RTEMS: bsps/powerpc/mvme5500/include/tm27.h Source File

| RTEMS 5.4-rc2

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tm27.h
1/*
2 * @file
3 * @ingroup powerpc_mvme5500
4 * @brief Implementations for interrupt mechanisms for Time Test 27
5 */
6
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#ifndef _RTEMS_TMTEST27
14#error "This is an RTEMS internal file you must not include directly."
15#endif
16
17#ifndef __tm27_h
18#define __tm27_h
19
20#include <bsp/irq.h>
21
22/*
23 * Stuff for Time Test 27
24 */
25
26#define MUST_WAIT_FOR_INTERRUPT 1
27
28static void nullFunc(void) {}
29static rtems_irq_connect_data clockIrqData = {BSP_DECREMENTER,
30 0,
31 (rtems_irq_enable)nullFunc,
32 (rtems_irq_disable)nullFunc,
33 (rtems_irq_is_enabled) nullFunc};
34
35 RTEMS_INLINE_ROUTINE void Install_tm27_vector(void (*_handler)())
36{
37 clockIrqData.hdl = _handler;
38 if (!BSP_install_rtems_irq_handler (&clockIrqData)) {
39 printk("Error installing clock interrupt handler!\n");
40 rtems_fatal_error_occurred(1);
41 }
42}
43
44#define Cause_tm27_intr() \
45 do { \
46 uint32_t _clicks = 1; \
47 __asm__ volatile( "mtdec %0" : "=r" ((_clicks)) : "r" ((_clicks)) ); \
48 } while (0)
49
50
51#define Clear_tm27_intr() \
52 do { \
53 uint32_t _clicks = 0xffffffff; \
54 __asm__ volatile( "mtdec %0" : "=r" ((_clicks)) : "r" ((_clicks)) ); \
55 } while (0)
56
57#define Lower_tm27_intr() \
58 do { \
59 uint32_t _msr = 0; \
60 _ISR_Set_level( 0 ); \
61 __asm__ volatile( "mfmsr %0 ;" : "=r" (_msr) : "r" (_msr) ); \
62 _msr |= 0x8002; \
63 __asm__ volatile( "mtmsr %0 ;" : "=r" (_msr) : "r" (_msr) ); \
64 } while (0)
65
66#endif
rtems_fatal_error_occurred
void rtems_fatal_error_occurred(uint32_t the_error) RTEMS_NO_RETURN
Invokes the internal error handler with a source of INTERNAL_ERROR_RTEMS_API and is internal set to f...
Definition: fatal.c:28
RTEMS_INLINE_ROUTINE
#define RTEMS_INLINE_ROUTINE
Definition: basedefs.h:66
__rtems_irq_connect_data__
Definition: irq.h:45