mirror of
git://projects.qi-hardware.com/ben-wpan.git
synced 2024-11-27 02:31:31 +02:00
0293911fed
- usb.h, usb.c (user_get_descriptor): "reply" is simply "const uint8_t *", not "const uint8_t * const *"
148 lines
3.1 KiB
C
148 lines
3.1 KiB
C
/*
|
|
* fw/usb//usb.h - USB hardware setup and standard device requests
|
|
*
|
|
* Written 2008, 2009 by Werner Almesberger
|
|
* Copyright 2008, 2009 Werner Almesberger
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*/
|
|
|
|
|
|
#ifndef USB_H
|
|
#define USB_H
|
|
|
|
|
|
#include <stdint.h>
|
|
|
|
|
|
/*
|
|
* Descriptor types
|
|
*
|
|
* Reuse libusb naming scheme (/usr/include/usb.h)
|
|
*/
|
|
|
|
#define USB_DT_DEVICE 1
|
|
#define USB_DT_CONFIG 2
|
|
#define USB_DT_STRING 3
|
|
#define USB_DT_INTERFACE 4
|
|
#define USB_DT_ENDPOINT 5
|
|
|
|
/*
|
|
* Device classes
|
|
*
|
|
* Reuse libusb naming scheme (/usr/include/usb.h)
|
|
*/
|
|
|
|
#define USB_CLASS_PER_INTERFACE 0xfe
|
|
#define USB_CLASS_VENDOR_SPEC 0xff
|
|
|
|
/*
|
|
* Configuration attributes
|
|
*/
|
|
|
|
#define USB_ATTR_BUS_POWERED 0x80
|
|
#define USB_ATTR_SELF_POWERED 0x40
|
|
#define USB_ATTR_REMOTE_WAKEUP 0x20
|
|
|
|
/*
|
|
* Setup request types
|
|
*/
|
|
|
|
#define TO_DEVICE(req) (0x00 | (req) << 8)
|
|
#define FROM_DEVICE(req) (0x80 | (req) << 8)
|
|
#define TO_INTERFACE(req) (0x01 | (req) << 8)
|
|
#define FROM_INTERFACE(req) (0x81 | (req) << 8)
|
|
#define TO_ENDPOINT(req) (0x02 | (req) << 8)
|
|
#define FROM_ENDPOINT(req) (0x82 | (req) << 8)
|
|
|
|
/*
|
|
* Setup requests
|
|
*/
|
|
|
|
#define GET_STATUS 0x00
|
|
#define CLEAR_FEATURE 0x01
|
|
#define SET_FEATURE 0x03
|
|
#define SET_ADDRESS 0x05
|
|
#define GET_DESCRIPTOR 0x06
|
|
#define SET_DESCRIPTOR 0x07
|
|
#define GET_CONFIGURATION 0x08
|
|
#define SET_CONFIGURATION 0x09
|
|
#define GET_INTERFACE 0x0a
|
|
#define SET_INTERFACE 0x0b
|
|
#define SYNCH_FRAME 0x0c
|
|
|
|
|
|
/*
|
|
* Odd. sdcc seems to think "x" assumes the size of the destination, i.e.,
|
|
* uint8_t. Hence the cast.
|
|
*/
|
|
|
|
#define LE(x) ((uint16_t) (x) & 0xff), ((uint16_t) (x) >> 8)
|
|
|
|
#define LO(x) (((uint8_t *) &(x))[0])
|
|
#define HI(x) (((uint8_t *) &(x))[1])
|
|
|
|
|
|
#ifdef LOW_SPEED
|
|
#define EP0_SIZE 8
|
|
#else
|
|
#define EP0_SIZE 64
|
|
#endif
|
|
|
|
#define EP1_SIZE 64 /* simplify */
|
|
|
|
|
|
enum ep_state {
|
|
EP_IDLE,
|
|
EP_RX,
|
|
EP_TX,
|
|
EP_STALL,
|
|
};
|
|
|
|
struct ep_descr {
|
|
enum ep_state state;
|
|
uint8_t *buf;
|
|
uint8_t *end;
|
|
uint8_t size;
|
|
void (*callback)(void *user);
|
|
void *user;
|
|
};
|
|
|
|
struct setup_request {
|
|
uint8_t bmRequestType;
|
|
uint8_t bRequest;
|
|
uint16_t wValue;
|
|
uint16_t wIndex;
|
|
uint16_t wLength;
|
|
};
|
|
|
|
|
|
extern const uint8_t device_descriptor[];
|
|
extern const uint8_t config_descriptor[];
|
|
extern struct ep_descr eps[];
|
|
|
|
extern int (*user_setup)(const struct setup_request *setup);
|
|
extern int (*user_get_descriptor)(uint8_t type, uint8_t index,
|
|
const uint8_t **reply, uint8_t *size);
|
|
extern void (*user_reset)(void);
|
|
|
|
|
|
#define usb_left(ep) ((ep)->end-(ep)->buf)
|
|
#define usb_send(ep, buf, size, callback, user) \
|
|
usb_io(ep, EP_TX, (void *) buf, size, callback, user)
|
|
#define usb_recv(ep, buf, size, callback, user) \
|
|
usb_io(ep, EP_RX, buf, size, callback, user)
|
|
|
|
void usb_io(struct ep_descr *ep, enum ep_state state, uint8_t *buf,
|
|
uint8_t size, void (*callback)(void *user), void *user);
|
|
|
|
int handle_setup(const struct setup_request *setup);
|
|
int set_addr(uint8_t addr);
|
|
void usb_init(void);
|
|
void usb_poll(void);
|
|
|
|
#endif /* !USB_H */
|