diff options
Diffstat (limited to 'bsps/arm/lpc24xx/irq/irq-dispatch.c')
-rw-r--r-- | bsps/arm/lpc24xx/irq/irq-dispatch.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/bsps/arm/lpc24xx/irq/irq-dispatch.c b/bsps/arm/lpc24xx/irq/irq-dispatch.c new file mode 100644 index 0000000000..66d05fdf9d --- /dev/null +++ b/bsps/arm/lpc24xx/irq/irq-dispatch.c @@ -0,0 +1,50 @@ +/** + * @file + * + * @ingroup bsp_interrupt + * + * @brief LPC24XX interrupt support. + */ + +/* + * Copyright (c) 2008-2012 embedded brains GmbH. All rights reserved. + * + * embedded brains GmbH + * Obere Lagerstr. 30 + * 82178 Puchheim + * Germany + * <rtems@embedded-brains.de> + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + +#include <rtems/score/armv4.h> + +#include <bsp.h> +#include <bsp/irq.h> +#include <bsp/irq-generic.h> +#include <bsp/lpc24xx.h> + +#ifdef ARM_MULTILIB_ARCH_V4 + +void bsp_interrupt_dispatch(void) +{ + /* Read current vector number */ + rtems_vector_number vector = VICVectAddr; + + /* Enable interrupts in program status register */ + uint32_t psr = _ARMV4_Status_irq_enable(); + + /* Dispatch interrupt handlers */ + bsp_interrupt_handler_dispatch(vector); + + /* Restore program status register */ + _ARMV4_Status_restore(psr); + + /* Acknowledge interrupt */ + VICVectAddr = 0; +} + +#endif /* ARM_MULTILIB_ARCH_V4 */ |