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| author | Bert Lange <b.lange@hzdr.de> | 2015-04-15 13:36:55 +0200 |
|---|---|---|
| committer | Bert Lange <b.lange@hzdr.de> | 2015-04-15 13:36:55 +0200 |
| commit | a1c964908b51599bf624bd2d253419c7e629f195 (patch) | |
| tree | 06125d59e83b7dde82d1bb57bc0e09ca83451b98 /zpu/sw/ecos/repository/hal/zylin/arch/current/src/vectors.c | |
| parent | bbfe29a15f11548eb7c9fa71dcb4d2d18c164a53 (diff) | |
| parent | 8679e4f91dcae05aef40f96629f33f0f4161f14a (diff) | |
| download | zpu-a1c964908b51599bf624bd2d253419c7e629f195.zip zpu-a1c964908b51599bf624bd2d253419c7e629f195.tar.gz | |
Merge branch 'master' of https://github.com/zylin/zpu
Diffstat (limited to 'zpu/sw/ecos/repository/hal/zylin/arch/current/src/vectors.c')
| -rw-r--r-- | zpu/sw/ecos/repository/hal/zylin/arch/current/src/vectors.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/zpu/sw/ecos/repository/hal/zylin/arch/current/src/vectors.c b/zpu/sw/ecos/repository/hal/zylin/arch/current/src/vectors.c new file mode 100644 index 0000000..b254a85 --- /dev/null +++ b/zpu/sw/ecos/repository/hal/zylin/arch/current/src/vectors.c @@ -0,0 +1,116 @@ +#include <pkgconf/hal.h>
+#include <pkgconf/hal_zylin.h>
+#ifdef CYGPKG_KERNEL
+#include <pkgconf/kernel.h>
+#endif
+#ifdef CYGPKG_CYGMON
+#include <pkgconf/cygmon.h>
+#endif
+
+#include <cyg/infra/cyg_type.h>
+#include <cyg/infra/cyg_trac.h> // tracing macros
+#include <cyg/infra/cyg_ass.h> // assertion macros
+
+#include <cyg/hal/hal_arch.h> // HAL header
+#include <cyg/hal/hal_intr.h> // HAL header
+#include <string.h>
+#include <cyg/hal/hal_arch.h> // Register state info
+
+extern char __bss_start[];
+extern char __bss_end[];
+
+externC void cyg_hal_invoke_constructors (void);
+externC void cyg_start (void);
+externC void hal_hardware_init (void);
+externC void _initIO();
+
+void _premain(void)
+{
+ // clear BSS
+ memset(__bss_start, 0, __bss_end-__bss_start);
+
+ _initIO();
+
+ hal_hardware_init();
+
+ cyg_hal_invoke_constructors();
+
+ cyg_start();
+
+ __asm("breakpoint"); // stop debugger/sim here for now
+// for (;;); // hang forever
+}
+
+CYG_ADDRWORD hal_vsr_table[CYGNUM_HAL_VSR_COUNT];
+CYG_ADDRWORD hal_interrupt_handlers[CYGNUM_HAL_ISR_COUNT];
+CYG_ADDRWORD hal_interrupt_data[CYGNUM_HAL_ISR_COUNT];
+CYG_ADDRWORD hal_interrupt_objects[CYGNUM_HAL_ISR_COUNT];
+
+externC cyg_ucount32 cyg_scheduler_sched_lock;
+externC cyg_uint32 hal_IRQ_handler();
+
+externC void interrupt_end(
+ cyg_uint32 isr_ret,
+ CYG_ADDRWORD intr,
+ HAL_SavedRegisters *ctx
+ );
+
+
+#ifndef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
+
+
+void _zpu_interrupt(void)
+{
+ cyg_uint32 source;
+#ifdef CYGFUN_HAL_COMMON_KERNEL_SUPPORT
+ cyg_scheduler_sched_lock++;
+#endif
+ /* we don't support reentrant interrupts, so we disable interrupts here. */
+ cyg_uint32 t;
+ HAL_DISABLE_INTERRUPTS(t);
+
+ source=hal_IRQ_handler();
+ if (source!=CYGNUM_HAL_INTERRUPT_NONE)
+ {
+
+ cyg_uint32 result;
+
+ result=((cyg_uint32 (*)(cyg_uint32, CYG_ADDRWORD))hal_interrupt_handlers[source])(source, hal_interrupt_data[source]);
+ /* restore interrupts again. */
+ HAL_ENABLE_INTERRUPTS();
+ /* Interrupts must be enabled here as the scheduler is invoked here. */
+ interrupt_end(result, hal_interrupt_objects[source], NULL);
+ } else
+ {
+ /* restore interrupts again. */
+ HAL_ENABLE_INTERRUPTS();
+ }
+}
+#else
+/* low-level interrupt handling routine */
+cyg_uint32 _zpu_interrupt_stack(cyg_uint32 source)
+{
+#ifdef CYGFUN_HAL_COMMON_KERNEL_SUPPORT
+ cyg_scheduler_sched_lock++;
+#endif
+ /* we don't support reentrant interrupts, so we disable interrupts here. */
+ cyg_uint32 t;
+ HAL_DISABLE_INTERRUPTS(t);
+
+ cyg_uint32 result=0;
+ if (source!=CYGNUM_HAL_INTERRUPT_NONE)
+ {
+ cyg_uint32 result;
+ result=((cyg_uint32 (*)(cyg_uint32, CYG_ADDRWORD))hal_interrupt_handlers[source])(source, hal_interrupt_data[source]);
+ }
+ return result;
+}
+void _zpu_interrupt_thread(cyg_uint32 source, cyg_uint32 result)
+{
+ if (source!=CYGNUM_HAL_INTERRUPT_NONE)
+ {
+ /* Interrupts must be enabled here as the scheduler is invoked here. */
+ interrupt_end(result, hal_interrupt_objects[source], NULL);
+ }
+}
+#endif
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