simulator: Rework dummy simulator code to user timer_irq / serial_irq

Change the simulator to use the generic timer_irq.c and serial_irq.c
code for (dummy) timer and io handling.  This is just to make the code
a better example for other developers (most micro-controllers will use
the timer_irq.c and serial_irq.c code).

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

1 files changed, 1 insertions, 108 deletions

diff --git a/src/simulator/main.c b/src/simulator/main.c
index e0384611..6817bbc5 100644
--- a/src/simulator/main.c
+++ b/src/simulator/main.c
@@ -1,122 +1,15 @@
 // Main starting point for host simulator.
 //
-// Copyright (C) 2016  Kevin O'Connor <kevin@koconnor.net>
+// Copyright (C) 2016-2018  Kevin O'Connor <kevin@koconnor.net>
 //
 // This file may be distributed under the terms of the GNU GPLv3 license.
 
-#include <fcntl.h>
-#include <stdio.h>
-#include <unistd.h>
-#include "board/misc.h" // timer_from_us
-#include "board/irq.h" // irq_disable
 #include "sched.h" // sched_main
 
-
-/****************************************************************
- * Interrupts
- ****************************************************************/
-
-irqstatus_t Interrupt_off;
-
-void
-irq_disable(void)
-{
-    Interrupt_off = 1;
-    barrier();
-}
-
-void
-irq_enable(void)
-{
-    barrier();
-    Interrupt_off = 0;
-}
-
-irqstatus_t
-irq_save(void)
-{
-    irqstatus_t flag = Interrupt_off;
-    irq_disable();
-    return flag;
-}
-
-void
-irq_restore(irqstatus_t flag)
-{
-    barrier();
-    Interrupt_off = flag;
-}
-
-void
-irq_wait(void)
-{
-}
-
-void
-irq_poll(void)
-{
-}
-
-
-/****************************************************************
- * Timers
- ****************************************************************/
-
-uint32_t
-timer_from_us(uint32_t us)
-{
-    return 0; // XXX
-}
-
-uint8_t
-timer_is_before(uint32_t time1, uint32_t time2)
-{
-    return (int32_t)(time1 - time2) < 0;
-}
-
-uint32_t
-timer_read_time(void)
-{
-    return 0; // XXX
-}
-
-void
-timer_kick(void)
-{
-}
-
-
-/****************************************************************
- * Turn stdin/stdout into serial console
- ****************************************************************/
-
-// Encode and transmit a "response" message
-void
-console_sendf(const struct command_encoder *ce, va_list args)
-{
-}
-
-
-/****************************************************************
- * Startup
- ****************************************************************/
-
-// Periodically sleep so we don't consume all CPU
-void
-simu_pause(void)
-{
-    // XXX - should check that no timers are present.
-    usleep(1);
-}
-DECL_TASK(simu_pause);
-
 // Main entry point for simulator.
 int
 main(void)
 {
-    // Make stdin non-blocking
-    fcntl(STDIN_FILENO, F_SETFL, fcntl(STDIN_FILENO, F_GETFL, 0) | O_NONBLOCK);
-
     sched_main();
     return 0;
 }