args::header *kargs);
@@ -131,6 +136,11 @@ kernel_main(args::header *header)
}
}
if (header->video.size > 0) {
fb_size = header->video.size;
fb_loc = header->video.phys_addr;
}
log::debug(logs::boot, " jsix header is at: %016lx", header);
log::debug(logs::boot, " Memory map is at: %016lx", header->mem_map);
log::debug(logs::boot, "ACPI root table is at: %016lx", header->acpi_table);
@@ -176,7 +186,10 @@ kernel_main(args::header *header)
// Skip program 0, which is the kernel itself
for (size_t i = 1; i < header->num_programs; ++i) {
args::program &prog = header->programs[i];
sched->load_process(prog.phys_addr, prog.virt_addr, prog.size, prog.entrypoint);
thread *th = sched->load_process(prog.phys_addr, prog.virt_addr, prog.size, prog.entrypoint);
if (i == 2) {
th->set_state(thread::state::constant);
}
}
sched->create_kernel_task(logger_task, scheduler::max_priority-1, true);