092b6d1e88
The USB descriptor sizes are specified as 16-bit for idVendor / idProduct, and 8-bit for bInterfaceClass / bInterfaceSubClass / bInterfaceProtocol. Doing so we reduce the usbredir_raw_serial_ids[] and usbredir_ftdi_serial_ids[] arrays from 16KiB to 6KiB (size reported on x86_64 host, building with --extra-cflags=-Os). Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
55 lines
1.8 KiB
C
55 lines
1.8 KiB
C
/*
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* USB quirk handling
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*
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* Copyright (c) 2012 Red Hat, Inc.
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*
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* Red Hat Authors:
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* Hans de Goede <hdegoede@redhat.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include "qemu/osdep.h"
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#include "quirks.h"
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#include "hw/usb.h"
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static bool usb_id_match(const struct usb_device_id *ids,
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uint16_t vendor_id, uint16_t product_id,
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uint8_t interface_class, uint8_t interface_subclass,
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uint8_t interface_protocol) {
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int i;
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for (i = 0; ids[i].terminating_entry == 0; i++) {
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if (ids[i].vendor_id == vendor_id &&
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ids[i].product_id == product_id &&
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(ids[i].interface_protocol_used == 0 ||
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(ids[i].interface_class == interface_class &&
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ids[i].interface_subclass == interface_subclass &&
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ids[i].interface_protocol == interface_protocol))) {
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return true;
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}
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}
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return false;
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}
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int usb_get_quirks(uint16_t vendor_id, uint16_t product_id,
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uint8_t interface_class, uint8_t interface_subclass,
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uint8_t interface_protocol)
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{
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int quirks = 0;
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if (usb_id_match(usbredir_raw_serial_ids, vendor_id, product_id,
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interface_class, interface_subclass, interface_protocol)) {
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quirks |= USB_QUIRK_BUFFER_BULK_IN;
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}
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if (usb_id_match(usbredir_ftdi_serial_ids, vendor_id, product_id,
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interface_class, interface_subclass, interface_protocol)) {
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quirks |= USB_QUIRK_BUFFER_BULK_IN | USB_QUIRK_IS_FTDI;
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}
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return quirks;
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}
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