diff options
Diffstat (limited to 'c/src/lib/libcpu/powerpc/ppc403/ictrl/ictrl.h')
| -rw-r--r-- | c/src/lib/libcpu/powerpc/ppc403/ictrl/ictrl.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/c/src/lib/libcpu/powerpc/ppc403/ictrl/ictrl.h b/c/src/lib/libcpu/powerpc/ppc403/ictrl/ictrl.h new file mode 100644 index 0000000000..5891d8aa2e --- /dev/null +++ b/c/src/lib/libcpu/powerpc/ppc403/ictrl/ictrl.h @@ -0,0 +1,84 @@ +/* ictrl.h + * + * This file contains definitions and declarations for the + * PowerPC 403 CPU built-in external interrupt controller + * + * + * Author: Thomas Doerfler <td@imd.m.isar.de> + * + * COPYRIGHT (c) 1998 by IMD, Puchheim, Germany + * + * To anyone who acknowledges that this file is provided "AS IS" + * without any express or implied warranty: + * permission to use, copy, modify, and distribute this file + * for any purpose is hereby granted without fee, provided that + * the above copyright notice and this notice appears in all + * copies, and that the name of IMD not be used in + * advertising or publicity pertaining to distribution of the + * software without specific, written prior permission. + * IMD makes no representations about the suitability + * of this software for any purpose. + * + */ + + +#ifndef _INCLUDE_ICTRL_h +#define _INCLUDE_ICTRL_h + +#include <rtems.h> +#include <rtems/system.h> +#include <rtems/score/isr.h> +#ifdef __cplusplus +extern "C" { +#endif + +/* + * definitions for second level IRQ handler support + * External Interrupts via EXTERNAL/EISR + */ +#define PPC_IRQ_EXT_BASE (PPC_IRQ_LAST+1) + +/* mask for external interrupt status in EXIER/EXISR register */ +/* note: critical interrupt is in these registers aswell */ +#define PPC_EXI_MASK 0x0FFFFFFF + +#define PPC_IRQ_EXT_SPIR (PPC_IRQ_EXT_BASE+4) +#define PPC_IRQ_EXT_SPIT (PPC_IRQ_EXT_BASE+5) +#define PPC_IRQ_EXT_JTAGR (PPC_IRQ_EXT_BASE+6) +#define PPC_IRQ_EXT_JTAGT (PPC_IRQ_EXT_BASE+7) +#define PPC_IRQ_EXT_DMA0 (PPC_IRQ_EXT_BASE+8) +#define PPC_IRQ_EXT_DMA1 (PPC_IRQ_EXT_BASE+9) +#define PPC_IRQ_EXT_DMA2 (PPC_IRQ_EXT_BASE+10) +#define PPC_IRQ_EXT_DMA3 (PPC_IRQ_EXT_BASE+11) +#define PPC_IRQ_EXT_0 (PPC_IRQ_EXT_BASE+27) +#define PPC_IRQ_EXT_1 (PPC_IRQ_EXT_BASE+28) +#define PPC_IRQ_EXT_2 (PPC_IRQ_EXT_BASE+29) +#define PPC_IRQ_EXT_3 (PPC_IRQ_EXT_BASE+30) +#define PPC_IRQ_EXT_4 (PPC_IRQ_EXT_BASE+31) + +#define PPC_IRQ_EXT_MAX (32) + +#define VEC_TO_EXMSK(v) (0x80000000 >> (v)) + +/* + * + * install a user vector for one of the external interrupt sources + * + */ +rtems_status_code +ictrl_set_vector(rtems_isr_entry new_handler, + unsigned32 vector, + rtems_isr_entry *old_handler +); +/* + * activate the interrupt controller + */ +rtems_status_code +ictrl_init(void); + +#ifdef __cplusplus +} +#endif + +#endif /* ! _INCLUDE_ICTRL_h */ +/* end of include file */ |