54 lines
1.6 KiB
C
54 lines
1.6 KiB
C
/*
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* Copyright 2012 Jared Boone
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* Copyright 2013 Ben Gamari
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*
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* This file is part of HackRF.
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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, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#include <stdint.h>
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#include <stdbool.h>
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#include "usb.h"
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usb_transfer_descriptor_t usb_td[12] ATTR_ALIGNED(64);
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#define USB_TD_INDEX(endpoint_address) (((endpoint_address & 0xF) * 2) + ((endpoint_address >> 7) & 1))
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usb_transfer_descriptor_t* usb_transfer_descriptor(
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const uint_fast8_t endpoint_address
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) {
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return &usb_td[USB_TD_INDEX(endpoint_address)];
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}
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void usb_endpoint_schedule(
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const usb_endpoint_t* const endpoint,
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void* const data,
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const uint32_t maximum_length
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) {
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usb_endpoint_schedule_wait(endpoint,
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usb_transfer_descriptor(endpoint->address),
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data,
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maximum_length);
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}
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void usb_endpoint_schedule_ack(
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const usb_endpoint_t* const endpoint
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) {
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usb_endpoint_schedule(endpoint, 0, 0);
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}
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