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/*
* Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Hyra nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <sys/syslog.h>
#include <sys/machdep.h>
#include <sys/timer.h>
#include <sys/sched.h>
#include <sys/tty.h>
#include <sys/vfs.h>
#include <sys/driver.h>
#include <machine/cpu_mp.h>
#include <firmware/acpi/acpi.h>
#include <vm/physseg.h>
#include <logo.h>
__MODULE_NAME("init_main");
__KERNEL_META("$Hyra$: init_main.c, Ian Marco Moffett, "
"Where the Hyra kernel first starts up");
static inline void
log_timer(const char *purpose, tmrr_status_t s, const struct timer *tmr)
{
if (s == TMRR_EMPTY_ENTRY) {
kprintf("init_main: %s not yet registered\n", purpose);
} else if (tmr->name == NULL) {
kprintf("init_main: Nameless %s registered; unknown\n", purpose);
} else {
kprintf("init_main: %s registered: %s\n", purpose, tmr->name);
}
}
/*
* Logs what timers are registered
* on the system.
*/
static void
list_timers(void)
{
struct timer timer_tmp;
tmrr_status_t status;
status = req_timer(TIMER_SCHED, &timer_tmp);
log_timer("SCHED_TMR", status, &timer_tmp);
status = req_timer(TIMER_GP, &timer_tmp);
log_timer("GENERAL_PURPOSE_TMR", status, &timer_tmp);
}
void
main(void)
{
struct cpu_info *ci;
int status;
__TRY_CALL(pre_init);
syslog_init();
PRINT_LOGO();
kprintf("Hyra/%s v%s: %s (%s)\n",
HYRA_ARCH, HYRA_VERSION, HYRA_BUILDDATE,
HYRA_BUILDBRANCH);
acpi_init();
__TRY_CALL(chips_init);
processor_init();
list_timers();
vfs_init();
/* Attach the root TTY */
if ((status = tty_attach(&g_root_tty)) < 0)
kprintf("Failed to attach root TTY (got %d)\n", status);
DRIVERS_INIT();
sched_init();
ci = this_cpu();
/* Stop writing kernel messages to TTY */
g_syslog_use_tty = false;
__TRY_CALL(ap_bootstrap, ci);
sched_enter();
while (1);
__builtin_unreachable();
}
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