First commit XiUOS

resources/timer/dev_hwtimer.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 dev_hwtimer.c
+* @brief register hwtimer dev function using bus driver framework
+* @version 1.0 
+* @author AIIT XUOS Lab
+* @date 2021-04-24
+*/
+
+#include <bus_hwtimer.h>
+#include <dev_hwtimer.h>
+
+static DoubleLinklistType hwtimerdev_linklist;
+
+/*Create the hwtimer device linklist*/
+static void HwtimerDeviceLinkInit()
+{
+    InitDoubleLinkList(&hwtimerdev_linklist);
+}
+
+HardwareDevType HwtimerDeviceFind(const char *dev_name)
+{
+    NULL_PARAM_CHECK(dev_name);
+    
+    struct HardwareDev *device = NONE;
+
+    DoubleLinklistType *node = NONE;
+    DoubleLinklistType *head = &hwtimerdev_linklist;
+
+    for (node = head->node_next; node != head; node = node->node_next) {
+        device = SYS_DOUBLE_LINKLIST_ENTRY(node, struct HardwareDev, dev_link);
+        if (!strcmp(device->dev_name, dev_name)) {
+            return device;
+        }
+    }
+
+    KPrintf("HwtimerDeviceFind cannot find the %s device.return NULL\n", dev_name);
+    return NONE;
+}
+
+int HwtimerDeviceRegister(struct HwtimerHardwareDevice *hwtimer_device, void *hwtimer_param, const char *device_name)
+{
+    NULL_PARAM_CHECK(hwtimer_device);
+    NULL_PARAM_CHECK(device_name);
+
+    x_err_t ret = EOK;    
+    static x_bool dev_link_flag = RET_FALSE;
+
+    if (dev_link_flag) {
+        HwtimerDeviceLinkInit();
+        dev_link_flag = RET_TRUE;
+    }
+
+    if (DEV_INSTALL != hwtimer_device->haldev.dev_state) {
+        strncpy(hwtimer_device->haldev.dev_name, device_name, NAME_NUM_MAX);
+        hwtimer_device->haldev.dev_type = TYPE_HWTIMER_DEV;
+        hwtimer_device->haldev.dev_state = DEV_INSTALL;
+
+        hwtimer_device->haldev.dev_done = (struct HalDevDone *)hwtimer_device->dev_done;
+
+        hwtimer_device->haldev.private_data = hwtimer_param;
+
+        DoubleLinkListInsertNodeAfter(&hwtimerdev_linklist, &(hwtimer_device->haldev.dev_link));
+    } else {
+        KPrintf("HwtimerDeviceRegister device has been register state%u\n", hwtimer_device->haldev.dev_state);        
+    }
+
+    return ret;
+}
+
+int HwtimerDeviceAttachToBus(const char *dev_name, const char *bus_name)
+{
+    NULL_PARAM_CHECK(dev_name);
+    NULL_PARAM_CHECK(bus_name);
+    
+    x_err_t ret = EOK;
+
+    struct Bus *bus;
+    struct HardwareDev *device;
+
+    bus = BusFind(bus_name);
+    if (NONE == bus) {
+        KPrintf("HwtimerDeviceAttachToBus find hwtimer bus error!name %s\n", bus_name);
+        return ERROR;
+    }
+    
+    if (TYPE_HWTIMER_BUS == bus->bus_type) {
+        device = HwtimerDeviceFind(dev_name);
+        if (NONE == device) {
+            KPrintf("HwtimerDeviceAttachToBus find hwtimer device error!name %s\n", dev_name);
+            return ERROR;
+        }
+
+        if (TYPE_HWTIMER_DEV == device->dev_type) {
+            ret = DeviceRegisterToBus(bus, device);
+            if (EOK != ret) {
+                KPrintf("HwtimerDeviceAttachToBus DeviceRegisterToBus error %u\n", ret);
+                return ERROR;
+            }
+        }
+    }
+
+    return EOK;
+}