RTEMS 6.1-rc7
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tm27.h
1/*
2 * @file
3 * @ingroup powerpc_motorola_powerpc
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/*
21 * Stuff for Time Test 27
22 */
23
24#include <bsp/irq.h>
25
26#define MUST_WAIT_FOR_INTERRUPT 1
27
28static void null_irq_enable(const rtems_irq_connect_data* a) { (void) a; }
29static void null_irq_disable(const rtems_irq_connect_data* a) { (void) a; }
30static int null_irq_is_enabled(const rtems_irq_connect_data* a) { (void) a; return 0; }
31
32static rtems_irq_connect_data clockIrqData =
33{
34 .name = BSP_DECREMENTER,
35 .hdl = 0,
36 .handle = 0,
37 .on = null_irq_enable,
38 .off = null_irq_disable,
39 .isOn = null_irq_is_enabled
40};
41
42static inline void Install_tm27_vector( rtems_interrupt_handler handler )
43{
44 clockIrqData.hdl = handler;
45 if (!BSP_install_rtems_irq_handler (&clockIrqData)) {
46 printk("Error installing clock interrupt handler!\n");
48 }
49}
50
51#define Cause_tm27_intr() \
52 do { \
53 uint32_t _clicks = 8; \
54 __asm__ volatile( "mtdec %0" : "=r" ((_clicks)) : "r" ((_clicks)) ); \
55 } while (0)
56
57#define Clear_tm27_intr() \
58 do { \
59 uint32_t _clicks = 0xffffffff; \
60 __asm__ volatile( "mtdec %0" : "=r" ((_clicks)) : "r" ((_clicks)) ); \
61 } while (0)
62
63#define Lower_tm27_intr() \
64 do { \
65 uint32_t _msr = 0; \
66 _ISR_Set_level( 0 ); \
67 __asm__ volatile( "mfmsr %0 ;" : "=r" (_msr) : "r" (_msr) ); \
68 _msr |= 0x8002; \
69 __asm__ volatile( "mtmsr %0 ;" : "=r" (_msr) : "r" (_msr) ); \
70 } while (0)
71
72#endif
RTEMS_NO_RETURN void rtems_fatal_error_occurred(uint32_t fatal_code)
Invokes the fatal error handler.
Definition: fatal.c:47
void(* rtems_interrupt_handler)(void *)
Interrupt handler routines shall have this type.
Definition: intr.h:1030
Definition: irq.h:64