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sched: Allow shutdown_reason to be uint8

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Store the shutdown_reason code in an 8-bit integer - this produces
better code on AVR.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2017-05-26 08:34:31 -04:00
parent b9940f0e0d
commit ca9756413f
4 changed files with 17 additions and 16 deletions
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21
src/sched.c
View file

@ -8,6 +8,7 @@
#include "autoconf.h" // CONFIG_*
#include "board/irq.h" // irq_save
#include "board/misc.h" // timer_from_us
#include "board/pgm.h" // READP
#include "command.h" // shutdown
#include "sched.h" // sched_check_periodic
#include "stepper.h" // stepper_event
@ -181,8 +182,7 @@ DECL_SHUTDOWN(sched_timer_shutdown);
* Shutdown processing
****************************************************************/
static uint16_t shutdown_reason;
static uint8_t shutdown_status;
static uint_fast8_t shutdown_status, shutdown_reason;
// Return true if the machine is in an emergency stop state
uint8_t
@ -191,12 +191,6 @@ sched_is_shutdown(void)
return !!shutdown_status;
}
uint16_t
sched_shutdown_reason(void)
{
return shutdown_reason;
}
// Transition out of shutdown state
void
sched_clear_shutdown(void)
@ -226,9 +220,16 @@ run_shutdown(void)
sendf("shutdown clock=%u static_string_id=%hu", cur, shutdown_reason);
}
// Report the last shutdown reason code
void
sched_report_shutdown(void)
{
sendf("is_shutdown static_string_id=%hu", shutdown_reason);
}
// Shutdown the machine if not already in the process of shutting down
void
sched_try_shutdown(unsigned int reason)
sched_try_shutdown(uint_fast8_t reason)
{
if (shutdown_status != 2)
sched_shutdown(reason);
@ -238,7 +239,7 @@ static jmp_buf shutdown_jmp;
// Force the machine to immediately run the shutdown handlers
void
sched_shutdown(unsigned int reason)
sched_shutdown(uint_fast8_t reason)
{
irq_disable();
if (!shutdown_status)