diff options
author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-04-03 07:20:11 +0200 |
---|---|---|
committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-04-04 10:13:28 +0200 |
commit | 27de4e1fb8bcdbdd8cb882fc0d7a2c152b4e027a (patch) | |
tree | def0664dcddc53fd5d599b455c64f76ca2293606 /bsps/shared/dev/rtc/icm7170_reg.c | |
parent | bsps: Move config macros to RTEMS_BSP_CONFIGURE (diff) | |
download | rtems-27de4e1fb8bcdbdd8cb882fc0d7a2c152b4e027a.tar.bz2 |
bsps: Move libchip to bsps
This patch is a part of the BSP source reorganization.
Update #3285.
Diffstat (limited to 'bsps/shared/dev/rtc/icm7170_reg.c')
-rw-r--r-- | bsps/shared/dev/rtc/icm7170_reg.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/bsps/shared/dev/rtc/icm7170_reg.c b/bsps/shared/dev/rtc/icm7170_reg.c new file mode 100644 index 0000000000..747f1f218d --- /dev/null +++ b/bsps/shared/dev/rtc/icm7170_reg.c @@ -0,0 +1,60 @@ +/* + * This file contains a typical set of register access routines which may be + * used with the icm7170 chip if accesses to the chip are as follows: + * + * + registers are accessed as bytes + * + registers are only byte-aligned (no address gaps) + * + * COPYRIGHT (c) 1989-1997. + * On-Line Applications Research Corporation (OAR). + * + * 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 <rtems.h> +#include <libchip/rtc.h> +#include <libchip/icm7170.h> + +#ifndef _ICM7170_MULTIPLIER +#define _ICM7170_MULTIPLIER 1 +#define _ICM7170_NAME(_X) _X +#define _ICM7170_TYPE uint8_t +#endif + +#define CALCULATE_REGISTER_ADDRESS( _base, _reg ) \ + (_ICM7170_TYPE *)((_base) + ((_reg) * _ICM7170_MULTIPLIER )) + +/* + * ICM7170 Get Register Routine + */ + +uint32_t _ICM7170_NAME(icm7170_get_register)( + uintptr_t ulCtrlPort, + uint8_t ucRegNum +) +{ + _ICM7170_TYPE *port; + + port = CALCULATE_REGISTER_ADDRESS( ulCtrlPort, ucRegNum ); + + return *port; +} + +/* + * ICM7170 Set Register Routine + */ + +void _ICM7170_NAME(icm7170_set_register)( + uintptr_t ulCtrlPort, + uint8_t ucRegNum, + uint32_t ucData +) +{ + _ICM7170_TYPE *port; + + port = CALCULATE_REGISTER_ADDRESS( ulCtrlPort, ucRegNum ); + + *port = ucData; +} |