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体验新版 GitCode,发现更多精彩内容 >>
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d01b2ca8
编写于
1月 19, 2015
作者:
B
Bernard Xiong
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
[DeviceDrivers] Add pin io driver framework
上级
24755681
变更
3
隐藏空白更改
内联
并排
Showing
3 changed file
with
211 addition
and
0 deletion
+211
-0
components/drivers/include/drivers/pin.h
components/drivers/include/drivers/pin.h
+79
-0
components/drivers/misc/SConscript
components/drivers/misc/SConscript
+14
-0
components/drivers/misc/pin.c
components/drivers/misc/pin.c
+118
-0
未找到文件。
components/drivers/include/drivers/pin.h
0 → 100644
浏览文件 @
d01b2ca8
/*
* File : pin.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2015, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
* 2015-01-20 Bernard the first version
*/
#ifndef PIN_H__
#define PIN_H__
#include <rtthread.h>
#include <rtdevice.h>
#ifdef __cplusplus
extern
"C"
{
#endif
/* pin device and operations for RT-Thread */
struct
rt_device_pin
{
struct
rt_device
parent
;
const
struct
rt_pin_ops
*
ops
;
};
#define PIN_LOW 0x00
#define PIN_HIGH 0x01
#define PIN_MODE_OUTPUT 0x00
#define PIN_MODE_INPUT 0x01
#define PIN_MODE_INPUT_PULLUP 0x02
struct
rt_device_pin_mode
{
rt_uint16_t
pin
;
rt_uint16_t
mode
;
};
struct
rt_device_pin_status
{
rt_uint16_t
pin
;
rt_uint16_t
status
;
};
struct
rt_pin_ops
{
void
(
*
pin_mode
)
(
struct
rt_device
*
device
,
rt_base_t
pin
,
rt_base_t
mode
);
void
(
*
pin_write
)(
struct
rt_device
*
device
,
rt_base_t
pin
,
rt_base_t
value
);
int
(
*
pin_read
)
(
struct
rt_device
*
device
,
rt_base_t
pin
);
/* TODO: add GPIO interrupt */
};
int
rt_device_pin_register
(
const
char
*
name
,
const
struct
rt_pin_ops
*
ops
,
void
*
user_data
);
void
rt_pin_mode
(
rt_base_t
pin
,
rt_base_t
mode
);
void
rt_pin_write
(
rt_base_t
pin
,
rt_base_t
value
);
int
rt_pin_read
(
rt_base_t
pin
);
#ifdef __cplusplus
}
#endif
#endif
components/drivers/misc/SConscript
0 → 100644
浏览文件 @
d01b2ca8
from
building
import
*
cwd
=
GetCurrentDir
()
src
=
[]
CPPPATH
=
[
cwd
+
'/../include'
]
group
=
[]
if
GetDepend
([
'RT_USING_PIN'
]):
src
=
src
+
[
'pin.c'
]
if
len
(
src
):
group
=
DefineGroup
(
'DeviceDrivers'
,
src
,
depend
=
[
''
],
CPPPATH
=
CPPPATH
)
Return
(
'group'
)
components/drivers/misc/pin.c
0 → 100644
浏览文件 @
d01b2ca8
/*
* File : pin.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2015, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
* 2015-01-20 Bernard the first version
*/
#include <drivers/pin.h>
#ifdef RT_USING_FINSH
#include <finsh.h>
#endif
static
struct
rt_device_pin
_hw_pin
;
static
rt_size_t
_pin_read
(
rt_device_t
dev
,
rt_off_t
pos
,
void
*
buffer
,
rt_size_t
size
)
{
struct
rt_device_pin_status
*
status
;
struct
rt_device_pin
*
pin
=
(
struct
rt_device_pin
*
)
dev
;
/* check parameters */
RT_ASSERT
(
pin
!=
RT_NULL
);
status
=
(
struct
rt_device_pin_status
*
)
buffer
;
if
(
status
==
RT_NULL
||
size
!=
sizeof
(
*
status
))
return
0
;
status
->
status
=
pin
->
ops
->
pin_read
(
dev
,
status
->
pin
);
return
size
;
}
static
rt_size_t
_pin_write
(
rt_device_t
dev
,
rt_off_t
pos
,
const
void
*
buffer
,
rt_size_t
size
)
{
struct
rt_device_pin_status
*
status
;
struct
rt_device_pin
*
pin
=
(
struct
rt_device_pin
*
)
dev
;
/* check parameters */
RT_ASSERT
(
pin
!=
RT_NULL
);
status
=
(
struct
rt_device_pin_status
*
)
buffer
;
if
(
status
==
RT_NULL
||
size
!=
sizeof
(
*
status
))
return
0
;
pin
->
ops
->
pin_write
(
dev
,
(
rt_base_t
)
status
->
pin
,
(
rt_base_t
)
status
->
status
);
return
size
;
}
static
rt_err_t
_pin_control
(
rt_device_t
dev
,
rt_uint8_t
cmd
,
void
*
args
)
{
struct
rt_device_pin_mode
*
mode
;
struct
rt_device_pin
*
pin
=
(
struct
rt_device_pin
*
)
dev
;
/* check parameters */
RT_ASSERT
(
pin
!=
RT_NULL
);
mode
=
(
struct
rt_device_pin_mode
*
)
args
;
if
(
mode
==
RT_NULL
)
return
-
RT_ERROR
;
pin
->
ops
->
pin_mode
(
dev
,
(
rt_base_t
)
mode
->
pin
,
(
rt_base_t
)
mode
->
mode
);
return
0
;
}
int
rt_device_pin_register
(
const
char
*
name
,
const
struct
rt_pin_ops
*
ops
,
void
*
user_data
)
{
_hw_pin
.
parent
.
type
=
RT_Device_Class_Miscellaneous
;
_hw_pin
.
parent
.
rx_indicate
=
RT_NULL
;
_hw_pin
.
parent
.
tx_complete
=
RT_NULL
;
_hw_pin
.
parent
.
init
=
RT_NULL
;
_hw_pin
.
parent
.
open
=
RT_NULL
;
_hw_pin
.
parent
.
close
=
RT_NULL
;
_hw_pin
.
parent
.
read
=
_pin_read
;
_hw_pin
.
parent
.
write
=
_pin_write
;
_hw_pin
.
parent
.
control
=
_pin_control
;
_hw_pin
.
ops
=
ops
;
_hw_pin
.
parent
.
user_data
=
user_data
;
/* register a character device */
rt_device_register
(
&
_hw_pin
.
parent
,
"pin"
,
RT_DEVICE_FLAG_RDWR
);
return
0
;
}
/* RT-Thread Hardware PIN APIs */
void
rt_pin_mode
(
rt_base_t
pin
,
rt_base_t
mode
)
{
_hw_pin
.
ops
->
pin_mode
(
&
_hw_pin
.
parent
,
pin
,
mode
);
}
FINSH_FUNCTION_EXPORT_ALIAS
(
rt_pin_mode
,
pinMode
,
set
hardware
pin
mode
);
void
rt_pin_write
(
rt_base_t
pin
,
rt_base_t
value
)
{
_hw_pin
.
ops
->
pin_write
(
&
_hw_pin
.
parent
,
pin
,
value
);
}
FINSH_FUNCTION_EXPORT_ALIAS
(
rt_pin_write
,
pinWrite
,
write
value
to
hardware
pin
);
int
rt_pin_read
(
rt_base_t
pin
)
{
return
_hw_pin
.
ops
->
pin_read
(
&
_hw_pin
.
parent
,
pin
);
}
FINSH_FUNCTION_EXPORT_ALIAS
(
rt_pin_read
,
pinRead
,
read
status
from
hardware
pin
);
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