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https://github.com/Rockbox/rockbox.git
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bbdada7690
add needs_cpu_boost field to usb_class_driver and manage boost state in usb_core, similar to needs_exclusive_storage. Change-Id: Ieb0cd7bedda5b24bb0d209d5ce907db30f4815db
72 lines
2.3 KiB
C
72 lines
2.3 KiB
C
/***************************************************************************
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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 by Frank Gevaerts
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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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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#include "string.h"
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#include "system.h"
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#include "usb_core.h"
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#include "usb_drv.h"
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#include "kernel.h"
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#include "usb_charging_only.h"
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#include "usb_class_driver.h"
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/*#define LOGF_ENABLE*/
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#include "logf.h"
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/* charging_only interface */
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static struct usb_interface_descriptor __attribute__((aligned(2)))
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interface_descriptor =
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{
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.bLength = sizeof(struct usb_interface_descriptor),
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.bDescriptorType = USB_DT_INTERFACE,
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.bInterfaceNumber = 0,
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.bAlternateSetting = 0,
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.bNumEndpoints = 0,
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.bInterfaceClass = USB_CLASS_VENDOR_SPEC,
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.bInterfaceSubClass = 0,
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.bInterfaceProtocol = 0,
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.iInterface = 0
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};
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static int usb_interface;
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static int usb_charging_only_set_first_interface(int interface)
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{
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usb_interface = interface;
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return interface + 1;
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}
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static int usb_charging_only_get_config_descriptor(unsigned char *dest,int max_packet_size)
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{
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(void)max_packet_size;
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unsigned char *orig_dest = dest;
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interface_descriptor.bInterfaceNumber=usb_interface;
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PACK_DATA(&dest, interface_descriptor);
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return (dest-orig_dest);
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}
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struct usb_class_driver usb_cdrv_charging_only = {
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.needs_exclusive_storage = false,
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.needs_cpu_boost = false,
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.config = 1,
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.set_first_interface = usb_charging_only_set_first_interface,
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.get_config_descriptor = usb_charging_only_get_config_descriptor,
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};
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