include/bsp/irq.h

0001 /* irq.h
0002  *
0003  *  This include file describe the data structure and the functions implemented
0004  *  by rtems to write interrupt handlers.
0005  *
0006  *  CopyRight (C) 1999 valette@crf.canon.fr
0007  *
0008  *  This code is heavilly inspired by the public specification of STREAM V2
0009  *  that can be found at :
0010  *
0011  *      <http://www.chorus.com/Documentation/index.html> by following
0012  *  the STREAM API Specification Document link.
0013  *
0014  *  The license and distribution terms for this file may be
0015  *  found in the file LICENSE in this distribution or at
0016  *  http://www.rtems.org/license/LICENSE.
0017  */
0018
0019 #ifndef LIBBSP_POWERPC_IRQ_H
0020 #define LIBBSP_POWERPC_IRQ_H
0021
0022 #define BSP_SHARED_HANDLER_SUPPORT      1
0023
0024 #ifndef ASM
0025
0026 #include <rtems/irq.h>
0027
0028
0029 /*
0030  * Symblolic IRQ names and related definitions.
0031  */
0032
0033 /*
0034  * PCI IRQ handlers related definitions
0035  * CAUTION : BSP_PCI_IRQ_LOWEST_OFFSET should be equal to OPENPIC_VEC_SOURCE
0036  */
0037 /* FIXME: do we need PCI interrrupts here ? */
0038 #define BSP_PCI_IRQ_NUMBER      (16)
0039 #define BSP_PCI_IRQ_LOWEST_OFFSET   (0)
0040 #define BSP_PCI_IRQ_MAX_OFFSET      (BSP_PCI_IRQ_LOWEST_OFFSET + BSP_PCI_IRQ_NUMBER - 1)
0041
0042 #define BSP_PROCESSOR_IRQ_NUMBER        (1)
0043 #define BSP_PROCESSOR_IRQ_LOWEST_OFFSET (BSP_PCI_IRQ_MAX_OFFSET)
0044 #define BSP_PROCESSOR_IRQ_MAX_OFFSET    (BSP_PROCESSOR_IRQ_LOWEST_OFFSET+BSP_PROCESSOR_IRQ_NUMBER-1)
0045
0046
0047   /*
0048    * Summary
0049    */
0050 #define BSP_IRQ_NUMBER          (BSP_PROCESSOR_IRQ_MAX_OFFSET + 1)
0051 #define BSP_LOWEST_OFFSET       (BSP_PCI_IRQ_LOWEST_OFFSET)
0052 #define BSP_MAX_OFFSET          (BSP_IRQ_NUMBER - 1)
0053
0054   /*
0055    * Some Processor execption handled as rtems IRQ symbolic name definition
0056    */
0057 #define BSP_DECREMENTER         (BSP_PROCESSOR_IRQ_LOWEST_OFFSET)
0058
0059 #define BSP_INTERRUPT_VECTOR_COUNT BSP_IRQ_NUMBER
0060
0061 /* #include <bsp/irq_supp.h> */
0062
0063 #ifdef __cplusplus
0064 extern "C" {
0065 #endif
0066
0067 void BSP_rtems_irq_mng_init(unsigned cpuId);
0068
0069 #ifdef __cplusplus
0070 }
0071 #endif
0072
0073 #endif
0074 #endif