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Ubiquitous/XiUOS/resources/rtc/bus_rtc.c

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+/*
+* Copyright (c) 2020 AIIT XUOS Lab
+* XiUOS is licensed under Mulan PSL v2.
+* You can use this software according to the terms and conditions of the Mulan PSL v2.
+* You may obtain a copy of Mulan PSL v2 at:
+*        http://license.coscl.org.cn/MulanPSL2
+* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+* See the Mulan PSL v2 for more details.
+*/
+
+/**
+* @file bus_rtc.c
+* @brief register rtc bus function using bus driver framework
+* @version 1.0 
+* @author AIIT XUOS Lab
+* @date 2021-04-24
+*/
+
+#include <bus_rtc.h>
+#include <dev_rtc.h>
+
+int RtcBusInit(struct RtcBus *rtc_bus, const char *bus_name)
+{
+    NULL_PARAM_CHECK(rtc_bus);
+    NULL_PARAM_CHECK(bus_name);
+
+    x_err_t ret = EOK;
+
+    if (BUS_INSTALL != rtc_bus->bus.bus_state) {
+        strncpy(rtc_bus->bus.bus_name, bus_name, NAME_NUM_MAX);
+
+        rtc_bus->bus.bus_type = TYPE_RTC_BUS;
+        rtc_bus->bus.bus_state = BUS_INSTALL;
+        rtc_bus->bus.private_data = rtc_bus->private_data;
+
+        ret = BusRegister(&rtc_bus->bus);
+        if (EOK != ret) {
+            KPrintf("RtcBusInit BusRegister error %u\n", ret);
+            return ret;
+        }
+    } else {
+        KPrintf("RtcBusInit BusRegister bus has been register state%u\n", rtc_bus->bus.bus_state);        
+    }
+
+    return ret;
+}
+
+int RtcDriverInit(struct RtcDriver *rtc_driver, const char *driver_name)
+{
+    NULL_PARAM_CHECK(rtc_driver);
+    NULL_PARAM_CHECK(driver_name);
+
+    x_err_t ret = EOK;
+
+    if (DRV_INSTALL != rtc_driver->driver.driver_state) {
+        rtc_driver->driver.driver_type = TYPE_RTC_DRV;
+        rtc_driver->driver.driver_state = DRV_INSTALL;
+
+        strncpy(rtc_driver->driver.drv_name, driver_name, NAME_NUM_MAX);
+
+        rtc_driver->driver.configure = rtc_driver->configure;
+
+        ret = RtcDriverRegister(&rtc_driver->driver);
+        if (EOK != ret) {
+            KPrintf("RtcDriverInit DriverRegister error %u\n", ret);
+            return ret;
+        }
+    } else {
+        KPrintf("RtcDriverInit DriverRegister driver has been register state%u\n", rtc_driver->driver.driver_state);
+    }
+
+    return ret;
+}
+
+int RtcReleaseBus(struct RtcBus *rtc_bus)
+{
+    NULL_PARAM_CHECK(rtc_bus);
+
+    return BusRelease(&rtc_bus->bus);
+}
+
+int RtcDriverAttachToBus(const char *drv_name, const char *bus_name)
+{
+    NULL_PARAM_CHECK(drv_name);
+    NULL_PARAM_CHECK(bus_name);
+
+    x_err_t ret = EOK;
+
+    struct Bus *bus;
+    struct Driver *driver;
+
+    bus = BusFind(bus_name);
+    if (NONE == bus) {
+        KPrintf("RtcDriverAttachToBus find rtc bus error!name %s\n", bus_name);
+        return ERROR;
+    }
+
+    if (TYPE_RTC_BUS == bus->bus_type) {
+        driver = RtcDriverFind(drv_name, TYPE_RTC_DRV);
+        if (NONE == driver) {
+            KPrintf("RtcDriverAttachToBus find rtc driver error!name %s\n", drv_name);
+            return ERROR;
+        }
+
+        if (TYPE_RTC_DRV == driver->driver_type) {
+            ret = DriverRegisterToBus(bus, driver);
+            if (EOK != ret) {
+                KPrintf("RtcDriverAttachToBus DriverRegisterToBus error %u\n", ret);
+                return ERROR;
+            }
+        }
+    }
+
+    return ret;
+}