diff options
Diffstat (limited to 'bsps/mips/jmr3904/irq/vectorisrs.c')
-rw-r--r-- | bsps/mips/jmr3904/irq/vectorisrs.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/bsps/mips/jmr3904/irq/vectorisrs.c b/bsps/mips/jmr3904/irq/vectorisrs.c new file mode 100644 index 0000000000..629c4c45f8 --- /dev/null +++ b/bsps/mips/jmr3904/irq/vectorisrs.c @@ -0,0 +1,47 @@ +/** + * @file + * + * TX3904 Interrupt Vectoring + */ + +/* + * COPYRIGHT (c) 1989-2012. + * On-Line Applications Research Corporation (OAR). + * + * 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.h> +#include <stdlib.h> +#include <bsp/irq.h> +#include <rtems/bspIo.h> /* for printk */ +#include <bsp/irq-generic.h> +#include <libcpu/isr_entries.h> + +void mips_vector_isr_handlers( CPU_Interrupt_frame *frame ) +{ + unsigned int sr; + unsigned int cause; + + mips_get_sr( sr ); + mips_get_cause( cause ); + + cause &= (sr & SR_IMASK); + cause >>= CAUSE_IPSHIFT; + + if ( cause & 0x80 ) /* IP[5] ==> INT0 */ + bsp_interrupt_handler_dispatch( TX3904_IRQ_INT0 ); + + if ( cause & 0x40 ) { /* (IP[4] == 1) ==> IP[0-3] are valid */ + unsigned int v = (cause >> 2) & 0x0f; + bsp_interrupt_handler_dispatch( MIPS_INTERRUPT_BASE + v ); + } + + if ( cause & 0x02 ) /* SW[0] */ + bsp_interrupt_handler_dispatch( TX3904_IRQ_SOFTWARE_1 ); + + if ( cause & 0x01 ) /* IP[1] */ + bsp_interrupt_handler_dispatch( TX3904_IRQ_SOFTWARE_2 ); +} |