forked from xuos/xiuos
123 lines
3.4 KiB
C
123 lines
3.4 KiB
C
/*
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* Copyright (c) 2020 AIIT XUOS Lab
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* XiUOS is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PSL v2 for more details.
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*/
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/**
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* @file bus_can.c
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* @brief register can bus function using bus driver framework
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* @version 1.0
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* @author AIIT XUOS Lab
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* @date 2021-04-24
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*/
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#include <bus_can.h>
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#include <dev_can.h>
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/*Register the CAN BUS*/
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int CanBusInit(struct CanBus *can_bus, const char *bus_name)
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{
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NULL_PARAM_CHECK(can_bus);
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NULL_PARAM_CHECK(bus_name);
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x_err_t ret = EOK;
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if (BUS_INSTALL != can_bus->bus.bus_state) {
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strncpy(can_bus->bus.bus_name, bus_name, NAME_NUM_MAX);
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can_bus->bus.bus_type = TYPE_CAN_BUS;
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can_bus->bus.bus_state = BUS_INSTALL;
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can_bus->bus.private_data = can_bus->private_data;
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ret = BusRegister(&can_bus->bus);
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if (EOK != ret) {
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KPrintf("CanBusInit BusRegister error %u\n", ret);
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return ret;
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}
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} else {
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KPrintf("CanBusInit BusRegister bus has been register state%u\n", can_bus->bus.bus_state);
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}
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return ret;
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}
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/*Register the CAN Driver*/
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int CanDriverInit(struct CanDriver *can_driver, const char *driver_name)
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{
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NULL_PARAM_CHECK(can_driver);
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NULL_PARAM_CHECK(driver_name);
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x_err_t ret = EOK;
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if (DRV_INSTALL != can_driver->driver.driver_state) {
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can_driver->driver.driver_type = TYPE_CAN_DRV;
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can_driver->driver.driver_state = DRV_INSTALL;
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strncpy(can_driver->driver.drv_name, driver_name, NAME_NUM_MAX);
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can_driver->driver.configure = can_driver->configure;
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can_driver->driver.private_data = can_driver->private_data;
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ret = CanDriverRegister(&can_driver->driver);
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if (EOK != ret) {
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KPrintf("CanDriverInit DriverRegister error %u\n", ret);
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return ret;
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}
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} else {
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KPrintf("CanDriverInit DriverRegister driver has been register state%u\n", can_driver->driver.driver_state);
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}
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return ret;
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}
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/*Release the CAN device*/
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int CanReleaseBus(struct CanBus *can_bus)
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{
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NULL_PARAM_CHECK(can_bus);
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return BusRelease(&can_bus->bus);
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}
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/*Register the CAN Driver to the CAN BUS*/
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int CanDriverAttachToBus(const char *drv_name, const char *bus_name)
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{
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NULL_PARAM_CHECK(drv_name);
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NULL_PARAM_CHECK(bus_name);
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x_err_t ret = EOK;
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struct Bus *bus;
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struct Driver *driver;
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bus = BusFind(bus_name);
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if (NONE == bus) {
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KPrintf("CanDriverAttachToBus find can bus error!name %s\n", bus_name);
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return ERROR;
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}
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if (TYPE_CAN_BUS == bus->bus_type) {
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driver = CanDriverFind(drv_name, TYPE_CAN_DRV);
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if (NONE == driver) {
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KPrintf("CanDriverAttachToBus find can driver error!name %s\n", drv_name);
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return ERROR;
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}
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if (TYPE_CAN_DRV == driver->driver_type) {
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ret = DriverRegisterToBus(bus, driver);
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if (EOK != ret) {
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KPrintf("CanDriverAttachToBus DriverRegisterToBus error %u\n", ret);
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return ERROR;
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}
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}
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}
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return ret;
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}
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