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cdfef483
编写于
6月 07, 2018
作者:
wuyangyong
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
[DeviceDrivers] add pwm driver framework.
上级
3592b368
变更
5
隐藏空白更改
内联
并排
Showing
5 changed file
with
228 addition
and
0 deletion
+228
-0
components/drivers/Kconfig
components/drivers/Kconfig
+4
-0
components/drivers/include/drivers/rt_drv_pwm.h
components/drivers/include/drivers/rt_drv_pwm.h
+54
-0
components/drivers/include/rtdevice.h
components/drivers/include/rtdevice.h
+4
-0
components/drivers/misc/SConscript
components/drivers/misc/SConscript
+3
-0
components/drivers/misc/_pwm.c
components/drivers/misc/_pwm.c
+163
-0
未找到文件。
components/drivers/Kconfig
浏览文件 @
cdfef483
...
...
@@ -66,6 +66,10 @@ config RT_USING_PIN
bool "Using generic GPIO device drivers"
default y
config RT_USING_PWM
bool "Using PWM device drivers"
default n
config RT_USING_MTD_NOR
bool "Using MTD Nor Flash device drivers"
default n
...
...
components/drivers/include/drivers/rt_drv_pwm.h
0 → 100644
浏览文件 @
cdfef483
/*
* File : rt_drv_pwm.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2018, 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
* 2018-05-07 aozima the first version
*/
#ifndef __DRV_PWM_H_INCLUDE__
#define __DRV_PWM_H_INCLUDE__
#define PWM_CMD_ENABLE (128 + 0)
#define PWM_CMD_DISABLE (128 + 1)
#define PWM_CMD_SET (128 + 2)
#define PWM_CMD_GET (128 + 3)
struct
rt_pwm_configuration
{
rt_uint32_t
channel
;
/* 0-n */
rt_uint32_t
period
;
/* unit:ns 1ns~4.29s:1Ghz~0.23hz */
rt_uint32_t
pulse
;
/* unit:ns (pulse<=period) */
};
struct
rt_device_pwm
;
struct
rt_pwm_ops
{
rt_err_t
(
*
control
)(
struct
rt_device_pwm
*
device
,
int
cmd
,
void
*
arg
);
};
struct
rt_device_pwm
{
struct
rt_device
parent
;
const
struct
rt_pwm_ops
*
ops
;
};
extern
rt_err_t
rt_device_pwm_register
(
struct
rt_device_pwm
*
device
,
const
char
*
name
,
const
struct
rt_pwm_ops
*
ops
,
const
void
*
user_data
);
#endif
/* __DRV_PWM_H_INCLUDE__ */
components/drivers/include/rtdevice.h
浏览文件 @
cdfef483
...
...
@@ -112,6 +112,10 @@ extern "C" {
#include "drivers/cputime.h"
#endif
#ifdef RT_USING_PWM
#include "drivers/rt_drv_pwm.h"
#endif
#ifdef __cplusplus
}
#endif
...
...
components/drivers/misc/SConscript
浏览文件 @
cdfef483
...
...
@@ -8,6 +8,9 @@ group = []
if
GetDepend
([
'RT_USING_PIN'
]):
src
=
src
+
[
'pin.c'
]
if
GetDepend
([
'RT_USING_PWM'
]):
src
=
src
+
[
'_pwm.c'
]
if
len
(
src
):
group
=
DefineGroup
(
'DeviceDrivers'
,
src
,
depend
=
[
''
],
CPPPATH
=
CPPPATH
)
...
...
components/drivers/misc/_pwm.c
0 → 100644
浏览文件 @
cdfef483
/*
* File : _pwm.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2018, 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
* 2018-05-07 aozima the first version
*/
#include <string.h>
#include <rtthread.h>
#include <rtdevice.h>
static
rt_err_t
_pwm_control
(
rt_device_t
dev
,
int
cmd
,
void
*
args
)
{
rt_err_t
result
=
RT_EOK
;
struct
rt_device_pwm
*
pwm
=
(
struct
rt_device_pwm
*
)
dev
;
if
(
pwm
->
ops
->
control
)
{
result
=
pwm
->
ops
->
control
(
pwm
,
cmd
,
args
);
}
return
result
;
}
/*
pos: channel
void *buffer: rt_uint32_t pulse[size]
size : number of pulse, only set to sizeof(rt_uint32_t).
*/
static
rt_size_t
_pwm_read
(
rt_device_t
dev
,
rt_off_t
pos
,
void
*
buffer
,
rt_size_t
size
)
{
rt_err_t
result
=
RT_EOK
;
struct
rt_device_pwm
*
pwm
=
(
struct
rt_device_pwm
*
)
dev
;
rt_uint32_t
*
pulse
=
(
rt_uint32_t
*
)
buffer
;
struct
rt_pwm_configuration
configuration
=
{
0
};
configuration
.
channel
=
pos
;
if
(
pwm
->
ops
->
control
)
{
result
=
pwm
->
ops
->
control
(
pwm
,
PWM_CMD_GET
,
&
configuration
);
if
(
result
!=
RT_EOK
)
{
return
0
;
}
*
pulse
=
configuration
.
pulse
;
}
return
size
;
}
/*
pos: channel
void *buffer: rt_uint32_t pulse[size]
size : number of pulse, only set to sizeof(rt_uint32_t).
*/
static
rt_size_t
_pwm_write
(
rt_device_t
dev
,
rt_off_t
pos
,
const
void
*
buffer
,
rt_size_t
size
)
{
rt_err_t
result
=
RT_EOK
;
struct
rt_device_pwm
*
pwm
=
(
struct
rt_device_pwm
*
)
dev
;
rt_uint32_t
*
pulse
=
(
rt_uint32_t
*
)
buffer
;
struct
rt_pwm_configuration
configuration
=
{
0
};
configuration
.
channel
=
pos
;
if
(
pwm
->
ops
->
control
)
{
result
=
pwm
->
ops
->
control
(
pwm
,
PWM_CMD_GET
,
&
configuration
);
if
(
result
!=
RT_EOK
)
{
return
0
;
}
configuration
.
pulse
=
*
pulse
;
result
=
pwm
->
ops
->
control
(
pwm
,
PWM_CMD_SET
,
&
configuration
);
if
(
result
!=
RT_EOK
)
{
return
0
;
}
}
return
size
;
}
rt_err_t
rt_device_pwm_register
(
struct
rt_device_pwm
*
device
,
const
char
*
name
,
const
struct
rt_pwm_ops
*
ops
,
const
void
*
user_data
)
{
rt_err_t
result
=
RT_EOK
;
memset
(
device
,
0
,
sizeof
(
struct
rt_device_pwm
));
device
->
parent
.
type
=
RT_Device_Class_Miscellaneous
;
device
->
parent
.
init
=
RT_NULL
;
device
->
parent
.
open
=
RT_NULL
;
device
->
parent
.
close
=
RT_NULL
;
device
->
parent
.
read
=
_pwm_read
;
device
->
parent
.
write
=
_pwm_write
;
device
->
parent
.
control
=
_pwm_control
;
device
->
ops
=
ops
;
device
->
parent
.
user_data
=
(
void
*
)
user_data
;
result
=
rt_device_register
(
&
device
->
parent
,
name
,
RT_DEVICE_FLAG_RDWR
);
return
result
;
}
rt_err_t
rt_pwm_enable
(
int
channel
)
{
rt_err_t
result
=
RT_EOK
;
struct
rt_device
*
device
=
rt_device_find
(
"pwm"
);
struct
rt_pwm_configuration
configuration
=
{
0
};
if
(
!
device
)
{
return
-
RT_EIO
;
}
configuration
.
channel
=
channel
;
result
=
rt_device_control
(
device
,
PWM_CMD_ENABLE
,
&
configuration
);
return
result
;
}
rt_err_t
rt_pwm_set
(
int
channel
,
rt_uint32_t
period
,
rt_uint32_t
pulse
)
{
rt_err_t
result
=
RT_EOK
;
struct
rt_device
*
pwm
=
rt_device_find
(
"pwm"
);
if
(
!
pwm
)
{
return
-
RT_EIO
;
}
return
result
;
}
#ifdef finsh
#endif
/**/
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