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kernel: convert alert APIs to system calls

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Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This commit is contained in:
Andrew Boie 2017-09-29 04:41:15 -07:00 • committed by Andrew Boie
commit 310e987dd5
2 changed files with 29 additions and 4 deletions
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4
include/kernel.h
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@ -2747,7 +2747,7 @@ extern void k_alert_init(struct k_alert *alert, k_alert_handler_t handler,
* @retval -EBUSY Returned without waiting.
* @retval -EAGAIN Waiting period timed out.
*/
extern int k_alert_recv(struct k_alert *alert, s32_t timeout);
__syscall int k_alert_recv(struct k_alert *alert, s32_t timeout);
/**
* @brief Signal an alert.
@ -2763,7 +2763,7 @@ extern int k_alert_recv(struct k_alert *alert, s32_t timeout);
*
* @return N/A
*/
extern void k_alert_send(struct k_alert *alert);
__syscall void k_alert_send(struct k_alert *alert);
/**
* @} end addtogroup alert_apis

29
kernel/alert.c
View file

@ -16,6 +16,7 @@
#include <init.h>
#include <toolchain.h>
#include <linker/sections.h>
#include <syscall_handler.h>
extern struct k_alert _k_alert_list_start[];
extern struct k_alert _k_alert_list_end[];
@ -73,7 +74,7 @@ void k_alert_init(struct k_alert *alert, k_alert_handler_t handler,
_k_object_init(alert);
}
void k_alert_send(struct k_alert *alert)
void _impl_k_alert_send(struct k_alert *alert)
{
if (alert->handler == K_ALERT_IGNORE) {
/* ignore the alert */
@ -90,7 +91,31 @@ void k_alert_send(struct k_alert *alert)
}
}
int k_alert_recv(struct k_alert *alert, s32_t timeout)
#ifdef CONFIG_USERSPACE
u32_t _handler_k_alert_send(u32_t alert, u32_t arg2, u32_t arg3,
u32_t arg4, u32_t arg5, u32_t arg6, void *ssf)
{
_SYSCALL_ARG1;
_SYSCALL_IS_OBJ(alert, K_OBJ_ALERT, 0, ssf);
_impl_k_alert_send((struct k_alert *)alert);
return 0;
}
#endif
int _impl_k_alert_recv(struct k_alert *alert, s32_t timeout)
{
return k_sem_take(&alert->sem, timeout);
}
#ifdef CONFIG_USERSPACE
u32_t _handler_k_alert_recv(u32_t alert, u32_t timeout, u32_t arg3,
u32_t arg4, u32_t arg5, u32_t arg6, void *ssf)
{
_SYSCALL_ARG2;
_SYSCALL_IS_OBJ(alert, K_OBJ_ALERT, 0, ssf);
return _impl_k_alert_recv((struct k_alert *)alert, timeout);
}
#endif