提交 87feb56e 编写于 作者: A Annie_wang

update docs

Signed-off-by: NAnnie_wang <annie.wangli@huawei.com>
上级 49669a01
master OpenHarmony-3.2-Beta2 OpenHarmony-3.2-Beta3 OpenHarmony-3.2-Beta4 OpenHarmony-3.2-Beta5 OpenHarmony-3.2-Release OpenHarmony-4.0-Beta1 OpenHarmony-4.0-Beta2 TR4270 bak_OpenHarmony-4.0-Beta1_20230529 docs-modify feature_IDL_20220811 monthly_20220816 monthly_20221018 monthly_20230815 revert-merge-17651-master revert-merge-19334-OpenHarmony-4.0-Beta1 revert-merge-19586-master revert-merge-20613-master revert-merge-21757-OpenHarmony-4.0-Beta2 revert-merge-21765-OpenHarmony-4.0-Beta2 revert-merge-23766-master revert-merge-5580-master weekly_20220621 weekly_20220628 weekly_20220705 weekly_20220712 weekly_20220719 weekly_20220726 weekly_20220802 weekly_20220809 weekly_20220816 weekly_20220823 weekly_20220830 weekly_20220906 weekly_20220913 weekly_20220920 weekly_20220927 weekly_20221004 weekly_20221011 weekly_20221018 weekly_20221025 weekly_20221101 weekly_20221108 weekly_20221115 weekly_20221122 weekly_20221129 weekly_20221206 weekly_20221213 weekly_20221220 weekly_20221227 weekly_20230103 weekly_20230110 weekly_20230117 weekly_20230124 weekly_20230131 weekly_20230207 weekly_20230214 weekly_20230221 weekly_20230228 weekly_20230307 weekly_20230314 weekly_20230321 weekly_20230328 weekly_20230404 weekly_20230411 weekly_20230418 weekly_20230425 weekly_20230502 weekly_20230509 weekly_20230516 weekly_20230523 weekly_20230530 weekly_20230606 weekly_20230613 weekly_20230619 weekly_20230626 weekly_20230627 weekly_20230704 weekly_20230712 weekly_20230725 weekly_20230801 weekly_20230808 weekly_20230815 weekly_20230822 weekly_20230829 weekly_20230905 OpenHarmony-v4.0-Beta2 OpenHarmony-v4.0-Beta1 OpenHarmony-v3.2.3-Release OpenHarmony-v3.2.2-Release OpenHarmony-v3.2.1-Release OpenHarmony-v3.2-Release OpenHarmony-v3.2-Beta5 OpenHarmony-v3.2-Beta4 OpenHarmony-v3.2-Beta3 OpenHarmony-v3.2-Beta2
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......@@ -11,9 +11,9 @@ The GPIO APIs define a set of standard functions for performing operations on GP
- Reading and writing the pin level, which can be low or high
- Setting the interrupt service routine (ISR) function and interrupt trigger mode for a pin
- Setting an interrupt service routine (ISR) function and interrupt trigger mode for a pin
- Enabling or disabling interrupts for a pin
- Enabling or disabling pin interrupts
## Available APIs
......@@ -37,7 +37,7 @@ The GPIO APIs define a set of standard functions for performing operations on GP
The figure below shows the general GPIO development process. In the APIs, a GPIO pin is specified by the pin number.
**Figure 1** Using GPIO driver APIs
**Figure 1** Using GPIO driver APIs
![](figures/using-GPIO-process.png "using-gpio-process.png")
......@@ -70,9 +70,7 @@ The method for determining the GPIO pin number varies depending on the GPIO cont
- Set the GPIO pin direction.
Before performing read/write operations on a GPIO pin, call **GpioSetDir()** to set the pin direction.
```c
int32_t GpioSetDir(uint16_t gpio, uint16_t dir);
```
**Table 2** Description of GpioSetDir
......@@ -88,9 +86,7 @@ The method for determining the GPIO pin number varies depending on the GPIO cont
Call **GpioRead()** to read the level of a GPIO pin.
```c
int32_t GpioRead(uint16_t gpio, uint16_t *val);
```
int32_t GpioRead(uint16_t gpio, uint16_t \*val);
**Table 3** Description of GpioRead
......@@ -104,10 +100,8 @@ The method for determining the GPIO pin number varies depending on the GPIO cont
Call **GpioWrite()** to write the level for a GPIO pin.
```c
int32_t GpioWrite(uint16_t gpio, uint16_t val);
```
**Table 4** Description of GpioWrite
| **Parameter**| **Description**|
......@@ -120,7 +114,7 @@ The method for determining the GPIO pin number varies depending on the GPIO cont
Sample code:
```
int32_t ret;
uint16_t val;
......@@ -150,10 +144,8 @@ The method for determining the GPIO pin number varies depending on the GPIO cont
Call **GpioSetIrq()** to set the ISR function for a GPIO pin.
```c
int32_t GpioSetIrq(uint16_t gpio, uint16_t mode, GpioIrqFunc func, void *arg);
```
int32_t GpioSetIrq(uint16_t gpio, uint16_t mode, GpioIrqFunc func, void \*arg);
**Table 5** Description of GpioSetIrq
| **Parameter**| **Description**|
......@@ -171,9 +163,7 @@ The method for determining the GPIO pin number varies depending on the GPIO cont
If the ISR function is no longer required, call **GpioUnsetIrq()** to cancel it.
```c
int32_t GpioUnsetIrq(uint16_t gpio, void *arg);
```
int32_t GpioUnsetIrq(uint16_t gpio, void \*arg);
**Table 6** Description of GpioUnsetIrq
......@@ -187,9 +177,7 @@ The method for determining the GPIO pin number varies depending on the GPIO cont
After the ISR function is set, call **GpioEnableIrq()** to enable interrupts for the GPIO pin.
```c
int32_t GpioEnableIrq(uint16_t gpio);
```
**Table 7** Description of GpioEnableIrq
......@@ -205,9 +193,7 @@ The method for determining the GPIO pin number varies depending on the GPIO cont
You can call **GpioDisableIrq** to disable interrupts for the pin.
```c
int32_t GpioDisableIrq(uint16_t gpio);
```
**Table 8** Description of GpioDisableIrq
......@@ -220,7 +206,7 @@ The method for determining the GPIO pin number varies depending on the GPIO cont
Sample code:
```
/* Set the ISR function. */
int32_t MyCallBackFunc(uint16_t gpio, void *data)
......
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