1 /*
2 * COPYRIGHT (C) 2018, Real-Thread Information Technology Ltd
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 *
6 * Change Logs:
7 * Date Author Notes
8 * 2012-5-30 Bernard the first version
9 */
10
11 #include <drivers/mtd_nor.h>
12
13 #ifdef RT_USING_MTD_NOR
14
15 /**
16 * RT-Thread Generic Device Interface
17 */
_mtd_init(rt_device_t dev)18 static rt_err_t _mtd_init(rt_device_t dev)
19 {
20 return RT_EOK;
21 }
22
_mtd_open(rt_device_t dev,rt_uint16_t oflag)23 static rt_err_t _mtd_open(rt_device_t dev, rt_uint16_t oflag)
24 {
25 return RT_EOK;
26 }
27
_mtd_close(rt_device_t dev)28 static rt_err_t _mtd_close(rt_device_t dev)
29 {
30 return RT_EOK;
31 }
32
_mtd_read(rt_device_t dev,rt_off_t pos,void * buffer,rt_size_t size)33 static rt_size_t _mtd_read(rt_device_t dev,
34 rt_off_t pos,
35 void *buffer,
36 rt_size_t size)
37 {
38 return size;
39 }
40
_mtd_write(rt_device_t dev,rt_off_t pos,const void * buffer,rt_size_t size)41 static rt_size_t _mtd_write(rt_device_t dev,
42 rt_off_t pos,
43 const void *buffer,
44 rt_size_t size)
45 {
46 return size;
47 }
48
_mtd_control(rt_device_t dev,int cmd,void * args)49 static rt_err_t _mtd_control(rt_device_t dev, int cmd, void *args)
50 {
51 return RT_EOK;
52 }
53
54 #ifdef RT_USING_DEVICE_OPS
55 const static struct rt_device_ops mtd_nor_ops =
56 {
57 _mtd_init,
58 _mtd_open,
59 _mtd_close,
60 _mtd_read,
61 _mtd_write,
62 _mtd_control
63 };
64 #endif
65
rt_mtd_nor_register_device(const char * name,struct rt_mtd_nor_device * device)66 rt_err_t rt_mtd_nor_register_device(const char *name,
67 struct rt_mtd_nor_device *device)
68 {
69 rt_device_t dev;
70
71 dev = RT_DEVICE(device);
72 RT_ASSERT(dev != RT_NULL);
73
74 /* set device class and generic device interface */
75 dev->type = RT_Device_Class_MTD;
76 #ifdef RT_USING_DEVICE_OPS
77 dev->ops = &mtd_nor_ops;
78 #else
79 dev->init = _mtd_init;
80 dev->open = _mtd_open;
81 dev->read = _mtd_read;
82 dev->write = _mtd_write;
83 dev->close = _mtd_close;
84 dev->control = _mtd_control;
85 #endif
86
87 dev->rx_indicate = RT_NULL;
88 dev->tx_complete = RT_NULL;
89
90 /* register to RT-Thread device system */
91 return rt_device_register(dev, name, RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_STANDALONE);
92 }
93
94 #endif
95