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authorSebastian Huber <sebastian.huber@embedded-brains.de>2018-04-03 07:20:11 +0200
committerSebastian Huber <sebastian.huber@embedded-brains.de>2018-04-04 10:13:28 +0200
commit27de4e1fb8bcdbdd8cb882fc0d7a2c152b4e027a (patch)
treedef0664dcddc53fd5d599b455c64f76ca2293606 /bsps/shared/dev/rtc/icm7170_reg.c
parentbsps: Move config macros to RTEMS_BSP_CONFIGURE (diff)
downloadrtems-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.c60
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;
+}