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 +1,80 @@
+/*
+* 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_i2c.h
+* @brief define i2c dev function using bus driver framework
+* @version 1.0 
+* @author AIIT XUOS Lab
+* @date 2021-04-24
+*/
+
+#ifndef DEV_I2C_H
+#define DEV_I2C_H
+
+#include <bus.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define I2C_SLAVE_ADDR           0x44
+#define I2C_WR                               0x0000
+#define I2C_RD                                (1u << 0)
+#define I2C_ADDR_10BIT            (1u << 2)
+#define I2C_NO_START                (1u << 4)
+#define I2C_IGNORE_NACK        (1u << 5)
+#define I2C_NO_READ_ACK       (1u << 6)
+
+struct I2cDataStandard
+{
+    uint16 addr;
+    uint16 flags;
+    uint16 len;
+    uint16 retries;
+    uint8 *buf;
+
+    struct I2cDataStandard *next;
+};
+
+struct I2cHardwareDevice;
+
+struct I2cDevDone
+{
+    uint32 (*dev_open) (struct I2cHardwareDevice *i2c_device);
+    uint32 (*dev_close) (struct I2cHardwareDevice *i2c_device);
+    uint32 (*dev_write) (struct I2cHardwareDevice *i2c_device, struct I2cDataStandard *msg);
+    uint32 (*dev_read) (struct I2cHardwareDevice *i2c_device, struct I2cDataStandard *msg);
+};
+
+struct I2cHardwareDevice
+{
+    struct HardwareDev haldev;
+    const struct I2cDevDone *i2c_dev_done;
+
+    void *private_data;
+};
+
+/*Register the I2C device*/
+int I2cDeviceRegister(struct I2cHardwareDevice *i2c_device, void *i2c_param, const char *device_name);
+
+/*Register the I2C device to the I2C bus*/
+int I2cDeviceAttachToBus(const char *dev_name, const char *bus_name);
+
+/*Find the register I2C device*/
+HardwareDevType I2cDeviceFind(const char *dev_name, enum DevType dev_type);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif