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/******************************************************************************
* The MIT License
*
* Copyright (c) 2010 LeafLabs LLC.
*
* 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.
*****************************************************************************/
/*
* NOTE: This API is _unstable_ and will change drastically over time.
*/
#ifndef _USB_H_
#define _USB_H_
#include "libmaple_types.h"
#include "rcc.h"
#ifdef __cplusplus
extern "C" {
#endif
#ifndef USB_ISR_MSK
/* Handle CTRM, WKUPM, SUSPM, ERRM, SOFM, ESOFM, RESETM */
#define USB_ISR_MSK 0xBF00
#endif
typedef enum usb_dev_state {
USB_UNCONNECTED,
USB_ATTACHED,
USB_POWERED,
USB_SUSPENDED,
USB_ADDRESSED,
USB_CONFIGURED
} usb_dev_state;
/* Encapsulates global state formerly handled by usb_lib/ */
typedef struct usblib_dev {
uint32 irq_mask;
void (**ep_int_in)(void);
void (**ep_int_out)(void);
usb_dev_state state;
rcc_clk_id clk_id;
} usblib_dev;
extern usblib_dev *USBLIB;
void usb_init_usblib(usblib_dev *dev,
void (**ep_int_in)(void),
void (**ep_int_out)(void));
static inline uint8 usb_is_connected(usblib_dev *dev) {
return dev->state != USB_UNCONNECTED;
}
static inline uint8 usb_is_configured(usblib_dev *dev) {
return dev->state == USB_CONFIGURED;
}
#ifdef __cplusplus
}
#endif
#endif
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