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nuxxt: add open and close callback functions for the mouse.

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Signed-off-by: liuhongchao <liuhongchao@xiaomi.com>
This commit is contained in:
liuhongchao 2024-11-05 10:55:46 +08:00
parent 54a46b07c7
commit e2fcd5dbee
2 changed files with 51 additions and 0 deletions
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12
drivers/input/mouse_upper.c
View file

@ -103,6 +103,7 @@ static int mouse_open(FAR struct file *filep)
FAR struct mouse_openpriv_s *openpriv;
FAR struct inode *inode = filep->f_inode;
FAR struct mouse_upperhalf_s *upper = inode->i_private;
FAR struct mouse_lowerhalf_s *lower = upper->lower;
int ret;
ret = nxmutex_lock(&upper->lock);
@ -131,6 +132,11 @@ static int mouse_open(FAR struct file *filep)
nxmutex_init(&openpriv->lock);
list_add_tail(&upper->head, &openpriv->node);
if (lower->open && list_is_singular(&openpriv->node))
{
ret = lower->open(lower);
}
/* Save the buffer node pointer so that it can be used directly
* in the read operation.
*/
@ -149,6 +155,7 @@ static int mouse_close(FAR struct file *filep)
FAR struct mouse_openpriv_s *openpriv = filep->f_priv;
FAR struct inode *inode = filep->f_inode;
FAR struct mouse_upperhalf_s *upper = inode->i_private;
FAR struct mouse_lowerhalf_s *lower = upper->lower;
int ret;
ret = nxmutex_lock(&upper->lock);
@ -157,6 +164,11 @@ static int mouse_close(FAR struct file *filep)
return ret;
}
if (lower->close && list_is_singular(&openpriv->node))
{
ret = lower->close(lower);
}
list_delete(&openpriv->node);
circbuf_uninit(&openpriv->circbuf);
nxsem_destroy(&openpriv->waitsem);

39
include/nuttx/input/mouse.h
View file

@ -143,6 +143,45 @@ struct mouse_lowerhalf_s
CODE int (*control)(FAR struct mouse_lowerhalf_s *lower,
int cmd, unsigned long arg);
/**************************************************************************
* Name: open
*
* Description:
* This function pointer is used to open a connection to the mouse driver
* instance. It initializes the mouse and prepares it for subsequent
* interactions with the user. This function typically sets up the state
* of the driver and allocates any necessary resources.
*
* Input Parameters:
* lower - A pointer to the instance of the lower half mouse driver.
* filep - A pointer to the file structure representing the user.
*
* Returned Value:
* It returns zero (OK) on success; a negative errno value on failure.
**************************************************************************/
CODE int (*open)(FAR struct mouse_lowerhalf_s *lower);
/**************************************************************************
* Name: close
*
* Description:
* This function pointer is used to close the connection to the mouse
* driver instance. It performs any necessary cleanup operations, such as
* releasing resources and resetting the state of the mouse driver,
* before ending theinteraction with the user.
*
* Input Parameters:
* lower - A pointer to the instance of the lower half mouse driver.
* filep - A pointer to the file structure representing the user closing
* the mouse connection.
*
* Returned Value:
* Returns zero (OK) on success; a negative errno value on failure.
**************************************************************************/
CODE int (*close)(FAR struct mouse_lowerhalf_s *lower);
};
/****************************************************************************