source: rtems/bsps/arm/edb7312/clock/clockdrv.c

Last change on this file was 1eed6f8, checked in by Sebastian Huber <sebastian.huber@…>, on 03/23/23 at 15:53:30

bsps: Avoid unused argument in clock interrupt

Pass the parameter of the clock interrupt handler to
Clock_driver_support_at_tick() and Clock_driver_timecounter_tick(). This makes
it possible to use the interrupt handler argument in clock drivers.

Use the interrupt handler provided by Clock_driver_support_install_isr() to
avoid local delarations of Clock_isr().

Update #4862.
  • Property mode set to 100644
File size: 1.8 KB
Line 
1/*
2 * Cirrus EP7312 Clock driver
3 *
4 * Copyright (c) 2002 by Jay Monkman <jtm@smoothsmoothie.com>
5 *
6 *  The license and distribution terms for this file may be
7 *  found in the file LICENSE in this distribution or at
8 *  http://www.rtems.org/license/LICENSE.
9 */
10
11#include <rtems.h>
12#include <ep7312.h>
13#include <bsp.h>
14#include <bsp/irq.h>
15#include <assert.h>
16
17#if ON_SKYEYE==1
18  #define CLOCK_DRIVER_USE_FAST_IDLE 1
19#endif
20
21#define Clock_driver_support_at_tick(arg)             \
22  do {                                                \
23    *EP7312_TC1EOI = 0xffffffff;                      \
24  } while(0)
25
26#define Clock_driver_support_install_isr( _new )       \
27  do {                                                 \
28    rtems_status_code status = RTEMS_SUCCESSFUL;       \
29    status = rtems_interrupt_handler_install(          \
30        BSP_TC1OI,                                     \
31        "Clock",                                       \
32        RTEMS_INTERRUPT_UNIQUE,                        \
33        _new,                                          \
34        NULL                                           \
35    );                                                 \
36    assert(status == RTEMS_SUCCESSFUL);                \
37  } while(0)
38
39/*
40 * Set up the clock hardware
41 */
42#if ON_SKYEYE
43  #define TCD_VALUE \
44    (rtems_configuration_get_microseconds_per_tick() * 2000)/25000
45#else
46  #define TCD_VALUE \
47    (rtems_configuration_get_microseconds_per_tick() * 2000)/1000000
48#endif
49
50#define Clock_driver_support_initialize_hardware()  \
51  do {                                              \
52    *EP7312_SYSCON1 |= EP7312_SYSCON1_TC1_PRESCALE; \
53    *EP7312_TC1D = TCD_VALUE;                       \
54    *EP7312_TC1EOI = 0xFFFFFFFF;                    \
55  } while (0)
56
57#define CLOCK_DRIVER_USE_DUMMY_TIMECOUNTER
58
59#include "../../../shared/dev/clock/clockimpl.h"
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