blob: dc578a10e2f4e47190190df22f12c8bb68b41bbd [file] [log] [blame]
/*
* Copyright (c) 2009, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef __DEV_UDC_H
#define __DEV_UDC_H
/* USB Device Controller Transfer Request */
struct udc_request {
void *buf;
unsigned length;
void (*complete)(struct udc_request *req, unsigned actual, int status);
void *context;
};
/* endpoints are opaque handles specific to the particular device controller */
struct udc_endpoint;
struct udc_request *udc_request_alloc(void);
void udc_request_free(struct udc_request *req);
int udc_request_queue(struct udc_endpoint *ept, struct udc_request *req);
int udc_request_cancel(struct udc_endpoint *ept, struct udc_request *req);
#define UDC_TYPE_BULK_IN 1
#define UDC_TYPE_BULK_OUT 2
struct udc_endpoint *udc_endpoint_alloc(unsigned type, unsigned maxpkt);
void udc_endpoint_free(struct udc_endpoint *ept);
#define UDC_EVENT_ONLINE 1
#define UDC_EVENT_OFFLINE 2
struct udc_gadget {
void (*notify)(struct udc_gadget *gadget, unsigned event);
void *context;
unsigned char ifc_class;
unsigned char ifc_subclass;
unsigned char ifc_protocol;
unsigned char ifc_endpoints;
const char *ifc_string;
unsigned flags;
struct udc_endpoint **ept;
};
struct udc_device {
unsigned short vendor_id;
unsigned short product_id;
unsigned short version_id;
const char *manufacturer;
const char *product;
const char *serialno;
};
int udc_init(struct udc_device *devinfo);
int udc_register_gadget(struct udc_gadget *gadget);
int udc_start(void);
int udc_stop(void);
/* these should probably go elsewhere */
#define GET_STATUS 0
#define CLEAR_FEATURE 1
#define SET_FEATURE 3
#define SET_ADDRESS 5
#define GET_DESCRIPTOR 6
#define SET_DESCRIPTOR 7
#define GET_CONFIGURATION 8
#define SET_CONFIGURATION 9
#define GET_INTERFACE 10
#define SET_INTERFACE 11
#define SYNCH_FRAME 12
#define TYPE_DEVICE 1
#define TYPE_CONFIGURATION 2
#define TYPE_STRING 3
#define TYPE_INTERFACE 4
#define TYPE_ENDPOINT 5
#define DEVICE_READ 0x80
#define DEVICE_WRITE 0x00
#define INTERFACE_READ 0x81
#define INTERFACE_WRITE 0x01
#define ENDPOINT_READ 0x82
#define ENDPOINT_WRITE 0x02
#define TEST_SE0_NAK 0x0300
#define TEST_PACKET 0x0400
#define PORTSC_PTC (0xF << 16)
#define PORTSC_PTC_SE0_NAK (0x03 << 16)
#define PORTSC_PTC_TST_PKT (0x4 << 16)
struct setup_packet {
unsigned char type;
unsigned char request;
unsigned short value;
unsigned short index;
unsigned short length;
} __attribute__ ((packed));
#endif