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825cdefe
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前往新版Gitcode,体验更适合开发者的 AI 搜索 >>
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825cdefe
编写于
4月 14, 2023
作者:
L
linshire
提交者:
GitHub
4月 13, 2023
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电子邮件补丁
差异文件
[bsp][lpc55s69]add softi2c (#7221)
上级
a08e930e
变更
5
隐藏空白更改
内联
并排
Showing
5 changed file
with
327 addition
and
0 deletion
+327
-0
bsp/lpc55sxx/Libraries/drivers/SConscript
bsp/lpc55sxx/Libraries/drivers/SConscript
+3
-0
bsp/lpc55sxx/Libraries/drivers/drv_soft_i2c.c
bsp/lpc55sxx/Libraries/drivers/drv_soft_i2c.c
+213
-0
bsp/lpc55sxx/Libraries/drivers/drv_soft_i2c.h
bsp/lpc55sxx/Libraries/drivers/drv_soft_i2c.h
+52
-0
bsp/lpc55sxx/lpc55s69_nxp_evk/board/Kconfig
bsp/lpc55sxx/lpc55s69_nxp_evk/board/Kconfig
+42
-0
bsp/lpc55sxx/tools/sdk_dist.py
bsp/lpc55sxx/tools/sdk_dist.py
+17
-0
未找到文件。
bsp/lpc55sxx/Libraries/drivers/SConscript
浏览文件 @
825cdefe
...
...
@@ -49,6 +49,9 @@ if GetDepend('BSP_USING_I2S'):
if
GetDepend
(
'BSP_USING_WM8904'
):
src
+=
[
'drv_sound_wm8904.c'
]
if
GetDepend
(
'BSP_USING_SOFT_I2C'
):
src
+=
[
'drv_soft_i2c.c'
]
path
=
[
cwd
,
cwd
+
'/config'
]
group
=
DefineGroup
(
'Drivers'
,
src
,
depend
=
[
''
],
CPPPATH
=
path
)
...
...
bsp/lpc55sxx/Libraries/drivers/drv_soft_i2c.c
0 → 100644
浏览文件 @
825cdefe
/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2023-04-11 linshire the first version
*/
#include <board.h>
#include "drv_soft_i2c.h"
#ifdef RT_USING_I2C
#define LOG_TAG "drv.i2c"
#include <drv_log.h>
#if !defined(BSP_USING_I2C1) && !defined(BSP_USING_I2C2) && !defined(BSP_USING_I2C3) && !defined(BSP_USING_I2C4)
#error "Please define at least one BSP_USING_I2Cx"
/* this driver can be disabled at menuconfig -> RT-Thread Components -> Device Drivers */
#endif
static
const
struct
lpc55s69_soft_i2c_config
soft_i2c_config
[]
=
{
#ifdef BSP_USING_SOFT_I2C1
SOFT_I2C1_BUS_CONFIG
,
#endif
#ifdef BSP_USING_SOFT_I2C2
SOFT_I2C2_BUS_CONFIG
,
#endif
};
static
struct
lpc55s69_i2c
i2c_obj
[
sizeof
(
soft_i2c_config
)
/
sizeof
(
soft_i2c_config
[
0
])];
/**
* This function initializes the i2c pin.
*
* @param lpc55s69 i2c dirver class.
*/
static
void
lpc55s69_i2c_gpio_init
(
struct
lpc55s69_i2c
*
i2c
)
{
struct
lpc55s69_soft_i2c_config
*
cfg
=
(
struct
lpc55s69_soft_i2c_config
*
)
i2c
->
ops
.
data
;
rt_pin_mode
(
cfg
->
scl
,
PIN_MODE_OUTPUT_OD
);
rt_pin_mode
(
cfg
->
sda
,
PIN_MODE_OUTPUT_OD
);
rt_pin_write
(
cfg
->
scl
,
PIN_HIGH
);
rt_pin_write
(
cfg
->
sda
,
PIN_HIGH
);
}
/**
* This function sets the sda pin.
*
* @param lpc55s69 config class.
* @param The sda pin state.
*/
static
void
lpc55s69_set_sda
(
void
*
data
,
rt_int32_t
state
)
{
struct
lpc55s69_soft_i2c_config
*
cfg
=
(
struct
lpc55s69_soft_i2c_config
*
)
data
;
if
(
state
)
{
rt_pin_write
(
cfg
->
sda
,
PIN_HIGH
);
}
else
{
rt_pin_write
(
cfg
->
sda
,
PIN_LOW
);
}
}
/**
* This function sets the scl pin.
*
* @param lpc55s69 config class.
* @param The scl pin state.
*/
static
void
lpc55s69_set_scl
(
void
*
data
,
rt_int32_t
state
)
{
struct
lpc55s69_soft_i2c_config
*
cfg
=
(
struct
lpc55s69_soft_i2c_config
*
)
data
;
if
(
state
)
{
rt_pin_write
(
cfg
->
scl
,
PIN_HIGH
);
}
else
{
rt_pin_write
(
cfg
->
scl
,
PIN_LOW
);
}
}
/**
* This function gets the sda pin state.
*
* @param The sda pin state.
*/
static
rt_int32_t
lpc55s69_get_sda
(
void
*
data
)
{
struct
lpc55s69_soft_i2c_config
*
cfg
=
(
struct
lpc55s69_soft_i2c_config
*
)
data
;
return
rt_pin_read
(
cfg
->
sda
);
}
/**
* This function gets the scl pin state.
*
* @param The scl pin state.
*/
static
rt_int32_t
lpc55s69_get_scl
(
void
*
data
)
{
struct
lpc55s69_soft_i2c_config
*
cfg
=
(
struct
lpc55s69_soft_i2c_config
*
)
data
;
return
rt_pin_read
(
cfg
->
scl
);
}
/**
* The time delay function.
*
* @param microseconds.
*/
static
void
lpc55s69_udelay
(
rt_uint32_t
us
)
{
rt_uint32_t
ticks
;
rt_uint32_t
told
,
tnow
,
tcnt
=
0
;
rt_uint32_t
reload
=
SysTick
->
LOAD
;
ticks
=
us
*
reload
/
(
1000000
/
RT_TICK_PER_SECOND
);
told
=
SysTick
->
VAL
;
while
(
1
)
{
tnow
=
SysTick
->
VAL
;
if
(
tnow
!=
told
)
{
if
(
tnow
<
told
)
{
tcnt
+=
told
-
tnow
;
}
else
{
tcnt
+=
reload
-
tnow
+
told
;
}
told
=
tnow
;
if
(
tcnt
>=
ticks
)
{
break
;
}
}
}
}
static
const
struct
rt_i2c_bit_ops
lpc55s69_bit_ops_default
=
{
.
data
=
RT_NULL
,
.
set_sda
=
lpc55s69_set_sda
,
.
set_scl
=
lpc55s69_set_scl
,
.
get_sda
=
lpc55s69_get_sda
,
.
get_scl
=
lpc55s69_get_scl
,
.
udelay
=
lpc55s69_udelay
,
.
delay_us
=
1
,
.
timeout
=
100
};
/**
* if i2c is locked, this function will unlock it
*
* @param lpc55s69 config class
*
* @return RT_EOK indicates successful unlock.
*/
static
rt_err_t
lpc55s69_i2c_bus_unlock
(
const
struct
lpc55s69_soft_i2c_config
*
cfg
)
{
rt_int32_t
i
=
0
;
if
(
PIN_LOW
==
rt_pin_read
(
cfg
->
sda
))
{
while
(
i
++
<
9
)
{
rt_pin_write
(
cfg
->
scl
,
PIN_HIGH
);
lpc55s69_udelay
(
100
);
rt_pin_write
(
cfg
->
scl
,
PIN_LOW
);
lpc55s69_udelay
(
100
);
}
}
if
(
PIN_LOW
==
rt_pin_read
(
cfg
->
sda
))
{
return
-
RT_ERROR
;
}
return
RT_EOK
;
}
/* I2C initialization function */
int
rt_hw_i2c_init
(
void
)
{
rt_err_t
result
;
for
(
rt_size_t
i
=
0
;
i
<
sizeof
(
i2c_obj
)
/
sizeof
(
struct
lpc55s69_i2c
);
i
++
)
{
i2c_obj
[
i
].
ops
=
lpc55s69_bit_ops_default
;
i2c_obj
[
i
].
ops
.
data
=
(
void
*
)
&
soft_i2c_config
[
i
];
i2c_obj
[
i
].
i2c2_bus
.
priv
=
&
i2c_obj
[
i
].
ops
;
lpc55s69_i2c_gpio_init
(
&
i2c_obj
[
i
]);
result
=
rt_i2c_bit_add_bus
(
&
i2c_obj
[
i
].
i2c2_bus
,
soft_i2c_config
[
i
].
bus_name
);
RT_ASSERT
(
result
==
RT_EOK
);
lpc55s69_i2c_bus_unlock
(
&
soft_i2c_config
[
i
]);
LOG_D
(
"software simulation %s init done, pin scl: %d, pin sda %d"
,
soft_i2c_config
[
i
].
bus_name
,
soft_i2c_config
[
i
].
scl
,
soft_i2c_config
[
i
].
sda
);
}
return
RT_EOK
;
}
INIT_BOARD_EXPORT
(
rt_hw_i2c_init
);
#endif
/* RT_USING_I2C */
bsp/lpc55sxx/Libraries/drivers/drv_soft_i2c.h
0 → 100644
浏览文件 @
825cdefe
/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2023-04-11 linshrie first version
*/
#ifndef __DRV_I2C__
#define __DRV_I2C__
#include <rtthread.h>
#include <rthw.h>
#include <rtdevice.h>
/* lpc55s69 config class */
struct
lpc55s69_soft_i2c_config
{
rt_uint8_t
scl
;
rt_uint8_t
sda
;
const
char
*
bus_name
;
};
/* lpc55s69 i2c dirver class */
struct
lpc55s69_i2c
{
struct
rt_i2c_bit_ops
ops
;
struct
rt_i2c_bus_device
i2c2_bus
;
};
#ifdef BSP_USING_SOFT_I2C1
#define SOFT_I2C1_BUS_CONFIG \
{ \
.scl = BSP_SOFT_I2C1_SCL_PIN, \
.sda = BSP_SOFT_I2C1_SCL_PIN, \
.bus_name = "i2c1", \
}
#endif
#ifdef BSP_USING_SOFT_I2C2
#define SOFT_I2C2_BUS_CONFIG \
{ \
.scl = BSP_SOFT_I2C2_SCL_PIN, \
.sda = BSP_SOFT_I2C2_SCL_PIN, \
.bus_name = "i2c2", \
}
#endif
/*BSP_USING_I2C2*/
int
rt_hw_i2c_init
(
void
);
#endif
bsp/lpc55sxx/lpc55s69_nxp_evk/board/Kconfig
浏览文件 @
825cdefe
...
...
@@ -116,6 +116,48 @@ menu "On-chip Peripheral Drivers"
endchoice
endif
endif
menuconfig BSP_USING_SOFT_I2C
bool "Enable I2C Bus"
select RT_USING_I2C
select RT_USING_I2C_BITOPS
select RT_USING_PIN
default n
if BSP_USING_SOFT_I2C
config BSP_USING_SOFT_I2C1
bool "Enable I2C1 Bus (software simulation)"
default n
if BSP_USING_SOFT_I2C1
comment "Notice: PB10 --> 26; PB11 --> 27"
config BSP_SOFT_I2C1_SCL_PIN
int "i2c1 SCL pin number"
range 0 79
default 26
config BSP_SOFT_I2C1_SDA_PIN
int "i2c1 SDA pin number"
range 0 79
default 27
endif
config BSP_USING_SOFT_I2C2
bool "Enable I2C2 Bus (software simulation)"
default n
if BSP_USING_SOFT_I2C2
comment "Notice: PC1 --> 33; PC0 --> 32"
config BSP_SOFT_I2C2_SCL_PIN
int "i2c2 SCL pin number"
range 0 79
default 32
config BSP_SOFT_I2C2_SDA_PIN
int "i2c2 SDA pin number"
range 0 79
default 33
endif
endif
menuconfig BSP_USING_SPI
config BSP_USING_SPI
...
...
bsp/lpc55sxx/tools/sdk_dist.py
浏览文件 @
825cdefe
...
...
@@ -18,3 +18,20 @@ def dist_do_building(BSP_ROOT, dist_dir):
print
(
"=> copy bsp library"
)
bsp_copy_files
(
os
.
path
.
join
(
library_path
,
rtconfig
.
BSP_LIBRARY_TYPE
),
os
.
path
.
join
(
library_dir
,
rtconfig
.
BSP_LIBRARY_TYPE
))
shutil
.
copyfile
(
os
.
path
.
join
(
library_path
,
'Kconfig'
),
os
.
path
.
join
(
library_dir
,
'Kconfig'
))
# change RTT_ROOT in Kconfig
if
not
os
.
path
.
isfile
(
os
.
path
.
join
(
dist_dir
,
'Kconfig'
)):
return
with
open
(
os
.
path
.
join
(
dist_dir
,
'Kconfig'
),
'r'
)
as
f
:
data
=
f
.
readlines
()
with
open
(
os
.
path
.
join
(
dist_dir
,
'Kconfig'
),
'w'
)
as
f
:
found
=
0
for
line
in
data
:
if
line
.
find
(
'RTT_ROOT'
)
!=
-
1
:
found
=
1
if
line
.
find
(
'../Libraries'
)
!=
-
1
and
found
:
position
=
line
.
find
(
'../Libraries'
)
line
=
line
[
0
:
position
]
+
'Libraries/Kconfig"
\n
'
found
=
0
f
.
write
(
line
)
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