127 lines
3.8 KiB
C
127 lines
3.8 KiB
C
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/*
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* Copyright (c) 2009, Google Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef __DEV_UDC_H
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#define __DEV_UDC_H
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/* USB Device Controller Transfer Request */
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struct udc_request {
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void *buf;
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unsigned length;
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void (*complete)(struct udc_request *req, unsigned actual, int status);
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void *context;
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};
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/* endpoints are opaque handles specific to the particular device controller */
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struct udc_endpoint;
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struct udc_request *udc_request_alloc(void);
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void udc_request_free(struct udc_request *req);
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int udc_request_queue(struct udc_endpoint *ept, struct udc_request *req);
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int udc_request_cancel(struct udc_endpoint *ept, struct udc_request *req);
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#define UDC_TYPE_BULK_IN 1
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#define UDC_TYPE_BULK_OUT 2
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struct udc_endpoint *udc_endpoint_alloc(unsigned type, unsigned maxpkt);
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void udc_endpoint_free(struct udc_endpoint *ept);
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#define UDC_EVENT_ONLINE 1
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#define UDC_EVENT_OFFLINE 2
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struct udc_gadget {
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void (*notify)(struct udc_gadget *gadget, unsigned event);
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void *context;
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unsigned char ifc_class;
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unsigned char ifc_subclass;
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unsigned char ifc_protocol;
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unsigned char ifc_endpoints;
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const char *ifc_string;
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unsigned flags;
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struct udc_endpoint **ept;
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};
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struct udc_device {
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unsigned short vendor_id;
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unsigned short product_id;
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unsigned short version_id;
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const char *manufacturer;
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const char *product;
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const char *serialno;
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};
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int udc_init(struct udc_device *devinfo);
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int udc_register_gadget(struct udc_gadget *gadget);
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int udc_start(void);
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int udc_stop(void);
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/* these should probably go elsewhere */
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#define GET_STATUS 0
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#define CLEAR_FEATURE 1
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#define SET_FEATURE 3
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#define SET_ADDRESS 5
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#define GET_DESCRIPTOR 6
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#define SET_DESCRIPTOR 7
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#define GET_CONFIGURATION 8
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#define SET_CONFIGURATION 9
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#define GET_INTERFACE 10
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#define SET_INTERFACE 11
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#define SYNCH_FRAME 12
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#define TYPE_DEVICE 1
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#define TYPE_CONFIGURATION 2
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#define TYPE_STRING 3
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#define TYPE_INTERFACE 4
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#define TYPE_ENDPOINT 5
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#define DEVICE_READ 0x80
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#define DEVICE_WRITE 0x00
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#define INTERFACE_READ 0x81
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#define INTERFACE_WRITE 0x01
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#define ENDPOINT_READ 0x82
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#define ENDPOINT_WRITE 0x02
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#define TEST_SE0_NAK 0x0300
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#define TEST_PACKET 0x0400
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#define PORTSC_PTC (0xF << 16)
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#define PORTSC_PTC_SE0_NAK (0x03 << 16)
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#define PORTSC_PTC_TST_PKT (0x4 << 16)
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struct setup_packet {
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unsigned char type;
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unsigned char request;
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unsigned short value;
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unsigned short index;
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unsigned short length;
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} __attribute__ ((packed));
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#endif
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