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bsp/atsam: Add RTC driver

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This commit is contained in:
Alexander Krutwig
2016-07-04 14:10:34 +02:00
committed by Sebastian Huber
parent 0057e38f9d
commit 137bd3747e
2 changed files with 104 additions and 1 deletions
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c/src/lib/libbsp/arm/atsam/Makefile.am
+5 -1
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@@ -428,10 +428,14 @@ if HAS_NETWORKING
libbsp_a_SOURCES += network/if_atsam.c
endif
# i2c
# I2C
libbsp_a_SOURCES += i2c/atsam_i2c_bus.c
libbsp_a_SOURCES += i2c/atsam_i2c_init.c
# RTC
libbsp_a_SOURCES += ../../shared/tod.c
libbsp_a_SOURCES += rtc/rtc-config.c
# Includes
libbsp_a_CPPFLAGS += -I$(srcdir)/../shared/CMSIS/Include
libbsp_a_CPPFLAGS += -I$(srcdir)/libraries/libboard
c/src/lib/libbsp/arm/atsam/rtc/rtc-config.c
+99
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@@ -0,0 +1,99 @@
/*
* Copyright (c) 2016 embedded brains GmbH
*
* embedded brains GmbH
* Dornierstr. 4
* 82178 Puchheim
* Germany
* <info@embedded-brains.de>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#include <libchip/chip.h>
#include <libchip/rtc.h>
#include <bsp.h>
#define ARBITRARY_DAY_OF_WEEK 1
static void atsam_rtc_initialize(int minor)
{
Rtc *rtc = RTC;
RTC_DisableIt(rtc, 0x1F);
}
static int atsam_rtc_get_time(int minor, rtems_time_of_day *tod)
{
Rtc *rtc = RTC;
uint8_t hour;
uint8_t minute;
uint8_t second;
uint16_t year;
uint8_t month;
uint8_t day;
uint8_t week;
RTC_GetDate(rtc, &year, &month, &day, &week);
RTC_GetTime(rtc, &hour, &minute, &second);
tod->ticks = 0;
tod->second = second;
tod->minute = minute;
tod->hour = hour;
tod->day = day;
tod->month = month;
tod->year = year;
return 0;
}
static int atsam_rtc_set_time(int minor, const rtems_time_of_day *tod)
{
Rtc *rtc = RTC;
uint8_t hour;
uint8_t minute;
uint8_t second;
uint16_t year;
uint8_t month;
uint8_t day;
uint8_t week;
second = (uint8_t) tod->second;
minute = (uint8_t) tod->minute;
hour = (uint8_t) tod->hour;
day = (uint8_t) tod->day;
month = (uint8_t) tod->month;
week = ARBITRARY_DAY_OF_WEEK;
year = (uint16_t) tod->year;
RTC_SetDate(rtc, year, month, day, week);
RTC_SetTime(rtc, hour, minute, second);
return 0;
}
static bool atsam_rtc_probe(int minor)
{
return true;
}
const rtc_fns atsam_rtc_ops = {
.deviceInitialize = atsam_rtc_initialize,
.deviceGetTime = atsam_rtc_get_time,
.deviceSetTime = atsam_rtc_set_time
};
rtc_tbl RTC_Table[] = {
{
.sDeviceName = "/dev/rtc",
.deviceType = RTC_CUSTOM,
.pDeviceFns = &atsam_rtc_ops,
.deviceProbe = atsam_rtc_probe
}
};
size_t RTC_Count = RTEMS_ARRAY_SIZE(RTC_Table);