60 lines
2.3 KiB
C
60 lines
2.3 KiB
C
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id: $
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*
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* Copyright (C) 2008 Frank Gevaerts
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef _USB_CLASS_DRIVER_H_
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#define _USB_CLASS_DRIVER_H_
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/* Common api, implemented by all class drivers */
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struct usb_class_driver {
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bool enabled;
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bool needs_exclusive_ata;
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int usb_endpoint;
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int usb_interface;
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/* Asks the driver to put the interface descriptor and all other
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needed descriptor for this driver at dest, for the given settings.
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Returns the number of bytes taken by these descriptors. */
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int (*get_config_descriptor)(unsigned char *dest,
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int max_packet_size, int interface_number, int endpoint);
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/* Tells the driver that a usb connection has been set up and is now
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ready to use. */
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void (*init_connection)(int interface,int endpoint);
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/* Initialises the driver. This can be called multiple times,
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and should not perform any action that can disturb other threads
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(like getting the audio buffer) */
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void (*init)(void);
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/* Tells the driver that the usb connection is no longer active */
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void (*disconnect)(void);
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/* Tells the driver that a usb transfer has been completed. Note that "in"
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is relative to the host */
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void (*transfer_complete)(bool in, int status, int length);
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/* Tells the driver that a control request has come in. If the driver is
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able to handle it, it should ack the request, and return true. Otherwise
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it should return false. */
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bool (*control_request)(struct usb_ctrlrequest* req);
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};
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#endif
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