source: rtems/c/src/lib/libbsp/powerpc/score603e/irq/no_pic.c @ df40cc9

4.11
Last change on this file since df40cc9 was c499856, checked in by Chris Johns <chrisj@…>, on Mar 20, 2014 at 9:10:47 PM

Change all references of rtems.com to rtems.org.

  • Property mode set to 100644
File size: 1.8 KB
Line 
1/*
2 *
3 *  This file contains the implementation of the function described in irq.h
4 *
5 *  COPYRIGHT (c) 1989-2009.
6 *  On-Line Applications Research Corporation (OAR).
7 *
8 *  The license and distribution terms for this file may be
9 *  found in the file LICENSE in this distribution or at
10 *  http://www.rtems.org/license/LICENSE.
11 */
12
13#include <rtems.h>
14#include <bsp.h>
15#include <bsp/irq.h>
16#include <bsp/irq_supp.h>
17#include <bsp/vectors.h>
18
19static rtems_irq_connect_data *rtems_hdl_tbl;
20static rtems_irq_connect_data  dflt_entry;
21
22/*
23 * High level IRQ handler called from shared_raw_irq_code_entry
24 */
25int C_dispatch_irq_handler(
26  BSP_Exception_frame *frame,
27  unsigned int excNum
28)
29{
30  register unsigned int irq;
31#if (HAS_PMC_PSC8)
32  uint16_t              check_irq;
33  uint16_t              status_word;
34#endif
35
36  if (excNum == ASM_DEC_VECTOR) {
37    bsp_irq_dispatch_list(rtems_hdl_tbl, BSP_DECREMENTER, dflt_entry.hdl);
38    return 0;
39  }
40
41  irq = read_and_clear_irq();
42
43#if (HAS_PMC_PSC8)
44   if (irq ==  SCORE603E_PCI_IRQ_0) {
45     status_word = read_and_clear_PMC_irq( irq );
46     for (check_irq=SCORE603E_IRQ16; check_irq<=SCORE603E_IRQ19; check_irq++) {
47       if ( Is_PMC_IRQ( check_irq, status_word )) {
48         bsp_irq_dispatch_list_base(rtems_hdl_tbl, check_irq, dflt_entry.hdl);
49       }
50     }
51   } else
52#endif
53   {
54    bsp_irq_dispatch_list_base(rtems_hdl_tbl, irq, dflt_entry.hdl);
55   }
56
57  return 0;
58}
59
60void
61BSP_enable_irq_at_pic(const rtems_irq_number irq)
62{
63  uint16_t  vec_idx  = irq - Score_IRQ_First;
64  unmask_irq( vec_idx );
65}
66
67int
68BSP_disable_irq_at_pic(const rtems_irq_number irq)
69{
70  uint16_t  vec_idx  = irq - Score_IRQ_First;
71  unmask_irq( vec_idx );
72  return 0;
73}
74
75int
76BSP_setup_the_pic(rtems_irq_global_settings *config)
77{
78  dflt_entry    = config->defaultEntry;
79  rtems_hdl_tbl = config->irqHdlTbl;
80  init_irq_data_register();
81  return 1;
82}
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