peripheral.c 文件参考

玄武设备栈：I2C：外设 更多...

#include <xwcd/ds/standard.h>
#include <xwcd/ds/i2c/peripheral.h>

peripheral.c 的引用(Include)关系图:

浏览源代码.

函数
static xwer_t	xwds_i2cp_vop_probe (struct xwds_i2cp *i2cp)
	XWDS VOP：探测I2C外设
static xwer_t	xwds_i2cp_vop_remove (struct xwds_i2cp *i2cp)
	XWDS VOP：移除I2C外设
static xwer_t	xwds_i2cp_vop_start (struct xwds_i2cp *i2cp)
	XWDS VOP：启动I2C外设
static xwer_t	xwds_i2cp_vop_stop (struct xwds_i2cp *i2cp)
	XWDS VOP：停止I2C外设
static xwer_t	xwds_i2cp_vop_suspend (struct xwds_i2cp *i2cp)
	XWDS VOP：暂停I2C外设
static xwer_t	xwds_i2cp_vop_resume (struct xwds_i2cp *i2cp)
	XWDS VOP：继续I2C外设
void	xwds_i2cp_construct (struct xwds_i2cp *i2cp)
	XWDS API：I2C外设的构造函数
void	xwds_i2cp_destruct (struct xwds_i2cp *i2cp)
	XWDS API：I2C外设的构造函数
xwer_t	xwds_i2cp_grab (struct xwds_i2cp *i2cp)
	XWDS API：增加对象的引用计数
xwer_t	xwds_i2cp_put (struct xwds_i2cp *i2cp)
	XWDS API：减少对象的引用计数

变量
const struct xwds_virtual_operation	xwds_i2cp_vop

详细描述

玄武设备栈：I2C：外设

作者

• 隐星魂 (Roy Sun) xwos@.nosp@m.xwos.nosp@m..tech

版权所有

• Copyright © 2015 xwos.tech, All Rights Reserved.

  ‍Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0
  

  Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

在文件 peripheral.c 中定义.

函数说明

xwds_i2cp_vop_probe()

static xwer_t xwds_i2cp_vop_probe ( struct xwds_i2cp *  i2cp )

static

XWDS VOP：探测I2C外设

参数

[in]

i2cp

I2C外设对象指针

<No error

在文件 peripheral.c 第 87 行定义.

{
        xwer_t rc;
 
        rc = xwds_device_vop_probe(&i2cp->dev);
        if (rc < 0) {
                goto err_dev_vop_probe;
        }
        return XWOK;
 
err_dev_vop_probe:
        return rc;
}

函数调用图:

xwds_i2cp_vop_remove()

static xwer_t xwds_i2cp_vop_remove ( struct xwds_i2cp *  i2cp )

static

XWDS VOP：移除I2C外设

参数

[in]

i2cp

I2C外设对象指针

<No error

在文件 peripheral.c 第 106 行定义.

{
        xwer_t rc;
 
        XWDS_VALIDATE(i2cp->bus, "nullptr", -EHOSTUNREACH);
 
        rc = xwds_device_vop_remove(&i2cp->dev);
        if (rc < 0) {
                goto err_dev_vop_remove;
        }
        return XWOK;
 
err_dev_vop_remove:
        return rc;
}

函数调用图:

xwds_i2cp_vop_resume()

static xwer_t xwds_i2cp_vop_resume ( struct xwds_i2cp *  i2cp )

static

XWDS VOP：继续I2C外设

参数

[in]

i2cp

I2C外设对象指针

<No error

在文件 peripheral.c 第 202 行定义.

{
        xwer_t rc;
 
        if (i2cp->bus) {
                rc = xwds_i2cm_grab(i2cp->bus);
        } else {
                rc = -EHOSTUNREACH;
        }
        if (rc < 0) {
                goto err_i2cm_grab;
        }
        rc = xwds_device_vop_resume(&i2cp->dev);
        if (rc < 0) {
                goto err_dev_vop_resume;
        }
        return XWOK;
 
err_dev_vop_resume:
        xwds_i2cm_put(i2cp->bus);
err_i2cm_grab:
        return rc;
}

函数调用图:

xwds_i2cp_vop_start()

static xwer_t xwds_i2cp_vop_start ( struct xwds_i2cp *  i2cp )

static

XWDS VOP：启动I2C外设

参数

[in]

i2cp

I2C外设对象指针

<No error

在文件 peripheral.c 第 127 行定义.

{
        xwer_t rc;
 
        if (i2cp->bus) {
                rc = xwds_i2cm_grab(i2cp->bus);
        } else {
                rc = -EHOSTUNREACH;
        }
        if (rc < 0) {
                goto err_i2cm_grab;
        }
        rc = xwds_device_vop_start(&i2cp->dev);
        if (rc < 0) {
                goto err_dev_vop_start;
        }
        return XWOK;
 
err_dev_vop_start:
        xwds_i2cm_put(i2cp->bus);
err_i2cm_grab:
        return rc;
}

函数调用图:

xwds_i2cp_vop_stop()

static xwer_t xwds_i2cp_vop_stop ( struct xwds_i2cp *  i2cp )

static

XWDS VOP：停止I2C外设

参数

[in]

i2cp

I2C外设对象指针

<No error

在文件 peripheral.c 第 156 行定义.

{
        xwer_t rc;
 
        XWDS_VALIDATE(i2cp->bus, "nullptr", -EHOSTUNREACH);
 
        rc = xwds_device_vop_stop(&i2cp->dev);
        if (rc < 0) {
                goto err_dev_vop_stop;
        }
        xwds_i2cm_put(i2cp->bus);
        return XWOK;
 
err_dev_vop_stop:
        return rc;
}

函数调用图:

xwds_i2cp_vop_suspend()

static xwer_t xwds_i2cp_vop_suspend ( struct xwds_i2cp *  i2cp )

static

XWDS VOP：暂停I2C外设

参数

[in]

i2cp

I2C外设对象指针

<No error

在文件 peripheral.c 第 180 行定义.

{
        xwer_t rc;
 
        XWDS_VALIDATE(i2cp->bus, "nullptr", -EHOSTUNREACH);
 
        rc = xwds_device_vop_suspend(&i2cp->dev);
        if (rc < 0) {
                goto err_dev_vop_suspend;
        }
        xwds_i2cm_put(i2cp->bus);
        return XWOK;
 
err_dev_vop_suspend:
        return rc;
}

函数调用图:

变量说明

xwds_i2cp_vop

const struct xwds_virtual_operation xwds_i2cp_vop

初始值:

= {
        .probe = (void *)xwds_i2cp_vop_probe,
        .remove = (void *)xwds_i2cp_vop_remove,
        .start = (void *)xwds_i2cp_vop_start,
        .stop = (void *)xwds_i2cp_vop_stop,
 
        .suspend = (void *)xwds_i2cp_vop_suspend,
        .resume = (void *)xwds_i2cp_vop_resume,
 
}

在文件 peripheral.c 第 44 行定义.