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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2017-12-08 07:32:10 +0100 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2017-12-08 09:30:34 +0100 |
commit | e9d61145e17c1eaee36a82593754133d51072e0c (patch) | |
tree | 58705eb291637e6125d7dd384fc62ae68705c98b /c/src/lib/libbsp/arm/gumstix/irq | |
parent | bsps: Do not install <libcpu/cache.h> (diff) | |
download | rtems-e9d61145e17c1eaee36a82593754133d51072e0c.tar.bz2 |
bsp/gumstix: Move libcpu files to BSP
Update #3254.
Diffstat (limited to 'c/src/lib/libbsp/arm/gumstix/irq')
-rw-r--r-- | c/src/lib/libbsp/arm/gumstix/irq/irq.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/arm/gumstix/irq/irq.c b/c/src/lib/libbsp/arm/gumstix/irq/irq.c new file mode 100644 index 0000000000..425795b165 --- /dev/null +++ b/c/src/lib/libbsp/arm/gumstix/irq/irq.c @@ -0,0 +1,51 @@ +/* + * Copyright (c) 2010 embedded brains GmbH. + * + * PXA255 Interrupt handler by Yang Xi <hiyangxi@gmail.com> + * Copyright (c) 2004 by Jay Monkman <jtm@lopingdog.com> + * + * 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 <pxa255.h> + +void bsp_interrupt_dispatch(void) +{ + rtems_vector_number vector = 31 - __builtin_clz(XSCALE_INT_ICIP); + + bsp_interrupt_handler_dispatch(vector); +} + +void bsp_interrupt_vector_enable(rtems_vector_number vector) +{ + bsp_interrupt_assert(bsp_interrupt_is_valid_vector(vector)); + XSCALE_INT_ICMR |= 1 << vector; +} + +void bsp_interrupt_vector_disable(rtems_vector_number vector) +{ + bsp_interrupt_assert(bsp_interrupt_is_valid_vector(vector)); + XSCALE_INT_ICMR &= ~(1 << vector); +} + +rtems_status_code bsp_interrupt_facility_initialize(void) +{ + /* disable all interrupts */ + XSCALE_INT_ICMR = 0x0; + + /* Direct the interrupt to IRQ*/ + XSCALE_INT_ICLR = 0x0; + + /* Install the IRQ exception handler */ + _CPU_ISR_install_vector(ARM_EXCEPTION_IRQ, _ARMV4_Exception_interrupt, NULL); + + return RTEMS_SUCCESSFUL; +} |