| 1 | /*
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| 2 | * Copyright (c) 2011 Vojtech Horky
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | /** @addtogroup libusb
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| 30 | * @{
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| 31 | */
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| 32 | /** @file
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| 33 | * Standard USB requests.
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| 34 | */
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| 35 | #ifndef LIBUSB_REQUEST_H_
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| 36 | #define LIBUSB_REQUEST_H_
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| 37 |
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| 38 | #include <sys/types.h>
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| 39 | #include <usb/usb.h>
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| 40 | #include <usb/pipes.h>
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| 41 | #include <usb/descriptor.h>
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| 42 |
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| 43 | /** Standard device request. */
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| 44 | typedef enum {
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| 45 | USB_DEVREQ_GET_STATUS = 0,
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| 46 | USB_DEVREQ_CLEAR_FEATURE = 1,
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| 47 | USB_DEVREQ_SET_FEATURE = 3,
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| 48 | USB_DEVREQ_SET_ADDRESS = 5,
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| 49 | USB_DEVREQ_GET_DESCRIPTOR = 6,
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| 50 | USB_DEVREQ_SET_DESCRIPTOR = 7,
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| 51 | USB_DEVREQ_GET_CONFIGURATION = 8,
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| 52 | USB_DEVREQ_SET_CONFIGURATION = 9,
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| 53 | USB_DEVREQ_GET_INTERFACE = 10,
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| 54 | USB_DEVREQ_SET_INTERFACE = 11,
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| 55 | USB_DEVREQ_SYNCH_FRAME = 12,
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| 56 | USB_DEVREQ_LAST_STD
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| 57 | } usb_stddevreq_t;
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| 58 |
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| 59 | /** Device request setup packet.
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| 60 | * The setup packet describes the request.
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| 61 | */
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| 62 | typedef struct {
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| 63 | /** Request type.
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| 64 | * The type combines transfer direction, request type and
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| 65 | * intended recipient.
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| 66 | */
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| 67 | uint8_t request_type;
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| 68 | /** Request identification. */
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| 69 | uint8_t request;
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| 70 | /** Main parameter to the request. */
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| 71 | union {
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| 72 | uint16_t value;
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| 73 | /* FIXME: add #ifdefs according to host endianess */
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| 74 | struct {
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| 75 | uint8_t value_low;
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| 76 | uint8_t value_high;
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| 77 | };
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| 78 | };
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| 79 | /** Auxiliary parameter to the request.
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| 80 | * Typically, it is offset to something.
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| 81 | */
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| 82 | uint16_t index;
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| 83 | /** Length of extra data. */
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| 84 | uint16_t length;
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| 85 | } __attribute__ ((packed)) usb_device_request_setup_packet_t;
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| 86 |
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| 87 | int usb_control_request_set(usb_endpoint_pipe_t *,
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| 88 | usb_request_type_t, usb_request_recipient_t, uint8_t,
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| 89 | uint16_t, uint16_t, void *, size_t);
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| 90 |
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| 91 | int usb_control_request_get(usb_endpoint_pipe_t *,
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| 92 | usb_request_type_t, usb_request_recipient_t, uint8_t,
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| 93 | uint16_t, uint16_t, void *, size_t, size_t *);
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| 94 |
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| 95 | int usb_request_set_address(usb_endpoint_pipe_t *, usb_address_t);
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| 96 | int usb_request_get_descriptor(usb_endpoint_pipe_t *, usb_request_type_t,
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| 97 | uint8_t, uint8_t, uint16_t, void *, size_t, size_t *);
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| 98 | int usb_request_get_device_descriptor(usb_endpoint_pipe_t *,
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| 99 | usb_standard_device_descriptor_t *);
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| 100 | int usb_request_get_bare_configuration_descriptor(usb_endpoint_pipe_t *, int,
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| 101 | usb_standard_configuration_descriptor_t *);
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| 102 | int usb_request_get_full_configuration_descriptor(usb_endpoint_pipe_t *, int,
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| 103 | void *, size_t, size_t *);
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| 104 | int usb_request_set_configuration(usb_endpoint_pipe_t *, uint8_t);
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| 105 |
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| 106 | #endif
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| 107 | /**
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| 108 | * @}
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| 109 | */
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