Files
Main/scheduler.cpp
2019-12-01 21:39:28 +08:00

97 lines
1.4 KiB
C++

#include "scheduler.h"
#include <stdio.h>
#include "libco.h"
#include "menu.h"
#include "user_io.h"
#include "input.h"
#include "fpga_io.h"
#include "osd.h"
static cothread_t co_scheduler = nullptr;
static cothread_t co_poll = nullptr;
static cothread_t co_ui = nullptr;
static cothread_t co_last = nullptr;
static void scheduler_wait_fpga_ready(void)
{
while (!is_fpga_ready(1))
{
printf("FPGA is not ready. JTAG uploading?\n");
printf("Waiting for FPGA to be ready...\n");
//enable reset in advance
fpga_core_reset(1);
while (!is_fpga_ready(0))
{
sleep(1);
}
reboot(0);
}
}
static void scheduler_co_poll(void)
{
for (;;)
{
scheduler_wait_fpga_ready();
user_io_poll();
input_poll(0);
scheduler_yield();
}
}
static void scheduler_co_ui(void)
{
for (;;)
{
HandleUI();
OsdUpdate();
scheduler_yield();
}
}
static void scheduler_schedule(void)
{
if (co_last == co_poll)
{
co_last = co_ui;
co_switch(co_ui);
}
else
{
co_last = co_poll;
co_switch(co_poll);
}
}
void scheduler_init(void)
{
const unsigned int co_stack_size = 262144 * sizeof(void*);
co_poll = co_create(co_stack_size, scheduler_co_poll);
co_ui = co_create(co_stack_size, scheduler_co_ui);
}
void scheduler_run(void)
{
co_scheduler = co_active();
for (;;)
{
scheduler_schedule();
}
co_delete(co_ui);
co_delete(co_poll);
co_delete(co_scheduler);
}
void scheduler_yield(void)
{
co_switch(co_scheduler);
}