cLK/lk/include/dev/usb.h

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2011-03-25 21:39:33 +00:00
/*
* Copyright (c) 2008 Travis Geiselbrecht
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef __DEV_USB_H
#define __DEV_USB_H
#include <sys/types.h>
#include <compiler.h>
/* top level initialization for usb client, abstracts away the interfaces */
typedef struct {
void *desc;
size_t len;
} usb_descriptor __ALIGNED(2);
typedef struct {
usb_descriptor string;
uint8_t id;
} usb_string;
/* complete usb config struct, passed in to usb_setup() */
typedef struct {
struct usb_descriptor_speed {
usb_descriptor device;
usb_descriptor device_qual;
usb_descriptor config;
} lowspeed, highspeed;
usb_descriptor langid;
} usb_config;
void usb_init(void);
/* external code needs to set up the usb stack via the following calls */
void usb_setup(usb_config *config);
/* apped new interface descriptors to the existing config if desired */
int usb_append_interface_highspeed(const uint8_t *int_descr, size_t len);
int usb_append_interface_lowspeed(const uint8_t *int_descr, size_t len);
void usb_add_string(const char *string, uint8_t id);
void usb_start(void);
void usb_stop(void);
#endif