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

| RTEMS 5.4-rc2

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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
28void 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};
34static void Install_tm27_vector(void (*_handler)(void))
35{
36 clockIrqData.hdl = _handler;
37 if (!BSP_install_rtems_irq_handler (&clockIrqData)) {
38 printk("Error installing clock interrupt handler!\n");
39 rtems_fatal_error_occurred(1);
40 }
41}
42
43#define Cause_tm27_intr() \
44 do { \
45 uint32_t _clicks = 8; \
46 __asm__ volatile( "mtdec %0" : "=r" ((_clicks)) : "r" ((_clicks)) ); \
47 } while (0)
48
49#define Clear_tm27_intr() \
50 do { \
51 uint32_t _clicks = 0xffffffff; \
52 __asm__ volatile( "mtdec %0" : "=r" ((_clicks)) : "r" ((_clicks)) ); \
53 } while (0)
54
55#define Lower_tm27_intr() \
56 do { \
57 uint32_t _msr = 0; \
58 _ISR_Set_level( 0 ); \
59 __asm__ volatile( "mfmsr %0 ;" : "=r" (_msr) : "r" (_msr) ); \
60 _msr |= 0x8002; \
61 __asm__ volatile( "mtmsr %0 ;" : "=r" (_msr) : "r" (_msr) ); \
62 } while (0)
63
64#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_irq_connect_data__
Definition: irq.h:45