diff options
Diffstat (limited to 'ecos/packages/devs/wallclock/freescale/kinetis/current/src/wallclock_kinetis_rtc.cxx')
| -rw-r--r-- | ecos/packages/devs/wallclock/freescale/kinetis/current/src/wallclock_kinetis_rtc.cxx | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/ecos/packages/devs/wallclock/freescale/kinetis/current/src/wallclock_kinetis_rtc.cxx b/ecos/packages/devs/wallclock/freescale/kinetis/current/src/wallclock_kinetis_rtc.cxx new file mode 100644 index 0000000..c4c0fb4 --- /dev/null +++ b/ecos/packages/devs/wallclock/freescale/kinetis/current/src/wallclock_kinetis_rtc.cxx @@ -0,0 +1,105 @@ +//========================================================================== +// +// wallclock_kinetis_rtc.cxx +// +// Wallclock implementation for Kinetis RTC module +// +//========================================================================== +// ####ECOSGPLCOPYRIGHTBEGIN#### +// ------------------------------------------- +// This file is part of eCos, the Embedded Configurable Operating System. +// Copyright (C) 2011 Free Software Foundation, Inc. +// +// eCos is free software; you can redistribute it and/or modify it under +// the terms of the GNU General Public License as published by the Free +// Software Foundation; either version 2 or (at your option) any later +// version. +// +// eCos is distributed in the hope that it will be useful, but WITHOUT +// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +// for more details. +// +// You should have received a copy of the GNU General Public License +// along with eCos; if not, write to the Free Software Foundation, Inc., +// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. +// +// As a special exception, if other files instantiate templates or use +// macros or inline functions from this file, or you compile this file +// and link it with other works to produce a work based on this file, +// this file does not by itself cause the resulting work to be covered by +// the GNU General Public License. However the source code for this file +// must still be made available in accordance with section (3) of the GNU +// General Public License v2. +// +// This exception does not invalidate any other reasons why a work based +// on this file might be covered by the GNU General Public License. +// ------------------------------------------- +// ####ECOSGPLCOPYRIGHTEND#### +//========================================================================== +//#####DESCRIPTIONBEGIN#### +// +// Author(s): Ilija Kocho <ilijak@siva.com.mk> +// Contributors: +// Date: 2011-04-23 +// Purpose: Wallclock driver for Kinetis RTC module +// +//####DESCRIPTIONEND#### +// +//========================================================================== + +#include <pkgconf/hal.h> +#include <pkgconf/wallclock.h> +#include <pkgconf/devices_wallclock_kinetis_rtc.h> + +#include <cyg/hal/hal_io.h> +#include <cyg/hal/hal_intr.h> +#include <cyg/infra/cyg_type.h> + +#include <cyg/io/wallclock.hxx> + +void +Cyg_WallClock::init_hw_seconds(void) +{ + volatile cyghwr_hal_kinetis_rtc_t *rtc_p = CYGHWR_HAL_KINETIS_RTC_P; +#ifdef CYGSEM_WALLCLOCK_SET_GET_MODE + // if RTC is disabled (e.g. due to power loss) initialize it. + if(!(rtc_p->sr &CYGHWR_HAL_KINETIS_RTC_SR_TCE)) +#endif + { + // halt clock, reset + rtc_p->sr &= ~CYGHWR_HAL_KINETIS_RTC_SR_TCE; + // set time + rtc_p->tpr = 0; + rtc_p->tsr = 0; + // restart clock + rtc_p->sr |= CYGHWR_HAL_KINETIS_RTC_SR_TCE; + } +} + +cyg_uint32 +Cyg_WallClock::get_hw_seconds(void) +{ + volatile cyghwr_hal_kinetis_rtc_t *rtc_p = CYGHWR_HAL_KINETIS_RTC_P; + + return rtc_p->tsr; +} + +#ifdef CYGSEM_WALLCLOCK_SET_GET_MODE +void +Cyg_WallClock::set_hw_seconds(cyg_uint32 secs) +{ + volatile cyghwr_hal_kinetis_rtc_t *rtc_p = CYGHWR_HAL_KINETIS_RTC_P; + + // halt clock, reset + rtc_p->sr &= ~CYGHWR_HAL_KINETIS_RTC_SR_TCE; + // set time + rtc_p->tpr = 0; + rtc_p->tsr = secs; + // restart clock + rtc_p->sr |= CYGHWR_HAL_KINETIS_RTC_SR_TCE; +} +#endif // CYGSEM_WALLCLOCK_SET_GET_MODE + +//========================================================================== +// EOF wallclock_kinetis_rtc.cxx |