source: rtems/c/src/lib/libbsp/arm/edb7312/clock/clockdrv.c @ f3b29236

Last change on this file since f3b29236 was f3b29236, checked in by Sebastian Huber <sebastian.huber@…>, on Sep 18, 2017 at 6:22:38 AM

bsps: Clock_driver_support_install_isr()

Remove old ISR parameter since is not used by the clock driver shell.
Make an implementation optional.

Update #3139.

  • Property mode set to 100644
File size: 2.3 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
21void Clock_isr(void * arg);
22
23#define Clock_driver_support_at_tick()                \
24  do {                                                \
25    *EP7312_TC1EOI = 0xffffffff;                      \
26  } while(0)
27
28#define Clock_driver_support_install_isr( _new )       \
29  do {                                                 \
30    rtems_status_code status = RTEMS_SUCCESSFUL;       \
31    status = rtems_interrupt_handler_install(          \
32        BSP_TC1OI,                                     \
33        "Clock",                                       \
34        RTEMS_INTERRUPT_UNIQUE,                        \
35        Clock_isr,                                     \
36        NULL                                           \
37    );                                                 \
38    assert(status == RTEMS_SUCCESSFUL);                \
39  } while(0)
40
41/*
42 * Set up the clock hardware
43 */
44#if ON_SKYEYE
45  #define TCD_VALUE \
46    (rtems_configuration_get_microseconds_per_tick() * 2000)/25000
47#else
48  #define TCD_VALUE \
49    (rtems_configuration_get_microseconds_per_tick() * 2000)/1000000
50#endif
51
52#define Clock_driver_support_initialize_hardware()  \
53  do {                                              \
54    *EP7312_SYSCON1 |= EP7312_SYSCON1_TC1_PRESCALE; \
55    *EP7312_TC1D = TCD_VALUE;                       \
56    *EP7312_TC1EOI = 0xFFFFFFFF;                    \
57  } while (0)
58
59#define Clock_driver_support_shutdown_hardware()    \
60  do {                                              \
61    rtems_status_code status = RTEMS_SUCCESSFUL;    \
62    status = rtems_interrupt_handler_remove(        \
63        BSP_TC1OI,                                  \
64        Clock_isr,                                  \
65        NULL                                        \
66    );                                              \
67    assert(status == RTEMS_SUCCESSFUL);             \
68  } while (0)
69
70#define CLOCK_DRIVER_USE_DUMMY_TIMECOUNTER
71
72#include "../../../shared/clockdrv_shell.h"
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