andreika-git
/
ChibiOS
mirror of https://github.com/andreika-git/ChibiOS.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@604 35acf78f-673a-0410-8e92-d51de3d6d3f4

This commit is contained in:
gdisirio 2009-01-10 12:33:06 +00:00
parent 0fc2adba2a
commit 49adf9423c
1 changed files with 58 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

64
ports/ARM7/chcore.h
View File

@ -135,7 +135,7 @@ typedef struct {
* IRQ prologue code, inserted at the start of all IRQ handlers enabled to * IRQ prologue code, inserted at the start of all IRQ handlers enabled to
* invoke system APIs. * invoke system APIs.
* @note This macro has a different implementation depending if compiled in * @note This macro has a different implementation depending if compiled in
* ARM or TUMB mode. * ARM or THUMB mode.
*/ */
#ifdef THUMB #ifdef THUMB
#define SYS_IRQ_PROLOGUE() { \ #define SYS_IRQ_PROLOGUE() { \
@ -155,7 +155,7 @@ typedef struct {
* IRQ epilogue code, inserted at the end of all IRQ handlers enabled to * IRQ epilogue code, inserted at the end of all IRQ handlers enabled to
* invoke system APIs. * invoke system APIs.
* @note This macro has a different implementation depending if compiled in * @note This macro has a different implementation depending if compiled in
* ARM or TUMB mode. * ARM or THUMB mode.
*/ */
#ifdef THUMB #ifdef THUMB
#define SYS_IRQ_EPILOGUE() { \ #define SYS_IRQ_EPILOGUE() { \
@ -173,17 +173,67 @@ typedef struct {
*/ */
#define SYS_IRQ_HANDLER __attribute__((naked)) #define SYS_IRQ_HANDLER __attribute__((naked))
/**
* Performs a context switch between two threads.
* @param otp the thread to be switched out
* @param ntp the thread to be switched in
* @note This macro has a different implementation depending if compiled in
* ARM or THUMB mode.
* @note This macro assumes to be invoked in ARM system mode.
*/
#ifdef THUMB
#define sys_switch(otp, ntp) _sys_switch_thumb(otp, ntp)
#else /* THUMB */
#define sys_switch(otp, ntp) _sys_switch_arm(otp, ntp)
#endif /* !THUMB */
/**
* In this port this macro disables the IRQ sources.
* @note This macro has a different implementation depending if compiled in
* ARM or THUMB mode.
* @note This macro assumes to be invoked in ARM system mode.
*/
#ifdef THUMB
#define sys_disable() asm volatile ("msr CPSR_c, #0x9F")
#else /* THUMB */
#define sys_disable() _sys_disable_thumb()
#endif /* !THUMB */
/**
* This port function is implemented as inlined code for performance reasons.
* @note This macro has a different implementation depending if compiled in
* ARM or THUMB mode.
* @note This macro assumes to be invoked in ARM system mode.
*/
#ifdef THUMB
#define sys_enable() asm volatile ("msr CPSR_c, #0x1F")
#else /* THUMB */
#define sys_enable() _sys_enable_thumb()
#endif /* !THUMB */
/**
* This function is empty in this port.
*/
#define sys_disable_from_isr()
/**
* This function is empty in this port.
*/
#define sys_enable_from_isr()
#ifdef __cplusplus #ifdef __cplusplus
extern "C" { extern "C" {
#endif #endif
void sys_puts(char *msg); void sys_puts(char *msg);
void sys_switch(Thread *otp, Thread *ntp);
void sys_enable(void);
void sys_disable(void);
void sys_disable_from_isr(void);
void sys_enable_from_isr(void);
void sys_wait_for_interrupt(void); void sys_wait_for_interrupt(void);
void sys_halt(void); void sys_halt(void);
void _sys_enable_thumb(void);
void _sys_disable_thumb(void);
#ifdef THUMB
void _sys_switch_thumb(Thread *otp, Thread *ntp);
#else /* THUMB */
void _sys_switch_arm(Thread *otp, Thread *ntp);
#endif /* !THUMB */
#ifdef __cplusplus #ifdef __cplusplus
} }
#endif #endif