lpc24xx: new BSP

c/src/lib/libbsp/arm/lpc24xx/rtc/rtc-config.c

@@ -0,0 +1,93 @@
+/**
+ * @file
+ *
+ * @ingroup lpc24xx
+ *
+ * @brief RTC configuration.
+ */
+
+/*
+ * Copyright (c) 2008
+ * Embedded Brains GmbH
+ * Obere Lagerstr. 30
+ * D-82178 Puchheim
+ * Germany
+ * rtems@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.com/license/LICENSE.
+ */
+
+#include <libchip/rtc.h>
+
+#include <bsp/lpc24xx.h>
+
+#define LPC24XX_RTC_NUMBER 1
+
+static void lpc24xx_rtc_initialize( int minor)
+{
+  /* Enable the RTC and use external clock */
+  RTC_CCR = RTC_CCR_CLKEN | RTC_CCR_CLKSRC;
+
+  /* Disable interrupts */
+  RTC_CIIR = 0;
+  RTC_CISS = 0;
+  RTC_AMR = 0xff;
+
+  /* Clear interrupts */
+  RTC_ILR = RTC_ILR_RTCCIF | RTC_ILR_RTCALF | RTC_ILR_RTSSF;
+}
+
+static int lpc24xx_rtc_get_time( int minor, rtems_time_of_day *tod)
+{
+  tod->ticks = 0;
+  tod->second = RTC_SEC;
+  tod->minute = RTC_MIN;
+  tod->hour = RTC_HOUR;
+  tod->day = RTC_DOM;
+  tod->month = RTC_MONTH;
+  tod->year = RTC_YEAR;
+
+  return 0;
+}
+
+static int lpc24xx_rtc_set_time( int minor, const rtems_time_of_day *tod)
+{
+  RTC_SEC = tod->second;
+  RTC_MIN = tod->minute;
+  RTC_HOUR = tod->hour;
+  RTC_DOM = tod->day;
+  RTC_MONTH = tod->month;
+  RTC_YEAR = tod->year;
+
+  return 0;
+}
+
+static bool lpc24xx_rtc_probe( int minor)
+{
+  return true;
+}
+
+const rtc_fns lpc24xx_rtc_ops = {
+  .deviceInitialize = lpc24xx_rtc_initialize,
+  .deviceGetTime = lpc24xx_rtc_get_time,
+  .deviceSetTime = lpc24xx_rtc_set_time
+};
+
+unsigned long RTC_Count = LPC24XX_RTC_NUMBER;
+
+rtems_device_minor_number RTC_Minor = 0;
+
+rtc_tbl	RTC_Table [LPC24XX_RTC_NUMBER] = {
+  {
+    .sDeviceName = "/dev/rtc",
+    .deviceType = RTC_CUSTOM,
+    .pDeviceFns = &lpc24xx_rtc_ops,
+    .deviceProbe = lpc24xx_rtc_probe,
+    .pDeviceParams = NULL,
+    .ulCtrlPort1 = 0,
+    .ulDataPort = 0,
+    .getRegister = NULL,
+    .setRegister = NULL
+  }
+};