Adjust directory structure

2021-06-03 17:38:11 +08:00
parent 92301257f3
commit 89a2236b18
1993 changed files with 40 additions and 0 deletions
@@ -0,0 +1,121 @@
+/*
+* 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_i2c.c
+* @brief register i2c bus function using bus driver framework
+* @version 1.0 
+* @author AIIT XUOS Lab
+* @date 2021-04-24
+*/
+
+#include <bus_i2c.h>
+#include <dev_i2c.h>
+
+/*Register the I2C BUS*/
+int I2cBusInit(struct I2cBus *i2c_bus, const char *bus_name)
+{
+    NULL_PARAM_CHECK(i2c_bus);
+    NULL_PARAM_CHECK(bus_name);
+
+    x_err_t ret = EOK;
+
+    if (BUS_INSTALL != i2c_bus->bus.bus_state) {
+        strncpy(i2c_bus->bus.bus_name, bus_name, NAME_NUM_MAX);
+
+        i2c_bus->bus.bus_type = TYPE_I2C_BUS;
+        i2c_bus->bus.bus_state = BUS_INSTALL;
+        i2c_bus->bus.private_data = i2c_bus->private_data;
+
+        ret = BusRegister(&i2c_bus->bus);
+        if (EOK != ret) {
+            KPrintf("I2cBusInit BusRegister error %u\n", ret);
+            return ret;
+        }
+    } else {
+        KPrintf("I2cBusInit BusRegister bus has been register state%u\n", i2c_bus->bus.bus_state);        
+    }
+
+    return ret;
+}
+
+/*Register the I2C Driver*/
+int I2cDriverInit(struct I2cDriver *i2c_driver, const char *driver_name)
+{
+    NULL_PARAM_CHECK(i2c_driver);
+    NULL_PARAM_CHECK(driver_name);
+
+    x_err_t ret = EOK;
+
+    if (DRV_INSTALL != i2c_driver->driver.driver_state) {
+        i2c_driver->driver.driver_type = TYPE_I2C_DRV;
+        i2c_driver->driver.driver_state = DRV_INSTALL;
+
+        strncpy(i2c_driver->driver.drv_name, driver_name, NAME_NUM_MAX);
+
+        i2c_driver->driver.private_data = i2c_driver->private_data;
+
+        ret = I2cDriverRegister(&i2c_driver->driver);
+        if (EOK != ret) {
+            KPrintf("I2cDriverInit DriverRegister error %u\n", ret);
+            return ret;
+        }
+    } else {
+        KPrintf("I2cDriverInit DriverRegister driver has been register state%u\n", i2c_driver->driver.driver_state);
+    }
+
+    return ret;
+}
+
+/*Release the I2C device*/
+int I2cReleaseBus(struct I2cBus *i2c_bus)
+{
+    NULL_PARAM_CHECK(i2c_bus);
+
+    return BusRelease(&i2c_bus->bus);
+}
+
+/*Register the I2C Driver to the I2C BUS*/
+int I2cDriverAttachToBus(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("I2cDriverAttachToBus find i2c bus error!name %s\n", bus_name);
+        return ERROR;
+    }
+
+    if (TYPE_I2C_BUS == bus->bus_type) {
+        driver = I2cDriverFind(drv_name, TYPE_I2C_DRV);
+        if (NONE == driver) {
+            KPrintf("I2cDriverAttachToBus find i2c driver error!name %s\n", drv_name);
+            return ERROR;
+        }
+
+        if (TYPE_I2C_DRV == driver->driver_type) {
+            ret = DriverRegisterToBus(bus, driver);
+            if (EOK != ret) {
+                KPrintf("I2cDriverAttachToBus DriverRegisterToBus error %u\n", ret);
+                return ERROR;
+            }
+        }
+    }
+
+    return ret;
+}