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/*
* Copyright (c) 2016, Alex Taradov <alex@taradov.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. 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.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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 HOLDER 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 _USB_H_
#define _USB_H_
/*- Includes ----------------------------------------------------------------*/
#include <stdint.h>
#include <stdbool.h>
#include "utils.h"
/*- Definitions -------------------------------------------------------------*/
enum
{
USB_GET_STATUS = 0,
USB_CLEAR_FEATURE = 1,
USB_SET_FEATURE = 3,
USB_SET_ADDRESS = 5,
USB_GET_DESCRIPTOR = 6,
USB_SET_DESCRIPTOR = 7,
USB_GET_CONFIGURATION = 8,
USB_SET_CONFIGURATION = 9,
USB_GET_INTERFACE = 10,
USB_SET_INTERFACE = 11,
USB_SYNCH_FRAME = 12,
};
enum
{
USB_DEVICE_DESCRIPTOR = 1,
USB_CONFIGURATION_DESCRIPTOR = 2,
USB_STRING_DESCRIPTOR = 3,
USB_INTERFACE_DESCRIPTOR = 4,
USB_ENDPOINT_DESCRIPTOR = 5,
USB_DEVICE_QUALIFIER_DESCRIPTOR = 6,
USB_OTHER_SPEED_CONFIGURATION_DESCRIPTOR = 7,
USB_INTERFACE_POWER_DESCRIPTOR = 8,
USB_OTG_DESCRIPTOR = 9,
USB_DEBUG_DESCRIPTOR = 10,
USB_INTERFACE_ASSOCIATION_DESCRIPTOR = 11,
USB_BINARY_OBJECT_STORE_DESCRIPTOR = 15,
USB_DEVICE_CAPABILITY_DESCRIPTOR = 16,
};
enum
{
USB_DEVICE_RECIPIENT = 0,
USB_INTERFACE_RECIPIENT = 1,
USB_ENDPOINT_RECIPIENT = 2,
USB_OTHER_RECIPIENT = 3,
};
enum
{
USB_STANDARD_REQUEST = 0,
USB_CLASS_REQUEST = 1,
USB_VENDOR_REQUEST = 2,
};
enum
{
USB_OUT_TRANSFER = 0,
USB_IN_TRANSFER = 1,
};
enum
{
USB_IN_ENDPOINT = 0x80,
USB_OUT_ENDPOINT = 0x00,
USB_INDEX_MASK = 0x7f,
USB_DIRECTION_MASK = 0x80,
};
enum
{
USB_CONTROL_ENDPOINT = 0 << 0,
USB_ISOCHRONOUS_ENDPOINT = 1 << 0,
USB_BULK_ENDPOINT = 2 << 0,
USB_INTERRUPT_ENDPOINT = 3 << 0,
USB_NO_SYNCHRONIZATION = 0 << 2,
USB_ASYNCHRONOUS = 1 << 2,
USB_ADAPTIVE = 2 << 2,
USB_SYNCHRONOUS = 3 << 2,
USB_DATA_ENDPOINT = 0 << 4,
USB_FEEDBACK_ENDPOINT = 1 << 4,
USB_IMP_FB_DATA_ENDPOINT = 2 << 4,
};
/*- Types -------------------------------------------------------------------*/
typedef struct PACK
{
uint8_t bmRequestType;
uint8_t bRequest;
uint16_t wValue;
uint16_t wIndex;
uint16_t wLength;
} usb_request_t;
typedef struct PACK
{
uint8_t bLength;
uint8_t bDescriptorType;
} usb_descriptor_header_t;
typedef struct PACK
{
uint8_t bLength;
uint8_t bDescriptorType;
uint16_t bcdUSB;
uint8_t bDeviceClass;
uint8_t bDeviceSubClass;
uint8_t bDeviceProtocol;
uint8_t bMaxPacketSize0;
uint16_t idVendor;
uint16_t idProduct;
uint16_t bcdDevice;
uint8_t iManufacturer;
uint8_t iProduct;
uint8_t iSerialNumber;
uint8_t bNumConfigurations;
} usb_device_descriptor_t;
typedef struct PACK
{
uint8_t bLength;
uint8_t bDescriptorType;
uint16_t wTotalLength;
uint8_t bNumInterfaces;
uint8_t bConfigurationValue;
uint8_t iConfiguration;
uint8_t bmAttributes;
uint8_t bMaxPower;
} usb_configuration_descriptor_t;
typedef struct PACK
{
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bInterfaceNumber;
uint8_t bAlternateSetting;
uint8_t bNumEndpoints;
uint8_t bInterfaceClass;
uint8_t bInterfaceSubClass;
uint8_t bInterfaceProtocol;
uint8_t iInterface;
} usb_interface_descriptor_t;
typedef struct PACK
{
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bEndpointAddress;
uint8_t bmAttributes;
uint16_t wMaxPacketSize;
uint8_t bInterval;
} usb_endpoint_descriptor_t;
typedef struct PACK
{
uint8_t bLength;
uint8_t bDescriptorType;
uint16_t wLANGID;
} usb_string_descriptor_zero_t;
typedef struct PACK
{
uint8_t bLength;
uint8_t bDescriptorType;
uint16_t bString;
} usb_string_descriptor_t;
/*- Prototypes --------------------------------------------------------------*/
void usb_init(void);
void usb_send(int ep, uint8_t *data, int size, void (*callback)(void));
void usb_recv(int ep, uint8_t *data, int size, void (*callback)(void));
void usb_handle_standard_request(usb_request_t *request);
void usb_configuration_callback(int config);
#endif // _USB_H_
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