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handle standard request to interface that defined in class

This commit is contained in:
heyuanjie87 2013-01-17 12:23:06 +08:00
parent 9721603b72
commit a3bde3c4a3
1 changed files with 40 additions and 3 deletions
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37
components/drivers/usb/usbdevice/core/core.c
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@ -355,6 +355,38 @@ static rt_err_t _set_address(struct udevice* device, ureq_t setup)
return RT_EOK;
}
/**
* This function will handle standard request to
* interface that defined in class-specifics
*
* @param device the usb device object.
* @param setup the setup request.
*
* @return RT_EOK on successful.
*/
static rt_err_t _request_interface(struct udevice* device, ureq_t setup)
{
uintf_t intf;
uclass_t cls;
rt_err_t ret;
/* parameter check */
RT_ASSERT(device != RT_NULL);
RT_ASSERT(setup != RT_NULL);
RT_DEBUG_LOG(RT_DEBUG_USB, ("_request_interface\n"));
intf = rt_usbd_find_interface(device, setup->index & 0xFF, &cls);
if (intf != RT_NULL)
{
ret = intf->handler(device, cls, setup);
}
else
ret = -RT_ERROR;
return ret;
}
/**
* This function will handle standard request.
*
@ -419,8 +451,13 @@ static rt_err_t _standard_request(struct udevice* device, ureq_t setup)
_set_interface(device, setup);
break;
default:
if (_request_interface(device, setup) != RT_EOK)
{
rt_kprintf("unknown interface request\n");
dcd_ep_stall(device->dcd, 0);
return - RT_ERROR;
}
else
break;
}
break;